PSBCH RX TX and SLSS search procedures
- RX/TX Phy processing accg to 38.211, 38.212 Rel16 - PSBCH simulator used to validate TX/RX phy processing - PSBCH SLSS Search procedures - PSBCH SIM also tests SLSS SEARCH
This commit is contained in:
Raghavendra Dinavahi
committed by
Robert Schmidt
Robert Schmidt
parent
1244c9a278
commit
94b23d1eb0
@@ -49,9 +49,17 @@ int slot_fep(PHY_VARS_UE *phy_vars_ue,
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int reset_freq_est);
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int nr_slot_fep(PHY_VARS_NR_UE *ue,
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NR_DL_FRAME_PARMS *frame_parms,
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const UE_nr_rxtx_proc_t *proc,
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unsigned char symbol,
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c16_t rxdataF[][ue->frame_parms.samples_per_slot_wCP]);
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c16_t rxdataF[][frame_parms->samples_per_slot_wCP],
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uint32_t linktype);
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int sl_nr_slot_fep(PHY_VARS_NR_UE *ue,
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UE_nr_rxtx_proc_t *proc,
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unsigned char symbol,
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unsigned char Ns,
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uint32_t sample_offset,
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c16_t rxdataF[][ue->SL_UE_PHY_PARAMS.sl_frame_params.samples_per_slot_wCP]);
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int nr_slot_fep_init_sync(PHY_VARS_NR_UE *ue,
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const UE_nr_rxtx_proc_t *proc,
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@@ -34,12 +34,106 @@
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#define LOG_I(A,B...) printf(A)
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#endif*/
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int sl_nr_slot_fep(PHY_VARS_NR_UE *ue,
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UE_nr_rxtx_proc_t *proc,
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unsigned char symbol,
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unsigned char Ns,
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uint32_t sample_offset,
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c16_t rxdataF[][ue->SL_UE_PHY_PARAMS.sl_frame_params.samples_per_slot_wCP])
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{
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NR_DL_FRAME_PARMS *frame_params = &ue->SL_UE_PHY_PARAMS.sl_frame_params;
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NR_UE_COMMON *common_vars = &ue->common_vars;
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AssertFatal(symbol < frame_params->symbols_per_slot, "slot_fep: symbol must be between 0 and %d\n", frame_params->symbols_per_slot-1);
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AssertFatal(Ns < frame_params->slots_per_frame, "slot_fep: Ns must be between 0 and %d\n", frame_params->slots_per_frame-1);
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unsigned int nb_prefix_samples = frame_params->nb_prefix_samples;
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unsigned int nb_prefix_samples0 = frame_params->nb_prefix_samples0;
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dft_size_idx_t dftsize = get_dft(frame_params->ofdm_symbol_size);
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// This is for misalignment issues
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int32_t tmp_dft_in[8192] __attribute__ ((aligned (32)));
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unsigned int rx_offset = frame_params->get_samples_slot_timestamp(Ns,frame_params,0);
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unsigned int abs_symbol = Ns * frame_params->symbols_per_slot + symbol;
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rx_offset += sample_offset;
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for (int idx_symb = Ns*frame_params->symbols_per_slot; idx_symb <= abs_symbol; idx_symb++)
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rx_offset += (idx_symb%(0x7<<frame_params->numerology_index)) ? nb_prefix_samples : nb_prefix_samples0;
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rx_offset += frame_params->ofdm_symbol_size * symbol;
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// use OFDM symbol from within 1/8th of the CP to avoid ISI
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rx_offset -= (nb_prefix_samples / frame_params->ofdm_offset_divisor);
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#ifdef SL_DEBUG_SLOT_FEP
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// if (ue->frame <100)
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LOG_I(PHY, "slot_fep: slot %d, symbol %d, nb_prefix_samples %u, nb_prefix_samples0 %u, rx_offset %u\n",
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Ns, symbol, nb_prefix_samples, nb_prefix_samples0, rx_offset);
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#endif
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for (unsigned char aa=0; aa<frame_params->nb_antennas_rx; aa++) {
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memset(&rxdataF[aa][frame_params->ofdm_symbol_size*symbol],0,frame_params->ofdm_symbol_size*sizeof(int32_t));
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int16_t *rxdata_ptr = (int16_t *)&common_vars->rxdata[aa][rx_offset];
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// if input to dft is not 256-bit aligned
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if ((rx_offset & 7) != 0) {
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memcpy((void *)&tmp_dft_in[0],
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(void *)&common_vars->rxdata[aa][rx_offset],
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frame_params->ofdm_symbol_size * sizeof(int32_t));
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rxdata_ptr = (int16_t *)tmp_dft_in;
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}
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dft(dftsize,
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rxdata_ptr,
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(int16_t *)&rxdataF[aa][frame_params->ofdm_symbol_size*symbol],
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1);
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int symb_offset = (Ns%frame_params->slots_per_subframe)*frame_params->symbols_per_slot;
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int32_t rot2 = ((uint32_t*)frame_params->symbol_rotation[1])[symbol+symb_offset];
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((int16_t*)&rot2)[1]=-((int16_t*)&rot2)[1];
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#ifdef SL_DEBUG_SLOT_FEP
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// if (ue->frame <100)
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LOG_I(PHY, "slot_fep: slot %d, symbol %d rx_offset %u, rotation symbol %d %d.%d\n", Ns,symbol, rx_offset,
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symbol+symb_offset,((int16_t*)&rot2)[0],((int16_t*)&rot2)[1]);
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#endif
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rotate_cpx_vector((c16_t *)&rxdataF[aa][frame_params->ofdm_symbol_size*symbol],
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(c16_t *)&rot2,
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(c16_t *)&rxdataF[aa][frame_params->ofdm_symbol_size*symbol],
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frame_params->ofdm_symbol_size,
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15);
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int16_t *shift_rot = (int16_t *)frame_params->timeshift_symbol_rotation;
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multadd_cpx_vector((int16_t *)&rxdataF[aa][frame_params->ofdm_symbol_size*symbol],
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shift_rot,
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(int16_t *)&rxdataF[aa][frame_params->ofdm_symbol_size*symbol],
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1,
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frame_params->ofdm_symbol_size,
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15);
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}
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LOG_D(PHY, "SIDELINK RX: Slot FEP: done for symbol:%d\n", symbol);
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return 0;
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}
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int nr_slot_fep(PHY_VARS_NR_UE *ue,
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NR_DL_FRAME_PARMS *frame_parms,
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const UE_nr_rxtx_proc_t *proc,
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unsigned char symbol,
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c16_t rxdataF[][ue->frame_parms.samples_per_slot_wCP])
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c16_t rxdataF[][frame_parms->samples_per_slot_wCP],
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uint32_t linktype)
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{
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NR_DL_FRAME_PARMS *frame_parms = &ue->frame_parms;
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NR_UE_COMMON *common_vars = &ue->common_vars;
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int Ns = proc->nr_slot_rx;
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@@ -98,7 +192,7 @@ int nr_slot_fep(PHY_VARS_NR_UE *ue,
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apply_nr_rotation_RX(frame_parms,
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rxdataF[aa],
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frame_parms->symbol_rotation[0],
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frame_parms->symbol_rotation[linktype],
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Ns,
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frame_parms->N_RB_DL,
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0,
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