Therefore, in this embodiment of this application, when the signal quality of the serving cell is relatively poor, the terminal device may search for, based on the configuration information, the target cell that satisfies the trigger condition. This can avoid unnecessary searching behavior, reduce implementation complexity of the terminal device, reduce energy consumption, and ensure normal running of services.
Optionally, the configuration information may further include at least one of the following information: a cell identifier of the candidate target cell and frequency information of the candidate target cell. Specifically, the cell identifier includes a PCI and/or a CGI, and the frequency information includes an SSB frequency (for example, absoluteFrequencySSB) of the candidate target cell and/or an absolute frequency position (for example, absoluteFrequencyPointA) of a reference resource block (common RBo) of the candidate target cell.
The terminal device determines the target cell based on the information included in the configuration information, and accesses the target cell based on the information.
Optionally, the handover condition threshold corresponds to a quality level, and the quality level is used to indicate a quality value range of the serving cell.