- That is not correct. 2G signals are limited to 35Km strictly due to timing issues. 2G is a TDMA technology. You need to be close to the tower to get your time slot.
Don't fall into the fallacy that lower frequency means longer distance. For line of sight communications, VHF on up the propagation is frequently independent.
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Is that while on an LTE call or just WFC? We're trying to find someone with IMS lit up while on an LTE call to show that VoLTE is working. IMS will show as connected for anyone on WFC. That's normal.
[CB10 / Q10]12-03-14 05:30 AMLike 0 - But, we aren't talking about UHF/VHF or AM/FM here. Cellular is a different animal altogether. Generally speaking, it's the frequency that most determines signal distance, not the generation of technology. LTE at 1900MHz doesn't go any farther than 2G at the same frequency in the real world. If it does then I'd be very interested to see a definitive test performed and the actual results outside of any theoretical explanations. In other words... show me, don't tell me.
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Is that while on an LTE call or just WFC? We're trying to find someone with IMS lit up while on an LTE call to show that VoLTE is working. IMS will show as connected for anyone on WFC. That's normal.
[CB10 / Q10]
The VHF on up comment is relevant since you need to get high enough in frequency where there are not atmospheric effects.
I gather you didn't bother to research my 35km limit on 2g else you wouldn't be arguing your point any further. What I speak of is well known. Just do a little research. "Timing advance" issues are real life. I have been in many rural areas where the tower can be "heard" but not used due to distance.
Australia has a different 2g standard to allow greater distance, but I never saw it used in the states.
Further, if you do some research, you will find the antenna "aperture" is what gives lower frequencies a theoretical lower loss advantage, but aperture doesn't come into effect in the handset. At the cell site itself, you can use a multiple element design to increase the antenna aperture for higher frequencies. In an omnidirectional antenna, that would be done with a colinear design. For directional antennas, the panel has more elements in it.
Posted via CB1012-03-14 12:25 PMLike 0 -
Don't tell me. Show me.
[CB10 / Q10]12-03-14 01:26 PMLike 0 - Right. And then when you tap IMS Status, the first line will show IMS Status as 'Connected' when your WFC is on. The second line will show IMS Services, locked in to 'On' which stays that way regardless of whether WFC is active or not. It was suggested earlier in this thread that if toggle is unlocked, i.e. you can turn IMS Services on or off, that indicates voLTE. However that doesn't seem to be right.12-03-14 01:30 PMLike 0
- Show me a scientific study with physical proof that a 1900MHz cellular signal travels farther when broadcasting LTE versus 2G. I don't care about textbook radio theory. Show me proof that LTE travels farther on the same frequency and a cellular handset's range is increased as a result. That's what I want to see.
Don't tell me. Show me.
[CB10 / Q10]
Everything I have posted is quite accurate. Note I have a MSEE and am an active ham radio operator.
Posted via CB10lift likes this.12-03-14 02:31 PMLike 1 - Ahh, you're correct. I missed that completely.
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Have a nice day. I'm not here to help people who can't help themselves. But don't post your inaccurate information on the internet. There is simply too much crud on the web.
Everything I have posted is quite accurate. Note I have a MSEE and am an active ham radio operator.
If your claims are accurate and you have an MSEE then surely someone you know has performed such a test and can show the work on paper. I have yet to find an increase in real-world range with LTE so your claims are of interest to me and many of my colleagues.
[Q10 / CB10]12-03-14 02:56 PMLike 0 -
According to Tmo's site, no BBerry is supposed to be able to get VoLTE.Last edited by scrannel; 12-03-14 at 08:48 PM.
12-03-14 07:22 PMLike 0 -
VoLTE is in the OS so Tmo is blowing smoke since they no longer carry BB devices.
[CB10 / Q10]12-04-14 05:24 PMLike 0 -
Or did they just leave BBs off of a voLTE phones list?12-04-14 05:28 PMLike 0 - Ahh, you're correct. I missed that completely.
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Don't be offended. I'm making an honest request here. You claimed that LTE can travel further through the air and I honestly want to see the tests to confirm your claims. Heck, even a test between 1700MHz HSPA+ versus 1700MHz LTE would be great to see since we have both in the US.
If your claims are accurate and you have an MSEE then surely someone you know has performed such a test and can show the work on paper. I have yet to find an increase in real-world range with LTE so your claims are of interest to me and many of my colleagues.
[Q10 / CB10]
The simple 2g network had few variations. In the US, they all had the 35KM timing. 3g on up are variants of CDMA. There is much more flexibility.
Even with a degree in electrical engineering, with my MSEE concentrated in communications, I would have to acquire the 3GPP documents and spend at least a week to get the details regarding range limitations. This presumes I'm will to pay for the standards, which I'm not. Next time I'm at Terman, I will see if they have them in the reference section.
The name of the game in cellular is channel reuse. It is unlikely any of the urban towers are set up for 100km LTE. They rather have you switch to a new tower in an urban areas in order not to bog down the data throughput.
If you really want to pursue the limits of LTE, contact Wue in Lincoln County Nevada. They have a rural LTE network, though it is a Verizon partner.
I found a Wue coverage map. I'm assuming the top circle is a wide coverage tower. You can probably do some leg work and figure out the distance.
http://www.cellularmaps.com/wue_map.shtml
Posted via CB1012-04-14 06:59 PMLike 0 -
The best way to figure this out would be to make a call. If your screen says 4G LTE before the call, see if stays at that when you initiate the call. If it drops to 3G or CDMA or whatever, then you don't have voLTE.
Of course, this would be worthwhile if you're in a confirmed Verizon voLTE test market. If not, the test is pretty much inconclusive.
Also, can you change the position of those sliders?12-04-14 07:38 PMLike 0 -
https://support.t-mobile.com/communi...over-lte-volte
https://support.t-mobile.com/docs/DOC-9907raino likes this.12-04-14 07:39 PMLike 1 - That's interesting. Isn't Verizon in the midst of rolling out their own voLTE?
The best way to figure this out would be to make a call. If your screen says 4G LTE before the call, see if stays at that when you initiate the call. If it drops to 3G or CDMA or whatever, then you don't have voLTE.
Of course, this would be worthwhile if you're in a confirmed Verizon voLTE test market. If not, the test is pretty much inconclusive.
Also, can you change the position of those sliders?
To try your test, would the person I'm calling also need to be on VoLTE?
Edit: Okay, tried it and it remained as "4GLTE" throughout the call.
Posted via CB10raino likes this.12-04-14 07:45 PMLike 1 -
Dan Seifert of The Verge (Verge URL) was probably the first one to report NYC as a test market. He wasn't specific enough about where in NYC he tested it, plus it sounds like he was given a test unit, rather than him latching on to an open network. Maybe that's changed now--maybe anyone can make use of the service.12-04-14 08:06 PMLike 0 - Did you call someone in a confirmed voLTE market? If Verizon provides an online call log, is there any confirmation of a voLTE call? (just trying to cross the Ts and dot the Is...)
If everything checks out, you, sir, may be the first regular person to have made a voLTE call with a BB10 phone12-04-14 09:20 PMLike 0 - Called my wife sitting next to me. I'll try again and see if I can browse the Internet while in a call. Isn't that a clue?
She is on an LG G3, which is one of the first few phones Verizon enabled for VoLTE.
Edit: Well, with WiFi off, I am definitely able to browse the Internet while in a call with my wife. Didn't think that worked over CDMA.
Posted via CB1012-04-14 09:36 PMLike 0 - Called my wife sitting next to me. I'll try again and see if I can browse the Internet while in a call. Isn't that a clue?
She is on an LG G3, which is one of the first few phones Verizon enabled for VoLTE.
Edit: Well, with WiFi off, I am definitely able to browse the Internet while in a call with my wife. Didn't think that worked over CDMA.
But if you can call and surf on LTE, yes that would absolutely confirm voLTE. You could also turn that slider under IMS Setting off, but I wouldn't recommend it.
How was the call quality?12-04-14 10:14 PMLike 0 -
- Please keep us updated. Or maybe start a new thread in the Verizon and/or BB10 forum? Also, if you have a Z10 or Q10, please test those, if you can.12-04-14 10:47 PMLike 0
- Here is a screenshot of a Samsung phone with TMO voLTE: Screen Shot 2014-06-02 at 21.09.12 � TmoNews
HD voice, unlike voLTE, requires both parties to be in HD calling markets.12-05-14 02:21 PMLike 0
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