Signal transmission method, radio frequency system, unit and storage medium

The embodiment of the invention provides a signal transmission method, a radio frequency system, a unit and a storage medium, and the method comprises the steps: dynamically configuring each power amplification module for transmitting a to-be-transmitted signal and a power supply for supplying power to each power amplification module based on frequency band combination information, a first transmission instruction of the signal to be transmitted is issued to the radio frequency transceiver unit; and based on the frequency band combination information, issuing a second transmission instruction of the radio frequency signal to the channel selection unit and the power supply selection unit to indicate the channel selection unit to respond to the transmission instruction and dynamically map each radio frequency signal output by the radio frequency transceiver unit to each power amplification module, and the power supply selection unit to respond to the transmission instruction and dynamically map each radio frequ