What is Wi-Fi 7 (802.11be)?
Wi-Fi 7 (IEEE 802.11be), also known as Extremely High Throughput (EHT), is the seventh generation of Wi-Fi technology that will operate in the 2.4GHz, 5GHz and 6GHz bands, based on Wi-Fi 6E in the 6GHz band. The goal of Wi-Fi 7 is to deliver blazing-fast speeds to every device with greater efficiency. Designed to meet the growing demand for data and support emerging high-bandwidth applications and services. such as 8K video streaming, virtual reality, augmented reality, online gaming, video conferencing, real-time data analytics and industrial automation.
Wi-Fi 7 introduces a 320MHz ultra-wide channel, 16 spatial streams, 4096-QAM modulation, Multi-RU,Multi-Link Operations (MLO),Preamble Puncturing, Multi-AP Collaboration, delivering speeds up to 4.8x faster than WiFi 6 and 13x faster than WiFi 5. Unlock more application scenarios than ever before.
What are the amazing performance enhancements of Wi-Fi 7?
4.8x faster: WiFi 7 increases throughput to 46Gbps
Low latency: 80% improvement in single-user low latency and 25% improvement in multi-user low latency
5x network capacity: With 320MHz and MLO (Multi-Link Operation), WiFi 7 delivers 5x the capacity of WiFi 6
4096 QAM modulation: 120% speed improvement with 4096-QAM, 200% speed improvement with 320MHz in bandwidth
MRU: 30% improvement in low latency
MLO: 80% improvement in low latency and nearly 2x the bandwidth
Wi-Fi 7 key technology?
Enhancements to WiFi 7 innovations enable large-scale data transfers and real-time interactions, all breakthroughs that will contribute to more eye-opening experiences in the digital age.
16 spatial streams
MIMO 16×16
In order to meet the growing traffic demand from the increasing number of WiFi devices, WiFi 7 increases the number of spatial streams from 8 to 16 compared to WiFi 6, meaning a direct doubling of theoretical transmission rates. This will allow parallel transmissions between devices, increasing data transfer efficiency and network capacity. Users will be able to perform multiple high-bandwidth tasks, such as downloading files, streaming media and playing online games at the same time, without worrying about network congestion or degraded performance.
120% faster Pack more data
4096-QAM
To further increase peak rates, Wi-Fi 7 utilizes up to 4096-QAM modulation, carrying 12 bits of information per symbol, which will increase the amount of information carried by Wi-Fi 7 by 20% compared to Wi-Fi 6, which carries 12 bits of information per symbol.This means users can transfer more information in the same amount of time, which speeds up data transfer and provides a better network experience. As a result, you can watch perfect 4K/8K videos, play large online games without latency, or stream live from your home computer.
OFDMA enhancement without congestion
Without wasting every resource
Multi-RU
In Wi-Fi 6, a single STA can only use a single RU (Resource Unit), which limits the flexibility of spectrum resource scheduling. Wi-Fi 7 breaks through this limitation by allowing a single STA to occupy multiple RUs at the same time, and to combine different RUs to improve transmission efficiency.
Preamble Puncturing
Previously, busy channel data could only be sent through the main channel. Wi-Fi 7 utilizes Preamble Puncturing technology to reduce interference from other devices in the same frequency band. By dividing the Preamble into temporal and spatial windows, signal conflicts with other devices can be avoided, providing clearer communication signals and more reliable connection quality.
Higher speed, lower latency
Multi-Link Operation (MLO)
Traditional WiFi devices use a single link to transmit data. In order to more effectively integrate the use of spectrum resources, WiFi 7 introduces Multi-Link Operation (MLO) technology, which allows devices to transmit and receive data on multiple channels simultaneously, allowing for multi-link aggregation or multi-link switching and co-operation, avoiding the congestion and interference problems that can occur on a single channel, thus providing higher throughput, lower latency, and more stable wireless connectivity.
Multi-AP Collaboration
In the existing published Wi-Fi protocols, more involved in a single AP itself how to achieve higher throughput, more access, Wi-Fi 7 not only focus on the performance and reliability of the AP itself to improve, but also pay attention to more reasonable resource allocation between multiple APs to achieve the optimal performance of the entire network. Currently, there are four key discussion directions, namely, Coordinated Spatial Reuse (CSR), Joint Transmission (JXT), Coordinated Orthogonal Frequency Division Multiple Access (C-OFDMA), and Coordinated Beamforming (CBF).
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