OpenBSC

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4200 discussions

BS11 + HFC-E1 Board for sale
by Kai Münz 25 Feb '10

25 Feb '10

Hello, Due to lack of time I have to sell my equipment: 1x Siemens BS11, GSM900, Dual-Trx 1x CologneChip HFC-E1 Board Unit is working in this setup. Fixed price excluding shipping: Euro 500 The Unit is located in 69436 Schönbrunn (Germany) (Heidelberg Area). I still got the original packaging of the BS11 so shipping is possible. (additional costs) Regards, Kai

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AW: Sangoma E1 card problems
by Andreas.Eversberg 23 Feb '10

23 Feb '10

hi, two questions > FATAL: Error inserting mISDN_l1 (/lib/modules/2.6.24-24-server/extra/mISDN_l1.ko): Unknown symbol in module, or unknown parameter (see dmesg) mISDN_l1 i part of mISDN version 1. why do you load it? is it because your hfcmulti module is also version 1? just remove all extra (mISDN-)modules and re-install mISDN. > is any body using Sangoma E1 card ? does it have an HFC-E1 chipset? maybe you should enable init-debugging: modprobe hfcmulti debug=0x40000 in case it loads, see dmesg if it is detected. also do "lspci -nv" to see device ids. regards, andreas

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Build dependency / libosmocore
by Harald Welte 21 Feb '10

21 Feb '10

Hi! JFYI: Zecke and myself have been playing around with the first steps towards a layer2 of the mobile station side. In order to reduce code duplicaiton, we have moved a lot of header files and some code such as msgb.c, signal.c, bitvec.c and others into the library "libosmocore" (LIBrary Open Source MObile [communications] CORE). This library resides at git://git.osmocore.org/libosmocore.git You will have to download, compile and install the library before you can compile/install openbsc. This is done with the usual 'autoreconf -i && ./configure && make' steps. Sorry for the minor inconvenience, but we really didn't want to have code duplication between our projects. Regards, Harald -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

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Announcing project OsmocomBB: Open Source GSM Stack
by Harald Welte 19 Feb '10

19 Feb '10

Good news, everyone [tm]! I am hereby publicly announcing project OsmocomBB: A Free and Open Source software project to create a Free Software GSM baseband firmware. The baseband chipset is the part of a mobile phone that actuall communicates directly with the GSM network. It typically includes a DSP and a microprocessor running some RTOS, drivers for the baseband chipset, the GSM protocol stack and some kind of user interface. GSM has been deployed first 19 years ago. Despite billions of phones deployed world wide, all of them run a proprietary baseband firmware, consisting of proprietary drivers, RTOS and GSM protocol stack. OsmocomBB has set out to change this. We do not want our phones to be a black box connected 24/7 to a public network. We want to decide what kind of data our phone reveals about us or not. The authors behind the project have already spent the last 15 months implementing an Open Source GSM network side protocol implementation called OpenBSC. In January 2010, they decided to go after the phone side protocol stack - which turned into OsmocomBB. => What is the project status? Right now we are at a state where we have full control over the baseband hardware, including the DSP and ARM cores, the analog baseband chip, the RF transceiver, keypad, LCD display and other components. We can scan the GSM band for cells, perform FCCH detection, run automatic gain control to synchronize to the cells carrier, detect the SCH to get BSIC and GSM frame number, as well as dump the BCCH and CCCH of the cell. => What does Osmocom mean? Open Source MObile COMmunications. It is meant as an umbrella name for various FOSS projects related to communications, including OsmocomBB but also including sister projects like OpenBSC. => Can I make phone calls yet? No. We are currently in Rx (receive) only mode, and have no Layer2 or Layer3 implementation yet. However, the difficult parts of driving the GMS hardware and implementing a minimal Layer1 are behind us, so we are confident to proceed to actual phone calls during the months to come. => Where can I get the source? The git repository is at git://git.osmocom.org/osmocom-bb.git The mailing lists are at http://lists.osmocom.org/ The project homepage including wiki is at http://bb.osmocom.org/ => What phones are supported? We are implementing OsmocomBB as hardware-independent as possible. At the moment, we only have drivers for the Ti Calypso Digital Baseband chip. Our main target are the following Motorola-branded phones (made by Compal): C115/116/117/118/119/120/121/122/123/139/140/155 Adding support for other Calypso-based phones should be relatively easy, but porting it to a different baseband chip is a lot of work, especially without access to good documentation. => How can you help? We need developers who have experience in microcontroller development working on an ARM7TDMI core. You do not need to know anything about GSM in order to help us with tasks such as the UI, driving the battery charging controller, etc. If you want to join, get yourself a phone, serial cable, join the developer mailing list and introduce yourself! Happy Hacking Harald Welte -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

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Installation Error
by Ihab el Bakri 18 Feb '10

18 Feb '10

Hi, I am having some trouble installing OpenBSC on kernel 2.6.32 (Ubuntu), the actual error message: make[2]: Entering directory `/home/bs11/openbsc/openbsc/src' gcc -DHAVE_CONFIG_H -I. -I.. -I../include -Wall -g -O2 -MT gsm_04_11.o -MD -MP -MF .deps/gsm_04_11.Tpo -c -o gsm_04_11.o gsm_04_11.c gsm_04_11.c:349:16: error: invalid suffix "b111" on integer constant gsm_04_11.c:350:8: error: invalid suffix "b000" on integer constant gsm_04_11.c:352:8: error: invalid suffix "b001" on integer constant gsm_04_11.c:354:8: error: invalid suffix "b010" on integer constant gsm_04_11.c:356:8: error: invalid suffix "b011" on integer constant make[2]: *** [gsm_04_11.o] Error 1 make[2]: Leaving directory `/home/bs11/openbsc/openbsc/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/bs11/openbsc/openbsc' make: *** [all] Error 2 any other information about connecting to the BS-11 with a sangoma E1 card will be very helpfull ! best regards Ihab el Bakri _________________________________________________________________ Hotmail: Powerful Free email with security by Microsoft. https://signup.live.com/signup.aspx?id=60969

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Who has a nanoBTS for sale?
by Konrad Meier 17 Feb '10

17 Feb '10

Hello, I am working at the university of Freiburg in Germany and I am very interested in buying some nanoBTS for a project at the computation department. Who has a nanoBTS (GSM1800) for sale? Depending on the price I need 3-5 units. Regards Konrad Meier

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Reseting Unit-ID on nanoBTS
by Bjarni S. Sigurðsson 04 Feb '10

04 Feb '10

Hello, I have a nanoBTS from ipaccess. I used ipaccess-config to set the Unit-ID of the nanoBTS and also the Primary OML IP address. Everything worked OK and OpenBSC and the nanoBTS where communicating. My problem now is that I want to connect the nanoBTS back to my original BSC (from Zynetix). By using ipaccess-config I set the OML IP address back to what it was originally but the unit does not connect to the original BSC. I have two other nanoBTS's and their Unit-ID is 65535/255/255 before they 'sign up' to the BSC, where they get another Unit-ID. I've tried using ipaccess-config to set the Unit-ID to that value but get an error: "Failure to set attribute. This seems fatal" Does anyone know how I can reset the Unit-ID to 65535/255/255 ? Best regards, Bjarni S. Sigurdsson

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RSL "Channel Release" Sequence
by Holger Freyther 04 Feb '10

04 Feb '10

Hi, I'm currently implementing Early Assignment in the On Waves branch and as part of this I will have to take care of RSL channel releases as well. Someone else was pointing this out as well but I could not find the email. Our channel release is a bit sloppy and I will fix it and start using T3111 and T3109 in the rsl code for doing so. In the "normal" case (bsc on the left, bts on the right): RSL Channel Release --> <- RSL Channel Release Ack <- Release Indication SAPI=0 RSL Channel Release -> <- RSL Channel Release Ack In the "abnormal" case: <- Error Indication RSL Channel Release -> <- RSL Channel Release Ack <- Release Indication SAPI=0 RSL Channel Release -> <- RSL Channel Release Ack I'm going to change that into the following way. "normal" case: 1.) Release the established SAPIs 2.) After their ACKs release the Channel Have all this guarded by T3109 (or whatever is more appropriate) "abnormal" case: 1.) Start T3109 2.) Then do the normal case. During the shutdown sequence I need to make sure that we are not allocating the channel again. I'm thinking of either using the chan mode Harald was introducing while doing the hand over work, or just a "locked" flag to not assign the channel. I hope to be done with this by tomorrow or the day after, anyone has comments or ideas on how to approach this? z.

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Problem after create-trx1, query gives no info about it.
by till 04 Feb '10

04 Feb '10

Hi, i have problems bringing up the second TRX. I used the following procedure: ./bs11_config -p /dev/ttyUSB0 disconnect ./bs11_config -p /dev/ttyUSB0 create-trx1 After reboot the query tells me: ./bs11_config -p /dev/ttyUSB0 query LMT LOGON: ACK PHASE: 3 Normal MBCCU0: Load MBCCU1: Load Abis-link: Restoring ... BS11 Power Amplifier 0 ATTRIBUTES: TRX Power: 30mW (GSM) LMT LOGOFF: ACK Now i wondered where is the trx1, did anyone has a similar problem? I have the BS-11 ESN PCB Serial Number: 001127 which should have two TRX. Greets & thx Till -- Jetzt kostenlos herunterladen: Internet Explorer 8 und Mozilla Firefox 3.5 - sicherer, schneller und einfacher! http://portal.gmx.net/de/go/chbrowser

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USSD traces from live networks needed
by Alexander Chemeris 27 Jan '10

27 Jan '10

Hi all, I'm cross-posting this to both OpenBTS and OpenBSC mailing lists in a hope to get wider audience. Sorry if you get this message twice. Ivan and I are working on USSD support for OpenBTS now. We've got all our test phones working except old Siemens A52 (newer A65 is ok). When we request more information from the phone in order to create menu-like experience, this phone deny processing any further USSD with "NOT EXECUTED" error, while still keeping L3 channel open. This looks quite much like a bug in the phone, but also seems we have a problem in our code too - I tested it with my working SIM card and my normal operator USSD menu and it works. So I kindly ask everyone who have Nokia 3310 with MBUS cable or any other GSM sniffer and have access to live network with working USSD to help us with gathering some real-network data. Please: 1) Call some simple USSD request, which just return a single piece of data. Like "Show my balance" 2) Call some menu-like USSD request and go through several levels of it. On our network we have a kind of "Self-care service" through USSD which works that way. 3) If you know how to summon network-originated USSD request or notification - we will appreciate if you include this too. I have never seen this on my home network, though. 4) Send me your trace. Thanks! -- Regards, Alexander Chemeris.

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