Patent ID: 7730381
Filing Date: 2010-06-01
Classification: H04L,H04W

Abstract:
1. A method of performing erasure detection in a wireless communication system, comprising: ascertaining whether a received block passes an error detection code; and if the received block does not pass the error detection code, determining whether the received block is an erased block or a discontinuous transmission (DTX) block based on at least one metric determined for the received block, wherein each of the at least one metric is compared against a threshold used for the metric, wherein the received block is deemed to be an erased block if the at least one metric indicates that a data block was transmitted by a transmitter and decoded in error by a receiver and is deemed to be a DTX block if the at least one metric indicates that no data block was transmitted by the transmitter, and wherein the threshold for each metric is based on a variance computed for the metric for prior received blocks that did not pass the error detection code.