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

Made FD interpolation by default

Browse Source 
PRB based averaging can activated from command line options
This commit is contained in:
Sakthivel Velumani
2021-08-14 09:05:49 +05:30
parent 3ab21d8fd1
commit 255a5acbfa
10 changed files with 22 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files
executables/nr-gnb.c
+1 -1
View File
@@ -536,7 +536,7 @@ void init_gNB(int single_thread_flag,int wait_for_sync) {
gNB->UL_INFO.cqi_ind.cqi_raw_pdu_list = gNB->cqi_raw_pdu_list;*/
gNB->prach_energy_counter = 0;
gNB->fd_interpolation = get_softmodem_params()->fd_interpolation;
gNB->prb_interpolation = get_softmodem_params()->prb_interpolation;
}
executables/nr-uesoftmodem.c
+2 -2
View File
@@ -321,8 +321,8 @@ void set_options(int CC_id, PHY_VARS_NR_UE *UE){
UE->rf_map.chain = CC_id + chain_offset;
LOG_I(PHY,"Set UE mode %d, UE_fo_compensation %d, UE_scan_carrier %d, UE_no_timing_correction %d \n, fd_lin_interpolation %d",
UE->mode, UE->UE_fo_compensation, UE->UE_scan_carrier, UE->no_timing_correction, UE->fd_lin_interpolation);
LOG_I(PHY,"Set UE mode %d, UE_fo_compensation %d, UE_scan_carrier %d, UE_no_timing_correction %d \n, do_prb_interpolation %d\n",
UE->mode, UE->UE_fo_compensation, UE->UE_scan_carrier, UE->no_timing_correction, UE->prb_interpolation);
// Set FP variables
executables/nr-uesoftmodem.h
+1 -1
View File
@@ -62,7 +62,7 @@
{"E" , CONFIG_HLP_TQFS, PARAMFLAG_BOOL, u8ptr:&(fp->threequarter_fs), defintval:0, TYPE_UINT8, 0}, \
{"T" , CONFIG_HLP_TDD, PARAMFLAG_BOOL, iptr:&tddflag, defintval:0, TYPE_INT, 0}, \
{"ue-timing-correction-disable", CONFIG_HLP_DISABLETIMECORR, PARAMFLAG_BOOL, iptr:&(UE->no_timing_correction), defintval:0, TYPE_INT, 0}, \
{"do-fd-interpolation", CONFIG_HLP_FDINTER, PARAMFLAG_BOOL, iptr:&(UE->fd_lin_interpolation), defintval:0, TYPE_INT, 0}, \
{"do-prb-interpolation", CONFIG_HLP_PRBINTER, PARAMFLAG_BOOL, iptr:&(UE->prb_interpolation), defintval:0, TYPE_INT, 0}, \
}
executables/softmodem-common.h
+4 -4
View File
@@ -72,7 +72,7 @@ extern "C"
#define CONFIG_HLP_DLMCS "Set the maximum downlink MCS\n"
#define CONFIG_HLP_STMON "Enable processing timing measurement of lte softmodem on per subframe basis \n"
#define CONFIG_HLP_256QAM "Use the 256 QAM mcs table for PDSCH\n"
#define CONFIG_HLP_FDINTER "Do frequency domain linear interpolation for channel estimates. By default, average of estimates over 1 PRB is used\n"
#define CONFIG_HLP_PRBINTER "Do PRB based averaging of channel estimates. Frequency domain linear interpolation by default\n"
#define CONFIG_HLP_NONSTOP "Go back to frame sync mode after 100 consecutive PBCH failures\n"
//#define CONFIG_HLP_NUMUES "Set the number of UEs for the emulation"
@@ -120,7 +120,7 @@ extern "C"
#define SEND_DMRSSYNC softmodem_params.send_dmrs_sync
#define USIM_TEST softmodem_params.usim_test
#define USE_256QAM_TABLE softmodem_params.use_256qam_table
#define FD_INTERPOLATION softmodem_params.fd_interpolation
#define PRB_INTERPOLATION softmodem_params.prb_interpolation
#define NFAPI softmodem_params.nfapi
#define NON_STOP softmodem_params.non_stop
@@ -155,7 +155,7 @@ extern int usrp_tx_thread;
{"nokrnmod", CONFIG_HLP_NOKRNMOD, PARAMFLAG_BOOL, uptr:&nokrnmod, defintval:0, TYPE_INT, 0}, \
{"nbiot-disable", CONFIG_HLP_DISABLNBIOT, PARAMFLAG_BOOL, uptr:&nonbiot, defuintval:0, TYPE_INT, 0}, \
{"use-256qam-table", CONFIG_HLP_256QAM, PARAMFLAG_BOOL, iptr:&USE_256QAM_TABLE, defintval:0, TYPE_INT, 0}, \
{"do-fd-interpolation", CONFIG_HLP_FDINTER, PARAMFLAG_BOOL, iptr:&FD_INTERPOLATION, defintval:0, TYPE_INT, 0}, \
{"do-prb-interpolation", CONFIG_HLP_PRBINTER, PARAMFLAG_BOOL, iptr:&PRB_INTERPOLATION, defintval:0, TYPE_INT, 0}, \
{"usrp-tx-thread-config", CONFIG_HLP_USRP_THREAD, 0, iptr:&usrp_tx_thread, defstrval:0, TYPE_INT, 0}, \
{"nfapi", CONFIG_HLP_NFAPI, 0, u8ptr:&nfapi_mode, defintval:0, TYPE_UINT8, 0}, \
{"non-stop", CONFIG_HLP_NONSTOP, PARAMFLAG_BOOL, iptr:&NON_STOP, defintval:0, TYPE_INT, 0}, \
@@ -249,7 +249,7 @@ typedef struct {
int hw_timing_advance;
uint32_t send_dmrs_sync;
int use_256qam_table;
int fd_interpolation;
int prb_interpolation;
uint8_t nfapi;
int non_stop;
} softmodem_params_t;
openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
+2 -2
View File
@@ -187,7 +187,7 @@ int nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
#endif
//if ((gNB->frame_parms.N_RB_UL&1)==0) {
if (pusch_pdu->dmrs_config_type == pusch_dmrs_type1 && gNB->fd_interpolation == 1){
if (pusch_pdu->dmrs_config_type == pusch_dmrs_type1 && gNB->prb_interpolation == 0){
LOG_D(PHY,"PUSCH estimation DMRS type 1, Freq-domain interpolation");
// Treat first 2 pilots specially (left edge)
ch[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
@@ -432,7 +432,7 @@ int nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
}
#endif
}
else if (pusch_pdu->dmrs_config_type == pusch_dmrs_type2 && gNB->fd_interpolation == 1) { //pusch_dmrs_type2 |p_r,p_l,d,d,d,d,p_r,p_l,d,d,d,d|
else if (pusch_pdu->dmrs_config_type == pusch_dmrs_type2 && gNB->prb_interpolation == 0) { //pusch_dmrs_type2 |p_r,p_l,d,d,d,d,p_r,p_l,d,d,d,d|
LOG_D(PHY,"PUSCH estimation DMRS type 2, Freq-domain interpolation");
// Treat first DMRS specially (left edge)
openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c
+2 -2
View File
@@ -785,7 +785,7 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
printf("rxF addr %p p %d\n", rxF,p);
printf("dl_ch addr %p nushift %d\n",dl_ch,nushift);
#endif
if (config_type == NFAPI_NR_DMRS_TYPE1 && ue->fd_lin_interpolation == 1) {
if (config_type == NFAPI_NR_DMRS_TYPE1 && ue->prb_interpolation == 0) {
// Treat first 2 pilots specially (left edge)
ch[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
@@ -962,7 +962,7 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
8);
}
}
} else if (config_type == NFAPI_NR_DMRS_TYPE2 && ue->fd_lin_interpolation == 1){ //pdsch_dmrs_type2 |dmrs_r,dmrs_l,0,0,0,0,dmrs_r,dmrs_l,0,0,0,0|
} else if (config_type == NFAPI_NR_DMRS_TYPE2 && ue->prb_interpolation == 0){ //pdsch_dmrs_type2 |dmrs_r,dmrs_l,0,0,0,0,dmrs_r,dmrs_l,0,0,0,0|
// Treat first 4 pilots specially (left edge)
ch_l[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
openair1/PHY/defs_gNB.h
+1 -1
View File
@@ -840,7 +840,7 @@ typedef struct PHY_VARS_gNB_s {
int **dl_precoder_SgNB[3];
char log2_maxp; /// holds the maximum channel/precoder coefficient
int fd_interpolation;
int prb_interpolation;
/// if ==0 enables phy only test mode
int mac_enabled;
openair1/PHY/defs_nr_UE.h
+3 -3
View File
@@ -861,9 +861,9 @@ typedef struct {
uint32_t perfect_ce;
// flag to activate linear interpolation in frequency-domain channel estimation
// when off (default), this just averages channel on per-PRB basis
int fd_lin_interpolation;
// flag to activate PRB based averaging of channel estimates
// when off, defaults to frequency domain interpolation
int prb_interpolation;
int16_t ch_est_alpha;
int generate_ul_signal[NUMBER_OF_CONNECTED_gNB_MAX];
openair1/SIMULATION/NR_PHY/dlsim.c
+3 -3
View File
@@ -477,7 +477,7 @@ int main(int argc, char **argv)
break;
case 'i':
fd_inter=1;
prb_inter=1;
break;
case 'n':
@@ -638,7 +638,7 @@ int main(int argc, char **argv)
printf("-g [A,B,C,D,E,F,G,R] Use 3GPP SCM (A,B,C,D) or 36-101 (E-EPA,F-EVA,G-ETU) models or R for MIMO model (ignores delay spread and Ricean factor)\n");
printf("-y Number of TX antennas used in gNB\n");
printf("-z Number of RX antennas used in UE\n");
printf("-i Activate freq domain interpolation for channel estimation. Average over 1 PRB by default.\n");
printf("-i Activate PRB based averaging for channel estimation. Frequncy domain interpolation by default.\n");
//printf("-j Relative strength of second intefering gNB (in dB) - cell_id mod 3 = 2\n");
printf("-R N_RB_DL\n");
printf("-O oversampling factor (1,2,4,8,16)\n");
@@ -905,7 +905,7 @@ int main(int argc, char **argv)
UE->if_inst->phy_config_request = nr_ue_phy_config_request;
UE->if_inst->dl_indication = nr_ue_dl_indication;
UE->if_inst->ul_indication = dummy_nr_ue_ul_indication;
UE->fd_lin_interpolation = fd_inter;
UE->prb_interpolation = prb_inter;
UE_mac->if_module = nr_ue_if_module_init(0);
openair1/SIMULATION/NR_PHY/ulsim.c
+3 -3
View File
@@ -425,7 +425,7 @@ int main(int argc, char **argv)
break;
case 'i':
fd_inter=1;
prb_inter=1;
break;
case 'k':
@@ -587,7 +587,7 @@ int main(int argc, char **argv)
printf("-f Number of frames to simulate\n");
printf("-g [A,B,C,D,E,F,G] Use 3GPP SCM (A,B,C,D) or 36-101 (E-EPA,F-EVA,G-ETU) models (ignores delay spread and Ricean factor)\n");
printf("-h This message\n");
printf("-i Activate freq domain interpolation for channel estimation. Average over 1 PRB by default.\n");
printf("-i Activate PRB based averaging for channel estimation. Frequncy domain interpolation by default.\n");
//printf("-j Relative strength of second intefering eNB (in dB) - cell_id mod 3 = 2\n");
printf("-s Starting SNR, runs from SNR0 to SNR0 + 10 dB if ending SNR isn't given\n");
printf("-m MCS value\n");
@@ -675,7 +675,7 @@ int main(int argc, char **argv)
gNB->UL_INFO.crc_ind.crc_list = (nfapi_nr_crc_t *)malloc(NB_UE_INST*sizeof(nfapi_nr_crc_t));
gNB->UL_INFO.rx_ind.number_of_pdus = 0;
gNB->UL_INFO.crc_ind.number_crcs = 0;
gNB->fd_interpolation = fd_inter;
gNB->prb_interpolation = prb_inter;
frame_parms = &gNB->frame_parms; //to be initialized I suppose (maybe not necessary for PBCH)