Public Warning System - Warning Messages - Transmission of CMAS notification via SIB12

[dsilhavy]

Feature Description

ETSI 103.720 v1.2.1 defines the support for a Public Warning System (PWS). Section 5.15.3.3 deals with sending alerts via the E-UTRAN Uu downlink in System Information Block (SIB) broadcast messages. SIB12 contains the Common Mobile Alert Services (CMAS) notification for PWS.

Details of the SIB12 message are specified in clauses 5.2.2.19 and 6.3.1 of ETSI TS 136 331.

Implementation

The goal of this ticket is to implement codification and transmission of the SIB12 message using dummy data in srsRAN_4G.

[dsilhavy]

A first version of SIB12 transmission has been implemented by @jordijoangimenez in :

• https://github.com/5G-MAG/rt-mbms-tx-for-qrd-and-crd/tree/emergency-alerts
• Addition of SIB12 for Emergency Alerts to CRDs rt-mbms-tx-for-qrd-and-crd#2
• Documentation updates rt-mbms-tx-for-qrd-and-crd#4

Next step is to edit the default messages to add custom text and potentially also custom images

[dsilhavy]

Created a separate issue for custom alerts: 5G-MAG#5

Closing this one