HOME   Cart(0)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189759 (19 Oct 2025)

GY/T 341-2020 English PDF

US$379.00 ยท In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GY/T 341-2020: (Technical Specification for Networking of Terrestrial Digital TV Broadcast Single Frequency Network Based on IP Transmission)
Status: Valid
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GY/T 341-2020English379 Add to Cart 4 days [Need to translate] (Technical Specification for Networking of Terrestrial Digital TV Broadcast Single Frequency Network Based on IP Transmission) Valid GY/T 341-2020

Standard similar to GY/T 341-2020

GY/T 398.1   

Basic data

Standard ID GY/T 341-2020 (GY/T341-2020)
Description (Translated English) (Technical Specification for Networking of Terrestrial Digital TV Broadcast Single Frequency Network Based on IP Transmission)
Sector / Industry Radio, Film & TV Industry Standard (Recommended)
Word Count Estimation 15,116
Date of Issue 2020-12-31
Date of Implementation 2020-12-31
Older Standard (superseded by this standard) NY/T 356-1999; NY/T 951-2006
Regulation (derived from) Broadcasting-TV announcement (2020) No. 93
Issuing agency(ies) State Administration of Radio and Television

GY/T 341-2020: (Technical Specification for Networking of Terrestrial Digital TV Broadcast Single Frequency Network Based on IP Transmission)


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Technical specification for single frequency network of digital terrestrial television broadcasting over IP network The People's Republic of China Radio, Television and Network Audiovisual Industry Standards Terrestrial Digital TV Broadcasting Single Frequency Network Based on IP Transmission Networking technical specifications 2020-12-31 released 2020-12-31 implementation Issued by the State Administration of Radio and Television 1 Scope...1 2 Normative references...1 3 Terms, definitions and abbreviations...1 3.1 Terms and definitions...1 3.2 Abbreviations...1 4 System description...2 5 Technical requirements...2 5.1 Overall...2 5.2 Single frequency network adapter...2 5.3 Digital terrestrial television broadcasting transmitter...3 5.4 Reference clock signal source...3 5.5 IP/ASI Gateway...3 5.6 IP transmission network...3 6 Measurement method...3 6.1 Single frequency network adapter...3 6.2 Digital terrestrial television broadcasting transmitter...3 6.3 Reference clock signal source...3 6.4 IP/ASI Gateway...3 6.5 IP transmission network...3 Appendix A (informative) The relationship between TS stream rate and IP signal rate after adaptation...6 Appendix B (informative) IP network unidirectional transmission and round-trip transmission performance index conversion...8 References...11

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents. This document is under the jurisdiction of the National Radio, Film and Television Standardization Technical Committee (SAC/TC 239). This document was drafted by. Radio and Television Planning Institute of the State Administration of Radio and Television, Qinghai Provincial Radio and Television Monitoring Center, Beijing University of Posts and Telecommunications, Jiangsu Radio and Television General Station. The main drafters of this document. Gao Yang, Liu Jun, Chang Jiang, Cao Zhi, Dai Ming, Zhou Xingwei, Gao Li, Xiang Dong, Jiang Zhuqing. Technical Specification for Networking of Terrestrial Digital TV Broadcasting Single Frequency Network Based on IP Transmission

1 Scope

This document specifies the technical specifications for single-frequency terrestrial digital TV broadcasting in accordance with GB 20600-2006 based on IP transmission. This document is applicable to the construction of single-frequency network of terrestrial digital television broadcasting system in accordance with GB 20600-2006 based on IP transmission, as an IP-based transmission Technical basis for the project design and project acceptance of the transmitted terrestrial digital TV broadcast single frequency network project.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated reference documents, Only the version corresponding to that date is applicable to this document; for undated references, the latest version (including all amendments) is applicable to this document file. GB/T 28433-2012 Single frequency network technical requirements for terrestrial digital TV broadcasting GB/T 28434-2012 Technical requirements and measurement methods for single-frequency network adapters for terrestrial digital TV broadcasting GB/T 28435-2012 Technical requirements and measurement methods for terrestrial digital TV broadcast transmitters GB/T 34995-2017 Technical requirements and measurement methods for single frequency network timing receiving equipment GD/J 121-2020 Technical requirements and measurement methods for IP/ASI gateways in program distribution networks 3 Terms, definitions and abbreviations 3.1 Terms and definitions The following terms and definitions apply to this document. 3.1.1 Single frequency network A terrestrial digital television coverage network composed of multiple transmitters located in different locations and in a synchronized state. Each transmitter in the network Transmit the same modulated radio frequency signal at the same frequency and at the same time to achieve reliable coverage of a specific service area. 3.2 Abbreviations The following abbreviations apply to this document. ASI asynchronous serial interface (Asynchronous Serial Interface) FEC Forward Error Correction IP Internet Protocol (Internet Protocol) IPDV IP packet delay variation (Internet Protocol packet Delay Variation) IPER IP packet error rate (Internet Protocol packet Error Ratio) IPLR IP packet loss rate (Internet Protocol packet Loss Ratio) IPTD IP packet transfer delay (Internet Protocol packet Transfer Delay) RF (Radio Frequency) RTP Real-time Transport Protocol SIP Second Frame Initialization Packet TS Transport Stream UDP User Datagram Protocol (User Datagram Protocol)

4 System description

According to the technical principle of the single frequency network, a schematic diagram of the networking mode of the terrestrial digital TV broadcasting single frequency network based on IP transmission is shown in Figure 1. The system mainly includes single frequency network adapter, terrestrial digital TV broadcast transmitter, reference clock signal source, ASI-IP adapter, IP-ASI adaptation And IP transmission network.

5 Technical requirements

5.1 Overall The synchronization of terrestrial digital TV broadcasting single frequency network, signal distribution network, clock reference, radio wave polarization and station spacing should comply with GB/T 28433 -Technical requirements in.2012. 5.2 Single frequency network adapter Realize the functions of SIP packet insertion and code rate adaptation, and complete the conversion from the input TS stream to the single-frequency network adaptation TS stream, which should comply with GB/T 28434- Technical requirements in.2012. 5.3 Digital terrestrial television broadcasting transmitter The realization of channel coding, synchronous modulation, up-conversion, power amplification and signal transmission shall meet the technical requirements in GB/T 28435-2012. 5.4 Reference clock signal source Provide a unified 10MHz reference frequency and 1pps reference time for each node equipment of the single frequency network system, which shall comply with GB/T 34995- Technical requirements in.2017. 5.5 IP/ASI Gateway Contains ASI-IP adapter and IP-ASI adapter to realize the transmission of TS stream on IP network, which should conform to the technology in GD/J 121-2020 Claim. 5.6 IP transmission network The IP transmission network realizes the program distribution from the program source to each transmitting station. The technical requirements of the IP transmission network should meet the requirements of Table 1. Table 1 Technical requirements of IP transmission network

6 Measurement method

6.1 Single frequency network adapter It shall comply with the measurement method in GB/T 28434-2012. 6.2 Digital terrestrial television broadcasting transmitter It shall comply with the measurement method in GB/T 28435-2012. 6.3 Reference clock signal source It shall comply with the measurement method in GB/T 34995-2017. 6.4 IP/ASI Gateway It shall comply with the measurement method in GD/J 121-2020. 6.5 IP transmission network 6.5.1 Standard measurement method 6.5.1.1 Measurement block diagram The equipment required for the standard measurement method of IP transmission network performance indicators includes 2 IP transmission testers and 2 reference clock signal sources, respectively Connected to the entrance and exit of the IP transmission network to be tested, the measurement block diagram is shown in Figure 2. 6.5.1.2 Measurement procedure The standard measurement procedure is as follows. a) Accurately connect the measurement system according to Figure 2 to ensure that the equipment is working normally and that the IP transmission network is consistent with the actual service carrying status. b) When the reference clock signal source enters the locked state, a stable time reference signal is output to keep the two IP transmission testers synchronized. c) Start the IPTD, IPDV, IPLR and IPER test functions of the IP transmission tester respectively. The IP packet length is set to 1500 bytes. The data rate RIP is set to the actual transmission required rate after considering the TS stream bit rate and network protocol overhead, see the formula in Appendix A (A.1) ~ Formula (A.4). The measurement time of IPTD and IPDV should be guaranteed to be 5min...

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GY/T 341-2020_English be delivered?

Answer: Upon your order, we will start to translate GY/T 341-2020_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GY/T 341-2020_English with my colleagues?

Answer: Yes. The purchased PDF of GY/T 341-2020_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.