WIRELESS COMMUNICATIONS METHOD AND APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a method of relaying a signal in a wireless communications network comprising a plurality of wireless devices.SOLUTION: The method is performed by at least one of the plurality of wireless devices to relay a signal in a communication path between one of the wireless devices and another one of the wireless devices, where the at least one of the wireless devices comprises a power amplifier for amplifying the signal. The method comprises the steps of: receiving a signal from one of the plurality of wireless devices; determining a peak-to-average power ratio of the received signal under a plurality of predetermined relay modes; determining a back-off value associated with the power amplifier; selecting a mode of relaying the signal from the plurality of predetermined relay modes on the basis of the determined peak-to-average power ratio and the determined back-off value; and transmitting the signal to another one of the plurality of wireless devices using the selected mode.