A method for sending and receiving main notification messages of an earthquake and tsunami warning system

Abstract

The invention discloses a method for sending a main notification message of an earthquake and tsunami early warning system ETWS. After receiving a main notification message of an ETWS, a base station sends a paging message to a terminal within the current system message modification period, and the paging message carries ETWS The basic information part of the main notification message; the base station broadcasts the system message including the security information part of the ETWS main notification message in the next system message modification cycle. The invention also discloses a method for receiving the ETWS main notification message. The terminal receives the paging message, reads the basic information part of the ETWS main notification message carried in the paging message; Mainly notify the system messages in the security information part of the message to verify whether the basic information is true. The invention only slightly modifies the base station and the terminal, and realizes the time delay requirement that the ETWS main message notification arrives at the terminal within 4 seconds.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for sending and receiving main notification messages of an earthquake and tsunami early warning system. Background technique [0002] In order to actively respond to natural disasters such as earthquakes and tsunamis, it is necessary to establish an ETWS (Earthquake and Tsunami Waming System, Earthquake and Tsunami Early Warning System). By using this system, when an earthquake and tsunami natural disaster occurs, disaster-related information can be sent to users in a timely manner, thereby reducing the impact of the earthquake and tsunami natural disaster on human beings. [0003] figure 1 It is a network structure diagram of a PLMN (public land mobile network) operator providing earthquake and tsunami warning services to users through the ETWS system. When a disaster event is about to occur or occurs, the government or other institutions issue an alarm notification to the P...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to propose a method for sending and receiving the main notification message of the earthquake and tsunami early warning system, which overcomes the problems that the existing method leads to the segmentation of the main notification message and the modification of the structure of the existing paging message, and It can meet the requirements of the main notification message of the earthquake and tsunami warning system to reach the terminal within 4 seconds

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