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2006 Commits (5f7f818abbd27dc05a867832eeffc928de29e907)

Author SHA1 Message Date
Andre Puschmann 5f7f818abb pdu: fix bug in BSR table lookup 
the bug causes the BSR to return a bsr_idx of 0, i.e. no data
pending, when the buff_size was reported to be 1 B only.

Instead, the UE should return BSR idx 1, i.e. between 0 < BSR <= 10.
 4 years ago
Andre Puschmann 035d989737 pdu: fix unpacking of LCG2 of LBSR MAC CE 
LBSR packing is fine but this makes the eNB do wrong things
because it thinkgs LCG2 has no or too much data to send.

LCG2 is our default LCG for DRB1. One occasion we saw the issue
is doing full rate TCP DL which requires quite a bit of ACK traffic
back to the sender. With the BSR for LCG2 being wrong, providing
UL grants was delayed and so the TCP DL throuhgput was very low.

In the log below we see that the buff_size[2]=1 so there is data to send.
Interestingly, the packing was correct so Wireshark displays it correctly.
But the unpacking not, as can be seen in the MAC log below which reports
0 buffer state for all LCGs

22:08:54.804792 [MAC ] [I] [ 5084] pdu_get: sdu_len=1212, channel.sched_len=1213, bsr.buff_size[2]=1
22:08:54.804840 [MAC ] [I] [ 5084] UL LCID=3 len=1212 LBSR: b=0 0 0 0
 4 years ago
Xavier Arteaga cf55eb4c4f Improved comments 4 years ago
Xavier Arteaga e8f94c40b8 Added LDPC codeblock segmentation 4 years ago
Xavier Arteaga fc3d154fe3 Fix compilation 4 years ago
Xavier Arteaga 736e6db616 Initial resource allocation for NR 4 years ago
Xavier Arteaga 0439161de6 Removed modulation enum from LDPC RM 4 years ago
Andre Puschmann 6773f6d02f pdu_queue: add reset method to empty queue 4 years ago
Andre Puschmann f155b7a5d5 rlc: fix stopping of poll retx timer (#2006) 
* rlc_am: add TC for pollRetx timer handling

* rlc_am: fix stopping of pollRetx timer

stopping the pollRetx timer when receiving a status PDU
without checking the acknowledged PDUs is wrong.

if an ACK for another PDU, for which the polling bit has been set,
is still pending, it won't be rescheduled until another
PDU is transmitted that again starts the pollRetx timer.

this fixes the issue with missing RLC AM segment retx in #1992,
and #2003
 4 years ago
Andre Puschmann 7cf919e2af Fix MAC PDU packing after sending Truncated BSR (#2004) 
* mac_test: add extended TBSR unit test

unit test to MAC UL packing after sending a TBSR

this fixes the MAC issues described in issue #2002

* mux: fix updating of LCG buffer state after packing PDU

we've previously lowered the buffer state of the LCG according
to the bytes that have been scheduled, but not according to
those that have been actually included in the PDU.

* proc_bsr: fix LCG buffer state updating for TBSR

when sending a TBSR do not update the internal buffer
state of the BSR proc.

This caused issues because the buffer state for all LCG that
are not included in the TBSR are set to zero, although at least
one LCG does have data to transmit.

* rlc_am: include LCID when logging retx of SN
 4 years ago
Andre Puschmann 1b97ba5300 benchmark_radio: fix duration and thread priority 
I noticed that the app didn't configure the process with
RT thread prio. But it then turned out that in order to do
that we need to actually spawn a new thread. Also a few other things
didn't work out of the box.

In summary the changes are:
* fix duration to support more than 120s
* move main functionality in thread
* set high priority for radio thread
* only return success if no radio errors occured
 4 years ago
Francisco Paisana 510959b50f update nr asn1 files, and asn1 tests 4 years ago
Xavier Arteaga 8d9577626b Fix NR FEC unit test 4 years ago
Xavier Arteaga 0c2f96d389 Fix 5G NR FEC memcheck 4 years ago
Xavier Arteaga 2835e87ff0 Add missing file 4 years ago
Xavier Arteaga f8dd67260f Polar: fix unit test working directory 4 years ago
Xavier Arteaga 15356b3ec8 Fix compilation for non-AVX2 machines 4 years ago
Xavier Arteaga 2c4aa1e379 Added Polar and LDPC forward error correction 4 years ago
Xavier Arteaga 4f89c6ed3f Added missing CMakeFiles 4 years ago
Xavier Arteaga f21590735d refactored FEC directories 4 years ago
Xavier Arteaga 7093a85f81 Refactored FEC directories 4 years ago
Xavier Arteaga c2621cc4f8 Protect ring-buffer write from nullptr 4 years ago
Andre Puschmann f647343f18 rlc_am: fix poll bit during header reconstruction 
this makes sure that the reconstructed RLC AM header
has the poll bit set when any of its segments had it set.

this triggered a bug in RLC AM because the Status PDU
isn't transmitted for a RLC PDU that was segmented and
only the first segment had the P flag set.
 4 years ago
Francisco Paisana b40a5a958e use common function to fill rrc reconf message in handover 4 years ago
Francisco Paisana e9b693942f diff-based cell selection activation 4 years ago
Francisco Paisana 836e7d7ede refactor scell addition in the srsenb::rrc to follow the same style of other rrc recfg fields 4 years ago
Francisco Paisana 97f2e4336e refactor of functions for filling the asn1 radio resource config structs. This functions are used during rrc setup/reest/reconf 4 years ago
Xavier Arteaga 9487d27ef9 Renamed NR constants and comments 4 years ago
Xavier Arteaga e8f168b20c PDSCH NR: Added files 4 years ago
Xavier Arteaga c8477483d9 PDSCH NR: Added files 4 years ago
Xavier Arteaga 30d8e05d50 Fix PDSCH-DMRS symbol index 4 years ago
Xavier Arteaga 8d34d344a8 Created PDSCH-NR configuration structures and refactored DMRS 4 years ago
Xavier Arteaga 009f300c5e Initial PHY Data procedures 4 years ago
Xavier Arteaga 775692f461 Rearanged PDCCH NR functions structures 4 years ago
Xavier Arteaga 937c52339d Added PDCCH DMRS estimation and measurement 4 years ago
Xavier Arteaga 5799100e42 FFT based Resampler admits NULL inputs/outputs 4 years ago
Xavier Arteaga 44ae70dcc6 Initial implementation of the 5G NR PDCCH DMRS encoding 4 years ago
Xavier Arteaga 29ad2427d9 Initial implementation of the 5G NR PDCCH DMRS encoding 4 years ago
Xavier Arteaga 579526f1fe Added sequence advance without generating data 4 years ago
Xavier Arteaga eba20b6367 Radio: fix frame overlap at start-of-burst 4 years ago
Xavier Arteaga be400503b9 Add pass criteria to PRACH USRP test 4 years ago
Xavier Arteaga 28bb4709ff Solved possible high impact PHY out-of-bounds issues 4 years ago
Pedro Alvarez e4f143059e Simple log fix to make it easier to compare PDCP RX and TX. 4 years ago
Andre Puschmann 0740154bff rrc,sync: fix two uninit vars 
detected by Valgrind when running UE with TDD cell
 4 years ago
Andre Puschmann 723ca2dd48 ra_dl: fix TDD reference symbol extraction 
reported/provided by user softdev86 in https://github.com/srsLTE/srsLTE/issues/566

author tested with local 4 port cell. I am not able to verify locally but
it looks ok, we'll revise later if needed.
 4 years ago
gracid f67a152a2a Remove unnecessary Lime calibration step from Soapy implementation 
When using srsLTE with Lime devices, calibration was performed before any configuration steps have happened, thus making calibration values invalid. Removing Lime specific calibration step from rf_soapy_imp makes so that devices will be automatically calibrated by SoapyLMS on rf_soapy_start_stream call.

Tested and working with srsENB using LimeSDR-USB v1.4 and LimeSDR-Mini v1.2 boards.
 4 years ago
gracid 78b63c9465 Set same antennas for all Soapy channels 
This commit adresses an issue where two or more channels could have different antennas, despite being explicitly set in the configuration file
 4 years ago
Francisco Paisana 4cb6ed27eb updated scheduler ue mcs computation to account for new 256QAM tables 4 years ago
Xavier Arteaga fac6d40a45 SRSENB: fix PUSCH max number of iterations 4 years ago
Xavier Arteaga 791c979063 Vector: fix cf to cs conjugate conversion 4 years ago