On May 28th, the exhibition was officially opened. The China Radio and Television Exhibition Hall exhibited the development chapter of "One National Network", 5G broadcasting and intelligent radio and television.
Everyone is full of expectations for the reconvened CCBN meeting after the epidemic. At the weathervane conference of this industry, China Radio and Television also celebrated its 7th birthday. Today's manuscript, Tech, shows readers the wonderful dry goods of CCBN202 1 on China Radio and Television.
I. Speech by Chairman Song
On the morning of May 27th, Song, Chairman of China Radio and Television Station, gave a keynote speech entitled "Building a Powerful Radio and Television Network and Leading the Digital Intelligence Era". According to the content of the speech, I briefly combed the following main points of the speech.
1, 7th anniversary of its establishment
On May 28th, the second day of CCBN conference, China Radio and Television Network Co., Ltd. will also celebrate its seventh anniversary.
Seven years ago, China Radio and Television was born in response to the strategy of strengthening the central network and integrating the three networks, shouldering the historical responsibility of promoting the integration and development of the national cable TV network. Seven years later, under the guidance and promotion of the policy of "National Cable TV Network Integration and Radio and Television 5G Construction Integration Development", the radio and television network industry in China has embarked on a new track and started a new journey.
2. About Radio and Television 5G
Enjoy the rapid construction of a new minimalist 5G network through * * *. Chairman Song said that * * * building * * enjoyment is the first choice for radio and television 5G to make up the shortcomings and start quickly. Deepen the strategic cooperation between * * * and * *, build a minimalist 5G network, and realize the national coverage of radio and television 5G networks as soon as possible. At present, we have signed a * * * * sharing agreement with China Mobile, formulated a construction plan to achieve full network coverage within two years, completed equipment selection and technical testing, and are advancing the construction of the 5G 700MHz network of radio and television as planned. At the same time, we have refined and improved the plan of "operating while building", and will implement the national numbering of 192 in an orderly manner.
3. "Cable+5G"&; "TV+Broadband +5G+ Direct Broadcasting Satellite +X"
Radio and TV networks will give full play to the advantages of "wired +5G" communication, deeply participate in the integration and innovation of media production, production, storage and distribution, and jointly build a new pattern of "5G+4K/8K+AI" media communication.
Intelligent life is inseparable from intelligent broadband network. Chairman Song proposed that China Radio and Television would take broadband services based on cable and 5G as strategic basic services, and on this basis, innovate and develop broadband TV, smart home and other services, and build a fully integrated business system of "TV+broadband +5G+ direct broadcast satellite +X", so as to continuously improve the quality of broadband services and the scale of users, promote the mutual transformation of fixed mobile users, and steadily increase the market share of radio and television networks.
4, "Killer" 5NR broadcast
China Radio and Television will actively build a "smart radio and television+public * * * service" model, and take good social responsibilities with practical actions.
Accelerate the construction of 5NR broadcasting and television system, making it the killer of differentiated services of broadcasting and television networks. Actively participate in the construction of civilized practice center and media integration center (platform) in the new era, and implement high-standard key projects such as smart radio and television border fixing, smart radio and television villages (towns), popularization of cable high-definition interactive digital TV set-top boxes in ethnic areas, emergency broadcasting, and national cultural big data system to promote the coordinated development of urban and rural public services. Serve the rural revitalization strategy, actively participate in the universal service of telecommunications, and promote the extension and coverage of cable networks and radio and television 5G to remote areas. At the same time, in accordance with the strategic layout of "One Belt, One Road", we will go out and expand overseas intelligent radio and television network construction, platform operation and technical service market.
At the end of the speech, Song said that the transformation of radio and television network has reached a critical juncture of climbing over the ridge and rolling stones up the mountain. China Radio and Television should strengthen the standing consciousness of "integrating into the center and serving the overall situation", adhere to the reform methodology of "crossing the river by feeling the stones" and practice the development concept of "openness and integration".
Two. Speech by Deputy General Manager Ceng Qingjun
On the afternoon of May 27th, Ceng Qingjun, deputy general manager of China Radio and Television, delivered a speech with the theme of "5G Broadcasting Construction in China Radio and Television". Zeng always answered a question at the beginning of his speech: What is the necessity of doing 5G broadcasting? (For the full content of the speech, please click: "China Radio and Television Ceng Qingjun: 5NR Broadcasting Service and APP Construction")
Ceng Qingjun said that whether it is broadband or narrowband, when a base station has many users, the competition and collision of this channel will inevitably lead to a decline in efficiency, so in this case, broadcasting has its outstanding advantages. In addition, although the bandwidth of 5G is very wide, the application bandwidth of users is endless. The contradiction between the two requires us to use efficient technology to distribute more content in limited wireless channels. Therefore, broadcasting is not only an outdated technology, but also very necessary in 5G and future 6G.
What are 1 and 5G broadcasting?
5G NR broadcasting can adopt unicast, multicast and broadcast methods, and provide new interactive video broadcasting services and converged information services to various intelligent terminals by using mobile cellular base stations and radio and television towers.
Advantages include: realizing dynamic seamless switching of unicast or broadcast services; Flexible business forms, supporting traditional TV channel broadcasting and new interactive video broadcasting services, as well as integrated information broadcasting services; Widely adapt to various types of 5G standard universal terminals; It can continuously cover various scenes in depth on the 5G universal terminal; Based on "free air" and SIM card-free mode, 5G broadcasting will be able to achieve universal 5G terminal reception across operators.
2. Participate in the formulation of international and domestic 5G broadcasting standards.
Since 20 19, China Radio and Television has actively participated in the formulation of new standards with domestic and foreign partners. In the second half of that year, 3GPP successfully established a 5G broadcast multicast project. At present, China Radio and Television has taken the lead in formulating dozens of manuscripts and proposals, and gradually opened up the framework and technical implementation specifications of the entire 5G broadcasting.
With the help of industry partners for more than a year, dozens of units around the world, China Radio and Television, have jointly completed the main work of standardization of 5G broadcasting. In addition to 3GPP, China Radio and Television also actively promotes standards. After participating in the interconnection standards working group of the Ministry of Industry and Information Technology and domestic organizations such as china communications standards association, the domestic standards will be formulated within the domestic framework. At the same time, China Radio and Television has joined ITU Broadcasting Group, and is actively promoting related work, and will share new ideas of China Radio and Television industry with the world.
From the end of last year to June this year, 5438+ 10, China Radio and Television conducted a 5G NR broadcast test in Beijing. By dynamically using part of the bandwidth of 700MHz, TV signals are transmitted in 5G mode through large and small transmission towers, and then mobile phones can receive both cellular network signals and TV tower signals.
3. Promote the test and verification of 5NR broadcasting in an orderly manner.
For the old version of the mobile phone terminal at this stage, it is necessary to upgrade the software at that time. Ceng Qingjun said that by the time of the Beijing Winter Olympics, China Radio and Television will launch a 700MHz network that can broadcast scenes in 5G, and users can meet the application requirements through continuous software upgrades. At that time, both the terminal and the base station can successfully reach the second stage, and some new versions of commercial mobile phones will be launched in time before the Winter Olympics, so there is no need to update the software of mobile phones.
Radio and TV 5G will realize the collaborative construction of "network+platform+product+operation", and use the combination of 5G cellular network and TV tower to promote 5G broadcasting business, establish a unified operation platform (covering three platforms: content, broadcasting control and operation), and enrich broadcasting products (including 5G NR broadcasting, emergency broadcasting, special APP for specific scenes, etc.). ) Realize the reception of the user's general terminal of 5G mobile phone.
Scenario Application of 4.5G Broadcasting
In the overall planning of 5G report construction, the overall goal of 5G broadcasting in the future is mainly in three aspects:
1) build a mixed coverage of TV towers and cellular base stations, and build a coordinated development of 5G radio and television networks;
2) Create traditional radio and television channel broadcasting service, new interactive video broadcasting service and comprehensive information broadcasting service;
3) Continue to build efficient and agile network operation and operation and maintenance capabilities.
It is reported that China Radio and Television is also developing and testing an APP with 5G broadcasting service, which covers a wealth of video resources, such as live channels, VR videos, 360-degree full-scene videos, interactive videos and so on. In particular, support for watching live channel programs without traffic can bring better video experience to users.
3. China Radio and Television Station booth site
As the main part of the CCBN conference, the exhibition will attract a large number of industry partners to visit and understand. I have learned from Zhong Shi University of Technology that on May 28th, China Radio and Television Exhibition Hall will show you the development chapter of "One National Network", 5G broadcasting and intelligent broadcasting and television.
1, "National Networking"
2.5G broadcasting
3. Smart Radio and Television