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Commit 89936be2 authored by Florian Kaltenberger's avatar Florian Kaltenberger
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removing unused duplicate file

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openair1/PHY/CODING/nrPolar_init.c deleted 100644 → 0
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/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
#include "nrPolar_tools/nr_polar_defs.h"
#include "nrPolar_tools/nr_polar_pbch_defs.h"
#include "nrPolar_tools/nr_polar_uci_defs.h"
void nr_polar_init(t_nrPolar_params* polarParams, int messageType) {
uint32_t poly6 = 0x84000000; // 1000100000... -> D^6+D^5+1
uint32_t poly11 = 0x63200000; //11000100001000... -> D^11+D^10+D^9+D^5+1
//uint32_t poly16 = 0x81080000; //100000010000100... - > D^16+D^12+D^5+1
//uint32_t poly24a = 0x864cfb00; //100001100100110011111011 -> D^24+D^23+D^18+D^17+D^14+D^11+D^10+D^7+D^6+D^5+D^4+D^3+D+1
//uint32_t poly24b = 0x80006300; //100000000000000001100011 -> D^24+D^23+D^6+D^5+D+1
uint32_t poly24c = 0xB2B11700; //101100101011000100010111 -> D^24...
if (messageType == 0) { //DCI
} else if (messageType == 1) { //PBCH
polarParams->n_max = NR_POLAR_PBCH_N_MAX;
polarParams->i_il = NR_POLAR_PBCH_I_IL;
polarParams->i_seg = NR_POLAR_PBCH_I_SEG;
polarParams->n_pc = NR_POLAR_PBCH_N_PC;
polarParams->n_pc_wm = NR_POLAR_PBCH_N_PC_WM;
polarParams->i_bil = NR_POLAR_PBCH_I_BIL;
polarParams->payloadBits = NR_POLAR_PBCH_PAYLOAD_BITS;
polarParams->encoderLength = NR_POLAR_PBCH_E;
polarParams->crcParityBits = NR_POLAR_PBCH_CRC_PARITY_BITS;
polarParams->K = polarParams->payloadBits + polarParams->crcParityBits; // Number of bits to encode.
polarParams->N = nr_polar_output_length(polarParams->K, polarParams->encoderLength, polarParams->n_max);
polarParams->n = log2(polarParams->N);
polarParams->crc_generator_matrix=crc24c_generator_matrix(polarParams->payloadBits);
polarParams->crc_polynomial = poly24c;
polarParams->G_N = nr_polar_kronecker_power_matrices(polarParams->n);
//polar_encoder vectors:
polarParams->nr_polar_crc = malloc(sizeof(uint8_t) * polarParams->crcParityBits);
polarParams->nr_polar_cPrime = malloc(sizeof(uint8_t) * polarParams->K);
polarParams->nr_polar_d = malloc(sizeof(uint8_t) * polarParams->N);
//Polar Coding vectors
polarParams->nr_polar_u = malloc(sizeof(uint8_t) * polarParams->N); //Decoder: nr_polar_uHat
polarParams->nr_polar_cPrime = malloc(sizeof(uint8_t) * polarParams->K); //Decoder: nr_polar_cHat
polarParams->nr_polar_b = malloc(sizeof(uint8_t) * polarParams->K); //Decoder: nr_polar_bHat
polarParams->decoder_kernel = NULL;//polar_decoder_K56_N512_E864;
} else if (messageType == 2) { //UCI
polarParams->payloadBits = NR_POLAR_PUCCH_PAYLOAD_BITS; //A depends on what they carry...
polarParams->encoderLength = NR_POLAR_PUCCH_E ; //E depends on other standards 6.3.1.4
if (polarParams->payloadBits <= 11) //Ref. 38-212, Section 6.3.1.2.2
polarParams->crcParityBits = 0; //K=A
else //Ref. 38-212, Section 6.3.1.2.1
{
if (polarParams->payloadBits < 20)
polarParams->crcParityBits = NR_POLAR_PUCCH_CRC_PARITY_BITS_SHORT;
else
polarParams->crcParityBits = NR_POLAR_PUCCH_CRC_PARITY_BITS_LONG;
if (polarParams->payloadBits >= 360 && polarParams->encoderLength >= 1088)
polarParams->i_seg = NR_POLAR_PUCCH_I_SEG_LONG; // -> C=2
else
polarParams->i_seg = NR_POLAR_PUCCH_I_SEG_SHORT; // -> C=1
}
polarParams->K = polarParams->payloadBits + polarParams->crcParityBits; // Number of bits to encode.
//K_r = K/C ; C = I_seg+1
if((polarParams->K)/(polarParams->i_seg+1)>=18 && (polarParams->K)/(polarParams->i_seg+1)<=25) //Ref. 38-212, Section 6.3.1.3.1
{
polarParams->n_max = NR_POLAR_PUCCH_N_MAX;
polarParams->i_il =NR_POLAR_PUCCH_I_IL;
polarParams->n_pc = NR_POLAR_PUCCH_N_PC_SHORT;
if( (polarParams->encoderLength - polarParams->K)/(polarParams->i_seg + 1) + 3 > 192 )
polarParams->n_pc_wm = NR_POLAR_PUCCH_N_PC_WM_LONG;
else
polarParams->n_pc_wm = NR_POLAR_PUCCH_N_PC_WM_SHORT;
}
if( (polarParams->K)/(polarParams->i_seg + 1) > 30 ) //Ref. 38-212, Section 6.3.1.3.1
{
polarParams->n_max = NR_POLAR_PUCCH_N_MAX;
polarParams->i_il =NR_POLAR_PUCCH_I_IL;
polarParams->n_pc = NR_POLAR_PUCCH_N_PC_LONG;
polarParams->n_pc_wm = NR_POLAR_PUCCH_N_PC_WM_LONG;
}
polarParams->i_bil = NR_POLAR_PUCCH_I_BIL; //Ref. 38-212, Section 6.3.1.4.1
polarParams->N = nr_polar_output_length(polarParams->K, polarParams->encoderLength, polarParams->n_max);
polarParams->n = log2(polarParams->N);
if((polarParams->payloadBits) <= 19)
{
polarParams->crc_generator_matrix=crc6_generator_matrix(polarParams->payloadBits);
polarParams->crc_polynomial = poly6;
}
else
{
polarParams->crc_generator_matrix=crc11_generator_matrix(polarParams->payloadBits);
polarParams->crc_polynomial = poly11;
}
polarParams->G_N = nr_polar_kronecker_power_matrices(polarParams->n);
//polar_encoder vectors:
polarParams->nr_polar_crc = malloc(sizeof(uint8_t) * polarParams->crcParityBits);
polarParams->nr_polar_cPrime = malloc(sizeof(uint8_t) * polarParams->K);
polarParams->nr_polar_d = malloc(sizeof(uint8_t) * polarParams->N);
//Polar Coding vectors
polarParams->nr_polar_u = malloc(sizeof(uint8_t) * polarParams->N); //Decoder: nr_polar_uHat
polarParams->nr_polar_cPrime = malloc(sizeof(uint8_t) * polarParams->K); //Decoder: nr_polar_cHat
polarParams->nr_polar_b = malloc(sizeof(uint8_t) * polarParams->K); //Decoder: nr_polar_bHat
}
polarParams->crcCorrectionBits = NR_POLAR_CRC_ERROR_CORRECTION_BITS;
polarParams->crc256Table = malloc(sizeof(uint32_t)*256);
crcTable256Init(polarParams->crc_polynomial, polarParams->crc256Table);
polarParams->Q_0_Nminus1 = nr_polar_sequence_pattern(polarParams->n);
polarParams->interleaving_pattern = malloc(sizeof(uint16_t) * polarParams->K);
nr_polar_interleaving_pattern(polarParams->K, polarParams->i_il, polarParams->interleaving_pattern);
polarParams->rate_matching_pattern = malloc(sizeof(uint16_t) * polarParams->encoderLength);
uint16_t *J = malloc(sizeof(uint16_t) * polarParams->N);
nr_polar_rate_matching_pattern(polarParams->rate_matching_pattern, J,
nr_polar_subblock_interleaver_pattern, polarParams->K, polarParams->N, polarParams->encoderLength);
polarParams->information_bit_pattern = malloc(sizeof(uint8_t) * polarParams->N);
polarParams->Q_I_N = malloc(sizeof(int16_t) * (polarParams->K + polarParams->n_pc));
polarParams->Q_F_N = malloc(sizeof(int16_t) * (polarParams->N+1)); // Last element shows the final array index assigned a value.
polarParams->Q_PC_N = malloc(sizeof(int16_t) * (polarParams->n_pc));
for (int i=0; i<=polarParams->N; i++) polarParams->Q_F_N[i] = -1; // Empty array.
nr_polar_info_bit_pattern(polarParams->information_bit_pattern,
polarParams->Q_I_N, polarParams->Q_F_N, J, polarParams->Q_0_Nminus1,
polarParams->K, polarParams->N, polarParams->encoderLength, polarParams->n_pc);
polarParams->channel_interleaver_pattern = malloc(sizeof(uint16_t) * polarParams->encoderLength);
nr_polar_channel_interleaver_pattern(polarParams->channel_interleaver_pattern,
polarParams->i_bil, polarParams->encoderLength);
polarParams->extended_crc_generator_matrix = malloc(polarParams->K * sizeof(uint8_t *)); //G_P3
uint8_t tempECGM[polarParams->K][polarParams->crcParityBits];
for (int i = 0; i < polarParams->K; i++){
polarParams->extended_crc_generator_matrix[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++) {
polarParams->extended_crc_generator_matrix[i][j]=tempECGM[polarParams->interleaving_pattern[i]][j];
}
}
build_decoder_tree(polarParams);
printf("decoder tree nodes %d\n",polarParams->tree.num_nodes);
free(J);
}
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