| 摘要 |
<p>A receiving power is measured at a step 101. An initial value IP and an increment value PI for a transmission power are determined at a step 102 according to the receiving power measurement value. An expected transmission power P is set to the initial value IP at a step 103. At a step 104, it is determined whether the number of transmission times exceeds or not a predetermined number N. When the number of transmission times exceeds a predetermined number N, the operation goes back to the processing step 103. When the number of transmission times does not exceed a predetermined number of times N, a test signal is transmitted with the expected transmission power P at a step 105. After the transmission of the test signal, at a processing step 106, receipt acknowledge signal ACK from a receiving station is waited in a predetermined period of time. If no receipt acknowledge signal ACK is received in the predetermined period of time, the expected transmission power P is increased by the amount corresponding to PI at a step 107 and the operation goes back to the step 104. On the other hand, if the receipt acknowledge signal ACK is received in the predetermined period of time, the data which want to be transmitted is transmitted with the expected transmission power P at a step 108. <IMAGE></p> |
