Bartosz Podrygajlo
0161a1c4fd
After processing TX frequency domain data skip IFFT call for symbols that aren't used, the time domain buffer is memset instead.
63 lines
2.6 KiB
C
63 lines
2.6 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_COMMON__H__
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#define __MODULATION_COMMON__H__
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#include "PHY/defs_common.h"
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#include "PHY/defs_nr_common.h"
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/** @addtogroup _PHY_MODULATION_
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* @{
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*/
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/**
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\fn void PHY_ofdm_mod(int *input,int *output,int fftsize,unsigned char nb_symbols,unsigned short nb_prefix_samples,Extension_t
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etype) This function performs OFDM modulation with cyclic extension or zero-padding
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@param input The sequence input samples in the frequency-domain This is a concatenation of the input symbols in SIMD redundant
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format
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@param output The time-domain output signal
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@param fftsize size of OFDM symbol size (\f$N_d\f$)
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@param nb_symbols The number of OFDM symbols in the block
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@param nb_prefix_samples The number of prefix/suffix/zero samples
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@param etype Type of extension (CYCLIC_PREFIX,CYCLIC_SUFFIX,ZEROS)
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*/
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void PHY_ofdm_mod(const int *input,
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int *output,
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int fftsize,
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unsigned char nb_symbols,
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unsigned short nb_prefix_samples,
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Extension_t etype
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);
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void normal_prefix_mod(int32_t *txdataF,int32_t *txdata,uint8_t nsymb,LTE_DL_FRAME_PARMS *frame_parms);
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void nr_normal_prefix_mod(c16_t *txdataF,
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c16_t *txdata,
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uint8_t nsymb,
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const NR_DL_FRAME_PARMS *frame_parms,
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uint32_t slot,
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bool was_symbol_used[NR_NUMBER_OF_SYMBOLS_PER_SLOT]);
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void do_OFDM_mod(c16_t **txdataF, c16_t **txdata, uint32_t frame,uint16_t next_slot, LTE_DL_FRAME_PARMS *frame_parms);
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/** @}*/
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#endif
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