A method for communication between user equipments includes: determining, by a user equipment (UE), a physical control channel resource of a first frequency; and transmitting, by the UE, first control information on a physical control channel of the first frequency; wherein the first control information includes frequency indication information and/or resource indication information of a second frequency, the frequency indication information of the second frequency is used to indicate the second frequency, and the resource indication information of the second frequency is used to indicate an allocated/reserved resource of the second frequency.