/******************************************************************************* OpenAirInterface Copyright(c) 1999 - 2014 Eurecom OpenAirInterface is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. OpenAirInterface is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenAirInterface.The full GNU General Public License is included in this distribution in the file called "COPYING". If not, see <http://www.gnu.org/licenses/>. Contact Information OpenAirInterface Admin: openair_admin@eurecom.fr OpenAirInterface Tech : openair_tech@eurecom.fr OpenAirInterface Dev : openair4g-devel@eurecom.fr Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE *******************************************************************************/ /*! \file PHY/LTE_TRANSPORT/uespec_pilots.c * \brief Top-level routines for generating DL ue-specific reference signals V12.5 2015-03 * \author X.JIANG * \date 2011 * \version 0.1 * \company Eurecom * \email: xiwen.jiangeurecom.fr * \note * \warning */ //#include "defs.h" #include "PHY/defs.h" void generate_ue_spec_pilots(PHY_VARS_eNB *phy_vars_eNB, uint8_t UE_id, int32_t **txdataF, int16_t amp, uint16_t Ntti, uint8_t beamforming_mode) { /*LTE_DL_FRAME_PARMS *frame_parms = &phy_vars_eNB->lte_frame_parms; uint32_t tti,tti_offset,slot_offset,Nsymb,samples_per_symbol; uint8_t second_pilot,aa; // printf("Doing TX pilots Nsymb %d, second_pilot %d\n",Nsymb,second_pilot); switch(beamforming_mode){ case 7: for (tti=0; tti<Ntti; tti++) { tti_offset = tti*frame_parms->ofdm_symbol_size*Nsymb; samples_per_symbol = frame_parms->ofdm_symbol_size; slot_offset = (tti*2)%20; // printf("tti %d : offset %d (slot %d)\n",tti,tti_offset,slot_offset); //Generate UE specific Pilots printf("generate_dl_ue_spec:tti_offset=%d\n",tti_offset); if(frame_parms->Ncp==0) { for(aa=0;aa<frame_parms->nb_antennas_tx;aa++){ //antenna port 5 symbol 0 slot 0 lte_dl_ue_spec(phy_vars_eNB, UE_id, &txdataF[aa][tti_offset+3*samples_per_symbol], amp, slot_offset, 1, 5, 0); //antenna port 5 symbol 1 slot 0 lte_dl_ue_spec(phy_vars_eNB, UE_id, &txdataF[aa][tti_offset+6*samples_per_symbol], amp, slot_offset, 1, 5, 0); //antenna port 5 symbol 0 slot 1 lte_dl_ue_spec(phy_vars_eNB, UE_id, &txdataF[aa][tti_offset+9*samples_per_symbol], amp, slot_offset+1, 0, 5, 0); //antenna port 5 symbol 1 slot 1 lte_dl_ue_spec(phy_vars_eNB, UE_id, &txdataF[aa][tti_offset+12*samples_per_symbol], amp, slot_offset+1, 1, 5, 0); } } else{ msg("generate_ue_soec_pilots:Extented Cyclic Prefix for TM7 is not supported yet.\n"); } } break; case 8: case 9: case 10: default: msg("[generate_ue_spec_pilots(in uespec_pilots.c)]ERROR:beamforming mode %d is not supported\n",beamforming_mode); }*/ } /*int generate_ue_spec_pilots_slot(PHY_VARS_eNB *phy_vars_eNB, int32_t **txdataF, int16_t amp, uint16_t slot, int first_pilot_only) { LTE_DL_FRAME_PARMS *frame_parms = &phy_vars_eNB->lte_frame_parms; uint32_t slot_offset,Nsymb,samples_per_symbol; uint8_t second_pilot; if (slot<0 || slot>= 20) { msg("generate_pilots_slot: slot not in range (%d)\n",slot); return(-1); } Nsymb = (frame_parms->Ncp==0)?7:6; second_pilot = (frame_parms->Ncp==0)?4:3; slot_offset = slot*frame_parms->ofdm_symbol_size*Nsymb; samples_per_symbol = frame_parms->ofdm_symbol_size; // printf("tti %d : offset %d (slot %d)\n",tti,tti_offset,slot_offset); //Generate Pilots //antenna 0 symbol 0 slot 0 lte_dl_cell_spec(phy_vars_eNB, &txdataF[0][slot_offset], amp, slot, 0, 0); if (first_pilot_only==0) { //antenna 0 symbol 3 slot 0 lte_dl_cell_spec(phy_vars_eNB, &txdataF[0][slot_offset+(second_pilot*samples_per_symbol)], amp, slot, 1, 0); } if (frame_parms->nb_antennas_tx > 1) { if (frame_parms->mode1_flag) { // antenna 1 symbol 0 slot 0 lte_dl_cell_spec(phy_vars_eNB, &txdataF[1][slot_offset], amp, slot, 0, 0); if (first_pilot_only==0) { // antenna 1 symbol 3 slot 0 lte_dl_cell_spec(phy_vars_eNB, &txdataF[1][slot_offset+(second_pilot*samples_per_symbol)], amp, slot, 1, 0); } } else { // antenna 1 symbol 0 slot 0 lte_dl_cell_spec(phy_vars_eNB, &txdataF[1][slot_offset], amp, slot, 0, 1); if (first_pilot_only == 0) { // antenna 1 symbol 3 slot 0 lte_dl_cell_spec(phy_vars_eNB, &txdataF[1][slot_offset+(second_pilot*samples_per_symbol)], amp, slot, 1, 1); } } } return(0); }*/