A wireless communication method, applied to a first base station in a communications system comprising at least two base stations (101; 102) having different access technologies, wherein the first base station performs wireless communication by using a first frequency domain resource, the first frequency domain resource is a frequency domain resource with a predetermined first center frequency and first frequency bandwidth, a second base station in the communications system performs wireless communication by using a second frequency domain resource, the second frequency domain resource is a frequency domain resource with a predetermined second center frequency and second frequency bandwidth, the first frequency domain resource does not overlap the second frequency domain resource, and the method comprises: sending (S201; S202) a resource request message to the second base station, wherein the resource request message is used to request the second base station to allocate a time-frequency resource to the first base station; receiving (S204, S205) resource configuration information from the second base station, wherein the resource configuration information is used to indicate a first time-frequency resource, and the first time-frequency resource belongs to the second frequency domain resource in frequency domain; determining the first time-frequency resource based on the resource configuration information; and communicating with a terminal device by using the first time-frequency resource; wherein the resource configuration information is specifically used to indicate a sequence number of a first time unit corresponding to the first time-frequency resource, the first time unit comprises M time units, M ≥ 1, and the resource configuration information is further used to indicate a start location of at least one of the M time units in a time domain resource corresponding to the second base station; and the determining the first time-frequency resource based on the resource configuration information comprises: determining, based on a sequence number of the at least one time unit and the start location of the at least one time unit in the time domain resource corresponding to the second base station, a start location of the first time unit in a time domain resource corresponding to the first base station. sending (S201; S202) a resource request message to the second base station, wherein the resource request message is used to request the second base station to allocate a time-frequency resource to the first base station; receiving (S204, S205) resource configuration information from the second base station, wherein the resource configuration information is used to indicate a first time-frequency resource, and the first time-frequency resource belongs to the second frequency domain resource in frequency domain; determining the first time-frequency resource based on the resource configuration information; and communicating with a terminal device by using the first time-frequency resource; wherein the resource configuration information is specifically used to indicate a sequence number of a first time unit corresponding to the first time-frequency resource, the first time unit comprises M time units, M ≥ 1, and the resource configuration information is further used to indicate a start location of at least one of the M time units in a time domain resource corresponding to the second base station; and the determining the first time-frequency resource based on the resource configuration information comprises: determining, based on a sequence number of the at least one time unit and the start location of the at least one time unit in the time domain resource corresponding to the second base station, a start location of the first time unit in a time domain resource corresponding to the first base station.