AW: 5G connection establishment

[Federico Murciano]

​Hi Sebastian,


Did you set up something manually to get the ENDC connection or did it connect in this mode automatically? I can only connect to LTE. Some tips to manage to connect to 5G?


--
Federico Murciano
B.Sc. Telecommunications Engineer
federico.murciano at dai-labor.de<mailto:tobias.doersch at dai-labor.de>
Tel. +49 (0) 30/314 -74 025
Future in touch.
DAI-Labor
Technische Universität Berlin
Fakultät IV – Elektrotechnik & Informatik Sekretariat TEL 14 Ernst-Reuter-Platz 7
10587 Berlin, Germany

www.dai-labor.de<http://www.dai-labor.de/>

DAI-Labor - Distributed Artificial Intelligence Laboratory Chief Executive Director: Prof. Dr. Dr. h.c. Sahin Albayrak

________________________________
Von: Sebastian Sjoholm <sebastian.sjoholm at gmail.com>
Gesendet: Dienstag, 29. September 2020 20:07
An: Federico Murciano
Cc: Reinhard Speyerer; modemmanager-devel at lists.freedesktop.org
Betreff: Re: 5G connection establishment

Hi,

I don't have MM installed, but when using minicom on the AT port,

at+qeng="servingcell"
+QENG: "servingcell","NOCONN"
+QENG: "LTE","FDD",235,96,11A8801,270,225,1,5,5,D9,-75,-5,-52,24,-
+QENG:"NR5G-NSA",235,96,330,-64,345,-11
OK

Regards,
Sebastian


On Tue, Sep 29, 2020 at 7:47 PM Federico Murciano <Federico.Murciano at dai-labor.de<mailto:Federico.Murciano at dai-labor.de>> wrote:
Hi Reinhard,

Thanks for your reply. I still get the same output:

edge1 at dai-edge1:~$ sudo mmcli -m 1 '--command=at+qeng="servingcell"'
error: command failed: 'GDBus.Error:org.freedesktop.ModemManager1.Error.Connection.NoCarrier: No carrier'

edge1 at dai-edge1:~$ sudo mmcli -m 1 --command=at+qeng="servingcell"
error: command failed: 'GDBus.Error:org.freedesktop.ModemManager1.Error.Connection.NoCarrier: No carrier'


--
Federico Murciano
B.Sc. Telecommunications Engineer
federico.murciano at dai-labor.de<mailto:federico.murciano at dai-labor.de>
Tel. +49 (0) 30/314 -74 025
Future in touch.
DAI-Labor
Technische Universität Berlin
Fakultät IV – Elektrotechnik & Informatik Sekretariat TEL 14 Ernst-Reuter-Platz 7
10587 Berlin, Germany

www.dai-labor.de<http://www.dai-labor.de>

DAI-Labor - Distributed Artificial Intelligence Laboratory Chief Executive Director: Prof. Dr. Dr. h.c. Sahin Albayrak

________________________________________
Von: ModemManager-devel <modemmanager-devel-bounces at lists.freedesktop.org<mailto:modemmanager-devel-bounces at lists.freedesktop.org>> im Auftrag von Reinhard Speyerer <rspmn at arcor.de<mailto:rspmn at arcor.de>>
Gesendet: Dienstag, 29. September 2020 19:00
An: Federico Murciano
Cc: modemmanager-devel at lists.freedesktop.org<mailto:modemmanager-devel at lists.freedesktop.org>; Sebastian Sjöholm
Betreff: Re: 5G connection establishment

On Tue, Sep 29, 2020 at 02:40:31PM +0000, Federico Murciano wrote:
> Si Sebastian,
>
> When I run the at+qeng=???servingcell??? command with mmcli as:
>
> sudo mmcli -m 0 --command=at+qeng=???servingcell???
>
> I get the following error:
>
> GDBus.Error:org.freedesktop.ModemManager1.Error.Connection.NoCarrier: No carrier'
>
> Do you know why am I getting it?
>
> Thank you!
>

Hi Federico,
you have to take shell quoting into account:

$ echo sudo mmcli -m 0 --command=at+qeng="servingcell"
sudo mmcli -m 0 --command=at+qeng=servingcell
$ echo sudo mmcli -m 0 '--command=at+qeng="servingcell"'
sudo mmcli -m 0 --command=at+qeng="servingcell"

Regards,
Reinhard

> --
> Federico Murciano
> B.Sc. Telecommunications Engineer
> federico.murciano at dai-labor.de<mailto:federico.murciano at dai-labor.de>
> Tel. +49 (0) 30/314 -74 025
> Future in touch.
> DAI-Labor
> Technische Universität Berlin
> Fakultät IV ??? Elektrotechnik & Informatik Sekretariat TEL 14 Ernst-Reuter-Platz 7
> 10587 Berlin, Germany
>
> www.dai-labor.de<http://www.dai-labor.de>
>
> DAI-Labor - Distributed Artificial Intelligence Laboratory Chief Executive Director: Prof. Dr. Dr. h.c. Sahin Albayrak
>
> ________________________________________
> Von: Sebastian Sjöholm <sebastian.sjoholm at gmail.com<mailto:sebastian.sjoholm at gmail.com>>
> Gesendet: Dienstag, 29. September 2020 05:37
> An: Nick B
> Cc: Federico Murciano; modemmanager-devel at lists.freedesktop.org<mailto:modemmanager-devel at lists.freedesktop.org>
> Betreff: Re: 5G connection establishment
>
> Hi,
>
> When using NSA (ENDC) the anchor will always be LTE, so for the modem LTE will be the primary network.
>
> The NR will only be used for the user plane, and activated only during data session, but even during data session signalling (control plane) will be on LTE.
>
> Depending on network setup, the NR session will be disconnected right after the data session. At some it can be instant, other might have longer timeouts.
>
> On RM500 you can check with at+qeng=???servingcell??? and on SIM8200 at+cpsi? to see if the additional NR cell is connected after or during data session.
>
> Regards,
> Sebastian
>
> @Mobile
>
> > On 29 Sep 2020, at 00:21, Nick B <nickberry17 at icloud.com<mailto:nickberry17 at icloud.com>> wrote:
> >
> > ???Hey,
> >
> > Just for the record, I am having the excat same experience in Australia with at Quectel RM500Q-GL and SIMCOM SIM8200EA-M2.  Is there any debugging info that would be helpful?
> >
> > Best,
> > Nick
> > _______________________________________________
> > ModemManager-devel mailing list
> > ModemManager-devel at lists.freedesktop.org<mailto:ModemManager-devel at lists.freedesktop.org>
> > https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel
> _______________________________________________
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