Patent ID: 7174182

Claim:
A mobile radio apparatus, which executes transmitting electric power control, comprising: a receiving circuit for receiving packet data; an allowable range setting circuit for setting an allowable range of an output ratio of target signal to disturbance wave, the allowable range setting circuit setting maximum and minimum values of the allowable range based on the value of an output ratio of initial target signal to disturbance wave; a packet data detecting circuit for detecting existence of packet data during receiving the packet data, wherein the packet data detecting circuit detects existence of packet data in a fixed cycle; and a speed detecting circuit, wherein the allowable range setting circuit changes the allowable range according to a detecting result of the speed detecting circuit, wherein if the value of an output ratio is of initial target signal to disturbance wave is less that the minimum value of the allowable range, a target value of the output ratio of initial target signal to disturbance wave is set to the minimum value of the allowable range.