Wi-Fi QoS技术综合分析  

Wi-Fi QoS Technology Survey and Analysis

作　　者：钱智红 成刚 QIAN Zhihong;CHENG Gang(Nokia Shanghai Bell Software Ltd.,Shanghai 201206,China)

机构地区：[1]上海诺基亚贝尔软件有限公司,上海201206

出　　处：《通信技术》2024年第3期261-266,共6页Communications Technology

摘　　要：为了满足对高带宽、低时延业务的服务质量要求,Wi-Fi技术必须支持不同类型业务质量的管理机制。首先,分析传统Wi-Fi QoS技术面临的挑战,阐述Wi-Fi联盟弥补传统的Wi-Fi多媒体功能WMM不足而定义的QoS管理技术,有效支持下行数据流的分类和优先级设定;其次,进一步分析和介绍Wi-Fi7对于QoS改进的关键技术,包括数据流的QoS特征识别技术和严格目标唤醒时间r-TWT技术,以及二者结合对于低时延业务的支持;最后,对Wi-Fi的QoS技术发展进行小结和展望。In order to meet the quality of service required by high-bandwidth and low-latency services,It’s crucial for Wi-Fi technology to support the QoS mechanism for different types of service quality.This paper first analyzes the challenges faced by conventional Wi-Fi QoS technologies and introduces the QoS management technologies defined by the Wi-Fi Alliance to compensate for the shortcomings of the conventional WMM for Wi-Fi multimedia functionality,which can effectively support the downlink stream classification and priority setting.Then,it further analyzes and introduces the key technologies of Wi-Fi 7 for QoS improvement,including the QoS feature recognition technology for data streams and the restricted TWT technology,as well as the combination of the two for the support of low-latency services.Finally,this paper gives a short summary and outlook on the development of Wi-Fi QoS technology.

关 键 词：QOS WMM QOS管理 Wi-Fi 7 QoS特征 r-TWT 

分 类 号：TP393.1[自动化与计算机技术—计算机应用技术]