Public Alerting over Long Term Evolution (LTE) Wireless Networks – Technology Overview


  1. Fournier, J.
  2. Lucente, C.
Corporate Authors
Defence Research and Development Canada, Centre for Security Science, Ottawa ON (CAN)
The purpose of this Scientific Brief is to provide a high-level overview of two approaches for wireless dissemination of alert messages over 4G LTE networks. This was requested after a DRDC-Centre for Security Science briefing on Wireless Alerting in August 2015. A detailed technical advisory note on this topic was prepared by DRDC in April 2015 at the request of the CRTC [1]. A public alerting system provides emergency management organizations the tools to warn and inform the public in times of impending emergencies such as hurricanes, tornados, floods, forest fires, explosions, child abductions, etc. An effective public alerting system helps limit or prevent social, economic, physical, and human losses that can occur during such emergencies. Typically, alerting systems broadcast warning messages using radio, television, social media, and reverse-911 calls to landline phones. However, given the rapidly increasing number of mobile devices operating over different wireless access technologies, the need to leverage mobile wireless networks for public alerting in times of crisis becomes evident. Figure 1 illustrates the envisioned flow of alert messages within a Canadian public alerting system. The wireless public alerting function is highlighted in the figure.
wireless;public alerting
Report Number
DRDC-RDDC-2015-B038 — Scientific Brief
Date of publication
18 Dec 2015
Number of Pages
Electronic Document(PDF)

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