A resource allocation method, comprising: receiving, by a base station, a downlink signal interference value that is sent by at least one, UE, associated with the base station and capability information of the at least one UE; determining, by the base station, a belonging type of the at least one UE according to the downlink signal interference value and the capability information, the belonging type being a multi-connection UE or a single-connection UE; determining a duplex mode of the at least one UE according to the belonging type; and allocating, based on the duplex mode, a resource to the at least one UE, and sending the resource to the UE, the method further comprising: the downlink signal interference value is a Signal to Interference plus Noise Ratio, SINR, of a downlink signal; and the determining, by the base station, a belonging type of the at least one UE according to the downlink signal interference value and the capability information comprises: if the SINR is greater than or equal to a first specified threshold and the capability information of the UE is that the UE can be associated with at least two base stations, determining that the belonging type of the UE is multi-connection UE; or if the SINR is less than a first specified threshold and the capability information of the UE is that the UE can be associated with only one base station, determining that the belonging type of the UE is single-connection UE wherein the determining a duplex mode of the at least one UE according to the belonging type comprises: if the belonging type is multi-connection UE, determining that the duplex mode of the multi-connection UE is frequency division duplex; or if the belonging type is single-connection UE, determining that the duplex mode of the single-connection UE is time division duplex. receiving, by a base station, a downlink signal interference value that is sent by at least one, UE, associated with the base station and capability information of the at least one UE; determining, by the base station, a belonging type of the at least one UE according to the downlink signal interference value and the capability information, the belonging type being a multi-connection UE or a single-connection UE; determining a duplex mode of the at least one UE according to the belonging type; and allocating, based on the duplex mode, a resource to the at least one UE, and sending the resource to the UE, the method further comprising: the downlink signal interference value is a Signal to Interference plus Noise Ratio, SINR, of a downlink signal; and the determining, by the base station, a belonging type of the at least one UE according to the downlink signal interference value and the capability information comprises: if the SINR is greater than or equal to a first specified threshold and the capability information of the UE is that the UE can be associated with at least two base stations, determining that the belonging type of the UE is multi-connection UE; or if the SINR is less than a first specified threshold and the capability information of the UE is that the UE can be associated with only one base station, determining that the belonging type of the UE is single-connection UE wherein the determining a duplex mode of the at least one UE according to the belonging type comprises: if the belonging type is multi-connection UE, determining that the duplex mode of the multi-connection UE is frequency division duplex; or if the belonging type is single-connection UE, determining that the duplex mode of the single-connection UE is time division duplex. the downlink signal interference value is a Signal to Interference plus Noise Ratio, SINR, of a downlink signal; and the determining, by the base station, a belonging type of the at least one UE according to the downlink signal interference value and the capability information comprises: if the SINR is greater than or equal to a first specified threshold and the capability information of the UE is that the UE can be associated with at least two base stations, determining that the belonging type of the UE is multi-connection UE; or if the SINR is less than a first specified threshold and the capability information of the UE is that the UE can be associated with only one base station, determining that the belonging type of the UE is single-connection UE wherein the determining a duplex mode of the at least one UE according to the belonging type comprises: if the belonging type is multi-connection UE, determining that the duplex mode of the multi-connection UE is frequency division duplex; or if the belonging type is single-connection UE, determining that the duplex mode of the single-connection UE is time division duplex. if the SINR is greater than or equal to a first specified threshold and the capability information of the UE is that the UE can be associated with at least two base stations, determining that the belonging type of the UE is multi-connection UE; or if the SINR is less than a first specified threshold and the capability information of the UE is that the UE can be associated with only one base station, determining that the belonging type of the UE is single-connection UE wherein the determining a duplex mode of the at least one UE according to the belonging type comprises: if the belonging type is multi-connection UE, determining that the duplex mode of the multi-connection UE is frequency division duplex; or if the belonging type is single-connection UE, determining that the duplex mode of the single-connection UE is time division duplex.