Patent ID: 8271023
Filing Date: 2012-09-18
Classification: H04B,H04W

Abstract:
1. A method implemented in a mobile terminal, comprising: generating feedback information for transmission in order for a remote transmitter to select a precoding matrix from a codebook comprising codebook entries V in the form where the remote transmitter has M antennas, e 1 N =[1,0, . . . , 0] T εC N (N=M, M−1, . . . ), C N being N-dimensional complex space, v a denotes a column vector, v b a denotes the b th element of the vector v a , is the house-holder transformation of the vector w and v a is selected from a set V a where V 1 ={v i 1 εC M } i=1 N , V 2 ={e 1 M−1 }, V 3 ={e 1 M−2 }, . . . ; and providing the feedback information to the remote transmitter.