OpenBSC September 2023

openbsc@lists.osmocom.org

10 participants
12 discussions

by bryan coxwell

Hi all, Just wanted to share an issue and a quick workaround I found for it in case anyone else has the same problem. I believe a cmd2 update is causing pySim-shell to fail. After installing it on a fresh install of Ubuntu Server 20.04 and getting the following error when I run "python3 pySim-shell -p0": >Using PC/SC reader interface >Autodetected card type: sysmoUSIM-SJS1 >AIDs on card: > USIM: a0000000871002ffffffff8907090000 >Traceback (most recent call last): > File "pySim-shell.py", line 512, in <module> > app = PysimApp(card, rs, opts.script) > File "pySim-shell.py", line 59, in __init__ > super().__init__(persistent_history_file='~/.pysim_shell_history', allow_cli_args=False, use_ipython=True, auto_load_commands=False, command_sets=basic_commands, >startup_script=script) >TypeError: __init__() got an unexpected keyword argument 'use_ipython' If you run into this you can fix it by uninstalling cmd2 and reinstalling cmd2 with "pip3 install cmd2==1.5". Best, Bryan

1 month, 3 weeks

libosmocore/BSC/MSC: MO voice calls rejected from Siemens S11E (patch included)

by Lennart Müller

Hi, I had a problem placing MO GSM calls from a Siemens S11E: The calls were dropped immediately; Osmo-MSC reports "Cannot compose Channel Type from bearer capabilities" After investigating the SETUP request from the S11E, the phone does not use octet 3a (no extension bit set in IE 3). Wireshark decodes the radio channel requirement as "Full rate support only MS/fullrate speech version 1 supported", so I added a condition to the gsm48_ie.c function of libosmocore to include at least GSM FR in the list of available speech_ver in case octet 3 has no extension. Attached to this message are the Abis-IP PCAP traces of MO calls, and the patch for gsm48_ie.c. Regards, Lennart

2 months, 3 weeks

Problem while running NIB on Open Cellular Base sation

by Brackley Casinga

Hi, My name is Brackley Cassinga Form DRC, we run a community network called pamoja net where we offer gsm services using osmocom open source software and OC Base station. Recently I have tried to install another base station as the same installed but I could not find any resource guiding through all the steps to take to run NIB on a base station. I'm currently running Ubuntu and I will appreciate if you could guide me on the installation of BSC,hlr,MSC , in order to run a basic gsm network. Thank you. Regards -- *Ir Brackley heshima Casinga **Pacifique* *CEO and Founder of kwanzatechnologie* KwanzaTechnologies ,GlobalElectronics +243977265291 | +243977265291 | Pcassinga(a)gmail.com/ brackley(a)ensemblepourladifference.org www.kwantechnologies.jimdosite.com <http://www.kwantechnologies.com/> | Skype: Brackley cassinga <https://webapp.wisestamp.com/#> Av Semliki N 43

2 months, 3 weeks

Osmo-CBC: (bts=0) Rx CBSP RESET: clearing all state; disabling broadcast

by Sipos Csaba

Dear List, I tried to set up Osmo-CBC with a Nokia MetroSite BTS according to the wiki. But every time the CBSP clinet of the BSC connects to the CBC server, the BSC log indicates: DCBS cbsp_link.c:150 CBSP Client connected to CBC: (r=127.0.0.1:48049<->l=127.0.0.1:46133) DCBS smscb.c:805 (bts=0) Rx CBSP RESET: clearing all state; disabling broadcast Same time on the CBC: <0002> cbsp_link.c:265 New CBSP link connection from 127.0.0.1:46133 <0002> cbsp_link_fsm.c:181 local-bsc: RESTART (CBS) but re-sending not implemented yet The BTS is configured with CCCH+SDCCH4+CBCH, and these are the relevant sections: osmo-cbc.cfg: cbc unknown-peers reject ecbe local-ip 127.0.0.1 local-port 12345 cbsp local-ip 127.0.0.1 local-port 48049 sbcap local-ip 127.0.0.1 local-port 29168 peer cbsp local-bsc mode server remote-port 46133 remote-ip 127.0.0.1 osmo-bsc.cfg: cbc mode client client remote-ip 127.0.0.1 local-ip 127.0.0.1 local-port 46133 Every other CS service is working fine on the BTS. Is there anything else I might have missed? Regards, Csaba

7 months

OsmoDevCall on Sept 20, 2023: Interconnecting an Osmocom GSM network to USA PSTN

by Harald Welte

Dear Osmocom community, we're happy to announce the next incarnation of OsmoDevCall. when: September 20, 2023 at 20:00 CEST where: https://osmocom.org/OsmoDevCall (Big Blue Button) This time, @falconia will be presenting on Themyscira Wireless: a case study in interconnecting an Osmocom GSM network to USA PSTN This meeting will have the following schedule: 20:00 meet + greet 20:10 topic as outlined above 21:00 unstructured supplementary social event [*] Attendance is free of charge and open to anyone with an interest in Osmocom or open source cellular technologies. More information about OsmoDevCall, including the schedule for further upcoming events can be found at https://osmocom.org/projects/osmo-dev-con/wiki/OsmoDevCall Looking forward to meeting you soon! Best regards, Harald [*] this is how we started to call the "unstructured" part of osmocom developer conferences in the past, basically where anyone can talk about anything, no formal schedule or structure. -- - Harald Welte <laforge(a)osmocom.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

7 months, 1 week

osmo-msc release?

by Neels Hofmeyr

I just noticed that a release was made, ignoring this remark in osmo-msc's TODO-RELEASE: MNCC osmo-sip-connector should do full SDP via MNCC and be released at the same time as the next osmo-msc, ask neels, thanks https://gerrit.osmocom.org/c/osmo-msc/+/34386 There is no full SDP support in current osmo-sip-connector. In fact the patch for that is just now becoming ready for merge: https://gerrit.osmocom.org/c/osmo-sip-connector/+/16222 I guess we should get the sipcon patch merged, and follow up with another sipcon release. ~N

7 months, 1 week

icE1USB gateware

by Sipos Csaba

Dear list, I built an icE1USB device so I can provide stable clock to my legacy Nokia BTS. I have not found any information about how to bring up a completely empty device, so I just took the icE1usb-202210-5890f3e4.bin file and flashed it to the SPI flash, yet the device is not booting. Maybe something else is missing (like a boot block), or the binary has to be flashed with an offset? The device takes 80mA in this state, USB device is not recognized on the host. Thanks!

7 months, 1 week

September 2023 Osmocom CNI releases (202302)

by Pau Espin Pedrol

Hi all, I am happy to announce that a new version 202309 of the Osmocom CNI (Cellular Network Infrastructure) software has been released this week. For further information, please visit: https://osmocom.org/news/220 Regards, Pau -- - Pau Espin Pedrol <pespin(a)sysmocom.de> http://www.sysmocom.de/ ======================================================================= * sysmocom - systems for mobile communications GmbH * Alt-Moabit 93 * 10559 Berlin, Germany * Sitz / Registered office: Berlin, HRB 134158 B * Geschaeftsfuehrer / Managing Director: Harald Welte

7 months, 2 weeks

Re: Libraries not found when using nightly

by Sipos Csaba

Hi Vadim, You are probably correct, in the mean time I recompiled everything, so it works now, but most likely the *-dev packages were missing. Thanks for pointing that out! Another question I have is about displaying the Osmo-BSC logs: I am working on a museum setup and would be nice to show the BSC log output on the screen when there is activity. I wonder if there is a practical way to do that without altering the systemd part. Regards, Csaba

7 months, 2 weeks

Libraries not found when using nightly

by Sipos Csaba

Dear List, I face the problem that when I am in general using the nightly builds on Ubuntu 20.04, but I want to compile a specific project (Osmo-BSC in this case), the configure script is not able to find the Osmocom libraries which are already installed and available. Output of the configure script: configure: error: Package requirements (libosmocore >= 1.8.0) were not met: Package 'libosmocore', required by 'virtual:world', not found Libosmocore is available on the system: root@openbsc:~/osmo-bsc_bootstrap_mod/osmo-bsc# ldconfig -v|grep libosmocore /sbin/ldconfig.real: Can't stat /usr/local/lib/i386-linux-gnu: No such file or directory /sbin/ldconfig.real: Path `/usr/lib/i386-linux-gnu' given more than once /sbin/ldconfig.real: Can't stat /usr/local/lib/i686-linux-gnu: No such file or directory /sbin/ldconfig.real: Can't stat /lib/i686-linux-gnu: No such file or directory /sbin/ldconfig.real: Can't stat /usr/lib/i686-linux-gnu: No such file or directory /sbin/ldconfig.real: Can't stat /usr/local/lib/x86_64-linux-gnu: No such file or directory /sbin/ldconfig.real: Path `/usr/lib/x86_64-linux-gnu' given more than once /sbin/ldconfig.real: Path `/lib/x86_64-linux-gnu' given more than once /sbin/ldconfig.real: Path `/usr/lib/x86_64-linux-gnu' given more than once /sbin/ldconfig.real: Path `/usr/lib' given more than once /sbin/ldconfig.real: /lib/i386-linux-gnu/ld-2.31.so is the dynamic linker, ignoring /sbin/ldconfig.real: /lib/x86_64-linux-gnu/ld-2.31.so is the dynamic linker, ignoring libosmocore.so.20 -> libosmocore.so.20.0.0 Can someone help me with what kind of flags do I need to provide to the configure script and how? Much appreciate the help! Regards, Csaba

7 months, 2 weeks

GPRS hardware recommendations

by Ben Huntsman

Hi all- I'm trying to get a GPRS network set up to serve a few old phones I have, but I don't really need anything beyond that. There's a daunting array of choices and scant documentation out there, so I just thought I'd ask, does anyone have any recommendations for what the least expensive hardware solution to implement GPRS would be? In particular though, I'd like to go with commercial non-SDR hardware, and I'd rather spend a tiny bit more if it would get something smaller... Are there any good GPRS-capable femtocells that work well with the Osmo stack? I'm looking at some old Ericsson gear but hoping for something more compact. Thanks in advance! -Ben

7 months, 3 weeks

Can I build my own GMR satellite/base station and core network based on OpenBSC?

by 1191595017＠qq.com

Dear Osmocom community, Can I build my own GMR satellite/base station and core network based on open-source software (e.g. osmo-bts) and SDR? GMR is mentioned in the Osmo-bts user manual, but it doesn't say if it is implemented and how to configure it. If Osmo-bts doesn't work, is there any other project to build my own GMR base station and establish a connection with a GMR device? Best regards, Wei

7 months, 3 weeks

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OpenBSC September 2023