Method for reducing peak-to-average power ratio (PAPR) and communication device

The embodiment of the invention discloses a method for reducing a peak-to-average power ratio (PAPR) and a communication device. The method and the communication device are applied to a transmitting system with a power amplifier. In the method, the reserved resource can be determined based on the first unscheduled resource located in the transmission bandwidth and/or the second unscheduled resource located in the protection bandwidth, and the fixed reserved resource in the traditional technology does not need to be adopted, so that the flexibility of determining the reserved resource can be improved; and thus, the flexibility of reducing the peak-to-average power ratio (PAPR) by adopting a frequency domain resource reservation (TR) mode is improved. 本申请实施例公开了一种降低峰均功率比PAPR的方法以及通信装置，应用于具有功率放大器的发射系统中。在该方法中，由于可以基于位于传输带宽中的第一未调度资源和/或位于保护带宽中的第二未调度资源确定预留资源，而无需采用传统技术中的固定的预留资源，因此，能够提高确定预留资源的灵活性，进而提高采用频域资源预留TR的方式降低峰均功率比PAPR的灵活性。