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OpenXG-RAN
Commit 62ad185d authored by Tsung-Yu Chan's avatar Tsung-Yu Chan Committed by Tsung Yu Chan
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fix / fix the length of ce estimation buffer

parent f4beb879
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Showing with 22 additions and 66 deletions
openair1/PHY/INIT/nr_init.c
View file @ 62ad185d
......@@ -686,7 +686,9 @@ int phy_init_nr_gNB(PHY_VARS_gNB *gNB)
int n_buf = Prx*max_ul_mimo_layers;
int nb_re_pusch = N_RB_UL * NR_NB_SC_PER_RB;
int nb_re_pusch2 = nb_re_pusch + (nb_re_pusch&7);
int nb_re_pusch2 = nb_re_pusch;
if (nb_re_pusch & 7)
nb_re_pusch2 += 8 - (nb_re_pusch & 7);
gNB->pusch_vars = (NR_gNB_PUSCH *)malloc16_clear(gNB->max_nb_pusch * sizeof(NR_gNB_PUSCH));
for (int ULSCH_id = 0; ULSCH_id < gNB->max_nb_pusch; ULSCH_id++) {
......
openair1/PHY/NR_TRANSPORT/nr_transport_proto.h
View file @ 62ad185d
......@@ -131,30 +131,18 @@ int nr_rx_pusch_tp(PHY_VARS_gNB *gNB,
uint8_t slot,
unsigned char harq_pid);
void nr_ulsch_scale_channel(int32_t **ul_ch_estimates_ext,
NR_DL_FRAME_PARMS *frame_parms,
NR_gNB_ULSCH_t *ulsch_gNB,
uint8_t symbol,
uint8_t is_dmrs_symbol,
uint32_t len,
uint8_t nrOfLayers,
uint16_t nb_rb,
int shift_ch_ext);
/** \brief This function computes the average channel level over all allocated RBs and antennas (TX/RX) in order to compute output shift for compensated signal
@param ul_ch_estimates_ext Channel estimates in allocated RBs
@param frame_parms Pointer to frame descriptor
@param avg Pointer to average signal strength
@param pilots_flag Flag to indicate pilots in symbol
@param nb_rb Number of allocated RBs
*/
void nr_ulsch_channel_level(int **ul_ch_estimates_ext,
NR_DL_FRAME_PARMS *frame_parms,
int32_t *avg,
uint8_t symbol,
uint32_t len,
uint8_t nrOfLayers,
unsigned short nb_rb);
uint8_t nrOfLayers);
/*!
\brief This function implements the idft transform precoding in PUSCH
......
openair1/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c
View file @ 62ad185d
......@@ -382,7 +382,6 @@ static void nr_ulsch_extract_rbs (c16_t* const rxdataF,
void nr_ulsch_scale_channel(int **ul_ch_estimates_ext,
NR_DL_FRAME_PARMS *frame_parms,
NR_gNB_ULSCH_t *ulsch_gNB,
uint8_t symbol,
uint8_t is_dmrs_symbol,
uint32_t len,
......@@ -405,21 +404,12 @@ void nr_ulsch_scale_channel(int **ul_ch_estimates_ext,
simde__m128i ch_amp128 = simde_mm_set1_epi16(ch_amp); // Q3.13
LOG_D(PHY, "Scaling PUSCH Chest in OFDM symbol %d by %d, pilots %d nb_rb %d NCP %d symbol %d\n", symbol, ch_amp, is_dmrs_symbol, nb_rb, frame_parms->Ncp, symbol);
uint32_t nb_rb_0 = len / 12 + ((len % 12) ? 1 : 0);
int off = ((nb_rb & 1) == 1) ? 4 : 0;
for (int aatx = 0; aatx < nrOfLayers; aatx++) {
for (int aarx = 0; aarx < frame_parms->nb_antennas_rx; aarx++) {
simde__m128i *ul_ch128 = (simde__m128i *)&ul_ch_estimates_ext[aatx * frame_parms->nb_antennas_rx + aarx][symbol * (off + (nb_rb * NR_NB_SC_PER_RB))];
for (int rb = 0; rb < nb_rb_0; rb++) {
ul_ch128[0] = simde_mm_mulhi_epi16(ul_ch128[0], ch_amp128);
ul_ch128[0] = simde_mm_slli_epi16(ul_ch128[0], b);
ul_ch128[1] = simde_mm_mulhi_epi16(ul_ch128[1], ch_amp128);
ul_ch128[1] = simde_mm_slli_epi16(ul_ch128[1], b);
ul_ch128[2] = simde_mm_mulhi_epi16(ul_ch128[2], ch_amp128);
ul_ch128[2] = simde_mm_slli_epi16(ul_ch128[2], b);
ul_ch128 += 3;
simde__m128i *ul_ch128 = (simde__m128i *)&ul_ch_estimates_ext[aatx * frame_parms->nb_antennas_rx + aarx][symbol * len];
for (int i = 0; i < len >> 2; i++) {
ul_ch128[i] = simde_mm_mulhi_epi16(ul_ch128[i], ch_amp128);
ul_ch128[i] = simde_mm_slli_epi16(ul_ch128[i], b);
}
}
}
......@@ -447,32 +437,22 @@ void nr_ulsch_channel_level(int **ul_ch_estimates_ext,
int32_t *avg,
uint8_t symbol,
uint32_t len,
uint8_t nrOfLayers,
unsigned short nb_rb)
uint8_t nrOfLayers)
{
short rb;
unsigned char aatx, aarx;
simde__m128i *ul_ch128, avg128U;
int16_t x = factor2(len);
int16_t y = (len)>>x;
uint32_t nb_rb_0 = len/12 + ((len%12)?1:0);
int off = ((nb_rb&1) == 1)? 4:0;
for (aatx = 0; aatx < nrOfLayers; aatx++) {
for (aarx = 0; aarx < frame_parms->nb_antennas_rx; aarx++) {
for (int aatx = 0; aatx < nrOfLayers; aatx++) {
for (int aarx = 0; aarx < frame_parms->nb_antennas_rx; aarx++) {
//clear average level
avg128U = simde_mm_setzero_si128();
ul_ch128=(simde__m128i *)&ul_ch_estimates_ext[aatx*frame_parms->nb_antennas_rx+aarx][symbol*(off+(nb_rb*12))];
ul_ch128 = (simde__m128i *)&ul_ch_estimates_ext[aatx*frame_parms->nb_antennas_rx+aarx][symbol * len];
for (rb = 0; rb < nb_rb_0; rb++) {
avg128U = simde_mm_add_epi32(avg128U, simde_mm_srai_epi32(simde_mm_madd_epi16(ul_ch128[0], ul_ch128[0]), x));
avg128U = simde_mm_add_epi32(avg128U, simde_mm_srai_epi32(simde_mm_madd_epi16(ul_ch128[1], ul_ch128[1]), x));
avg128U = simde_mm_add_epi32(avg128U, simde_mm_srai_epi32(simde_mm_madd_epi16(ul_ch128[2], ul_ch128[2]), x));
ul_ch128+=3;
for (int i = 0; i < len >> 2; i++) {
avg128U = simde_mm_add_epi32(avg128U, simde_mm_srai_epi32(simde_mm_madd_epi16(ul_ch128[i], ul_ch128[i]), x));
}
avg[aatx*frame_parms->nb_antennas_rx+aarx] = (((int32_t*)&avg128U)[0] +
......@@ -486,21 +466,6 @@ void nr_ulsch_channel_level(int **ul_ch_estimates_ext,
simde_m_empty();
}
static simde__m128i a_mult_conjb(__m128i a, __m128i b, unsigned char output_shift)
{
simde__m128i mmtmpD0 = simde_mm_madd_epi16(b, a);
simde__m128i mmtmpD1 = simde_mm_shufflelo_epi16(b, SIMDE_MM_SHUFFLE(2, 3, 0, 1));
mmtmpD1 = simde_mm_shufflehi_epi16(mmtmpD1, SIMDE_MM_SHUFFLE(2, 3, 0, 1));
mmtmpD1 = simde_mm_sign_epi16(mmtmpD1, *(simde__m128i *)&conjugate[0]);
mmtmpD1 = simde_mm_madd_epi16(mmtmpD1, a);
mmtmpD0 = simde_mm_srai_epi32(mmtmpD0, output_shift);
mmtmpD1 = simde_mm_srai_epi32(mmtmpD1, output_shift);
simde__m128i mmtmpD2 = simde_mm_unpacklo_epi32(mmtmpD0, mmtmpD1);
simde__m128i mmtmpD3 = simde_mm_unpackhi_epi32(mmtmpD0, mmtmpD1);
return _mm_packs_epi32(mmtmpD2, mmtmpD3);
}
void nr_ulsch_channel_compensation(c16_t *rxFext,
c16_t *chFext,
c16_t *ul_ch_maga,
......@@ -1354,7 +1319,7 @@ static void inner_rx (PHY_VARS_gNB *gNB,
int buffer_length = rel15_ul->rb_size * NR_NB_SC_PER_RB;
if (buffer_length & 7)
buffer_length += (8 - buffer_length%8);
buffer_length += (8 - (buffer_length & 7));
c16_t rxFext[nb_rx_ant][buffer_length] __attribute__((aligned(32)));
c16_t chFext[nb_layer][nb_rx_ant][buffer_length] __attribute__((aligned(32)));
......@@ -1655,13 +1620,16 @@ int nr_rx_pusch_tp(PHY_VARS_gNB *gNB,
// extract the first dmrs for the channel level computation
// extract the data in the OFDM frame, to the start of the array
int soffset = (slot&3)*frame_parms->symbols_per_slot*frame_parms->ofdm_symbol_size;
int nb_re_pusch2 = nb_re_pusch + (nb_re_pusch&7);
if (nb_re_pusch & 7)
nb_re_pusch += 8 - (nb_re_pusch & 7);
for (int aarx = 0; aarx < frame_parms->nb_antennas_rx; aarx++)
for (int aatx = 0; aatx < rel15_ul->nrOfLayers; aatx++)
nr_ulsch_extract_rbs(gNB->common_vars.rxdataF[aarx],
(c16_t *)pusch_vars->ul_ch_estimates[aatx * frame_parms->nb_antennas_rx + aarx],
(c16_t*)&pusch_vars->rxdataF_ext[aarx][meas_symbol * nb_re_pusch2],
(c16_t*)&pusch_vars->ul_ch_estimates_ext[aatx*frame_parms->nb_antennas_rx+aarx][meas_symbol*nb_re_pusch2],
(c16_t*)&pusch_vars->rxdataF_ext[aarx][meas_symbol * nb_re_pusch],
(c16_t*)&pusch_vars->ul_ch_estimates_ext[aatx*frame_parms->nb_antennas_rx+aarx][meas_symbol * nb_re_pusch],
soffset + meas_symbol * frame_parms->ofdm_symbol_size,
pusch_vars->dmrs_symbol * frame_parms->ofdm_symbol_size,
aarx,
......@@ -1680,7 +1648,6 @@ int nr_rx_pusch_tp(PHY_VARS_gNB *gNB,
//----------------------------------------------------------
nr_ulsch_scale_channel(pusch_vars->ul_ch_estimates_ext,
frame_parms,
&gNB->ulsch[ulsch_id],
meas_symbol,
(rel15_ul->ul_dmrs_symb_pos >> meas_symbol) & 0x01,
nb_re_pusch,
......@@ -1693,8 +1660,7 @@ int nr_rx_pusch_tp(PHY_VARS_gNB *gNB,
avg,
meas_symbol, // index of the start symbol
nb_re_pusch, // number of the re in pusch
rel15_ul->nrOfLayers,
rel15_ul->rb_size);
rel15_ul->nrOfLayers);
for (int aatx = 0; aatx < rel15_ul->nrOfLayers; aatx++)
for (int aarx = 0; aarx < frame_parms->nb_antennas_rx; aarx++)
......
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