Mobile communication system having a control for limiting the nu

Details Mobile communication system having a control for limiting the nu Mobile communication system having a control for limiting the nu

1994-01-25

1996-08-20

Coles, Sr., Edward L.

Telecommunications

Carrier wave repeater or relay system

Failure compensation

455 9, 455 671, 455115, H04B 160, H04B 1700, H04B 1702, H03C 162

Patent

active

055487998

ABSTRACT:
A member communication system which includes a radio base station connected to an exchange for establishing a communication interface with a mobile terminal such as a car telephone set where the number of output carriers of a modulation apparatus to be inputted to an amplification apparatus is controlled so as to be decreased in response to failure of an amplification circuit or circuits so that an increase in intermodulation distortion is eliminated and the necessity for each amplification circuit to have a superfluous saturation output is eliminated, thereby reducing power consumption. In the mobile communication system, the radio base station includes a modulation apparatus including a plurality of modulation circuits for outputting carriers different from each other, an amplification apparatus including a plurality of amplification circuits connected in parallel to each other, failure supervision apparatus for supervising a failed condition of the amplification circuits of the amplification apparatus, and an output carrier number control apparatus, for controlling the number of output carriers of the modulation apparatus in response to amplification circuit failure information detected by the failure supervision apparatus.

REFERENCES:
patent: 5119040 (1992-06-01), Long et al.
patent: 5187803 (1993-02-01), Sohner et al.
patent: 5394120 (1995-02-01), Sakamoto et al.
patent: 5412342 (1995-05-01), Sakamoto et al.
patent: 5424864 (1995-06-01), Emura
patent: 5425049 (1995-05-01), Dent

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