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Commit 08ff33a0 authored by sfn's avatar sfn Committed by Thomas Schlichter
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Fix llr calculation to support multiple layers

parent 77a450d0
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Showing with 197 additions and 398 deletions
openair1/PHY/NR_UE_TRANSPORT/nr_dlsch_llr_computation.c
View file @ 08ff33a0
......@@ -629,7 +629,7 @@ __m128i tmp_result4 __attribute__ ((aligned(16)));
//----------------------------------------------------------------------------------------------
int nr_dlsch_qpsk_llr(NR_DL_FRAME_PARMS *frame_parms,
int32_t **rxdataF_comp,
int32_t *rxdataF_comp,
int16_t *dlsch_llr,
uint8_t symbol,
uint32_t len,
......@@ -638,7 +638,7 @@ int nr_dlsch_qpsk_llr(NR_DL_FRAME_PARMS *frame_parms,
uint8_t beamforming_mode)
{
uint32_t *rxF = (uint32_t*)&rxdataF_comp[0][((int32_t)symbol*nb_rb*12)];
uint32_t *rxF = (uint32_t *)&rxdataF_comp[((int32_t)symbol*nb_rb*12)];
uint32_t *llr32;
int i;
......@@ -670,24 +670,23 @@ int nr_dlsch_qpsk_llr(NR_DL_FRAME_PARMS *frame_parms,
//----------------------------------------------------------------------------------------------
void nr_dlsch_16qam_llr(NR_DL_FRAME_PARMS *frame_parms,
int32_t **rxdataF_comp,
int32_t *rxdataF_comp,
int16_t *dlsch_llr,
int32_t **dl_ch_mag,
int32_t *dl_ch_mag,
uint8_t symbol,
uint32_t len,
uint8_t first_symbol_flag,
uint16_t nb_rb,
int16_t **llr32p,
uint8_t beamforming_mode)
{
#if defined(__x86_64__) || defined(__i386__)
__m128i *rxF = (__m128i*)&rxdataF_comp[0][(symbol*nb_rb*12)];
__m128i *rxF = (__m128i*)&rxdataF_comp[(symbol*nb_rb*12)];
__m128i *ch_mag;
__m128i llr128[2];
uint32_t *llr32;
#elif defined(__arm__)
int16x8_t *rxF = (int16x8_t*)&rxdataF_comp[0][(symbol*nb_rb*12)];
int16x8_t *rxF = (int16x8_t*)&rxdataF_comp[(symbol*nb_rb*12)];
int16x8_t *ch_mag;
int16x8_t xmm0;
int16_t *llr16;
......@@ -699,30 +698,17 @@ void nr_dlsch_16qam_llr(NR_DL_FRAME_PARMS *frame_parms,
#if defined(__x86_64__) || defined(__i386__)
if (first_symbol_flag==1) {
llr32 = (uint32_t*)dlsch_llr;
} else {
llr32 = (uint32_t*)*llr32p;
}
#elif defined(__arm__)
if (first_symbol_flag==1) {
llr16 = (int16_t*)dlsch_llr;
} else {
llr16 = (int16_t*)*llr32p;
}
#endif
#if defined(__x86_64__) || defined(__i386__)
ch_mag = (__m128i*)&dl_ch_mag[0][(symbol*nb_rb*12)];
ch_mag = (__m128i*)&dl_ch_mag[(symbol*nb_rb*12)];
#elif defined(__arm__)
ch_mag = (int16x8_t*)&dl_ch_mag[0][(symbol*nb_rb*12)];
ch_mag = (int16x8_t*)&dl_ch_mag[(symbol*nb_rb*12)];
#endif
// update output pointer according to number of REs in this symbol (<<2 because 4 bits per RE)
if (first_symbol_flag == 1)
*llr32p = dlsch_llr + (len<<2);
else
*llr32p += (len<<2);
// printf("len=%d\n", len);
len_mod4 = len&3;
......@@ -786,47 +772,35 @@ void nr_dlsch_16qam_llr(NR_DL_FRAME_PARMS *frame_parms,
//----------------------------------------------------------------------------------------------
void nr_dlsch_64qam_llr(NR_DL_FRAME_PARMS *frame_parms,
int32_t **rxdataF_comp,
int32_t *rxdataF_comp,
int16_t *dlsch_llr,
int32_t **dl_ch_mag,
int32_t **dl_ch_magb,
int32_t *dl_ch_mag,
int32_t *dl_ch_magb,
uint8_t symbol,
uint32_t len,
uint8_t first_symbol_flag,
uint16_t nb_rb,
uint32_t llr_offset,
uint8_t beamforming_mode)
{
#if defined(__x86_64__) || defined(__i386__)
__m128i *rxF = (__m128i*)&rxdataF_comp[0][(symbol*nb_rb*12)];
__m128i *rxF = (__m128i*)&rxdataF_comp[(symbol*nb_rb*12)];
__m128i *ch_mag,*ch_magb;
#elif defined(__arm__)
int16x8_t *rxF = (int16x8_t*)&rxdataF_comp[0][(symbol*nb_rb*12)];
int16x8_t *rxF = (int16x8_t*)&rxdataF_comp[(symbol*nb_rb*12)];
int16x8_t *ch_mag,*ch_magb,xmm1,xmm2;
#endif
int i,len2;
unsigned char len_mod4;
short *llr;
int16_t *llr2;
int8_t *pllr_symbol;
/*
if (first_symbol_flag==1)
llr = dlsch_llr;
else
llr = *llr_save;
*/
llr = dlsch_llr;
pllr_symbol = (int8_t*)dlsch_llr;
pllr_symbol += llr_offset;
llr2 = dlsch_llr;
#if defined(__x86_64__) || defined(__i386__)
ch_mag = (__m128i*)&dl_ch_mag[0][(symbol*nb_rb*12)];
ch_magb = (__m128i*)&dl_ch_magb[0][(symbol*nb_rb*12)];
ch_mag = (__m128i*)&dl_ch_mag[(symbol*nb_rb*12)];
ch_magb = (__m128i*)&dl_ch_magb[(symbol*nb_rb*12)];
#elif defined(__arm__)
ch_mag = (int16x8_t*)&dl_ch_mag[0][(symbol*nb_rb*12)];
ch_magb = (int16x8_t*)&dl_ch_magb[0][(symbol*nb_rb*12)];
ch_mag = (int16x8_t*)&dl_ch_mag[(symbol*nb_rb*12)];
ch_magb = (int16x8_t*)&dl_ch_magb[(symbol*nb_rb*12)];
#endif
// printf("nr_dlsch_64qam_llr: symbol %d,nb_rb %d, len %d,pbch_pss_sss_adjust %d\n",symbol,nb_rb,len,pbch_pss_sss_adjust);
......@@ -838,9 +812,6 @@ void nr_dlsch_64qam_llr(NR_DL_FRAME_PARMS *frame_parms,
dlsch_llr,
pllr_symbol);*/
llr2 = llr;
llr += (len*6);
len_mod4 =len&3;
len2=len>>2; // length in quad words (4 REs)
len2+=((len_mod4==0)?0:1);
......@@ -1095,43 +1066,29 @@ void nr_dlsch_64qam_llr_SIC(NR_DL_FRAME_PARMS *frame_parms,
//----------------------------------------------------------------------------------------------
void nr_dlsch_256qam_llr(NR_DL_FRAME_PARMS *frame_parms,
int32_t **rxdataF_comp,
int32_t *rxdataF_comp,
int16_t *dlsch_llr,
int32_t **dl_ch_mag,
int32_t **dl_ch_magb,
int32_t **dl_ch_magr,
int32_t *dl_ch_mag,
int32_t *dl_ch_magb,
int32_t *dl_ch_magr,
uint8_t symbol,
uint32_t len,
uint8_t first_symbol_flag,
uint16_t nb_rb,
uint32_t llr_offset,
uint8_t beamforming_mode)
{
__m128i *rxF = (__m128i*)&rxdataF_comp[0][(symbol*nb_rb*12)];
__m128i *rxF = (__m128i*)&rxdataF_comp[(symbol*nb_rb*12)];
__m128i *ch_mag,*ch_magb,*ch_magr;
int i,len2;
unsigned char len_mod4;
short *llr;
int16_t *llr2;
int8_t *pllr_symbol;
/*
if (first_symbol_flag==1)
llr = dlsch_llr;
else
llr = *llr_save;
*/
llr = dlsch_llr;
pllr_symbol = (int8_t*)dlsch_llr;
pllr_symbol += llr_offset;
llr2 = dlsch_llr;
ch_mag = (__m128i*)&dl_ch_mag[0][(symbol*nb_rb*12)];
ch_magb = (__m128i*)&dl_ch_magb[0][(symbol*nb_rb*12)];
ch_magr = (__m128i*)&dl_ch_magr[0][(symbol*nb_rb*12)];
llr2 = llr;
llr += (len*8);
ch_mag = (__m128i*)&dl_ch_mag[(symbol*nb_rb*12)];
ch_magb = (__m128i*)&dl_ch_magb[(symbol*nb_rb*12)];
ch_magr = (__m128i*)&dl_ch_magr[(symbol*nb_rb*12)];
len_mod4 =len&3;
len2=len>>2; // length in quad words (4 REs)
......
openair1/PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h
View file @ 08ff33a0
......@@ -471,7 +471,7 @@ int nr_dlsch_64qam_64qam_llr(NR_DL_FRAME_PARMS *frame_parms,
@param beamforming_mode beamforming mode
*/
int32_t nr_dlsch_qpsk_llr(NR_DL_FRAME_PARMS *frame_parms,
int32_t **rxdataF_comp,
int32_t *rxdataF_comp,
int16_t *dlsch_llr,
uint8_t symbol,
uint32_t len,
......@@ -505,14 +505,13 @@ int32_t nr_dlsch_qpsk_llr_SIC(NR_DL_FRAME_PARMS *frame_parms,
uint32_t rb_alloc);
void nr_dlsch_16qam_llr(NR_DL_FRAME_PARMS *frame_parms,
int32_t **rxdataF_comp,
int32_t *rxdataF_comp,
int16_t *dlsch_llr,
int32_t **dl_ch_mag,
int32_t *dl_ch_mag,
uint8_t symbol,
uint32_t len,
uint8_t first_symbol_flag,
uint16_t nb_rb,
int16_t **llr32p,
uint8_t beamforming_mode);
/**
\brief This function generates log-likelihood ratios (decoder input) for single-stream 16QAM received waveforms
......@@ -553,28 +552,26 @@ void dlsch_64qam_llr_SIC(NR_DL_FRAME_PARMS *frame_parms,
uint32_t rb_alloc);
void nr_dlsch_64qam_llr(NR_DL_FRAME_PARMS *frame_parms,
int32_t **rxdataF_comp,
int32_t *rxdataF_comp,
int16_t *dlsch_llr,
int32_t **dl_ch_mag,
int32_t **dl_ch_magb,
int32_t *dl_ch_mag,
int32_t *dl_ch_magb,
uint8_t symbol,
uint32_t len,
uint8_t first_symbol_flag,
uint16_t nb_rb,
uint32_t llr_offset,
uint8_t beamforming_mode);
void nr_dlsch_256qam_llr(NR_DL_FRAME_PARMS *frame_parms,
int32_t **rxdataF_comp,
int32_t *rxdataF_comp,
int16_t *dlsch_llr,
int32_t **dl_ch_mag,
int32_t **dl_ch_magb,
int32_t **dl_ch_magr,
int32_t *dl_ch_mag,
int32_t *dl_ch_magb,
int32_t *dl_ch_magr,
uint8_t symbol,
uint32_t len,
uint8_t first_symbol_flag,
uint16_t nb_rb,
uint32_t llr_offset,
uint8_t beamforming_mode);
/** \fn dlsch_siso(NR_DL_FRAME_PARMS *frame_parms,
......
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