公开(公告)号：US20130343475A1

公开(公告)日：2013-12-26

申请号：US13974604

申请日：2013-08-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Rui Wang ,  Hao Yu ,  Jianneng Liu

IPC: H04B7/04

CPC classification number: H04B7/0486 ,  H04L25/03974

Abstract: Embodiments of the present disclosure disclose a method and an apparatus for determining a precoding matrix, which relate to the field of communications technologies and may improve throughput of a MIMO system and optimize overall system performance, including: determining a rank constraint of a jth transmitting end, where j=1, 2, . . . , K, and K is the total number of transmitting ends in a MIMO system; iteratively calculating an optimal precoding matrix of the jth transmitting end according to a channel matrix from the jth transmitting end to a jth receiving end, an autocorrelation matrix of interference and noise of the jth receiving end, and the rank constraint of the jth transmitting end, where the optimal precoding matrix maximizes channel capacity of a link from the jth transmitting end to the jth receiving end under a circumstance that precoding matrices of other transmitting ends do not change.

Abstract translation: 本公开的实施例公开了一种用于确定预编码矩阵的方法和装置，其涉及通信技术领域，并且可以提高MIMO系统的吞吐量并优化整个系统性能，包括：确定第j个发送端的秩约束 ，其中j = 1,2。 。 。 K和K是MIMO系统中发射端的总数; 根据第j个发送端到第j个接收端的信道矩阵，第j个接收端的干扰和噪声的自相关矩阵以及第j个发送端的秩约束迭代地计算第j个发送端的最优预编码矩阵， 其中在其他发送端的预编码矩阵不改变的情况下，最佳预编码矩阵使从第j个发送端到第j个接收端的链路的信道容量最大化。