And who else can have adjacent lanes except for Megaphone? I think no one else. No such resources.
So you can say that intra-band aggregation can not be anyone, except Megaphone.
But in some regions, some operators may have adjacent lanes in B3. Still, the "full width" B3 is 75 MHz, and even if you divide it between the three operators equally, you get more than 20 MHz for each. And if initially there was a division into вЂњfourвЂќ - 3 federal operators and one regional, then after buying the latter, the federal one may well be about 40 MHz. "One piece" or in the form of non-adjacent strips - then how it will develop ...
In addition, no one forces Megaphone to use adjacent lanes. Yes, if they are 20 MHz wide each, then it will not work out differently. But if the bands are narrower, it can be different.
This question - is not as vacuous as it may seem at first glance. Different hardware supports different types (in this aspect) aggregation. In other words, "adjacent" aggregation - the most "simple", it supports most of the hardware Cat.6 and above (and even some Cat.4 device, taking into account of the total bandwidth limitations). And the most complicated case - it (inband) aggregation of non-contiguous bands of different widths. It does not support not only the majority of subscriber equipment, but also on some BS models.
I myself do not know how to distinguish
You do mention the NSG as a program to observe the whole thing. In it, and you can see it. Or in QXDM, for example. Yes, this all works only for equipment on the Kwalkcomm platforms. But if we are talking about the description of the parameters of the networks, then you can probably find the device on such a platform, even if there is no such thing at hand.
In Moscow, the inter-site "can" Megaphone during 3CA operation: carriers in B7 from one base, carriers in B3 on the other.
netmonitor in my samsung it doesn't show
This does not mean that such information is not needed or useless. In the end, we are all interested in data transfer speed. And this is the parameter that directly determines this speed. Again, if you do not have a Cat.11 or higher device on Qualcomm, then someone has one. And the "place" for the modulation scheme in the network description can be provided in any case.
In Moscow networks, I can say that MTS for carriers in B3, B7 and B38 now almost always supports 256QAM, I canвЂ™t say anything about a carrier in B20.
Megafon has 256QAM support not seen yet.