Method and system for user equipment (UE) registration

A communication method performed by a User Equipment (UE), the communication method comprising:

• initiating a Registration procedure;
• transmitting, to an Access and Mobility Management Function (AMF), a Registration Request message including a first Local Area Data Network (LADN) Data Network Name (DNN) or an information of requesting LADN Information, in the Registration procedure;
• and
• receiving, from the AMF, a Registration Accept message including an LADN information including a second LADN DNN and an LADN service area information, in the Registration procedure,
• wherein
• the LADN is a Data Network (DN) that is accessible by the UE only in specific locations, that provides connectivity to a specific DNN, and
• the second LADN DNN is a DNN which is determined based on the first LADN DNN and subscription data.

An Access and Mobility Management Function (AMF) comprising:

• a controller configured to perform a Registration procedure;
• and
• transmission and/or reception circuitry configured to receive, from a User Equipment (UE), a Registration Request message including a first Local Area Data Network (LADN) Data Network Name (DNN) or an information of requesting LADN Information, in the Registration procedure,
• wherein
• the transmission and/or reception circuitry is further configured to transmit, to the UE, a Registration Accept message including an LADN information including a second LADN DNN and an LADN service area information, in the Registration procedure,
• wherein
• the LADN is a Data Network (DN) that is accessible by the UE only in specific locations, that provides connectivity to a specific DNN, and
• the second LADN DNN is a DNN which is determined based on the first LADN DNN and subscription data.

A communication method performed by an Access and Mobility Management Function (AMF), the communication method comprising:

• performing a Registration procedure;
• receiving, from a User Equipment (UE), a Registration Request message including a first Local Area Data Network (LADN) Data Network Name (DNN) or an information of requesting LADN Information, in the Registration procedure;
• and
• transmitting, to the UE, a Registration Accept message including an LADN information including a second LADN DNN and an LADN service area information, in the Registration procedure,
• wherein
• the LADN is a Data Network (DN) that is accessible by the UE only in specific locations, that provides connectivity to a specific DNN, and
• the second LADN DNN is a DNN which is determined based on the first LADN DNN and subscription data.