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OpenXG-RAN
Commit 40878776 authored by Vincent Savaux's avatar Vincent Savaux
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adapt extract_rbs in ulsch demod to any subcarrier config

parent 1341f704
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Showing with 51 additions and 29 deletions
openair1/PHY/LTE_TRANSPORT/defs_NB_IoT.h
View file @ 40878776
......@@ -690,14 +690,16 @@ typedef struct {
// int calibration_flag;
/// delta_TF for power control
int32_t delta_TF;
///////////////////////////////////////////// 3 parameter added by vincent ///////////////////////////////////////////////
///////////////////////////////////////////// 4 parameter added by vincent ///////////////////////////////////////////////
// NB_IoT: Nsymb_UL and Nslot_UL are defined in 36.211, Section 10.1.2.3, Table 10.1.2.3-1
// The number of symbol in a resource unit is given by Nsymb_UL*Nslot_UL
uint8_t Nsymb_UL;
// Number of NPUSCH slots
uint8_t Nslot_UL;
// Number of subcarrier for NPUSH
uint8_t N_sc_RU;
// Number of subcarrier for NPUSH, can be 1, 3, 6, 12
uint8_t N_sc_RU;
// index of UL NB_IoT resource block
uint32_t UL_RB_ID_NB_IoT;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
} NB_IoT_UL_eNB_HARQ_t;
......
openair1/PHY/LTE_TRANSPORT/proto_NB_IoT.h
View file @ 40878776
......@@ -220,7 +220,9 @@ void rx_ulsch_NB_IoT(PHY_VARS_eNB_NB_IoT *phy_vars_eNB,
void ulsch_extract_rbs_single_NB_IoT(int32_t **rxdataF,
int32_t **rxdataF_ext,
uint32_t first_rb,
// uint32_t first_rb,
uint32_t UL_RB_ID_NB_IoT, // index of UL NB_IoT resource block
uint8_t N_sc_RU, // number of subcarriers in UL
uint32_t nb_rb,
uint8_t l,
uint8_t Ns,
......
openair1/PHY/LTE_TRANSPORT/ulsch_demodulation_NB_IoT.c
View file @ 40878776
......@@ -546,49 +546,65 @@ void ulsch_detection_mrc_NB_IoT(NB_IoT_DL_FRAME_PARMS *frame_parms,
void ulsch_extract_rbs_single_NB_IoT(int32_t **rxdataF,
int32_t **rxdataF_ext,
uint32_t first_rb,
// uint32_t first_rb,
uint32_t UL_RB_ID_NB_IoT, // index of UL NB_IoT resource block
uint8_t N_sc_RU, // number of subcarriers in UL
uint32_t nb_rb,
uint8_t l,
uint8_t Ns,
NB_IoT_DL_FRAME_PARMS *frame_parms)
{
uint16_t nb_rb1,nb_rb2;
uint8_t aarx;
int32_t *rxF,*rxF_ext;
uint16_t nb_rb1;
// uint16_t nb_rb2;
uint8_t aarx,n;
// int32_t *rxF,*rxF_ext;
//uint8_t symbol = l+Ns*frame_parms->symbols_per_tti/2;
uint8_t symbol = l+((7-frame_parms->Ncp)*(Ns&1)); ///symbol within sub-frame
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
nb_rb1 = cmin(cmax((int)(frame_parms->N_RB_UL) - (int)(2*UL_RB_ID_NB_IoT),(int)0),(int)(2)); // 2 times no. RBs before the DC
// 2 times no. RBs after the DC
nb_rb1 = cmin(cmax((int)(frame_parms->N_RB_UL) - (int)(2*first_rb),(int)0),(int)(2*nb_rb)); // 2 times no. RBs before the DC
nb_rb2 = 2*nb_rb - nb_rb1; // 2 times no. RBs after the DC
// rxF_ext = &rxdataF_ext[aarx][(symbol*frame_parms->N_RB_UL*12)];
rxF_ext = &rxdataF_ext[aarx][(symbol*frame_parms->N_RB_UL*12)];
if (nb_rb1) { // RB NB-IoT is in the first half
if (nb_rb1) {
rxF = &rxdataF[aarx][(first_rb*12 + frame_parms->first_carrier_offset + symbol*frame_parms->ofdm_symbol_size)];
memcpy(rxF_ext, rxF, nb_rb1*6*sizeof(int));
rxF_ext += nb_rb1*6;
for (n=0;n<N_sc_RU;n++){
// Note that FFT split the RBs
rxdataF_ext[aarx][symbol*frame_parms->N_RB_UL*12 + n] = rxdataF[aarx][UL_RB_ID_NB_IoT*12 + frame_parms->first_carrier_offset + symbol*frame_parms->ofdm_symbol_size + n];
}
if (nb_rb2) {
//#ifdef OFDMA_ULSCH
// rxF = &rxdataF[aarx][(1 + symbol*frame_parms->ofdm_symbol_size)*2];
//#else
rxF = &rxdataF[aarx][(symbol*frame_parms->ofdm_symbol_size)];
//#endif
memcpy(rxF_ext, rxF, nb_rb2*6*sizeof(int));
rxF_ext += nb_rb2*6;
// rxF = &rxdataF[aarx][(first_rb*12 + frame_parms->first_carrier_offset + symbol*frame_parms->ofdm_symbol_size)];
// memcpy(rxF_ext, rxF, nb_rb1*6*sizeof(int));
// rxF_ext += nb_rb1*6;
// if (nb_rb2) {
// //#ifdef OFDMA_ULSCH
// // rxF = &rxdataF[aarx][(1 + symbol*frame_parms->ofdm_symbol_size)*2];
// //#else
// rxF = &rxdataF[aarx][(symbol*frame_parms->ofdm_symbol_size)];
// //#endif
// memcpy(rxF_ext, rxF, nb_rb2*6*sizeof(int));
// rxF_ext += nb_rb2*6;
// }
} else { // RB NB-IoT is in the second half
for (n=0;n<N_sc_RU;n++){
// Note that FFT split the RBs
rxdataF_ext[aarx][symbol*frame_parms->N_RB_UL*12 + n] = rxdataF[aarx][6*(2*UL_RB_ID_NB_IoT - frame_parms->N_RB_UL) + symbol*frame_parms->ofdm_symbol_size + n];
}
} else { //there is only data in the second half
//#ifdef OFDMA_ULSCH
// rxF = &rxdataF[aarx][(1 + 6*(2*first_rb - frame_parms->N_RB_UL) + symbol*frame_parms->ofdm_symbol_size)*2];
//#else
rxF = &rxdataF[aarx][(6*(2*first_rb - frame_parms->N_RB_UL) + symbol*frame_parms->ofdm_symbol_size)];
//#endif
memcpy(rxF_ext, rxF, nb_rb2*6*sizeof(int));
rxF_ext += nb_rb2*6;
// rxF = &rxdataF[aarx][(6*(2*first_rb - frame_parms->N_RB_UL) + symbol*frame_parms->ofdm_symbol_size)];
// //#endif
// memcpy(rxF_ext, rxF, nb_rb2*6*sizeof(int));
// rxF_ext += nb_rb2*6;
}
}
......@@ -1417,7 +1433,9 @@ void rx_ulsch_NB_IoT(PHY_VARS_eNB_NB_IoT *eNB,
ulsch_extract_rbs_single_NB_IoT(common_vars->rxdataF[eNB_id],
pusch_vars->rxdataF_ext[eNB_id],
ulsch[UE_id]->harq_process->first_rb,
// ulsch[UE_id]->harq_process->first_rb,
ulsch[UE_id]->harq_process->UL_RB_ID_NB_IoT, // index of UL NB_IoT resource block
ulsch[UE_id]->harq_process-> N_sc_RU, // number of subcarriers in UL
ulsch[UE_id]->harq_process->nb_rb,
l%(frame_parms->symbols_per_tti/2),
l/(frame_parms->symbols_per_tti/2),
......
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