Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1997-07-25
1999-08-31
Eisenzopf, Reinhard J.
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455432, 455433, H04Q 722
Patent
active
059466200
ABSTRACT:
A radio communication system (100) has a subscriber unit (150) that operates to reduce registration requirements, particularly for power up operations. The subscriber unit (150) saves communication environment information before powering down, and restores the stored communication environment upon a subsequent power up, if the stored environment is deemed current (200, 300). Preferably, the subscriber unit (150) provides notification to the system of its powered up / down status (230, 335). The subscriber unit may complete a full power up registration process if the stored communication environment is determined to be outdated (360).
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Longhurst Audrey
Renko Mitchell E.
Schultz Charles P.
Eisenzopf Reinhard J.
Fuller Andrew S.
Motorola Inc.
Nguyen Duc
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