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lizhongxiao
OpenXG-RAN
Commits
59c4ddef
Commit
59c4ddef
authored
6 years ago
by
Raymond Knopp
Browse files
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completed most of code generation tool for polar decoder integrated into "polartest"
parent
8cda0a0f
Changes
3
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Showing
3 changed files
with
186 additions
and
176 deletions
+186
-176
openair1/PHY/CODING/nrPolar_tools/nr_polar_decoder.c
openair1/PHY/CODING/nrPolar_tools/nr_polar_decoder.c
+110
-93
openair1/PHY/CODING/nrPolar_tools/nr_polar_decoding_tools.c
openair1/PHY/CODING/nrPolar_tools/nr_polar_decoding_tools.c
+74
-81
openair1/PHY/CODING/nrPolar_tools/nr_polar_defs.h
openair1/PHY/CODING/nrPolar_tools/nr_polar_defs.h
+2
-2
No files found.
openair1/PHY/CODING/nrPolar_tools/nr_polar_decoder.c
View file @
59c4ddef
...
...
@@ -30,7 +30,6 @@
#include "PHY/TOOLS/time_meas.h"
int8_t
polar_decoder
(
double
*
input
,
uint8_t
*
output
,
...
...
@@ -294,6 +293,92 @@ int8_t polar_decoder(
}
#define decoder_int8_A(sorted_dlist,currentListSize,polarParams) {for (int i = 0; i < currentListSize; i++) { \
for (int k = 0; k < (polarParams->n+1); k++) { \
memcpy((void*)&sorted_dlist[i+currentListSize]->bit[k][0],\
(void*)&sorted_dlist[i]->bit[k][0],\
sizeof(uint8_t)*polarParams->N);\
memcpy((void*)&sorted_dlist[i+currentListSize]->llr[k][0],\
(void*)&sorted_dlist[i]->llr[k][0],\
sizeof(int16_t)*polarParams->N);}}}
#define decoder_int8_B(sorted_dlist,currentListSize) {for (int i = 0; i < currentListSize; i++) {sorted_dlist[i]->bit[0][currentBit]=0;sorted_dlist[i+currentListSize]->bit[0][currentBit]=1;}}
void
inline
decoder_int8_C
(
decoder_list_int8_t
*
sorted_dlist
[],
t_nrPolar_params
*
polarParams
,
int
currentBit
,
int
currentListSize
,
int
listSize
)
{
int32_t
pathMetric
[
2
*
listSize
];
decoder_list_int8_t
*
temp_dlist
[
2
*
listSize
];
int
listIndex
[
2
*
listSize
];
int
listIndex2
[
2
*
listSize
];
for
(
int
i
=
0
;
i
<
currentListSize
;
i
++
)
{
listIndex
[
i
]
=
i
;
pathMetric
[
i
]
=
sorted_dlist
[
i
]
->
pathMetric
;
}
nr_sort_asc_int16_1D_array_ind
(
pathMetric
,
listIndex
,
currentListSize
);
for
(
int
i
=
0
;
i
<
currentListSize
;
i
++
)
{
listIndex2
[
listIndex
[
i
]]
=
i
;
}
// copy the llr/bit arrays that are needed
for
(
int
i
=
0
;
i
<
listSize
;
i
++
)
{
// printf("listIndex[%d] %d\n",i,listIndex[i]);
if
((
listIndex2
[
i
+
listSize
]
<
listSize
)
&&
(
listIndex2
[
i
]
<
listSize
))
{
// both '0' and '1' path metrics are to be kept
// do memcpy of LLR and Bit arrays
for
(
int
k
=
0
;
k
<
(
polarParams
->
n
+
1
);
k
++
)
{
memcpy
((
void
*
)
&
sorted_dlist
[
i
+
listSize
]
->
bit
[
k
][
0
],
(
void
*
)
&
sorted_dlist
[
i
]
->
bit
[
k
][
0
],
sizeof
(
uint8_t
)
*
polarParams
->
N
);
memcpy
((
void
*
)
&
sorted_dlist
[
i
+
listSize
]
->
llr
[
k
][
0
],
(
void
*
)
&
sorted_dlist
[
i
]
->
llr
[
k
][
0
],
sizeof
(
int16_t
)
*
polarParams
->
N
);
}
sorted_dlist
[
i
]
->
bit
[
0
][
currentBit
]
=
0
;
sorted_dlist
[
i
+
listSize
]
->
bit
[
0
][
currentBit
]
=
1
;
}
else
if
(
listIndex2
[
i
+
listSize
]
<
listSize
)
{
// only '1' path metric is to be kept
// just change the current bit from '0' to '1'
for
(
int
k
=
0
;
k
<
(
polarParams
->
n
+
1
);
k
++
)
{
memcpy
((
void
*
)
&
sorted_dlist
[
i
+
listSize
]
->
bit
[
k
][
0
],
(
void
*
)
&
sorted_dlist
[
i
]
->
bit
[
k
][
0
],
sizeof
(
uint8_t
)
*
polarParams
->
N
);
memcpy
((
void
*
)
&
sorted_dlist
[
i
+
listSize
]
->
llr
[
k
][
0
],
(
void
*
)
&
sorted_dlist
[
i
]
->
llr
[
k
][
0
],
sizeof
(
int16_t
)
*
polarParams
->
N
);
}
sorted_dlist
[
i
+
listSize
]
->
bit
[
0
][
currentBit
]
=
1
;
/*
decoder_list_t *tmp = sorted_dlist[i+listSize];
sorted_dlist[i+listSize] = sorted_dlist[i];
sorted_dlist[i+listSize]->pathMetric = tmp->pathMetric;
sorted_dlist[i+listSize]->bit[0][currentBit]=1;
memcpy((void*)&sorted_dlist[i+listSize]->crcChecksum[0],
(void*)&tmp->crcChecksum[0],
24*sizeof(uint8_t));*/
}
}
for
(
int
i
=
0
;
i
<
2
*
listSize
;
i
++
)
{
temp_dlist
[
i
]
=
sorted_dlist
[
i
];
}
for
(
int
i
=
0
;
i
<
2
*
listSize
;
i
++
)
{
// printf("i %d => %d\n",i,listIndex[i]);
sorted_dlist
[
i
]
=
temp_dlist
[
listIndex
[
i
]];
}
}
int8_t
polar_decoder_int8
(
int16_t
*
input
,
uint8_t
*
output
,
t_nrPolar_params
*
polarParams
,
...
...
@@ -380,12 +465,9 @@ int8_t polar_decoder_int8(int16_t *input,
uint8_t
currentListSize
=
1
;
decoder_list_int8_t
*
sorted_dlist
[
2
*
listSize
];
decoder_list_int8_t
*
temp_dlist
[
2
*
listSize
];
int
listIndex
[
2
*
listSize
];
int32_t
pathMetric
[
2
*
listSize
];
for
(
uint8_t
i
=
0
;
i
<
2
*
listSize
;
i
++
)
sorted_dlist
[
i
]
=
&
dlist
[
i
];
for
(
uint16_t
currentBit
=
0
;
currentBit
<
polarParams
->
N
;
currentBit
++
){
// printf("***************** BIT %d (currentListSize %d, information_bit_pattern %d)\n",
// currentBit,currentListSize,polarParams->information_bit_pattern[currentBit]);
...
...
@@ -402,110 +484,45 @@ int8_t polar_decoder_int8(int16_t *input,
stop_meas
(
path_metric
);
start_meas
(
sorting
);
// for (int i=0;i<currentListSize;i++) {
// printf("sorted_dlist[%d] pathmetric %d\n",i,sorted_dlist[i]->pathMetric);
// }
if
(
currentListSize
<=
listSize
/
2
)
{
// until listsize is full we need to copy bit and LLR arrays to new entries
// below we only copy the ones we need to keep for sure
decoder_int8_A
(
sorted_dlist
,
currentListSize
,
polarParams
);
#ifdef SHOWCOMP
printf
(
"decoder_int8_A(sorted_dlist,%d,polarParams);
\n
"
,
currentListSize
);
#endif
}
decoder_int8_B
(
sorted_dlist
,
currentListSize
);
#ifdef SHOWCOMP
printf
(
"decoder_int8_B(sorted_dlist,%d);
\n
"
,
currentListSize
);
#endif
for
(
int
i
=
0
;
i
<
currentListSize
;
i
++
)
{
for
(
int
k
=
0
;
k
<
(
polarParams
->
n
+
1
);
k
++
)
{
memcpy
((
void
*
)
&
sorted_dlist
[
i
+
currentListSize
]
->
bit
[
k
][
0
],
(
void
*
)
&
sorted_dlist
[
i
]
->
bit
[
k
][
0
],
sizeof
(
uint8_t
)
*
polarParams
->
N
);
memcpy
((
void
*
)
&
sorted_dlist
[
i
+
currentListSize
]
->
llr
[
k
][
0
],
(
void
*
)
&
sorted_dlist
[
i
]
->
llr
[
k
][
0
],
sizeof
(
int16_t
)
*
polarParams
->
N
);
}
}
}
for
(
int
i
=
0
;
i
<
currentListSize
;
i
++
)
{
sorted_dlist
[
i
]
->
bit
[
0
][
currentBit
]
=
0
;
sorted_dlist
[
i
+
currentListSize
]
->
bit
[
0
][
currentBit
]
=
1
;
}
bitUpdated
[
currentBit
][
0
]
=
1
;
updateCrcChecksum2_int8
(
sorted_dlist
,
extended_crc_generator_matrix
,
currentListSize
,
nonFrozenBit
,
polarParams
->
crcParityBits
);
currentListSize
*=
2
;
//Keep only the best "listSize" number of entries.
if
(
currentListSize
>
listSize
)
{
int
listIndex2
[
listSize
];
for
(
int
i
=
0
;
i
<
currentListSize
;
i
++
)
{
listIndex
[
i
]
=
i
;
pathMetric
[
i
]
=
sorted_dlist
[
i
]
->
pathMetric
;
}
nr_sort_asc_int16_1D_array_ind
(
pathMetric
,
listIndex
,
currentListSize
);
for
(
int
i
=
0
;
i
<
currentListSize
;
i
++
)
{
listIndex2
[
listIndex
[
i
]]
=
i
;
}
// copy the llr/bit arrays that are needed
for
(
int
i
=
0
;
i
<
listSize
;
i
++
)
{
// printf("listIndex[%d] %d\n",i,listIndex[i]);
if
((
listIndex2
[
i
+
listSize
]
<
listSize
)
&&
(
listIndex2
[
i
]
<
listSize
))
{
// both '0' and '1' path metrics are to be kept
// do memcpy of LLR and Bit arrays
for
(
int
k
=
0
;
k
<
(
polarParams
->
n
+
1
);
k
++
)
{
memcpy
((
void
*
)
&
sorted_dlist
[
i
+
listSize
]
->
bit
[
k
][
0
],
(
void
*
)
&
sorted_dlist
[
i
]
->
bit
[
k
][
0
],
sizeof
(
uint8_t
)
*
polarParams
->
N
);
memcpy
((
void
*
)
&
sorted_dlist
[
i
+
listSize
]
->
llr
[
k
][
0
],
(
void
*
)
&
sorted_dlist
[
i
]
->
llr
[
k
][
0
],
sizeof
(
int16_t
)
*
polarParams
->
N
);
}
sorted_dlist
[
i
]
->
bit
[
0
][
currentBit
]
=
0
;
sorted_dlist
[
i
+
listSize
]
->
bit
[
0
][
currentBit
]
=
1
;
}
else
if
(
listIndex2
[
i
+
listSize
]
<
listSize
)
{
// only '1' path metric is to be kept
// just change the current bit from '0' to '1'
for
(
int
k
=
0
;
k
<
(
polarParams
->
n
+
1
);
k
++
)
{
memcpy
((
void
*
)
&
sorted_dlist
[
i
+
listSize
]
->
bit
[
k
][
0
],
(
void
*
)
&
sorted_dlist
[
i
]
->
bit
[
k
][
0
],
sizeof
(
uint8_t
)
*
polarParams
->
N
);
memcpy
((
void
*
)
&
sorted_dlist
[
i
+
listSize
]
->
llr
[
k
][
0
],
(
void
*
)
&
sorted_dlist
[
i
]
->
llr
[
k
][
0
],
sizeof
(
int16_t
)
*
polarParams
->
N
);
}
sorted_dlist
[
i
+
listSize
]
->
bit
[
0
][
currentBit
]
=
1
;
/*
decoder_list_t *tmp = sorted_dlist[i+listSize];
sorted_dlist[i+listSize] = sorted_dlist[i];
sorted_dlist[i+listSize]->pathMetric = tmp->pathMetric;
sorted_dlist[i+listSize]->bit[0][currentBit]=1;
memcpy((void*)&sorted_dlist[i+listSize]->crcChecksum[0],
(void*)&tmp->crcChecksum[0],
24*sizeof(uint8_t));*/
}
}
decoder_int8_C
(
sorted_dlist
,
polarParams
,
currentBit
,
currentListSize
,
listSize
);
currentListSize
=
listSize
;
for
(
int
i
=
0
;
i
<
2
*
listSize
;
i
++
)
{
temp_dlist
[
i
]
=
sorted_dlist
[
i
];
}
for
(
int
i
=
0
;
i
<
2
*
listSize
;
i
++
)
{
// printf("i %d => %d\n",i,listIndex[i]);
sorted_dlist
[
i
]
=
temp_dlist
[
listIndex
[
i
]];
}
}
stop_meas
(
sorting
);
stop_meas
(
sorting
);
nonFrozenBit
++
;
}
}
}
}
for
(
uint8_t
i
=
0
;
i
<
fmin
(
listSize
,
(
pow
(
2
,
polarParams
->
crcCorrectionBits
))
);
i
++
)
{
// printf("list index %d :",i);
...
...
This diff is collapsed.
Click to expand it.
openair1/PHY/CODING/nrPolar_tools/nr_polar_decoding_tools.c
View file @
59c4ddef
This diff is collapsed.
Click to expand it.
openair1/PHY/CODING/nrPolar_tools/nr_polar_defs.h
View file @
59c4ddef
...
...
@@ -147,8 +147,8 @@ typedef struct decoder_list_s {
typedef
struct
decoder_list_int8_s
{
uint8_t
bit
[
1
+
nmax
][
Nmax
];
int16_t
llr
[
1
+
nmax
][
Nmax
];
uint8_t
bit
[
1
+
nmax
][
Nmax
]
__attribute__
((
aligned
(
32
)))
;
int16_t
llr
[
1
+
nmax
][
Nmax
]
__attribute__
((
aligned
(
32
)))
;
uint8_t
crcChecksum
[
24
];
int32_t
pathMetric
;
...
...
This diff is collapsed.
Click to expand it.
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