本标准描述了5G系统（5GS）公共警报系统（PWS）在无线紧急警报（WEA）3.0消息广播中的使用，包括将WEA 3.0应用级消息映射到5GS中使用的小区广播中心功能（CBCF）消息结构。

This Standard describes the use of the 5G System (5GS) Public Warning System (PWS) for the broadcast of Wireless Emergency Alert (WEA) 3.0 messages and includes the mapping of WEA 3.0 application level messages to the Cell Broadcast Center Function (CBCF) message structure as used within the 5GS.