Patent ID: 9467268
Filing Date: 2016-10-11
CPC Classification: H04B,H04L,H04W

Claim Text:
1. A method for feeding back channel quality information (CQI), at a mobile station, in a wireless communication system based on Orthogonal Frequency Division Multiple Access (OFDMA), the method comprising: calculating, at the mobile station, a wideband CQI for an entire band, the entire band including at least two sub-bands; calculating, at the mobile station, at least one sub-band CQI for the at least one sub-band; transmitting, at the mobile station, the at least one sub-band CQI for the at least one sub-band at a transmission time interval for a sub-band CQI transmission; and transmitting, at the mobile station, the wideband CQI at a transmission time interval for a wideband CQI, wherein the transmission time interval for a wideband CQI is set based on N times of number of the transmission time interval for a sub-band CQI transmission, and wherein N is an integer greater than 1.