/* * 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; }