Deep ｜ Low -track broadband constellation 5G special network industry application discussion

I. Introduction

In recent years, my country's information and communication technology fields are in a critical period of comprehensive change. The ground mobile communication towards the 5G era with the characteristics of high -speed, low latency, and large -scale access. The technology has become mature. At the same time, the emerging satellite Internet space information technology represented by the low -orbit broadband constellation system has also become one of the important development directions with its global, full, and pan -broadband data access capabilities. The 5G and the Satellite Internet has become the representative technology of the development direction of the "Internet of Everything" and "Public Interconnection" in the communication field. Therefore, the heaven and earth integration communication between the satellite Internet and the ground 5G can play an irreplaceable role in the universal constraints of geographical conditions, and accelerate the integration of the satellite Internet and the information industry, which derives a new integrated communication application scenarios.

my country is currently in the era of high -speed information networks to promote the rapid development of socioeconomic and economy, but my country is vast, especially in the western region restricted by geographical and historical conditions, the information infrastructure is relatively lagging, the level of government and enterprise information and the people's acquisition of network information The ability is relatively weak. Especially with the start of the 5G in my country, the number of information in the East and West has intensified, and the need for convenient network information acquisition and communication methods is urgently needed to accelerate the communication of commodity information, simultaneously modern information society life and culture, and help the poverty alleviation, promote the government, and promote the government. Governance efficiency and the improvement of people's living standards provide information facilities for people to live better life. At the same time, the “Belt and Road” as an important initiative for “going global” in my country, countries along the route have broad market prospects. However, most of these countries are developing countries, and the relatively incomplete communication guarantee facilities have affected their economic construction speed and social development level. They urgently need to change the status quo. Overseas projects and national overseas assets of Chinese enterprises also urgently need reliable information service means to help Safeguard the interests of.

Second, the technical advantages of low -orbit satellite communication and 5G fusion

Low -orbit satellite communication is based on the Sky -based communication satellite constellation, facing large -scale dispersal, small concentrated user scenarios, low -orbit satellite communication broadband data transmission and high -speed communication advantages, especially in remote areas in the west, "Belt and Road" and other communication access points It has the advantage of low -cost broadband coverage when it is scattered. At the same time, the existing 5G network is based on the complete ground fiber support network to provide interconnected communication services. Because the ground fiber optic network is difficult to reach and the construction cost is high, the current 5G network is difficult to meet the remote areas of the west, the “Belt and Road” overseas security communication industries Actual demand. And low -orbit satellite communication can be low -cost and efficiently solve the problem of difficulty covering signals in remote areas and underdeveloped areas. Based on the Tianji Communication Satellite Constellation, it is a low -end industrial and mining in the west, the site of key overseas engineering, and overseas security communication overseas. High -efficiency solutions for cost wide -area broadband interconnection. Therefore, the satellite Internet and the ground network such as 5G networks will be a complementary relationship, which can meet the communication needs of the poor areas of information infrastructure, fill the information gap, and make the network connection may be convenient. Low cost and other characteristics. At present, the complementary cooperation and integration of the satellite Internet and the ground communication system have gradually entered the period of the Star Field Broadband Interconnection -the integration of the low -orbital satellite Internet and 5G can further play the advantages of both parties, forming a remote area in the west and the countries along the “Belt and Road”. It can quickly build, lightweight deployment of the all -in -one communication service system structure, and accompany the development of the western region of my country and the "Belt and Road" initiative, combining the development trend of the digital economy enable industry, in order to bridge the digital gap between the central and western parts of my country and open up the " The Belt and Road Initiative Corridor provides feasible solutions, and at the same time, rescue broadband information guarantee for the regional earthquake, tsunami, and other disaster disposal.

The technical advantages of low -orbit satellite communication and 5G fusion can be summarized as follows: wide -area broadband interconnection; large -capacity terminal and data access; support for delay sensitive applications; high reliability of system data; flexible service capabilities and customization.

Third, low -orbit broadband constellation 5G special network application architecture

The low -orbit broadband constellation 5G special network is mainly composed of the low -track constellation ground network system and the local 5G dedicated network. The low -track constellation ground network system is mainly responsible for the Internet interconnection of local data communication and external networks. Local 5G special networks are responsible for providing local data communication network services to provide personnel and devices with wireless interconnection. The framework of the low -track constellation 5G special network system is shown in Figure 1.

Figure 1 Low -track constellation 5G special network system framework

Based on the low -orbit satellite constellation, 5G special network, that is, the 5G local special network of 5G local special networks on the front line of the user, serving the high -speed broadband interconnection of local personnel and equipment. Equipment is responsible for the transmission of local data that interacts with external networks or public networks through the low -orbit satellite link. Therefore, it can give full play to the advantages of the digital transformation of the industry's digital transformation of the industry and the 5G special network, which can solve the poor information infrastructure or are not available in areas, such as remote areas in the west and the "Belt and Road" The country's industry user communication network needs. The low -orbit satellite 5G special network users can quickly deploy the low -orbit network base site without local communication infrastructure, and there is no need to purchase special terminals separately. The network construction is fast and the cost is low. When needed, it can be interconnected with the ground public network, and it also has the characteristics of the security of the dedicated network. In addition, the characteristics of rapid deployment of low -orbit 5G special networks in various regional environments, supporting a large number of users' high -speed, low latency, and global access are also of great significance for future military and special communication applications. Fourth, low -orbit broadband constellation 5G special network functional characteristics

1. Business demand does not rely on the wide area of ​​the ground network to be reliably connected

The low -orbital satellite 5G special network uses the heavenly foundation coverage to solve the problem of remote areas, the Belt and Road "and the external Internet broadband connection, and use the low -orbital satellite oversized bandwidth communication capabilities to complete the informatization data, production data and the real time of the Internet in remote areas. Synchronize.

2. 100M, Low Low Satellite Data Data Data Tianji Communication Service

Low -orbit satellite communication adopts lower track and high -throughput satellite technology, which can provide a single -end -end -end -of -end broadband communication access service, and provides fast and general network communications for remote areas.

3. Autonomous and controllable local wireless network, high data security and high reliability

Construct a special 5G special network in remote areas, and flexibly deploy lightweight core networks and base stations to form a local special network that can be relocated and expanded at any time at the scene. Essence

4. Special network equipment and networking architecture, the equipment deployment and expansion flexibly meet the relocation and expansion

The construction of low -track 5G special networks has a small dependence on infrastructure. It can flexibly carry out network relocation and capacity construction according to the construction status and business expansion.

5. Industrial -grade local massive data storage, processing, management and intelligent delay forwarding

Relying on the local 5G dedicated network to build a local informatization system, the intelligent application layers are conducted for different industrial applications, and large traffic data and real -time key data are graded to store and processed them. Intelligent delay in intelligent delay according to the low -orbit satellite communication link status, which is the user. Provide high cost -effective comprehensive satellite communication services.

6. Compatible with various types of data protocols, flexibly adapt to industry information services

Using low -orbit super two -way communication and 5G end data link capacity, support large traffic data synchronization, the Internet of Things, high -definition video surveillance, and real -time MR/VR maintenance.

5. Low -track 5G professional network industry application scenarios analysis

Low -orbit satellite communication and 5G special network integration applications combine low -orbit satellite communication with the key technology application requirements of 5G dedicated networks. The specific industry application scenarios facing the wide area of ​​the wide area are involved in the digital upgrade of the industry, involving the Internet of Things, mobile communication, and mobile communications, and mobile communications. Millimeter wave communication, satellite communication and big data communication areas. Analysis of typical industry application scenarios.

1. Wide -area massive terminal access and large traffic data transmission scenarios

In the application scenarios of industrial informatization and smart industry in remote areas, a large amount of IoT data collection terminal access requires a large amount of basic big data collection and transmission support back -end informatization and big data applications. Using the local 5G dedicated network has a large frequency range and rich bandwidth resources. It can provide high -speed interconnection service capabilities in a certain area and outdoor, visual distance and non -visual distance, and based on 5G virtualized network architecture and low -orbit satellite Internet. The heavenly channel can build the integrated application network architecture of the stars and land, the cloud edge -end cooperation, and the comprehensive application in the context of perception, communication, and computing wide -area communication coverage, and allow industry users To communicate, some local data can be completed internally. When necessary, it can be shared with the Internet according to the strategy through the strategy.

2. High reliability guarantee and delay sensitive application scenarios

The industrial control and autonomous driving of engineering intelligence and automation upgrade needs, including large printers, CNC machine tools, packaging equipment, and outdoor engineering vehicles in industrial parks. It is necessary to achieve low -delayed program control operations under the cooperation of 5G special network and low -orbit satellite Internet. By optimizing the frame structure of the low -orbit satellite network section technology and the 5G special network, reduce the end -to -end delay of star communication, and further improve the reliability of data transmission and have anti -interference and interception. Business uninterrupted communication and trusted and reliable services. The end -to -end network slicing technology of the low -orbital satellite Internet, including the cutting of time -frequency resources, network slices of satellites, Xinguan stations, and core networks, for low -delay single -jump landing, etc., to meet the at least sensitive business to the bandwidth bandwidth. The demand differences between low latency, high reliability, and large connection, and allow industry users to make overall scheduling of star resources under its jurisdiction on the actual needs of the business on the actual needs of the business.

3. The industry's front -line big data application scenarios are mainly for big data application scenarios for industry users' remote areas, including production scheduling, safety production monitoring, and first -line intelligent operation and maintenance. It is necessary to have a large -capacity terminal access and massive data transmission on the low -orbit satellite 5G special network. Interacting with data. Deploy big data application equipment and service application systems at the front -line site, realize the collection, cleaning and processing of data in the local area, first realize industry intelligent applications based on big data application capabilities, and based on cloud -side collaborative architecture, based on star and land integration Design and higher -level big data application nodes complete the big data application function. The overall application system can perceive the needs of user business scenarios and the characteristics of user business, and realize the need for customization of network big data applications.

Six, conclusion

The low -orbit satellite constellation 5G special network can give full play to the advantages of low -orbital satellite communication and the interconnection advantage of 5G all things. It is also in line with the national "Belt and Road" initiative. Private network users can not need local communication infrastructure. The fusion application of the two not only expands the coverage of the communication network, but also provides users with a wider and faster communication network access service, and comprehensively improves the level of satellite and ground communication services. To achieve the guarantee of the integration of heaven and earth, and effectively meet the needs of various application scenarios in the future. At the same time, 5G and Satellite Internet will stimulate the role of 5G and satellite Internet "new infrastructure" in terms of industrial chain integration, network integration operations, and user group sharing. Force, seize the high -quality development of the 6G technology system in the future, and promote the high -quality development of my country's air -world integrated communication information network.

Source: "Satellite Application", No. 8, 2022

Author: Yangbo Galaxy Aerospace (Beijing) Technology Co., Ltd.

Edit: Chen Biao

Responsible editor: Yang Luqian

Producer: Qi Shoubing

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