Patent ID: 8306146

Claim:
A method for subscriber unit operation in a wireless communications system, the wireless communications system having a base station, the method comprising: computing an estimate of a communications channel between the subscriber unit and the base station; quantizing the estimate with a first codebook, thereby producing a first quantized estimate; scaling an n-th codebook; quantizing an (n−1)-th quantized estimate with the scaled n-th codebook, thereby producing an n-th quantized estimate, where n is an integer value ranging from 2 to R and n initially being equal to 2, and where R is a total number of quantizations of the estimate, wherein the n-th codebook is a localized codebook; incrementing n; repeating the quantizing an (n−1)-th quantized estimate until n>R; and transmitting information based on the R quantized estimates to the base station.