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It's 8.5 times 4G. Why is 5G now a long story? Chinese Academy of Engineering academician torture

via:C114通信网     time:2022/8/27 12:01:25     readed:105

To be held today. 5G-A Industry Development Summit & RDQuo; Wu Hequan, academician of the Chinese Academy of Engineering, said that in addition to undertaking the preliminary exploration for 6G, there are still some things to be done for 5G-A research. Make up a missed lesson & throughout; In the work.

In this regard, Wu Hequan put forward three points of view:

First of all,5G's capabilities are not really being demonstrated at the moment. The average downlink rate of 5G is 8.5 times that of 4G, Wu said, for example: If an app takes 1 second to download with 4G and 0.1 second with 5G, this is obvious in the Internet of vehicles.

For a 60km/h car, one second late braking adds 16 meters, while 0.1 second late braking adds only 1.6 meters, which is enough to avoid an accident. But for the average consumer's existing app, there's no difference in experience between 1 second and 0.1 second. ”

Wu noted that current 5G phones are no different from 4G phones in the eyes of ordinary consumers. In the 3G era, smart phones have a qualitative leap compared with the feature phones in the 2G era; In the 4G era, mobile phone bandwidth and camera configuration to adapt to the needs of short video; 5G phones, on the other hand, have little innovation, and 4K and 8K video capabilities are impossible to experience on a phone.

The 5G-A mobile phone chip is not only A data rate upgrade, but also requires 4K and 8K video encoding and decoding capabilities. The development of mobile phone capabilities can and should be combined with artificial intelligence to achieve voice wake-up, speech recognition, text recognition, face recognition, computational guidance, etc.

“ New 5G applications for consumption will only be possible when users have the ability to generate 4K short videos. Live & rsquo; Let's face it, pursuing the metaverse without upgrading the capabilities of existing phones is neither mature nor urgent. ” "Mr. Wu said.

Second, the thinking of 5G industrial module development needs to be changed. First of all, 5G industrial modules are not. Workshop version of 5G phones. , compared with mobile phones, in the communication multi-frequency multi-mode needs to be simplified, but the transmit power interface requirements are higher, more, and need to have reuse and intelligent routing and other functions; Secondly, the industrial module needs to be upgraded to an industrial gateway, embedded in PLC and other functions.

To achieve the replacement of PLC and other original public equipment, but also integrate the Internet of things, edge computing, blockchain and AI functions, so as to open the original PLC and production equipment, instruments and meters of the closed interface, to solve the PLC standard fragmentation, protocol is not open problems; In response, it is also hoped to develop industrial 5G base stations that integrate some core network functions for easy installation in enterprises. It is also suggested to consider setting aside dedicated frequencies for 5G industrial applications. Through the above various efforts, promote the real landing of the industrial Internet.

Third, about the cloud network and computing network heterogeneous resource collaboration technology route selection. In the era of computing power, cloud network collaboration and computing network collaboration have been put on the agenda, and wireless cloud network computing has become one of the top ten research directions. Wu Hequan pointed out that. Although we are looking forward to the deep integration of cloud network computing and the integrated management of network and computing power, the network generally does not involve data and algorithms in computing power, so it is necessary to clarify the integration of cloud network computing industry. To what extent is it integrated? . ”

In addition, this kind of integrated management will pay the cost of delay and security sacrifice, and it needs to consider whether it is worth doing deep integration. On the technical route of cloud network computing collaboration, does it depend on control surface or data surface? Cloud or computing and network resources are heterogeneous in technology and management. They are managed by operating systems, and it is difficult to communicate with each other across different administrative rights.

If the purpose of computing network convergence is to schedule computing resources through the network, it only needs to interconnect the multi-cloud at the IaaS layer, that is, the interconnection of IDC. IaaS IPv6 can still play a role. By developing the data plane carried by the IPv6 address, the network layer functions can be realized, so that the network operating system is not needed.

The interconnection of heterogeneous resources based on the address field of the data plane network layer is simpler and more direct than the signaling of the interpretation or control plane based on the DPI of the application layer, which can achieve low latency. “ Of course, network does not mean that control surface is not necessary. SDN software defines network to use the function of control surface, but mainly for routing and slice calculation. ” "Mr. Wu said.

About 5 g - the study of the evolution of A core network WuHeQuan Suggestions on the development of the function of IPv6, can solve the problem in the data plane without having to make operating systems, especially in business, high requirement of real-time data in surface treatment rather than the control surface, conducive to the further development of UPF sink application functions and expand the application field, but also to widely deployed at the edge of the calculation.

速率是4G的8.5倍 为何现在5G网速一言难尽?中国工程院院士邬贺铨释疑

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