Patent ID: 8724566

Claim:
A contention-based random access resource request method of a mobile station in a wireless communication system, the method comprising: transmitting a bandwidth request sequence and a quick access message for an uplink resource request to a base station; receiving an acknowledgement from the base station indicating whether the bandwidth request sequence and the quick access message have been received by the base station; starting a timer having a differentiated value if the acknowledgement indicates that the base station has successfully received the bandwidth request sequence and the quick access message and starting a timer having a fixed value if the acknowledgement indicates that the base station has successfully received the bandwidth request sequence but has failed to successfully receive the quick access message; transmitting an advanced air interface dynamic service addition request (AAI_DSA-REQ) message to the base station, the AAI_DSA-REQ message including a proposed value for the differentiated value; and receiving an advanced air interface dynamic service addition response (AAI_DSA-RSP) message from the base station, the AAI_DSA-RSP message including a confirmed value for the differentiated value or a substituted value for the-differentiated value.