Method and system for releasing information of an earthquake and tsunami warning system

Abstract

The invention discloses a method for releasing information of an earthquake and tsunami warning system. The method includes: a base station sends information to verify the public key in the key pair; a mobile terminal receives and stores the public key; and the base station uses information to verify the private key in the key pair. The key digitally signs the ETWS initial information, adds the ETWS initial information and digital signature to the paging message and sends it; the mobile terminal receives the paging message, and uses the digital signature and stored public key carried by the received paging message to Verify the ETWS initial information carried by the received paging message, and issue a disaster alert based on the verification result. The invention also discloses an information release system of an earthquake and tsunami warning system, which includes a base station and a mobile terminal. By adopting the method and system of the present invention, ETWS information can be released safely and in time.

Description

technical field [0001] The present invention relates to an earthquake and tsunami warning system (Earthquake and Tsunami Warning System, ETWS), in particular to an ETWS information publishing method and system. Background technique [0002] ETWS is a warning system for natural disasters proposed by the 3rd Generation Partnership Project (3GPP). ETWS is used to notify natural disasters through mobile communication networks. Since the mobile communication network covers almost the whole world and the popularity of mobile terminals, ETWS has a good application prospect. [0003] Currently, ETWS information is published in the following ways: [0004] 1. Send ETWS information through the paging channel; due to the limited capacity of the paging channel, the amount of information carried by a single paging message body cannot be too large, so that the ETWS information that the paging message can carry cannot be too large, and can only include Some brief information related to t...

AI Technical Summary

Problems solved by technology

[0005] 2. Send ETWS information through the broadcast channel; this method has poor real-time performance due to the periodic time interval between receiving and publishing messages on the broadcast channel, and the time interval between the time when the disaster is usually detected and the time when the disaster actually occurs is very short Short, especially for sudden natural disasters, before the disaster occurs, it may not be possible for each mobile terminal to receive ETWS information in time, and it will not be able to play an alarm role;

[0006] 3. Send ETWS information through the Enhanced Multimedia Broadcast and Multicast Service (E-MBMS); this method will prevent a large number of mobile terminal users who do not use this service from receiving disaster warnings due to the fact that the current E-MBMS is not widely used.

[0007] In order to avoid the problems in the above methods, the method of sending ETWS initial information through the paging channel and sending ETWS detailed information and verification information through the broadcast channel is often used at present, but the authenticity of the ETWS initial information sent by the paging channel in this method requires The verification information of the broadcast channel is verified, and people will take defensive measures as soon as they get the alarm. After receiving the verification information sent by the broadcast channel, the false alarm may have caused harm and disrupted people's daily work and life. ; It can be seen that how to release ETWS information safely and avoid the dissemination of malicious and fake ETWS information is an urgent problem that ETWS needs to solve at present

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