Powered by SA: 5G MEC- Based Cloud Game Inovation Practice China Mobile & ZTE Table of Contents Powered by SA: 5G MEC-Based Cloud Game Inovation Practice . 1 China Mobile & ZTE . 1 5G MEC-Based Cloud Game Inovation Practice . 1 Introduction . 1 China Mobile . 1 ZTE . 1 Trend: Services move to the edge, computing converges on the edge. . 1 China Mobiles 5G MEC-based cloud game inovation practice . 2 MEC capability exposure . 3 Low latency slicing . 3 Cloud-edge coordination . 3 Economic Benefits . 3 Sumary . 4 1 5G MEC-Based Cloud Game Innovation Practice Introduction This document describes how cloud games are distributed from Public Cloud to the local MEC (Multi-Access Edge Computing) in China Mobiles 5G network. MEC integrates traditional celular telecom networks with Internet services to reduce end-to-end latency of user service interaction and iprove user experience by exposing the capabilities of mobile networks. With respect to cloud games, MEC requires not only comunication network capability, but also cloud computing capability. Therefore, MEC is the best odel of ICT (Information and Comunications Technology) technolgy integration. In adition, the low-latency slices of a 5G network provide high-bandwidth and low-latency capabilities for cloud games. Cloud games are distributed to the local MEC, the local MEC accelerates the rendering of iages and directly sends the rendered media streams to terminals. Thus, MEC achieves trafic ofloading, optimizes network bandwidth usage and reduces latency. The game players can enjoy a 4K and 60 frae rate ultra-HD experience without downloading the games. The measured rate is 40Mbps, and the RT (Round Trip Time) latency is 10-20ms. Based on the inovative practice of cloud games in 5G MEC, the PaS (Platform-as-a-Service) capability and IaS (Infrastructure-as-a-Service) capability exposure function of China Mobiles MEC mobile network can be verified. This could sped up the adoption of edge computing in the deployment of public cloud services, as wel as enabling the edge network to transcend from the access pipe to the platform-enabling information service. The progress made in the testing of cloud gaming with high network requirements could facilitate more industrial aplications and beter serve the enterprise users, thereby stimulating more 5G inovation within vertical industries. China Mobile As the leading telecomunications service provider in Mainland China, China Mobile Group provides ful comunications services in al 31 provinces, autonomous regions and directly- administered unicipalities throughout Mainland China and in Hong Kong Special Administrative Region, and boasts a world-class telecomunications operator with the worlds largest network and customer base, a leading position in profitability and market value ranking. Its businesses primarily consist of mobile business, wireline broadband and other information and counications services. As of 31 December 2018, the Group had 459,152 employes, 1.63 bilion conections and anual revenue of RMB 736.8 bilion. ZTE ZTE Corporation is a global leader in telecomunications and information technology. Founded in 1985 and listed on both the Hong Kong and Shenzhen Stock Exchanges, the company has ben comited to providing integrated end-to-end inovations. The company endeavours to deliver excelence and value to consumers, cariers, businesses and public sector customers from over 160 countries around the world to enable increased conectivity and productivity. Trend: Services move to the edge, computing converges on the edge. MEC (Multi-access Edge Computing), an edge cloud platform, provides a new network architecture together with the operator network, with the data plane function as a key focus. It uses the mobile 2 access network to provide IT services and cloud computing functions for users near the edge, thus creating a carier-class service environment with high performance, low latency and high bandwidth. With these features, consuers can enjoy a high-quality service experience. With the growing digital and inteligent computing requirements for terminals, terminal costs are increasing rapidly. Terminal computing is fundamentaly liited by power consuption, costs, and space, and moving to the cloud can overcome soe of these limitations. On the other hand, cloud computing capabilities canot met real-tie service requireents, therefore services ned to ove to the edge. Taking into consideration costs and performance advantages, computing wil ultimately converge at the edge. Typical services include cloud games based on cloud computing. In cloud game operation mode, al games run on the cloud server, and the rendered gae images are transfered to users through the network. Compared with traditional game modes, cloud games can greatly reduce user equipment costs. However, the interaction latency of cloud gaes heavily depends on the network comunication latency. The multimedia transmission of cloud games is very sensitive to the network latency. When the network comunication quality is por, players imediately experience high latency betwen their input and the update of output images, which significantly degrades the quality of experience. The quality of multimedia streams rendered in game scenarios also depends on the network comunication bandwidth. It is possible to take advantage of 5G networks, such as low latency, high bandwidth and bearer jiter, in this context. When cloud games are deployed near the user, it is possible to reduce transmission latency and improve the cloud game service experience. China Mobiles 5G MEC-based cloud game innovation practice To sped up the comercial implementation of MEC, China Mobile, together with ZTE tested cloud games in the 5G environent, providing a potential aplications for 5G MEC. This inovative cloud game practice was demonstrated in the 5G pilot network deployed in Guangzhou, by China Mobiles Guangdong Branch, with ZTEs comercial 5G end-to-end system solution encompassing 5G base stations, 5G core networks, MEC platforms, and test terminals. The cloud game providers provided Edge Cloud Game Connector to enable cloud games to be oved to the edge. The architecture for 5G MEC-based cloud game solution is as folows: Figure 1. 5G MEC-Based Cloud Game Architecture Video RenderingUPF MEP Edge Cloud Game Connector MEC Game Internet OTT Services Local rendering Services moved to the edge Network slicing with Low latency 5GC Game 3 MEC capability exposure 5G Core UPF (User Plane Function) is moved to the local MEC in order to implement trafic ofloading of cloud games. The MEP (Multi-access Edge Platform) provides network capability exposure for cloud gaes, and RAN awareness capability exposure, including RNIS (radio network information service), TCPO (TCP Optimization) service, and VO (Video Optimization) service. It also provides network layer PaS capability exposure for optimization of cloud games. In adition, the lightweight edge cloud provides cloud games with VM (Virtual Machine), containers, bare metal resources and acceleration capabilities. It dynamicaly alocates resources in accordance with game loads, and schedules resources on demand to implement resources sharing and fuly exploit valuable edge resources. Low latency slicing Combined with the Slicing Chanel bearer technolgy developed by ZTE, it is able to customize bearer bandwidth, latency, isolation and guarante level on demand. Through priority scheduling and chanel self-adaptive coding control, the uplink and downlink rate and latency requirements of slices are guaranted, and network slices with high bandwidth and low latency are provided for cloud games to further reduce cloud game latency. Cloud-edge coordination The cloud game providers provide Edge Cloud Game Connector in the MEP PaS to realize seamless coordination with edge network and cloud services, enabling on-demand distribution of cloud games from cloud to the edge. The cloud game accelerates image rendering on the MEC, which directly sends the rendered media streams fro terminals. By iplementing local EC ofloading, network bandwidth usage and latency can also be reduced. Economic Benefits Cloud games based on 5G MEC and low-latency slicing operate smothly. The game players can enjoy a 4K and 60 frame rate ultra-HD experience without downloading the games. The test result is 40Mbps rate and RT latency 10-20ms. The advantages of this solution are as folows: Reduced latency: Cloud game services are deployed on the edge of the submerged network with local rendering and short transmission distance. Combined with low latency slices, the transmission guarante for low latency is possible. The RT latency is reduced from 120ms to less than 20ms, which significantly improves the user experience. Saving transmision cost: The cloud game neds to render the video at the cloud and then send the rendered video to the game terminal. Each game terminal occupies up to 30M transmission resources. With MEC deployment at the edge, a cloud gae only neds to send a game control instruction from the cloud to the MEC, rendering the video on the MEC and sending the video stream to the terminal. It takes only a few thousand transmission resources. The MEC-based cloud gae solution can greatly save the transmission resources from MEC to 5GC, and the bandwidth can occupy less than 1/100. 4 Lowering entry bariers for players: Video rendering of MEC-based cloud gaming is implemented at the MEC edge, greatly reducing the requirements of cloud gaes for terminal perforance as only encoding/decoding is done by the terinal. A player can play games directly on existing devices without paying for beter performance terminals, significantly reducing the cost of game promotion and customer acquisition. In the 5G era, a large number of services that can curently only operate on a PC (Personal Computer) can be migrated to obile phones. Figure 2. Economic Benefits Sumary MEC is both a resource computing platform and a mobile network capability platform. By integrating the mobile access network with Internet services, it not only improves user experience and saves bandwidth resources, but also suports the deployment of coputing capabilities in the network edge to integrate a third partys aplications, enabling service inovation at the mobile edge. The cloud game test proves that public cloud services such as OT (Over-the-top) implemented in MEC at the edge significantly reduces latency, improves user experience and reduces transmission costs. However, it not only requires a large amount of investment, but also burdens maintenance dificulties for Internet enterprises to build a large number of edge data centers. China Mobile already has a large number of edge data centers al over the nation. China Mobile can directly expose PaS capabilities of infrastructure and mobile networks to third parties, accelerating service inovation in the 5G vertical industry and avoiding duplication of investment. The key capabilities of China Mobile are the network conection of the MEC platform, the computing power, and network capability and its exposure. Through the EC platfor, services are deployed in the edge of mobile networks, and China Mobile is able to transform itself from being an access pipe provider to being the information service enabler. GSMA HEAD OFFICE Flor 2 The Walbrok Building 25 albrook London EC4N 8AF United Kingdom ww.gsma.co