802.11n Achieves Milestone



Matthew Gast has a blog posting direct from the IEEE 802.11n meeting in London where the 2.0 draft of the 802.11n standard has apparently achieved some success at the ballot box.

I am sitting in the 802.11 working group meeting in London right now, and we have just voted overwhelmingly to send the draft out for another letter ballot vote. The vote was important enough that the chair required a rising vote, though a look around the room made it obvious that it passed; final count was 100-0 with five abstentions. This is a big milestone for the process because the nine-month slog to resolve the 12,000 initial comments is complete. It’ll be interesting to see how many comments the new draft gets.

Wikipedia explains in January 2004, IEEE announced that it had formed a new 802.11 Task Group (TGn) to develop a new amendment to the 802.11 standard for wireless local-area networks. The real data throughput is estimated to reach a theoretical 540 Mbit/s (which may require an even higher raw data rate at the physical layer), and should be up to 50 times faster than 802.11b, and up to 10 times faster than 802.11a or 802.11g.

In November 2006, TaskGroup “N” voted to accept draft version 1.06. An additional 800 comment resolutions were approved during the November session which will be incorporated into the next revision of the draft.

According to the IEEE 802.11 Working Group Project Timelines, the 802.11n standard is not due for final approval until April 2008.

An 802.11 access point may operate in one of three modes:

  1. Legacy (only 802.11a, b, and g)
  2. Mixed (both 802.11a, b, g, and n)
  3. Greenfield (only 802.11n) – maximum performance

Meanwhile, Intel’s new 802.11n chipset code-named “Kedron” will be unveiled at an event next Tuesday, according to TG Daily.

Kedron will be officially named “WiFi Link 4965 AGN”. There will be a Kedron part without draft-n capability (“WiFi Link 4965 AG”) as well.

Intel’s fourth-generation Centrino notebook platform, ‘Santa Rosa’, will take the hardware’s frontside bus speed to 800MHz when it ships, provisionally sometime in H1 2007.

Santa Rosa will incorporate ‘Crestine‘, the successor to today’s 945GM and 945PM graphics chipsets, and include ‘Kedron‘, Intel’s next-generation WiFi chipset that will include 802.11n (and possibly WiMAX). Kedron is 2X3 MIMO technology, two transmitters, three receivers with enhanced digital processing. Intel will also integrate Nokia’s HSDPA wideband CDMA technology inside the Santa Rosa platform.

At the Wireless Communications Alliance conference earlier this week, Intel showed off the EO, a UMPC with WiMAX access, made by TabletKiosk.

Intel’s Ofer-R chip, a single RF System on Chip, will support both Wi-Fi and WiMAX on a variety of frequencies. After that, Intel will be done.

Only kidding.

Posted by Sam Churchill on .

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