Radio frequency signal receiving method and device and radio frequency signal sending method and device

The invention provides a radio frequency signal receiving method and device and a radio frequency signal sending method and device. The method comprises the steps of obtaining a frequency band of an uplink radio frequency signal after the uplink radio frequency signal sent by a terminal is received; judging whether the frequency band of the uplink radio frequency signal is within a preset frequency band range or not; under the condition that the frequency band of the uplink radio frequency signal is not within the preset frequency band range, adjusting the frequency band of the uplink radio frequency signal to a target frequency band to obtain an adjusted uplink radio frequency signal; and receiving the adjusted uplink radio frequency signal through a preset radio frequency remote port. According to the invention, the receiving and sending of multi-band radio frequency signals can be realized, the distribution of physical RRU interfaces of multiple bands is not needed, the cost of operators is saved, and the