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US 11,540,105 B2Granted
UE behavior when the device is attached for emergency service
AssigneeNEC Corporation
InventorsKundan Tiwari, Toshiyuki Tamura
Life of this patent
Estimating the term…
Abstract
This disclosure is related to a procedure of handling UE (100) behavior when the UE (100) is attached for emergency services. More specifically this disclosure defines the UE (100) behavior when the UE (100) is registered to a PLMN or two different PLMN via 3GPP access network and non-3GPP access network and UE (100) has is registered for emergency service over one of the 3GPP access network or non-3GPP access network.
Claims12
A method of a User Equipment (UE), the method comprising:
- performing registration procedure to a Public Land Mobile Network (PLMN) over a second access network for a non-emergency service through an Access and Mobility Management Function (AMF) in a case where the UE is registered through the AMF for an emergency service to the PLMN over a first access network;
- and
- establishing a Protocol Data Unit (PDU) session for the non-emergency service to the PLMN over the second access network,
- wherein one of the first access network and the second access network is a 3GPP access network, and the other of the first access network and the second access network is a non-3GPP access network.
1 more element
A method of a User Equipment (UE), the method comprising:
- performing registration procedure to a Public Land Mobile Network (PLMN) over a first access network for a first emergency service through an Access and Mobility Management Function (AMF);
- establishing a first Protocol Data Unit (PDU) session for the first emergency service over the first access network;
- performing registration procedure to the PLMN over a second access network for a second emergency service through the AMF in a case where the UE is registered for the first emergency service to the PLMN over the first access network and the second access network becomes available;
- establishing a second PDU session for the second emergency service over the second access network;
- and
- performing handover of a PDU session procedure from the first access network to the second access network after establishing the second PDU session for the second emergency service.
3 more elements
A User Equipment (UE) comprising:
- a memory;
- and
- at least one hardware processor coupled to the memory,
- wherein the at least one hardware processor is configured to:
- perform registration procedure to a Public Land Mobile Network (PLMN) over a second access network for a non-emergency service through an Access and Mobility Management Function (AMF) in a case where the UE is registered through the AMF for an emergency service to the PLMN over a first access network;
- and
- establish a Protocol Data Unit (PDU) session for the non-emergency service to the PLMN over the second access network,
- wherein one of the first access network and the second access network is a 3GPP access network, and the other of the first access network and the second access network is a non-3GPP access network.
5 more elements
A User Equipment (UE) comprising:
- a memory;
- and
- at least one hardware processor coupled to the memory,
- wherein the at least one hardware processor is configured to:
- perform registration procedure to a Public Land Mobile Network (PLMN) over a first access network for a first emergency service through an Access and Mobility Management Function (AMF);
- establish a first Protocol Data Unit (PDU) session for the first emergency service over the first access network;
- perform registration procedure to the PLMN over a second access network for a second emergency service through the AMF in a case where the UE is registered for the first emergency service to the PLMN over the first access network and the second access network becomes available;
- establish a second PDU session for the second emergency service over the second access network;
- and
- perform handover of a PDU session procedure from the first access network to the second access network after establishing the second PDU session for the second emergency service.
7 more elements
Dependencies are inferred from the claim text.