Flying Elephant News (Yi Huan) The Yangtze River Delta region is one of the regions with the most active economic development, the highest degree of openness, and the strongest innovation capabilities in China. The scale and development level of information services in the region lead the country. In recent years, the state has even upgraded supporting the regional integration of the Yangtze River Delta as a national strategy. Among them, the construction of the Yangtze River Delta information network is of vital importance.
In order to actively respond to the national strategy, in Jiangsu, China Mobile established the Yangtze River Delta 5G Innovation Development Industry Alliance, China Mobile Yangtze River Delta (Nanjing) Science and Technology Innovation Center, China Mobile Zijin (Jiangsu) Innovation Research Institute, and reached a strategic cooperation with Southeast University. Co-build joint innovation centers, joint laboratories, etc., to build agile and accessible network facilities for the Yangtze River Delta. Recently, during the “Mobile Strong Innovation 5G Helps Growth” Jiangsu Regional Tour, the reporter walked into the Jiangsu Mobile Network Management Center and the China Mobile 5G Joint Innovation Center at Southeast University for a physical visit experience and felt that Jiangsu Mobile is a 5G network in the Yangtze River Delta Efforts made by construction. Improve 5G network application experience in many ways It is reported that Jiangsu Mobile took the lead and successfully explored the 5G C-RAN networking experience, which was eventually replicated across the country. At present, Jiangsu Mobile has the highest proportion of C-RAN in the country and is highly representative. “5G C-RAN networking can save rent by saving 20% of building 5-band and 4-baseband boards to reduce the number of computer rooms. C-RAN accounts for more than 90% and saves more than 700 million yuan in investment.” The on-site staff said. Not only that, Jiangsu Mobile is also researching low-cost solutions to help the development of 5G vertical industries, and building a wireless cloud small station test network with Zijinshan Laboratory, China Mobile Research Institute, and China Mobile Design Institute, smart-simplified offloading, and base stations with lightweight edge computing Ability to help ToB industry private network price reduction and rapid deployment. It is understood that the Jiangsu company of this project opened the world’s first 2.6GHz 5G O-RAN SA independent networking base station as early as November 2019. A lot of work has been done in the standardization of relevant requirements for wireless cloud small stations and the performance testing of existing networks. It has also formed a joint research team with relevant R&D units, which has achieved initial results. In terms of network application, the “5G+AI Quality Inspection Demonstration Workshop” jointly created by Changzhou Mobile and Jingyan Technology is the first billion-dollar 5G+ smart factory project in Jiangsu Province. 5G+MEC private network is deployed in Jingyan Technology’s production workshop. The 5G+AI quality inspection method transforms the original manual quality inspection into machine quality inspection, realizes the digital upgrade of the industry, saves production costs, and improves the production efficiency of enterprises. 
The reporter learned that Jingyan Technology mainly provides high-complexity core components for the 3C electronics and automotive fields. As a labor-intensive enterprise, before the introduction of AI quality inspection, nearly 60% of Jingyan Technology’s manpower was used for product quality inspection. , For a long time, there have been difficulties such as high job mobility and low work efficiency of quality inspection workers. Now, the multi-angle high-speed camera on the AI quality inspection equipment can continuously take high-definition pictures of products, and pass them back to the cloud through the mobile 5G private network for AI recognition, and a precision product can be completed in 1-2 seconds. Defect detection. In addition, the 5G+AI quality inspection has greatly reduced the detection error rate caused by manual quality inspection, and has also played a positive role in improving the production efficiency of the enterprise. “Through nearly a year of construction and deployment, there are now 22 quality inspection machines in the Jingyan technology workshop, and the workload is equivalent to nearly 300 quality inspection workers. According to the average cost of 100,000 yuan per person per year, nearly 30 million yuan has been saved. Labor cost.” Pan Zhengyi, CEO of Changzhou Weiyi Intelligent Manufacturing Technology Co., Ltd., who participated in this project, introduced. At the same time, Changzhou Mobile also cooperated with the Zhonglou District Government of Changzhou City and Changzhou Weiyi Intelligent Manufacturing Technology Co., Ltd. to create a 5G industrial big data cloud platform, which will analyze the quality inspection data of Jingyan Technology for big data, calculate the product test results, and combine them simultaneously. Intensify the production process, guide and optimize the production plan, empower the production efficiency of the enterprise, and reduce the loss. In addition, due to Jingyan Technology’s higher requirements for 5G network uplink bandwidth, Changzhou Mobile Innovation piloted 4.9G 3U1D large uplink technology in Jingyan Technology Workshop. After successful application, the peak uplink rate reached 700Mbps, and the average uplink rate was about 560Mbps. At present, Changzhou Mobile is deploying 2.6G+4.9G uplink CA at Jingyan Technology to further increase the bandwidth requirements of industry applications. In addition, Changzhou Mobile has effectively reduced the end-to-end delay of Jingyan Technology’s 5G network by applying new technologies such as uplink pre-scheduling, SA DRX, and SR scheduling. In terms of resource scheduling, Changzhou Mobile is deploying 2.6G+4.9G uplink CA at Jingyan Technology. The resource allocation mode can be flexibly selected according to the actual needs of the workshop site, and the resource allocation ratio can be set, and different scheduling priorities can be set to the corresponding slice +5QI. This will further improve the download rate and user experience of Jingyan technology private network users. It is worth mentioning that in terms of energy conservation, Jiangsu Mobile responded to the national “carbon neutral” initiative and took the lead in energy-saving research and development, building a “green network”, and co-developing a network-level smart energy-saving platform with the research institute. The current energy-saving level is at Leading the country, and has formed the first case of large-scale cell access in China. Join hands with Southeast University to strengthen network technology innovation On January 19th, China Mobile Communications Group Co., Ltd. and Southeast University held a strategic cooperation agreement signing ceremony in Nanjing. The two parties will give full play to their respective technological advantages, talent advantages, and resource advantages, and carry out extensive cooperation on technological innovation and talent training. , To jointly create a new model of industry-university cooperation. In this event, we also learned that the two sides have achieved good results in research on ultra-large-scale antennas, D-MIMO, and millimeter waves for 6G and Dongda. As we all know, commercial 5G indoor sub-systems increase capacity by densely deploying low-power multi-antenna small stations. However, due to the problem of multi-cell interference, it is difficult to further increase the capacity with the traditional cell splitting and co-cell implementation methods. On the infrastructure of the existing commercial indoor distribution system, multiple small stations are coordinated to form a large-scale distributed MIMO, which can not only avoid interference, but also significantly increase the system capacity. According to Wang Dongming, professor of Southeast University and deputy head of the expert group of the 6G Technology Promotion Group of the Ministry of Industry and Information Technology, currently, the 5G-863 major project led by the State Key Laboratory of Mobile Communications of Southeast University has constructed the industry’s largest 128-antenna large-scale distributed MIMO test System, third-party test results show that the spectrum efficiency can reach 100bit/s/Hz. “At present, Southeast University and Jiangsu Mobile have cooperated and explored a complete solution for commercial indoor distribution systems to achieve distributed cooperative MIMO based on the wireless cloud network architecture, and have carried out experimental verification. On the basis of large-scale distributed MIMO, it has broken the traditional cellular Architecture and cell splitting thinking, using distributed and scalable collaborative transmission algorithms to form a cellular-free wireless access network, has been proven to further improve the spectrum efficiency of wireless communication systems, and is also regarded as a key to 6G Technology.” Wang Dongming said. In addition, Professor Wang Wenjin from the State Key Laboratory of Mobile Communications of Southeast University pointed out: “Compared with the existing 5G massive MIMO technology, the ultra-massive MIMO technology further increases the base station side antenna elements and radio frequency channels to deeply tap the potential of the wireless communication space dimension. Significantly improve spectrum efficiency and power efficiency.” In order to explore and analyze the characteristics of ultra-large-scale MIMO channels, and verify the key transmission technologies of ultra-large-scale MIMO in typical actual scenarios, leading the original innovation of key technologies in this field, the Key Laboratory of Mobile Communications of Southeast University takes the lead, and Jiangsu Mobile cooperates with joint explorations. Nanjing Jiangning Wireless Valley has constructed the world’s largest ultra-large-scale MIMO field experiment system. “The experimental system is driven by 128 radio frequency channels with 1024 antenna elements, and the horizontal array width is up to 7 meters in a typical frequency band. This experimental system will help my country’s B5G backward evolution of the ultra-large-scale MIMO technology pre-research and maintain my country’s mobile communications First-mover advantage in technology.” Talking about the next plan, the two parties stated that in the next step, China Mobile and Southeast University will jointly build a “joint innovation center”, “new network networking technology joint laboratory”, and “future medical and health technology joint laboratory” to create multi-field scientific research. The cooperation platform adds luster to the innovation of network construction in the Yangtze River Delta region.
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