公开(公告)号：US10164730B2

公开(公告)日：2018-12-25

申请号：US15248777

申请日：2016-08-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kin Nang Lau ,  An Liu ,  Xiangming Kong

IPC: H04L12/56 ,  H04J11/00 ,  H04L25/03

Abstract: Embodiments of the present invention provide a signal processing method and a base station. By using respective sparse characteristics of a user signal and an interference signal, the user signal and the interference signal are iteratively recovered, that is, the interference signal is first fastened, and the user signal is recovered; and then the user signal is fastened, and the interference signal is recovered. In this way, an iteration cycle is repeated until the recovered user signal and the recovered interference signal meet a preset condition, thereby effectively improving interference cancellation performance, achieving relatively good interference suppression.

公开(公告)号：US20170005762A1

公开(公告)日：2017-01-05

申请号：US15269191

申请日：2016-09-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kinnang Lau ,  An Liu ,  Rongdao Yu

IPC: H04L5/00 ,  H04L12/863 ,  H04B7/04

CPC classification number: H04L5/0032 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/065 ,  H04L25/03 ,  H04L47/50 ,  H04W88/08

Abstract: The present invention relates to the field of communications technologies, and discloses a method, an apparatus, and a system for suppressing interference in a massive multiple-input multiple-output system, which overcome a disadvantage of sensitivity to a backhaul delay during an inter-cell interference cancellation process in an existing massive multiple-input multiple-output system. A specific embodiment of the present invention includes: obtaining channel correlation matrixes of all links, and further calculating a combined outer precoder set according to the channel correlation matrixes, where each combined outer precoder includes at least one outer precoder, and the outer precoder is a semi-unitary matrix and is not sensitive to a backhaul delay. Technical solutions of the present invention are mainly applied to a process of processing interference in a massive multiple-input multiple-output system.

Abstract translation: 本发明涉及通信技术领域，并且公开了一种用于抑制海量多输入多输出系统中的干扰的方法，装置和系统，其克服了在间隔期间的回程延迟的灵敏度的缺点， 在现有的大量多输入多输出系统中的小区干扰消除过程。 本发明的具体实施例包括：获得所有链路的信道相关矩阵，以及根据信道相关矩阵进一步计算组合外预编码器组，其中每个组合外预编码器包括至少一个外预编码器，外预编码器是 半酉矩阵，对回程延迟不敏感。 本发明的技术方案主要应用于大规模多输入多输出系统中的干扰处理过程。

公开(公告)号：US09882688B2

公开(公告)日：2018-01-30

申请号：US15269191

申请日：2016-09-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kin Nang Lau ,  An Liu ,  Rongdao Yu

IPC: H04B7/02 ,  H04L5/00 ,  H04L25/03 ,  H04B7/0456 ,  H04B7/0413 ,  H04L12/863 ,  H04B7/0452 ,  H04B7/06 ,  H04W88/08

CPC classification number: H04L5/0032 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/065 ,  H04L25/03 ,  H04L47/50 ,  H04W88/08

Abstract: The present invention relates to the field of communications technologies, and discloses a method, an apparatus, and a system for suppressing interference in a massive multiple-input multiple-output system, which overcome a disadvantage of sensitivity to a backhaul delay during an inter-cell interference cancellation process in an existing massive multiple-input multiple-output system. A specific embodiment of the present invention includes: obtaining channel correlation matrixes of all links, and further calculating a combined outer precoder set according to the channel correlation matrixes, where each combined outer precoder includes at least one outer precoder, and the outer precoder is a semi-unitary matrix and is not sensitive to a backhaul delay. Technical solutions of the present invention are mainly applied to a process of processing interference in a massive multiple-input multiple-output system.