摘要 |
A mobile device camping on a radio access network is provided. The mobile device includes an antenna, a radio frequency module, a detector and a processor. The RF module transmits a data packet to the radio access network via the antenna according to a radio power. The detector detects a distance between the mobile device and a user, and generates a detection signal according to the distance between the mobile device and the user. The processor controls the antenna and the RF module to transmit a first power level of the radio power to the radio access network according to the detection signal, so as to obtain a second power level from the radio access network, wherein the processor adjusts the radio power according to the second power level.
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