日前,在联发科技术峰会上,联发科预告将会在CES2022上演示下一代Wi-Fi网络技术——Wi-Fi 7。据介绍,Wi-Fi 7 wifi7将带来更快的速度、更低的延时,抗干扰能力也更强。

A few days ago, at the MediaTek Technology Summit, MediaTek announced that it will demonstrate the next-generation Wi-Fi network technology-Wi-Fi 7 at CES2022. According to reports, Wi-Fi 7 will bring faster speed, lower latency, and stronger anti-interference capabilities.

Why have Wi-Fi 7? What are the differences between Wi-Fi 7 and Wi-Fi 6?

According to the news on Huawei’s official website, Wi-Fi 7 is based on Wi-Fi 6 with the introduction of 320MHz bandwidth, 4096-QAM, Multi-RU, multi-link operation, enhanced MU-MIMO, multi-AP cooperation and other technologies, making Compared with Wi-Fi 6, Wi-Fi 7 will provide a higher data transmission rate and lower latency.

Wi-Fi 7 is expected to support up to 30Gbps throughput, which is about 3 times that of Wi-Fi 6. Based on the Wi-Fi 6 standard, Wi-Fi 7 introduces many new technologies, which are mainly reflected in:

The speed is tripled! Wi-Fi 7 is here: the difference between a picture and Wi-Fi 6

With the development of WLAN technology, homes, enterprises, etc. rely more and more on Wi-Fi and use it as the main means of accessing the network.

In recent years, new applications have emerged that have higher throughput and delay requirements, such as 4K and 8K video (the transmission rate may reach 20Gbps), VR/AR, games (with a delay requirement of less than 5ms), remote office, and online video conferencing And cloud computing. Although the newly released Wi-Fi 6 has focused on the user experience in high-density scenarios, it still cannot fully meet the needs in the face of the higher throughput and latency required.

To this end, the IEEE 802.11 standards organization is about to release a new revised standard IEEE 802.11be EHT, namely Wi-Fi 7.

According to the plan, the IEEE 802.11be EHT working group was established in May 2019. The development of 802.11be (Wi-Fi 7) is still in progress, and the entire protocol standard will be released in accordance with two Releases.

Release 1 is expected to release the standard at the end of 2022; Release 2 is expected to start in early 2022 and complete the standard release at the end of 2024.

为何要有Wi-Fi 7?Wi-Fi 7和Wi-Fi 6有那些区别?

根据华为官网消息显示,Wi-Fi 7是在Wi-Fi 6的基础上的引入了320MHz带宽、4096-QAM、Multi-RU、多链路操作、增强MU-MIMO、多AP协作等技术,使得Wi-Fi 7相较于Wi-Fi 6将提供更高的数据传输速率和更低的时延。

Wi-Fi 7预计能够支持高达30Gbps的吞吐量,大约是Wi-Fi 6的3倍。Wi-Fi 7在Wi-Fi 6标准的基础上,引入了许多新的技术,主要体现在:

速度翻3倍!Wi-Fi 7来了:一图看图和Wi-Fi 6区别

随着WLAN技术的发展,家庭、企业等越来越依赖Wi-Fi,并将其作为接入网络的主要手段。

近年来出现新型应用对吞吐率和时延要求也更高,比如4K和8K视频(传输速率可能会达到20Gbps)、VR/AR、游戏(时延要求低于5ms)、远程办公、在线视频会议和云计算等。虽然最新发布的Wi-Fi 6已经重点关注了高密场景下的用户体验,然而面对上述更高要求的吞吐率和时延依旧无法完全满足需求。

为此,IEEE 802.11标准组织即将发布一个新修订标准IEEE 802.11be EHT,即Wi-Fi 7。

按照规划,IEEE 802.11be EHT工作组已于2019年5月成立,802.11be(Wi-Fi 7)的开发工作仍在进行中,整个协议标准将按照两个Release发布。

Release1预期在2022年底发布标准;Release2预计在2022年初启动,并且在2024年底完成标准发布。

 

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