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China Mobile huangyuhong: MEC will improve the user experience of communication services

the 2016 mobile edge computing MEC technology forum hosted by the people's post and Telecommunications Publishing House and organized by the communication world all media platform was held in Beijing Guobin hotel. This MEC technology forum is the first professional technology forum since MEC technology. Huangyuhong, vice president of China Mobile Research Institute, made a keynote speech on MEC exploration in 4g-5g evolution according to the current situation. Huangyuhong said that the future MEC capabilities should evolve in the direction of integrating with virtualization systems. MEC technology can improve the differentiated service capability of operators during the evolution from 4G to 5g, and create a carrier level service environment with high performance, low latency and high bandwidth. Therefore, it will significantly improve the user experience of communication services

mec improves the user experience of communication services

with the maturity of 4G, more and more users are used to watching network video through a variety of mobile terminals. This new trend poses a great challenge to wireless network operators. Huangyuhong said: at present, users have very high requirements for response time of multi video services, especially rebroadcast and real-time broadcasting services. In the 5g era, users need to carry services such as virtual reality and augmented reality, but simply increasing bandwidth cannot fully meet the needs of low latency

as we all know, the continuous increase of services with large bandwidth is bound to put great pressure on the transmission bandwidth of the network. Therefore, we need to find a reasonable solution to reduce the demand for transmission bandwidth. The industry is thinking about whether it is possible to sink the processing capacity and content of services to more marginal places in the network, so as to further reduce the delay and bandwidth requirements. Therefore, the concept of MEC was born

as a result, some key technologies have been widely concerned in the industry, such as the flat expansion and enhancement of the base station, the sinking of network storage and content distribution to the user end to access, and the sinking of core user plane functions to the base station. MEC technology can improve the differentiated service capability of operators during the evolution from 4G to 5g, and create a carrier level service environment with high performance, low latency and high bandwidth. Therefore, it will also significantly improve the user experience of communication services

however, huangyuhong thinks that although MEC technology has developed from concept to some current practices and experiments, it is still far from large-scale application deployment. Fortunately, everyone is conducting experiments. The development of any technology must be constantly explored and optimized before it can be commercialized on the final scale

through research, we believe that in the future, this MEC capability should evolve in the direction of integrating with the virtualization system. By analyzing the concept of MEC, it is beneficial to both users and operators' business development. For users, the response time is very fast after the business reaches the edge. We have some measurements later. It can really improve the user's business experience. Huangyuhong said

China Mobile has actively researched and tested MEC technology. Mutual understanding, cooperation and customer satisfaction have improved the technology.

in 2014, ETSI established a MEC working group, which includes many equipment manufacturers and operators. China Mobile has also joined in the investment scope of this year; In 2015, China Mobile also carried out a wireless intelligence project under the leadership of CCSA; In 2016, under the leadership of 3GPP, China Mobile launched research on wireless enhanced sensing and service transmission capabilities, and actively carried out research on corresponding technologies and standardization

in the previous F1 competition held in Shanghai, China Mobile deployed indoor coverage with dozens of small stations. At the same time, considering that users have very high requirements for time delay when watching the game, China Mobile also uses an independent MEC device for deployment. Its content is directly connected to the wireless. Through such an experiment, it is measured that the live broadcast delay is only 0.5 seconds, and users can hardly feel it

Huang Yuhong said: if we use the current traditional live broadcast method, put the server on the Internet, and then compare the transmission of long streams through the network, the delay will be about 50 seconds. Therefore, using MEC technology will greatly improve the user experience

in addition, China Mobile has also done some experiments and tests for future AR, such as the experiment of user visiting and explaining in the way of multimedia AR in the museum. Because it also adopts the localization of the content server and the direct connection with the wireless network, it can not affect the pointer return to zero through the test. It has a very good time delay processing effect. Users can obviously feel the effect of 3D images in this network environment

in other aspects, China Mobile has opened up its wireless network capabilities. The network awareness has an API combined with the business server. When the MEC technology is used to perceive that the user is using a video service, it will identify whether the user has not considered the cross-section shrinkage; Therefore, if it is a VIP user, the BTS can give priority to scheduling the user's resources, so as to better protect the user's experience

in addition, China Mobile has also done some experiments to sink some content and cache it at the edge of the wireless network, so as to significantly improve the user experience. However, huangyuhong pointed out that there are still many problems that need to be studied and solved, such as which content to choose to put on the edge of wireless and how to calculate or judge the most appropriate content

mec development faces three challenges

although MEC has been explored by many enterprises, including China Mobile, in terms of application, huangyuhong pointed out that these are still in the preliminary stage. At present, there are still many problems and challenges in MEC development, which need to be solved jointly by the industry

first, because MEC computing power is placed closer to the network edge, many experiments currently being done need to be combined with wireless access. However, huangyuhong pointed out that this is not just a change of wireless access itself. It must be considered in coordination with our overall end-to-end network, including the development and evolution of the core. Of course, this is a big trend, which will be flatter and closer to the edge. However, how to coordinate the development and evolution between core and wireless needs further study

second, huangyuhong said that the scheduling and storage of such content as just mentioned are placed at the edge and sink to a position close to the edge. But what did it sink to? If it sinks to each base station, it means that there are many nodes to be managed in the network. Therefore, the complexity of this management and the optimization and effect of performance should be comprehensively considered. Of course, some people have proposed to sink this CDN to the very edge, but in fact, this is also a great challenge to the CDN itself. Its management and computing costs are very high, which needs further research

third, the business model is also a new technology. For example, the new business model between us and B2B, or even B2C, how to charge, what is the method with customers, and what is the business model with our third-party business partners. Now we will discuss more about the implementation and technology. However, we still need to reach some consensus on business. Huangyuhong said

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