Spectrum processing method, base station, user equipment, and system

A base station, wherein the base station corresponds to a first cell, and the base station comprises a processor and a non-transitory computer readable storage medium, wherein the non-transitory computer readable storage medium stores a program, and when the program is executed by the processor, the following steps are performed:

• receiving at least one subband channel quality parameter that is sent by user equipment (UE) in the first cell, wherein each subband channel quality parameter indicates quality of one subband channel;
• and
• determining, according to the at least one subband channel quality parameter, whether the first cell uses an overlapped spectrum, wherein the overlapped spectrum is a part at which a frequency band of the first cell overlaps a frequency band of a second cell, the second cell and the first cell are inter-system cells, and the second cell is neighboring to the first cell.

User equipment (UE), wherein the UE is in a first cell, and the UE comprises a processor and a non-transitory computer readable storage medium, wherein the non-transitory computer readable storage medium stores a program, and when the program is executed by the processor, the following steps are performed:

• measuring at least one subband channel, and obtain at least one subband channel quality parameter according to a measurement result;
• and
• reporting the at least one subband channel quality parameter to a base station corresponding to the first cell, so that the base station determines, according to the at least one subband channel quality parameter, whether an overlapped spectrum is used, wherein the overlapped spectrum is a part at which a frequency band of the first cell overlaps a frequency band of a second cell, the second cell and the first cell are inter-system cells, and the second cell is neighboring to the first cell.