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Content for  TS 22.168  Word version:  8.3.0

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0  IntroductionWord‑p. 4

Earthquake and Tsunami Warning System (ETWS) introduces a means to deliver Warning Notification simultaneously to many mobile users who should evacuate from approaching Earthquake or Tsunami. Mobile user who received Warning Notification is able to know a threat is approaching or already happened nearby. Then the user is able to determine where and when to evacuate according to delivered Warning Notification. Mobile phone is a kind of the closest media for people. This system helps people to prevent from disaster situation or mitigate damage.
The characteristic of this service is the need of quick and optimised information delivery. Currently, it is not possible to know beforehand the fact that an Earthquake is imminent.
The Japanese government intends to create Earthquake early detection systems, which is called Earthquake Early Warning (EEW) System, during 2007 and expects that mobile operators study the feasibility of realizing a system for delivering Earthquake Early Warning information to mobile phone users.
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1  ScopeWord‑p. 5

This Technical Specification defines the stage one description of the Earthquake and Tsunami Warning System (ETWS) Requirements. Stage one is the set of requirements seen primarily from the users' and service providers' points of view.
This TS includes information applicable to network operators, service providers, terminal and network manufacturers, in case of deployment of ETWS. ETWS deployment depends on operator decision or national regulations.
This TS contains the core requirements for the Earthquake and Tsunami Warning System, which are sufficient to provide a complete service.
This TS also contains regional requirements for Earthquake and Tsunami Warning System.
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2  References

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
  • References are either specific (identified by date of publication, edition number, version number, etc.) or non specific.
  • For a specific reference, subsequent revisions do not apply.
  • For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]
TR 21.905: "Vocabulary for 3GPP Specifications"
[2]
TR 22.968: "Study for requirements for a Public Warning System (PWS)"
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3  Definitions and abbreviations

3.1  Definitions

For the purposes of the present document, the terms and definitions given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.
Earthquake and Tsunami Warning Service:
is a service that delivers Earthquake and Tsunami Warning Notifications provided by Warning Notification Providers to the UEs which have the capability of receiving Warning Notifications within Notification Areas through the 3GPP network.
Earthquake and Tsunami Warning System:
is a subsystem of Public Warning System that delivers Warning Notifications specific to Earthquake and Tsunami provided by Warning Notification Providers to the UEs which have the capability of receiving Warning Notifications within Notification Areas through the 3GPP network.
Notification Area:
is an area where Warning Notifications are sent.
Primary Notification:
is information which is used specifically in Earthquake and Tsunami Warning System in order to notify users about the most urgent event in seconds rather than minutes, such as imminent occurrence of Earthquake.
Secondary Notification:
is information which is used specifically in Earthquake and Tsunami Warning System in order to notify users supplementary information that is of lesser urgency such as instructions on what to do / where to get help, for example, map to refuge facilities, time table of food distribution. These information, in general, would be issued by local government.
Warning Notification Provider:
is an agency (e.g. government, local government, public service organisations) that provides Warning Notifications and requests PLMN operators to deliver them.
Warning Notification:
is information which notifies users of the imminent occurrence of the events and may provide users with additional information, such as instructions on what to do / where to get help as long as the emergency lasts. Warning Notification is classified into two types depending on the urgency, which are Primary Notification and Secondary Notification.
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3.2  AbbreviationsWord‑p. 6

For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.
EEW
Earthquake Early Warning
ETWS
Earthquake and Tsunami Warning System

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