Real-Time Applications (RTA) are among the most important use cases for future Wi-Fi 7, defined by the IEEE 802.11be standard. This paper studies two backward-compatible channel access approaches to satisfy the strict quality of service (QoS) requirements of RTA on the transmission latency and packet loss rate that have been considered in the 802.11be Task Group. The first approach is based on limiting the transmission duration of non-RTA frames in the network. The second approach is based on preliminary channel access to ensure the timely delivery of RTA frames. With the developed mathematical model of these approaches, it is shown that both of them can satisfy the RTA QoS requirements. At the same time, the preliminary channel access provides up to 60% higher efficiency of the channel usage by the non-RTA traffic in scenarios with very strict RTA QoS requirements or with low intensity of the RTA traffic.
翻译:实时应用(RTA)是未来Wi-Fi 7的最重要使用案例之一,由IEE 802.11be标准界定,本文研究了两种后向兼容的通道接入方法,以满足区域贸易协定802.11be工作组审议过的关于传输延迟率和包装损失率的严格服务质量要求;第一种方法是限制网络中非RTA框架的传输时间;第二种办法是基于初步通道访问,以确保及时交付RTA框架;根据这些方法的开发数学模型,可以证明这两种途径都能满足RTA QOS要求;同时,初步通道访问为非RTA交通提供了高达60%的频道使用效率,其情景是非常严格的RTA Qos要求或区域电信协会交通强度低。