[srsran-users] implementing 1240-1300MHz for experiments (23cm Amateur Radio band) srsran-users

Fri Apr 14 07:46:42 UTC 2023

Hi Mike,

Unless you modify the air interface implementation, there is no way to 
just disable encryption. Unless the regulatory of your country allows 
for encrypted data over the air in the ham bands, you'll need to modify 
the code and use a non-standard LTE implementation I guess.

73's
Rafael PU2UIT

On 4/4/23 13:16, Mike Zwingl, ICSSW wrote:
> Hi,
> I like this open source project for LTE and 5G using SDR-tx/rx.
> Is there a way to get it working on 1200Mhz? Specifically between
> 1240-1300Mhz as this is the world wide band for Amateur Radio
> and we could use 2x10Mhz FDD or more to experiment with a private
> (non-commercial, non-encrypted) 4G or 5G campus network.
> We could even use more than 10W and high gain antennas on this band legally
> with a ham license in many countries.
> 
> Any ideas?
> Someone has tested already?
> Thank you.
> 
> 
> 73 de
> OE3MZC – Mike Zwingl
> President
> ____________________________________________
> 
> Institute of Citizen Science for Space & Wireless Communication
> ICSSW-AMSAT-OE
> Hoehenstr. 65
> A-3040  Neulengbach
> Mobil +43 664 3408388
> ZVR  1822992100
> www.icssw.org
> www.amsat-oe.com
> 
> 
> 
> 
> 
> 
> -----Ursprüngliche Nachricht-----
> Von: srsran-users [mailto:srsran-users-bounces at lists.srsran.com] Im Auftrag
> von srsran-users-request at lists.srsran.com
> Gesendet: Dienstag, 4. April 2023 11:29
> An: srsran-users at lists.srsran.com
> Betreff: srsran-users Digest, Vol 98, Issue 5
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> Today's Topics:
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>     1. Re: Connection between UE and ENB lost after several seconds
>        (Ameya Ramdurgkar)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Mon, 3 Apr 2023 18:05:04 +0000
> From: Ameya Ramdurgkar <ameyasuresh at hotmail.com>
> To: "srsran-users at lists.srsran.com" <srsran-users at lists.srsran.com>
> Subject: Re: [srsran-users] Connection between UE and ENB lost after
> 	several seconds
> Message-ID:
> 	
> <DM4PR84MB1736665F8E1DCB051E64BDE3B4929 at DM4PR84MB1736.NAMPRD84.PROD.OUTLOOK.
> COM>
> 	
> Content-Type: text/plain; charset="us-ascii"
> 
> Hi All,
> 
> I am also having the same error like this user who posted before me. I am
> using SRS RAN version 22.10
> 
> Someone had posted that this had to do with the internal reference clock not
> being stable enough. So i have tried to connect my SDR to an external
> reference clock which is stable and the connection is still not stable.
> 
> Attached are the logs and the pcaps.
> 
> I noticed that an earlier version of SRSRan is more stable.
> 
> I must also remark that i am not using the Osmocomm SIMs, but this shouldn't
> affect the stability of the connections should it?
> 
> Thank you in advance,
> 
> 
> 
> 
> 
> ________________________________
> From: srsran-users <srsran-users-bounces at lists.srsran.com> on behalf of
> Jiangqi Hu <jqhu27 at gmail.com>
> Sent: 31 March 2023 09:14
> To: srsran-users at lists.srsran.com <srsran-users at lists.srsran.com>
> Subject: [srsran-users] Connection between UE and ENB lost after several
> seconds
> 
> Hi srsRAN team,
> 
> I am running the srsRAN suit. srsUE can attach to the network at the first
> several seconds and the assigned IP address can be seen from the terminal.
> But after several seconds, the connection is lost and I cannot ping srsUE
> from srsEPC or vice versa. I attached the screenshots and log files to this
> email.
> 
> Thanks for your help in advance.
> 
> Best,
> Jiangqi
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