Question: In a CN-initiated selective deactivation of a UP connection for an existing PDU Session associated with W-5GAN Access on a 5G-RG/FN-RG in CM-CONNECTED state, how is the user plane resource between the 5G-RG/FN-RG and W-AGF released?
Option 1: Via RRC signalling, as specified for NG-RAN scenarios.
Option 2: Automatically upon PDU Session modification.
Option 3: Through a procedure within the scope of BBF/Cablelabs, not using RRC signalling.
Option 4: Manually by the network operator through a dedicated management interface.
Explanation: This is because, in the context of W-5GAN Access for a 5G-RG/FN-RG, an exception to the standard NG-RAN procedure (which would use RRC signalling) is made. Instead, the release of user plane resources between the 5G-RG/FN-RG and W-AGF is managed through procedures defined by BBF/Cablelabs, highlighting the convergence aspects of wireline and wireless access in 5G networks.