Handover method and apparatus, terminal device, and network device

A handover method, comprising:

• sending, by a network device, a first message to a relay terminal, wherein the first message is used to instruct the relay terminal to hand over to a target cell, the first message carries target configuration information in the target cell, and the target configuration information comprises first configuration information of the relay terminal and second configuration information of data of a remote terminal on a Uu interface, wherein the remote terminal is a remote terminal of the relay terminal.

A handover method, comprising:

• obtaining, by a remote terminal, fifth configuration information of the remote terminal in a target cell;
• and
• reconfiguring, by the remote terminal, a sidelink interface over a relay terminal according to the fifth configuration information.