Scheduler with fairness control and quality of service support

Details Scheduler with fairness control and quality of service support Scheduler with fairness control and quality of service support

2006-09-05

2006-09-05

Gauthier, Gerald (Department: 2614)

Telecommunications

Radiotelephone system

Message storage or retrieval

C379S201050, C370S395210, C455S562100

Reexamination Certificate

active

07103350

ABSTRACT:
The present invention provides a scheduler capable of maximizing aggregate throughput while achieving controlled amount of fairness among users and meeting Quality of Service (QoS) requirements. The scheduler is configured to select the next unit of data to transmit from multiple queues associated with access terminals waiting to receive the data. For each access terminal, a weighting factor is calculated based on a temporal fading factor, a throughput fairness factor, and a delay QoS factor. The unit selected for transmission corresponds to the access terminal having the greatest overall weighting factor. The process repeats for each unit being transmitted.

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Bao, Gang, Oses, David Puig, and Holtzman, Jack, “Fairness Criteria for 1xEV-DV with More simulation Results,” Qualcomm, Inc., Jan. 24, 2001.
Jalali, A., Padovani, R., and Pankaj, R., “Data Throughput of CDMA-HDR a High Efficiency-High Data Rate Personal Communication Wireless System,” Proc. 2000 IEEE 51st Vehicular Technology Conference, May 15-18, 2000, Tokyo, Japan, pp. 1854-1858, ISBN 0-7803-5718-3.
Love, Robert, “Simulation Results with Regard to Fairness Criteria,” Motorola, Inc., 2000.

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