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WiWavelength

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Everything posted by WiWavelength

  1. WiWavelength
    And John Legere may not know either. He may just be repeating a talking point. After all, I guarantee that many of us here know more nitty gritty details about the native Sprint network than Dan Hesse himself does. AJ
  2. WiWavelength
    Like "The Simpsons," S4GRU already did this discussion -- over a year ago. http://s4gru.com/index.php?/topic/1032-fcc-approves-lte-deployment-in-800mhz-smr-band/?p=20459 AJ
  3. WiWavelength
    All of those reduce throughput, which is the criterion most would use to define "performance." At sector and cell edge, there is no such thing as a free lunch. AJ
  4. WiWavelength
    If anyone is looking for non street/highway bound Sensorly tracks, I am surprised that no one has yet noticed this distinctive pattern... AJ
  5. WiWavelength
    That's what she said?! AJ
  6. WiWavelength
    It does not matter how you "tune" the network. With unity frequency reuse, you are always going to get worse sector and cell edge performance because of co channel interference or weak signal strength -- pick your poison. Now, CDMA1X avoids that problem to a great degree through soft/softer handoff; not to mention, the voice/data rates being pumped through CDMA1X are well below the Shannon bound. The same is definitely not true for WiMAX and LTE. AJ
  7. WiWavelength
    CDMA1X 800 is not going to be active and available everywhere overnight. Give it a few weeks to a few months. So, the temporary PRL is not likely the sticking point. AJ
  8. WiWavelength
    Yes, indeed, I did mean TDD. When typing out FDD and TDD a dozen times a day for free, I am bound to transpose them accidentally on occasion. As for 5 MHz TDD WiMAX carriers, I have found only one, and that was via my spectrum analyzer. It is interesting to know that many others exist. However, that could be highly market and spectrum dependent. Cutting back WiMAX carriers to 5 MHz TDD and refarming for TD-LTE may not be necessary. If a market already has any 20 MHz TDD contiguous blocks of spectrum available, then Clearwire is already set for now. Conversely, because of the potentially fragmented nature of leased EBS spectrum, cutting back to WiMAX 5 MHz TDD carriers may accomplish nothing in the way of freeing up contiguous spectrum. AJ
  9. WiWavelength
    Until I see visual proof, I am not buying that VZW is already replacing standalone band 13 Lower 700 MHz panels after only two years of service. VZ shareholders would go apeshit over that CAPEX. Instead, I expect VZW to string along upgrades as long as its market share dominance allows. That helps prop up the quarterly results. AJ
  10. WiWavelength
    To cut right to the "chase," some Sensorly mappers are more thorough than others... http://www.youtube.com/watch?v=Ve46w_pL8dY AJ
  11. WiWavelength
    You should not try to "penetrate" buildings. They definitely are not "loose." AJ
  12. WiWavelength
    My notification screen today includes a system update. AJ
  13. WiWavelength
    Oh yeah! Cox is gettin' da hookup! AJ
  14. WiWavelength
    What is in the HTC One system update today? I have enough spectrum and network info to keep pace with that I hate having to worry about what system updates give or take away. AJ
  15. WiWavelength
    Cancelation of licenses and confiscation of spectrum amount to a whopping big fine. AJ
  16. WiWavelength
    Nope. BRS/EBS 2600 MHz is set up for TDD, not FDD. Simple as that. AJ
  17. WiWavelength
    Too many people seem not to realize that USCC has very limited market clusters scattered around the country. USCC has a large core in the Midwest, then smaller groupings in the Northeast, Southeast, and Northwest. And those clusters (now, minus Chicago and St. Louis) include very few major markets: Milwaukee, Tulsa, Omaha, Knoxville. Off the top of my head, those are USCC's only top 100 markets. If Dish is going to pursue a multiple play option for its mobile spectrum, then Ergen would prefer to acquire or piggyback on an existing network that is already in many/most major markets. AJ
  18. WiWavelength
    The PCS and AWS questions probably should be moved out of this thread. I will try to find a better existing spot for them. AJ
  19. WiWavelength
    Clearwire WiMAX is definitely using differently assigned carriers on adjacent sectors/sites. If all carriers are 10 MHz TDD, then that means at least 30 MHz utilization per site, and probably 90-120 MHz utilization per frequency reuse cluster. Now, if any of those carriers currently are or will be cut back to 5 MHz FDD, then the WiMAX spectrum utilization drops accordingly. The non unity frequency reuse could be due to regulatory or technical concerns. At least one poster here has called Clearwire "lazy" for doing so. But no one has stepped up with any legitimate evidence to support that assertion. Instead, by using non unity frequency reuse, WiMAX gets better sector and cell edge performance, since co channel interference becomes almost eradicated. AJ
  20. WiWavelength
    "Why would anyone want to limit the iPhone? We don't." Ah, but Sprint does limit it -- basically, keeping it off of CDMA1X 800. Tuff nutz, iPhoners. AJ
  21. WiWavelength
    Okay, guys, what makes you think that the FCC would allow Ergen to flip his bankrupt S-band satellite spectrum converted to AWS-4 terrestrial spectrum to AT&T or VZW for a nice profit? The FCC basically gave LightSquared and Dish special treatment as a means of increasing wholesale access and/or competition in the mobile industry. Allowing the duopoly to grab AWS-4 would have just the opposite effect. So, I would not be the least bit surprised to see the FCC stick it to Ergen: "Charlie, you are the one who wanted terrestrial mobile spectrum. Well, we let you have it. Now, you actually have to do something with it, not just sell it." So, you disagree with me? You had better be able to justify your reasoning... AJ
  22. WiWavelength
    One other possibility to consider is that you are on T-Mobile prepaid. T-Mobile is giving postpaid accounts with larger data allotments higher network priority. So, in essence, there is some network management taking place based upon how much you pay for data access. AJ
  23. WiWavelength
    AT&T's remaining AWS is a pittance compared to 40 MHz of AWS-4 A/B block spectrum completely nationwide. AT&T would lose very little and gain everything. Thus, that bargain might not gain much traction with regulators. It would be like Peter Minuit getting the island of Manhattan from Native Americans for $26 and a bottle of booze. AJ
  24. WiWavelength
    Some think that AT&T would not be allowed to gobble up yet another spectrum band, as it has largely done so with band 12 Lower 700 MHz and WCS 2300 MHz lately. So, AT&T might not be in the running. AJ
  25. WiWavelength
    Clearwire may have tested a number of different TD-LTE configurations for downlink:uplink symbol ratio and MIMO complexity. But if we take the 3:2 ratio and 2x2 MIMO that will be in common use, then there is no way to hit 100 Mbps over a 20 MHz TDD carrier. As for BRS/EBS spectrum, WiMAX has been occupying typically 90-120 MHz per market. So, until some/all spectrum for WiMAX is refarmed, Clearwire should have enough available and contiguous BRS/EBS for only one or two TD-LTE carriers per market. Lastly, just to be clear, LTE Advanced carrier aggregation will not allow Sprint to aggregate its LTE carriers with Clearwire's TD-LTE carriers. Only LTE to LTE and TD-LTE to TD-LTE carrier aggregation (but not a mix) will be possible. AJ
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