With reference to the first aspect, in an implementation of the first 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. Alternatively, in an implementation, the configuration information may not include the report-free indication information. In this case, in this embodiment of this application, the terminal device may be implicitly indicated not to report the measurement report. For example, it is stipulated, according to a preset rule or a protocol, that after the receiving the configuration information sent by the first network device, the terminal device does not need to report the measurement report after a handover condition is triggered, but is handed over to the target cell that satisfies the trigger condition.
In this embodiment of this application, the report-free indication information is carried in the configuration information. After determining the first target cell, the terminal device does not need to send the measurement report, so that signaling overheads can be reduced, and a fast handover can be implemented.
With reference to the first aspect, in an implementation of the first aspect, the conditional handover configuration information includes a fourth signal quality threshold.
That the terminal device determines a first target cell based on the configuration information includes: