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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 "PHY/CODING/nrPolar_tools/nr_polar_defs.h"
// ----- Old implementation ----
uint8_t **crc24c_generator_matrix(uint16_t payloadSizeBits){
uint8_t crcPolynomialPattern[25] = {1,1,0,1,1,0,0,1,0,1,0,1,1,0,0,0,1,0,0,0,1,0,1,1,1};
// 1011 0010 1011 0001 0001 0111 D^24 + D^23 + D^21 + D^20 + D^17 + D^15 + D^13 + D^12 + D^8 + D^4 + D^2 + D + 1
uint8_t crcPolynomialSize = 24;
uint8_t temp1[crcPolynomialSize], temp2[crcPolynomialSize];
uint8_t **crc_generator_matrix = malloc(payloadSizeBits * sizeof(uint8_t *));
if (crc_generator_matrix)
for (int i = 0; i < payloadSizeBits; i++)
crc_generator_matrix[i] = malloc(crcPolynomialSize * sizeof(uint8_t));
for (int i = 0; i < crcPolynomialSize; i++) crc_generator_matrix[payloadSizeBits-1][i]=crcPolynomialPattern[i+1];
for (int i = payloadSizeBits-2; i >= 0; i--){
for (int j = 0; j < crcPolynomialSize-1; j++) temp1[j]=crc_generator_matrix[i+1][j+1];
temp1[crcPolynomialSize-1]=0;
for (int j = 0; j < crcPolynomialSize; j++)
temp2[j]=crc_generator_matrix[i+1][0]*crcPolynomialPattern[j+1];
for (int j = 0; j < crcPolynomialSize; j++){
if(temp1[j]+temp2[j] == 1)
crc_generator_matrix[i][j]=1;
else
crc_generator_matrix[i][j]=0;
}
}
return crc_generator_matrix;
}
uint8_t **crc11_generator_matrix(uint16_t payloadSizeBits){
uint8_t crcPolynomialPattern[12] = {1,1,1,0,0,0,1,0,0,0,0,1};
// 1110 0010 0001 D^11 + D^10 + D^9 + D^5 + 1
uint8_t crcPolynomialSize = 11;
uint8_t temp1[crcPolynomialSize], temp2[crcPolynomialSize];
uint8_t **crc_generator_matrix = malloc(payloadSizeBits * sizeof(uint8_t *));
if (crc_generator_matrix)
for (int i = 0; i < payloadSizeBits; i++)
crc_generator_matrix[i] = malloc(crcPolynomialSize * sizeof(uint8_t));
for (int i = 0; i < crcPolynomialSize; i++) crc_generator_matrix[payloadSizeBits-1][i]=crcPolynomialPattern[i+1];
for (int i = payloadSizeBits-2; i >= 0; i--){
for (int j = 0; j < crcPolynomialSize-1; j++)
temp1[j]=crc_generator_matrix[i+1][j+1];
temp1[crcPolynomialSize-1]=0;
for (int j = 0; j < crcPolynomialSize; j++)
temp2[j]=crc_generator_matrix[i+1][0]*crcPolynomialPattern[j+1];
for (int j = 0; j < crcPolynomialSize; j++){
if(temp1[j]+temp2[j] == 1)
crc_generator_matrix[i][j]=1;
else
crc_generator_matrix[i][j]=0;
}
}
return crc_generator_matrix;
}
uint8_t **crc6_generator_matrix(uint16_t payloadSizeBits){
uint8_t crcPolynomialPattern[7] = {1,1,0,0,0,0,1};
// 0110 0001 D^6 + D^5 + 1
uint8_t crcPolynomialSize = 6;
uint8_t temp1[crcPolynomialSize], temp2[crcPolynomialSize];
uint8_t **crc_generator_matrix = malloc(payloadSizeBits * sizeof(uint8_t *));
if (crc_generator_matrix)
for (int i = 0; i < payloadSizeBits; i++)
crc_generator_matrix[i] = malloc(crcPolynomialSize * sizeof(uint8_t));
for (int i = 0; i < crcPolynomialSize; i++)
crc_generator_matrix[payloadSizeBits-1][i]=crcPolynomialPattern[i+1];
for (int i = payloadSizeBits-2; i >= 0; i--){
for (int j = 0; j < crcPolynomialSize-1; j++)
temp1[j]=crc_generator_matrix[i+1][j+1];
temp1[crcPolynomialSize-1]=0;
for (int j = 0; j < crcPolynomialSize; j++)
temp2[j]=crc_generator_matrix[i+1][0]*crcPolynomialPattern[j+1];
for (int j = 0; j < crcPolynomialSize; j++){
if(temp1[j]+temp2[j] == 1)
crc_generator_matrix[i][j]=1;
else
crc_generator_matrix[i][j]=0;
}
}
return crc_generator_matrix;
}