Question: In a Shared E-UTRAN/NG-RAN scenario, what is a requirement for broadcasting Public Warning System (PWS) messages, considering regulatory obligations of Participating Operators?
Option 1: Each Participating Operator must have a dedicated PWS core network entity within the shared infrastructure.
Option 2: The Shared E-UTRAN/NG-RAN can only broadcast PWS messages from a single, designated Participating Operator's core network.
Option 3: All Participating Operators must share a common external PWS service provider for message broadcasting.
Option 4: The Shared E-UTRAN/NG-RAN must be capable of broadcasting PWS messages originated from the core networks of all Participating Operators.
Explanation: This is correct because, as per the requirements for Shared E-UTRAN/NG-RAN support of Public Warning Systems (PWS), the shared network infrastructure needs to accommodate regulatory obligations of all participating operators. This means it must be able to broadcast PWS messages from any of the participating operators' core networks, ensuring compliance with various regulatory requirements without necessitating a common PWS core for all.