HSPA+ and DC-HSDPA on iPhone 5. 3G speed boost?

Discussion in 'iPhone' started by MyRomeo, Sep 14, 2012.

  1. MyRomeo
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    macrumors 6502

    MyRomeo

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    #1
    Hey,

    So with all the hype of the iPhone 5 getting lte 4g capability and my network provider not supporting it just yet I thought I'd see just what exactly the 5 can do that my 4 or even the newer 4s can't.

    So a little digging in the tech spec pages of the apple website and I notice two new 3G protocols have been added, both with significant speed boosts over those supported by the 4 and 4S.

    The iphone 5 brings HSPA+ and DC-HSDPA to the table, both of which are supported by my provider an with speeds claimed to be up to 40mb! If this is true then who needs 4g!

    So with these additions can anyone tell me what 3G speed benefits the 5 is likely to bring? It could be some time before I'm able to enjoy lte type speeds!

    Ps, pre ordered 32gb white iP5 straight after they hit the store, delivery for release day :)
     
  2. MattMJB0188
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    macrumors 68000

    MattMJB0188

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    #2

    What I want to know is if the 5 supports 14.4 HSPA+ or 21 HSPA+ ?
     
  3. MyRomeo
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    MyRomeo

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  4. Intell
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    Intell

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    #4
    The iPhone 5 uses the following 3G technolongies, HSPA+ (21.1Mbps), HSPA-DC, and LTE. It does not support any 4G technology such as WiMax, HSPA+ (>100Mbps), or LTE-A.
     
  5. mactmaster
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    macrumors 6502

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  6. MyRomeo
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    thread starter macrumors 6502

    MyRomeo

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    #6
    Sweet.
    This should mean users of the O2 uk network (and possibly others) can benefit from the dc-hsdpa speeds in cities and the hspa+ speeds elsewhere.

    For comparison, dc-hsdpa 3G at up to 42mb... EE launching the uks first 4g LTE network at up to 21mbps... Things could get interesting and I sure am looking forward to the 5 arriving next week!
     
  7. Pracht
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  8. netnothing
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    netnothing

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    #8
    4S only goes to 14.4.

    -Kevin
     
  9. Intell
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    macrumors P6

    Intell

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    #9
    Yes, at speeds of 14.4Mbps. 14.4Mbps is the slowest version of HSPA+. The iPhone 4 and 3Gs have a downlink speed of 7.2Mbps.
     
  10. tiiim
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    macrumors regular

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    #10
    DC-HSDPA should keep us going until LTE rolls out more.
     
  11. MyRomeo
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    thread starter macrumors 6502

    MyRomeo

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    #11
    You sure the 4s is hspa+? No mention of it on the apple tech spec site, just hsdpa and hsupa
     
  12. Ryhian
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    macrumors member

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    #12
    Yep, as previous poster mention the 4S is hspa+ 14.4. When I called AT&T to try and get money off last year when it came out they kept mentioning that when I said I was going to jump ship to another carrier.
     
  13. Intell
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    macrumors P6

    Intell

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    #13
    Very sure. It was one of their slides in the 4S keynote and AT&T trumpets the fact often as well.
     
  14. netnothing
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    netnothing

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    #14
  15. shortcrust
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    macrumors 6502

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    #15
    I find all this really confusing! I get around 4.5Mbps on O2 UK with my 3GS. Will I likely get faster speeds with the iPhone 5?
     
  16. bp1000, Sep 14, 2012
    Last edited: Sep 14, 2012

    bp1000
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    macrumors 65816

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    #16
    I doubt it

    I've been geeky enough to run speed tests at various locations and ive never gone faster than 7Mbit on my iPhone 4s.

    Includes, London, Birmingham, Manchester etc
     
  17. austinguy23
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    macrumors 6502a

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  18. terraphantm
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    macrumors 68040

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    #18
    AT&T's network doesn't even come close to saturating my 4S's capabilities. I doubt DC-HSDPA will make a practical difference for US users. Should be nice for Europeans who don't have access to LTE yet though.
     
  19. netnothing
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    netnothing

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    #19
    Correct. They do HSPA+ 21 were possible.....so in theory people could see higher speeds on their "4G" network....since the 4S is limited to 14.4....I'm guessing.

    -Kevin
     
  20. biosci
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    macrumors 6502a

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    #20
    Is DC HSDPB only available in Europe? What markets have the faster HSPA+ up to 21?
     
  21. netnothing
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    netnothing

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    #21
    I don't think anyone in the US uses DC-HSDPA.

    As for HSPA+ 21.....I don't think AT&T specifies, but I believe in general when they upgrade a market, they are doing HSPA+ 21.....whereas I think T-Mobile is doing HSPA+ 42.

    That's why I'm saying for those AT&T iPhone customers, the chip will now support the higher HSPA+ 21 speeds so even if you don't get LTE....you "may" still get faster 3G (or 4G) speeds.

    -Kevin
     
  22. biosci
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    macrumors 6502a

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    #22
    Thanks for clarifying! BTW, is it just me or is it totally ridiculous that ATT calls 3G 4G???


     
  23. Intell
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    macrumors P6

    Intell

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    #23
    AT&T's claim is more realistic than others'. LTE is still a 3G technology with 3G speeds, where as HSPA+ can reach 4G speeds.
     
  24. i-John
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    i-John

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    #24
    HSPA+ 21 and up, under the technical specifications is 4G.
     
  25. Nermal
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    Nermal

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