BUG in RUTX50, showing wrong network type?

fableman · January 21, 2024, 4:53pm

Hi, I have a feeling that the GUI of RUTX50 showing the wrong network type that the router is using.

The GUI tells me I am “Registered, home; Telia; 5G (NSA)”
I guess the GUI take that info from gmsctl -t that tell me: 5G-NSA

But in reality I only got LTE:

gsmctl -G # show that only CA 0 is registered the others are deactivated…

I guess this is because my ISP Telia have not activate 5G for this SIM card and then the GUI and functions of RUTX50 get tricked to show wrong type of network been used.?!

Is it me that is misunderstanding something here, or is this a BUG ?
This can cause a lot of confusion if not showing correct info.

iBoucher · January 21, 2024, 7:11pm

Hi, if you see 5G band under CA, then you definitely have 5G NSA active.

fableman · January 21, 2024, 7:42pm

And what about it saying: Cell st: deactivated

iBoucher · January 21, 2024, 7:57pm

Don’t know exactly what does it mean, sorry.

For double check you could run AT+QENG=“servingcell” - you should see 5G cell there also.

Btw, did you tried to run speedtests and see speed increase?

iBoucher · January 21, 2024, 7:59pm

Maybe it has deactivated state because it’s not needed at the moment (no data traffic etc.)

iBoucher · January 21, 2024, 8:03pm

Yes, seems that I was correct, you can find more here: SCell (secondary cell)

fableman · January 21, 2024, 8:28pm

I have not manage to get over 100Mbit with my RUTX50, My mobile easy goes into close 300Mbit on 5G.
I done speed tests, I disabled all LTE Bands and only allowed 5G, then the X50 fails to connect! And for me that is no 5G, and as soon I allow LTE bands again then I can connect.

For me its that I cant use 5G ut still the RUTX50 show I have 5G and thats is an error to me.

SCell Activation: SCells are not active all the time. They can be dynamically activated or deactivated based on network conditions and traffic demand. This dynamic activation allows for efficient utilization of network resources.

I think this have more to do with other things then my connection to the cell, If my phone got 5G then the Cell is up and running , still shows not activated in RUTX50 modem.

iBoucher · January 21, 2024, 8:41pm

You can’t use 5G only, because you are not on 5G SA, you have NSA which is based on 4G architecture, that’s why you can’t connect without 4G bands.

iBoucher · January 21, 2024, 8:43pm

And if your phone shows that it’s 5G, that really doesn’t mean that your all cells activated at that moment

iBoucher · January 21, 2024, 8:47pm

Look at this, my phone also reports that it’s 5G, but here is no 5G connected band, so your theory isn’t correct.

And when it gets 5G band, also shows 5G

fableman · January 21, 2024, 9:00pm

I tried to allow all 5G bands and I tested to allow just one LTE band at a time, still same results, no 5G connection

fableman · January 21, 2024, 9:03pm

My theory ?
It’s how that program decide to show connection states.
On my iphone I see 3G ,4G or 5G depending on what connection I have, and thats is logic to me.

fableman · January 21, 2024, 9:12pm

The problem is that RUTX50 see it have 5G possibility and it say it use 5G in the GUI. That is the BUG…

My SIM card can still prevent me from having 5G access… and then the GUI should not show 5G , then users will think they are connected at 5G.

5G should only show up in GUI when the cell is Activated, then you using 5G, that is logical to me.

Daumantas · January 22, 2024, 6:09am

Hello,

5G-NSA implementation works the same way on mobile phones and routers - if your device connects to a 5G cell, it will display 5G as active, but if no data will be flowing through it, it’s state will be disconnected. It works the same way on the iPhones. This is completely normal and expected behavior. The same mechanism is also used on LTE-Advanced, thus the aggregated cells are also deactivated.
5G and other LTE frequencies will automatically activate once any traffic is flowing. You can test this by running a speed test on your PC and observing the cell state via the CLI. Sometimes even pinging a host on the internet is enough to activate the aggregated cells. This mechanism helps reduce the power usage, and the additionals bands kick on as soon as there is additional traffic flow.

It is likely that the device does not connect to 5G-only because your network provider does not support standalone configuration yet. That means that your device uses 4G for authentication and other mobile service mechanisms, but 5G radios are used for data transfer. It will take some time for 5G standalone deployments to be more readily available, as it takes quite a bit of investment to complete a 5G core network.
Hope this clears up any confusion.

Best regards,

fableman · January 22, 2024, 8:57am

Thank you for a good explination

And this was how it looked like before,during and after a speed test.

root@RUTX50:/usr/fableman# gsmctl -G

CA 0

Primary: 1 | Frequency: 1300 | Bandwidth: 20 | Band: LTE_B3 | Cell st: registered

PCID: 494 | RSRP: -105 | RSRQ: -10 | RSSI: -76 | RSSNR: 16

CA 1

Primary: 0 | Frequency: 3150 | Bandwidth: 20 | Band: LTE_B7 | Cell st: deactivated

PCID: 494 | RSRP: -110 | RSRQ: -9 | RSSI: -91 | RSSNR: 11

CA 2

Primary: 0 | Frequency: 1471 | Bandwidth: 15 | Band: LTE_B3 | Cell st: deactivated

PCID: 494 | RSRP: -106 | RSRQ: -13 | RSSI: -83 | RSSNR: 14

CA 3

Primary: 0 | Frequency: 154570 | Bandwidth: 15 | Band: 5G_N28 | Cell st: deactivated

PCID: -1 | RSRP: -1 | RSRQ: -1 | RSSI: -1 | RSSNR: -1

root@RUTX50:/usr/fableman# gsmctl -G

CA 0

Primary: 1 | Frequency: 1300 | Bandwidth: 20 | Band: LTE_B3 | Cell st: registered

PCID: 494 | RSRP: -104 | RSRQ: -14 | RSSI: -67 | RSSNR: 15

CA 1

Primary: 0 | Frequency: 3150 | Bandwidth: 20 | Band: LTE_B7 | Cell st: activated

PCID: 494 | RSRP: -112 | RSRQ: -9 | RSSI: -84 | RSSNR: 12

CA 2

Primary: 0 | Frequency: 1471 | Bandwidth: 15 | Band: LTE_B3 | Cell st: activated

PCID: 494 | RSRP: -107 | RSRQ: -10 | RSSI: -81 | RSSNR: 9

CA 3

Primary: 0 | Frequency: 154570 | Bandwidth: 15 | Band: 5G_N28 | Cell st: activated

PCID: -1 | RSRP: -1 | RSRQ: -1 | RSSI: -1 | RSSNR: -1

root@RUTX50:/usr/fableman# gsmctl -G

CA 0

Primary: 1 | Frequency: 1300 | Bandwidth: 20 | Band: LTE_B3 | Cell st: registered

PCID: 494 | RSRP: -105 | RSRQ: -14 | RSSI: -66 | RSSNR: 16

CA 1

Primary: 0 | Frequency: 3150 | Bandwidth: 20 | Band: LTE_B7 | Cell st: activated

PCID: 494 | RSRP: -110 | RSRQ: -12 | RSSI: -75 | RSSNR: 12

CA 2

Primary: 0 | Frequency: 1471 | Bandwidth: 15 | Band: LTE_B3 | Cell st: activated

PCID: 494 | RSRP: -108 | RSRQ: -12 | RSSI: -72 | RSSNR: 11

CA 3

Primary: 0 | Frequency: 154570 | Bandwidth: 15 | Band: 5G_N28 | Cell st: activated

PCID: -1 | RSRP: -1 | RSRQ: -1 | RSSI: -1 | RSSNR: -1

root@RUTX50:/usr/fableman# gsmctl -G

CA 0

Primary: 1 | Frequency: 1300 | Bandwidth: 20 | Band: LTE_B3 | Cell st: registered

PCID: 494 | RSRP: -104 | RSRQ: -9 | RSSI: -77 | RSSNR: 13

CA 1

Primary: 0 | Frequency: 3150 | Bandwidth: 20 | Band: LTE_B7 | Cell st: deactivated

PCID: 494 | RSRP: -112 | RSRQ: -10 | RSSI: -93 | RSSNR: 13

CA 2

Primary: 0 | Frequency: 1471 | Bandwidth: 15 | Band: LTE_B3 | Cell st: deactivated

PCID: 494 | RSRP: -107 | RSRQ: -9 | RSSI: -88 | RSSNR: 12

CA 3

Primary: 0 | Frequency: 154570 | Bandwidth: 15 | Band: 5G_N28 | Cell st: deactivated

PCID: -1 | RSRP: -1 | RSRQ: -1 | RSSI: -1 | RSSNR: -1

Daumantas · January 23, 2024, 1:06pm

Hello,

As you can see, during the speed test all LTE and 5G cells are being activated, thus it seems like everything is functioning properly.

Best regards,

orre · January 23, 2024, 1:34pm

@fableman regarding speed test maybe you have read about my field test with the rutx50 and other modems/routers and devices. All with same SIM card in same spot where I get 700-1000Mbit/s with the other devices the Rutx50 maxes out at around 3-400Mbit/s. Teltonika tells me this is because The Rutx50 is an industrial router and router acts this way because its stable and reliable.
(Speed tests where obviously performed with LAN-cable to computer)

system · February 5, 2024, 4:53pm

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