5G four problems to be solved urgently
June 13, 3GPP Plenary (TSG#80) approved the fifth generation mobile communication technology standard (5G NR) Independent networking function freeze.
This also indicates that 5G NR has the ability to deploy independently, bringing new end-to-end architecture, which means that 5G can be formally entered into the commercial phase. Shei Yuqi, deputy director of Shanghai Communications Administration, said: ' With the completion of the first phase of the 5G standard, it is also clear that the main direction of future development, after the industry will enter a new stage of comprehensive sprint.
' Thankfully, at the end of last week's MWC, the country's three largest operators have announced their own progress in 5G.
and Shei Yuqi stressed that the arrival of 5G, will bring huge industrial value, endowed with the development of new intelligent City, further enhance the city's network and intelligence.
But even so, Jingdong, director of the Communications Network Operations Professional Committee of China Communications Enterprise Association, believes that while the global 5G Development has entered a critical period of commercial deployment, there are still four major issues to be addressed. First, starting from the end of 2018 in early 2019 commercial, to start the scale of business in 2020, 5G compared to the previous 3G, 4G deployment speed, has been greatly ahead. It can be said that the time left to 5G technology and industry is less than two years, from the time is very urgent.
It is noteworthy that how to complete the double preparation of technology and industry in this pressing time. Second, the mobile broadband industry and the International Telecommunication Union (ITU) still need a lot of work to ensure a reasonable distribution of the 5G spectrum across countries. Since 5G networks have been deployed to new frequencies, the distribution of spectrum has become a problem to be solved urgently.
At the World Radiocommunication Conference (WRC-19), held in November 2019, the States members of the International Telecommunication Union would be expected to agree on a 5G spectrum allocation scheme within the High-frequency segment to provide sufficient spectrum bandwidth at the appropriate frequency bands and conditions. Third, the chip becomes the key of 5G technology development. Although the current 5G standards progress very quickly, but 5G related chips still exist a lot of problems. It can be said that, relative to the system, the development of the chip some lag.
But only the chip's landing, can guarantee the 5G commercial normal operation, this also will become the 5G development key factor. Finally, the development of 5G technology is not one or several enterprises, a country or several countries can do, need the coordinated development of the whole industry.
But from the current situation, in addition to chips, operators and other parts of enterprises, vertical industry participation is not high, still need to work hard.
Three innovative technical directions of 5G Standard
The arrival of 5G communication, not only means the speed of ascension, but the Herald of the "Interconnection of all things," the arrival of a new era.
IMT2020 (5G), deputy dean of the Chinese Institute of Communication, Wang Zhiqin said that 5G will be a new network architecture, providing at least 10 times times the 4G peak rate, transmission delay and connectivity capabilities, open all things interconnected, human-computer interaction of the new era, the economic and social digital transformation of the key booster.
But at the same time, 5G will also pose a greater challenge, and we need to think about how to meet the diverse needs of the Internet in terms of 5G. You know, 5G new, including low frequency segment and high frequency band, and 4G incompatible, High-Low frequency band using unified Technology program.
Among them, 5G low frequency new empty to meet most of the 5G scene, while 5G high-frequency new Empty as a supplement. In Wang Zhiqin's view, the 5G Core network architecture presents the following characteristics: The network function as a unit to support the network slices; Distributed data forwarding, support flexible streaming; The user face sinks to the edge of the network, even near the base station, to support edge computing;
The control plane business process is based on HTTP and uses the design concept of service based network architecture.
At present, 5G has entered the Key stage of international standard development, how to meet the diverse scenarios through the unified flexible and configurable technology framework, the use of large-scale antennas and new technologies to improve system performance is a key issue.
Finally, Wang Zhiqin points out three innovative technical directions of 5G Standard: Flexible system design, new technology, large scale antenna. Mei Chengli, Director of network Technology of China Telecom Innovation Center, believes that the development of 5G business needs to be defined in this context.
As previously said, China's development from 3G, 4G to 5G has broken the international normal ' ten-year ' rule of development, presenting China's unique ' decade two generation ' development model.
This mode of development has led to great opportunities and challenges in the new spectrum, new services, new networks, new businesses and new ecosystems.
Mei Chengli stressed that the future 5G network and business development in the future should be divided into three stages:
The first stage: to mobile video applications mainly to meet the needs of large bandwidth.
The second stage: to industrial Internet, car networking applications to meet the demand for low latency and large bandwidth.
The third stage: the realization of the application of intelligent, large-scale.
With the advent of 5G business, the whole industry will face great opportunities for development, but it will also face a lot of uncertainty.
However, 5G as the "interconnection of all Things" era of the inevitable technology, it represents not only technological change, but also represents the industrial integration, Cross-border expansion and ecological reconstruction of new opportunities! Four major issues, three directions, about 5G Pre-commercial these should know!