公开(公告)号：US20150311928A1

公开(公告)日：2015-10-29

申请号：US14790958

申请日：2015-07-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Teyan CHEN ,  Yinggang DU ,  Sheng LIU

IPC: H04B1/10

CPC classification number: H04B1/10 ,  H04B1/109 ,  H04B1/525

Abstract: The present invention provides an adaptive radio-interference cancelling device and method, a receiver, and a wireless full duplex communication system. The device includes an amplitude phase adjusting module, configured to adjust an amplitude and a phase of a radio-frequency reference signal and output a radio-frequency adjustment signal to enable the radio-frequency adjustment signal to converge to a self-interference signal in a radio-frequency received signal; a subtractor, configured to output a radio-frequency residual signal, where the radio-frequency residual signal is a difference signal between the radio-frequency received signal and the radio-frequency adjustment signal; and a baseband extracting and filtering module, configured to receive the radio-frequency reference signal and the radio-frequency residual signal output by the subtractor, extract baseband signals and perform least mean squares adaptive filtering processing on the baseband signals to obtain an amplitude phase control signal and output to the amplitude phase adjusting module.

Abstract translation: 本发明提供一种自适应无线电干扰消除装置和方法，接收机和无线全双工通信系统。 该装置包括幅度相位调整模块，被配置为调整射频参考信号的幅度和相位，并输出射频调整信号以使得射频调整信号能够收敛到自身干扰信号 射频接收信号; 减法器，被配置为输出射频残留信号，其中，所述射频残差信号是所述射频接收信号与所述射频调整信号之间的差信号; 以及基带提取和滤波模块，被配置为接收由所述减法器输出的所述射频参考信号和所述射频残余信号，提取基带信号并对所述基带信号执行最小均方自适应滤波处理以获得幅度相位控制 信号并输出​​到幅度相位调整模块。

公开(公告)号：US20130235960A1

公开(公告)日：2013-09-12

申请号：US13873940

申请日：2013-04-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sheng LIU ,  Yinggang DU

IPC: H04B7/04

CPC classification number: H04B7/046 ,  H04B7/0634 ,  H04B7/0663

Abstract: A method and device for acquiring a precoding matrix are provided by the present invention. The method for acquiring a precoding matrix includes: for each receiving end, selecting the interference vectors as the interference space basis vectors from whole interference vectors, representing the remaining interference vectors as the linear combination of the interference space basis vectors, wherein the remaining interference vectors are the interference vectors in the whole interference vectors of the receiving end except the interference vectors which act as the interference space basis vectors (101); determining the currently used precoding matrix according to the linear combination of the interference space basis vectors represented by the remaining interference vectors of each receiving end and the current channel condition (102). The technical solution of the present invention can eliminate interference and do not generate Bit Error Rate (BER) floor.