Patent ID: 8228793

Claim:
A method for Adaptive Delay Threshold-based Priority Queueing (A-DTPQ) scheduling by which a packet data scheduler allocates wireless resources, the packet data scheduler being included in a mobile broadband wireless access system integrally providing a realtime service and a non-realtime service, the method comprising the steps of: (a) determining whether there exists a terminal receiving packet data in excess of a delay threshold value by analyzing packet data transmitted to a plurality of user terminals requesting use of the realtime service; (b) calculating an urgency metric for determining whether urgency of terminals of realtime users utilizing the mobile broadband wireless access system has been reached when step (a) determines that the terminal receiving packet data is in excess of the delay threshold value, with the urgency metric calculated using at least a residual time and an instantaneous data rate of the packet data transmitted to the terminal exceeding the delay threshold value; (c) adaptively updating the delay threshold value based on the calculated urgency metric in step (b); and (d) allocating the wireless resources to the terminal according to the delay threshold value updated in step (c).