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wangjie
OpenXG-RAN
Commits
465529ce
Commit
465529ce
authored
Feb 22, 2021
by
francescomani
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adapting scheduling csirs for multi UE (to be verified)
parent
ba02f61f
Changes
3
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3 changed files
with
130 additions
and
126 deletions
+130
-126
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c
+1
-1
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c
+129
-124
openair2/LAYER2/NR_MAC_gNB/mac_proto.h
openair2/LAYER2/NR_MAC_gNB/mac_proto.h
+0
-1
No files found.
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c
View file @
465529ce
...
@@ -422,7 +422,7 @@ void gNB_dlsch_ulsch_scheduler(module_id_t module_idP,
...
@@ -422,7 +422,7 @@ void gNB_dlsch_ulsch_scheduler(module_id_t module_idP,
// TODO
// TODO
// Schedule CSI-RS transmission
// Schedule CSI-RS transmission
//nr_csirs_scheduling(module_idP, UE_id, frame, slot,
slots_per_frame[*scc->ssbSubcarrierSpacing]);
nr_csirs_scheduling
(
module_idP
,
frame
,
slot
,
nr_
slots_per_frame
[
*
scc
->
ssbSubcarrierSpacing
]);
// Schedule CSI measurement reporting: check in slot 0 for the whole frame
// Schedule CSI measurement reporting: check in slot 0 for the whole frame
if
(
slot
==
0
)
if
(
slot
==
0
)
...
...
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c
View file @
465529ce
...
@@ -1803,147 +1803,152 @@ void get_pdsch_to_harq_feedback(int Mod_idP,
...
@@ -1803,147 +1803,152 @@ void get_pdsch_to_harq_feedback(int Mod_idP,
void
nr_csirs_scheduling
(
int
Mod_idP
,
void
nr_csirs_scheduling
(
int
Mod_idP
,
int
UE_id
,
frame_t
frame
,
frame_t
frame
,
sub_frame_t
slot
,
sub_frame_t
slot
,
int
n_slots_frame
){
int
n_slots_frame
){
int
CC_id
=
0
;
int
CC_id
=
0
;
NR_UE_info_t
*
UE_info
=
&
RC
.
nrmac
[
Mod_idP
]
->
UE_info
;
NR_UE_info_t
*
UE_info
=
&
RC
.
nrmac
[
Mod_idP
]
->
UE_info
;
NR_UE_sched_ctrl_t
*
sched_ctrl
=
&
UE_info
->
UE_sched_ctrl
[
UE_id
];
NR_list_t
*
UE_list
=
&
UE_info
->
list
;
NR_CellGroupConfig_t
*
secondaryCellGroup
=
UE_info
->
secondaryCellGroup
[
UE_id
];
NR_CSI_MeasConfig_t
*
csi_measconfig
=
secondaryCellGroup
->
spCellConfig
->
spCellConfigDedicated
->
csi_MeasConfig
->
choice
.
setup
;
NR_NZP_CSI_RS_Resource_t
*
nzpcsi
;
int
period
,
offset
;
gNB_MAC_INST
*
gNB_mac
=
RC
.
nrmac
[
Mod_idP
];
gNB_MAC_INST
*
gNB_mac
=
RC
.
nrmac
[
Mod_idP
];
uint8_t
*
vrb_map
=
RC
.
nrmac
[
Mod_idP
]
->
common_channels
[
CC_id
].
vrb_map
;
uint16_t
*
vrb_map
=
gNB_mac
->
common_channels
[
CC_id
].
vrb_map
;
nfapi_nr_dl_tti_request_body_t
*
dl_req
=
&
gNB_mac
->
DL_req
[
CC_id
].
dl_tti_request_body
;
NR_BWP_Downlink_t
*
bwp
=
secondaryCellGroup
->
spCellConfig
->
spCellConfigDedicated
->
downlinkBWP_ToAddModList
->
list
.
array
[
sched_ctrl
->
active_bwp
->
bwp_Id
-
1
];
AssertFatal
(
csi_measconfig
->
nzp_CSI_RS_ResourceToAddModList
->
list
.
count
>
0
,
"NO CSI report configuration available"
);
for
(
int
UE_id
=
UE_list
->
head
;
UE_id
>=
0
;
UE_id
=
UE_list
->
next
[
UE_id
])
{
for
(
int
id
=
0
;
id
<
csi_measconfig
->
nzp_CSI_RS_ResourceToAddModList
->
list
.
count
;
id
++
){
NR_UE_sched_ctrl_t
*
sched_ctrl
=
&
UE_info
->
UE_sched_ctrl
[
UE_id
];
nzpcsi
=
csi_measconfig
->
nzp_CSI_RS_ResourceToAddModList
->
list
.
array
[
id
];
NR_CellGroupConfig_t
*
secondaryCellGroup
=
UE_info
->
secondaryCellGroup
[
UE_id
];
NR_CSI_RS_ResourceMapping_t
resourceMapping
=
nzpcsi
->
resourceMapping
;
NR_CSI_MeasConfig_t
*
csi_measconfig
=
secondaryCellGroup
->
spCellConfig
->
spCellConfigDedicated
->
csi_MeasConfig
->
choice
.
setup
;
csi_period_offset
(
NULL
,
nzpcsi
,
&
period
,
&
offset
);
NR_NZP_CSI_RS_Resource_t
*
nzpcsi
;
int
period
,
offset
;
if
((
frame
*
n_slots_frame
+
slot
-
offset
)
%
period
==
0
)
{
nfapi_nr_dl_tti_request_body_t
*
dl_req
=
&
gNB_mac
->
DL_req
[
CC_id
].
dl_tti_request_body
;
NR_BWP_Downlink_t
*
bwp
=
secondaryCellGroup
->
spCellConfig
->
spCellConfigDedicated
->
downlinkBWP_ToAddModList
->
list
.
array
[
sched_ctrl
->
active_bwp
->
bwp_Id
-
1
];
LOG_I
(
MAC
,
"Scheduling CSI-RS in frame %d slot %d
\n
"
,
frame
,
slot
);
AssertFatal
(
csi_measconfig
->
nzp_CSI_RS_ResourceToAddModList
->
list
.
count
>
0
,
"NO CSI report configuration available"
);
nfapi_nr_dl_tti_request_pdu_t
*
dl_tti_csirs_pdu
=
&
dl_req
->
dl_tti_pdu_list
[
dl_req
->
nPDUs
];
for
(
int
id
=
0
;
id
<
csi_measconfig
->
nzp_CSI_RS_ResourceToAddModList
->
list
.
count
;
id
++
){
memset
((
void
*
)
dl_tti_csirs_pdu
,
0
,
sizeof
(
nfapi_nr_dl_tti_request_pdu_t
))
;
nzpcsi
=
csi_measconfig
->
nzp_CSI_RS_ResourceToAddModList
->
list
.
array
[
id
]
;
dl_tti_csirs_pdu
->
PDUType
=
NFAPI_NR_DL_TTI_CSI_RS_PDU_TYPE
;
NR_CSI_RS_ResourceMapping_t
resourceMapping
=
nzpcsi
->
resourceMapping
;
dl_tti_csirs_pdu
->
PDUSize
=
(
uint8_t
)(
2
+
sizeof
(
nfapi_nr_dl_tti_csi_rs_pdu
)
);
csi_period_offset
(
NULL
,
nzpcsi
,
&
period
,
&
offset
);
nfapi_nr_dl_tti_csi_rs_pdu_rel15_t
*
csirs_pdu_rel15
=
&
dl_tti_csirs_pdu
->
csi_rs_pdu
.
csi_rs_pdu_rel15
;
if
((
frame
*
n_slots_frame
+
slot
-
offset
)
%
period
==
0
)
{
csirs_pdu_rel15
->
bwp_size
=
NRRIV2BW
(
bwp
->
bwp_Common
->
genericParameters
.
locationAndBandwidth
,
275
);
LOG_I
(
MAC
,
"Scheduling CSI-RS in frame %d slot %d
\n
"
,
frame
,
slot
);
csirs_pdu_rel15
->
bwp_start
=
NRRIV2PRBOFFSET
(
bwp
->
bwp_Common
->
genericParameters
.
locationAndBandwidth
,
275
);
csirs_pdu_rel15
->
subcarrier_spacing
=
bwp
->
bwp_Common
->
genericParameters
.
subcarrierSpacing
;
nfapi_nr_dl_tti_request_pdu_t
*
dl_tti_csirs_pdu
=
&
dl_req
->
dl_tti_pdu_list
[
dl_req
->
nPDUs
];
if
(
bwp
->
bwp_Common
->
genericParameters
.
cyclicPrefix
)
memset
((
void
*
)
dl_tti_csirs_pdu
,
0
,
sizeof
(
nfapi_nr_dl_tti_request_pdu_t
));
csirs_pdu_rel15
->
cyclic_prefix
=
*
bwp
->
bwp_Common
->
genericParameters
.
cyclicPrefix
;
dl_tti_csirs_pdu
->
PDUType
=
NFAPI_NR_DL_TTI_CSI_RS_PDU_TYPE
;
else
dl_tti_csirs_pdu
->
PDUSize
=
(
uint8_t
)(
2
+
sizeof
(
nfapi_nr_dl_tti_csi_rs_pdu
));
csirs_pdu_rel15
->
cyclic_prefix
=
0
;
nfapi_nr_dl_tti_csi_rs_pdu_rel15_t
*
csirs_pdu_rel15
=
&
dl_tti_csirs_pdu
->
csi_rs_pdu
.
csi_rs_pdu_rel15
;
csirs_pdu_rel15
->
start_rb
=
resourceMapping
.
freqBand
.
startingRB
;
csirs_pdu_rel15
->
nr_of_rbs
=
resourceMapping
.
freqBand
.
nrofRBs
;
csirs_pdu_rel15
->
bwp_size
=
NRRIV2BW
(
bwp
->
bwp_Common
->
genericParameters
.
locationAndBandwidth
,
275
);
csirs_pdu_rel15
->
csi_type
=
1
;
// NZP-CSI-RS
csirs_pdu_rel15
->
bwp_start
=
NRRIV2PRBOFFSET
(
bwp
->
bwp_Common
->
genericParameters
.
locationAndBandwidth
,
275
);
csirs_pdu_rel15
->
symb_l0
=
resourceMapping
.
firstOFDMSymbolInTimeDomain
;
csirs_pdu_rel15
->
subcarrier_spacing
=
bwp
->
bwp_Common
->
genericParameters
.
subcarrierSpacing
;
if
(
resourceMapping
.
firstOFDMSymbolInTimeDomain2
)
if
(
bwp
->
bwp_Common
->
genericParameters
.
cyclicPrefix
)
csirs_pdu_rel15
->
symb_l1
=
*
resourceMapping
.
firstOFDMSymbolInTimeDomain2
;
csirs_pdu_rel15
->
cyclic_prefix
=
*
bwp
->
bwp_Common
->
genericParameters
.
cyclicPrefix
;
csirs_pdu_rel15
->
cdm_type
=
resourceMapping
.
cdm_Type
;
else
csirs_pdu_rel15
->
freq_density
=
resourceMapping
.
density
.
present
;
csirs_pdu_rel15
->
cyclic_prefix
=
0
;
if
((
resourceMapping
.
density
.
present
==
NR_CSI_RS_ResourceMapping__density_PR_dot5
)
&&
(
resourceMapping
.
density
.
choice
.
dot5
==
NR_CSI_RS_ResourceMapping__density__dot5_evenPRBs
))
csirs_pdu_rel15
->
start_rb
=
resourceMapping
.
freqBand
.
startingRB
;
csirs_pdu_rel15
->
freq_density
--
;
csirs_pdu_rel15
->
nr_of_rbs
=
resourceMapping
.
freqBand
.
nrofRBs
;
csirs_pdu_rel15
->
scramb_id
=
nzpcsi
->
scramblingID
;
csirs_pdu_rel15
->
csi_type
=
1
;
// NZP-CSI-RS
csirs_pdu_rel15
->
power_control_offset
=
nzpcsi
->
powerControlOffset
+
8
;
csirs_pdu_rel15
->
symb_l0
=
resourceMapping
.
firstOFDMSymbolInTimeDomain
;
if
(
nzpcsi
->
powerControlOffsetSS
)
if
(
resourceMapping
.
firstOFDMSymbolInTimeDomain2
)
csirs_pdu_rel15
->
power_control_offset_ss
=
*
nzpcsi
->
powerControlOffsetSS
;
csirs_pdu_rel15
->
symb_l1
=
*
resourceMapping
.
firstOFDMSymbolInTimeDomain2
;
else
csirs_pdu_rel15
->
cdm_type
=
resourceMapping
.
cdm_Type
;
csirs_pdu_rel15
->
power_control_offset_ss
=
1
;
// 0 dB
csirs_pdu_rel15
->
freq_density
=
resourceMapping
.
density
.
present
;
switch
(
resourceMapping
.
frequencyDomainAllocation
.
present
){
if
((
resourceMapping
.
density
.
present
==
NR_CSI_RS_ResourceMapping__density_PR_dot5
)
case
NR_CSI_RS_ResourceMapping__frequencyDomainAllocation_PR_row1
:
&&
(
resourceMapping
.
density
.
choice
.
dot5
==
NR_CSI_RS_ResourceMapping__density__dot5_evenPRBs
))
csirs_pdu_rel15
->
row
=
1
;
csirs_pdu_rel15
->
freq_density
--
;
csirs_pdu_rel15
->
freq_domain
=
((
resourceMapping
.
frequencyDomainAllocation
.
choice
.
row1
.
buf
[
0
])
>>
4
)
&
0x0f
;
csirs_pdu_rel15
->
scramb_id
=
nzpcsi
->
scramblingID
;
break
;
csirs_pdu_rel15
->
power_control_offset
=
nzpcsi
->
powerControlOffset
+
8
;
case
NR_CSI_RS_ResourceMapping__frequencyDomainAllocation_PR_row2
:
if
(
nzpcsi
->
powerControlOffsetSS
)
csirs_pdu_rel15
->
row
=
2
;
csirs_pdu_rel15
->
power_control_offset_ss
=
*
nzpcsi
->
powerControlOffsetSS
;
csirs_pdu_rel15
->
freq_domain
=
(((
resourceMapping
.
frequencyDomainAllocation
.
choice
.
row1
.
buf
[
1
]
>>
4
)
&
0x0f
)
|
else
((
resourceMapping
.
frequencyDomainAllocation
.
choice
.
row1
.
buf
[
0
]
<<
8
)
&
0xf0
));
csirs_pdu_rel15
->
power_control_offset_ss
=
1
;
// 0 dB
break
;
switch
(
resourceMapping
.
frequencyDomainAllocation
.
present
){
case
NR_CSI_RS_ResourceMapping__frequencyDomainAllocation_PR_row4
:
case
NR_CSI_RS_ResourceMapping__frequencyDomainAllocation_PR_row1
:
csirs_pdu_rel15
->
row
=
4
;
csirs_pdu_rel15
->
row
=
1
;
csirs_pdu_rel15
->
freq_domain
=
((
resourceMapping
.
frequencyDomainAllocation
.
choice
.
row1
.
buf
[
0
])
>>
5
)
&
0x0f
;
csirs_pdu_rel15
->
freq_domain
=
((
resourceMapping
.
frequencyDomainAllocation
.
choice
.
row1
.
buf
[
0
])
>>
4
)
&
0x0f
;
break
;
break
;
case
NR_CSI_RS_ResourceMapping__frequencyDomainAllocation_PR_other
:
case
NR_CSI_RS_ResourceMapping__frequencyDomainAllocation_PR_row2
:
csirs_pdu_rel15
->
freq_domain
=
((
resourceMapping
.
frequencyDomainAllocation
.
choice
.
row1
.
buf
[
0
])
>>
2
)
&
0x0f
;
csirs_pdu_rel15
->
row
=
2
;
// determining the row of table 7.4.1.5.3-1 in 38.211
csirs_pdu_rel15
->
freq_domain
=
(((
resourceMapping
.
frequencyDomainAllocation
.
choice
.
row1
.
buf
[
1
]
>>
4
)
&
0x0f
)
|
switch
(
resourceMapping
.
nrofPorts
){
((
resourceMapping
.
frequencyDomainAllocation
.
choice
.
row1
.
buf
[
0
]
<<
8
)
&
0xf0
));
case
NR_CSI_RS_ResourceMapping__nrofPorts_p1
:
break
;
break
;
case
NR_CSI_RS_ResourceMapping__frequencyDomainAllocation_PR_row4
:
case
NR_CSI_RS_ResourceMapping__nrofPorts_p2
:
csirs_pdu_rel15
->
row
=
4
;
csirs_pdu_rel15
->
row
=
3
;
csirs_pdu_rel15
->
freq_domain
=
((
resourceMapping
.
frequencyDomainAllocation
.
choice
.
row1
.
buf
[
0
])
>>
5
)
&
0x0f
;
break
;
break
;
case
NR_CSI_RS_ResourceMapping__nrofPorts_p4
:
case
NR_CSI_RS_ResourceMapping__frequencyDomainAllocation_PR_other
:
csirs_pdu_rel15
->
row
=
5
;
csirs_pdu_rel15
->
freq_domain
=
((
resourceMapping
.
frequencyDomainAllocation
.
choice
.
row1
.
buf
[
0
])
>>
2
)
&
0x0f
;
break
;
// determining the row of table 7.4.1.5.3-1 in 38.211
case
NR_CSI_RS_ResourceMapping__nrofPorts_p8
:
switch
(
resourceMapping
.
nrofPorts
){
if
(
resourceMapping
.
cdm_Type
==
NR_CSI_RS_ResourceMapping__cdm_Type_cdm4_FD2_TD2
)
case
NR_CSI_RS_ResourceMapping__nrofPorts_p1
:
csirs_pdu_rel15
->
row
=
8
;
break
;
else
{
case
NR_CSI_RS_ResourceMapping__nrofPorts_p2
:
int
num_k
=
0
;
csirs_pdu_rel15
->
row
=
3
;
for
(
int
k
=
0
;
k
<
6
;
k
++
)
break
;
num_k
+=
(((
csirs_pdu_rel15
->
freq_domain
)
>>
k
)
&
0x01
);
case
NR_CSI_RS_ResourceMapping__nrofPorts_p4
:
if
(
num_k
==
4
)
csirs_pdu_rel15
->
row
=
5
;
csirs_pdu_rel15
->
row
=
6
;
break
;
else
case
NR_CSI_RS_ResourceMapping__nrofPorts_p8
:
csirs_pdu_rel15
->
row
=
7
;
if
(
resourceMapping
.
cdm_Type
==
NR_CSI_RS_ResourceMapping__cdm_Type_cdm4_FD2_TD2
)
}
csirs_pdu_rel15
->
row
=
8
;
break
;
else
{
case
NR_CSI_RS_ResourceMapping__nrofPorts_p12
:
int
num_k
=
0
;
if
(
resourceMapping
.
cdm_Type
==
NR_CSI_RS_ResourceMapping__cdm_Type_cdm4_FD2_TD2
)
for
(
int
k
=
0
;
k
<
6
;
k
++
)
csirs_pdu_rel15
->
row
=
10
;
num_k
+=
(((
csirs_pdu_rel15
->
freq_domain
)
>>
k
)
&
0x01
);
else
if
(
num_k
==
4
)
csirs_pdu_rel15
->
row
=
9
;
csirs_pdu_rel15
->
row
=
6
;
break
;
else
case
NR_CSI_RS_ResourceMapping__nrofPorts_p16
:
csirs_pdu_rel15
->
row
=
7
;
if
(
resourceMapping
.
cdm_Type
==
NR_CSI_RS_ResourceMapping__cdm_Type_cdm4_FD2_TD2
)
}
csirs_pdu_rel15
->
row
=
12
;
break
;
else
case
NR_CSI_RS_ResourceMapping__nrofPorts_p12
:
csirs_pdu_rel15
->
row
=
11
;
if
(
resourceMapping
.
cdm_Type
==
NR_CSI_RS_ResourceMapping__cdm_Type_cdm4_FD2_TD2
)
break
;
csirs_pdu_rel15
->
row
=
10
;
case
NR_CSI_RS_ResourceMapping__nrofPorts_p24
:
if
(
resourceMapping
.
cdm_Type
==
NR_CSI_RS_ResourceMapping__cdm_Type_cdm4_FD2_TD2
)
csirs_pdu_rel15
->
row
=
14
;
else
{
if
(
resourceMapping
.
cdm_Type
==
NR_CSI_RS_ResourceMapping__cdm_Type_cdm8_FD2_TD4
)
csirs_pdu_rel15
->
row
=
15
;
else
else
csirs_pdu_rel15
->
row
=
13
;
csirs_pdu_rel15
->
row
=
9
;
}
break
;
break
;
case
NR_CSI_RS_ResourceMapping__nrofPorts_p16
:
case
NR_CSI_RS_ResourceMapping__nrofPorts_p32
:
if
(
resourceMapping
.
cdm_Type
==
NR_CSI_RS_ResourceMapping__cdm_Type_cdm4_FD2_TD2
)
if
(
resourceMapping
.
cdm_Type
==
NR_CSI_RS_ResourceMapping__cdm_Type_cdm4_FD2_TD2
)
csirs_pdu_rel15
->
row
=
12
;
csirs_pdu_rel15
->
row
=
17
;
else
{
if
(
resourceMapping
.
cdm_Type
==
NR_CSI_RS_ResourceMapping__cdm_Type_cdm8_FD2_TD4
)
csirs_pdu_rel15
->
row
=
18
;
else
else
csirs_pdu_rel15
->
row
=
16
;
csirs_pdu_rel15
->
row
=
11
;
}
break
;
break
;
case
NR_CSI_RS_ResourceMapping__nrofPorts_p24
:
default:
if
(
resourceMapping
.
cdm_Type
==
NR_CSI_RS_ResourceMapping__cdm_Type_cdm4_FD2_TD2
)
AssertFatal
(
1
==
0
,
"Invalid number of ports in CSI-RS resource
\n
"
);
csirs_pdu_rel15
->
row
=
14
;
}
else
{
break
;
if
(
resourceMapping
.
cdm_Type
==
NR_CSI_RS_ResourceMapping__cdm_Type_cdm8_FD2_TD4
)
default:
csirs_pdu_rel15
->
row
=
15
;
AssertFatal
(
1
==
0
,
"Invalid freqency domain allocation in CSI-RS resource
\n
"
);
else
csirs_pdu_rel15
->
row
=
13
;
}
break
;
case
NR_CSI_RS_ResourceMapping__nrofPorts_p32
:
if
(
resourceMapping
.
cdm_Type
==
NR_CSI_RS_ResourceMapping__cdm_Type_cdm4_FD2_TD2
)
csirs_pdu_rel15
->
row
=
17
;
else
{
if
(
resourceMapping
.
cdm_Type
==
NR_CSI_RS_ResourceMapping__cdm_Type_cdm8_FD2_TD4
)
csirs_pdu_rel15
->
row
=
18
;
else
csirs_pdu_rel15
->
row
=
16
;
}
break
;
default:
AssertFatal
(
1
==
0
,
"Invalid number of ports in CSI-RS resource
\n
"
);
}
break
;
default:
AssertFatal
(
1
==
0
,
"Invalid freqency domain allocation in CSI-RS resource
\n
"
);
}
dl_req
->
nPDUs
++
;
for
(
int
rb
=
csirs_pdu_rel15
->
start_rb
;
rb
<
csirs_pdu_rel15
->
nr_of_rbs
;
rb
++
)
vrb_map
[
rb
]
=
1
;
}
}
dl_req
->
nPDUs
++
;
for
(
int
rb
=
csirs_pdu_rel15
->
start_rb
;
rb
<
csirs_pdu_rel15
->
nr_of_rbs
;
rb
++
)
vrb_map
[
rb
]
=
1
;
}
}
}
}
}
}
...
...
openair2/LAYER2/NR_MAC_gNB/mac_proto.h
View file @
465529ce
...
@@ -183,7 +183,6 @@ void nr_schedule_pucch(int Mod_idP,
...
@@ -183,7 +183,6 @@ void nr_schedule_pucch(int Mod_idP,
sub_frame_t
slotP
);
sub_frame_t
slotP
);
void
nr_csirs_scheduling
(
int
Mod_idP
,
void
nr_csirs_scheduling
(
int
Mod_idP
,
int
UE_id
,
frame_t
frame
,
frame_t
frame
,
sub_frame_t
slot
,
sub_frame_t
slot
,
int
n_slots_frame
);
int
n_slots_frame
);
...
...
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