Skip to content

O
OpenXG-RAN
Commit 43327686 authored by Xiwen JIANG's avatar Xiwen JIANG
Browse files
Options

TDD workaround (unfinished)

parent 22868cc1
Hide whitespace changes
Inline Side-by-side
Showing with 41 additions and 28 deletions
openair1/PHY/INIT/lte_init.c
View file @ 43327686
......@@ -1362,6 +1362,7 @@ int phy_init_lte_eNB(PHY_VARS_eNB *eNB,
if (eNB->node_function != NGFI_RCC_IF4p5) {
common_vars->rxdata[eNB_id] = (int32_t**)malloc16(fp->nb_antennas_rx*sizeof(int32_t*) );
common_vars->rxdata_7_5kHz[eNB_id] = (int32_t**)malloc16(fp->nb_antennas_rx*sizeof(int32_t*) );
common_vars->rxdata_1_4fs[eNB_id] = (int32_t**)malloc16(fp->nb_antennas_rx*sizeof(int32_t*) );
}
common_vars->rxdataF[eNB_id] = (int32_t**)malloc16(fp->nb_antennas_rx*sizeof(int32_t*) );
......@@ -1369,9 +1370,11 @@ int phy_init_lte_eNB(PHY_VARS_eNB *eNB,
if (eNB->node_function != NGFI_RCC_IF4p5) {
common_vars->rxdata[eNB_id][i] = (int32_t*)malloc16_clear( fp->samples_per_tti*10*sizeof(int32_t) );
common_vars->rxdata_7_5kHz[eNB_id][i] = (int32_t*)malloc16_clear( fp->samples_per_tti*sizeof(int32_t) );
common_vars->rxdata_1_4fs[eNB_id][i] = (int32_t*)malloc16_clear( fp->samples_per_tti*sizeof(int32_t) );
#ifdef DEBUG_PHY
printf("[openair][LTE_PHY][INIT] common_vars->rxdata[%d][%d] = %p\n",eNB_id,i,common_vars->rxdata[eNB_id][i]);
printf("[openair][LTE_PHY][INIT] common_vars->rxdata_7_5kHz[%d][%d] = %p\n",eNB_id,i,common_vars->rxdata_7_5kHz[eNB_id][i]);
printf("[openair][LTE_PHY][INIT] common_vars->rxdata_1_4fs[%d][%d] = %p\n",eNB_id,i,common_vars->rxdata_1_4fs[eNB_id][i]);
#endif
}
common_vars->rxdataF[eNB_id][i] = (int32_t*)malloc16_clear(sizeof(int32_t)*(fp->ofdm_symbol_size*fp->symbols_per_tti) );
......
openair1/PHY/LTE_TRANSPORT/prach.c
View file @ 43327686
......@@ -1127,7 +1127,12 @@ void rx_prach(PHY_VARS_eNB *eNB,
// int en;
for (aa=0; aa<nb_ant_rx; aa++) {
if ((eNB->rfdevice.type == EXMIMO_DEV) && (eNB->frame_parms.frame_type == TDD)) { //TDD workaround
remove_1_4_fs(eNB,subframe<<1); // TDD workaround for EXMIMO2 card
remove_1_4_fs(eNB,1+(subframe<<1));
}
for (aa=0; aa<nb_ant_rx; aa++) {
prach[aa] = (int16_t*)&eNB->common_vars.rxdata[0][aa][subframe*eNB->frame_parms.samples_per_tti-eNB->N_TA_offset];
}
......
openair1/PHY/MODULATION/gen_1_4_fs.m
View file @ 43327686
......@@ -92,13 +92,15 @@ function [s_n2, s_e2] = gen_sig(RB)
ofdm_size = ofdm_size*ratio;
len = len*ratio;
s_n0 = floor(32767*exp(-sqrt(-1)*2*pi*(-cp0:ofdm_size-1)*(0.25+7.5e3/samplerate)));
s_n1 = floor(32767*exp(-sqrt(-1)*2*pi*(-cp:ofdm_size-1)*(0.25+7.5e3/samplerate)));
%s_n0 = floor(32767*exp(-sqrt(-1)*2*pi*(-cp0:ofdm_size-1)*(0.25+7.5e3/samplerate)));
%s_n1 = floor(32767*exp(-sqrt(-1)*2*pi*(-cp:ofdm_size-1)*(0.25+7.5e3/samplerate)));
s_n0 = floor(32767*exp(-sqrt(-1)*2*pi*(-cp0:ofdm_size-1)*(0.25)));
s_n1 = floor(32767*exp(-sqrt(-1)*2*pi*(-cp:ofdm_size-1)*(0.25)));
s_n = [s_n0 s_n1 s_n1 s_n1 s_n1 s_n1 s_n1];
s_n2 = zeros(1, 2*len);
s_n2(1:2:end) = real(s_n);
s_n2(2:2:end) = imag(s_n);
s_e = floor(32767*exp(-sqrt(-1)*2*pi*(-cpe:ofdm_size-1)*(0.25+7.5e3/samplerate)));
s_e = floor(32767*exp(-sqrt(-1)*2*pi*(-cpe:ofdm_size-1)*(0.25)));
s_e = [s_e s_e s_e s_e s_e s_e];
s_e2 = zeros(1, 2*len);
s_e2(1:2:end) = real(s_e);
......
openair1/PHY/MODULATION/ul_1_4_fs.c
View file @ 43327686
......@@ -38,7 +38,7 @@ short conjugate14_2[8]__attribute__((aligned(16))) = {1,-1,1,-1,1,-1,1,-1} ;
void remove_1_4_fs(PHY_VARS_eNB *eNB,uint8_t slot)
{
int32_t **rxdata=eNB->common_vars.rxdata[0];
int32_t **rxdata_1_4fs=eNB->common_vars.rxdata_7_5kHz[0];
int32_t **rxdata_1_4fs=eNB->common_vars.rxdata[0];
uint16_t len;
uint32_t *fs1_4ptr;
#if defined(__x86_64__) || defined(__i386__)
......@@ -87,7 +87,7 @@ void remove_1_4_fs(PHY_VARS_eNB *eNB,uint8_t slot)
slot_offset = (uint32_t)slot * frame_parms->samples_per_tti/2-eNB->N_TA_offset;
slot_offset2 = (uint32_t)(slot&1) * frame_parms->samples_per_tti/2;
//slot_offset2 = (uint32_t)(slot&1) * frame_parms->samples_per_tti/2;
len = frame_parms->samples_per_tti/2;
......@@ -95,11 +95,11 @@ void remove_1_4_fs(PHY_VARS_eNB *eNB,uint8_t slot)
#if defined(__x86_64__) || defined(__i386__)
rxptr128 = (__m128i *)&rxdata[aa][slot_offset];
rxptr128_1_4fs = (__m128i *)&rxdata_1_4fs[aa][slot_offset2];
rxptr128_1_4fs = (__m128i *)&rxdata_1_4fs[aa][slot_offset];
fs1_4ptr128 = (__m128i *)fs1_4ptr;
#elif defined(__arm__)
rxptr128 = (int16x8_t *)&rxdata[aa][slot_offset];
rxptr128_1_4fs = (int16x8_t *)&rxdata_1_4fs[aa][slot_offset2];
rxptr128_1_4fs = (int16x8_t *)&rxdata_1_4fs[aa][slot_offset];
fs1_4ptr128 = (int16x8_t *)fs1_4ptr;
#endif
// remove 7.5 kHz + 1/4*fs
......
openair1/SCHED/phy_procedures_lte_eNb.c
View file @ 43327686
......@@ -2583,6 +2583,9 @@ void fep0(PHY_VARS_eNB *eNB,int slot) {
int l;
// printf("fep0: slot %d\n",slot);
if ((eNB->rfdevice.type == EXMIMO_DEV) && (eNB->frame_parms.frame_type == TDD))
remove_1_4_fs(eNB,(slot&+1)+(proc->subframe_rx<<1)); // TDD workaround for EXMIMO2 card
remove_7_5_kHz(eNB,(slot&1)+(proc->subframe_rx<<1));
for (l=0; l<fp->symbols_per_tti/2; l++) {
slot_fep_ul(fp,
......@@ -2724,6 +2727,12 @@ void eNB_fep_full(PHY_VARS_eNB *eNB) {
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_ENB_SLOT_FEP,1);
start_meas(&eNB->ofdm_demod_stats);
// TDD workaround
if ((eNB->rfdevice.type == EXMIMO_DEV) && (eNB->frame_parms.frame_type == TDD)) {
remove_1_4_fs(eNB,proc->subframe_rx<<1); // TDD workaround for EXMIMO2 card
remove_1_4_fs(eNB,1+(proc->subframe_rx<<1));
}
remove_7_5_kHz(eNB,proc->subframe_rx<<1);
remove_7_5_kHz(eNB,1+(proc->subframe_rx<<1));
......
targets/ARCH/EXMIMO/USERSPACE/LIB/openair0_lib.c
View file @ 43327686
......@@ -839,9 +839,9 @@ int openair0_config(openair0_config_t *openair0_cfg, int UE_flag)
tx_filter = TXLPF5;
} else if (openair0_cfg[card].sample_rate==7.68e6) {
resampling_factor = 2;
//if (openair0_cfg[card].duplex_mode==duplex_mode_TDD) // TDD workaround for EXMIMO
// rx_filter = RXLPF5;
//else
if (openair0_cfg[card].duplex_mode==duplex_mode_TDD) // TDD workaround for EXMIMO
rx_filter = RXLPF5;
else
rx_filter = RXLPF25;
tx_filter = TXLPF25;
} else {
......@@ -899,8 +899,8 @@ int openair0_config(openair0_config_t *openair0_cfg, int UE_flag)
p_exmimo_config->rf.rf_freq_rx[ant] = (unsigned int)openair0_cfg[card].rx_freq[ant];
// TDD workaround
//if (openair0_cfg[card].duplex_mode==duplex_mode_TDD)
// p_exmimo_config->rf.rf_freq_rx[ant] += openair0_cfg[card].sample_rate/4;
if (openair0_cfg[card].duplex_mode==duplex_mode_TDD)
p_exmimo_config->rf.rf_freq_rx[ant] -= openair0_cfg[card].sample_rate/4;
switch (openair0_cfg[card].rxg_mode[ant]) {
default:
......
targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band38.tm1.exmimo2.conf
View file @ 43327686
......@@ -32,7 +32,7 @@ eNBs =
prefix_type = "NORMAL";
eutra_band = 38;
downlink_frequency = 2580000000L;
uplink_frequency_offset = 0; //-120000000;
uplink_frequency_offset = -350;//1920000; //0; //-120000000;
Nid_cell = 0;
N_RB_DL = 25;
Nid_cell_mbsfn = 0;
......
targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band38.tm7.exmimo2.conf
View file @ 43327686
......@@ -32,7 +32,7 @@ eNBs =
prefix_type = "NORMAL";
eutra_band = 38;
downlink_frequency = 2580000000L;
uplink_frequency_offset = -1920000; //-120000000;
uplink_frequency_offset = 0; //-1920000; //-120000000;
Nid_cell = 0;
N_RB_DL = 25;
Nid_cell_mbsfn = 0;
......
targets/RT/USER/eNB_exmimo2.gtkw
View file @ 43327686
[*]
[*] GTKWave Analyzer v3.3.58 (w)1999-2014 BSI
[*] Thu Jan 19 09:15:03 2017
[*] Wed Jan 18 09:49:05 2017
[*]
[dumpfile] "/tmp/openair_dump_eNB.vcd"
[dumpfile_mtime] "Thu Jan 19 08:56:09 2017"
[dumpfile_size] 239663092
[savefile] "/homes/kaltenbe/Devel/openair/openairinterface5g/targets/RT/USER/eNB_exmimo2.gtkw"
[timestart] 151032560000
[size] 1215 1000
[dumpfile_mtime] "Wed Jan 18 09:43:36 2017"
[dumpfile_size] 892531
[savefile] "/homes/jiangx/openair5G/openairinterface5g/targets/RT/USER/eNB_exmimo2.gtkw"
[timestart] 21256800000
[size] 1615 1026
[pos] -1 -1
*-21.445595 151034994068 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
*-22.787832 21257630000 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
[sst_width] 374
[signals_width] 262
[sst_expanded] 1
......
targets/RT/USER/lte-enb.c
View file @ 43327686
......@@ -573,12 +573,6 @@ static inline int rxtx(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc, char *thread_nam
start_meas(&softmodem_stats_rxtx_sf);
// ****************************************
// TDD workaround
//if ((eNB->rfdevice.type == EXMIMO_DEV) && (eNB->frame_parms.frame_type == TDD)) {
// remove_1_4_fs(eNB,proc->subframe_rx<<1); // TDD workaround for EXMIMO2 card
// remove_1_4_fs(eNB,1+(proc->subframe_rx<<1));
//}
// Common RX procedures subframe n
phy_procedures_eNB_common_RX(eNB);
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment