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1218 Commits
Author SHA1 Message Date
Raymond Knopp 632803289c fixed initialization of rotation for symbol 0 2020-08-25 15:02:41 +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
Raymond Knopp e471d8b898 Merge remote-tracking branch 'origin/NR_RRC_PDCP' into NR_UL_scheduling 2020-08-24 11:19:42 +02:00
Thomas Schlichter b0903e2079 change timing advance to only affect the TX timestamp, not the position in the "txdata" buffer 2020-08-22 10:21:36 +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
Francesco Mani 09344667c3 fix for unresolved conflict 2020-08-21 15:08:26 +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 f42291a4f7 Merge branch 'develop' into improve_nr_modulation 2020-08-18 17:20:46 +02:00
Francesco Mani edf903f776 pucch power control and handling of missed reception using confidence level 2020-08-18 15:47:48 +02:00
Francesco Mani ffae55f62c n0 measurement in pucchsim 2020-08-17 12:30:36 +02:00
Raymond Knopp fc21364fa0 optimization of ldpc deinterleaving and llr computation 2020-08-16 15:04:27 +02:00
Raymond Knopp b16b2f7d99 optimization of NR ULSCH unscrambling 2020-08-15 09:42:05 +02:00
Parminder Singh f4631f2186 Bug-fix in Up-link with respect to PUSCH RE calculation when PTRS is enabled. 
Problem STATEMENT:
- When enabling PTRS flag in ulsim, there are multiple scrambling and decoding errors
  are observed even with high SNR values
  SNR 60dB   errors_scrambling 5546/13800
  Channel BLER 1.000000e+00, Channel BER 4.018841e-01

ANALYSIS:
- While extracting PTRS RE's, the PUSCH RE count was not updated accordingly for PTRS symbols.
- This results in 0 value LLR's on same positions which cause offset issue in later processing.

IMPLEMENTATION:
* nr_ulsch_demodulation.c
- In case of PTRS symbol, respective total number of PTRS RE's are subtracted from available
  PUSCH RE's in each PUSCH Symbol processing.

TESTING
* ulsim.c
- PTRS are enabled for testing and are not enabled by default by this commit.
- Available bit count is adjusted if PTRS is enabled.

VERIFICATION
- Total Scrambling errors after gNb processing shall be only 250 bits (in K=2)
  which were replaced with PTRS at UE side while transmission.
  SNR 60.000000 errors_scrambling 250/13800
  Channel BLER 0.000000e+00, Channel BER 1.811594e-02
- After adjusting available bits in ulsim.c for error calculation
  SNR 60.000000: n_errors errors_scrambling 0/13550
  Channel BLER 0.000000e+00, Channel BER 0.000000e+00

EXTRA
- Removed white-spaces from all above mentioned files
- Added Global/vim tags to .gitignore file
 2020-08-14 10:20:36 +02:00
Raymond Knopp 9b138dec72 LLR scaling adjustment (log2_maxh computation) for NR ULSCH receiver. 2020-08-14 08:12:18 +02:00
Raphael Defosseux 4ff959fe34 Merge remote-tracking branch 'origin/nrue_msg2_reception' into develop_integration_2020_w33 2020-08-13 22:06:25 +02:00
Raymond Knopp 49a14c4f9f fixes for TDL channel models in nr_ulsim 2020-08-13 09:43:50 +02:00
Raymond Knopp 13d1be0782 added TDL channel models and use them in nr_ulsim 2020-08-12 16:23:14 +02:00
matzakos e0e0ed0cf9 Merge remote-tracking branch 'origin/NR_UL_scheduling' into NR_RRC_PDCP 2020-08-12 14:27:05 +02:00
Thomas Schlichter a75d6088ea fix dlschsim by correctly setting dmrsConfigType 2020-08-10 20:05:40 +02:00
Sakthivel Velumani 82df0e51b9 updated tables and 64qam mod 2020-08-10 15:19:53 +02:00
Francesco Mani d8d2739c2b bugfixes 2020-08-06 17:46:16 +02:00
matzakos 5ab8e0079b Merge remote-tracking branch 'origin/NR_UL_scheduling' into NR_RRC_PDCP 2020-08-06 14:27:54 +02:00
matzakos d013302c42 Merge remote-tracking branch 'origin/NR_UL_scheduling' into NR_RRC_PDCP 
Conflicts:
	openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c
 2020-08-03 12:36:19 +02:00
Sakthivel Velumani fbd4df014c Further improvements 
additional 50% speed improvement with SIMD vectors
 2020-08-03 11:22:34 +02:00
frtabu d4bd2cdc63 implement modifying channel model algo while running, complete function freeing a model 2020-07-29 20:27:04 +02:00
frtabu f61f9520db implement queued commands in telnet server 2020-07-28 20:08:48 +02:00
frtabu 7eb2ab66c5 add telnet commands to show and modify channel simulation parameters 2020-07-28 01:33:16 +02:00
Sakthivel Velumani c868c345e3 Fixed dl ack tx in pucch 0 2020-07-28 00:30:44 +02:00
Sakthivel Velumani 5fd040d645 Added HARQ stats to ulsim 2020-07-25 00:36:53 +02:00
Sakthivel Velumani 0db13a3801 Added UL harq handling 
Also fixed bugs in ulsim and dlsim harq tests
 2020-07-24 14:00:55 +02:00
Sakthivel Velumani 2cd3c0b7bb harq put in ulsim 2020-07-22 18:08:27 +02:00
Javier Morgade df58e251d8 fembms: -FIX phy_simulators compiling error 
- adding missing dummy functions

Signed-off-by: Javier Morgade <javier.morgade@ieee.org>
 2020-07-22 10:35:22 +02:00
Javier Morgade dc857e8d76 Merge remote-tracking branch 'origin/develop' into fembms-enb-ue 2020-07-22 07:42:44 +02:00
Javier Morgade 220ba2ebc8 fembms: new mbmssim target (TOCHECK) 
Signed-off-by: Javier Morgade <javier.morgade@ieee.org>
 2020-07-21 15:20:10 +02:00
Cedric Roux 0b8d5a8fd2 Merge remote-tracking branch 'origin/develop' into NR_RRC_PDCP 
Conflicts:
	openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c
 2020-07-15 12:06:41 +02:00
Thomas Schlichter 91149a7bf5 Merge remote-tracking branch 'NR_ue_dlsch_dmrs_cdm' 2020-07-10 11:55:17 +02:00
Francesco Mani 5caf5a4d1c dlsch ue n_dmrs_cdm_groups 2020-07-10 11:46:52 +02:00
Thomas Schlichter c5357e6a59 Merge remote-tracking branch 'NR_RRC_harq_hacks' 2020-07-09 11:43:16 +02:00
Francesco Mani d474f4a1b8 fix some warnings 2020-07-09 10:55:41 +02:00
Thomas Schlichter aea3bc2d42 Merge remote-tracking branch 'NR_RRC_harq_hacks' 
Conflicts:
	openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_ue.c
	openair2/LAYER2/NR_MAC_UE/nr_ue_dci_configuration.c
	openair2/LAYER2/NR_MAC_UE/nr_ue_procedures.c
	openair2/NR_UE_PHY_INTERFACE/NR_IF_Module.c
 2020-07-09 10:27:27 +02:00
Raymond Knopp 027853ba8e Merge branch 'NR_RRC_harq_hacks' of https://gitlab.eurecom.fr/oai/openairinterface5g into NR_RRC_harq_hacks 2020-07-06 16:26:38 +02:00
Raymond Knopp 9a662fbcb3 fixed ulsim performance issues 2020-07-06 15:36:20 +02:00
Francesco Mani 64e9629b8c patch for pucch in ulsim 2020-07-06 14:37:31 +02:00
Francesco Mani 1fee40a590 fix in pucchsim 2020-07-06 10:38:36 +02:00
Raymond Knopp bea3385f28 changes for ulsim to get functionality back. simulation behaviour for PUSCH is not good (BLER waterfall is way too steep even if SNR threshold is ok). Note develop does more or less the same thing but SNR threshold is lower. 2020-07-06 01:53:46 +02:00
Raymond Knopp afb95b106f Merge branch 'NR_RRC_harq_hacks' of https://gitlab.eurecom.fr/oai/openairinterface5g into NR_RRC_harq_hacks 2020-07-04 12:59:40 +02:00
Raymond Knopp 3f38b447c6 prachsim functional for format A2 and 0. added format 0 test to CI autotests 2020-07-04 12:58:18 +02:00
matzakos 895cf14973 Merge NR_RRC_harq_hacks branch into NR_RRC_PDCP 2020-07-03 17:10:40 +02:00