Patent ID: 8417190

Claim:
An uplink feedback channel reporting method, comprising: periodically reporting regular information to a base station using a feedback channel, wherein the regular information comprises channel quality indicator (CQI) information, rank indicator information, or both CQI and rank indicator information, the CQI information further comprising: wideband CQI comprising an average CQI across an entire frequency band for both closed-loop multiple-input-multiple-output (MIMO) and open-loop MIMO working in downlink diversity mode; average CQI comprising a single average CQI measure across selected multiple sub-bands; and specified CQI comprising a CQI measurement for a predetermined resource unit; the rank indicator comprising the number of streams for all single-user MIMO schemes and the average CQI is reported in a time domain, wherein reporting the average CQI further comprises: obtaining the CQI of a previous frame; obtaining the CQI of a current frame, wherein the current frame succeeds the previous frame; obtaining the CQI of a next frame, wherein the next frame succeeds the current frame; calculating a differential CQI between the previous frame and the current frame, and between the current frame and the next frame; and reporting the differential CQI to the base station.