What Is Wi-Fi 6E and Do I Need It?
There are many ways to make your internet faster, but the specifics depend on what you’re willing to spend right now….
We collectively stream more movies and TV shows, play more online games, and make more video calls than ever before, and all this activity puts a serious strain on our Wi-Fi networks. We know the latest Wi-Fi 6 standard offers a range of benefits, including faster and more reliable access, but how does Wi-Fi 6E fit in?
“Wi-Fi 6E is the name for Wi-Fi 6 devices that operate in the 6-GHz band, a new swath of unlicensed spectrum that more than 58 countries across the Americas, EMEA, and APAC have made available for Wi-Fi to date,” explains Kevin Robinson, senior vice president of marketing for the Wi-Fi Alliance.
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Wi-Fi 6E Explained
Until now, our Wi-Fi operated on two bands: 2.4 GHz and 5 GHz. The Wi-Fi 6 standard employs various features to improve the efficiency and data throughput of your wireless network and reduce latency for those two bands.
“Wi-Fi 6E extends the capacity, efficiency, coverage, and performance benefits of Wi-Fi 6 into the 6-GHz band,” says Robinson. “With up to seven additional super-wide 160-MHz channels available, Wi-Fi 6E devices deliver greater network performance and support more Wi-Fi users at once, even in very dense and congested environments.”
Each band is a chunk of frequency. The 2.4-GHz band comprises 11 channels that are each 20 megahertz (MHz) wide. The 5-GHz band has 45 channels, but they can be fused to create 40-MHz or 80-MHz channels, enabling them to transmit more data at once. The 6-GHz band supports 60 channels that can be up to 160 MHz wide.
That’s a huge chunk of extra capacity. Think of it as going from a single-track road (2.4 GHz) to a three-lane highway (5 GHz) to a six-lane superhighway (6 GHz). The analogy works for coverage too. Higher frequencies have a tougher time penetrating solid walls and floors, so the single track 2.4-GHz roads reach further than the 5-GHz highways, which reach further than the 6-GHz superhighways.
Rebranding Standards
Wi-Fi standards have traditionally been quite confusing. The Institute of Electrical and Electronic Engineers (IEEE) establishes Wi-Fi standards, and those standards are certified by the Wi-Fi Alliance, which currently has 866 member companies, including Apple, Facebook, Google, Intel, Microsoft, Qualcomm, Samsung, Sony, and many more.
The Wi-Fi Alliance realized (correctly) that a standard named IEEE 802.11ax might be easier to grasp if it was rebranded as Wi-Fi 6. This move retroactively makes the IEEE 802.11ac standard Wi-Fi 5, IEEE 802.11 becomes Wi-Fi 4, and so on. Each of these standards is an umbrella term for a range of new features and improvements.
To give one example, Wi-Fi 4 introduced MIMO (multiple-input, multiple-output) technology to allow for multiple simultaneous transmissions to and from a device. The second wave of Wi-Fi 5 products introduced MU-MIMO, (MU stands for multi-user), enabling multiple devices to connect simultaneously to send and receive data. Wi-Fi 6 improves MU-MIMO and introduces OFDMA (orthogonal frequency-division multiple access) enabling a single transmission to deliver data to multiple devices at once.
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