sudo <oai_codebase>/cmake_targets/ran_build/build/nr-softmodem -O <oai_codebase>/targets/PROJECTS/GENERIC-LTE-EPC/CONF/oaiL1.nfapi.usrpx300.conf --pnf

VNF

sudo <oai_codebase>/cmake_targets/ran_build/build/nr-softmodem -O <oai_codebase>/targets/PROJECTS/GENERIC-LTE-EPC/CONF/rcc.band78.tm1.106PRB.nfapi.conf --vnf

Running using RF-Simulator

PNF

sudo RFSIMULATOR=server <oai_codebase>/cmake_targets/ran_build/build/nr-softmodem -O <oai_codebase>/targets/PROJECTS/GENERIC-LTE-EPC/CONF/oaiL1.nfapi.usrpx300.conf --pnf --parallel-config PARALLEL_SINGLE_THREAD --rfsim

VNF

sudo <oai_codebase>/cmake_targets/ran_build/build/nr-softmodem -O <oai_codebase>/targets/PROJECTS/GENERIC-LTE-EPC/CONF/rcc.band78.tm1.106PRB.nfapi.conf --vnf

20 July 2020

Plan

Task-A [packing]

Modify nfapi_p7_message_pack() in nfapi_p7.c
In the switch case, change the labels as well as the pack functions:
- pack_dl_config_request becomes pack_dl_tti_request [x]
- pack_ul_config_request becomes pack_ul_tti_request [x]
- pack_hi_dci0_request becomes pack_ul_dci_request [x]
- pack_tx_request becomes pack_tx_data_request [x]

Task-B [unpacking]

Modify nfapi_p7_message_unpack() in nfapi_p7.c
- unpack_dl_tti_request [x]
- unpack_ul_tti_request [x]
- unpack_ul_dci_request [x]
- unpack_tx_data_request [x]
Similarly change all the unpack functions within the switch-case block.
Modify the behaviour of check_unpack_length() for the new TAGS
- this is where the unpack functions are called
  - dl_tti_request [x]
  - ul_tti_request [x]
  - ul_dci_request [x]
  - tx_data_request [x]
nfapi_p7_message_unpack() is called in pnf_handle_dl_config_request() in pnf_p7.c, so we need to add
- pnf_handle_dl_tti_request [x]
- pnf_handle_ul_tti_request [x]
- pnf_handle_ul_dci_request [x]
- pnf_handle_tx_data_request[x] to handle DL P7 messages at pnf
Added allocate and deallocate functions for all P7 DL messages in pnf_p7.c
Added is_nr_p7_request_in_window() fn in pnf_p7.c that is called in P7 message handle fns

Task-C

Write the ul_tti alternative for nfapi_vnf_p7_ul_config_req() in vnf_p7_interface.c and other such functions.
- dl_tti is present as nr_dl_config [x]
- ul_tti [x]
- ul_dci [x]
- tx_data [x]
Resolve the hard-coded areas in source code. [HIGH-PRIORITY] [x]
Write the ul_tti equivalent for oai_nfapi_dl_config_req in nfapi_vnf.c and other such functions.
- dl_tti is present as nr_dl_config [x]
- ul_tti is present as oai_nfapi_ul_tti_req() [x]
- ul_dci is present as oai_nfapi_ul_dci_req() [x]
- tx_data is present as oai_nfapi_tx_data_req() [x]
Check if nr_schedule_response() needs to be upgraded [x]
- only a couple of NFAPI_MODE!=VNF_MODE checks can be added before calling the functions to handle PDUs
- we need to add NFAPI_MODE!=MONOLITHIC checks before oai_nfapi_dl_config_req and other such fns [x]
Sync with the latest stable commit in develop branch [LOW-PRIORITY]
- check deviations

Testing

Test by running VNF on a terminal and PNF in rfsim parallely
If all works fine, move to UE testing.
Check if the FAPI core functionality is not broken by running gNB in monolithic mode
Check whether the code can support latency of 0.5 ms for oai_slot_indication
Testing with a UE
- Run VNF
- Run PNF in rfsim
- Run UE in rfsim
This can be done on parallel terminals on the same machine or different machine with the appropriate configuration