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This commit is contained in:
Raymond Knopp
2019-09-11 10:57:31 +02:00
parent adf76a5f51
commit b2bdf7eb9a
9 changed files with 361 additions and 80 deletions
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openair1/PHY/CODING/nrLDPC_decoder/nrLDPC_cnProc.h
+10 -4
View File
@@ -87,23 +87,29 @@ static inline void nrLDPC_cnProc_BG2(t_nrLDPC_lut* p_lut, t_nrLDPC_procBuf* p_pr
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
__m256i *pj0 = &p_cnProcBuf[lut_idxCnProcG3[j][0]];
__m256i *pj1 = &p_cnProcBuf[lut_idxCnProcG3[j][1]];
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
ymm0 = p_cnProcBuf[lut_idxCnProcG3[j][0] + i];
// ymm0 = p_cnProcBuf[lut_idxCnProcG3[j][0] + i];
ymm0 = pj0[i];
sgn = _mm256_sign_epi8(*p_ones, ymm0);
min = _mm256_abs_epi8(ymm0);
// 32 CNs of second BN
ymm0 = p_cnProcBuf[lut_idxCnProcG3[j][1] + i];
// ymm0 = p_cnProcBuf[lut_idxCnProcG3[j][1] + i];
ymm0 = pj1[i];
min = _mm256_min_epu8(min, _mm256_abs_epi8(ymm0));
sgn = _mm256_sign_epi8(sgn, ymm0);
// Store result
min = _mm256_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = _mm256_sign_epi8(min, sgn);
p_cnProcBufResBit++;
//*p_cnProcBufResBit = _mm256_sign_epi8(min, sgn);
//p_cnProcBufResBit++;
p_cnProcBufResBit[i]=_mm256_sign_epi8(min, sgn);
}
}
}
openair1/PHY/CODING/nrLDPC_decoder/nrLDPC_decoder.c
+1 -1
View File
@@ -39,7 +39,7 @@
#include "nrLDPC_bnProc.h"
#define NR_LDPC_ENABLE_PARITY_CHECK
//#define NR_LDPC_PROFILER_DETAIL
#define NR_LDPC_PROFILER_DETAIL
#ifdef NR_LDPC_DEBUG_MODE
#include "nrLDPC_tools/nrLDPC_debug.h"
openair1/PHY/CODING/nrLDPC_decoder/nrLDPC_mPass.h
+276 -65
View File
@@ -153,17 +153,17 @@ static inline void nrLDPC_cn2bnProcBuf(t_nrLDPC_lut* p_lut, t_nrLDPC_procBuf* p_
for (j=0; j<3; j++)
{
p_cnProcBufRes = &cnProcBufRes[lut_startAddrCnGroups[0] + j*bitOffsetInGroup];
for (i=0; i<M; i++)
{
bnProcBuf[p_lut_cn2bn[j*M + i]] = p_cnProcBufRes[i];
}
}
}
// =====================================================================
// CN group with 4 BNs
p_lut_cn2bn += (M*3); // Number of elements of previous group
// p_lut_cn2bn += (M*3); // Number of elements of previous group
M = lut_numCnInCnGroups[1]*Z;
bitOffsetInGroup = lut_numCnInCnGroups_BG2_R15[1]*NR_LDPC_ZMAX;
@@ -278,11 +278,10 @@ static inline void nrLDPC_cn2bnProcBuf_BG1(t_nrLDPC_lut* p_lut, t_nrLDPC_procBuf
for (j=0; j<3; j++)
{
p_cnProcBufRes = &cnProcBufRes[lut_startAddrCnGroups[0] + j*bitOffsetInGroup];
for (i=0; i<M; i++)
{
bnProcBuf[p_lut_cn2bn[j*M + i]] = p_cnProcBufRes[i];
}
}
}
// =====================================================================
@@ -422,6 +421,32 @@ static inline void nrLDPC_cn2bnProcBuf_BG1(t_nrLDPC_lut* p_lut, t_nrLDPC_procBuf
}
}
static inline uint32_t *bn2cnmap(uint32_t* p_lut_cn2bn,int8_t *p_cnProcBuf,int8_t *bnProcBufRes,int M2) __attribute__((always_inline));
static inline uint32_t *bn2cnmap(uint32_t* p_lut_cn2bn,int8_t *p_cnProcBuf,int8_t *bnProcBufRes,int M2) {
__m128i tmp;
for (int i=0;i<M2;i++) {
tmp=_mm_insert_epi8(tmp,bnProcBufRes[*p_lut_cn2bn++],0);
tmp=_mm_insert_epi8(tmp,bnProcBufRes[*p_lut_cn2bn++],1);
tmp=_mm_insert_epi8(tmp,bnProcBufRes[*p_lut_cn2bn++],2);
tmp=_mm_insert_epi8(tmp,bnProcBufRes[*p_lut_cn2bn++],3);
tmp=_mm_insert_epi8(tmp,bnProcBufRes[*p_lut_cn2bn++],4);
tmp=_mm_insert_epi8(tmp,bnProcBufRes[*p_lut_cn2bn++],5);
tmp=_mm_insert_epi8(tmp,bnProcBufRes[*p_lut_cn2bn++],6);
tmp=_mm_insert_epi8(tmp,bnProcBufRes[*p_lut_cn2bn++],7);
tmp=_mm_insert_epi8(tmp,bnProcBufRes[*p_lut_cn2bn++],8);
tmp=_mm_insert_epi8(tmp,bnProcBufRes[*p_lut_cn2bn++],9);
tmp=_mm_insert_epi8(tmp,bnProcBufRes[*p_lut_cn2bn++],10);
tmp=_mm_insert_epi8(tmp,bnProcBufRes[*p_lut_cn2bn++],11);
tmp=_mm_insert_epi8(tmp,bnProcBufRes[*p_lut_cn2bn++],12);
tmp=_mm_insert_epi8(tmp,bnProcBufRes[*p_lut_cn2bn++],13);
tmp=_mm_insert_epi8(tmp,bnProcBufRes[*p_lut_cn2bn++],14);
((__m128i *)p_cnProcBuf)[i]=_mm_insert_epi8(tmp,bnProcBufRes[*p_lut_cn2bn++],15);
}
return(p_lut_cn2bn);
}
/**
\brief Copies the values in the BN processing results buffer to their corresponding place in the CN processing buffer for BG2.
@@ -457,7 +482,6 @@ static inline void nrLDPC_bn2cnProcBuf(t_nrLDPC_lut* p_lut, t_nrLDPC_procBuf* p_
for (j=0; j<2; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[0] + j*bitOffsetInGroup];
for (i=0; i<M; i++)
{
p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
@@ -474,7 +498,6 @@ static inline void nrLDPC_bn2cnProcBuf(t_nrLDPC_lut* p_lut, t_nrLDPC_procBuf* p_
for (j=0; j<3; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[1] + j*bitOffsetInGroup];
for (i=0; i<M; i++)
{
p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
@@ -491,7 +514,6 @@ static inline void nrLDPC_bn2cnProcBuf(t_nrLDPC_lut* p_lut, t_nrLDPC_procBuf* p_
for (j=0; j<4; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[2] + j*bitOffsetInGroup];
for (i=0; i<M; i++)
{
p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
@@ -508,7 +530,6 @@ static inline void nrLDPC_bn2cnProcBuf(t_nrLDPC_lut* p_lut, t_nrLDPC_procBuf* p_
for (j=0; j<5; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[3] + j*bitOffsetInGroup];
for (i=0; i<M; i++)
{
p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
@@ -521,7 +542,6 @@ static inline void nrLDPC_bn2cnProcBuf(t_nrLDPC_lut* p_lut, t_nrLDPC_procBuf* p_
p_lut_cn2bn += (M*6); // Number of elements of previous group
M = lut_numCnInCnGroups[4]*Z;
bitOffsetInGroup = lut_numCnInCnGroups_BG2_R15[4]*NR_LDPC_ZMAX;
for (j=0; j<8; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[4] + j*bitOffsetInGroup];
@@ -542,7 +562,7 @@ static inline void nrLDPC_bn2cnProcBuf(t_nrLDPC_lut* p_lut, t_nrLDPC_procBuf* p_
for (j=0; j<10; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[5] + j*bitOffsetInGroup];
printf("5 BN: cNProcBuf output at %d\n",lut_startAddrCnGroups[5] + j*bitOffsetInGroup);
for (i=0; i<M; i++)
{
p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
@@ -551,6 +571,7 @@ static inline void nrLDPC_bn2cnProcBuf(t_nrLDPC_lut* p_lut, t_nrLDPC_procBuf* p_
}
/**
\brief Copies the values in the BN processing results buffer to their corresponding place in the CN processing buffer for BG1.
\param p_lut Pointer to decoder LUTs
@@ -566,7 +587,7 @@ static inline void nrLDPC_bn2cnProcBuf_BG1(t_nrLDPC_lut* p_lut, t_nrLDPC_procBuf
int8_t* bnProcBufRes = p_procBuf->bnProcBufRes;
int8_t* p_cnProcBuf;
const uint32_t* p_lut_cn2bn;
uint32_t* p_lut_cn2bn;
uint32_t bitOffsetInGroup;
uint32_t i;
uint32_t j;
@@ -582,14 +603,228 @@ static inline void nrLDPC_bn2cnProcBuf_BG1(t_nrLDPC_lut* p_lut, t_nrLDPC_procBuf
M = lut_numCnInCnGroups[0]*Z;
bitOffsetInGroup = lut_numCnInCnGroups_BG1_R13[0]*NR_LDPC_ZMAX;
for (j=0; j<2; j++)
for (j=0;j<2; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[0] + j*bitOffsetInGroup];
p_lut_cn2bn = bn2cnmap(p_lut_cn2bn,p_cnProcBuf,bnProcBufRes,M>>4);
/*
for (i=0; i<M; i++)
{
p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
// p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
p_cnProcBuf[i] = bnProcBufRes[*p_lut_cn2bn++];
}
*/
}
// =====================================================================
// CN group with 4 BNs
// p_lut_cn2bn += (M*3); // Number of elements of previous group
p_lut_cn2bn += M; // Number of elements of previous group
M = lut_numCnInCnGroups[1]*Z;
bitOffsetInGroup = lut_numCnInCnGroups_BG1_R13[1]*NR_LDPC_ZMAX;
for (j=0; j<3; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[1] + j*bitOffsetInGroup];
p_lut_cn2bn = bn2cnmap(p_lut_cn2bn,p_cnProcBuf,bnProcBufRes,M>>4);
/*
for (i=0; i<M; i++)
{
// p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
p_cnProcBuf[i] = bnProcBufRes[*p_lut_cn2bn++];
}*/
}
// =====================================================================
// CN group with 5 BNs
// p_lut_cn2bn += (M*4); // Number of elements of previous group
p_lut_cn2bn += M; // Number of elements of previous group
M = lut_numCnInCnGroups[2]*Z;
bitOffsetInGroup = lut_numCnInCnGroups_BG1_R13[2]*NR_LDPC_ZMAX;
for (j=0; j<4; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[2] + j*bitOffsetInGroup];
p_lut_cn2bn = bn2cnmap(p_lut_cn2bn,p_cnProcBuf,bnProcBufRes,M>>4);
/*
for (i=0; i<M; i++)
{
// p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
p_cnProcBuf[i] = bnProcBufRes[*p_lut_cn2bn++];
}*/
}
// =====================================================================
// CN group with 6 BNs
// p_lut_cn2bn += (M*5); // Number of elements of previous group
p_lut_cn2bn += M; // Number of elements of previous group
M = lut_numCnInCnGroups[3]*Z;
bitOffsetInGroup = lut_numCnInCnGroups_BG1_R13[3]*NR_LDPC_ZMAX;
for (j=0; j<5; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[3] + j*bitOffsetInGroup];
p_lut_cn2bn = bn2cnmap(p_lut_cn2bn,p_cnProcBuf,bnProcBufRes,M>>4);
/*
for (i=0; i<M; i++)
{
// p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
p_cnProcBuf[i] = bnProcBufRes[*p_lut_cn2bn++];
}*/
}
// =====================================================================
// CN group with 7 BNs
// p_lut_cn2bn += (M*6); // Number of elements of previous group
p_lut_cn2bn += M; // Number of elements of previous group
M = lut_numCnInCnGroups[4]*Z;
bitOffsetInGroup = lut_numCnInCnGroups_BG1_R13[4]*NR_LDPC_ZMAX;
for (j=0; j<6; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[4] + j*bitOffsetInGroup];
p_lut_cn2bn = bn2cnmap(p_lut_cn2bn,p_cnProcBuf,bnProcBufRes,M>>4);
/*
for (i=0; i<M; i++)
{
// p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
p_cnProcBuf[i] = bnProcBufRes[*p_lut_cn2bn++];
}*/
}
// =====================================================================
// CN group with 8 BNs
// p_lut_cn2bn += (M*7); // Number of elements of previous group
p_lut_cn2bn += M; // Number of elements of previous group
M = lut_numCnInCnGroups[5]*Z;
bitOffsetInGroup = lut_numCnInCnGroups_BG1_R13[5]*NR_LDPC_ZMAX;
for (j=0; j<7; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[5] + j*bitOffsetInGroup];
p_lut_cn2bn = bn2cnmap(p_lut_cn2bn,p_cnProcBuf,bnProcBufRes,M>>4);
/*
for (i=0; i<M; i++)
{
// p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
p_cnProcBuf[i] = bnProcBufRes[*p_lut_cn2bn++];
}*/
}
// =====================================================================
// CN group with 9 BNs
// p_lut_cn2bn += (M*8); // Number of elements of previous group
p_lut_cn2bn += M; // Number of elements of previous group
M = lut_numCnInCnGroups[6]*Z;
bitOffsetInGroup = lut_numCnInCnGroups_BG1_R13[6]*NR_LDPC_ZMAX;
for (j=0; j<8; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[6] + j*bitOffsetInGroup];
p_lut_cn2bn = bn2cnmap(p_lut_cn2bn,p_cnProcBuf,bnProcBufRes,M>>4);
/*
for (i=0; i<M; i++)
{
// p_lut_cn2bn += (M*8); // Number of elements of previous group
p_cnProcBuf[i] = bnProcBufRes[*p_lut_cn2bn++];
}*/
}
// =====================================================================
// CN group with 10 BNs
// p_lut_cn2bn += (M*9); // Number of elements of previous group
p_lut_cn2bn += M; // Number of elements of previous group
M = lut_numCnInCnGroups[7]*Z;
bitOffsetInGroup = lut_numCnInCnGroups_BG1_R13[7]*NR_LDPC_ZMAX;
for (j=0; j<9; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[7] + j*bitOffsetInGroup];
p_lut_cn2bn = bn2cnmap(p_lut_cn2bn,p_cnProcBuf,bnProcBufRes,M>>4);
/*
for (i=0; i<M; i++)
{
// p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
p_cnProcBuf[i] = bnProcBufRes[*p_lut_cn2bn++];
}*/
}
// =====================================================================
// CN group with 19 BNs
// p_lut_cn2bn += (M*10); // Number of elements of previous group
p_lut_cn2bn += M; // Number of elements of previous group
M = lut_numCnInCnGroups[8]*Z;
bitOffsetInGroup = lut_numCnInCnGroups_BG1_R13[8]*NR_LDPC_ZMAX;
for (j=0; j<19; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[8] + j*bitOffsetInGroup];
p_lut_cn2bn = bn2cnmap(p_lut_cn2bn,p_cnProcBuf,bnProcBufRes,M>>4);
/*
for (i=0; i<M; i++)
{
// p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
p_cnProcBuf[i] = bnProcBufRes[*p_lut_cn2bn++];
}*/
}
}
static inline void memcpy_printer(uint32_t* p_lut_cn2bn,int dest0,int M) {
int dest=0,src=p_lut_cn2bn[0],len=1;
for (int i=1;i<M;i++) {
if (p_lut_cn2bn[i]!= (1+p_lut_cn2bn[i-1])) {
printf("memcpy(%d,%d,%d)\n",dest0+dest,src,len);
len=1;
dest=i;
src=p_lut_cn2bn[i];
}
else if (i==(M-1)) printf("memcpy(%d,%d,%d)\n",dest0+dest,src,len);
else len++;
// printf("p_lut_cn2bn[%d] : %d\n",i,p_lut_cn2bn[i]);
}
}
static inline void nrLDPC_prep_bn2cnProcBuf_BG1(t_nrLDPC_lut* p_lut, uint16_t Z)
{
const uint32_t* lut_cn2bnProcBuf = p_lut->cn2bnProcBuf;
const uint32_t* lut_cn2bnProcBuf2 = p_lut->cn2bnProcBuf2;
const uint8_t* lut_numCnInCnGroups = p_lut->numCnInCnGroups;
const uint32_t* lut_startAddrCnGroups = p_lut->startAddrCnGroups;
uint32_t* p_lut_cn2bn;
uint32_t bitOffsetInGroup;
uint32_t i;
uint32_t j;
uint32_t M;
// For CN groups 3 to 19 no need to send the last BN back since it's single edge
// and BN processing does not change the value already in the CN proc buf
// =====================================================================
// CN group with 3 BNs
p_lut_cn2bn = &lut_cn2bnProcBuf[0];
M = lut_numCnInCnGroups[0]*Z;
bitOffsetInGroup = lut_numCnInCnGroups_BG1_R13[0]*NR_LDPC_ZMAX;
for (j=0;j<2; j++)
{
printf("******3 BN (%d): cNProcBuf output at %d\n",j,lut_startAddrCnGroups[0] + j*bitOffsetInGroup);
memcpy_printer(p_lut_cn2bn,lut_startAddrCnGroups[0] + j*bitOffsetInGroup,M);
}
// =====================================================================
@@ -601,135 +836,111 @@ static inline void nrLDPC_bn2cnProcBuf_BG1(t_nrLDPC_lut* p_lut, t_nrLDPC_procBuf
for (j=0; j<3; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[1] + j*bitOffsetInGroup];
for (i=0; i<M; i++)
{
p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
}
printf("******4 BN (%d): cNProcBuf output at %d\n",j,lut_startAddrCnGroups[1] + j*bitOffsetInGroup);
memcpy_printer(p_lut_cn2bn,lut_startAddrCnGroups[0] + j*bitOffsetInGroup,M);
}
// =====================================================================
// CN group with 5 BNs
p_lut_cn2bn += (M*4); // Number of elements of previous group
// p_lut_cn2bn += (M*4); // Number of elements of previous group
p_lut_cn2bn += M; // Number of elements of previous group
M = lut_numCnInCnGroups[2]*Z;
bitOffsetInGroup = lut_numCnInCnGroups_BG1_R13[2]*NR_LDPC_ZMAX;
for (j=0; j<4; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[2] + j*bitOffsetInGroup];
for (i=0; i<M; i++)
{
p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
}
printf("******5 BN (%d): cNProcBuf output at %d\n",j,lut_startAddrCnGroups[2] + j*bitOffsetInGroup);
memcpy_printer(p_lut_cn2bn,lut_startAddrCnGroups[0] + j*bitOffsetInGroup,M);
}
// =====================================================================
// CN group with 6 BNs
p_lut_cn2bn += (M*5); // Number of elements of previous group
// p_lut_cn2bn += (M*5); // Number of elements of previous group
p_lut_cn2bn += M; // Number of elements of previous group
M = lut_numCnInCnGroups[3]*Z;
bitOffsetInGroup = lut_numCnInCnGroups_BG1_R13[3]*NR_LDPC_ZMAX;
for (j=0; j<5; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[3] + j*bitOffsetInGroup];
printf("******6 BN (%d): cNProcBuf output at %d\n",j,lut_startAddrCnGroups[3] + j*bitOffsetInGroup);
for (i=0; i<M; i++)
{
p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
}
}
// =====================================================================
// CN group with 7 BNs
p_lut_cn2bn += (M*6); // Number of elements of previous group
// p_lut_cn2bn += (M*6); // Number of elements of previous group
p_lut_cn2bn += M; // Number of elements of previous group
M = lut_numCnInCnGroups[4]*Z;
bitOffsetInGroup = lut_numCnInCnGroups_BG1_R13[4]*NR_LDPC_ZMAX;
for (j=0; j<6; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[4] + j*bitOffsetInGroup];
for (i=0; i<M; i++)
{
p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
}
printf("******7 BN (%d): cNProcBuf output at %d\n",j,lut_startAddrCnGroups[4] + j*bitOffsetInGroup);
}
// =====================================================================
// CN group with 8 BNs
p_lut_cn2bn += (M*7); // Number of elements of previous group
// p_lut_cn2bn += (M*7); // Number of elements of previous group
p_lut_cn2bn += M; // Number of elements of previous group
M = lut_numCnInCnGroups[5]*Z;
bitOffsetInGroup = lut_numCnInCnGroups_BG1_R13[5]*NR_LDPC_ZMAX;
for (j=0; j<7; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[5] + j*bitOffsetInGroup];
printf("******8 BN (%d): cNProcBuf output at %d\n",j,lut_startAddrCnGroups[5] + j*bitOffsetInGroup);
for (i=0; i<M; i++)
{
p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
}
}
// =====================================================================
// CN group with 9 BNs
p_lut_cn2bn += (M*8); // Number of elements of previous group
// p_lut_cn2bn += (M*8); // Number of elements of previous group
p_lut_cn2bn += M; // Number of elements of previous group
M = lut_numCnInCnGroups[6]*Z;
bitOffsetInGroup = lut_numCnInCnGroups_BG1_R13[6]*NR_LDPC_ZMAX;
for (j=0; j<8; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[6] + j*bitOffsetInGroup];
for (i=0; i<M; i++)
{
p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
}
printf("******9 BN (%d): cNProcBuf output at %d\n",j,lut_startAddrCnGroups[6] + j*bitOffsetInGroup);
}
// =====================================================================
// CN group with 10 BNs
p_lut_cn2bn += (M*9); // Number of elements of previous group
// p_lut_cn2bn += (M*9); // Number of elements of previous group
p_lut_cn2bn += M; // Number of elements of previous group
M = lut_numCnInCnGroups[7]*Z;
bitOffsetInGroup = lut_numCnInCnGroups_BG1_R13[7]*NR_LDPC_ZMAX;
for (j=0; j<9; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[7] + j*bitOffsetInGroup];
for (i=0; i<M; i++)
{
p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
}
printf("******10 BN (%d): cNProcBuf output at %d\n",j,lut_startAddrCnGroups[7] + j*bitOffsetInGroup);
}
// =====================================================================
// CN group with 19 BNs
p_lut_cn2bn += (M*10); // Number of elements of previous group
// p_lut_cn2bn += (M*10); // Number of elements of previous group
p_lut_cn2bn += M; // Number of elements of previous group
M = lut_numCnInCnGroups[8]*Z;
bitOffsetInGroup = lut_numCnInCnGroups_BG1_R13[8]*NR_LDPC_ZMAX;
for (j=0; j<19; j++)
{
p_cnProcBuf = &cnProcBuf[lut_startAddrCnGroups[8] + j*bitOffsetInGroup];
for (i=0; i<M; i++)
{
p_cnProcBuf[i] = bnProcBufRes[p_lut_cn2bn[j*M + i]];
}
printf("******19 BN (%d): cNProcBuf output at %d\n",j,lut_startAddrCnGroups[8] + j*bitOffsetInGroup);
}
}
/**
\brief Copies the values in the LLR results buffer to their corresponding place in the output LLR vector.
\param p_lut Pointer to decoder LUTs
openair1/PHY/CODING/nrLDPC_decoder/nrLDPC_types.h
+1
View File
@@ -48,6 +48,7 @@ typedef struct nrLDPC_lut {
const uint32_t* llr2CnProcBuf; /**< LUT for input LLRs to CN processing buffer */
const uint8_t* numEdgesPerBn; /**< LUT with number of edges per BN */
const uint32_t* cn2bnProcBuf; /**< LUT for transferring CN processing results to BN processing buffer */
const uint32_t* cn2bnProcBuf2; /**< LUT for transferring CN processing results to BN processing buffer */
const uint16_t* llr2llrProcBuf; /**< LUT for transferring input LLRs to LLR processing buffer */
} t_nrLDPC_lut;