Optimizing 802.11 power-save for IP multicast groups

Details Optimizing 802.11 power-save for IP multicast groups Optimizing 802.11 power-save for IP multicast groups

2008-04-22

2008-04-22

Orgad, Edan (Department: 2619)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S392000

Reexamination Certificate

active

07362757

ABSTRACT:
A method for providing a superior quality of service for multicast data streams delivered over a wireless local area network. As Internet Protocol multicast data streams are received by an access point, the access point observes Internet Group Multicast Protocol registration messages to determine which of its associated stations subscribe to each multicast data stream. The access point then determines which of the multicast data streams it receives have only active subscribing stations as opposed to those data streams having at least one associated station operating in power-save mode. The access point will automatically transmit each multicast data stream having only active subscribers immediately to the associated active stations, while buffering the multicast data stream for which there is at least one associated station operating in power-save mode.

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