Patent ID: 7254143
Filing Date: 2007-08-07
Classification: H04W

Abstract:
1. A method to improve system stability in a wireless communication system, wherein data packaged in Packet Data Units (PDUs) and a Sequence Number (SN) assigned to each data packages for monitoring purpose, upon receiving a certain type of unexpected interrupt with a parameter N, transmitting PDUs of SN up to a suspend sequence number before halting the transmission of any PDUs of SN on or after the suspend sequence number, the method comprising the steps of: scheduling data to be transmitted by a Transport Format Combination (TFC) selection exchange process while the radio data transmission operation is in a particular mode; assigning the amount of scheduled data to be transmitted within the next transmission time interval (TTI); an unexpected interrupt caused by a local suspend function happening; and determining a suspend sequence number where the suspend sequence number is based on the parameter N, a calculated safety range factor and the sequence number of the next new PDU to be transmitted.