Patent ID: 7110436

Claim:
A CDMA (code division multiple access) receiving apparatus comprising: a receiving section configured to generate a baseband signal from a received radio signal, search a path having a highest correlation with the received radio signal, generate a path delay quantity for the searched path, and generate a demodulated signal as an object signal from the baseband signal based on said path delay quantity; a memory circuit configured to store at least one SIR (signal-to-interference plus noise power ratio) value as a previous SIR value; an estimating circuit configured to estimate a SIR value from said object signal and store said estimated SIR value in said memory circuit; and a generating circuit configured to generate a TPC (transmission power control) bit signal for controlling transmission power from the estimated SIR value and at least one previous SIR value stored in said memory circuit based on said path delay quantity and a reference SIR value.