maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Parallelize the PUSCH channel estimation

Browse Source 
- add new data structures for antenna processing.
- create arrays that keep track of certain values (max_ch, noise_amp2, nest_count and delay) per each antenna. These values are processed in order to determine one final output.
- add time processing measurements for each antenna, and prints them in nr_ulsim.
- make num_antennas_per_thread configurable in nr_ulsim and the gNB config file.

Co-authored-by: Nada Bouknana <bouknana@eurecom.fr>
Co-authored-by: Brice Robert <brobert@valiha.com>
This commit is contained in:
Bartosz Podrygajlo
2024-11-15 12:35:06 +01:00
co-authored by Nada Bouknana Brice Robert
parent 25dde24d1e
commit 5605b0c0c6
6 changed files with 245 additions and 96 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair2/GNB_APP/L1_nr_paramdef.h
+4
View File
@@ -59,6 +59,8 @@
#define HLP_L1TX_BO "Backoff from full-scale output at the L1 entity(frequency domain), ex. 12 would corresponding to 14-bit input level (6 dB/bit). Default 36 dBFS for OAI RU entity"
#define CONFIG_STRING_L1_PHASE_COMP "phase_compensation"
#define HLP_L1_PHASE_COMP "Apply NR symbolwise phase rotation"
#define CONFIG_STRING_NUM_ANTENNAS_PER_THREAD "dmrs_num_antennas_per_thread"
#define HLP_NUM_ARX "Number of antennas per thread for PUSCH channel estimation"
/*----------------------------------------------------------------------------------------------------------------------------------------------------*/
/* L1 configuration parameters */
/* optname helpstr paramflags XXXptr defXXXval type numelt */
@@ -84,6 +86,7 @@
{CONFIG_STRING_L1_TX_THREAD_CORE, NULL, 0, .uptr=NULL, .defintval=-1, TYPE_UINT, 0}, \
{CONFIG_STRING_L1_TX_AMP_BACKOFF_dB, HLP_L1TX_BO,0, .uptr=NULL, .defintval=36, TYPE_UINT, 0}, \
{CONFIG_STRING_L1_PHASE_COMP, HLP_L1_PHASE_COMP,PARAMFLAG_BOOL, .uptr=NULL,.defintval=1, TYPE_UINT, 0}, \
{CONFIG_STRING_NUM_ANTENNAS_PER_THREAD, HLP_NUM_ARX,0, .uptr=NULL, .defintval=1, TYPE_UINT, 0}, \
}
// clang-format on
#define L1_CC_IDX 0
@@ -105,6 +108,7 @@
#define L1_TX_THREAD_CORE 16
#define L1_TX_AMP_BACKOFF_dB 17
#define L1_PHASE_COMP 18
#define NUM_ANTENNAS_PER_THREAD 19
/*----------------------------------------------------------------------------------------------------------------------------------------------------*/
#endif
openair2/GNB_APP/gnb_config.c
+1
View File
@@ -914,6 +914,7 @@ void RCconfig_NR_L1(void)
LOG_I(NR_PHY, "L1_RX_THREAD_CORE %d (%d)\n", *(L1_ParamList.paramarray[j][L1_RX_THREAD_CORE].iptr), L1_RX_THREAD_CORE);
gNB->TX_AMP = (int16_t)(32767.0 / pow(10.0, .05 * (double)(*L1_ParamList.paramarray[j][L1_TX_AMP_BACKOFF_dB].uptr)));
gNB->phase_comp = *L1_ParamList.paramarray[j][L1_PHASE_COMP].uptr;
gNB->dmrs_num_antennas_per_thread = *(L1_ParamList.paramarray[j][NUM_ANTENNAS_PER_THREAD].uptr);
LOG_I(NR_PHY, "TX_AMP = %d (-%d dBFS)\n", gNB->TX_AMP, *L1_ParamList.paramarray[j][L1_TX_AMP_BACKOFF_dB].uptr);
AssertFatal(gNB->TX_AMP > 300, "TX_AMP is too small, must be larger than 300 (is %d)\n", gNB->TX_AMP);
// Midhaul configuration