Patent ID: 6707862
Filing Date: 2004-03-16
Classification: H04L,H04W

Abstract:
A wireless transmitter, comprising:a power transmitter, operating to transmit a data stream; and a data rate controller operating to predictively determine a data rate for a frame of said data stream, using previously transmitted bit energy of a traffic channel, and a target data throughput; wherein said data rate controller includes a first selector to receive a target data throughput, said first selector operating to select a set of normalized thresholds based on said target data throughput; said data rate controller further includes a bit energy computer to receive signal power level and a current data rate of a traffic channel, said bit energy computer computing transmitted bit energy on said traffic channel; said data rate controller further includes a predictor operating to predict bit energy distributed over a frame period using said transmitted bit energy: said data rate controller further includes an estimator configured to compute a statistical distribution of average bit energy in said frame period using said predicted bit energy; said estimator includes a weighted average calculator configured to compute average bit energy in said frame period by averaging said predicted bit energy; and said averaging is performed by multiplying each predicted bit energy value with a specified weight, such that a sum of specified weights is equal to one.