Commit e44146b7 authored by gauthier's avatar gauthier

handling of timing advance is improved. MAC retrieves timing advance from phy...

handling of timing advance is improved. MAC retrieves timing advance from phy once prior to DL scheduling and clears the statistic in PHY. A timer for controlling the timing advance periodicity was introduced.
parent cf8645d8
......@@ -107,7 +107,7 @@ void lte_eNB_I0_measurements(PHY_VARS_eNB *phy_vars_eNB,
// + (k2*phy_measurements->n0_subband_power[aarx][rb]));
phy_measurements->n0_subband_power_dB[aarx][rb] = dB_fixed(phy_measurements->n0_subband_power[aarx][rb]);
// printf("subframe %d (%d): eNb %d, aarx %d, rb %d len %d: energy %d (%d dB)\n",subframe,offset,eNB_id,aarx,rb,len,signal_energy_nodc(ul_ch,len),
// printf("subframe %d (%d): eNb %d, aarx %d, rb %d len %d: energy %d (%d dB)\n",subframe,offset,eNB_id,aarx,rb,len,signal_energy_nodc(ul_ch,len),
// phy_measurements->n0_subband_power_dB[aarx][rb]);
n0_power_tot += phy_measurements->n0_subband_power[aarx][rb];
}
......
......@@ -577,10 +577,14 @@ int dump_eNB_stats(PHY_VARS_eNB *phy_vars_eNB, char* buffer, int length)
phy_vars_eNB->rb_mask_ul[0],
phy_vars_eNB->rb_mask_ul[1],phy_vars_eNB->rb_mask_ul[2],phy_vars_eNB->rb_mask_ul[3]);
for (i=0; i<phy_vars_eNB->lte_frame_parms.N_RB_UL; i++)
for (i=0; i<phy_vars_eNB->lte_frame_parms.N_RB_UL; i++) {
len += sprintf(&buffer[len],"%4d ",
phy_vars_eNB->PHY_measurements_eNB[eNB].n0_subband_power_tot_dBm[i]);
if ((i>0) && ((i%25) == 0))
len += sprintf(&buffer[len],"\n ",
phy_vars_eNB->PHY_measurements_eNB[eNB].n0_subband_power_tot_dBm[i]);
}
len += sprintf(&buffer[len],"\n");
len += sprintf(&buffer[len],"\n[eNB PROC] PERFORMANCE PARAMETERS\n");
/*
......
......@@ -786,7 +786,7 @@ uint32_t rx_pucch(PHY_VARS_eNB *phy_vars_eNB,
#endif
#ifdef DEBUG_PUCCH_RX
LOG_D(PHY,"[eNB] PUCCH fmt1: stat_max : %d, sigma2_dB %d (%d, %d), phase_max : %d\n",dB_fixed(stat_max),sigma2_dB,phy_vars_eNB->PHY_measurements_eNB[0].n0_subband_power_tot_dBm[6],pucch1_thres,phase_max);
LOG_I(PHY,"[eNB] PUCCH fmt1: stat_max : %d, sigma2_dB %d (%d, %d), phase_max : %d\n",dB_fixed(stat_max),sigma2_dB,phy_vars_eNB->PHY_measurements_eNB[0].n0_subband_power_tot_dBm[6],pucch1_thres,phase_max);
#endif
phy_vars_eNB->pucch1_stats[UE_id][(subframe<<10)+phy_vars_eNB->pucch1_stats_cnt[UE_id][subframe]] = stat_max;
......@@ -807,7 +807,7 @@ uint32_t rx_pucch(PHY_VARS_eNB *phy_vars_eNB,
if (sigma2_dB<(dB_fixed(stat_max)-pucch1_thres)) {
*payload = 1;
*Po_PUCCH1_above = ((*Po_PUCCH1_above<<9) + (stat_max<<9)+1024)>>10;
// LOG_I(PHY,"[eNB] PUCCH fmt1: stat_max : %d, sigma2_dB %d (%d, %d), phase_max : %d\n",dB_fixed(stat_max),sigma2_dB,phy_vars_eNB->PHY_measurements_eNB[0].n0_power_tot_dBm,pucch1_thres,phase_max);
//LOG_I(PHY,"[eNB] PUCCH fmt1: stat_max : %d, sigma2_dB %d (%d, %d), phase_max : %d\n",dB_fixed(stat_max),sigma2_dB,phy_vars_eNB->PHY_measurements_eNB[0].n0_power_tot_dBm,pucch1_thres,phase_max);
}
else {
*payload = 0;
......
......@@ -470,13 +470,13 @@ typedef struct {
//! estimated avg noise power (dB)
short n0_power_tot_dBm;
//! estimated avg noise power per RB per RX ant (lin)
unsigned short n0_subband_power[NB_ANTENNAS_RX][25];
unsigned short n0_subband_power[NB_ANTENNAS_RX][100];
//! estimated avg noise power per RB per RX ant (dB)
unsigned short n0_subband_power_dB[NB_ANTENNAS_RX][25];
unsigned short n0_subband_power_dB[NB_ANTENNAS_RX][100];
//! estimated avg noise power per RB (dB)
short n0_subband_power_tot_dB[25];
short n0_subband_power_tot_dB[100];
//! estimated avg noise power per RB (dBm)
short n0_subband_power_tot_dBm[25];
short n0_subband_power_tot_dBm[100];
// eNB measurements (per user)
//! estimated received spatial signal power (linear)
unsigned int rx_spatial_power[NUMBER_OF_UE_MAX][2][2];
......@@ -496,13 +496,13 @@ typedef struct {
/// Wideband CQI (sum of all RX antennas, in dB)
char wideband_cqi_tot[NUMBER_OF_UE_MAX];
/// Subband CQI per RX antenna and RB (= SINR)
int subband_cqi[NUMBER_OF_UE_MAX][NB_ANTENNAS_RX][25];
int subband_cqi[NUMBER_OF_UE_MAX][NB_ANTENNAS_RX][100];
/// Total Subband CQI and RB (= SINR)
int subband_cqi_tot[NUMBER_OF_UE_MAX][25];
int subband_cqi_tot[NUMBER_OF_UE_MAX][100];
/// Subband CQI in dB and RB (= SINR dB)
int subband_cqi_dB[NUMBER_OF_UE_MAX][NB_ANTENNAS_RX][25];
int subband_cqi_dB[NUMBER_OF_UE_MAX][NB_ANTENNAS_RX][100];
/// Total Subband CQI and RB
int subband_cqi_tot_dB[NUMBER_OF_UE_MAX][25];
int subband_cqi_tot_dB[NUMBER_OF_UE_MAX][100];
} PHY_MEASUREMENTS_eNB;
......
......@@ -736,7 +736,8 @@ typedef struct {
uint8_t dl_pow_off[MAX_NUM_CCs];
uint16_t pre_nb_available_rbs[MAX_NUM_CCs];
unsigned char rballoc_sub_UE[MAX_NUM_CCs][N_RBG_MAX];
uint16_t ta_timer;
int16_t ta_update;
} UE_sched_ctrl;
/*! \brief eNB template for the Random access information */
typedef struct {
......
......@@ -447,7 +447,6 @@ schedule_ue_spec(
// uint16_t pre_nb_available_rbs[MAX_NUM_CCs][NUMBER_OF_UE_MAX];
int mcs;
uint16_t min_rb_unit[MAX_NUM_CCs];
short ta_update = 0;
eNB_MAC_INST *eNB = &eNB_mac_inst[module_idP];
UE_list_t *UE_list = &eNB->UE_list;
LTE_DL_FRAME_PARMS *frame_parms[MAX_NUM_CCs];
......@@ -804,29 +803,7 @@ schedule_ue_spec(
// check first for RLC data on DCCH
// add the length for all the control elements (timing adv, drx, etc) : header + payload
//#ifndef EXMIMO_IOT
// to be checked by RK, NN, FK
uint8_t update_TA=4;
switch (frame_parms[CC_id]->N_RB_DL) {
case 6:
update_TA = 1;
break;
case 25:
update_TA = 4;
break;
case 50:
update_TA = 8;
break;
case 100:
update_TA = 16;
break;
}
ta_len = ((eNB_UE_stats->timing_advance_update/update_TA)!=0) ? 2 : 0;
ta_len = (ue_sched_ctl->ta_update!=0) ? 2 : 0;
header_len_dcch = 2; // 2 bytes DCCH SDU subheader
......@@ -1074,11 +1051,6 @@ schedule_ue_spec(
post_padding = TBS - sdu_length_total - header_len_dcch - header_len_dtch - ta_len ; // 1 is for the postpadding header
}
//#ifndef EXMIMO_IOT
ta_update = eNB_UE_stats->timing_advance_update/update_TA;
/*#else
ta_update = 0;
#endif*/
offset = generate_dlsch_header((unsigned char*)UE_list->DLSCH_pdu[CC_id][0][UE_id].payload[0],
// offset = generate_dlsch_header((unsigned char*)eNB_mac_inst[0].DLSCH_pdu[0][0].payload[0],
......@@ -1086,17 +1058,17 @@ schedule_ue_spec(
sdu_lengths, //
sdu_lcids,
255, // no drx
ta_update, // timing advance
ue_sched_ctl->ta_update, // timing advance
NULL, // contention res id
padding,
post_padding);
//#ifdef DEBUG_eNB_SCHEDULER
if (ta_update) {
if (ue_sched_ctl->ta_update) {
LOG_I(MAC,
"[eNB %d][DLSCH] Frame %d Generate header for UE_id %d on CC_id %d: sdu_length_total %d, num_sdus %d, sdu_lengths[0] %d, sdu_lcids[0] %d => payload offset %d,timing advance value : %d, padding %d,post_padding %d,(mcs %d, TBS %d, nb_rb %d),header_dcch %d, header_dtch %d\n",
module_idP,frameP, UE_id, CC_id, sdu_length_total,num_sdus,sdu_lengths[0],sdu_lcids[0],offset,
ta_update,padding,post_padding,mcs,TBS,nb_rb,header_len_dcch,header_len_dtch);
ue_sched_ctl->ta_update,padding,post_padding,mcs,TBS,nb_rb,header_len_dcch,header_len_dtch);
}
//#endif
......
......@@ -267,6 +267,7 @@ int add_new_ue(module_id_t mod_idP, int cc_idP, rnti_t rntiP,int harq_pidP)
UE_list->ordered_ULCCids[0][UE_id] = cc_idP;
UE_list->num_UEs++;
UE_list->active[UE_id] = TRUE;
memset((void*)&UE_list->UE_sched_ctrl[UE_id],0,sizeof(UE_sched_ctrl));
for (j=0; j<8; j++) {
UE_list->UE_template[cc_idP][UE_id].oldNDI[j] = (j==0)?1:0; // 1 because first transmission is with format1A (Msg4) for harq_pid 0
......
......@@ -126,10 +126,8 @@ void rx_sdu(
break;
case CRNTI:
LOG_D(MAC, "[eNB %d] CC_id %d MAC CE_LCID %d (ce %d/%d): Received CRNTI %2.2x%2.2x\n",
enb_mod_idP, CC_idP, rx_ces[i], i,num_ce, payload_ptr[0], payload_ptr[1]);
UE_id = find_UE_id(enb_mod_idP,(((uint16_t)payload_ptr[0])<<8) + payload_ptr[1]);
LOG_I(MAC, "[eNB %d] CC_id %d MAC CE_LCID %d : CRNTI %x (UE_id %d) in Msg3\n",enb_mod_idP, CC_idP, rx_ces[i], (((uint16_t)payload_ptr[0])<<8) + payload_ptr[1],UE_id);
LOG_I(MAC, "[eNB %d] CC_id %d MAC CE_LCID %d (ce %d/%d): CRNTI %x (UE_id %d) in Msg3\n",enb_mod_idP, CC_idP, rx_ces[i], i,num_ce,(((uint16_t)payload_ptr[0])<<8) + payload_ptr[1],UE_id);
payload_ptr+=2;
/* we don't process this CE yet */
......
......@@ -754,13 +754,50 @@ void dlsch_scheduler_pre_processor_reset (int module_idP,
int subframe05_limit=0;
int sf05_upper=-1,sf05_lower=-1;
#endif
LTE_eNB_UE_stats *eNB_UE_stats = mac_xface->get_eNB_UE_stats(module_idP,CC_id,rnti);
// initialize harq_pid and round
mac_xface->get_ue_active_harq_pid(module_idP,CC_id,rnti,
frameP,subframeP,
&ue_sched_ctl->harq_pid[CC_id],
&ue_sched_ctl->round[CC_id],
0);
if (ue_sched_ctl->ta_timer == 0) {
// WE SHOULD PROTECT the eNB_UE_stats with a mutex here ...
ue_sched_ctl->ta_timer = 20; // wait 20 subframes before taking TA measurement from PHY
switch (PHY_vars_eNB_g[module_idP][CC_id]->lte_frame_parms.N_RB_DL) {
case 6:
ue_sched_ctl->ta_update = eNB_UE_stats->timing_advance_update;
break;
case 15:
ue_sched_ctl->ta_update = eNB_UE_stats->timing_advance_update/2;
break;
case 25:
ue_sched_ctl->ta_update = eNB_UE_stats->timing_advance_update/4;
break;
case 50:
ue_sched_ctl->ta_update = eNB_UE_stats->timing_advance_update/8;
break;
case 75:
ue_sched_ctl->ta_update = eNB_UE_stats->timing_advance_update/12;
break;
case 100:
ue_sched_ctl->ta_update = eNB_UE_stats->timing_advance_update/16;
break;
}
// clear the update in case PHY does not have a new measurement after timer expiry
eNB_UE_stats->timing_advance_update = 0;
}
else {
ue_sched_ctl->ta_timer--;
ue_sched_ctl->ta_update =0; // don't trigger a timing advance command
}
nb_rbs_required[CC_id][UE_id]=0;
ue_sched_ctl->pre_nb_available_rbs[CC_id] = 0;
ue_sched_ctl->dl_pow_off[CC_id] = 2;
......
......@@ -17,7 +17,7 @@ eNBs =
mobile_country_code = "208";
mobile_network_code = "92";
mobile_network_code = "93";
////////// Physical parameters:
......@@ -36,7 +36,7 @@ eNBs =
nb_antennas_tx = 1;
nb_antennas_rx = 1;
tx_gain = 90;
rx_gain = 120;
rx_gain = 125;
prach_root = 0;
prach_config_index = 0;
prach_high_speed = "DISABLE";
......@@ -130,7 +130,7 @@ eNBs =
};
////////// MME parameters:
mme_ip_address = ( { ipv4 = "192.168.13.11";
mme_ip_address = ( { ipv4 = "192.168.12.11";
ipv6 = "192:168:30::17";
active = "yes";
preference = "ipv4";
......@@ -140,10 +140,10 @@ eNBs =
NETWORK_INTERFACES :
{
ENB_INTERFACE_NAME_FOR_S1_MME = "eth0";
ENB_IPV4_ADDRESS_FOR_S1_MME = "192.168.13.10/24";
ENB_IPV4_ADDRESS_FOR_S1_MME = "192.168.12.213/24";
ENB_INTERFACE_NAME_FOR_S1U = "eth0";
ENB_IPV4_ADDRESS_FOR_S1U = "192.168.13.10/24";
ENB_IPV4_ADDRESS_FOR_S1U = "192.168.12.213/24";
ENB_PORT_FOR_S1U = 2152; # Spec 2152
};
......
......@@ -66,7 +66,7 @@ eNBs =
pusch_p0_Nominal = -90;
pusch_alpha = "AL1";
pucch_p0_Nominal = -108;
pucch_p0_Nominal = -96;
msg3_delta_Preamble = 6;
pucch_deltaF_Format1 = "deltaF2";
pucch_deltaF_Format1b = "deltaF3";
......
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