Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1997-02-28
1999-12-14
Vo, Nguyen
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455461, H04Q 720
Patent
active
060029307
ABSTRACT:
A mobile radio communication system is disclosed in which personality information for a radio can be modified in order to permit the radio to roam from one broadcast region to another. Since each broadcast region is serviced by a different gateway, the radios within that region use particular personality information in order to communication with it. When the radios roam from one region to another, the radios request new personality information relevant to the destination region. Each radio uses local identification data to uniquely identify the radio within the system. When the radio roams, the gateway provides the radio with new local identification data relevant to the destination region. The local identification data for each radio in a given region is mapped by the gateway in a memory such that available local identification data can be re-assigned to radios that roam into the gateway region. Then, when the radio leaves the region, the local identification data that was given to the radio is de-allocated such that it is then available to another radio that roams into the region.
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Doiron Timothy J.
Graham Greg
Sadrozinski Peter
Schmidt Christopher M.
Ericsson Inc.
Vo Nguyen
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