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littleBu
OpenXG-RAN
Commits
1e36c48c
Commit
1e36c48c
authored
2 years ago
by
Thomas Schlichter
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fix application of measured SSS fine frequency offset
parent
e28fccc7
Changes
1
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1 changed file
with
2 additions
and
7 deletions
+2
-7
openair1/PHY/NR_UE_TRANSPORT/nr_initial_sync.c
openair1/PHY/NR_UE_TRANSPORT/nr_initial_sync.c
+2
-7
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openair1/PHY/NR_UE_TRANSPORT/nr_initial_sync.c
View file @
1e36c48c
...
...
@@ -207,7 +207,6 @@ int nr_initial_sync(UE_nr_rxtx_proc_t *proc,
{
int32_t
sync_pos
,
sync_pos_frame
;
// k_ssb, N_ssb_crb, sync_pos2,
int32_t
accumulated_freq_offset
=
0
;
int32_t
metric_tdd_ncp
=
0
;
uint8_t
phase_tdd_ncp
;
double
im
,
re
;
...
...
@@ -258,8 +257,6 @@ int nr_initial_sync(UE_nr_rxtx_proc_t *proc,
LOG_I
(
PHY
,
"sync_pos %d ssb_offset %d
\n
"
,
sync_pos
,
ue
->
ssb_offset
);
#endif
accumulated_freq_offset
+=
ue
->
common_vars
.
freq_offset
;
// digital compensation of FFO for SSB symbols
if
(
ue
->
UE_fo_compensation
){
double
s_time
=
1
/
(
1.0e3
*
fp
->
samples_per_subframe
);
// sampling time
...
...
@@ -310,8 +307,6 @@ int nr_initial_sync(UE_nr_rxtx_proc_t *proc,
int
freq_offset_sss
=
0
;
ret
=
rx_sss_nr
(
ue
,
proc
,
&
metric_tdd_ncp
,
&
phase_tdd_ncp
,
&
freq_offset_sss
);
accumulated_freq_offset
+=
freq_offset_sss
;
// digital compensation of FFO for SSB symbols
if
(
ue
->
UE_fo_compensation
){
double
s_time
=
1
/
(
1.0e3
*
fp
->
samples_per_subframe
);
// sampling time
...
...
@@ -334,6 +329,8 @@ int nr_initial_sync(UE_nr_rxtx_proc_t *proc,
((
short
*
)
ue
->
common_vars
.
rxdata
[
ar
])[
2
*
n
+
1
]
=
(
short
)(
round
(
re
*
sin
(
n
*
off_angle
)
+
im
*
cos
(
n
*
off_angle
)));
}
}
ue
->
common_vars
.
freq_offset
+=
freq_offset_sss
;
}
if
(
ret
==
0
)
{
//we got sss channel
...
...
@@ -603,8 +600,6 @@ int nr_initial_sync(UE_nr_rxtx_proc_t *proc,
}
if
(
dec
==
false
)
// sib1 not decoded
ret
=
-
1
;
ue
->
common_vars
.
freq_offset
=
accumulated_freq_offset
;
}
// exit_fun("debug exit");
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
(
VCD_SIGNAL_DUMPER_FUNCTIONS_NR_INITIAL_UE_SYNC
,
VCD_FUNCTION_OUT
);
...
...
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