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ISDB-T Harmonization document for digital terrestrial television
Part 3: Emergency Warning Broadcast System (EWBS)
1 Scope
This document summarizes the common rules of the emergency warning broadcast system (EWBS)
applied to the participants ISDB-T countries, comprising the signals transmitted by the broadcast
stations and its interpretation by compliant receivers.
The purpose of this document is clarifying technical and operational guideline of EWBS. The question
whether EWBS function would be mandatory or not on general ISDB-T receivers is out of scope. Such
a decision shall be made after careful evaluation that is, the adequate feasibility study by responsible
agency of each country and the development of sustainable receivers by manufactures would be done
together.
This document was produced based on Japan’s EWBS operational rule with some modifications on it in
order to meet the requirements of Latin American countries. Considering that Japan is already
operating EWBS with its original standard, Japan is the exception of applying this harmonization
document.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ABNT NBR 15604:2008, Digital terrestrial television – Receivers
ABNT NBR 15606, Digital terrestrial television — Data coding and transmission specification for digital
broadcasting
ABNT NBR 15608-3, Digital terrestrial television — Operational guideline — Part 3: Multiplexing and
service information (SI)
ARIB STD-B10:2008, Service information for digital broadcasting system
ARIB STD-B21:2007, Receiver for digital broadcasting
ARIB STD-B24:2008, Data coding and transmission specification for digital broadcasting
ARIB STD-B31:2005, Transmission system for digital terrestrial television broadcasting
ARIB TR-B14:2006, Operational guidelines for digital terrestrial television broadcasting
Harmonization document between ABNT NBR 15604 and ARIB STD- B21:2009, Digital terrestrial
television broadcasting – Receivers
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
Activation flag
Information contained in the Transmission and Multiplexing Configuration Control signal (TMCC) for the
activation of EWBS
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desay_yy2016-08-09这个文件是讲得很详细的，连参与订制的国家都有写
