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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.

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This commit is contained in:
gauthier
2016-01-06 11:37:26 +01:00
parent cf8645d8cd
commit e44146b708
11 changed files with 67 additions and 54 deletions
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openair1/PHY/LTE_ESTIMATION/lte_eNB_measurements.c
+1 -1
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@@ -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];
}
openair1/PHY/LTE_TRANSPORT/print_stats.c
+5 -1
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@@ -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");
/*
openair1/PHY/LTE_TRANSPORT/pucch.c
+2 -2
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@@ -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;
openair1/PHY/impl_defs_top.h
+8 -8
View File
@@ -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;
openair2/LAYER2/MAC/defs.h
+2 -1
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@@ -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 {
openair2/LAYER2/MAC/eNB_scheduler_dlsch.c
+4 -32
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@@ -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
openair2/LAYER2/MAC/eNB_scheduler_primitives.c
+1
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@@ -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
openair2/LAYER2/MAC/eNB_scheduler_ulsch.c
+1 -3
View File
@@ -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 */
openair2/LAYER2/MAC/pre_processor.c
+37
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@@ -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;
targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band7.tm1.100PRB.usrpb210.conf
+5 -5
View File
@@ -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
};
targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band7.tm1.50PRB.usrpb210.conf
+1 -1
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@@ -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";