AVOIDANCE OF RETRANSMISSION REQUESTS IN A PACKET RETRANSMISSION SCHEME

摘要

The invention relates to a method for avoiding retransmission requests for missing service data units in a mobile communication system, wherein service data units are transmitted in form of protocol data units by a protocol layer providing a packet retransmission scheme. The invention provides different methods the steps of which are executed by a mobile terminal or a base station, respectively. Moreover, the invention also relates to a mobile terminal and a base station performing the methods for avoiding retransmission requests for missing service data units in a mobile communication system. To decrease the signaling load imposed by mobility related signaling invention suggests to inform the mobile terminals on SDUs missing within a sequence of SDUs at the base station so that the mobile terminal will not issue a retransmission request for SDUs that have been indicated as missing. In particular the invention is applicable for notifying the RLC receiving entity at UE about packet losses on S1 interface.