Beacon packet having traffic indicator flag

Details Beacon packet having traffic indicator flag Beacon packet having traffic indicator flag

2005-08-23

2005-08-23

Sam, Phirin (Department: 2661)

Multiplex communications

Channel assignment techniques

Using time slots

C370S432000, C370S443000

Reexamination Certificate

active

06934299

ABSTRACT:
Disclosed are systems, methods, computer program products and computer data signals for broadcasting a beacon packet to one or more client stations and for processing a beacon packet. The beacon packet includes a preamble, a header and a data portion. In one broadcasting method, it is determined if there is any data buffered for any of the client stations. If there is data buffered, a traffic indicator flag located before the data portion of the beacon packet is set to a first logic value. If there is not any data buffered, the traffic indicator flag is set to a second logic value. The beacon packet is broadcast to the client stations.

REFERENCES:
patent: 2003/0135797 (2003-07-01), Choi
patent: 2004/0081140 (2004-04-01), Martin
“FLEX Protocol Specification and FLEX Encoding and Decoding Requirements”, Issue: G1.8, Motorola, Inc., May 7, 1996.
IEEE Std 802.11-1997, “Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications”. The Institute of Electrical and Electronic Engineers, Inc., 1997, Sections 7.23, 7.2.3.1, 7.3, and 15.2.3.4.
ANSI/IEEE Std 802.11, 1999 Edition, “Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications”; The Institute of Electrical and Electronic Engineers, Inc., 1999, Sections abstract, 7.23, 7.2.3.1, 7.3, and 15.2.3.4.
IEEE Std 802.11b-1999, “Part 11:Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications”, The Institute of Electrical and Electronic Engineers, Inc., 1999, Sections 7.2.3.1, and 7.3.1.4-7.3.2.2.
IEEE P802.11g/D8.2 Apr 2003, “Draft Supplement to Standard [for] Information Technology”.The Institute of Electrical and Electronic Engineers, Inc., 2003, Sections 7.23, 7.2.3.1, 7.3, and 19.3.2.1.

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