Scheduling method for wireless packet data channel

Details Scheduling method for wireless packet data channel Scheduling method for wireless packet data channel

2005-10-13

2010-06-22

Ho, Duc C (Department: 2465)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S335000, C370S342000, C370S412000

Reexamination Certificate

active

07742455

ABSTRACT:
A scheduler at a base station may schedule packet data traffic based on a ranking metric that varies directly with the mobile station's scheduling downlink transmission rate and a delay factor indicative of the staleness of the corresponding queued data. The ranking metric may advantageously vary in a direct non-linear fashion with the delay factor to allow for delay sensitive data, such as VoIP data, to be scheduled with increased urgency when quality of service is about to be compromised. The scheduler may attempt to pack a multi-user downlink physical layer packet by selecting a tentative rate and determining if an aggregate amount of data in the packet may be increased by transmitting the packet at a lower rate. If so, additional queued data is added to the packet and the transmission rate for the packet is lowered. Such an approach allows for greater link efficiency to be achieved.

REFERENCES:
patent: 6590890 (2003-07-01), Stolyar et al.
patent: 6807426 (2004-10-01), Pankaj
patent: 7099682 (2006-08-01), Ben-Eli
patent: 2003/0039213 (2003-02-01), Holtzman et al.
patent: 2003/0067935 (2003-04-01), Hosein
patent: 2003/0202485 (2003-10-01), Mansfield
Zheng et al., “The Performance of Voice Over IP Over 3G Downlink Shared Packet Channels Under Different Delay Budgets,” Oct. 6-9, 2003, XP010702281.
Dost et al., “A Feasibility Study of Two User Downlink Transmission of IS-856 System,” Sep. 5, 2004, XP010754289.
Soong, Anthony, et al. “Forward High-Speed Wireless Packet Data Service in IS-2000—IxEV-DV.” IEEE Communications Magazine, Aug. 2003, pp. 170-177.
Bender, Paul, et al. “CDMA/HDR: A Bandwidth-Efficient High-Speed Wireless Data Service for Nomadic Users.” IEEE Communications Magazine, Jul. 2000, pp. 70-77.

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