Method and system for scheduling traffic in a wireless network

Details Method and system for scheduling traffic in a wireless network Method and system for scheduling traffic in a wireless network

2003-08-13

2008-12-02

Ngo, Ricky (Department: 2616)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S395200, C370S400000, C370S422000, C370S432000, C370S458000, C370S235000, C370S338000

Reexamination Certificate

active

07460543

ABSTRACT:
The present invention provides a method and system for efficiently scheduling wireless LAN traffic, giving the network the ability to serve both real-time and non-real time applications concurrently, while maintaining a requested level of quality of service for the real time application. It describes a method for scheduling quality of service traffic and a method to optimize this schedule thereby reducing the overall amount of time that is required for serving quality of service traffic (which is coordinated by a centralized network coordinator entity) and increasing the bandwidth available for non-real-time traffic. One application of such a scheduler would be WLANs that carry AV streams, such as may be found in a home based WLAN. Furthermore, a method is provided for announcing the schedule to all nodes in a wireless network to, for example, implement a power savings feature, thereby optimizing battery life and reducing the size and weight of portable network access terminals.

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An IEEE document entitled “Supplement to IEEE Standard for Information technology—Telecommunications and information exchange between systems—Local and metropolitan area Networks—Specific requirements—Part II: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: Higher-Speed Physical Layer Extension in the 2.4 GHz Band, IEEE Std 802.116-1999, IEEE Sep. 1999”.
“Supplement to IEEE Standard for—Information technology—Telecommunications and information exchange between systems Local and Metropolitan Area Networks—Specific Requirements—Part II: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: Higher-Speed Physical Layer Extension in the 5 GHz Band, IEEE Std. 802.11a-1999, IEEE Sep. 1999” published Dec. 30, 1999.
“Draft Supplement to Standard For—Telecommunications and information exchange between systems—LAN/MAN—Specific Requirements—Part II: Wireless Medium Access Control (MAC) and Physical Layer (PHY) specifications: medium access control (MAC) Enhancements for Quality of Service (QoS),” IEEE 802.11e/D4.0 Nov. 2002.

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