Robert Schmidt
555a54f85e
1. Adding a "SL" frequency for Sidelink mode. The importance of this variable is to ensure that when we are in mode 1 (UE+UE+gNB), that the slot configuration and frequencies do not overlap. This SL frequency is important for rotation and allows us to utilize the OFDM modulation and demodulation functions that already exist in OAI. 2. Adding sl_mode to the command line for proper UE deployment when in SL mode. sl_mode can be set to 0, 1, or 2. sl_mode 0 indicates no-Sidelink at all, mode 1 is gNB, UE, and UE (3GPP defines mode numbers). sl_mode 2 indicated UE to UE communications with no gNB at all. 3. New functions for calculating the carrier frequency for SL mode.
94 lines
3.2 KiB
C
94 lines
3.2 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 __MODULATION_DEFS__H__
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#define __MODULATION_DEFS__H__
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#include "PHY/defs_common.h"
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#include "modulation_common.h"
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#include "PHY/defs_UE.h"
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#include "PHY/defs_nr_UE.h"
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/** @addtogroup _PHY_MODULATION_
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* @{
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*/
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/*!
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\brief This function implements the OFDM front end processor on reception (FEP)
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\param phy_vars_ue Pointer to PHY variables
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\param l symbol within slot (0..6/7)
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\param Ns Slot number (0..19)
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\param sample_offset offset within rxdata (points to beginning of subframe)
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\param no_prefix if 1 prefix is removed by HW
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\param reset_freq_est if non-zero it resets the frequency offset estimation loop
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*/
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int slot_fep(PHY_VARS_UE *phy_vars_ue,
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unsigned char l,
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unsigned char Ns,
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int sample_offset,
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int no_prefix,
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int reset_freq_est);
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int nr_slot_fep(PHY_VARS_NR_UE *ue,
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UE_nr_rxtx_proc_t *proc,
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unsigned char symbol,
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c16_t rxdataF[][ue->frame_parms.samples_per_slot_wCP]);
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int nr_slot_fep_init_sync(PHY_VARS_NR_UE *ue,
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UE_nr_rxtx_proc_t *proc,
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unsigned char symbol,
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int sample_offset,
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bool pbch_decoded,
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c16_t rxdataF[][ue->frame_parms.samples_per_slot_wCP],
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int link_type);
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int slot_fep_mbsfn(PHY_VARS_UE *phy_vars_ue,
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unsigned char l,
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int subframe,
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int sample_offset,
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int no_prefix);
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int slot_fep_mbsfn_khz_1dot25(PHY_VARS_UE *phy_vars_ue,
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int subframe,
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int sample_offset);
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int front_end_fft(PHY_VARS_UE *ue,
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unsigned char l,
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unsigned char Ns,
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int sample_offset,
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int no_prefix);
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int front_end_chanEst(PHY_VARS_UE *ue,
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unsigned char l,
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unsigned char Ns,
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int reset_freq_est);
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void apply_7_5_kHz(PHY_VARS_UE *phy_vars_ue,int32_t*txdata,uint8_t subframe);
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int compute_BF_weights(int32_t **beam_weights, int32_t **calib_dl_ch_estimates, PRECODE_TYPE_t precode_type, int nb_ant, int nb_freq);
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/** @}*/
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#endif
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