Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Patent
1996-08-08
1999-04-27
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
455561, H04B 715, H04L 12403, H04L 1256
Patent
active
058989315
ABSTRACT:
In a mobile communications system each radio unit (14, 16) is associated with a respective base station (12) as its `home` base station; any radio unit can communicate with any base station in whose service area it is located. Each base station has a radio interface (20) for communication with radio units, a telephone interface (24) for connection to a telephone line, for example via a PABX (44), and a LAN interface (28) for connection to a local area network (40) to which all the base stations are coupled. Voice communications for a handset are always routed through the home base station for that handset, e.g. to another handset or to the PABX, irrespective of the identity of the base station in whose service area the handset is currently located.
REFERENCES:
patent: 5305467 (1994-04-01), Herndon et al.
patent: 5321690 (1994-06-01), Sato
patent: 5475681 (1995-12-01), White et al.
patent: 5592480 (1997-01-01), Carney et al.
patent: 5625623 (1997-04-01), Kent et al.
patent: 5659597 (1997-08-01), Bareis et al.
patent: 5724661 (1998-03-01), Nagashima
European Search Report 1, EP 95 30 5562, Jan. 12, 1996.
European Search Report 2, EP 95 30 5564, Jan. 11, 1996.
European Search Report 3, EP 95 30 5563, Jan. 11, 1996.
I'Anson Colin
Johnston Stuart
Eisenzopf Reinhard J.
Hewlett--Packard Company
Orgad Edan
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