Broadcom Launches New 650Mbps 802.11ac Wi-Fi Chip for Mobile Devices

Discussion in 'MacRumors.com News Discussion' started by MacRumors, Sep 3, 2014.

  1. macrumors bot

    MacRumors

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    #1
    [​IMG]


    Communications chip maker Broadcom today announced a new 5G 802.11ac Wi-Fi chip designed for smartphones.

    Capable of data throughput speeds of up to 650 Mbps, the BC4358 is Broadcom's second chip to use 2x2 MIMO (multiple input multiple output), bringing up to twice the Wi-Fi performance with 25 percent more power efficiency than 1x1 MIMO chips.

    [​IMG]
    MIMO is a technology that utilizes multiple antennas for both the transmitter and receiver to improve communication performance. Apple has adopted MIMO technology in the iPad Air and iPad mini with Retina display.
    According to Broadcom, the new chips are already in production and will begin shipping in smartphones during the third quarter of 2014, which means the timing could possibly be right for inclusion in the iPhone 6.

    According to Broadcom, its BCM4358 chip includes improved location accuracy that's accurate "down to one meter" for better indoor location-based services, which aligns with Apple's own indoor mapping aspirations. It's also the first chip that enables Angle-of-Arrival direction finding technology, another feature Apple could make use of. Rumors have suggested Apple is working on indoor mapping features for a future iOS 8 update.

    It isn't known if Apple's iPhone 6 will use this specific chip, but Broadcom is one of Apple's partners, supplying chips for both its desktop and mobile devices. Apple uses Broadcom chips in its line of Macs that support 802.11ac, including the MacBook Air, Retina MacBook Pro, and iMac.

    Rumors have suggested that the iPhone 6 will likely support 802.11ac, which has been included in Apple's Macs since 2013. 802.11ac Wi-Fi is designed to offer speeds up to three times as fast as existing 802.11n wireless networks.

    Article Link: Broadcom Launches New 650Mbps 802.11ac Wi-Fi Chip for Mobile Devices
     
  2. macrumors regular

    Joined:
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    #2
    unless you're on sprint.

    then you're still screwed

    /s
     
  3. macrumors demi-god

    Zwhaler

    Joined:
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    #3
    Cool, but I don't even know where to find a 650Mbps Wi-Fi network. Does this mean using existing networks will get improved performance with this chip?
     
  4. macrumors regular

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    #4
    Hmm

    Will find it's way to a new Airport Extreme?
     
  5. macrumors 68000

    Mattsasa

    Joined:
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    Minnesota
    #5
    what is the bandwidth required for Wi-Di...

    wireless display.. uncompressed that is.

    Will be sick when smartphones can wirelessly display TVs.

    not like apple TV. air play.

    but direct uncompressed streaming, like WiDi
     
  6. macrumors 6502

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    #6
    The existing tower Airport Extreme already supports 3 stream 802.11ac. This is great for a mobile device, but for a base station or laptop the stuff Apple's using now already outclasses it.
     
  7. macrumors 6502

    Joined:
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    New York City
    #7
    Gigabit WiFi term...

    "Rumors have suggested that the iPhone 6 will likely support 802.11ac, which has been included in Apple's Macs since 2013. 802.11ac, or "Gigabit" Wi-Fi is designed to offer speeds up to three times as fast as existing 802.11n wireless networks."

    I'd definitely NOT use the term "Gigabit WiFi" when talking about 802.11ac in a smartphone form factor. That simple isn't happening, MacRumors shouldn't confuse the readers with careless statements like that.

    The only time you'll actually achieve "gigabit" WiFi 1300Mbps handshake is when using 3x3 MIMO AC router + 3x3 MIMO capable device like a laptop/desktop and 80MHz channel. Even then the chances of getting the actual 1Gbps rates is slim to none.
     
  8. macrumors 6502a

    Joined:
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    #8
    Depends on how "uncompressed". 1080p can need upwards of 3Gb/s.

    http://en.wikipedia.org/wiki/1080p
     
  9. macrumors 6502

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    #9
    Here:
    http://store.apple.com/us/product/ME918LL/A/airport-extreme?fnode=4d

    This isn't going to do anything for non-ac networks, though. Don't expect improved performance at Starbucks any time soon.
     
  10. macrumors 6502a

    Joined:
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    #10
    Also known as last year.

    I noticed during the Samsung keynote that they also referred to things as "since 2013" as if it had been quite some time.
     
  11. macrumors 603

    Menel

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    #11
    Go make a friend in Chattanooga with gigafiber and an Airport Express.
     
  12. macrumors regular

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    #12
    Apple hasn't used 2x2 in any iPhone yet. So I suppose we could get the chip in the iPhone 6 but only limited to 1x1 MIMO.
     
  13. macrumors 6502a

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    #13
  14. macrumors 6502a

    PowerBook-G5

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    #14
    I had to fix that for you. I watched part of their so-called "keynote" and it all seemed really staged. Just the way that they were talking and commenting on the devices seemed totally premeditated (even though these things are, but they sounded like they were reading from a script)

    iPhone 6S feature perhaps?
     
  15. macrumors 68020

    jlake02

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    #15
    Seems cool.. not sure how USEFUL it'd be in every day real life, though....


    :apple:
     
  16. macrumors 603

    Carlanga

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    #16
    faster, better, less battery, no interference… isn't that what we want for every day real life?
     
  17. macrumors 6502a

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    in my Tesla Model S
  18. macrumors regular

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    #18
    This won't be in the iPhone 6, but the phone will have wireless AC.
     
  19. macrumors 603

    troop231

    Joined:
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    #19
    Hopefully not wireless alternating current :eek: I know what you mean though. :) Although doesn't wireless/inductive charging use an alternating current? ;)
     
  20. macrumors 6502a

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    #20
    + Faster Sync times with your MacBook Pro with wifi ac #

    ++ faster read times from your NAS
     
  21. macrumors regular

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    #21
    MIMO requires multiple antennas, so it's hard to say how Apple wants to handle that.
     
  22. Editor

    jclo

    Staff Member

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    #22

    It's the general term Broadcom's used, but I certainly see your point when applied to mobile. I've taken it out, appreciate the advice :)
     
  23. macrumors regular

    Joined:
    Feb 10, 2010
    #23
    So...is Comcast going to push out entry level plans that support these speeds?

    lol. I think I'll have decomposed in my grave before they hit 300mbps
     
  24. macrumors 68000

    Parasprite

    Joined:
    Mar 5, 2013
    #24
    Even though this is for wifi, I can't help but agree.

    ;)

    ----------

    They apparently have up to 505 Mbps in some areas.

    Though, it definitely seems like other providers are taking more initiative there.
     
  25. macrumors regular

    Joined:
    Jun 25, 2014
    #25
    ive never really understood the airport extreme. does it only help spread the current signal you have? like boost the range? or does it actually enhance it as in more speed/bandwith?
     

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