A signal processing method, comprising: obtaining, by user equipment, configuration information used to detect a received signal strength indicator, RSSI, value of a signal on an unlicensed frequency, wherein the configuration information comprises sampling parameter information and a statistical window that are of the signal on the unlicensed frequency, the sampling parameter information comprises a sampling interval, and the statistical window is a time length in which statistics on RSSI values of the signal on the unlicensed frequency at sampling moments are determined; sampling, by the user equipment, the signal on the unlicensed frequency at the sampling interval, and obtaining the RSSI values of the signal on the unlicensed frequency at the sampling moments; determining, by the user equipment, statistics on the RSSI values of the signal on the unlicensed frequency at the sampling moments comprised in the statistical window, and obtaining an RSSI value statistical result of the signal on the unlicensed frequency; and reporting, by the user equipment, the RSSI value statistical result of the signal on the unlicensed frequency to the base station; characterized in that, the sampling parameter information further comprises a measurement time length in the statistical window and a measurement period in the statistical window, and the sampling, by the user equipment, the signal on the unlicensed frequency at the sampling interval, and obtaining the RSSI values of the signal on the unlicensed frequency at the sampling moments comprises: sampling, by the user equipment, for the signal on the unlicensed frequency, the signal on the unlicensed frequency at the sampling interval according to the measurement time length and the measurement period, and obtaining the RSSI values of the signal on the unlicensed frequency at the sampling moments. obtaining, by user equipment, configuration information used to detect a received signal strength indicator, RSSI, value of a signal on an unlicensed frequency, wherein the configuration information comprises sampling parameter information and a statistical window that are of the signal on the unlicensed frequency, the sampling parameter information comprises a sampling interval, and the statistical window is a time length in which statistics on RSSI values of the signal on the unlicensed frequency at sampling moments are determined; sampling, by the user equipment, the signal on the unlicensed frequency at the sampling interval, and obtaining the RSSI values of the signal on the unlicensed frequency at the sampling moments; determining, by the user equipment, statistics on the RSSI values of the signal on the unlicensed frequency at the sampling moments comprised in the statistical window, and obtaining an RSSI value statistical result of the signal on the unlicensed frequency; and reporting, by the user equipment, the RSSI value statistical result of the signal on the unlicensed frequency to the base station; characterized in that, the sampling parameter information further comprises a measurement time length in the statistical window and a measurement period in the statistical window, and the sampling, by the user equipment, the signal on the unlicensed frequency at the sampling interval, and obtaining the RSSI values of the signal on the unlicensed frequency at the sampling moments comprises: sampling, by the user equipment, for the signal on the unlicensed frequency, the signal on the unlicensed frequency at the sampling interval according to the measurement time length and the measurement period, and obtaining the RSSI values of the signal on the unlicensed frequency at the sampling moments.