中圖分類號： TN929.5 文獻標識碼： A DOI：10.16157/j.issn.0258-7998.201010 中文引用格式： 夏旭. 5G網絡切片服務等級協議技術增強和應用研究[J].電子技術應用，2020，46(11)：36-40，44. 英文引用格式： Xia Xu. 5G network slicing SLA enhancement and scenarios[J]. Application of Electronic Technique，2020，46(11)：36-40，44.
5G network slicing SLA enhancement and scenarios
Xia Xu
China Telecom Research Institute，Beijing 102209，China
Abstract： With the advancement of 5G network construction and service development, especially the development of network slicing towards convergence, diversification and intelligence in vertical industry-oriented application scenarios, new requirements are placed on the service functions of 5G network slicing. In order to adapt to the business needs of the 5G era, create 5G differentiated SLA advantages, and fully leverage the value of operators in the 5G era, this paper presents technical research and capability validation on 5G network slicing, service level guarantees and application practices. At the same time, based on the progress of 5G Stand Alone(SA) standards, key network slicing technologies were discussed, 5G business forms were refined, and new business models were simultaneously explored, providing technical optimization and support for the full-scale commercial implementation of 5G SA.
5G場景和需求多種多樣，不同的場景對網絡的性能、功能有不同的需求。在前幾代的以人為中心的的網絡基礎上，無法進行優化和融合，該網絡已經無法滿足5G多種多樣的需求，部分優化和需求在不同的場景之間可能還存在矛盾。例如超可靠低延時業務(Ultra Reliable and Low Latency Communication，URLLC)需要提供超實時高可靠服務，大規模機器通信場景(massive Internet of Things，mMTC)則要求海量的連接數，但是數據量比較小，增強寬帶通信場景(enhanced Mobile BroadBand，eMBB)則要求超高帶寬、大數據的服務。而如果為了滿足每一種場景都增加建設相應的專用網絡，將會增加建網和運營的成本，造成不必要的資源浪費。
