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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"
void nr_polar_init(t_nrPolar_params* polarParams, int messageType) {
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->crcCorrectionBits = NR_POLAR_PBCH_CRC_ERROR_CORRECTION_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->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
} else if (messageType == 2) { //UCI
}
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);
free(J);
}