Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-03-21
2006-03-21
Trinh, Sonny (Department: 2687)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S062000
Reexamination Certificate
active
07016684
ABSTRACT:
A startup process of an access point (AP) includes a discovery phase and an announcement phase. During the discovery phase, the AP detects neighboring APs from its own extended service set (ESS), neighboring APs from different ESSs, and external sources of interference. During the announcement phase, the AP transmits its beacon signals at maximum power in order to accelerate recognition by neighboring APs running the discovery phase. An automatic initialization channel selection process of an AP scans channels the AP will use to communicate. Information of each scanned channel is recorded and a best performance channel is determined for use by the AP.
REFERENCES:
patent: 5963848 (1999-10-01), D'Avello
patent: 2003/0181211 (2003-09-01), Razavilar et al.
patent: 2003/0236064 (2003-12-01), Shiohara et al.
patent: 2005/0090250 (2005-04-01), Backes
Cave Christopher
Cuffaro Angelo
Hunkeler Teresa Joanne
Marinier Paul
Roy Vincent
InterDigital Technology Corporation
Santiago-Cordero Marivelisse
Trinh Sonny
Volpe and Koenig P.C.
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