Skip to content
Projects
Groups
Snippets
Help
Loading...
Help
Support
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in / Register
Toggle navigation
O
OpenXG-RAN
Project overview
Project overview
Details
Activity
Releases
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Issues
0
Issues
0
List
Boards
Labels
Milestones
Merge Requests
0
Merge Requests
0
CI / CD
CI / CD
Pipelines
Jobs
Schedules
Analytics
Analytics
CI / CD
Repository
Value Stream
Wiki
Wiki
Snippets
Snippets
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Create a new issue
Jobs
Commits
Issue Boards
Open sidebar
wangwenhui
OpenXG-RAN
Commits
5b42e83d
Commit
5b42e83d
authored
Aug 19, 2018
by
yilmazt
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
Putting byte2bit operations within polar coders
parent
e6e99716
Changes
7
Show whitespace changes
Inline
Side-by-side
Showing
7 changed files
with
386 additions
and
61 deletions
+386
-61
openair1/PHY/CODING/TESTBENCH/polartest.c
openair1/PHY/CODING/TESTBENCH/polartest.c
+12
-17
openair1/PHY/CODING/nrPolar_tools/nr_polar_decoder.c
openair1/PHY/CODING/nrPolar_tools/nr_polar_decoder.c
+263
-6
openair1/PHY/CODING/nrPolar_tools/nr_polar_defs.h
openair1/PHY/CODING/nrPolar_tools/nr_polar_defs.h
+34
-7
openair1/PHY/CODING/nrPolar_tools/nr_polar_encoder.c
openair1/PHY/CODING/nrPolar_tools/nr_polar_encoder.c
+50
-15
openair1/PHY/CODING/nrPolar_tools/nr_polar_pbch_defs.h
openair1/PHY/CODING/nrPolar_tools/nr_polar_pbch_defs.h
+9
-12
openair1/PHY/CODING/nr_polar_init.c
openair1/PHY/CODING/nr_polar_init.c
+14
-1
openair1/PHY/NR_UE_TRANSPORT/nr_pbch.c
openair1/PHY/NR_UE_TRANSPORT/nr_pbch.c
+4
-3
No files found.
openair1/PHY/CODING/TESTBENCH/polartest.c
View file @
5b42e83d
...
...
@@ -7,8 +7,6 @@
#include <time.h>
#include "PHY/CODING/nrPolar_tools/nr_polar_defs.h"
#include "PHY/NR_TRANSPORT/nr_dci.h"
#include "PHY/defs_gNB.h"
#include "SIMULATION/TOOLS/sim.h"
//#define DEBUG_POLAR_PARAMS
...
...
@@ -22,16 +20,6 @@ int main(int argc, char *argv[]) {
reset_meas
(
&
timeEncoder
);
reset_meas
(
&
timeDecoder
);
//gNB scheduler
/*PHY_VARS_gNB *gNB = RC.gNB[0][0];
NR_DL_FRAME_PARMS *fp = &gNB->frame_parms;
nfapi_nr_config_request_t *cfg = &gNB->gNB_config;
nfapi_nr_dl_config_request_pdu_t *pdu;
nfapi_nr_dl_config_pdcch_parameters_rel15_t *params_rel15 = &pdu->dci_dl_pdu.pdcch_params_rel15;
params_rel15->rnti_type = NFAPI_NR_RNTI_RA;
params_rel15->dci_format = NFAPI_NR_DL_DCI_FORMAT_1_0;*/
randominit
(
0
);
//Default simulation values (Aim for iterations = 1000000.)
int
itr
,
iterations
=
1000
,
arguments
,
polarMessageType
=
0
;
//0=PBCH, 1=DCI, -1=UCI
...
...
@@ -42,8 +30,7 @@ int main(int argc, char *argv[]) {
int8_t
decoderState
=
0
,
blockErrorState
=
0
;
//0 = Success, -1 = Decoding failed, 1 = Block Error.
uint16_t
testLength
=
0
,
coderLength
=
0
,
blockErrorCumulative
=
0
,
bitErrorCumulative
=
0
;
double
timeEncoderCumulative
=
0
,
timeDecoderCumulative
=
0
;
uint8_t
aggregation_level
,
decoderListSize
=
8
,
pathMetricAppr
=
0
;
//0 --> eq. (8a) and (11b), 1 --> eq. (9) and (12)
uint8_t
aggregation_level
;
while
((
arguments
=
getopt
(
argc
,
argv
,
"s:d:f:m:i:l:a:"
))
!=
-
1
)
switch
(
arguments
)
...
...
@@ -171,16 +158,24 @@ int main(int argc, char *argv[]) {
modulatedInput
[
i
]
=
(
-
1
)
/
sqrt
(
2
);
channelOutput
[
i
]
=
modulatedInput
[
i
]
+
(
gaussdouble
(
0
.
0
,
1
.
0
)
*
(
1
/
sqrt
(
2
*
SNR_lin
)));
printf
(
"%f
\n
"
,
channelOutput
[
i
]);
}
start_meas
(
&
timeDecoder
);
decoderState
=
polar_decoder
(
channelOutput
,
/*
decoderState = polar_decoder(channelOutput,
estimatedOutput,
currentPtr,
decoderListSize
,
NR_POLAR_DECODER_LISTSIZE
,
aPrioriArray,
pathMetricAppr
);
NR_POLAR_DECODER_PATH_METRIC_APPROXIMATION);*/
decoderState
=
polar_decoder_aPriori
(
channelOutput
,
estimatedOutput
,
currentPtr
,
NR_POLAR_DECODER_LISTSIZE
,
NR_POLAR_DECODER_PATH_METRIC_APPROXIMATION
,
aPrioriArray
);
stop_meas
(
&
timeDecoder
);
//calculate errors
...
...
openair1/PHY/CODING/nrPolar_tools/nr_polar_decoder.c
View file @
5b42e83d
...
...
@@ -19,6 +19,17 @@
* contact@openairinterface.org
*/
/*!\file PHY/CODING/nrPolar_tools/nr_polar_decoder.c
* \brief
* \author Turker Yilmaz
* \date 2018
* \version 0.1
* \company EURECOM
* \email turker.yilmaz@eurecom.fr
* \note
* \warning
*/
/*
* Return values:
* 0 --> Success
...
...
@@ -26,16 +37,15 @@
*/
#include "PHY/CODING/nrPolar_tools/nr_polar_defs.h"
#include "PHY/CODING/nrPolar_tools/nr_polar_pbch_defs.h"
int8_t
polar_decoder
(
double
*
input
,
uint
8_t
*
outp
ut
,
uint
32_t
*
o
ut
,
t_nrPolar_paramsPtr
polarParams
,
uint8_t
listSize
,
double
*
aPrioriPayload
,
uint8_t
pathMetricAppr
)
{
//Assumes no a priori knowledge.
uint8_t
***
bit
=
nr_alloc_uint8_t_3D_array
(
polarParams
->
N
,
(
polarParams
->
n
+
1
),
2
*
listSize
);
uint8_t
**
bitUpdated
=
nr_alloc_uint8_t_2D_array
(
polarParams
->
N
,
(
polarParams
->
n
+
1
));
//0=False, 1=True
...
...
@@ -110,11 +120,253 @@ int8_t polar_decoder(
if
(
polarParams
->
information_bit_pattern
[
currentBit
]
==
0
)
{
//Frozen bit.
updatePathMetric
(
pathMetric
,
llr
,
currentListSize
,
0
,
currentBit
,
pathMetricAppr
);
//approximation=0 --> 11b, approximation=1 --> 12
}
else
{
//Information or CRC bit.
if
(
(
polarParams
->
interleaving_pattern
[
nonFrozenBit
]
<=
polarParams
->
payloadBits
)
&&
(
aPrioriPayload
[
polarParams
->
interleaving_pattern
[
nonFrozenBit
]]
==
0
)
)
{
updatePathMetric2
(
pathMetric
,
llr
,
currentListSize
,
currentBit
,
pathMetricAppr
);
for
(
int
i
=
0
;
i
<
currentListSize
;
i
++
)
{
for
(
int
j
=
0
;
j
<
polarParams
->
N
;
j
++
)
{
for
(
int
k
=
0
;
k
<
(
polarParams
->
n
+
1
);
k
++
)
{
bit
[
j
][
k
][
i
+
currentListSize
]
=
bit
[
j
][
k
][
i
];
llr
[
j
][
k
][
i
+
currentListSize
]
=
llr
[
j
][
k
][
i
];}}}
for
(
int
i
=
0
;
i
<
currentListSize
;
i
++
)
{
bit
[
currentBit
][
0
][
i
]
=
0
;
crcState
[
i
+
currentListSize
]
=
crcState
[
i
];
}
for
(
int
i
=
currentListSize
;
i
<
2
*
currentListSize
;
i
++
)
bit
[
currentBit
][
0
][
i
]
=
1
;
bitUpdated
[
currentBit
][
0
]
=
1
;
updateCrcChecksum2
(
crcChecksum
,
extended_crc_generator_matrix
,
currentListSize
,
nonFrozenBit
,
polarParams
->
crcParityBits
);
currentListSize
*=
2
;
//Keep only the best "listSize" number of entries.
if
(
currentListSize
>
listSize
)
{
for
(
uint8_t
i
=
0
;
i
<
2
*
listSize
;
i
++
)
listIndex
[
i
]
=
i
;
nr_sort_asc_double_1D_array_ind
(
pathMetric
,
listIndex
,
currentListSize
);
//sort listIndex[listSize, ..., 2*listSize-1] in descending order.
uint8_t
swaps
,
tempInd
;
for
(
uint8_t
i
=
0
;
i
<
listSize
;
i
++
)
{
swaps
=
0
;
for
(
uint8_t
j
=
listSize
;
j
<
(
2
*
listSize
-
i
)
-
1
;
j
++
)
{
if
(
listIndex
[
j
+
1
]
>
listIndex
[
j
])
{
tempInd
=
listIndex
[
j
];
listIndex
[
j
]
=
listIndex
[
j
+
1
];
listIndex
[
j
+
1
]
=
tempInd
;
swaps
++
;
}
}
if
(
swaps
==
0
)
break
;
}
//First, backup the best "listSize" number of entries.
for
(
int
k
=
(
listSize
-
1
);
k
>
0
;
k
--
)
{
for
(
int
i
=
0
;
i
<
polarParams
->
N
;
i
++
)
{
for
(
int
j
=
0
;
j
<
(
polarParams
->
n
+
1
);
j
++
)
{
bit
[
i
][
j
][
listIndex
[(
2
*
listSize
-
1
)
-
k
]]
=
bit
[
i
][
j
][
listIndex
[
k
]];
llr
[
i
][
j
][
listIndex
[(
2
*
listSize
-
1
)
-
k
]]
=
llr
[
i
][
j
][
listIndex
[
k
]];
}
}
}
for
(
int
k
=
(
listSize
-
1
);
k
>
0
;
k
--
)
{
for
(
int
i
=
0
;
i
<
polarParams
->
crcParityBits
;
i
++
)
{
crcChecksum
[
i
][
listIndex
[(
2
*
listSize
-
1
)
-
k
]]
=
crcChecksum
[
i
][
listIndex
[
k
]];
}
}
for
(
int
k
=
(
listSize
-
1
);
k
>
0
;
k
--
)
crcState
[
listIndex
[(
2
*
listSize
-
1
)
-
k
]]
=
crcState
[
listIndex
[
k
]];
//Copy the best "listSize" number of entries to the first indices.
for
(
int
k
=
0
;
k
<
listSize
;
k
++
)
{
if
(
k
>
listIndex
[
k
])
{
copyIndex
=
listIndex
[(
2
*
listSize
-
1
)
-
k
];
}
else
{
//Use the backup.
copyIndex
=
listIndex
[
k
];
}
for
(
int
i
=
0
;
i
<
polarParams
->
N
;
i
++
)
{
for
(
int
j
=
0
;
j
<
(
polarParams
->
n
+
1
);
j
++
)
{
bit
[
i
][
j
][
k
]
=
bit
[
i
][
j
][
copyIndex
];
llr
[
i
][
j
][
k
]
=
llr
[
i
][
j
][
copyIndex
];
}
}
}
for
(
int
k
=
0
;
k
<
listSize
;
k
++
)
{
if
(
k
>
listIndex
[
k
])
{
copyIndex
=
listIndex
[(
2
*
listSize
-
1
)
-
k
];
}
else
{
//Use the backup.
copyIndex
=
listIndex
[
k
];
}
for
(
int
i
=
0
;
i
<
polarParams
->
crcParityBits
;
i
++
)
{
crcChecksum
[
i
][
k
]
=
crcChecksum
[
i
][
copyIndex
];
}
}
for
(
int
k
=
0
;
k
<
listSize
;
k
++
)
{
if
(
k
>
listIndex
[
k
])
{
copyIndex
=
listIndex
[(
2
*
listSize
-
1
)
-
k
];
}
else
{
//Use the backup.
copyIndex
=
listIndex
[
k
];
}
crcState
[
k
]
=
crcState
[
copyIndex
];
}
currentListSize
=
listSize
;
}
for
(
int
i
=
0
;
i
<
polarParams
->
crcParityBits
;
i
++
)
{
if
(
last1ind
[
i
]
==
nonFrozenBit
)
{
checkCrcBits
=
i
;
break
;
}
}
if
(
checkCrcBits
>
(
-
1
)
)
{
for
(
uint8_t
i
=
0
;
i
<
currentListSize
;
i
++
)
{
if
(
crcChecksum
[
checkCrcBits
][
i
]
==
1
)
{
crcState
[
i
]
=
0
;
//0=False, 1=True
}
}
}
for
(
uint8_t
i
=
0
;
i
<
currentListSize
;
i
++
)
decoderIterationCheck
+=
crcState
[
i
];
if
(
decoderIterationCheck
==
0
)
{
//perror("[SCL polar decoder] All list entries have failed the CRC checks.");
free
(
d_tilde
);
free
(
pathMetric
);
free
(
crcState
);
nr_free_uint8_t_3D_array
(
bit
,
polarParams
->
N
,
(
polarParams
->
n
+
1
));
nr_free_double_3D_array
(
llr
,
polarParams
->
N
,
(
polarParams
->
n
+
1
));
nr_free_uint8_t_2D_array
(
crcChecksum
,
polarParams
->
crcParityBits
);
return
(
-
1
);
}
nonFrozenBit
++
;
decoderIterationCheck
=
0
;
checkCrcBits
=-
1
;
}
}
for
(
uint8_t
i
=
0
;
i
<
2
*
listSize
;
i
++
)
listIndex
[
i
]
=
i
;
nr_sort_asc_double_1D_array_ind
(
pathMetric
,
listIndex
,
currentListSize
);
for
(
uint8_t
i
=
0
;
i
<
fmin
(
listSize
,
(
pow
(
2
,
polarParams
->
crcCorrectionBits
))
);
i
++
)
{
if
(
crcState
[
listIndex
[
i
]]
==
1
)
{
for
(
int
j
=
0
;
j
<
polarParams
->
N
;
j
++
)
polarParams
->
nr_polar_u
[
j
]
=
bit
[
j
][
0
][
listIndex
[
i
]];
//Extract the information bits (û to ĉ)
nr_polar_info_bit_extraction
(
polarParams
->
nr_polar_u
,
polarParams
->
nr_polar_cPrime
,
polarParams
->
information_bit_pattern
,
polarParams
->
N
);
//Deinterleaving (ĉ to b)
nr_polar_deinterleaver
(
polarParams
->
nr_polar_cPrime
,
polarParams
->
nr_polar_b
,
polarParams
->
interleaving_pattern
,
polarParams
->
K
);
//Remove the CRC (â)
for
(
int
j
=
0
;
j
<
polarParams
->
payloadBits
;
j
++
)
polarParams
->
nr_polar_a
[
j
]
=
polarParams
->
nr_polar_b
[
j
];
break
;
}
}
free
(
d_tilde
);
free
(
pathMetric
);
free
(
crcState
);
nr_free_uint8_t_3D_array
(
bit
,
polarParams
->
N
,
(
polarParams
->
n
+
1
));
nr_free_double_3D_array
(
llr
,
polarParams
->
N
,
(
polarParams
->
n
+
1
));
nr_free_uint8_t_2D_array
(
crcChecksum
,
polarParams
->
crcParityBits
);
nr_free_uint8_t_2D_array
(
extended_crc_generator_matrix
,
polarParams
->
K
);
nr_free_uint8_t_2D_array
(
tempECGM
,
polarParams
->
K
);
/*
* Return bits.
*/
nr_byte2bit_uint8_32_t
(
polarParams
->
nr_polar_a
,
polarParams
->
payloadBits
,
out
);
return
(
0
);
}
int8_t
polar_decoder_aPriori
(
double
*
input
,
uint32_t
*
out
,
t_nrPolar_paramsPtr
polarParams
,
uint8_t
listSize
,
uint8_t
pathMetricAppr
,
double
*
aPrioriPayload
)
{
uint8_t
***
bit
=
nr_alloc_uint8_t_3D_array
(
polarParams
->
N
,
(
polarParams
->
n
+
1
),
2
*
listSize
);
uint8_t
**
bitUpdated
=
nr_alloc_uint8_t_2D_array
(
polarParams
->
N
,
(
polarParams
->
n
+
1
));
//0=False, 1=True
uint8_t
**
llrUpdated
=
nr_alloc_uint8_t_2D_array
(
polarParams
->
N
,
(
polarParams
->
n
+
1
));
//0=False, 1=True
double
***
llr
=
nr_alloc_double_3D_array
(
polarParams
->
N
,
(
polarParams
->
n
+
1
),
2
*
listSize
);
uint8_t
**
crcChecksum
=
nr_alloc_uint8_t_2D_array
(
polarParams
->
crcParityBits
,
2
*
listSize
);
double
*
pathMetric
=
malloc
(
sizeof
(
double
)
*
(
2
*
listSize
));
uint8_t
*
crcState
=
malloc
(
sizeof
(
uint8_t
)
*
(
2
*
listSize
));
//0=False, 1=True
for
(
int
i
=
0
;
i
<
(
2
*
listSize
);
i
++
)
{
pathMetric
[
i
]
=
0
;
crcState
[
i
]
=
1
;
}
for
(
int
i
=
0
;
i
<
polarParams
->
N
;
i
++
)
{
llrUpdated
[
i
][
polarParams
->
n
]
=
1
;
bitUpdated
[
i
][
0
]
=
((
polarParams
->
information_bit_pattern
[
i
]
+
1
)
%
2
);
}
uint8_t
**
extended_crc_generator_matrix
=
malloc
(
polarParams
->
K
*
sizeof
(
uint8_t
*
));
//G_P3
uint8_t
**
tempECGM
=
malloc
(
polarParams
->
K
*
sizeof
(
uint8_t
*
));
//G_P2
for
(
int
i
=
0
;
i
<
polarParams
->
K
;
i
++
){
extended_crc_generator_matrix
[
i
]
=
malloc
(
polarParams
->
crcParityBits
*
sizeof
(
uint8_t
));
tempECGM
[
i
]
=
malloc
(
polarParams
->
crcParityBits
*
sizeof
(
uint8_t
));
}
for
(
int
i
=
0
;
i
<
polarParams
->
payloadBits
;
i
++
)
{
for
(
int
j
=
0
;
j
<
polarParams
->
crcParityBits
;
j
++
)
{
tempECGM
[
i
][
j
]
=
polarParams
->
crc_generator_matrix
[
i
][
j
];
}
}
for
(
int
i
=
polarParams
->
payloadBits
;
i
<
polarParams
->
K
;
i
++
)
{
for
(
int
j
=
0
;
j
<
polarParams
->
crcParityBits
;
j
++
)
{
if
(
(
i
-
polarParams
->
payloadBits
)
==
j
){
tempECGM
[
i
][
j
]
=
1
;
}
else
{
tempECGM
[
i
][
j
]
=
0
;
}
}
}
for
(
int
i
=
0
;
i
<
polarParams
->
K
;
i
++
)
{
for
(
int
j
=
0
;
j
<
polarParams
->
crcParityBits
;
j
++
)
{
extended_crc_generator_matrix
[
i
][
j
]
=
tempECGM
[
polarParams
->
interleaving_pattern
[
i
]][
j
];
}
}
//The index of the last 1-valued bit that appears in each column.
uint16_t
last1ind
[
polarParams
->
crcParityBits
];
for
(
int
j
=
0
;
j
<
polarParams
->
crcParityBits
;
j
++
)
{
for
(
int
i
=
0
;
i
<
polarParams
->
K
;
i
++
)
{
if
(
extended_crc_generator_matrix
[
i
][
j
]
==
1
)
last1ind
[
j
]
=
i
;
}
}
double
*
d_tilde
=
malloc
(
sizeof
(
double
)
*
polarParams
->
N
);
nr_polar_rate_matching
(
input
,
d_tilde
,
polarParams
->
rate_matching_pattern
,
polarParams
->
K
,
polarParams
->
N
,
polarParams
->
encoderLength
);
for
(
int
j
=
0
;
j
<
polarParams
->
N
;
j
++
)
llr
[
j
][
polarParams
->
n
][
0
]
=
d_tilde
[
j
];
/*
* SCL polar decoder.
*/
uint32_t
nonFrozenBit
=
0
;
uint8_t
currentListSize
=
1
;
uint8_t
decoderIterationCheck
=
0
;
int16_t
checkCrcBits
=-
1
;
uint8_t
listIndex
[
2
*
listSize
],
copyIndex
;
for
(
uint16_t
currentBit
=
0
;
currentBit
<
polarParams
->
N
;
currentBit
++
){
updateLLR
(
llr
,
llrUpdated
,
bit
,
bitUpdated
,
currentListSize
,
currentBit
,
0
,
polarParams
->
N
,
(
polarParams
->
n
+
1
),
pathMetricAppr
);
if
(
polarParams
->
information_bit_pattern
[
currentBit
]
==
0
)
{
//Frozen bit.
updatePathMetric
(
pathMetric
,
llr
,
currentListSize
,
0
,
currentBit
,
pathMetricAppr
);
//approximation=0 --> 11b, approximation=1 --> 12
}
else
{
//Information or CRC bit.
if
(
(
polarParams
->
interleaving_pattern
[
nonFrozenBit
]
<=
polarParams
->
payloadBits
)
&&
(
aPrioriPayload
[
polarParams
->
interleaving_pattern
[
nonFrozenBit
]]
==
0
)
)
{
//Information bit with known value of "0".
updatePathMetric
(
pathMetric
,
llr
,
currentListSize
,
0
,
currentBit
,
pathMetricAppr
);
bitUpdated
[
currentBit
][
0
]
=
1
;
//0=False, 1=True
}
else
if
(
(
polarParams
->
interleaving_pattern
[
nonFrozenBit
]
<=
polarParams
->
payloadBits
)
&&
(
aPrioriPayload
[
polarParams
->
interleaving_pattern
[
nonFrozenBit
]]
==
1
)
)
{
}
else
if
(
(
polarParams
->
interleaving_pattern
[
nonFrozenBit
]
<=
polarParams
->
payloadBits
)
&&
(
aPrioriPayload
[
polarParams
->
interleaving_pattern
[
nonFrozenBit
]]
==
1
)
)
{
//Information bit with known value of "1".
updatePathMetric
(
pathMetric
,
llr
,
currentListSize
,
1
,
currentBit
,
pathMetricAppr
);
for
(
uint8_t
i
=
0
;
i
<
currentListSize
;
i
++
)
bit
[
currentBit
][
0
][
i
]
=
1
;
...
...
@@ -257,7 +509,7 @@ int8_t polar_decoder(
nr_polar_deinterleaver
(
polarParams
->
nr_polar_cPrime
,
polarParams
->
nr_polar_b
,
polarParams
->
interleaving_pattern
,
polarParams
->
K
);
//Remove the CRC (â)
for
(
int
j
=
0
;
j
<
polarParams
->
payloadBits
;
j
++
)
output
[
j
]
=
polarParams
->
nr_polar_b
[
j
];
for
(
int
j
=
0
;
j
<
polarParams
->
payloadBits
;
j
++
)
polarParams
->
nr_polar_a
[
j
]
=
polarParams
->
nr_polar_b
[
j
];
break
;
}
...
...
@@ -271,5 +523,10 @@ int8_t polar_decoder(
nr_free_uint8_t_2D_array
(
crcChecksum
,
polarParams
->
crcParityBits
);
nr_free_uint8_t_2D_array
(
extended_crc_generator_matrix
,
polarParams
->
K
);
nr_free_uint8_t_2D_array
(
tempECGM
,
polarParams
->
K
);
/*
* Return bits.
*/
nr_byte2bit_uint8_32_t
(
polarParams
->
nr_polar_a
,
polarParams
->
payloadBits
,
out
);
return
(
0
);
}
openair1/PHY/CODING/nrPolar_tools/nr_polar_defs.h
View file @
5b42e83d
...
...
@@ -19,6 +19,17 @@
* contact@openairinterface.org
*/
/*!\file PHY/CODING/nrPolar_tools/nr_polar_defs.h
* \brief
* \author Turker Yilmaz
* \date 2018
* \version 0.1
* \company EURECOM
* \email turker.yilmaz@eurecom.fr
* \note
* \warning
*/
#ifndef __NR_POLAR_DEFS__H__
#define __NR_POLAR_DEFS__H__
...
...
@@ -32,6 +43,9 @@
#include "PHY/CODING/nrPolar_tools/nr_polar_uci_defs.h"
#include "PHY/CODING/nrPolar_tools/nr_polar_pbch_defs.h"
#define NR_POLAR_DECODER_LISTSIZE 8 //uint8_t
#define NR_POLAR_DECODER_PATH_METRIC_APPROXIMATION 0 //uint8_t; 0 --> eq. (8a) and (11b), 1 --> eq. (9) and (12)
static
const
uint8_t
nr_polar_subblock_interleaver_pattern
[
32
]
=
{
0
,
1
,
2
,
4
,
3
,
5
,
6
,
7
,
8
,
16
,
9
,
17
,
10
,
18
,
11
,
19
,
12
,
20
,
13
,
21
,
14
,
22
,
15
,
23
,
24
,
25
,
26
,
28
,
27
,
29
,
30
,
31
};
struct
nrPolar_params
{
...
...
@@ -65,20 +79,33 @@ struct nrPolar_params {
uint8_t
**
crc_generator_matrix
;
//G_P
uint8_t
**
G_N
;
//polar_encoder vectors
:
//polar_encoder vectors
uint8_t
*
nr_polar_crc
;
uint8_t
*
nr_polar_b
;
uint8_t
*
nr_polar_d
;
uint8_t
*
nr_polar_e
;
//Polar Coding vectors
uint8_t
*
nr_polar_a
;
uint8_t
*
nr_polar_cPrime
;
uint8_t
*
nr_polar_b
;
uint8_t
*
nr_polar_u
;
uint8_t
*
nr_polar_d
;
}
__attribute__
((
__packed__
));
typedef
struct
nrPolar_params
t_nrPolar_params
;
typedef
t_nrPolar_params
*
t_nrPolar_paramsPtr
;
void
polar_encoder
(
uint8_t
*
input
,
uint8_t
*
output
,
t_nrPolar_paramsPtr
polarParams
);
int8_t
polar_decoder
(
double
*
input
,
uint8_t
*
output
,
t_nrPolar_paramsPtr
polarParams
,
uint8_t
listSize
,
double
*
aPrioriPayload
,
uint8_t
pathMetricAppr
);
void
polar_encoder
(
uint32_t
*
input
,
uint32_t
*
output
,
t_nrPolar_paramsPtr
polarParams
);
int8_t
polar_decoder
(
double
*
input
,
uint32_t
*
output
,
t_nrPolar_paramsPtr
polarParams
,
uint8_t
listSize
,
uint8_t
pathMetricAppr
);
int8_t
polar_decoder_aPriori
(
double
*
input
,
uint32_t
*
output
,
t_nrPolar_paramsPtr
polarParams
,
uint8_t
listSize
,
uint8_t
pathMetricAppr
,
double
*
aPrioriPayload
);
void
nr_polar_init
(
t_nrPolar_paramsPtr
*
polarParams
,
int8_t
messageType
,
...
...
openair1/PHY/CODING/nrPolar_tools/nr_polar_encoder.c
View file @
5b42e83d
...
...
@@ -19,40 +19,75 @@
* contact@openairinterface.org
*/
/*!\file PHY/CODING/nrPolar_tools/nr_polar_encoder.c
* \brief
* \author Turker Yilmaz
* \date 2018
* \version 0.1
* \company EURECOM
* \email turker.yilmaz@eurecom.fr
* \note
* \warning
*/
#include "PHY/CODING/nrPolar_tools/nr_polar_defs.h"
void
polar_encoder
(
uint8_t
*
input
,
uint8_t
*
output
,
void
polar_encoder
(
uint32_t
*
in
,
uint32_t
*
out
,
t_nrPolar_paramsPtr
polarParams
)
{
nr_bit2byte_uint32_8_t
(
in
,
polarParams
->
payloadBits
,
polarParams
->
nr_polar_a
);
/*
* Bytewise operations
*/
//Calculate CRC.
nr_matrix_multiplication_uint8_t_1D_uint8_t_2D
(
input
,
polarParams
->
crc_generator_matrix
,
polarParams
->
nr_polar_crc
,
polarParams
->
payloadBits
,
polarParams
->
crcParityBits
);
for
(
uint8_t
i
=
0
;
i
<
polarParams
->
crcParityBits
;
i
++
)
polarParams
->
nr_polar_crc
[
i
]
=
(
polarParams
->
nr_polar_crc
[
i
]
%
2
);
nr_matrix_multiplication_uint8_t_1D_uint8_t_2D
(
polarParams
->
nr_polar_a
,
polarParams
->
crc_generator_matrix
,
polarParams
->
nr_polar_crc
,
polarParams
->
payloadBits
,
polarParams
->
crcParityBits
);
for
(
uint8_t
i
=
0
;
i
<
polarParams
->
crcParityBits
;
i
++
)
polarParams
->
nr_polar_crc
[
i
]
=
(
polarParams
->
nr_polar_crc
[
i
]
%
2
);
//Attach CRC to the Transport Block. (a to b)
for
(
uint16_t
i
=
0
;
i
<
polarParams
->
payloadBits
;
i
++
)
polarParams
->
nr_polar_b
[
i
]
=
input
[
i
];
for
(
uint16_t
i
=
0
;
i
<
polarParams
->
payloadBits
;
i
++
)
polarParams
->
nr_polar_b
[
i
]
=
polarParams
->
nr_polar_a
[
i
];
for
(
uint16_t
i
=
polarParams
->
payloadBits
;
i
<
polarParams
->
K
;
i
++
)
polarParams
->
nr_polar_b
[
i
]
=
polarParams
->
nr_polar_crc
[
i
-
(
polarParams
->
payloadBits
)];
//Interleaving (c to c')
nr_polar_interleaver
(
polarParams
->
nr_polar_b
,
polarParams
->
nr_polar_cPrime
,
polarParams
->
interleaving_pattern
,
polarParams
->
K
);
nr_polar_interleaver
(
polarParams
->
nr_polar_b
,
polarParams
->
nr_polar_cPrime
,
polarParams
->
interleaving_pattern
,
polarParams
->
K
);
//Bit insertion (c' to u)
nr_polar_bit_insertion
(
polarParams
->
nr_polar_cPrime
,
polarParams
->
nr_polar_u
,
polarParams
->
N
,
polarParams
->
K
,
polarParams
->
Q_I_N
,
polarParams
->
Q_PC_N
,
polarParams
->
n_pc
);
nr_polar_bit_insertion
(
polarParams
->
nr_polar_cPrime
,
polarParams
->
nr_polar_u
,
polarParams
->
N
,
polarParams
->
K
,
polarParams
->
Q_I_N
,
polarParams
->
Q_PC_N
,
polarParams
->
n_pc
);
//Encoding (u to d)
nr_matrix_multiplication_uint8_t_1D_uint8_t_2D
(
polarParams
->
nr_polar_u
,
polarParams
->
G_N
,
polarParams
->
nr_polar_d
,
polarParams
->
N
,
polarParams
->
N
);
for
(
uint16_t
i
=
0
;
i
<
polarParams
->
N
;
i
++
)
polarParams
->
nr_polar_d
[
i
]
=
(
polarParams
->
nr_polar_d
[
i
]
%
2
);
nr_matrix_multiplication_uint8_t_1D_uint8_t_2D
(
polarParams
->
nr_polar_u
,
polarParams
->
G_N
,
polarParams
->
nr_polar_d
,
polarParams
->
N
,
polarParams
->
N
);
for
(
uint16_t
i
=
0
;
i
<
polarParams
->
N
;
i
++
)
polarParams
->
nr_polar_d
[
i
]
=
(
polarParams
->
nr_polar_d
[
i
]
%
2
);
//Rate matching
//Sub-block interleaving (d to y) and Bit selection (y to e)
nr_polar_rate_matcher
(
polarParams
->
nr_polar_d
,
output
,
polarParams
->
rate_matching_pattern
,
polarParams
->
encoderLength
);
nr_polar_rate_matcher
(
polarParams
->
nr_polar_d
,
polarParams
->
nr_polar_e
,
polarParams
->
rate_matching_pattern
,
polarParams
->
encoderLength
);
/*
* Return bits.
*/
nr_byte2bit_uint8_32_t
(
polarParams
->
nr_polar_e
,
polarParams
->
encoderLength
,
out
);
}
openair1/PHY/CODING/nrPolar_tools/nr_polar_pbch_defs.h
View file @
5b42e83d
...
...
@@ -19,15 +19,15 @@
* contact@openairinterface.org
*/
/*!
\file PHY/CODING/nrPolar_tools/nr_polar_dci
_defs.h
* \brief Defines the constant variables for polar coding of the PBCH from 38-212, V15.1.1 2018-04.
* \author
* \date 2018
* \version 0.1
* \company Eurecom
* \email:
* \note
* \warning
/*!
\file PHY/CODING/nrPolar_tools/nr_polar
_defs.h
* \brief Defines the constant variables for polar coding of the PBCH from 38-212, V15.1.1 2018-04.
* \author Turker Yilmaz
* \date 2018
* \version 0.1
* \company EURECOM
* \email turker.yilmaz@eurecom.fr
* \note
* \warning
*/
#ifndef __NR_POLAR_PBCH_DEFS__H__
...
...
@@ -52,9 +52,6 @@
#define NR_POLAR_PBCH_I_BIL 0 //uint8_t
#define NR_POLAR_PBCH_E 864 //uint16_t
//#define NR_POLAR_PBCH_L 5 //uint8_t
#define NR_POLAR_PBCH_PATH_METRIC_APPROXIMATION 0 //uint8_t; 0 --> eq. (8a) and (11b), 1 --> eq. (9) and (12)
/*
* TEST CODE
*/
...
...
openair1/PHY/CODING/nr_polar_init.c
View file @
5b42e83d
...
...
@@ -19,6 +19,17 @@
* contact@openairinterface.org
*/
/*!\file PHY/CODING/nr_polar_init.h
* \brief
* \author Turker Yilmaz
* \date 2018
* \version 0.1
* \company EURECOM
* \email turker.yilmaz@eurecom.fr
* \note
* \warning
*/
#include "nrPolar_tools/nr_polar_defs.h"
#include "PHY/CODING/nrPolar_tools/nr_polar_dci_defs.h"
#include "PHY/CODING/nrPolar_tools/nr_polar_uci_defs.h"
...
...
@@ -83,13 +94,15 @@ void nr_polar_init(t_nrPolar_paramsPtr *polarParams,
//polar_encoder vectors:
newPolarInitNode
->
nr_polar_crc
=
malloc
(
sizeof
(
uint8_t
)
*
newPolarInitNode
->
crcParityBits
);
newPolarInitNode
->
nr_polar_cPrime
=
malloc
(
sizeof
(
uint8_t
)
*
newPolarInitNode
->
K
);
newPolarInitNode
->
nr_polar_d
=
malloc
(
sizeof
(
uint8_t
)
*
newPolarInitNode
->
N
);
newPolarInitNode
->
nr_polar_e
=
malloc
(
sizeof
(
uint8_t
)
*
newPolarInitNode
->
encoderLength
);
//Polar Coding vectors
newPolarInitNode
->
nr_polar_u
=
malloc
(
sizeof
(
uint8_t
)
*
newPolarInitNode
->
N
);
//Decoder: nr_polar_uHat
newPolarInitNode
->
nr_polar_cPrime
=
malloc
(
sizeof
(
uint8_t
)
*
newPolarInitNode
->
K
);
//Decoder: nr_polar_cHat
newPolarInitNode
->
nr_polar_b
=
malloc
(
sizeof
(
uint8_t
)
*
newPolarInitNode
->
K
);
//Decoder: nr_polar_bHat
newPolarInitNode
->
nr_polar_a
=
malloc
(
sizeof
(
uint8_t
)
*
newPolarInitNode
->
payloadBits
);
//Decoder: nr_polar_aHat
newPolarInitNode
->
Q_0_Nminus1
=
nr_polar_sequence_pattern
(
newPolarInitNode
->
n
);
...
...
openair1/PHY/NR_UE_TRANSPORT/nr_pbch.c
View file @
5b42e83d
...
...
@@ -501,13 +501,13 @@ uint16_t nr_rx_pbch( PHY_VARS_NR_UE *ue,
unsigned
short
idx_demod
=
0
;
int8_t
decoderState
=
0
;
uint8_t
decoderListSize
=
8
,
pathMetricAppr
=
0
;
double
aPrioriArray
[
frame_parms
->
pbch_polar_params
.
payloadBits
];
// assume no a priori knowledge available about the payload.
memset
(
&
pbch_a
[
0
],
0
,
sizeof
(
uint8_t
)
*
NR_POLAR_PBCH_PAYLOAD_BITS
);
//printf("nr_pbch_ue nid_cell %d\n",frame_parms->Nid_cell);
for
(
int
i
=
0
;
i
<
frame_parms
->
pbch_polar_params
.
payloadBits
;
i
++
)
aPrioriArray
[
i
]
=
NAN
;
/*double aPrioriArray[frame_parms->pbch_polar_params.payloadBits]; // assume no a priori knowledge available about the payload.
for (int i=0; i<frame_parms->pbch_polar_params.payloadBits; i++) aPrioriArray[i] = NAN;*/
int
subframe_rx
=
proc
->
subframe_rx
;
...
...
@@ -605,7 +605,8 @@ uint16_t nr_rx_pbch( PHY_VARS_NR_UE *ue,
//polar decoding de-rate matching
decoderState
=
polar_decoder
(
demod_pbch_e
,
pbch_a
,
&
frame_parms
->
pbch_polar_params
,
decoderListSize
,
aPrioriArray
,
pathMetricAppr
);
decoderState
=
polar_decoder
(
demod_pbch_e
,
pbch_a
,
&
frame_parms
->
pbch_polar_params
,
decoderListSize
,
pathMetricAppr
);
//decoderState = polar_decoder_aPriori(demod_pbch_e, pbch_a, &frame_parms->pbch_polar_params, decoderListSize, aPrioriArray, pathMetricAppr);
//for (i=0; i<NR_POLAR_PBCH_PAYLOAD_BITS; i++)
// printf("pbch_a[%d] = %u \n", i,pbch_a[i]);
...
...
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment