System for mutual synchronization and monitoring between base st

Multiplex communications – Wide area network – Packet switching

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Details

370 29, 370103, 455 511, H04L 710, H04B 7212

Patent

active

054485703

ABSTRACT:
A communication system that performs time-division multiple access mobile communication using radio in a service area in which are disposed a plurality of base stations connected to a central station through a communication network. The central station selects and designates a master base station and a selected base station close to the master base station. The central station instructs the selected base station to synchronize a radio signal transmitted by the selected base station with a radio signal transmitted by the master base station. The central station further selects at least one additional base station close to the selected base station. The central station instructs the at least one additional base station to synchronize a radio signal transmitted by the additional base station with a radio signal transmitted by the selected base station. The process is repeated until all of the base stations are transmitting a synchronized radio wave. The central station also sequentially designates base stations to monitor each other, and further gives each base station criteria for judging an abnormality, thereby establishing a monitoring network.

REFERENCES:
patent: 4513416 (1985-04-01), Fujiwara
patent: 4817089 (1989-03-01), Paneth et al.
patent: 5124698 (1992-06-01), Mustonen
patent: 5258980 (1993-11-01), Maebara et al.
patent: 5260944 (1993-11-01), Tomabechi
patent: 5268933 (1993-12-01), Averbuch
patent: 5285443 (1994-02-01), Patsiokas et al.

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