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openairinterface5g/openair1/PHY/LTE_ESTIMATION/lte_ue_measurements.c
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/*
* 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
*/
// this function fills the PHY_vars->PHY_measurement structure
#include "PHY/defs_UE.h"
#include "PHY/phy_extern_ue.h"
#include "common/utils/LOG/log.h"
#include "PHY/sse_intrin.h"
//#define k1 1000
#define k1 ((long long int) 1000)
#define k2 ((long long int) (1024-k1))
//#define DEBUG_MEAS_RRC
//#define DEBUG_MEAS_UE
//#define DEBUG_RANK_EST
int16_t cond_num_threshold = 0;
void print_shorts(char *s,short *x)
{
printf("%s : %d,%d,%d,%d,%d,%d,%d,%d\n",s,
x[0],x[1],x[2],x[3],x[4],x[5],x[6],x[7]
);
}
void print_ints(char *s,int *x)
{
printf("%s : %d,%d,%d,%d\n",s,
x[0],x[1],x[2],x[3]
);
}
int16_t get_PL(module_id_t Mod_id,uint8_t CC_id,uint8_t eNB_index)
{
PHY_VARS_UE *ue = PHY_vars_UE_g[Mod_id][CC_id];
/*
int RSoffset;
if (ue->frame_parms.mode1_flag == 1)
RSoffset = 6;
else
RSoffset = 3;
*/
LOG_D(PHY,"get_PL : Frame %d : rsrp %f dBm/RE (%f), eNB power %d dBm/RE\n", ue->proc.proc_rxtx[0].frame_rx,
(1.0*dB_fixed_times10(ue->measurements.rsrp[eNB_index])-(10.0*ue->rx_total_gain_dB))/10.0,
10*log10((double)ue->measurements.rsrp[eNB_index]),
ue->frame_parms.pdsch_config_common.referenceSignalPower);
return((int16_t)(((10*ue->rx_total_gain_dB) -
dB_fixed_times10(ue->measurements.rsrp[eNB_index])+
// dB_fixed_times10(RSoffset*12*ue_g[Mod_id][CC_id]->frame_parms.N_RB_DL) +
(ue->frame_parms.pdsch_config_common.referenceSignalPower*10))/10));
}
uint8_t get_n_adj_cells (module_id_t Mod_id,uint8_t CC_id)
{
PHY_VARS_UE *ue = PHY_vars_UE_g[Mod_id][CC_id];
if (ue)
return ue->measurements.n_adj_cells;
else
return 0;
}
uint32_t get_rx_total_gain_dB (module_id_t Mod_id,uint8_t CC_id)
{
PHY_VARS_UE *ue = PHY_vars_UE_g[Mod_id][CC_id];
if (ue)
return ue->rx_total_gain_dB;
return 0xFFFFFFFF;
}
uint32_t get_RSSI (module_id_t Mod_id,uint8_t CC_id)
{
PHY_VARS_UE *ue = PHY_vars_UE_g[Mod_id][CC_id];
if (ue)
return ue->measurements.rssi;
return 0xFFFFFFFF;
}
double get_RSRP(module_id_t Mod_id,uint8_t CC_id,uint8_t eNB_index)
{
AssertFatal(PHY_vars_UE_g!=NULL,"PHY_vars_UE_g is null\n");
AssertFatal(PHY_vars_UE_g[Mod_id]!=NULL,"PHY_vars_UE_g[%d] is null\n",Mod_id);
AssertFatal(PHY_vars_UE_g[Mod_id][CC_id]!=NULL,"PHY_vars_UE_g[%d][%d] is null\n",Mod_id,CC_id);
PHY_VARS_UE *ue = PHY_vars_UE_g[Mod_id][CC_id];
if (ue)
return ((dB_fixed_times10(ue->measurements.rsrp[eNB_index]))/10.0-
get_rx_total_gain_dB(Mod_id,0) -
10*log10(ue->frame_parms.N_RB_DL*12));
return -140.0;
}
uint32_t get_RSRQ(module_id_t Mod_id,uint8_t CC_id,uint8_t eNB_index)
{
PHY_VARS_UE *ue = PHY_vars_UE_g[Mod_id][CC_id];
if (ue)
return ue->measurements.rsrq[eNB_index];
return 0xFFFFFFFF;
}
int8_t set_RSRP_filtered(module_id_t Mod_id,uint8_t CC_id,uint8_t eNB_index,float rsrp)
{
PHY_VARS_UE *ue = PHY_vars_UE_g[Mod_id][CC_id];
if (ue) {
ue->measurements.rsrp_filtered[eNB_index]=rsrp;
return 0;
}
LOG_W(PHY,"[UE%d] could not set the rsrp\n",Mod_id);
return -1;
}
int8_t set_RSRQ_filtered(module_id_t Mod_id,uint8_t CC_id,uint8_t eNB_index,float rsrq)
{
PHY_VARS_UE *ue = PHY_vars_UE_g[Mod_id][CC_id];
if (ue) {
ue->measurements.rsrq_filtered[eNB_index]=rsrq;
return 0;
}
LOG_W(PHY,"[UE%d] could not set the rsrq\n",Mod_id);
return -1;
}
void ue_rrc_measurements(PHY_VARS_UE *ue,
uint8_t slot,
uint8_t abstraction_flag)
{
uint8_t subframe = slot>>1;
int aarx,rb;
uint8_t pss_symb;
uint8_t sss_symb;
int32_t **rxdataF;
int16_t *rxF,*rxF_pss,*rxF_sss;
uint16_t Nid_cell = ue->frame_parms.Nid_cell;
uint8_t eNB_offset,nu,l,nushift,k;
uint16_t off;
uint8_t previous_thread_id = ue->current_thread_id[subframe]==0 ? (RX_NB_TH-1):(ue->current_thread_id[subframe]-1);
//uint8_t isPss; // indicate if this is a slot for extracting PSS
//uint8_t isSss; // indicate if this is a slot for extracting SSS
//int32_t pss_ext[4][72]; // contain the extracted 6*12 REs for mapping the PSS
//int32_t sss_ext[4][72]; // contain the extracted 6*12 REs for mapping the SSS
//int32_t (*xss_ext)[72]; // point to either pss_ext or sss_ext for common calculation
//int16_t *re,*im; // real and imag part of each 32-bit xss_ext[][] value
//LOG_I(PHY,"UE RRC MEAS Start Subframe %d Frame Type %d slot %d \n",subframe,ue->frame_parms.frame_type,slot);
for (eNB_offset = 0; eNB_offset<1+ue->measurements.n_adj_cells; eNB_offset++) {
if (eNB_offset==0) {
ue->measurements.rssi = 0;
//ue->measurements.n0_power_tot = 0;
if (abstraction_flag == 0) {
if ( ((ue->frame_parms.frame_type == FDD) && ((subframe == 0) || (subframe == 5))) ||
((ue->frame_parms.frame_type == TDD) && ((subframe == 1) || (subframe == 6)))
)
{ // FDD PSS/SSS, compute noise in DTX REs
if (ue->frame_parms.Ncp == NORMAL) {
for (aarx=0; aarx<ue->frame_parms.nb_antennas_rx; aarx++) {
if(ue->frame_parms.frame_type == FDD)
{
rxF_sss = (int16_t *)&ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[subframe]].rxdataF[aarx][(5*ue->frame_parms.ofdm_symbol_size)];
rxF_pss = (int16_t *)&ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[subframe]].rxdataF[aarx][(6*ue->frame_parms.ofdm_symbol_size)];
}
else
{
rxF_sss = (int16_t *)&ue->common_vars.common_vars_rx_data_per_thread[previous_thread_id].rxdataF[aarx][(13*ue->frame_parms.ofdm_symbol_size)];
rxF_pss = (int16_t *)&ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[subframe]].rxdataF[aarx][(2*ue->frame_parms.ofdm_symbol_size)];
}
//-ve spectrum from SSS
//+ve spectrum from SSS
ue->measurements.n0_power[aarx] += (((int32_t)rxF_sss[2+70]*rxF_sss[2+70])+((int32_t)rxF_sss[2+69]*rxF_sss[2+69]));
ue->measurements.n0_power[aarx] += (((int32_t)rxF_sss[2+68]*rxF_sss[2+68])+((int32_t)rxF_sss[2+67]*rxF_sss[2+67]));
ue->measurements.n0_power[aarx] += (((int32_t)rxF_sss[2+66]*rxF_sss[2+66])+((int32_t)rxF_sss[2+65]*rxF_sss[2+65]));
// ue->measurements.n0_power[aarx] += (((int32_t)rxF_sss[2+64]*rxF_sss[2+64])+((int32_t)rxF_sss[2+63]*rxF_sss[2+63]));
// printf("sssp32 %d\n",ue->measurements.n0_power[aarx]);
//+ve spectrum from PSS
ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[2+70]*rxF_pss[2+70])+((int32_t)rxF_pss[2+69]*rxF_pss[2+69]));
ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[2+68]*rxF_pss[2+68])+((int32_t)rxF_pss[2+67]*rxF_pss[2+67]));
ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[2+66]*rxF_pss[2+66])+((int32_t)rxF_pss[2+65]*rxF_pss[2+65]));
// ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[2+64]*rxF_pss[2+64])+((int32_t)rxF_pss[2+63]*rxF_pss[2+63]));
// printf("pss32 %d\n",ue->measurements.n0_power[aarx]); //-ve spectrum from PSS
if(ue->frame_parms.frame_type == FDD)
{
rxF_sss = (int16_t *)&ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[subframe]].rxdataF[aarx][(6*ue->frame_parms.ofdm_symbol_size)];
rxF_pss = (int16_t *)&ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[subframe]].rxdataF[aarx][(7*ue->frame_parms.ofdm_symbol_size)];
}
else
{
rxF_sss = (int16_t *)&ue->common_vars.common_vars_rx_data_per_thread[previous_thread_id].rxdataF[aarx][(14*ue->frame_parms.ofdm_symbol_size)];
rxF_pss = (int16_t *)&ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[subframe]].rxdataF[aarx][(3*ue->frame_parms.ofdm_symbol_size)];
}
// ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[-72]*rxF_pss[-72])+((int32_t)rxF_pss[-71]*rxF_pss[-71]));
// printf("pssm36 %d\n",ue->measurements.n0_power[aarx]);
ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[-70]*rxF_pss[-70])+((int32_t)rxF_pss[-69]*rxF_pss[-69]));
ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[-68]*rxF_pss[-68])+((int32_t)rxF_pss[-67]*rxF_pss[-67]));
ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[-66]*rxF_pss[-66])+((int32_t)rxF_pss[-65]*rxF_pss[-65]));
ue->measurements.n0_power[aarx] = (((int32_t)rxF_sss[-70]*rxF_sss[-70])+((int32_t)rxF_sss[-69]*rxF_sss[-69]));
ue->measurements.n0_power[aarx] += (((int32_t)rxF_sss[-68]*rxF_sss[-68])+((int32_t)rxF_sss[-67]*rxF_sss[-67]));
ue->measurements.n0_power[aarx] += (((int32_t)rxF_sss[-66]*rxF_sss[-66])+((int32_t)rxF_sss[-65]*rxF_sss[-65]));
// ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[-64]*rxF_pss[-64])+((int32_t)rxF_pss[-63]*rxF_pss[-63]));
// printf("pssm32 %d\n",ue->measurements.n0_power[aarx]);
ue->measurements.n0_power_dB[aarx] = (unsigned short) dB_fixed(ue->measurements.n0_power[aarx]/12);
ue->measurements.n0_power_tot /*+=*/ = ue->measurements.n0_power[aarx];
}
//LOG_I(PHY,"Subframe %d RRC UE MEAS Noise Level %d \n", subframe, ue->measurements.n0_power_tot);
ue->measurements.n0_power_tot_dB = (unsigned short) dB_fixed(ue->measurements.n0_power_tot/(12*aarx));
ue->measurements.n0_power_tot_dBm = ue->measurements.n0_power_tot_dB - ue->rx_total_gain_dB - dB_fixed(ue->frame_parms.ofdm_symbol_size);
} else {
LOG_E(PHY, "Not yet implemented: noise power calculation when prefix length == EXTENDED\n");
}
}
else if ((ue->frame_parms.frame_type == TDD) &&
((subframe == 1) || (subframe == 6))) { // TDD PSS/SSS, compute noise in DTX REs // 2016-09-29 wilson fix incorrect noise power calculation
pss_symb = 2;
sss_symb = ue->frame_parms.symbols_per_tti-1;
if (ue->frame_parms.Ncp==NORMAL) {
for (aarx=0; aarx<ue->frame_parms.nb_antennas_rx; aarx++) {
rxdataF = ue->common_vars.common_vars_rx_data_per_thread[(ue->current_thread_id[subframe])].rxdataF;
rxF_pss = (int16_t *) &rxdataF[aarx][((pss_symb*(ue->frame_parms.ofdm_symbol_size)))];
rxdataF = ue->common_vars.common_vars_rx_data_per_thread[previous_thread_id].rxdataF;
rxF_sss = (int16_t *) &rxdataF[aarx][((sss_symb*(ue->frame_parms.ofdm_symbol_size)))];
//-ve spectrum from SSS
// printf("slot %d: SSS DTX: %d,%d, non-DTX %d,%d\n",slot,rxF_pss[-72],rxF_pss[-71],rxF_pss[-36],rxF_pss[-35]);
// ue->measurements.n0_power[aarx] = (((int32_t)rxF_pss[-72]*rxF_pss[-72])+((int32_t)rxF_pss[-71]*rxF_pss[-71]));
// printf("sssn36 %d\n",ue->measurements.n0_power[aarx]);
ue->measurements.n0_power[aarx] = (((int32_t)rxF_pss[-70]*rxF_pss[-70])+((int32_t)rxF_pss[-69]*rxF_pss[-69]));
ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[-68]*rxF_pss[-68])+((int32_t)rxF_pss[-67]*rxF_pss[-67]));
ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[-66]*rxF_pss[-66])+((int32_t)rxF_pss[-65]*rxF_pss[-65]));
// ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[-64]*rxF_pss[-64])+((int32_t)rxF_pss[-63]*rxF_pss[-63]));
// printf("sssm32 %d\n",ue->measurements.n0_power[aarx]);
//+ve spectrum from SSS
ue->measurements.n0_power[aarx] += (((int32_t)rxF_sss[2+70]*rxF_sss[2+70])+((int32_t)rxF_sss[2+69]*rxF_sss[2+69]));
ue->measurements.n0_power[aarx] += (((int32_t)rxF_sss[2+68]*rxF_sss[2+68])+((int32_t)rxF_sss[2+67]*rxF_sss[2+67]));
ue->measurements.n0_power[aarx] += (((int32_t)rxF_sss[2+66]*rxF_sss[2+66])+((int32_t)rxF_sss[2+65]*rxF_sss[2+65]));
// ue->measurements.n0_power[aarx] += (((int32_t)rxF_sss[2+64]*rxF_sss[2+64])+((int32_t)rxF_sss[2+63]*rxF_sss[2+63]));
// printf("sssp32 %d\n",ue->measurements.n0_power[aarx]);
//+ve spectrum from PSS
ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[2+70]*rxF_pss[2+70])+((int32_t)rxF_pss[2+69]*rxF_pss[2+69]));
ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[2+68]*rxF_pss[2+68])+((int32_t)rxF_pss[2+67]*rxF_pss[2+67]));
ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[2+66]*rxF_pss[2+66])+((int32_t)rxF_pss[2+65]*rxF_pss[2+65]));
// ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[2+64]*rxF_pss[2+64])+((int32_t)rxF_pss[2+63]*rxF_pss[2+63]));
// printf("pss32 %d\n",ue->measurements.n0_power[aarx]); //-ve spectrum from PSS
rxF_pss = (int16_t *)&ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[subframe]].rxdataF[aarx][(7*ue->frame_parms.ofdm_symbol_size)];
// ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[-72]*rxF_pss[-72])+((int32_t)rxF_pss[-71]*rxF_pss[-71]));
// printf("pssm36 %d\n",ue->measurements.n0_power[aarx]);
ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[-70]*rxF_pss[-70])+((int32_t)rxF_pss[-69]*rxF_pss[-69]));
ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[-68]*rxF_pss[-68])+((int32_t)rxF_pss[-67]*rxF_pss[-67]));
ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[-66]*rxF_pss[-66])+((int32_t)rxF_pss[-65]*rxF_pss[-65]));
// ue->measurements.n0_power[aarx] += (((int32_t)rxF_pss[-64]*rxF_pss[-64])+((int32_t)rxF_pss[-63]*rxF_pss[-63]));
// printf("pssm32 %d\n",ue->measurements.n0_power[aarx]);
ue->measurements.n0_power_dB[aarx] = (unsigned short) dB_fixed(ue->measurements.n0_power[aarx]/12);
ue->measurements.n0_power_tot /*+=*/ = ue->measurements.n0_power[aarx];
}
ue->measurements.n0_power_tot_dB = (unsigned short) dB_fixed(ue->measurements.n0_power_tot/(12*aarx));
ue->measurements.n0_power_tot_dBm = ue->measurements.n0_power_tot_dB - ue->rx_total_gain_dB - dB_fixed(ue->frame_parms.ofdm_symbol_size);
//LOG_I(PHY,"Subframe %d RRC UE MEAS Noise Level %d \n", subframe, ue->measurements.n0_power_tot);
}
}
}
}
// recompute nushift with eNB_offset corresponding to adjacent eNB on which to perform channel estimation
// printf("[PHY][UE %d] Frame %d slot %d Doing ue_rrc_measurements rsrp/rssi (Nid_cell %d, Nid2 %d, nushift %d, eNB_offset %d)\n",ue->Mod_id,ue->frame,slot,Nid_cell,Nid2,nushift,eNB_offset);
if (eNB_offset > 0)
Nid_cell = ue->measurements.adj_cell_id[eNB_offset-1];
nushift = Nid_cell%6;
ue->measurements.rsrp[eNB_offset] = 0;
if (abstraction_flag == 0) {
// compute RSRP using symbols 0 and 4-frame_parms->Ncp
for (l=0,nu=0; l<=(4-ue->frame_parms.Ncp); l+=(4-ue->frame_parms.Ncp),nu=3) {
k = (nu + nushift)%6;
//#ifdef DEBUG_MEAS_RRC
LOG_D(PHY,"[UE %d] Frame %d subframe %d Doing ue_rrc_measurements rsrp/rssi (Nid_cell %d, nushift %d, eNB_offset %d, k %d, l %d)\n",ue->Mod_id,ue->proc.proc_rxtx[subframe&1].frame_rx,subframe,Nid_cell,nushift,
eNB_offset,k,l);
//#endif
for (aarx=0; aarx<ue->frame_parms.nb_antennas_rx; aarx++) {
rxF = (int16_t *)&ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[subframe]].rxdataF[aarx][(l*ue->frame_parms.ofdm_symbol_size)];
off = (ue->frame_parms.first_carrier_offset+k)<<1;
if (l==(4-ue->frame_parms.Ncp)) {
for (rb=0; rb<ue->frame_parms.N_RB_DL; rb++) {
// printf("rb %d, off %d, off2 %d\n",rb,off,off2);
ue->measurements.rsrp[eNB_offset] += (((int32_t)(rxF[off])*rxF[off])+((int32_t)(rxF[off+1])*rxF[off+1]));
// printf("rb %d, off %d : %d\n",rb,off,((((int32_t)rxF[off])*rxF[off])+((int32_t)(rxF[off+1])*rxF[off+1])));
// if ((ue->frame_rx&0x3ff) == 0)
// printf("rb %d, off %d : %d\n",rb,off,((rxF[off]*rxF[off])+(rxF[off+1]*rxF[off+1])));
off+=12;
if (off>=(ue->frame_parms.ofdm_symbol_size<<1))
off = (1+k)<<1;
ue->measurements.rsrp[eNB_offset] += (((int32_t)(rxF[off])*rxF[off])+((int32_t)(rxF[off+1])*rxF[off+1]));
// printf("rb %d, off %d : %d\n",rb,off,(((int32_t)(rxF[off])*rxF[off])+((int32_t)(rxF[off+1])*rxF[off+1])));
/*
if ((ue->frame_rx&0x3ff) == 0)
printf("rb %d, off %d : %d\n",rb,off,((rxF[off]*rxF[off])+(rxF[off+1]*rxF[off+1])));
*/
off+=12;
if (off>=(ue->frame_parms.ofdm_symbol_size<<1))
off = (1+k)<<1;
}
/*
if ((eNB_offset==0)&&(l==0)) {
for (i=0;i<6;i++,off2+=4)
ue->measurements.rssi += ((rxF[off2]*rxF[off2])+(rxF[off2+1]*rxF[off2+1]));
if (off2==(ue->frame_parms.ofdm_symbol_size<<2))
off2=4;
for (i=0;i<6;i++,off2+=4)
ue->measurements.rssi += ((rxF[off2]*rxF[off2])+(rxF[off2+1]*rxF[off2+1]));
}
*/
// printf("slot %d, rb %d => rsrp %d, rssi %d\n",slot,rb,ue->measurements.rsrp[eNB_offset],ue->measurements.rssi);
}
}
}
// 2 RE per PRB
// ue->measurements.rsrp[eNB_offset]/=(24*ue->frame_parms.N_RB_DL);
ue->measurements.rsrp[eNB_offset]/=(2*ue->frame_parms.N_RB_DL*ue->frame_parms.ofdm_symbol_size);
// LOG_I(PHY,"eNB: %d, RSRP: %d \n",eNB_offset,ue->measurements.rsrp[eNB_offset]);
if (eNB_offset == 0) {
// ue->measurements.rssi/=(24*ue->frame_parms.N_RB_DL);
// ue->measurements.rssi*=rx_power_correction;
// ue->measurements.rssi=ue->measurements.rsrp[0]*24/2;
ue->measurements.rssi=ue->measurements.rsrp[0]*(12*ue->frame_parms.N_RB_DL);
}
if (ue->measurements.rssi>0)
ue->measurements.rsrq[eNB_offset] = 100*ue->measurements.rsrp[eNB_offset]*ue->frame_parms.N_RB_DL/ue->measurements.rssi;
else
ue->measurements.rsrq[eNB_offset] = -12000;
//((200*ue->measurements.rsrq[eNB_offset]) + ((1024-200)*100*ue->measurements.rsrp[eNB_offset]*ue->frame_parms.N_RB_DL/ue->measurements.rssi))>>10;
} else { // Do abstraction of RSRP and RSRQ
ue->measurements.rssi = ue->measurements.rx_power_avg[0];
// dummay value for the moment
ue->measurements.rsrp[eNB_offset] = -93 ;
ue->measurements.rsrq[eNB_offset] = 3;
}
//#ifdef DEBUG_MEAS_RRC
// if (slot == 0) {
if (eNB_offset == 0)
LOG_D(PHY,"[UE %d] Frame %d, subframe %d RRC Measurements => rssi %3.1f dBm (digital: %3.1f dB, gain %d), N0 %d dBm\n",ue->Mod_id,
ue->proc.proc_rxtx[subframe&1].frame_rx,subframe,10*log10(ue->measurements.rssi)-ue->rx_total_gain_dB,
10*log10(ue->measurements.rssi),
ue->rx_total_gain_dB,
ue->measurements.n0_power_tot_dBm);
LOG_D(PHY,"[UE %d] Frame %d, subframe %d RRC Measurements (idx %d, Cell id %d) => rsrp: %3.1f dBm/RE (%d), rsrq: %3.1f dB\n",
ue->Mod_id,
ue->proc.proc_rxtx[subframe&1].frame_rx,subframe,eNB_offset,
(eNB_offset>0) ? ue->measurements.adj_cell_id[eNB_offset-1] : ue->frame_parms.Nid_cell,
10*log10(ue->measurements.rsrp[eNB_offset])-ue->rx_total_gain_dB,
ue->measurements.rsrp[eNB_offset],
(10*log10(ue->measurements.rsrq[eNB_offset])));
//LOG_D(PHY,"RSRP_total_dB: %3.2f \n",(dB_fixed_times10(ue->measurements.rsrp[eNB_offset])/10.0)-ue->rx_total_gain_dB-dB_fixed(ue->frame_parms.N_RB_DL*12));
//LOG_D(PHY,"RSRP_dB: %3.2f \n",(dB_fixed_times10(ue->measurements.rsrp[eNB_offset])/10.0));
//LOG_D(PHY,"gain_loss_dB: %d \n",ue->rx_total_gain_dB);
//LOG_D(PHY,"gain_fixed_dB: %d \n",dB_fixed(ue->frame_parms.N_RB_DL*12));
// }
//#endif
}
}
void conjch0_mult_ch1(int *ch0,
int *ch1,
int32_t *ch0conj_ch1,
unsigned short nb_rb,
unsigned char output_shift0)
{
//This function is used to compute multiplications in Hhermitian * H matrix
unsigned short rb;
__m128i *dl_ch0_128,*dl_ch1_128, *ch0conj_ch1_128, mmtmpD0,mmtmpD1,mmtmpD2,mmtmpD3;
dl_ch0_128 = (__m128i *)ch0;
dl_ch1_128 = (__m128i *)ch1;
ch0conj_ch1_128 = (__m128i *)ch0conj_ch1;
for (rb=0; rb<3*nb_rb; rb++) {
mmtmpD0 = _mm_madd_epi16(dl_ch0_128[0],dl_ch1_128[0]);
mmtmpD1 = _mm_shufflelo_epi16(dl_ch0_128[0],_MM_SHUFFLE(2,3,0,1));
mmtmpD1 = _mm_shufflehi_epi16(mmtmpD1,_MM_SHUFFLE(2,3,0,1));
mmtmpD1 = _mm_sign_epi16(mmtmpD1,*(__m128i*)&conjugate[0]);
mmtmpD1 = _mm_madd_epi16(mmtmpD1,dl_ch1_128[0]);
mmtmpD0 = _mm_srai_epi32(mmtmpD0,output_shift0);
mmtmpD1 = _mm_srai_epi32(mmtmpD1,output_shift0);
mmtmpD2 = _mm_unpacklo_epi32(mmtmpD0,mmtmpD1);
mmtmpD3 = _mm_unpackhi_epi32(mmtmpD0,mmtmpD1);
ch0conj_ch1_128[0] = _mm_packs_epi32(mmtmpD2,mmtmpD3);
#ifdef DEBUG_RANK_EST
printf("\n Computing conjugates \n");
print_shorts("ch0:",(int16_t*)&dl_ch0_128[0]);
print_shorts("ch1:",(int16_t*)&dl_ch1_128[0]);
print_shorts("pack:",(int16_t*)&ch0conj_ch1_128[0]);
#endif
dl_ch0_128+=1;
dl_ch1_128+=1;
ch0conj_ch1_128+=1;
}
_mm_empty();
_m_empty();
}
void construct_HhH_elements(int *ch0conj_ch0, //00_00
int *ch1conj_ch1,//01_01
int *ch2conj_ch2,//11_11
int *ch3conj_ch3,//10_10
int *ch0conj_ch1,//00_01
int *ch1conj_ch0,//01_00
int *ch2conj_ch3,//10_11
int *ch3conj_ch2,//11_10
int32_t *after_mf_00,
int32_t *after_mf_01,
int32_t *after_mf_10,
int32_t *after_mf_11,
unsigned short nb_rb)
{
unsigned short rb;
__m128i *ch0conj_ch0_128, *ch1conj_ch1_128, *ch2conj_ch2_128, *ch3conj_ch3_128;
__m128i *ch0conj_ch1_128, *ch1conj_ch0_128, *ch2conj_ch3_128, *ch3conj_ch2_128;
__m128i *after_mf_00_128, *after_mf_01_128, *after_mf_10_128, *after_mf_11_128;
ch0conj_ch0_128 = (__m128i *)ch0conj_ch0;
ch1conj_ch1_128 = (__m128i *)ch1conj_ch1;
ch2conj_ch2_128 = (__m128i *)ch2conj_ch2;
ch3conj_ch3_128 = (__m128i *)ch3conj_ch3;
ch0conj_ch1_128 = (__m128i *)ch0conj_ch1;
ch1conj_ch0_128 = (__m128i *)ch1conj_ch0;
ch2conj_ch3_128 = (__m128i *)ch2conj_ch3;
ch3conj_ch2_128 = (__m128i *)ch3conj_ch2;
after_mf_00_128 = (__m128i *)after_mf_00;
after_mf_01_128 = (__m128i *)after_mf_01;
after_mf_10_128 = (__m128i *)after_mf_10;
after_mf_11_128 = (__m128i *)after_mf_11;
for (rb=0; rb<3*nb_rb; rb++) {
after_mf_00_128[0] =_mm_adds_epi16(ch0conj_ch0_128[0],ch3conj_ch3_128[0]);// _mm_adds_epi32(ch0conj_ch0_128[0], ch3conj_ch3_128[0]); //00_00 + 10_10
after_mf_11_128[0] =_mm_adds_epi16(ch1conj_ch1_128[0], ch2conj_ch2_128[0]); //01_01 + 11_11
after_mf_01_128[0] =_mm_adds_epi16(ch0conj_ch1_128[0], ch2conj_ch3_128[0]);//00_01 + 10_11
after_mf_10_128[0] =_mm_adds_epi16(ch1conj_ch0_128[0], ch3conj_ch2_128[0]);//01_00 + 11_10
#ifdef DEBUG_RANK_EST
printf(" \n construct_HhH_elements \n");
print_shorts("ch0conj_ch0_128:",(int16_t*)&ch0conj_ch0_128[0]);
print_shorts("ch1conj_ch1_128:",(int16_t*)&ch1conj_ch1_128[0]);
print_shorts("ch2conj_ch2_128:",(int16_t*)&ch2conj_ch2_128[0]);
print_shorts("ch3conj_ch3_128:",(int16_t*)&ch3conj_ch3_128[0]);
print_shorts("ch0conj_ch1_128:",(int16_t*)&ch0conj_ch1_128[0]);
print_shorts("ch1conj_ch0_128:",(int16_t*)&ch1conj_ch0_128[0]);
print_shorts("ch2conj_ch3_128:",(int16_t*)&ch2conj_ch3_128[0]);
print_shorts("ch3conj_ch2_128:",(int16_t*)&ch3conj_ch2_128[0]);
print_shorts("after_mf_00_128:",(int16_t*)&after_mf_00_128[0]);
print_shorts("after_mf_01_128:",(int16_t*)&after_mf_01_128[0]);
print_shorts("after_mf_10_128:",(int16_t*)&after_mf_10_128[0]);
print_shorts("after_mf_11_128:",(int16_t*)&after_mf_11_128[0]);
#endif
ch0conj_ch0_128+=1;
ch1conj_ch1_128+=1;
ch2conj_ch2_128+=1;
ch3conj_ch3_128+=1;
ch0conj_ch1_128+=1;
ch1conj_ch0_128+=1;
ch2conj_ch3_128+=1;
ch3conj_ch2_128+=1;
after_mf_00_128+=1;
after_mf_01_128+=1;
after_mf_10_128+=1;
after_mf_11_128+=1;
}
_mm_empty();
_m_empty();
}
void squared_matrix_element(int32_t *Hh_h_00,
int32_t *Hh_h_00_sq,
unsigned short nb_rb)
{
unsigned short rb;
__m128i *Hh_h_00_128,*Hh_h_00_sq_128;
Hh_h_00_128 = (__m128i *)Hh_h_00;
Hh_h_00_sq_128 = (__m128i *)Hh_h_00_sq;
for (rb=0; rb<3*nb_rb; rb++) {
Hh_h_00_sq_128[0] = _mm_madd_epi16(Hh_h_00_128[0],Hh_h_00_128[0]);
#ifdef DEBUG_RANK_EST
printf("\n Computing squared_matrix_element \n");
print_shorts("Hh_h_00_128:",(int16_t*)&Hh_h_00_128[0]);
print_ints("Hh_h_00_sq_128:",(int32_t*)&Hh_h_00_sq_128[0]);
#endif
Hh_h_00_sq_128+=1;
Hh_h_00_128+=1;
}
_mm_empty();
_m_empty();
}
void det_HhH(int32_t *after_mf_00,
int32_t *after_mf_01,
int32_t *after_mf_10,
int32_t *after_mf_11,
int32_t *det_fin,
unsigned short nb_rb)
{
unsigned short rb;
__m128i *after_mf_00_128,*after_mf_01_128, *after_mf_10_128, *after_mf_11_128, ad_re_128, bc_re_128;
__m128i *det_fin_128, det_128;
after_mf_00_128 = (__m128i *)after_mf_00;
after_mf_01_128 = (__m128i *)after_mf_01;
after_mf_10_128 = (__m128i *)after_mf_10;
after_mf_11_128 = (__m128i *)after_mf_11;
det_fin_128 = (__m128i *)det_fin;
for (rb=0; rb<3*nb_rb; rb++) {
ad_re_128 = _mm_madd_epi16(after_mf_00_128[0],after_mf_11_128[0]);
bc_re_128 = _mm_madd_epi16(after_mf_01_128[0],after_mf_01_128[0]);
det_128 = _mm_sub_epi32(ad_re_128, bc_re_128);
det_fin_128[0] = _mm_abs_epi32(det_128);
#ifdef DEBUG_RANK_EST
printf("\n Computing denominator \n");
print_shorts("after_mf_00_128:",(int16_t*)&after_mf_00_128[0]);
print_shorts("after_mf_01_128:",(int16_t*)&after_mf_01_128[0]);
print_shorts("after_mf_10_128:",(int16_t*)&after_mf_10_128[0]);
print_shorts("after_mf_11_128:",(int16_t*)&after_mf_11_128[0]);
print_ints("ad_re_128:",(int32_t*)&ad_re_128);
print_ints("bc_re_128:",(int32_t*)&bc_re_128);
print_ints("det_fin_128:",(int32_t*)&det_fin_128[0]);
#endif
det_fin_128+=1;
after_mf_00_128+=1;
after_mf_01_128+=1;
after_mf_10_128+=1;
after_mf_11_128+=1;
}
_mm_empty();
_m_empty();
}
void numer(int32_t *Hh_h_00_sq,
int32_t *Hh_h_01_sq,
int32_t *Hh_h_10_sq,
int32_t *Hh_h_11_sq,
int32_t *num_fin,
unsigned short nb_rb)
{
unsigned short rb;
__m128i *h_h_00_sq_128, *h_h_01_sq_128, *h_h_10_sq_128, *h_h_11_sq_128;
__m128i *num_fin_128, sq_a_plus_sq_d_128, sq_b_plus_sq_c_128;
h_h_00_sq_128 = (__m128i *)Hh_h_00_sq;
h_h_01_sq_128 = (__m128i *)Hh_h_01_sq;
h_h_10_sq_128 = (__m128i *)Hh_h_10_sq;
h_h_11_sq_128 = (__m128i *)Hh_h_11_sq;
num_fin_128 = (__m128i *)num_fin;
for (rb=0; rb<3*nb_rb; rb++) {
sq_a_plus_sq_d_128 = _mm_add_epi32(h_h_00_sq_128[0],h_h_11_sq_128[0]);
sq_b_plus_sq_c_128 = _mm_add_epi32(h_h_01_sq_128[0],h_h_10_sq_128[0]);
num_fin_128[0] = _mm_add_epi32(sq_a_plus_sq_d_128, sq_b_plus_sq_c_128);
#ifdef DEBUG_RANK_EST
printf("\n Computing numerator \n");
print_ints("h_h_00_sq_128:",(int32_t*)&h_h_00_sq_128[0]);
print_ints("h_h_01_sq_128:",(int32_t*)&h_h_01_sq_128[0]);
print_ints("h_h_10_sq_128:",(int32_t*)&h_h_10_sq_128[0]);
print_ints("h_h_11_sq_128:",(int32_t*)&h_h_11_sq_128[0]);
print_shorts("sq_a_plus_sq_d_128:",(int16_t*)&sq_a_plus_sq_d_128);
print_shorts("sq_b_plus_sq_c_128:",(int16_t*)&sq_b_plus_sq_c_128);
print_shorts("num_fin_128:",(int16_t*)&num_fin_128[0]);
#endif
num_fin_128+=1;
h_h_00_sq_128+=1;
h_h_01_sq_128+=1;
h_h_10_sq_128+=1;
h_h_11_sq_128+=1;
}
_mm_empty();
_m_empty();
}
void dlsch_channel_level_TM34_meas(int *ch00,
int *ch01,
int *ch10,
int *ch11,
int *avg_0,
int *avg_1,
unsigned short nb_rb)
{
#if defined(__x86_64__)||defined(__i386__)
short rb;
unsigned char nre=12;
__m128i *ch00_128, *ch01_128, *ch10_128, *ch11_128;
__m128i avg_0_row0_128D, avg_1_row0_128D, avg_0_row1_128D, avg_1_row1_128D;
__m128i ch00_128_tmp, ch01_128_tmp, ch10_128_tmp, ch11_128_tmp;
avg_0[0] = 0;
avg_0[1] = 0;
avg_1[0] = 0;
avg_1[1] = 0;
ch00_128 = (__m128i *)ch00;
ch01_128 = (__m128i *)ch01;
ch10_128 = (__m128i *)ch10;
ch11_128 = (__m128i *)ch11;
avg_0_row0_128D = _mm_setzero_si128();
avg_1_row0_128D = _mm_setzero_si128();
avg_0_row1_128D = _mm_setzero_si128();
avg_1_row1_128D = _mm_setzero_si128();
for (rb=0; rb<3*nb_rb; rb++) {
ch00_128_tmp = _mm_load_si128(&ch00_128[0]);
ch01_128_tmp = _mm_load_si128(&ch01_128[0]);
ch10_128_tmp = _mm_load_si128(&ch10_128[0]);
ch11_128_tmp = _mm_load_si128(&ch11_128[0]);
avg_0_row0_128D = _mm_add_epi32(avg_0_row0_128D,_mm_madd_epi16(ch00_128_tmp,ch00_128_tmp));
avg_1_row0_128D = _mm_add_epi32(avg_1_row0_128D,_mm_madd_epi16(ch01_128_tmp,ch01_128_tmp));
avg_0_row1_128D = _mm_add_epi32(avg_0_row1_128D,_mm_madd_epi16(ch10_128_tmp,ch10_128_tmp));
avg_1_row1_128D = _mm_add_epi32(avg_1_row1_128D,_mm_madd_epi16(ch11_128_tmp,ch11_128_tmp));
ch00_128+=1;
ch01_128+=1;
ch10_128+=1;
ch11_128+=1;
}
avg_0[0] = (((int*)&avg_0_row0_128D)[0])/(nb_rb*nre) +
(((int*)&avg_0_row0_128D)[1])/(nb_rb*nre) +
(((int*)&avg_0_row0_128D)[2])/(nb_rb*nre) +
(((int*)&avg_0_row0_128D)[3])/(nb_rb*nre);
avg_1[0] = (((int*)&avg_1_row0_128D)[0])/(nb_rb*nre) +
(((int*)&avg_1_row0_128D)[1])/(nb_rb*nre) +
(((int*)&avg_1_row0_128D)[2])/(nb_rb*nre) +
(((int*)&avg_1_row0_128D)[3])/(nb_rb*nre);
avg_0[1] = (((int*)&avg_0_row1_128D)[0])/(nb_rb*nre) +
(((int*)&avg_0_row1_128D)[1])/(nb_rb*nre) +
(((int*)&avg_0_row1_128D)[2])/(nb_rb*nre) +
(((int*)&avg_0_row1_128D)[3])/(nb_rb*nre);
avg_1[1] = (((int*)&avg_1_row1_128D)[0])/(nb_rb*nre) +
(((int*)&avg_1_row1_128D)[1])/(nb_rb*nre) +
(((int*)&avg_1_row1_128D)[2])/(nb_rb*nre) +
(((int*)&avg_1_row1_128D)[3])/(nb_rb*nre);
avg_0[0] = avg_0[0] + avg_0[1];
avg_1[0] = avg_1[0] + avg_1[1];
avg_0[0] = min (avg_0[0], avg_1[0]);
avg_1[0] = avg_0[0];
_mm_empty();
_m_empty();
#elif defined(__arm__)
#endif
}
uint8_t rank_estimation_tm3_tm4 (int *dl_ch_estimates_00, // please respect the order of channel estimates
int *dl_ch_estimates_01,
int *dl_ch_estimates_10,
int *dl_ch_estimates_11,
unsigned short nb_rb)
{
int i=0;
int rank=0;
int N_RB=nb_rb;
int *ch00_rank, *ch01_rank, *ch10_rank, *ch11_rank;
int32_t shift;
int avg_0[2];
int avg_1[2];
int count=0;
/* we need at least alignment to 16 bytes, let's put 32 to be sure
* (maybe not necessary but doesn't hurt)
*/
int32_t conjch00_ch01[12*N_RB] __attribute__((aligned(32)));
int32_t conjch01_ch00[12*N_RB] __attribute__((aligned(32)));
int32_t conjch10_ch11[12*N_RB] __attribute__((aligned(32)));
int32_t conjch11_ch10[12*N_RB] __attribute__((aligned(32)));
int32_t conjch00_ch00[12*N_RB] __attribute__((aligned(32)));
int32_t conjch01_ch01[12*N_RB] __attribute__((aligned(32)));
int32_t conjch10_ch10[12*N_RB] __attribute__((aligned(32)));
int32_t conjch11_ch11[12*N_RB] __attribute__((aligned(32)));
int32_t af_mf_00[12*N_RB] __attribute__((aligned(32)));
int32_t af_mf_00_sq[12*N_RB] __attribute__((aligned(32)));
int32_t af_mf_01_sq[12*N_RB] __attribute__((aligned(32)));
int32_t af_mf_10_sq[12*N_RB] __attribute__((aligned(32)));
int32_t af_mf_11_sq[12*N_RB] __attribute__((aligned(32)));
int32_t af_mf_01[12*N_RB] __attribute__((aligned(32)));
int32_t af_mf_10[12*N_RB] __attribute__((aligned(32)));
int32_t af_mf_11[12*N_RB] __attribute__((aligned(32)));
int32_t determ_fin[12*N_RB] __attribute__((aligned(32)));
int32_t denum_db[12*N_RB] __attribute__((aligned(32)));
int32_t numer_fin[12*N_RB] __attribute__((aligned(32)));
int32_t numer_db[12*N_RB] __attribute__((aligned(32)));
int32_t cond_db[12*N_RB] __attribute__((aligned(32)));
ch00_rank = dl_ch_estimates_00;
ch01_rank = dl_ch_estimates_01;
ch10_rank = dl_ch_estimates_10;
ch11_rank = dl_ch_estimates_11;
dlsch_channel_level_TM34_meas(ch00_rank,
ch01_rank,
ch10_rank,
ch11_rank,
avg_0,
avg_1,
N_RB);
avg_0[0] = (log2_approx(avg_0[0])/2);
shift = cmax(avg_0[0],0);
#ifdef DEBUG_RANK_EST
printf("\n shift %d \n" , shift);
printf("\n conj(ch00)ch01 \n");
#endif
conjch0_mult_ch1(ch00_rank,
ch01_rank,
conjch00_ch01,
N_RB,
shift); // this is an arbitrary shift to avoid overflow. can be changed.
#ifdef DEBUG_RANK_EST
printf("\n conj(ch01)ch00 \n");
#endif
conjch0_mult_ch1(ch01_rank,
ch00_rank,
conjch01_ch00,
N_RB,
shift);
#ifdef DEBUG_RANK_EST
printf("\n conj(ch10)ch11 \n");
#endif
conjch0_mult_ch1(ch10_rank,
ch11_rank,
conjch10_ch11,
N_RB,
shift);
#ifdef DEBUG_RANK_EST
printf("\n conj(ch11)ch10 \n");
#endif
conjch0_mult_ch1(ch11_rank,
ch10_rank,
conjch11_ch10,
N_RB,
shift);
#ifdef DEBUG_RANK_EST
printf("\n conj(ch00)ch00 \n");
#endif
conjch0_mult_ch1(ch00_rank,
ch00_rank,
conjch00_ch00,
N_RB,
shift);
#ifdef DEBUG_RANK_EST
printf("\n conj(ch01)ch01 \n");
#endif
conjch0_mult_ch1(ch01_rank,
ch01_rank,
conjch01_ch01,
N_RB,
shift);
#ifdef DEBUG_RANK_EST
printf("\n conj(ch10)ch10 \n");
#endif
conjch0_mult_ch1(ch10_rank,
ch10_rank,
conjch10_ch10,
N_RB,
shift);
#ifdef DEBUG_RANK_EST
printf("\n conj(ch11)ch11 \n");
#endif
conjch0_mult_ch1(ch11_rank,
ch11_rank,
conjch11_ch11,
N_RB,
shift);
construct_HhH_elements(conjch00_ch00,
conjch01_ch01,
conjch11_ch11,
conjch10_ch10,
conjch00_ch01,
conjch01_ch00,
conjch10_ch11,
conjch11_ch10,
af_mf_00,
af_mf_01,
af_mf_10,
af_mf_11,
N_RB);
#ifdef DEBUG_RANK_EST
printf("\n |HhH00|^2 \n");
#endif
squared_matrix_element(af_mf_00,
af_mf_00_sq,
N_RB);
#ifdef DEBUG_RANK_EST
printf("\n |HhH01|^2 \n");
#endif
squared_matrix_element(af_mf_01,
af_mf_01_sq,
N_RB);
#ifdef DEBUG_RANK_EST
printf("\n |HhH10|^2 \n");
#endif
squared_matrix_element(af_mf_10,
af_mf_10_sq,
N_RB);
#ifdef DEBUG_RANK_EST
printf("\n |HhH11|^2 \n");
#endif
squared_matrix_element(af_mf_11,
af_mf_11_sq,
N_RB);
det_HhH(af_mf_00,
af_mf_01,
af_mf_10,
af_mf_11,
determ_fin,
N_RB);
numer(af_mf_00_sq,
af_mf_01_sq,
af_mf_10_sq,
af_mf_11_sq,
numer_fin,
N_RB);
for (i=1; i<12*N_RB; i++)
{
denum_db[i]=dB_fixed(determ_fin[i]);
numer_db[i]=dB_fixed(numer_fin[i]);
cond_db[i]=(numer_db[i]-denum_db[i]);
if (cond_db[i] < cond_num_threshold)
count++;
#ifdef DEBUG_RANK_EST
printf("cond_num_threshold =%d \n", cond_num_threshold);
printf("i %d numer_db[i] = %d \n", i, numer_db[i]);
printf("i %d denum_db[i] = %d \n", i, denum_db[i]);
printf("i %d cond_db[i] = %d \n", i, cond_db[i]);
printf("i %d counter = %d \n", i, count);
#endif
}
if (count >= 6*N_RB) // conditional number is lower 10dB in half on more Res Blocks
rank=1;
#ifdef DEBUG_RANK_EST
printf(" rank = %d \n", rank);
#endif
return(rank);
}
void lte_ue_measurements(PHY_VARS_UE *ue,
unsigned int subframe_offset,
unsigned char N0_symbol,
unsigned char abstraction_flag,
unsigned char rank_adaptation,
uint8_t subframe)
{
int aarx,aatx,eNB_id=0; //,gain_offset=0;
//int rx_power[NUMBER_OF_CONNECTED_eNB_MAX];
int i;
unsigned int limit,subband;
#if defined(__x86_64__) || defined(__i386__)
__m128i *dl_ch0_128,*dl_ch1_128;
#elif defined(__arm__)
int16x8_t *dl_ch0_128, *dl_ch1_128;
#endif
int *dl_ch0,*dl_ch1;
LTE_DL_FRAME_PARMS *frame_parms = &ue->frame_parms;
int nb_subbands,subband_size,last_subband_size;
int N_RB_DL = frame_parms->N_RB_DL;
int rank_tm3_tm4=-1;
ue->measurements.nb_antennas_rx = frame_parms->nb_antennas_rx;
switch (N_RB_DL) {
case 6:
nb_subbands = 6;
subband_size = 12;
last_subband_size = 0;
break;
default:
case 25:
nb_subbands = 7;
subband_size = 4*12;
last_subband_size = 12;
break;
case 50:
nb_subbands = 9;
subband_size = 6*12;
last_subband_size = 2*12;
break;
case 100:
nb_subbands = 13;
subband_size = 8*12;
last_subband_size = 4*12;
break;
}
// signal measurements
for (eNB_id=0; eNB_id<ue->n_connected_eNB; eNB_id++) {
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
for (aatx=0; aatx<frame_parms->nb_antenna_ports_eNB; aatx++) {
ue->measurements.rx_spatial_power[eNB_id][aatx][aarx] =
(signal_energy_nodc(&ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[subframe]].dl_ch_estimates[eNB_id][(aatx<<1) + aarx][0],
(N_RB_DL*12)));
//- ue->measurements.n0_power[aarx];
if (ue->measurements.rx_spatial_power[eNB_id][aatx][aarx]<0)
ue->measurements.rx_spatial_power[eNB_id][aatx][aarx] = 0; //ue->measurements.n0_power[aarx];
ue->measurements.rx_spatial_power_dB[eNB_id][aatx][aarx] = (unsigned short) dB_fixed(ue->measurements.rx_spatial_power[eNB_id][aatx][aarx]);
if (aatx==0)
ue->measurements.rx_power[eNB_id][aarx] = ue->measurements.rx_spatial_power[eNB_id][aatx][aarx];
else
ue->measurements.rx_power[eNB_id][aarx] += ue->measurements.rx_spatial_power[eNB_id][aatx][aarx];
} //aatx
ue->measurements.rx_power_dB[eNB_id][aarx] = (unsigned short) dB_fixed(ue->measurements.rx_power[eNB_id][aarx]);
if (aarx==0)
ue->measurements.rx_power_tot[eNB_id] = ue->measurements.rx_power[eNB_id][aarx];
else
ue->measurements.rx_power_tot[eNB_id] += ue->measurements.rx_power[eNB_id][aarx];
} //aarx
ue->measurements.rx_power_tot_dB[eNB_id] = (unsigned short) dB_fixed(ue->measurements.rx_power_tot[eNB_id]);
} //eNB_id
eNB_id=0;
if (ue->transmission_mode[0]==4 || ue->transmission_mode[0]==3){
if (rank_adaptation == 1)
rank_tm3_tm4 = rank_estimation_tm3_tm4(&ue->common_vars.common_vars_rx_data_per_thread[subframe&0x1].dl_ch_estimates[eNB_id][0][4],
&ue->common_vars.common_vars_rx_data_per_thread[subframe&0x1].dl_ch_estimates[eNB_id][2][4],
&ue->common_vars.common_vars_rx_data_per_thread[subframe&0x1].dl_ch_estimates[eNB_id][1][4],
&ue->common_vars.common_vars_rx_data_per_thread[subframe&0x1].dl_ch_estimates[eNB_id][3][4],
N_RB_DL);
else
rank_tm3_tm4=1;
#ifdef DEBUG_RANK_EST
printf("rank tm3 or tm4 %d\n", rank_tm3_tm4);
#endif
}
if (ue->transmission_mode[eNB_id]!=4 && ue->transmission_mode[eNB_id]!=3)
ue->measurements.rank[eNB_id] = 0;
else
ue->measurements.rank[eNB_id] = rank_tm3_tm4;
// printf ("tx mode %d\n", ue->transmission_mode[eNB_id]);
// printf ("rank %d\n", ue->PHY_measurements.rank[eNB_id]);
// filter to remove jitter
if (ue->init_averaging == 0) {
for (eNB_id = 0; eNB_id < ue->n_connected_eNB; eNB_id++)
ue->measurements.rx_power_avg[eNB_id] = (int)
(((k1*((long long int)(ue->measurements.rx_power_avg[eNB_id]))) +
(k2*((long long int)(ue->measurements.rx_power_tot[eNB_id]))))>>10);
//LOG_I(PHY,"Noise Power Computation: k1 %d k2 %d n0 avg %d n0 tot %d\n", k1, k2, ue->measurements.n0_power_avg,
// ue->measurements.n0_power_tot);
ue->measurements.n0_power_avg = (int)
(((k1*((long long int) (ue->measurements.n0_power_avg))) +
(k2*((long long int) (ue->measurements.n0_power_tot))))>>10);
} else {
for (eNB_id = 0; eNB_id < ue->n_connected_eNB; eNB_id++)
ue->measurements.rx_power_avg[eNB_id] = ue->measurements.rx_power_tot[eNB_id];
ue->measurements.n0_power_avg = ue->measurements.n0_power_tot;
ue->init_averaging = 0;
}
for (eNB_id = 0; eNB_id < ue->n_connected_eNB; eNB_id++) {
ue->measurements.rx_power_avg_dB[eNB_id] = dB_fixed( ue->measurements.rx_power_avg[eNB_id]);
ue->measurements.wideband_cqi_tot[eNB_id] = dB_fixed2(ue->measurements.rx_power_tot[eNB_id],ue->measurements.n0_power_tot);
ue->measurements.wideband_cqi_avg[eNB_id] = dB_fixed2(ue->measurements.rx_power_avg[eNB_id],ue->measurements.n0_power_avg);
ue->measurements.rx_rssi_dBm[eNB_id] = ue->measurements.rx_power_avg_dB[eNB_id] - ue->rx_total_gain_dB;
#ifdef DEBUG_MEAS_UE
LOG_I(PHY,"[eNB %d] Subframe %d, RSSI %d dBm, RSSI (digital) %d dB, WBandCQI %d dB, rxPwrAvg %d, n0PwrAvg %d\n",
eNB_id,
subframe,
ue->measurements.rx_rssi_dBm[eNB_id],
ue->measurements.rx_power_avg_dB[eNB_id],
ue->measurements.wideband_cqi_avg[eNB_id],
ue->measurements.rx_power_avg[eNB_id],
ue->measurements.n0_power_tot);
#endif
}
ue->measurements.n0_power_avg_dB = dB_fixed( ue->measurements.n0_power_avg);
for (eNB_id = 0; eNB_id < ue->n_connected_eNB; eNB_id++) {
if (frame_parms->nb_antenna_ports_eNB!=1) {
// cqi/pmi information
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
dl_ch0 = &ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[subframe]].dl_ch_estimates[eNB_id][aarx][4];
dl_ch1 = &ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[subframe]].dl_ch_estimates[eNB_id][2+aarx][4];
for (subband=0; subband<nb_subbands; subband++) {
// cqi
if (aarx==0)
ue->measurements.subband_cqi_tot[eNB_id][subband]=0;
if ((subband<(nb_subbands-1))||(N_RB_DL==6)) {
/*for (i=0;i<48;i++)
msg("subband %d (%d) : %d,%d\n",subband,i,((short *)dl_ch0)[2*i],((short *)dl_ch0)[1+(2*i)]);
*/
ue->measurements.subband_cqi[eNB_id][aarx][subband] =
(signal_energy_nodc(dl_ch0,subband_size) + signal_energy_nodc(dl_ch1,subband_size));
if ( ue->measurements.subband_cqi[eNB_id][aarx][subband] < 0)
ue->measurements.subband_cqi[eNB_id][aarx][subband]=0;
/*
else
ue->measurements.subband_cqi[eNB_id][aarx][subband]-=ue->measurements.n0_power[aarx];
*/
ue->measurements.subband_cqi_tot[eNB_id][subband] += ue->measurements.subband_cqi[eNB_id][aarx][subband];
ue->measurements.subband_cqi_dB[eNB_id][aarx][subband] = dB_fixed2(ue->measurements.subband_cqi[eNB_id][aarx][subband],
ue->measurements.n0_power[aarx]);
} else { // this is for the last subband which is smaller in size
// for (i=0;i<12;i++)
// printf("subband %d (%d) : %d,%d\n",subband,i,((short *)dl_ch0)[2*i],((short *)dl_ch0)[1+(2*i)]);
ue->measurements.subband_cqi[eNB_id][aarx][subband] = (signal_energy_nodc(dl_ch0,last_subband_size) +
signal_energy_nodc(dl_ch1,last_subband_size)); // - ue->measurements.n0_power[aarx];
ue->measurements.subband_cqi_tot[eNB_id][subband] += ue->measurements.subband_cqi[eNB_id][aarx][subband];
ue->measurements.subband_cqi_dB[eNB_id][aarx][subband] = dB_fixed2(ue->measurements.subband_cqi[eNB_id][aarx][subband],
ue->measurements.n0_power[aarx]);
}
dl_ch1+=subband_size;
dl_ch0+=subband_size;
// msg("subband_cqi[%d][%d][%d] => %d (%d dB)\n",eNB_id,aarx,subband,ue->measurements.subband_cqi[eNB_id][aarx][subband],ue->measurements.subband_cqi_dB[eNB_id][aarx][subband]);
}
}
for (subband=0; subband<nb_subbands; subband++) {
ue->measurements.subband_cqi_tot_dB[eNB_id][subband] = dB_fixed2(ue->measurements.subband_cqi_tot[eNB_id][subband],ue->measurements.n0_power_tot);
// msg("subband_cqi_tot[%d][%d] => %d dB (n0 %d)\n",eNB_id,subband,ue->measurements.subband_cqi_tot_dB[eNB_id][subband],ue->measurements.n0_power_tot);
}
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
//printf("aarx=%d", aarx);
// skip the first 4 RE due to interpolation filter length of 5 (not possible to skip 5 due to 128i alignment, must be multiple of 128bit)
#if defined(__x86_64__) || defined(__i386__)
__m128i pmi128_re,pmi128_im,mmtmpPMI0,mmtmpPMI1 /* ,mmtmpPMI2,mmtmpPMI3 */ ;
dl_ch0_128 = (__m128i *)&ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[subframe]].dl_ch_estimates[eNB_id][aarx][4];
dl_ch1_128 = (__m128i *)&ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[subframe]].dl_ch_estimates[eNB_id][2+aarx][4];
#elif defined(__arm__)
int32x4_t pmi128_re,pmi128_im,mmtmpPMI0,mmtmpPMI1,mmtmpPMI0b,mmtmpPMI1b;
dl_ch0_128 = (int16x8_t *)&ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[subframe]].dl_ch_estimates[eNB_id][aarx][4];
dl_ch1_128 = (int16x8_t *)&ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[subframe]].dl_ch_estimates[eNB_id][2+aarx][4];
#endif
for (subband=0; subband<nb_subbands; subband++) {
// pmi
#if defined(__x86_64__) || defined(__i386__)
pmi128_re = _mm_xor_si128(pmi128_re,pmi128_re);
pmi128_im = _mm_xor_si128(pmi128_im,pmi128_im);
#elif defined(__arm__)
pmi128_re = vdupq_n_s32(0);
pmi128_im = vdupq_n_s32(0);
#endif
// limit is the number of groups of 4 REs in a subband (12 = 4 RBs, 3 = 1 RB)
// for 5 MHz channelization, there are 7 subbands, 6 of size 4 RBs and 1 of size 1 RB
if ((N_RB_DL==6) || (subband<(nb_subbands-1)))
limit = subband_size>>2;
else
limit = last_subband_size>>2;
for (i=0; i<limit; i++) {
#if defined(__x86_64__) || defined(__i386__)
mmtmpPMI0 = _mm_xor_si128(mmtmpPMI0,mmtmpPMI0);
mmtmpPMI1 = _mm_xor_si128(mmtmpPMI1,mmtmpPMI1);
// For each RE in subband perform ch0 * conj(ch1)
// multiply by conjugated channel
// print_ints("ch0",&dl_ch0_128[0]);
// print_ints("ch1",&dl_ch1_128[0]);
mmtmpPMI0 = _mm_madd_epi16(dl_ch0_128[0],dl_ch1_128[0]);
// print_ints("re",&mmtmpPMI0);
mmtmpPMI1 = _mm_shufflelo_epi16(dl_ch1_128[0],_MM_SHUFFLE(2,3,0,1));
// print_ints("_mm_shufflelo_epi16",&mmtmpPMI1);
mmtmpPMI1 = _mm_shufflehi_epi16(mmtmpPMI1,_MM_SHUFFLE(2,3,0,1));
// print_ints("_mm_shufflehi_epi16",&mmtmpPMI1);
mmtmpPMI1 = _mm_sign_epi16(mmtmpPMI1,*(__m128i*)&conjugate[0]);
// print_ints("_mm_sign_epi16",&mmtmpPMI1);
mmtmpPMI1 = _mm_madd_epi16(mmtmpPMI1,dl_ch0_128[0]);
// print_ints("mm_madd_epi16",&mmtmpPMI1);
// mmtmpPMI1 contains imag part of 4 consecutive outputs (32-bit)
pmi128_re = _mm_add_epi32(pmi128_re,mmtmpPMI0);
// print_ints(" pmi128_re 0",&pmi128_re);
pmi128_im = _mm_add_epi32(pmi128_im,mmtmpPMI1);
// print_ints(" pmi128_im 0 ",&pmi128_im);
/* mmtmpPMI0 = _mm_xor_si128(mmtmpPMI0,mmtmpPMI0);
mmtmpPMI1 = _mm_xor_si128(mmtmpPMI1,mmtmpPMI1);
mmtmpPMI0 = _mm_madd_epi16(dl_ch0_128[1],dl_ch1_128[1]);
// print_ints("re",&mmtmpPMI0);
mmtmpPMI1 = _mm_shufflelo_epi16(dl_ch1_128[1],_MM_SHUFFLE(2,3,0,1));
// print_ints("_mm_shufflelo_epi16",&mmtmpPMI1);
mmtmpPMI1 = _mm_shufflehi_epi16(mmtmpPMI1,_MM_SHUFFLE(2,3,0,1));
// print_ints("_mm_shufflehi_epi16",&mmtmpPMI1);
mmtmpPMI1 = _mm_sign_epi16(mmtmpPMI1,*(__m128i*)&conjugate);
// print_ints("_mm_sign_epi16",&mmtmpPMI1);
mmtmpPMI1 = _mm_madd_epi16(mmtmpPMI1,dl_ch0_128[1]);
// print_ints("mm_madd_epi16",&mmtmpPMI1);
// mmtmpPMI1 contains imag part of 4 consecutive outputs (32-bit)
pmi128_re = _mm_add_epi32(pmi128_re,mmtmpPMI0);
// print_ints(" pmi128_re 1",&pmi128_re);
pmi128_im = _mm_add_epi32(pmi128_im,mmtmpPMI1);
//print_ints(" pmi128_im 1 ",&pmi128_im);*/
#elif defined(__arm__)
mmtmpPMI0 = vmull_s16(((int16x4_t*)dl_ch0_128)[0], ((int16x4_t*)dl_ch1_128)[0]);
mmtmpPMI1 = vmull_s16(((int16x4_t*)dl_ch0_128)[1], ((int16x4_t*)dl_ch1_128)[1]);
pmi128_re = vqaddq_s32(pmi128_re,vcombine_s32(vpadd_s32(vget_low_s32(mmtmpPMI0),vget_high_s32(mmtmpPMI0)),vpadd_s32(vget_low_s32(mmtmpPMI1),vget_high_s32(mmtmpPMI1))));
mmtmpPMI0b = vmull_s16(vrev32_s16(vmul_s16(((int16x4_t*)dl_ch0_128)[0],*(int16x4_t*)conjugate)), ((int16x4_t*)dl_ch1_128)[0]);
mmtmpPMI1b = vmull_s16(vrev32_s16(vmul_s16(((int16x4_t*)dl_ch0_128)[1],*(int16x4_t*)conjugate)), ((int16x4_t*)dl_ch1_128)[1]);
pmi128_im = vqaddq_s32(pmi128_im,vcombine_s32(vpadd_s32(vget_low_s32(mmtmpPMI0b),vget_high_s32(mmtmpPMI0b)),vpadd_s32(vget_low_s32(mmtmpPMI1b),vget_high_s32(mmtmpPMI1b))));
#endif
dl_ch0_128++;
dl_ch1_128++;
}
ue->measurements.subband_pmi_re[eNB_id][subband][aarx] = (((int *)&pmi128_re)[0] + ((int *)&pmi128_re)[1] + ((int *)&pmi128_re)[2] + ((int *)&pmi128_re)[3])>>2;
ue->measurements.subband_pmi_im[eNB_id][subband][aarx] = (((int *)&pmi128_im)[0] + ((int *)&pmi128_im)[1] + ((int *)&pmi128_im)[2] + ((int *)&pmi128_im)[3])>>2;
ue->measurements.wideband_pmi_re[eNB_id][aarx] += ue->measurements.subband_pmi_re[eNB_id][subband][aarx];
ue->measurements.wideband_pmi_im[eNB_id][aarx] += ue->measurements.subband_pmi_im[eNB_id][subband][aarx];
} // subband loop
} // rx antenna loop
} // if frame_parms->mode1_flag == 0
else {
// cqi information only for mode 1
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
dl_ch0 = &ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[subframe]].dl_ch_estimates[eNB_id][aarx][4];
for (subband=0; subband<7; subband++) {
// cqi
if (aarx==0)
ue->measurements.subband_cqi_tot[eNB_id][subband]=0;
if (subband<6) {
// for (i=0;i<48;i++)
// printf("subband %d (%d) : %d,%d\n",subband,i,((short *)dl_ch0)[2*i],((short *)dl_ch0)[1+(2*i)]);
ue->measurements.subband_cqi[eNB_id][aarx][subband] =
(signal_energy_nodc(dl_ch0,48) ) - ue->measurements.n0_power[aarx];
ue->measurements.subband_cqi_tot[eNB_id][subband] += ue->measurements.subband_cqi[eNB_id][aarx][subband];
ue->measurements.subband_cqi_dB[eNB_id][aarx][subband] = dB_fixed2(ue->measurements.subband_cqi[eNB_id][aarx][subband],
ue->measurements.n0_power[aarx]);
} else {
// for (i=0;i<12;i++)
// printf("subband %d (%d) : %d,%d\n",subband,i,((short *)dl_ch0)[2*i],((short *)dl_ch0)[1+(2*i)]);
ue->measurements.subband_cqi[eNB_id][aarx][subband] = (signal_energy_nodc(dl_ch0,12) ) - ue->measurements.n0_power[aarx];
ue->measurements.subband_cqi_tot[eNB_id][subband] += ue->measurements.subband_cqi[eNB_id][aarx][subband];
ue->measurements.subband_cqi_dB[eNB_id][aarx][subband] = dB_fixed2(ue->measurements.subband_cqi[eNB_id][aarx][subband],
ue->measurements.n0_power[aarx]);
}
dl_ch1+=48;
// msg("subband_cqi[%d][%d][%d] => %d (%d dB)\n",eNB_id,aarx,subband,ue->measurements.subband_cqi[eNB_id][aarx][subband],ue->measurements.subband_cqi_dB[eNB_id][aarx][subband]);
}
}
for (subband=0; subband<nb_subbands; subband++) {
ue->measurements.subband_cqi_tot_dB[eNB_id][subband] = dB_fixed2(ue->measurements.subband_cqi_tot[eNB_id][subband],ue->measurements.n0_power_tot);
}
}
//ue->measurements.rank[eNB_id] = 0;
for (i=0; i<nb_subbands; i++) {
ue->measurements.selected_rx_antennas[eNB_id][i] = 0;
if (frame_parms->nb_antennas_rx>1) {
if (ue->measurements.subband_cqi_dB[eNB_id][0][i] >= ue->measurements.subband_cqi_dB[eNB_id][1][i])
ue->measurements.selected_rx_antennas[eNB_id][i] = 0;
else
ue->measurements.selected_rx_antennas[eNB_id][i] = 1;
} else
ue->measurements.selected_rx_antennas[eNB_id][i] = 0;
}
// if(eNB_id==0)
// printf("in lte_ue_measurements: selected rx_antenna[eNB_id==0]:%u\n", ue->measurements.selected_rx_antennas[eNB_id][i]);
} // eNB_id loop
#if defined(__x86_64__) || defined(__i386__)
_mm_empty();
_m_empty();
#endif
}
void lte_ue_measurements_emul(PHY_VARS_UE *ue,uint8_t subframe,uint8_t eNB_id)
{
LOG_D(PHY,"EMUL UE lte_ue_measurements_emul subframe %d, eNB_id %d\n",subframe,eNB_id);
}
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