Method to handle registration and deregistration of authenticable non-3gpp devices behind 5g-rg

A Wireline Access Gateway Function (W-AGF) configured for handling registration and connection of Authenticable Non-Third Generation Partnership Program (3GPP) (AUN3) devices with a core network, the W-AGF comprising processing circuitry configured to cause the W-AGF to:

• receive from the line connected to a residential gateway (RG) a registration request to register an AUN3 device behind the RG;
• and
• transmit to the core network a message comprising the received registration request to register the AUN3 device behind the RG and an indication indicating whether there is an existing N2 connection to the core network for the RG connected to the line on which the registration request is received.

A method performed by an Access and Mobility Function (AMF) of a core network for handling registration of one or more Authenticable Non-Third Generation Partnership Program (3GPP) (AUN3) devices behind a residential gateway (RG) connected with a line to a Wireline Access Gateway Function (W-AGF), the method comprising:

• receiving, from the W-AGF, a message comprising a registration request to register an AUN3 device behind the RG and an indication indicating whether there is an existing N2 connection to the core network for the RG connected to the line on which the registration request is received at the W-AGF;
• and
• in response to determining based on the indication that there is no existing N2 connection for the RG connected to the line on which the registration request is received at the W-AGF, rejecting the registration request of the AUN3 device.

An Access and Mobility Function (AMF) of a core network for handling registration of one or more Authenticable Non-Third Generation Partnership Program (3GPP) (AUN3) devices behind a residential gateway (RG) connected with a line to a Wireline Access Gateway Function (W-AGF), wherein the AMF comprises processing circuitry that causes the AMF to:

• receive, from the W-AGF, a message comprising a registration request to register an AUN3 device device behind the RG and an indication indicating whether there is an existing N2 connection to the core network for the RG connected to the line on which the registration request is received at the W-AGF;
• and
• in response to determining based on the indication that there is no existing N2 connection for the RG connected to the line on which the registration request is received at the W-AGF, reject the registration request of the AUN3 device.