Mobile communication system and method having base station...

Details Mobile communication system and method having base station... Mobile communication system and method having base station...

2006-10-03

2006-10-03

Corsaro, Nick (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S521000, C455S445000

Reexamination Certificate

active

07117002

ABSTRACT:
A mobile communication system, and method, having, in an operational area of the base station, a plurality of mobile stations each capable of operating in an arbitrary one of two kinds of communication mode, i.e., a base station dependent mode for conducting communication via a base station and a direct communication mode for conducting direct communication between mobile stations. Information containing an important message to be received by all mobile stations is transmitted from the base station in the base station dependent mode. Upon receiving the information containing the important message, a mobile station placed in the base station dependent mode transmits the information containing the important message in the direct communication mode. As a result, all mobile stations placed in the direct communication mode receive the important message.

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“Narrow Band Digital Telecommunication System”, ARIB STD-T61, Association of Radio Industries and Business, May 1999, pp. 3, 5, 14, 16, 35, 36, 37 and 40.

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