Wi-Fi 7
Icon used by the Wi-Fi Alliance for Wi-Fi 7 |
IEEE 802.11be-2024[1] or 802.11be, dubbed Extremely High Throughput (EHT), is a wireless networking standard in the IEEE 802.11 set of protocols[2][3] which is designated Wi-Fi 7 by the Wi-Fi Alliance.[4][5][6] It has built upon 802.11ax, focusing on WLAN indoor and outdoor operation with stationary and pedestrian speeds in the 2.4, 5, and 6 GHz frequency bands.[7]
In a single band, throughput reaches a theoretical maximum of 23 Gbit/s, although actual results are much lower.
Development of the 802.11be amendment began with an initial draft in March 2021 and the final version was published on 22 July 2025.[8][5][9][10] Despite this, numerous products were announced in 2022 based on draft standards, with retail availability in early 2023. On 8 January 2024, the Wi-Fi Alliance introduced its Wi-Fi Certified 7 program to certify Wi-Fi 7 devices as the technical requirements were essentially complete.[11][12][13]
Core features
The following are core features that have been approved as of Draft 3.0:
- 4096-QAM (4K-QAM) enables each symbol to carry 12 bits rather than 10 bits, resulting in 20% higher theoretical transmission rates than WiFi 6's 1024-QAM. This feature is optional for Wi-Fi 7 certification.[14]
- Contiguous and non-contiguous 320/160+160 MHz and 240/160+80 MHz bandwidth. This feature is optional for Wi-Fi 7 certification.[14][lower-alpha 1]
- Multi-link Operation (MLO), a feature that increases capacity by simultaneously sending and receiving data across different frequency bands and channels. (2.4 GHz, 5 GHz, 6 GHz). This feature is mandatory for Wi-Fi 7 certification.[14] Wi-Fi 7 builds on the technology of Wi-Fi 6 through the introduction of Multi-Link Operation (MLO), allowing users to connect to 2.4 GHz, 5 GHz, and 6 GHz bands simultaneously.[15]
- 8 spatial streams and Multiple Input Multiple Output (MIMO) protocol enhancements. (Initial 16 but removed from the specs in 2024).
- Flexible Channel Utilization – Interference currently can negate an entire Wi-Fi channel. With preamble puncturing, a portion of the channel that is affected by interference can be blocked off while continuing to use the rest of the channel. This feature is mandatory for Wi-Fi 7 certification.[14][lower-alpha 2]
- Multiple Resource Unit (MRU) – Improves OFDMA technology from Wi-Fi 6, allowing a single user to have multiple Resource Units. This feature is mandatory for Wi-Fi 7 certification.[14]
Candidate features
The main candidate features mentioned in the 802.11be Project Authorization Request (PAR) are:[16]
- Multi-Access Point (AP) Coordination (e.g. coordinated and joint transmission),
- Enhanced link adaptation and retransmission protocol (e.g. Hybrid Automatic Repeat Request (HARQ)).
- If needed, adaptation to regulatory rules specific to 6 GHz spectrum.[needs update][14][lower-alpha 1]
- Integrating Time-Sensitive Networking (TSN) IEEE 802.1Q extensions for low-latency real-time traffic:[17][18][19]
- IEEE 802.1AS timing and synchronization
- IEEE 802.11aa MAC Enhancements for Robust Audio Video Streaming (Stream Reservation Protocol over IEEE 802.11)
- IEEE 802.11ak Enhancements for Transit Links Within Bridged Networks (802.11 links in 802.1Q networks)
- Bounded latency: credit-based (IEEE 802.1Qav) and cyclic/time-aware traffic shaping (IEEE 802.1Qch/Qbv), asynchronous traffic scheduling (IEEE 802.1Qcr-2020)
- IEEE 802.11ax Scheduled Operation extensions for reduced jitter/latency
Additional features
Apart from the features mentioned in the PAR, there are newly introduced features:[20]
- Frame formats with improved forward-compatibility.
- Enhanced resource allocation in OFDMA.
- Implicit channel sounding, optimized to require less airtime.
- Support for direct links, managed by an access point.[clarification needed]
Rate set
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| MCS index[lower-roman 1] | Modulation type | Coding rate | Data rate (Mbit/s)[lower-roman 2] | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20 MHz channels | 40 MHz channels | 80 MHz channels | 160 MHz channels | 320 MHz channels | |||||||||||||
| 3200 ns GI[lower-roman 3] | 1600 ns GI | 800 ns GI | 3200 ns GI | 1600 ns GI | 800 ns GI | 3200 ns GI | 1600 ns GI | 800 ns GI | 3200 ns GI | 1600 ns GI | 800 ns GI | 3200 ns GI | 1600 ns GI | 800 ns GI | |||
| 0 | BPSK | 1/2 | 7 | 8 | 9 | 15 | 16 | 17 | 31 | 34 | 36 | 61 | 68 | 72 | 123 | 136 | 144 |
| 1 | QPSK | 1/2 | 15 | 16 | 17 | 29 | 33 | 34 | 61 | 68 | 72 | 122 | 136 | 144 | 245 | 272 | 288 |
| 2 | QPSK | 3/4 | 22 | 24 | 26 | 44 | 49 | 52 | 92 | 102 | 108 | 184 | 204 | 216 | 368 | 408 | 432 |
| 3 | 16-QAM | 1/2 | 29 | 33 | 34 | 59 | 65 | 69 | 123 | 136 | 144 | 245 | 272 | 288 | 490 | 544 | 577 |
| 4 | 16-QAM | 3/4 | 44 | 49 | 52 | 88 | 98 | 103 | 184 | 204 | 216 | 368 | 408 | 432 | 735 | 817 | 865 |
| 5 | 64-QAM | 2/3 | 59 | 65 | 69 | 117 | 130 | 138 | 245 | 272 | 288 | 490 | 544 | 576 | 980 | 1089 | 1153 |
| 6 | 64-QAM | 3/4 | 66 | 73 | 77 | 132 | 146 | 155 | 276 | 306 | 324 | 551 | 613 | 649 | 1103 | 1225 | 1297 |
| 7 | 64-QAM | 5/6 | 73 | 81 | 86 | 146 | 163 | 172 | 306 | 340 | 360 | 613 | 681 | 721 | 1225 | 1361 | 1441 |
| 8 | 256-QAM | 3/4 | 88 | 98 | 103 | 176 | 195 | 207 | 368 | 408 | 432 | 735 | 817 | 865 | 1470 | 1633 | 1729 |
| 9 | 256-QAM | 5/6 | 98 | 108 | 115 | 195 | 217 | 229 | 408 | 453 | 480 | 817 | 907 | 961 | 1633 | 1815 | 1922 |
| 10 | 1024-QAM | 3/4 | 110 | 122 | 129 | 219 | 244 | 258 | 459 | 510 | 540 | 919 | 1021 | 1081 | 1838 | 2042 | 2162 |
| 11 | 1024-QAM | 5/6 | 122 | 135 | 143 | 244 | 271 | 287 | 510 | 567 | 600 | 1021 | 1134 | 1201 | 2042 | 2269 | 2402 |
| 12 | 4096-QAM | 3/4 | 131 | 146 | 155 | 263 | 293 | 310 | 551 | 613 | 649 | 1103 | 1225 | 1297 | 2205 | 2450 | 2594 |
| 13 | 4096-QAM | 5/6 | 146 | 163 | 172 | 293 | 325 | 344 | 613 | 681 | 721 | 1225 | 1361 | 1441 | 2450 | 2722 | 2882 |
| 14 | BPSK-DCM-DUP | 1/2 | 7 | 8 | 9 | 15 | 17 | 18 | 31 | 34 | 36 | ||||||
| 15 | BPSK-DCM | 1/2 | 4 | 4 | 4 | 7 | 8 | 9 | 15 | 17 | 18 | 31 | 34 | 36 | 61 | 68 | 72 |
Comparison
IEEE 802.11 network PHY standards
| ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frequency range, or type |
PHY | Protocol | Release date[21] |
Frequency | Bandwidth | Stream data rate[22] | Allowable MIMO streams |
Modulation | Approximate range[citation needed] | |||
| Indoor | Outdoor | |||||||||||
| (GHz) | (MHz) | (Mbit/s) | ||||||||||
| 1–6 GHz | DSSS/FHSS[23] | 802.11-1997 | Jun 1997 | 2.4 | 22 | 1, 2 | N/A | DSSS, FHSS | 20 m (66 ft) | 100 m (330 ft) | ||
| HR-DSSS[23] | 802.11b | Sep 1999 | 2.4 | 22 | 1, 2, 5.5, 11 | N/A | DSSS | 35 m (115 ft) | 140 m (460 ft) | |||
| OFDM | 802.11a | Sep 1999 | 5 | 5/10/20 | 6, 9, 12, 18, 24, 36, 48, 54 (for 20 MHz bandwidth, divide by 2 and 4 for 10 and 5 MHz) |
N/A | OFDM | 35 m (115 ft) | 120 m (390 ft) | |||
| 802.11j | Nov 2004 | 4.9/5.0[D][24][failed verification] | ? | ? | ||||||||
| 802.11p | Jul 2010 | 5.9 | ? | 1,000 m (3,300 ft)[25] | ||||||||
| 802.11y | Nov 2008 | 3.7[A] | ? | 5,000 m (16,000 ft)[A] | ||||||||
| ERP-OFDM(, etc.) | 802.11g | Jun 2003 | 2.4 | 38 m (125 ft) | 140 m (460 ft) | |||||||
| HT-OFDM[26] | 802.11n | Oct 2009 | 2.4/5 | 20 | Up to 288.8[B] | 4 | MIMO-OFDM | 70 m (230 ft) | 250 m (820 ft)[27][failed verification] | |||
| 40 | Up to 600[B] | |||||||||||
| VHT-OFDM[26] | 802.11ac | Dec 2013 | 5 | 20 | Up to 346.8[B] | 8 | MIMO-OFDM | 35 m (115 ft)[28] | ? | |||
| 40 | Up to 800[B] | |||||||||||
| 80 | Up to 1733.2[B] | |||||||||||
| 160 | Up to 3466.8[B] | |||||||||||
| HE-OFDM | 802.11ax | September 2019 [29] | 2.4/5/6 | 20 | Up to 1147[F] | 8 | MIMO-OFDM | 30 m (98 ft) | 120 m (390 ft) [G] | |||
| 40 | Up to 2294[F] | |||||||||||
| 80 | Up to 4804[F] | |||||||||||
| 80+80 | Up to 9608[F] | |||||||||||
| mmWave | DMG[30] | 802.11ad | Dec 2012 | 60 | 2,160 | Up to 6,757[31] (6.7 Gbit/s) |
N/A | OFDM, single carrier, low-power single carrier | 3.3 m (11 ft)[32] | ? | ||
| 802.11aj | Apr 2018 | 45/60[C] | 540/1,080[33] | Up to 15,000[34] (15 Gbit/s) |
4[35] | OFDM, single carrier[35] | ? | ? | ||||
| EDMG[36] | 802.11ay | Est. May 2020 | 60 | 8000 | Up to 20,000 (20 Gbit/s)[37] | 4 | OFDM, single carrier | 10 m (33 ft) | 100 m (328 ft) | |||
| Sub-1 GHz IoT | TVHT[38] | 802.11af | Feb 2014 | 0.054–0.79 | 6–8 | Up to 568.9[39] | 4 | MIMO-OFDM | ? | ? | ||
| S1G[38] | 802.11ah | Dec 2016 | 0.7/0.8/0.9 | 1–16 | Up to 8.67 (@2 MHz)[40] | 4 | ? | ? | ||||
| 2.4 GHz, 5 GHz | WUR | 802.11ba[E] | Est. Sep 2020 | 2.4/5 | 4.06 | 0.0625, 0.25 (62.5 kbit/s, 250 kbit/s) | N/A | OOK (Multi-carrier OOK) | ? | ? | ||
| Light (Li-Fi) | IR | 802.11-1997 | Jun 1997 | ? | ? | 1, 2 | N/A | PPM | ? | ? | ||
| ? | 802.11bb | Est. Jul 2021 | 60000-790000 | ? | ? | N/A | ? | ? | ? | |||
| 802.11 Standard rollups | ||||||||||||
| 802.11-2007 | Mar 2007 | 2.4, 5 | Up to 54 | DSSS, OFDM | ||||||||
| 802.11-2012 | Mar 2012 | 2.4, 5 | Up to 150[B] | DSSS, OFDM | ||||||||
| 802.11-2016 | Dec 2016 | 2.4, 5, 60 | Up to 866.7 or 6,757[B] | DSSS, OFDM | ||||||||
| ||||||||||||
802.11be Task Group
The 802.11be Task Group is led by individuals affiliated with Qualcomm, Intel, and Broadcom. Those affiliated with Huawei, Maxlinear, NXP, and Apple also have senior positions.[10]
Commercial availability
Hardware
The Wi-Fi Alliance maintains a list of Wi-Fi 7 certified devices.[41]
Software
Android 13 and higher provide support for Wi-Fi 7.[42]
The Linux 6.2 kernel provides support for Wi-Fi 7 devices. The 6.4 kernel added Wi-Fi 7 mesh support.[43] Linux 6.5 included significant driver support by Intel engineers, particularly support for MLO.[44]
Support for Wi-Fi 7 was added to Windows 11, as of build 26063.1.[45][46]
Notes
References
- ↑ "IEEE 802.11be-2024" (in en). https://standards.ieee.org/ieee/802.11be/7516/.
- ↑ "Wi-Fi 7". Wi-Fi Alliance. https://www.wi-fi.org/who-we-are/current-work-areas#Wi-Fi%207.
- ↑ Jackson, Mark (2024-01-08). "Wi-Fi Alliance Officially Certifies Kit for New Wi-Fi 7 Standard" (in en). https://www.ispreview.co.uk/index.php/2024/01/wi-fi-alliance-officially-certifies-kit-for-new-wi-fi-7-standard.html.
- ↑ Shankland, Stephen (2019-09-03). "Wi-Fi 6 is barely, but Wi-Fi 7 is already on the way – With improvements to Wi-Fi 6 and its successor, Qualcomm is working to boost speeds and overcome congestion on wireless networks.". https://www.cnet.com/news/wi-fi-6-is-barely-here-but-wi-fi-7-is-already-on-the-way/.
- ↑ 5.0 5.1 Khorov, Evgeny (2020-05-08). "Current Status and Directions of IEEE 802.11be, the Future Wi-Fi 7". IEEE 8: 88664–88688. doi:10.1109/ACCESS.2020.2993448. Bibcode: 2020IEEEA...888664K.
- ↑ "Wi-Fi Generations". Wi-Fi Alliance. https://www.wi-fi.org/discover-wi-fi.
- ↑ López-Pérez, David (12 Feb 2019). "IEEE 802.11be – Extremely High Throughput: The Next Generation of Wi-Fi Technology Beyond 802.11ax". arXiv:1902.04320 [cs.IT].
- ↑ "Wi-Fi 7 (802.11be) Technical Guide" (in en). 2024-12-03. https://documentation.meraki.com/MR/Wi-Fi_Basics_and_Best_Practices/Wi-Fi_7_(802.11be)_Technical_Guide.
- ↑ "IEEE 802.11, The Working Group Setting the Standards for Wireless LANs". https://www.ieee802.org/11/Reports/802.11_Timelines.htm.
- ↑ 10.0 10.1 "IEEE P802.11 – TASK GROUP BE (EHT) – GROUP INFORMATION UPDATE". https://www.ieee802.org/11/Reports/tgbe_update.htm.
- ↑ "The Next Generation of Wi-Fi Is Officially Here. But You Don't Need It (Yet)." (in en-US). The New York Times. 2024-02-16. ISSN 0362-4331. https://www.nytimes.com/wirecutter/reviews/do-you-need-wi-fi-7/.
- ↑ Boever, Nick (2024-01-17). "The First Wi-Fi 7 Certified Devices Have Begun to Hit the Market" (in en-US). https://www.cepro.com/products/first-wi-fi-7-certified-products-now-available/.
- ↑ "Intel® Wi-Fi 7 Series Products and Solutions with Intel® Wi-Fi 7..." (in en). https://www.intel.com/content/www/us/en/products/details/wireless/wi-fi-7-series.html.
- ↑ 14.0 14.1 14.2 14.3 14.4 14.5 "Wi-Fi 7 (802.11be) Technical Guide". 3 December 2024. https://documentation.meraki.com/MR/Wi-Fi_Basics_and_Best_Practices/Wi-Fi_7_(802.11be)_Technical_Guide.
- ↑ "A Complete Guide to Wi-Fi 7". 2024-05-30. https://myrepublic.net/sg/blog/broadband/a-complete-guide-to-wifi-7/.
- ↑ "802.11be Project Authorization Request (PAR)". https://mentor.ieee.org/802.11/dcn/18/11-18-1231-06-0eht-eht-draft-proposed-par.docx.
- ↑ "IEEE 802.11 features towards RAW". November 2003. https://datatracker.ietf.org/meeting/106/materials/slides-106-raw-04-ieee-status-00.
- ↑ Wi-Fi TSN Capabilities datatracker.ietf.org
- ↑ 802.1 TSN over 802.11 with updates from developments in 802.11be ieee802.org
- ↑ E. Khorov; I. Levitsky; I. F. Akyildiz (2020). "Current Status and Directions of IEEE 802.11be, the Future Wi-Fi 7". IEEE Access (IEEE) 8 (in press): 88664–88688. doi:10.1109/ACCESS.2020.2993448. Bibcode: 2020IEEEA...888664K.
- ↑ "Official IEEE 802.11 working group project timelines". January 26, 2017. http://grouper.ieee.org/groups/802/11/Reports/802.11_Timelines.htm. Retrieved 2017-02-12.
- ↑ "Wi-Fi CERTIFIED n: Longer-Range, Faster-Throughput, Multimedia-Grade Wi-Fi® Networks". Wi-Fi Alliance. September 2009. http://www.wi-fi.org/register.php?file=wp_Wi-Fi_CERTIFIED_n_Industry.pdf.[|permanent dead link|dead link}}]
- ↑ 23.0 23.1 Banerji, Sourangsu; Chowdhury, Rahul Singha. "On IEEE 802.11: Wireless LAN Technology". arXiv:1307.2661.
{{cite arXiv}}: CS1 maint: missing class (link) - ↑ "The complete family of wireless LAN standards: 802.11 a, b, g, j, n". https://cdn.rohde-schwarz.com/pws/dl_downloads/dl_common_library/dl_news_from_rs/183/n183_lan.pdf.
- ↑ Abdelgader, Abdeldime M.S.; Wu, Lenan (2014). "The Physical Layer of the IEEE 802.11p WAVE Communication Standard: The Specifications and Challenges". World Congress on Engineering and Computer Science. http://www.iaeng.org/publication/WCECS2014/WCECS2014_pp691-698.pdf.
- ↑ 26.0 26.1 Wi-Fi Capacity Analysis for 802.11ac and 802.11n: Theory & Practice
- ↑ Belanger, Phil; Biba, Ken (2007-05-31). "802.11n Delivers Better Range". Wi-Fi Planet. http://www.wi-fiplanet.com/tutorials/article.php/3680781.
- ↑ "IEEE 802.11ac: What Does it Mean for Test?". LitePoint. October 2013. http://litepoint.com/whitepaper/80211ac_Whitepaper.pdf.
- ↑ "Wi-Fi 6 Routers: What You Can Buy Now (and Soon) | Tom's Guide". https://www.tomsguide.com/amp/us/best-wifi-6-routers,review-6115.html.
- ↑ "IEEE Standard for Information Technology--Telecommunications and information exchange between systems Local and metropolitan area networks--Specific requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 3: Enhancements for Very High Throughput to Support Chinese Millimeter Wave Frequency Bands (60 GHz and 45 GHz)". IEEE Std 802.11aj-2018. April 2018. doi:10.1109/IEEESTD.2018.8345727. https://ieeexplore.ieee.org/document/8345727.
- ↑ "802.11ad - WLAN at 60 GHz: A Technology Introduction". Rohde & Schwarz GmbH. November 21, 2013. p. 14. https://cdn.rohde-schwarz.com/pws/dl_downloads/dl_application/application_notes/1ma220/1MA220_2e_WLAN_11ad_WP.pdf.
- ↑ "Connect802 - 802.11ac Discussion". https://www.connect802.com/802-11ac-discussion.
- ↑ "Understanding IEEE 802.11ad Physical Layer and Measurement Challenges". https://www.keysight.com/upload/cmc_upload/All/22May2014Webcast.pdf.
- ↑ "802.11aj Press Release". https://mentor.ieee.org/802.11/dcn/18/11-18-0698-01-0000-802-11aj-press-release.docx.
- ↑ 35.0 35.1 Hong, Wei; He, Shiwen; Wang, Haiming; Yang, Guangqi; Huang, Yongming; Chen, Jixing; Zhou, Jianyi; Zhu, Xiaowei et al. (2018). "An Overview of China Millimeter-Wave Multiple Gigabit Wireless Local Area Network System". IEICE Transactions on Communications E101.B (2): 262-276. doi:10.1587/transcom.2017ISI0004. https://www.jstage.jst.go.jp/article/transcom/E101.B/2/E101.B_2017ISI0004/_pdf.
- ↑ "IEEE 802.11ay: 1st real standard for Broadband Wireless Access (BWA) via mmWave – Technology Blog". https://techblog.comsoc.org/2018/06/15/ieee-802-11ay-1st-real-standard-for-broadband-wireless-access-bwa-via-mmwave/.
- ↑
Sun, Rob; Xin, Yan; Aboul-Maged, Osama; Calcev, George; Wang, Lei; Au, Edward; Cariou, Laurent; Cordeiro, Carlos et al.. "P802.11 Wireless LANs". IEEE. pp. 2,3. Archived from the original. Error: If you specify
|archiveurl=, you must also specify|archivedate=. https://web.archive.org/web/20171206183820/https://mentor.ieee.org/802.11/dcn/15/11-15-1074-00-00ay-11ay-functional-requirements.docx. Retrieved December 6, 2017. - ↑ 38.0 38.1 "802.11 Alternate PHYs A whitepaper by Ayman Mukaddam". https://www.cwnp.com/uploads/802-11alternatephyswhitepaper.pdf.
- ↑ Lee, Wookbong; Kwak, Jin-Sam; Kafle, Padam; Tingleff, Jens; Yucek, Tevfik; Porat, Ron; Erceg, Vinko; Lan, Zhou et al. (2012-07-10). "TGaf PHY proposal". IEEE P802.11. https://mentor.ieee.org/802.11/dcn/12/11-12-0809-05-00af-tgaf-phy-proposal.docx. Retrieved 2013-12-29.
- ↑ Sun, Weiping; Choi, Munhwan; Choi, Sunghyun (July 2013). "IEEE 802.11ah: A Long Range 802.11 WLAN at Sub 1 GHz". Journal of ICT Standardization 1 (1): 83–108. doi:10.13052/jicts2245-800X.115. http://riverpublishers.com/journal/journal_articles/RP_Journal_2245-800X_115.pdf.
- ↑ "Product Finder Results | Wi-Fi Alliance". https://www.wi-fi.org/product-finder.
- ↑ "Android 13 review". 20 October 2022. https://www.tomsguide.com/reviews/android-13.
- ↑ "Linux 6.4 Has Many Networking Changes from a New Performance Tunable to More WiFi 7". https://www.phoronix.com/news/Linux-6.4-Networking.
- ↑ "Linux 6.5 Continues Making Preparations for WiFi 7, Enabling New Hardware". https://www.phoronix.com/news/WiFi-7-Linux-6.5.
- ↑ Blog, Windows Insider (22 February 2024). "Announcing Windows 11 Insider Preview Build 26063 (Canary Channel)" (in en-US). https://blogs.windows.com/windows-insider/2024/02/22/announcing-windows-11-insider-preview-build-26063-canary-channel/.
- ↑ Carrasqueira, João (2024-02-22). "Windows 11 preview adds support for Wi-Fi 7" (in en). https://www.xda-developers.com/windows-11-build-26063/.
