Robert Schmidt
1aed7b5802
Pass pointer to data. This necessitates to move delay from NR_gNB_ULSCH_t (ULSCH data, including transport channels etc) to NR_gNB_PUSCH (lower-PHY PUSCH data): 1. This allows to pass a single pointer to nr_pusch_channel_estimation() 2. To me, delay estimation seems to be a lower-PHY calculation, so it fits better anyway. Signed-off-by: Robert Schmidt <robert.schmidt@openairinterface.org>
111 lines
5.1 KiB
C
111 lines
5.1 KiB
C
/*
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* SPDX-License-Identifier: LicenseRef-CSSL-1.0
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*/
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#ifndef __NR_UL_ESTIMATION_DEFS__H__
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#define __NR_UL_ESTIMATION_DEFS__H__
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#include "PHY/defs_gNB.h"
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/** @addtogroup _PHY_PARAMETER_ESTIMATION_BLOCKS_
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* @{
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*/
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/*!
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\brief This function performs channel estimation including frequency interpolation
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\param gNB Pointer to gNB PHY variables
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\param Ns slot number (0..19)
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\param p
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\param symbol symbol within slot
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\param pusch_vars lower-phy PUSCH info
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\param bwp_start_subcarrier first allocated subcarrier
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\param pusch_pdu
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\param max_ch maximum value of estimated channel
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\param nvar
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*/
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int nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
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unsigned char Ns,
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int nl,
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unsigned short p,
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unsigned char symbol,
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NR_gNB_PUSCH *pusch_vars,
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int beam_nb,
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unsigned short bwp_start_subcarrier,
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nfapi_nr_pusch_pdu_t *pusch_pdu,
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int *max_ch,
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uint32_t *nvar,
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c16_t *pusch_dmrs_slot_mem,
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c16_t *pusch_ch_est_dmrs_pos_slot_mem);
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void dump_nr_I0_stats(FILE *fd,PHY_VARS_gNB *gNB);
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void gNB_I0_measurements(PHY_VARS_gNB *gNB, int slot, int first_symb, int num_symb, uint32_t rb_mask_ul[14][9]);
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void nr_est_srs_timing_advance_offset(uint16_t ofdm_symbol_size,
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const c16_t srs_estimated_channel_time[][NR_SRS_IDFT_OVERSAMP_FACTOR * ofdm_symbol_size],
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uint8_t ant,
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uint8_t N_ap,
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uint32_t samples_per_frame,
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uint16_t *timing_advance_offset,
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int16_t *timing_advance_offset_nsec);
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void nr_pusch_ptrs_processing(PHY_VARS_gNB *gNB,
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NR_DL_FRAME_PARMS *frame_parms,
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nfapi_nr_pusch_pdu_t *rel15_ul,
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uint8_t ulsch_id,
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uint8_t nr_tti_rx,
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unsigned char symbol,
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uint32_t nb_re_pusch);
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int nr_srs_ls_channel_estimation(int ant,
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int p_index,
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uint16_t ofdm_symbol_size,
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uint16_t first_carrier_offset,
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uint8_t N_symb_SRS,
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const nfapi_nr_srs_pdu_t *srs_pdu,
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const nr_srs_info_t *nr_srs_info,
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const c16_t *srs_generated_signal,
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c16_t srs_received_signal[ofdm_symbol_size * N_symb_SRS],
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c16_t srs_ls_estimated_channel[ofdm_symbol_size * N_symb_SRS],
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delay_t *delay);
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int nr_srs_channel_interpolation(int ant,
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int p_index,
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uint16_t ofdm_symbol_size,
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uint16_t first_carrier_offset,
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uint8_t N_symb_SRS,
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const nfapi_nr_srs_pdu_t *srs_pdu,
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const nr_srs_info_t *nr_srs_info,
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const c16_t srs_ls_estimated_channel[ofdm_symbol_size * N_symb_SRS],
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int est_delay,
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c16_t srs_received_noise[ofdm_symbol_size * N_symb_SRS],
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c16_t srs_estimated_channel_freq[ofdm_symbol_size * N_symb_SRS],
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c16_t srs_estimated_channel_time[NR_SRS_IDFT_OVERSAMP_FACTOR * ofdm_symbol_size],
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c16_t srs_estimated_channel_time_shifted[NR_SRS_IDFT_OVERSAMP_FACTOR * ofdm_symbol_size],
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uint32_t *signal_power,
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c16_t delay_table[2 * MAX_DELAY_COMP + 1][NR_MAX_OFDM_SYMBOL_SIZE]);
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void nr_srs_noise_power_estimation(uint16_t ofdm_symbol_size,
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uint16_t first_carrier_offset,
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uint8_t N_symb_SRS,
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const nfapi_nr_srs_pdu_t *srs_pdu,
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const nr_srs_info_t *nr_srs_info,
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uint32_t signal_power,
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const c16_t srs_received_noise[ofdm_symbol_size * N_symb_SRS],
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uint32_t *noise_power,
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int16_t *noise_power_per_rb);
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void nr_freq_equalization(NR_DL_FRAME_PARMS *frame_parms,
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c16_t *rxdataF_comp,
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c16_t *ul_ch_mag,
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c16_t *ul_ch_mag_b,
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unsigned char symbol,
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unsigned short Msc_RS,
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unsigned char Qm);
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void nr_init_fde(void);
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#endif
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/** @}*/
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