TRANSMISSION POWER CONTROL METHOD, SIGNALING METHOD, COMMUNICATION TERMINAL, AND BASE STATION APPARATUS

摘要

PROBLEM TO BE SOLVED: To improve a system throughput by properly controlling transmission power of an A-DPCH in a radio communication system performing HSDPA services. SOLUTION: An SIR measurement section 310 measures a received SIR of a downlink channel for each base station apparatus to be connected. An SIR selection section 311 receives a TPC generating method signal demodulated by a demodulation section 308 and demultiplexed from a data by a demultiplexer section 309, and outputs the composite value of the received SIR to a TPC command generating section 312 when the TPC generating method signal indicates a TPC command generating method of a composite value reference. The SIR selection section 311 outputs, on the other hand, only the received SIR of a signal transmitted from a primary base station apparatus to the TPC command generating section 312 when the TPC generating method signal indicates a TPC command generating method of a primary reference. The TPC command generating section 312 generates a TPC command for DL on the basis of the magnitude relation between the received SIR outputted from the SIR selection section 311 and the target SIR. COPYRIGHT: (C)2004,JPO