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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
*/
/*!\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"
#include "PHY/CODING/nrPolar_tools/nr_polar_pbch_defs.h"
#include "PHY/NR_TRANSPORT/nr_dci.h"
void nr_polar_init(t_nrPolar_paramsPtr *polarParams,
int8_t messageType,
uint16_t messageLength,
uint8_t aggregation_level)
{
t_nrPolar_paramsPtr currentPtr = *polarParams;
//Parse the list. If the node is already created, return without initialization.
while (currentPtr != NULL) {
if (currentPtr->idx == (messageType * messageLength)) return;
else currentPtr = currentPtr->nextPtr;
}
//Else, initialize and add node to the end of the linked list.
t_nrPolar_paramsPtr newPolarInitNode = malloc(sizeof(t_nrPolar_params));
if (newPolarInitNode != NULL) {
newPolarInitNode->idx = (messageType * messageLength);
newPolarInitNode->nextPtr = NULL;
if (messageType == 0) { //PBCH
newPolarInitNode->n_max = NR_POLAR_PBCH_N_MAX;
newPolarInitNode->i_il = NR_POLAR_PBCH_I_IL;
newPolarInitNode->i_seg = NR_POLAR_PBCH_I_SEG;
newPolarInitNode->n_pc = NR_POLAR_PBCH_N_PC;
newPolarInitNode->n_pc_wm = NR_POLAR_PBCH_N_PC_WM;
newPolarInitNode->i_bil = NR_POLAR_PBCH_I_BIL;
newPolarInitNode->crcParityBits = NR_POLAR_PBCH_CRC_PARITY_BITS;
newPolarInitNode->payloadBits = NR_POLAR_PBCH_PAYLOAD_BITS;
newPolarInitNode->encoderLength = NR_POLAR_PBCH_E;
newPolarInitNode->crcCorrectionBits = NR_POLAR_PBCH_CRC_ERROR_CORRECTION_BITS;
} else if (messageType == 1) { //DCI
newPolarInitNode->n_max = NR_POLAR_DCI_N_MAX;
newPolarInitNode->i_il = NR_POLAR_DCI_I_IL;
newPolarInitNode->i_seg = NR_POLAR_DCI_I_SEG;
newPolarInitNode->n_pc = NR_POLAR_DCI_N_PC;
newPolarInitNode->n_pc_wm = NR_POLAR_DCI_N_PC_WM;
newPolarInitNode->i_bil = NR_POLAR_DCI_I_BIL;
newPolarInitNode->crcParityBits = NR_POLAR_DCI_CRC_PARITY_BITS;
newPolarInitNode->payloadBits = messageLength;
newPolarInitNode->encoderLength = aggregation_level*108;
newPolarInitNode->crcCorrectionBits = NR_POLAR_DCI_CRC_ERROR_CORRECTION_BITS;
} else if (messageType == -1) { //UCI
} else {
AssertFatal(1 == 0, "[nr_polar_init] Incorrect Message Type(%d)", messageType);
}
newPolarInitNode->K = newPolarInitNode->payloadBits + newPolarInitNode->crcParityBits; // Number of bits to encode.
newPolarInitNode->N = nr_polar_output_length(newPolarInitNode->K, newPolarInitNode->encoderLength, newPolarInitNode->n_max);
newPolarInitNode->n = log2(newPolarInitNode->N);
newPolarInitNode->crc_generator_matrix = crc24c_generator_matrix(newPolarInitNode->payloadBits);
newPolarInitNode->G_N = nr_polar_kronecker_power_matrices(newPolarInitNode->n);
//polar_encoder vectors:
newPolarInitNode->nr_polar_crc = malloc(sizeof(uint8_t) * newPolarInitNode->crcParityBits);
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);
newPolarInitNode->interleaving_pattern = malloc(sizeof(uint16_t) * newPolarInitNode->K);
nr_polar_interleaving_pattern(newPolarInitNode->K,
newPolarInitNode->i_il,
newPolarInitNode->interleaving_pattern);
newPolarInitNode->rate_matching_pattern = malloc(sizeof(uint16_t) * newPolarInitNode->encoderLength);
uint16_t *J = malloc(sizeof(uint16_t) * newPolarInitNode->N);
nr_polar_rate_matching_pattern(newPolarInitNode->rate_matching_pattern,
J,
nr_polar_subblock_interleaver_pattern,
newPolarInitNode->K,
newPolarInitNode->N,
newPolarInitNode->encoderLength);
newPolarInitNode->information_bit_pattern = malloc(sizeof(uint8_t) * newPolarInitNode->N);
newPolarInitNode->Q_I_N = malloc(sizeof(int16_t) * (newPolarInitNode->K + newPolarInitNode->n_pc));
newPolarInitNode->Q_F_N = malloc( sizeof(int16_t) * (newPolarInitNode->N + 1)); // Last element shows the final array index assigned a value.
newPolarInitNode->Q_PC_N = malloc( sizeof(int16_t) * (newPolarInitNode->n_pc));
for (int i = 0; i <= newPolarInitNode->N; i++)
newPolarInitNode->Q_F_N[i] = -1; // Empty array.
nr_polar_info_bit_pattern(newPolarInitNode->information_bit_pattern,
newPolarInitNode->Q_I_N,
newPolarInitNode->Q_F_N,
J,
newPolarInitNode->Q_0_Nminus1,
newPolarInitNode->K,
newPolarInitNode->N,
newPolarInitNode->encoderLength,
newPolarInitNode->n_pc);
newPolarInitNode->channel_interleaver_pattern = malloc(sizeof(uint16_t) * newPolarInitNode->encoderLength);
nr_polar_channel_interleaver_pattern(newPolarInitNode->channel_interleaver_pattern,
newPolarInitNode->i_bil,
newPolarInitNode->encoderLength);
free(J);
} else {
AssertFatal(1 == 0, "[nr_polar_init] New t_nrPolar_paramsPtr could not be created");
}
currentPtr = *polarParams;
//If polarParams is empty:
if (currentPtr == NULL)
{
*polarParams = newPolarInitNode;
return;
}
//Else, add node to the end of the linked list.
while (currentPtr->nextPtr != NULL) {
currentPtr = currentPtr->nextPtr;
}
currentPtr->nextPtr= newPolarInitNode;
return;
}
void nr_polar_print_polarParams(t_nrPolar_paramsPtr polarParams)
{
uint8_t i = 0;
if (polarParams == NULL) {
printf("polarParams is empty.\n");
} else {
while (polarParams != NULL){
printf("polarParams[%d] = %d\n", i, polarParams->idx);
polarParams = polarParams->nextPtr;
i++;
}
}
return;
}
t_nrPolar_paramsPtr nr_polar_params (t_nrPolar_paramsPtr polarParams,
int8_t messageType,
uint16_t messageLength)
{
t_nrPolar_paramsPtr currentPtr = NULL;
while (polarParams != NULL) {
if (polarParams->idx == (messageType * messageLength)) {
currentPtr = polarParams;
break;
} else {
polarParams = polarParams->nextPtr;
}
}
return currentPtr;
}