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5c6865fbc6d093ed9b836c318df35eaa9ff0eec5
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300 Commits
Author SHA1 Message Date
Thomas Schlichter 5c6865fbc6 5G NR: simplify init_timeshift_rotation() 
Only Ncp1 is used, so get rid of the second timeshift_symbol_rotation array.
Also simplify the computation of "t0 * Tc * f".
 2021-04-26 16:09:32 +02:00
Sakthivel Velumani 4d60c5e4fd Fixing a bug 2021-04-26 14:52:45 +02:00
Sakthivel Velumani f5913f3bfc Fixed bug in UL slot fep 2021-04-26 03:10:41 +02:00
Sakthivel Velumani 215f263a69 Making sample offset as cmd line parameter 
for gNB its in L1 section of config file
for UE its a cmd line paramenter
 2021-04-26 03:09:17 +02:00
Sakthivel Velumani 11111bcd68 Adding freq domain deroration to DL 
also fixed build wanings
 2021-04-23 16:22:28 +02:00
Sakthivel Velumani 1991c2f9cd Revert "HACK: cut PUSCH and PDSCH OFDM symbol after complete CP" 
This reverts commit 87b53883b2.
 2021-04-23 15:42:16 +02:00
Sakthivel Velumani 945a020f93 Added linear phase derotation in UL 
This is necessary to compensate the rotation caused by the timeshifted OFDM symbol (1/8 CP)
 2021-04-23 15:41:44 +02:00
Thomas Schlichter 87b53883b2 HACK: cut PUSCH and PDSCH OFDM symbol after complete CP 
Currently we cute the PUSCH and PDSCH OFDM symbols starting within the last 1/8th of the CP to avoid ISI.
This time shift leads to a rotation in frequency domain.
The current PRB based channel estimation does not compensate for the rotation _within_ a PRB, leading to bad performance.

This commit should _not_ make it into develop branch, it is just for testing!
Instead, we should do some compensating rotation before channel estimation.
 2021-04-21 13:45:22 +02:00
Thomas Schlichter dade64ea43 Merge remote-tracking branch 'develop' into NR_DL_MIMO 2021-03-19 11:18:02 +01:00
Thomas Schlichter b7ef903cb4 Merge remote-tracking branch 'develop' into NR_10MHz 2021-03-16 16:13:17 +01:00
Thomas Schlichter 3152df445e Merge remote-tracking branch 'develop' into NR_DL_MIMO 2021-03-16 13:37:07 +01:00
Thomas Schlichter 681c03667d NR: fix init_symbol_rotation() for UL 2021-03-08 16:23:20 +01:00
Thomas Schlichter 2266d4611a NR_UE: move OFDM symbol cut position handling to nr_slot_fep() 
this slightly cleans up nr_initial_sync() and UE_thread()
 2021-03-05 15:02:18 +01:00
Thomas Schlichter dd275d0148 improve nr_slot_fep() and variants 2021-03-05 15:01:19 +01:00
Thomas Schlichter eab6379bff gNB: cut OFDM symbol for PUSCH reception within 1/8th of CP to avoid ISI 2021-03-05 14:06:09 +01:00
Thomas Schlichter 7a6f789aed Merge remote-tracking branch 'develop' into NR_FDD_FIX 2021-03-03 17:59:17 +01:00
cig e023f67ed8 Compute and apply symbol rotation for DL and UL 
- now done according to the proper DL/UL frequency
- this makes it compatible with FDD mode
 2021-02-17 14:14:06 +01:00
Thomas Schlichter 97801299dc some whitespace fixes in openair1/PHY/MODULATION/nr_modulation.c 2021-02-10 09:10:22 +01:00
dir 3efdb2775e NR SCFDMA changes for higher RB sizes (RB Sizes until 100Mhz) 2021-02-09 11:07:53 +01:00
Khodr Saaifan 58f4f155cc Enable beamforming for 2 tx antenna ports and fix corresponding segmentation error 2021-02-01 10:06:08 +01:00
Khodr Saaifan e72d0483b4 Add PDSCH precoder functions, fix pusch_rx for 2 rx antennas, fix nr_dlsim for 2x1 MIMO simulation 2021-02-01 10:06:08 +01:00
Raymond Knopp 223ed810b2 Merge remote-tracking branch 'origin/develop' into develop-oriecpriupdates 2020-11-27 19:11:05 +01:00
Raymond Knopp 7955cb4f8e tested IF4p5 on asterix/obelix (100 PRB via 1 Gbit/s) 2020-11-22 10:10:12 +01:00
Thomas Schlichter e059eeabc8 Merge remote-tracking branch 'develop' 2020-11-18 10:37:20 +01:00
Thomas Schlichter 47ce347d7e NR UE cleanup: remove current_thread_id array, nr_tti_rx, nr_tti_tx, subframe_rx and subframe_tx 2020-11-13 17:29:02 +01:00
Florian Kaltenberger 6e1ad6e93b Merge remote-tracking branch 'origin/develop' into benetel_phase_rotation 2020-11-09 13:58:41 +01:00
hardy 3917b1ae0f Merge remote-tracking branch 'origin/NR_RRCConfiguration_FR2' into integration_2020_wk45_2 2020-11-05 16:53:13 +01:00
Laurent 19c6229049 merge develop, compile ok 2020-09-22 16:24:49 +02:00
Rakesh 2cac29b5c6 fix for modulation rotataion to support all numerlogies 2020-09-17 17:46:50 +02:00
Rakesh 8ab1c0b9d4 Merge remote-tracking branch 'origin/develop' into NR_RRCConfiguration_FR2 2020-09-16 11:56:07 +02:00
Florian Kaltenberger 6931fd7d37 moving the OFDM phase rotation from RU to DU 2020-09-10 15:57:40 +02:00
Laurent a3367e58ea Merge branch 'develop' of https://gitlab.eurecom.fr/oai/openairinterface5g into main5G 2020-08-29 09:35:47 +02:00
Raymond Knopp 260a9e58a0 nr_pbchsim modifications for carrier phase rotation procedure 2020-08-27 05:49:46 +02:00
Francesco Mani 28b280a657 Merge remote-tracking branch 'origin/develop' into NR_UL_scheduling 2020-08-26 13:49:30 +02:00
Raymond Knopp 632803289c fixed initialization of rotation for symbol 0 2020-08-25 15:02:41 +02:00
Raymond Knopp b58ea80990 debug trace 2020-08-25 10:47:48 +02:00
Raymond Knopp 2124343889 Merge branch 'NR_UL_scheduling' of https://gitlab.eurecom.fr/oai/openairinterface5g into NR_UL_scheduling 2020-08-25 01:50:43 +02:00
Raymond Knopp cc0ff7422e implementation of missing symbol-based rotation for NR modulation/demodulation (Section 5.3 38.211). Tested with unitary simulators (ulsim/dlsim). 
To be tested with gNB testbench and rfsimlator
 2020-08-25 01:48:55 +02:00
Raphael Defosseux a8ea336cfd Merge remote-tracking branch 'origin/improve_nr_modulation' into develop_integration_2020_w34 2020-08-21 16:13:27 +02:00
Raphael Defosseux 34a2945abf Merge remote-tracking branch 'origin/fembms-enb-ue' into develop_integration_2020_w34 2020-08-21 16:13:08 +02:00
Laurent 38f01abd77 merge develop, compile ok, no test 2020-08-21 14:26:06 +02:00
Rakesh e1c6130187 Merge remote-tracking branch 'origin/NR_UL_scheduling' into NR_RRCConfiguration_FR2 2020-08-21 13:52:51 +02:00
Sakthivel Velumani 579f9f969b included check for mod_order 2020-08-20 16:59:02 +02:00
Francesco Mani fd003dd786 Merge remote-tracking branch 'origin/develop' into NR_UL_scheduling 2020-08-20 12:37:21 +02:00
Sakthivel Velumani dc2d948bad memory bugfix and other minor fixes 2020-08-17 13:55:13 +02:00
Raymond Knopp 80cc29acd9 optimization of RE extraction for NR ULSCH. Addition of faster memcpy to utils 2020-08-16 12:10:42 +02:00
Sakthivel Velumani 9c01cc66ea diabling avx2 for qpsk 2020-08-14 16:31:37 +02:00
Sakthivel Velumani 8aa88999fc fixes 2020-08-14 11:43:54 +02:00
Rakesh e4088f7f7f bug fix in dft memory allignment and get_band() for FR2 2020-08-14 09:55:22 +02:00
Sakthi 76f7840961 bug fixes 2020-08-10 19:22:53 +02:00