Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1997-05-13
2000-01-11
Eisenzopf, Reinhard J.
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455436, 455441, H04Q 720
Patent
active
060145668
ABSTRACT:
A mobile communication system includes mobile terminals, radio base stations belonging to low- and high-speed mobile communication systems, and a mobile subscriber connecting apparatus to which the radio base stations are connected. The system uses both a first communication mode including the low-speed mobile communication system and a micro-cell zone and a second communication mode including the high-speed mobile communication system and a macro-cell zone. Each terminal includes a system mode selecting section for selecting the first or second communication modes constituting a system selection mode, and a terminating call responding section for transmitting, to the radio base station belonging to the low-speed mobile communication system, a terminating call response signal to which movement state information indicating that the mobile terminal is moving at a high speed is added, in response to a received call signal, when the system selection mode is set to the first communication mode, and the mobile terminal is moving at a high speed. The connecting apparatus includes a notifying section for notifying an originating subscriber that the terminal is moving at a high speed, upon reception of a terminating call response signal having movement state information added thereto through the radio base station.
REFERENCES:
patent: 5396645 (1995-03-01), Huff
patent: 5513380 (1996-04-01), Ivanov et al.
patent: 5548806 (1996-08-01), Yamaguchi et al.
patent: 5787348 (1998-07-01), Willey et al.
patent: 5822697 (1998-10-01), Matsuzawa
Eisenzopf Reinhard J.
Fuller Greta J.
NEC Corporation
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