| 摘要 |
A mobile station for a satellite communications system comprises a power detector (2), an averaging circuit (3), and a signal fade detector (4). The power detector measures channel signal power (received signal power) of a received signal received by a receiver (1). The averaging circuit (3) averages the received signal power measured by the power detector (2). The signal fade detector (4) detects fading of the averaged channel signal power. When fading of the received signal is detected, while a call request or a call response is being transmitted, then after the received signal power has recovered, a control circuit (5) of the mobile station re-transmits the call request or the call response. When fading of the received signal is detected just before a call request or a call response is transmitted, the control circuit of the mobile station stops transmitting the call request or the call response. After the received signal power has recovered, the control circuit of the mobile station then transmits the call request or the call response. <IMAGE> |
