[srslte-users] Failed to get Release 10(?) bcch_dlsch messages.

Mon May 30 18:15:22 UTC 2016

ue.log seems to be created but empty. May be it couldn't be flushed.

You can find the *core* file here:
https://drive.google.com/open?id=0B96xxEajM94mZ011Y21Yd1FMNzQ

Thanks,
Enes.

2016-05-30 20:55 GMT+03:00 Ismael Gomez <
ismael.gomez at softwareradiosystems.com>:

> Can you send the dumped core from srsUE and the ue.log file please? Set
> the logging to info for all layers please. Release 10 should be backwards
> compatible with Release 8 so that shouldn't be a problem at all.
>
> On Mon, 30 May 2016 at 19:48 Enes ÜNAL <aenesunal at gmail.com> wrote:
>
>> 
>> Hello,
>>
>> I'm living in Turkey, and there are 3 different operators here. By using
>> srsUE, I successfully got SIB1, SIB2 messages for 2 operator. However, as I
>> discovered the third operator is using LTE Release-10
>>  while 2 of them using Release-9.
>> srsUE is
>>  failed
>> to
>>  get SIB messages for this
>> particular 
>> operator.
>> For every dl_frequencies. Currently the operator have 2 different center
>> frequencies in 2 different band LTE-800 & LTE-1800.
>>
>> You can find tt.cap and tt_sync.cap capture files
>>  in the bottom of this e-mail
>> generated by followings respectively.
>> 
>> #################################################################
>>  "./usrp_capture -f 796000000 -o tt.cap"
>> #################################################################
>> linux; GNU C++ version 5.3.1 20151219; Boost_105800;
>> UHD_003.009.002-0-unknown
>>
>> Opening RF device...
>> -- Detected Device: B200mini
>> -- Operating over USB 3.
>> -- Initialize CODEC control...
>> -- Initialize Radio control...
>> -- Performing register loopback test... pass
>> -- Performing CODEC loopback test... pass
>> -- Asking for clock rate 16.000000 MHz...
>> -- Actually got clock rate 16.000000 MHz.
>> -- Performing timer loopback test... pass
>> -- Setting master clock rate selection to 'automatic'.
>> -- Asking for clock rate 32.000000 MHz...
>> -- Actually got clock rate 32.000000 MHz.
>> -- Performing timer loopback test... pass
>> -- Asking for clock rate 16.000000 MHz...
>> -- Actually got clock rate 16.000000 MHz.
>> -- Performing timer loopback test... pass
>> -- Asking for clock rate 30.720000 MHz...
>> -- Actually got clock rate 30.720000 MHz.
>> -- Performing timer loopback test... pass
>> Set RX freq: 796.00 MHz
>> Set RX gain: 40.00 dB
>> Correctly RX rate: 0.96 MHz
>> ^COk - wrote 777600 samples
>>
>> #################################################################
>> "./usrp_capture_sync -l 279 -f 796000000 -o tt_sync.cap".
>> #################################################################
>>
>> linux; GNU C++ version 5.3.1 20151219; Boost_105800;
>> UHD_003.009.002-0-unknown
>>
>> Opening RF device...
>> -- Detected Device: B200mini
>> -- Operating over USB 3.
>> -- Initialize CODEC control...
>> -- Initialize Radio control...
>> -- Performing register loopback test... pass
>> -- Performing CODEC loopback test... pass
>> -- Asking for clock rate 16.000000 MHz...
>> -- Actually got clock rate 16.000000 MHz.
>> -- Performing timer loopback test... pass
>> -- Setting master clock rate selection to 'automatic'.
>> -- Asking for clock rate 32.000000 MHz...
>> -- Actually got clock rate 32.000000 MHz.
>> -- Performing timer loopback test... pass
>> -- Asking for clock rate 16.000000 MHz...
>> -- Actually got clock rate 16.000000 MHz.
>> -- Performing timer loopback test... pass
>> -- Asking for clock rate 30.720000 MHz...
>> -- Actually got clock rate 30.720000 MHz.
>> -- Performing timer loopback test... pass
>> Set RX freq: 796.000000 MHz
>> Set RX gain: 60.0 dB
>> -- Asking for clock rate 7.680000 MHz...
>> -- Actually got clock rate 7.680000 MHz.
>> -- Performing timer loopback test... pass
>> Setting sampling rate 1.92 MHz
>> Using Volk machine: avx2_64_mmx_orc
>> Ok - wrote 648 subframesubframes.....
>>
>> #################################################################
>> Below you can also find the decoded MIB generated by "pdsch_ue -f
>> 796000000"
>> #################################################################
>>
>> linux; GNU C++ version 5.3.1 20151219; Boost_105800;
>> UHD_003.009.002-0-unknown
>>
>> Opening RF device...
>> -- Detected Device: B200mini
>> -- Operating over USB 3.
>> -- Initialize CODEC control...
>> -- Initialize Radio control...
>> -- Performing register loopback test... pass
>> -- Performing CODEC loopback test... pass
>> -- Asking for clock rate 16.000000 MHz...
>> -- Actually got clock rate 16.000000 MHz.
>> -- Performing timer loopback test... pass
>> -- Setting master clock rate selection to 'automatic'.
>> -- Asking for clock rate 32.000000 MHz...
>> -- Actually got clock rate 32.000000 MHz.
>> -- Performing timer loopback test... pass
>> -- Asking for clock rate 16.000000 MHz...
>> -- Actually got clock rate 16.000000 MHz.
>> -- Performing timer loopback test... pass
>> Starting AGC thread...
>> -- Asking for clock rate 30.720000 MHz...
>> -- Actually got clock rate 30.720000 MHz.
>> -- Performing timer loopback test... pass
>> Tunning receiver to 796.000 MHz
>> Searching for cell...
>> Using Volk machine: avx2_64_mmx_orc
>> *Found Cell_id: 279 CP: Normal  , DetectRatio=100% PSR=17.98, Power=-12.1
>> dBm
>>  Found Cell_id:   0 CP: Normal  , DetectRatio= 0% PSR=0.00, Power=-inf dBm
>>  Found Cell_id:   0 CP: Normal  , DetectRatio= 0% PSR=0.00, Power=-inf dBm
>> Decoding PBCH for cell 279 (N_id_2=0)
>> -- Asking for clock rate 11.520000 MHz...
>> -- Actually got clock rate 11.520000 MHz.
>> -- Performing timer loopback test... pass
>> Setting sampling rate 11.52 MHz
>>  - Cell ID:         279   5.9, FrameCnt: 0, State: 1
>>  - Nof ports:       2
>>  - CP:              Normal
>>  - PRB:             50
>>  - PHICH Length:    Normal
>>  - PHICH Resources: 1/6
>>  - SFN:             1020
>> Decoded MIB. SFN: 1020, offset: 1
>> CFO:  -0.17 kHz, SNR: -nan dB, PDCCH-Miss:  -nan%, PDSCH-BLER:   inf%
>> CFO:  +0.32 kHz, SNR: -nan dB, PDCCH-Miss: 100.00%, PDSCH-BLER: 100.00%
>>
>> #################################################################
>> When I run srsUE with 796MHz DL freq, I got:
>> #################################################################
>>
>> linux; GNU C++ version 5.3.1 20151219; Boost_105800;
>> UHD_003.009.002-0-unknown
>>
>> ---  Software Radio Systems LTE UE  ---
>>
>> Reading configuration file ue.conf...
>> Using srsLTE version 001.002.000
>> -- Detected Device: B200mini
>> -- Operating over USB 3.
>> -- Initialize CODEC control...
>> -- Initialize Radio control...
>> -- Performing register loopback test... pass
>> -- Performing CODEC loopback test... pass
>> -- Asking for clock rate 16.000000 MHz...
>> -- Actually got clock rate 16.000000 MHz.
>> -- Performing timer loopback test... pass
>> -- Setting master clock rate selection to 'automatic'.
>> -- Asking for clock rate 32.000000 MHz...
>> -- Actually got clock rate 32.000000 MHz.
>> -- Performing timer loopback test... pass
>> -- Asking for clock rate 16.000000 MHz...
>> -- Actually got clock rate 16.000000 MHz.
>> -- Performing timer loopback test... pass
>> Setting frequency: DL=796.0 Mhz, UL=837.0 MHz
>> Searching for cell...
>> Using Volk machine: avx2_64_mmx_orc
>> Found CELL ID: 279 CP: Normal  , CFO: -0.1 KHz.
>> Trying to decode MIB...
>>  - Cell ID:         279
>>  - Nof ports:       2
>>  - CP:              Normal
>>  - PRB:             50
>>  - PHICH Length:    Normal
>>  - PHICH Resources: 1/6
>>  - SFN:             0
>> MIB received BW=10 MHz
>> Initializating cell configuration...
>> Setting Sampling frequency 11.52 MHz
>> Segmentation fault (core dumped)
>>
>> #################################################################
>>
>> I debugged UE, and what I found is quite interesting. In the
>> phch_worker.cc:373 (commit 9482eee); while filling MAC grant structure,
>> every time grant->n_bytes is filling as 0 (zero).
>>
>> What may cause this problem? Is there any missing part in the UE?
>>
>> Thanks in advance,
>> Best,
>> Enes.
>>
>> -------------------------
>> tt.cap : https://drive.google.com/open?id=0B96xxEajM94mYklNdmFfMzI3R00
>> tt_sync.cap :
>> https://drive.google.com/open?id=0B96xxEajM94mTWVzeFg3T3RzVG8
>>
>> _______________________________________________
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>> srslte-users at lists.softwareradiosystems.com
>> http://www.softwareradiosystems.com/mailman/listinfo/srslte-users
>>
>
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