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openairinterface5G
Commit 6a2dc297 authored by knopp's avatar knopp
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compilation of nr-uesoftmodem fixed (polar_decoder parameter list)

parent 9d9aadd4
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Showing with 25 additions and 111 deletions
openair1/PHY/CODING/TESTBENCH/polartest.c
View file @ 6a2dc297
......@@ -191,15 +191,9 @@ int main(int argc, char *argv[]) {
start_meas(&timeDecoder);
if (decoder_int8==0)
decoderState = polar_decoder(channelOutput, estimatedOutput, &nrPolar_params,
decoderListSize, aPrioriArray, pathMetricAppr,
&polar_decoder_init,&polar_rate_matching,&decoding,
&bit_extraction,&deinterleaving,&sorting,&path_metric,&update_LLR);
decoderListSize, aPrioriArray, pathMetricAppr);
else
decoderState = polar_decoder_int8_new(channelOutput_int8, estimatedOutput, &nrPolar_params,
decoderListSize, &polar_decoder_init,&polar_rate_matching,
&decoding,&bit_extraction,&deinterleaving,
&sorting,&path_metric,&update_LLR,
generate_optim_code);
decoderState = polar_decoder_int8_new(channelOutput_int8, estimatedOutput, &nrPolar_params);
stop_meas(&timeDecoder);
//calculate errors
......@@ -237,15 +231,7 @@ int main(int argc, char *argv[]) {
decoderListSize, pathMetricAppr, SNR, ((double)blockErrorCumulative/iterations),
((double)bitErrorCumulative / (iterations*testLength)),
(timeEncoderCumulative/iterations),timeDecoderCumulative/iterations);
printf("decoding init %9.3fus\n",polar_decoder_init.diff/(cpu_freq_GHz*1000.0*polar_decoder_init.trials));
printf("decoding polar_rate_matching %9.3fus\n",polar_rate_matching.diff/(cpu_freq_GHz*1000.0*polar_rate_matching.trials));
printf("decoding decoding %9.3fus\n",decoding.diff/(cpu_freq_GHz*1000.0*decoding.trials));
printf("decoding bit_extraction %9.3fus\n",bit_extraction.diff/(cpu_freq_GHz*1000.0*bit_extraction.trials));
printf("decoding deinterleaving %9.3fus\n",deinterleaving.diff/(cpu_freq_GHz*1000.0*deinterleaving.trials));
printf("decoding path_metric %9.3fus\n",path_metric.diff/(cpu_freq_GHz*1000.0*decoding.trials));
printf("decoding sorting %9.3fus\n",sorting.diff/(cpu_freq_GHz*1000.0*decoding.trials));
printf("decoding updateLLR %9.3fus\n",update_LLR.diff/(cpu_freq_GHz*1000.0*decoding.trials));
blockErrorCumulative = 0; bitErrorCumulative = 0;
timeEncoderCumulative = 0; timeDecoderCumulative = 0;
}
......
openair1/PHY/CODING/nrPolar_tools/nr_polar_decoder.c
View file @ 6a2dc297
......@@ -27,7 +27,6 @@
#include "PHY/CODING/nrPolar_tools/nr_polar_defs.h"
#include "PHY/CODING/nrPolar_tools/nr_polar_pbch_defs.h"
#include "PHY/TOOLS/time_meas.h"
int8_t polar_decoder(
......@@ -36,19 +35,7 @@ int8_t polar_decoder(
t_nrPolar_params *polarParams,
uint8_t listSize,
double *aPrioriPayload,
uint8_t pathMetricAppr,
time_stats_t *init,
time_stats_t *polar_rate_matching,
time_stats_t *decoding,
time_stats_t *bit_extraction,
time_stats_t *deinterleaving,
time_stats_t *sorting,
time_stats_t *path_metric,
time_stats_t *update_LLR)
{
start_meas(init);
uint8_t pathMetricAppr) {
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++){
......@@ -102,18 +89,14 @@ int8_t polar_decoder(
}
stop_meas(init);
start_meas(polar_rate_matching);
double d_tilde[polarParams->N];// = malloc(sizeof(double) * polarParams->N);
nr_polar_rate_matching(input, d_tilde, polarParams->rate_matching_pattern, polarParams->K, polarParams->N, polarParams->encoderLength);
memcpy((void*)&dlist[0].llr[polarParams->n][0],(void*)&d_tilde[0],sizeof(double)*polarParams->N);
stop_meas(polar_rate_matching);
/*
* SCL polar decoder.
*/
start_meas(decoding);
uint32_t nonFrozenBit=0;
uint8_t currentListSize=1;
......@@ -128,9 +111,7 @@ int8_t polar_decoder(
// printf("***************** BIT %d (currentListSize %d, information_bit_pattern %d)\n",
// currentBit,currentListSize,polarParams->information_bit_pattern[currentBit]);
start_meas(update_LLR);
updateLLR(sorted_dlist, llrUpdated, bitUpdated, currentListSize, currentBit, 0, polarParams->N, (polarParams->n+1), pathMetricAppr);
stop_meas(update_LLR);
if (polarParams->information_bit_pattern[currentBit]==0) { //Frozen bit.
updatePathMetric(sorted_dlist,currentListSize, 0, currentBit, pathMetricAppr); //approximation=0 --> 11b, approximation=1 --> 12
......@@ -148,11 +129,9 @@ int8_t polar_decoder(
updateCrcChecksum(sorted_dlist, extended_crc_generator_matrix, currentListSize, nonFrozenBit, polarParams->crcParityBits);
} else {
start_meas(path_metric);
updatePathMetric2(sorted_dlist, currentListSize, currentBit, pathMetricAppr);
stop_meas(path_metric);
start_meas(sorting);
if (currentListSize <= listSize/2) {
......@@ -243,7 +222,6 @@ int8_t polar_decoder(
sorted_dlist[i] = temp_dlist[listIndex[i]];
}
}
stop_meas(sorting);
}
nonFrozenBit++;
......@@ -260,14 +238,10 @@ int8_t polar_decoder(
if (crcState == 1) {
for (int j = 0; j < polarParams->N; j++) polarParams->nr_polar_u[j]=sorted_dlist[i]->bit[0][j];
start_meas(bit_extraction);
//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);
stop_meas(bit_extraction);
//Deinterleaving (ĉ to b)
start_meas(deinterleaving);
nr_polar_deinterleaver(polarParams->nr_polar_cPrime, polarParams->nr_polar_b, polarParams->interleaving_pattern, polarParams->K);
stop_meas(deinterleaving);
//Remove the CRC (â)
for (int j = 0; j < polarParams->payloadBits; j++) output[j]=polarParams->nr_polar_b[j];
......@@ -285,7 +259,7 @@ int8_t polar_decoder(
}*/
nr_free_uint8_t_2D_array(extended_crc_generator_matrix, polarParams->K);
nr_free_uint8_t_2D_array(tempECGM, polarParams->K);
stop_meas(decoding);
return(0);
}
......@@ -296,15 +270,8 @@ int8_t polar_decoder_int8(int16_t *input,
uint8_t *output,
t_nrPolar_params *polarParams,
uint8_t listSize,
time_stats_t *init,
time_stats_t *polar_rate_matching,
time_stats_t *decoding,
time_stats_t *bit_extraction,
time_stats_t *deinterleaving,
time_stats_t *sorting,
time_stats_t *path_metric,
time_stats_t *update_LLR,
int generate_optim_code)
{
......@@ -318,7 +285,6 @@ int8_t polar_decoder_int8(int16_t *input,
decoder_list_int8_t dlist[2*listSize];
start_meas(init);
for ( int i=0;i<2*listSize;i++) {
// dlist[i].bit = nr_alloc_uint8_t_2D_array((polarParams->n+1), polarParams->N);
......@@ -332,7 +298,6 @@ int8_t polar_decoder_int8(int16_t *input,
dlist[i].pathMetric = 0;
}
stop_meas(init);
if (generate_optim_code == 1 || polarParams->decoder_kernel==NULL) {
for (int i=0; i<polarParams->N; i++) {
......@@ -345,7 +310,6 @@ int8_t polar_decoder_int8(int16_t *input,
start_meas(polar_rate_matching);
int16_t d_tilde[polarParams->N];// = malloc(sizeof(double) * polarParams->N);
nr_polar_rate_matching_int8(input, d_tilde, polarParams->rate_matching_pattern, polarParams->K, polarParams->N, polarParams->encoderLength);
......@@ -354,12 +318,11 @@ int8_t polar_decoder_int8(int16_t *input,
else if (d_tilde[i]>127) d_tilde[i]=128;
}
memcpy((void*)&dlist[0].llr[polarParams->n][0],(void*)&d_tilde[0],sizeof(int16_t)*polarParams->N);
stop_meas(polar_rate_matching);
/*
* SCL polar decoder.
*/
start_meas(decoding);
uint32_t nonFrozenBit=0;
uint8_t currentListSize=1;
......@@ -383,18 +346,16 @@ int8_t polar_decoder_int8(int16_t *input,
printf("***************** BIT %d (currentListSize %d, information_bit_pattern %d)\n",
currentBit,currentListSize,polarParams->information_bit_pattern[currentBit]);
start_meas(update_LLR);
updateLLR_int8(sorted_dlist, llrUpdated, bitUpdated, currentListSize, currentBit, 0, polarParams->N, (polarParams->n+1),generate_optim_code,fd);
stop_meas(update_LLR);
if (polarParams->information_bit_pattern[currentBit]==0) { //Frozen bit.
updatePathMetric0_int8(sorted_dlist,currentListSize, currentBit,generate_optim_code,fd); //approximation=0 --> 11b, approximation=1 --> 12
} else { //Information or CRC bit.
start_meas(path_metric);
updatePathMetric2_int8(sorted_dlist, currentListSize, currentBit,generate_optim_code,fd);
stop_meas(path_metric);
start_meas(sorting);
if (currentListSize <= listSize/2) {
// until listsize is full we need to copy bit and LLR arrays to new entries
......@@ -426,7 +387,6 @@ int8_t polar_decoder_int8(int16_t *input,
currentListSize = listSize;
}
stop_meas(sorting);
nonFrozenBit++;
}
......@@ -446,14 +406,11 @@ int8_t polar_decoder_int8(int16_t *input,
if (crcState == 1) {
for (int j = 0; j < polarParams->N; j++) polarParams->nr_polar_u[j]=sorted_dlist[i]->bit[0][j];
start_meas(bit_extraction);
//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);
stop_meas(bit_extraction);
//Deinterleaving (ĉ to b)
start_meas(deinterleaving);
nr_polar_deinterleaver(polarParams->nr_polar_cPrime, polarParams->nr_polar_b, polarParams->interleaving_pattern, polarParams->K);
stop_meas(deinterleaving);
//Remove the CRC (â)
for (int j = 0; j < polarParams->payloadBits; j++) output[j]=polarParams->nr_polar_b[j];
......@@ -469,31 +426,16 @@ int8_t polar_decoder_int8(int16_t *input,
nr_free_double_2D_array(dlist[i].llr, (polarParams->n+1));
free(dlist[i].crcChecksum);
}*/
stop_meas(decoding);
return(0);
}
int8_t polar_decoder_int8_new(int16_t *input,
uint8_t *output,
t_nrPolar_params *polarParams,
uint8_t listSize,
time_stats_t *init,
time_stats_t *polar_rate_matching,
time_stats_t *decoding,
time_stats_t *bit_extraction,
time_stats_t *deinterleaving,
time_stats_t *sorting,
time_stats_t *path_metric,
time_stats_t *update_LLR,
int generate_optim_code)
t_nrPolar_params *polarParams)
{
start_meas(init);
stop_meas(init);
start_meas(polar_rate_matching);
int16_t d_tilde[polarParams->N];// = malloc(sizeof(double) * polarParams->N);
nr_polar_rate_matching_int8(input, d_tilde, polarParams->rate_matching_pattern, polarParams->K, polarParams->N, polarParams->encoderLength);
......@@ -502,23 +444,22 @@ int8_t polar_decoder_int8_new(int16_t *input,
else if (d_tilde[i]>127) d_tilde[i]=128;
}
memcpy((void*)&polarParams->tree.root->alpha[0],(void*)&d_tilde[0],sizeof(int16_t)*polarParams->N);
stop_meas(polar_rate_matching);
/*
* SCL polar decoder.
*/
start_meas(decoding);
generic_polar_decoder(polarParams,polarParams->tree.root);
start_meas(bit_extraction);
//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);
stop_meas(bit_extraction);
//Deinterleaving (ĉ to b)
start_meas(deinterleaving);
nr_polar_deinterleaver(polarParams->nr_polar_cPrime, polarParams->nr_polar_b, polarParams->interleaving_pattern, polarParams->K);
stop_meas(deinterleaving);
//Remove the CRC (â)
for (int j = 0; j < polarParams->payloadBits; j++) output[j]=polarParams->nr_polar_b[j];
......@@ -532,6 +473,6 @@ int8_t polar_decoder_int8_new(int16_t *input,
nr_free_double_2D_array(dlist[i].llr, (polarParams->n+1));
free(dlist[i].crcChecksum);
}*/
stop_meas(decoding);
return(0);
}
openair1/PHY/CODING/nrPolar_tools/nr_polar_defs.h
View file @ 6a2dc297
......@@ -30,7 +30,6 @@
#include <stdlib.h>
#include <string.h>
#include "PHY/TOOLS/time_meas.h"
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 };
......@@ -126,30 +125,18 @@ void polar_encoder(uint8_t *input, uint8_t *output, t_nrPolar_params* polarParam
void nr_polar_kernal_operation(uint8_t *u, uint8_t *d, uint16_t N);
int8_t polar_decoder(double *input, uint8_t *output, t_nrPolar_params *polarParams,
uint8_t listSize, double *aPrioriPayload, uint8_t pathMetricAppr,
time_stats_t *init,
time_stats_t *polar_rate_matching,
time_stats_t *decoding,
time_stats_t *bit_extraction,
time_stats_t *deinterleaving,
time_stats_t *sorting,
time_stats_t *path_metric,
time_stats_t *update_LLR);
uint8_t listSize, double *aPrioriPayload, uint8_t pathMetricAppr);
int8_t polar_decoder_int8(int16_t *input,
uint8_t *output,
t_nrPolar_params *polarParams,
uint8_t listSize,
time_stats_t *init,
time_stats_t *polar_rate_matching,
time_stats_t *decoding,
time_stats_t *bit_extraction,
time_stats_t *deinterleaving,
time_stats_t *sorting,
time_stats_t *path_metric,
time_stats_t *update_LLR,
int generate_optim_code);
int8_t polar_decoder_int8_new(int16_t *input,
uint8_t *output,
t_nrPolar_params *polarParams);
void nr_polar_llrtableinit(void);
......
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