Patent ID: 8422393
Filing Date: 2013-04-16
Classification: H04B,H04L,H04W

Abstract:
1. A method for a user equipment (UE) to transmit a channel quality indicator (CQI) to a base station, the method comprising: selecting a preferred set of M subbands among a set of N subbands, wherein the set of N subbands spans an entire downlink system bandwidth; reporting the positions of the M selected subbands using a combinatorial index selected from among {0, 1, . . . , reporting one CQI value representing wideband CQI index for the set of N subbands; and reporting one differential CQI value reflecting the transmission of the base station only over the M selected subbands among a predetermined number of differential CQI values, wherein each of the differential CQI values is defined based on an offset level corresponding to: