What is splicing rtrs multiplex. TV broadcasting methods in the dvb-t2 standard with the insertion of regional content. Ad server functions

Keywords

STANDARD DVB-T2 / MULTIPLEX / FEDERAL TARGET PROGRAM / REGIONAL CONTENT / BACKGROUND NETWORK / REGIONAL NETWORK/ REPLACER / SFN NETWORK / SYNCHRONIZATION / PROTECTIVE INTERVAL/ MODULATION / CODING

annotation scientific article on electrical engineering, electronic engineering, information technology, author of the scientific work - Karyakin Vladimir Leonidovich, Karyakin Dmitry Vladimirovich, Morozova Lyudmila Aleksandrovna

An analysis of methods for organizing broadcasting of the First Multiplex in the DVB-T2 standard with an insert is presented regional content in various options for constructing single-frequency SFN networks for digital terrestrial broadcasting Russian Federation. There are problems with import substitution of distributed program modification technology using a replayer, since Enensys Technologies owns a Russian patent for the DVB-T2 broadcasting method with insertion regional content and a device used in this method. The disadvantage of those used in the Russian Federation technical solutions To implement the task of delivering the regional version of the First Multiplex, there is a need to broadcast combined T2-MI streams in different regions with uniform parameters set at the Federal Multiplexing Center (FCMC). The uniform parameters established in the FCFM lead to a number of problems associated with different broadcasting conditions based on the territorial location of transmitters, the type and intensity of interference, as well as due to different climatic and geographical conditions of broadcasting on the territory of the Russian Federation. The DVB-T2 broadcasting standard allows for a wide selection of parameters for the created SFN networks to adapt them to operating conditions. Choice required guard interval for a specific topology of transmitter placement. To ensure synchronous operation of single-frequency network transmitters, a time stamp is set based on the resulting time delays of the information signal. The choice of the pattern of carriers distributed in the frame and the type of modulation and coding speed depend on the type and intensity of interference and the geographic conditions of broadcasting. The lack of ability to choose optimal parameters in each region leads in aggregate to problems of ensuring the necessary margins of stability of SFN networks, assessed by the bit error rate, which can lead to disruption of the normal operation of networks (technical stoppages and technical defects) and underutilization of the capabilities of the created networks in terms of transmission speed information.

Text of scientific work on the topic “TV broadcasting methods in the DVB-T2 standard with the insertion of regional content”

TV BROADCASTING METHODS IN THE DVB-T2 STANDARD WITH INSERTING REGIONAL CONTENT

Karyakin Vladimir Leonidovich,

Doctor of Technical Sciences, Professor of the Department of Radio Communications, Radio Broadcasting and Television, Volga Region State University of Telecommunications and Informatics (PGUTI), Samara, Russia, [email protected]

Karyakin Dmitry Vladimirovich,

Ph.D., senior system engineer of the Russian representative office of Juniper Networks, Moscow, Russia, [email protected]

Morozova Lyudmila Alexandrovna,

Ph.D., Associate Professor, Department of Economics and Organization of Production, PSUTI, Samara, Russia, [email protected]

Key words: DVB-T2 standard, multiplex, federal target program, regional content, backbone network, regional network, replayer, SFN network, synchronization, guard interval, modulation, coding.

An analysis of methods for organizing broadcasting of the First Multiplex in the DVB-T2 standard with the insertion of regional content in various options for constructing single-frequency SFN digital terrestrial broadcasting networks in the Russian Federation is presented. Problems of import substitution of distributed program modification technology using a replayer are noted, since Enensys Technologies owns a Russian patent for the DVB-T2 broadcasting method with the insertion of regional content and the device used in this method. The disadvantage of the technical solutions used in the Russian Federation to implement the task of delivering the regional version of the First Multiplex is the need to broadcast combined T2-MI streams in different regions with uniform parameters established in the Federal Multiplexing Center (FCMC). The uniform parameters established in the FCFM lead to a number of problems associated with different broadcasting conditions based on the territorial location of transmitters, the type and intensity of interference, as well as due to different climatic and geographical conditions of broadcasting on the territory of the Russian Federation. The DVB-T2 broadcasting standard allows for a wide selection of parameters for the created SFN networks to adapt them to operating conditions. It is necessary to select a guard interval for a specific topology of transmitter placement. To ensure synchronous operation of single-frequency network transmitters, a time stamp is set based on the resulting time delays of the information signal. The choice of the pattern of carriers distributed in the frame and the type of modulation and coding speed depend on the type and intensity of interference and the geographic conditions of broadcasting. The lack of ability to choose optimal parameters in each region leads in aggregate to problems of ensuring the necessary margins of stability of SFN networks, assessed by the bit error rate, which can lead to disruption of the normal operation of networks (technical stoppages and technical defects) and underutilization of the capabilities of the created networks in terms of transmission speed information.

For quotation:

Karyakin V.L., Karyakin D.V., Morozova L.A. Methods of TV broadcasting in the DVB-T2 standard with the insertion of regional content // T-Comm: Telecommunications and transport. - 2016. - Volume 10. - No. 4. - pp. 41-46.

Karyakin V.L., Karyakin D.V., Morozova L.A. Methods of TV broadcasting in the standard DVB-T2 with inserts regional content. T-Comm. 2016. Vol. 10. No.4, pp. 41-46. (in Russian)

1. Introduction

The digital terrestrial television and radio broadcasting network of the Russian Federation in the DVB-T2 standard is intended to cover the population of the Russian Federation with digital broadcasting of the teleradio program package of the first multiplex in accordance with the Federal Target Program.

The list and order of television and radio programs included in the first multiplex are determined by the Decree of the President of the Russian Federation. At the same time, mandatory publicly available TV programs included in the first multiplex in each region are subject to modification in accordance with the requirements of broadcasting organizations.

The issue of choosing the architecture of the digital broadcasting distribution network is of particular importance, since the choice of this architecture directly determines the design of single-frequency SFN (Single Frequency Network) digital broadcasting networks in each region, the quality and cost of communication services provided by the Federal State Institution 11 "Russian Television and Radio Broadcasting Network (RTRS) to broadcasters.

One of the important criteria for the quality of communication services is the probability of technical defects and technical stops, i.e. the likelihood of disruptions to the normal operation of the digital television broadcasting network. A necessary condition High Quality digital radio and television broadcasting services is to ensure a certain margin of stability of SFN networks in terms of the number of bit errors when receiving programs from the First Multiplex in the service area.

Unlike DVB-T, the DVB-T2 broadcasting standard has greater flexibility in creating single-frequency SFN networks and includes a number of features that allow for more efficient regional modification of television and radio programs, especially when using satellite delivery of signals to transmitting stations.

Purpose of this work is an analysis of methods for organizing broadcasting of the First Multiplex in the DVB-T2 standard with the insertion of regional content in various options for constructing a digital terrestrial broadcasting network in the Russian Federation.

The digital terrestrial network of the Russian Federation consists of 82 regional networks, in the center of each of which there is a regional center for the formation of multiplexes (RCFM).

The federal version of the first multiplex and its temporary duplicates to ensure broadcasting in 5 broadcasting zones of the Russian Federation L, B, V, G and M must be delivered to all RCFM via satellite communication lines. The transmission of the First Multiplex signal via satellite communication lines is carried out in encrypted form.

To compare different options for building a network, it is accepted that in each region, with the exception of Moscow, the Moscow region, Sapkg-Petersburg and Leningrad region, three television and radio channels will be modified: “Russia 1”, “Radio Russia” and “Russia 24”,

2. Composition of the software network replacement system

digital terrestrial television and radio broadcasting of the Russian

Federations of the DVB-T2 standard

The software replacement system for the digital terrestrial television and radio broadcasting network of the DVB-T2 standard has a structure.

consisting of the federal program substitution complex (FKPZ) and the regional program substitution complex (RKPZ).

The FKPZ (Fig. 1) includes not only the equipment of the Federal Center for the Formation of Multiplexes (FCFM), but also part of the equipment of federal broadcasting companies, in particular, the equipment of the hardware studio complex (ASC), in which the generation of control signals for the replacement system is carried out.

dec ■ y l-* FCFM

; f Channels\delivery)

Federal Broadcaster 1 i Federal Broadcaster 2 \ Federal Broadcaster N:

Rice. I. Scheme of the federal complex of irogram substitution

The regional complex of program replacement includes the equipment of the regional center for the formation of the RCFM multiplex and the equipment of ASK of regional broadcasting companies. In addition, the RKPZ may include additional equipment located directly at radio and television transmitting stations (RTTS) of this region, in particular, equipment for inserting regional content - a replayer (Fig. 2).

ASK c RCFM

G Channels\

Regional broadcaster i | fc-ni dmtvvki)

: Regional Hangman 2

| Repin's broadcaster NÎ

Rice. 2. Scheme of the regional complex of program replacement

3. Schemes for constructing a digital terrestrial broadcasting network

A generalized diagram of the distribution network of the first multiplex is shown in Fig. 3.

The following abbreviations have been introduced here: FCFM - federal center for the formation of a multiplex; RCFM - regional center for multiplex formation; FASK - federal hardware and studio complex; PACK - regional hardware and studio complex; FNMS - federal terrestrial backbone network; RNRS - regional ground distribution network; PZSSS - peripheral earth station for satellite communications; Remote control DVB-S2 - transmitting device of the DVB-S2 standard; Remote control DVB-T2 - transmitting device of the DVB-T2 standard; PrU is a receiving device of the DVB-T2 standard.

Below we consider various options for the formation of a regional version of the First Television and Radio Broadcasting Multiplex and carried out comparative analysis these options in terms of the technical and financial resources that the implementation of each of them will require.

T-Comm Volume 10. #4-2016

T-Sott Volume 10. #4-2016

The use of this option was not provided for by system projects for the digital terrestrial broadcasting network in the Russian Federation, however, it is currently recommended)

What is splicing rtrs multiplex. TV broadcasting methods in the dvb-t2 standard with the insertion of regional content. Ad server functions

annotation scientific article on electrical engineering, electronic engineering, information technology, author of the scientific work - Karyakin Vladimir Leonidovich, Karyakin Dmitry Vladimirovich, Morozova Lyudmila Aleksandrovna

Related topics scientific works on electrical engineering, electronic engineering, information technology, author of the scientific work - Karyakin Vladimir Leonidovich, Karyakin Dmitry Vladimirovich, Morozova Lyudmila Aleksandrovna

Text of scientific work on the topic “TV broadcasting methods in the DVB-T2 standard with the insertion of regional content”