Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2003-05-22
2008-09-02
Maung, Nay (Department: 2618)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S041200, C455S069000, C455S011100, C455S066100, C370S348000
Reexamination Certificate
active
07421273
ABSTRACT:
A method and system for servicing data traffic in wireless local area networks (such as IEEE 802.11 networks) in multiple queues having different levels of priority. These queues include at least a low priority queue for ‘best effort’ traffic, a medium priority queue for streaming data such as video pictures, and a high priority queue for voice traffic, and are serviced in order of decreasing priority. To prevent the ‘best effort’ traffic in the low priority queue from being ‘starved’, a bit is set to indicate when such a condition is likely to occur, and the low priority queue is served first when that bit has been set. Alternatively, low and medium priority traffic is handled on a weighted round-robin basis, and high priority traffic is given strict priority over both. Transmit and receive queues are handled on a rotating priority basis.
REFERENCES:
patent: 6898649 (2005-05-01), Goudie
patent: 2001/0053149 (2001-12-01), Mo et al.
patent: 2002/0159418 (2002-10-01), Rudnick et al.
patent: 2003/0223453 (2003-12-01), Stoler et al.
patent: 2004/0047319 (2004-03-01), Elg
Diepstraten Wilhelmus
Somani Jayant
Strauss Steven E.
Agere Systems Inc.
Chan Richard
Maung Nay
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