nr-ip-over-LTE: Resolved issue with duplicate IP packet at the receiver UE IP interface and packet losses are reduced. Remaining to identify why occasionally IP packets are received at the PDCP stack later than the time slot of their arrival at PHY/MAC. Introduced some debug logs, to be removed later.

nr-ip-over-LTE: Small fixes, now IP traffic is received at the IP interface of the UE but there are many packet losses and occasionally there are duplicate ping requests received, leading to UE crashing

nr-ip-over-LTE: Modification to support both use cases: DLSCH phy-test scheduling (random data generation in every opportunity) AND DLSCH scheduling only when there is IP traffic arriving through the LTE stack (noS1 mode)

nFAPI fix for L2 nFAPI simulator.

See merge request oai/openairinterface5g!670

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

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

Integration develop nr w37

See merge request oai/openairinterface5g!668

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

Conflicts:
	executables/nr-ru.c
	nfapi/open-nFAPI/nfapi/public_inc/nfapi_nr_interface.h

Merge remote-tracking branch 'origin/443-add-support-to-create-vcd-files-in-develop-nr' into integration_develop-nr_w37

nr-ip-over-lte :Enable TUN interface at nrUE and required (LTE-based) PDCP, RLC configuration for DL IP traffic flow. Traffic received at the UE TUN IP interface successfully now.

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

fixing a bug in the allocation of the UE HARQ structures that was causing a segfault. Fixing some compiler warnings

Resolve "Problems transmitting data via NR-PDSCH"

See merge request oai/openairinterface5g!658

hotfix: replacing msg with printf in unitary simulators (msg(...) was replaced with LOG_D(PHY,...) but it was used before log was initialized)

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

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

- changed Mdlharq to Mlimit when comparing with the round number
- Not incrementing the HARQ round in case of err_flag = 1, until HARQ is implemented
- Changed MAX_LDPC_ITERATIONS to 5 from 4 (provided better performance)

- Setting the payload to random data instead of all zeros at the Tx side

- Handling "nb_symb_sch" equal to 0 in "phy_procedures_nrUE_RX" which prevents
  entering "nr_ue_pdsch_procedures"

- Handling symbol loop problem in "nr_ue_pdsch_procedures"

- Handling resource block loop problem in "nr_rx_pdsch"

Develop nr merge

See merge request oai/openairinterface5g!588

Merge branch 'develop-nr-merge' of https://gitlab.eurecom.fr/oai/openairinterface5g into develop-nr-merge

Usrp ref locked

See merge request oai/openairinterface5g!657