METHOD FOR TRANSMISSION ERROR CONTROL OF SDU SEGMENTS

摘要

The present invention provides a method, apparatuses and system for carrying out transmission error control while reducing the amount of resources required to effectuation the transmission error control. Accordingly, in an exemplary embodiment of the invention a refinement sequence number is generated and added, for example by a protocol layer, to a segment of a data unit, such as a service data unit (SDU) or protocol data unit (PDU). The refinement sequence number may then be used by protocol layers such as the radio link control (RLC) layer or media access control (MAC) layer for transmission error control at the segment level and data unit level between peer entities.