1. A response message transmission method, comprising:receiving, by a relay user equipment, a request message from a remote user equipment, wherein the request message carries indication information;
sending, by the relay user equipment to a base station, a resource request carrying the indication information to prompt the base station to determine a relay communication period of the remote user equipment according to the indication information and to allocate a first initial resource in the relay communication period to the relay user equipment, wherein the relay communication period is a period of time used by the relay user equipment to communicate with the remote user equipment to allow the remote user equipment to access the base station through the relay user equipment;
determining, by the relay user equipment, a first target resource based on the first initial resource; and
sending, by the relay user equipment, a response message corresponding to the request message to the remote user equipment using the first target resource in the relay communication period.