SNPN Roaming Group Registration for Scalable Network Discovery

The patent segments the list of supported home service providers into multiple groups, where each group is identified by a unique group identifier. Instead of maintaining one comprehensive list, the V-SNPN maintains multiple smaller grouped lists, reducing the complexity of managing individual SP entries while preserving the ability to support a large number of home SPs through efficient grouping and matching mechanisms.

The patent merges multiple home service provider identifiers into grouped representations, where each group identifier represents multiple home SPs. This consolidation reduces the total number of identifiers that need to be broadcast over the radio interface, thereby reducing radio resource consumption while still providing comprehensive network discovery information to devices through the grouped structure.

The patent implements preliminary action by pre-establishing grouping structures and assigning group identifiers to sets of home service providers before actual roaming operations. This advance organization allows the system to scale efficiently, as new home SPs can be added to existing groups or assigned to new groups without requiring fundamental changes to the system architecture, thereby maintaining roaming compatibility while enhancing scalability.