Patent application number | Description | Published |
20150296520 | Multi-SIM Acquisition Performance Improvement by Priority Modification in Partial Out-of-Service Conditions - Various embodiments for improving acquisition of services in multi-SIM mobile devices by using modified priorities for radio access technologies (RATs) in partial out-of-service conditions include determining when a first radio access technology (RAT) within a plurality of RATs begins to use a shared resource within the multi-SIM mobile device that is configured to be utilized by the plurality of RATs, determining whether a second RAT within the plurality of RATs was in-service or out of service at the time when the first RAT began using the shared resource, calculating a modified priority value for the second RAT in response to determining that the second RAT was in-service at the time, and determining an order for subsequent scanning for the services by the plurality of RATs based on the calculated modified priority value for the second RAT when the second RAT in-service at the time. | 10-15-2015 |
20150334578 | Using Client-Specific RGS To Improve Performance on Multi-SIM and Multi-RAT Devices - Various embodiments provide methods implemented in a mobile communication device (e.g., a multi-RAT communication device) for maintaining at least one separate RGS value for each of a plurality of RATs operating on the mobile communication device. Specifically, a device processor on the mobile communication device (e.g., a crystal oscillator manager) may maintain a separate, up-to-date RGS value for each of the plurality of RATs and may associate each of the plurality of RATs with their respective RGS values. By keeping track of the plurality of RATs' respective RGS values, the device processor may ensure that an appropriate RGS value is used to facilitate each RAT's individual operations, such as acquisition/re-acquisition operations, sleep scheduling calculations, and handover/inter-RAT measurement operations. As a result, various embodiments may improve the performance of each RAT and the overall performance of the mobile communication device. | 11-19-2015 |
Patent application number | Description | Published |
20100322336 | Beamforming to a Subset of Receive Antennas in a Wireless MIMO Communication System - In a method for controlling transmission of an information signal to a multiplicity of receive antennas associated with one or more receivers a steering matrix is developed using a subset of receive antennas, wherein the subset of receive antennas includes less than all of the multiplicity of receive antennas. Transmission of the information signal via a plurality of transmit antennas is controlled using the steering matrix. | 12-23-2010 |
20110026623 | Methods and Apparatus for WLAN Transmission - In a method for generating a physical layer (PHY) data unit for transmission via a communication channel, a first set of modulation coding schemes (MCSs) and a second set of MCSs that correspond to a number of spatial streams and a number of encoders are provided. The first set of MCSs correspond to a first channel bandwidth and the second set of MCSs correspond to a second channel bandwidth, and the first set of MCSs is different than the second set of MCSs. An MCS is selected from the first set of MCSs when the PHY data unit is to be transmitted using a channel having the first channel bandwidth, and the MCS is selected from the second set of MCSs when the PHY data unit is to be transmitted using a channel having the second channel bandwidth. Information bits are encoded using the number of encoders and according to the selected MCS, and the encoded information bits are parsed into the number of spatial streams. The encoded information bits are modulated according to the MCS, and a plurality of OFDM symbols are formed based on the modulated encoded information bits. | 02-03-2011 |
20110261860 | ANTENNA SELECTION AND TRAINING USING A SPATIAL SPREADING MATRIX FOR USE IN A WIRELESS MIMO COMMUNICATION SYSTEM - A wireless communication system and method uses a spatial spreading matrix to distribute the encoded spatial data streams to a number of transmit chains and further uses the spatial spreading matrix for antenna selection computation in a transmitter. The spatial spreading matrix is designed such that a receiver is able to know and utilize the spatial spreading matrix for computing transmission antenna selection, receiver antenna selection and joint transmission/receiving antenna selection. The use of this spatial spreading matrix for antenna selection computation provides increased accuracy in antenna selection for transmission of spatial data streams, where the number of spatial data streams is less than the number of transmit or receive chains between the transmitter and receiver, and the number of transmit or receive chains is less than the corresponding transmission or receiving antennas. | 10-27-2011 |
20110261895 | Calibration Correction for Implicit Beamforming In a Wireless MIMO Communication System - A transmitter beamforming technique for use in a MIMO wireless communication system determines a partial description of a reverse channel without determining a full dimensional description of the reverse channel. A correction matrix is developed from the partial description of the reverse channel and a description of the forward channel. The correction matrix is used to process signals to be transmitted via the forward channel, and a steering matrix is used to perform beamforming in the forward channel. | 10-27-2011 |
20110310827 | ALTERNATE FEEDBACK TYPES FOR DOWNLINK MULTIPLE USER MIMO CONFIGURATIONS - A method in a communication network includes obtaining descriptions of a plurality of communication channels each communication channel associated with a different one of a plurality of receivers; and generating a plurality of steering vectors, one for each of the plurality of receivers, using the descriptions of the plurality of communication channels; wherein each steering vector is used to transmit data to a corresponding one of the plurality receivers via a plurality of antennas and over a corresponding one of the communication channels simultaneously and wherein each steering vector is used to communicate data on a different one of the plurality of communication channels, and wherein each steering vector is generated to reduce interference on a corresponding communication channel caused by simultaneous transmission of data on other communication channels. | 12-22-2011 |
20120195391 | Physical Layer Frame Format for Long Range WLAN - In a method for generating a physical layer (PHY) data unit for transmission via a communication channel, a first preamble portion and a data portion of the data unit is generated. The first preamble portion includes one or more long training fields. The first preamble portion and the data portion are modulated using a plurality of orthogonal frequency division multiplexing (OFDM) symbols. Symbol duration of each OFDM symbol is at least 8 μs. The data unit is generated to include the plurality of OFDM symbols. | 08-02-2012 |
20120269231 | ANTENNA SELECTION AND TRAINING USING A SPATIAL SPREADING MATRIX FOR USE IN A WIRELESS MIMO COMMUNICATION SYSTEM - Channel sounding information is received by a first communication device during an antenna selection training procedure. Antenna selection computations are performed, and the computations (i) assume that a second communication device uses a first N | 10-25-2012 |
Patent application number | Description | Published |
20130317377 | Generative Model-Driven Resource-Efficient Monitoring in Body Sensor Networks - Body sensor networks (BSNs) and methods for monitoring an electrocardiogram using such BSNs include a base station that generates an ECG model and an output ECG signal for displaying on a display device, and a sensor platform in electrical communication with the base station. The sensor platform may be configured to receive a sensed ECG signal from one or more sensors, receive an instance of the ECG model, and produce a model ECG signal from the instance. The sensor platform compares the sensed ECG signal to the model ECG signal and, if a deviation of the sensed ECG signal from the model ECG signal exceeds a threshold, transmits deviation data describing the deviation to the base station module. The sensor platform module does not transmit any data to the base station if there is no such deviation. | 11-28-2013 |
20130343360 | Optimization of Polling Protocols in Sensor Networks - A communication-management method involves a recurring polling scheme, wherein network nodes are polled by a base station according to optimized and/or user-preferred polling intervals assigned to each network node. The polling interval assigned to a given node may be optimized to minimize and/or achieve user-preferred thresholds for energy consumption and latency associated with each network node in the sensor network. Optimized and/or user-preferred polling intervals may be constrained in accordance with various network performance considerations, for example, a recommended update interval for each network node, characteristics of the network nodes themselves, the duration of the timselots at which the network nodes are polled, and/or other network performance considerations. | 12-26-2013 |
20150081860 | IDENTIFYING AND TARGETING DEVICES BASED ON NETWORK SERVICE SUBSCRIPTIONS - Examples of the disclosure describe automatically associating devices of a user with a network service subscription of the user. The user has a subscription to services offered by an entity. Connection statistics for the devices to networks are generated and compared to criteria to determine whether any of the devices should be associated with the subscription of the user. After association, the devices are able to access networks and/or services associated with the subscription. | 03-19-2015 |
20150127939 | SHARING BASED ON SOCIAL NETWORK CONTACTS - Various technologies described herein pertain to sharing Wi-Fi credentials based upon relationships in a computer-implemented social network. At least one server computing device of a Wi-Fi credential sharing service receives an identifier from a mobile device and credentials for a Wi-Fi network from the mobile device. The identifier identifies a user of the mobile device. Moreover, the credentials for the Wi-Fi network are desirably shared by the user. Further, contacts of the user are retrieved from the social network. The credentials for the Wi-Fi network are retained in respective accounts of the contacts of the user from the social network. Further, an account of a contact includes credentials for Wi-Fi networks shared with the contact. | 05-07-2015 |
20150128219 | SHARED WI-FI USAGE - Various technologies described herein pertain to utilization of shared Wi-Fi. For instance, network access rights of a Wi-Fi network can be controlled by a mobile device of a point of contact for the Wi-Fi network. Moreover, utilization of a Wi-Fi network can be tracked and usage data indicative of historic utilization of the Wi-Fi network can be retained. Further, groups of users between whom Wi-Fi credentials are shared can be created. | 05-07-2015 |
Patent application number | Description | Published |
20140071895 | Network Selection Based On Customizing Crowdsourced Connection Quality Data - Embodiments select networks for connection based on application-specific quality scores. A request is received from an application for a network connection. Connection quality data for nearby networks is accessed. The connection quality data is derived from crowdsourced data. The connection quality data is adjusted based on a device context to produce an application-specific quality score for each of the networks. One or more of the networks are selected for connection based on the application-specific quality scores. In some embodiments, a single network connection endpoint is provided to the application to abstract connection management details from the application. | 03-13-2014 |
20150142590 | User-Specific Point-of-Sale Network Recommendations Based on Connection Quality Data - Embodiments recommend network coverage for a user based on a connection history of the user and connection quality data for networks. The connection history describes connection of the user over time via at least one mobile computing device to one or more networks. Connection quality data describing performance of the networks is obtained. Based on the connection history and the connection quality data, recommended network coverage for the user is defined. In some embodiments, a customized out-of-the-box experience (OOBE) for wireless services is provided for the user. | 05-21-2015 |
20150142946 | Applying Sequenced Instructions to Connect Through Captive Portals - Embodiments apply a set of sequenced instructions to connect to a network through a captive portal. A computing device detects a network access point and obtains the instruction set corresponding to the network access point. The instruction set is derived by a cloud service from crowdsourced data describing interactions between mobile computing devices and the network access point. Applying the instruction set includes performing actions such as navigating web pages to accept terms and conditions, provide user or device information, and more. | 05-21-2015 |
20150142980 | Context-Based Selection of Instruction Sets for Connecting Through Captive Portals - Embodiments personalize a set of network access points (NAPs) acting as captive portals for each user and/or user device. A cloud service, or the user device, accesses context describing the user device. The context identifies at least one NAP, and may include accounting data. One of the NAP is selected for connection based on the context, and an instruction set associated with the selected NAP is provided for replay by the user device to connect through the NAP. In some embodiments, instructions within the instruction set are also personalized to the user and/or user device based on the context. | 05-21-2015 |