Handover method and apparatus using radio resource reconfiguration messages

An apparatus, comprising:

• a receiver, configured to:
• receive a first radio resource reconfiguration message and M second radio resource reconfiguration messages, wherein the first radio resource reconfiguration message and the M second radio resource reconfiguration messages are sent by a first network device, the first radio resource reconfiguration message comprises a first handover command, the first handover command instructs to hand over the apparatus from the first network device to a second network device, the M second radio resource reconfiguration messages each comprise a second handover command, each second handover command instructs respective second UE corresponding to the respective second handover command to hand over from the first network device to a third network device, M is a quantity of second UEs in an RRC connected mode that are connected to the apparatus, M is an integer greater than or equal to 1, and the second network device is the same as or different from the third network device;
• and
• a processor;
• and
• a non-transitory computer-readable storage medium storing a program to be executed by the processor, the program including instructions for:
• handing over the apparatus from the first network device to the second network device according to the first handover command;
• wherein:
• the first radio resource reconfiguration message is comprised in a first radio link control service data unit (RLC SDU);
• the M second radio resource reconfiguration messages are comprised in M second RLC SDUs;
• and
• the first RLC SDU and at least one of the M second RLC SDUs are comprised in one radio link control protocol data unit (RLC PDU).

A method, comprising:

• receiving, by first user equipment (UE) from a first network device, a first radio resource reconfiguration message and M second radio resource reconfiguration messages, wherein the first radio resource reconfiguration message comprises a first handover command, the first handover command instructs the first UE to hand over from the first network device to a second network device, each second radio resource reconfiguration message of the M second radio resource reconfiguration messages comprises a respective second handover command, each second handover command instructs a respective second UE corresponding to the respective second handover command to hand over from the first network device to a third network device, M is a quantity of second UEs in a radio resource control (RRC) connected mode that are connected to the first UE, M is an integer greater than or equal to 1, and the second network device is the same as or different from the third network device;
• and
• handing over, by the first UE, from the first network device to the second network device according to the first handover command;
• wherein after handing over, by the first UE, from the first network device to the second network device, the method further comprises:
• when there is no second UE connected to the second network device using the first UE, sending, by the first UE, the M second radio resource reconfiguration messages to the second UEs.