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Michael Black
OpenXG UE
Commits
cebd0ce4
Commit
cebd0ce4
authored
Oct 20, 2020
by
Florian Kaltenberger
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Plain Diff
handling beamforming also for PDSCH
parent
b0c60044
Changes
3
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3 changed files
with
25 additions
and
2 deletions
+25
-2
executables/nr-ru.c
executables/nr-ru.c
+5
-1
openair1/PHY/NR_TRANSPORT/nr_dlsch.c
openair1/PHY/NR_TRANSPORT/nr_dlsch.c
+18
-0
openair1/SCHED_NR/phy_procedures_nr_gNB.c
openair1/SCHED_NR/phy_procedures_nr_gNB.c
+2
-1
No files found.
executables/nr-ru.c
View file @
cebd0ce4
...
...
@@ -759,7 +759,11 @@ void tx_rf(RU_t *ru,int frame,int slot, uint64_t timestamp) {
// bit 11 enables the gpio programming
// currently we switch beams every 10 slots (should = 1 TDD period in FR2) and we take the beam index of the first symbol of the first slot of this period
int
beam
=
0
;
if
(
slot
%
10
==
0
)
beam
=
ru
->
common
.
beam_id
[
0
][
slot
*
fp
->
symbols_per_slot
]
&
8
;
if
(
slot
%
10
==
0
)
{
if
(
ru
->
common
.
beam_id
[
0
][
slot
*
fp
->
symbols_per_slot
]
<
8
)
{
beam
=
ru
->
common
.
beam_id
[
0
][
slot
*
fp
->
symbols_per_slot
]
&
8
;
}
}
/*
if (slot==0 || slot==40) beam=0&8;
if (slot==10 || slot==50) beam=1&8;
...
...
openair1/PHY/NR_TRANSPORT/nr_dlsch.c
View file @
cebd0ce4
...
...
@@ -333,7 +333,25 @@ uint8_t nr_generate_pdsch(PHY_VARS_gNB *gNB,
}
// symbol loop
}
// layer loop
dlsch
->
slot_tx
[
slot
]
=
0
;
// TODO: handle precoding
// this maps the layers onto antenna ports
// handle beamforming ID
// each antenna port is assigned a beam_index
// since PHY can only handle BF on slot basis we set the whole slot
// first check if this slot has not already been allocated to another beam
if
(
gNB
->
common_vars
.
beam_id
[
0
][
slot
*
frame_parms
->
symbols_per_slot
]
!=
255
)
{
for
(
int
j
=
0
;
j
<
frame_parms
->
symbols_per_slot
;
j
++
)
gNB
->
common_vars
.
beam_id
[
0
][
slot
*
frame_parms
->
symbols_per_slot
+
j
]
=
rel15
->
precodingAndBeamforming
.
prgs_list
[
0
].
dig_bf_interface_list
[
0
].
beam_idx
;
}
else
{
LOG_W
(
PHY
,
"beam index for PDSCH allocation already taken
\n
"
);
}
}
// dlsch loop
return
0
;
}
...
...
openair1/SCHED_NR/phy_procedures_nr_gNB.c
View file @
cebd0ce4
...
...
@@ -160,9 +160,10 @@ void phy_procedures_gNB_TX(PHY_VARS_gNB *gNB,
if
(
do_meas
==
1
)
start_meas
(
&
gNB
->
phy_proc_tx
);
// clear the transmit data array
for the current subframe
// clear the transmit data array
and beam index for the current slot
for
(
aa
=
0
;
aa
<
cfg
->
carrier_config
.
num_tx_ant
.
value
;
aa
++
)
{
memset
(
&
gNB
->
common_vars
.
txdataF
[
aa
][
txdataF_offset
],
0
,
fp
->
samples_per_slot_wCP
*
sizeof
(
int32_t
));
memset
(
&
gNB
->
common_vars
.
beam_id
[
aa
][
slot
*
fp
->
symbols_per_slot
],
255
,
fp
->
symbols_per_slot
*
sizeof
(
uint8_t
));
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
(
VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_gNB_COMMON_TX
,
1
);
...
...
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