It provides and overview about the Architecture, Requirement Packages,
Configuration Files, How to run Data Recording Application, and an
Overview on Collected Data Set.
The data recording App includes the following files:
- The main app: data_recording_app_v1.0.py that has the data control service, interact with tracers, and data sync and conversion service
- The configuration file: common/utils/data_recording/config/config_data_recording.json
- The wireless dictionary file: common/utils/data_recording/config/wireless_link_parameter_map.yaml
- The SigMF Interface (common/utils/data_recording/lib/sigmf_interface.py) to store recorded data and meta-data in SigMF format
- A simple script (common/utils/data_recording/sync_validation_demo.py) to validate that the recorded bits from gNB and UE are in Sync
- For more info look to doc/data_recording.md
A squashed commit further updates:
- Enhance Data Recording App structure
- Support the new state machine of T-Tracers
- Add new files for Config Interface, sync Service, def of data recording messages, and common utilties
- Make part of logging on Terminal configurable
- Add _tracer_app_gnb and t_tracer_app_ue apps to common/utils/T/tracer/Makefile
- Add Data collection Service for gNB: common/utils/T/tracer/t_tracer_app_gnb.c
- Add Data Collection Service for UE: common/utils/T/tracer/t_tracer_app_ue.c
- Add Shared memory configuration (common/utils/T/tracer/shared_memory_config.h),
since We will have too much memory consumption on the stack if the
T-tracer is not fast enough to process the traces or if we have too
much traces. As a result, tracers start to capture data, write data in
shared memory, then close the T-Tracer after getting the recording of
N slots
- Support the operation of : COnfig, Record, and Stop
- Poll from Socket and not use get_events to mitigate long-time waiting
if there is no data in buffer or the UE is already released or crashed
- Add extra offset to improve data sync
- Update input parameters to nr_ulsch_encoding () in
nr_transport_proto_ue.h to get number_dmrs_symbols to be added to
meta-data.
- In nr_ulsch_coding.c: Trace UE PHY UL Payload TX bits (T_message:
T_UE_PHY_UL_PAYLOAD_TX_BITS) including related meta-data and UTC time.
- In nr_ulsch_ue.c: Trace UE PHY UL Scrambled TX bits (T_message:
T_UE_PHY_UL_SCRAMBLED_TX_BITS) including related meta-data and UTC
time.
- Fix the input prameters in nr_ulsch_encoding () called in
(openair1/SIMULATION/NR_PHY/ulschsim.c) since a new input parameter
has been added.
- The required memories have been created and initialized in:
openair1/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c
- Those memories: memory for DMRS signals, memory for channel estimates
based on DMRS positions, memory to store slot grid with channel
coefficients based on DMRS positions after interpolation, and memory
to store extracted data including PUSCH + DMRS.
- The input parameters to nr_pusch_channel_estimation() has been updated
to get the pointer to the added memories of pusch_dmrs_slot_mem and
pusch_ch_est_dmrs_pos_slot_mem
(openair1/PHY/NR_ESTIMATION/nr_ul_estimation.h)
- The DMRS grid of NR slot and the estimated channel coefficients at
DMRS locations are logged to created memories in:
openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
- The function inner_rx in
openair1/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c is updated to log
the extracted ULSCH PRBs and the interpolated channel coefficients.
- The T-macro() has been called in
(openair1/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c) to trace added
traces: T_GNB_PHY_UL_FD_DMRS, T_GNB_PHY_UL_FD_CHAN_EST_DMRS_POS,
T_GNB_PHY_UL_FD_PUSCH_IQ, T_GNB_PHY_UL_FD_CHAN_EST_DMRS_INTERPL
Abdo-Gaber