mirror of https://github.com/PentHertz/srsLTE.git
116 lines
4.7 KiB
C
116 lines
4.7 KiB
C
/*
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* Copyright 2013-2020 Software Radio Systems Limited
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*
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* This file is part of srsLTE.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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/**********************************************************************************************
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* File: sequence.h
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*
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* Description: Pseudo Random Sequence generation. Sequences are defined by a length-31 Gold
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* sequence.
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*
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* Reference: 3GPP TS 36.211 version 10.0.0 Release 10 Sec. 7.2
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*********************************************************************************************/
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#ifndef SRSLTE_SEQUENCE_H
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#define SRSLTE_SEQUENCE_H
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#include "srslte/config.h"
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#include "srslte/phy/common/phy_common.h"
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typedef struct SRSLTE_API {
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uint32_t x1;
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uint32_t x2;
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} srslte_sequence_state_t;
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SRSLTE_API void srslte_sequence_state_init(srslte_sequence_state_t* s, uint32_t seed);
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SRSLTE_API void srslte_sequence_state_gen_f(srslte_sequence_state_t* s, float value, float* out, uint32_t length);
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SRSLTE_API void srslte_sequence_state_advance(srslte_sequence_state_t* s, uint32_t length);
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typedef struct SRSLTE_API {
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uint8_t* c;
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uint8_t* c_bytes;
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float* c_float;
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short* c_short;
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int8_t* c_char;
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uint32_t cur_len;
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uint32_t max_len;
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} srslte_sequence_t;
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SRSLTE_API int srslte_sequence_init(srslte_sequence_t* q, uint32_t len);
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SRSLTE_API void srslte_sequence_free(srslte_sequence_t* q);
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SRSLTE_API int srslte_sequence_LTE_pr(srslte_sequence_t* q, uint32_t len, uint32_t seed);
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SRSLTE_API int srslte_sequence_set_LTE_pr(srslte_sequence_t* q, uint32_t len, uint32_t seed);
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SRSLTE_API void srslte_sequence_apply_f(const float* in, float* out, uint32_t length, uint32_t seed);
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SRSLTE_API void srslte_sequence_apply_s(const int16_t* in, int16_t* out, uint32_t length, uint32_t seed);
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SRSLTE_API void srslte_sequence_apply_c(const int8_t* in, int8_t* out, uint32_t length, uint32_t seed);
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SRSLTE_API int srslte_sequence_pbch(srslte_sequence_t* seq, srslte_cp_t cp, uint32_t cell_id);
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SRSLTE_API int srslte_sequence_pcfich(srslte_sequence_t* seq, uint32_t nslot, uint32_t cell_id);
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SRSLTE_API int srslte_sequence_phich(srslte_sequence_t* seq, uint32_t nslot, uint32_t cell_id);
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SRSLTE_API int srslte_sequence_pdcch(srslte_sequence_t* seq, uint32_t nslot, uint32_t cell_id, uint32_t len);
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SRSLTE_API int
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srslte_sequence_pdsch(srslte_sequence_t* seq, uint16_t rnti, int q, uint32_t nslot, uint32_t cell_id, uint32_t len);
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SRSLTE_API int
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srslte_sequence_pusch(srslte_sequence_t* seq, uint16_t rnti, uint32_t nslot, uint32_t cell_id, uint32_t len);
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SRSLTE_API int srslte_sequence_pucch(srslte_sequence_t* seq, uint16_t rnti, uint32_t nslot, uint32_t cell_id);
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SRSLTE_API int srslte_sequence_pmch(srslte_sequence_t* seq, uint32_t nslot, uint32_t mbsfn_id, uint32_t len);
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SRSLTE_API int srslte_sequence_npbch(srslte_sequence_t* seq, srslte_cp_t cp, uint32_t cell_id);
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SRSLTE_API int srslte_sequence_npbch_r14(srslte_sequence_t* seq, uint32_t n_id_ncell, uint32_t nf);
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SRSLTE_API int srslte_sequence_npdsch(srslte_sequence_t* seq,
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uint16_t rnti,
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int q,
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uint32_t nf,
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uint32_t nslot,
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uint32_t cell_id,
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uint32_t len);
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SRSLTE_API int srslte_sequence_npdsch_bcch_r14(srslte_sequence_t* seq, uint32_t nf, uint32_t n_id_ncell, uint32_t len);
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SRSLTE_API int srslte_sequence_npdcch(srslte_sequence_t* seq, uint32_t nslot, uint32_t cell_id, uint32_t len);
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SRSLTE_API int srslte_sequence_npusch(srslte_sequence_t* seq,
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uint16_t rnti,
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uint32_t nf,
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uint32_t nslot,
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uint32_t cell_id,
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uint32_t len);
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SRSLTE_API int srslte_sequence_nprach(srslte_sequence_t* seq, uint32_t cell_id);
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#endif // SRSLTE_SEQUENCE_H
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