Specifically, a plurality of handover condition thresholds may be configured by using the conditional handover configuration information. In a possible implementation, different handover condition thresholds correspond to different quality levels, and the quality level is used to indicate a quality value range of the serving cell. Alternatively, in another possible implementation, different quality levels may correspond to one of the plurality of handover condition thresholds, and the quality level is used to indicate a quality value range of the serving cell. Alternatively, in another possible implementation, a same quality level may correspond to at least two of the plurality of handover condition thresholds, and the quality level is used to indicate a quality value range of the serving cell.
In other words, in this embodiment of this application, a plurality of handover condition thresholds may be simultaneously configured by using the conditional handover configuration information. The terminal device may select a corresponding handover condition threshold based on a quality level of the serving cell (or a quality value range of the serving cell), to search for the target cell.
Therefore, in this embodiment of this application, the terminal device can use a corresponding handover condition threshold based on a quality status of the serving cell, to properly and flexibly determine the target cell.
With reference to the first aspect, in an implementation of the first 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.