Method for service optimization and communications device

1. A method for service optimization, performed by a first communications device, wherein the first communications device is a terminal having a plurality of subscriptions and the method comprises:

after an emergency service initiated in a first network is ended, performing a waiting-related operation before performing a first operation, wherein

the waiting-related operation is any one of the following:

an operation of waiting for a first time period;

an operation, before the first time period is overrun, when a first condition is satisfied, of stopping waiting for the first time period; and

an operation of waiting for an incoming call, wherein the first time period is a time period starting from a time point at which the emergency service is ended;

wherein the first operation comprises at least one of the following:

sending leaving-related information or a message related to requesting leaving to the network element of the first network; wherein the leaving-related information comprises at least one of the following: a request for leaving, a request for a release, a request for suspension; or

returning to a second network;

wherein the first network is a communications network corresponding to a first subscription of the first communications device, the second network is a communications network corresponding to a second subscription of the first communications device.

2. The method according to claim 1 , wherein the first condition comprises at least one of the following:

an incoming call is received but not taken;

an incoming call is received but refused to be taken; or

an incoming call is received and taken, and the incoming call is ended, wherein

the first communications device initiates an outgoing call by using a second subscription.

3. The method according to claim 1 , wherein the performing a waiting-related operation before performing a first operation comprises:

in a case in which a second condition is satisfied, performing the waiting-related operation before performing the first operation, wherein

the second condition comprises at least one of the following:

the first communications device is in a mode using one card for sending;

the first communications device is of multi-subscription;

an emergency service of the first communications device is ended;

the first communications device needs to return to a network corresponding to the second subscription; or

a first subscription of the first communications device initiates an emergency service in the first network.

4. The method according to claim 1 , wherein

the first time period is configured by the first communications device;

or

the first time period is obtained from first time period-related information received from a second communications device.

5. The method according to claim 1 , wherein the first operation further comprises at least one of the following:

sending a detach request to a network element of the first network;

sending a deregistration request to the network element of the first network;

sending a radio resource control RRC connection release request to the network element of the first network; or

sending an RRC connection suspend request to the network element of the first network.

6. A communications device, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the first communications device is a terminal having a plurality of subscriptions, and the computer program, when executed by the processor, implements:

after an emergency service initiated in a first network is ended, performing a waiting-related operation before performing a first operation, wherein

the waiting-related operation is any one of the following:

an operation of waiting for a first time period;

an operation, before the first time period is overrun, when a first condition is satisfied, of stopping waiting for the first time period; and

an operation of waiting for an incoming call, wherein the first time period is a time period starting from a time point at which the emergency service is ended;

wherein the first operation comprises at least one of the following:

sending leaving-related information or a message related to requesting leaving to the network element of the first network; wherein the leaving-related information comprises at least one of the following: a request for leaving, a request for a release, a request for suspension; and

returning to a second network;

wherein the first network is a communications network corresponding to a first subscription of the first communications device, the second network is a communications network corresponding to a second subscription of the first communications device.

7. The communications device according to claim 6 , wherein the first condition comprises at least one of the following:

an incoming call is received but not taken;

an incoming call is received but refused to be taken; or

an incoming call is received and taken, and the incoming call is ended, wherein

the first communications device initiates an outgoing call by using a second subscription.

8. The communications device according to claim 6 , wherein the computer program, when executed by the processor, further implements:

in a case in which a second condition is satisfied, performing the waiting-related operation before performing the first operation, wherein

the second condition comprises at least one of the following:

the first communications device is in a mode using one card for sending;

the first communications device is of multi-subscription;

an emergency service of the first communications device is ended;

the first communications device needs to return to a network corresponding to the second subscription; or

a first subscription of the first communications device initiates an emergency service in the first network.

9. The communications device according to claim 6 , wherein

the first time period is configured by the first communications device;

or

the first time period is obtained from first time period-related information received from a second communications device.

10. The communications device according to claim 6 , wherein the first operation further comprises at least one of the following:

sending a detach request to a network element of the first network;

sending a deregistration request to the network element of the first network;

sending a radio resource control RRC connection release request to the network element of the first network; or

sending an RRC connection suspend request to the network element of the first network.

11. A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores a computer program, and the computer program, when executed by a processor of a first communications device being a terminal having a plurality of subscriptions, implements:

after an emergency service initiated in a first network is ended, performing a waiting-related operation before performing a first operation, wherein

the waiting-related operation is any one of the following:

an operation of waiting for a first time period;

an operation, before the first time period is overrun, when a first condition is satisfied, of stopping waiting for the first time period; and

an operation of waiting for an incoming call, wherein

the first time period is a time period starting from a time point at which the emergency service is ended;

wherein the first operation comprises at least one of the following:

sending leaving-related information or a message related to requesting leaving to the network element of the first network; wherein the leaving-related information comprises at least one of the following: a request for leaving, a request for a release, a request for suspension; or

returning to a second network;

wherein the first network is a communications network corresponding to a first subscription of the first communications device, the second network is a communications network corresponding to a second subscription of the first communications device.

12. The non-transitory computer-readable storage medium according to claim 11 , wherein the first condition comprises at least one of the following:

an incoming call is received but not taken;

an incoming call is received but refused to be taken; or

an incoming call is received and taken, and the incoming call is ended, wherein

the first communications device initiates an outgoing call by using a second subscription.

13. The non-transitory computer-readable storage medium according to claim 11 , wherein the performing a waiting-related operation before performing a first operation comprises:

in a case in which a second condition is satisfied, performing the waiting-related operation before performing the first operation, wherein

the second condition comprises at least one of the following:

the first communications device is in a mode using one card for sending;

the first communications device is of multi-subscription;

an emergency service of the first communications device is ended;

the first communications device needs to return to a network corresponding to the second subscription; or

a first subscription of the first communications device initiates an emergency service in a first network.

14. The non-transitory computer-readable storage medium according to claim 11 , wherein

the first time period is configured by the first communications device;

or

the first time period is obtained from first time period-related information received from a second communications device.

15. The non-transitory computer-readable storage medium according to claim 11 , wherein the first operation comprises at least one of the following:

sending a detach request to a network element of the first network;

sending a deregistration request to the network element of the first network;

sending a radio resource control RRC connection release request to the network element of the first network; or

sending an RRC connection suspend request to the network element of the first network.