How will 5g network with 400million users develop next? As industry leaders, China Mobile and Huawei have shown the industry the research progress of many key technologies and the future capabilities of 5g advanced in the way of one solution and one product prototype. 5g advanced improves network capability Which targets are targeted for 5g advanced upgrade? Dinghaiyu, vice president of China Mobile Research Institute, said that 5g advanced will further improve the network capability on the basis of the existing downlink Gbps rate, uplink 100 Mbps rate, 100000 connection density and sub meter positioning accuracy: support the downlink 10Gbps rate, uplink Gbps rate, millisecond delay, low-cost 100 billion IOT, as well as the ability to sense, high-precision positioning and other beyond the connection. These abilities can be expressed in three major directions. In the direction of "excellent network", including x-layer cross layer integration, communication awareness integration, UDD time-frequency unified full duplex, space-time integration, extreme determination and other technologies, we will jointly build a 5g network with excellent performance. At present, China Mobile has built a model of x-layer cross layer integration, communication awareness integration and UDD time-frequency unified full duplex with industry partners. In the direction of "smart generation and smart simplicity", it includes key technologies such as eiot cellular IOT, AI self intelligent network, wireless cloud computing industry integrated network, etc. Eiot cellular IOT technology will break the bottleneck of traditional RFID, improve the communication distance of passive IOT, support sub meter positioning accuracy, and realize wide area label positioning and sensor information collection. In the direction of "low carbon and high efficiency", China Mobile will improve 5g network energy efficiency through the comprehensive use of new energy, new hardware and new functions. At the same time, 5g will empower various industries, drive the whole industry to achieve low carbon and energy conservation, and help achieve the double carbon goal. Four industry models A year ago, China Mobile and Huawei reached a consensus on the joint promotion of 5g advanced, promoting 5g advanced through the integration of innovation chain and industrial chain, jointly promoting standards and creating a 5g innovation pilot field. Recently, China Mobile and Huawei jointly announced four 5g key technology industry model achievements of cooperation between the two sides. First, the x-layer cross-border financing industry experiment, which can increase the network capacity by 5 times, aims to support the meta universe business. The second is the synaesthesia integration model. For the first time, the perceived range has exceeded 800 meters, and the detection range and resolution have been improved by 3-5 times compared with radar. Third, the time-frequency unified full duplex technology. Based on the existing research, this year, it released a dual carrier UDD based on Sul, which achieved the first time in the industry that the uplink peak rate exceeded 3gbps. Fourth, the first phase prototype experiment of eiot cellular IOT was completed. This year, the coverage distance exceeded 200m for the first time in the industry, more than 20 times higher than that of traditional RFID technology. "After that, we will further promote the single point verification of more key technologies and the application level system verification of key technologies based on the single point verification of some key technologies in the early stage, so as to realize the deep integration of the innovation chain and the industrial chain." Deng Wei, deputy director of wireless and terminal Technology Research Institute of China Mobile Research Institute, said in an interview with China Electronics News, "On the one hand, test and verify more 5g advanced key technologies and create templates, such as the test and verification of single carrier UDD technology and other key technologies; on the other hand, promote the application level system verification of key technologies, such as the test and verification of small-scale networking and new network architecture oriented to synaesthesia fusion, eiot and other technologies, so as to meet the business requirements of global awareness of automatic driving in the Internet of vehicles and realize wide area labeling Positioning and sensing information acquisition, etc. " Application oriented performance improvement 5g industrial application is in the early stage of market explosion. At present, there are 5000 commercial industrial projects in China. Smart port, smart high-speed rail and smart factory are the hot spots of 5g private network deployment. 18 industries such as electric power, metallurgy, parks and cultural tourism have formed scale replication schemes. "With the further deepening of 5g deployment, 5g to B still faces some problems in depth." Deng Wei believes that there are three main aspects to the problem. First, in terms of connection capability, the connection required by industrial applications should increase the uplink bandwidth, have very low delay, and also need high-precision positioning capability; Second, there is a contradiction between the diversity of industry demand and the long cycle of customization and the large-scale hope of the communication industry; Third, the cost of terminals is still relatively high. In the application of power and ports, users all hope to reduce the cost to less than 100 yuan, otherwise it will affect the large-scale promotion. The application prospect of 5g in XR is also encouraging the evolution of 5g advanced. Gaoquanzhong, general manager of Huawei wireless network product line 5.5G, said that it can be seen that XR terminals are making breakthroughs. In the future, many image rendering capabilities in XR will be put into the cloud, which can reduce the weight of XR terminals. However, more XR access to the network is a new challenge to the network. Therefore, Huawei is promoting to increase the support capacity of XR users by five times, and the 10Gbps downlink rate achieved by 5g advanced, It can support 100 XR users instead of 20. "5g advanced can also provide a more stable delay of 20 milliseconds to ensure that the cloud rendering capability can be stable and practical." Gaoquanzhong said, "with the rise of the meta universe, there will be more services in the future that will bring this demand for large bandwidth." 5g advanced can also better support the unmanned distribution car business. Gaoquanzhong said that in the post epidemic era, unmanned distribution will become more and more popular. 5g advanced can support 8~10 unmanned delivery vehicles. Each vehicle is equipped with 8 cameras and flows freely in the cell with an uplink bandwidth of nearly 100Mbps. In the field of new service robots, one wireless device (CPE) can support all cameras, and 5g advanced can support full uplink with very low power consumption. (Xinhua News Agency)