公开(公告)号：US08798182B2

公开(公告)日：2014-08-05

申请号：US13912902

申请日：2013-06-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hui Shen ,  Bin Li ,  Yi Luo ,  Hufei Zhu

IPC: H04L27/28

CPC classification number: H04B7/0456 ,  H04B7/0413

Abstract: A precoding method and apparatus are disclosed. The corresponding method includes: constructing a Lagrange function according to a precoding matrix, transmit power, a receive filter matrix and a weighting matrix, and obtaining a Lagrange multiplier by using the Lagrange function; updating the precoding matrix according to the Lagrange multiplier to obtain an iterative precoding matrix and an iterative receive filter matrix; obtaining an iterative Lagrange multiplier according to the iterative precoding matrix, the transmit power, the iterative receive filter matrix and the weighting matrix, and repeating the above steps in an iterative manner of updating the iterative precoding matrix according to the iterative Lagrange multiplier till the iterative precoding matrix converges to a threshold; and precoding information to be transmitted according to the iterative precoding matrix converging to the threshold.

Abstract translation: 公开了一种预编码方法和装置。 相应的方法包括：根据预编码矩阵，发射功率，接收滤波器矩阵和加权矩阵构建拉格朗日函数，并通过使用拉格朗日函数获得拉格朗日乘数; 根据拉格朗日乘数更新预编码矩阵以获得迭代预编码矩阵和迭代接收滤波器矩阵; 根据迭代预编码矩阵，发射功率，迭代接收滤波器矩阵和加权矩阵获得迭代拉格朗日乘数，并以迭代方式重复上述步骤，根据迭代拉格朗日乘数更新迭代预编码矩阵，直到迭代 预编码矩阵收敛到阈值; 以及根据收敛到阈值的迭代预编码矩阵来发送的预编码信息。