Communication signal processing method and device, and communication server

Disclosed are a communication signal processing method and device, and a communication server. The method comprises: determining a first time point preconfigured in a first subframe, the first time point being a first candidate transmitting time point for transmitting a first communication signal; performing idle channel detection on the to-be-transmitted first communication signal prior to the first time point; determining, according to the result of the idle channel detection, a second time point at which a signal can be transmitted; determining an occasion for transmitting the first communication signal, on the basis of the determined first and second time points. Embodiments of the present invention can effectively ensure transmission of important communication signals such as DRS, and increases the transmission efficiency of signals such as DRS.