Reconfiguration method, network device, and terminal

1. A reconfiguration method, comprising:

sending, by a first network node, a reconfiguration request of cell change configuration information to a second network node, wherein the reconfiguration request comprises: a change request or a deletion request or an addition request of cell change configuration information; and

obtaining, by the first network node, a reconfiguration response sent by the second network node based on the reconfiguration request;

wherein the cell change configuration information comprises at least one of the following items:

an association relationship between a trigger condition, a cell identifier, measurement, and a cell change command; and

measurement configuration;

wherein when the first network node is a source node and the second network node comprises at least one target node, after the step of obtaining, by the first network node, a reconfiguration response sent by the second network node based on the reconfiguration request, the method further comprises:

sending, by the first network node, a reconfiguration message of cell change configuration information to a terminal based on the reconfiguration response;

after receiving a reconfiguration complete message sent by the terminal, notifying, by the first network node, the second network node of reconfiguration completion of the cell change configuration information;

wherein the second network node comprises a first target node and a second target node; and after the notifying the second network node of reconfiguration completion of the cell change configuration information, the method further comprises:

sending, by the first network node, a resource release notification to the second target node when receiving a notification that the terminal meets a trigger condition of the cell change, wherein the trigger condition of the cell change is a trigger condition of a preset cell of the first target node;

wherein

the resource release notification is used to instruct the second target node to release a resource corresponding to target configuration information; and the target configuration information is configuration information other than executed configuration information in the cell change configuration information of the terminal.

2. The reconfiguration method according to claim 1 , wherein before the step of obtaining, by the first network node, a reconfiguration response sent by the second network node based on the reconfiguration request, the method further comprises:

sending, by the first network node, a reconfiguration instruction message of cell change configuration information to a terminal, wherein

the reconfiguration instruction message is used to instruct the terminal to delete or change current cell change configuration information.

3. The reconfiguration method according to claim 1 , wherein when the reconfiguration request is a change request of cell change configuration information, the reconfiguration response comprises at least one of: accepting change, not accepting change, accepting part of requested change, not accepting part of requested change, a cause value, and accepting unconditionally; or

when the reconfiguration request is a deletion request of cell change configuration information, the reconfiguration response comprises at least one of: accepting deletion, not accepting deletion, accepting part of requested deletion, not accepting part of requested deletion, a cause value, and accepting unconditionally.

4. The reconfiguration method according to claim 3 , wherein the step of sending, by the first network node, a reconfiguration message of cell change configuration information to a terminal based on the reconfiguration response comprises:

when the reconfiguration response comprises accepting change or accepting part of requested change, sending, by the first network node, the reconfiguration message of cell change configuration information to the terminal; or

when the reconfiguration response comprises accepting deletion or accepting part of requested deletion, sending, by the first network node, the reconfiguration message of cell change configuration information to the terminal.

5. The reconfiguration method according to claim 4 , wherein the reconfiguration message comprises at least one of the following items:

at least one cell change command;

condition configuration information;

a cell identifier; and

an association relationship between the cell identifier, the condition configuration information, and the cell change command.

6. The reconfiguration method according to claim 1 , wherein when the reconfiguration message comprises at least one cell change command, the reconfiguration complete message comprises an indication of reconfiguration completion for the reconfiguration message and validity of the cell change command.

7. A reconfiguration method, comprising:

receiving a reconfiguration message of cell change configuration information that is sent by a source node, wherein the reconfiguration message is sent by the source node based on a reconfiguration response sent by a target node, the reconfiguration response is sent by the target node based on a reconfiguration request of cell change configuration information sent by the source node, and the reconfiguration request comprises: a change request or a deletion request or an addition request of cell change configuration information; and

sending a reconfiguration complete message to the source node;

wherein the reconfiguration message comprises at least one cell change command; and after the sending the reconfiguration complete message to the source node, the method further comprises:

when a trigger condition of cell change is met, initiating a synchronization process and a random access process to a first target node based on the cell change command, wherein the trigger condition of the cell change is a trigger condition of a preset cell of the first target node;

wherein the cell change configuration information comprises at least one of the following items:

an association relationship between a trigger condition, a cell identifier, measurement, and a cell change command; and

measurement configuration.

8. The reconfiguration method according to claim 7 , wherein before the step of receiving a reconfiguration message of cell change configuration information that is sent by a source node, the method further comprises:

receiving a reconfiguration instruction message of cell change configuration information that is sent by the source node or a target node, wherein the reconfiguration instruction message is used to instruct the terminal to delete or change current cell change configuration information.

9. The reconfiguration method according to claim 8 , wherein after the receiving a reconfiguration instruction message of cell change configuration information that is sent by the source node, the method further comprises:

deleting the current cell change configuration information; or

suspending current measurement.

10. The reconfiguration method according to claim 7 , wherein the reconfiguration message comprises at least one cell change command; and

the reconfiguration complete message comprises an indication of reconfiguration completion for the reconfiguration message and validity of the cell change command.

11. A network device, comprising: a memory, a processor, and a computer program that is stored in the memory and capable of running on the processor, wherein the computer program is executed by the processor to perform:

sending a reconfiguration request of cell change configuration information to a second network node, wherein the reconfiguration request comprises: a change request or a deletion request or an addition request of cell change configuration information; and

obtaining a reconfiguration response sent by the second network node based on the reconfiguration request;

wherein the cell change configuration information comprises at least one of the following items:

an association relationship between a trigger condition, a cell identifier, measurement, and a cell change command; and

measurement configuration;

wherein when the first network node is a source node and the second network node comprises at least one target node, after the step of obtaining, by the first network node, a reconfiguration response sent by the second network node based on the reconfiguration request, the computer program is executed by the processor to further perform:

sending, by the first network node, a reconfiguration message of cell change configuration information to a terminal based on the reconfiguration response;

after receiving a reconfiguration complete message sent by the terminal, notifying, by the first network node, the second network node of reconfiguration completion of the cell change configuration information;

wherein

the second network node comprises a first target node and a second target node; and

after the notifying the second network node of reconfiguration completion of the cell change configuration information, the computer program is executed by the processor to further perform:

sending, by the first network node, a resource release notification to the second target node when receiving a notification that the terminal meets a trigger condition of the cell change, wherein the trigger condition of the cell change is a trigger condition of a preset cell of the first target node;

wherein

the resource release notification is used to instruct the second target node to release a resource corresponding to target configuration information; and the target configuration information is configuration information other than executed configuration information in the cell change configuration information of the terminal.

12. The network device according to claim 11 , wherein before the step of obtaining a reconfiguration response sent by the second network node based on the reconfiguration request, the computer program is executed by the processor to perform:

sending a reconfiguration instruction message of cell change configuration information to a terminal, wherein

the reconfiguration instruction message is used to instruct the terminal to delete or change current cell change configuration information.

13. A terminal, comprising: a memory, a processor, and a computer program that is stored in the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the steps of the reconfiguration method according to claim 7 are implemented.