87 lines
4.2 KiB
C
87 lines
4.2 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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#include "nrPolar_tools/nr_polar_defs.h"
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#include "nrPolar_tools/nr_polar_pbch_defs.h"
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void nr_polar_init(t_nrPolar_params* polarParams, int messageType) {
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if (messageType == 0) { //DCI
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} else if (messageType == 1) { //PBCH
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polarParams->n_max = NR_POLAR_PBCH_N_MAX;
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polarParams->i_il = NR_POLAR_PBCH_I_IL;
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polarParams->i_seg = NR_POLAR_PBCH_I_SEG;
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polarParams->n_pc = NR_POLAR_PBCH_N_PC;
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polarParams->n_pc_wm = NR_POLAR_PBCH_N_PC_WM;
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polarParams->i_bil = NR_POLAR_PBCH_I_BIL;
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polarParams->payloadBits = NR_POLAR_PBCH_PAYLOAD_BITS;
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polarParams->encoderLength = NR_POLAR_PBCH_E;
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polarParams->crcParityBits = NR_POLAR_PBCH_CRC_PARITY_BITS;
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polarParams->crcCorrectionBits = NR_POLAR_PBCH_CRC_ERROR_CORRECTION_BITS;
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polarParams->K = polarParams->payloadBits + polarParams->crcParityBits; // Number of bits to encode.
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polarParams->N = nr_polar_output_length(polarParams->K, polarParams->encoderLength, polarParams->n_max);
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polarParams->n = log2(polarParams->N);
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polarParams->crc_generator_matrix=crc24c_generator_matrix(polarParams->payloadBits);
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polarParams->G_N = nr_polar_kronecker_power_matrices(polarParams->n);
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//polar_encoder vectors:
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polarParams->nr_polar_crc = malloc(sizeof(uint8_t) * polarParams->crcParityBits);
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polarParams->nr_polar_cPrime = malloc(sizeof(uint8_t) * polarParams->K);
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polarParams->nr_polar_d = malloc(sizeof(uint8_t) * polarParams->N);
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//Polar Coding vectors
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polarParams->nr_polar_u = malloc(sizeof(uint8_t) * polarParams->N); //Decoder: nr_polar_uHat
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polarParams->nr_polar_cPrime = malloc(sizeof(uint8_t) * polarParams->K); //Decoder: nr_polar_cHat
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polarParams->nr_polar_b = malloc(sizeof(uint8_t) * polarParams->K); //Decoder: nr_polar_bHat
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} else if (messageType == 2) { //UCI
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}
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polarParams->Q_0_Nminus1 = nr_polar_sequence_pattern(polarParams->n);
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polarParams->interleaving_pattern = malloc(sizeof(uint16_t) * polarParams->K);
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nr_polar_interleaving_pattern(polarParams->K, polarParams->i_il, polarParams->interleaving_pattern);
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polarParams->rate_matching_pattern = malloc(sizeof(uint16_t) * polarParams->encoderLength);
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uint16_t *J = malloc(sizeof(uint16_t) * polarParams->N);
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nr_polar_rate_matching_pattern(polarParams->rate_matching_pattern, J,
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nr_polar_subblock_interleaver_pattern, polarParams->K, polarParams->N, polarParams->encoderLength);
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polarParams->information_bit_pattern = malloc(sizeof(uint8_t) * polarParams->N);
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polarParams->Q_I_N = malloc(sizeof(int16_t) * (polarParams->K + polarParams->n_pc));
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polarParams->Q_F_N = malloc(sizeof(int16_t) * (polarParams->N+1)); // Last element shows the final array index assigned a value.
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polarParams->Q_PC_N = malloc(sizeof(int16_t) * (polarParams->n_pc));
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for (int i=0; i<=polarParams->N; i++) polarParams->Q_F_N[i] = -1; // Empty array.
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nr_polar_info_bit_pattern(polarParams->information_bit_pattern,
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polarParams->Q_I_N, polarParams->Q_F_N, J, polarParams->Q_0_Nminus1,
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polarParams->K, polarParams->N, polarParams->encoderLength, polarParams->n_pc);
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polarParams->channel_interleaver_pattern = malloc(sizeof(uint16_t) * polarParams->encoderLength);
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nr_polar_channel_interleaver_pattern(polarParams->channel_interleaver_pattern,
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polarParams->i_bil, polarParams->encoderLength);
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free(J);
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}
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