srsLTE/lib/include/srslte/phy/common/zc_sequence.h

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/**
*
* \section COPYRIGHT
*
* Copyright 2013-2020 Software Radio Systems Limited
*
* By using this file, you agree to the terms and conditions set
* forth in the LICENSE file which can be found at the top level of
* the distribution.
*
*/
#ifndef SRSLTE_ZC_SEQUENCE_H
#define SRSLTE_ZC_SEQUENCE_H
#include "srslte/config.h"
#include <stdbool.h>
#include <stdint.h>
/**
* @brief Generates ZC sequences given the required parameters used in the TS 36 series (LTE)
*
* @remark Implemented as defined in TS 36.211 section 5.5.1 Generation of the reference signal sequence
*
* @param[in] u Group number {0,1,...29}
* @param[in] v Base sequence
* @param[in] alpha Phase shift
* @param[in] nof_prb Number of PRB
* @param[out] sequence Output sequence
* @return SRSLTE_SUCCESS if the generation is successful, SRSLTE_ERROR code otherwise
*/
SRSLTE_API int srslte_zc_sequence_generate_lte(uint32_t u, uint32_t v, float alpha, uint32_t nof_prb, cf_t* sequence);
/**
* @brief Generates ZC sequences given the required parameters used in the TS 38 series (NR)
*
* @remark Implemented as defined in TS 38.211 section 5.2.2 Low-PAPR sequence generation
* @param u Group number {0,1,...29}
* @param v base sequence
* @param alpha Phase shift
* @param m Number of PRB
* @param delta Delta parameter described in specification
* @param sequence Output sequence
* @return SRSLTE_SUCCESS if the generation is successful, SRSLTE_ERROR code otherwise
*/
SRSLTE_API int
srslte_zc_sequence_generate_nr(uint32_t u, uint32_t v, float alpha, uint32_t m, uint32_t delta, cf_t* sequence);
#endif // SRSLTE_ZC_SEQUENCE_H