Method and system of accessing a de-keyed base station

Details Method and system of accessing a de-keyed base station Method and system of accessing a de-keyed base station

2005-07-28

2010-06-01

Cumming, William D (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S457000, C455S503000, C455S522000, C370S321000

Reexamination Certificate

active

07729701

ABSTRACT:
A method and system include de-keying a base station in a conventional TDMA communications system and staffing a timer in the base station when the base station de-keys. The method and system further include receiving a transmission from a mobile station and re-keying and repeating the transmission, if the transmission is received with proper synchronization before expiration of the timer.

REFERENCES:
patent: 5678193 (1997-10-01), Helm et al.
patent: 6091962 (2000-07-01), Bonta
patent: 6282430 (2001-08-01), Young
patent: 6337983 (2002-01-01), Bonta et al.
patent: 6366782 (2002-04-01), Fumarolo et al.
patent: 6865398 (2005-03-01), Mangal
patent: 2003/0137993 (2003-07-01), Odman
patent: 2007/0053316 (2007-03-01), Wiatrowski et al.
PCT Search Report Dated Sep. 21, 2007.

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