Thomas L.

I would assume they keep sims internal because the phones you will be buying from sprint won't support any other LTE band classes therefore you can't use them on any other networks anyways so there's no point in having them removable. And it's also likely that they're doing this to keep users from moving sim cards from their phone to their tablet/data card assuming they buy/find one that supports sprints LTE band classes and using tons and tons of data. This could also be being done to cut costs on wasted customer support resources dealing with idiots who think they can just move LTE RUIMs from one device to another and have working CDMA voice. (There may be a work around for that I think I remember verizon setting up some ridiculous system to auth cdma with LTE RUIM which ended up going down and causing a lot of problems for their network but i'm not too sure)

Right, I know that you can move a SIM card from any VZW LTE device to another, and it will move CDMA service as well. It's great, to be totally honest, I hope that Sprint gets there, SOON!

I will just about bet my bottom dollar that the next iPhone will be partly but not fully compatible with Sprint's Network Vision plans and/or Clearwire's TD-LTE overlay. Basically, it will lack something, be it CDMA1X 800 or LTE 800 or TD-LTE 2600. And I am okay with that, even silently hopeful for that, since it would give the rest of us a potential network refuge from the iHordes and the congestion that often comes in their wake.

 

AJ

What do you think it will be that it is missing? I am thinking it would be the LTE 800 - with China Mobile doing TD-LTE 2600 I would think they would want to include that.

I wasn't sure where to post this, but since it envolves LTE I thought here would be as good a place as any:

If I remember correctly, Clearwire and China Mobile signed some kind of memorandum of understanding re: deployment of TDD-LTE and the sharing of technology... is it pretty safe to say that that will lead to roaming between Clearwire and China Mobile's TDD-LTE network? What are the implications for device costs for Clearwire/Clearwire's wholesale customers? Would this be any motivation for Clearwire to eventually go beyond their current "hotspot carrier offload" strategy? Could

The other question is about European roaming - I know that the European digital dividend is in the 800mhz block, and I just again saw that, for example, some 800mhz spectrum was sold in Denmark for LTE deployment... is there any chance of Sprint phones, when they can support 800mhz LTE, would include the ability to work at all in European markets with 800mhz LTE, or will they really just be tuning it to that small amount of 800mhz spectrum that Sprint has? What about devices that work on Clearwire's 2600mhz spectrum also being able to roam onto the 2500mhz spectrum that so much of the world is deploying LTE in?

I've been dying of curiosity about these questions for awhile and I'd love any insight you guys could offer!

Thanks!

Tommy

Hey everyone!

I apparently failed to introduce myself even though I've posted a few times I am Tommy, from San Jose! I am a Sprint fan and even more than that I am a mobile technology fanatic, always curious about the specifics of deployments and about intercompatibility!

Tommy

So, is Flash on its way out? Is Adobe shooting itself in the foot or what? I don't get the rationale.

Nice! I have to say, I am somewhat impressed at the coverage area of the individual cells.

It is and has been the most dangerous job in America I believe for at least the last few years. If you think about all of the things those guys (and gals) have to do, and how often (think of all the towers just in your area), it's actually not as much of a surprise. The other thing I think people forget is that they're working with big honkin' pieces of equipment - I know I'm always blown away when I see the antennas, etc, up close because I'm used to seeing them way up on the tower where they somehow look much more manageable.

I'm sure this has been mentioned deep in a thread somewhere, but I really don't know where to start so I thought I'd ask directly. First off, I haven't posted much but am a long-time lurker, I've been kind of a closet mobile network technology geek for quite a while. My question is this: does LTE have any inherent technological advantages that make it a better choice over WiMax? I know there are advantages now because it's become the de facto standard for 4G around the world, so there are many more products being developed, but, all other things being equal, was one better than the other, did one technology have better signal propagation than the other (if both at the same frequency?)?

How robust is the signal propagation of LTE at 1900mhz compared to that of CDMA at 1900mhz?

Also, how different will LTE-TDD be from WiMax at 2500mhz in terms of signal propagation and throughput/consistency of service/hand-offs/etc?

Once again, sorry if this has all been answered before, but I appreciate any insight all of you experts can provide!

Thomas

You don't say...who would have thought there would be permitting issues in SFO market!

 

Sent from my C64 w/Epyx FastLoad Cartridge

LOL, I thought the same thing, especially in SF proper. EIRs and NIMBY neighborhood meetings galore put a real damper on my 4G satisfaction I have no doubt the same individuals call to complain about bad coverage too.

Me too. I really hope the wait for LTE in the Bay Area won't be as bad as it was for WiMax (still very limited). We're supposedly in round-one and there's not a single sign that it's coming.

I hope the wait isn't bad but mostly I hope the COVERAGE is better. WiMax is a disaster in the South Bay unfortunately, the coverage is so incredibly spotty it's depressing.

I was just going to open a similar thread that was a little bit more general - does LTE comport any increase or decrease in signal propagation vs. CDMA, WiMax and/or GSM/UMTS deployed on the same frequency?

Migrated from Original Forum. Originally Posted 16 January 2012

Since LTE is a GSM technology, Sprint will use sim chips in their LTE devices as well. However, LTE sim chips might not read and register with other carrier LTE devices since they operate on different frequencies and interoperability and roaming with LTE isn't really much of a reality at this point. And due to the fact that MEID locking to carriers still exists, swapping devices that utilize both CDMA & LTE probably won't function like we would want it to.

I asked Verizon specifically about whether I could switch the SIM card between Verizon devices and have it work. They said yes, including the voice/3G (CDMA and EV-DO Rev. A) service. The person checked to confirm that LTE and CDMA would transfer when moving it from one Verizon LTE phone to another.