96 lines
3.5 KiB
C
96 lines
3.5 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_MODULATION_H__
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#define __NR_MODULATION_H__
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#include <stdint.h>
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#include "PHY/defs_nr_common.h"
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#include "PHY/defs_gNB.h"
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#include "PHY/NR_UE_TRANSPORT/nr_transport_ue.h"
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#define DMRS_MOD_ORDER 2
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/*! \brief Perform NR modulation. TS 38.211 V15.4.0 subclause 5.1
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@param[in] in, Pointer to input bits
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@param[in] length, size of input bits
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@param[in] modulation_type, modulation order
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@param[out] out, complex valued modulated symbols
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*/
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void nr_modulation(uint32_t *in,
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uint16_t length,
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uint16_t mod_order,
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int16_t *out);
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/*! \brief Perform NR layer mapping. TS 38.211 V15.4.0 subclause 7.3.1.3
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@param[in] mod_symbs, double Pointer to modulated symbols for each codeword
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@param[in] n_layers, number of layers
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@param[in] n_symbs, number of modulated symbols
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@param[out] tx_layers, modulated symbols for each layer
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*/
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void nr_layer_mapping(int16_t **mod_symbs,
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uint8_t n_layers,
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uint16_t n_symbs,
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int16_t **tx_layers);
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/*! \brief Perform NR layer mapping. TS 38.211 V15.4.0 subclause 7.3.1.3
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@param[in] ulsch_ue, double Pointer to NR_UE_ULSCH_t struct
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@param[in] n_layers, number of layers
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@param[in] n_symbs, number of modulated symbols
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@param[out] tx_layers, modulated symbols for each layer
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*/
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void nr_ue_layer_mapping(NR_UE_ULSCH_t **ulsch_ue,
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uint8_t n_layers,
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uint16_t n_symbs,
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int16_t **tx_layers);
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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 frame_parms Pointer to frame parameters
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\param rxdata Pointer to input data in time domain
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\param rxdataF Pointer to output data in frequency domain
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\param symbol symbol within slot (0..12/14)
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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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*/
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int nr_slot_fep_ul(NR_DL_FRAME_PARMS *frame_parms,
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int32_t *rxdata,
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int32_t *rxdataF,
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unsigned char symbol,
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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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/*!
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\brief This function implements the dft transform precoding in PUSCH
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\param z Pointer to output in frequnecy domain
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\param d Pointer to input in time domain
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\param Msc_PUSCH number of allocated data subcarriers
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*/
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void nr_dft(int32_t *z,int32_t *d, uint32_t Msc_PUSCH);
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#endif |