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JBE, vol. 26, no. 5, pp.592-598, September, 2021


A Display Method of Image Information and URL Using the Message Structures of Emergency Alert Broadcasts for 5G Cellular Communications

Sekchin Chang

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Current cellular systems rely on a CBS protocol for emergency alert broadcast services. However, the CBS protocol just specifies the delivery of a limited text message. Therefore, foreigners, who are unfamiliar with local characters, may have some difficulties in understanding the received CBS text message. The CBS protocol also reveals a distinct restriction in delivering abundant information because of a limited number of text characters. In order to overcome the weak points of the current CBS protocol, we propose a display method of image information and URL on the screens of mobile terminals for the received CBS text message in this paper. The presented approach effectively utilizes the message structure of CBS for 5G cellular systems.   

Keyword: Image Information, Message Structure, Cell Broadcast Service, 5G Cellular Communications

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[5] National Disaster Management Research Institute: A Research on Technology Survey and Domestic and Global Standard Development for Image Delivery in Korean Public Alert System (KPAS), Nov. 2019.
[6] ATIS-0700041: Wireless Emergency Alerts (WEA) 3.0: Device-Based Geo-Fencing, May 2019.
[7] FCC 18-4: Second Report and Order and Second Order on Reconsideration, Jan. 2018.
[8] 3GPP TS 23.038 V16.0.0: Alphabets and Language-Specific Information, Release 16, July 2020.
[9] TTAK.KO-06.0263/R4: Requirements and message format for Korean Public Alert System over mobile network, June 2019.
[10] Code of Federal Regulations (CFR) Title 47 Part 10: Wireless Emergency Alerts, May 2021.
[11] 3GPP TS 23.041 V16.2.0: Technical Realization of Cell Broadcast Service (CBS), Release 16, Dec. 2019.
[12] ATIS-0700023: Feasibility Study for LTE WEA Message Length, Oct. 2015.


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