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    • 2. 发明申请
    • TRANSMITTER BEAMFORMING FOR SELF-INTERFERENCE CANCELLATION
    • 发射机波束形成自干扰消除
    • WO2018044598A1
    • 2018-03-08
    • PCT/US2017/047621
    • 2017-08-18
    • QUALCOMM INCORPORATED
    • VALLESE, PierpaoloVARANESE, Nicola
    • H04B1/525
    • Aspects of the present disclosure provide methods and apparatus for applying transmitter beamforming for self-interference cancellation. According to aspects, a method generally includes in an acquisition phase, iteratively acquiring received power measurements for different receive chains for transmissions sent via a plurality of beam directions; estimating a self-interference subspace eigenvector based, at least in part, on the received power measurements; based on the estimated self-interference subspace eigenvector, performing a local search of a nullspace to identify a filtering eigenvector; and applying the filtering eigenvector to one or more transmission chains to cancel self-interference on one or more receive chains.
    • 本公开的各方面提供了用于应用发射机波束成形以用于自干扰消除的方法和设备。 根据各方面,一种方法通常包括:在获取阶段中,迭代地获取针对经由多个波束方向发送的传输的不同接收链的接收功率测量结果; 至少部分地基于接收到的功率测量来估计自干扰子空间特征向量; 基于估计的自干扰子空间特征向量,执行零空间的局部搜索以识别滤波特征向量; 并将滤波特征向量应用于一个或多个传输链以消除一个或多个接收链上的自干扰。
    • 4. 发明申请
    • INTERFERENCE MITIGATION VIA SPACE-TIME SUBSPACE PROJECTION
    • 通过时空子空间投影实现干扰缓解
    • WO2018048519A1
    • 2018-03-15
    • PCT/US2017/044969
    • 2017-08-01
    • QUALCOMM INCORPORATED
    • VARANESE, NicolaJALLOUL, LouayVALLESE, Pierpaolo
    • H04B1/10H04B1/525
    • H04W72/082H01Q1/521H04B1/1027H04B1/525H04L5/1461H04W72/0446H04W72/046
    • Methods, systems, and devices for wireless communication are described. A wireless device may receive a signal using a plurality of radio frequency (RF) chains, and may digitally sample the signal over a period of time at outputs of the plurality of RF chains. The sampling may result in a plurality of sample time vectors. The device may map the digitally sampled signal to a set of one or more virtual antenna ports. The mapping may be performed for one or more observation sets of digital samples of the signal. Each observation set may represent a window of sample time vectors. The device may process a signal of interest (SoI) by processing digital samples associated with the set of one or more virtual antenna ports. The device may identify an interference channel contributing to interference of the SoI, and the mapping may be based on mitigating the interference of the SoI.
    • 描述了用于无线通信的方法,系统和设备。 无线设备可以使用多个射频(RF)链来接收信号,并且可以在一段时间内在多个RF链的输出处对信号进行数字采样。 采样可能导致多个采样时间向量。 该设备可以将数字采样信号映射到一组一个或多个虚拟天线端口。 该映射可以针对信号的数字样本的一个或多个观察组来执行。 每个观测集可以表示样本时间矢量的窗口。 该设备可以通过处理与该组一个或多个虚拟天线端口相关联的数字采样来处理感兴趣的信号(SoI)。 该设备可以识别对SoI的干扰有贡献的干扰信道,并且该映射可以基于减轻SoI的干扰。