Method of anticipating a communication unit's location in a netw

Details Method of anticipating a communication unit's location in a netw Method of anticipating a communication unit's location in a netw

1991-07-18

1995-04-18

Urban, Edward F.

Telecommunications

Transmitter and receiver at separate stations

459 541, 459 561, 379 59, H04Q 722

Patent

active

054086833

ABSTRACT:
A method of tracking subscribers (201, 203) in a networked radio communications system (100, 200). The subscribers (201,203) are able to roam among a plurality of coverage areas (104-106) which are serviced by a plurality of transmitters (107-109). The transmitters (107-109) are coupled to a central processor (CP, 110), which accesses a memory device (112) for storing subscriber records and site records. Subscriber records include location information for each of the subscribers, while the site records include a logical representation of geographical relationships between the coverage areas. The method relies on the subscriber to send an inbound message (330) which includes its current location. Further, the CP (110) records a message time for the inbound message, producing a timestamped location, then updates (405) a corresponding portion of the subscriber record with the timestamped location.

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