Direct cellular communication

Details Direct cellular communication Direct cellular communication

2003-09-26

2009-02-03

Ramakrishnaiah, Melur (Department: 2614)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S502000, C455S450000, C455S517000

Reexamination Certificate

active

07486963

ABSTRACT:
The invention relates to radio communication in a mobile station operating on cellular frequency bands, and/or on a frequency band separated from cellular frequency bands, for transmitting and receiving calls outside a cellular network through direct communication between cellular mobile stations. It also relates to a method in a cellular telephony system comprising at least two mobile stations communicating.

REFERENCES:
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patent: 5790527 (1998-08-01), Janky et al.
patent: 6532369 (2003-03-01), Myer
patent: 6865372 (2005-03-01), Mauney et al.
patent: 2002/0102974 (2002-08-01), Raith
patent: 0 966 115 (1999-12-01), None
patent: 2 356 532 (2001-05-01), None
patent: 2 375 461 (2002-11-01), None
patent: 97/32403 (1997-09-01), None
International Search Report of PCT/SE03/01498 mailed Dec. 17, 2003.

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