Radio communication system and radio communication terminal

Details Radio communication system and radio communication terminal Radio communication system and radio communication terminal

1996-04-16

1999-06-01

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

455517, 455 88, H04B 138

Patent

active

059096527

ABSTRACT:
In a first PHS terminal, a system calling code for identifying a system in which the first PHS terminal is registered and a slave ID number for discriminating the first PHS terminal are stored in advance in an ID chip. While a user is out, he or she sets the ID chip in a second PHS terminal which does not have the same system calling code as that of the first PHS terminal. When the user performs an operation for peer-to-peer communication on the first PHS terminal, the second PHS terminal is called using a controlling physical slot. The second PHS terminal is informed that it is called by discriminating a system calling code and a PS calling number of the physical slot on the basis of the system calling code of the ID chip, and then transmits a response signal to the first PHS terminal based on the system calling code and PS calling number of the ID chip. Thus, peer-to-peer communication can be performed even between radio communication terminals which do not have the same system calling code.

REFERENCES:
patent: 5020105 (1991-05-01), Rosen et al.
patent: 5212809 (1993-05-01), Oka
patent: 5418837 (1995-05-01), Johansson et al.
patent: 5497411 (1996-03-01), Pellerin
patent: 5511232 (1996-04-01), O'Dea et al.
patent: 5640680 (1997-06-01), Ishida et al.
patent: 5675628 (1997-10-01), Hokkanen

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