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5504 Commits
Author SHA1 Message Date
Raymond Knopp de7d35007c temporary revert to 1 estimate per PRB for performance evaluation 2021-05-22 16:26:00 +02:00
Sakthivel Velumani 3ac2343ad9 Fixed start & end PRB 2021-05-10 11:15:51 +02:00
Sakthivel Velumani d621ad67e5 Fixied nrulsim 2021-05-10 00:23:37 +02:00
Sakthivel Velumani 7948949604 Smoothing the frequency response 2021-05-10 00:09:18 +02:00
Sakthivel Velumani 2a6442096c Merge remote-tracking branch 'origin/develop' into prb_based_dl_channel_estimation 2021-05-05 14:34:14 +02:00
Thomas Schlichter 014280bf13 NR_UE: fix PRACH TX timing for FR2 2021-05-04 16:47:30 +02:00
Sakthivel Velumani 2437d58b17 Fixing sample offset for PRACH rx 2021-05-04 01:44:55 +02:00
Sakthivel Velumani e7425965ed Fixing UE OFDM symbol generation 
The CP length was hard coded for numerology 1
 2021-05-03 20:46:10 +02:00
hardy c2acb9e9e5 Merge remote-tracking branch 'origin/NR_FR2_initsync_fixes' into integration_2021_wk18_a 2021-05-03 15:45:39 +02:00
hardy 010d39c9ab Merge remote-tracking branch 'origin/NR_scheduling_request' into integration_2021_wk18_a 2021-05-03 15:44:31 +02:00
Sakthivel Velumani 2b96ebac1f Changing back the default numnerology 2021-04-30 16:48:06 +02:00
Sakthivel Velumani 04b46effc2 Disabling the DC clearing in UL 2021-04-30 16:34:35 +02:00
Sakthivel Velumani 493dab700d Updating ulsim 
adding option to change numberology
 2021-04-29 15:29:43 +02:00
francescomani d2f1e41bcb using n_frames to compute init_sync_frame 2021-04-29 12:02:51 +02:00
hardy 273c6ff39f Merge remote-tracking branch 'origin/ue-pdsch-pusch-parallel' into integration_2021_wk17_b 2021-04-29 11:55:17 +02:00
hardy 47fee08a0c Merge remote-tracking branch 'origin/multiple_ssb_sib1_bugfix' into integration_2021_wk17_b 2021-04-29 11:49:29 +02:00
francescomani cc15ac25b9 simplification of previous fix 2021-04-28 17:49:27 +02:00
luis_pereira87 401151bff4 Fix dmrs_idx for coreset with duration > 1 symbol 2021-04-28 16:39:10 +01:00
Thomas Schlichter 8a7a79374b 5G NR: change PUSCH and PDSCH channel levelling for higher accuracy 2021-04-27 17:08:13 +02:00
Thomas Schlichter da799243d5 Merge remote-tracking branch 'origin/develop' into prb_based_dl_channel_estimation 2021-04-27 16:55:29 +02:00
francescomani b08037d6d1 Merge remote-tracking branch 'origin/develop' into multiple_ssb_sib1_bugfix 2021-04-27 16:14:43 +02:00
francescomani 31aade2002 tentative fix for wrong frame caused by rx offset 2021-04-27 15:48:23 +02:00
Robert Schmidt c2d16eb8d5 Configure secondaryCellGroup: dedicated PUCCH, CSI, Preamble 
- Configure PUCCH Format 0 to be in separate RBs (each UE has dedicated
  resources)
- Configure RA preamble to be different per UE
- Configure CSI offset such that no two UEs have their report in the
  same frame
 2021-04-27 08:30:31 +02:00
Thomas Schlichter b073ca48c3 gNB: improve TA accuracy 
The TA calculation takes the CIR peak position error and scales it according to 38.213 section 4.2.
Till now it was simply an integer division "timing_advance_update = sync_pos / bw_scaling".

E.g. in case of bandwidth_scaling == 16, the timing_advance_update was 0 for sync_pos between -15 and +15.
With this change, this range (and thus the UL timing error) will be reduced to -8 and +8.
 2021-04-26 18:05:17 +02:00
francescomani bd06094338 another bug fixed 2021-04-26 17:56:51 +02:00
francescomani ff87164011 bugfixes in FR2 scheduling of ssbs 2021-04-26 16:31:20 +02:00
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
Thomas Schlichter 942037beb3 5G NR: move CIR peak to 0 
The rotation compensating the shifted OFDM position _before_ the channel estimation makes the CIR peak move back to 0.
We have to take this into account on gNB side when calculating the timing advance command, and on UE side in the time adjustment.
 2021-04-26 14:58:01 +02:00
Thomas Schlichter 626ab8aa3a NR_UE: adjust some LOG levels 2021-04-26 14:58:01 +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
Robert Schmidt 26b6d87fa3 Merge branch 'develop' into integration_2021_wk13_b 2021-04-25 16:34:30 +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
hardy 0ca618a68a Merge remote-tracking branch 'origin/fixgtpu' into integration_2021_wk16 2021-04-22 19:45:31 +02:00
Sakthivel Velumani e956c372df Fixed physim build issues 2021-04-22 13:42:59 +02:00
francescomani f4cbc50f59 bugfix for sib1 in case of ssb different from 0 2021-04-22 10:32:23 +02:00
Laurent THOMAS df56f5d345 fix4 T_IDs.h 2021-04-21 15:28:48 +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 b110c3622b NR_UE: fix possible overflow in PRB based PDSCH channel estimation 2021-04-21 13:45:22 +02:00
Thomas Schlichter fd70cd3e44 gNB: fix possible overflow in PRB based PUSCH channel estimation 2021-04-21 13:45:22 +02:00
Thomas Schlichter 5d6c01de91 nr_ulsim: fix for nb_antennas_tx != nb_antennas_rx 
use nb_antennas_tx instead of nb_antennas_rx when copying data from UE->common_vars.txdata to s_re and s_im
 2021-04-21 13:23:27 +02:00
Thomas Schlichter d2752d0dc5 NR_UE: fix allocation of txdataF_layers 
Each element is sizeof(int32_t), not sizeof(int32_t *).
 2021-04-21 13:20:24 +02:00
Sakthivel Velumani b546e6445d Merge remote-tracking branch 'origin/develop' into prb_based_dl_channel_estimation 2021-04-19 10:18:05 +02:00
Sakthivel Velumani a96501177e Code cleanup as per reiview comments 2021-04-17 21:47:01 +02:00
Sakthivel Velumani 3e411abb7c Fixed compiler warning 2021-04-16 18:37:57 +02:00
Sakthivel Velumani bf8b621995 Adding timing stats for ul indication and scheduler 2021-04-16 17:36:48 +02:00
Sakthivel Velumani b56bfa7dbe fixed max print 2021-04-16 17:07:56 +02:00