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Split accounting and positioning in pre_processor

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This commit is contained in:
Niccolò Iardella
2018-09-03 18:10:28 +02:00
committed by Robert Schmidt
parent 18ade8812a
commit 490e24560a
3 changed files with 316 additions and 266 deletions
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openair2/LAYER2/MAC/eNB_scheduler_dlsch.c
-1
View File
@@ -700,7 +700,6 @@ schedule_ue_spec(module_id_t module_idP,slice_id_t slice_idP,
slice_idP,
frameP,
subframeP,
N_RBG,
mbsfn_flag);
stop_meas(&eNB->schedule_dlsch_preprocessor);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
openair2/LAYER2/MAC/mac_proto.h
+31 -19
View File
@@ -204,20 +204,6 @@ void mac_UE_out_of_sync_ind(module_id_t module_idP, frame_t frameP,
void clear_nfapi_information(eNB_MAC_INST * eNB, int CC_idP,
frame_t frameP, sub_frame_t subframeP);
void dlsch_scheduler_pre_processor_reset(int module_idP, int UE_id,
uint8_t CC_id,
int frameP,
int subframeP,
int N_RBG,
uint16_t
nb_rbs_required[NFAPI_CC_MAX]
[MAX_MOBILES_PER_ENB],
unsigned char
rballoc_sub[NFAPI_CC_MAX]
[N_RBG_MAX],
unsigned char
MIMO_mode_indicator[NFAPI_CC_MAX]
[N_RBG_MAX]);
// eNB functions
/* \brief This function assigns pre-available RBS to each UE in specified sub-bands before scheduling is done
@@ -229,12 +215,38 @@ void dlsch_scheduler_pre_processor_reset(int module_idP, int UE_id,
void dlsch_scheduler_pre_processor(module_id_t module_idP,
slice_id_t slice_idP,
frame_t frameP,
sub_frame_t subframe,
int N_RBG[NFAPI_CC_MAX],
int *mbsfn_flag);
slice_id_t slice_idP,
frame_t frameP,
sub_frame_t subframe,
int *mbsfn_flag);
void dlsch_scheduler_pre_processor_reset(module_id_t module_idP,
slice_id_t slice_id,
frame_t frameP,
sub_frame_t subframeP,
int min_rb_unit[NFAPI_CC_MAX],
uint16_t nb_rbs_required[NFAPI_CC_MAX][MAX_MOBILES_PER_ENB],
unsigned char rballoc_sub[NFAPI_CC_MAX][N_RBG_MAX],
unsigned char MIMO_mode_indicator[NFAPI_CC_MAX][N_RBG_MAX],
int *mbsfn_flag);
void dlsch_scheduler_pre_processor_accounting(module_id_t Mod_id,
slice_id_t slice_id,
frame_t frameP,
sub_frame_t subframeP,
int min_rb_unit[NFAPI_CC_MAX],
uint8_t total_ue_count[NFAPI_CC_MAX],
uint16_t nb_rbs_required[NFAPI_CC_MAX][MAX_MOBILES_PER_ENB],
uint16_t nb_rbs_required_remaining_1[NFAPI_CC_MAX][MAX_MOBILES_PER_ENB]);
void dlsch_scheduler_pre_processor_positioning(module_id_t Mod_id,
slice_id_t slice_id,
int min_rb_unit[NFAPI_CC_MAX],
uint8_t total_ue_count[NFAPI_CC_MAX],
uint16_t nb_rbs_required[NFAPI_CC_MAX][MAX_MOBILES_PER_ENB],
uint16_t nb_rbs_required_remaining_1[NFAPI_CC_MAX][MAX_MOBILES_PER_ENB],
uint8_t rballoc_sub[NFAPI_CC_MAX][N_RBG_MAX],
uint8_t MIMO_mode_indicator[NFAPI_CC_MAX][N_RBG_MAX]);
void dlsch_scheduler_pre_processor_allocate(module_id_t Mod_id,
int UE_id,
openair2/LAYER2/MAC/pre_processor.c
+285 -246
View File
@@ -191,12 +191,11 @@ store_dlsch_buffer(module_id_t Mod_id, slice_id_t slice_id, frame_t frameP,
// This function returns the estimated number of RBs required by each UE for downlink scheduling
void
assign_rbs_required(module_id_t Mod_id,
slice_id_t slice_id,
frame_t frameP,
sub_frame_t subframe,
uint16_t
nb_rbs_required[NFAPI_CC_MAX][MAX_MOBILES_PER_ENB],
int min_rb_unit[NFAPI_CC_MAX])
slice_id_t slice_id,
frame_t frameP,
sub_frame_t subframe,
int min_rb_unit[NFAPI_CC_MAX],
uint16_t nb_rbs_required[NFAPI_CC_MAX][MAX_MOBILES_PER_ENB])
{
uint16_t TBS = 0;
@@ -517,37 +516,29 @@ void dlsch_scheduler_pre_processor_accounting(module_id_t Mod_id,
slice_id_t slice_id,
frame_t frameP,
sub_frame_t subframeP,
int N_RBG[NFAPI_CC_MAX],
int min_rb_unit[NFAPI_CC_MAX],
uint8_t rballoc_sub[NFAPI_CC_MAX][N_RBG_MAX],
uint8_t slice_allocation_mask[NFAPI_CC_MAX][N_RBG_MAX],
uint8_t MIMO_mode_indicator[NFAPI_CC_MAX][N_RBG_MAX],
uint16_t nb_rbs_required[NFAPI_CC_MAX][MAX_MOBILES_PER_ENB]) {
uint8_t total_ue_count[NFAPI_CC_MAX],
uint16_t nb_rbs_required[NFAPI_CC_MAX][MAX_MOBILES_PER_ENB],
uint16_t nb_rbs_required_remaining_1[NFAPI_CC_MAX][MAX_MOBILES_PER_ENB])
{
int UE_id, CC_id;
int ii, r1;
int i;
rnti_t rnti;
uint8_t harq_pid, round, transmission_mode;
uint8_t total_rbs_used[NFAPI_CC_MAX];
uint8_t total_ue_count[NFAPI_CC_MAX];
uint16_t average_rbs_per_user[NFAPI_CC_MAX];
uint16_t nb_rbs_required_remaining[NFAPI_CC_MAX][MAX_MOBILES_PER_ENB];
uint16_t nb_rbs_required_remaining_1[NFAPI_CC_MAX][MAX_MOBILES_PER_ENB];
int N_RB_DL;
UE_list_t *UE_list = &RC.mac[Mod_id]->UE_list;
UE_sched_ctrl *ue_sched_ctl;
COMMON_channels_t *cc;
// Reset
for (CC_id = 0; CC_id < RC.nb_mac_CC[Mod_id]; CC_id++) {
total_ue_count[CC_id] = 0;
total_rbs_used[CC_id] = 0;
average_rbs_per_user[CC_id] = 0;
for (UE_id = 0; UE_id < MAX_MOBILES_PER_ENB; ++UE_id) {
nb_rbs_required_remaining[CC_id][UE_id] = 0;
}
}
// loop over all active UEs
@@ -559,8 +550,8 @@ void dlsch_scheduler_pre_processor_accounting(module_id_t Mod_id,
if (!ue_slice_membership(UE_id, slice_id))
continue;
for (ii = 0; ii < UE_num_active_CC(UE_list, UE_id); ii++) {
CC_id = UE_list->ordered_CCids[ii][UE_id];
for (i = 0; i < UE_num_active_CC(UE_list, UE_id); i++) {
CC_id = UE_list->ordered_CCids[i][UE_id];
ue_sched_ctl = &UE_list->UE_sched_ctrl[UE_id];
cc = &RC.mac[Mod_id]->common_channels[CC_id];
// TODO Can we use subframe2harqpid() here?
@@ -595,8 +586,8 @@ void dlsch_scheduler_pre_processor_accounting(module_id_t Mod_id,
if (!ue_slice_membership(UE_id, slice_id))
continue;
for (ii = 0; ii < UE_num_active_CC(UE_list, UE_id); ii++) {
CC_id = UE_list->ordered_CCids[ii][UE_id];
for (i = 0; i < UE_num_active_CC(UE_list, UE_id); i++) {
CC_id = UE_list->ordered_CCids[i][UE_id];
// hypothetical assignment
/*
@@ -638,8 +629,8 @@ void dlsch_scheduler_pre_processor_accounting(module_id_t Mod_id,
if (!ue_slice_membership(UE_id, slice_id))
continue;
for (ii = 0; ii < UE_num_active_CC(UE_list, UE_id); ii++) {
CC_id = UE_list->ordered_CCids[ii][UE_id];
for (i = 0; i < UE_num_active_CC(UE_list, UE_id); i++) {
CC_id = UE_list->ordered_CCids[i][UE_id];
ue_sched_ctl = &UE_list->UE_sched_ctrl[UE_id];
cc = &RC.mac[Mod_id]->common_channels[CC_id];
harq_pid = frame_subframe2_dl_harq_pid(cc->tdd_Config,frameP ,subframeP);
@@ -654,15 +645,40 @@ void dlsch_scheduler_pre_processor_accounting(module_id_t Mod_id,
}
}
}
}
void dlsch_scheduler_pre_processor_positioning(module_id_t Mod_id,
slice_id_t slice_id,
int min_rb_unit[NFAPI_CC_MAX],
uint8_t total_ue_count[NFAPI_CC_MAX],
uint16_t nb_rbs_required[NFAPI_CC_MAX][MAX_MOBILES_PER_ENB],
uint16_t nb_rbs_required_remaining_1[NFAPI_CC_MAX][MAX_MOBILES_PER_ENB],
uint8_t rballoc_sub[NFAPI_CC_MAX][N_RBG_MAX],
uint8_t MIMO_mode_indicator[NFAPI_CC_MAX][N_RBG_MAX]) {
int UE_id, CC_id;
int i;
uint8_t transmission_mode;
uint8_t slice_allocation_mask[NFAPI_CC_MAX][N_RBG_MAX];
uint16_t nb_rbs_required_remaining[NFAPI_CC_MAX][MAX_MOBILES_PER_ENB];
int N_RBG[NFAPI_CC_MAX];
rnti_t rnti;
UE_list_t *UE_list = &RC.mac[Mod_id]->UE_list;
decode_slice_positioning(Mod_id, slice_id, slice_allocation_mask);
//Allocation to UEs is done in 2 rounds,
// 1st stage: average number of RBs allocated to each UE
// 2nd stage: remaining RBs are allocated to high priority UEs
for (r1 = 0; r1 < 2; r1++) {
for (int r1 = 0; r1 < 2; r1++) {
for (UE_id = UE_list->head; UE_id >= 0; UE_id = UE_list->next[UE_id]) {
for (ii = 0; ii < UE_num_active_CC(UE_list, UE_id); ii++) {
CC_id = UE_list->ordered_CCids[ii][UE_id];
for (i = 0; i < UE_num_active_CC(UE_list, UE_id); i++) {
CC_id = UE_list->ordered_CCids[i][UE_id];
COMMON_channels_t *cc = &RC.mac[Mod_id]->common_channels[CC_id];
N_RBG[i] = to_rbg(cc->mib->message.dl_Bandwidth);
if (r1 == 0) {
nb_rbs_required_remaining[CC_id][UE_id] =
@@ -692,9 +708,9 @@ void dlsch_scheduler_pre_processor_accounting(module_id_t Mod_id,
for (UE_id = UE_list->head; UE_id >= 0; UE_id = UE_list->next[UE_id]) {
for (ii = 0; ii < UE_num_active_CC(UE_list, UE_id); ii++) {
for (i = 0; i < UE_num_active_CC(UE_list, UE_id); i++) {
CC_id = UE_list->ordered_CCids[ii][UE_id];
CC_id = UE_list->ordered_CCids[i][UE_id];
// if there are UEs with traffic
if (total_ue_count[CC_id] > 0) {
// ue_sched_ctl = &UE_list->UE_sched_ctrl[UE_id];
@@ -749,10 +765,10 @@ void dlsch_scheduler_pre_processor_accounting(module_id_t Mod_id,
&& (nb_rbs_required_remaining[CC_id][UE_id]
> 0)) {
for (ii = UE_list->next[UE_id + 1]; ii >= 0;
ii = UE_list->next[ii]) {
for (i = UE_list->next[UE_id + 1]; i >= 0;
i = UE_list->next[i]) {
UE_id2 = ii;
UE_id2 = i;
rnti2 = UE_RNTI(Mod_id, UE_id2);
ue_sched_ctl2 =
&UE_list->UE_sched_ctrl[UE_id2];
@@ -903,19 +919,19 @@ dlsch_scheduler_pre_processor(module_id_t Mod_id,
slice_id_t slice_id,
frame_t frameP,
sub_frame_t subframeP,
int N_RBG[NFAPI_CC_MAX],
int *mbsfn_flag) {
int *mbsfn_flag)
{
int UE_id;
uint8_t CC_id;
uint16_t i, j;
uint8_t rballoc_sub[NFAPI_CC_MAX][N_RBG_MAX];
uint8_t slice_allocation_mask[NFAPI_CC_MAX][N_RBG_MAX];
uint8_t total_ue_count[NFAPI_CC_MAX];
uint8_t MIMO_mode_indicator[NFAPI_CC_MAX][N_RBG_MAX]; // If TM5 is revisited, we can move this inside accounting
int min_rb_unit[NFAPI_CC_MAX];
uint16_t nb_rbs_required[NFAPI_CC_MAX][MAX_MOBILES_PER_ENB];
uint16_t nb_rbs_accounted[NFAPI_CC_MAX][MAX_MOBILES_PER_ENB];
UE_list_t *UE_list = &RC.mac[Mod_id]->UE_list;
UE_sched_ctrl *ue_sched_ctl;
@@ -932,59 +948,41 @@ dlsch_scheduler_pre_processor(module_id_t Mod_id,
UE_sched_ctrl *ue_sched_ctl1, *ue_sched_ctl2;
#endif
for (CC_id = 0; CC_id < RC.nb_mac_CC[Mod_id]; CC_id++) {
if (mbsfn_flag[CC_id] > 0) // If this CC is allocated for MBSFN skip it here
continue;
min_rb_unit[CC_id] = get_min_rb_unit(Mod_id, CC_id);
for (UE_id = 0; UE_id < MAX_MOBILES_PER_ENB; ++UE_id) {
if (UE_list->active[UE_id] != TRUE)
continue;
if (!ue_slice_membership(UE_id, slice_id))
continue;
// Initialize scheduling information for all active UEs
dlsch_scheduler_pre_processor_reset(Mod_id,
UE_id,
CC_id,
frameP,
subframeP,
N_RBG[CC_id],
nb_rbs_required,
rballoc_sub,
MIMO_mode_indicator);
}
}
// Initialize scheduling information for all active UEs
dlsch_scheduler_pre_processor_reset(Mod_id, slice_id, frameP, subframeP,
min_rb_unit,
nb_rbs_required,
rballoc_sub,
MIMO_mode_indicator,
mbsfn_flag); // TODO Not sure if useful
// Store the DLSCH buffer for each logical channel
store_dlsch_buffer(Mod_id, slice_id, frameP, subframeP);
// Calculate the number of RBs required by each UE on the basis of logical channel's buffer
assign_rbs_required(Mod_id, slice_id, frameP, subframeP, nb_rbs_required, min_rb_unit);
assign_rbs_required(Mod_id, slice_id, frameP, subframeP,
min_rb_unit,
nb_rbs_required);
// Sorts the user on the basis of dlsch logical channel buffer and CQI
sort_UEs(Mod_id, slice_id, frameP, subframeP);
// TODO: When accounting() is revised, this will be moved inside positioning()
decode_slice_positioning(Mod_id, slice_id, slice_allocation_mask);
// ACCOUNTING
// This function does the main allocation of the *number* of RBs
dlsch_scheduler_pre_processor_accounting(Mod_id,
slice_id,
frameP,
subframeP,
N_RBG,
// This procedure decides the number of RBs to allocate
dlsch_scheduler_pre_processor_accounting(Mod_id, slice_id, frameP, subframeP,
min_rb_unit,
rballoc_sub,
slice_allocation_mask,
MIMO_mode_indicator,
nb_rbs_required);
total_ue_count,
nb_rbs_required,
nb_rbs_accounted);
// POSITIONING
// This procedure does the main allocation of the RBs
dlsch_scheduler_pre_processor_positioning(Mod_id, slice_id,
min_rb_unit,
total_ue_count,
nb_rbs_required,
nb_rbs_accounted,
rballoc_sub,
MIMO_mode_indicator);
#ifdef TM5
// This has to be revisited!!!!
@@ -1034,13 +1032,15 @@ dlsch_scheduler_pre_processor(module_id_t Mod_id,
for (i = 0; i < UE_num_active_CC(UE_list, UE_id); i++) {
CC_id = UE_list->ordered_CCids[i][UE_id];
//PHY_vars_eNB_g[Mod_id]->mu_mimo_mode[UE_id].dl_pow_off = dl_pow_off[UE_id];
COMMON_channels_t *cc = &RC.mac[Mod_id]->common_channels[CC_id];
int N_RBG = to_rbg(cc->mib->message.dl_Bandwidth);
if (ue_sched_ctl->pre_nb_available_rbs[CC_id] > 0) {
LOG_D(MAC, "******************DL Scheduling Information for UE%d ************************\n", UE_id);
LOG_D(MAC, "dl power offset UE%d = %d \n", UE_id, ue_sched_ctl->dl_pow_off[CC_id]);
LOG_D(MAC, "***********RB Alloc for every subband for UE%d ***********\n", UE_id);
for (j = 0; j < N_RBG[CC_id]; j++) {
for (j = 0; j < N_RBG; j++) {
//PHY_vars_eNB_g[Mod_id]->mu_mimo_mode[UE_id].rballoc_sub[UE_id] = rballoc_sub_UE[CC_id][UE_id][UE_id];
LOG_D(MAC, "RB Alloc for UE%d and Subband%d = %d\n", UE_id, j, ue_sched_ctl->rballoc_sub_UE[CC_id][j]);
}
@@ -1056,186 +1056,225 @@ dlsch_scheduler_pre_processor(module_id_t Mod_id,
#define SF0_LIMIT 1
void
dlsch_scheduler_pre_processor_reset(int module_idP,
int UE_id,
uint8_t CC_id,
int frameP,
int subframeP,
int N_RBG,
uint16_t nb_rbs_required[NFAPI_CC_MAX]
[MAX_MOBILES_PER_ENB],
unsigned char
rballoc_sub[NFAPI_CC_MAX]
[N_RBG_MAX],
unsigned char
MIMO_mode_indicator[NFAPI_CC_MAX]
[N_RBG_MAX])
dlsch_scheduler_pre_processor_reset(module_id_t module_idP,
slice_id_t slice_id,
frame_t frameP,
sub_frame_t subframeP,
int min_rb_unit[NFAPI_CC_MAX],
uint16_t nb_rbs_required[NFAPI_CC_MAX][MAX_MOBILES_PER_ENB],
unsigned char rballoc_sub[NFAPI_CC_MAX][N_RBG_MAX],
unsigned char MIMO_mode_indicator[NFAPI_CC_MAX][N_RBG_MAX],
int *mbsfn_flag)
{
int UE_id;
uint8_t CC_id;
int i, j;
UE_list_t *UE_list = &RC.mac[module_idP]->UE_list;
UE_sched_ctrl *ue_sched_ctl = &UE_list->UE_sched_ctrl[UE_id];
uint8_t *vrb_map = RC.mac[module_idP]->common_channels[CC_id].vrb_map;
int N_RB_DL =
to_prb(RC.mac[module_idP]->common_channels[CC_id].mib->message.dl_Bandwidth);
int RBGsize = N_RB_DL / N_RBG, RBGsize_last;
#ifdef SF0_LIMIT
int sf0_upper = -1, sf0_lower = -1;
#endif
LOG_D(MAC, "Running preprocessor for UE %d (%x)\n", UE_id,(int)(UE_RNTI(module_idP, UE_id)));
// initialize harq_pid and round
if (ue_sched_ctl->ta_timer)
ue_sched_ctl->ta_timer--;
/*
eNB_UE_stats *eNB_UE_stats;
if (eNB_UE_stats == NULL)
return;
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],
openair_harq_DL);
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 (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
}
if (UE_id==0) {
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_UE0_TIMING_ADVANCE,ue_sched_ctl->ta_update);
}
*/
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;
switch (N_RB_DL) {
case 6:
RBGsize = 1;
RBGsize_last = 1;
break;
case 15:
RBGsize = 2;
RBGsize_last = 1;
break;
case 25:
RBGsize = 2;
RBGsize_last = 1;
break;
case 50:
RBGsize = 3;
RBGsize_last = 2;
break;
case 75:
RBGsize = 4;
RBGsize_last = 3;
break;
case 100:
RBGsize = 4;
RBGsize_last = 4;
break;
default:
AssertFatal(1 == 0, "unsupported RBs (%d)\n", N_RB_DL);
}
int N_RB_DL, RBGsize, RBGsize_last;
int N_RBG[NFAPI_CC_MAX];
#ifdef SF0_LIMIT
switch (N_RBG) {
case 6:
sf0_lower = 0;
sf0_upper = 5;
break;
case 8:
sf0_lower = 2;
sf0_upper = 5;
break;
case 13:
sf0_lower = 4;
sf0_upper = 7;
break;
case 17:
sf0_lower = 7;
sf0_upper = 9;
break;
case 25:
sf0_lower = 11;
sf0_upper = 13;
break;
default:
AssertFatal(1 == 0, "unsupported RBs (%d)\n", N_RB_DL);
}
int sf0_lower, sf0_upper;
#endif
// Initialize Subbands according to VRB map
for (i = 0; i < N_RBG; i++) {
int rb_size = i == N_RBG - 1 ? RBGsize_last : RBGsize;
rnti_t rnti;
UE_list_t *UE_list;
UE_sched_ctrl *ue_sched_ctl;
uint8_t *vrb_map;
COMMON_channels_t *cc;
//
for (CC_id = 0; CC_id < NFAPI_CC_MAX; CC_id++) {
ue_sched_ctl->rballoc_sub_UE[CC_id][i] = 0;
rballoc_sub[CC_id][i] = 0;
LOG_D(MAC, "Running preprocessor for UE %d (%x)\n", UE_id,(int)(UE_RNTI(module_idP, UE_id)));
// initialize harq_pid and round
cc = &RC.mac[module_idP]->common_channels[CC_id];
N_RBG[CC_id] = to_rbg(cc->mib->message.dl_Bandwidth);
min_rb_unit[CC_id] = get_min_rb_unit(module_idP, CC_id);
if (mbsfn_flag[CC_id] > 0) // If this CC is allocated for MBSFN skip it here
continue;
for (UE_id = 0; UE_id < MAX_MOBILES_PER_ENB; ++UE_id) {
UE_list = &RC.mac[module_idP]->UE_list;
ue_sched_ctl = &UE_list->UE_sched_ctrl[UE_id];
rnti = UE_RNTI(module_idP, UE_id);
if (rnti == NOT_A_RNTI)
continue;
if (UE_list->active[UE_id] != TRUE)
continue;
if (!ue_slice_membership(UE_id, slice_id))
continue;
vrb_map = RC.mac[module_idP]->common_channels[CC_id].vrb_map;
N_RB_DL = to_prb(RC.mac[module_idP]->common_channels[CC_id].mib->message.dl_Bandwidth);
#ifdef SF0_LIMIT
// for avoiding 6+ PRBs around DC in subframe 0 (avoid excessive errors)
/* TODO: make it proper - allocate those RBs, do not "protect" them, but
* compute number of available REs and limit MCS according to the
* TBS table 36.213 7.1.7.2.1-1 (can be done after pre-processor)
*/
if (subframeP == 0 && i >= sf0_lower && i <= sf0_upper)
rballoc_sub[CC_id][i] = 1;
sf0_lower = -1;
sf0_upper = -1;
#endif
// for SI-RNTI,RA-RNTI and P-RNTI allocations
for (j = 0; j < rb_size; j++) {
if (vrb_map[j + (i * RBGsize)] != 0) {
rballoc_sub[CC_id][i] = 1;
LOG_D(MAC, "Frame %d, subframe %d : vrb %d allocated\n",
frameP, subframeP, j + (i * RBGsize));
break;
LOG_D(MAC, "Running preprocessor for UE %d (%x)\n", UE_id, rnti);
// initialize harq_pid and round
if (ue_sched_ctl->ta_timer)
ue_sched_ctl->ta_timer--;
/*
eNB_UE_stats *eNB_UE_stats;
if (eNB_UE_stats == NULL)
return;
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],
openair_harq_DL);
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 (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
}
if (UE_id==0) {
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_UE0_TIMING_ADVANCE,ue_sched_ctl->ta_update);
}
*/
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;
switch (N_RB_DL) {
case 6:
RBGsize = 1;
RBGsize_last = 1;
break;
case 15:
RBGsize = 2;
RBGsize_last = 1;
break;
case 25:
RBGsize = 2;
RBGsize_last = 1;
break;
case 50:
RBGsize = 3;
RBGsize_last = 2;
break;
case 75:
RBGsize = 4;
RBGsize_last = 3;
break;
case 100:
RBGsize = 4;
RBGsize_last = 4;
break;
default:
AssertFatal(1 == 0, "unsupported RBs (%d)\n", N_RB_DL);
}
#ifdef SF0_LIMIT
switch (N_RBG[CC_id]) {
case 6:
sf0_lower = 0;
sf0_upper = 5;
break;
case 8:
sf0_lower = 2;
sf0_upper = 5;
break;
case 13:
sf0_lower = 4;
sf0_upper = 7;
break;
case 17:
sf0_lower = 7;
sf0_upper = 9;
break;
case 25:
sf0_lower = 11;
sf0_upper = 13;
break;
default:
AssertFatal(1 == 0, "unsupported RBs (%d)\n", N_RB_DL);
}
#endif
// Initialize Subbands according to VRB map
for (i = 0; i < N_RBG[CC_id]; i++) {
int rb_size = i == N_RBG[CC_id] - 1 ? RBGsize_last : RBGsize;
ue_sched_ctl->rballoc_sub_UE[CC_id][i] = 0;
rballoc_sub[CC_id][i] = 0;
#ifdef SF0_LIMIT
// for avoiding 6+ PRBs around DC in subframe 0 (avoid excessive errors)
/* TODO: make it proper - allocate those RBs, do not "protect" them, but
* compute number of available REs and limit MCS according to the
* TBS table 36.213 7.1.7.2.1-1 (can be done after pre-processor)
*/
if (subframeP == 0 && i >= sf0_lower && i <= sf0_upper)
rballoc_sub[CC_id][i] = 1;
#endif
// for SI-RNTI,RA-RNTI and P-RNTI allocations
for (j = 0; j < rb_size; j++) {
if (vrb_map[j + (i*RBGsize)] != 0) {
rballoc_sub[CC_id][i] = 1;
LOG_D(MAC, "Frame %d, subframe %d : vrb %d allocated\n", frameP, subframeP, j + (i*RBGsize));
break;
}
}
LOG_D(MAC, "Frame %d Subframe %d CC_id %d RBG %i : rb_alloc %d\n",
frameP, subframeP, CC_id, i, rballoc_sub[CC_id][i]);
MIMO_mode_indicator[CC_id][i] = 2;
}
}
LOG_D(MAC, "Frame %d Subframe %d CC_id %d RBG %i : rb_alloc %d\n",
frameP, subframeP, CC_id, i, rballoc_sub[CC_id][i]);
MIMO_mode_indicator[CC_id][i] = 2;
}
}