Carrier aggregation info not shown with RUTX_R_00.07.23.5 on RUTX50

Networking Solutions Issue
1

Hello,

After upgrading my RUTX50 to RUTX_R_00.07.23.5 the Status → Network → Mobile page no longer displays Carrier aggregation information. What I am seeing in the page is that carrier aggregation is inactive and I only see the primary band. The secondary bands are not visible.

But from command line:

admin@Teltonika-RUTX50:~$ gsmctl -A ‘AT+QCAINFO’
+QCAINFO: “PCC”,3194,50,“LTE BAND 7”,1,276,-94,-16,-61,2
+QCAINFO: “SCC”,1700,100,“LTE BAND 3”,1,276,-88,-15,-64,0,0,-,-
+QCAINFO: “SCC”,3050,100,“LTE BAND 7”,1,276,-97,-13,-72,3,0,-,-
+QCAINFO: “SCC”,6400,50,“LTE BAND 20”,1,276,-82,-20,-52,-6,0,-,-
+QCAINFO: “SCC”,634080,12,“NR5G BAND 78”,427

admin@Teltonika-RUTX50:~$

I can tell that I have carrier aggregation also by doing a speed test. It is fast enough to say that carrier aggregation is active.

Please check why the Mobile page on the GUI thinks it is inactive.

Some more findings:

admin@Teltonika-RUTX50:~$ gsmctl -A ‘AT+QCAINFO’
+QCAINFO: “PCC”,3050,100,“LTE BAND 7”,1,276,-92,-12,-59,2
+QCAINFO: “SCC”,1700,100,“LTE BAND 3”,1,276,-86,-12,-65,-1,0,-,-
+QCAINFO: “SCC”,1871,75,“LTE BAND 3”,1,276,-87,-12,-66,0,0,-,-
+QCAINFO: “SCC”,6400,50,“LTE BAND 20”,1,276,-83,-19,-55,-6,0,-,-
+QCAINFO: “SCC”,634080,12,“NR5G BAND 78”,427

admin@Teltonika-RUTX50:~$ gsmctl -G
CA 0
Primary: 1 | Frequency: 3050 | Bandwidth: 20 | Band: LTE_B7 | Cell st: registered
PCID: 276 | RSRP: -92 | RSRQ: -12 | RSSI: -60 | RSSNR: 3
CA 1
Primary: 0 | Frequency: 1700 | Bandwidth: 20 | Band: LTE_B3 | Cell st: deactivated
PCID: 276 | RSRP: -87 | RSRQ: -12 | RSSI: -66 | RSSNR: -1
CA 2
Primary: 0 | Frequency: 1871 | Bandwidth: 15 | Band: LTE_B3 | Cell st: deactivated
PCID: 276 | RSRP: -87 | RSRQ: -13 | RSSI: -65
CA 3
Primary: 0 | Frequency: 6400 | Bandwidth: 10 | Band: LTE_B20 | Cell st: deactivated
PCID: 276 | RSRP: -85 | RSRQ: -18 | RSSI: -56 | RSSNR: -6
CA 4
Primary: 0 | Frequency: 634080 | Bandwidth: 100 | Band: 5G_N78 | Cell st: deactivated
PCID: -1 | RSRP: -1 | RSRQ: -1 | RSSI: -1

So although modem is ok and uses carrier aggregation, gsmctl does not correctly interpret this and thinks the secondary bands are inactive. It seems like a libgsm.so problem.

2

Yes I’ve have the same problem with latest 7.23.5 firmware.

And now 5G SA not working :confused:

3

One more finding. I am not actually seeing the primary band on the Mobile page. I am just seeing a band sometimes it coincides with the primary sometimes not.

4

Maybe as in the carrier aggregation case it appears not working on the page but on the modem level it may be ok.

I wonder is this community forum the right place to report these issues?

5

While investigating slow speeds that started about 2-3 weeks ago, I noticed that carrier aggregation is also marked as “inactive” and my modem temperature was quite high.

I’m using an OTD500 and I’m located in Athens Greece.

More details in my thread here:

6

At least temperature seems normal on RUTX50. I am also in Athens.

8

Hello, @drakidis!

Thank you for your post!

We were able to recreate the issue on our side and have forwarded the information to our RnD team for further investigation.

We will let you know once we have something to report.

Kind regards,
Laura.

9

RUTX50 RUTX_R_00.07.23.6 - problem still exists.