It should be understood that, for ease of description, “conditional handover configuration information” is briefly described as “configuration information” in some parts of the embodiments of this application. In other words, unless otherwise specified or limited, “configuration information” in the embodiments of this application is equivalent to “conditional handover configuration information”. It should be noted that “configuration information” and “measurement configuration information” in the embodiments of this application are two different pieces of information. For a specific difference, refer to the following descriptions. Details are not described herein.
As shown in FIG. 3, before the network device sends the conditional handover configuration information, the network device may further send the measurement configuration information to the terminal device. The conditional handover configuration information may be associated with the measurement configuration information. That is, the embodiments provide a method for configuring a conditional handover. In the method, the network device provides the conditional handover configuration information based on the measurement configuration information, that is, the conditional handover configuration information is attached to the measurement configuration information. Specifically, with reference to FIG. 3, a handover method in an embodiment of this application is described in detail below. The method 300 shown in FIG. 3 includes the following steps.
310. A first network device sends an RRC reconfiguration message including measurement configuration information to a terminal device.