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Sprint Corporation Message Board

  • bjspokanimal bjspokanimal Oct 18, 2011 1:46 PM Flag

    Sprint's "vanilla" LTE is the same as Verizon's...

    ... which is the legacy version of what MetroPCS began running over 2 years ago. It multiplexes by frequency (FD-LTE) rather than the emerging, global standard adopted by Clearwire, China Mobile and others, which is the new version of LTE, called LTE-Advanced, which is optimized with the sufficient spectrum Clearwire owns via time-division multiplexing (eg: TD-LTE).

    In live, test networks, Clearwire attained downlink speeds in excess of 90 megabits in Phoenix and, in conjunction with Ericsson's swedish test network, well over 100 megabits... or roughly 10 times the speeds that Verizon currently averages on 10x10 (20 mhz total) paired channels.

    Not only will Sprint use the older, slower version of LTE that Verizon uses, sprint only has 10mhz a 5-by-5 paired channel) of spectrum available for it until nextel bands begin to free up in 2 to 3 years so once sprint starts launching LTE, it could very well be SLOWER than the WiMax they currently run on Clearwire's non-LTE bands.

    Even more to the point of Dan Hesse's stupidity regarding Clearwire, Clearwire has sufficient spectrum to run DUAL, 40 mhz channels with LTE-Advanced (eg: 2, 20x20 channels) which essentially eliminates any chance of overloading on the network and assures unlimited data plans for subscribers almost indefinately.

    Sprint already has $billions invested in Clearwire's state-of-the-art, 2010-vintage infrastructure and only $600 million more would launch LTE-Advanced to 135 million POPs much sooner than network vision could accomodate Hesse's "vanilla" LTE service...

    ... but instead, Dan Hesse's going to spend ANOTHER $3 billion to replicate Clearwire's infrastructure with a vastly inferior LTE solution.

    They need to replace this Hesse Character and they need to do it now while Sprint still has some viability left.

    S

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    • OK, common misconceptions here. TD-LTE is not LTE-Advanced. LTE-Advanced (aka "Release 10") includes both TD-LTE and FDD LTE, as did Releases 9 and 8.

      There's a lot of buzz on here saying that TD-LTE must be better because China Mobile and Sprint are using it. The fact is that unless an operator has paired bands, TD-LTE is the only choice. FDD uses different frequencies for uplink and downlink. TD-LTE uses one spectral band, but does that by letting the uplink and downlink traffic "take turns".

      I keep asking because S has never said they'd deploy anything but LTE-Advanced. It would make no sense based on their time frame. In fact, by the time they do it's a pretty sure bet that both Verizon and AT&T will be deploying LTE-Advanced.

 
S
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