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openairinterface5g/openair1/PHY/NR_UE_ESTIMATION/nr_estimation.h
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francescomani 04ee4ea8e5 restructuring of UE DLSCH code to handle 2 codewords
even if 2 codewords are currently not supported and not tested, the way UE handled the possibility of having 2 codewords was messy, in between support and non-support
the intention of this MR is to cleanup the code more than extend the support

Signed-off-by: Francesco Mani <email@francescomani.it>
2026-09-14 22:56:26 +09:00

144 lines
6.4 KiB
C

/*
* SPDX-License-Identifier: LicenseRef-CSSL-1.0
*/
#ifndef __NR_ESTIMATION_DEFS__H__
#define __NR_ESTIMATION_DEFS__H__
#include "PHY/nr_phy_common/inc/nr_phy_common.h"
#include "PHY/defs_nr_UE.h"
/** @addtogroup _PHY_PARAMETER_ESTIMATION_BLOCKS_
* @{
*/
/* A function to perform the channel estimation of DL PRS signal */
int nr_prs_channel_estimation(uint8_t gNB_id,
uint8_t rsc_id,
uint8_t rep_num,
PHY_VARS_NR_UE *ue,
const UE_nr_rxtx_proc_t *proc,
NR_DL_FRAME_PARMS *frame_params,
c16_t rxdataF[][ue->frame_parms.samples_per_slot_wCP]);
/* Generic function to find the peak of channel estimation buffer */
void peak_estimator(c16_t *buffer, int32_t buf_len, int32_t *peak_idx, int32_t *peak_val, int32_t mean_val);
/*!
\brief This function performs channel estimation including frequency and temporal interpolation
*/
void nr_pdcch_channel_estimation(const PHY_VARS_NR_UE *ue,
int nb_rb,
int rb_offset,
int dmrs_ref,
uint16_t first_carrier_offset,
uint16_t BWPStart,
int32_t pdcch_est_size,
c16_t pdcch_dl_ch_estimates[][pdcch_est_size],
c16_t rxdataF[ue->frame_parms.nb_antennas_rx][ue->frame_parms.ofdm_symbol_size],
c16_t *pilot);
c32_t nr_pbch_dmrs_correlation(const NR_DL_FRAME_PARMS *fp,
const int symbol,
const int dmrss,
const int Nid_cell,
const int ssb_start_subcarrier,
const uint32_t nr_gold_pbch[NR_PBCH_DMRS_LENGTH_DWORD],
const c16_t rxdataF[][fp->samples_per_slot_wCP]);
int nr_pbch_channel_estimation(const NR_DL_FRAME_PARMS *fp,
const sl_nr_ue_phy_params_t *sl_phy_params,
int estimateSz,
struct complex16 dl_ch_estimates[][estimateSz],
struct complex16 dl_ch_estimates_time[][fp->ofdm_symbol_size],
const UE_nr_rxtx_proc_t *proc,
unsigned char symbol,
int dmrss,
uint ssb_index,
uint n_hf,
int ssb_start_subcarrier,
const c16_t rxdataF[][fp->samples_per_slot_wCP],
bool sidelink,
uint Nid);
void nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
const UE_nr_rxtx_proc_t *proc,
const fapi_nr_dl_config_dlsch_pdu_rel15_t *dlsch,
const freq_alloc_bitmap_t *freq_alloc,
int nl,
unsigned short p,
unsigned char symbol,
uint32_t pdsch_est_size,
int32_t dl_ch_estimates[][pdsch_est_size],
int rxdataFsize,
c16_t rxdataF[][rxdataFsize],
uint32_t *nvar);
int nr_adjust_synch_ue(NR_DL_FRAME_PARMS *frame_parms,
PHY_VARS_NR_UE *ue,
int estimateSz,
struct complex16 dl_ch_estimates_time[][estimateSz],
uint8_t frame,
uint8_t subframe,
short coef);
void nr_ue_measurements(PHY_VARS_NR_UE *ue,
const UE_nr_rxtx_proc_t *proc,
int number_rbs,
uint32_t pdsch_est_size,
int32_t dl_ch_estimates[][pdsch_est_size]);
uint32_t nr_ue_calculate_ssb_rsrp(const NR_DL_FRAME_PARMS *fp,
const c16_t rxdataF[][fp->samples_per_slot_wCP],
int symbol_offset,
int ssb_start_subcarrier);
void nr_ue_ssb_rsrp_measurements(PHY_VARS_NR_UE *ue,
int ssb_index,
const UE_nr_rxtx_proc_t *proc,
c16_t rxdataF[][ue->frame_parms.samples_per_slot_wCP]);
// Structure to pass data to neighboring cell measurement task
typedef struct {
UE_nr_rxtx_proc_t proc;
PHY_VARS_NR_UE *ue;
c16_t **rxdata;
uint32_t rxdata_size;
c16_t rxdata_ant[];
} nr_meas_task_args_t;
void nr_ue_meas_neighboring_cell(void *arg);
void do_neighboring_cell_measurements(UE_nr_rxtx_proc_t *proc, PHY_VARS_NR_UE *ue, c16_t **rxdata, uint32_t rxdata_size);
void nr_ue_rrc_measurements(PHY_VARS_NR_UE *ue,
const UE_nr_rxtx_proc_t *proc,
c16_t rxdataF[][ue->frame_parms.samples_per_slot_wCP]);
void phy_adjust_gain_nr(PHY_VARS_NR_UE *ue,
uint32_t rx_power_fil_dB,
uint8_t gNB_id);
void nr_pdsch_ptrs_processing(int nbRx,
c16_t ptrs_phase_per_slot[][14],
int32_t ptrs_re_per_slot[][14],
uint32_t rx_size_symbol,
int nl,
c16_t rxdataF_comp[][nl][nbRx][rx_size_symbol],
NR_DL_FRAME_PARMS *frame_parms,
fapi_nr_dl_config_dlsch_pdu_rel15_t *dlsch_config,
uint8_t nr_slot_rx,
unsigned char symbol,
int nb_rb,
uint16_t rnti,
uint16_t *ptrsSymbPos,
uint8_t *ptrsSymbIdx);
int nr_sl_psbch_rsrp_measurements(PHY_VARS_NR_UE *ue,
sl_nr_ue_phy_params_t *sl_phy_params,
NR_DL_FRAME_PARMS *fp,
c16_t rxdataF[][fp->samples_per_slot_wCP],
bool use_SSS);
/** @}*/
#endif