Support for no SUPI or no non-3GPP coverage in 5G mobile communications
Examples pertaining to no subscription permanent identifier (SUPI) or no non-3GPP coverage in 5G mobile communications are described. A processor controls a communication device of a UE to connect to one or more wireless networks and receive one or more 5GS services via a 3GPP access and a non-3GPP access. The processor performs either a first procedure or a second procedure. The first procedure involves: (i) detecting either no Subscriber Identity Module (SIM) being inserted in the UE or a SIM inserted in the UE being invalid; and (ii) entering the UE into a 5G no-SUPI substate responsive to the detecting. The second procedure involves: (i) performing registration or determining that the UE is registered to one or more 5GS services over the non-3GPP access; (ii) detecting an absence of non-3GPP coverage; and (iii) entering the UE into a no access point available substate responsive to the detecting.
1. A method, comprising:
controlling, by a processor of an apparatus implemented in a user equipment (UE), a communication device of the apparatus to connect to one or more wireless networks and receive one or more 5 th -Generation System (5GS) services via a non-3 rd -Generation Partnership Project (non-3GPP) access;
detecting, by the processor, either no Subscriber Identity Module (SIM) being inserted in the UE or a SIM inserted in the UE being invalid; and
entering, by the processor, the UE into a 5G no-subscription permanent identifier (no-SUPI) state responsive to the detecting.
2. The method of claim 1 , wherein the entering of the UE into the 5G no-SUPI state comprises:
determining that a predefined condition exists; and
operating the UE in a 5G Mobility Management (5GMM) deregistered no-SUPI (5GMM-DEREGISTERED.NO-SUPI) state for the non-3GPP access,
wherein the predefined condition comprises either the UE having no valid subscriber data available or the UE having an invalid SIM.
3. The method of claim 1 , wherein the non-3GPP access is via WiFi.
4. The method of claim 1 , wherein the 5G no-SUPI state is defined in a non-3GPP access 5G Mobility Management (5GMM) state machine.
5. The method of claim 4 , wherein the 5G no-SUPI state is a substate of a main state in the non-3GPP access 5GMM state machine.
6. An apparatus implementable in a user equipment (UE), comprising:
a communication device configured to communicate wirelessly; and
a processor coupled to the communication device and configured to perform operations comprising:
controlling the communication device to connect to one or more wireless networks and receive one or more 5 th -Generation System (5GS) services via a non-3 rd -Generation Partnership Project (non-3GPP) access;
detecting, via the communication device, either no Subscriber Identity Module (SIM) being inserted in the UE or a SIM inserted in the UE being invalid; and
entering, via the communication device, the UE into a 5G no-subscription permanent identifier (no-SUPI) state responsive to the detecting.
7. The apparatus of claim 6 , wherein, in entering the UE into the 5G no-SUPI state, comprises:
determining that a predefined condition exists; and
operating the UE in a 5G Mobility Management (5GMM) deregistered no-SUPI (5GMM-DEREGISTERED.NO-SUPI) state for the non-3GPP access,
wherein the predefined condition comprises either the UE having no valid subscriber data available or the UE having an invalid SIM.
8. The method of claim 6 , wherein the non-3GPP access is via WiFi.
9. The method of claim 6 , wherein the 5G no-SUPI state is defined in a non-3GPP access 5G Mobility Management (5GMM) state machine.
10. The method of claim 9 , wherein the 5G no-SUPI state is a substate of a main state in the non-3GPP access 5GMM state machine.