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Add configuration for phase compensation

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For 7.2 FH, some RUs do phase compensation, whereas for others, the DU
does it. In fact, this can be "negotiated" using the M plane. Since we
don't have the M plane yet, add a configuration option to set where
phase compensation is performed.
This commit is contained in:
Robert Schmidt
2024-01-23 13:41:41 +01:00
parent 4783905cdb
commit 9b113d2cce
6 changed files with 24 additions and 12 deletions
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openair2/GNB_APP/L1_nr_paramdef.h
+4
View File
@@ -58,6 +58,8 @@
#define HLP_TP_SIZ "thread_pool_size paramter removed, please use --thread-pool"
#define CONFIG_STRING_L1_TX_AMP_BACKOFF_dB "tx_amp_backoff_dB"
#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"
/*----------------------------------------------------------------------------------------------------------------------------------------------------*/
/* L1 configuration parameters */
/* optname helpstr paramflags XXXptr defXXXval type numelt */
@@ -83,6 +85,7 @@
{CONFIG_STRING_L1_RX_THREAD_CORE, NULL, 0, .uptr=NULL, .defintval=-1, TYPE_UINT, 0}, \
{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}, \
}
// clang-format on
#define L1_CC_IDX 0
@@ -104,6 +107,7 @@
#define L1_RX_THREAD_CORE 16
#define L1_TX_THREAD_CORE 17
#define L1_TX_AMP_BACKOFF_dB 18
#define L1_PHASE_COMP 19
/*----------------------------------------------------------------------------------------------------------------------------------------------------*/
#endif
openair2/GNB_APP/gnb_config.c
+1
View File
@@ -885,6 +885,7 @@ void RCconfig_NR_L1(void)
RC.gNB[j]->L1_tx_thread_core = *(L1_ParamList.paramarray[j][L1_TX_THREAD_CORE].iptr);
LOG_I(PHY,"L1_RX_THREAD_CORE %d (%d)\n",*(L1_ParamList.paramarray[j][L1_RX_THREAD_CORE].iptr),L1_RX_THREAD_CORE);
RC.gNB[j]->TX_AMP = (int16_t)(32767.0 / pow(10.0, .05 * (double)(*L1_ParamList.paramarray[j][L1_TX_AMP_BACKOFF_dB].uptr)));
RC.gNB[j]->phase_comp = *L1_ParamList.paramarray[j][L1_PHASE_COMP].uptr;
LOG_I(PHY, "TX_AMP = %d (-%d dBFS)\n", RC.gNB[j]->TX_AMP, *L1_ParamList.paramarray[j][L1_TX_AMP_BACKOFF_dB].uptr);
AssertFatal(RC.gNB[j]->TX_AMP > 300, "TX_AMP is too small, must be larger than 300 (is %d)\n", RC.gNB[j]->TX_AMP);
if (strcmp(*(L1_ParamList.paramarray[j][L1_TRANSPORT_N_PREFERENCE_IDX].strptr), "local_mac") == 0) {