Communication terminal apparatus and base station apparatus

Details Communication terminal apparatus and base station apparatus Communication terminal apparatus and base station apparatus

2006-01-30

2008-12-02

Tran, CongVan (Department: 2617)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S561000, C370S318000

Reexamination Certificate

active

07460880

ABSTRACT:
An allocation section101in a base station apparatus of the present invention sets the transmission rate of a transmit signal for a communication terminal apparatus based on a DRC signal transmitted from that communication terminal apparatus. A power margin information detector117detects power margin information from a demodulated signal generated by a demodulator115, and, using that power margin information, a power setting section118makes a setting so as to give the minimum transmission power value at which received signal characteristics in each communication terminal apparatus meet the desired quality. Using the set transmission power value, the base station apparatus transmits a transmit signal of the set transmission rate to a communication terminal apparatus. By this means it is possible to suppress interference to a communication terminal apparatus that performs adaptive modulation communication with another base station apparatus and a communication terminal apparatus that performs adaptive modulation communication with the local base station apparatus at the same time.

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