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This commit is contained in:
Xiwen JIANG
2015-09-09 11:37:24 +02:00
parent f905243047
commit 3a5eda8cae
8 changed files with 142 additions and 133 deletions
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openair1/PHY/LTE_ESTIMATION/lte_dl_bf_channel_estimation.c
+13 -10
View File
@@ -46,7 +46,7 @@ int lte_dl_bf_channel_estimation(PHY_VARS_UE *phy_vars_ue,
unsigned char aarx,l,lprime,nsymb,skip_half=0,sss_symb,pss_symb=0,rb_alloc_ind,harq_pid,uespec_pilots=0;
int beamforming_mode, ch_offset;
uint8_t subframe;
int8_t uespec_nushift, uespec_poffset=0, pil_offset;
int8_t uespec_nushift, uespec_poffset=0, pil_offset=0;
uint8_t pilot0,pilot1,pilot2,pilot3;
short ch[2], *pil, *rxF, *dl_bf_ch, *dl_bf_ch_prev;
@@ -81,7 +81,7 @@ int lte_dl_bf_channel_estimation(PHY_VARS_UE *phy_vars_ue,
subframe = Ns>>1;
if (beamforming_mode==7) {
// if (beamforming_mode==7) {
//generate ue specific pilots
lprime = symbol/3-1;
lte_dl_ue_spec_rx(phy_vars_ue,uespec_pilot,Ns,5,lprime,0,dlsch0_harq->nb_rb);
@@ -161,11 +161,12 @@ int lte_dl_bf_channel_estimation(PHY_VARS_UE *phy_vars_ue,
f2r = filt16_2r1;
break;
}
}
// beamforming mode extension
/* }
else if (beamforming_mode==0)
msg("lte_dl_bf_channel_estimation:No beamforming is performed.\n");
else
msg("lte_dl_bf_channel_estimation:Beamforming mode not supported yet.\n");
msg("lte_dl_bf_channel_estimation:Beamforming mode not supported yet.\n");*/
l=symbol;
@@ -183,20 +184,22 @@ int lte_dl_bf_channel_estimation(PHY_VARS_UE *phy_vars_ue,
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
rxF = (short *)&rxdataF[aarx][pil_offset + frame_parms->first_carrier_offset + symbol*frame_parms->ofdm_symbol_size];
pil = (short*)uespec_pilot;
pil = (short *)uespec_pilot;
dl_bf_ch = (short *)&dl_bf_ch_estimates[aarx][ch_offset];
memset(dl_bf_ch,0,4*(frame_parms->ofdm_symbol_size));
//memset(dl_bf_ch,0,2*(frame_parms->ofdm_symbol_size));
if (phy_vars_ue->high_speed_flag==0) // multiply previous channel estimate by ch_est_alpha
if (frame_parms->Ncp==0)
if (phy_vars_ue->high_speed_flag==0) {
// multiply previous channel estimate by ch_est_alpha
if (frame_parms->Ncp==0){
multadd_complex_vector_real_scalar(dl_bf_ch-(frame_parms->ofdm_symbol_size<<1),
phy_vars_ue->ch_est_alpha,dl_bf_ch-(frame_parms->ofdm_symbol_size<<1),
1,frame_parms->ofdm_symbol_size);
else
} else {
msg("lte_dl_bf_channel_estimation: beamforming channel estimation not supported for TM7 Extended CP.\n"); // phy_vars_ue->ch_est_beta should be defined equaling 1/3
}
}
//estimation and interpolation
if ((frame_parms->N_RB_DL&1) == 0) // even number of RBs
@@ -215,7 +218,7 @@ int lte_dl_bf_channel_estimation(PHY_VARS_UE *phy_vars_ue,
// For second half of RBs skip DC carrier
if (rb==(frame_parms->N_RB_DL>>1)) {
rxF = &rxdataF[aarx][(1 + (symbol*(frame_parms->ofdm_symbol_size)))];
rxF = (short *)&rxdataF[aarx][(1 + (symbol*(frame_parms->ofdm_symbol_size)))];
}
if (rb_alloc_ind==1) {
openair1/PHY/LTE_REFSIG/defs.h
+12 -2
View File
@@ -91,14 +91,14 @@ int lte_dl_cell_spec(PHY_VARS_eNB *phy_vars_eNB,
@param p antenna index
@param SS_flag Flag to indicate special subframe
*/
int lte_dl_ue_spec(PHY_VARS_eNB *phy_vars_eNB,
/*int lte_dl_ue_spec(PHY_VARS_eNB *phy_vars_eNB,
uint8_t UE_id,
mod_sym_t *output,
short amp,
uint8_t Ns,
uint8_t lprime,
uint8_t p,
int SS_flag);
int SS_flag);*/
/*! \brief This function generates the MBSFN reference signal sequence (36-211, Sec 6.10.1.2)
@param phy_vars_eNB Pointer to eNB variables
@@ -128,6 +128,16 @@ int lte_dl_cell_spec_rx(PHY_VARS_UE *phy_vars_ue,
unsigned char l,
unsigned char p);
/*!\brief This function generates the ue-specific reference signal
* sequence (36-211, Sec 6.10.3.1) for beamforming channel estimation upon reception
@param phy_vars_ue Pointer to UE variables
@param output Output vector for OFDM symbol (Frequency Domain)
@param Ns Slot number (0..19)
@param p antenna port intex
@param lprime symbol (0,1)
@param SS_flag Flag to indicate special subframe
@param nRB_PDSCH number of allocated PDSCH RBs
*/
int lte_dl_ue_spec_rx(PHY_VARS_UE *phy_vars_ue,
mod_sym_t *output,
unsigned char Ns,
openair1/PHY/LTE_REFSIG/lte_dl_ue_spec.c
+77 -81
View File
@@ -52,6 +52,7 @@
int Wbar_NCP[8][4] = {{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,-1,1},{-1,1,1,-1}};
/*
int lte_dl_ue_spec(PHY_VARS_eNB *phy_vars_eNB,
uint8_t UE_id,
mod_sym_t *output,
@@ -62,7 +63,7 @@ int lte_dl_ue_spec(PHY_VARS_eNB *phy_vars_eNB,
int SS_flag)
{
/* mod_sym_t qpsk[4],nqpsk[4];
mod_sym_t qpsk[4],nqpsk[4];
int16_t k=0,a;
int mprime,ind,ind_dword,ind_qpsk_symb;
unsigned nushift,kprime;
@@ -126,8 +127,9 @@ int lte_dl_ue_spec(PHY_VARS_eNB *phy_vars_eNB,
LOG_E(PHY,"Illegal p %d UE specific pilots\n",p);
}
return(0);*/
return(0);
}
*/
int lte_dl_ue_spec_rx(PHY_VARS_UE *phy_vars_ue,
@@ -139,7 +141,6 @@ int lte_dl_ue_spec_rx(PHY_VARS_UE *phy_vars_ue,
uint16_t nRB_PDSCH)
{
mod_sym_t qpsk[4],nqpsk[4],*qpsk_p,*output_p;
int16_t a;
int w,mprime,ind,l,ind_dword,ind_qpsk_symb,nPRB;
short pamp;
@@ -172,126 +173,123 @@ int lte_dl_ue_spec_rx(PHY_VARS_UE *phy_vars_ue,
output_p = output;
//for (lprime=0; lprime<2; lprime++) {
ind = 3*lprime*phy_vars_ue->lte_frame_parms.N_RB_DL;
l = lprime + ((Ns&1)<<1);
ind = 3*lprime*phy_vars_ue->lte_frame_parms.N_RB_DL;
l = lprime + ((Ns&1)<<1);
// loop over pairs of PRBs, this is the periodicity of the W_bar_NCP sequence
// unroll the computations for the 6 pilots, select qpsk or nqpsk as function of W_bar_NCP
for (nPRB=0; nPRB<phy_vars_ue->lte_frame_parms.N_RB_DL; nPRB+=2) {
// loop over pairs of PRBs, this is the periodicity of the W_bar_NCP sequence
// unroll the computations for the 6 pilots, select qpsk or nqpsk as function of W_bar_NCP
for (nPRB=0; nPRB<phy_vars_ue->lte_frame_parms.N_RB_DL; nPRB+=2) {
// First pilot
w = Wbar_NCP[p-7][l];
qpsk_p = (w==1) ? qpsk : nqpsk;
// First pilot
w = Wbar_NCP[p-7][l];
qpsk_p = (w==1) ? qpsk : nqpsk;
ind_dword = ind>>4;
ind_qpsk_symb = ind&0xf;
ind_dword = ind>>4;
ind_qpsk_symb = ind&0xf;
*output_p = qpsk_p[(phy_vars_ue->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3];
*output_p = qpsk_p[(phy_vars_ue->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3];
#ifdef DEBUG_DL_UESPEC
LOG_D(PHY,"Ns %d, l %d, m %d,ind_dword %d, ind_qpsk_symbol %d\n",
Ns,l,m,ind_dword,ind_qpsk_symb);
LOG_D(PHY,"index = %d\n",(phy_vars_eNB->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3);
LOG_D(PHY,"Ns %d, l %d, m %d,ind_dword %d, ind_qpsk_symbol %d\n",
Ns,l,m,ind_dword,ind_qpsk_symb);
LOG_D(PHY,"index = %d\n",(phy_vars_eNB->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3);
#endif
output_p++;
ind++;
output_p++;
ind++;
w = Wbar_NCP[p-7][3-l];
qpsk_p = (w==1) ? qpsk : nqpsk;
w = Wbar_NCP[p-7][3-l];
qpsk_p = (w==1) ? qpsk : nqpsk;
// Second pilot
ind_dword = ind>>4;
ind_qpsk_symb = ind&0xf;
// Second pilot
ind_dword = ind>>4;
ind_qpsk_symb = ind&0xf;
*output_p = qpsk_p[(phy_vars_ue->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3];
*output_p = qpsk_p[(phy_vars_ue->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3];
#ifdef DEBUG_DL_UESPEC
LOG_D(PHY,"Ns %d, l %d, m %d,ind_dword %d, ind_qpsk_symbol %d\n",
Ns,l,m,ind_dword,ind_qpsk_symb);
LOG_D(PHY,"index = %d\n",(phy_vars_ue->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3);
LOG_D(PHY,"Ns %d, l %d, m %d,ind_dword %d, ind_qpsk_symbol %d\n",
Ns,l,m,ind_dword,ind_qpsk_symb);
LOG_D(PHY,"index = %d\n",(phy_vars_ue->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3);
#endif
output_p++;
ind++;
output_p++;
ind++;
w = Wbar_NCP[p-7][l];
qpsk_p = (w==1) ? qpsk : nqpsk;
// Third pilot
ind_dword = ind>>4;
ind_qpsk_symb = ind&0xf;
w = Wbar_NCP[p-7][l];
qpsk_p = (w==1) ? qpsk : nqpsk;
// Third pilot
ind_dword = ind>>4;
ind_qpsk_symb = ind&0xf;
*output_p = qpsk_p[(phy_vars_ue->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3];
*output_p = qpsk_p[(phy_vars_ue->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3];
#ifdef DEBUG_DL_UESPEC
LOG_D(PHY,"Ns %d, l %d, m %d,ind_dword %d, ind_qpsk_symbol %d\n",
Ns,l,m,ind_dword,ind_qpsk_symb);
LOG_D(PHY,"index = %d\n",(phy_vars_eNB->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3);
LOG_D(PHY,"Ns %d, l %d, m %d,ind_dword %d, ind_qpsk_symbol %d\n",
Ns,l,m,ind_dword,ind_qpsk_symb);
LOG_D(PHY,"index = %d\n",(phy_vars_eNB->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3);
#endif
output_p++;
ind++;
output_p++;
ind++;
// Fourth pilot
w = Wbar_NCP[p-7][3-l];
qpsk_p = (w==1) ? qpsk : nqpsk;
// Fourth pilot
w = Wbar_NCP[p-7][3-l];
qpsk_p = (w==1) ? qpsk : nqpsk;
ind_dword = ind>>4;
ind_qpsk_symb = ind&0xf;
ind_dword = ind>>4;
ind_qpsk_symb = ind&0xf;
*output_p = qpsk_p[(phy_vars_ue->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3];
*output_p = qpsk_p[(phy_vars_ue->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3];
#ifdef DEBUG_DL_UESPEC
LOG_D(PHY,"Ns %d, l %d, m %d,ind_dword %d, ind_qpsk_symbol %d\n",
Ns,l,m,ind_dword,ind_qpsk_symb);
LOG_D(PHY,"index = %d\n",(phy_vars_ue->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3);
LOG_D(PHY,"Ns %d, l %d, m %d,ind_dword %d, ind_qpsk_symbol %d\n",
Ns,l,m,ind_dword,ind_qpsk_symb);
LOG_D(PHY,"index = %d\n",(phy_vars_ue->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3);
#endif
output_p++;
ind++;
output_p++;
ind++;
w = Wbar_NCP[p-7][l];
qpsk_p = (w==1) ? qpsk : nqpsk;
w = Wbar_NCP[p-7][l];
qpsk_p = (w==1) ? qpsk : nqpsk;
// Fifth pilot
ind_dword = ind>>4;
ind_qpsk_symb = ind&0xf;
// Fifth pilot
ind_dword = ind>>4;
ind_qpsk_symb = ind&0xf;
*output_p = qpsk_p[(phy_vars_ue->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3];
*output_p = qpsk_p[(phy_vars_ue->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3];
#ifdef DEBUG_DL_UESPEC
LOG_D(PHY,"Ns %d, l %d, m %d,ind_dword %d, ind_qpsk_symbol %d\n",
Ns,l,m,ind_dword,ind_qpsk_symb);
LOG_D(PHY,"index = %d\n",(phy_vars_ue->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3);
LOG_D(PHY,"Ns %d, l %d, m %d,ind_dword %d, ind_qpsk_symbol %d\n",
Ns,l,m,ind_dword,ind_qpsk_symb);
LOG_D(PHY,"index = %d\n",(phy_vars_ue->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3);
#endif
output_p++;
ind++;
output_p++;
ind++;
w = Wbar_NCP[p-7][3-l];
qpsk_p = (w==1) ? qpsk : nqpsk;
// Sixth pilot
ind_dword = ind>>4;
ind_qpsk_symb = ind&0xf;
w = Wbar_NCP[p-7][3-l];
qpsk_p = (w==1) ? qpsk : nqpsk;
// Sixth pilot
ind_dword = ind>>4;
ind_qpsk_symb = ind&0xf;
*output_p = qpsk_p[(phy_vars_ue->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3];
*output_p = qpsk_p[(phy_vars_ue->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3];
#ifdef DEBUG_DL_UESPEC
LOG_D(PHY,"Ns %d, l %d, m %d,ind_dword %d, ind_qpsk_symbol %d\n",
Ns,l,m,ind_dword,ind_qpsk_symb);
LOG_D(PHY,"index = %d\n",(phy_vars_ue->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3);
LOG_D(PHY,"Ns %d, l %d, m %d,ind_dword %d, ind_qpsk_symbol %d\n",
Ns,l,m,ind_dword,ind_qpsk_symb);
LOG_D(PHY,"index = %d\n",(phy_vars_ue->lte_gold_uespec_table[0][Ns][lprime][ind_dword]>>(2*ind_qpsk_symb))&3);
#endif
output_p++;
ind++;
}
// }
output_p++;
ind++;
}
} else {
LOG_E(PHY,"Special subframe not supported for UE specific pilots yet\n");
}
@@ -301,7 +299,6 @@ int lte_dl_ue_spec_rx(PHY_VARS_UE *phy_vars_ue,
output_p = output;
if (phy_vars_ue->lte_frame_parms.Ncp == NORMAL) {
//for (lprime=0;lprime<4;lprime++) {
for (mprime=0;mprime<3*nRB_PDSCH;mprime++) {
ind = 3*lprime*nRB_PDSCH+mprime;
@@ -310,10 +307,9 @@ int lte_dl_ue_spec_rx(PHY_VARS_UE *phy_vars_ue,
*output_p = qpsk[(phy_vars_ue->lte_gold_uespec_port5_table[Ns][ind_dword]>>(2*ind_qpsk_symb))&3];
//printf("lprime=%d,ind=%d,Ns=%d,output_p=(%d,%d)\n",lprime,ind,Ns,((short *)&output_p[0])[0],((short *)&output_p[0])[1]);
*output_p++;
output_p++;
}
// }
}
}
} else {
openair1/PHY/LTE_REFSIG/lte_gold.c
+5 -9
View File
@@ -145,30 +145,27 @@ void lte_gold_ue_spec(LTE_DL_FRAME_PARMS *frame_parms,uint32_t lte_gold_uespec_t
void lte_gold_ue_spec_port5(uint32_t lte_gold_uespec_port5_table[20][38],uint16_t Nid_cell, uint16_t n_rnti)
{
unsigned char ns,l;
unsigned char ns;
unsigned int n,x1,x2;
for (ns=0; ns<20; ns++) {
//for (l=0; l<2; l++) {
x2 = ((((ns>>1)+1)*((Nid_cell<<1)+1))<<16) + n_rnti;
//x2 = frame_parms->Ncp + (Nid_cell<<1) + (1+(Nid_cell<<1))*(1 + (3*l) + (7*(1+ns))); //cinit
//n = 0
// printf("cinit (ns %d, l %d) => %d\n",ns,l,x2);
//printf("cinit (ns %d, l %d) => %d\n",ns,l,x2);
x1 = 1+ (1<<31);
x2=x2 ^ ((x2 ^ (x2>>1) ^ (x2>>2) ^ (x2>>3))<<31);
// skip first 50 double words (1600 bits)
//skip first 50 double words (1600 bits)
//printf("n=0 : x1 %x, x2 %x\n",x1,x2);
for (n=1; n<50; n++) {
x1 = (x1>>1) ^ (x1>>4);
x1 = x1 ^ (x1<<31) ^ (x1<<28);
x2 = (x2>>1) ^ (x2>>2) ^ (x2>>3) ^ (x2>>4);
x2 = x2 ^ (x2<<31) ^ (x2<<30) ^ (x2<<29) ^ (x2<<28);
// printf("x1 : %x, x2 : %x\n",x1,x2);
//printf("x1 : %x, x2 : %x\n",x1,x2);
}
for (n=0; n<38; n++) {
@@ -177,10 +174,9 @@ void lte_gold_ue_spec_port5(uint32_t lte_gold_uespec_port5_table[20][38],uint16_
x2 = (x2>>1) ^ (x2>>2) ^ (x2>>3) ^ (x2>>4);
x2 = x2 ^ (x2<<31) ^ (x2<<30) ^ (x2<<29) ^ (x2<<28);
lte_gold_uespec_port5_table[ns][n] = x1^x2;
// printf("n=%d : c %x\n",n,x1^x2);
//printf("n=%d : c %x\n",n,x1^x2);
}
// }
}
}
openair1/PHY/LTE_TRANSPORT/dlsch_coding.c
+5 -5
View File
@@ -259,7 +259,7 @@ int dlsch_encoding(unsigned char *a,
unsigned char mod_order;
unsigned int Kr=0,Kr_bytes,r,r_offset=0;
unsigned short m=dlsch->harq_processes[harq_pid]->mcs;
uint8_t transmission_mode_7to9=0;
uint8_t beamforming_mode=0;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_ENB_DLSCH_ENCODING, VCD_FUNCTION_IN);
@@ -268,12 +268,12 @@ int dlsch_encoding(unsigned char *a,
mod_order = get_Qm(dlsch->harq_processes[harq_pid]->mcs);
if(dlsch->harq_processes[harq_pid]->mimo_mode == TM7)
transmission_mode_7to9 = 7;
beamforming_mode = 7;
else if(dlsch->harq_processes[harq_pid]->mimo_mode == TM8)
transmission_mode_7to9 = 8;
beamforming_mode = 8;
else if(dlsch->harq_processes[harq_pid]->mimo_mode == TM9_10)
transmission_mode_7to9 = 9;
G = get_G(frame_parms,nb_rb,dlsch->harq_processes[harq_pid]->rb_alloc,mod_order,dlsch->harq_processes[harq_pid]->Nl,num_pdcch_symbols,frame,subframe,transmission_mode_7to9);
beamforming_mode = 9;
G = get_G(frame_parms,nb_rb,dlsch->harq_processes[harq_pid]->rb_alloc,mod_order,dlsch->harq_processes[harq_pid]->Nl,num_pdcch_symbols,frame,subframe,beamforming_mode);
// if (dlsch->harq_processes[harq_pid]->Ndi == 1) { // this is a new packet
openair1/PHY/LTE_TRANSPORT/dlsch_demodulation.c
+3 -10
View File
@@ -338,8 +338,6 @@ int rx_pdsch(PHY_VARS_UE *phy_vars_ue,
aarx = frame_parms->nb_antennas_rx;
if (dlsch0_harq->mimo_mode<LARGE_CDD) {// SISO or ALAMOUTI
printf("dlsch compensation: symbol %d, dl_estimates_ext[0][300] %d \n",symbol, *(short*)&lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext[0][300]);
printf("dlsch compensation: symbol %d, dl_estimates_ext[0][2400] %d \n",symbol, lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext[0][2400]);
dlsch_channel_compensation(lte_ue_pdsch_vars[eNB_id]->rxdataF_ext,
lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext,
@@ -557,8 +555,6 @@ int rx_pdsch(PHY_VARS_UE *phy_vars_ue,
1);
}
} else if (dlsch0_harq->mimo_mode==TM7) { //TM7
printf("dlsch compensation: symbol %d, dl_bf_estimates_ext[0][300] %d \n",symbol, *(short*)&lte_ue_pdsch_vars[eNB_id]->dl_bf_ch_estimates_ext[0][300]);
printf("dlsch compensation: symbol %d, dl_bf_estimates_ext[0][2400] %d \n",symbol, lte_ue_pdsch_vars[eNB_id]->dl_bf_ch_estimates_ext[0][2400]);
dlsch_channel_compensation(lte_ue_pdsch_vars[eNB_id]->rxdataF_ext,
lte_ue_pdsch_vars[eNB_id]->dl_bf_ch_estimates_ext,
@@ -4236,9 +4232,9 @@ unsigned short dlsch_extract_rbs_TM7(int **rxdataF,
unsigned short rb,nb_rb=0;
unsigned char rb_alloc_ind;
unsigned char i,aarx,l,nsymb,skip_half=0,sss_symb,pss_symb=0;
int *dl_ch0,*dl_ch0_ext,*rxF,*rxF_ext,*rxF_uespec;
int *dl_ch0,*dl_ch0_ext,*rxF,*rxF_ext;
unsigned char symbol_mod,pilots=0,uespec_pilots=0,j=0,k=0,poffset=0,uespec_poffset=0;
unsigned char symbol_mod,pilots=0,uespec_pilots=0,j=0,poffset=0,uespec_poffset=0;
int8_t uespec_nushift = frame_parms->Nid_cell%3;
symbol_mod = (symbol>=(7-frame_parms->Ncp)) ? symbol-(7-frame_parms->Ncp) : symbol;
@@ -4340,7 +4336,7 @@ unsigned short dlsch_extract_rbs_TM7(int **rxdataF,
} else if (pilots==0 && uespec_pilots==1) {
j=0;
k=0;
for (i=0; i<12; i++){
if (frame_parms->Ncp==0){
@@ -4519,7 +4515,6 @@ unsigned short dlsch_extract_rbs_TM7(int **rxdataF,
} else if(pilots==0 && uespec_pilots==1){
//printf("Extracting with uespec pilots (symbol %d, rb %d, skip_half %d)\n",l,rb,skip_half);
j=0;
k=0;
if (skip_half==1) {
if (frame_parms->Ncp==0){
@@ -4685,7 +4680,6 @@ unsigned short dlsch_extract_rbs_TM7(int **rxdataF,
rxF_ext+=10;
} else if(pilots==0 && uespec_pilots==1) {
j=0;
k=0;
for (i=0; i<6; i++) {
if (frame_parms->Ncp==0){
@@ -4881,7 +4875,6 @@ unsigned short dlsch_extract_rbs_TM7(int **rxdataF,
}
} else if(pilots==0 && uespec_pilots==1) {
j=0;
k=0;
if (skip_half==1) {
if (frame_parms->Ncp==0){
openair1/PHY/LTE_TRANSPORT/dlsch_modulation.c
+6 -16
View File
@@ -916,15 +916,12 @@ break;
((int16_t*)&tmp_sample1)[1] = (x0[*jj]==1) ? (-gain_lin_QPSK) : gain_lin_QPSK;
*jj = *jj + 1;
//printf("%d(%d) : %d,%d => ",tti_offset,*jj,((int16_t*)&txdataF[0][tti_offset])[0],((int16_t*)&txdataF[0][tti_offset])[1]);
//printf("%d(%d) : %d,%d => ",tti_offset,*jj,((int16_t*)&tmp_sample1)[0],((int16_t*)&tmp_sample1)[1]);
for (aa=0; aa<nb_antennas_tx_phy; aa++) {
((int16_t*)&txdataF[aa][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample1)[0]*((uint16_t*)&beamforming_weights[re][aa])[0])>>15);
((int16_t*)&txdataF[aa][tti_offset])[0] +=-(int16_t)((((int16_t*)&tmp_sample1)[1]*((uint16_t*)&beamforming_weights[re][aa])[1])>>15);
((int16_t*)&txdataF[aa][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[0]*((uint16_t*)&beamforming_weights[re][aa])[1])>>15);
((int16_t*)&txdataF[aa][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[1]*((uint16_t*)&beamforming_weights[re][aa])[0])>>15);
/* ((int16_t*)&txdataF[aa][tti_offset])[0] = ((int16_t*)&tmp_sample1)[0];
((int16_t*)&txdataF[aa][tti_offset])[1] = ((int16_t*)&tmp_sample1)[1]; */
}
//printf("%d,%d\n",((int16_t*)&txdataF[0][tti_offset])[0],((int16_t*)&txdataF[0][tti_offset])[1]);
@@ -1028,7 +1025,6 @@ break;
ind_qpsk_symb = ind&0xf;
tmp_sample1 = qpsk[(phy_vars_eNB->lte_gold_uespec_port5_table[0][Ns][ind_dword]>>(2*ind_qpsk_symb))&3];
//printf("lprime=%d,nb_rb=%d,mprime2=%d,ind=%d,Ns=%d,tmp_sample1=(%d,%d)\n",lprime,dlsch0_harq->nb_rb,mprime2,ind,Ns,((int16_t*)&tmp_sample1)[0],((int16_t*)&tmp_sample1)[1]);
((int16_t*)&txdataF[aa][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample1)[0]*((uint16_t*)&beamforming_weights[re][aa])[0])>>15);
((int16_t*)&txdataF[aa][tti_offset])[0] +=-(int16_t)((((int16_t*)&tmp_sample1)[1]*((uint16_t*)&beamforming_weights[re][aa])[1])>>15);
@@ -1037,12 +1033,12 @@ break;
// ((int16_t*)&txdataF[aa][tti_offset])[0] = 0xffff;
// ((int16_t*)&txdataF[aa][tti_offset])[1] = 0xffff;
//printf("lprime=%d,nb_rb=%d,mprime2=%d,ind=%d,Ns=%d\n",lprime,dlsch0_harq->nb_rb,mprime2,ind,Ns);
//printf("tmp_sample1=(%d,%d)\n",((int16_t*)&tmp_sample1)[0],((int16_t*)&tmp_sample1)[1]);
//printf("beamforing_weights[%d][%d]=(%d,%d)\n",re,aa,((int16_t*)&beamforming_weights[re][aa])[0],((int16_t*)&beamforming_weights[re][aa])[1]);
//printf("txdataF[%d][%d]= (%d,%d)\n ",aa,tti_offset,((int16_t*)&txdataF[aa][tti_offset])[0],((int16_t*)&txdataF[aa][tti_offset])[1]);
//printf("tmp_sample1=%d+i%d\n",((int16_t*)&tmp_sample1)[0],((int16_t*)&tmp_sample1)[1]);
//printf("beamforing_weights[%d][%d]=%d+i%d\n",re,aa,((int16_t*)&beamforming_weights[re][aa])[0],((int16_t*)&beamforming_weights[re][aa])[1]);
//printf("txdataF[%d][%d]= %d+i%d\n ",aa,tti_offset,((int16_t*)&txdataF[aa][tti_offset])[0],((int16_t*)&txdataF[aa][tti_offset])[1]);
mprime2 = mprime2++;
mprime2++;
}
}
@@ -1284,7 +1280,7 @@ int dlsch_modulation(PHY_VARS_eNB* phy_vars_eNB,
uint16_t l,rb,re_offset;
uint32_t rb_alloc_ind;
uint32_t *rb_alloc = dlsch0_harq->rb_alloc;
uint8_t pilots=0,ue_spec_rs=0;
uint8_t pilots=0;
uint8_t skip_dc,skip_half;
uint8_t mod_order0 = get_Qm(dlsch0_harq->mcs);
uint8_t mod_order1 = 0;
@@ -1293,7 +1289,6 @@ int dlsch_modulation(PHY_VARS_eNB* phy_vars_eNB,
int16_t qam16_table_a1[4],qam64_table_a1[8],qam16_table_b1[4],qam64_table_b1[8];
int16_t *qam_table_s0,*qam_table_s1;
MIMO_mode_t mimo_mode = dlsch0_harq->mimo_mode;
uint8_t beamforming_mode = 0;
int32_t **beamforming_weights_RB = beamforming_weights;
uint8_t mprime=0,Ns;
int8_t lprime=-1;
@@ -1377,7 +1372,6 @@ int dlsch_modulation(PHY_VARS_eNB* phy_vars_eNB,
}
if(mimo_mode==TM7){ //36.211 V8.6.0 2009-03
beamforming_mode = 7;
mprime = 0;
if (frame_parms->Ncp==0) { // normal prefix
if (l==12)
@@ -1400,10 +1394,6 @@ int dlsch_modulation(PHY_VARS_eNB* phy_vars_eNB,
else
lprime=-1;
}
}else if(mimo_mode==TM8){
beamforming_mode = 8;
}else if(mimo_mode==TM9_10){
beamforming_mode = 9;
}
Ns = 2*subframe_offset+(l>=(nsymb>>1));
openair1/PHY/LTE_TRANSPORT/proto.h
+21
View File
@@ -921,6 +921,27 @@ uint16_t dlsch_extract_rbs_dual(int32_t **rxdataF,
uint32_t high_speed_flag,
LTE_DL_FRAME_PARMS *frame_parms);
/** \fn dlsch_extract_rbs_TM7(int32_t **rxdataF,
int32_t **dl_bf_ch_estimates,
int32_t **rxdataF_ext,
int32_t **dl_bf_ch_estimates_ext,
uint32_t *rb_alloc,
uint8_t symbol,
uint8_t subframe,
uint32_t high_speed_flag,
LTE_DL_FRAME_PARMS *frame_parms)
\brief This function extracts the received resource blocks, both channel estimates and data symbols,
for the current allocation and for single antenna eNB transmission.
@param rxdataF Raw FFT output of received signal
@param dl_bf_ch_estimates Beamforming channel estimates of current slot
@param rxdataF_ext FFT output for RBs in this allocation
@param dl_bf_ch_estimates_ext Beamforming channel estimates for RBs in this allocation
@param rb_alloc RB allocation vector
@param symbol Symbol to extract
@param subframe Subframe number
@param high_speed_flag
@param frame_parms Pointer to frame descriptor
*/
uint16_t dlsch_extract_rbs_TM7(int32_t **rxdataF,
int32_t **dl_bf_ch_estimates,
int32_t **rxdataF_ext,