Patent ID: 7493405

Claim:
A method of transmitting data in a radio communication system comprising the steps of: segmenting data into data segments; encoding each of the data segments into transmission blocks in accordance with a transmission scheme selected from a transmission protocol comprising a plurality of transmission schemes having different levels of energy per information bit to provide an energy per information bit distribution; transmitting said transmission blocks over a radio communication channel; determining an analysis group of data segments such that the analysis group comprises at least two data segments having transmission blocks encoded according to different transmission schemes with different levels of energy per information bit; receiving feedback information relating to the analysis group; determining a performance distribution measure of a channel relating to the analysis group in response to the feedback information by probing the channel at a plurality of error performance levels; and selecting a transmission scheme from the transmission protocol for at least one subsequent data segment to provide an energy per information bit variation distributed around an energy per information bit value in response to the performance distribution measure.