With reference to the second aspect, in an implementation of the second aspect, the handover condition threshold includes a first signal quality threshold, where when a difference between signal quality of the candidate target cell and signal quality of the serving cell is greater than or equal to the first signal quality threshold, the candidate target cell satisfies the trigger condition; or the handover condition threshold includes a second signal quality threshold and a third signal quality threshold, where when signal quality of the candidate target cell is greater than or equal to the third signal quality threshold, and signal quality of the serving cell is less than the second signal quality threshold, the candidate target cell satisfies the trigger condition, where the third signal quality threshold is greater than or equal to the second signal quality threshold.
With reference to the second aspect, in an implementation of the second aspect, 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.
With reference to the second aspect, in an implementation of the second aspect, the conditional handover configuration information includes TTT indication information, and the TTT indication information is used to indicate whether the terminal device uses a TTT mechanism to determine the first target cell.
With reference to the second aspect, in an implementation of the second aspect, the conditional handover configuration information includes report-free indication information, and the report-free indication information is used to indicate the terminal device to directly perform random access to the first target cell after determining the first target cell that satisfies the trigger condition, without sending a measurement report to the first network device.