Scheduler for a shared channel

Details Scheduler for a shared channel Scheduler for a shared channel

H - Electricity

04

L

H04L 12/66 (2006.01) H04M 11/06 (2006.01) H04Q 7/36 (2006.01) H04Q 7/28 (2006.01) H04Q 7/30 (2006.01)

Patent

CA 2398755

-23- ABSTRACT A method, system and apparatus for scheduling data to subscriber stations from a base station over a shared channel. Data destined for each subscriber station is placed into queues at the base station. The base station allocates a portion of the shared channel to each particular queue based upon that queue's priority value. The priority value for each queue is determined by an adjusted QoS value and an adjusted throughput value. The QoS value indicates whether a subscriber station has been receiving data according to an agreed-upon QoS level. The throughput value indicates the data rate that can be achieved by transmitting to that subscriber station. These two values are examined by a scheduling policy at the base station. Scheduling policies can include scheduling data to emphasize fairness between subscriber stations, scheduling data to improve overall throughput, and scheduling data to achieve a balance between fairness and throughput.

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