A case in which the conditional handover configuration information includes the measurement object or includes the measurement identifier is described above. Optionally, in an implementation of the first aspect, when the conditional handover configuration information is used to configure a plurality of measurement objects, the conditional handover configuration information may not only include a measurement object but also include a measurement identifier.
For example, a measurement object associated with a first measurement identifier configured in the measurement configuration information is the first measurement object. If the first measurement object, a second measurement object, and a third measurement object need to be configured by using the conditional handover configuration information, the first measurement object can be configured by including the first measurement identifier in the conditional handover configuration information. Therefore, the conditional handover configuration information may include the first measurement identifier, the second measurement object, and the third measurement object, to configure the first measurement object, the second measurement object, and the third measurement object.
With reference to the first aspect, in an implementation of the first aspect, the method further includes the following.
The terminal device sends a first message to a second network device, where the first message is used to notify the second network device of a successful handover of the terminal device, and the second network device is a network device to which the first target cell belongs.