WIRELESS COMMUNICATION CLUSTERING METHOD AND SYSTEM FOR COORDINATED MULTI-POINT TRANSMISSION AND RECEPTION
    2.
    发明申请
    WIRELESS COMMUNICATION CLUSTERING METHOD AND SYSTEM FOR COORDINATED MULTI-POINT TRANSMISSION AND RECEPTION 审中-公开
    用于协调多点传输和接收的无线通信集群方法和系统

    公开(公告)号:US20110200029A1

    公开(公告)日:2011-08-18

    申请号:US13123077

    申请日:2009-11-03

    IPC分类号: H04W4/00

    摘要: A method and system for identifying cell clusters within a coordinated multiple point wireless transmission network in order to reduce scheduling complexity while optimizing throughout and performance. The network includes a total number of cells served by corresponding base stations. The BSC divides the entire network of cells into clusters of cells and forwards this clustering information to all mobile devices. A cluster of cell candidates is a subset of the total number of cells within the network. The mobile device then provides to a base station controller the identity of a cluster of preferred cells selected from the cluster of cell candidates. The base station controller selects at least one base station located within the cluster of preferred cells to establish communication with the mobile device. A wireless connection is then established between the selected at least one base station and the mobile device.

    摘要翻译: 一种用于识别协调多点无线传输网络内的小区簇的方法和系统,以便在优化整个过程和性能的同时降低调度复杂度。 网络包括由相应基站服务的小区的总数。 BSC将整个蜂窝网络划分为小区群集,并将该群集信息转发给所有移动设备。 小区候选集群是网络中单元总数的一个子集。 然后,移动设备向基站控制器提供从小区候选集群中选择的优选小区的集群的标识。 基站控制器选择位于优选小区簇内的至少一个基站来建立与移动设备的通信。 然后在所选择的至少一个基站和移动设备之间建立无线连接。

    Wireless full-duplex system and method using sideband test signals

    公开(公告)号:US10374781B2

    公开(公告)日:2019-08-06

    申请号:US16045402

    申请日:2018-07-25

    摘要: A full-duplex transceiver is provided with componentry and methods for cancellation of nonlinear self-interference signals. The transceiver is capable of receiving an incoming radio-frequency signal that includes both a desired radio-frequency signal component and a self-interference component caused by the transceiver's own radio-frequency transmission. The transceiver demodulates the incoming radio-frequency signal to generate a first demodulated signal. The transceiver combines an analog corrective signal with the first demodulated signal to generate a second demodulated signal with reduced self-interference. The transceiver processes the first and second demodulated signals to determine a desired incoming baseband signal and to determine nonlinear components of the self-interference signal, such as nonlinearities introduced by the transceiver's power amplifier.

    SYSTEMS AND METHODS FOR COMMUNICATION RESOURCE USAGE CONTROL

    公开(公告)号:US20190166624A1

    公开(公告)日:2019-05-30

    申请号:US15824352

    申请日:2017-11-28

    摘要: A diversity channel for data transmission is obtained by communication equipment. The diversity channel indicates communication resources that are assigned to the communication equipment, and is from a set of diversity channels that are consistent with codewords of a linear code. The communication equipment also transmits a data transmission using the communication resources indicated by the diversity channel. The diversity channel assignment could be determined, by network equipment for example, and information that identifies the diversity channel could be transmitting to the communication equipment. Such information could be explicitly or implicitly signaled to the communication equipment. A set of diversity channels could be generated directly as codewords of one or more linear codes, or additional operations could be applied to such codewords, and possibly other information that is not generated using a code, to provide a diversity channel set.

    METHODS FOR SECURE DATA STORAGE
    7.
    发明申请

    公开(公告)号:US20190102569A1

    公开(公告)日:2019-04-04

    申请号:US16152284

    申请日:2018-10-04

    IPC分类号: G06F21/62 H04L9/08 H04L29/06

    摘要: Embodiments include a method for secure data storage including constructing an encryption key from a plurality of key elements, the constructing including distributing the plurality of key elements to a plurality of key maintenance entities, each of the plurality of key maintenance entities employing a plurality of independent safe guards for their respective key elements of the plurality of key elements; and requiring access to the plurality of key elements to construct the encryption key. The method includes receiving a subset of the plurality of key elements via a twice-encrypted communications channel; and regenerating the encryption key at the client node; and after encrypting data, deleting the subset of the plurality of key elements received over the twice-encrypted communications channel, retaining any of the plurality of key elements previously stored at the client node.

    Full duplex wireless transmission with channel phase-based encryption

    公开(公告)号:US10211965B2

    公开(公告)日:2019-02-19

    申请号:US15866218

    申请日:2018-01-09

    摘要: An apparatus includes a first transceiver, at least two antennas coupled to the first transceiver to exchange one or more keys and phase data with a second transceiver via a plurality of rounds of phase data exchange, each round including: a first pilot signal sent from a first of the antennas of the first transceiver to the second transceiver, a second pilot signal received from the second transceiver, the second pilot signal modulated using a measured first phase of the first pilot signal, a third pilot signal received from the second transceiver; a fourth pilot signal sent from a second of the antennas of the first transceiver to the second transceiver, the fourth pilot signal modulated using a measured second phase of the third pilot signal, and wherein between the plurality of rounds of phase exchange, the first transceiver perturbs a radio frequency (RF) environment surrounding the at least two antennas.

    INSTANTANEOUS BEAMFORMING EXPLOITING USER PHYSICAL SIGNATURES

    公开(公告)号:US20170317724A1

    公开(公告)日:2017-11-02

    申请号:US15585128

    申请日:2017-05-02

    摘要: A communication system where a central node (base-station or access point) communicates with multiple clients in its neighbourhood using transparent immediate beam-forming. Resource allocation and channel access is such that the central node does not necessarily know when each client starts its transmission. Receive beam-forming in such a system is not possible, as beam-forming coefficients for each client should be selected according to the particular channel realization from that client to the central node. Each client is detected early in its transmission cycle, based on either a signature that is part of the physical characteristics unique to that client, or based on a signature that is intentionally inserted in the clients' signal, and accordingly adjusts its beam-forming coefficients.

    Wireless Full-Duplex System and Method with Self-Interference Sampling
    10.
    发明申请
    Wireless Full-Duplex System and Method with Self-Interference Sampling 审中-公开
    无干扰全双工系统和自干扰采样方法

    公开(公告)号:US20150156003A1

    公开(公告)日:2015-06-04

    申请号:US14301076

    申请日:2014-06-10

    IPC分类号: H04L5/14 H04L1/00

    CPC分类号: H04L5/143 H04B1/525

    摘要: A full-duplex transceiver is provided with componentry and methods for cancellation of nonlinear self-interference signals. The transceiver is capable of receiving an incoming radio-frequency signal that includes both a desired radio-frequency signal component and a self-interference component caused by the transceiver's own radio-frequency transmission. The transceiver demodulates the incoming radio-frequency signal to generate a first demodulated signal. The transceiver combines an analog corrective signal with the first demodulated signal to generate a second demodulated signal with reduced self-interference. The transceiver processes the first and second demodulated signals to determine a desired incoming baseband signal and to determine nonlinear components of the self-interference signal, such as nonlinearities introduced by the transceiver's power amplifier.

    摘要翻译: 全双工收发器具有用于消除非线性自干扰信号的组件和方法。 收发器能够接收包括期望的射频信号分量和由收发器自己的射频传输引起的自干扰分量的输入射频信号。 收发器解调输入的射频信号以产生第一解调信号。 收发器将模拟校正信号与第一解调信号组合,以产生具有减小的自干扰的第二解调信号。 收发器处理第一和第二解调信号以确定期望的输入基带信号并且确定自干扰信号的非线性分量,例如由收发机的功率放大器引入的非线性。