For example, using an event A3 as an example, the configuration information further includes the sixth signal quality threshold in addition to the first signal quality threshold (for example, the first signal quality threshold is represented by G) that is for triggering the handover and that is described in the embodiment in FIG. 5. The sixth signal quality threshold is a threshold that enables the terminal device to exit an execution process of determining whether a handover trigger condition is satisfied. For example, the sixth signal quality threshold is represented by S. If a difference between the signal quality of the candidate target cell and the signal quality of the serving cell is less than S, the terminal device releases information included in the configuration information, exits the process of determining whether the handover trigger condition is satisfied, and continues to keep connecting to/transmitting data with the source cell. If the difference between the signal quality of the candidate target cell and the signal quality of the serving cell is greater than G, the terminal device is handed over to the candidate target cell that satisfies the trigger condition.
Specifically, in a process in which the terminal device searches for the first target cell that satisfies the trigger condition, if the handover cancellation condition is satisfied, the terminal device cancels the searching process, and continues to communicate with the serving cell.
720. The terminal device releases the conditional handover configuration information.
