METHOD AND DEVICE FOR PROCESSING DATA BLOCKS, INCLUDING DATA PACKETS, IN A RECEIVER OF A MOBILE COMMUNICATION SYSTEM; METHOD FOR PROCESSING DATA IN A RECEIVER OF A COMMUNICATION SYSTEM (VARIANTS)

摘要

A method for preventing a stall condition in a terminal of a mobile communications system uses a timer to limit how long data blocks are stored in a reordering buffer. The method includes receiving a data block over a wireless link, determining whether a preceding data block has not been received, storing the received data block in the reordering buffer if a preceding data block has not been received, and then outputting the received block from the buffer when the timer expires. Whether or not apreceding data block is missing is determined based on a comparison of transmission sequence numbers. In other steps of the method, succeeding data blocks are output from the buffer based on expiration of a second timer period. The periods of the timer are advantageously controlled to prevent a wrap-around of transmission sequence numbers with respect to data blocks stored in the buffer.