A non-transitory computer readable medium configured to store instructions for causing a processor executing the instructions to implement a method comprising:
- configuring a first service type mobility management entity corresponding to a first predetermined service at a location, the first service type mobility management entity connectable to first user equipment subscribed for the first predetermined service;
- configuring a second service type mobility management entity corresponding to a second predetermined service different from the first predetermined service at the location, the second service type mobility management entity connectable to second user equipment subscribed for the second predetermined service;
- and
- performing, in response to determining that the first service type mobility management entity fails to connect to the first user equipment, a switchover of a connection for the first user equipment to connect to a different first service type mobility management entity at a different location,
- wherein the method further comprises:
- in response to determining that the first and second service type mobility management entities fail to connect to the first and second user equipment, respectively,
- performing the switchover of the connection for the first user equipment to connect to the different first service type mobility management entity at the different location, and
- performing a second switchover of a connection for the second user equipment to connect to a different second service type mobility management entity at the different location, or
- in response to determining that the first service type mobility management entity fails to connect to the first user equipment and receiving a request of connecting new first user equipment subscribed for the first predetermined service, selecting the different first service type mobility management entity at the different location to connect to the new first user equipment, or
- in response to determining that the first service type mobility management entity fails to connect to the first user equipment and the second service type mobility management entity remains connected to the second user equipment, performing the switchover of the connection for the first user equipment to connect to the different first service type mobility management entity at the different location while maintaining the connection between the second service type mobility management entity and the second user equipment to allow the second service type mobility management entity at the location to connect to new second user equipment, or
- in response to a determination that the first and second service type mobility management entities at the location fail to connect to the first and second user equipment, respectively, and in response to determining that one of the first or second service type mobility management entities becomes connectable, performing a switchover of a connection for one of the first or second user equipment to connect to said one of the first service type mobility management entity or the second service type mobility management entity.