From f53df3521f1714961f81ad45bb2dd76aa09a3cbb Mon Sep 17 00:00:00 2001
From: Raymond Knopp <knopp@eurecom.fr>
Date: Wed, 30 Dec 2015 09:53:48 +0100
Subject: [PATCH] added 23.04 Ms/s sampling option to lte-softmodem (under
test)
---
targets/RT/USER/lte-softmodem.c | 28 +++++++++++++++++++++-------
1 file changed, 21 insertions(+), 7 deletions(-)
diff --git a/targets/RT/USER/lte-softmodem.c b/targets/RT/USER/lte-softmodem.c
index 2409f102a4..ca07b15e90 100644
--- a/targets/RT/USER/lte-softmodem.c
+++ b/targets/RT/USER/lte-softmodem.c
@@ -235,6 +235,7 @@ static int time_offset[4] = {0,0,0,0};
static char UE_flag=0;
//static uint8_t eNB_id=0,UE_id=0;
+static char threequarter_fs=0;
uint32_t downlink_frequency[MAX_NUM_CCs][4];
int32_t uplink_frequency_offset[MAX_NUM_CCs][4];
@@ -909,13 +910,13 @@ void do_OFDM_mod_rt(int subframe,PHY_VARS_eNB *phy_vars_eNB)
if (phy_vars_eNB->lte_frame_parms.Ncp == EXTENDED) {
PHY_ofdm_mod(&phy_vars_eNB->lte_eNB_common_vars.txdataF[0][aa][slot_offset_F],
dummy_tx_b,
- phy_vars_eNB->lte_frame_parms.log2_symbol_size,
+ phy_vars_eNB->lte_frame_parms.ofdm_symbol_size,
6,
phy_vars_eNB->lte_frame_parms.nb_prefix_samples,
CYCLIC_PREFIX);
PHY_ofdm_mod(&phy_vars_eNB->lte_eNB_common_vars.txdataF[0][aa][slot_offset_F+slot_sizeF],
dummy_tx_b+(phy_vars_eNB->lte_frame_parms.samples_per_tti>>1),
- phy_vars_eNB->lte_frame_parms.log2_symbol_size,
+ phy_vars_eNB->lte_frame_parms.ofdm_symbol_size,
6,
phy_vars_eNB->lte_frame_parms.nb_prefix_samples,
CYCLIC_PREFIX);
@@ -2060,7 +2061,7 @@ static void get_options (int argc, char **argv)
{NULL, 0, NULL, 0}
};
- while ((c = getopt_long (argc, argv, "A:a:C:dK:g:F:G:hqO:m:SUVRM:r:P:Ws:t:Tx:",long_options,NULL)) != -1) {
+ while ((c = getopt_long (argc, argv, "A:a:C:dEK:g:F:G:hqO:m:SUVRM:r:P:Ws:t:Tx:",long_options,NULL)) != -1) {
switch (c) {
case LONG_OPTION_MAXPOWER:
tx_max_power[0]=atoi(optarg);
@@ -2162,6 +2163,10 @@ static void get_options (int argc, char **argv)
printf("Running with XFORMS!\n");
#endif
break;
+
+ case 'E':
+ threequarter_fs=1;
+ break;
case 'K':
#if defined(ENABLE_ITTI)
@@ -2671,6 +2676,7 @@ int main( int argc, char **argv )
frame_parms[CC_id]->pusch_config_common.ul_ReferenceSignalsPUSCH.groupHoppingEnabled = 0;
frame_parms[CC_id]->pusch_config_common.ul_ReferenceSignalsPUSCH.sequenceHoppingEnabled = 0;
frame_parms[CC_id]->pusch_config_common.ul_ReferenceSignalsPUSCH.groupAssignmentPUSCH = 0;
+ frame_parms[CC_id]->threequarter_fs = threequarter_fs;
init_ul_hopping(frame_parms[CC_id]);
init_frame_parms(frame_parms[CC_id],1);
// phy_init_top(frame_parms[CC_id]);
@@ -2876,10 +2882,18 @@ int main( int argc, char **argv )
for (card=0; card<MAX_CARDS; card++) {
if(frame_parms[0]->N_RB_DL == 100) {
- openair0_cfg[card].sample_rate=30.72e6;
- openair0_cfg[card].samples_per_frame = 307200;
- openair0_cfg[card].tx_bw = 10e6;
- openair0_cfg[card].rx_bw = 10e6;
+ if (frame_parms[0]->threequarter_fs) {
+ openair0_cfg[card].sample_rate=23.04e6;
+ openair0_cfg[card].samples_per_frame = 230400;
+ openair0_cfg[card].tx_bw = 10e6;
+ openair0_cfg[card].rx_bw = 10e6;
+ }
+ else {
+ openair0_cfg[card].sample_rate=30.72e6;
+ openair0_cfg[card].samples_per_frame = 307200;
+ openair0_cfg[card].tx_bw = 10e6;
+ openair0_cfg[card].rx_bw = 10e6;
+ }
} else if(frame_parms[0]->N_RB_DL == 50) {
openair0_cfg[card].sample_rate=15.36e6;
openair0_cfg[card].samples_per_frame = 153600;
--
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