Method to prevent hyper frame number de-synchronization in a wireless communication system

摘要

Methods and apparatus are provided for HFN synchronization in a wireless communication system. If re-establishment of an RLC entity occurs during a pending RLC reset procedure, the pending RLC reset procedure is aborted and the re-establishment of the RLC entity is performed. A first RC variable included in a RESET PDU is incremented. The pending RLC reset procedure is restarted. The RESET PDU including the incremented first RC variable is transmitted. A RESET ACKnowledgement (ACK) PDU for the RESET PDU including a second RC variable is received. The second RC variable included in the received RESET ACK PDU is checked and the received RESET ACK PDU is accepted based on the checking result.

主权项

1. A method for Hyper Frame Number (HFN) synchronization in a wireless communication system comprising:
if re-establishment of a Radio Link Control (RLC) entity occurs during a pending RLC reset procedure, aborting the pending RLC reset procedure and performing the re-establishment of the RLC entity; incrementing a first RC variable included in a RESET Packet Data Unit (PDU); restarting the pending RLC reset procedure; transmitting the RESET PDU including the incremented first RC variable and a Reset Sequence Number (RSN); receiving a RESET ACKnowledgement (ACK) PDU for the RESET PDU including a second RC variable; checking the second RC variable included in the received RESET ACK PDU; and processing the received RESET ACK PDU based on the checking result.