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/*******************************************************************************
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
gauthier
committed
OpenAirInterface Dev : openair4g-devel@lists.eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
#include "PHY/defs.h"
#include "PHY/impl_defs_lte.h"
//#define DEBUG_PC 1
/*
double ratioPB[2][4]={{ 1.0,4.0/5.0,3.0/5.0,2.0/5.0},
{ 5.0/4.0,1.0,3.0/4.0,1.0/2.0}};
*/
double ratioPB[2][4]= {{ 0.00000, -0.96910, -2.21849, -3.97940},
{ 0.96910, 0.00000, -1.24939, -3.01030}
};
double pa_values[8]= {-6.0,-4.77,-3.0,-1.77,0.0,1.0,2.0,3.0};
double get_pa_dB(PDSCH_CONFIG_DEDICATED *pdsch_config_dedicated)
{
return(pa_values[pdsch_config_dedicated->p_a]);
double computeRhoA_eNB(PDSCH_CONFIG_DEDICATED *pdsch_config_dedicated,
LTE_eNB_DLSCH_t *dlsch_eNB,int dl_power_off)
{
double rho_a_dB;
double sqrt_rho_a_lin;
rho_a_dB = pa_values[ pdsch_config_dedicated->p_a];
if(!dl_power_off)
rho_a_dB-=10*log10(2);
sqrt_rho_a_lin= pow(10,(0.05*rho_a_dB));
dlsch_eNB->sqrt_rho_a= (short) (sqrt_rho_a_lin*pow(2,13));
#ifdef DEBUG_PC
printf("sqrt_rho_a(eNB):%d\n",dlsch_eNB->sqrt_rho_a);
#endif
return(rho_a_dB);
}
double computeRhoB_eNB(PDSCH_CONFIG_DEDICATED *pdsch_config_dedicated,
PDSCH_CONFIG_COMMON *pdsch_config_common,
int dl_power_off)
{
double rho_a_dB, rho_b_dB;
double sqrt_rho_b_lin;
rho_a_dB= computeRhoA_eNB(pdsch_config_dedicated,dlsch_eNB,dl_power_off);
if(n_antenna_port>1)
rho_b_dB= ratioPB[1][pdsch_config_common->p_b] + rho_a_dB;
else
rho_b_dB= ratioPB[0][pdsch_config_common->p_b] + rho_a_dB;
sqrt_rho_b_lin= pow(10,(0.05*rho_b_dB));
dlsch_eNB->sqrt_rho_b= (short) (sqrt_rho_b_lin*pow(2,13));
#ifdef DEBUG_PC
printf("sqrt_rho_b(eNB):%d\n",dlsch_eNB->sqrt_rho_b);
#endif
return(rho_b_dB);
}
double computeRhoA_UE(PDSCH_CONFIG_DEDICATED *pdsch_config_dedicated,
LTE_UE_DLSCH_t *dlsch_ue,
unsigned char dl_power_off)
{
double rho_a_dB;
double sqrt_rho_a_lin;
rho_a_dB = pa_values[ pdsch_config_dedicated->p_a];
if(!dl_power_off)
rho_a_dB-=10*log10(2);
sqrt_rho_a_lin= pow(10,(0.05*rho_a_dB));
dlsch_ue->sqrt_rho_a= (short) (sqrt_rho_a_lin*pow(2,13));
#ifdef DEBUG_PC
printf("sqrt_rho_a(ue):%d\n",dlsch_ue->sqrt_rho_a);
#endif
return(rho_a_dB);
}
double computeRhoB_UE(PDSCH_CONFIG_DEDICATED *pdsch_config_dedicated,
PDSCH_CONFIG_COMMON *pdsch_config_common,
LTE_UE_DLSCH_t *dlsch_ue,
unsigned char dl_power_off)
{
double rho_a_dB, rho_b_dB;
double sqrt_rho_b_lin;
rho_a_dB= computeRhoA_UE(pdsch_config_dedicated,dlsch_ue,dl_power_off);
if(n_antenna_port>1)
rho_b_dB= ratioPB[1][pdsch_config_common->p_b] + rho_a_dB;
else
rho_b_dB= ratioPB[0][pdsch_config_common->p_b] + rho_a_dB;
sqrt_rho_b_lin= pow(10,(0.05*rho_b_dB));
dlsch_ue->sqrt_rho_b= (short) (sqrt_rho_b_lin*pow(2,13));
#ifdef DEBUG_PC
printf("sqrt_rho_b(ue):%d\n",dlsch_ue->sqrt_rho_b);
#endif
return(rho_b_dB);