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canghaiwuhen
OpenXG-RAN
Commits
0124e537
Commit
0124e537
authored
Jun 06, 2020
by
Florian Kaltenberger
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adding possibility to read rx signal from file
parent
06ee95f4
Changes
1
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Showing
1 changed file
with
28 additions
and
3 deletions
+28
-3
openair1/SIMULATION/NR_PHY/prachsim.c
openair1/SIMULATION/NR_PHY/prachsim.c
+28
-3
No files found.
openair1/SIMULATION/NR_PHY/prachsim.c
View file @
0124e537
...
...
@@ -99,7 +99,9 @@ int main(int argc, char **argv){
// double prach_sinr;
// uint32_t nsymb;
// uint16_t preamble_max, preamble_energy_max;
FILE
*
input_fd
=
NULL
;
char
*
input_file
=
NULL
;
int
n_bytes
=
0
;
NR_DL_FRAME_PARMS
*
frame_parms
;
NR_PRACH_RESOURCES_t
prach_resources
;
...
...
@@ -292,6 +294,14 @@ int main(int argc, char **argv){
break
;
case
'F'
:
input_fd
=
fopen
(
optarg
,
"r"
);
input_file
=
optarg
;
if
(
input_fd
==
NULL
)
{
printf
(
"Problem with filename %s
\n
"
,
optarg
);
exit
(
-
1
);
}
break
;
default:
...
...
@@ -647,7 +657,7 @@ int main(int argc, char **argv){
for
(
trial
=
0
;
trial
<
n_frames
;
trial
++
)
{
if
(
input_fd
==
NULL
)
{
sigma2_dB
=
10
*
log10
((
double
)
tx_lev
)
-
SNR
-
10
*
log10
(
N_RB_UL
*
12
/
N_ZC
);
if
(
n_frames
==
1
)
...
...
@@ -673,6 +683,15 @@ int main(int argc, char **argv){
((
short
*
)
&
ru
->
common
.
rxdata
[
aa
][
rx_prach_start
])[
2
*
i
+
1
]
=
(
short
)
(.
167
*
(
r_im
[
aa
][
i
]
+
(
iqim
*
r_re
[
aa
][
i
])
+
sqrt
(
sigma2
/
2
)
*
gaussdouble
(
0
.
0
,
1
.
0
)));
}
}
}
else
{
n_bytes
=
fread
(
&
ru
->
common
.
rxdata
[
0
][
rx_prach_start
+
frame_parms
->
samples_per_subframe
/
2
],
sizeof
(
int32_t
),
frame_parms
->
samples_per_subframe
/
2
,
input_fd
);
printf
(
"fread %d bytes from file %s
\n
"
,
n_bytes
,
input_file
);
if
(
n_bytes
!=
frame_parms
->
samples_per_subframe
/
2
)
{
printf
(
"expected %d bytes
\n
"
,
frame_parms
->
samples_per_subframe
/
2
);
exit
(
-
1
);
}
}
rx_nr_prach_ru
(
ru
,
prach_format
,
numRA
,
prachStartSymbol
,
frame
,
slot
);
...
...
@@ -695,7 +714,7 @@ int main(int argc, char **argv){
LOG_M
(
"prach0.m"
,
"prach0"
,
&
txdata
[
0
][
prach_start
],
frame_parms
->
samples_per_subframe
,
1
,
1
);
LOG_M
(
"prachF0.m"
,
"prachF0"
,
&
gNB
->
prach_vars
.
prachF
[
0
],
N_ZC
,
1
,
1
);
LOG_M
(
"rxsig0.m"
,
"rxs0"
,
&
gNB
->
common_vars
.
rxdata
[
0
][
rx_prach_start
],
frame_parms
->
samples_per_subframe
,
1
,
1
);
//
LOG_M("ru_rxsig0.m","rxs0", &ru->common.rxdata[0][rx_prach_start], frame_parms->samples_per_subframe, 1, 1);
LOG_M
(
"ru_rxsig0.m"
,
"rxs0"
,
&
ru
->
common
.
rxdata
[
0
][
rx_prach_start
],
frame_parms
->
samples_per_subframe
,
1
,
1
);
LOG_M
(
"rxsigF0.m"
,
"rxsF0"
,
gNB
->
prach_vars
.
rxsigF
[
0
],
N_ZC
,
1
,
1
);
LOG_M
(
"prach_preamble.m"
,
"prachp"
,
&
gNB
->
X_u
[
0
],
N_ZC
,
1
,
1
);
LOG_M
(
"ue_prach_preamble.m"
,
"prachp"
,
&
UE
->
X_u
[
0
],
N_ZC
,
1
,
1
);
...
...
@@ -703,6 +722,8 @@ int main(int argc, char **argv){
}
}
printf
(
"SNR %f dB, UE Speed %f km/h: errors %d/%d (delay %f)
\n
"
,
SNR
,
ue_speed
,
prach_errors
,
n_frames
,
delay_avg
/
(
double
)(
n_frames
-
prach_errors
));
if
(
input_fd
)
break
;
if
(
prach_errors
)
break
;
}
// UE Speed loop
...
...
@@ -710,6 +731,8 @@ int main(int argc, char **argv){
printf
(
"PRACH test OK
\n
"
);
break
;
}
if
(
input_fd
)
break
;
}
//SNR loop
for
(
i
=
0
;
i
<
2
;
i
++
)
{
...
...
@@ -724,5 +747,7 @@ int main(int argc, char **argv){
free
(
r_re
);
free
(
r_im
);
if
(
input_fd
)
fclose
(
input_fd
);
return
(
0
);
}
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