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NR UE: add command line parameter --initial-fo to specify known initial frequency offset

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This commit is contained in:
Thomas Schlichter
2025-04-10 13:54:50 +00:00
parent d16507055f
commit 616568a79d
5 changed files with 12 additions and 1 deletions
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executables/nr-uesoftmodem.c
+1
View File
@@ -224,6 +224,7 @@ void set_options(int CC_id, PHY_VARS_NR_UE *UE){
UE->chest_freq = nrUE_params.chest_freq;
UE->chest_time = nrUE_params.chest_time;
UE->no_timing_correction = nrUE_params.no_timing_correction;
UE->initial_fo = nrUE_params.initial_fo;
LOG_I(PHY,"Set UE_fo_compensation %d, UE_scan_carrier %d, UE_no_timing_correction %d \n, chest-freq %d, chest-time %d\n",
UE->UE_fo_compensation, UE->UE_scan_carrier, UE->no_timing_correction, UE->chest_freq, UE->chest_time);
executables/nr-uesoftmodem.h
+3
View File
@@ -14,6 +14,7 @@
#define CONFIG_HLP_TIME_SYNC_I "coefficient for Integrating part of time sync PI controller\n"
#define CONFIG_HLP_NTN_INIT_TIME_DRIFT "Initial NTN DL time drift (feeder link and service link), given in µs/s\n"
#define CONFIG_HLP_AUTONOMOUS_TA "Autonomously update TA based on DL drift (useful if main contribution to DL drift is movement, e.g. LEO satellite)\n"
#define CONFIG_HLP_INITIAL_FO "Initially compensated DL frequency offset (e.g. known Doppler shift in NTN LEO scenario)\n"
#define CONFIG_HLP_AGC "Rx Gain control used for UE\n"
/***************************************************************************************************************************************/
@@ -65,6 +66,7 @@
{"time-sync-I", CONFIG_HLP_TIME_SYNC_I, 0, .dblptr=&(nrUE_params.time_sync_I), .defdblval=0.0, TYPE_DOUBLE, 0}, \
{"ntn-initial-time-drift", CONFIG_HLP_NTN_INIT_TIME_DRIFT, 0, .dblptr=&(nrUE_params.ntn_init_time_drift), .defdblval=0.0, TYPE_DOUBLE, 0}, \
{"autonomous-ta", CONFIG_HLP_AUTONOMOUS_TA, PARAMFLAG_BOOL, .iptr=&(nrUE_params.autonomous_ta), .defintval=0, TYPE_INT, 0}, \
{"initial-fo", CONFIG_HLP_INITIAL_FO, 0, .dblptr=&(nrUE_params.initial_fo), .defdblval=0.0, TYPE_DOUBLE, 0}, \
{"agc", CONFIG_HLP_AGC, PARAMFLAG_BOOL, .iptr=&(nrUE_params.agc), .defintval=0, TYPE_INT, 0}, \
}
// clang-format on
@@ -89,6 +91,7 @@ typedef struct {
double time_sync_I;
double ntn_init_time_drift;
int autonomous_ta;
double initial_fo;
int agc;
char *usrp_args;
char *tx_subdev;