Improvements in and relating to local area data network service information

A method performed by a user equipment (UE), the method comprising:

• identifying whether the UE is located in a local area data network (LADN) service area based on LADN information;
• identifying whether the UE is a substate 5th generation system mobility management (5GMM)-REGISTERED.NORMAL-SERVICE;
• and
• in case that the UE is in the LADN service area and the UE is in the substate 5GMM-REGISTERED.NORMAL-SERVICE, initiating one of:
• a UE-requested protocol data unit (PDU) session establishment procedure with a LADN data network name (DNN) to establish a PDU session for an LADN,
• a UE-requested PDU session modification procedure to modify the PDU session for the LADN, and
• a service request procedure to re-establish user-plane resources for the PDU session for the LADN.

A user equipment (UE), comprising:

• a transceiver;
• and
• at least one processor operably connected to the transceiver,
• wherein the at least one processor is configured to:
• identify whether the UE is located in a local area data network (LADN) service area based on LADN information,
• identify whether the UE is a substate 5th generation system mobility management (5GMM)-REGISTERED.NORMAL-SERVICE, and
• in case that the UE is in the LADN service area and the UE is in the substate 5GMM-REGISTERED.NORMAL-SERVICE, initiate one of:
• a UE-requested protocol data unit (PDU) session establishment procedure with a LADN data network name (DNN) to establish a PDU session for an LADN,
• a UE-requested PDU session modification procedure to modify the PDU session for the LADN, and
• a service request procedure to re-establish user-plane resources for the PDU session for the LADN.