160 lines
7.3 KiB
C
160 lines
7.3 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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#ifndef __NR_ESTIMATION_DEFS__H__
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#define __NR_ESTIMATION_DEFS__H__
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#include "PHY/defs_nr_UE.h"
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/** @addtogroup _PHY_PARAMETER_ESTIMATION_BLOCKS_
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* @{
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*/
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/* A function to perform the channel estimation of DL PRS signal */
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int nr_prs_channel_estimation(uint8_t gNB_id,
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uint8_t rsc_id,
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uint8_t rep_num,
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PHY_VARS_NR_UE *ue,
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const UE_nr_rxtx_proc_t *proc,
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NR_DL_FRAME_PARMS *frame_params,
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c16_t rxdataF[][ue->frame_parms.samples_per_slot_wCP]);
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/* Generic function to find the peak of channel estimation buffer */
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void peak_estimator(c16_t *buffer, int32_t buf_len, int32_t *peak_idx, int32_t *peak_val, int32_t mean_val);
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/*!
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\brief This function performs channel estimation including frequency and temporal interpolation
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*/
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void nr_pdcch_channel_estimation(const PHY_VARS_NR_UE *ue,
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int nb_rb,
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int rb_offset,
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int dmrs_ref,
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uint16_t first_carrier_offset,
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uint16_t BWPStart,
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int32_t pdcch_est_size,
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c16_t pdcch_dl_ch_estimates[][pdcch_est_size],
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c16_t rxdataF[ue->frame_parms.nb_antennas_rx][ue->frame_parms.ofdm_symbol_size],
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c16_t *pilot);
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c32_t nr_pbch_dmrs_correlation(const NR_DL_FRAME_PARMS *fp,
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const UE_nr_rxtx_proc_t *proc,
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const int symbol,
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const int dmrss,
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const int Nid_cell,
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const int ssb_start_subcarrier,
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const uint32_t nr_gold_pbch[NR_PBCH_DMRS_LENGTH_DWORD],
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const c16_t rxdataF[][fp->samples_per_slot_wCP]);
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int nr_pbch_channel_estimation(const NR_DL_FRAME_PARMS *fp,
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const sl_nr_ue_phy_params_t *sl_phy_params,
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int estimateSz,
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struct complex16 dl_ch_estimates[][estimateSz],
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struct complex16 dl_ch_estimates_time[][fp->ofdm_symbol_size],
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const UE_nr_rxtx_proc_t *proc,
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unsigned char symbol,
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int dmrss,
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uint ssb_index,
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uint n_hf,
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int ssb_start_subcarrier,
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const c16_t rxdataF[][fp->samples_per_slot_wCP],
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bool sidelink,
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uint Nid);
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void nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
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const UE_nr_rxtx_proc_t *proc,
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const fapi_nr_dl_config_dlsch_pdu_rel15_t *dlsch,
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const freq_alloc_bitmap_t *freq_alloc,
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int nl,
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unsigned short p,
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unsigned char symbol,
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uint32_t pdsch_est_size,
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int32_t dl_ch_estimates[][pdsch_est_size],
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int rxdataFsize,
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c16_t rxdataF[][rxdataFsize],
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uint32_t *nvar);
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int nr_adjust_synch_ue(NR_DL_FRAME_PARMS *frame_parms,
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PHY_VARS_NR_UE *ue,
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int estimateSz,
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struct complex16 dl_ch_estimates_time[][estimateSz],
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uint8_t frame,
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uint8_t subframe,
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short coef);
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void nr_ue_measurements(PHY_VARS_NR_UE *ue,
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const UE_nr_rxtx_proc_t *proc,
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int number_rbs,
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uint32_t pdsch_est_size,
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int32_t dl_ch_estimates[][pdsch_est_size]);
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uint32_t nr_ue_calculate_ssb_rsrp(const NR_DL_FRAME_PARMS *fp,
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const c16_t rxdataF[][fp->samples_per_slot_wCP],
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int symbol_offset,
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int ssb_start_subcarrier);
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void nr_ue_ssb_rsrp_measurements(PHY_VARS_NR_UE *ue,
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int ssb_index,
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const UE_nr_rxtx_proc_t *proc,
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c16_t rxdataF[][ue->frame_parms.samples_per_slot_wCP]);
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// Structure to pass data to neighboring cell measurement task
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typedef struct {
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UE_nr_rxtx_proc_t proc;
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PHY_VARS_NR_UE *ue;
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c16_t *rxdata[NB_ANTENNAS_RX];
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uint32_t rxdata_size;
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c16_t rxdata_ant[];
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} nr_meas_task_args_t;
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void nr_ue_meas_neighboring_cell(void *arg);
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void do_neighboring_cell_measurements(UE_nr_rxtx_proc_t *proc, PHY_VARS_NR_UE *ue, c16_t **rxdata, uint32_t rxdata_size);
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void nr_ue_rrc_measurements(PHY_VARS_NR_UE *ue,
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const UE_nr_rxtx_proc_t *proc,
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c16_t rxdataF[][ue->frame_parms.samples_per_slot_wCP]);
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void phy_adjust_gain_nr(PHY_VARS_NR_UE *ue,
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uint32_t rx_power_fil_dB,
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uint8_t gNB_id);
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void nr_pdsch_ptrs_processing(int nbRx,
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c16_t ptrs_phase_per_slot[][14],
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int32_t ptrs_re_per_slot[][14],
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uint32_t rx_size_symbol,
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int32_t rxdataF_comp[][nbRx][rx_size_symbol * NR_SYMBOLS_PER_SLOT],
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NR_DL_FRAME_PARMS *frame_parms,
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NR_DL_UE_HARQ_t *dlsch0_harq,
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NR_DL_UE_HARQ_t *dlsch1_harq,
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uint8_t nr_slot_rx,
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unsigned char symbol,
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uint16_t rnti,
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NR_UE_DLSCH_t dlsch[2]);
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int nr_sl_psbch_rsrp_measurements(PHY_VARS_NR_UE *ue,
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sl_nr_ue_phy_params_t *sl_phy_params,
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NR_DL_FRAME_PARMS *fp,
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c16_t rxdataF[][fp->samples_per_slot_wCP],
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bool use_SSS);
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/** @}*/
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#endif
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