Devices, systems and methods for accessing and providing network slices in a mobile communication network

A method of operating a user equipment configured to use a plurality of communication services of a mobile communication network, wherein the plurality of communication services are provided by a plurality of network slices of the mobile communication network and wherein access to the plurality of network slices is controlled by a plurality of access and mobility management functions, AMFs, including a first AMF and a second AMF, implemented in the mobile communication network, wherein the method comprises the step of registering the user equipment to the second AMF for using one or more of the communication services provided by the one or more network slices associated with the second AMF, while being registered to the first AMF for using one or more of the communication services provided by the one or more network slices associated with the first AMF.

A system providing a plurality of communication services of a mobile communication network for a user equipment, wherein the system comprises a plurality of access and mobility management functions, AMFs, including a first AMF and a second AMF, implemented in the mobile communication network, wherein the plurality of communication services are provided by a plurality of network slices of the mobile communication network and wherein access to the plurality of network slices is controlled by the plurality of AMFs, wherein the second AMF is configured to register the user equipment to the second AMF for using one or more of the communication services provided by the one or more network slices associated with the second AMF, while the user equipment is registered to the first AMF for using one or more of the communication services provided by the one or more network slices associated with the first AMF.

A method of operating a system providing a plurality of communication services of a mobile communication network for a user equipment, wherein the system comprises a plurality of access and mobility management functions, AMFs, including a first AMF and a second AMF, implemented in the mobile communication network, wherein the plurality of communication services are provided by a plurality of network slices of the mobile communication network and wherein access to the plurality of network slices is controlled by the plurality of AMFs, wherein the method comprises the step of registering the user equipment to the second AMF for using one or more of the communication services provided by the one or more network slices associated with the second AMF, while the user equipment is registered to the first AMF for using one or more of the communication services provided by the one or more network slices associated with the first AMF.