Method of anticipating a communication unit's location in a networked radio communications system
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United States of America Patent
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-
Apr 18, 1995
Grant Date -
N/A
app pub date -
Jul 18, 1991
filing date -
Jul 18, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
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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