This TS describes the Cell Broadcast short message service (CBS) for GSM and UMTS.
For GSM it defines the primitives over the Cell Broadcast Centre - Base Station System (CBC-BSS) interface and the
message formats over the Base Station System - Mobile Station (BSS-MS) interface for Teleservice 23 as specified in TS 22.003
For UMTS it defines the interface requirements for the Cell Broadcast Centre – UMTS Radio Network System (RNS)
interface and the radio interface requirements for UMTS Radio Acces Networks to support CBS as specified in
This TS also describes the Public Warning System (PWS) for GSM, UMTS and E-UTRAN, see