Mobile communication system

Details Mobile communication system Mobile communication system

1992-03-05

1994-08-16

Chin, Stephen

Telephonic communications

Having light wave or ultrasonic link for speech or paging...

Including fiber optic link within telephone network

379 58, 379 61, 379 63, 455 541, 455 561, H04M 1100, H04B 100

Patent

active

053393538

ABSTRACT:
A mobile communication system includes an exchange, a plurality of radio base stations coupled to the exchange, and a plurality of mobile stations. The exchange includes a device for obtaining receivable periods of the mobile stations, which are continuously maintained in a call receivable state during the receivable periods, a device for determining whether the mobile stations are busy and a decision device which sequentially sends call signals to the mobile stations to determine whether or not each of the stations responds to a call signal. The results of determination by the decision device are recorded in a recording device.

REFERENCES:
patent: 4792984 (1988-12-01), Matsuo
patent: 4796291 (1989-01-01), Makino
patent: 4876738 (1989-10-01), Selby
patent: 5157661 (1992-10-01), Kanai et al.
IEEE International Conference on Communication, vol. 4, Apr. 1990, Atlanta, U.S., pp. 1351-1357, Hattori et al.
"Personal Communication Concept and Architecture".
IEEE International Conference on Communication, vol. 1, Apr. 1990, Atlanta, U.S., pp. 228-232, Balasubramanya et al. "Universal Personal Telecommunications".

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