Method and arrangement of locating cordless units in wide area c

Details Method and arrangement of locating cordless units in wide area c Method and arrangement of locating cordless units in wide area c

1994-01-13

1995-08-15

Kuntz, Curtis

Telephonic communications

Audio message storage, retrieval, or synthesis

379 59, 379 58, 455 331, H04M 1100

Patent

active

054426847

ABSTRACT:
A method and arrangement of locating cordless units in a wide area cordless telephone system is disclosed. A service area is previously divided into a plurality of small service zones and, a plurality of cordless units are provided for establishing communications with a system controller via a plurality of access stations. The system controller locates the cordless units and stores therein location data thereof. Each of the cordless units also stores the location data thereof applied from the system controller. A cordless unit issues a request signal which includes cordless unit location data. The request signal is received at an access station which in turn checks to determine if the request signal applied thereto is issued from a cordless unit whose location data indicates a service zone belonging to a predetermined service zone group. In the event that the cordless unit location data applied to the access station is found to fall within the predetermined service zone group, the access station relays the request signal applied thereto, together with a signal level of the request signal, to the system controller.

REFERENCES:
patent: 4843622 (1989-06-01), Yatsutani et al.
patent: 4852148 (1989-07-01), Shibata et al.
patent: 4879740 (1989-11-01), Nagashima et al.
patent: 4955050 (1990-09-01), Yamauchi
patent: 5054110 (1991-10-01), Comroe et al.

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