System and method for managing secure registration of a...

Details System and method for managing secure registration of a... System and method for managing secure registration of a...

2004-11-24

2010-06-15

Kincaid, Lester (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S410000, C713S182000

Reexamination Certificate

active

07738868

ABSTRACT:
In one embodiment, a scheme is provided for managing secure registration of a mobile communications device. Upon being provided with an upgraded registration process that requires encryption, the mobile communications device has the option of continuing to register with a network node using a downgraded registration process within a specified time window which involves unencrypted registration requests and responses. Thereafter, the mobile communications device is operable to select between the upgraded and downgraded registration processes.

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patent: 5953652 (1999-09-01), Amin et al.
patent: 5956639 (1999-09-01), Armbruster et al.
patent: 6453159 (2002-09-01), Lewis
patent: 6834341 (2004-12-01), Bahl et al.
patent: 2003/0220107 (2003-11-01), Lioy et al.
patent: 2004/0202329 (2004-10-01), Jung et al.
patent: 0 982 963 (2000-03-01), None
European Search Report; European Patent Office; Apr. 27, 2005; 6 pages.

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