DATA COMMUNICATION METHOD AND SYSTEM USING AN ADAPTIVE HYBRID-ARQ SCHEME

摘要

Hybrid ARQ techniques for error handling are described. The amount of redundancy transmitted in response to a first NACK message associated with a first attempt to decode a data block is variable. The number of redundancy units transmitted (and/or requested) can be selected based on various criter ia including, for example, estimated channel quality, estimated block quality, memory usage, a number of outstanding blocks, etc.