Method for suspending service and method for indicating suspension

1 . A method for suspending a service, performed by a base station, the method comprising:

receiving indication information that a first subscriber identification module (SIM) in a multi-SIM user equipment (UE) leaves a connected state; and

determining the first SIM to enter an inactive state or an idle state according to the indication information and a local configuration of the base station, wherein a local configuration of the base station comprises available resources locally configured in the base station or a policy locally configured in the base station;

wherein in a case where the first SIM of the multi-SIM UE enters the inactive state, the context of the first SIM is retained.

2 . The method of claim 1 , wherein receiving the indication information that the first SIM in the multi-SIM UE leaves the connected state comprises:

receiving the indication information from the first SIM; or

receiving the indication information from a core network.

3 . The method of claim 1 , wherein determining the first SIM to enter the inactive state or the idle state according to the indication information and the local configuration of the base station comprises:

determining the available resources locally configured in the base station being greater than a first resource threshold and sending a suspension request for suspending the service corresponding to the first SIM to a core network; and

determining the available resources locally configured in the base station being less than the first resource threshold and sending a releasing request for releasing the service corresponding to the first SIM to the core network.

4 . The method of claim 1 , wherein determining the first SIM to enter the inactive state or the idle state according to the indication information and the local configuration of the base station comprises:

determining the policy locally configured in the base station being able to suspend services and sending a suspension request for suspending the service corresponding to the first SIM to a core network; and

determining the policy locally configured in the base station being unable to suspend services and sending a releasing request for releasing the service corresponding to the first SIM to the core network.

5 . The method of claim 1 , wherein determining the first SIM to enter the inactive state or the idle state according to the indication information and the local configuration of the base station comprises:

determining the available resources locally configured in the base station being greater than a first resource threshold and a policy locally configured in the base station being able to suspend services and sending a suspension request for suspending the service corresponding to the first SIM to a core network.

6 . The method of claim 1 , further comprising:

sending a suspension request for suspending the service corresponding to the first SIM to a core network, wherein the suspension request comprises a reason of suspending the service corresponding to the first SIM being that the multi-SIM UE leaves.

7 . The method of claim 6 , further comprising:

determining a duration in which the first SIM leaves the connected state; and

sending the duration to the core network.

8 . A method for suspending a service, performed by a core network, the method comprising:

receiving request for a first SIM in a multi-SIM user equipment (UE) to enter an inactive state or an idle state from a base station, wherein a reason for the multi-SIM UE requesting the first SIM to enter the inactive state or the idle state is that the multi-SIM UE leaves a connected state; and

determining the first SIM to enter the inactive state or the idle state according to the reason and a local configuration of the core network, wherein the local configuration of the core network comprises available resources locally configured in the core network or a policy locally configured in the core network;

wherein in a case where the first SIM of the multi-SIM UE enters the inactive state, the base station and/or the core network retains the context of the first SIM.

9 . The method of claim 8 , wherein determining the first SIM to enter the inactive state or the idle state according to the reason and the local configuration of the core network comprises:

determining the available resources locally configured in the core network being greater than a second resource threshold and suspending the service corresponding to the first SIM, wherein the second resource threshold is associated with the reason; and

determining the available resources locally configured in the core network being less than the second resource threshold and releasing the service corresponding to the first SIM.

10 . The method of claim 8 , wherein determining the first SIM to enter the inactive state or the idle state according to the reason and the local configuration of the core network comprises:

determining the policy locally configured in the core network being able to suspend services and suspending the service corresponding to the first SIM; and

determining the policy locally configured in the core network being unable to suspend services and releasing the service corresponding to the first SIM.

11 . The method of claim 8 , wherein determining the first SIM to enter the inactive state or the idle state according to the reason and the local configuration of the core network comprises:

determining the available resources locally configured in the core network being greater than a second resource threshold and a policy locally configured in the core network being able to suspend services, and suspending the service corresponding to the first SIM wherein the second resource threshold is associated with the reason.

12 . The method of claim 8 , wherein the core network comprises an access and mobility management function (AMF) and a session management function (SMF), and the method further comprises:

sending by the AMF, an updating request for updating session management context of the service corresponding to the first SIM to the SMF, wherein the updating request comprises an operation type being a user plane suspension and a reason of the user plane suspension being the multi-SIM UE leaves;

determining the reason for the user plane suspension being that the multi-SIM UE leaves and updating the session management context of the service corresponding to the first SIM by the SMF.

13 . The method of claim 8 , further comprising:

determining a duration in which the first SIM leaves a connected state; and

determining a period of suspending the service corresponding to the first SIM reaching the duration and releasing the service corresponding to the first SIM.

14 . A method for indicating a suspension, performed by a user equipment (UE), the method comprising:

determining that a first SIM in the UE leaves a connected state, sending indication information to a base station and/or a core network, to enable the base station to determine the first SIM to enter an inactive state or an idle state according to the indication information and a local configuration of the base station, and/or to enable the core network to determine the first SIM to enter an inactive state or an idle state according to a reason for the UE requesting the first SIM to enter the inactive state or the idle state and a local configuration of the core network; wherein the reason for the UE requesting the first SIM to enter the inactive state or the idle state is that the UE leaves a connected state;

wherein the indication information is configured to indicate that the first SIM leaves the connected state;

wherein the local configuration of the base station comprises available resources locally configured in the base station or a policy locally configured in the base station, wherein the local configuration of the core network comprises available resources locally configured in the core network or a policy locally configured in the core network;

in the case of the first SIM of the UE enters the inactive state, the base station and/or the core network retains the context of the first SIM.

15 . The method of claim 14 , further comprising:

determining a second SIM being required for communication when the first SIM in the UE is in the connected state and determining that the first SIM leaves the connected state.

16 . The method of claim 14 , further comprising:

predicting, by the UE, a duration in which the first SIM leaves the connected state; and

sending, by the UE, the duration to the base station and/or the core network.

17 . A communication device, comprising:

a processor; and

a memory for storing computer programs;

wherein the processor is configured to execute the computer program to perform the method for suspending a service according to claim 1 .

18 . A communication device, comprising:

a processor; and

a memory for storing computer programs;

wherein the processor is configured to execute the computer program to perform the method for suspending a service according to claim 8 .

19 . A communication device, comprising:

a processor; and

a memory for storing computer programs;

wherein the processor is configured to execute the computer program to perform the method for suspending a service according to claim 14 .

20 . A communication system, comprising:

a user equipment (UE);

a base station as claimed in claim 1 , for communicating with the UE and a core network; and

the core network.