METHOD AND APPARATUS FOR DETERMINING A QUALITY MEASURE OF A CHANNEL WITHIN A COMMUNICATION SYSTEM

摘要

A bandwidth manager sets a target packet loss probability under the assumption that the channel is perfect. A real-time estimation of an effective probability of packet loss caused by collisions (605) is then determined by filtering out statistics relating to packet loss probability that exceeds the target packet loss probability. The probability of packet loss caused by channel impairments (607) is computed after the estimates of both the load-specific packet loss probability and an overall packet loss probability is estimated. The channel quality (609) is then estimated in terms of the impairment-specific packet loss probability by considering the overhead due to retransmissions of lost packets caused by channel impairments.