maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

changes for link adaptation and abstraction

Browse Source 
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4150 818b1a75-f10b-46b9-bf7c-635c3b92a50f
This commit is contained in:
latif
2013-09-17 07:45:13 +00:00
parent c5196908d5
commit 2d68cc0f68
11 changed files with 166 additions and 292 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair2/LAYER2/MAC/eNB_scheduler.c
+3 -89
View File
@@ -58,12 +58,6 @@
//#include "LAYER2/MAC/pre_processor.c"
#include "pdcp.h"
double snr_mcs[28]={-4.1130, -3.3830, -2.8420, -2.0480, -1.3230, -0.6120, 0.1080, 0.977, 1.7230, 2.7550, 3.1960, 3.8080, 4.6870, 5.6840, 6.6550, 7.7570, 8.3730, 9.3040, 9.5990, 10.9020, 11.7220, 12.5950, 13.4390, 14.8790, 15.8800, 16.4800, 17.8690, 18.7690};
int cqi_mcs[3][16] = {{0, 0, 0, 2, 4, 6, 8, 11, 13, 15, 18, 20, 22, 25, 27, 27},{0, 0, 0, 2, 4, 6, 8, 11, 13, 15, 18, 20, 22, 25, 27, 27},{0, 0, 0, 2, 4, 6, 8, 11, 13, 15, 18, 19, 22, 24, 26, 27}};
double cqi_snr[16] = {-8, -7, -6.08, -5.252, -3.956, -2.604, -1.107, 0.87, 2.599, 4.79, 6.716, 8, 10.593, 13.286, 15.745, 18.5};
double snr_tm6=0;
#define ENABLE_MAC_PAYLOAD_DEBUG
#define DEBUG_eNB_SCHEDULER 1
//#define DEBUG_HEADER_PARSING 1
@@ -3473,90 +3467,10 @@ void schedule_ue_spec(unsigned char Mod_id,
//eNB_UE_stats->dlsch_mcs1 = openair_daq_vars.target_ue_dl_mcs;
// int flag_LA=0;
//printf("CQI %d\n",eNB_UE_stats->DL_cqi[0]);
if (flag_LA==0){
switch(eNB_UE_stats->DL_cqi[0]) {
case 0:
eNB_UE_stats->dlsch_mcs1 = 0;
break;
case 1:
eNB_UE_stats->dlsch_mcs1 = 0;
break;
case 2:
eNB_UE_stats->dlsch_mcs1 = 0;
break;
case 3:
eNB_UE_stats->dlsch_mcs1 = 2;
break;
case 4:
eNB_UE_stats->dlsch_mcs1 = 4;
break;
case 5:
eNB_UE_stats->dlsch_mcs1 = 6;
break;
case 6:
eNB_UE_stats->dlsch_mcs1 = 8;
break;
case 7:
eNB_UE_stats->dlsch_mcs1 = 11;
break;
case 8:
eNB_UE_stats->dlsch_mcs1 = 13;
break;
case 9:
eNB_UE_stats->dlsch_mcs1 = 16;
break;
case 10:
eNB_UE_stats->dlsch_mcs1 = 18;
break;
case 11:
eNB_UE_stats->dlsch_mcs1 = 20;
break;
case 12:
eNB_UE_stats->dlsch_mcs1 = 22;
break;
case 13:
eNB_UE_stats->dlsch_mcs1 = 22;//25
break;
case 14:
eNB_UE_stats->dlsch_mcs1 = 22;//27
break;
case 15:
eNB_UE_stats->dlsch_mcs1 = 22;//28
break;
default:
LOG_E(MAC,"Invalid CQI");
exit(-1);
}
}
else {
// begin CQI to MCS mapping
if(mac_xface->get_transmission_mode(Mod_id,rnti)==1)
eNB_UE_stats->dlsch_mcs1 = cqi_mcs[0][eNB_UE_stats->DL_cqi[0]];
else
if(mac_xface->get_transmission_mode(Mod_id,rnti)==2)
eNB_UE_stats->dlsch_mcs1 = cqi_mcs[1][eNB_UE_stats->DL_cqi[0]];
else
if(mac_xface->get_transmission_mode(Mod_id,rnti)==6 || mac_xface->get_transmission_mode(Mod_id,rnti)==5)
eNB_UE_stats->dlsch_mcs1 = cqi_mcs[2][eNB_UE_stats->DL_cqi[0]];
// end CQI Mapping
// if MUMIMO is enabled with two UEs then adjust the CQI and MCS mapping
if(mac_xface->get_transmission_mode(Mod_id,rnti)==5 && dl_pow_off[UE_id]==0){
snr_tm6 = cqi_snr[eNB_UE_stats->DL_cqi[0]];
if (snr_tm6<snr_mcs[0])
eNB_UE_stats->dlsch_mcs1 = 0;
else
if(snr_tm6>snr_mcs[27])
eNB_UE_stats->dlsch_mcs1 = 27;
else
for (i=0;i<27;i++){
if(snr_tm6 > snr_mcs[i] && snr_tm6 < snr_mcs[i+1])
eNB_UE_stats->dlsch_mcs1 = i;
}
}
}
if(eNB_UE_stats->dlsch_mcs1>22)
eNB_UE_stats->dlsch_mcs1 = cqi_to_mcs[eNB_UE_stats->DL_cqi[0]];
if(eNB_UE_stats->dlsch_mcs1>22)
eNB_UE_stats->dlsch_mcs1=22;