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alex037yang
OpenXG-RAN
Commits
4fb2e609
Commit
4fb2e609
authored
Feb 22, 2018
by
Cedric Roux
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Merge remote-tracking branch 'origin/enhancement-preprocessor' into develop_integration_2018_w08
parents
7b06a540
10e91d4e
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589 additions
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590 deletions
+589
-590
openair2/LAYER2/MAC/pre_processor.c
openair2/LAYER2/MAC/pre_processor.c
+589
-585
openair2/LAYER2/MAC/proto.h
openair2/LAYER2/MAC/proto.h
+0
-5
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openair2/LAYER2/MAC/pre_processor.c
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4fb2e609
...
...
@@ -593,588 +593,591 @@ void sort_UEs(module_id_t Mod_idP, slice_id_t slice_id, int frameP, sub_frame_t
#endif
}
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
[
MAX_NUM_CCs
],
int
min_rb_unit
[
MAX_NUM_CCs
],
uint8_t
rballoc_sub
[
MAX_NUM_CCs
][
N_RBG_MAX
],
uint8_t
MIMO_mode_indicator
[
MAX_NUM_CCs
][
N_RBG_MAX
],
uint16_t
nb_rbs_required
[
MAX_NUM_CCs
][
NUMBER_OF_UE_MAX
])
{
int
UE_id
,
CC_id
;
int
ii
,
r1
;
rnti_t
rnti
;
uint8_t
harq_pid
,
round
,
transmission_mode
;
uint8_t
total_rbs_used
[
MAX_NUM_CCs
];
uint8_t
total_ue_count
[
MAX_NUM_CCs
];
uint16_t
average_rbs_per_user
[
MAX_NUM_CCs
];
uint16_t
nb_rbs_required_remaining
[
MAX_NUM_CCs
][
NUMBER_OF_UE_MAX
];
uint16_t
nb_rbs_required_remaining_1
[
MAX_NUM_CCs
][
NUMBER_OF_UE_MAX
];
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
;
for
(
CC_id
=
0
;
CC_id
<
MAX_NUM_CCs
;
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
<
NUMBER_OF_UE_MAX
;
++
UE_id
)
{
nb_rbs_required_remaining
[
CC_id
][
UE_id
]
=
0
;
}
}
// loop over all active UEs
for
(
UE_id
=
UE_list
->
head
;
UE_id
>=
0
;
UE_id
=
UE_list
->
next
[
UE_id
])
{
rnti
=
UE_RNTI
(
Mod_id
,
UE_id
);
if
(
rnti
==
NOT_A_RNTI
)
continue
;
if
(
UE_list
->
UE_sched_ctrl
[
UE_id
].
ul_out_of_sync
==
1
)
continue
;
if
(
!
ue_slice_membership
(
UE_id
,
slice_id
))
continue
;
// This function assigns pre-available RBS to each UE in specified sub-bands before scheduling is done
void
dlsch_scheduler_pre_processor
(
module_id_t
Mod_id
,
slice_id_t
slice_id
,
frame_t
frameP
,
sub_frame_t
subframeP
,
int
N_RBG
[
MAX_NUM_CCs
],
int
*
mbsfn_flag
)
{
unsigned
char
rballoc_sub
[
MAX_NUM_CCs
][
N_RBG_MAX
],
harq_pid
=
0
,
round
=
0
,
total_ue_count
[
MAX_NUM_CCs
],
total_rbs_used
[
MAX_NUM_CCs
];
unsigned
char
MIMO_mode_indicator
[
MAX_NUM_CCs
][
N_RBG_MAX
];
int
UE_id
,
i
;
uint16_t
ii
,
j
;
uint16_t
nb_rbs_required
[
MAX_NUM_CCs
][
NUMBER_OF_UE_MAX
];
uint16_t
nb_rbs_required_remaining
[
MAX_NUM_CCs
][
NUMBER_OF_UE_MAX
];
uint16_t
nb_rbs_required_remaining_1
[
MAX_NUM_CCs
][
NUMBER_OF_UE_MAX
];
uint16_t
average_rbs_per_user
[
MAX_NUM_CCs
]
=
{
0
};
rnti_t
rnti
;
int
min_rb_unit
[
MAX_NUM_CCs
];
uint16_t
r1
=
0
;
uint8_t
CC_id
;
UE_list_t
*
UE_list
=
&
RC
.
mac
[
Mod_id
]
->
UE_list
;
int
N_RB_DL
;
int
transmission_mode
=
0
;
UE_sched_ctrl
*
ue_sched_ctl
;
// int rrc_status = RRC_IDLE;
COMMON_channels_t
*
cc
;
#ifdef TM5
int
harq_pid1
=
0
;
int
round1
=
0
,
round2
=
0
;
int
UE_id2
;
uint16_t
i1
,
i2
,
i3
;
rnti_t
rnti1
,
rnti2
;
LTE_eNB_UE_stats
*
eNB_UE_stats1
=
NULL
;
LTE_eNB_UE_stats
*
eNB_UE_stats2
=
NULL
;
UE_sched_ctrl
*
ue_sched_ctl1
,
*
ue_sched_ctl2
;
#endif
for
(
CC_id
=
0
;
CC_id
<
MAX_NUM_CCs
;
CC_id
++
)
{
if
(
mbsfn_flag
[
CC_id
]
>
0
)
// If this CC is allocated for MBSFN skip it here
continue
;
for
(
ii
=
0
;
ii
<
UE_num_active_CC
(
UE_list
,
UE_id
);
ii
++
)
{
CC_id
=
UE_list
->
ordered_CCids
[
ii
][
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?
if
(
cc
->
tdd_Config
)
harq_pid
=
((
frameP
*
10
)
+
subframeP
)
%
10
;
else
harq_pid
=
((
frameP
*
10
)
+
subframeP
)
&
7
;
round
=
ue_sched_ctl
->
round
[
CC_id
][
harq_pid
];
average_rbs_per_user
[
CC_id
]
=
0
;
if
(
round
!=
8
)
{
nb_rbs_required
[
CC_id
][
UE_id
]
=
UE_list
->
UE_template
[
CC_id
][
UE_id
].
nb_rb
[
harq_pid
];
total_rbs_used
[
CC_id
]
+=
nb_rbs_required
[
CC_id
][
UE_id
];
}
min_rb_unit
[
CC_id
]
=
get_min_rb_unit
(
Mod_id
,
CC_id
);
//nb_rbs_required_remaining[UE_id] = nb_rbs_required[UE_id];
if
(
nb_rbs_required
[
CC_id
][
UE_id
]
>
0
)
{
total_ue_count
[
CC_id
]
=
total_ue_count
[
CC_id
]
+
1
;
}
}
}
for
(
i
=
0
;
i
<
NUMBER_OF_UE_MAX
;
i
++
)
{
if
(
UE_list
->
active
[
i
]
!=
TRUE
)
continue
;
// loop over all active UEs and calculate avg rb per user based on total active UEs
for
(
UE_id
=
UE_list
->
head
;
UE_id
>=
0
;
UE_id
=
UE_list
->
next
[
UE_id
])
{
rnti
=
UE_RNTI
(
Mod_id
,
UE_id
)
;
if
(
!
ue_slice_membership
(
i
,
slice_id
))
continue
;
if
(
rnti
==
NOT_A_RNTI
)
continue
;
if
(
UE_list
->
UE_sched_ctrl
[
UE_id
].
ul_out_of_sync
==
1
)
continue
;
if
(
!
ue_slice_membership
(
UE_id
,
slice_id
))
continue
;
UE_id
=
i
;
// Initialize scheduling information for all active UEs
for
(
ii
=
0
;
ii
<
UE_num_active_CC
(
UE_list
,
UE_id
);
ii
++
)
{
CC_id
=
UE_list
->
ordered_CCids
[
ii
][
UE_id
];
// hypothetical assignment
/*
* If schedule is enabled and if the priority of the UEs is modified
* The average rbs per logical channel per user will depend on the level of
* priority. Concerning the hypothetical assignement, we should assign more
* rbs to prioritized users. Maybe, we can do a mapping between the
* average rbs per user and the level of priority or multiply the average rbs
* per user by a coefficient which represents the degree of priority.
*/
N_RB_DL
=
to_prb
(
RC
.
mac
[
Mod_id
]
->
common_channels
[
CC_id
].
mib
->
message
.
dl_Bandwidth
)
-
total_rbs_used
[
CC_id
];
dlsch_scheduler_pre_processor_reset
(
Mod_id
,
UE_id
,
CC_id
,
frameP
,
subframeP
,
N_RBG
[
CC_id
],
nb_rbs_required
,
nb_rbs_required_remaining
,
total_ue_count
,
total_rbs_used
,
rballoc_sub
,
MIMO_mode_indicator
);
// recalculate based on the what is left after retransmission
ue_sched_ctl
=
&
UE_list
->
UE_sched_ctrl
[
UE_id
];
ue_sched_ctl
->
max_rbs_allowed_slice
[
CC_id
][
slice_id
]
=
flexran_nb_rbs_allowed_slice
(
slice_percentage
[
slice_id
],
N_RB_DL
);
}
if
(
total_ue_count
[
CC_id
]
==
0
)
{
average_rbs_per_user
[
CC_id
]
=
0
;
}
else
if
((
min_rb_unit
[
CC_id
]
*
total_ue_count
[
CC_id
])
<=
(
ue_sched_ctl
->
max_rbs_allowed_slice
[
CC_id
][
slice_id
]))
{
average_rbs_per_user
[
CC_id
]
=
(
uint16_t
)
floor
(
ue_sched_ctl
->
max_rbs_allowed_slice
[
CC_id
][
slice_id
]
/
total_ue_count
[
CC_id
]);
}
else
{
// consider the total number of use that can be scheduled UE
average_rbs_per_user
[
CC_id
]
=
min_rb_unit
[
CC_id
];
}
}
}
// note: nb_rbs_required is assigned according to total_buffer_dl
// extend nb_rbs_required to capture per LCID RB required
for
(
UE_id
=
UE_list
->
head
;
UE_id
>=
0
;
UE_id
=
UE_list
->
next
[
UE_id
])
{
rnti
=
UE_RNTI
(
Mod_id
,
UE_id
);
// Store the DLSCH buffer for each logical channel
store_dlsch_buffer
(
Mod_id
,
slice_id
,
frameP
,
subframeP
);
if
(
rnti
==
NOT_A_RNTI
)
continue
;
if
(
UE_list
->
UE_sched_ctrl
[
UE_id
].
ul_out_of_sync
==
1
)
continue
;
if
(
!
ue_slice_membership
(
UE_id
,
slice_id
))
continue
;
// 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
);
for
(
ii
=
0
;
ii
<
UE_num_active_CC
(
UE_list
,
UE_id
);
ii
++
)
{
CC_id
=
UE_list
->
ordered_CCids
[
ii
][
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?
if
(
cc
->
tdd_Config
)
harq_pid
=
((
frameP
*
10
)
+
subframeP
)
%
10
;
else
harq_pid
=
((
frameP
*
10
)
+
subframeP
)
&
7
;
round
=
ue_sched_ctl
->
round
[
CC_id
][
harq_pid
];
// control channel or retransmission
/* TODO: do we have to check for retransmission? */
if
(
mac_eNB_get_rrc_status
(
Mod_id
,
rnti
)
<
RRC_RECONFIGURED
||
round
>
0
)
{
nb_rbs_required_remaining_1
[
CC_id
][
UE_id
]
=
nb_rbs_required
[
CC_id
][
UE_id
];
}
else
{
nb_rbs_required_remaining_1
[
CC_id
][
UE_id
]
=
cmin
(
average_rbs_per_user
[
CC_id
],
nb_rbs_required
[
CC_id
][
UE_id
]);
}
}
}
//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
(
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
];
if
(
r1
==
0
)
{
nb_rbs_required_remaining
[
CC_id
][
UE_id
]
=
nb_rbs_required_remaining_1
[
CC_id
][
UE_id
];
}
else
{
// rb required based only on the buffer - rb allocated in the 1st round + extra reaming rb form the 1st round
nb_rbs_required_remaining
[
CC_id
][
UE_id
]
=
nb_rbs_required
[
CC_id
][
UE_id
]
-
nb_rbs_required_remaining_1
[
CC_id
][
UE_id
]
+
nb_rbs_required_remaining
[
CC_id
][
UE_id
];
if
(
nb_rbs_required_remaining
[
CC_id
][
UE_id
]
<
0
)
abort
();
}
if
(
nb_rbs_required
[
CC_id
][
UE_id
]
>
0
)
LOG_D
(
MAC
,
"round %d : nb_rbs_required_remaining[%d][%d]= %d (remaining_1 %d, required %d, pre_nb_available_rbs %d, N_RBG %d, rb_unit %d)
\n
"
,
r1
,
CC_id
,
UE_id
,
nb_rbs_required_remaining
[
CC_id
][
UE_id
],
nb_rbs_required_remaining_1
[
CC_id
][
UE_id
],
nb_rbs_required
[
CC_id
][
UE_id
],
UE_list
->
UE_sched_ctrl
[
UE_id
].
pre_nb_available_rbs
[
CC_id
],
N_RBG
[
CC_id
],
min_rb_unit
[
CC_id
]);
// Sorts the user on the basis of dlsch logical channel buffer and CQI
sort_UEs
(
Mod_id
,
slice_id
,
frameP
,
subframeP
);
}
}
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
];
// if there are UEs with traffic
if
(
total_ue_count
[
CC_id
]
>
0
)
{
// ue_sched_ctl = &UE_list->UE_sched_ctrl[UE_id];
// round = ue_sched_ctl->round[CC_id][harq_pid];
rnti
=
UE_RNTI
(
Mod_id
,
UE_id
);
// LOG_D(MAC,"UE %d rnti 0x\n", UE_id, rnti );
if
(
rnti
==
NOT_A_RNTI
)
continue
;
if
(
UE_list
->
UE_sched_ctrl
[
UE_id
].
ul_out_of_sync
==
1
)
continue
;
if
(
!
ue_slice_membership
(
UE_id
,
slice_id
))
continue
;
transmission_mode
=
get_tmode
(
Mod_id
,
CC_id
,
UE_id
);
// mac_xface->get_ue_active_harq_pid(Mod_id,CC_id,rnti,frameP,subframeP,&harq_pid,&round,0);
// rrc_status = mac_eNB_get_rrc_status(Mod_id,rnti);
/* 1st allocate for the retx */
// retransmission in data channels
// control channel in the 1st transmission
// data channel for all TM
LOG_T
(
MAC
,
"calling dlsch_scheduler_pre_processor_allocate ..
\n
"
);
dlsch_scheduler_pre_processor_allocate
(
Mod_id
,
UE_id
,
CC_id
,
N_RBG
[
CC_id
],
transmission_mode
,
min_rb_unit
[
CC_id
],
to_prb
(
RC
.
mac
[
Mod_id
]
->
common_channels
[
CC_id
].
mib
->
message
.
dl_Bandwidth
),
nb_rbs_required
,
nb_rbs_required_remaining
,
rballoc_sub
,
MIMO_mode_indicator
);
// loop over all active UEs
for
(
i
=
UE_list
->
head
;
i
>=
0
;
i
=
UE_list
->
next
[
i
])
{
rnti
=
UE_RNTI
(
Mod_id
,
i
);
if
(
rnti
==
NOT_A_RNTI
)
continue
;
if
(
UE_list
->
UE_sched_ctrl
[
i
].
ul_out_of_sync
==
1
)
continue
;
UE_id
=
i
;
if
(
!
ue_slice_membership
(
UE_id
,
slice_id
))
continue
;
#ifdef TM5
// data chanel TM5: to be revisited
if
((
round
==
0
)
&&
(
transmission_mode
==
5
)
&&
(
ue_sched_ctl
->
dl_pow_off
[
CC_id
]
!=
1
))
{
for
(
j
=
0
;
j
<
N_RBG
[
CC_id
];
j
+=
2
)
{
if
((((
j
==
(
N_RBG
[
CC_id
]
-
1
))
&&
(
rballoc_sub
[
CC_id
][
j
]
==
0
)
&&
(
ue_sched_ctl
->
rballoc_sub_UE
[
CC_id
][
j
]
==
0
))
||
((
j
<
(
N_RBG
[
CC_id
]
-
1
))
&&
(
rballoc_sub
[
CC_id
][
j
+
1
]
==
0
)
&&
(
ue_sched_ctl
->
rballoc_sub_UE
[
CC_id
][
j
+
1
]
==
0
)))
&&
(
nb_rbs_required_remaining
[
CC_id
][
UE_id
]
>
0
))
{
for
(
ii
=
UE_list
->
next
[
UE_id
+
1
];
ii
>=
0
;
ii
=
UE_list
->
next
[
ii
])
{
UE_id2
=
ii
;
rnti2
=
UE_RNTI
(
Mod_id
,
UE_id2
);
ue_sched_ctl2
=
&
UE_list
->
UE_sched_ctrl
[
UE_id2
];
round2
=
ue_sched_ctl2
->
round
[
CC_id
];
if
(
rnti2
==
NOT_A_RNTI
)
continue
;
if
(
UE_list
->
UE_sched_ctrl
[
UE_id2
].
ul_out_of_sync
==
1
)
continue
;
eNB_UE_stats2
=
UE_list
->
eNB_UE_stats
[
CC_id
][
UE_id2
];
//mac_xface->get_ue_active_harq_pid(Mod_id,CC_id,rnti2,frameP,subframeP,&harq_pid2,&round2,0);
if
((
mac_eNB_get_rrc_status
(
Mod_id
,
rnti2
)
>=
RRC_RECONFIGURED
)
&&
(
round2
==
0
)
&&
(
get_tmode
(
Mod_id
,
CC_id
,
UE_id2
)
==
5
)
&&
(
ue_sched_ctl
->
dl_pow_off
[
CC_id
]
!=
1
))
{
if
((((
j
==
(
N_RBG
[
CC_id
]
-
1
))
&&
(
ue_sched_ctl
->
rballoc_sub_UE
[
CC_id
][
j
]
==
0
))
||
((
j
<
(
N_RBG
[
CC_id
]
-
1
))
&&
(
ue_sched_ctl
->
rballoc_sub_UE
[
CC_id
][
j
+
1
]
==
0
)))
&&
(
nb_rbs_required_remaining
[
CC_id
]
[
UE_id2
]
>
0
))
{
if
((((
eNB_UE_stats2
->
DL_pmi_single
^
eNB_UE_stats1
->
DL_pmi_single
)
<<
(
14
-
j
))
&
0xc000
)
==
0x4000
)
{
//MU-MIMO only for 25 RBs configuration
rballoc_sub
[
CC_id
][
j
]
=
1
;
ue_sched_ctl
->
rballoc_sub_UE
[
CC_id
]
[
j
]
=
1
;
ue_sched_ctl2
->
rballoc_sub_UE
[
CC_id
]
[
j
]
=
1
;
MIMO_mode_indicator
[
CC_id
]
[
j
]
=
0
;
if
(
j
<
N_RBG
[
CC_id
]
-
1
)
{
rballoc_sub
[
CC_id
][
j
+
1
]
=
1
;
ue_sched_ctl
->
rballoc_sub_UE
[
CC_id
][
j
+
1
]
=
1
;
ue_sched_ctl2
->
rballoc_sub_UE
[
CC_id
][
j
+
1
]
=
1
;
MIMO_mode_indicator
[
CC_id
][
j
+
1
]
=
0
;
}
ue_sched_ctl
->
dl_pow_off
[
CC_id
]
=
0
;
ue_sched_ctl2
->
dl_pow_off
[
CC_id
]
=
0
;
if
((
j
==
N_RBG
[
CC_id
]
-
1
)
&&
((
N_RB_DL
==
25
)
||
(
N_RB_DL
==
50
)))
{
nb_rbs_required_remaining
[
CC_id
][
UE_id
]
=
nb_rbs_required_remaining
[
CC_id
][
UE_id
]
-
min_rb_unit
[
CC_id
]
+
1
;
ue_sched_ctl
->
pre_nb_available_rbs
[
CC_id
]
=
ue_sched_ctl
->
pre_nb_available_rbs
[
CC_id
]
+
min_rb_unit
[
CC_id
]
-
1
;
nb_rbs_required_remaining
[
CC_id
][
UE_id2
]
=
nb_rbs_required_remaining
[
CC_id
][
UE_id2
]
-
min_rb_unit
[
CC_id
]
+
1
;
ue_sched_ctl2
->
pre_nb_available_rbs
[
CC_id
]
=
ue_sched_ctl2
->
pre_nb_available_rbs
[
CC_id
]
+
min_rb_unit
[
CC_id
]
-
1
;
}
else
{
nb_rbs_required_remaining
[
CC_id
][
UE_id
]
=
nb_rbs_required_remaining
[
CC_id
][
UE_id
]
-
4
;
ue_sched_ctl
->
pre_nb_available_rbs
[
CC_id
]
=
ue_sched_ctl
->
pre_nb_available_rbs
[
CC_id
]
+
4
;
nb_rbs_required_remaining
[
CC_id
][
UE_id2
]
=
nb_rbs_required_remaining
[
CC_id
][
UE_id2
]
-
4
;
ue_sched_ctl2
->
pre_nb_available_rbs
[
CC_id
]
=
ue_sched_ctl2
->
pre_nb_available_rbs
[
CC_id
]
+
4
;
}
break
;
}
}
}
}
}
}
}
#endif
}
// total_ue_count
}
// CC
}
// UE
}
// end of for for r1 and r2
}
for
(
ii
=
0
;
ii
<
UE_num_active_CC
(
UE_list
,
UE_id
);
ii
++
)
{
CC_id
=
UE_list
->
ordered_CCids
[
ii
][
UE_id
];
ue_sched_ctl
=
&
UE_list
->
UE_sched_ctrl
[
UE_id
];
cc
=
&
RC
.
mac
[
Mod_id
]
->
common_channels
[
ii
];
if
(
cc
->
tdd_Config
)
harq_pid
=
((
frameP
*
10
)
+
subframeP
)
%
10
;
else
harq_pid
=
((
frameP
*
10
)
+
subframeP
)
&
7
;
round
=
ue_sched_ctl
->
round
[
CC_id
][
harq_pid
];
// This function assigns pre-available RBS to each UE in specified sub-bands before scheduling is done
void
dlsch_scheduler_pre_processor
(
module_id_t
Mod_id
,
slice_id_t
slice_id
,
frame_t
frameP
,
sub_frame_t
subframeP
,
int
N_RBG
[
MAX_NUM_CCs
],
int
*
mbsfn_flag
)
{
average_rbs_per_user
[
CC_id
]
=
0
;
int
UE_id
;
uint8_t
CC_id
;
uint16_t
i
,
j
;
uint8_t
rballoc_sub
[
MAX_NUM_CCs
][
N_RBG_MAX
];
uint8_t
MIMO_mode_indicator
[
MAX_NUM_CCs
][
N_RBG_MAX
];
// If TM5 is revisited, we can move this inside accounting
if
(
round
!=
8
)
{
nb_rbs_required
[
CC_id
][
UE_id
]
=
UE_list
->
UE_template
[
CC_id
][
UE_id
].
nb_rb
[
harq_pid
];
total_rbs_used
[
CC_id
]
+=
nb_rbs_required
[
CC_id
][
UE_id
];
}
int
min_rb_unit
[
MAX_NUM_CCs
];
uint16_t
nb_rbs_required
[
MAX_NUM_CCs
][
NUMBER_OF_UE_MAX
];
//nb_rbs_required_remaining[UE_id] = nb_rbs_required[UE_id];
if
(
nb_rbs_required
[
CC_id
][
UE_id
]
>
0
)
{
total_ue_count
[
CC_id
]
=
total_ue_count
[
CC_id
]
+
1
;
}
UE_list_t
*
UE_list
=
&
RC
.
mac
[
Mod_id
]
->
UE_list
;
UE_sched_ctrl
*
ue_sched_ctl
;
// int rrc_status = RRC_IDLE;
}
}
#ifdef TM5
int
harq_pid1
=
0
;
int
round1
=
0
,
round2
=
0
;
int
UE_id2
;
uint16_t
i1
,
i2
,
i3
;
rnti_t
rnti1
,
rnti2
;
LTE_eNB_UE_stats
*
eNB_UE_stats1
=
NULL
;
LTE_eNB_UE_stats
*
eNB_UE_stats2
=
NULL
;
UE_sched_ctrl
*
ue_sched_ctl1
,
*
ue_sched_ctl2
;
#endif
// loop over all active UEs and calculate avg rb per user based on total active UEs
for
(
i
=
UE_list
->
head
;
i
>=
0
;
i
=
UE_list
->
next
[
i
])
{
rnti
=
UE_RNTI
(
Mod_id
,
i
);
for
(
CC_id
=
0
;
CC_id
<
MAX_NUM_CCs
;
CC_id
++
)
{
if
(
rnti
==
NOT_A_RNTI
)
continue
;
if
(
UE_list
->
UE_sched_ctrl
[
i
].
ul_out_of_sync
==
1
)
continue
;
UE_id
=
i
;
if
(
!
ue_slice_membership
(
UE_id
,
slice_id
))
continue
;
if
(
mbsfn_flag
[
CC_id
]
>
0
)
// If this CC is allocated for MBSFN skip it here
continue
;
for
(
ii
=
0
;
ii
<
UE_num_active_CC
(
UE_list
,
UE_id
);
ii
++
)
{
CC_id
=
UE_list
->
ordered_CCids
[
ii
][
UE_id
];
// hypothetical assignment
/*
* If schedule is enabled and if the priority of the UEs is modified
* The average rbs per logical channel per user will depend on the level of
* priority. Concerning the hypothetical assignement, we should assign more
* rbs to prioritized users. Maybe, we can do a mapping between the
* average rbs per user and the level of priority or multiply the average rbs
* per user by a coefficient which represents the degree of priority.
*/
N_RB_DL
=
to_prb
(
RC
.
mac
[
Mod_id
]
->
common_channels
[
CC_id
].
mib
->
message
.
dl_Bandwidth
)
-
total_rbs_used
[
CC_id
];
//recalcualte based on the what is left after retransmission
ue_sched_ctl
=
&
UE_list
->
UE_sched_ctrl
[
UE_id
];
ue_sched_ctl
->
max_rbs_allowed_slice
[
CC_id
][
slice_id
]
=
flexran_nb_rbs_allowed_slice
(
slice_percentage
[
slice_id
],
N_RB_DL
);
if
(
total_ue_count
[
CC_id
]
==
0
)
{
average_rbs_per_user
[
CC_id
]
=
0
;
}
else
if
((
min_rb_unit
[
CC_id
]
*
total_ue_count
[
CC_id
])
<=
(
ue_sched_ctl
->
max_rbs_allowed_slice
[
CC_id
][
slice_id
]))
{
average_rbs_per_user
[
CC_id
]
=
(
uint16_t
)
floor
(
ue_sched_ctl
->
max_rbs_allowed_slice
[
CC_id
][
slice_id
]
/
total_ue_count
[
CC_id
]);
}
else
{
average_rbs_per_user
[
CC_id
]
=
min_rb_unit
[
CC_id
];
// consider the total number of use that can be scheduled UE
}
}
}
min_rb_unit
[
CC_id
]
=
get_min_rb_unit
(
Mod_id
,
CC_id
);
// note: nb_rbs_required is assigned according to total_buffer_dl
// extend nb_rbs_required to capture per LCID RB required
for
(
i
=
UE_list
->
head
;
i
>=
0
;
i
=
UE_list
->
next
[
i
])
{
rnti
=
UE_RNTI
(
Mod_id
,
i
);
for
(
UE_id
=
0
;
UE_id
<
NUMBER_OF_UE_MAX
;
++
UE_id
)
{
if
(
UE_list
->
active
[
UE_id
]
!=
TRUE
)
continue
;
if
(
rnti
==
NOT_A_RNTI
)
continue
;
if
(
UE_list
->
UE_sched_ctrl
[
i
].
ul_out_of_sync
==
1
)
continue
;
if
(
!
ue_slice_membership
(
i
,
slice_id
))
continue
;
if
(
!
ue_slice_membership
(
UE_id
,
slice_id
))
continue
;
for
(
ii
=
0
;
ii
<
UE_num_active_CC
(
UE_list
,
i
);
ii
++
)
{
CC_id
=
UE_list
->
ordered_CCids
[
ii
][
i
];
ue_sched_ctl
=
&
UE_list
->
UE_sched_ctrl
[
i
];
round
=
ue_sched_ctl
->
round
[
CC_id
][
harq_pid
];
// control channel or retransmission
/* TODO: do we have to check for retransmission? */
if
(
mac_eNB_get_rrc_status
(
Mod_id
,
rnti
)
<
RRC_RECONFIGURED
||
round
>
0
)
{
nb_rbs_required_remaining_1
[
CC_id
][
i
]
=
nb_rbs_required
[
CC_id
][
i
];
}
else
{
nb_rbs_required_remaining_1
[
CC_id
][
i
]
=
cmin
(
average_rbs_per_user
[
CC_id
],
nb_rbs_required
[
CC_id
][
i
]);
// 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
);
}
}
}
}
//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
(
i
=
UE_list
->
head
;
i
>=
0
;
i
=
UE_list
->
next
[
i
])
{
for
(
ii
=
0
;
ii
<
UE_num_active_CC
(
UE_list
,
i
);
ii
++
)
{
CC_id
=
UE_list
->
ordered_CCids
[
ii
][
i
];
if
(
r1
==
0
)
{
nb_rbs_required_remaining
[
CC_id
][
i
]
=
nb_rbs_required_remaining_1
[
CC_id
][
i
];
}
else
{
// rb required based only on the buffer - rb allloctaed in the 1st round + extra reaming rb form the 1st round
nb_rbs_required_remaining
[
CC_id
][
i
]
=
nb_rbs_required
[
CC_id
][
i
]
-
nb_rbs_required_remaining_1
[
CC_id
][
i
]
+
nb_rbs_required_remaining
[
CC_id
][
i
];
if
(
nb_rbs_required_remaining
[
CC_id
][
i
]
<
0
)
abort
();
}
if
(
nb_rbs_required
[
CC_id
][
i
]
>
0
)
LOG_D
(
MAC
,
"round %d : nb_rbs_required_remaining[%d][%d]= %d (remaining_1 %d, required %d, pre_nb_available_rbs %d, N_RBG %d, rb_unit %d)
\n
"
,
r1
,
CC_id
,
i
,
nb_rbs_required_remaining
[
CC_id
][
i
],
nb_rbs_required_remaining_1
[
CC_id
][
i
],
nb_rbs_required
[
CC_id
][
i
],
UE_list
->
UE_sched_ctrl
[
i
].
pre_nb_available_rbs
[
CC_id
],
N_RBG
[
CC_id
],
min_rb_unit
[
CC_id
]);
}
}
for
(
i
=
UE_list
->
head
;
i
>=
0
;
i
=
UE_list
->
next
[
i
])
{
UE_id
=
i
;
for
(
ii
=
0
;
ii
<
UE_num_active_CC
(
UE_list
,
UE_id
);
ii
++
)
{
// if there are UEs with traffic
if
(
total_ue_count
[
CC_id
]
>
0
)
{
CC_id
=
UE_list
->
ordered_CCids
[
ii
][
UE_id
];
ue_sched_ctl
=
&
UE_list
->
UE_sched_ctrl
[
UE_id
];
round
=
ue_sched_ctl
->
round
[
CC_id
][
harq_pid
];
// Store the DLSCH buffer for each logical channel
store_dlsch_buffer
(
Mod_id
,
slice_id
,
frameP
,
subframeP
);
rnti
=
UE_RNTI
(
Mod_id
,
UE_id
);
// 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
);
// LOG_D(MAC,"UE %d rnti 0x\n", UE_id, rnti );
if
(
rnti
==
NOT_A_RNTI
)
continue
;
if
(
UE_list
->
UE_sched_ctrl
[
UE_id
].
ul_out_of_sync
==
1
)
continue
;
if
(
!
ue_slice_membership
(
i
,
slice_id
))
continue
;
transmission_mode
=
get_tmode
(
Mod_id
,
CC_id
,
UE_id
);
// mac_xface->get_ue_active_harq_pid(Mod_id,CC_id,rnti,frameP,subframeP,&harq_pid,&round,0);
//rrc_status = mac_eNB_get_rrc_status(Mod_id,rnti);
/* 1st allocate for the retx */
// retransmission in data channels
// control channel in the 1st transmission
// data channel for all TM
LOG_T
(
MAC
,
"calling dlsch_scheduler_pre_processor_allocate ..
\n
"
);
dlsch_scheduler_pre_processor_allocate
(
Mod_id
,
UE_id
,
CC_id
,
N_RBG
[
CC_id
],
transmission_mode
,
min_rb_unit
[
CC_id
],
to_prb
(
RC
.
mac
[
Mod_id
]
->
common_channels
[
CC_id
].
mib
->
message
.
dl_Bandwidth
),
nb_rbs_required
,
nb_rbs_required_remaining
,
rballoc_sub
,
MIMO_mode_indicator
);
// Sorts the user on the basis of dlsch logical channel buffer and CQI
sort_UEs
(
Mod_id
,
slice_id
,
frameP
,
subframeP
);
#ifdef TM5
// This function does the main allocation of the number of RBs
dlsch_scheduler_pre_processor_accounting
(
Mod_id
,
slice_id
,
frameP
,
subframeP
,
N_RBG
,
min_rb_unit
,
rballoc_sub
,
MIMO_mode_indicator
,
nb_rbs_required
);
// data chanel TM5: to be revisted
if
((
round
==
0
)
&&
(
transmission_mode
==
5
)
&&
(
ue_sched_ctl
->
dl_pow_off
[
CC_id
]
!=
1
))
{
for
(
j
=
0
;
j
<
N_RBG
[
CC_id
];
j
+=
2
)
{
if
((((
j
==
(
N_RBG
[
CC_id
]
-
1
))
&&
(
rballoc_sub
[
CC_id
][
j
]
==
0
)
&&
(
ue_sched_ctl
->
rballoc_sub_UE
[
CC_id
][
j
]
==
0
))
||
((
j
<
(
N_RBG
[
CC_id
]
-
1
))
&&
(
rballoc_sub
[
CC_id
][
j
+
1
]
==
0
)
&&
(
ue_sched_ctl
->
rballoc_sub_UE
[
CC_id
][
j
+
1
]
==
0
)))
&&
(
nb_rbs_required_remaining
[
CC_id
][
UE_id
]
>
0
))
{
for
(
ii
=
UE_list
->
next
[
i
+
1
];
ii
>=
0
;
ii
=
UE_list
->
next
[
ii
])
{
UE_id2
=
ii
;
rnti2
=
UE_RNTI
(
Mod_id
,
UE_id2
);
ue_sched_ctl2
=
&
UE_list
->
UE_sched_ctrl
[
UE_id2
];
round2
=
ue_sched_ctl2
->
round
[
CC_id
];
if
(
rnti2
==
NOT_A_RNTI
)
continue
;
if
(
UE_list
->
UE_sched_ctrl
[
UE_id2
].
ul_out_of_sync
==
1
)
continue
;
eNB_UE_stats2
=
UE_list
->
eNB_UE_stats
[
CC_id
][
UE_id2
];
//mac_xface->get_ue_active_harq_pid(Mod_id,CC_id,rnti2,frameP,subframeP,&harq_pid2,&round2,0);
if
((
mac_eNB_get_rrc_status
(
Mod_id
,
rnti2
)
>=
RRC_RECONFIGURED
)
&&
(
round2
==
0
)
&&
(
get_tmode
(
Mod_id
,
CC_id
,
UE_id2
)
==
5
)
&&
(
ue_sched_ctl
->
dl_pow_off
[
CC_id
]
!=
1
))
{
if
((((
j
==
(
N_RBG
[
CC_id
]
-
1
))
&&
(
ue_sched_ctl
->
rballoc_sub_UE
[
CC_id
][
j
]
==
0
))
||
((
j
<
(
N_RBG
[
CC_id
]
-
1
))
&&
(
ue_sched_ctl
->
rballoc_sub_UE
[
CC_id
][
j
+
1
]
==
0
)))
&&
(
nb_rbs_required_remaining
[
CC_id
]
[
UE_id2
]
>
0
))
{
if
((((
eNB_UE_stats2
->
DL_pmi_single
^
eNB_UE_stats1
->
DL_pmi_single
)
<<
(
14
-
j
))
&
0xc000
)
==
0x4000
)
{
//MU-MIMO only for 25 RBs configuration
rballoc_sub
[
CC_id
][
j
]
=
1
;
ue_sched_ctl
->
rballoc_sub_UE
[
CC_id
]
[
j
]
=
1
;
ue_sched_ctl2
->
rballoc_sub_UE
[
CC_id
]
[
j
]
=
1
;
MIMO_mode_indicator
[
CC_id
]
[
j
]
=
0
;
if
(
j
<
N_RBG
[
CC_id
]
-
1
)
{
rballoc_sub
[
CC_id
][
j
+
1
]
=
1
;
ue_sched_ctl
->
rballoc_sub_UE
[
CC_id
][
j
+
1
]
=
1
;
ue_sched_ctl2
->
rballoc_sub_UE
[
CC_id
][
j
+
1
]
=
1
;
MIMO_mode_indicator
[
CC_id
][
j
+
1
]
=
0
;
}
ue_sched_ctl
->
dl_pow_off
[
CC_id
]
=
0
;
ue_sched_ctl2
->
dl_pow_off
[
CC_id
]
=
0
;
if
((
j
==
N_RBG
[
CC_id
]
-
1
)
&&
((
N_RB_DL
==
25
)
||
(
N_RB_DL
==
50
)))
{
nb_rbs_required_remaining
[
CC_id
][
UE_id
]
=
nb_rbs_required_remaining
[
CC_id
][
UE_id
]
-
min_rb_unit
[
CC_id
]
+
1
;
ue_sched_ctl
->
pre_nb_available_rbs
[
CC_id
]
=
ue_sched_ctl
->
pre_nb_available_rbs
[
CC_id
]
+
min_rb_unit
[
CC_id
]
-
1
;
nb_rbs_required_remaining
[
CC_id
][
UE_id2
]
=
nb_rbs_required_remaining
[
CC_id
][
UE_id2
]
-
min_rb_unit
[
CC_id
]
+
1
;
ue_sched_ctl2
->
pre_nb_available_rbs
[
CC_id
]
=
ue_sched_ctl2
->
pre_nb_available_rbs
[
CC_id
]
+
min_rb_unit
[
CC_id
]
-
1
;
}
else
{
nb_rbs_required_remaining
[
CC_id
][
UE_id
]
=
nb_rbs_required_remaining
[
CC_id
][
UE_id
]
-
4
;
ue_sched_ctl
->
pre_nb_available_rbs
[
CC_id
]
=
ue_sched_ctl
->
pre_nb_available_rbs
[
CC_id
]
+
4
;
nb_rbs_required_remaining
[
CC_id
][
UE_id2
]
=
nb_rbs_required_remaining
[
CC_id
][
UE_id2
]
-
4
;
ue_sched_ctl2
->
pre_nb_available_rbs
[
CC_id
]
=
ue_sched_ctl2
->
pre_nb_available_rbs
[
CC_id
]
+
4
;
}
break
;
}
}
}
}
}
}
}
#endif
}
// total_ue_count
}
}
}
// end of for for r1 and r2
#ifdef TM5
// This has to be revisited!!!!
for
(
CC_id
=
0
;
CC_id
<
MAX_NUM_CCs
;
CC_id
++
)
{
i1
=
0
;
i2
=
0
;
i3
=
0
;
for
(
j
=
0
;
j
<
N_RBG
[
CC_id
];
j
++
)
{
if
(
MIMO_mode_indicator
[
CC_id
][
j
]
==
2
)
{
i1
=
i1
+
1
;
}
else
if
(
MIMO_mode_indicator
[
CC_id
][
j
]
==
1
)
{
i2
=
i2
+
1
;
}
else
if
(
MIMO_mode_indicator
[
CC_id
][
j
]
==
0
)
{
i3
=
i3
+
1
;
}
}
// This has to be revisited!!!!
for
(
CC_id
=
0
;
CC_id
<
MAX_NUM_CCs
;
CC_id
++
)
{
i1
=
0
;
i2
=
0
;
i3
=
0
;
for
(
j
=
0
;
j
<
N_RBG
[
CC_id
];
j
++
)
{
if
(
MIMO_mode_indicator
[
CC_id
][
j
]
==
2
)
{
i1
=
i1
+
1
;
}
else
if
(
MIMO_mode_indicator
[
CC_id
][
j
]
==
1
)
{
i2
=
i2
+
1
;
}
else
if
(
MIMO_mode_indicator
[
CC_id
][
j
]
==
0
)
{
i3
=
i3
+
1
;
}
}
if
((
i1
<
N_RBG
[
CC_id
])
&&
(
i2
>
0
)
&&
(
i3
==
0
))
{
PHY_vars_eNB_g
[
Mod_id
][
CC_id
]
->
check_for_SUMIMO_transmissions
=
PHY_vars_eNB_g
[
Mod_id
][
CC_id
]
->
check_for_SUMIMO_transmissions
+
1
;
}
if
((
i1
<
N_RBG
[
CC_id
])
&&
(
i2
>
0
)
&&
(
i3
==
0
))
{
PHY_vars_eNB_g
[
Mod_id
][
CC_id
]
->
check_for_SUMIMO_transmissions
=
PHY_vars_eNB_g
[
Mod_id
][
CC_id
]
->
check_for_SUMIMO_transmissions
+
1
;
}
if
(
i3
==
N_RBG
[
CC_id
]
&&
i1
==
0
&&
i2
==
0
)
{
PHY_vars_eNB_g
[
Mod_id
][
CC_id
]
->
FULL_MUMIMO_transmissions
=
PHY_vars_eNB_g
[
Mod_id
][
CC_id
]
->
FULL_MUMIMO_transmissions
+
1
;
}
if
(
i3
==
N_RBG
[
CC_id
]
&&
i1
==
0
&&
i2
==
0
)
{
PHY_vars_eNB_g
[
Mod_id
][
CC_id
]
->
FULL_MUMIMO_transmissions
=
PHY_vars_eNB_g
[
Mod_id
][
CC_id
]
->
FULL_MUMIMO_transmissions
+
1
;
}
if
((
i1
<
N_RBG
[
CC_id
])
&&
(
i3
>
0
))
{
PHY_vars_eNB_g
[
Mod_id
][
CC_id
]
->
check_for_MUMIMO_transmissions
=
PHY_vars_eNB_g
[
Mod_id
][
CC_id
]
->
check_for_MUMIMO_transmissions
+
1
;
}
if
((
i1
<
N_RBG
[
CC_id
])
&&
(
i3
>
0
))
{
PHY_vars_eNB_g
[
Mod_id
][
CC_id
]
->
check_for_MUMIMO_transmissions
=
PHY_vars_eNB_g
[
Mod_id
][
CC_id
]
->
check_for_MUMIMO_transmissions
+
1
;
}
PHY_vars_eNB_g
[
Mod_id
][
CC_id
]
->
check_for_total_transmissions
=
PHY_vars_eNB_g
[
Mod_id
][
CC_id
]
->
check_for_total_transmissions
+
1
;
}
PHY_vars_eNB_g
[
Mod_id
][
CC_id
]
->
check_for_total_transmissions
=
PHY_vars_eNB_g
[
Mod_id
][
CC_id
]
->
check_for_total_transmissions
+
1
;
}
#endif
for
(
i
=
UE_list
->
head
;
i
>=
0
;
i
=
UE_list
->
next
[
i
])
{
UE_id
=
i
;
ue_sched_ctl
=
&
UE_list
->
UE_sched_ctrl
[
UE_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
++
)
{
CC_id
=
UE_list
->
ordered_CCids
[
ii
][
UE_id
];
//PHY_vars_eNB_g[Mod_id]->mu_mimo_mode[UE_id].dl_pow_off = dl_pow_off[UE_id];
ue_sched_ctl
=
&
UE_list
->
UE_sched_ctrl
[
UE_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];
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
++
)
{
//PHY_vars_eNB_g[Mod_id]->mu_mimo_mode[UE_id].rballoc_sub[i] = rballoc_sub_UE[CC_id][UE_id][i];
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
]);
}
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
);
//PHY_vars_eNB_g[Mod_id]->mu_mimo_mode[UE_id].pre_nb_available_rbs = pre_nb_available_rbs[CC_id][UE_id];
LOG_D
(
MAC
,
"[eNB %d][SLICE %d]Total RBs allocated for UE%d = %d
\n
"
,
Mod_id
,
slice_id
,
UE_id
,
ue_sched_ctl
->
pre_nb_available_rbs
[
CC_id
]);
}
}
for
(
j
=
0
;
j
<
N_RBG
[
CC_id
];
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
]);
}
//PHY_vars_eNB_g[Mod_id]->mu_mimo_mode[UE_id].pre_nb_available_rbs = pre_nb_available_rbs[CC_id][UE_id];
LOG_D
(
MAC
,
"[eNB %d][SLICE %d]Total RBs allocated for UE%d = %d
\n
"
,
Mod_id
,
slice_id
,
UE_id
,
ue_sched_ctl
->
pre_nb_available_rbs
[
CC_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
[
MAX_NUM_CCs
]
[
NUMBER_OF_UE_MAX
],
uint16_t
nb_rbs_required_remaining
[
MAX_NUM_CCs
][
NUMBER_OF_UE_MAX
],
unsigned
char
total_ue_count
[
MAX_NUM_CCs
],
unsigned
char
total_rbs_used
[
MAX_NUM_CCs
],
unsigned
char
rballoc_sub
[
MAX_NUM_CCs
]
[
N_RBG_MAX
],
unsigned
char
MIMO_mode_indicator
[
MAX_NUM_CCs
]
[
N_RBG_MAX
])
int
UE_id
,
uint8_t
CC_id
,
int
frameP
,
int
subframeP
,
int
N_RBG
,
uint16_t
nb_rbs_required
[
MAX_NUM_CCs
]
[
NUMBER_OF_UE_MAX
],
unsigned
char
rballoc_sub
[
MAX_NUM_CCs
]
[
N_RBG_MAX
],
unsigned
char
MIMO_mode_indicator
[
MAX_NUM_CCs
]
[
N_RBG_MAX
])
{
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
];
rnti_t
rnti
=
UE_RNTI
(
module_idP
,
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
;
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
];
rnti_t
rnti
=
UE_RNTI
(
module_idP
,
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
;
int
sf0_upper
=
-
1
,
sf0_lower
=
-
1
;
#endif
LOG_D
(
MAC
,
"Running preprocessor for UE %d (%x)
\n
"
,
UE_id
,
rnti
);
// initialize harq_pid and round
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
--
;
if
(
ue_sched_ctl
->
ta_timer
)
ue_sched_ctl
->
ta_timer
--
;
/*
eNB_UE_stats *eNB_UE_stats;
...
...
@@ -1234,95 +1237,96 @@ dlsch_scheduler_pre_processor_reset(int module_idP,
}
*/
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
;
nb_rbs_required_remaining
[
CC_id
][
UE_id
]
=
0
;
total_ue_count
[
CC_id
]
=
0
;
total_rbs_used
[
CC_id
]
=
0
;
switch
(
N_RB_DL
)
{
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
;
RBGsize
=
1
;
RBGsize_last
=
1
;
break
;
case
15
:
RBGsize
=
2
;
RBGsize_last
=
1
;
break
;
RBGsize
=
2
;
RBGsize_last
=
1
;
break
;
case
25
:
RBGsize
=
2
;
RBGsize_last
=
1
;
break
;
RBGsize
=
2
;
RBGsize_last
=
1
;
break
;
case
50
:
RBGsize
=
3
;
RBGsize_last
=
2
;
break
;
RBGsize
=
3
;
RBGsize_last
=
2
;
break
;
case
75
:
RBGsize
=
4
;
RBGsize_last
=
3
;
break
;
RBGsize
=
4
;
RBGsize_last
=
3
;
break
;
case
100
:
RBGsize
=
4
;
RBGsize_last
=
4
;
break
;
RBGsize
=
4
;
RBGsize_last
=
4
;
break
;
default:
AssertFatal
(
1
==
0
,
"unsupported RBs (%d)
\n
"
,
N_RB_DL
);
}
AssertFatal
(
1
==
0
,
"unsupported RBs (%d)
\n
"
,
N_RB_DL
);
}
#ifdef SF0_LIMIT
switch
(
N_RBG
)
{
switch
(
N_RBG
)
{
case
6
:
sf0_lower
=
0
;
sf0_upper
=
5
;
break
;
sf0_lower
=
0
;
sf0_upper
=
5
;
break
;
case
8
:
sf0_lower
=
2
;
sf0_upper
=
5
;
break
;
sf0_lower
=
2
;
sf0_upper
=
5
;
break
;
case
13
:
sf0_lower
=
4
;
sf0_upper
=
7
;
break
;
sf0_lower
=
4
;
sf0_upper
=
7
;
break
;
case
17
:
sf0_lower
=
7
;
sf0_upper
=
9
;
break
;
sf0_lower
=
7
;
sf0_upper
=
9
;
break
;
case
25
:
sf0_lower
=
11
;
sf0_upper
=
13
;
break
;
sf0_lower
=
11
;
sf0_upper
=
13
;
break
;
default:
AssertFatal
(
1
==
0
,
"unsupported RBs (%d)
\n
"
,
N_RB_DL
);
}
AssertFatal
(
1
==
0
,
"unsupported RBs (%d)
\n
"
,
N_RB_DL
);
}
#endif
// Initialize Subbands according to VRB map
for
(
i
=
0
;
i
<
N_RBG
;
i
++
)
{
int
rb_size
=
i
==
N_RBG
-
1
?
RBGsize_last
:
RBGsize
;
ue_sched_ctl
->
rballoc_sub_UE
[
CC_id
][
i
]
=
0
;
rballoc_sub
[
CC_id
][
i
]
=
0
;
// Initialize Subbands according to VRB map
for
(
i
=
0
;
i
<
N_RBG
;
i
++
)
{
int
rb_size
=
i
==
N_RBG
-
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
;
// 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
;
// 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
;
}
}
...
...
openair2/LAYER2/MAC/proto.h
View file @
4fb2e609
...
...
@@ -209,11 +209,6 @@ void dlsch_scheduler_pre_processor_reset(int module_idP, int UE_id,
uint16_t
nb_rbs_required
[
MAX_NUM_CCs
]
[
NUMBER_OF_UE_MAX
],
uint16_t
nb_rbs_required_remaining
[
MAX_NUM_CCs
][
NUMBER_OF_UE_MAX
],
unsigned
char
total_ue_count
[
MAX_NUM_CCs
],
unsigned
char
total_rbs_used
[
MAX_NUM_CCs
],
unsigned
char
rballoc_sub
[
MAX_NUM_CCs
]
[
N_RBG_MAX
],
...
...
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