Open Source Mobile Communications

I've uploaded my presentation slides from OsmoDevCon2013 to the Wiki. The PDF/HTML files have been generated using MagicPoint and look about as crappy as you would expect. Enjoy :)

I've also uploaded my slides from Linux Kongress 2010 to the Wiki. They are somewhat outdated, but contain a much more complete overview of the DECT stack and should provide a better picture than the OsmoDevCon slides to people not versed in wireless communication technologies.

I've merged libnl 3.2 into the DECT libnl tree and converted libdect to the new libnl file hierarchy. Unfortunately this means libdect will currently not build against older versions of libnl, to fix this I'll probably convert the build system to automake.

Please test and report.

I've merged the latest major kernel release (v3.8) into the DECT tree. There are no changes affecting the userspace API, everything should continue to work without further changes. The current tree can be fetched at ​git://git.osmocom.org/dect/linux-2.6.git.

Since I'm currently traveling and don't have any hardware for testing available, please let me know whether things are still working fine for you.

Short-term plans are to finish support for the SC14452 and US-DECT during the OsmoDevCon? next week. If someone is interested in providing me remote access to a CoA Type III device, I'll also look into finishing support for these.

For about one week from March 20, 2013 on most of the osmocom.org severs and services have been offline due to a hardware failure in the physical machine that was hosting all the virtual machines related to the project.

As I was on extensive business related travel, I couldn't go to the data center and take care of fixing the problem myself. So we had the hard disks sent to my home in Berlin, obtain a machine that has the neccessary SCA-80 connector for the old-fashioned enterprise SCSI hard disks and then start recovery by means of an old backup in the data center + rsync'ing the changes via my slow DSL uplink.

The good news is: Everything is up and running again on different hardware, and there is no data loss as the hard disk was fully intact.

In the coming weeks, we will migrate the various virtual machines over to a new (rented) physical machine, sponsored by http://​sysmocom.de/

I'd like to thank

• zecke for providing emergency recovery for the git server
• roh for providing an old Sun v20z to mount + read the SCA drives
  ​* http://noris.net/ for mailing the hard disks to Berlin
• the community for their patience with the slow recovery process

This is the announcement for the latest incarnation of our bi-weekly Osmocom Berlin meeting.

Feb 6, 8pm @ CCC Berlin, Marienstr. 11, 10117 Berlin

There is no formal presentation scheduled for this meeting. However, we'll have a progress report + demonstration of current osmo-pcu.

If you are interested to show up, feel free to do so. The meeting is free as in "free beer", despite no actual free beer being around ;)

Dear fellow Osmcoom developers,

it is my pleasure to finally announce the date + venue of OsmoDevCon2013:

• Date: April 04 through April 07, 2013
• Place: IN-Berlin, Lehrter Str. 53, Berlin

Like last year, this is an event for developers of the various Osmocom proejects. Reservation and confirmation of reservation is required.

The event is free of charge. The Room is made available by ​IN-Berlin e.V., an Internet related non-profit organization. Lunch catering will be sponsored (so far by sysmocom GmbH, but if any other sponsors come up, we are happy to share the cost).

So all you have to cover is your own travel + accomodation costs, as well as breakfast and dinner. If you are an active developer and cannot afford travel/accomodation, please let me know and I'll see if we can do something about it.

If you would like to attend, please send a message to ​laforge@gnumonks.org applying for registration of the event. The registration deadline is March 5, i.e. one week from now.

There is no detailed schedule of talks yet. I will start a separate discussion suggesting / collecting topics in the next couple of days.

More information is (and will be made) available at OsmoDevCon2013

Further discussion regarding the event should be directed at the osmocom-event-orga@lists.osmocom.org mailing list, to avoid cross-posting over the various project-specific lists.

Best regards and happy hacking,
Harald

This is the announcement for the latest incarnation of our bi-weekly Osmocom Berlin meeting.

Feb 20, 8pm @ CCC Berlin, Marienstr. 11, 10117 Berlin

There is no formal presentation scheduled for this meeting.

If you are interested to show up, feel free to do so. The meeting is free as in "free beer", despite no actual free beer being around ;)

Several talks by Osmocom team member were presented at 29C3. Slides and video are available.

• "Let Me Answer That for You" by Nico Golde ​Abstract & Slides ​Video
• "Further hacks on the Calypso platform" by Sylvain Munaut ​Abstract & Slides ​Video
• "29C3 GSM: Cell phone network review" by Peter Stuge ​Abstract & Slides ​Video

After months of work by Ivan Kluchnikov and Andreas Eversberg, the Osmocom GPRS Packet Control Unit (OsmoPCU) has finally reached a point where it makes sense to release a first version: v0.1

There are still a number of limitations and shortcomings, most of which should be indicated in the wiki at osmo-pcu. However, even without hand-over, timing advance loop, power control loop or dynamic link adaption of the coding scheme, it is already a useful implementation for lab-type setups and small, indoor real-world deployments.

osmo-pcu can be used either with OsmoBTS on the sysmocom sysmoBTS hardware, or with Fairwaves' branch of OpenBTS on hardware like the Ettus USRP family or UmTRX.