Methods and systems for avoiding unnecessary retransmissions associated with automatic retransmission query schemes in radiocommunication systems

摘要

According to exemplary embodiments of the present invention, each transmitted data block is assigned the current value of NextPollToBeSent. When an acknowledgement message is received, a valid ACK/NACK is contained for all data blocks that have been assigned index NextAckDue. This technique of tying data blocks to a particular polling request copes well when multiple retransmissions of a data block are necessary, and when polling requests/acknowledgement messages are lost.