Patent application number | Description | Published |
20100238850 | AP TO LEGACY STATION SDMA PROTOCOL - Certain aspects of the present disclosure provide a protocol for SDMA communication between an access point and multiple wireless apparatuses, such as single antenna stations. | 09-23-2010 |
20100246399 | MULTI-CHANNEL MANAGEMENT AND LOAD BALANCING - Certain aspects of the present disclosure provide a protocol to allow for load balancing between multiple frequency channels in a wireless communications system. | 09-30-2010 |
20100248630 | MULTI-CHANNEL MANAGEMENT AND LOAD BALANCING - Certain aspects of the present disclosure provide a protocol to allow for load balancing between multiple frequency channels in a wireless communications system. | 09-30-2010 |
20100278062 | MAC ARCHITECTURES FOR WIRELESS COMMUNICATIONS USING MULTIPLE PHYSICAL LAYERS - Certain aspects of the present disclosure provide techniques for wireless communications using two different physical layers with a common medium access control layer. | 11-04-2010 |
20110069629 | PHYSICAL LAYER METRICS TO SUPPORT ADAPTIVE STATION-DEPENDENT CHANNEL STATE INFORMATION FEEDBACK RATE IN MULTI-USER COMMUNICATION SYSTEMS - Certain aspects of the present disclosure present physical layer metrics for supporting adaptive station-dependent channel state information feedback rate in multi-user communication systems. For certain aspects, the physical layer metrics may be calculated at the stations and communicated to the AP. For certain aspects, the metrics may be calculated at an access point utilizing information about channel characteristics of stations available at the access point. | 03-24-2011 |
20110090880 | WIRELESS COMMUNICATION UTILIZING MIXED PROTOCOLS - Certain aspects of the present disclosure provide techniques for wireless communications using two different physical layers with a common medium access control layer. | 04-21-2011 |
20110170468 | METHODS AND APPARATUS FOR ENABLING DISTRIBUTED BEACON TRANSMISSIONS - A method to support distributed beacon transmission in a directional communication network is provided. The method may comprise receiving, by a second apparatus, a first reference signal from a first apparatus, wherein the first reference signal comprises network shared information associated with a first network and specific information associated with the first apparatus, generating a second reference signal by updating the network shared information in the first reference signal to include specific information associated with second apparatus, and transmitting the second reference signal at a defined time, wherein the defined time is selected to minimize any interference associated with a subsequent transmission of the first reference signal by the first apparatus. | 07-14-2011 |
20110194434 | RATE SELECTION FOR EIGENSTEERING IN A MIMO COMMUNICATION SYSTEM - Techniques for selecting rates for data transmission on eigenmodes of a MIMO channel are described. An access point transmits an unsteered MIMO pilot via the downlink. A user terminal estimates the downlink channel quality based on the downlink unsteered MIMO pilot and transmits an unsteered MIMO pilot and feedback information via the uplink. The feedback information is indicative of the downlink channel quality. The access point estimates the uplink channel quality and obtains a channel response matrix based on the uplink unsteered MIMO pilot, decomposes the channel response matrix to obtain eigenvectors and channel gains for the eigenmodes of the downlink, and selects rates for the eigenmodes based on the estimated uplink channel quality, the channel gains for the eigenmodes, and the feedback information. The access point processes data based on the selected rates and transmits steered data and a steered MIMO pilot on the eigenmodes with the eigenvectors. | 08-11-2011 |
20110199946 | METHOD AND APPARATUS FOR SUPPORTING ADAPTIVE CHANNEL STATE INFORMATION FEEDBACK RATE IN MULTI-USER COMMUNICATION SYSTEMS - Certain aspects of the present disclosure relate to techniques for achieving adaptive channel state information (CSI) feedback rate in multi-user communication systems. A rate by which CSI feedback can be transmitted from each user station of a wireless system to a serving access point may be adjusted based on evolution of a channel between that user station and the access point. | 08-18-2011 |
20110206017 | METHODS AND APPARATUSES FOR BEACON TRANSMISSION - Various methods and apparatuses for beacon transmission in an ad-hoc peer-to-peer network are disclosed. In one aspect, an apparatus for communication is disclosed, the apparatus comprising a processing system configured to identify a plurality of successive beacon transmission periods separated by at least one non-beacon transmission period and to select one or more beacon transmission periods from the plurality of successive beacon transmission periods and a transmitter configured to transmit one or more beacons during each of the selected beacon transmission periods. | 08-25-2011 |
20110211562 | METHODS AND APPARATUSES FOR BEACON TRANSMISSION - Various methods and apparatuses for beacon transmission in an ad-hoc peer-to-peer network are disclosed. In one aspect, an apparatus for communication is disclosed, the apparatus comprising a processing system configured to sense a channel during a first period comprising at least a first portion of a beacon transmission period and select, based on the sensing, a second period comprising at least a second portion of a beacon transmission period; and a transmitter configured to transmit one or more beacons during the second period. | 09-01-2011 |
20110211616 | METHODS AND APPARATUSES FOR BEACON TRANSMISSION - Various methods and apparatuses for beacon transmission in an ad-hoc peer-to-peer network are disclosed. In one aspect, an apparatus for communication is disclosed, the apparatus comprising a processing system configured to determine device-independent beacon data, determine device-dependent beacon data, and to spread the device-dependent beacon data using one or more spreading codes anda transmitter configured to transmit one or more beacons during a beacon transmission period, wherein each beacon comprises the device-independent beacon data and the spread device-dependent beacon data. | 09-01-2011 |
20110222472 | PROTOCOL TO SUPPORT ADAPTIVE STATION-DEPENDENT CHANNEL STATE INFORMATION FEEDBACK RATE IN MULTI-USER COMMUNICATION SYSTEMS - Methods and apparatuses are proposed for supporting one or more user-dependent channel state information (CSI) feedback rates in a downlink spatial division multiple access (SDMA) system. For certain aspects, an access point (AP) may receive a channel evolution feedback from one or more stations and send a request for CSI to the stations whose CSI values need to be updated. For certain aspects, the AP may poll the stations for updated CSI values. For certain aspects, deterministic back-off timers may be assigned to the stations indicating when to send their CSI feedback. The proposed methods may improve system performance. | 09-15-2011 |
20110222473 | PROTOCOL TO SUPPORT ADAPTIVE STATION-DEPENDENT CHANNEL STATE INFORMATION FEEDBACK RATE IN MULTI-USER COMMUNICATION SYSTEMS - Methods and apparatuses are proposed for supporting one or more user-dependent channel state information (CSI) feedback rates in a downlink spatial division multiple access (SDMA) system. For certain aspects, an access point (AP) may receive a channel evolution feedback from one or more stations and send a request for CSI to the stations whose CSI values need to be updated. For certain aspects, the AP may poll the stations for updated CSI values. For certain aspects, deterministic back-off timers may be assigned to the stations indicating when to send their CSI feedback. The proposed methods may improve system performance. | 09-15-2011 |
20110228730 | SCHEDULING SIMULTANEOUS TRANSMISSIONS IN WIRELESS NETWORK - Certain aspects of the present disclosure relate to a technique for scheduling simultaneous communications of multiple pairs of wireless nodes in a wireless network. | 09-22-2011 |
20110228749 | METHODS AND APPARATUS FOR SUPPORTING DATA FLOWS OVER MULTIPLE RADIO PROTOCOLS - A method to seamlessly support data flows over multiple networks using different radio protocols is provided. The method may include supporting a data flow over a wireless link using a first radio protocol, enabling a second radio protocol for the data flow, based on one or more parameters, selecting at least one of the first radio protocol or the second radio protocol to support the data flow over the wireless link, while maintaining the data flow over the wireless link, and communicating the data flow over the wireless link using the selected at least one of the first radio protocol or the second radio protocol. | 09-22-2011 |
20110235533 | PROTOCOL TO SUPPORT ADAPTIVE STATION-DEPENDENT CHANNEL STATE INFORMATION FEEDBACK RATE IN MULTI-USER COMMUNICATION SYSTEMS - Methods and apparatuses are proposed for supporting one or more user-dependent channel state information (CSI) feedback rates in a downlink spatial division multiple access (SDMA) system. For certain aspects, an access point (AP) may receive a channel evolution feedback from one or more stations and send a request for CSI to the stations whose CSI values need to be updated. For certain aspects, the AP may poll the stations for updated CSI values. For certain aspects, deterministic back-off timers may be assigned to the stations indicating when to send their CSI feedback. The proposed methods may improve system performance. | 09-29-2011 |
20110286322 | METHOD AND APPARATUS FOR SEAMLESS TRANSITIONS OF DATA TRANSMISSION TRANSFER BETWEEN RADIO LINKS - A method for wireless communications is provided that includes generating an index for a plurality of packets for use in a first radio link for transmission to an apparatus; transmitting the plurality of packets using a second radio link to the apparatus; determining transmission state information indicating whether each packet in the plurality of packets have been received by the apparatus; and transmitting additional packets based on the index and the transmission state information. Apparatuses for performing the methods are also disclosed. | 11-24-2011 |
20110286377 | METHOD AND APPARATUS FOR MULTICAST BLOCK ACKNOWLEDGMENT - A method for wireless communications is disclosed that includes generating and interpreting multicast block acknowledgement frames. Group identifiers and apparatus identifiers are used for indicating the presence of aggregated acknowledgement information and for extracting acknowledgement information for individual stations. | 11-24-2011 |
20110286403 | METHOD AND APPARATUS OF CONFIRMING RECEPTION OF CLEAR-TO-SEND FRAME FOR VIRTUAL CARRIER SENSING - Certain aspects of the present disclosure relate to a technique for reserving a communication medium by a wireless node when another wireless node out of range of the wireless node is transmitting. | 11-24-2011 |
20110286404 | METHOD AND APPARATUS FOR SEAMLESS TRANSITIONS OF TRANSFER BETWEEN RADIO LINKS FOR DATA RECEPTION - A method for wireless communications is provided that includes receiving a plurality of packets using a first radio link from an apparatus; reconstructing an index for the plurality of packets for use in a second radio link; determining reception state information indicating whether each packet in the plurality of packets has been received correctly; and receiving additional packets based on the index and the reception state information. Apparatuses for performing the methods are also disclosed. | 11-24-2011 |
20110299480 | METHOD AND APPARATUS FOR SUPPORTING ADAPTIVE CHANNEL STATE INFORMATION FEEDBACK RATE IN MULTI-USER COMMUNICATION SYSTEMS - Certain aspects of the present disclosure relate to techniques for achieving adaptive channel state information (CSI) feedback rate in multi-user communication systems. A rate by which CSI feedback can be transmitted from each user station of a wireless system to a serving access point may be adjusted based on evolution of a channel between that user station and the access point. | 12-08-2011 |
20110305209 | RATE ADAPTATION FOR SDMA - A transmission parameter for a link in a wireless network is adapted for a current simultaneous transmission based on a loss parameter. The loss parameter is useable to determine an allocation for a wireless node of a plurality of wireless nodes participating in the simultaneous transmission. In some examples, the selected transmission parameter and loss parameters for a previous transmission, along with the loss parameter for the current simultaneous transmission are used to determine the transmission parameter. In some embodiments, an access point (AP) determines and communicates a loss parameter to a plurality of access terminals (AT). Each AT determines a modulation and coding scheme (MCS) based at least in part on the loss parameter. Each AT simultaneously transmits at least one data stream to the AP in accordance with the determined MCS. In some other embodiments, the transmission rate for simultaneous downlink communications is similarly adapted. | 12-15-2011 |
20120033614 | VHT-SIG-B FIELD IN NULL DATA PACKETS (NDPs) - Certain aspects of the present disclosure relate to methods and apparatus for using information in a Very High Throughput Signal B (VHT-SIG-B) field in the preamble of a null data packet (NDP). Retaining the VHT-SIG-B field in NDPs offers several advantages, such as maintaining a unified IEEE 802.11ac preamble structure, providing for 4 μs extra time to process beamforming feedback, and being able to use information in the VHT-SIG-B field to determine a level of interference in the NDP. | 02-09-2012 |
20120039266 | EFFICIENT GROUP DEFINITION AND OVERLOADING FOR MULTIUSER MIMO TRANSMISSIONS - Certain aspects of the present disclosure present a technique for efficient group definition and overloading for downlink multiuser multiple-input multiple-output (MU-MIMO) transmissions. | 02-16-2012 |
20120076073 | PROTECTION MECHANISMS FOR MULTI-USER MIMO TRANSMISSIONS - Certain aspects of the present disclosure relate to techniques for medium reservation in the case of multi-user (MU) communications. Multiple mechanisms are supported for protecting MU transmissions, wherein appropriate control messages can be exchanged between an access point and served user stations before transmitting downlink data packets. | 03-29-2012 |
20120076081 | PROTECTION MECHANISMS FOR MULTI-USER MIMO TRANSMISSIONS - Certain aspects of the present disclosure relate to techniques for medium reservation in the case of multi-user (MU) communications. Multiple mechanisms are supported for protecting MU transmissions, wherein appropriate control messages can be exchanged between an access point and served user stations before transmitting downlink data packets. | 03-29-2012 |
20120087316 | PROTECTION MECHANISMS FOR MULTI-USER MIMO TRANSMISSIONS - Certain aspects of the present disclosure relate to techniques for medium reservation in the case of multi-user (MU) communications. Multiple mechanisms are supported for protecting MU transmissions, wherein appropriate control messages can be exchanged between an access point and served user stations before transmitting downlink data packets. | 04-12-2012 |
20120106371 | COLLISION DETECTION AND BACKOFF WINDOW ADAPTATION FOR MULTIUSER MIMO TRANSMISSION - Certain aspects of the present disclosure generally apply to a wireless local area network (WLAN) where an access point (AP) has data to send to multiple stations (STAs). By using the Downlink Spatial Division Multiple Access (DL-SDMA) technique, the AP may send data at the same time towards multiple STAs. Certain aspects of the present disclosure provide techniques and apparatuses for detecting that a multiuser multiple-input multiple-output (MU-MIMO) transmission has suffered a collision and to adapting a contention window (CW) size for a backoff counter applied to a subsequent MU-MIMO transmission. | 05-03-2012 |
20120115536 | POWER CONTROL FOR TV WHITE SPACE DEVICES - Certain aspects of the present disclosure provide techniques and apparatus for using power control in a television white space (TVWS) network. One example method generally includes generating, at a first apparatus, a message for controlling a transmit power of a second apparatus—the message including a first indication of a first transmitter power backoff for the first apparatus and a second indication of a second transmitter power backoff for the second apparatus—and transmitting, to the second apparatus, the message based on the first transmitter power backoff. In this manner, messaging may be used to enable transmit power control of devices in a TVWS network, which may operate in accordance with the IEEE 802.11af standard. | 05-10-2012 |
20120120931 | EFFICIENT GROUP ID MANAGEMENT FOR WIRELESS LOCAL AREA NETWORKS (WLANS) - Certain aspects of the present disclosure provide techniques and apparatus for efficiently managing overloaded group IDs for groups of stations (STAs) receiving simultaneous transmission in a multiuser multiple-input multiple-output (MU-MIMO) scheme. In this manner, overloading for some of the groups may allow flexibility at an access point (AP) to trade off between support for more STA combinations and power savings. As disclosed herein, the group ID management scheme may be flexible enough to support APs with both overloaded and non-overloaded groups and APs with only non-overloaded groups. This scheme also achieves these benefits for overloading with a low overhead. | 05-17-2012 |
20120140842 | SIGNALING TO PROTECT ADVANCED RECEIVER PERFORMANCE IN WIRELESS LOCAL AREA NETWORKS (LANS) - Certain aspects of the present disclosure relate to techniques that may be used to help control aspects of beamforming by a beamformee. According to certain aspects, a beamformee may be able to signal, to a beamformer, a maximum number of transmit spatial streams to use for single-user beamformed transmissions. | 06-07-2012 |
20120155447 | METHOD AND APPARATUS FOR SUPPORTING MODULATION-CODING SCHEME SET IN VERY HIGH THROUGHPUT WIRELESS SYSTEMS - Certain aspects of the present disclosure relate to techniques for designing Modulation-Coding Scheme (MSC) set fields in a transmission frame of Very High Throughput (VHT) wireless systems. | 06-21-2012 |
20120170563 | METHOD AND APPARATUS FOR IMPROVING THROUGHPUT OF 5 MHZ WLAN TRANSMISSIONS - Certain aspects of the present disclosure relate to techniques for improving a transmission throughput of communications based on IEEE 802.11af physical (PHY) layer in television white space (TVWS) spectrum. In one aspect, a transmission preamble with a Legacy Signal (L-SIG) field is constructed, wherein the L-SIG field comprises a code indicating duration of a cyclic prefix (CP) of a packet following the preamble. The transmissions can be performed using 5 MHz bandwidth of the TVWS spectrum. | 07-05-2012 |
20120176921 | CHANNEL STATE INFORMATION (CSI) FEEDBACK PROTOCOL FOR MULTIUSER MULTIPLE INPUT, MULTIPLE OUTPUT (MU-MIMO) - Certain aspects of the present disclosure provide techniques and apparatus for using channel state information (CSI) feedback for multiuser multiple-input multiple-output (MU-MIMO) transmission. For certain aspects, a method of wireless communications generally includes generating a training frame and transmitting the generated training frame. The training frame typically includes first information identifying a group of one or more apparatuses and second information indicating whether each of the apparatuses in the group is to determine at least one characteristic of a channel. For other aspects, a method of wireless communications generally includes receiving a request at an apparatus and transmitting, in response to the received request, a packet using frame aggregation, wherein two or more frames are transmitted in a single transmission using a single header. | 07-12-2012 |
20120176974 | NETWORK SETUP IN WIDE CHANNEL WIRELESS LOCAL AREA NETWORKS (WLANs) - Methods and apparatus for network setup in wide channel WLANs are provided. Techniques for co-existence of 20 MHz and 40 MHz networks (e.g., as defined by IEEE 802.11n) may be extended to 80 MHz and 160 MHz networks. For example, a primary channel of an existing network may be designated as the primary channel of a new network. Further, a primary channel of the existing network may not be used as a secondary channel in the new network. Intolerance operation between networks may include a first network releasing one or more channels in response to an intolerance indication received from a second network. Furthermore, in response to the intolerance indication from the second network, the first network may utilize one or more channels for communicating in the first network using a first set of access parameters. The access parameters may depend on the intolerance indication. | 07-12-2012 |
20120177018 | PROTOCOL FOR CHANNEL STATE INFORMATION FEEDBACK - Certain aspects of the present disclosure relate to a low-overhead method for communicating Channel State Information (CSI) feedback in Very High Throughput (VHT) wireless communications systems. The present disclosure also provides packet formats for Null Data Packet Announcement (NDPA), CSI Poll and CSI feedback. In some cases, the CSI feedback may be too large to be carried in a single Media Access Control (MAC) protocol data unit (MPDU) or a Physical Layer (PHY) protocol data unit (PPDU), and a proposed protocol for CSI feedback segmentation can be then utilized. | 07-12-2012 |
20120182980 | METHOD AND APPARATUS FOR SAVING POWER BY USING SIGNAL FIELD OF PREAMBLE - Certain aspects of the present disclosure relate to a technique for power saving at mobile stations in Very High Throughput (VHT) systems using signal field bits of a preamble with a limited transmission overhead. The present disclosure proposes a method of indicating to a destination through a preamble cyclic redundancy check (CRC) checksum that the destination may be the intended destination of a transmission packet. The present disclosure also proposes a method of indicating to a destination through a preamble CRC that the destination may not be the intended destination of a transmission packet. In this case, decoding of the received packet can be terminated in order to save power at a receiving device. | 07-19-2012 |
20120201196 | SIGNALING FOR EXTENDED MPDU, A-MPDU AND A-MSDU FRAME FORMATS - Certain aspects of the present disclosure provide techniques for signaling extended sizes for Medium Access Control (MAC) Protocol Data Unit (MPDU), Aggregated MPDU (A-MPDU) and Aggregated MAC Service Data Unit (A-MSDU) frame formats. A first technique proposes modifications to the current specifications of the IEEE 802.11 | 08-09-2012 |
20120207087 | AGGREGATED MPDU (A-MPDU) NUMEROLOGY AND MPDU GROUPING - Certain aspects of the present disclosure provide techniques and apparatus for transmitting, receiving, and acknowledging MAC protocol data units (MPDUs), allowing single bits in a Block Acknowledgment (BA) bitmap to acknowledge receipt of multiple MPDUs. As a result, a greater number of MPDUs may be acknowledged than if each bit acknowledged only a single MPDU. By reducing the overhead associated with a re-transmission bitmap, a greater number of MPDUs may be aggregated, thereby increasing overall throughput. | 08-16-2012 |
20120213214 | DATA TRANSMISSION COEXISTENCE WITHIN TELEVISION WHITE SPACE CHANNELS - Methods, systems, and/or devices are provided that permit data transmissions over unused television channels. An unused channel within a television broadcast frequency spectrum is first identified. A downclocked waveform (for data transmission) is then generated by applying a factor to a clock that causes a waveform bandwidth to be reduced from a first bandwidth to a second bandwidth, wherein the second bandwidth of the downclocked waveform is less than a channel bandwidth for the identified unused channel. The downclocked waveform may then be configured so that it coexists with a larger waveform having a third bandwidth that is greater than the channel bandwidth. The downclocked waveform is then wirelessly transmitted from the transmitter device over the identified unused channel. | 08-23-2012 |
20120213308 | MANAGING ACKNOLWLEDGEMENT MESSAGES FROM MULTIPLE DESTINATIONS FOR MULTI USER MIMO TRANSMISSIONS - Certain aspects of the present disclosure generally relate to apparatus and methods for managing acknowledgement messages from multiple destinations for multi-user multiple-input multiple-output (MU-MIMO) transmissions. According to certain aspects, a polled block acknowledgement (BA) mechanism can be considered mandatory to an acknowledgement protocol, and a sequential (or other type of scheduled/deterministic) mechanism can be considered optional. | 08-23-2012 |
20120218947 | RULES FOR MULTIPLEXING DATA OF DIFFERENT ACCESS CATEGORIES IN MULTI USER MIMO WIRELESS SYSTEMS - Certain aspects of the present disclosure relate to a technique for multiplexing data of different access categories in Multi User Multiple Input Multiple Output (MU-MIMO) wireless systems. The present disclosure defines rules for multiplexing data of an access category that did not win the contention together with data that won the contention. In this way, a desired Quality of Service (QoS) of each access category class can be preserved. | 08-30-2012 |
20120238226 | DATA TRANSMISSION COEXISTENCE USING CONSTANT SYMBOL DURATION WITHIN TELEVISION WHITE SPACE CHANNELS - Methods, systems, and/or devices are provided that permit data transmissions over unused television channels. An unused channel within a television broadcast frequency spectrum is first identified. A downclocked waveform (for data transmission) is then generated by applying a factor to a clock that causes a waveform bandwidth to be reduced from a first bandwidth to a second bandwidth, wherein the second bandwidth of the downclocked waveform is less than a channel bandwidth for the identified unused channel. The downclocked waveform may then be configured so that it coexists with a larger waveform having a third bandwidth that is greater than the channel bandwidth. The downclocked waveform is then wirelessly transmitted from the transmitter device over the identified unused channel. | 09-20-2012 |
20120243485 | REQUEST TO SEND (RTS) AND CLEAR TO SEND (CTS) FOR MULTICHANNEL OPERATIONS - Certain aspects of the present disclosure provide techniques and apparatus for signaling the bandwidth to be used for wireless communications using an RTS/CTS (Request to Send/Clear to Send) frame exchange, providing for bandwidths of at least 20 MHz, 40 MHz, 80 MHz, 160 MHz, or higher. This exchange of bandwidth information may be performed implicitly—by determining the channels in which the RTS/CTS frames are actually sent—or explicitly. In addition to this bandwidth information exchange, aspects of the present disclosure may also allow for Network Allocation Vector (NAV) protection in multiple channels. In this manner, the wireless medium may be reserved, and the transmission may be protected from hidden nodes. | 09-27-2012 |
20120250543 | SYSTEMS AND METHODS FOR COMMUNICATION OF CHANNEL STATE INFORMATION - Certain aspects of the present disclosure relate to a technique for communicating Channel State Information (CSI) feedback. In some aspects, the CSI feedback is communicated in a very high throughput (VHT) wireless communications system. | 10-04-2012 |
20120250618 | SYSTEMS AND METHODS FOR COMMUNICATION OF CHANNEL STATE INFORMATION - Certain aspects of the present disclosure relate to a technique for communicating Channel State Information (CSI) feedback. In some aspects, the CSI feedback is communicated in a very high throughput (VHT) wireless communications system. | 10-04-2012 |
20120250668 | SYSTEMS, METHODS AND APPARATUS FOR DETERMINING CONTROL FIELD AND MODULATION CODING SCHEME INFORMATION - Systems, method and apparatus of managing wireless communication are described herein. | 10-04-2012 |
20120250796 | SYSTEMS, METHODS AND APPARATUS FOR DETERMINING CONTROL FIELD AND MODULATION CODING SCHEME INFORMATION - Systems, method and apparatus of managing wireless communication are described herein. | 10-04-2012 |
20120257567 | SYSTEMS AND METHODS FOR COMMUNICATION OF CHANNEL STATE INFORMATION - Certain aspects of the present disclosure relate to a technique for communicating Channel State Information (CSI) feedback. In some aspects, the CSI feedback is communicated in a very high throughput (VHT) wireless communications system. | 10-11-2012 |
20120257605 | SYSTEMS AND METHODS FOR COMMUNICATION OF CHANNEL STATE INFORMATION - Certain aspects of the present disclosure relate to a technique for communicating Channel State Information (CSI) feedback. In some aspects, the CSI feedback is communicated in a very high throughput (VHT) wireless communications system. | 10-11-2012 |
20120257606 | SYSTEMS, METHODS AND APPARATUS FOR DETERMINING CONTROL FIELD AND MODULATION CODING SCHEME INFORMATION - Systems, method and apparatus of managing wireless communication are described herein. | 10-11-2012 |
20120263156 | METHOD AND APPARATUS FOR GENERATING VARIOUS TRANSMISSION MODES FOR WLAN SYSTEMS - Certain aspects of the present disclosure relate to a technique for generating 40+40 MHz and 40+40+40+40 MHz transmission modes for IEEE 802.11 wireless communications systems using Very High Throughput (VHT) waveforms with application to Television White Space (TVWS) spectrum. | 10-18-2012 |
20120282959 | PROTOCOLS FOR ENABLING MODE 1 AND MODE 2 DEVICES IN TV WHITE SPACE NETWORKS - Certain aspects of the present disclosure provide techniques and apparatus for operating in a television white space (TVWS) network. One example method generally includes receiving, at an apparatus, a message with a field indicating a current version of an unused frequency spectrum map (e.g., a white space map (WSM)), the unused frequency spectrum map indicating channels usable for wireless communications; determining whether the current version of the unused frequency spectrum map is different than a previous version of the unused frequency spectrum map; and using a channel for wireless communications based on the determination. Another example method generally includes accessing a database of available channels for a current location of an apparatus via a neighboring portable or fixed enabling apparatus and enabling one or more portable dependent apparatuses for the wireless communications via one or more of the available channels. | 11-08-2012 |
20120289192 | BEACON AND MANAGEMENT INFORMATION ELEMENTS WITH INTEGRITY PROTECTION - Certain aspects of the present disclosure relate to protecting integrity of transmitted messages in a wireless communications. | 11-15-2012 |
20130010708 | GROUP ID ALLOCATION FOR DIRECT LINK SERVICE (DLS) - Certain aspects of the present disclosure provide techniques and apparatus for managing group identifiers (IDs) in multiuser multiple-input multiple-output (MU-MIMO) schemes to ensure that the group ID maps to the same assigned spatial stream position for a particular station (STA), for either Direct Link Service (DLS) or downlink (DL) MU-MIMO transmissions. One example method generally includes transmitting, form a first apparatus to a second apparatus, a message requesting assignment of a group ID identifying a group of apparatuses for receiving MU transmissions; and receiving, from the second apparatus, an indication of the assigned group ID, such that spatial stream assignments for the group of apparatuses are the same between the first and second apparatuses, the spatial stream assignments corresponding to the assigned group ID. | 01-10-2013 |
20130016670 | METHODS AND APPARATUSES FOR COMMUNICATING IN TELEVISION WHITE SPACE (TVWS) BASED ON TVWS ENABLEMENT SIGNAL - Certain aspects of the present disclosure relate to techniques for supporting television white space (TVWS) communication. In an aspect of the present disclosure, a low-rate TVWS enabler (Mode II wireless communication device) may provide initial enablement for all Mode I devices (e.g., access points and user terminals), as well as it may transmit a contact verification signal (CVS) on a regular basis to keep the Mode I devices enabled for the TVWS communication. | 01-17-2013 |
20130016760 | METHODS AND APPARATUSES FOR LOW-RATE TELEVISION WHITE SPACE (TVWS) ENABLEMENT - Certain aspects of the present disclosure relate to techniques for supporting television white space (TVWS) communication. In an aspect of the present disclosure, a low-rate TVWS enabler (Mode II wireless communication device) may provide initial enablement for all Mode I devices (e.g., access points and user terminals), as well as it may transmit a contact verification signal (CVS) on a regular basis to keep the Mode I devices enabled for the TVWS communication. | 01-17-2013 |
20130022032 | SYSTEMS AND METHODS FOR COMMUNICATING IN A NETWORK - Systems, methods, and devices to enable compressed media access control headers and frame check sequences for wireless local area network (WLAN) systems are described herein. In one aspect, the header information in data packets sent between devices is compressed so as to reduce the amount of overhead required to transmit payload data in a data packet. | 01-24-2013 |
20130040579 | CONTACT VERIFICATION SIGNALING - Certain aspects of the present disclosure provide techniques and apparatus for verification signaling, for example, in wireless communications in a television white space (TVWS) network. | 02-14-2013 |
20130044680 | MANAGING TRANSMIT POWER FOR BETTER FREQUENCY RE-USE IN TV WHITE SPACE - Certain aspects of the present disclosure provide techniques and apparatus for managing transmit power in a television white space (TVWS) network. By managing transmit power as described herein, medium re-use may be improved in such a network, and unfair usage problems may be alleviated. One example method generally includes receiving, from an apparatus, a message with an indication of a highest transmit power used by the apparatus for transmitting data frames; and determining that the apparatus is a dominant interferer based, at least in part, on the highest transmit power. Another example method generally includes receiving, from an apparatus, a control or management message with a first indication of a first transmit power used by the apparatus for transmitting data frames; and determining that the apparatus is a dominant interferer based, at least in part, on the first transmit power. | 02-21-2013 |
20130044681 | MANAGING TRANSMIT POWER FOR BETTER FREQUENCY RE-USE IN TV WHITE SPACE - Certain aspects of the present disclosure provide techniques and apparatus for managing transmit power in a television white space (TVWS) network. By managing transmit power as described herein, medium re-use may be improved in such a network, and unfair usage problems may be alleviated. One example method generally includes receiving a request message comprising an indication of a modulation and coding scheme (MCS) for transmitting data frames to be received, determining a link margin based on the MCS, and transmitting a response message with an indication of the link margin. Another example method generally includes determining a MCS for transmitting data frames and transmitting a request message comprising an indication of the MCS. | 02-21-2013 |
20130058273 | STATION-CENTRIC MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT (MU-MIMO) - Certain aspects of the present disclosure provide techniques and apparatus for using a Media Access Control (MAC) address of a station (STA) sending a direct link multi-user multiple-input multiple-output (MU-MIMO) transmission such that one or more STAs receiving the transmission may interpret a group identifier (ID) indicating a group to which the STAs belong. Using the group ID and the MAC address allows a STA to independently manage its group IDs, independent of an access point (AP) or other STAs in a Basic Service Set (BSS). | 03-07-2013 |
20130070748 | EFFICIENT GROUP ID MANAGEMENT FOR WIRELESS LOCAL AREA NETWORKS (WLANs) - Certain aspects of the present disclosure provide techniques and apparatus for efficiently managing groups of stations (STAs) receiving simultaneous transmissions in a multiuser multiple-input multiple-output (MU-MIMO) scheme. One example method generally includes; for a first apparatus in a number of groups of apparatuses, allocating a first spatial stream position for each of at least one first group in the number of the groups; and transmitting a first unicast message to the first apparatus, wherein the first unicast message comprises an indication of the allocated spatial stream position for each of the at least one first group and, for each group in the number of the groups, an indication of a membership status, in the group, of the first apparatus. | 03-21-2013 |
20130090071 | SYSTEMS AND METHODS FOR COMMUNICATION IN A WHITE SPACE - Systems, methods, and devices to communicate in a white space are described herein. In some aspects, wireless communication transmitted in the white space authorizes an initial transmission by a device. The wireless communication may include power information for determining a power at which to transmit the initial transmission. The initial transmission may be used to request information identifying one or more channels in the white space available for transmitting data. | 04-11-2013 |
20130100886 | SYSTEMS AND METHODS FOR HEADER COMPRESSION - Systems, methods, and devices for communicating packets having a plurality of types are described herein. In some aspects, the packets include a compressed header. In one embodiment, a compression protocol is selected from a plurality of compression protocols to compress a first packet header. The packet may contain a second packet header, which may include information indicative of the compression protocol used to compress the first packet header. The packet may be transmitted, including the first packet header which is compressed using the selected compression protocol. | 04-25-2013 |
20130107703 | SYSTEMS AND METHODS FOR FAST INITIAL NETWORK LINK SETUP | 05-02-2013 |
20130107738 | SYSTEMS AND METHODS FOR FAST INITIAL NETWORK LINK SETUP | 05-02-2013 |
20130107757 | SYSTEMS AND METHODS FOR FAST INITIAL NETWORK LINK SETUP | 05-02-2013 |
20130107788 | SYSTEMS AND METHODS FOR FAST INITIAL NETWORK LINK SETUP | 05-02-2013 |
20130107824 | SYSTEMS AND METHODS FOR FAST INITIAL NETWORK LINK SETUP | 05-02-2013 |
20130107825 | SYSTEMS AND METHODS FOR FAST INITIAL NETWORK LINK SETUP | 05-02-2013 |
20130107869 | WIRELESS COMMUNICATION UTILIZING MIXED PROTOCOLS | 05-02-2013 |
20130107981 | SYSTEMS AND METHODS FOR WIRELESS COMMUNICATION OF LONG DATA UNITS | 05-02-2013 |
20130111044 | SYSTEMS AND METHODS FOR FAST INITIAL NETWORK LINK SETUP | 05-02-2013 |
20130117820 | ENABLING ACCESS TO KEY LIFETIMES FOR WIRELESS LINK SETUP - A particular method includes performing a bootstrapped extensible authentication protocol (EAP) re-authentication protocol (ERP) re-authentication at a mobile device after performing an EAP authentication with the access point prior to expiration of a master session key (MSK) associated with the EAP authentication. Another particular method includes performing, at an access point, a bootstrapped ERP re-authentication of a mobile device without interrupting a flow of data packets with respect to the mobile device. | 05-09-2013 |
20130128807 | PREAMBLE DESIGN FOR TELEVISION WHITE SPACE TRANSMISSIONS - A method for generating a Physical Layer Convergence Protocol Packet Data Unit (PPDU) having a preamble and a payload for television white space transmission (TVWS) is provided. The symbols of the PPDU each include 128 total (orthogonal frequency-division multiplexing) OFDM tones or 256 total OFDM tones. The preamble includes a signal (SIG) field symbol having 108 OFDM data tones if the symbols of the PPDU include 128 total OFDM tones or having 234 OFDM data tones if the symbols of the PPDU include 256 total OFDM tones. The SIG field symbol indicates at least one of an amount of data in the payload or a length of time that the PPDU will occupy the television broadcast frequency spectrum. The PPDU is generated by down-clocking an 802.11ac signal by a factor so that the bandwidth of the PPDU decreases down to one appropriate for use in a TVWS channel. | 05-23-2013 |
20130128808 | APPARATUS AND METHODS FOR MEDIA ACCESS CONTROL HEADER COMPRESSION - Systems, methods, and devices for communicating packets having a plurality of types are described herein. In some aspects, the packets include a compressed MAC header. In some aspects the packets include an acknowledgment (ACK) frame. The fields included in a particular packet type may be based on the type of information to be communicated to the receiving device. | 05-23-2013 |
20130128809 | APPARATUS AND METHODS FOR MEDIA ACCESS CONTROL HEADER COMPRESSION - Systems, methods, and devices for communicating packets having a plurality of types are described herein. In some aspects, the packets include a compressed MAC header. In some aspects the packets include an acknowledgment (ACK) frame. The fields included in a particular packet type may be based on the type of information to be communicated to the receiving device. | 05-23-2013 |
20130142094 | SYSTEMS AND METHODS FOR FRAME FILTERING AND FOR ENABLING FRAME FILTERING - The disclosure provides systems, methods, and apparatus for early receive chain shutoff using a typified CRC and/or content change indicator signals. In one aspect, a method for low power frame filtering is provided. The method comprises generating a typified checksum based on a transaction identifier and at least a portion of a packet. The method further comprises transmitting, to at least one receiver, the packet comprising the typified checksum. | 06-06-2013 |
20130142124 | SYSTEMS AND METHODS FOR LOW-OVERHEAD WIRELESS BEACON TIMING - Systems, methods, and devices for communicating a compressed beacon are described herein. In some aspects, a method of communicating in a wireless network includes transmitting, at an access point, a full beacon at a first multiple of a beacon interval. The method further includes transmitting a compressed beacon at each beacon interval that is not the first multiple of the beacon interval. Another method of communicating in a wireless network includes receiving, at a wireless device, a full beacon at a first multiple of a beacon interval. The method further includes receiving a compressed beacon at a beacon interval that is not the first multiple of the beacon interval. | 06-06-2013 |
20130148517 | MANAGING TRANSMIT POWER FOR BETTER FREQUENCY RE-USE IN TV WHITE SPACE - Certain aspects of the present disclosure provide techniques and apparatus for managing transmit power in a television white space (TVWS) network. One example method generally includes transmitting a sequence of request-to-send (RTS) messages at different transmit power levels to an apparatus and determining if a clear-to-send (CTS) message was received in response to at least one of the RTS messages corresponding to a particular one of the transmit power levels. Another example method generally includes receiving, at a first apparatus from a second apparatus, a packet that cannot be decoded by the first apparatus; determining at least one of a time or a duration corresponding to the packet; transmitting a query with an indication of the at least one of the time or the duration; and receiving a message from the second apparatus in response to the query, the message identifying the second apparatus as a source of the packet. | 06-13-2013 |
20130148557 | METHOD AND APPARATUS FOR ENHANCED DISCOVERY IN PEER-TO-PEER NETWORKS BY SYNCHRONIZED DISCOVERY WAKE UP - Certain aspects of the present disclosure relate to a technique for enhanced discovery in peer-to-peer (P2P) wireless network by synchronized discovery wake up. A wireless node can first obtain information about one or more time instants. Then, the wireless node can wake up to discover one or more other wireless nodes for communication, wherein the wake up occurs at the one or more time instants synchronized with the one or more other wireless nodes. The one or more time instants can be updated according to location information of the wireless node. | 06-13-2013 |
20130148642 | ENHANCED DISCOVERY PROCEDURES IN PEER-TO-PEER WIRELESS LOCAL AREA NETWORKS (WLANS) - Certain aspects of the present disclosure generally provide methods and apparatus for enhanced discovery procedures in peer-to-peer (P2P) wireless local area networks (WLANs). With these procedures, discovery duration may be decreased, battery power consumption may be reduced during discovery, provided services may be ascertained during the device discovery phase without performing a separate service discovery phase, and/or the discovery range may be extended in an effort to discover a greater number of devices. | 06-13-2013 |
20130148643 | ENHANCED DISCOVERY PROCEDURES IN PEER-TO-PEER WIRELESS LOCAL AREA NETWORKS (WLANS) - Certain aspects of the present disclosure generally provide methods and apparatus for enhanced discovery procedures in peer-to-peer (P2P) wireless local area networks (WLANs). With these procedures, discovery duration may be decreased, battery power consumption may be reduced during discovery, provided services may be ascertained during the device discovery phase without performing a separate service discovery phase, and/or the discovery range may be extended in an effort to discover a greater number of devices. | 06-13-2013 |
20130155900 | SYSTEMS AND METHODS FOR TRANSMITTING AND RECEIVING DISCOVERY AND PAGING MESSAGES - Methods, devices, and computer program products for transmitting and receiving discovery and paging messages are described herein. In one aspect, an apparatus operable in a wireless communication system includes a transmitter and receiver. The transmitter transmits a discovery packet during a first discovery interval of a plurality of discovery intervals. The discovery packet advertises a service provided in a wireless communications network, and the plurality of discovery intervals include recurring time intervals when a plurality of devices are configured to transmit and receive discovery packets. The receiver receives a paging packet from a first device during a first paging interval of a plurality of paging intervals. The paging packet indicates interest in the service, and the plurality of paging intervals include recurring time intervals when the plurality of devices are configured to transmit and receive paging packets. The plurality of paging intervals do not overlap the plurality of discovery intervals. | 06-20-2013 |
20130155905 | SYSTEMS AND METHODS FOR TRANSMITTING AND RECEIVING DISCOVERY AND PAGING MESSAGES - Methods, devices, and computer program products for transmitting and receiving discovery and paging messages are described herein. In one aspect, an apparatus operable in a wireless communication system includes a receiver and transmitter. The receiver receives a registration packet from a first device. The registration packet indicates interest in a service provided by another device in a wireless communications network. The receiver further receives a discovery packet from a second device during a first discovery interval of a plurality of discovery intervals. The discovery packet advertises a service provided by the second device, and the plurality of discovery intervals include recurring time intervals when a plurality of devices are configured to transmit and receive discovery packets in the wireless communications network. The transmitter transmits a notification packet configured to enable the first device and the second device to communicate directly. | 06-20-2013 |
20130170345 | SYSTEMS AND METHODS FOR GENERATING AND DECODING SHORT CONTROL FRAMES IN WIRELESS COMMUNICATIONS - Systems, methods, and devices for communicating short control frames are described herein. In some aspects, a method of wireless communication includes generating a control frame comprising a physical layer preamble having a signal field, the signal field including an indicator indicating the control frame is a control frame type of frame. The method further includes transmitting the control frame. | 07-04-2013 |
20130170411 | SIGNAL UNIT INCLUDING A FIELD INDICATIVE OF A ZERO-LENGTH PAYLOAD - A method includes receiving, at a first wireless device from a second wireless device, a signal (SIG) unit including a first field. The method also includes determining whether the first field has a particular value that is indicative of a zero-length payload and decoding the SIG unit based at least in part on the determination. | 07-04-2013 |
20130176902 | SYSTEM AND METHOD OF COMMUNICATION USING DISTRIBUTED CHANNEL ACCESS PARAMETERS - A device includes a processor and a memory accessible by the processor. The memory includes access category data specifying one or more access categories. The one or more access categories include a sensor access category specifying distributed channel access parameters to be used by one or more station devices to wirelessly communicate sensor data via a network. The memory further includes instructions executable by the processor to send at least a portion of the access category data to a station device to enable the station device to communicate sensor data. | 07-11-2013 |
20130176922 | SYSTEMS AND METHODS FOR LOW-OVERHEAD WIRELESS BEACONS HAVING NEXT FULL BEACON INDICATIONS - Systems, methods, and devices for communicating a compressed beacon are described herein. In some aspects, a method of communicating in a wireless network. includes generating a compressed beacon. The compressed beacon includes a next full beacon time indication (NFBTI). The method further includes transmitting, at an access point, the compressed beacon. | 07-11-2013 |
20130177000 | SYSTEMS AND METHODS FOR LOW-OVERHEAD WIRELESS BEACONS HAVING COMPRESSED NETWORK IDENTIFIERS - Systems, methods, and devices for communicating a compressed beacon are described herein. In some aspects, a method of communicating in a wireless network. includes creating a shortened network identifier having a first length from a full network identifier having a second length. The first length is shorter than the second length. The method further includes generating a compressed beacon including the shortened network identifier. The method further includes transmitting, at an access point, the compressed beacon. | 07-11-2013 |
20130177001 | SYSTEMS AND METHODS FOR LOW-OVERHEAD WIRELESS BEACON TIMING - Systems, methods, and devices for communicating a compressed beacon are described herein. In some aspects, a method of communicating in a wireless network includes transmitting, at an access point, a full beacon at a first multiple of a beacon interval. The method further includes transmitting a compressed beacon at each beacon interval that is not the first multiple of the beacon interval. Another method of communicating in a wireless network includes receiving, at a wireless device, a full beacon at a first multiple of a beacon interval. The method further includes receiving a compressed beacon at a beacon interval that is not the first multiple of the beacon interval. | 07-11-2013 |
20130182795 | SYSTEMS AND METHODS FOR PEER-TO-PEER COMMUNICATION - Methods, devices, and computer program products for peer-to-peer communication are described herein. In one aspect, an apparatus includes a receiver and processor. The receiver is configured to receive a first data unit from a first device. The first data unit includes a Media Access Control (MAC) address of the first device and data. The processor is configured to generate a device address of the processor and a device address of the first device, and provide the generated device address of the processor, the generated device address of the first device, and the data of the first data unit to an application executable on the processor. | 07-18-2013 |
20130183905 | METHOD AND APPARATUS FOR SYNCHRONIZING A WIRELESS NETWORK WITH AN EXTERNAL TIMING SOURCE - A communications device synchronizes itself with respect to an external reference signal, e.g., a GPS signal. The communications device detects timing reference signals, e.g., beacon signals, from a communications network. If the communications device determines that the network is not synchronized to the external timing reference signal, the communications device operates as a master timing control device. In various embodiments, when operating as a master timing control device the wireless communications device communicates time stamps, e.g., in beacon signals, which indicate a greater passage of time than the actual passage of time. When operating as a master timing control device the communications device transmits network timing reference signals at a higher rate than is being used by the network to seize control of network timing and become the master timing control device. The communications device drives the network timing to synchronize network timing to the external timing reference. | 07-18-2013 |
20130183906 | ENHANCED DISTRIBUTED SYNCHRONIZATION FOR WIRELESS COMMUNICATIONS - Methods and apparatus are described which increase the probability and/or frequency that devices with comparatively faster clocks in a network than other devices in the network will transmit beacon signals are described. As a result, devices with faster clocks will tend to drive system synchronization to convergence faster than if all devices transmitted beacons at the same rate, thus facilitating more reliable maintenance of system synchronization since the devices with faster clocks will tend to transmit more frequently. | 07-18-2013 |
20130184030 | METHODS AND APPARATUS FOR GENERATING AND/OR USING A SIGNAL SUPPRESSION UTILITY METRIC - Methods and apparatus are described for efficiently suppressing transmission of signals from devices which are using a first protocol, in order to allow the frequency spectrum being used by devices using the first protocol to be used briefly for communication between devices using an alternative communications protocol. In some embodiments, the first protocol is WiFi and the alternative signaling protocol is a non-WiFi peer to peer communications protocol. A wireless communications device, e.g., a peer to peer wireless communications device, generates a signal suppression utility metric (SSUM). The signal suppression utility metric provides an indication of how useful transmitting a transmission suppression signal, e.g., a S-CTS signal which may be a CTS to self signal, will be at a given point in time. The wireless communications device decides whether or not to transmit a transmission suppression signal as a function of the signal suppression utility metric. | 07-18-2013 |
20130188542 | SYSTEMS AND METHODS OF RELAY SELECTION AND SETUP - A particular method includes receiving, at an access point, one or more request messages from one or more relay nodes, each of the one or more request messages is a probe request message or an association request message related to a station. The method includes selecting a communication path between the access point and the station based on the one or more request messages and sending a response message indicating the selected communication path. | 07-25-2013 |
20130194962 | METHODS AND APPARATUSES FOR DEVICE DISCOVERY - An information providing method is performable in a wireless network having a plurality of group owner devices respectively controlling a plurality of groups of devices. The information providing method includes periodically transmitting, by a first group owner device that controls a first group of devices, a first packet that includes device descriptors of client devices associated with the first group owner device. The information providing method further includes receiving, by a second group owner device that controls a second group of devices and that is adjacently located with respect to the first group owner device, the first packet transmitted by the first group owner device. The information providing method also includes periodically transmitting, by the second group owner device, a second packet that includes the device descriptors of the client devices associated with the first group owner device. | 08-01-2013 |
20130195036 | SYSTEMS AND METHODS FOR NARROWBAND CHANNEL SELECTION - Systems, methods, and devices for narrowband channel selection in a wireless communications network are described herein. In one aspect, a wireless communications device includes a receiver, processor, and transmitter. The receiver is configured to wirelessly receive messages from a first device over a plurality of channels. The processor is configured to estimate a quality of each channel based on one message received from the first device over each channel, select for wireless communication a first channel of the plurality of channels based on the estimated quality of each channel, and prepare a selection message indicating selection of the first channel for wireless communication. The transmitter is configured to transmit the selection message to the first device. | 08-01-2013 |
20130201974 | SYSTEMS AND METHODS FOR REDUCING COLLISIONS AFTER TRAFFIC INDICATION MAP PAGING - Systems, methods, and devices for reducing collisions in a wireless communications network are described herein. In some aspects, a processor is configured to decrementing a value of a counter if a channel of a wireless communications network is idle for at least an extended slot time. The processor may be further configured to generate a polling request and allow the transmission of the polling request to an access point over the wireless communications network when the value of the counter reaches a threshold value. | 08-08-2013 |
20130208607 | METHOD AND APPARATUS FOR COMMUNICATING WITH EXTENDED RANGE IN A WIRELESS NETWORK - Techniques for supporting communication over an extended range in a wireless network are disclosed. In one aspect, a station sends multiple messages of a given type for different operating modes. These messages can be detected by stations with different capabilities, which may avoid collisions between stations. In one design, a first station receives a Request-to-Send (RTS) message from a second station having data to send. The first station sends a first Clear-to-Send (CTS) message and also a second CTS message in response to the RTS message. The second CTS message has an extended range as compared to the first CTS message. The first station thereafter (i) receives data sent by the second station in response to the second CTS message and (ii) sends an acknowledgement having an extended range. | 08-15-2013 |
20130208637 | SYSTEMS AND METHODS FOR ACCESS POINT TRIGGERED TRANSMISSIONS AFTER TRAFFIC INDICATION MAP PAGING - Systems, methods, and devices for reducing collisions in a wireless communications network are described herein. In one aspect an apparatus for wireless communication is provided. The apparatus includes a transmitter configured to transmit a first message over a communication medium to a plurality of nodes configured to be selectively at least partially powered down during time periods in which the first message is not expected to be transmitted. The first message indicates a subset of the plurality of nodes for which data is available for transmission. The apparatus further includes a controller configured to initiate a process for transmitting the data available to the subset of the plurality of nodes after the first message is transmitted. | 08-15-2013 |
20130208667 | DEVICES FOR REDUCED OVERHEAD PAGING - A method for reduced overhead paging by an access point is described. The method includes assigning at least one paging identifier to at least one station. The method also includes partitioning a paging identifier space into paging identifier sets. The method further includes generating a paging message based on at least one of the paging identifier sets and the at least one paging identifier. The method additionally includes sending the paging message. | 08-15-2013 |
20130215836 | SYSTEMS AND METHODS FOR COMPRESSING HEADERS - A method includes assigning a flow identifier to a flow that includes a plurality of packets. The method also includes generating a head packet of the plurality of packets. The head packet includes one or more header information fields that are associated with the flow identifier. The method further includes generating at least one data packet of the plurality of packets. The at least one data packet includes packet specific information and the flow identifier instead of the one or more header information fields. The method further includes transmitting the head packet. The method further includes, in response to detecting a successful receipt of the head packet, transmitting the at least one data packet. | 08-22-2013 |
20130217359 | AUTOMATIC CONFIGURATION OF A WIRELESS DEVICE - A method of automatically configuring a wireless device includes receiving programming credentials from a server at a programming module and authenticating the wireless device based on the programming credentials. The method includes programming the wireless device with access credentials of an access point of a network to enable the wireless device to communicate, via the access point, with one or more devices outside of the network. | 08-22-2013 |
20130223210 | APPARATUS AND METHODS FOR BLOCK ACKNOWLEDGMENT COMPRESSION - Systems, methods, and devices for compressing block acknowledgment (ACK) frames/packets are described herein. In some aspects, a method of communicating in a wireless network includes generating a compressed block acknowledgment frame comprising one or more local addresses. The method further includes transmitting the compressed block acknowledgment frame. | 08-29-2013 |
20130223211 | APPARATUS AND METHODS FOR BLOCK ACKNOWLEDGMENT COMPRESSION - Systems, methods, and devices for compressing block acknowledgment (ACK) frames/packets are described herein. In some aspects, a method of communicating in a wireless network includes generating a compressed block acknowledgment frame including one or more of the following fields in a physical layer header: duration, receiver address, transmitter address, block acknowledgment control, block acknowledgment policy, compressed bitmap, compression control, starting sequence number. The method further includes transmitting the compressed block acknowledgment frame. | 08-29-2013 |
20130223212 | APPARATUS AND METHODS FOR BLOCK ACKNOWLEDGMENT COMPRESSION - Systems, methods, and devices for compressing block acknowledgment (ACK) frames/packets are described herein. In some aspects, a method of communicating in a wireless network includes generating a compressed block acknowledgment frame comprising a physical layer header, the physical layer header including at least one of the following: a block acknowledgment identifier, a starting sequence number of the compressed block acknowledgement frame, and a bitmap. The method further includes transmitting the compressed block acknowledgment frame. | 08-29-2013 |
20130223213 | APPARATUS AND METHODS FOR BLOCK ACKNOWLEDGMENT COMPRESSION - Systems, methods, and devices for compressing block acknowledgment (ACK) frames/packets are described herein. In some aspects, a method of communicating in a wireless network includes a compressed block acknowledgment frame including a bitmap, the bitmap indicating receipt of a plurality of fragments of a single data unit. The method further includes transmitting the compressed block acknowledgment frame. | 08-29-2013 |
20130223338 | APPARATUS AND METHODS FOR BLOCK ACKNOWLEDGMENT COMPRESSION - Systems, methods, and devices for compressing block acknowledgment (ACK) frames/packets are described herein. In some aspects, a method of compressing a block acknowledgment frame includes generating an offset value and a portion of a bitmap, the offset value indicating a location where the portion of the bitmap is located in the bitmap. The method further includes transmitting the offset value and the portion of the bitmap in a compressed block acknowledgment frame. | 08-29-2013 |
20130223345 | APPARATUS AND METHODS FOR BLOCK ACKNOWLEDGMENT COMPRESSION - Systems, methods, and devices for compressing block acknowledgment (ACK) frames/packets are described herein. In some aspects, a method of communicating in a wireless network includes generating a block acknowledgment frame comprising a plurality of fields in the following order: a block acknowledgment identifier field including an identifier of the block acknowledgment frame; a starting sequence control field including at least one of a sequence number and a function of a sequence number of a data unit for which the block acknowledgement frame is sent; and a block acknowledgement bitmap field indicating a received status of a number of data units. The method further includes wirelessly transmitting the block acknowledgment frame. | 08-29-2013 |
20130223357 | GENERATING A SEARCH SET OF TELEVISION WHITE SPACE CHANNELS BASED ON LOCATION INFORMATION - A method includes determining, at an electronic device, information associated with a location of the first electronic device. An initial set of television white space channels is filtered based on the information to generate a search set of television white space channels. A passive scan of the search set of television white space channels is performed at the electronic device to identify a television white space access point. | 08-29-2013 |
20130223382 | METHOD AND APPARATUS FOR MANAGING CLIENT INITIATED TRANSMISSIONS IN MULTIPLE-USER COMMUNICATION SCHEMES - A method for wireless communications is disclosed that includes receiving a plurality of requests to transmit data from a plurality of apparatuses; determining resource allocation for a set of apparatuses in the plurality of apparatuses, wherein the determination is based on the plurality of requests; and transmitting a message comprising the resource allocation to the set of apparatuses to permit data transmission. Another method for wireless communications is disclosed that includes contending for access to a medium based on a request, by an apparatus, with a plurality of other apparatuses; receiving a message, the message comprising a resource allocation based on requests from the apparatus and the other apparatuses, wherein the resource allocation permits data transmission from the apparatus and some of the other apparatuses; and transmitting data by the apparatus based on the message. Apparatuses for performing the methods are also disclosed. | 08-29-2013 |
20130223422 | SYSTEMS AND METHODS FOR OPTIMIZING WIRELESS TRANSMISSION DATA RATES - One aspect of the disclosure provides a method for wireless communication. The method includes sending a modulation and coding scheme request to an access point. The modulation and coding scheme request is sent using a first physical layer preamble frame. The modulation and coding scheme request includes an identifier associated with the access point. The method further includes receiving at a station a modulation and coding scheme feedback response from the access point in response to sending the modulation and coding scheme request. The modulation and coding scheme feedback response is received as a second physical layer preamble frame. In addition, the method includes determining a modulation and coding scheme based on the modulation and coding scheme feedback response. Moreover, the method includes transmitting data to the access point using the identified modulation and coding scheme. | 08-29-2013 |
20130229963 | SYSTEMS AND METHODS FOR REDUCING COLLISIONS AFTER TRAFFIC INDICATION MAP PAGING - Systems, methods, and devices for reducing collisions in a wireless communications network are described herein. In some aspects, a receiver receives a paging message. The paging message includes an ordering and a multiplier. A processor determines a first wake-up time based on the ordering and the multiplier. The wireless device wakes up at the determined wake-up time. The wireless device receives data via the receiver. | 09-05-2013 |
20130230059 | FRAGMENTATION FOR LONG PACKETS IN A LOW-SPEED WIRELESS NETWORK - A method includes creating a plurality of data fragments from a single data unit. The method also includes transmitting the plurality of data fragments to a receiver and receiving an acknowledgement from the receiver after transmitting a last data fragment of the plurality of data fragments. The method further includes selectively interpreting the acknowledgement as a multi-fragment acknowledgement (MFA) in response to a value of a fragment sequence number (FGSN) of the last data fragment. The MFA indicates receipt or non-receipt by the receiver of each of the plurality of data fragments of the single data unit. | 09-05-2013 |
20130235737 | DEFERRAL MECHANISM FOR IMPROVED MEDIUM REUSE IN WIRELESS NETWORKS WITH TRANSMIT POWER IMBALANCES - The deferral mechanism described herein may improve medium reuse in a wireless network with transmit power imbalances. For example, in one embodiment, an apparatus employing the deferral mechanism described herein may comprise a receiver to sense a data unit transmitted on a medium associated with the wireless network, wherein the data unit may comprise information indicating a transmit power associated therewith. Furthermore, the apparatus may comprise one or more processors to initiate a transmission on the medium associated with the wireless network if the apparatus is not an intended receiver of the sensed data unit, the transmit power associated with the data unit exceeds a transmit power associated with the apparatus, and a received power associated with the data unit does not equal or exceed a clear channel assessment threshold plus a difference between the transmit power associated with the data unit and the transmit power associated with the apparatus. | 09-12-2013 |
20130235770 | SYSTEMS AND METHODS FOR LOW POWER MEDIUM ACCESS - One aspect of the disclosure provides a method for wireless communication by a station or wireless device. The method includes waking from a sleep state. Further, the method includes determining an availability of a transmission medium. In addition, in response to determining that the transmission medium is not available, the method can include determining a sleep time period, entering a second sleep state based on the sleep time period, and freezing a backoff counter for the duration of the second sleep state. | 09-12-2013 |
20130235781 | SYSTEMS AND METHODS FOR ACKNOWLEDGING COMMUNICATIONS FROM A PLURALITY OF DEVICES - Systems, methods, and devices for acknowledging communications from a plurality of wireless devices in a wireless network are described herein. In some embodiments, an access point for the wireless network transmits a group acknowledgment (ACK) to indicate whether communications (packets) from the plurality of wireless devices have been received or correctly decoded within some time interval. Each wireless device may have a different time interval associated with it. For some embodiments, the time interval for a wireless device is relative to when a previous group ACK was sent. A group ACK may include a bitmap. In some embodiments, the bitmap indicating whether a communication has been received or correctly decoded may be transmitted as part of a beacon. | 09-12-2013 |
20130235788 | SYSTEMS AND METHODS FOR ESTABLISHING A CONNECTION SETUP THROUGH RELAYS - Systems, methods, and devices for communicating data in a wireless communications network are described herein. In some aspects, an access point is configured to receive a request for relay connection and to transmit a message to at least one relay based on the received request for relay connection. The message comprises an instruction to transmit a setup response frame. A station is configured to transmit the request for relay connection to the access point and to select one of the at least one relay based on at least one setup response frame received from at least one of the at least one relay. The selected one of the at least one relay is configured to relay data packets between the station and the access point. | 09-12-2013 |
20130235789 | SYSTEMS AND METHODS FOR ESTABLISHING A CONNECTION SETUP THROUGH RELAYS - Systems, methods, and devices for registering a relay in a wireless communications network are described herein. In some aspects, a device is configured to operate as a relay and to transmit an association message. The association message comprises capabilities of the device and an indication of whether the device relays uplink traffic, downlink traffic, or both. An access point is configured to receive the association message to associate the device with the access point based on the association message and to transmit a beacon message to a station. The beacon message comprises an indication of whether the access point is associated with a relay. | 09-12-2013 |
20130235790 | SYSTEMS AND METHODS FOR ESTABLISHING A CONNECTION SETUP THROUGH RELAYS - Systems, methods, and devices for communicating data in a wireless communications network are described herein. In some aspects, a receiver of a relay is configured to receive a relay initiator frame and a data frame. A transmitter of the relay is configured to transmit an amplified version of the data frame at a same or substantially same time as a time that the data frame is received if the relay initiator frame is received prior to the data frame. | 09-12-2013 |
20130235791 | SYSTEMS AND METHODS FOR ESTABLISHING A CONNECTION SETUP THROUGH RELAYS - Systems, methods, and devices for setting up a relay in a wireless communications network are described herein. In some aspects, a transmitter of a station is configured to transmit a relay request to an access point. The access point is configured to transmit a discovery request frame based on the relay request to at least one relay. Each of the at least one relay is configured to transmit a discovery message based on the discovery request frame to the station. A processor of the station is configured to select one relay of the at least one relay based on each received discovery message. The transmitter is further configured to transmit a message comprising an identification of the selected one relay of the at least one relay to the access point. | 09-12-2013 |
20130235792 | SYSTEMS AND METHODS FOR ESTABLISHING A CONNECTION SETUP THROUGH RELAYS - Systems, methods, and devices for securely communicating data are described herein. In some aspects, a station is configured to communicate with an access point. A relay includes an uncontrolled port and a controlled port. The relay is configured to forward association, authentication, and secure relay setup frames between the station and the access point through the uncontrolled port. The relay is configured to forward data packets between the station and the access point through the uncontrolled port once the station establishes a relay relationship with the relay. | 09-12-2013 |
20130235860 | DUAL INTERPRETATION OF A LENGTH FIELD OF A SIGNAL UNIT - A method includes receiving, at a first wireless device from a second wireless device, a signal (SIG) unit including a length field and an aggregation field. The length field is interpreted as a number of symbols in response to determining that the aggregation field has a first value. The length field is interpreted as a number of bytes in response to determining that the aggregation field has a second value. | 09-12-2013 |
20130242875 | METHOD AND APPARATUS TO PERFORM RANGING OPERATIONS FOR WIRELESS STATIONS - Certain embodiments provide methods and apparatus for adjusting timing in an SDMA system. One method for adjusting the timing of packet transmissions in a wireless communications system, that may be performed by an access point, includes receiving ranging signals from a plurality of wireless network nodes, determining timing adjustment information for adjusting starting timing of packet transmissions from the wireless network nodes based on the ranging signals, and communicating the timing adjustment information to the wireless network nodes. | 09-19-2013 |
20130247150 | WIRELESS COMMUNICATION USING CONCURRENT RE-AUTHENTICATION AND CONNECTION SETUP - A method includes generating at least one of a re-authorization request or a re-authentication with an extensible authentication protocol. The method also includes generating an upper layer message. The method further includes bundling the upper layer message and the least one of the re-authorization request or the re-authentication request as an association request. The method further includes transmitting the association request to an access point. | 09-19-2013 |
20130250931 | LIMITING WIRELESS DISCOVERY RANGE - Systems and methods of limiting wireless discovery range are described. A transmitting device may limit wireless discovery range by adjusting one or more transmission attributes of a discovery message, measuring inter-device distance based on range determination messages, or any combination thereof. A receiving device may limit wireless discovery range based on one or more attributes of a received discovery message, measuring inter-device distance based on range determination messages, or any combination thereof. Discovery messages may include a range adaptation bit indicating whether range adaptation is to be performed. | 09-26-2013 |
20130263223 | SYSTEMS AND METHODS OF PERFORMING LINK SETUP AND AUTHENTICATION - Systems and methods of performing link setup and authentication are disclosed. A first method utilizes an unprotected association request and an association response that includes an access point nonce (ANonce). A second method includes receiving, during a first link setup using a first ANonce, a second ANonce for use in a second link setup. A third method utilizes a temporary key to protect an association request. A fourth method includes generating an ANonce at a mobile device based on an ANonce-seed received from an access point. | 10-03-2013 |
20130265906 | DEVICES AND METHODS FOR BEACON COMMUNICATION IN AD-HOC NETWORKS - A method includes receiving discovery messages from respective devices of an ad-hoc wireless network. The messages are received by a first device in the ad-hoc wireless network prior to a particular discovery interval. The discovery messages include information identifying the respective devices. The method further includes caching the information identifying the respective devices. During the particular discovery interval, a first discovery message is sent. The first discovery message includes a request to reserve a paging interval during the particular discovery interval. The first discovery message further includes an indication of the information. | 10-10-2013 |
20130268654 | DEVICES AND METHODS FOR COMMUNICATION IN AD-HOC NETWORKS - In a particular embodiment, a method includes determining, by a first device, a number of discovery messages received during at least one discovery interval. Based on the number of discovery messages, an estimated number of devices in an ad-hoc network is determined The method further includes transmitting, during a second discovery interval that is subsequent to the at least one discovery interval, a discovery message. The discovery message indicates the estimated number of devices in the ad-hoc network. | 10-10-2013 |
20130272211 | SCHEDULING ALGORITHMS FOR IEEE 802.11 MULTI-USER (MU) MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO) COMMUNICATION SYSTEMS - A method is provided for wirelessly transmitting from a transmitter to one or more receivers within a multi-user (MU) multiple-input and multiple-output (MIMO) communication system. A number of concurrent (spatial) streams are dynamically allocated in a MU-MIMO transmission to each of a plurality of served receivers to maximize total data transmitted on each transmission. Streams are allocated according to a corresponding transmission queue length for each receiver and the number of receive antennas used by each of the served receivers. A transmission timer is started upon sending the transmission. A random backoff counter is also started upon one of either: (a) expiration of the transmission timer or (b) receipt of data at a transmission queue. A new transmission is sent upon expiration of the random backoff counter if the transmission timer has expired. Otherwise, the random backoff counter is restarted one or more times until the transmission timer has expired. | 10-17-2013 |
20130279379 | SYSTEMS AND METHODS FOR WIRELESS COMMUNICATION OF LONG DATA UNITS - Systems and methods for communicating the length of a data unit and determining control data based thereon are described herein. In some aspects, a processor and a transmitter are provided. The processor may be configured to determine a measurement unit for representing the length of a data unit, the data unit including a midamble, the measurement unit being at least one of bytes or symbols. The processor may further generate a value indicating the length of the data unit based at least in part on the unit, an encoding scheme associated with the data unit, and a guard interval associated with the data unit. The generated value may be included in the data unit. The transmitter may be configured to transmit via wireless network the data unit to one or more devices. | 10-24-2013 |
20130279381 | BEACONS FOR WIRELESS COMMUNICATION - A system and method for wireless devices to efficiently receive communications by transmitting and receiving specialized beacon messages. Particularly, a wireless device may await reception of a synchronizing beacon message from a transmitting device. A relative position identifier within the synchronizing beacon message may then allow the wireless device to anticipate future beacon message transmissions and to synchronize its reception pattern with the transmitter. In this manner the wireless device need only receive and decode beacon messages germane to its operation. | 10-24-2013 |
20130279426 | SYSTEM AND METHOD OF COMMUNICATION USING DISTRIBUTED CHANNEL ACCESS PARAMETERS - A method includes, in response to receiving a delta value of an enhanced distributed channel access (EDCA) parameter at a station, determining a value of the EDCA parameter based on the delta value and based on a base value of the EDCA parameter. The method also includes, in response to receiving an EDCA parameter set information element (IE), determining the value of the EDCA parameter based on the EDCA parameter set IE. The method further includes, in response to no delta value or EDCA parameter set IE being received at the station during a time period, setting the value of the EDCA parameter to a default value of the EDCA parameter. | 10-24-2013 |
20130279427 | SYSTEM AND METHOD OF COMMUNICATION USING DISTRIBUTED CHANNEL ACCESS PARAMETERS - A method includes in response to receiving a modified enhanced distributed channel access (EDCA) parameter set IE at a station, determining a value of an EDCA parameter based on a delta value in the modified EDCA parameter set IE and based on a base value of the EDCA parameter. | 10-24-2013 |
20130281056 | SYSTEM AND METHOD OF SERVICE DISCOVERY - A particular method includes generating, at a mobile station, a probe request frame and a service discovery request. At least a first portion of the service discovery request may be encapsulated within the probe request frame to form a modified probe request frame. The modified probe request frame may be wirelessly transmitted, for example, to a particular access point or to all access points with range of the mobile station. | 10-24-2013 |
20130286889 | USING A MOBILE DEVICE TO ENABLE ANOTHER DEVICE TO CONNECT TO A WIRELESS NETWORK - A method includes, at a first device while the first device is connected to a wireless local area network (WLAN) and a second device is unconnected to the WLAN, establishing a secure channel to the second device using an EAP exchange. The method also includes sending at least one credential associated with the WLAN to the second device via the secure channel to enable the second device to connect to the WLAN. | 10-31-2013 |
20130301523 | APPARATUS AND METHODS FOR CONTROL FRAME AND MANAGEMENT FRAME COMPRESSION - Systems, methods, and devices for communicating frames having a plurality of types are described herein. In some aspects, the frames include a compressed frame, such as a compressed management frame or a compressed control frame. In some aspects, a method of communicating in a wireless network includes generating a management frame including a local identifier or a global identifier for a transmitter of the management frame based on a link type over which the management frame is transmitted, a local identifier or a global identifier for a recipient of the management frame based on the link type, a frame check sequence, and information indicating the link type. The method further includes transmitting the management frame. | 11-14-2013 |
20130303202 | SYSTEMS AND METHODS FOR PAGING MESSAGE ENHANCEMENT - This disclosure describes systems, methods, and devices for paging message enhancement, for example, by allowing packets to accumulate in an access point before sending them to a station. In some implementations, a station may not have an immediate use for a packet waiting in an access point's buffer. The station may save energy and reduce medium occupancy by allowing packets to accumulate at the access point and then receiving the accumulated packets in accordance with certain criteria. Such criteria for accumulation may be based on a Quality of Service (QoS) category, the station address, or the station type. The station may set accumulation parameters, such as a maximum occupied buffer size or a maximum time for which a station's packets are delayed for accumulation. | 11-14-2013 |
20130304887 | SYSTEMS AND METHODS FOR DOMAIN NAME SYSTEM QUERYING - Systems and methods for reducing latency associated with establishing communication with a server utilizing a wireless communication system are described. One aspect enhances domain name system querying. For example, an electronic device may transmit a request for server to a service providing device. Prior to one of IP address assignment, authentication of the electronic device, or association of a link-layer with the electronic device, a request for domain name resolution for a server may be transmitted to the service providing device. A response is received by the electronic device indicating the network service provided, with the request for domain name resolution being transmitted prior to receiving the response. In one aspect, the request for domain name resolution is performed as part of the request for network service transmitted from the electronic device to the service providing device. | 11-14-2013 |
20130315139 | METHODS, DEVICES, AND SYSTEMS FOR EFFICIENT RETRANSMISSION COMMUNICATIONS - Methods, devices, and systems for retransmitting Media Access Control (MAC) protocol data units (MPDUs) in a multi-user multiple-input and multiple-output (MU-MIMO) communication system are disclosed. Concurrent data streams within a first transmission window are transmitted. Each concurrent data stream is associated with a different recipient and includes an equal number of MPDUs. An indication of a retransmission subset of the MPDUs to be retransmitted for each concurrent data stream may be obtained if errors are present. The retransmission subset for each concurrent data stream is retransmitted within a second transmission window. A length of the second transmission window is as long as the longest of the retransmission subsets of the concurrent data streams. One or more new MPDUs may be added to the concurrent data streams in the second transmission window so that each concurrent data stream in the second transmission window carries a same number of MPDUs. | 11-28-2013 |
20130336182 | SYSTEMS AND METHODS FOR IDENTIFYING ENHANCED FRAMES FOR WIRELESS COMMUNICATION - Systems, methods, and devices for wireless communication. In one aspect, a method for communicating in a wireless network is provided. The method includes generating a media access control frame including a header. The header includes a type field having a type value and a retry field having a retry value. A type of the media access control frame is indicated by both the type value and the retry value. The method further includes transmitting the media access control frame. | 12-19-2013 |
20130336196 | SYSTEMS AND METHODS FOR SIMPLIFIED STORE AND FORWARD RELAYS - Systems, methods, and devices for communicating data in a wireless communications network are described herein. In some aspects, a relay provides relay services for network communication between a first station and a second station. In one aspect, the relay may receive data packets sent to the second station by the first station, and retransmit the data packets if it determines that the second station has not acknowledged the data packet. In one other aspect, the first station may be configured to transmit a relay-able acknowledgement that includes a sequence number identifying data being acknowledged. The relay may be configured to receive a transmission of a first relay-able acknowledgement by the first station and retransmit a second relay-able acknowledgement if it determines the second station did not receive the first relay-able acknowledgement sent by the first station. In some aspects, the second station is an access point. | 12-19-2013 |
20130336240 | METHOD AND APPARATUS FOR WLAN INITIAL LINK SETUP - In a particular embodiment, a method includes scanning, by a mobile device, for a first wireless communication channel that is reserved for device authentication and association. The mobile device sends an authentication request to an access point via the first wireless communication channel. The method further includes receiving a reply to the authentication request from the access point. | 12-19-2013 |
20130336287 | SYSTEMS AND METHODS FOR ENHANCED NETWORK HANDOFF TO WIRELESS LOCAL AREA NETWORKS - Embodiments relate to systems and methods for an enhanced network handoff to wireless local area networks. A network element, referred to as a network handoff gateway (WHG), can be introduced between a wireless wide area network (WWAN) and a local wireless area network (WLAN). The WHG can maintain c links with both a set of WiFi™ or similar access points local to a wireless device, as well as a cellular network (or other WWAN) to which the device is registered. The wireless device can be tracked by the WHG using GPS or other data. The WHG can proactively acquire and pre-stage data needed to hand a data link of the wireless device off from the WWAN connection to the WiFi™ access points. The acquired data can include authentication information, IP address, or other information to facilitate a faster, more robust transition between the WWAN and WiFi™ or other WLAN connections. | 12-19-2013 |
20140036772 | APPARATUS AND METHODS FOR CONTROL FRAME AND MANAGEMENT FRAME COMPRESSION - Systems, methods, and devices for communicating frames having a plurality of types are described herein. In some aspects, the frames include a compressed frame, such as a compressed management frame or a compressed control frame. In some aspects, a method of communicating in a wireless network includes generating a control frame including an identifier, the identifier comprising a portion of a frame check sequence and a service field of a frame that elicited the control frame. The method further includes transmitting the control frame. | 02-06-2014 |
20140036775 | APPARATUS AND METHODS FOR FRAME CONTROL DESIGN - Systems, methods, and devices for communicating packets having a plurality of types are described herein. In some aspects, the packets include a MAC header with a frame control field. The sub-fields included in a particular frame control field may be based on the type of information to be communicated to the receiving device. | 02-06-2014 |
20140056210 | SYSTEMS AND METHODS FOR MULTI-HOP RELAY SELECTION - Systems, methods, and devices for communicating data in a wireless communications network are described herein. In some aspects, a relay is configured to receive at least one first parameter advertised by a first potential parent relay and at least one second parameter advertised by a second potential parent relay. The relay may be further configured to select the first potential parent relay or the second potential parent relay to relay one or more packets based on the at least one first parameter advertised by the first potential parent relay and the at least one second parameter advertised by the second potential parent relay. | 02-27-2014 |
20140056223 | FRAGMENTATION FOR LONG PACKETS IN A LOW-SPEED WIRELESS NETWORK - A method includes determining, at a transmitter, whether the transmitter supports multi-fragment acknowledgment (MFA) based on a parameter of the transmitter. The method also includes transmitting a first frame to a receiver. A fragment block acknowledgment (BA) support sub-field of a sub-1 gigahertz (S1G) capabilities information field of a S1G capabilities element of the first frame has a first value in response to determining that the transmitter supports MFA. The fragment BA support sub-field has a second value in response to determining that the transmitter does not support MFA. | 02-27-2014 |
20140064184 | SYSTEMS, APPARATUS, AND METHODS FOR ADDRESS FORMAT DETECTION - Systems, methods, and devices for address format detection are described herein. In one aspect, a method of detecting whether an addressing format is supported by an access point on a wireless network is disclosed. The method includes transmitting a request to an access point using an addressing format including a source address field and a separate transmitter address field. In some aspects, the request may be an address resolution protocol (ARP) request or an Internet Control Message Protocol (ICMP) ping request. The request includes the source address field set to a first address and the transmitter address field set to a second address; monitoring transmissions of the access point to determine whether the access point transmits a response to the request that includes a destination address equal to the first address; and determining whether the access point supports the addressing format based on the monitoring. | 03-06-2014 |
20140064185 | SYSTEMS AND METHODS FOR SECURELY TRANSMITTING AND RECEIVING DISCOVERY AND PAGING MESSAGES - Methods, devices, and computer program products for transmitting and receiving discovery and paging messages in a wireless communication device are described herein. In one aspect, a wireless apparatus operable in a wireless communication system comprises a transmitter configured to transmit a medium access control change request message to an access terminal to initiate a change in a medium access control address of the wireless apparatus and a receiver configured to receive a medium access control change response message from the access terminal. The wireless apparatus further comprises a processor configured to change the medium access control address of the wireless apparatus in response to receiving the medium access control change response, wherein the transmitter is configured to transmit a medium access control change confirm message to the access terminal. | 03-06-2014 |
20140064196 | LAYER 2 ADDRESS MANAGEMENT IN 3 ADDRESS ONLY CAPABLE ACCESS POINTS IN NETWORKS WITH RELAYS - During uplink traffic, a map is formed between the MAC address and an upper layer identifier of each station of a communications network. When a downlink unicast packet is received, the identifier is compared to the map to select a corresponding MAC address. The packet having the selected MAC address is delivered to the station. During uplink, the MAC address of the station generating the packet is replaced with the MAC address of the relay receiving the packet. A device receiving an uplink multicast packet is assigned a temporary MAC address which remains valid during a known period. The device replaces the MAC address of the station generating the multicast packet with the temporary MAC address to generate a new packet that is transferred up the link. A downlink packet that includes the temporary MAC address and is received during the first time period is delivered as a response packet. | 03-06-2014 |
20140064245 | SYSTEMS AND METHODS FOR DYNAMIC ASSOCIATION ORDERING BASED ON SERVICE DIFFERENTIATION IN WIRELESS LOCAL AREA NETWORKS - Embodiments relate to systems and methods for dynamic association ordering based on service differentiation in wireless local area networks. A WiFi™ or other access point can broadcast beacon information to surrounding stations, and receive probe requests from those stations seeking to associate with the access point. The access point can determine a classification for each station, depending on station attributes such as subscription status, handoff status, or others. Stations receiving a higher classification can enter the association process sooner than those with lower classifications. The association order can be managed by inserting a delay in the probe response, by broadcasting the classifications which will be processed in the next beacon interval, or by adjusting the order in which association steps will be performed. Stations having higher classifications can be associated more quickly than lower-classification stations, in contrast to conventional association techniques which handle probe requests in the order received. | 03-06-2014 |
20140064481 | SYSTEMS AND METHODS FOR SECURELY TRANSMITTING AND RECEIVING DISCOVERY AND PAGING MESSAGES - Methods, devices, and computer program products for transmitting and receiving discovery and paging messages in a wireless communication device are described herein. In one aspect, a wireless apparatus operable in a wireless communication system includes a processor configured to encrypt at least a portion of a discovery packet using one or more credentials of an application that, when executed, provides one or more services, the discovery packet including information for advertising at least one service provided by the application to one or more receiving devices. The wireless apparatus further includes a transmitter configured to transmit the discovery packet for being received by the one or more receiving devices. | 03-06-2014 |
20140064486 | SYSTEMS AND METHODS FOR SECURELY TRANSMITTING AND RECEIVING DISCOVERY AND PAGING MESSAGES - Methods, devices, and computer program products for transmitting and receiving discovery and paging messages in a wireless communication device are described herein. In one aspect, a wireless apparatus operable in a wireless communication system includes a receiver configured to receive a discovery packet from a first device, the discovery packet including a first public key and information advertising a service provided by the first device. The wireless apparatus further includes a processor configured to generate a paging request packet, the paging request packet including a second public key and information indicating interest in the service provided by the first device. The processor is further configured to generate an encryption key based at least in part on the first public key and the second public key and encrypt at least a portion of the paging request packet using the generated encryption key. The wireless apparatus further includes a transmitter configured to transmit the encrypted paging request packet including the second public key and the information indicating interest in the service to the first device. | 03-06-2014 |
20140064487 | SYSTEMS AND METHODS FOR SECURELY TRANSMITTING AND RECEIVING DISCOVERY AND PAGING MESSAGES - Methods, devices, and computer program products for transmitting and receiving discovery and paging messages in a wireless communication device are described herein. In one aspect, a wireless apparatus operable in a wireless communication system comprises a processor configured to obfuscate a medium access control address of a frame by generating a random number and a transient address obfuscation key including a first transient key, wherein the transient address obfuscation key is a function of an address obfuscation key and the random number; including the random number in an address obfuscation header field of the frame; and replacing an original first address in an address field of the frame with a new first address that is a function of the original first address and the first transient key. The processor is further configured to include an indication of the obfuscation in a first field of the frame. The wireless apparatus further comprises a transmitter configured to transmit the frame to a receiving device. | 03-06-2014 |
20140071850 | SYSTEMS, APPARATUS, AND METHODS FOR ASSOCIATION IN MULTI-HOP NETWORKS - Systems, methods, and devices for communicating data in a wireless communications network are described herein. One innovative aspect of the present disclosure includes a method of communicating in a wireless network. The wireless network includes an access point and a relay. The method includes indicating to a client, at the relay, a network address of the access point. The method further includes receiving an association request, from the client, addressed to the access point. The method further includes forwarding the association request to the access point. | 03-13-2014 |
20140071870 | APPARATUS AND METHODS OF POWER SAVE FOR WIRELESS ACCESS POINTS AND MULTI-HOP RELAYS - Apparatuses and methods of power save for wireless access point and multi-hop relays are disclosed. In one innovation, an apparatus comprises a memory unit configured to store latency information received from the at least one communication device and a processor operationally coupled to the memory unit and configured to retrieve the latency information from the memory unit and determine a sleep-cycle for the apparatus based on the latency information, the sleep-cycle indicating a time period when the apparatus will not receive signals and will not send signals. | 03-13-2014 |
20140071881 | SYSTEMS, APPARATUS, AND METHODS FOR ASSOCIATION IN MULTI-HOP NETWORKS - Systems, methods, and devices for communicating data in a wireless communications network are described herein. One innovative aspect of the present disclosure includes a method of communicating in a wireless network. The wireless network includes an access point and a relay. The method includes receiving, at the access point, an association request from a client. The association request is forwarded by a relay. The method further includes determining a success or failure of association. The method further includes transmitting to the relay, when association fails, an indication that one or more subsequent messages from the client should be filtered. | 03-13-2014 |
20140071882 | SYSTEMS, APPARATUS, AND METHODS FOR ASSOCIATION IN MULTI-HOP NETWORKS - Systems, methods, and devices for communicating data in a wireless communications network are described herein. One innovative aspect of the present disclosure includes a method of communicating in a wireless network. The wireless network includes an access point and a relay. The method includes indicating to a client, at the relay, a network address of the access point. The method further includes receiving an association request, from the client, addressed to the access point. The method further includes forwarding the association request to the access point. | 03-13-2014 |
20140071883 | Systems, Apparatus and Methods for Association in Multi-Hop Networks - Systems, methods, and devices for communicating data in a wireless communications network are described herein. One innovative aspect of the present disclosure includes a method of communicating in a wireless network. The wireless network includes an access point and a relay. The method includes indicating to a client, at the relay, a network address of the access point. The method further includes receiving an association request, from the client, addressed to the access point. The method further includes forwarding the association request to the access point. | 03-13-2014 |
20140071885 | SYSTEMS, APPARATUS, AND METHODS FOR BRIDGE LEARNING IN MULTI-HOP NETWORKS - Systems, methods, and devices for communicating data in a wireless communications network are described herein. One innovative aspect of the present disclosure includes method of communicating in a multi-hop wireless mesh network comprising a root node and a plurality of relay nodes. The method includes attaching the first relay node having one or more descendant nodes. The method further includes transmitting an announcement. The method further includes maintaining, at the first relay node, a time-to-live timer for a descendant node. The method further includes updating a bridging table based on the time-to-live timer | 03-13-2014 |
20140075189 | SYSTEMS, APPARATUS, AND METHODS FOR ASSOCIATION IN MULTI-HOP NETWORKS - Systems, methods, and devices for communicating data in a wireless communications network are described herein. One innovative aspect of the present disclosure includes a method of communicating in a wireless network. The method includes encrypting a message based, at least in part, on an original source address, and a final destination address. The method further includes transmitting the encrypted message to a relay for delivery to the final destination address. | 03-13-2014 |
20140080481 | SYSTEM AND METHOD FOR ADVERTISING AND COMMUNICATING WITHIN A NEIGHBORHOOD AWARE NETWORK - In a particular embodiment, a method includes receiving, by a first mobile device, a first discovery message via a network advertisement protocol common to a plurality of mobile devices. The first discovery message includes information specific to a mobile device cluster that is a subset of the plurality of mobile devices. The method further includes using the information to communicate with at least a second mobile device of the mobile device cluster using a second cluster protocol that is different than the network advertisement protocol. | 03-20-2014 |
20140082185 | SYSTEMS AND METHODS FOR TRANSMITTING AND RECEIVING DISCOVERY MESSAGES - Methods, devices, and computer program products for transmitting and receiving discovery messages in a wireless communication device are described herein. One aspect of the subject matter described in the disclosure provides a method of discovering devices in a wireless communication system. The method includes receiving a first discovery message from a first device of a device cluster comprising a plurality of devices during a first discovery interval. The first discovery message includes information associated with the device cluster. The method further includes transmitting a discovery trigger message in response to the first discovery message. The method further includes receiving a second discovery message from at least one device of device cluster during a second discovery interval. The second discovery message is configured to advertise a plurality of services provided by the at least one device of the device cluster in response to the discovery trigger message. | 03-20-2014 |
20140082205 | SYSTEM AND METHOD FOR POST-DISCOVERY COMMUNICATION WITHIN A NEIGHBORHOOD-AWARE NETWORK - In a particular embodiment, a method includes determining, at a first mobile device, a post-discovery communication technique for communicating within a mobile device cluster after a discovery interval. During the discovery interval, a discovery message may be sent. The discovery message indicates the post-discovery communication protocol for communicating within the mobile device cluster after the discovery interval. The discovery message may further indicate a time interval for sending and receiving a paging request. In response to the receipt of the discovery message a second mobile devices may send a paging request, the paging request including a security information request. The method further includes sending from the first mobile device a paging response including security information and exchanging one or more post-discovery communications with the second mobile device using the security information. | 03-20-2014 |
20140112189 | PROFILE BASED DISCOVERY ENGINE CONFIGURATIONS FOR NEIGHBORHOOD AWARE WI-FI NETWORKS - Methods, devices, and computer program products for transmitting and receiving discovery and paging messages in a wireless communication device are described herein. In one aspect, a wireless apparatus operable in a wireless communication system includes a discovery engine configured to communicate with a wireless network based on a profile, the profile having defined use parameters, the discovery engine being configured to receive an input from an application indicating a selection of a profile, the discovery engine further configured to receive one or more attributes from the application and configure the profile using the one or more attributes, the attributes containing information to configure the profile to perform certain functions as defined by the application. | 04-24-2014 |
20140119357 | SYSTEMS AND METHODS FOR SYNCHRONIZATION OF WIRELESS DEVICES IN A PEER-TO-PEER NETWORK - Methods, devices, and computer program products for synchronization of wireless devices in a peer-to-peer network are described herein. In one aspect, a method for synchronizing a wireless communication apparatus is provided. The method includes receiving, at the wireless communication apparatus, one or more messages including one or more received time values. The method further includes updating a time value of a clock signal of the wireless communication apparatus to a value derived from the received time values in response to determining that a magnitude of a difference between the time value and the derived time value is greater than a threshold. | 05-01-2014 |
20140120962 | SYSTEM AND METHOD OF IDENTIFYING PAGING MODE - Systems, methods, and devices for communicating data in a wireless communications network are described herein. In some aspects, a station includes a first receiver and a low power circuit including a second receiver. The second receiver may be configured to consume less power than the first receiver. The second receiver receives short paging messages from another wireless device, such as an access point. The paging messages may trigger transitions of the first receiver from inactive doze or sleep states to active awake states based on Traffic Information Maps. Once in the awake state, the first receiver receives messages. This enables the first receiver to reduce the time spent awake, thereby reducing power consumption. A system and method for identifying and managing paging modes is described herein. | 05-01-2014 |
20140133394 | STATION, METHOD, AND APPARATUS FOR NETWORK DETECTION IN A WIRELESS COMMUNICATIONS SYSTEM - A station, method, and apparatus for network detection in a wireless communication system are provided. One implementation may include a station for identifying the presence of at least one access point to associate with. The station comprises a processor configured to generate a probe message, the probe message including a scrambling seed. The processor is further configured to transmit the probe message. The processor is further configured to receive a first probe response message from each access point, the first probe response message being encoded with the scrambling seed. The processor is further configured to receive the second probe response message from each of the access points, the second probe response message from each of the access points including at least an address of the access point. The processor is further configured to identify an access point to associate with based on the second probe response messages. The processor is further configured to generate an association request to transmit to the identified access point. The processor is further configured to transmit the association request to the identified access point. | 05-15-2014 |
20140140208 | SYSTEMS AND METHODS FOR BEACON TIMING ADJUSTMENT IN WIRELESS NETWORKS - Systems, methods, and devices for communicating in a wireless network are provided. In some aspects, an access point for wireless communication a receiver configured to receive information identifying a beacon timing of a second access point. The access point further includes a processor configured to adjust a beacon timing of the access point based on the received information identifying the beacon timing of the second access point and a transmitter configured to transmit a beacon according to the adjusted beacon timing of the access point. | 05-22-2014 |
20140146678 | Devices for Title of Invention reduced overhead paging - Methods and systems for reducing overhead paging are described. One example of such a method includes generating a compressed traffic indication map (TIM) element, the compressed TIM element comprising a partial virtual bitmap field constructed from at least one encoded block field that includes an encoded block information field identifying at least one encoding mode for encoded block information, and sending the compressed TIM element to an at least one station (STA) associated with the access point that supports at least one multiple basic service set identifier (BSSID). The method may also include, in response to the at least one encoding mode comprising an offset, length, bitmap (OLB) mode, encoding the encoded block information field to include a length subfield followed by contiguous subblock subfields, each subblock subfield including a corresponding subblock of a partial virtual map. | 05-29-2014 |
20140146725 | SYSTEM AND METHOD FOR SAVING POWER USING RESTRICTED ACCESS WINDOWS - Systems and methods for wireless communication are disclosed. In one aspect an access point includes a processor configured to generate a message identifying a time period in which the access point will enter a power save mode and ignore a packet sent from any wireless station, and a transmitter connected to the processor and configured to transmit the message to one or more wireless stations associated with the access point. | 05-29-2014 |
20140153421 | SYSTEMS AND METHODS FOR OPTIMIZATION OF BRANCH SYNCHRONIZATION NODE DETERMINATION IN A PEER-TO-PEER NETWORK - Methods, devices, and computer program products for optimization of branch synchronization node determination in a peer-to-peer network are disclosed herein. In one aspect, a higher-level node, such as a root node broadcasting master clock synchronization messages to other devices, may determine a dynamic signal strength threshold and send it in those synchronization messages. After receiving those messages, if finding the received signal strength of those messages is below the dynamic signal threshold, a receiving node will realize that it is relatively far away from the root node and hence may be a potential branch node to further relay those messages. This dynamic threshold may be determined to ensure that at least a certain percentage of receiving nodes are potential branch nodes, based on the received signal strengths of those nodes at the root node. This method can reduce device energy consumption by only requiring edge devices to relay the synchronization messages, and they can be dynamically identified based on the threshold. In addition, a branch node can also use the dynamic signal strength threshold to help the determination of its potential next-hop branch nodes. | 06-05-2014 |
20140153440 | SYSTEMS AND METHODS FOR SYNCRHONIZATION OF WIRELESS DEVICES IN AN AD-HOC NETWORK - Methods, devices, and computer program products for synchronization of wireless devices in an ad-hoc network are described herein. In one aspect, a method for synchronizing a wireless communication apparatus is provided. The method includes generating, at a wireless communication apparatus, one or more messages identifying a second device to generate prospective synchronization messages. In some aspects, the second device is a back-up root device. The method further includes transmitting a synchronization message. In one aspect, a root device for an ad-hoc network is responsible for generating synchronization messages for nodes of the ad-hoc network. The root device also generates and transmits a message which identifies a back-up root device. The back-up root device may assume responsibility for generating synchronization messages for the ad-hoc network in the event that the wireless communication apparatus no longer generates synchronization messages for the ad-hoc network. In an embodiment, the generated message identifying the back-up root device is included in a synchronization message. | 06-05-2014 |
20140153444 | SYSTEMS AND METHODS OF SELECTIVE SCANNING FOR AD-HOC NETWORKS - Methods, devices, and computer program products for selective scanning of ad-hoc networks are described herein. In one aspect, a method includes receiving a message identifying a number of times the message has been forwarded. The method further includes selectively scanning for other ad-hoc networks based on the identified number. In one aspect, a root device for an ad-hoc network is responsible for generating synchronization messages for nodes of the ad-hoc network. The synchronization message includes a count of the number of times the synchronization message has been forwarded. When the hop count reaches a limit, the synchronization message is no longer retransmitted or forwarded by receiving nodes. Nodes receiving this message may recognize they are positioned near the edge of the ad-hoc network. In at least one embodiment, these nodes may selectively scan for other ad-hoc networks based on the hop count reaching or exceeding a predetermined threshold. | 06-05-2014 |
20140153560 | SYSTEMS AND METHODS FOR OPTIMIZATION OF SYNCRHONIZATION MESSAGE TRANSMISSION INTERVALS IN A PEER-TO-PEER NETWORK - Methods, devices, and computer program products for optimization of synchronization message transmission intervals in a peer-to-peer network are described herein. In one aspect, a method for determining an optimized timing for synchronization messages is provided. The method includes receiving clock drift information from other devices on the peer-to-peer wireless communication network. This clock drift information may be used to determine the frequency with which new synchronization messages must be sent in order to keep synchronization error under a certain requirement at other devices, while minimizing the network traffic due to the transmissions of synchronization messages. | 06-05-2014 |
20140162606 | SYSTEMS AND METHODS OF PERFORMING LINK SETUP AND AUTHENTICATION - Systems and methods of performing link setup and authentication are disclosed. A method includes, at an access point, receiving an unprotected authentication request from a mobile device. The method also includes extracting an initiate message from the unprotected authentication request and sending the initiate message to an authentication server. The method further includes receiving an answer message from the authentication server, where the answer message includes a re-authentication master session key (rMSK). The method includes generating an access point nonce (ANonce) and sending an authentication response to the mobile device, where the authentication response includes the ANonce. | 06-12-2014 |
20140164763 | SYSTEMS AND METHODS OF PERFORMING LINK SETUP AND AUTHENTICATION - Systems and methods of performing link setup and authentication are disclosed. A method includes receiving, at a mobile device, a first access point nonce (ANonce) from an access point and generating a first pairwise transient key (PTK) using the first ANonce. The mobile device sends an authentication request including a station nonce (SNonce) to the access point, where the authentication request is protected using the first PTK. The mobile device receives an authentication response including a second ANonce from the access point, where the authentication response is protected using a second PTK. The mobile device generates the second PTK using the second ANonce and the SNonce and uses the second PTK to protect at least one subsequent message to be sent from the mobile device to the access point. | 06-12-2014 |
20140192793 | SYSTEMS AND METHODS FOR HIERARCHICAL TIME SOURCE USAGE IN NEAR-ME AREA NETWORK DISCOVERY AND SYNCHRONIZATION - Methods, devices, and computer program products for hierarchical time source usage in near-me area network discovery and synchronization are described herein. In one aspect, a method for determining a discovery period using a hierarchy of external timing sources is provided. The method includes receiving an external timing signal from one or more external timing sources, and then using a hierarchy of external timing sources to determine which external timing source to use. The method further provides determining an offset from that external timing source, and using the external timing source and the offset to determine a discovery interval, in which to attempt to locate a near-me area network (NAN), such as a Social-WiFi network. | 07-10-2014 |
20140198642 | SYSTEMS AND METHODS FOR MODIFYING CARRIER SENSE MULTIPLE ACCESS (CSMA) FOR DENSE NETWORKS - In one aspect, a method of communicating via a wireless medium by a wireless communications apparatus within a network is provided. The method includes detecting an operating characteristic associated with a load of the network. The method further includes determining an process for adjusting a size of a contention window in response to a successful transmission of a frame based on the detected operating characteristic, the contention window being provided for determining a deferral period for deferring access to the wireless medium. The method further transmitting information indicating the process to one or more wireless devices operating within the network. | 07-17-2014 |
20140198724 | SYSTEMS AND METHODS FOR FORMATTING FRAMES IN NEIGHBORHOOD AWARE NETWORKS - Systems and methods for formatting frames in neighborhood aware networks are described herein. One aspect of the subject matter described in the disclosure provides a method of communicating in a wireless neighborhood aware network (NAN). The method includes determining at least one connection setup information element indicating one or more connection parameters of the NAN. The method further includes determining at least one service identifier of the NAN. The method further includes generating a public action discovery frame comprising the at least one connection setup information element and the at least one service identifier. The method further includes transmitting, at a wireless device, the public action discovery frame. | 07-17-2014 |
20140198725 | SYSTEMS AND METHODS FOR FORMATTING FRAMES IN NEIGHBORHOOD AWARE NETWORKS - Systems and methods for formatting frames in neighborhood aware networks are described herein. One aspect of the subject matter described in the disclosure provides a method of communicating in a wireless neighborhood aware network (NAN). The method includes determining a discovery period. The method further includes generating a discovery window information element indicating a start time of a discovery window. The method further includes generating a NAN beacon or other sync frame comprising the discovery period and the discovery window information element. The method further includes transmitting, at a wireless device, the NAN beacon or other sync frame during the discovery window. | 07-17-2014 |
20140198741 | SYSTEM AND METHOD FOR SELECTING MEDIUM ACCESS PARAMETERS FOR EACH COMMUNICATION SESSION - Systems and methods for selecting medium access parameters for each communication session are disclosed. In one aspect an access point includes a processor configured to select a value for a medium access parameter for a particular communication session between the access point and a wireless station. | 07-17-2014 |
20140198872 | SYSTEMS AND METHODS FOR DETECTING OR SIGNALING THE PRESENCE OF BURSTY INTERFERENCE ON WIRELESS NETWORKS - Systems, methods, and devices for detecting and managing the presence of bursty interference on a wireless communication system are disclosed. One aspect of the subject matter described in the disclosure provides a method of detecting the presence of bursty interference on a wireless network. The method includes receiving, at a wireless device, a message from a transmitting device. The method further includes determining whether the message includes errors caused by bursty interference. The method further includes suspending a channel tracking when bursty interference is detected. In an embodiment the method further includes reporting bursty interference to the transmitting device when bursty interference is detected. | 07-17-2014 |
20140211659 | SYSTEMS AND METHODS FOR MONITORING THE SIZE OF A WIRELESS NETWORK - Systems and methods for monitoring the number of neighboring wireless devices in a wireless network are described herein. In one aspect, the method includes receiving a message from one of the neighboring wireless devices having an identifier associated with the neighboring wireless device and adding the identifier into a Bloom filter. The method may further include estimating the number of distinct strings that have been added into the Bloom filter based on the number of zeros in the Bloom filter, the number of distinct strings representing an estimate of the number of neighboring wireless devices in the wireless network. | 07-31-2014 |
20140233425 | AUTOMATIC CONFIGURATION OF A WIRELESS DEVICE - A method of automatically configuring a wireless device includes performing service discovery by the wireless device to identify a programming module and sending to the programming module a probe request including a first device public key. The method includes receiving from the programming module a probe response including an indication of a match between the first device public key and a second device public key. | 08-21-2014 |
20140241266 | SYSTEMS AND METHODS FOR REDUCED LATENCY WHEN ESTABLISHING COMMUNICATION WITH A WIRELESS COMMUNICATION SYSTEM - Systems and methods reduce latency associated with establishing communication on a wireless network. In one aspect, an access point determines interface identifiers for associated stations. Because the access point can ensure interface identifiers are not duplicated across associated stations, the need for duplicate address detection by the stations is reduced. In another aspect, an access point provides domain name system server network address information to a station. By providing the network address information of the DNS server, the need for the station to perform separate signaling to obtain the information is reduced. In another aspect, an access point transmits a mapping of a first station's network address to the first station's medium access control address to one or more associated stations. This may reduce the need for an associated station to perform address resolution signaling when attempting to communicate with the first station. | 08-28-2014 |
20140241267 | SYSTEMS AND METHODS FOR REDUCED LATENCY WHEN ESTABLISHING COMMUNICATION WITH A WIRELESS COMMUNICATION SYSTEM - Systems and methods reduce latency associated with establishing communication on a wireless network. In one aspect, an access point determines interface identifiers for associated stations. Because the access point can ensure interface identifiers are not duplicated across associated stations, the need for duplicate address detection by the stations is reduced. In another aspect, an access point provides domain name system server network address information to a station. By providing the network address information of the DNS server, the need for the station to perform separate signaling to obtain the information is reduced. In another aspect, an access point transmits a mapping of a first station's network address to the first station's medium access control address to one or more associated stations. This may reduce the need for an associated station to perform address resolution signaling when attempting to communicate with the first station. | 08-28-2014 |
20140254426 | SYSTEMS AND METHODS FOR SYNCHRONIZATION WITHIN A NEIGHBOR AWARE NETWORK - Methods, apparatus, and computer readable storage mediums for enabling reduced power consumption in wireless devices operating in a neighbor aware network are disclosed. In one aspect, a method includes generating a first message, the first message indicating beacon transmit window information, the beacon transmit window information indicating a first time interval when one or more beacon messages are transmittable, and transmitting the first message on the neighbor aware network. | 09-11-2014 |
20140254479 | SYSTEMS AND METHODS FOR DISCOVERING DEVICES IN A NEIGHBORHOOD AWARE NETWORK - Methods, devices, and computer program products communicating discovery information in a wireless neighborhood aware network (NAN). One method includes receiving a message from a neighboring wireless device. The message includes an identifier associated with the neighboring wireless device. The method further includes adding the identifier to a data structure indicative of discovered device identifiers. The method further includes transmitting a message including the data structure indicative of discovered device identifiers. | 09-11-2014 |
20140254513 | SYSTEMS AND METHODS FOR DISCOVERING DEVICES IN A NEIGHBORHOOD AWARE NETWORK - Methods, devices, and computer program products communicating discovery information in a wireless neighborhood aware network (NAN). One method includes receiving, at a first wireless device, a message from a neighboring wireless device. The message includes a data structure indicative of discovered device identifiers. The method further includes determining whether the data structure indicates an identifier of the first wireless device. The method further includes transmitting a message including the identifier of the first wireless device when the data structure does not indicate the identifier of the first wireless device. | 09-11-2014 |
20140254569 | SYSTEMS AND METHODS FOR DISCOVERING AND SYNCHRONIZING WITHIN A NEIGHBOR AWARE NETWORK - Methods, devices, and computer program products for optimization of message transmission intervals in a NAN are described herein. In one aspect, a method for discovering a cluster of STA's forming a NAN is provided. The method includes generating a NAN beacon at an access point (AP). The NAN beacon includes timing information for the NAN. The timing information indicates a first time interval when one or more messages can be transmitted within the NAN. The method further includes transmitting the NAN beacon. | 09-11-2014 |
20140269360 | ACCESS POINT PROXY AND MULTI-HOP WIRELESS COMMUNICATION - Methods and devices for communicating data in a wireless communications network are described herein. In one aspect, network layers are offloaded from a station to an access point. In another aspect, flow control is introduced between the station and access point. In another aspect, segmentation is introduced between the station and access point. In another aspect, keep alive is introduced between the station and access point. In another aspect, in addition to MAC layer sequencing and acknowledging, additional sequencing and acknowledging is performed between the station and access point to ensure reliable transmission of data. In another aspect, MAC layer sequencing and acknowledging is disabled. In another aspect, a last MPDU fragment is used to ensure reliable transmission of data. | 09-18-2014 |
20140269555 | SYSTEMS AND METHODS FOR SHARING CONTEXT INFORMATION IN A NEIGHBOR AWARE NETWORK - Systems and methods share context information on a neighbor aware network. A method for communicating data in a wireless communications network is disclosed. The method includes receiving, by a device, a first message from a station, decoding the message to determine service information, the service information identifying a service provided by the station, generating a second message, wherein the second message is generated to indicate the service provided by the station and service information of the device, and transmitting, by the device, the second message to a remote station. | 09-18-2014 |
20140269631 | SYSTEMS AND METHODS FOR GROUPING NODES TO REDUCE COLLISIONS - Systems, methods, and devices for grouping nodes to reduce collisions are described herein. In one aspect, a method for reducing collisions in a wireless communication network is provided. The method includes receiving a packet from a first wireless device, the packer including an indication of a packet loss observed by the first wireless device. The method then determines that a collision occurred based on the indication of a packet loss. The method then assigns at least one wireless device to at least one group, based at least in part on the detected collision. | 09-18-2014 |
20140269658 | SYSTEMS AND METHODS FOR SHARING CONTEXT INFORMATION IN A NEIGHBOR AWARE NETWORK - Systems and methods share context information on a neighbor aware network. In one aspect, a context providing device receives a plurality of responses to a discovery query from a context consuming device, and tailors services it offers to the context consuming device based on the responses. In another aspect, a context providing device indicates in its response to a discovery query which services or local context information it can provide to the context consuming device, and also a cost associated with providing the service or the local context information. In some aspects, the cost is in units of monetary currency. In other aspects, the cost is in units of user interface display made available to an entity associated with the context providing device in exchange for the services or local context information offered to the context consuming device. | 09-18-2014 |
20140281541 | AUTHENTICATION FOR RELAY DEPLOYMENT - Techniques for proving enterprise mode security for relays are disclosed. For example, enterprise mode security based on IEEE 802.1x is provided for relays or other similar devices to extend the coverage of access point hotspots or other similar access point use cases. According to one aspect, a relay incorporates an authentication client associated with an authentication server. According to another aspect, a four address format is employed for tunneling messages via a relay between a station and an access point. According to another aspect, a cryptographic master key associated with an access point and a station is provided to a relay to enable the relay to be an authenticator for the station. | 09-18-2014 |
20140282909 | AUTHENTICATION FOR RELAY DEPLOYMENT - Techniques for proving enterprise mode security for relays are disclosed. For example, enterprise mode security based on IEEE 802.1x is provided for relays or other similar devices to extend the coverage of access point hotspots or other similar access point use cases. According to one aspect, a relay incorporates an authentication client associated with an authentication server. According to another aspect, a four address format is employed for tunneling messages via a relay between a station and an access point. According to another aspect, a cryptographic master key associated with an access point and a station is provided to a relay to enable the relay to be an authenticator for the station. | 09-18-2014 |
20140286262 | METHOD FOR FORWARDING IN PEER-TO-PEER WIRELESS COMMUNICATIONS - Certain aspects of the present disclosure relate to a method for forwarding of data in peer-to-peer transactions by a high-capability wireless device, such as an access point. | 09-25-2014 |
20140293851 | SYSTEMS AND METHODS FOR SYNCHRONIZATION WITHIN A NEIGHBORHOOD AWARE NETWORK - Methods, devices, and computer program products for synchronization of wireless devices in a peer-to-peer network are described herein. In one aspect, a method for determining at least one of a time for exiting and a time for entering a low power sleep mode to utilize a discovery window is provided. The method includes determining an earliest possible start time of a discovery window according to a clock at the first device. The method further includes transitioning from the low power sleep mode to a higher power active mode approximately at the determined earliest possible start time, wherein the determined earliest possible start time is based at least in part on a clock drift value associated with the first device and a clock drift value associated with a second device of the wireless network. | 10-02-2014 |
20140293991 | SYSTEMS AND METHODS FOR SYNCHRONIZATION WITHIN A NEIGHBORHOOD AWARE NETWORK - Methods, devices, and computer program products for synchronization of wireless devices in a peer-to-peer network are described herein. In one aspect, a method for synchronizing a wireless communication apparatus is provided. The method includes receiving one or more synchronization messages, each synchronization message having timing information and a cluster identifier, the timing information comprising anchor timing information, the cluster identifier being the same value as a cluster identifier of the apparatus. The method further includes determining whether a difference between a time value when a received synchronization message last received anchor timing information and a time value maintained for the apparatus is greater than a threshold. The method further includes discarding the received synchronization message if the difference exceeds the threshold. | 10-02-2014 |
20140293992 | SYSTEMS AND METHODS FOR SYNCHRONIZATION WITHIN A NEIGHBORHOOD AWARE NETWORK - Methods, devices, and computer program products for synchronization of wireless devices in a peer-to-peer network are described herein. In one aspect, a method for synchronizing a wireless communication apparatus is provided. The method includes initiating a contention based process for transmitting a synchronization message during a discovery time interval of a discovery time period. The synchronization message includes a first timestamp of the wireless communication apparatus. The method further includes selectively transmitting the synchronization message based on a master preference value of the wireless communication apparatus. | 10-02-2014 |
20140294019 | FRAGMENTATION FOR LONG PACKETS IN A LOW-SPEED WIRELESS NETWORK - A method includes receiving a data fragment of a block of data fragments of a single data unit from a wireless device at a receiver. The method includes, in response to determining that the data fragment is a last data fragment of the block of data fragments, transmitting an acknowledgement to the wireless device. The acknowledgement indicates whether each data fragment of the block of data fragments was received from the wireless device. The method includes, in response to determining that the data fragment is a last data fragment of the single data unit, transmitting the acknowledgment to the wireless device. The method further includes, in response to determining that the data fragment is not the last data fragment of the block of data fragments or the last data fragment of the single data unit, refraining from transmitting the acknowledgement to the wireless device. | 10-02-2014 |
20140301190 | SYSTEMS AND METHODS FOR COLLISION MANAGEMENT IN A NEIGHBORHOOD AWARE NETWORK - Methods, devices, and computer program products for collision management of wireless devices in a peer-to-peer network are described herein. In one aspect, a method of communicating via a wireless medium by a wireless communications apparatus within a network is provided. The method includes determining first and second contention windows. The first contention window begins earlier than the second contention window. The method further includes beginning a first carrier sense multiple access (CSMA) countdown at the start of the first contention window. The method further includes beginning a second CSMA countdown when the first CSMA countdown does not end before the start of the second contention window. The method further includes transmitting the prepared frame at a time of the first CSMA countdown ending or the second CSMA countdown ending, whichever is earlier. | 10-09-2014 |
20140301208 | SYSTEMS AND METHODS FOR GENERATING AND DECODING SHORT CONTROL FRAMES IN WIRELESS COMMUNICATIONS - Systems, methods, and devices for communicating short control frames are described herein. In some aspects, a method of wireless communication includes generating a control frame comprising a contention free end (CF-end) frame, the CF-end frame comprising a physical layer preamble having a type field, the type field including an indicator indicating the CF-end frame is a null data packet (NDP). The method further includes transmitting the control frame. | 10-09-2014 |
20140301295 | SYSTEMS AND METHODS FOR COLLISION MANAGEMENT IN A NEIGHBORHOOD AWARE NETWORK - Methods, devices, and computer program products for collision management of wireless devices in a peer-to-peer network are described herein. In one aspect, a method of communicating via a wireless medium by a wireless communications apparatus within a neighborhood aware network is provided. The network is configured with periodic discovery windows, and sized for a maximum number of devices M. The method includes determining a discovery window interval K, the smallest integer greater than or equal to one, such that the probability that more than a threshold M devices will transmit during the same discovery window is less than a threshold probability P. The method further includes selecting a random or pseudo-random integer m in the range from 0 to K−1, deferring for at least m discovery windows after a previous interval K−1 has elapsed, and transmitting a discovery frame during the next discovery window after said deferring. | 10-09-2014 |
20140304078 | SYSTEMS AND METHODS FOR POWER EFFICIENT DISCOVERY OF INFRASTRUCTURE SERVICES ON A NETWORK - Systems, methods, and devices for power-efficient discovery of infrastructure services on a network are disclosed. In one aspect, a method for using advertising windows to transmit service information on a network is disclosed. The method includes transmitting timing information regarding an advertising window during which information on services offered by one or more nodes on the network will be advertised. The method further includes during the advertising window, transmitting information on services offered by one or more nodes on the network. | 10-09-2014 |
20140313966 | SYSTEMS AND METHODS FOR IDENTIFICATION IN A NEIGHBORHOOD AWARE NETWORK - Methods, devices, and computer program products for synchronization of wireless devices in a peer-to-peer network are described herein. In one aspect, a method of communicating in a neighborhood aware network (NAN) is provided. The method includes generating a NAN frame including one or more of a first address field, a second address field, a third address field, a third address field, and an information element. The method further includes encoding a NAN identifier in at least one of the first address field, the third address field, and the information element. The method further includes transmitting the NAN frame. | 10-23-2014 |
20140314003 | ACCESS POINT DISCOVERY CHANNEL - Access points communicate via a discovery channel. For example, access points may transmit at a higher transmit power and at a lower rate on the discovery channel than on operating channels. In this way, the radio frequency range of the discovery channel is longer than the range of any of the operating channels. Consequently, a particular access point can communicate with and thereby account for other access points that the particular access point might not hear via an operating channel. | 10-23-2014 |
20140314004 | GROUP SCHEDULING AND ACKNOWLEDGEMENT FOR WIRELESS TRANSMISSION - An acknowledgment (ACK) frame has two parts: a group ACK part and a scheduling information part. In the group ACK part, an ACK/NACK indicator is included for a previous uplink (UL) transmission per station (STA). In the scheduling information part, information included for the following UL transmission per selected STA may comprise, for example, one or more of: a number of selected STAs, a media access control (MAC) address of each selected STA, a data transmission duration per selected STA, a transmission rate per selected STA, a request transmission duration, a pilot transmission order, or a STA transmission order. | 10-23-2014 |
20140328234 | SYSTEMS AND METHODS FOR POWER SAVE DURING INITIAL LINK SETUP - Systems, methods, and devices for communicating data in a wireless communications network are described herein. In some aspects, a station transmits an authentication request to an access point and for the access point to transmit an authentication initiation request to an authentication server. The station receives an authentication response comprising an estimated response delay from the access point. The station transitions from an awake state to a sleep state for a duration of time based on the estimated response delay. The station transmits an association request to the access point after the duration of time and transitioning from the sleep state to the awake state. The station receives an association response from the access point, where the association response comprises an authentication status that indicates whether authentication with the authentication server is successful. | 11-06-2014 |
20140328268 | TRANSMIT OPPORTUNITY (TXOP) BASED CHANNEL REUSE - A method includes determining, at a first transmitter, whether to permit reuse of a first transmit opportunity (TXOP) associated with a message. The method further includes sending a portion of the message from the first transmitter to a first receiver. The portion of the message indicates whether reuse, by a reuse transmitter, of the first TXOP is permitted. When reuse of the first TXOP is permitted, the reuse transmitter is permitted to send a second message while the first transmitter sends a second portion of the message to the first receiver during the first TXOP. | 11-06-2014 |
20140328269 | TRANSMIT OPPORTUNITY (TXOP) BASED CHANNEL REUSE - A method includes sending, from a first transmitter to a first receiver, a request to send (RTS) message associated with a first transmit opportunity (TXOP). The RTS message requests the first receiver to indicate whether reuse of the first TXOP is permitted. The method further includes receiving, at the first transmitter from the first receiver, a clear to send (CTS) message responsive to the RTS message. | 11-06-2014 |
20140328270 | TRANSMIT OPPORTUNITY (TXOP) BASED CHANNEL REUSE - A method includes determining, at a first transmitter, a clear channel access (CCA) threshold associated with reuse of a first transmit opportunity (TXOP) of a message. The method further includes sending, from the first transmitter to a first receiver, at least a portion of the message, wherein the portion of the message indicates the CCA threshold. | 11-06-2014 |
20140329498 | SYSTEMS AND METHODS FOR POWER SAVE DURING INITIAL LINK SETUP - Systems, methods, and devices for communicating data in a wireless communications network are described herein. In some aspects, an access point receives an authentication request from a station. The access point transmits an authentication initiation request to an authentication server. The access point transmits an authentication response, which includes an estimated response delay, to the station after the authentication initiation request is transmitted to the authentication server. The estimated response delay may allow the station to transition from an awake state to a sleep state for a time based on the estimated response delay. The access point receives an authentication status from the authentication server. The access point receives an association request from the station after the station transitions from the sleep state to the awake state. The access point transmits the authentication status to the station in response to receiving the association request. | 11-06-2014 |
20140334438 | SYSTEMS AND METHODS FOR WLAN ROAMING - Systems and methods are provided to improve roaming performance and to minimize disruptions in connectivity. When roaming between a source AP and a target AP, the device determines whether the APs employ different gateways, such as through an ARP exchange. If the source and target APs have different gateways, a DHCP exchange is used to renew the IP address of the device to restore network connectivity. | 11-13-2014 |
20140341073 | METHOD AND METRICS FOR MERGING WITH A NEIGHBORHOOD AWARE NETWORK - Methods, apparatuses, and computer program products for the selection, identification, and comparison of metrics used by a wireless device within range of a plurality of wireless communication systems, such as neighborhood aware networks, to determine which wireless communication system provides the desired capabilities and services. These metrics can be dynamically selected by a device and implemented for software decision making as additional wireless communication systems with new, different, or better characteristics fall within range of a given wireless device. | 11-20-2014 |
20140348025 | SYSTEM AND METHOD OF INFRASTRUCTURE SERVICE DISCOVERY - A system and method of infrastructure service discovery is disclosed. In a particular embodiment, a method includes generating a service query message at a mobile station. The method also includes sending the service query message to an advertisement server via an uncontrolled port. | 11-27-2014 |
20140351435 | SYSTEM AND METHOD OF INFRASTRUCTURE SERVICE DISCOVERY - A system and method of infrastructure service discovery is disclosed. In a particular embodiment, a method includes requesting, from an access point, association without authentication and a restricted Internet protocol (IP) address, wherein the restricted IP address is restricted for use in a service discovery procedure. | 11-27-2014 |
20140351598 | SYSTEMS AND METHODS FOR BROADCAST WLAN MESSAGES WITH MESSAGE AUTHENTICATION - Systems, methods, and devices for broadcast wireless local area network messages with message authentication are contained herein. The method includes determining a digital signature for a broadcast packet to be transmitted to a plurality of devices on a wireless local area network, the digital signature encrypted using asymmetric cryptography to enable each of the plurality of devices to verify an identity of a device transmitting the broadcast packet. The method further includes transmitting the broadcast packet on the network, the broadcast packet including the digital signature. | 11-27-2014 |
20140351932 | SYSTEMS AND METHODS FOR BROADCAST WLAN MESSAGES WITH MESSAGE AUTHENTICATION - Systems, methods, and devices for multicast wireless local area network messages with message authentication are contained herein. The method includes determining a message integrity check value for each of a plurality of wireless devices. The method further includes transmitting a multicast packet to each of the plurality of devices on a wireless local area network, the multicast packet including an indication of each of the plurality of devices and the message integrity check value for each of the plurality of devices. | 11-27-2014 |
20140357269 | SERVER-ASSISTED DEVICE-TO-DEVICE DISCOVERY AND CONNECTION - A method includes receiving, at a network node, a device-to-device D2D discovery request from a first device and sending a D2D discovery response from the network node to the first device. The D2D discovery response includes information associated with a second device that is available to establish a D2D connection with the first device. The network node may perform inquiries regarding D2D connection permission from both devices. If D2D connection is permitted by both devices, the network node may facilitate the D2D scanning by sending each device's scanning information to the other device via a non-D2D link. In parallel to D2D scanning, the network node may speed up D2D link setup by distributing, via non-D2D links, link setup information to each device, where the link setup information may include device credential(s), IP address allocation(s), and/or group owner assignment. | 12-04-2014 |
20140359148 | EFFICIENT INFRASTRUCTURE SERVICE DISCOVERY WITH SECURITY - Systems, methods, and apparatuses for efficient infrastructure service discovery with security are disclosed. In one aspect, systems and methods for advertising services available via an access point without requiring a device to connect for discovery are described. This may allow devices to determine, prior to establishing a connection with an access point, whether a desired service is offered. Further description of publication rules is provided. Service providers can use the publication rules to identify service information which may be discovered by devices based on device authentication status or other factors to allow controlled, secure discovery of the service information. | 12-04-2014 |
20140362817 | PROTOCOLS FOR ENABLING MODE 1 AND MODE 2 DEVICES IN TV WHITE SPACE NETWORKS - Certain aspects of the present disclosure provide techniques and apparatus for operating in a television white space (TVWS) network. One example method generally includes receiving, at an apparatus, a message with a field indicating a current version of an unused frequency spectrum map (e.g., a white space map (WSM)), the unused frequency spectrum map indicating channels usable for wireless communications; determining whether the current version of the unused frequency spectrum map is different than a previous version of the unused frequency spectrum map; and using a channel for wireless communications based on the determination. Another example method generally includes accessing a database of available channels for a current location of an apparatus via a neighboring portable or fixed enabling apparatus and enabling one or more portable dependent apparatuses for the wireless communications via one or more of the available channels. | 12-11-2014 |
20140362819 | PROTOCOLS FOR ENABLING MODE 1 AND MODE 2 DEVICES IN TV WHITE SPACE NETWORKS - Certain aspects of the present disclosure provide techniques and apparatus for operating in a television white space (TVWS) network. One example method generally includes receiving, at an apparatus, a message with a field indicating a current version of an unused frequency spectrum map (e.g., a white space map (WSM)), the unused frequency spectrum map indicating channels usable for wireless communications; determining whether the current version of the unused frequency spectrum map is different than a previous version of the unused frequency spectrum map; and using a channel for wireless communications based on the determination. Another example method generally includes accessing a database of available channels for a current location of an apparatus via a neighboring portable or fixed enabling apparatus and enabling one or more portable dependent apparatuses for the wireless communications via one or more of the available channels. | 12-11-2014 |
20140369263 | DUAL INTERPRETATION OF A LENGTH FIELD OF A SIGNAL UNIT - A method includes receiving, at a wireless device, a frame via a sub-1 gigahertz (GHz) wireless network. The frame includes a signal (SIG) unit including a length field and an aggregation field. The length field may be interpreted as a number of bytes or as a number of symbols based on a value of the aggregation field and based on whether the frame is associated with a 1 megahertz (MHz) bandwidth mode, based on whether the frame includes either a short format preamble or a long format preamble, or based on whether the frame is determined to be a single user (SU) frame or a multi user (MU) frame. | 12-18-2014 |
20140369302 | SYSTEMS AND METHODS FOR COMMUNICATION OF CHANNEL STATE INFORMATION - Certain aspects of the present disclosure relate to a technique for communicating Channel State Information (CSI) feedback. In some aspects, the CSI feedback is communicated in a very high throughput (VHT) wireless communications system. | 12-18-2014 |
20150016415 | SYSTEM AND METHOD TO ASSIGN AN INTERNET PROTOCOL ADDRESS TO A MOBILE DEVICE DURING A HANDOFF - A method includes receiving, at a mobile device during a first association with a first access point (AP), a first internet protocol (IP) address assigned by a dynamic host configuration protocol (DHCP) server. The method also includes, based on handoff of the mobile device from the first AP to a second AP, sending an association request from the mobile device to the second AP. The association request includes the first IP address. The method further includes receiving the first IP address at the mobile device during a second association with the second AP, the first IP address reassigned to the mobile device by the second AP. | 01-15-2015 |
20150023288 | DUAL INTERPRETATION OF A LENGTH FIELD OF A SIGNAL UNIT - A method includes generating, at a second wireless device, a signal (SIG) unit to be transmitted to a first wireless device. The SIG unit includes a length field and an aggregation field. In response to determining to use aggregated transmission to the first wireless device, the method further includes setting the aggregation field to a first value and setting the length field to a number of symbols. In response to determining not to use the aggregated transmission to the first wireless device, the method further includes setting the aggregation field to a second value and setting the length field to a number of bytes. | 01-22-2015 |
20150029839 | APPARATUS AND METHODS FOR BLOCK ACKNOWLEDGMENT COMPRESSION - Systems, methods, and devices for compressing block acknowledgment (ACK) frames/packets are described herein. In some aspects, a method of communicating in a wireless network includes a compressed block acknowledgment frame including a bitmap, the bitmap indicating receipt of a plurality of fragments of a single data unit. The method further includes transmitting the compressed block acknowledgment frame. | 01-29-2015 |
20150049671 | ASSOCIATION LIMIT IN RELAY NETWORK - A method, an apparatus, and a computer program product for wireless communication are provided. In aspect, a first apparatus receives from a second apparatus information related to an ability of the second apparatus to associate with other apparatuses, and limits associations at the first apparatus based on the information. In another aspect, the first apparatus associates with a second apparatus, and transmits to the second apparatus information that indicates a number of desirable associations at the second apparatus. | 02-19-2015 |
20150063189 | ADAPTIVE RTS/CTS IN HIGH-EFFICIENCY WIRELESS COMMUNICATIONS - A method, apparatus, and non-transitory computer readable media configured to adaptively enable a request to send/clear to send protocol is disclosed herein. An embodiment may comprise identifying one or more rules including on one or more of a plurality of communication link characteristics of a plurality of communication links between an access point and one or more devices of a plurality of devices. An embodiment may further comprise selectively enabling the request to send/clear to send protocol between the access point and the one or more devices of the plurality of wireless devices based on whether each link characteristic of the one or more rules has satisfied a link characteristics threshold in each rule. In certain embodiments, a station or an access point may identify a rule and transmit the rule to other devices, stipulating one or more conditions which request to send/clear to send is to be used. | 03-05-2015 |
20150063208 | SYSTEMS AND METHODS FOR SERVICE IDENTIFICATION IN NEIGHBORHOOD AWARE NETWORKS - Systems and methods in accordance with various embodiments provide for robust service IDs for utilization in wireless devices in neighbor aware networks. In certain embodiments, a service ID is generated as a hash value from a diversified input string. One aspect of the subject matter described in the disclosure provides a method of transmitting service information in a wireless neighborhood aware network. The method includes generating, via a wireless device, a message including a hash value of a data string, the data string including both a name of a service and information identifying a type of the message. The message further includes a matching filter field including matching filter information that characterizes the service named in the data string. The method further includes transmitting the message. | 03-05-2015 |
20150063209 | METHODS AND SYSTEMS FOR IMPROVED UTILIZATION OF A WIRELESS MEDIUM - Systems, methods, and devices for wireless communication are provided. In an embodiment, a method of wireless communication includes receiving, at an access point, a probe request, generating a probe response to conditionally include neighbor report information based on the probe request; and transmitting the probe response to a wireless device. | 03-05-2015 |
20150063256 | METHODS AND SYSTEMS FOR IMPROVED UTILIZATION OF A WIRELESS MEDIUM - Systems, methods, and devices for wireless communication are provided. In an embodiment, a method of determining communication parameters for wireless communication includes receiving, at an access point, a probe request comprising a transmission power indication. The method further includes determining a received transmission power. The method further includes estimating a path-loss based on the transmission power indication and received transmission power. The method further includes transmitting a first probe response using a first set of communication parameters defining a first rate. The method further includes transmitting a second probe response using a second set of communication parameters defining a second rate when the access point does not receive an acknowledgement to the first probe response within a timeout period, the second rate being lower than the first rate. | 03-05-2015 |
20150063319 | SYSTEMS, METHODS, AND APPARATUS FOR PREVENTING MULTIPLE RE-ASSOCIATION ATTEMPTS - Systems, methods, and devices for wireless communication are described herein. In some aspects, a method for preventing multiple re-association attempts includes identifying a station, determining a back-off period for the identified station during which an access point will reject association requests from the station, and transmitting a message to the station, the message including the determined back-off period. The method may further include rejecting association requests from the identified station during the back-off period. The method may also include determining a timeout period for the identified station after which disassociation with the access point will occur. The message may further include the determined timeout period. The method may also include disassociating the identified station after the timeout period. | 03-05-2015 |
20150063333 | METHODS AND SYSTEMS FOR IMPROVED UTILIZATION OF A WIRELESS MEDIUM - Systems, methods, and devices for wireless communication are provided. In an embodiment, a method of wireless communication includes receiving, at an access point, a probe request from a wireless device, transmitting a probe response including shared access point state information, receiving an association request including an indication that the wireless device has stored the shared access point state information, and transmitting an association response conditionally including the shared access point state information based on the indication in the association request. | 03-05-2015 |
20150063335 | METHODS AND SYSTEMS FOR IMPROVED UTILIZATION OF A WIRELESS MEDIUM - Systems, methods, and devices for wireless communication are provided. In an embodiment, a method of wireless communication includes receiving, at an access point, a probe request, decoding the probe request to determine shared wireless device state information, storing the shared wireless device state information for at least a timeout period, transmitting a probe response indicating the timeout period; and receiving an association request omitting the wireless device state information within the timeout period. | 03-05-2015 |
20150063336 | METHODS AND SYSTEMS FOR IMPROVED UTILIZATION OF A WIRELESS MEDIUM - Systems, methods, and devices for wireless communication are provided. In an embodiment, a method of determining a set of communication parameters for a wireless communication includes transmitting, at an access point, one or more frames each including a transmission power indication, receiving, at the access point, a probe request using a first set of communication parameters; and transmitting, at the access point, a probe response using a second set of communication parameters, the second set of communication parameters based on the first set of communication parameters. In some aspects, each of the first and second set of communication parameters define a MCS, which defines a coding rate of the communication. | 03-05-2015 |
20150065155 | SYSTEMS AND METHODS FOR IMPROVED COMMUNICATION EFFICIENCY IN HIGH EFFICIENCY WIRELESS NETWORKS - Systems, methods, and devices for wireless communication are described herein. In some aspects, a method of wireless communication includes transmitting a first message for reserving a communication medium utilizing a first transmission characteristic such that the first message is decodable by at least a first subset of a plurality of wireless devices. The method may further include subsequently transmitting a second message for clearing a reservation of the communication medium utilizing a second transmission characteristic such that the second message is decodable by at least a second subset of the plurality of wireless devices and not the first subset of the plurality of wireless devices, thereby clearing access to at least one communication channel for the second subset of the plurality of wireless devices. | 03-05-2015 |
20150071121 | SYSTEMS AND METHODS FOR CONCURRENT SERVICE DISCOVERY AND MINIMUM SPANNING TREE FORMATION FOR SERVICE DELIVERY - Systems, methods, and devices for wireless service delivery are described herein. In some aspects, a method for wireless service deliver may include transmitting, by a first wireless node, and receiving, from each of a plurality of wireless nodes, a service discovery message for a service. The method may further include selecting one of the plurality of wireless nodes based on a link quality metric associated with each of the plurality of wireless nodes. The method may additionally include establishing a communication pathway to a provider of the service through a link to the selected wireless node. | 03-12-2015 |
20150071443 | SYSTEMS AND METHODS FOR FAST INITIAL LINK SETUP SECURITY OPTIMIZATIONS FOR PSK & SAE SECURITY MODES - Systems, methods, and devices for communicating data in a wireless communications network are described herein. In some aspects, an access point transmits a beacon to a station. The beacon comprises a Wi-Fi Protected Access II pre-sharked key (WPA2-PSK) authentication type. The access point further receives an authentication request from the station. The access point further transmits an authentication response to the station. The authentication response comprises the WPA2-PSK authentication type. The access point further retrieves a PSK and generates a PMK based on the PSK. The access point further receives an association request from the station after generation of the PMK. The association request comprises a key confirmation derived from the PSK. The access point further transmits an association response to the station in response to reception of the association request. The association response comprises the key confirmation. | 03-12-2015 |
20150081840 | SYSTEM AND METHOD FOR MULTIHOP SERVICE DISCOVERY WITH MEMBER STATION PROXY SERVICE ADVERTISEMENTS - Systems and methods for multi-hop service discovery within a mobile device cluster are disclosed. A seeker station may be seeking or may have found a desired service available from a provider station. The seeker station may receive the service announcement from the provider station, and become a proxy station, expanding the service area of the provider station. The proxy station may selectively transmit services and advertisements for services on behalf of the provider station based on restrictions placed on selection as a proxy station. Restrictions or conditions may be placed on the proxy station limiting the number of stations that may become proxy stations, limiting traffic within the cluster. Some restrictions may require a proxy station to be a member of the cluster or a member of a group within the cluster. Selection as a proxy station and frequency of transmission of service announcements by proxy stations may also be conditioned on various specific parameters or combinations of parameters as specified by the provider station. | 03-19-2015 |
20150085653 | METHOD AND APPARATUS FOR SUPPORTING MODULATION-CODING SCHEME SET IN VERY HIGH THROUGHPUT WIRELESS SYSTEMS - Certain aspects of the present disclosure relate to techniques for designing Modulation-Coding Scheme (MSC) set fields in a transmission frame of Very High Throughput (VHT) wireless systems. | 03-26-2015 |