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2022 discussions

failed to read sim card
by g.roelant＠telenet.be 21 Oct '12

21 Oct '12

Hi, i'm trying to use osmocom-bb to send sms and make phone call with real sim of provider. i succeeded once in recognizing my pay-and-go sim card. but now i'm not lucky anymore here is wat is on screen: <000f> sim.c:1223 init SIM client <0006> gsm48_cc.c:63 init Call Control <0007> gsm480_ss.c:231 init SS <0017> gsm411_sms.c:63 init SMS <0001> gsm48_rr.c:5479 init Radio Ressource process <0005> gsm48_mm.c:1315 init Mobility Management process <0005> gsm48_mm.c:1037 Selecting PLMN SEARCH state, because no SIM. <0002> gsm322.c:5025 init PLMN process <0003> gsm322.c:5026 init Cell Selection process <0003> gsm322.c:5083 Read stored BA list (mcc=0ce mnc=001 0ce, 001) <0003> gsm322.c:5083 Read stored BA list (mcc=0ce mnc=014 0ce, 014) <0003> gsm322.c:5083 Read stored BA list (mcc=0ce mnc=0x00a 0ce, 0x00a) Mobile '1' initialized, please start phone now! VTY available on port 4247. <0005> subscriber.c:601 Requesting SIM file 0x2fe2 <000f> sim.c:209 got new job: SIM_JOB_READ_BINARY (handle=00000004) <000f> sim.c:697 go MF <000f> sim.c:241 SELECT (file=0x3f00) <000f> sim.c:187 sending APDU (class 0xa0, ins 0xa4) <000f> sim.c:876 received APDU (len=0 sw1=0x00 sw2=0x00) <000f> sim.c:952 command failed <000f> sim.c:151 sending result to callback function (type=1) <0005> subscriber.c:657 SIM reading failed <0005> gsm48_mm.c:4379 (ms 1) Received 'MMR_NREG_REQ' event <0005> gsm48_mm.c:4311 (ms 1) Received 'MM_EVENT_IMSI_DETACH' event in state MM IDLE, PLMN search <0005> gsm48_mm.c:1839 IMSI has been detached. <0005> gsm48_mm.c:1088 Not camping, wait for CS process to camp, it sends us CELL_SELECTED then. <0002> gsm322.c:3917 (ms 1) Event 'EVENT_SIM_REMOVE' for manual PLMN selection in state 'M0 null' <000e> gsm322.c:1614 SIM is removed <0002> gsm322.c:1615 Switch on without SIM. <0002> gsm322.c:814 new state 'M0 null' -> 'M5 no SIM inserted' <0003> gsm322.c:4037 (ms 1) Event 'EVENT_SIM_REMOVE' for Cell selection in state 'C0 null' <0003> gsm322.c:823 new state 'C0 null' -> 'C6 any cell selection' can anyone help?

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Fwd: Open-source telecom T-shirts
by Alexander Chemeris 20 Oct '12

20 Oct '12

Sorry to those who receive this message twice. I hope Osmocom community finds this small effort interesting as well. ---------- Forwarded message ---------- From: Alexander Chemeris <alexander.chemeris(a)gmail.com> Date: Fri, Oct 19, 2012 at 5:15 PM Subject: Open-source telecom T-shirts To: umtrx <umtrx(a)lists.osmocom.org>, openbts-discuss(a)lists.sourceforge.net Hi all, We're thinking about making T-shirts with open-source telecom. I've posted a call for ideas in my OpenBTS blog - please contribute. Telecom needs more openness and you could help us promote this! http://openbts.chemeris.ru/2012/10/reklama-open-source-telecom/ We plan to give them for free to the first 10-20 UmTRX buyers. Then you'll be able to buy them from our web-shop or from one of our friends and distributors. If you proposal gets printed, you'll get a free T-shirt as well. PS If you know a good online T-shirt printing service in US or Europe - drop me a line. I've never done this in US/Europe before. -- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru -- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru

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modulo and frame number in mframe_sched.c
by ☎ 19 Oct '12

19 Oct '12

Hi. In "struct mframe_sched_item" in target/firmware/layer1/mframe_sched.c both 'modulo' and 'frame_nr' defined as uint16_t. This seems like big space waste considering tight memory environment we're working in. On irc it was suggested that the reason for this is either data alignment or safety concerns. Does structure alignment matters in this case? If so - how exactly? Is it possible for 'modulo' to be bigger than 255? Is it possible for 'frame_nr' to be bigger than 255? -- best regards, Max, http://fairwaves.ru

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Bounce action notification
by mailman＠lists.osmocom.org 18 Oct '12

18 Oct '12

This is a Mailman mailing list bounce action notice: List: baseband-devel Member: tianxing(a)timelink.com.hk Action: Subscription disabled. Reason: Excessive or fatal bounces. The triggering bounce notice is attached below. Questions? Contact the Mailman site administrator at mailman(a)lists.osmocom.org.

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SIM900D
by Peter Zotov 17 Oct '12

17 Oct '12

Hello folks. I have this GSM module called SIM900D. It has several interesting capabilites. 1. It has builtin commands AT+SIMEI (guess what it does) and AT*CELLLOCK (ARFCN lock). 2. It, as far as I know, does not check firmware signature. 3. It has an API (called "Embedded AT") which can be called from the customer's module running on the same CPU (ARM926EJS). 4. Non-stripped firmware ELFs are available, together with the descriptions of public API. Here is a (Russian) page with all of the relevant datasheets collected. Datasheets are in English. http://www.mt-system.ru/catalog/dokumentacija-na-gsm-modemy-simcom See also: http://www.geekonfire.com/wiki/index.php?title=GPRS_Shield%EF%BC%88SIM900%E… ftp://ftp.macrogroup.ru/Support/SimCom/Firmware/Sim900/Sim900D -- WBR, Peter Zotov.

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the sync of multiple ccch_scan in burst_ind branch
by bob 13 Oct '12

13 Oct '12

Hello List I am studying to start multiple ccch_scan simultaneously,but I meet some problem. I do as following: 1.I have two C118, caonnect them to the same computer 2.dump the sniffer rom ./osmocon -p /dev/ttyUSB0 -s /tmp/osmocom_l2_0 -m c123xor ./sniffer.bin ./osmocon -p /dev/ttyUSB1 -s /tmp/osmocom_l2_1 -m c123xor ./sniffer.bin 3.start the ccch_scan of burst_ind ./ccch_scan -s /tmp/osmocom_l2_0 -a *** -i 127.0.0.1 ./ccch_scan -s /tmp/osmocom_l2_0 -a *** -i 127.0.0.1 but there is always one ccch_scan give the following output after some time. <0001> app_ccch_scan.c:296 GSM48 IMM ASS (ra=0x99, chan_nr=0x40, HSN=47, MAIO=4, TS=0, SS=0, TSC=2) Unknown SI Unknown SI Unknown SI Unknown SI Unknown SI Unknown SI Unknown SI Unknown SI Unknown SI Unknown SI Unknown SI Unknown SI Unknown SI Unknown SI Unknown SI Unknown SI Unknown SI Unknown SI Unknown SI Unknown SI Unknown SI Unknown SI Unknown SI I think it is an syn problem, maybe caused by the usb bus. does anyone have the idea? thanks! -- View this message in context: http://baseband-devel.722152.n3.nabble.com/the-sync-of-multiple-ccch-scan-i… Sent from the baseband-devel mailing list archive at Nabble.com.

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Oct 3, 8pm / Osmocom Berlin User Group meeting?
by Nico Golde 09 Oct '12

09 Oct '12

Hi all! I *think* Harald is pretty busy and also unlikely to attend prospective meeting tomorrow. Also there is bank holiday tomorrow in Germany and at least I personally will use that to stay away from technology for a bit, so I won't come. Nevertheless, I thought I'd write this email to remind people that in theory there is a meeting tomorrow and discuss if other people attend. I personally would propose to shift the meeting to next week (for purely selfish reasons ;). As far as I know, there is no formal presentation tomorrow. Anyway, will anyone attend tomorrow or is everyone in favor of shifting a week? In case it takes place, for the people who did not attend so far, the usual snippet from Harald's mails: Oct 3, 8pm @ CCC Berlin, Marienstr. 11, 10113 Berlin If you are interested to show up, feel free to do so. There is no registration required. The meeting is free as in "free beer", despite no actual free beer being around. Cheers Nico

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Re: GSM test sets (HP 8922M, for instance..)
by Dieter Spaar 08 Oct '12

08 Oct '12

On Mon, 8 Oct 2012 06:54:06 +0000 (UTC), "John Case" <case(a)SDF.ORG> wrote: > > What about the HP8922P ? Does that also have the spectrum analyzer built > in ? I don't know the various variants of the HP8922. But the sepctrum analyzer is an optional hardware in the unit, it is called "Option 006" for the HP8922M (on my units the option is printed on the serial number label on the back). Best regards, DIeter -- Dieter Spaar, Germany spaar(a)mirider.augusta.de

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Re: GSM test sets (HP 8922M, for instance..)
by Dieter Spaar 08 Oct '12

08 Oct '12

Hello John, On Mon, 8 Oct 2012 05:59:07 +0000 (UTC), "John Case" <case(a)SDF.ORG> wrote: > > So do I understand that by itself, the unit handles 900 and 850, and the > add-on gives it 1800 and 1900 ? The HP8922M can't simulate a GSM-850 network, only GSM-900 (E-GSM is also possible). The optional extension unit adds GSM-1800 and GSM-1900. However it is possible to generate various GSM test signals on the whole frequency range the HP8922M supports (10 MHz to 1000 MHz for the HP8922M alone) which includes GSM-850. This is uselful for Layer-1 development like it was done for OsmocomBB. And as hint: look for a HP8922M which has the optional spectrum analyzer built in, it can be very usefull sometimes. Best regards, Dieter -- Dieter Spaar, Germany spaar(a)mirider.augusta.de

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GSM test sets (HP 8922M, for instance..)
by John Case 08 Oct '12

08 Oct '12

There are a lot of HP/Agilent 8922M units for sale very cheap (less than US $500). I know that these devices can simulate a GSM base station, but does that simulation occur over the air, or do I need to connect my handset I am testing to the 8922M with a cable ? I know I need to get a 8322A expansion for the unit - any other details I should look out for ? Also, what is an equivalent test unit for WCDMA (3g) base station simulation (I know these will be more expensive). Thanks.

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