A method for reporting a capability, performed by User Equipment, UE, the method comprising: determining a support capability for a supplementary uplink, SUL, frequency; generating indication information of the support capability of the UE for the SUL frequency based on the support capability for the SUL frequency; and reporting the indication information of the support capability for the SUL frequency to a network side, wherein determining the support capability for the SUL frequency comprises: determining, among at least one band combination, BC, supported by the UE, at least one target BC where the UE supports the SUL frequency, characterized in that the indication information comprises a BC list containing the at least one BC supported by the UE, and in that the step of generating the indication information of the support capability of the UE for the SUL frequency based on the support capability for the SUL frequency comprises: identifying the at least one target BC that supports the UE to use the SUL frequency in the BC list, setting a support indication for each of the at least one target BC respectively, and not setting the support indication for a BC in the BC list that does not support the UE to use the SUL frequency, wherein the support indication comprises an identifier, and a respective identifiet=1 is set for each of the at least one target BC to identify that each of the at least one target BC is a combination that supports the SUL frequency. determining a support capability for a supplementary uplink, SUL, frequency; generating indication information of the support capability of the UE for the SUL frequency based on the support capability for the SUL frequency; and reporting the indication information of the support capability for the SUL frequency to a network side, wherein determining the support capability for the SUL frequency comprises: determining, among at least one band combination, BC, supported by the UE, at least one target BC where the UE supports the SUL frequency, characterized in that the indication information comprises a BC list containing the at least one BC supported by the UE, and in that the step of generating the indication information of the support capability of the UE for the SUL frequency based on the support capability for the SUL frequency comprises: identifying the at least one target BC that supports the UE to use the SUL frequency in the BC list, setting a support indication for each of the at least one target BC respectively, and not setting the support indication for a BC in the BC list that does not support the UE to use the SUL frequency, wherein the support indication comprises an identifier, and a respective identifiet=1 is set for each of the at least one target BC to identify that each of the at least one target BC is a combination that supports the SUL frequency. identifying the at least one target BC that supports the UE to use the SUL frequency in the BC list, setting a support indication for each of the at least one target BC respectively, and not setting the support indication for a BC in the BC list that does not support the UE to use the SUL frequency, wherein the support indication comprises an identifier, and a respective identifiet=1 is set for each of the at least one target BC to identify that each of the at least one target BC is a combination that supports the SUL frequency.