流量及拥塞控制机制在5G-NR中的应用和发展趋势  

Application and Development Trend of Flow and Congestion Control Mechanism in 5G-NR

作　　者：王丽萍 杨立[1] 陈琳[1] 何哲[1] Wang Liping;Yang Li;Chen Lin;He Zhe(ZTE Communications Co.,Ltd.,Shenzhen 518055,China)

机构地区：[1]中兴通讯股份有限公司,广东深圳518055

出　　处：《邮电设计技术》2022年第7期25-30,共6页Designing Techniques of Posts and Telecommunications

摘　　要：在5G-NR中,流控技术是解决无线新空口数据传输拥塞,提升数据传输性能的关键技术之一。流控技术早在4G-LTE中被引入,随后在5G-NR中被采纳和增强,并被广泛运用到不同的数据传输场景中。重点阐述了流控技术在5GNR应用的基本原理,进一步分析流控技术在5G-IAB和5G-V2X场景中的具体应用和增强。针对现有流控技术不能满足未来5G-IAB场景和5G-V2X场景中更为灵活的部署方式和传输需求,提出相应解决方案。最后,对流控技术在未来5G-IAB增强场景和5G-V2X场景中的应用和发展趋势作了预测和展望。Flow and congestion control technology is one of the key technologies to solve the data transmission congestion in 5 G-NR,which is used for improving the data transmission performance.Flow and congestion control technology is firstly introduced in4 G-LTE,then it is adopted and enhanced in 5 G-NR and is widely used in different 5 G-NR scenarios.Firstly,the basic operation mechanism of flow and congestion control technology in 5 G-NR is illustrated,and the specific application and enhancement in 5 G-IAB and 5 G-V2 X scenarios is further analyzed.For the existing flow control technology can not meet the more flexible deployment mode and transmission requirements in the future 5 G-IAB and 5 G-V2 X scenarios,corresponding solutions are proposed.Finally,the application and development trend of flow control technology in 5 G-IAB enhanced scene and5 G-V2 X scene are predicted and prospected.

关 键 词：5G新空口 传输拥塞 流控技术 

分 类 号：TN929.5[电子电信—通信与信息系统]