92 lines
4.3 KiB
C
92 lines
4.3 KiB
C
/*
|
|
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership.
|
|
* The OpenAirInterface Software Alliance licenses this file to You under
|
|
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
|
|
* except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.openairinterface.org/?page_id=698
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*-------------------------------------------------------------------------------
|
|
* For more information about the OpenAirInterface (OAI) Software Alliance:
|
|
* contact@openairinterface.org
|
|
*/
|
|
|
|
/*! \file PHY/MODULATION/beamforming.c
|
|
* \brief
|
|
* \author X. JIANG, F. Kaltenberger, R. KNOPP
|
|
* \date 2016
|
|
* \version 0.1
|
|
* \company Eurecom
|
|
* \email: xiwen.jiang@eurecom.fr,florian.kaltenberger@eurecom.fr,raymond.knopp@eurecom.fr
|
|
* \note
|
|
* \warning
|
|
*/
|
|
#include "PHY/defs_common.h"
|
|
#include "PHY/defs_eNB.h"
|
|
#include "PHY/phy_extern.h"
|
|
#include "PHY/CODING/coding_defs.h"
|
|
#include "PHY/CODING/coding_extern.h"
|
|
#include "PHY/CODING/lte_interleaver_inline.h"
|
|
#include "PHY/LTE_TRANSPORT/transport_eNB.h"
|
|
#include "modulation_eNB.h"
|
|
#include "common/utils/LOG/vcd_signal_dumper.h"
|
|
|
|
int beam_precoding(int32_t **txdataF,
|
|
int32_t **txdataF_BF,
|
|
LTE_DL_FRAME_PARMS *frame_parms,
|
|
int32_t ***beam_weights,
|
|
int slot,
|
|
int symbol,
|
|
int aa)
|
|
{
|
|
uint8_t p;
|
|
//uint16_t re=0;
|
|
int slot_offset_F;
|
|
|
|
slot_offset_F = slot*(frame_parms->ofdm_symbol_size)*((frame_parms->Ncp==1) ? 6 : 7);
|
|
|
|
// clear txdata_BF[aa][re] for each call of ue_spec_beamforming
|
|
memset(txdataF_BF[aa],0,sizeof(int32_t)*(frame_parms->ofdm_symbol_size));
|
|
|
|
for (p=0; p<NB_ANTENNA_PORTS_ENB; p++) {
|
|
if (p<frame_parms->nb_antenna_ports_eNB || p==5) {
|
|
multadd_cpx_vector((int16_t*)&txdataF[p][slot_offset_F+symbol*frame_parms->ofdm_symbol_size],
|
|
(int16_t*)beam_weights[p][aa],
|
|
(int16_t*)&txdataF_BF[aa][symbol*frame_parms->ofdm_symbol_size],
|
|
0,
|
|
frame_parms->ofdm_symbol_size,
|
|
15);
|
|
//mult_cpx_conj_vector((int16_t*)beam_weights[p][aa], (int16_t*)&txdataF[p][slot_offset_F+symbol*frame_parms->ofdm_symbol_size], (int16_t*)txdataF_BF[aa], frame_parms->ofdm_symbol_size, 15, 1);
|
|
|
|
// if check version
|
|
/*for (re=0;re<frame_parms->ofdm_symbol_size;re++) {
|
|
if (txdataF[p][slot_offset_F+symbol*frame_parms->ofdm_symbol_size+re]!=0) {
|
|
((int16_t*)&txdataF_BF[aa][re])[0] += (int16_t)((((int16_t*)&txdataF[p][slot_offset_F+symbol*frame_parms->ofdm_symbol_size+re])[0]*((int16_t*)&beam_weights[p][aa][re])[0])>>15);
|
|
((int16_t*)&txdataF_BF[aa][re])[0] -= (int16_t)((((int16_t*)&txdataF[p][slot_offset_F+symbol*frame_parms->ofdm_symbol_size+re])[1]*((int16_t*)&beam_weights[p][aa][re])[1])>>15);
|
|
((int16_t*)&txdataF_BF[aa][re])[1] += (int16_t)((((int16_t*)&txdataF[p][slot_offset_F+symbol*frame_parms->ofdm_symbol_size+re])[0]*((int16_t*)&beam_weights[p][aa][re])[1])>>15);
|
|
((int16_t*)&txdataF_BF[aa][re])[1] += (int16_t)((((int16_t*)&txdataF[p][slot_offset_F+symbol*frame_parms->ofdm_symbol_size+re])[1]*((int16_t*)&beam_weights[p][aa][re])[0])>>15);
|
|
|
|
printf("beamforming.c:txdataF[%d][%d]=%d+j%d, beam_weights[%d][%d][%d]=%d+j%d,txdata_BF[%d][%d]=%d+j%d\n",
|
|
p,slot_offset_F+symbol*frame_parms->ofdm_symbol_size+re,
|
|
((int16_t*)&txdataF[p][slot_offset_F+symbol*frame_parms->ofdm_symbol_size+re])[0],
|
|
((int16_t*)&txdataF[p][slot_offset_F+symbol*frame_parms->ofdm_symbol_size+re])[1],
|
|
p,aa,re,
|
|
((int16_t*)&beam_weights[p][aa][re])[0],((int16_t*)&beam_weights[p][aa][re])[1],
|
|
aa,re,
|
|
((int16_t*)&txdataF_BF[aa][re])[0],
|
|
((int16_t*)&txdataF_BF[aa][re])[1]);
|
|
}
|
|
}*/
|
|
}
|
|
}
|
|
return 0;
|
|
}
|