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MacinJosh

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Posts posted by MacinJosh

  1. I can't imagine Sprint will drop CDMA until Verizon dropping it forces their hand (e.g. Sprint won't have anywhere for CDMA customers to roam, and there won't be the economies of scale for the manufacturers that Big Red's CDMA provides), which probably won't happen for years; a couple of slivers of 1X at 1900 and ESMR can handle all the voice traffic Sprint carries. Going all-VoLTE is going to require a national infrastructure for native and roaming coverage that just won't be ready before 2020.

     

    Remember, AMPS (aka analog cellular) was still around until 2008, largely because it took that long for the Cellular A & B block holders (largely Verizon and AT&T, but also some of the regional players too like C Spire) to build out digital GSM and CDMA to have as big a footprint. That's despite the fact that AMPS-native phones were already on the way out in the late 1990s.

     

    That said when CDMA dies it will be with a whimper... by 2020, voice traffic will be so little of what the network carries bandwidth-wise that even if theoretically CDMA can carry it more efficiently than VoLTE, in practice maintaining the infrastructure and setting aside a whole band for it won't be worth the cost.

     

    I can't see Sprint rolling out any GSM unless they see some opportunity to make money from roaming. Presumably NV makes that more feasible than in the past, but in most of the US there's better native GSM coverage from the Cellular A/B holders than anything Sprint could deploy anyway.

     

    No national carrier has truly ever completed replacing AMPS in all areas of their network like they should have. AT&T Wireless had AMPS & TDMA coverage on CA127 on the road from Baker, CA to Shoshone, CA. After AMPS was shuttered, they never lit up GSM to fully replace that coverage area. They only covered what they thought would be the areas that would bring them profit. Sad too how they pulled that one off.

     

    If Sprint ever decided to go the GSM route, at least there is already nationwide GSM deployment, but even then, LTE will fully cover this country before that would ever feasibly happen.

  2. Has anyone ever noticed that rain seems to degrade WiMax signals to almost worthless usability? Could this also potentially affect LTE as well?

  3. I for one loved the virtual full keyboard and then someone on xda said a company makes that part already available for consumers now...forget the name though...

     

    Sent from my PG86100 using Tapatalk

     

    That would be so awesome to have! I love the idea for the virtual keyboard. My question is: Is it accurate and how does it sense what keys you mean to touch?

  4. There is a third option. 6-sector towers (like Verizon uses in a few spots). Basically it is two BSCs on a single tower with one rack skewed 60° from the other. They can be used with CDMA networks and each sector is now a 60° window (6 sectors make the whole circumference of coverage). This gives you double the capacity of that cell. The only trick is to make sure you don't add too much to carrier pollution-- so you keep your downtilt to limit the coverage distance from the tower to reduce the carrier pollution with neighboring cells.

     

    http://en.wikipedia....ite_in_CDMA.jpg

     

    Interesting method. Maybe Sprint will use it in some areas.

  5. I'm not sure I understand your question. However, if a site becomes capacity constrained, they can keep adding additional carriers with the licensed spectrum they have, until they run out.

     

    Once they run out of spectrum, they have two choices...1) buy or share spectrum with someone, or 2) add more sites and reduce the size of cells in affected areas.

     

    Robert - Posted from my E4GT with ICS using Forum Runner

     

    Let's hope they use number 2 for where I live, because vegetation will impact the signal for my phone service on a constant basis.

  6. I don't think so. They definitely need to keep the design around until they get another world phone. I'm almost positive the GNex and Viper will not have world roaming capability, and with the Photon already seeing EOL looming, I think they saw the writing on the wall. That is probably why the Evo Design was released in December and at a midrange price point. Sooner or later (probably when the LTE phones are released), it will start going on sale for even less than the $100 regular price. Or they could put a couple other different phones in the free category and keep the world phone as a midrange.

     

    They could always do that. I would like to see more world phones on Sprint in the future. And then hope that someone figures out how to unlock US GSM roaming and native use for at&t & T-Mobile.

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