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Old Jan 23, 2012, 01:36 AM   #1
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Apple Expected to Adopt 802.11ac 5G Gigabit Wi-Fi This Year





AppleInsider claims that Apple is planning on incorporating support for the new faster 802.11ac Wi-Fi specification into products this year.
Quote:
The new 802.11ac standard achieves much faster wireless networking speeds than the existing 802.11n specification (in use on the latest Mac, AirPort and iOS devices) by using 2 to 4 times the frequency bandwidth (from 80 to 160MHz), more efficient data transfers through sophisticated modulation, and more antennas (up to 8; existing standards support up to 4, while Apple's Macs currently use up to 3).
This "Gigabit WiFi" offers speeds 3 times as fast as existing 802.11n wireless networks can with speeds of over 1 Gigabit per second.

Despite the specification not being finalized, Broadcom has already announced a family of chips supporting 802.11ac Wi-Fi. The final specification is expected to be certified in the second half of this year.

Apple and other manufacturers have been known to deploy un-finalized wireless technology in the past. Apple deployed 802.11n in new AirPort base stations years before the official standard certification.

Article Link: Apple Expected to Adopt 802.11ac 5G Gigabit Wi-Fi This Year
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Old Jan 23, 2012, 01:39 AM   #2
iEric
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Perfect! Can't wait -- My TC broke 4 months ago!
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Old Jan 23, 2012, 01:42 AM   #3
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How will this work in congested wifi signal areas?

It is bad enough maintaining a clean signal when my neighbours use 40MHz, let alone 80 to 160MHz
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Old Jan 23, 2012, 01:50 AM   #4
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How bad does it kill the range when 2.4 ghz is removed?
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Old Jan 23, 2012, 01:52 AM   #5
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If this means faster transfer speeds to an external hard drive connected to an Airport Extreme via USB port, I'll easily make the purchase.

I have 1.3TB of data on my shared drive, and on a weekly basis about 20-40gb of data is transferred to the drive. Watching files copy at 5-10mb/s is pretty sad.
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Old Jan 23, 2012, 02:05 AM   #6
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Ethernet

Waiting for 10Gbs ethernet myself.

1Gbs ethernet is getting a little slow for moving media over a LAN.
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Old Jan 23, 2012, 02:09 AM   #7
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Will this standard support the bandwidth capable of wireless video mirroring of a hypothetical retina iPad 3 using a hypothetical Apple TV 3?

Another thing—is it too much to ask that the numbering system for these “standards” go “a, b, c, d, e…” instead of “a, b, g, n, ac”? Because in 15 years we’ll end up with something stupid like 802.11no.

I know people like my grandma will ask “is n newer than ac?”

And another thing—I wish USB updated this often. Make everything backwards compatible like it is now but just update the speed every few years instead of waiting. Then most computers today would have at least a fairly speedy USB port compared to 2.0.
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Old Jan 23, 2012, 02:11 AM   #8
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Quote:
Originally Posted by OriginalMacRat View Post
Waiting for 10Gbs ethernet myself.

1Gbs ethernet is getting a little slow for moving media over a LAN.
It's effectively 90MB/sec with overhead. That's slow for you?

Unless you're using GbE for pro use, then that's another issue. Fiber is good for that kind of stuff.
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Old Jan 23, 2012, 02:11 AM   #9
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Bring it on Apple! This will definitely lead to better airplay streaming of movies, and hopefully Mac -> ATV 1080p streaming!
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Old Jan 23, 2012, 02:14 AM   #10
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Originally Posted by wikus View Post
If this means faster transfer speeds to an external hard drive connected to an Airport Extreme via USB port, I'll easily make the purchase.

I have 1.3TB of data on my shared drive, and on a weekly basis about 20-40gb of data is transferred to the drive. Watching files copy at 5-10mb/s is pretty sad.
Well considering that 5-10 mb/s is going to be around 0.5-1 gigabit/ s speeds the answer is no because you are bumping against the max speed of the network that having on 20% overhead is being nice as local laws and wifi tend to not care about having extra overhead as they have space to burn.
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Old Jan 23, 2012, 02:18 AM   #11
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Originally Posted by DanielCoffey View Post
How will this work in congested wifi signal areas?

It is bad enough maintaining a clean signal when my neighbours use 40MHz, let alone 80 to 160MHz
In actual fact. the 5GHZ band takes you AWAY from congestion. The 2.4 band is where the interference is at present. My TC operating at 5GHZ and 2.4 (it auto switches) gives a far better connection on my IOS devices than the older standard ever could.
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Old Jan 23, 2012, 02:49 AM   #12
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Bring it on Apple! This will definitely lead to better airplay streaming of movies, and hopefully Mac -> ATV 1080p streaming!
Exactly what I was thinking. This should open the door for 1080p content in iTunes content too.
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Old Jan 23, 2012, 02:53 AM   #13
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Logical speculation, no sources though. Hopefully it will be included in Ivy Bridge 2012 Mac Upgrades as well as a 2012 base station upgrades at the same time.
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Old Jan 23, 2012, 03:48 AM   #14
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I hope that the speed can be promoted up to 10 Gb/s very soon. Then, a computer display, such as an Apple Thunderbolt Display with WIFI capability, can be connected to a desktop computer, such as a Mac Pro or a Mac mini, through WIFI, which will be the beginning of a new computing era.
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Old Jan 23, 2012, 03:49 AM   #15
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Any wireless improvement is good to me. The 130Mb/ps I get on 2.4GHz N isn't really fast enough for me. I hate accessing large files or doing time machine backups to my server over WiFi. Time Machine alone goes 5-6x faster over 1Gb ethernet from my Desktop -> Server as my Notebook -> Server (WiFi).
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Old Jan 23, 2012, 03:57 AM   #16
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This sounds good, but without a ratified standard this means possible issues later on, where a simple firmware upgrade may not suffice, especially if newer Broadcom chips are released (newer revisions) this means that multiple versions will be available without the consumers knowledge.

Remember 802.11n took over 7 years to be ratified, and never heard the end of companies releasing "draft" hardware for this standard, and compatibility issues later arising due to different chip revisions inside different brands of hardware.

As usual the trick of this is to hold back till 802.11ac is fully ratified.
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Old Jan 23, 2012, 03:57 AM   #17
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Quote:
Originally Posted by MacRumors View Post
The new 802.11ac standard achieves much faster wireless networking speeds than the existing 802.11n specification (in use on the latest Mac, AirPort and iOS devices) by using 2 to 4 times the frequency bandwidth (from 80 to 160MHz), more efficient data transfers through sophisticated modulation, and more antennas (up to 8; existing standards support up to 4, while Apple's Macs currently use up to 3).
Cook me up, Scotty.

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Old Jan 23, 2012, 03:58 AM   #18
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Meh.
I likes wires.
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Old Jan 23, 2012, 04:08 AM   #19
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Quote:
Originally Posted by macduke View Post
Will this standard support the bandwidth capable of wireless video mirroring of a hypothetical retina iPad 3 using a hypothetical Apple TV 3?

Another thing—is it too much to ask that the numbering system for these “standards” go “a, b, c, d, e…” instead of “a, b, g, n, ac”? Because in 15 years we’ll end up with something stupid like 802.11no.

I know people like my grandma will ask “is n newer than ac?”

And another thing—I wish USB updated this often. Make everything backwards compatible like it is now but just update the speed every few years instead of waiting. Then most computers today would have at least a fairly speedy USB port compared to 2.0.
The 802.11 standards set implements wireless technologies in a set of frequencies. Each of the letters you see after '802.11' count up alphabetically from the first incarnation of the standard. 'a' and 'b' you're familiar with, 'c' to 'f' and 'h' to 'k' cover other standards that the 802.11 group have created to work with wireless LANs.

802.11i is the standard that deals with security, most notably WPA2 and WPS. So when they decide to create a new speed of WLAN, other letters have been used to represent those other standards.

All that said, yes, they could easily have a 'consumerised' naming system like USB has (High-Speed and SuperSpeed). But with 5 'speeds' of wireless, even this system could be a bit overwhelming. Just understand that, the bigger the value in alphabet-base counting, the faster...
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Last edited by sammich; Jan 23, 2012 at 04:14 AM. Reason: Yeah, that makes it much easier to understand....
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Old Jan 23, 2012, 04:29 AM   #20
MacDarcy
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Well....since I am waiting for it.....heres to hoping this makes it into the iPad 3 hee hee hee. :-P
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Old Jan 23, 2012, 05:52 AM   #21
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Quote:
Originally Posted by FrankHahn View Post
I hope that the speed can be promoted up to 10 Gb/s very soon. Then, a computer display, such as an Apple Thunderbolt Display with WIFI capability, can be connected to a desktop computer, such as a Mac Pro or a Mac mini, through WIFI, which will be the beginning of a new computing era.
Welcome to last year :

http://www.intel.com/content/www/us/...s-display.html

WiDi does just this, it's Intel's implementation of the WirelessHD protocol (60 Ghz or if you will, IEEE what 802.11ad will define under the umbrella of WiGig, a competitor of WirelessHD).

On-topic : It will be nice to get a bump up from 802.11n, but frankly wireless is abysmal regardless and reaching the theoritcal top speeds is never easy, even standing next to the base stations. I do get a giggle in these threads when the uninitiated though think we can't really do stuff like stream "1080p full HD" without these advances. 1080p streams just fun already over 802.11n, it's not a matter of pixels but of compression and bitrates.

----------

Quote:
Originally Posted by sammich View Post
The 802.11 standards set implements wireless technologies in a set of frequencies. Each of the letters you see after '802.11' count up alphabetically from the first incarnation of the standard. 'a' and 'b' you're familiar with, 'c' to 'f' and 'h' to 'k' cover other standards that the 802.11 group have created to work with wireless LANs.
Just to further drive the point home :

Quote:
IEEE 802.11a: 54 Mbit/s, 5 GHz standard (1999, shipping products in 2001)
IEEE 802.11b: Enhancements to 802.11 to support 5.5 and 11 Mbit/s (1999)
IEEE 802.11c: Bridge operation procedures; included in the IEEE 802.1D standard (2001)
IEEE 802.11d: International (country-to-country) roaming extensions (2001)
IEEE 802.11e: Enhancements: QoS, including packet bursting (2005)
IEEE 802.11F: Inter-Access Point Protocol (2003) Withdrawn February 2006
IEEE 802.11g: 54 Mbit/s, 2.4 GHz standard (backwards compatible with b) (2003)
IEEE 802.11h: Spectrum Managed 802.11a (5 GHz) for European compatibility (2004)
IEEE 802.11i: Enhanced security (2004)
IEEE 802.11j: Extensions for Japan (2004)
IEEE 802.11-2007: A new release of the standard that includes amendments a, b, d, e, g, h, i & j. (July 2007)
IEEE 802.11k: Radio resource measurement enhancements (2008)
IEEE 802.11n: Higher throughput improvements using MIMO (multiple input, multiple output antennas) (September 2009)
IEEE 802.11p: WAVE—Wireless Access for the Vehicular Environment (such as ambulances and passenger cars) (July 2010)
IEEE 802.11r: Fast BSS transition (FT) (2008)
IEEE 802.11s: Mesh Networking, Extended Service Set (ESS) (July 2011)
IEEE 802.11T: Wireless Performance Prediction (WPP)—test methods and metrics Recommendation cancelled
IEEE 802.11u: Interworking with non-802 networks (for example, cellular) (February 2011)
IEEE 802.11v: Wireless network management (February 2011)
IEEE 802.11w: Protected Management Frames (September 2009)
IEEE 802.11y: 3650–3700 MHz Operation in the U.S. (2008)
IEEE 802.11z: Extensions to Direct Link Setup (DLS) (September 2010)
IEEE 802.11mb: Maintenance of the standard; will become 802.11-2011 (~ December 2011)
IEEE 802.11aa: Robust streaming of Audio Video Transport Streams (~ March 2012)
IEEE 802.11ac: Very High Throughput <6 GHz;[22] potential improvements over 802.11n: better modulation scheme (expected ~10% throughput increase); wider channels (80 or even 160 MHz), multi user MIMO;[23] (~ December 2012)
IEEE 802.11ad: Very High Throughput 60 GHz (~ Dec 2012) - see WiGig
IEEE 802.11ae: QoS Management (~ Dec 2011)
IEEE 802.11af: TV Whitespace (~ Mar 2012)
IEEE 802.11ah: Sub 1Ghz (~ July 2013)
IEEE 802.11ai: Fast Initial Link Setup (~ Sep 2014)
http://en.wikipedia.org/wiki/IEEE_80...and_amendments

Notice how 802.11ac isn't due for ratification until December 2012. So if Apple offers it before that, we'll be getting a "draft" implementation like we did with the original 802.11n.
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Old Jan 23, 2012, 05:52 AM   #22
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What happened to 802.22?
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Old Jan 23, 2012, 05:59 AM   #23
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What happened to 802.22?
Why would that have anything to do with computer/device local networking ?

http://en.wikipedia.org/wiki/IEEE_802.22

Quote:
IEEE 802.22 is a standard for Wireless Regional Area Network (WRAN) using white spaces in the TV frequency spectrum.[1] The development of the IEEE 802.22 WRAN standard is aimed at using cognitive radio (CR) techniques to allow sharing of geographically unused spectrum allocated to the Television Broadcast Service, on a non-interfering basis, to bring broadband access to hard-to-reach, low population density areas, typical of rural environments, and is therefore timely and has the potential for a wide applicability worldwide.
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Old Jan 23, 2012, 05:59 AM   #24
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10 Gigabit Ethernet is where my money will be. I spent enough getting N900 routers to get any significant benefits of transfer speeds. I can currently transfer 80-90 read and 40-50 write from NAS over Gigabit LAN. I am hungry for speed.
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Old Jan 23, 2012, 06:10 AM   #25
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Why would that have anything to do with computer/device local networking ?
Because I want my wireless local network to be available on my entire property... 20 acres.
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