Patent ID: 8630280
Filing Date: 2014-01-14
Classification: H04B,H04L

Abstract:
1. A method for transmitting, by a user equipment (UE), feedback information to a base station (BS) in a wireless communication system, the method comprising: receiving a feedback polling request from the BS; and transmitting a feedback message in response to the feedback polling request to the BS, wherein the feedback polling request includes number information indicating a number of subbands, ‘M’, the feedback message includes indication information for indicating ‘M’ best subbands, wherein the number information indicates one of ‘all’, ‘1’, ‘6’ and ‘12’, and the feedback message includes no indication information for indicating the ‘M’ best subbands when the number information indicates ‘all’, wherein the indication information indicates the ‘M’ best subbands from among ‘N’ subbands by indicating a combination of the ‘M’ best subbands from among ‘ wherein ‘N’ depends on a Fast Fourier Transform (FFT) size, and ‘N’ is 4, 10, and 21 for 512-FFT, 1024-FFT, and 2048-FFT, respectively.