Patent ID: 7489663

Claim:
A CDMA wireless transmission apparatus for performing closed loop power control of transmission signal from the CDMA wireless transmission apparatus characterized by comprising : a propagation loss estimation means for estimating a propagation loss of said transmission signal by calculating propagation loss of a reception signal, a transmission amplifier means for amplifying said transmission signal on the basis of received transmission power control bits, and an adjusting means for adjusting a maximum transmission power of said transmission signal used to limit a transmission power of said transmission signal determined by received transmission power control bits on the basis of the propagation loss estimated by said propagation loss estimation means, wherein said transmission amplifier means limits said transmission power so as to be less than said maximum transmission power regardless of said received transmission power control bits, wherein said maximum transmission power is obtained by the following equation: T Max =R BTS — Req +L Prop +α where T Max is said maximum transmission power, R BTS — Req is a reception signal power required for the CDMA wireless transmission apparatus to correctly demodulate the reception signal, L Prop is wave propagation loss and α is a correction amount for following fluctuation of wave.