Patent application number | Description | Published |
20080198811 | WIRELESS NODE SEARCH PROCEDURE - An access terminal scans for nearby access points and maintains a candidate list of access point with which the access terminal may associate in the event the access terminal's communication with its current access point deteriorates for some reason. This search procedure may be performed in a proactive manner whereby the access terminal repeatedly performs scans and updates its list of candidate access points when it is powered on. In some aspects, the search procedure used by the access terminal may be based on a state of the wireless device. In addition, different states of the access terminal may be associated with different optimization criteria. | 08-21-2008 |
20080205340 | NEIGHBOR DISCOVERY IN A WIRELESS SYSTEM - Beacons may be grouped to facilitate neighbor discovery in a wireless network. For example, neighboring access devices such as IEEE 802.11 access points may cooperate to transmit beacons in a group. In this way, a wireless device seeking to discover the neighboring access devices may scan for the beacons for a shorter period of time. An indication may be provided to enable a wireless device to more efficiently scan the beacons. For example, the indication may indicate the channel the wireless device should scan to receive the next beacon that is to be transmitted. In addition, the indication may include information relating to the transmission time of the next beacon. | 08-28-2008 |
20090034458 | METHOD FOR SCHEDULING ORTHOGONALLY OVER MULTIPLE HOPS - Apparatus and method for providing a relay between uplink and downlink nodes. The relay is provided by simultaneously communicating with the uplink and downlink nodes on a common channel. | 02-05-2009 |
20090036138 | METHOD FOR SCHEDULING ORTHOGONALLY OVER MULTIPLE HOPS - Apparatus and method for supporting wireless downlink and uplink connections. In the downlink direction, an apparatus receives from the downlink node a request to communicate using an allocation of radio resources specified by the downlink node, and transmits to the downlink node a grant to communicate using at least a portion of the specified allocation of radio resources. In the uplink direction, the apparatus sends a request to a downlink node to communicate using a specified allocation of radio resources, and receives from the downlink node a grant to communicate using at least a portion of the specified allocation of radio resources | 02-05-2009 |
20090042593 | ADAPTATION OF TRANSMIT POWER FOR NEIGHBORING NODES - Transmit power (e.g., maximum transmit power) may be defined based on the maximum received signal strength allowed by a receiver and a minimum coupling loss from a transmitting node to a receiver. Transmit power may be defined for an access node (e.g., a femto node) such that a corresponding outage created in a cell (e.g., a macro cell) is limited while still providing an acceptable level of coverage for access terminals associated with the access node. An access node may autonomously adjust its transmit power based on channel measurement and a defined coverage hole to mitigate interference. Transmit power may be defined based on channel quality. Transmit power may be defined based on a signal-to-noise ratio at an access terminal. The transmit power of neighboring access nodes also may be controlled by inter-access node signaling. | 02-12-2009 |
20090042594 | ADAPTATION OF TRANSMIT POWER BASED ON MAXIMUM RECEIVED SIGNAL STRENGTH - Transmit power (e.g., maximum transmit power) may be defined based on the maximum received signal strength allowed by a receiver and a minimum coupling loss from a transmitting node to a receiver. Transmit power may be defined for an access node (e.g., a femto node) such that a corresponding outage created in a cell (e.g., a macro cell) is limited while still providing an acceptable level of coverage for access terminals associated with the access node. An access node may autonomously adjust its transmit power based on channel measurement and a defined coverage hole to mitigate interference. Transmit power may be defined based on channel quality. Transmit power may be defined based on a signal-to-noise ratio at an access terminal. The transmit power of neighboring access nodes also may be controlled by inter-access node signaling. | 02-12-2009 |
20090042595 | AUTONOMOUS ADAPTATION OF TRANSMIT POWER - Transmit power (e.g., maximum transmit power) may be defined based on the maximum received signal strength allowed by a receiver and a minimum coupling loss from a transmitting node to a receiver. Transmit power may be defined for an access node (e.g., a femto node) such that a corresponding outage created in a cell (e.g., a macro cell) is limited while still providing an acceptable level of coverage for access terminals associated with the access node. An access node may autonomously adjust its transmit power based on channel measurement and a defined coverage hole to mitigate interference. Transmit power may be defined based on channel quality. Transmit power may be defined based on a signal-to-noise ratio at an access terminal. The transmit power of neighboring access nodes also may be controlled by inter-access node signaling. | 02-12-2009 |
20090042596 | ADAPTATION OF TRANSMIT POWER BASED ON CHANNEL QUALITY - Transmit power (e.g., maximum transmit power) may be defined based on the maximum received signal strength allowed by a receiver and a minimum coupling loss from a transmitting node to a receiver. Transmit power may be defined for an access node (e.g., a femto node) such that a corresponding outage created in a cell (e.g., a macro cell) is limited while still providing an acceptable level of coverage for access terminals associated with the access node. An access node may autonomously adjust its transmit power based on channel measurement and a defined coverage hole to mitigate interference. Transmit power may be defined based on channel quality. Transmit power may be defined based on a signal-to-noise ratio at an access terminal. The transmit power of neighboring access nodes also may be controlled by inter-access node signaling. | 02-12-2009 |
20090046632 | METHOD AND APPARATUS FOR INTERFERENCE MANAGEMENT - In some aspect restricted access nodes are assigned to a designated common channel while access terminals that are in active communication with a macro access node may selectively be assigned to the designated channel. In some aspect an access terminal associated with macro access node may perform a handoff to a different carrier when the access terminal is in the vicinity of a coverage area of a restricted access node. In some aspect an access terminal associated with a macro access node may perform a handoff to a different carrier based on location information. In some aspect access to a restricted access node is controlled based on policy and/or based on operation of an access terminal associated with the restricted access node. | 02-19-2009 |
20090047931 | METHOD AND APPARATUS FOR WIRELESS ACCESS CONTROL - In some aspect restricted access nodes are assigned to a designated common channel while access terminals that are in active communication with a macro access node may selectively be assigned to the designated channel. In some aspect an access terminal associated with macro access node may perform a handoff to a different carrier when the access terminal is in the vicinity of a coverage area of a restricted access node. In some aspect an access terminal associated with a macro access node may perform a handoff to a different carrier based on location information. In some aspect access to a restricted access node is controlled based on policy and/or based on operation of an access terminal associated with the restricted access node. | 02-19-2009 |
20090059855 | DISTRIBUTED HIERARCHICAL SCHEDULING IN AN AD HOC NETWORK - An ad hoc network with distributed hierarchical scheduling is disclosed. In one aspect, stations in a network mesh detect interfering neighbor stations and form interference lists. Stations transmit their interference lists. Scheduling stations schedule allocations for child stations in response to interference lists, received remote allocations, or a combination thereof. Coordination messages are transmitted including frame structure, allocations, and interference lists, among others. In another aspect, an ad hoc mesh network may be organized into a tree topology. In an example wireless backhaul network, this matches traffic flow. Distributed, hierarchical scheduling is provided where parents schedule communication with children while respecting already scheduled transmissions to/from interferers and to/from interferers of their respective children. Procedures to construct interference constraints for distributed, hierarchical scheduling are described, resulting in efficient scheduling and reuse in an ad hoc wireless network, without centralized scheduling. Various other aspects are also disclosed. | 03-05-2009 |
20090080386 | INTERFERENCE MANAGEMENT EMPLOYING FRACTIONAL TIME REUSE - Interference that occurs during wireless communication may be managed through the use of fractional reuse and other techniques. In some aspects fractional reuse may relate to HARQ interlaces, portions of a timeslot, frequency spectrum, and spreading codes. Interference may be managed through the use of a transmit power profile and/or an attenuation profile. Interference also may be managed through the use of power management-related techniques. | 03-26-2009 |
20090080499 | INTERFERENCE MANAGEMENT EMPLOYING FRACTIONAL CODE REUSE - Interference that occurs during wireless communication may be managed through the use of fractional reuse and other techniques. In some aspects fractional reuse may relate to HARQ interlaces, portions of a timeslot, frequency spectrum, and spreading codes. Interference may be managed through the use of a transmit power profile and/or an attenuation profile. Interference also may be managed through the use of power management-related techniques. | 03-26-2009 |
20090081970 | INTERFERENCE MANAGEMENT EMPLOYING FRACTIONAL FREQUENCY REUSE - Interference that occurs during wireless communication may be managed through the use of fractional reuse and other techniques. In some aspects fractional reuse may relate to HARQ interlaces, portions of a timeslot, frequency spectrum, and spreading codes. Interference may be managed through the use of a transmit power profile and/or an attenuation profile. Interference also may be managed through the use of power management-related techniques. | 03-26-2009 |
20090082026 | INTERFERENCE MANAGEMENT UTILIZING POWER CONTROL - Interference that occurs during wireless communication may be managed through the use of fractional reuse and other techniques. In some aspects fractional reuse may relate to HARQ interlaces, portions of a timeslot, frequency spectrum, and spreading codes. Interference may be managed through the use of a transmit power profile and/or an attenuation profile. Interference also may be managed through the use of power management-related techniques. | 03-26-2009 |
20090082027 | INTERFERENCE MANAGEMENT UTILIZING HARQ INTERLACES - Interference that occurs during wireless communication may be managed through the use of fractional reuse and other techniques. In some aspects fractional reuse may relate to HARQ interlaces, portions of a timeslot, frequency spectrum, and spreading codes. Interference may be managed through the use of a transmit power profile and/or an attenuation profile. Interference also may be managed through the use of power management-related techniques. | 03-26-2009 |
20090086861 | INTERFERENCE MANAGEMENT UTILIZING POWER AND ATTENUATION PROFILES - Interference that occurs during wireless communication may be managed through the use of fractional reuse and other techniques. In some aspects fractional reuse may relate to HARQ interlaces, portions of a timeslot, frequency spectrum, and spreading codes. Interference may be managed through the use of a transmit power profile and/or an attenuation profile. Interference also may be managed through the use of power management-related techniques. | 04-02-2009 |
20090092080 | CENTRALIZED MOBILE ACCESS POINT ACQUISITION - Providing for centralized access management to diverse types of mobile network access points is described herein. By way of example, network components can generate a system determination list (SDL) for a user terminal (UT) that is customized to access capabilities of the UT and/or current position of the UT. The SDL can be employed by the UT to determine which network access points to camp on, handoff to, or the like. The network components can include a network database that maintains UT subscriber and related home Femto cell information, or such information can be maintained at a network operator's home location register. In some aspects, the information can be obtained over the air from the UT or from a base station serving the UT. | 04-09-2009 |
20090092081 | DISTRIBUTED MOBILE ACCESS POINT ACQUISITION - Providing for distributed access point management for access to a mobile network is described herein. By way of example, an interface application maintained at a Femto cell base station (BS) can facilitate initial power up and/or acquisition for a Femto user terminal (UT). Upon start-up, a bootstrap process is utilized by the Femto cell to provision the UT with an SDL establishing at least one BS as high priority within a particular geographic area (GEO). Thus, when the Femto UT is within the GEO, the UT is more likely to acquire, camp on and/or handoff to the preferred BS. When outside the GEO, a serving access point can provision the Femto UT OTA with a custom SDL suited to another GEO having a different high priority access point. By implementing access point management at distributed access points, expensive network equipment can be mitigated or avoided. | 04-09-2009 |
20090092111 | CONTROL OF WIRELESS TRANSMISSION BASED ON NODE STATUS - Transmission by a first node may be controlled based on a status of a second node. The status of the second node may indicate, for example, whether the second node will be communicating with the first node. Thus, if it is determined based on the status of the second node that the second node may not be communicating with the first node, transmissions by the first node may be temporarily disabled until there is a change in status, and vice versa. | 04-09-2009 |
20090093232 | PROVISIONING COMMUNICATION NODES - Provisioning and access control for communication nodes involves assigning identifiers to sets of nodes where the identifiers may be used to control access to restricted access nodes that provide certain services only to certain defined sets of nodes. In some aspects provisioning a node may involve providing a unique identifier for sets of one or more nodes such as restricted access points and access terminals that are authorized to receive service from the restricted access points. Access control may be provided by operation of a restricted access point and/or a network node. In some aspects, provisioning a node involves providing a preferred roaming list for the node. In some aspects, a node may be provisioned with a preferred roaming list through the use of a bootstrap beacon. | 04-09-2009 |
20090094351 | ACCESS TERMINAL CONFIGURATION AND ACCESS CONTROL - Provisioning and access control for communication nodes involves assigning identifiers to sets of nodes where the identifiers may be used to control access to restricted access nodes that provide certain services only to certain defined sets of nodes. In some aspects provisioning a node may involve providing a unique identifier for sets of one or more nodes such as restricted access points and access terminals that are authorized to receive service from the restricted access points. Access control may be provided by operation of a restricted access point and/or a network node. In some aspects, provisioning a node involves providing a preferred roaming list for the node. In some aspects, a node may be provisioned with a preferred roaming list through the use of a bootstrap beacon. | 04-09-2009 |
20090094680 | ACCESS MANAGEMENT FOR WIRELESS COMMUNICATION - Provisioning and access control for communication nodes involves assigning identifiers to sets of nodes where the identifiers may be used to control access to restricted access nodes that provide certain services only to certain defined sets of nodes. In some aspects provisioning a node may involve providing a unique identifier for sets of one or more nodes such as restricted access points and access terminals that are authorized to receive service from the restricted access points. Access control may be provided by operation of a restricted access point and/or a network node. In some aspects, provisioning a node involves providing a preferred roaming list for the node. In some aspects, a node may be provisioned with a preferred roaming list through the use of a bootstrap beacon. | 04-09-2009 |
20090098872 | SYSTEM AND METHOD TO FACILITATE ACQUISITION OF ACCESS POINT BASE STATIONS - Devices and methods are provided for facilitating selection and acquisition of an access point (AP) base station via implementation of a system selection file that may include a preferred roaming list (PRL), a public land mobile network (PLMN) database, or the like. The selection attempts may be limited to specific preferred systems, such as, for example, the AP base station. The system selection file includes identification parameters of the preferred systems. In one embodiment, the identification parameters include at least one of a system identifier (SID) and a network identifier (NID) for a given one of the systems. | 04-16-2009 |
20090129341 | SOURCE INITIATED COMMUNICATION HANDOVER - In a handover operation an access terminal is handed over from a source access point to a target access point. To facilitate efficient identification of a target access point, a handover operation may be initiated by the target access point. A candidate frequency search also may be invoked to confirm that an access terminal identified by a target access point for a handover is in the vicinity of the target access point. A source access point may verify whether an access terminal is in a vicinity of a target access point to determine whether to perform a handover operation. A source access point may handle potential ambiguity between several target access points by sending handover commands to each of these target access points. An access terminal also may assist in the determination of whether to perform a handover operation. | 05-21-2009 |
20090135754 | INTERFERENCE MANAGEMENT IN A WIRELESS COMMUNICATION SYSTEM USING OVERHEAD CHANNEL POWER CONTROL - Interference that occurs during wireless communication may be managed by reducing the power level of an overhead channel during a call. A method, apparatus and medium of communication determine an optimized reduced power level for an overhead channel of an unplanned access point to an associated access terminal during a call therebetween. The overhead channel is transmitted according to the optimized reduced power level resulting in a decrease in interference as seen by neighboring unplanned access points. | 05-28-2009 |
20090135790 | INTERFACE MANAGEMENT IN WIRELESS COMMUNICATION SYSTEM USING HYBRID TIME REUSE - Interference that occurs during wireless communication may be managed by hybrid time reuse. A method, apparatus amend medium of communication determines one or more time reuse patterns of respective one or more unplanned access points. A second time reuse pattern that is less interfering with the one or more time reuse patterns is selected. Signals are transmitted according to the second time reuse pattern from a second unplanned access point to an associated access terminal. | 05-28-2009 |
20090135796 | INTERFACE MANAGEMENT IN A WIRELESS COMMUNICATION SYSTEM USING SUBFRAME TIME REUSE - Interference that occurs during wireless communication may be managed by subframe time reuse. A method, apparatus amend medium of communication determines interfering subframe gating sequences. The transmission gating in a home access point is adjusted by determining a first gating sequence from a first unplanned access point. A second gating sequence is selected based on the first gating sequence, wherein the first and second gating sequences are non-interfering. Signals are transmitted according to the second gating sequence from a second unplanned access point to an associated access terminal. | 05-28-2009 |
20090137221 | INTERFERENCE MANAGEMENT IN A WIRELESS COMMUNICATION SYSTEM USING BEAM AND NULL STEERING - Interference that occurs during wireless communication may be managed through the use of beam and null steering techniques. A method, apparatus and medium of communication determine an interference direction of a non-associated access terminal generating an interfering signal. Transmitted and received signals are then transceived away from the interference direction. | 05-28-2009 |
20090137241 | INTERFERENCE MANAGEMENT IN A WIRELESS COMMUNICATION SYSTEM USING ADAPTIVE PATH LOSS ADJUSTMENT - Interference that occurs during wireless communication may be managed by determination and application of an adaptive path loss adjustment. A method, apparatus and medium of communication determine a level of excess received interference based at least in part on out-of-cell interference (Ioc). The path loss is adjusted by an additional path loss on an uplink signal when the level of excess received interference exceeds an interference target that would cause a Rise-over-Thermal (RoT) metric to exceed stable communication. | 05-28-2009 |
20090137249 | FAVORING ACCESS POINTS IN WIRELESS COMMUNICATIONS - Systems and methodologies are described that facilitate applying offsets and/or selectable hysteresis values to favor access points in cell reselection. In measuring and ranking surrounding access points in reselection, offsets can be applied to favorable access points to facilitate cell reselection thereto. The offset can positively affect measurements, and thus ranking as well, in some cases. Negative offsets can also be applied to lower measurements (and thus ranking) of some access points. Moreover, hysteresis values can be applied in measuring current cells to prevent frequent reselection. The hysteresis values can be selected based on a type of the current cell or related access point to expand the coverage area where desired. Thus, where the current access point is favorable, a larger hysteresis can be added to measurements related to the current access point. | 05-28-2009 |
20090138603 | PROTECTION FOR DIRECT LINK SETUP (DLS) TRANSMISSIONS IN WIRELESS COMMUNICATIONS SYSTEMS - Certain embodiments of the present disclosure provide techniques and apparatus for establishing direct link setup (DLS) connections between stations in a wireless local area network (WLAN). The DLS connections may be established in a manner that helps avoid collisions with transmissions from hidden stations. | 05-28-2009 |
20090154372 | METHOD AND APPARATUS FOR RESOLVING BLINDED-NODE PROBLEMS IN WIRELESS NETWORKS - Techniques for resolving blinded-node problems are described herein. One aspect operates on the physical (PHY) layer only, which a second layer operates on the medium access control (MAC) layer. Both aspects involve having a node stop processing a data packet that is not destined for it so as to be able to reserve its resources to detect control and other packets. An apparatus for implementing the techniques are also disclosed. | 06-18-2009 |
20090161636 | FLEXIBLE CONTROL CHANNELS FOR UNPLANNED WIRELESS NETWORKS - A wireless node configured to communicate with a remote node using a timeslot structure. The timeslot structure includes a plurality of data channels and a plurality of control channels, wherein each of the control channels comprises a plurality of control units. The wireless node is further configured to assign any one of a plurality of control messages for the data channels to any one of the control units. | 06-25-2009 |
20090191859 | NETWORK USING ENCODED TRANSMISSIONS AND FORWARDING - A first network node may include a wireless transmitter, a wireless receiver, a user interface and a controller. The controller may be configured to cause information that is received by the receiver to be delivered to the user interface, if that information is encoded to be delivered to the user interface of the network node. The controller may also be configured to cause information to be transmitted in a format encoded for a first target node by the transmitter, if that information is encoded to be forwarded by the network node. The controller may also be configured to cause information from the user interface to be transmitted in a format encoded for a second target node by the transmitter. Related processes are also disclosed. | 07-30-2009 |
20090203320 | ASYNCHRONOUS INTERFERENCE MANAGEMENT BASED ON TIMESLOT OVERLAP - Interference management may involve the transmission of interference management messages by wireless nodes that are experiencing interference and appropriate responses by potential interferers that receive the interference management messages. Upon detection of interfering signals, a wireless node may determine whether the signals are from a synchronous interferer or an asynchronous interferer. Based on this determination, the wireless node may use different types of signals to manage the different types of interference. In some aspects, asynchronous interference management may involve backing-off in frequency and/or in time in response to interference signals. Asynchronous interference management may involve transmitting back-off beacons to clear potential interferers from a given carrier. Here, the transmission of beacons by a wireless node may be metered to facilitate fair sharing of communication resources. | 08-13-2009 |
20090203322 | ASYNCHRONOUS INTERFERENCE MANAGEMENT - Interference management may involve the transmission of interference management messages by wireless nodes that are experiencing interference and appropriate responses by potential interferers that receive the interference management messages. Upon detection of interfering signals, a wireless node may determine whether the signals are from a synchronous interferer or an asynchronous interferer. Based on this determination, the wireless node may use different types of signals to manage the different types of interference. In some aspects, asynchronous interference management may involve backing-off in frequency and/or in time in response to interference signals. Asynchronous interference management may involve transmitting back-off beacons to clear potential interferers from a given carrier. Here, the transmission of beacons by a wireless node may be metered to facilitate fair sharing of communication resources. | 08-13-2009 |
20090203372 | SYNCHRONOUS AND ASYNCHRONOUS INTERFERENCE MANAGEMENT - Interference management may involve the transmission of interference management messages by wireless nodes that are experiencing interference and appropriate responses by potential interferers that receive the interference management messages. Upon detection of interfering signals, a wireless node may determine whether the signals are from a synchronous interferer or an asynchronous interferer. Based on this determination, the wireless node may use different types of signals to manage the different types of interference. In some aspects, asynchronous interference management may involve backing-off in frequency and/or in time in response to interference signals. Asynchronous interference management may involve transmitting back-off beacons to clear potential interferers from a given carrier. Here, the transmission of beacons by a wireless node may be metered to facilitate fair sharing of communication resources. | 08-13-2009 |
20090219851 | ADDING HYBRID ARQ TO WLAN PROTOCOLS WITH MAC BASED FEEDBACK - A wireless node having a MAC layer configured to coordinate access to a shared wireless medium using a MAC protocol, a PHY layer configured to provide an interface to the shared wireless medium, and a HARQ layer between the MAC and PHY layers, the HARQ layer being configured to support HARQ using the MAC protocol. | 09-03-2009 |
20090238101 | NETWORK TOPOLOGY FORMATION - Systems and techniques are disclosed relating to wireless communications. The systems and techniques involve wireless communications wherein a module or communications device is configured to listen for a period of time for an incoming pilot signal from a remote terminal that exceeds a threshold power level for the purpose of acquiring such incoming pilot signal and operating under control of the remote terminal, and operating independently of the remote terminal if such pilot signal is not detected within the period of time, such independent operation including transmitting a pilot signal. | 09-24-2009 |
20090238114 | CELL SELECTION AND RESELECTION IN DEPLOYMENTS WITH HOME NODEBS - Systems and methodologies are described that facilitate cell search, selection, and reselection within a wireless communication network that includes a home node base station (home nodeB). A user equipment (UE) can detect a home nodeB and communicate such identification to a macro network that includes at least one node base station (nodeB). The detected home nodeB and nodeB can be hierarchically structured in order to prioritize connectivity with the home nodeB over the nodeB. Such prioritization can be implemented by broadcasting home nodeB parameters and macro nodeB parameters having identification information therewith. | 09-24-2009 |
20090252100 | METHODS AND APPARATUS FOR REVERSE LINK ACKNOWLEDGEMENT IN A WIRELESS LOCAL AREA NETWORK (WLAN) - Methods and apparatus for reverse link acknowledgement in a wireless local area network. A method includes receiving, at a first node, a data communication over a common channel, the data communication being decodable by other nodes. The method also includes determining transmission resources from the data communication, wherein the transmission resources are different for each node, and transmitting a response over the common channel using the determined transmission resources. An apparatus includes a transmitter configured to transmit to a plurality of nodes a data communication over the common channel, and a receiver configured to receive responses from the plurality of nodes, wherein each response was sent using different transmission resources determined from the data communication. | 10-08-2009 |
20090252110 | METHOD AND APPARTUS FOR EXTENDED REVERSE DIRECTION GRANT IN A WIRELESS LOCAL AREA NETWORK (WLAN) - Methods and apparatus for extended reverse direction grant in a WLAN. In an aspect, a method includes transmitting data within a transmit interval to a plurality of the nodes, wherein the data comprises a first indicator. The method also includes receiving, in response to the first indicator, a data transmission from at least one of the nodes, wherein the data transmission was transmitted using a selected transmission resource and is received within the transmit interval. In an aspect, an apparatus includes a receiver to receive, within a time interval, first data over a common channel, the first data being decodable by other nodes. The apparatus also includes a controller to determine whether the first data comprises a first indicator, and a transmitter to transmit second data within the time interval using selected transmission resources, if the first data comprises the first indicator. | 10-08-2009 |
20090252143 | METHODS AND APPARATUS FOR DELAYED BLOCK ACKNOWLEDGEMENT IN A WIRELESS LOCAL AREA NETWORK (WLAN) - Methods and apparatus for delayed block acknowledgments in a WLAN. In an aspect, a method is provided for communication with one or more nodes. The method includes transmitting to the one or more nodes a block comprising data and a first bit indicating no acknowledgements for the data are to be transmitted from the one or more nodes. The method also includes determining whether a selected time location within a transmit time duration has been reached, wherein if the selected time location has been reached, transmitting to the one or more nodes a second bit indicating that the one or more nodes are to transmit one or more acknowledgements, respectively, for the data. The method also includes receiving at least one acknowledgment for the data within a remaining portion of the transmit time duration. | 10-08-2009 |
20090257361 | METHODS AND APPARATUS FOR DETERMINING COMMUNICATION LINK QUALITY - Methods and apparatus for determining the quality of a communication link transmitting a specified packet type are disclosed. The methodology includes configuring first packets, which share transmission characteristics with a specific packet type, such as a Voice over IP packet, such that the first packets experience similar communication link treatment as the specific packet type. The first packets are then transmitted over the communication link to a quality monitoring server located near a termination equipment of the particular communication link. Second packets, which are transmitted by the server in response to the first packets, are received and evaluated to determine the quality of the communication link based on characteristics of the second packets. Corresponding apparatus are also disclosed. | 10-15-2009 |
20090285113 | AUTONOMOUS CARRIER SELECTION FOR FEMTOCELLS - A carrier for a femtocell is selected from a set of carriers available to femtocells. The femto node determines a preference order for the set and measures received signal strength (RSS) for each carrier. The femto node determines a least interference carrier from the set based on the RSS for each carrier, then defines a selected carrier for the femtocell by comparing the RSS of the least interference carrier to the RSS of other carriers in the set. The selected carrier may have a RSS larger than or equal to the RSS of the least interference carrier offset by a predefined margin. The comparisons may be performed in the preference order. The set available to femto nodes may be a subset of all carriers available to a combination of femtocells and macrocells and one or more of the carriers available to femtocells also may be a carrier available to macrocells. | 11-19-2009 |
20090286496 | SELF CALIBRATION OF DOWNLINK TRANSMIT POWER - Transmit power (e.g., maximum transmit power) may be defined based on the maximum received signal strength allowed by a receiver and a total received signal strength from transmitting nodes at the receiver. Transmit power may be defined for an access node (e.g., a femto node) such that a corresponding outage created in a cell (e.g., a macro cell) is limited while still providing an acceptable level of coverage for access terminals associated with the access node. An access node may autonomously adjust its transmit power based on channel measurement and a defined coverage hole to mitigate interference and perform a self-calibration process. | 11-19-2009 |
20090286545 | TRANSMIT POWER SELECTION FOR USER EQUIPMENT COMMUNICATING WITH FEMTO CELLS - Transmit power for a user equipment (UE) is set by a Home NodeB (HNB) in response to interference at a nearby macrocell. The HNB monitors an interference level to the macrocell from a UE communicating with the HNB. An acceptable transmit power for the UE is determined by the HNB in response to the interference level. A power change indicator is transmitted from the HNB to the UE to adjust the transmit power of the UE. In some cases, the interference may be estimated from a busy indicator from the macrocell and the HNB sends a modified version of the busy indicator to the UE to adjust the transmit power of the UE. In other cases, the HNB estimates a path loss for the UE based on received signal power from the macrocell and signals a transmit power change to the UE, if needed, based on the estimated path loss. | 11-19-2009 |
20090310561 | MOBILE DEVICES WITH FEMTO CELL FUNCTIONALITY - Aspects describe communications environments in which femtocell capability is provided to devices within the communications network. A non-femto enabled device and/or a femto enabled device can communicate with a femto enabled device in the same geographical area for femto-enabled peer-to-peer communication. Two non-femto enabled devices can be provided femto functionality through utilization of a femto enabled device, which operates as a hub between the two devices. Other aspects relate to enhanced position determination, adaptive coverage enhancement, local mobile networks, open access femtocells without a backhaul, and local broadcast of media though utilization of femto enabled devices. | 12-17-2009 |
20090312017 | MOBILE DEVICES WITH FEMTO CELL FUNCTIONALITY - Aspects describe communications environments in which femtocell capability is provided to devices within the communications network. A non-femto enabled device and/or a femto enabled device can communicate with a femto enabled device in the same geographical area for femto-enabled peer-to-peer communication. Two non-femto enabled devices can be provided femto functionality through utilization of a femto enabled device, which operates as a hub between the two devices. Other aspects relate to enhanced position determination, adaptive coverage enhancement, local mobile networks, open access femtocells without a backhaul, and local broadcast of media though utilization of femto enabled devices. | 12-17-2009 |
20090323646 | METHOD AND APPARATUS FOR WIRLESS LAN (WLAN) DATA MULTIPLEXING - Embodiments addressing MAC processing for efficient use of high throughput systems are disclosed. Data associated with at least one MAC ID can be aggregated into a single byte stream. The single byte stream can be formatted into MAC PDUs and then muxed. The muxed MAC PDUs can then be transmitted on a single MAC frame. Muxing of the MAC PDUs can be based on the priority of the MAC PDUs or other criteria. A MAC header can comprise information about the muxed PDUs, such as a pointer, that identifies the location of the MAC PDUs within the MAC frame. A MAC frame can contain partial MAC PDUs. The transmitted muxed MAC PDUs can be retransmitted, and an acknowledgment or feedback scheme may be used to help manage the transmission of the protocol data units. | 12-31-2009 |
20100002570 | Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system - A multi-antenna transmitting entity transmits data to a single- or multi-antenna receiving entity using (1) a steered mode to direct the data transmission toward the receiving entity or (2) a pseudo-random transmit steering (PRTS) mode to randomize the effective channels observed by the data transmission across the subbands. The PRTS mode may be used to achieve transmit diversity or spatial spreading. For transmit diversity, the transmitting entity uses different pseudo-random steering vectors across the subbands but the same steering vector across a packet for each subband. The receiving entity does not need to have knowledge of the pseudo-random steering vectors or perform any special processing. For spatial spreading, the transmitting entity uses different pseudo-random steering vectors across the subbands and different steering vectors across the packet for each subband. Only the transmitting and receiving entities know the steering vectors used for data transmission. | 01-07-2010 |
20100015921 | WIRELESS COMMUNICATION SYSTEMS WITH FEMTO CELLS - Systems and methods for avoiding interference signals sent by a femto node in a wireless communication system are described herein. In one embodiment, the method comprises establishing a communication link between a first transceiver and a base station. The base station is configured to provide wireless communication coverage within a first area. The method further comprises detecting by the first transceiver a femto signal generated by the femto node. The femto node is configured to provide wireless communication coverage within a second area to at least a second transceiver. The second transceiver is different from the first transceiver. The second area is smaller than the first area. The method further comprises identifying information indicative of a signal strength of the femto signal. The method further comprises transmitting a first message in response to detecting the femto signal, the first message comprising information identifying the femto node and the information indicative of the signal strength of the femto signal to the base station over a first frequency carrier. The method further comprises receiving a second message from the base station. The second message comprises information indicative of an instruction to communicate over a second carrier frequency. The method further comprises communicating with the base station over a second frequency carrier in response to the second message. | 01-21-2010 |
20100029274 | SYSTEM AND METHOD FOR CELL SEARCH AND SELECTION IN A WIRELESS COMMUNICATION SYSTEM - Systems and methodologies are described herein that facilitate improved cell search and selection in a wireless communication system. For example, a terminal as described herein can utilize one or more Closed Subscriber Group (CSG)-specific offset and/or hysteresis parameters as described herein to increase the amount of time on which the terminal is allowed to camp on a desirable cell. Additionally, specialized reselection timing can be employed as described herein to increase a delay associated with selecting a Home Node B (HNB) or Home Evolved Node B (HeNB) cell, thereby reducing power consumption associated with rapid cell reselection operations in a densely populated network environment. Further, a two-step reselection process can be performed as described herein in the context of selecting a frequency for cell reselection, thereby mitigating the effects of rapid reselection between cells and/or frequencies due to CSG cell prioritization. | 02-04-2010 |
20100035601 | BATTERY EFFICIENT METHOD TO SEARCH FOR PREFERRED FEMTOCELL - Mobile user equipment (MUE) can be enabled to search for and camp on a preferred node, such as a home base node (HBN), in a battery-efficient manner even when currently camped on another node, such as a macro base node (MBN). When the MBN provides good channel quality, slow rate background intra- and inter-frequency searches can discover the preferred HBN that would otherwise not be discovered or would consume excessive power with continual searching. When channel quality is fair, slow rate background inter-frequency searches can result in timely switching to the preferred HBN. Location hints that indicate proximity of the preferred HBN can be used to trigger slow rate background searches. Neighboring cell searching of neighbor cell listing (NCL) when in channel quality is fair or poor are maintained to prepare for call reselections to available node. | 02-11-2010 |
20100048212 | GENERATING ACCESS POINT BEACONS AT DIFFERENT POWER LEVELS - An access point generates beacons at different power levels at different times to provide an acceptable tradeoff between coverage area associated with the beacons and outage experienced at nearby access terminals. For example, a femto access point may transmit beacons at a relatively low power for a relatively long period of time to reduce interference at nearby access terminals that are being served by a macro access point. The femto access point may then transmit beacons at a relatively high power for a relatively short period of time to enable nearby access terminals to receive the beacons. Also, a given transmit chain may be used to provide frequency hopping of high and low power beacons. | 02-25-2010 |
20100048221 | SWITCHING BETWEEN DIFFERENT TRANSMIT/RECEIVE PULSE SHAPING FILTERS FOR LIMITING ADJACENT CHANNEL INTERFERENCE - A femtocell base station includes a transmitter that transmits downlink signals to a mobile station, a receiver that receives uplink signals from the mobile station, a standard transmit pulse-shaping filter, and a narrower transmit pulse-shaping filter that limits the bandwidth of the downlink signals to a greater extent than the standard transmit pulse-shaping filter. The femtocell base station also includes a standard receive pulse-shaping filter and a narrower receive pulse-shaping filter. The femtocell base station is configured to switch between the standard transmit pulse-shaping filter and the narrower transmit pulse-shaping filter, and to switch between the standard receive pulse-shaping filter and the narrower receive pulse-shaping filter. A mobile station may switch from a standard transmit pulse-shaping filter to a narrower transmit pulse-shaping filter to limit uplink interference. A mobile station may switch from a narrower transmit pulse-shaping filter to a standard transmit pulse-shaping filter to achieve a higher data rate. | 02-25-2010 |
20100067371 | USING IDENTIFIER MAPPING TO RESOLVE ACCESS POINT IDENTIFIER AMBIGUITY - Ambiguity (e.g., confusion) associated with access point identifiers may be resolved by querying candidate target access points and/or by using historical records indicative of one or more access points that the access point has previously accessed. For example, messages may be sent to access points that are assigned the same identifier to cause the access points to monitor for a signal from an access terminal that received the identifier from a target access point. The target access point may then be identified based on any responses that indicate that a signal was received from the access terminal In some aspects the access points subject to being queried may be selected using a tiered priority. In addition, it may be determined based on prior handoffs of a given access terminal that when that access terminal reports a given identifier, the access terminal usually ends up being handed-off to a particular access point. Accordingly, a mapping may be maintained for that access terminal that maps the identifier to that access point so that the mapping may be used to resolve any future confusion associated with the use of that identifier by that access terminal. | 03-18-2010 |
20100069072 | USING SIGNAL MONITORING TO RESOLVE ACCESS POINT IDENTIFIER AMBIGUITY - Ambiguity (e.g., confusion) associated with access point identifiers may be resolved by querying candidate target access points and/or by using historical records indicative of one or more access points that the access point has previously accessed. For example, messages may be sent to access points that are assigned the same identifier to cause the access points to monitor for a signal from an access terminal that received the identifier from a target access point. The target access point may then be identified based on any responses that indicate that a signal was received from the access terminal. In some aspects the access points subject to being queried may be selected using a tiered priority. In addition, it may be determined based on prior handoffs of a given access terminal that when that access terminal reports a given identifier, the access terminal usually ends up being handed-off to a particular access point. Accordingly, a mapping may be maintained for that access terminal that maps the identifier to that access point so that the mapping may be used to resolve any future confusion associated with the use of that identifier by that access terminal. | 03-18-2010 |
20100091719 | METHODS AND APPARATUS FOR SYSTEM SELECTION IN A MULTIMODE WIRELESS DEVICE - Methods and apparatus for system selection in a multimode wireless device are disclosed. The method and apparatus afford selection of a wireless communication system access technology from a number of wireless system access technologies supported by a wireless device. Selection is accomplished by storing identification information concerning access technologies pertaining to a first group of wireless system access technologies, such as 3GPP2, in a search database, which concerns the priority of access technologies pertaining to another group of access technologies, such as 3GPP. Selection of a preferred wireless communication system access technology from one of the wireless access technology groups is then based on the identification information stored in the search database. | 04-15-2010 |
20100118801 | AUTONOMOUS DOWNLINK CODE SELECTION FOR FEMTO CELLS - Downlink codes may be chosen autonomously for femtocells in a wireless communication environment. Downlink transmissions are received from Home NodeBs that are neighbors of the femtocell and macrocell base stations near the femtocell. The downlink transmissions are evaluated to recognize a first set of detected downlink codes that each have a pilot energy above a predetermined detection threshold. An optimal downlink code is selected for use in connection with serving user equipment of the femtocell. The optimal downlink code is based upon the first set of detected downlink codes and selected as a downlink code from a set of downlink codes reserved for the femtocell. The optimal downlink code may be an available downlink code with a smallest amount of detected energy or a randomly selected downlink code from the available downlink codes. | 05-13-2010 |
20100120367 | SYSTEMS AND METHODS OF REDUCING INTERFERENCE - A system and method of reducing interference on a communication channel between an access terminal and a serving cell or node are disclosed. A cooperation request may be sent to an interfering cell or node to reduce and/or mitigate interference on the communication channel caused by the interfering cell or node. The interfering cell or node may perform beamforming, may intermittently transmit its wireless signal, or may move at least one antenna to mitigate and/or reduce interference on the communication channel. | 05-13-2010 |
20100135234 | WIRELESS COMMUNICATION SYSTEMS WITH FEMTO NODES - Systems and methods for performing a handoff of an access terminal from a macro node to a femto node are disclosed. To direct handoff of the access terminal, an identity of the femto node is determined A femto node provided may be indentified by at least a difference between the offset of a first pilot signal and the offset of a second pilot signal. | 06-03-2010 |
20100150038 | APPARATUS AND METHOD FOR WIRELESS COMMUNICATION VIA AT LEAST ONE OF DIRECTIONAL AND OMNI-DIRECTION ANTENNAS - Techniques for using at least one of omni-directional and directional antennas for communication are described. A station may be equipped antenna elements selectable for use as an omni-directional antenna or one or more directional antennas. The station may select the omni-directional antenna or a directional antenna for use for communication based on various factors such as, e.g., whether the location or direction of a target station for communication is known, whether control frames or data frames are being exchanged, etc. | 06-17-2010 |
20100150077 | APPARATUS AND METHOD FOR WIRELESS COMMUNICATION VIA AT LEAST ONE OF DIRECTIONAL AND OMNI-DIRECTION ANTENNAS - Techniques for using at least one of omni-directional and directional antennas for communication are described. A station may be equipped antenna elements selectable for use as an omni-directional antenna or one or more directional antennas. The station may select the omni-directional antenna or a directional antenna for use for communication based on various factors such as, e.g., whether the location or direction of a target station for communication is known, whether control frames or data frames are being exchanged, etc. | 06-17-2010 |
20100165857 | METHODS AND APPARATUS FOR DETERMINING QUALITY OF SERVICE IN A COMMUNICATION SYSTEM - Methods and apparatus for determining the quality of service of a network are disclosed. A disclosed methodology for determining quality of service for a network includes determining at least two metrics reflective of network parameters in at least two different protocol layers of the communication network. The metrics are then compared with respective threshold values, and quality of service for the network is determined based on the comparison of the metrics with the respective threshold values. Corresponding apparatus executing the methodology are also disclosed. | 07-01-2010 |
20100182929 | TRANSMISSION CONTROL FOR WIRELESS COMMUNICATION NETWORKS - Techniques for controlling transmissions in wireless communication networks are described. In one aspect, transmission control for a mesh network may be achieved by ranking mesh points or stations in the mesh network. In one design, the rank of a first station in the mesh network may be determined. At least one station of lower rank than the first station in the mesh network may be identified. At least one transmission parameter for the at least one station of lower rank may be set by the first station. At least one transmission parameter value may be selected for each station based on the rank, QoS requirements, amount of traffic, and/or achievable data rate for that station and may be sent (e.g., via a probe response message) to the station. | 07-22-2010 |
20100195585 | METHODS AND SYSTEMS FOR SCHEDULING AMONG NODES FOR A DATA SLOT IN WIRELESS COMMUNICATION NETWORKS - A method of scheduling among a plurality of nodes may include performing a first sequence of steps followed by a second sequence of steps, each sequence including a Tx step followed by a Rx step. During the Tx step, a node may send a REQ signal containing a request to transmit. During the Rx step, another node may receive the request signal, and respond by sending a confirmation signal indicating an acceptation or a declination of the REQ signal. The REQ signal includes a unicast portion and a broadcast portion. In an uplink mode of the slot, the responding nodes may use the unicast portion of the REQ signal to send supplemental information, in addition to the indication of the acceptation or the declination of the REQ signal. | 08-05-2010 |
20100198953 | METHODS AND SYSTEMS FOR MANAGING CONTENTION AMONG NODES IN WIRELESS COMMUNICATION SYSTEMS - A method of managing contention in a wireless network is described. The wireless network may include an access router and a plurality of access terminals connectable to the base station. The method may include designating a data slot as a downlink slot or an uplink slot, and sending a signal from the access router to the access terminals to indicate the designation of the data slot. The access router may determine whether the data slot should be designated as a downlink slot or an uplink slot by assessing information such QoS (quality of service) requirements contained in a REQ message received from one or more of the access terminals, and information regarding buffer level received from one or more of the access terminals. | 08-05-2010 |
20100203891 | METHOD AND APPARATUS FOR FACILITATING A HAND-IN OF USER EQUIPMENT TO FEMTO CELLS - Aspects are disclosed for facilitating a hand-in to a femto cell. An identifier is assigned to a femto cell in which the identifier is based on a scrambling parameter and a timing parameter. A relationship between the identifier and the femto cell is then communicated. In another embodiment, a user equipment report is received, which includes attributes related to a signal broadcast by a femto cell. An identifier associated with the femto cell is ascertained from an attribute included in the report. The femto cell is then identified based on the identifier. In a further embodiment, a timing parameter is received, and a scrambling parameter is set. A signal including the scrambling parameter is then broadcast according to an offset related to the timing parameter. In yet another embodiment, a femto cell is detected during an active call. An identifier associated with the femto cell is then ascertained and reported. | 08-12-2010 |
20100279686 | PROXIMITY BASED ACCESS CONTROL - A method for reducing interference to wireless communication devices is disclosed. A proximity of a wireless communication device to a base station is determined. The proximity of the wireless communication device is compared with a proximity threshold and based on the comparison, access to a femtocell may be granted to a restricted/non-CSG (closed subscriber group) wireless communication device. The method also includes causing a registration response to be sent to the wireless communication device based on the comparison. | 11-04-2010 |
20100285737 | GAIN CONTROL OPTIMIZING SINR AND DATA RATE FOR WIRELESS REPEATER - A method for controlling gain in a wireless repeater implementing echo cancellation determines a signal-to-interference-noise-ratio (SINR) of the input and output signals of the repeater and adjusts the gain of the repeater to optimize an achievable data rate and a coverage area of the repeater. The repeater gain may be decreased to increase the data rate and increase the achievable SINR of the output signal while the coverage area is reduced. Alternately, the repeater gain may be increased to decrease the data rate and decrease the achievable SINR of the output signal while the coverage area is increased. | 11-11-2010 |
20100291865 | REPEATER COMMUNICATION USING INSERTED LOW POWER SEQUENCES - A method for providing repeater communication in a wireless repeater deployed in a multi-repeater environment includes inserting a message signal into the transmit signal of the repeater. The message signal may be a unique or quasi-unique low power spreading sequence uniquely identifying the repeater from other repeaters in the environment. The message signal may also contain information relating to the operational characteristics of the repeater. The message signal may be detected by another repeater or by an end-user wireless communication device. | 11-18-2010 |
20100304745 | REDUCING FREQUENT HANDOFFS OF A WIRELESS COMMUNICATION DEVICE - A method for reducing frequent idle handoffs of a wireless communication device is described. A registration request is received by a base station or a femto access point from the wireless communication device. The number of registration requests received from the wireless communication device are counted while the registration timer is running. It is determined that frequent handoffs are happening when the number of registration requests received is greater than a registration threshold. A transmit power of a femto access point is adjusted if the number of registration requests received indicates that frequent handoffs are happening. | 12-02-2010 |
20100315979 | METHOD AND APPARATUS FOR SCHEDULING IN A WIRELESS COMMUNICATION NETWORK - Techniques to efficiently schedule and serve stations in a wireless network are described. An access point may aggregate stations with flows carrying traffic having similar characteristics, e.g., VoIP flows. The access point may schedule these stations together in an overall service period. The access point may serve each station in a respective service period within the overall service period. The access point may send a multi poll frame at the start of the overall service period to indicate the start time and/or service period for each station. Each station may decide to power down until its start time. The service periods for the stations may overlap one another. The service period for each station may cover an initial transmission as well as additional transmission and/or retransmission. If additional transmission and/or retransmission are not needed for a given station, then the next station may be served right away. | 12-16-2010 |
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 |
20110194530 | Systems and Methods of Advertising Handoff - A heterogeneous communication system enables femto Access Points (APs) to advertise handoff related information on a first Radio Access Technology (RAT), such as for receipt by a multi mode mobile device (e.g., a mobile device capable of operation on a plurality of RATs), wherein the handoff related information permits the multi mode mobile device to identify the femto access point on a second RAT. The multi mode mobile device can be connected to a macro node (e.g., a macro base station, an evolved Base Node, etc.) using the first RAT via a Wireless Wide Area Network (WWAN) air-interface (e.g., 1×, HRPD, eHRPD), while independently reading/decoding overhead messages on the second RAT for connection thereto (e.g., connection to the femto access point on the second RAT.) The second RAT can be another WWAN, a Wireless Local Access Network (WLAN) or a Personal Access Network. | 08-11-2011 |
20110207456 | Systems, Methods and Apparatus Configured to Manage Neighbor Cell Lists - According to some wireless network standards the size of a neighbor cell list is restricted to a maximum size. The limited size of a neighbor cell list may not reflect the realities of a wireless network deployment, especially for deployments including numerous femto cells clustered in close proximity. Accordingly, as the concentration of macro cells and/or femto cells in an area increases, there lies a challenge to identify and communicate neighbor lists to user devices that reflect the arrangement of a particular portion of the deployment and the needs of the user devices. Various systems, methods and apparatus described herein are configured to provide a user device or a group of user devices a neighbor cell list that includes neighbor cell identifiers chosen from a candidate list. | 08-25-2011 |
20110237261 | TRANSMITTING SUBSTITUTE RESELECTION PARAMETERS - A cell reselection parameter is transmitted on one carrier frequency for a defined period of time to cause access terminals operating on that carrier frequency to more aggressively search for access points on at least one other carrier frequency. For example, a femto cell operating on one carrier frequency may transmit a broadcast channel including a cell reselection parameter such as Sintersearch on another carrier frequency that is used by a macro cell. Here, the value of the cell reselection parameter (e.g., Sintersearch) is chosen so that the access terminals will more aggressively conduct inter-frequency searches. In addition, the cell reselection parameter is transmitted for a period of time that ensures that a nearby access terminal will receive the parameter during its wakeup interval. | 09-29-2011 |
20110275361 | RESTRICTING ACCESS POINT TRANSMISSIONS - Transmissions by a first access point (e.g., a femto cell) are restricted upon detecting an access terminal in the vicinity of the first access point in the event the access terminal is communicating with a second access point (e.g., a macro cell). Upon detection of such an access terminal, the access terminal restricts transmission (e.g., beacon transmission) on a downlink carrier frequency on which the access terminal is actively receiving information from the second access point. This restriction of transmission by the access point may involve, for example, temporarily reducing transmit power, reducing the periodicity of transmission, or ceasing transmission. | 11-10-2011 |
20110299417 | MULTIPLE FREQUENCY BAND OPERATION IN WIRELESS NETWORKS - Embodiments for bandwidth allocation methods, detecting interference with other systems, and/or redeploying in alternate bandwidth are described. Higher bandwidth channels may be deployed at channel boundaries ( | 12-08-2011 |
20110300851 | METHOD AND APPARATUS FOR WIRELESS DISTRIBUTED COMPUTING - Systems and methods for distributed computing between communication devices. A femto node is treated as a trusted extension of a user equipment and performs processing tasks on behalf of the user equipment. The femto node is also treated as a trusted extension of network servers and performs services on behalf of the network servers. Tasks are thus distributed between the network servers, the femto node and one or more user equipments. The tasks include processing data, filtering incoming messages, and caching network service information. | 12-08-2011 |
20110300852 | METHOD AND APPARATUS FOR WIRELESS DISTRIBUTED COMPUTING - Systems and methods for distributed computing between communication devices. A femto node is treated as a trusted extension of a user equipment and performs processing tasks on behalf of the user equipment. The femto node is also treated as a trusted extension of network servers and performs services on behalf of the network servers. Tasks are thus distributed between the network servers, the femto node and one or more user equipments. The tasks include processing data, filtering incoming messages, and caching network service information. | 12-08-2011 |
20120039210 | METHOD AND APPARATUS FOR INCREASING SPECTRUM USE EFFICIENCY IN A MESH NETWORK - Mesh Network Access Points (APs) points, including gateways and routers, are deployed over a geographic area. The APs monitor the communication channel for other carriers and transmit accordingly. The APs selectively co-transmit when other carriers are sensed, if the efficiency of the mesh network will improve. APs select a transmission rate based on observed carrier-to-interference ratios. APs use directional antennas to increase carrier-to-interference ratios and spectral efficiency. AP transmit schedules are adaptable and adjusted according to observed carrier-to-interference measurements. | 02-16-2012 |
20120039265 | CONTROLLING ACCESS POINT TRANSMIT POWER BASED ON RECEIVED ACCESS TERMINAL MESSAGES - Transmit power for an access point is controlled based on information received by the access point. For example, an access point may employ one or more algorithms that use messages received from nearby access terminals to maintain an acceptable tradeoff between providing an adequate coverage area for access point transmissions and mitigating interference that these transmissions cause at nearby access terminals. Here, the access point may employ a network listen-based algorithm upon initialization of the access terminal to provide preliminary transmit power control until sufficient information is collected for another transmit power control algorithm (e.g., an access terminal assisted algorithm). Also, the access terminal may employ an active access terminal protection scheme to mitigate interference the access point may otherwise cause to a nearby access terminal that is in active communication with another access point. | 02-16-2012 |
20120039296 | METHOD AND APPARATUS FOR INCREASING SPECTRUM USE EFFICIENCY IN A MESH NETWORK - Mesh Network Access Points (APs) points, including gateways and routers, are deployed over a geographic area. The APs monitor the communication channel for other carriers and transmit accordingly. The APs selectively co-transmit when other carriers are sensed, if the efficiency of the mesh network will improve. APs select a transmission rate based on observed carrier-to-interference ratios. APs use directional antennas to increase carrier-to-interference ratios and spectral efficiency. AP transmit schedules are adaptable and adjusted according to observed carrier-to-interference measurements. | 02-16-2012 |
20120039340 | METHOD AND APPARATUS FOR INCREASING SPECTRUM USE EFFICIENCY IN A MESH NETWORK - Mesh Network Access Points (APs) points, including gateways and routers, are deployed over a geographic area. The APs monitor the communication channel for other carriers and transmit accordingly. The APs selectively co-transmit when other carriers are sensed, if the efficiency of the mesh network will improve. APs select a transmission rate based on observed carrier-to-interference ratios. APs use directional antennas to increase carrier-to-interference ratios and spectral efficiency. AP transmit schedules are adaptable and adjusted according to observed carrier-to-interference measurements. | 02-16-2012 |
20120057455 | METHOD AND APPARATUS FOR INCREASING SPECTRUM USE EFFICIENCY IN A MESH NETWORK - Mesh Network Access Points (APs) points, including gateways and routers, are deployed over a geographic area. The APs monitor the communication channel for other carriers and transmit accordingly. The APs selectively co-transmit when other carriers are sensed, if the efficiency of the mesh network will improve. APs select a transmission rate based on observed carrier-to-interference ratios. APs use directional antennas to increase carrier-to-interference ratios and spectral efficiency. AP transmit schedules are adaptable and adjusted according to observed carrier-to-interference measurements. | 03-08-2012 |
20120057494 | METHOD AND APPARATUS FOR INCREASING SPECTRUM USE EFFICIENCY IN A MESH NETWORK - Mesh Network Access Points (APs) points, including gateways and routers, are deployed over a geographic area. The APs monitor the communication channel for other carriers and transmit accordingly. The APs selectively co-transmit when other carriers are sensed, if the efficiency of the mesh network will improve. APs select a transmission rate based on observed carrier-to-interference ratios. APs use directional antennas to increase carrier-to-interference ratios and spectral efficiency. AP transmit schedules are adaptable and adjusted according to observed carrier-to-interference measurements. | 03-08-2012 |
20120094660 | METHOD AND APPARATUS FOR PROVIDING ENHANCED INTERFERENCE MANAGEMENT AT RESTRICTED ACCESS POINTS - Methods and apparatuses are provided that facilitate providing access point measurements to restricted access points. Restricted access points can lessen restrictions to allow devices to register with the restricted access point for providing measurements thereto. Additionally or alternatively, access point measurements can be provided to a minimization of drive tests (MDT) server for providing to the restricted access points. Thus, restricted access points can obtain the access point measurements for performing enhanced interference management or other functionality based at least in part on the measurements. | 04-19-2012 |
20120115488 | SIGNAL TRANSMISSION PATTERN - An access point transmits signals (e.g., a cell reselection beacon) on a carrier frequency according to a multi-power level transmission pattern. Signals are transmitted at a high power level for a first defined period of time (e.g., between 4-7 milliseconds) and at a low power level for a second defined period of time (e.g., between 58-65 milliseconds). | 05-10-2012 |
20120124088 | APPARATUS AND METHOD FOR MOBILE SEARCH BASED ON SEARCH TRIGGERS - An apparatus and method for mobile search using search triggers including establishing a search state for a mobile search; defining a search scheduler based on the search state; determining to collect a search trigger for the search scheduler based on the search state; updating the search state using the collected search trigger and in accordance with the search scheduler; and performing a search for a search type based on the updated search state and in accordance with the search scheduler. | 05-17-2012 |
20120127899 | METHOD AND SYSTEM FOR PROVIDING BEAMFORMING FEEDBACK IN WIRELESS COMMUNICATION SYSTEMS - Techniques to support beamforming for stations in a wireless network are described. A station may support beamforming with implicit or explicit feedback by having capabilities to transmit and receive sounding frames, responding to training request by sending a sounding frame, and responding to request for explicit feedback. In one explicit beamforming embodiment, the station may send a first frame with an explicit feedback request and may also send a Null Data Packet (NDP) having at least one training field but no data field. The station may receive a second frame with explicit feedback, which may be derived based on the NDP. The station may derive steering information based on explicit feedback and may then send a steered frame with beamforming based on the steering information. Other aspects, embodiments, and features are also claimed and described. | 05-24-2012 |
20120142392 | MULTI-STAGE TRANSMIT POWER CONTROL SCHEME FOR ACCESS POINT - Transmit power for an access point is controlled based on information received by the access point. For example, an access point may employ one or more algorithms that use messages received from nearby access terminals to maintain an acceptable tradeoff between providing an adequate coverage area for access point transmissions and mitigating interference that these transmissions cause at nearby access terminals. Here, the access point may employ a network listen-based algorithm upon initialization of the access terminal to provide preliminary transmit power control until sufficient information is collected for another transmit power control algorithm (e.g., an access terminal assisted algorithm). Also, the access terminal may employ an active access terminal protection scheme to mitigate interference the access point may otherwise cause to a nearby access terminal that is in active communication with another access point. | 06-07-2012 |
20120185419 | DETERMINING A DYNAMIC USER PROFILE INDICATIVE OF A USER BEHAVIOR CONTEXT WITH A MOBILE DEVICE - Methods, apparatuses and articles of manufacture for use in a mobile device to determine whether a dynamic user profile is to transition from a first state to a second state based, at least in part, on one or more sensed indicators. The dynamic user profile may be indicative of one or more current inferable user behavior contexts for a user co-located with the mobile device. The mobile device may transition a dynamic user profile from a first state to a second state, in response to a determination that the dynamic user profile is to transition from the first state to the second state, and operatively affect one or more functions performed, at least in part, by the mobile device based, at least in part, on the transition of the dynamic user profile to the second state. | 07-19-2012 |
20120188973 | SCHEDULING WITH REVERSE DIRECTION GRANT IN WIRELESS COMMUNICATION SYSTEMS - Systems and methodologies are described that facilitate increased communication channel bandwidth efficiency in association with scheduled time periods that allocate channel access to particular stations. According to various aspects, systems and methods are described that facilitate providing and/or utilizing reverse direction grants in connection with scheduled channel access. Such systems and/or method can mitigate an amount of unused channel access time after a station completes data transmission prior to an end of the allocated period. | 07-26-2012 |
20120213181 | TRANSMIT DIVERSITY AND SPATIAL SPREADING FOR AN OFDM-BASED MULTI-ANTENNA COMMUNICATION SYSTEM - A multi-antenna transmitting entity transmits data to a single- or multi-antenna receiving entity using (1) a steered mode to direct the data transmission toward the receiving entity or (2) a pseudo-random transmit steering (PRTS) mode to randomize the effective channels observed by the data transmission across the subbands. For transmit diversity, the transmitting entity uses different pseudo-random steering vectors across the subbands but the same steering vector across a packet for each subband. The receiving entity does not need to have knowledge of the pseudo-random steering vectors or perform any special processing. For spatial spreading, the transmitting entity uses different pseudo-random steering vectors across the subbands and different steering vectors across the packet for each subband. Only the transmitting and receiving entities know the steering vectors used for data transmission. Other aspects, embodiments, and features are also claimed and disclosed. | 08-23-2012 |
20120220310 | METHOD AND APPARATUS FOR CREATING A FINGERPRINT FOR A WIRELESS NETWORK - The disclosure is directed to a wireless communication device and method for using the device. The wireless communications device may be used by accessing information in memory, the information relating to a first communications network. The information, along with one or more reference signals from a second communications network, is used to determine whether the wireless communications device is in the vicinity of the first communications network. | 08-30-2012 |
20120254100 | SYSTEMS, METHODS, AND APPARATUSES FOR CLASSIFYING USER ACTIVITY USING TEMPORAL COMBINING IN A MOBILE DEVICE - Components, methods, and apparatuses are provided for determining activity likelihood function values for an activity classification for two or more past epochs based, at least in part, on signals from one or more sensors of a mobile device. A method may comprise, for each of a plurality of activity classifications, determining activity likelihood function values for each of the plurality of activity classifications for two or more past epochs. The activity likelihood function values may be based on signals from one or more sensors of a mobile device. The method may also include combining the activity likelihood function values to determine a likelihood function for an activity classification at a present epoch. The method may also include inferring a present activity of a user co-located with the mobile device to be one of the activity classifications based on the determined likelihood functions for the activity classifications at the present epoch. | 10-04-2012 |
20120263137 | HIGH SPEED MEDIA ACCESS CONTROL AND DIRECT LINK PROTOCOL - Techniques for MAC processing for efficient use of high throughput systems that may be backward compatible with various types of legacy systems are disclosed. In one aspect, a data frame is formed comprising a common portion for transmission in a format receivable by various stations, such as access points and remote stations. The data frame also comprises a dedicated portion, formatted for transmission to a specified remote station. In another aspect, the common portion is unsteered, and the dedicated portion is steered. In another aspect, an access point schedules an allocation in response to a data indication included in a common portion of a data frame transmitted from one remote station to another. In another aspect, a first station transmits a reference to a second station, which measures the reference and generates feedback therefrom. | 10-18-2012 |
20120265717 | LEARNING SITUATIONS VIA PATTERN MATCHING - Example methods, apparatuses, or articles of manufacture are disclosed herein that may be utilized, in whole or in part, to facilitate or support one or more operations or techniques for machine learning of situations via pattern matching or recognition. | 10-18-2012 |
20120303360 | PRESERVING AUDIO DATA COLLECTION PRIVACY IN MOBILE DEVICES - Techniques are disclosed for using the hardware and/or software of the mobile device to obscure speech in the audio data before a context determination is made by a context awareness application using the audio data. In particular, a subset of a continuous audio stream is captured such that speech (words, phrases and sentences) cannot be reliably reconstructed from the gathered audio. The subset is analyzed for audio characteristics, and a determination can be made regarding the ambient environment. | 11-29-2012 |
20130035893 | METHODS, DEVICES, AND APPARATUSES FOR ACTIVITY CLASSIFICATION USING TEMPORAL SCALING OF TIME-REFERENCED FEATURES - Components, methods, and apparatuses are provided that may be used to obtain a plurality of time-referenced features extracted from signals received from one or more inertial sensors of a mobile device, wherein the time-referenced features are provided according to heterogeneous time scales. The time-referenced features are combined over a decision window to infer an activity of a user co-located with the mobile device. | 02-07-2013 |
20130070715 | METHOD AND APPARATUS FOR AN AD-HOC WIRELESS COMMUNICATIONS SYSTEM - An IBSS that allows token passing for round-robin service of QoS flows is disclosed (an RRBSS). The RRBSS permits low-latency, reduced contention, distributed scheduling useful in any ad hoc network, but particularly suitable for high data rates. Distributed scheduled access is provided for flows through a round-robin token passing service discipline. STAs follow a round-robin order, or list, and are able to communicate with round-robin transmit opportunities during a defined period. Each STA in the list transmits a respective token to transfer access to the shared medium to the next STA in the RR List. Techniques are disclosed to add and remove STAs to the sequence, establish connectivity lists (receive and forward), and maintain other sequence parameters such as bandwidth management and TXOP duration. Various other aspects are also disclosed. | 03-21-2013 |
20130080457 | DISCOVERING AND AUTOMATICALLY SIZING A PLACE OF RELEVANCE - One or more mobile devices make measurements while moving along a path. Each measurement may comprise a specific group of identifiers of wireless transmitters, and strengths of corresponding wireless signals. A set of measurements are made in a sequence along a path, and the subsets of the measurements are identified for satisfying a test on a value of a measure of similarity of measurements included in the subset. A new place of relevance is identified, by comparing the just-described subsets of the measurements with similar subsets of additional measurements (e.g. by clustering). Alternatively, a known place of relevance (e.g. having a label) is identified, by comparing the just-described subsets of the measurements with pre-computed model of measurements. Also, the just-described subsets of the measurements may be compared with corresponding subsets of measurements of another path, e.g. to identify common portions therein. | 03-28-2013 |
20130107748 | METHODS AND DEVICES FOR INTERWORKING OF WIRELESS WIDE AREA NETWORKS AND WIRELESS LOCAL AREA NETWORKS OR WIRELESS PERSONAL AREA NETWORKS | 05-02-2013 |
20130157578 | APPARATUS AND METHOD FOR WIRELESS COMMUNICATION VIA AT LEAST ONE OF DIRECTIONAL AND OMNI-DIRECTION ANTENNAS - Techniques for using at least one of omni-directional and directional antennas for communication are described. A station may be equipped antenna elements selectable for use as an omni-directional antenna or one or more directional antennas. The station may select the omni-directional antenna or a directional antenna for use for communication based on various factors such as, e.g., whether the location or direction of a target station for communication is known, whether control frames or data frames are being exchanged, etc. | 06-20-2013 |
20130191518 | METHOD AND APPARATUS FOR AUTOMATIC SERVICE DISCOVERY AND CONNECTIVITY - Apparatus and methods for automatic service discovery and connectivity include acts of or components for retrieving service metadata associated with one or more service devices from a connectivity entity, wherein the service metadata comprises connectivity parameters, and configuring one or more links with at least one of the one or more service devices based on the service metadata. Further, the apparatus and methods may include acts of or components for using a service available from the one or more service devices through the one or more links. | 07-25-2013 |
20130230038 | HIGH SPEED MEDIA ACCESS CONTROL AND DIRECT LINK PROTOCOL - Techniques for MAC processing for efficient use of high throughput systems that may be backward compatible with various types of legacy systems are disclosed. In one aspect, a data frame is formed comprising a common portion for transmission in a format receivable by various stations, such as access points and remote stations. The data frame also comprises a dedicated portion, formatted for transmission to a specified remote station. In another aspect, the common portion is unsteered, and the dedicated portion is steered. In another aspect, an access point schedules an allocation in response to a data indication included in a common portion of a data frame transmitted from one remote station to another. In another aspect, a first station transmits a reference to a second station, which measures the reference and generates feedback therefrom. | 09-05-2013 |
20130235761 | METHODS AND APPARATUSES FOR PAGING IN HETEROGENEOUS NETWORKS - Wireless communication in a heterogeneous network may be facilitated by establishing connections with femto nodes based on page notifications from macro nodes to user equipment (UE). A UE in idle mode may monitor paging resources provided by a macro node, discover presence of a femto node based on signals received from the femto node, and establish a communicative connection with the femto node based on a page notification received from the macro node over the paging resources. | 09-12-2013 |
20130242916 | SCHEDULING WITH REVERSE DIRECTION GRANT IN WIRELESS COMMUNICATION SYSTEMS - Systems and methodologies are described that facilitate increased communication channel bandwidth efficiency in association with scheduled time periods that allocate channel access to particular stations. According to various aspects, systems and methods are described that facilitate providing and/or utilizing reverse direction grants in connection with scheduled channel access. Such systems and/or method can mitigate an amount of unused channel access time after a station completes data transmission prior to an end of the allocated period. | 09-19-2013 |
20130287043 | HIGH SPEED MEDIA ACCESS CONTROL - Embodiments disclosed herein for MAC processing for efficient use of high throughput systems and that may be backward compatible with various types of legacy systems. In one aspect, a data transmission structure comprises a consolidated poll and one or more frames transmitted in accordance with the consolidated poll. In another aspect, a Time Division Duplexing (TDD) data transmission structure comprises a pilot, a consolidated poll, and zero or more access point to remote station frames in accordance with the consolidated poll. In one aspect, frames are transmitted sequentially with no or substantially reduced interframe spacing. In another aspect, a guard interframe spacing may be introduced between frames transmitted from different sources, or with substantially different power levels. In another aspect, a single preamble is transmitted in association with one or more frames. In another aspect, a block acknowledgement is transmitted subsequent to the transmission of one or more sequential frames. | 10-31-2013 |
20130318584 | LEARNING INFORMATION ON USAGE BY A USER, OF ONE OR MORE DEVICE(S), FOR CUMULATIVE INFERENCE OF USER'S SITUATION - After authentication, one or more messages are generated by one or more devices that are operatively coupled via a communications network to a computer. Based on receipt of user input in a module in a device, a message transmitted by each device (in reliance on the authentication) includes information that is normally internal to the device and indicative of interaction of a user with the device. For example, the message may include an identifier of the device and internal information in the form of an identifier of the module (hardware and/or software), with which the user is interacting. Based on one or more such messages, at least one processor in the computer determines and stores in memory, a state of the user indicative of the user's situation. The user's state may be used in any manner, e.g. to trigger a function in an application or to start a new application. | 11-28-2013 |
20140045495 | SYSTEM AND METHOD FOR CELL SEARCH AND SELECTION IN A WIRELESS COMMUNICATION SYSTEM - Systems and methodologies are described herein that facilitate improved cell search and selection in a wireless communication system. For example, a terminal as described herein can utilize one or more Closed Subscriber Group (CSG)-specific offset and/or hysteresis parameters as described herein to increase the amount of time on which the terminal is allowed to camp on a desirable cell. Additionally, specialized reselection timing can be employed as described herein to increase a delay associated with selecting a Home Node B (HNB) or Home Evolved Node B (HeNB) cell, thereby reducing power consumption associated with rapid cell reselection operations in a densely populated network environment. Further, a two-step reselection process can be performed as described herein in the context of selecting a frequency for cell reselection, thereby mitigating the effects of rapid reselection between cells and/or frequencies due to CSG cell prioritization. | 02-13-2014 |
20140064173 | STANDBY TIME IMPROVEMENTS FOR STATIONS IN A WIRELESS NETWORK - A method includes receiving, at a station, a first delivery traffic indication message (DTIM) assigned to a first delivery interval. The first DTIM is configured to indicate whether group-addressed traffic is scheduled for delivery during a beacon interval. The first delivery interval is larger than a second delivery interval associated with a second DTIM. The method further includes receiving the group-addressed traffic during the beacon interval. | 03-06-2014 |
20140122378 | RULES ENGINE AS A PLATFORM FOR MOBILE APPLICATIONS - Disclosed are systems and methods for providing a rules engine as a platform within a portable electronic device. In one embodiment, a rules engine platform is provided within a portable electronic device by receiving a plurality of rules for one or more modules of the portable electronic device. Additionally, the rules engine platform can receive one or more samples from one or more of the modules within the portable electronic device. The rules engine platform identifies and evaluates one or more relevant rules based on the received sample. The rules engine platform can then determine an action to provide to other modules of the portable electronic device. The rules engine platform may be configured to optimize the performance and power consumption of the portable electronic device. | 05-01-2014 |
20140135004 | MULTI-STAGE TRANSMIT POWER CONTROL SCHEME FOR ACCESS POINT - Transmit power for an access point is controlled based on information received by the access point. For example, an access point may employ one or more algorithms that use messages received from nearby access terminals to maintain an acceptable tradeoff between providing an adequate coverage area for access point transmissions and mitigating interference that these transmissions cause at nearby access terminals. Here, the access point may employ a network listen-based algorithm upon initialization of the access terminal to provide preliminary transmit power control until sufficient information is collected for another transmit power control algorithm (e.g., an access terminal assisted algorithm). Also, the access terminal may employ an active access terminal protection scheme to mitigate interference the access point may otherwise cause to a nearby access terminal that is in active communication with another access point. | 05-15-2014 |
20140135021 | SYSTEMS, METHODS AND APPARATUS CONFIGURED TO MANAGE NEIGHBOR CELL LISTS - According to some wireless network standards the size of a neighbor cell list is restricted to a maximum size. The limited size of a neighbor cell list may not reflect the realities of a wireless network deployment, especially for deployments including numerous femto cells clustered in close proximity. Accordingly, as the concentration of macro cells and/or femto cells in an area increases, there lies a challenge to identify and communicate neighbor lists to user devices that reflect the arrangement of a particular portion of the deployment and the needs of the user devices. Various systems, methods and apparatus described herein are configured to provide a user device or a group of user devices a neighbor cell list that includes neighbor cell identifiers chosen from a candidate list. | 05-15-2014 |
20140143579 | SEQUENTIAL FEATURE COMPUTATION FOR POWER EFFICIENT CLASSIFICATION - Disclosed is an apparatus and method for power efficient processor scheduling of features. In one embodiment, features may be scheduled for sequential computing, and each scheduled feature may receive a sensor data sample as input. In one embodiment, scheduling may be based at least in part on each respective feature's estimated power usage. In one embodiment, a first feature in the sequential schedule of features may be computed and before computing a second feature in the sequential schedule of features, a termination condition may be evaluated. | 05-22-2014 |
20140172424 | PRESERVING AUDIO DATA COLLECTION PRIVACY IN MOBILE DEVICES - Techniques are disclosed for using the hardware and/or software of the mobile device to obscure speech in the audio data before a context determination is made by a context awareness application using the audio data. In particular, a subset of a continuous audio stream is captured such that speech (words, phrases and sentences) cannot be reliably reconstructed from the gathered audio. The subset is analyzed for audio characteristics, and a determination can be made regarding the ambient environment. | 06-19-2014 |
20140199998 | DISTRIBUTED MOBILE ACCESS POINT ACQUISITION - Providing for distributed access point management for access to a mobile network is described herein. By way of example, an interface application maintained at a Femto cell base station (BS) can facilitate initial power up and/or acquisition for a Femto user terminal (UT). Upon start-up, a bootstrap process is utilized by the Femto cell to provision the UT with an SDL establishing at least one BS as high priority within a particular geographic area (GEO). Thus, when the Femto UT is within the GEO, the UT is more likely to acquire, camp on and/or handoff to the preferred BS. When outside the GEO, a serving access point can provision the Femto UT OTA with a custom SDL suited to another GEO having a different high priority access point. By implementing access point management at distributed access points, expensive network equipment can be mitigated or avoided. | 07-17-2014 |
20140207727 | DETERMINING A DYNAMIC USER PROFILE INDICATIVE OF A USER BEHAVIOR CONTEXT WITH A MOBILE DEVICE - Methods, apparatuses and articles of manufacture for use in a mobile device to determine whether a dynamic user profile is to transition from a first state to a second state based, at least in part, on one or more sensed indicators. The dynamic user profile may be indicative of one or more current inferable user behavior contexts for a user co-located with the mobile device. The mobile device may transition a dynamic user profile from a first state to a second state, in response to a determination that the dynamic user profile is to transition from the first state to the second state, and operatively affect one or more functions performed, at least in part, by the mobile device based, at least in part, on the transition of the dynamic user profile to the second state. | 07-24-2014 |
20140219099 | METHOD AND APPARATUS FOR WIRELESS DISTRIBUTED COMPUTING - Systems and methods for distributed computing between communication devices. A femto node is treated as a trusted extension of a user equipment and performs processing tasks on behalf of the user equipment. The femto node is also treated as a trusted extension of network servers and performs services on behalf of the network servers. Tasks are thus distributed between the network servers, the femto node and one or more user equipments. The tasks include processing data, filtering incoming messages, and caching network service information. | 08-07-2014 |
20140235288 | SELF CALIBRATION OF DOWNLINK TRANSMIT POWER - Transmit power (e.g., maximum transmit power) may be defined based on the maximum received signal strength allowed by a receiver and a total received signal strength from transmitting nodes at the receiver. Transmit power may be defined for an access node (e.g., a femto node) such that a corresponding outage created in a cell (e.g., a macro cell) is limited while still providing an acceptable level of coverage for access terminals associated with the access node. An access node may autonomously adjust its transmit power based on channel measurement and a defined coverage hole to mitigate interference and perform a self-calibration process. | 08-21-2014 |
20140273972 | METHOD AND SYSTEM FOR RESTRICTED ACCESS CONFIGURATION OF ACCESS POINT BASE STATIONS - Devices and methods are provided for the controlling access to access point (AP) base stations. In particular, described herein are techniques for the automated configuration of AP base stations for restricted access. For example, the technique may involve receiving a contact list from an access terminal (AT) associated with the AP base station and a network operator. From the received contact list, saved contacts associated with the operator may be identified. The technique may further involve retrieving identifiers for the identified contacts, and generating an allowed user list from the identifiers, which may be used to configure the AP base station for restricted access. | 09-18-2014 |
20140307715 | METHOD AND APPARATUS FOR LOCATING A WIRELESS LOCAL AREA NETWORK IN A WIDE AREA NETWORK - The disclosure is directed to a mobile communication device that measures characteristics or attributes of a first communications network that vary according to physical location within that first communications network to create a fingerprint, or signature, of a location within the first communications network. When the fingerprint of the current location of the mobile device is created it can be compared to a known fingerprint associated with a second communication network to determine the mobile device's proximity to the second communications network. For example, the first communications network may be a CDMA wide area wireless communication network and the second communications network may be a 802.11 wireless LAN. | 10-16-2014 |
20140362740 | METHOD AND APPARATUS FOR ALLOCATION OF INFORMATION TO CHANNELS OF A COMMUNICATION SYSTEM - Methods and apparatus are described for improving the transmission of information over wireless communication channels. These techniques include determining available communication channels for transmitting information and determining possible physical layer packet sizes of the available channels. An information unit is partitioned into portions wherein the size of the portions are selected so as to match one of the physical layer packet sizes of the available communication channels. Another aspect is partitioning the information into a number of slices that correspond to the number of transmissions that occur during the information unit interval and assigning each partition to a corresponding transmission. The techniques can be used for various types of information, such as multimedia data, variable bit rate data streams, video data, or audio data. | 12-11-2014 |
20140376520 | INTERFACE MANAGEMENT IN WIRELESS COMMUNICATION SYSTEM USING HYBRID TIME REUSE - Interference that occurs during wireless communication may be managed by hybrid time reuse. A method, apparatus amend medium of communication determines one or more time reuse patterns of respective one or more unplanned access points. A second time reuse pattern that is less interfering with the one or more time reuse patterns is selected. Signals are transmitted according to the second time reuse pattern from a second unplanned access point to an associated access terminal. | 12-25-2014 |
20140378146 | INTERFERENCE MANAGEMENT UTILIZING POWER AND ATTENUATION PROFILES - Interference that occurs during wireless communication may be managed through the use of fractional reuse and other techniques. In some aspects fractional reuse may relate to HARQ interlaces, portions of a timeslot, frequency spectrum, and spreading codes. Interference may be managed through the use of a transmit power profile and/or an attenuation profile. Interference also may be managed through the use of power management-related techniques. | 12-25-2014 |
20150016427 | DELIVERY OF INFORMATION OVER A COMMUNICATION CHANNEL - Methods and apparatus are described for transmitting information units over a plurality of constant bit rate communication channel. The techniques include encoding the information units, thereby creating a plurality of data packets. The encoding is constrained such that the data packet sizes match physical layer packet sizes of the communication channel. The information units may include a variable bit rate data stream, multimedia data, video data, and audio data. The communication channels include CMDA channels, WCDMA, GSM channels, GPRS channels, and EDGE channels. | 01-15-2015 |
20150018042 | METHOD AND APPARATUS FOR PROVIDING ENHANCED INTERFERENCE MANAGEMENT AT RESTRICTED ACCESS POINTS - Methods and apparatuses are provided that facilitate providing access point measurements to restricted access points. Restricted access points can lessen restrictions to allow devices to register with the restricted access point for providing measurements thereto. Additionally or alternatively, access point measurements can be provided to a minimization of drive tests (MDT) server for providing to the restricted access points. Thus, restricted access points can obtain the access point measurements for performing enhanced interference management or other functionality based at least in part on the measurements. | 01-15-2015 |
20150038149 | RESTRICTING ACCESS POINT TRANSMISSIONS - Transmissions by a first access point (e.g., a femto cell) are restricted upon detecting an access terminal in the vicinity of the first access point in the event the access terminal is communicating with a second access point (e.g., a macro cell). Upon detection of such an access terminal, the access terminal restricts transmission (e.g., beacon transmission) on a downlink carrier frequency on which the access terminal is actively receiving information from the second access point. This restriction of transmission by the access point may involve, for example, temporarily reducing transmit power, reducing the periodicity of transmission, or ceasing transmission. | 02-05-2015 |