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Generalize some frame parameter calculations

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Enabling more numerology combinations and 100 MHz support with 3/4 sampling for USRP X300/X310, too.
This commit is contained in:
Thomas Schlichter
2021-02-08 14:21:30 +01:00
parent 3743ead91a
commit 3eb2b4d7b2
6 changed files with 211 additions and 438 deletions
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executables/nr-uesoftmodem.c
+6 -86
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@@ -145,7 +145,6 @@ int chain_offset = 0;
int card_offset = 0;
uint64_t num_missed_slots = 0; // counter for the number of missed slots
int transmission_mode = 1;
int numerology = 0;
int usrp_tx_thread = 0;
int oaisim_flag = 0;
int emulate_rf = 0;
@@ -316,90 +315,10 @@ void init_openair0(void) {
for (card=0; card<MAX_CARDS; card++) {
uint64_t dl_carrier, ul_carrier;
openair0_cfg[card].configFilename = NULL;
openair0_cfg[card].threequarter_fs = frame_parms->threequarter_fs;
numerology = frame_parms->numerology_index;
if(frame_parms->N_RB_DL == 24) {
if (numerology==1) {
openair0_cfg[card].sample_rate=15.36e6;
openair0_cfg[card].samples_per_frame = 153600;
} else {
LOG_E(PHY,"Unsupported numerology!\n");
exit(-1);
}
}else if(frame_parms->N_RB_DL == 66) {
if (numerology==3) {
openair0_cfg[card].sample_rate=122.88e6;
openair0_cfg[card].samples_per_frame = 1228800;
} else {
LOG_E(PHY,"Unsupported numerology! FR2 supports only 120KHz SCS for now.\n");
exit(-1);
}
}else if(frame_parms->N_RB_DL == 32) {
if (numerology==3) {
openair0_cfg[card].sample_rate=61.44e6;
openair0_cfg[card].samples_per_frame = 614400;
} else {
LOG_E(PHY,"Unsupported numerology! FR2 supports only 120KHz SCS for now.\n");
exit(-1);
}
}else if(frame_parms->N_RB_DL == 217) {
if (numerology==1) {
if (frame_parms->threequarter_fs) {
openair0_cfg[card].sample_rate=92.16e6;
openair0_cfg[card].samples_per_frame = 921600;
}
else {
openair0_cfg[card].sample_rate=122.88e6;
openair0_cfg[card].samples_per_frame = 1228800;
}
} else {
LOG_E(PHY,"Unsupported numerology!\n");
exit(-1);
}
} else if(frame_parms->N_RB_DL == 273) {
if (numerology==1) {
if (frame_parms->threequarter_fs) {
AssertFatal(0 == 1,"three quarter sampling not supported for N_RB 273\n");
}
else {
openair0_cfg[card].sample_rate=122.88e6;
openair0_cfg[card].samples_per_frame = 1228800;
}
} else {
LOG_E(PHY,"Unsupported numerology!\n");
exit(-1);
}
} else if(frame_parms->N_RB_DL == 106) {
if (numerology==0) {
if (frame_parms->threequarter_fs) {
openair0_cfg[card].sample_rate=23.04e6;
openair0_cfg[card].samples_per_frame = 230400;
} else {
openair0_cfg[card].sample_rate=30.72e6;
openair0_cfg[card].samples_per_frame = 307200;
}
} else if (numerology==1) {
if (frame_parms->threequarter_fs) {
openair0_cfg[card].sample_rate=46.08e6;
openair0_cfg[card].samples_per_frame = 460800;
}
else {
openair0_cfg[card].sample_rate=61.44e6;
openair0_cfg[card].samples_per_frame = 614400;
}
} else if (numerology==2) {
openair0_cfg[card].sample_rate=122.88e6;
openair0_cfg[card].samples_per_frame = 1228800;
} else {
LOG_E(PHY,"Unsupported numerology!\n");
exit(-1);
}
}
else {
LOG_E(PHY,"Unknown NB_RB %d!\n",frame_parms->N_RB_DL);
exit(-1);
}
openair0_cfg[card].configFilename = NULL;
openair0_cfg[card].threequarter_fs = frame_parms->threequarter_fs;
openair0_cfg[card].sample_rate = frame_parms->samples_per_subframe * 1e3;
openair0_cfg[card].samples_per_frame = frame_parms->samples_per_frame;
if (frame_parms->frame_type==TDD)
openair0_cfg[card].duplex_mode = duplex_mode_TDD;
@@ -413,8 +332,9 @@ void init_openair0(void) {
openair0_cfg[card].tx_num_channels = min(2, frame_parms->nb_antennas_tx);
openair0_cfg[card].rx_num_channels = min(2, frame_parms->nb_antennas_rx);
LOG_I(PHY, "HW: Configuring card %d, tx/rx num_channels %d/%d, duplex_mode %s\n",
LOG_I(PHY, "HW: Configuring card %d, sample_rate %f, tx/rx num_channels %d/%d, duplex_mode %s\n",
card,
openair0_cfg[card].sample_rate,
openair0_cfg[card].tx_num_channels,
openair0_cfg[card].rx_num_channels,
duplex_mode[openair0_cfg[card].duplex_mode]);