Configuration parameter update method and apparatus

1. A configuration parameter update method, comprising:

sending, by a first device, a first monitoring request to a second device, to request the second device to monitor a target event, wherein

the target event comprises one or more of a service change event, a service volume impact event, and a service volume change event,

the service volume change event is an event in which a service volume is greater than a first threshold or less than a second threshold, and

the first threshold is greater than the second threshold;

receiving, by the first device, first information of the target event from the second device, wherein

in response to the target event comprising the service change event, the first information comprises service change information,

in response to the target event comprising the service volume impact event, the first information comprises service volume impact information, and

in response to the target event comprising the service volume change event, the first information comprises service volume change information; and

updating, by the first device, a proximity communication (PC5) configuration parameter based on the first information to enable a plurality of terminals to perform communication with each other over PC5 using the updated PC5 configuration parameter.

2. The method according to claim 1 , wherein

the first information comprises the service change information,

the service change information comprises a changed service and an identifier of a first area,

the first area is an area in which the changed service is used, and

the updating, by the first device, the PC5 configuration parameter based on the first information comprises:

determining, based on the changed service, a target service used in the first area;

determining a quantity of terminals that have the target service;

determining, based on the target service and the quantity of terminals, a PC5 communication resource required in the first area; and

updating, based on the PC5 communication resource required in the first area, a PC5 communication resource pool that corresponds to the first area and that is in the PC5 configuration parameter.

3. The method according to claim 2 , wherein

the service change information further comprises an identifier of a terminal of the changed service, and

the determining the quantity of terminals that have the target service comprises:

determining, based on the identifier of the terminal of the changed service, the quantity of terminals that have the target service.

4. The method according to claim 1 , wherein

the first information comprises the service volume impact information,

the service volume impact information comprises a monitored service volume impact event and an identifier of a first area,

the first area is an area affected by the monitored service volume impact event, and

the updating, by the first device, the PC5 configuration parameter based on the first information comprises:

determining, based on the monitored service volume impact event, a PC5 communication resource required in the first area; and

updating, based on the PC5 communication resource required in the first area, a PC5 communication resource pool that corresponds to the first area and that is in the PC5 configuration parameter.

5. The method according to claim 4 , wherein

the service volume impact information further comprises a first time period,

the first time period is a time period the monitored service volume impact event lasts, and

after the updating, based on the PC5 communication resource required in the first area, the PC5 communication resource pool that corresponds to the first area and that is in the PC5 configuration parameter, the method further comprises:

restoring, based on the first time period, the PC5 communication resource pool corresponding to the first area to a PC5 communication resource pool used before the updating.

6. The method according to claim 1 , wherein

the first information comprises the service volume change information,

the service volume change information comprises a changed service volume and an identifier of a first area,

the first area is an area in which a service volume is changed, and

the updating, by the first device, the PC5 configuration parameter based on the first information comprises:

determining, based on the first information, a PC5 communication resource required in the first area; and

updating, based on the PC5 communication resource required in the first area, a PC5 communication resource pool that corresponds to the first area and that is in the PC5 configuration parameter.

7. The method according to claim 6 , wherein

the first information further comprises one or more of a type of a target terminal and a size of a message sent by the target terminal through PC5, and

the target terminal is a terminal that performs communication in the first area through the PC5.

8. The method according to claim 1 , wherein

the method further comprises:

sending, by the first device, a second monitoring request to a terminal to request the terminal to monitor a network congestion event; and

receiving, by the first device, second information of the network congestion event from the terminal, wherein the second information comprises a network parameter of the terminal and current location information of the terminal, and

the updating, by the first device, the PC5 configuration parameter based on the first information comprises:

updating, by the first device, the PC5 configuration parameter based on the first information and the second information.

9. A configuration parameter update method, comprising:

receiving, by a second device, a first monitoring request sent by a first device, wherein

the first monitoring request requests the second device to monitor a target event,

the target event comprises one or more of a service change event, a service volume impact event, and a service volume change event,

the service volume change event is an event in which a service volume is greater than a first threshold or less than a second threshold, and

the first threshold is greater than the second threshold;

monitoring, by the second device and in response to the first monitoring request, the target event; and

after monitoring the target event, reporting, by the second device, first information of the target event to the first device to enable the first device to update a proximity communication (PC5) configuration parameter based on the first information, and to enable a plurality of terminals to perform communication with each other over PC5 using the updated PC5 configuration parameter,

wherein

in response to the target event comprising the service change event, the first information comprises service change information,

in response to the target event comprising the service volume impact event, the first information comprises service volume impact information, and

in response to the target event comprising the service volume change event, the first information comprises service volume change information.

10. The method according to claim 9 , wherein

the first information comprises the service change information,

the service change information comprises a changed service and an identifier of a first area, and

the first area is an area in which the changed service is used.

11. The method according to claim 10 , wherein

the service change information further comprises an identifier of a terminal of the changed service.

12. The method according to claim 9 , wherein

the first information comprises the service volume impact information,

the service volume impact information comprises a monitored service volume impact event and an identifier of a first area, and

the first area is an area affected by the monitored service volume impact event.

13. The method according to claim 12 , wherein

the service volume impact information further comprises a first time period, and

the first time period is a time period the monitored service volume impact event lasts.

14. The method according to claim 9 , wherein

the first information comprises the service volume change information,

the service volume change information comprises a changed service volume and an identifier of a first area, and

the first area is an area in which a service volume is changed.

15. The method according to claim 14 , wherein

the first information further comprises one or more of a type of a target terminal and a size of a message sent by the target terminal through PC5, and

the target terminal is a terminal that performs communication in the first area through the PC5.

16. The method according to claim 9 , wherein the method further comprises:

receiving, by the second device, a second monitoring request sent by the first device, wherein the second monitoring request requests the second device to monitor a network congestion event;

monitoring, by the second device and in response to the second monitoring request, the network congestion event; and

after monitoring the network congestion event, reporting, by the second device, second information of the network congestion event to the first device to enable the first device to update the PC5 configuration parameter based on the first information and second information,

wherein the second information comprises a network parameter of the second device and current location information of the second device.

17. A configuration parameter update apparatus, comprising:

a transceiver; and

one or more processors connected to the transceiver, and configured to:

cause the transceiver to send, a first monitoring request to a second device to request the second device to monitor a target event, wherein

the target event comprises one or more of a service change event, a service volume impact event, and a service volume change event,

the service volume change event is an event in which a service volume is greater than a first threshold or less than a second threshold, and

the first threshold is greater than the second threshold; and

in response to receiving, through the transceiver, first information of the target event from the second device,

update a proximity communication (PC5) configuration parameter based on the first information to enable a plurality of terminals to perform communication with each other over PC5 using the updated PC5 configuration parameter,

wherein

in response to the target event comprising the service change event, the first information comprises service change information,

in response to the target event comprising the service volume impact event, the first information comprises service volume impact information, and

in response to the target event comprising the service volume change event, the first information comprises service volume change information.

18. The configuration parameter update apparatus according to claim 17 , wherein

the first information comprises the service change information,

the service change information comprises a changed service and an identifier of a first area,

the first area is an area in which the changed service is used, and

the one or more processors are further configured to

determine, based on the changed service, a target service used in the first area,

determine a quantity of terminals that have the target service,

determine, based on the target service and the quantity of terminals, a PC5 communication resource required in the first area, and

update, based on the PC5 communication resource required in the first area, a PC5 communication resource pool that corresponds to the first area and that is in the PC5 configuration parameter.

19. The configuration parameter update apparatus according to claim 18 , wherein

the service change information further comprises an identifier of a terminal of the changed service, and

the one or more processors are further configured to

determine, based on the identifier of the terminal of the changed service, the quantity of terminals that have the target service.

20. The configuration parameter update apparatus according to claim 17 , wherein

the first information comprises the service volume impact information,

the service volume impact information comprises a monitored service volume impact event and an identifier of a first area,

the first area is an area affected by the monitored service volume impact event, and

the one or more processors are further configured to

determine, based on the monitored service volume impact event, a PC5 communication resource required in the first area, and

update, based on the PC5 communication resource required in the first area, a PC5 communication resource pool that corresponds to the first area and that is in the PC5 configuration parameter.