Portable telephone system

Details Portable telephone system Portable telephone system

1992-09-08

1996-11-26

Chin, Stephen

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Testing of subscriber loop or terminal

379 59, 455 331, H04M 1104, H04M 1100

Patent

active

055793703

ABSTRACT:
Duplicate optical fibers connect between a base station controller and a radio base station for each route. The duplicate optical fiber is connected to each of the radio base stations for each route through a star coupler. The radio base stations are arranged in each of areas so that the radio base stations for different routes are arranged adjacent to each other.

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patent: 5257406 (1993-10-01), Ito
Advanced Personal Communication, Nikkei Communications, Feb. 18, 1991, pp. 52-72.

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