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https://gitlab.eurecom.fr/oai/openairinterface5g.git
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83 lines
2.9 KiB
C
83 lines
2.9 KiB
C
/*
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* SPDX-License-Identifier: LicenseRef-CSSL-1.0
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*/
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/**********************************************************************
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*
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* FILENAME : pss_nr.h
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*
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* MODULE : primary synchronisation signal
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*
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* DESCRIPTION : elements related to pss
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*
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************************************************************************/
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#ifndef PSS_NR_H
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#define PSS_NR_H
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#include "PHY/defs_nr_common.h"
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#include "PHY/NR_REFSIG/ss_pbch_nr.h"
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/************** CODE GENERATION ***********************************/
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//#define PSS_DECIMATOR /* decimation of sample is done between time correlation */
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//#define CIC_DECIMATOR /* it allows enabling decimation based on CIC filter. By default, decimation is based on a FIF filter */
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#define TEST_SYNCHRO_TIMING_PSS (1) /* enable time profiling */
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//#define DBG_PSS_NR
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/************** DEFINE ********************************************/
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/* PROFILING */
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#define TIME_PSS (0)
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#define TIME_RATE_CHANGE (TIME_PSS+1)
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#define TIME_SSS (TIME_RATE_CHANGE+1)
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#define TIME_LAST (TIME_SSS+1)
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/* PSS configuration */
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#define SYNCHRO_FFT_SIZE_MAX (8192) /* maximum size of fft for synchronisation */
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#define NO_RATE_CHANGE (1)
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#ifdef PSS_DECIMATOR
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#define RATE_CHANGE (SYNCHRO_FFT_SIZE_MAX/SYNCHRO_FFT_SIZE_PSS)
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#define SYNCHRO_FFT_SIZE_PSS (256)
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#define OFDM_SYMBOL_SIZE_PSS (SYNCHRO_FFT_SIZE_PSS)
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#define SYNCHRO_RATE_CHANGE_FACTOR (SYNCHRO_FFT_SIZE_MAX/SYNCHRO_FFT_SIZE_PSS)
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#define CIC_FILTER_STAGE_NUMBER (4)
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#else
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#define RATE_CHANGE (1)
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#define SYNCHRO_RATE_CHANGE_FACTOR (1)
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#endif
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int pss_synchro_nr(const c16_t **rxdata,
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const NR_DL_FRAME_PARMS *frame_parms,
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const c16_t pssTime[NUMBER_PSS_SEQUENCE][frame_parms->ofdm_symbol_size],
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int is,
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bool fo_flag,
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int target_Nid_cell,
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int *nid2,
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int *f_off,
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int *pssPeak,
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int *pssAvg);
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int pss_search_time_nr(const c16_t **rxdata,
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const NR_DL_FRAME_PARMS *frame_parms,
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const c16_t pssTime[NUMBER_PSS_SEQUENCE][frame_parms->ofdm_symbol_size],
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bool fo_flag,
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int is,
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int target_Nid_cell,
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int *nid2,
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int *f_off,
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int *pssPeak,
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int *pssAvg,
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int search_start,
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int search_length);
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void generate_pss_nr_time(const NR_DL_FRAME_PARMS *fp, const int N_ID_2, int ssbFirstSCS, c16_t pssTime[fp->ofdm_symbol_size]);
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void generate_pss_nr(const int N_ID_2, int16_t *pss);
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#endif /* PSS_NR_H */
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