Patent ID: 8144667

Claim:
A method of determining error in a channel quality measurement associated with a transmission channel at a transmitter, the method comprising: determining, by a base station, a channel quality prediction error indicative a channel quality for a first time interval, the first time interval including of a plurality of subframes, the channel quality prediction error being calculated based on a first channel quality indicator associated with a first sub-frame and a second channel quality indicator associated with a second sub-frame, the first subframe and the second sub-frame being temporally spaced from one another, the first subframe and the second sub-frame being temporally spaced by at least the length of the first time interval, the determining step including, calculating a first channel quality metric for the first subframe based on the first channel quality indicator; predicting channel quality metrics for each future subframe with respect to the first subframe within the first time interval based on the first channel quality metric; calculating a second channel quality metric for the second subframe based on the second channel quality indicator; estimating channel quality metrics for each past subframe with respect to the second subframe within the first time interval based on the second channel quality metric; calculating the channel quality prediction error based on the predicted channel quality metrics and the estimated channel quality metrics.