Jump to content

T-Mobile LTE & Network Discussion


CriticalityEvent

Recommended Posts

bigsnake, I always thought the SMR block would be a stumbling block for a Sprint/T-Mobile merger, but now that Scalable UMTS has entered the building...

 

http://3g4g.blogspot...ember_214087984

 

I thoroughly believe that this could be a big aid to a combined Sprint/Softbank/T-Mobile.

 

Yes because otherwise T-Mobile voice customers would not benefit from lower frequency spectrum.

Link to comment
Share on other sites

bigsnake, I always thought the SMR block would be a stumbling block for a Sprint/T-Mobile merger, but now that Scalable UMTS has entered the building...

 

http://3g4g.blogspot...ember_214087984

 

I thoroughly believe that this could be a big aid to a combined Sprint/Softbank/T-Mobile.

 

Please elaborate. I do not follow how SMR 800 MHz spectrum could be an impediment to a Sprint-T-Mobile merger, nor how S-UMTS would be relevant.

 

Besides, we will not see S-UMTS here. It is for developing countries, where operators and/or subs cannot afford to go LTE.

 

AJ

Link to comment
Share on other sites

Yes because otherwise T-Mobile voice customers would not benefit from lower frequency spectrum.

 

With the turnover rate of devices, it wouldn't take that long to migrate the customer base to 800mhz capable handsets.

Link to comment
Share on other sites

AJ, I'm going through and doing the research on this throughly... but as far as the interim findings go, I'm very excited. It's still not a set standard and something we won't see until 2015... but we probably wouldn't see a merger close until then anyway.

Link to comment
Share on other sites

AJ, I'm going through and doing the research on this throughly... but as far as the interim findings go, I'm very excited. It's still not a set standard and something we won't see until 2015... but we probably wouldn't see a merger close until then anyway.

 

So, just for me to speculate, you think that if Sprint were to acquire T-Mobile, then the combined entity might deploy W-CDMA/2 or W-CDMA/4 (by the way, I am coining that terminology right here and now) in SMR 800 MHz to accommodate T-Mobile subs?

 

AJ

Link to comment
Share on other sites

Please elaborate. I do not follow how SMR 800 MHz spectrum could be an impediment to a Sprint-T-Mobile merger, nor how S-UMTS would be relevant.

 

Besides, we will not see S-UMTS here. It is for developing countries, where operators and/or subs cannot afford to go LTE.

 

AJ

 

Well, if the two merge, then only the Sprint customers will get the benefit of voice on 800MHz SMR, absent a fractional UMTS. With a fractional UMTS both Sprint and T-Mobile customers can get the benefit of voice on SMR. Of course, that would mean that spectrum for LTE on SMR will shrink by a commensurate amount.

Of course the other solution would be to just put 1x + UMTS on SMR and no LTE. You might still need fractional UMTS in Solinc areas.

Edited by bigsnake49
Link to comment
Share on other sites

I'm trying to think along the lines of what SoftBank would do. They're definitely on the 3GPP train. I just don't think they care all that much about CDMA. Sure, they could support it for customers for a long time. I think that if they buy T-Mobile, it would be an opportunity on their end to switch technologies and more or less move off 3GPP2 altogether.

 

Now if they don't buy T-Mobile, it obviously makes sense to keep CDMA around.

 

Yet, I still don't have a conclusion. I may want to wait for the SoftBank/Sprint transaction to close, I want to see what they do for starters upon taking control of Sprint.

 

 

Sent from my iPhone using Tapatalk 2

  • Like 1
Link to comment
Share on other sites

Well, if the two merge, then only the Sprint customers will get the benefit of voice on 800MHz SMR, absent a fractional UMTS. With a fractional UMTS both Sprint and T-Mobile customers can get the benefit of voice on SMR. Of course, that would mean that spectrum for LTE on SMR will shrink by a commensurate amount.

Of course the othe solution would be to just put 1x + UMTS on SMR and no LTE. You might still need fractional UMTS in Solinc areas.

 

Yeah, I got that, but honestly, it does not make sense to me that you guys could possibly be thinking that.

 

One, T-Mobile is basically becoming a sub prime, non contract brand, so who cares if those subs were to have access to SMR 800 MHz? Those subs should get what they pay for and stay on ~2 GHz spectrum.

 

Two, if Sprint were to acquire T-Mobile, then existing T-Mobile subs would require new devices to use SMR 800 MHz in any way, shape, or form, regardless. So, why in the world would Sprint-T-Mobile go the trouble of procuring S-UMTS 800 devices when it could just focus on CDMA1X/EV-DO and GSM/W-CDMA devices with LTE 800 capability?

 

Seriously, guys, come on...

 

AJ

  • Like 2
Link to comment
Share on other sites

What work would need to be done to get Network Vision towers to blast out PCS HSPA and AWS HSPA/LTE?

 

A lot. I wouldn't worry about it since it won't happen.

Link to comment
Share on other sites

 

A lot. I wouldn't worry about it since it won't happen.

 

I'm speaking in terms of a merger or network sharing agreement with T-Mobile.

 

 

Sent from my iPhone using Tapatalk 2

Link to comment
Share on other sites

I'm speaking in terms of a merger or network sharing agreement with T-Mobile.

 

 

Sent from my iPhone using Tapatalk 2

 

Definitely additional antenna panels that support AWS frequencies, carrier cards for PCS HSPA and AWS LTE/HSPA at the BTS, new RRUs that support HSPA and LTE on AWS and PCS. I am sure I am missing some other small details.

Link to comment
Share on other sites

 

Definitely additional antenna panels that support AWS frequencies, carrier cards for PCS HSPA and AWS LTE/HSPA at the BTS, new RRUs that support HSPA and LTE on AWS and PCS. I am sure I am missing some other small details.

 

That was pretty close to what I thought.

 

That's another reason why I didn't want to say too much. I feel like I still have a lot to learn about the Network Vision itself.

 

 

Sent from my iPhone using Tapatalk 2

Link to comment
Share on other sites

Yeah, I got that, but honestly, it does not make sense to me that you guys could possibly be thinking that.

 

One, T-Mobile is basically becoming a sub prime, non contract brand, so who cares if those subs were to have access to SMR 800 MHz? Those subs should get what they pay for and stay on ~2 GHz spectrum.

 

Two, if Sprint were to acquire T-Mobile, then existing T-Mobile subs would require new devices to use SMR 800 MHz in any way, shape, or form, regardless. So, why in the world would Sprint-T-Mobile go the trouble of procuring S-UMTS 800 devices when it could just focus on CDMA1X/EV-DO and GSM/W-CDMA devices with LTE 800 capability?

 

Seriously, guys, come on...

 

AJ

 

I am sure that T-Mobile denizens would not like your characterization of them as a sub-prime brand.

 

I'm pretty sure that a single channel of 1x would not be enough to accommodate both Sprint and T-Mobile subscribers. Maybe the capacity/coverage tradeoffs of 1x Advanced would help in this instance (lower rate codec, for example).

Link to comment
Share on other sites

I am sure that T-Mobile denizens would not like your characterization of them as a sub-prime brand.

 

They would have to take that up with their carrier because that is how T-Mobile is increasingly positioning itself. I am remarking only on what I am observing from T-Mobile.

 

I'm pretty sure that a single channel of 1x would not be enough to accommodate both Sprint and T-Mobile subscribers. Maybe the capacity/coverage tradeoffs of 1x Advanced would help in this instance (lower rate codec, for example).

 

Which single CDMA1X channel are we talking about? CDMA1X 800? If so, there will still be plenty of CDMA1X 1900 channels to go around.

 

AJ

  • Like 1
Link to comment
Share on other sites

They would have to take that up with their carrier because that is how T-Mobile is increasingly positioning itself. I am remarking only on what I am observing from T-Mobile.

 

 

 

Which single CDMA1X channel are we talking about? CDMA1X 800? If so, there will still be plenty of CDMA1X 1900 channels to go around.

 

AJ

 

Yes, of course the single 1x 800Mhz channel.

Link to comment
Share on other sites

 

Yes, of course the single 1x 800Mhz channel.

 

Recall that its 1xAdvanced which can have up to 4 times the capacity of current 1x carriers.

 

Also, later PRL updates will push phones to 1900 carriers first and only connect to 800mhz 1x when 1900 signal is absent.

 

Sent from my SPH-L710 using Tapatalk 2

 

 

Link to comment
Share on other sites

Yes, of course the single 1x 800Mhz channel.

 

I fail to see the issue, though. It is not as if CDMA1X 1900 is being retired and all traffic will be carried over that single CDMA1X 800 carrier.

 

AJ

Link to comment
Share on other sites

Also, later PRL updates will push phones to 1900 carriers first and only connect to 800mhz 1x when 1900 signal is absent.

 

Do we know that later PRL updates will do this? My prognostication last year was that most/all PRLs would keep devices camped on CDMA1X 800 (where available). Empirical results from Chicago and Texas plus digiblur's PRL interpretations, thus far, have supported my speculation.

 

AJ

Link to comment
Share on other sites

T-Mobile isn't a subprime network in the 225 million POP's they cover with HSPA+. It's just subprime in the areas they still only have GPRS and EDGE.

 

 

Sent from my iPhone using Tapatalk 2

  • Like 1
Link to comment
Share on other sites

T-Mobile isn't a subprime network in the 225 million POP's they cover with HSPA+. It's just subprime in the areas they still only have GPRS and EDGE.

 

I am using "sub prime" in the financial sense, as in T-Mobile is increasingly setting itself up to attract urban, poor, credit challenged subs.

 

AJ

  • Like 1
Link to comment
Share on other sites

T-Mobile has been in that area for a while. Alarm bells should have been going off at DT HQ when ARPU started going into the toilet on their end. Perhaps it did and they thought that selling to AT&T would be the fix.

 

The Uncarrier branding is still postpaid. It's just not on contract per se. Now I would call the EIP a type of contract, and the credit requirements for that are, from my understanding, very tight. For a postpaid Uncarrier plan with no contract, not so much.

Link to comment
Share on other sites

The Uncarrier branding is still postpaid. It's just not on contract per se. Now I would call the EIP a type of contract, and the credit requirements for that are, from my understanding, very tight. For a postpaid Uncarrier plan with no contract, not so much.

 

From everything that I have seen, T-Mobile's "UNcarrier" strategy offers both postpaid and prepaid options on most/all plans.

 

AJ

Link to comment
Share on other sites

From everything that I have seen, T-Mobile's "UNcarrier" strategy offers both postpaid and prepaid options on most/all plans.

 

AJ

 

There are still specific prepaid options, but the major "UNcarrier" stuff is the dramatic simplification of the postpaid plan system. For the bulk of the time that DT's mobile brand has been operating in the USA, it has had a dizzying array of options to choose from. The result was very confused customers who didn't know what to get. Examples include Even More and Even More Plus, the Classic/Value split, and so on.

 

The hope is that the simplification will reduce administrative costs and boost revenue. Early indicators seem to bear fruit, but we'll wait and see.

Link to comment
Share on other sites

Guest
This topic is now closed to further replies.

  • large.unreadcontent.png.6ef00db54e758d06

  • gallery_1_23_9202.png

  • Similar Content

  • Posts

    • So, in summary, here are the options I tested: T-Mobile intl roaming - LTE on SoftBank, routes back to the US (~220ms to 4.2.2.4) IIJ physical SIM - LTE on NTT, local routing Airalo - LTE on SoftBank and KDDI (seems to prefer SoftBank), routed through Singapore (SingTel) Ubigi - 5G on NTT, routed through Singapore (Transatel) US Mobile East Asia roaming - 5G on SoftBank, routed through Singapore (Club SIM) Saily - 5G on NTT, routed through Hong Kong (Truphone)...seems to be poorer routing my1010 - LTE on SoftBank and KDDI (seems to prefer KDDI), routed through Taiwan (Chunghwa Telecom) I wouldn't buy up on the T-Mobile international roaming, but it's a solid fallback. If you have the US Mobile roaming eSIM that's a great option. Otherwise Ubigi, Airalo, or my1010 are all solid options, so get whatever's cheapest. I wouldn't bother trying to find a physical SIM from IIJ...the Japanese IP is nice but there's enough WiFi that you can get a Japanese IP enough for whatever you need, and eSIM flexibility is great (IIJ as eSIM but seems a bit more involved to get it to work).
    • So, the rural part of the journey still has cell service for nearly all the way, usually on B18/19/8 (depending on whether we're talking about KDDI/NTT/SoftBank). I think I saw a bit of B28 and even n28 early on in the trip, though that faded out after a bit. Once we got to where we were going though, KDDI had enough B41 to pull 150+ Mbps, while NTT and SoftBank had B1/B3 IIRC. Cell service was likewise generally fine from Kawaguchiko Station to Tokyo on the express bus to Shinjuku Station, though there were some cases where only low-band LTE was available and capacity seemed to struggle. I also figured out what I was seeing with SoftBank on 40 MHz vs. 100 MHz n77: the 40 MHz blocks are actually inside the n78 band class, but SoftBank advertises them as n77, probably to facilitate NR CA. My phone likely preferred the 40 MHz slices as they're *much* lower-frequency, ~3.4 GHz rather than ~3.9, though of course I did see the 100 MHz slice being used rather often. By contrast, when I got NR on NTT it was either n28 10x10 or, more often, 100 MHz n78. As usual, EMEA bands on my S24 don't CA, so any data speeds I saw were the result of either one LTE carrier or one LTE carrier plus one NR carrier...except for B41 LTE. KDDI seems to have more B41 bandwidth live at this point, so my1010 or Airalo works well for this, and honestly while SoftBank and NTT 5G (in descending order of availability) have 5G that's readily available it may be diminishing returns, particularly given that I still don't know how to, as someone not from Hong Kong, get an eSIM that runs on SoftBank 5G that isn't the USM "comes for free with the unlimited premium package" roaming eSIM (NTT is easy enough thanks to Ubigi). In other news, I was able to borrow someone's Rakuten eSIM and...got LTE with it. 40 Mbps down, 20 Mbps up, 40ms latency to Tokyo while in Tokyo...which isn't any worse than the Japan-based physical SIMs I had used earlier. But not getting n77 or n257 was disappointing, though I had to test the eSIM from one spot rather than bouncing around the city to find somewhere with better reception. It's currently impossible to get a SIM as a foreigner that runs on Rakuten, so that was the best I could do. Also, I know my phone doesn't have all the LTE and 5G bands needed to take full advantage of Japanese networks. My S24 is missing: B21 (1500 MHz) - NTT B11 (1500 MHz) - KDDI, SoftBank B42 (3500 MHz) - NTT, KDDI, SoftBank n79 (4900 MHz) - NTT Of the above, B42/n79 are available on the latest iPhones, though you lose n257, and I'm guessing you're not going to find B11/B21 on a phone sold outside Japan.
    • T-Mobile acquiring SoniqWave's 2.5 GHz spectrum  Another spectrum speculator down! T-Mobile is acquiring all of their BRS/EBS licenses and their leases. Details are lacking but it looks like T-Mobile might be giving them 3.45GHz in exchange in some of the markets where they're acquiring BRS/EBS to sweeten the deal and stay below the spectrum screen. Hopefully NextWave is at the negotiating table with T-Mobile so NYC can finally get access to the full BRS/EBS band as well.  — — — — — Edit: Turns out this is a spectrum swap where T-Mobile is basically giving them DoD spectrum in a bunch of markets in exchange for all of SoniqWave's BRS/EBS. SoniqWave will likely turn around and sell the DoD spectrum to AT&T whenever the FCC removes the 40MHz cap.
    • Maybe. The taller buildings on one side of the street all have Fios access and the NYCHA buildings are surrounded by Verizon macros that have mmWave. I don’t think this site will add much coverage. It’d be better off inside the complex itself.
  • Recently Browsing

    • No registered users viewing this page.
×
×
  • Create New...