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Khodr Saaifan authored Jan 29, 2021 and Thomas Schlichter committed Feb 01, 2021

clean up nr_dlsch_demodulation, solve bug in nr_rb_extract to consider data/dmrs multiplexing/no data, and remove ra_pdsch hack in phy_procedures_nr_ue

- removed redundant initialisation of variables
- introduced two "RF helpers" function that are replacing shared code in the sync routines
- added a new .c file and updated the cmakelists and .h files

- Ensure that tx slot processing is done by the time trx_write_func() gets called

- restructured nr_pdcch_unscrambling function
- minor cleanups
- formatting

- RA resource selection and transmission
- MAC header structs for RA
- RA procedure msg1 fixes
- code cleanup

nr-ip noS1 uplink integration (testing with RFSIMULATOR only): Uplink IP packets received at the gNB and reaching at pdcp layer. Asserion error at pdcp_fifo_flush_sdus when trying to write on the nas socket

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Testing of NR PDCCH/PDSCH with RRC Configuration. added RRC configuration to NR UE. Updates to UE DCI procedures (moved to MAC) and updates to FAPI interfaces for UE. nr_dlsim is functional, added profiling information for gNB TX.

Ahmed Hussein authored Aug 19, 2019 and Thomas Schlichter committed Oct 08, 2019

- TBS calculation was performed 2 times. Once in "phy_procedures_nrUE_TX" and
  another in "nr_ue_ulsch_procedures". The TBS calculation was wrong in "phy_procedures_nrUE_TX"
  and correct in "nr_ue_ulsch_procedures".

- The data generation was performed in "phy_procedures_nrUE_TX" with a wrongly
  calculated TBS because "ulsch_ue->nb_re_dmrs" wasn't set to a value, so the calculated
  TBS would be more than it should be. This doesn't create a problem in the test because
  the comparison between the TX and RX data is made using the correctly calculated TBS
  which is smaller.

- Solution was to perform data generation in "nr_ue_ulsch_procedures", and remove TBS calculation
  in "phy_procedures_nrUE_TX"

Ahmed Hussein authored Aug 14, 2019 and Thomas Schlichter committed Oct 08, 2019

- removing "Nsymb_pusch" and "Nsc_pusch" from "NR_UE_ULSCH_t"
- using "number_of_symbols" from "NR_UL_UE_HARQ_t" instead
- removing "generate_ue_ulsch_params"

Ahmed Hussein authored Aug 19, 2019 and Thomas Schlichter committed Aug 23, 2019

- TBS calculation was performed 2 times. Once in "phy_procedures_nrUE_TX" and
  another in "nr_ue_ulsch_procedures". The TBS calculation was wrong in "phy_procedures_nrUE_TX"
  and correct in "nr_ue_ulsch_procedures".

- The data generation was performed in "phy_procedures_nrUE_TX" with a wrongly
  calculated TBS because "ulsch_ue->nb_re_dmrs" wasn't set to a value, so the calculated
  TBS would be more than it should be. This doesn't create a problem in the test because
  the comparison between the TX and RX data is made using the correctly calculated TBS
  which is smaller.

- Solution was to perform data generation in "nr_ue_ulsch_procedures", and remove TBS calculation
  in "phy_procedures_nrUE_TX"

Ahmed Hussein authored Aug 14, 2019 and Thomas Schlichter committed Aug 23, 2019

- removing "Nsymb_pusch" and "Nsc_pusch" from "NR_UE_ULSCH_t"
- using "number_of_symbols" from "NR_UL_UE_HARQ_t" instead
- removing "generate_ue_ulsch_params"

Khalid Ahmed authored May 09, 2019 and Thomas Schlichter committed Jun 04, 2019

- remove printf in nr_ulsch_coding.c
- renaming test_input to mac_pdu
- using memcpy for mac_pdu instead of pointing to data
- remove temp_nfapi struct from header file

Ahmed Hussein authored May 06, 2019 and Thomas Schlichter committed Jun 04, 2019

- Added nr_dft at UE side and nr_idft at gNB side
- NR_SC_FDMA can be found in "PHY/defs_nr_common.h"
- For 1 SNR loop, the code executes correctly
- For more loops, it gives a segmentation fault in the LDPC decoder
- The segmentation fault is caused when nr_idft is used
- The code works fine when the "NR_SC_FDMA" is disabled

Khalid Ahmed authored May 06, 2019 and Thomas Schlichter committed Jun 04, 2019

- adding SCHED_NR_UE_LIB to ulsim compilation library
- fixing linking compilation problems
- using fapi_nr_dci_pdu_rel15_t struct to initialize PUSCH
- test_input random data is set in phy_procedures_nrUE_TX instead of ulsim

Khalid Ahmed authored May 02, 2019 and Thomas Schlichter committed Jun 04, 2019

- modifying generate_ue_ulsch_params to work with nfapi_nr_ul_config struct
- removing ulsim_params struct

Khalid Ahmed authored Apr 18, 2019 and Thomas Schlichter committed Jun 04, 2019

implementing:
- generate_ue_ulsch_params (customized for ulsim only)
- nr_ue_ulsch_procedures
- nr_ue_pusch_common_procedures