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83 Commits
Author SHA1 Message Date
rmagueta 722505f22d Merge remote-tracking branch 'origin/bandwidth-testing' into bandwidth-testing-abs 
# Conflicts:
#	openair1/PHY/MODULATION/slot_fep_nr.c
#	openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
#	openair1/PHY/NR_TRANSPORT/pucch_rx.c
#	openair2/LAYER2/NR_MAC_UE/config_ue.c
#	openair2/LAYER2/NR_MAC_UE/nr_ue_dci_configuration.c
#	openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c
#	openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
#	openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c
#	openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c
 2021-09-08 17:05:01 +01:00
Eurecom 4624a94d48 Merge remote-tracking branch 'origin/develop' into bandwidth-testing 
Conflicts:
	executables/nr-uesoftmodem.c
	executables/nr-uesoftmodem.h
	executables/softmodem-common.h
	openair1/PHY/MODULATION/slot_fep_nr.c
	openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
	openair1/PHY/NR_TRANSPORT/pucch_rx.c
	openair1/SCHED_NR/fapi_nr_l1.c
	openair1/SCHED_NR_UE/phy_procedures_nr_ue.c
	openair1/SIMULATION/TOOLS/abstraction.c
	openair1/SIMULATION/TOOLS/random_channel.c
	openair2/LAYER2/NR_MAC_UE/mac_proto.h
	openair2/LAYER2/NR_MAC_UE/nr_ue_dci_configuration.c
	openair2/LAYER2/NR_MAC_UE/nr_ue_scheduler.c
	openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c
	openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c
 2021-09-06 10:34:14 +02:00
rmagueta 5e1065e88f Merge remote-tracking branch 'origin/develop' into bandwidth-testing-abs 
# Conflicts:
#	executables/nr-uesoftmodem.c
#	executables/nr-uesoftmodem.h
#	executables/softmodem-common.h
#	openair1/PHY/MODULATION/slot_fep_nr.c
#	openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
#	openair1/SCHED_NR/fapi_nr_l1.c
#	openair1/SCHED_NR_UE/phy_procedures_nr_ue.c
#	openair2/LAYER2/NR_MAC_UE/mac_proto.h
#	openair2/LAYER2/NR_MAC_UE/nr_ue_dci_configuration.c
#	openair2/LAYER2/NR_MAC_UE/nr_ue_scheduler.c
#	openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c
#	openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c
 2021-09-02 17:57:48 +01:00
Eurecom bafd82a935 Merge remote-tracking branch 'origin/NR_UE_SA' into bandwidth-testing 
Conflicts:
	executables/nr-ru.c
	openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
	openair1/SCHED_NR/phy_procedures_nr_gNB.c
	openair2/LAYER2/NR_MAC_gNB/config.c
	openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_bch.c
	openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
	openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c
	openair2/RRC/NR/MESSAGES/asn1_msg.c
	openair2/RRC/NR/nr_rrc_proto.h
	openair2/RRC/NR/rrc_gNB.c
	openair2/RRC/NR/rrc_gNB_reconfig.c
 2021-08-21 07:48:04 +02:00
Sakthivel Velumani a87dca8691 Merge branch 'develop' into prb_based_dl_channel_estimation 2021-08-16 18:59:29 +05:30
Sakthivel Velumani 255a5acbfa Made FD interpolation by default 
PRB based averaging can activated from command line options
 2021-08-14 09:05:49 +05:30
Raphael Defosseux 597f2b3e8f Merge remote-tracking branch 'origin/NR_new_ul_antennaports' into integration_2021_w32 2021-08-06 10:39:34 +02:00
Eurecom 1385af17e9 end2end functional again (sort of). 2021-08-04 11:21:39 +02:00
Sakthivel Velumani 6050776f55 Merge branch 'develop' into prb_based_dl_channel_estimation 2021-08-02 12:17:03 +02:00
francescomani fe2fa4ce8d adding comments for transform precoding 2021-07-29 11:26:47 +02:00
Eurecom 378211346a debugging 2021-07-26 08:13:06 +02:00
francescomani f833ca474a some more changes in ulsch structures 2021-07-24 16:45:37 +02:00
francescomani de4676dde1 reworking UL antenna port definitions at gNB 2021-07-24 16:09:18 +02:00
francescomani f879260bf9 removing unused fapi structures at UE 2021-06-11 18:11:09 +02:00
Sakthivel Velumani 0c84d4db02 printing time response in ulsim 2021-05-23 16:57:49 +02:00
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 7948949604 Smoothing the frequency response 2021-05-10 00:09:18 +02:00
Thomas Schlichter fd70cd3e44 gNB: fix possible overflow in PRB based PUSCH channel estimation 2021-04-21 13:45:22 +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
Raymond Knopp 7818958da0 Validated up to reception of first PUSCH after Msg4 (contains RRCSetupComplete) 2021-04-16 15:30:50 +02:00
Sakthivel Velumani 3c17c29a1d Merge branch 'develop' into prb_based_dl_channel_estimation 2021-04-07 14:02:40 +02:00
rmagueta b43c054f02 Merge remote-tracking branch 'origin/develop' into develop-SA-CBRA 
# Conflicts:
#	openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c
#	targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb.sa.band41.fr1.106PRB.usrpb210.conf
#	targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb.sa.band78.fr1.106PRB.usrpb210.conf
 2021-03-29 15:51:37 +01:00
Sakthivel Velumani 1d2e5cabd8 Closing review comments 
MR 1081
 2021-03-26 14:41:56 +01:00
Sakthivel Velumani 03ba68d42e Merge branch 'develop' into prb_based_dl_channel_estimation 2021-03-22 16:25:19 +01:00
rmagueta 9456542678 Merge remote-tracking branch 'origin/develop' into develop-SA-CBRA 
# Conflicts:
#	openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
 2021-03-16 16:04:23 +00:00
Thomas Schlichter 3152df445e Merge remote-tracking branch 'develop' into NR_DL_MIMO 2021-03-16 13:37:07 +01:00
luis_pereira87 982a054631 Add support for PUSCH DMRS sequence generation when BWPStart>0 2021-03-10 10:42:11 +00:00
cig a2e2968244 Fix after review MR 1039 
- use LOG_D for debug logging
 2021-03-09 10:06:33 +01:00
Sakthivel Velumani 3fe2628df0 fixing build errors 2021-03-05 16:51:09 +01:00
Sakthivel Velumani d4a53d522f Merge branch 'develop' into prb_based_dl_channel_estimation 2021-03-05 13:25:35 +01:00
Sakthivel Velumani 0fb6934fed Cmd line parameter for UE 2021-03-05 12:11:46 +01:00
Sakthivel Velumani 8d07eacd9e Added averaging channel est to PUSCH 
Included command line option to select interpolation method
 2021-03-05 11:44:31 +01:00
Thomas Schlichter 7a6f789aed Merge remote-tracking branch 'develop' into NR_FDD_FIX 2021-03-03 17:59:17 +01:00
cig f2bc1012be Minor cleanup UE 
- removed commented out code
- improved logging in UL channel estimation
- minor fixes according to OAI coding guidelines
- moving fetching TDD configuration parameters in nr-ue.c only in TDD case
 2021-03-03 17:58:07 +01:00
Saankhya 37a2ce7d3d following coding guideline 
fixing the RE offset for each Rx antenna in pusch channel estimation
 2021-02-24 12:01:58 +05:30
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
dir a17f00784c NR_SC_FDMA changes 
- CDM groups used, multiple DMRS locations tested
- REMOVED compiler define NR_SC_FDMA
- enabled -Z option in ulsim for testing NR SC-FDMA
- Gnb UL Processing of LLRS even if last symbol allocated has no data
- transform precoding Enumerations used
 2020-12-21 14:01:59 +02:00
Parminder Singh 4fe5986845 Corrected conditional statement wrt OAI Formatting Rules 2020-11-12 19:29:10 +01:00
Parminder Singh b0ee3bb206 Correction for first OFDM symbol estimation and compensation 
- Direct multiply with the conjugate of the estimation for compensation
 2020-11-09 17:25:00 +01:00
Parminder Singh 910c1860f0 DMRS estimation default value is moved outside slot processing 
- in PTRS processing the default value for DMRS is set outside slot
   processing.
 2020-11-06 14:26:25 +01:00
Parminder Singh c9523b88a7 Updated UL ptrs processing wrt DL 
- Most DL code is reused for Ul also to reduce code duplication
- Common CPE calculation function is used for error estimation
- Common slot processing function is used for inter/extrapolation
- Removed old implementation dedicated to UL
 2020-11-05 14:00:01 +01:00
Parminder Singh 209785551a Review Comments are updated 
- updated return function value to -1
- removed static variable for dmrs symbol selection for channel
- Updated sin cos quadrant check conditions
- removed casting from PTRS slope and related calculations
 2020-11-04 11:29:35 +01:00
Thomas Schlichter 73f5851690 Merge remote-tracking branch 'develop' 
Conflicts:
	openair1/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c
	openair1/PHY/NR_TRANSPORT/pucch_rx.c
	openair1/SIMULATION/NR_PHY/ulsim.c
 2020-09-08 12:01:37 +02:00
Parminder Singh 88a14fc4cc Set the previous PTRS estimates to 0 for each slot 
- The memory shall be reset for each slot to avoid interpolation error.
 2020-09-02 10:10:10 +02:00
Parminder Singh 14096886e8 Enable PTRS with command line in ULSIM 
- To enable PTRS use -T flag followed by 3 integers
- Example: ./nr_ulsim -T 2 0 2
- 1st Value is the list of arguments -> e.g. 2
- 2nd Value is for L_PTRS{0,1,2}     -> e.g. 0
- 3rd Value is for K_PTRS{2,4}       -> e.g. 2
 2020-08-31 17:51:56 +02:00
Parminder Singh ec0aea2374 Removed separate LLR calculation for PTRS 
- New Data Structure to store PTRS RE's is removed
- LLR's are calculated at the end symbol for whole slot
 2020-08-28 12:14:13 +02:00
Parminder Singh b288eafd1e Common Phase error estimation and compensation in uplink. 
FEATURE STATEMENT:
- Introduce linear phase error noise model in Uplink at UE
- Perform common phase error (CPE) estimation and compensation at gNB

SOLUTION:
- A linear phase shift model is introduced in simulation.
- PTRS symbols are used to perform estimation of CPE from DMRS compensated signal
- The estimated values are interpolated in time domain and signal is compensated for the CPE.
- PTRS processing is done in Frequency Domain for each symbol in a slot and
  LLR's are calculated for each symbol accordingly.

IMPLEMENTATION:
* sim.h/channle_sim.c
- Linear Phase Noise Generation model definition.
* nr_ul_channel_estimation.c/nr_ul_estimation.h
- CPE estimation from PTRS and DMRS compensated signal.
* nr_dmrs_rx.c/nr_refsig.h
- Regenerate PTRS symbols at gNB.
* nr_ulsch_demodulation.c
- Removed old PTRS processing code and move to a common PTRS processing function
* defs_gNB.h/init.c
- New PTRS variables definition and initialization
* nr_ulsch_ue.c
- Corrected PTRS parameter to get new PTRS symbols for each OFDM symbol

TESTING
* ulsim.c
- Added Phase noise, Enable PTRS signal and verified the output.

VERIFICATION
- The LLR are rotated back with estimated CPE and no error is observed in scrambling/decoding
 2020-08-27 11:55:06 +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