[srslte-users] Failed to get Release 10(?) bcch_dlsch messages.
Enes ÜNAL
aenesunal at gmail.com
Mon May 30 18:52:03 UTC 2016
I suppress the segfault and here is the ue.log:
21:49:53.534 [MAC ] Info [00000] Resetting MAC
21:49:53.536 [MAC ] Info [00000] Waiting PHY to synchronize with cell
21:49:54.868 [RLC ] Info BCCH BCH message received.
0000: 61 24 00
21:49:54.868 [RRC ] Info BCCH BCH message received.
0000: 61 24 00
21:49:54.868 [RRC ] Info BCCH BCH message Stack latency: 8 us
21:49:54.868 [RRC ] Info MIB received BW=10 MHz
21:49:59.372 [PHY ] Info [00000] SYNC: Cell found. Synchronizing...
21:49:59.375 [PHY ] Info [00000] SYNC: PSS/SSS not found...
21:49:59.377 [PHY ] Info [00000] SYNC: PSS/SSS not found...
21:49:59.379 [PHY ] Info [00000] SYNC: PSS/SSS not found...
21:49:59.384 [RRC ] Info Detected 1 out-of-sync from PHY. Starting T310
timer
21:49:59.386 [PHY ] Info [00000] SYNC: Decoding MIB...
21:49:59.387 [PHY ] Info [00000] SYNC: DONE, TTI=7440, sfn_offset=0
21:49:59.396 [RRC ] Info Detected 1 in-sync from PHY. Stopping T310 timer
21:49:59.431 [MAC ] Info [00000] SCHED: Searching for DL grant for
SI-RNTI window_st=7505, window_len=1
21:49:59.436 [MAC ] Info [07491] BSR: QUEUE status: 0 (0), 0 (0), 0
(0), 0 (0), 0 (0), 0 (0),
21:49:59.452 [PHY ] Info [07505] PDCCH: DL DCI 1C cce_index=12,
n_data_bits=13, partial_time=1069 us
21:49:59.452 [PHY ] Info [07505] PDSCH: l_crb= 4, harq=0, tbs=0, mcs=0,
rv=1, crc=OK, snr=-4.9 dB, n_iter=0, dec_time= 90 us
21:49:59.452 [RLC ] Info BCCH DLSCH message received.
21:49:59.452 [MAC ] Info [07506] DL 8: newTX tbs=0, rv=1, ack=OK, ndi=0
(0), tti=7505 (0)
21:49:59.541 [MAC ] Info [07596] SCHED: Searching for DL grant for
SI-RNTI window_st=7605, window_len=1
21:49:59.551 [PHY ] Info [07605] PDCCH: DL DCI 1C cce_index= 4,
n_data_bits=13, partial_time= 544 us
21:49:59.551 [PHY ] Info [07605] PDSCH: l_crb= 4, harq=0, tbs=0, mcs=0,
rv=0, crc=OK, snr=-4.9 dB, n_iter=0, dec_time= 46 us
21:49:59.551 [RLC ] Info BCCH DLSCH message received.
21:49:59.552 [MAC ] Info [07606] DL 8: newTX tbs=0, rv=0, ack=OK, ndi=0
(0), tti=7605 (0)
21:49:59.651 [MAC ] Info [07706] SCHED: Searching for DL grant for
SI-RNTI window_st=7725, window_len=1
21:49:59.672 [PHY ] Info [07725] PDCCH: DL DCI 1C cce_index= 4,
n_data_bits=13, partial_time= 817 us
21:49:59.672 [PHY ] Info [07725] PDSCH: l_crb= 4, harq=0, tbs=0, mcs=0,
rv=3, crc=OK, snr=-4.9 dB, n_iter=0, dec_time= 74 us
21:49:59.672 [RLC ] Info BCCH DLSCH message received.
21:49:59.672 [MAC ] Info [07726] DL 8: newTX tbs=0, rv=3, ack=OK, ndi=0
(0), tti=7725 (0)
21:49:59.761 [MAC ] Info [07816] SCHED: Searching for DL grant for
SI-RNTI window_st=7825, window_len=1
21:49:59.771 [PHY ] Info [07825] PDCCH: DL DCI 1C cce_index=12,
n_data_bits=13, partial_time= 579 us
21:49:59.771 [PHY ] Info [07825] PDSCH: l_crb= 4, harq=0, tbs=0, mcs=0,
rv=1, crc=OK, snr=-4.9 dB, n_iter=0, dec_time= 44 us
21:49:59.772 [RLC ] Info BCCH DLSCH message received.
21:49:59.772 [MAC ] Info [07826] DL 8: newTX tbs=0, rv=1, ack=OK, ndi=0
(0), tti=7825 (0)
30 May 2016 Pzt, 20:55 tarihinde, Ismael Gomez <
ismael.gomez at softwareradiosystems.com> şunu yazdı:
> 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
>>
>> _______________________________________________
>> srslte-users mailing list
>> srslte-users at lists.softwareradiosystems.com
>> http://www.softwareradiosystems.com/mailman/listinfo/srslte-users
>>
>
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