5th Emergency Service Coordination Workshop 3GPP ETWS Update (Material primarily provided by Itsuma Tanaka of DoCoMo). Deb Barclay Alcatel-Lucent October 2008. 1. Background.
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Though many regional requirements for PWS are being discussed or are expected to be discussed, there is already a region where Earthquake Early Warning system is required urgently to help mitigate human and social damages: Japan.
(Approved ETWS WID in SP-070815)
Earthquakes in Japan: 1970 - 2008
Japan – Famous for its high number of earthquake occurrences
ETWS in 3GPP started upon strong request from Japanto standardize Earthquake (and Tsunami) warning for mobile phones. NTT DOCOMO led the standardisation.
Notify users about the most urgent event in 4 sec, such as imminent occurrence of Earthquake.
Notify users supplementary information that is of lesser urgency such as instructions on what to do / where to get help
ETWS is based on CBS (TS 23.041)
Existing CBS is enhanced so that network can remotely activate UE
to receive warning information.
2. Broadcast Request
(Optional Primary Notification)
4. CBS Broadcast
Rel.8 Stage 3 work for E-UTRAN is ongoing in 3GPP