Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Patent
1997-12-01
2000-03-07
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
455 69, 455561, 370252, 370332, H04B 700
Patent
active
060352108
ABSTRACT:
A transmission power control apparatus capable of reducing interference, in a mobile communication adopting the CDMA system, with other communications by decreasing transmission power in one direction of channel taking communication quality of other channel of direction into account is provided. A reverse channel error rate judgment section for judging a communication quality of the reverse channel by a reverse channel frame error rate detected and a forward channel error rate judgment section for judging a communication quality of the forward channel by a forward channel frame error rate reported by a mobile terminal are provided in the radio base station. The forward channel error rate judgment section, when detected, reports the state of communication degradation of own direction of channel to the reverse channel error rate judgment section which, in turn, controls to instruct the mobile terminal to decrease transmission power of the reverse channel. When communication degradation is detected by the reverse channel error rate judgment section, the state is reported to the forward channel error rate judgment section to control to decrease transmission power of the forward channel.
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Endo Hiroya
Yahagi Masahiko
Armstrong Darnell R.
Eisenzopf Reinhard J.
NEC Corporation
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