From domi at tomcsanyi.net Wed Feb 12 08:42:42 2020 From: domi at tomcsanyi.net (=?utf-8?Q?Tomcs=C3=A1nyi=2C?= Domonkos) Date: Wed, 12 Feb 2020 09:42:42 +0100 (CET) Subject: Commercial MSs do not see the network Message-ID: <1173831489.16471.1581496962005.JavaMail.zimbra@tomcsanyi.net> Hi All, I have been dealing with a weird issue in the past couple of days. I needed to quickly check something about some phones, therefore I created an Osmocom CNI based 2G network. I have done this multiple times in the past even with OsmocomBB transceiver, however in the past some years I was not active in 2G, was more focused on 4G. I was very happy to see, that all familiar things I initially liked about osmocom are still in place/improved a lot (meaningful config files, simple VTY interface, a LOT more and better documentation). So the network is up and running fine, the setup consists of a laptop and a USRP B210 without GPSDO. Then I tried to attach some phones to it, and hit an issue: * Samsung S6, S7 - does not detect the network, even if I put in a SIM card that has previously been in a phone that was already attached * iPhone X - does not detect the network I first fiddled with the power settings, basically trying to turn it down a little bit (initially tx attenuation was at 0, so I turned it 10-20), because range is not needed, but I know distortion can happen when driving SDR HW to its max capacity. No change in the above. Then I turned quickly to gr-gsm and rtl-sdr to see if I'm transmitting properly, the network was detected and C0 decoded properly. Next I tried with a Motorola C115 (yeah, I still have some lying around :)), and it attached to the network without any issue. Finally something that works as expected, right? Last but not least I tried with a Nokia 4.2 phone, which also attached to the network immediately without any issue. So the bottom line is: what could cause this behavior? Is it possible that the USRP B210's accuracy is just not enough for newer phones? If yes how come the Nokia still attached, it is quite a recent phone with Qcomm chipset. I was also thinking if it is a Samsung vs Qualcomm thing, but then the iPhone should have at least detected the network. I tried with different SIM cards as well (not that it would make any difference...but I didn't have any better idea), and also with different bands and ARFCNs (900 and 1800). Antenna used is a VERT900. Configuration: unmodified standard config that came with the binary packages - except for MCC, MNC, rx gain, tx attenuation and max_power_red. I also tried to specify valid and also 'invalid' (unknown) MCC-MNC combinations to see if maybe newer Android/iOS only lists networks that advertise a known combination (again this would be very weird, but I just had no better ideas in the end). Anybody have any recent experience with COTS MSs and OsmoBTS(-TRX) based network? Any input is much appreciated, thanks. Cheers, Domi p.s. It is simply awesome to experience the power of opensource when dealing with 2G. Every step of the way above I was using software created and shared by you guys. It is a great feeling, had to share it :-). From nhofmeyr at sysmocom.de Wed Feb 12 12:10:16 2020 From: nhofmeyr at sysmocom.de (Neels Hofmeyr) Date: Wed, 12 Feb 2020 13:10:16 +0100 Subject: Commercial MSs do not see the network In-Reply-To: <1173831489.16471.1581496962005.JavaMail.zimbra@tomcsanyi.net> References: <1173831489.16471.1581496962005.JavaMail.zimbra@tomcsanyi.net> Message-ID: <20200212121016.GC8309@my.box> On Wed, Feb 12, 2020 at 09:42:42AM +0100, Tomcs?nyi, Domonkos wrote: > p.s. It is simply awesome to experience the power of opensource when dealing with 2G. Every step of the way above I was using software created and shared by you guys. It is a great feeling, had to share it :-). Thanks Domi!! I hope someone has answers your questions, I don't but wanted to wave back anyway \o_ ~N -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 833 bytes Desc: not available URL: From djks74 at gmail.com Wed Feb 12 13:20:11 2020 From: djks74 at gmail.com (Sandi Suhendro) Date: Wed, 12 Feb 2020 20:20:11 +0700 Subject: Commercial MSs do not see the network In-Reply-To: <20200212121016.GC8309@my.box> References: <1173831489.16471.1581496962005.JavaMail.zimbra@tomcsanyi.net> <20200212121016.GC8309@my.box> Message-ID: Dear Tomi, have you try to set attenuation set to OML and osmo-trx? osmotrx rx-gain 30 osmotrx tx-attenuation oml Im not sure but I saw your attenuation is set. :-) I think I face the problem before but using Motorola C115/117 cannot connect, but it was resolved now long time ago with newer osmo-bts. regards, Sandi On Wed, Feb 12, 2020 at 7:10 PM Neels Hofmeyr wrote: > On Wed, Feb 12, 2020 at 09:42:42AM +0100, Tomcs?nyi, Domonkos wrote: > > p.s. It is simply awesome to experience the power of opensource when > dealing with 2G. Every step of the way above I was using software created > and shared by you guys. It is a great feeling, had to share it :-). > > Thanks Domi!! > I hope someone has answers your questions, I don't but wanted to wave back > anyway \o_ > > ~N > -- Best Regards, Sandi -------------- next part -------------- An HTML attachment was scrubbed... URL: From radiarisainanasitraka at yahoo.fr Wed Feb 12 19:12:17 2020 From: radiarisainanasitraka at yahoo.fr (Radiarisainana Sitraka) Date: Wed, 12 Feb 2020 19:12:17 +0000 (UTC) Subject: CBS + Osmocom + LimeSDR-Mini References: <647375309.3679103.1581534737485.ref@mail.yahoo.com> Message-ID: <647375309.3679103.1581534737485@mail.yahoo.com> Hello, I'm testing CBS LimeSDR-Mini with osmocom by following this Version 10 - History - Cell Broadcast - Cellular Network Infrastructure - Open Source Mobile Communications | | | | Version 10 - History - Cell Broadcast - Cellular Network Infrastructure ... Redmine | | | h4. make sure your related BTS is configured to use a channel combination with CBCH For using a combined CCCH with SDCCH/4 and CBCH you can use the following example snippet as part of osmo-bsc.cfg: network bts 0 trx 0 timeslot 0 phys_chan_config CCCH+SDCCH4+CBCH -------------- next part -------------- An HTML attachment was scrubbed... URL: From radiarisainanasitraka at yahoo.fr Wed Feb 12 19:15:52 2020 From: radiarisainanasitraka at yahoo.fr (Radiarisainana Sitraka) Date: Wed, 12 Feb 2020 19:15:52 +0000 (UTC) Subject: CBS + ETWS + CMAS + Limesdrmini References: <1096509901.3658822.1581534952916.ref@mail.yahoo.com> Message-ID: <1096509901.3658822.1581534952916@mail.yahoo.com> Hi, I follow this tutorial : Version 10 - History - Cell Broadcast - Cellular Network Infrastructure - Open Source Mobile Communications for doing CBS with limesdrmini but it doesn't run , is it due to that limesdrmini doesn't support the command telnet to osmo-bsc at port 4242, and enter something likeor i do something wrong. Chears, | | | | Version 10 - History - Cell Broadcast - Cellular Network Infrastructure ... Redmine | | | ? -------------- next part -------------- An HTML attachment was scrubbed... URL: From domi at tomcsanyi.net Wed Feb 12 19:15:56 2020 From: domi at tomcsanyi.net (=?utf-8?B?VG9tY3PDoW55aSwgRG9tb25rb3M=?=) Date: Wed, 12 Feb 2020 20:15:56 +0100 (CET) Subject: Commercial MSs do not see the network In-Reply-To: References: Message-ID: <4C8690C1-F026-4011-93FA-E7D8851A4B8C@tomcsanyi.net> Hello Sandi and Neels, @Neels: :-) \o thanks. @Sandi: Thank you for the idea. I have changed the attenuation to oml, and I could observe the following: All Qcomm based devices now see the network and with a bit of luck they could register: Xiaomi Mi5, Samsung A90 5G, iPhone X. However any Exynos based device (S6, S7, S8) simply refuses to even detect the network. Any time I put in a sysmocom SIM in a Qcomm based device it happily goes on the new network. On the other hand if the same SIM card is plugged into an Exynos device it shows No service and even with manual search it cannot detect the network. I assume with other radio hardware (e.g. umTRX) there are no issues with Exynos devices, so it is most probably the USRP not being good enough I think. However if anybody has any other ideas I?d still be happy to get any feedback and try things out :). Cheers, Domi > 2020. febr. 12. d?tummal, 14:20 id?pontban Sandi Suhendro ?rta: > > ? > Dear Tomi, > have you try to set attenuation set to OML and osmo-trx? > > osmotrx rx-gain 30 > osmotrx tx-attenuation oml > > Im not sure but I saw your attenuation is set. :-) > > I think I face the problem before but using Motorola C115/117 cannot connect, but it was resolved now long time ago with newer osmo-bts. > > regards, > Sandi > >> On Wed, Feb 12, 2020 at 7:10 PM Neels Hofmeyr wrote: >> On Wed, Feb 12, 2020 at 09:42:42AM +0100, Tomcs?nyi, Domonkos wrote: >> > p.s. It is simply awesome to experience the power of opensource when dealing with 2G. Every step of the way above I was using software created and shared by you guys. It is a great feeling, had to share it :-). >> >> Thanks Domi!! >> I hope someone has answers your questions, I don't but wanted to wave back >> anyway \o_ >> >> ~N > > > -- > Best Regards, > Sandi > -------------- next part -------------- An HTML attachment was scrubbed... URL: From jsteiger at sysmocom.de Wed Feb 12 20:36:48 2020 From: jsteiger at sysmocom.de (Joachim Steiger) Date: Wed, 12 Feb 2020 21:36:48 +0100 Subject: Commercial MSs do not see the network In-Reply-To: <4C8690C1-F026-4011-93FA-E7D8851A4B8C@tomcsanyi.net> References: <4C8690C1-F026-4011-93FA-E7D8851A4B8C@tomcsanyi.net> Message-ID: <04ed67fd-f62a-a849-9ec4-abdd64c3dc57@sysmocom.de> hi, On 2/12/20 8:15 PM, Tomcs?nyi, Domonkos wrote: [...] > I assume with other radio hardware (e.g. umTRX) there are no issues with Exynos devices, so it is most probably the USRP not being good enough I think. i regulary use a b200/b210 series for tests, so i am quite sure it works when using a known good clock. try sending a external clock to the device, for example a 10MHz gpsdo or another source which you can trust. sometimes even old lab equipment can be used as a source when it has a reference clock output (typically bnc). enable using it by adding to your osmo-trx.cfg: trx clock-ref external the internal clock generation on generic sdr boards (which are not targeted at gsm/tdma systems) are often not precise enough. this is true for the basic usrp series as well as simple boards like the limesdr mini or usb(which you also can feed a clock). in contrast: the limenet micro has a gpsdo on board for exactly this reason. the same is true for boards like the UmTRX, or when you add an precision source to a usrp. i think there is a module to add gps for the usrp. > However if anybody has any other ideas I?d still be happy to get any feedback and try things out :). > > Cheers, > > Domi i hope this gets it working for you. kind regards. -- - Joachim Steiger 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 Directors: Harald Welte From djks74 at gmail.com Thu Feb 13 01:10:47 2020 From: djks74 at gmail.com (Sandi Suhendro) Date: Thu, 13 Feb 2020 08:10:47 +0700 Subject: Commercial MSs do not see the network In-Reply-To: <4C8690C1-F026-4011-93FA-E7D8851A4B8C@tomcsanyi.net> References: <4C8690C1-F026-4011-93FA-E7D8851A4B8C@tomcsanyi.net> Message-ID: Hi Domi, Sorry for wrong spell. Wkwkk... Have you try with GPSDO? Some phone cannot sync or weak with the wave. Worth to try :) regards, Sandi / DUO On Thu, Feb 13, 2020, 02:16 Tomcs?nyi, Domonkos wrote: > Hello Sandi and Neels, > > @Neels: :-) \o thanks. > > @Sandi: > Thank you for the idea. I have changed the attenuation to oml, and I could > observe the following: > All Qcomm based devices now see the network and with a bit of luck they > could register: Xiaomi Mi5, Samsung A90 5G, iPhone X. > However any Exynos based device (S6, S7, S8) simply refuses to even detect > the network. Any time I put in a sysmocom SIM in a Qcomm based device it > happily goes on the new network. On the other hand if the same SIM card is > plugged into an Exynos device it shows No service and even with manual > search it cannot detect the network. > > I assume with other radio hardware (e.g. umTRX) there are no issues with > Exynos devices, so it is most probably the USRP not being good enough I > think. > > However if anybody has any other ideas I?d still be happy to get any > feedback and try things out :). > > Cheers, > > Domi > > > 2020. febr. 12. d?tummal, 14:20 id?pontban Sandi Suhendro < > djks74 at gmail.com> ?rta: > > ? > Dear Tomi, > have you try to set attenuation set to OML and osmo-trx? > > osmotrx rx-gain 30 > osmotrx tx-attenuation oml > > Im not sure but I saw your attenuation is set. :-) > > I think I face the problem before but using Motorola C115/117 cannot > connect, but it was resolved now long time ago with newer osmo-bts. > > regards, > Sandi > > On Wed, Feb 12, 2020 at 7:10 PM Neels Hofmeyr > wrote: > >> On Wed, Feb 12, 2020 at 09:42:42AM +0100, Tomcs?nyi, Domonkos wrote: >> > p.s. It is simply awesome to experience the power of opensource when >> dealing with 2G. Every step of the way above I was using software created >> and shared by you guys. It is a great feeling, had to share it :-). >> >> Thanks Domi!! >> I hope someone has answers your questions, I don't but wanted to wave back >> anyway \o_ >> >> ~N >> > > > -- > Best Regards, > Sandi > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From radiarisainanasitraka at yahoo.fr Thu Feb 13 03:38:05 2020 From: radiarisainanasitraka at yahoo.fr (Radiarisainana Sitraka) Date: Thu, 13 Feb 2020 03:38:05 +0000 (UTC) Subject: OpenBSC Digest, Vol 64, Issue 2 In-Reply-To: References: Message-ID: <458118752.3839429.1581565085990@mail.yahoo.com> The commercial MS see the network and i could send sms and call with it. the Limesdrmini doesn't support CBS? Le mercredi 12 f?vrier 2020 ? 20:57:52 UTC, openbsc-request at lists.osmocom.org a ?crit : Send OpenBSC mailing list submissions to ??? openbsc at lists.osmocom.org To subscribe or unsubscribe via the World Wide Web, visit ??? https://lists.osmocom.org/mailman/listinfo/openbsc or, via email, send a message with subject or body 'help' to ??? openbsc-request at lists.osmocom.org You can reach the person managing the list at ??? openbsc-owner at lists.osmocom.org When replying, please edit your Subject line so it is more specific than "Re: Contents of OpenBSC digest..." Today's Topics: ? 1. CBS + Osmocom + LimeSDR-Mini (Radiarisainana Sitraka) ? 2. CBS + ETWS + CMAS + Limesdrmini (Radiarisainana Sitraka) ? 3. Re: Commercial MSs do not see the network (Tomcs?nyi) ? 4. Re: Commercial MSs do not see the network (Joachim Steiger) ---------------------------------------------------------------------- Message: 1 Date: Wed, 12 Feb 2020 19:12:17 +0000 (UTC) From: Radiarisainana Sitraka To: "openbsc at lists.osmocom.org" Subject: CBS + Osmocom + LimeSDR-Mini Message-ID: <647375309.3679103.1581534737485 at mail.yahoo.com> Content-Type: text/plain; charset="utf-8" Hello, I'm testing CBS LimeSDR-Mini with osmocom by following this Version 10 - History - Cell Broadcast - Cellular Network Infrastructure - Open Source Mobile Communications | | |? | Version 10 - History - Cell Broadcast - Cellular Network Infrastructure ... Redmine | | | h4. make sure your related BTS is configured to use a channel combination with CBCH For using a combined CCCH with SDCCH/4 and CBCH you can use the following example snippet as part of osmo-bsc.cfg: ? ? network? bts 0? trx 0? ? timeslot 0? ? phys_chan_config CCCH+SDCCH4+CBCH -------------- next part -------------- An HTML attachment was scrubbed... URL: ------------------------------ Message: 2 Date: Wed, 12 Feb 2020 19:15:52 +0000 (UTC) From: Radiarisainana Sitraka To: "openbsc at lists.osmocom.org" Subject: CBS + ETWS + CMAS + Limesdrmini Message-ID: <1096509901.3658822.1581534952916 at mail.yahoo.com> Content-Type: text/plain; charset="utf-8" Hi, I follow this tutorial : Version 10 - History - Cell Broadcast - Cellular Network Infrastructure - Open Source Mobile Communications for doing CBS with limesdrmini but it doesn't run , is it due to that limesdrmini doesn't support the command telnet to osmo-bsc at port 4242, and enter something likeor i do something wrong. Chears, | | |? | Version 10 - History - Cell Broadcast - Cellular Network Infrastructure ... Redmine | | | ? -------------- next part -------------- An HTML attachment was scrubbed... URL: ------------------------------ Message: 3 Date: Wed, 12 Feb 2020 20:15:56 +0100 (CET) From: Tomcs?nyi, Domonkos To: Sandi Suhendro Cc: Neels Hofmeyr , openbsc ??? Subject: Re: Commercial MSs do not see the network Message-ID: <4C8690C1-F026-4011-93FA-E7D8851A4B8C at tomcsanyi.net> Content-Type: text/plain; charset="utf-8" Hello Sandi and Neels, @Neels: :-) \o thanks. @Sandi: Thank you for the idea. I have changed the attenuation to oml, and I could observe the following: All Qcomm based devices now see the network and with a bit of luck they could register: Xiaomi Mi5, Samsung A90 5G, iPhone X. However any Exynos based device (S6, S7, S8) simply refuses to even detect the network. Any time I put in a sysmocom SIM in a Qcomm based device it happily goes on the new network. On the other hand if the same SIM card is plugged into an Exynos device it shows No service and even with manual search it cannot detect the network. I assume with other radio hardware (e.g. umTRX) there are no issues with Exynos devices, so it is most probably the USRP not being good enough I think. However if anybody has any other ideas I?d still be happy to get any feedback and try things out :). Cheers, Domi > 2020. febr. 12. d?tummal, 14:20 id?pontban Sandi Suhendro ?rta: > > ? > Dear Tomi, > have you try to set attenuation set to OML and osmo-trx? > >? osmotrx rx-gain 30 >? osmotrx tx-attenuation oml > > Im not sure but I saw your attenuation is set. :-) > > I think I face the problem before but using Motorola C115/117 cannot connect, but it was resolved now long time ago with newer osmo-bts. > > regards, > Sandi > >> On Wed, Feb 12, 2020 at 7:10 PM Neels Hofmeyr wrote: >> On Wed, Feb 12, 2020 at 09:42:42AM +0100, Tomcs?nyi, Domonkos wrote: >> > p.s. It is simply awesome to experience the power of opensource when dealing with 2G. Every step of the way above I was using software created and shared by you guys. It is a great feeling, had to share it :-). >> >> Thanks Domi!! >> I hope someone has answers your questions, I don't but wanted to wave back >> anyway \o_ >> >> ~N > > > -- > Best Regards, > Sandi > -------------- next part -------------- An HTML attachment was scrubbed... URL: ------------------------------ Message: 4 Date: Wed, 12 Feb 2020 21:36:48 +0100 From: Joachim Steiger To: Tomcs?nyi, Domonkos , Sandi Suhendro ??? Cc: openbsc Subject: Re: Commercial MSs do not see the network Message-ID: <04ed67fd-f62a-a849-9ec4-abdd64c3dc57 at sysmocom.de> Content-Type: text/plain; charset=utf-8 hi, On 2/12/20 8:15 PM, Tomcs?nyi, Domonkos wrote: [...] > I assume with other radio hardware (e.g. umTRX) there are no issues with Exynos devices, so it is most probably the USRP not being good enough I think. i regulary use a b200/b210 series for tests, so i am quite sure it works when using a known good clock. try sending a external clock to the device, for example a 10MHz gpsdo or another source which you can trust. sometimes even old lab equipment can be used as a source when it has a reference clock output (typically bnc). enable using it by adding to your osmo-trx.cfg: trx clock-ref external the internal clock generation on generic sdr boards (which are not targeted at gsm/tdma systems) are often not precise enough. this is true for the basic usrp series as well as simple boards like the limesdr mini or usb(which you also can feed a clock). in contrast: the limenet micro has a gpsdo on board for exactly this reason. the same is true for boards like the UmTRX, or when you add an precision source to a usrp. i think there is a? module to add gps for the usrp. > However if anybody has any other ideas I?d still be happy to get any feedback and try things out :). > > Cheers, > > Domi i hope this gets it working for you. kind regards. -- - Joachim Steiger ? ? ? 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 Directors: Harald Welte ------------------------------ Subject: Digest Footer _______________________________________________ OpenBSC mailing list OpenBSC at lists.osmocom.org https://lists.osmocom.org/mailman/listinfo/openbsc ------------------------------ End of OpenBSC Digest, Vol 64, Issue 2 ************************************** -------------- next part -------------- An HTML attachment was scrubbed... URL: From domi at tomcsanyi.net Thu Feb 13 09:07:24 2020 From: domi at tomcsanyi.net (=?utf-8?B?VG9tY3PDoW55aSwgRG9tb25rb3M=?=) Date: Thu, 13 Feb 2020 10:07:24 +0100 (CET) Subject: Commercial MSs do not see the network In-Reply-To: References: Message-ID: <50290C44-8CAE-492A-B775-AF74F60FE298@tomcsanyi.net> Hi Sandi and Joachim, @Sandi: no worries about spelling :). @both: thanks for the idea, it is what I was thinking about initially as well. I will check if I can get a good 10 MHz reference from some device. I was just informed however that Exynos devices do not need to be examined during my tests, so I?ll probably put this on hold for now. The lab at our HQ also has a UmTRX if I recall correctly, so worst case I could always ask them to do the tests. I just wanted to make sure it is the HW setup, not the config causing the trouble :). Now I?m confident that it is the lack of the clock source. Thank you all for chiming in. Cheers, Domi > 2020. febr. 13. d?tummal, 2:11 id?pontban Sandi Suhendro ?rta: > > ? > Hi Domi, > Sorry for wrong spell. Wkwkk... > > Have you try with GPSDO? > > Some phone cannot sync or weak with the wave. Worth to try :) > > regards, > Sandi / DUO > >> On Thu, Feb 13, 2020, 02:16 Tomcs?nyi, Domonkos wrote: >> Hello Sandi and Neels, >> >> @Neels: :-) \o thanks. >> >> @Sandi: >> Thank you for the idea. I have changed the attenuation to oml, and I could observe the following: >> All Qcomm based devices now see the network and with a bit of luck they could register: Xiaomi Mi5, Samsung A90 5G, iPhone X. >> However any Exynos based device (S6, S7, S8) simply refuses to even detect the network. Any time I put in a sysmocom SIM in a Qcomm based device it happily goes on the new network. On the other hand if the same SIM card is plugged into an Exynos device it shows No service and even with manual search it cannot detect the network. >> >> I assume with other radio hardware (e.g. umTRX) there are no issues with Exynos devices, so it is most probably the USRP not being good enough I think. >> >> However if anybody has any other ideas I?d still be happy to get any feedback and try things out :). >> >> Cheers, >> >> Domi >> >> >>> 2020. febr. 12. d?tummal, 14:20 id?pontban Sandi Suhendro ?rta: >>> >>> ? >>> Dear Tomi, >>> have you try to set attenuation set to OML and osmo-trx? >>> >>> osmotrx rx-gain 30 >>> osmotrx tx-attenuation oml >>> >>> Im not sure but I saw your attenuation is set. :-) >>> >>> I think I face the problem before but using Motorola C115/117 cannot connect, but it was resolved now long time ago with newer osmo-bts. >>> >>> regards, >>> Sandi >>> >>>> On Wed, Feb 12, 2020 at 7:10 PM Neels Hofmeyr wrote: >>>> On Wed, Feb 12, 2020 at 09:42:42AM +0100, Tomcs?nyi, Domonkos wrote: >>>> > p.s. It is simply awesome to experience the power of opensource when dealing with 2G. Every step of the way above I was using software created and shared by you guys. It is a great feeling, had to share it :-). >>>> >>>> Thanks Domi!! >>>> I hope someone has answers your questions, I don't but wanted to wave back >>>> anyway \o_ >>>> >>>> ~N >>> >>> >>> -- >>> Best Regards, >>> Sandi >>> -------------- next part -------------- An HTML attachment was scrubbed... URL: From laforge at osmocom.org Thu Feb 13 09:34:02 2020 From: laforge at osmocom.org (Harald Welte) Date: Thu, 13 Feb 2020 10:34:02 +0100 Subject: CBS + ETWS + CMAS + Limesdrmini In-Reply-To: <1096509901.3658822.1581534952916@mail.yahoo.com> References: <1096509901.3658822.1581534952916.ref@mail.yahoo.com> <1096509901.3658822.1581534952916@mail.yahoo.com> Message-ID: <20200213093402.GE818723@nataraja> Dear Radiarisainana, On Wed, Feb 12, 2020 at 07:15:52PM +0000, Radiarisainana Sitraka wrote: > I follow this tutorial : Version 10 - History - Cell Broadcast - Cellular Network Infrastructure - Open Source Mobile Communications for doing CBS with limesdrmini but it doesn't run , is it due to that limesdrmini doesn't support the command telnet to osmo-bsc at port 4242, and enter something likeor i do something wrong. Where is your text log output? Where are your protocol traces? Where are the exact version numbers of the relevant software components you used? Also "Version 10 - History - Cell Broadcast - Cellular Network Infrastructure - Open Source Mobile Communications" is not a "tutorial". If you are referring to a very specific page in the osmocom wiki, then please at least include a hyperlink to that page, so we know which exact instructions you tried to use. Please observe some very basic rules about reporting issues if you would like to enable others to help you. Otherwise it will be impossible for anyone to provide any reasonable response. Also, I fail to see the relevance of the hardware you use. Why would you think that there is anything inside the SDR hardware that affects a feature many layers above? It's like saying "With a Realtec Ethernet card you cannot use Firefox, only Chrome". Regards, Harald -- - Harald Welte http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6) From ralph at schmid.xxx Fri Feb 14 08:01:05 2020 From: ralph at schmid.xxx (Ralph A. Schmid, dk5ras) Date: Fri, 14 Feb 2020 09:01:05 +0100 Subject: Commercial MSs do not see the network In-Reply-To: <50290C44-8CAE-492A-B775-AF74F60FE298@tomcsanyi.net> References: <50290C44-8CAE-492A-B775-AF74F60FE298@tomcsanyi.net> Message-ID: <006701d5e30c$e87ee280$b97ca780$@schmid.xxx> Another thing, usually even a bad clock is OK, when the phone can?t see any commercial network. Quite often they sync their clock on some commercial carrier on power-up and then can?t see any networks with bigger frequency offset. My solution is placing the phone in a metal cookie box that shields it from receiving any commercial network, but the SDR right next to it has enough power to get through. Then the phone starts a more exhaustive search with sweeping its TCXO over a bigger range. Once the phone has registered I take it out, and it keeps the connection without issues until phone or BS are restarted, then the same issue applies. Ralph. From: OpenBSC [mailto:openbsc-bounces at lists.osmocom.org] On Behalf Of Tomcs?nyi, Domonkos Sent: Thursday, February 13, 2020 10:07 AM To: Sandi Suhendro Cc: openbsc Subject: Re: Commercial MSs do not see the network Hi Sandi and Joachim, @Sandi: no worries about spelling :). @both: thanks for the idea, it is what I was thinking about initially as well. I will check if I can get a good 10 MHz reference from some device. I was just informed however that Exynos devices do not need to be examined during my tests, so I?ll probably put this on hold for now. The lab at our HQ also has a UmTRX if I recall correctly, so worst case I could always ask them to do the tests. I just wanted to make sure it is the HW setup, not the config causing the trouble :). Now I?m confident that it is the lack of the clock source. Thank you all for chiming in. Cheers, Domi 2020. febr. 13. d?tummal, 2:11 id?pontban Sandi Suhendro > ?rta: ? Hi Domi, Sorry for wrong spell. Wkwkk... Have you try with GPSDO? Some phone cannot sync or weak with the wave. Worth to try :) regards, Sandi / DUO On Thu, Feb 13, 2020, 02:16 Tomcs?nyi, Domonkos > wrote: Hello Sandi and Neels, @Neels: :-) \o thanks. @Sandi: Thank you for the idea. I have changed the attenuation to oml, and I could observe the following: All Qcomm based devices now see the network and with a bit of luck they could register: Xiaomi Mi5, Samsung A90 5G, iPhone X. However any Exynos based device (S6, S7, S8) simply refuses to even detect the network. Any time I put in a sysmocom SIM in a Qcomm based device it happily goes on the new network. On the other hand if the same SIM card is plugged into an Exynos device it shows No service and even with manual search it cannot detect the network. I assume with other radio hardware (e.g. umTRX) there are no issues with Exynos devices, so it is most probably the USRP not being good enough I think. However if anybody has any other ideas I?d still be happy to get any feedback and try things out :). Cheers, Domi 2020. febr. 12. d?tummal, 14:20 id?pontban Sandi Suhendro > ?rta: ? Dear Tomi, have you try to set attenuation set to OML and osmo-trx? osmotrx rx-gain 30 osmotrx tx-attenuation oml Im not sure but I saw your attenuation is set. :-) I think I face the problem before but using Motorola C115/117 cannot connect, but it was resolved now long time ago with newer osmo-bts. regards, Sandi On Wed, Feb 12, 2020 at 7:10 PM Neels Hofmeyr > wrote: On Wed, Feb 12, 2020 at 09:42:42AM +0100, Tomcs?nyi, Domonkos wrote: > p.s. It is simply awesome to experience the power of opensource when dealing with 2G. Every step of the way above I was using software created and shared by you guys. It is a great feeling, had to share it :-). Thanks Domi!! I hope someone has answers your questions, I don't but wanted to wave back anyway \o_ ~N -- Best Regards, Sandi -------------- next part -------------- An HTML attachment was scrubbed... URL: From domi at tomcsanyi.net Sun Feb 16 18:26:41 2020 From: domi at tomcsanyi.net (=?utf-8?Q?Tomcs=C3=A1nyi=2C?= Domonkos) Date: Sun, 16 Feb 2020 19:26:41 +0100 (CET) Subject: Commercial MSs do not see the network In-Reply-To: <006701d5e30c$e87ee280$b97ca780$@schmid.xxx> References: <50290C44-8CAE-492A-B775-AF74F60FE298@tomcsanyi.net> <006701d5e30c$e87ee280$b97ca780$@schmid.xxx> Message-ID: <382886419.791.1581877601101.JavaMail.zimbra@tomcsanyi.net> Hello Ralph, Good idea, thank you for the feedback. I'll test this theory as soon as I'm back home next week. It makes a lot of sense to me, so I'm really curious to see if it works in my case as well. Cheers, Domi ----- Original Message ----- > From: "Ralph A. Schmid, dk5ras" > To: "Domonkos Tomcs?nyi" , "Sandi Suhendro" > Cc: "openbsc" > Sent: Friday, February 14, 2020 9:01:05 AM > Subject: RE: Commercial MSs do not see the network > Another thing, usually even a bad clock is OK, when the phone can?t see any > commercial network. Quite often they sync their clock on some commercial > carrier on power-up and then can?t see any networks with bigger frequency > offset. My solution is placing the phone in a metal cookie box that shields it > from receiving any commercial network, but the SDR right next to it has enough > power to get through. Then the phone starts a more exhaustive search with > sweeping its TCXO over a bigger range. Once the phone has registered I take it > out, and it keeps the connection without issues until phone or BS are > restarted, then the same issue applies. > Ralph. > From: OpenBSC [mailto:openbsc-bounces at lists.osmocom.org] On Behalf Of Tomcs?nyi, > Domonkos > Sent: Thursday, February 13, 2020 10:07 AM > To: Sandi Suhendro > Cc: openbsc > Subject: Re: Commercial MSs do not see the network > Hi Sandi and Joachim, > @Sandi: no worries about spelling :). > @both: thanks for the idea, it is what I was thinking about initially as well. > I will check if I can get a good 10 MHz reference from some device. I was just > informed however that Exynos devices do not need to be examined during my > tests, so I?ll probably put this on hold for now. The lab at our HQ also has a > UmTRX if I recall correctly, so worst case I could always ask them to do the > tests. I just wanted to make sure it is the HW setup, not the config causing > the trouble :). Now I?m confident that it is the lack of the clock source. > Thank you all for chiming in. > Cheers, > Domi >> 2020. febr. 13. d?tummal, 2:11 id?pontban Sandi Suhendro < [ >> mailto:djks74 at gmail.com | djks74 at gmail.com ] > ?rta: >> Hi Domi, >> Sorry for wrong spell. Wkwkk... >> Have you try with GPSDO? >> Some phone cannot sync or weak with the wave. Worth to try :) >> regards, >> Sandi / DUO >> On Thu, Feb 13, 2020, 02:16 Tomcs?nyi, Domonkos < [ mailto:domi at tomcsanyi.net | >> domi at tomcsanyi.net ] > wrote: >>> Hello Sandi and Neels, >>> @Neels: :-) \o thanks. >>> @Sandi: >>> Thank you for the idea. I have changed the attenuation to oml, and I could >>> observe the following: >>> All Qcomm based devices now see the network and with a bit of luck they could >>> register: Xiaomi Mi5, Samsung A90 5G, iPhone X. >>> However any Exynos based device (S6, S7, S8) simply refuses to even detect the >>> network. Any time I put in a sysmocom SIM in a Qcomm based device it happily >>> goes on the new network. On the other hand if the same SIM card is plugged into >>> an Exynos device it shows No service and even with manual search it cannot >>> detect the network. >>> I assume with other radio hardware (e.g. umTRX) there are no issues with Exynos >>> devices, so it is most probably the USRP not being good enough I think. >>> However if anybody has any other ideas I?d still be happy to get any feedback >>> and try things out :). >>> Cheers, >>> Domi >>>> 2020. febr. 12. d?tummal, 14:20 id?pontban Sandi Suhendro < [ >>>> mailto:djks74 at gmail.com | djks74 at gmail.com ] > ?rta: >>>> Dear Tomi, >>>> have you try to set attenuation set to OML and osmo-trx? >>>> osmotrx rx-gain 30 >>>> osmotrx tx-attenuation oml >>>> Im not sure but I saw your attenuation is set. :-) >>>> I think I face the problem before but using Motorola C115/117 cannot connect, >>>> but it was resolved now long time ago with newer osmo-bts. >>>> regards, >>>> Sandi >>>> On Wed, Feb 12, 2020 at 7:10 PM Neels Hofmeyr < [ mailto:nhofmeyr at sysmocom.de | >>>> nhofmeyr at sysmocom.de ] > wrote: >>>>> On Wed, Feb 12, 2020 at 09:42:42AM +0100, Tomcs?nyi, Domonkos wrote: >>>>>> p.s. It is simply awesome to experience the power of opensource when dealing >>>>>> with 2G. Every step of the way above I was using software created and shared by >>>>> > you guys. It is a great feeling, had to share it :-). >>>>> Thanks Domi!! >>>>> I hope someone has answers your questions, I don't but wanted to wave back >>>>> anyway \o_ >>>>> ~N >>>> -- >>>> Best Regards, >>>> Sandi From laforge at gnumonks.org Wed Feb 26 21:43:58 2020 From: laforge at gnumonks.org (Harald Welte) Date: Wed, 26 Feb 2020 22:43:58 +0100 Subject: D-GSM merge / open question on GT vs. IPA name Message-ID: <20200226214358.GA34020@nataraja> Hi Neels, some week[s] ago, you mentioned that the D-GSM merge is blocked around the question on how the Global Title vs. IPA-name is to be resolved. Sorry for not getting back any sooner, but I am simply not finding the required amount of time to investigate this topic at the moment. My personal opinion is that it should be a binary blob (buffer + length) and nobody should make any assumptions about the contents. This way we can store whatever we want in it, and I believe we're increasing possible use cases where our HLR would have to work with "stateless" translators between GSUP and MAP. After all, let's say we receive a LU from a subscriber roaming in MAP-land, then that request arrives with the GT of the MSC/VLR. If we can natively "digest" such values, then the translator would not require any state beyond the currently processed transaction (LU/ISD). If we can not, then the translator would have to keep long-term state such as tables to map MAP-GT to IPA name or the like. And that's of course more effort there, and volatile state that you'd need to synchronize in case of high availability or fail-over scenarios, etc. I of course also know none of this is any current use case that any of the sysmocom customers is funding sysmocom (and hence you) to spend time on. So in the end, I'll leave it to you to decide. If you think the effort for becoming "buffer+length" aware is relatively minimal (let's say up to two days?) then by all means, implement that. If you think it's more work, then please go for the faster route of not considering non-NUL-terminated strings as identifiers for "GSUP" peers. In any case, I am happy to merge the D-GSM patch series once you think it should be merged. I put it in your trusted hands. After all, we had a tagged release only 7 commits ago (well, 5 of those are actually already D-GSM related) in osmo-hlr, and should there be any fall-out from the merge, we still have quite some time until some new tagged release will happen a few months down the road. Thanks! Regards, Harald -- - Harald Welte http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)