Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2005-09-20
2005-09-20
Trinh, Sonny (Department: 2687)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S456100, C455S404200, C455S414300, C455S414100, C455S456200
Reexamination Certificate
active
06947754
ABSTRACT:
An ID signal indicating a base station ID is broadcasted by a base station21sited in a specific area of a location registration area. When receiving the ID signal, a mobile station10located in the radio zone of the base station21transmits to the base station21a location registration request signal including the base station ID and a mobile station ID. The base station ID and the mobile station ID are registered in a home memory23as narrow-area location registration information. An IP server40aacquires location related information from a location-related information data base41aand transmits it to a gateway server25. The gateway server25specifies a destination of transmission for the received location related information by referring to the home memory23and transmits the location related information to the mobile station10.
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Brinks Hofer Gilson & Lione
NTT DoCoMo Inc.
Phan Huy
Trinh Sonny
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