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Tomcsányi, Domonkos domi at tomcsanyi.netHi, Just a quick thing: to get ABI supported version of UHD do not use the Ettus ppa uhd, but use the one called uhd-lts or something similar. It is compiled with the right ABI version for the gnuradio distro package. Cheers, Domi 2017. szept. 6. dátummal, 17:42 időpontban Adrian Musceac <kantooon at gmail.com> írta: > Hi Vadim, > >> >> In general, trxcon should be able to 'speak' with OsmoTRX, >> because one do use classical transceiver UDP interfaces. But >> there are some CTRL commands, which aren't implemented in OsmoTRX >> yet (such as ECHO and MEASURE). >> > > Yes, I implemented both commands, I can share the code with you. My > problem is that Gnuradio (distro version) is built against an > incompatible ABI version of libuhd, so I have to jump through major > hoops just to get both osmo-trx and gnuradio working. So currently all > my tests are using osmo-trx only. > >> >> The order of bursts should be consistent, I mean frame-by-frame. >> You need to make sure that a frame number from SCH burst is being >> decoded correctly by OsmoTRX. Every burst coming from OsmoTRX >> has a header with frame number, which is used by trxcon to >> determine a current frame position within a multiframe. >> Probably, the problem is due to incorrect / consistent >> frame number values. The internal clock counter (sched_clck.c) >> is only used to schedule the UL bursts transmission. >> > > Yes, the SCH burst has a correct frame number. But the BCCH and CCCH > bursts fail to be decoded. CRC fails in > libosmocore/coding/gsm0503_coding.c > Is your gr-gsm fake-trx able to decode correctly BCCH and CCCH? I > double checked the osmo-trx code and besides some major differences > between the MS branch and master, everything looks correct. > >> >> You can also join the development process, feel free to mail me. >> I will create the wiki page as soon as possible. >> > > Yes, I'd like that, but for now I just want to get BCCH and CCCH > working and the mobile syncing with the BTS. Then I will be able to > test. > > Cheers, > Adrian