1. A wireless communication method, comprising:sending, by a first base station in a communications system comprising at least two base stations, a resource request message to a second base station in the communications system, wherein the resource request message requests the second base station to allocate a time-frequency resource to the first base station, wherein the first base station performs wireless communication using a first frequency domain resource, wherein the second base station performs wireless communication using a second frequency domain resource, and wherein the first frequency domain resource does not overlap the second frequency domain resource;
receiving resource configuration information from the second base station, wherein the resource configuration information indicates a first time-frequency resource, and the first time-frequency resource belongs to the second frequency domain resource in a frequency domain;
determining the first time-frequency resource according to the resource configuration information; and
communicating with a terminal device using the first time-frequency resource.