Yes exactly.
But on the "correct" terminal of such a signal quality may not be enough even to switch it to 4x4 mode, not to mention the actual use of more than two streams.

And where is Tele2 so famously speaking? 15 MHz with 4x4 is a hint of serious business. :)

Post has been editedvvevvevve - 19.03.19, 15:53

In Chelyabinsk: D
During this winter, a mass switch began from TM3 to TM4 and from 2x2 to 4x4, 15 MHz for us a long time ago, I can’t check the modulation since 64QAM is the maximum of my phone

Post has been editedtyphoon13 - 19.03.19, 16:23

I remember, I saw a screen from a new bs on the Leningrad, but from which side, from the side of Svetly or Voykovsky? ...
The BS on Khoroshevskoe 76a p4 is also worth a close look.

What to watch? You want to say that Tele2 somewhere in Moscow has 4x4?

Dear, help find out the place where there is a BS: D
Today, apparently earned yesterday was not :)

Hello, dear experts, 4g tele2 appeared today launched 1800 at 20mhz, how much maximum can you get at this frequency? Can anyone have such a practice of testing ??

Wasek_androidz 400 in theory

ovly , this is if with 256QAM and 4x4, hardly tele2 is capable of it

Wasek_androidz Where is happiness in T2 with 20 MHz?

Krasnodar region

vvevvevve,
4x2 configuration - 4 streams for reception and 2 for transmission, or only 2 there and there, and 4 - as an opportunity to work, with the appropriate terminal?

Well, apparently yes, the BS can do 4x4, and the terminal uses only two)

Wasek_androidz , opana
need to check
In theory, on a conventional device with 64qam and 2x2 150 Mbit

In order not to be confused, it is better to pay attention to the name, “signature” for this value on the NSG screen - “Ant. ENB Tx / Dev. Rx”.
That is, 4x2 here "literally" means that at the BS, 4 antennas are currently used for transmitting this carrier, and 2 antennas are used for receiving it at the phone. All this information relates only to this direction of data transmission - the station transmits, the device receives, i.e. to the downlink.
The use of two or more streams on uplink has not yet been implemented in practice, and I have not heard of plans for such yet.

And the actual number of streams used for data transmission at the moment, NSG displays as a value of Rank. Naturally, also for downlink. For uplink, the number of threads is always 1, so there’s no point in displaying it.

In turn, the number of antennas that the terminal uses to receive the carrier is dynamically selected. Even if the terminal has 4x4 support for the selected range, the receive mode with 4 antennas is activated by a command from the station only when it can transmit data with more than 2 streams. the station does not support more than 2 streams at all, it is equipped with only 2 antennas. This situation is displayed in the NSG as "Ant. ENB Tx / Dev. Rx" = 2x4. In this case, two additional antennas are used in approximately the same mode as the second antenna in RX diversity mode in UMTS networks. Simultaneous reception of the same signal to two antennas, using appropriate mathematical processing, can theoretically improve its quality at the receiver input. In practice, however, the effect of such a decision is virtually invisible. The reason for this is the same, for which 4x4 on mobile terminals like a smartphone works inefficiently: the insufficient mutual distance between the antennas, determined by the dimensions of the case.

Posted 03/19/2019 20:45:


Well, in 2019, a phone without the support of 256QAM is no longer an “ordinary device”. It is, rather, a "cheap", "budget", "entry-level" apparatus ... or how is it used to call such devices?

Is there any effect from the 4x2 mode on the terminal that does not support 4x4? Or is there no difference compared to 2x2?

vvevvevve Well, I take into account the most popular devices in the category up to 24k
This is the Huawei, xiaomi, Samsung (Samsung can and support)

so here people write checked write that 150 gives, here ssylhttp: //forums.kuban.ru...ossii-5602109-214.html

Post has been editedWasek_androidz - 19.03.19, 21:24

Wasek_androidz The test was most likely on a freshly installed BS, in real life you will not see more than 50 Mbps

Yes, I have a principle for the sake of interest, I have not seen more than 30 at my very mts, but I have enough for my eyes right now

That would tele2 spread it to other regions: blush: