Patent ID: 8982979
Filing Date: 2015-03-17
Classification: H04B

Abstract:
1. A method implementable on a Multiple Input Multiple Output (MIMO) receiver for decomposing a complex channel matrix, wherein the MIMO receiver comprises a plurality of receiving chains, wherein each of the plurality of receiving chains comprises a Radio Frequency (RF) demodulator and Analog Front End (AFE), and a baseband processing unit, the method comprising: determining a real channel matrix from the complex channel matrix, wherein the number of rows and columns of the real channel matrix depends on a number of transmitting chains and a number of receiving chains; determining a Householder vector based on the real channel matrix; determining a Householder matrix based on the Householder vector and a transpose of the Householder vector, wherein the determining Householder matrix does not involve performing division operation; and determining an orthogonal matrix and an upper triangular matrix based on the Householder matrix, wherein the upper triangular matrix comprises a predetermined number of zeros in an upper triangle.