Skip to content
GitLab
Projects
Groups
Snippets
Help
Loading...
Help
What's new
10
Help
Support
Community forum
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in / Register
Toggle navigation
Open sidebar
oai
openairinterface5G
Commits
02631868
Commit
02631868
authored
Oct 01, 2016
by
Rohit Gupta
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
compilation fixes for mbmssim
parent
0c08aa61
Changes
1
Hide whitespace changes
Inline
Side-by-side
Showing
1 changed file
with
59 additions
and
59 deletions
+59
-59
openair1/SIMULATION/LTE_PHY/mbmssim.c
openair1/SIMULATION/LTE_PHY/mbmssim.c
+59
-59
No files found.
openair1/SIMULATION/LTE_PHY/mbmssim.c
View file @
02631868
...
...
@@ -59,7 +59,7 @@ PHY_VARS_UE *PHY_vars_UE;
DCI1E_5MHz_2A_M10PRB_TDD_t
DLSCH_alloc_pdu2_1E
[
2
];
#define UL_RB_ALLOC 0x1ff;
#define CCCH_RB_ALLOC computeRIV(PHY_vars_eNB->
lte_
frame_parms.N_RB_UL,0,2)
#define CCCH_RB_ALLOC computeRIV(PHY_vars_eNB->frame_parms.N_RB_UL,0,2)
int
main
(
int
argc
,
char
**
argv
)
{
...
...
@@ -125,7 +125,7 @@ int main(int argc, char **argv)
logInit
();
number_of_cards
=
1
;
openair_daq_vars
.
rx_rf_mode
=
1
;
//
openair_daq_vars.rx_rf_mode = 1;
/*
rxdataF = (int **)malloc16(2*sizeof(int*));
...
...
@@ -266,7 +266,7 @@ int main(int argc, char **argv)
printf
(
"SNR0 %f, SNR1 %f
\n
"
,
snr0
,
snr1
);
frame_parms
=
&
PHY_vars_eNB
->
lte_
frame_parms
;
frame_parms
=
&
PHY_vars_eNB
->
frame_parms
;
if
(
awgn_flag
==
0
)
sprintf
(
fname
,
"embms_%d_%d.m"
,
mcs
,
N_RB_DL
);
...
...
@@ -292,7 +292,7 @@ int main(int argc, char **argv)
fflush
(
fd
);
txdata
=
PHY_vars_eNB
->
lte_eNB_
common_vars
.
txdata
[
0
];
txdata
=
PHY_vars_eNB
->
common_vars
.
txdata
[
0
];
s_re
=
malloc
(
2
*
sizeof
(
double
*
));
s_im
=
malloc
(
2
*
sizeof
(
double
*
));
...
...
@@ -315,49 +315,49 @@ int main(int argc, char **argv)
bzero
(
r_im
[
i
],
FRAME_LENGTH_COMPLEX_SAMPLES
*
sizeof
(
double
));
}
eNB2UE
=
new_channel_desc_scm
(
PHY_vars_eNB
->
lte_
frame_parms
.
nb_antennas_tx
,
PHY_vars_UE
->
lte_
frame_parms
.
nb_antennas_rx
,
eNB2UE
=
new_channel_desc_scm
(
PHY_vars_eNB
->
frame_parms
.
nb_antennas_tx
,
PHY_vars_UE
->
frame_parms
.
nb_antennas_rx
,
channel_model
,
N_RB2sampling_rate
(
PHY_vars_eNB
->
lte_
frame_parms
.
N_RB_DL
),
N_RB2channel_bandwidth
(
PHY_vars_eNB
->
lte_
frame_parms
.
N_RB_DL
),
N_RB2sampling_rate
(
PHY_vars_eNB
->
frame_parms
.
N_RB_DL
),
N_RB2channel_bandwidth
(
PHY_vars_eNB
->
frame_parms
.
N_RB_DL
),
0
,
0
,
0
);
// Create transport channel structures for 2 transport blocks (MIMO)
PHY_vars_eNB
->
dlsch_
eNB_
MCH
=
new_eNB_dlsch
(
1
,
8
,
Nsoft
,
N_RB_DL
,
0
);
PHY_vars_eNB
->
dlsch_MCH
=
new_eNB_dlsch
(
1
,
8
,
Nsoft
,
N_RB_DL
,
0
);
if
(
!
PHY_vars_eNB
->
dlsch_
eNB_
MCH
)
{
if
(
!
PHY_vars_eNB
->
dlsch_MCH
)
{
printf
(
"Can't get eNB dlsch structures
\n
"
);
exit
(
-
1
);
}
PHY_vars_UE
->
dlsch_
ue_
MCH
[
0
]
=
new_ue_dlsch
(
1
,
8
,
Nsoft
,
MAX_TURBO_ITERATIONS_MBSFN
,
N_RB_DL
,
0
);
PHY_vars_UE
->
dlsch_MCH
[
0
]
=
new_ue_dlsch
(
1
,
8
,
Nsoft
,
MAX_TURBO_ITERATIONS_MBSFN
,
N_RB_DL
,
0
);
PHY_vars_eNB
->
lte_
frame_parms
.
num_MBSFN_config
=
1
;
PHY_vars_eNB
->
lte_
frame_parms
.
MBSFN_config
[
0
].
radioframeAllocationPeriod
=
0
;
PHY_vars_eNB
->
lte_
frame_parms
.
MBSFN_config
[
0
].
radioframeAllocationOffset
=
0
;
PHY_vars_eNB
->
lte_
frame_parms
.
MBSFN_config
[
0
].
fourFrames_flag
=
0
;
PHY_vars_eNB
->
lte_
frame_parms
.
MBSFN_config
[
0
].
mbsfn_SubframeConfig
=
0xff
;
// activate all possible subframes
PHY_vars_UE
->
lte_
frame_parms
.
num_MBSFN_config
=
1
;
PHY_vars_UE
->
lte_
frame_parms
.
MBSFN_config
[
0
].
radioframeAllocationPeriod
=
0
;
PHY_vars_UE
->
lte_
frame_parms
.
MBSFN_config
[
0
].
radioframeAllocationOffset
=
0
;
PHY_vars_UE
->
lte_
frame_parms
.
MBSFN_config
[
0
].
fourFrames_flag
=
0
;
PHY_vars_UE
->
lte_
frame_parms
.
MBSFN_config
[
0
].
mbsfn_SubframeConfig
=
0xff
;
// activate all possible subframes
PHY_vars_eNB
->
frame_parms
.
num_MBSFN_config
=
1
;
PHY_vars_eNB
->
frame_parms
.
MBSFN_config
[
0
].
radioframeAllocationPeriod
=
0
;
PHY_vars_eNB
->
frame_parms
.
MBSFN_config
[
0
].
radioframeAllocationOffset
=
0
;
PHY_vars_eNB
->
frame_parms
.
MBSFN_config
[
0
].
fourFrames_flag
=
0
;
PHY_vars_eNB
->
frame_parms
.
MBSFN_config
[
0
].
mbsfn_SubframeConfig
=
0xff
;
// activate all possible subframes
PHY_vars_UE
->
frame_parms
.
num_MBSFN_config
=
1
;
PHY_vars_UE
->
frame_parms
.
MBSFN_config
[
0
].
radioframeAllocationPeriod
=
0
;
PHY_vars_UE
->
frame_parms
.
MBSFN_config
[
0
].
radioframeAllocationOffset
=
0
;
PHY_vars_UE
->
frame_parms
.
MBSFN_config
[
0
].
fourFrames_flag
=
0
;
PHY_vars_UE
->
frame_parms
.
MBSFN_config
[
0
].
mbsfn_SubframeConfig
=
0xff
;
// activate all possible subframes
fill_eNB_dlsch_MCH
(
PHY_vars_eNB
,
mcs
,
1
,
0
,
0
);
fill_UE_dlsch_MCH
(
PHY_vars_UE
,
mcs
,
1
,
0
,
0
);
if
(
is_pmch_subframe
(
0
,
subframe
,
&
PHY_vars_eNB
->
lte_
frame_parms
)
==
0
)
{
if
(
is_pmch_subframe
(
0
,
subframe
,
&
PHY_vars_eNB
->
frame_parms
)
==
0
)
{
printf
(
"eNB is not configured for MBSFN in subframe %d
\n
"
,
subframe
);
exit
(
-
1
);
}
else
if
(
is_pmch_subframe
(
0
,
subframe
,
&
PHY_vars_UE
->
lte_
frame_parms
)
==
0
)
{
}
else
if
(
is_pmch_subframe
(
0
,
subframe
,
&
PHY_vars_UE
->
frame_parms
)
==
0
)
{
printf
(
"UE is not configured for MBSFN in subframe %d
\n
"
,
subframe
);
exit
(
-
1
);
}
input_buffer_length
=
PHY_vars_eNB
->
dlsch_
eNB_
MCH
->
harq_processes
[
0
]
->
TBS
/
8
;
input_buffer_length
=
PHY_vars_eNB
->
dlsch_MCH
->
harq_processes
[
0
]
->
TBS
/
8
;
input_buffer
=
(
unsigned
char
*
)
malloc
(
input_buffer_length
+
4
);
memset
(
input_buffer
,
0
,
input_buffer_length
+
4
);
...
...
@@ -392,12 +392,12 @@ int main(int argc, char **argv)
//if (trials%100==0)
//eNB2UE[0]->first_run = 1;
eNB2UE
->
first_run
=
1
;
memset
(
&
PHY_vars_eNB
->
lte_eNB_
common_vars
.
txdataF
[
0
][
0
][
0
],
0
,
FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX
*
sizeof
(
int32_t
));
memset
(
&
PHY_vars_eNB
->
common_vars
.
txdataF
[
0
][
0
][
0
],
0
,
FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX
*
sizeof
(
int32_t
));
generate_mch
(
PHY_vars_eNB
,
sched_subframe
,
input_buffer
,
0
);
PHY_ofdm_mod
(
PHY_vars_eNB
->
lte_eNB_
common_vars
.
txdataF
[
0
][
0
],
// input,
PHY_ofdm_mod
(
PHY_vars_eNB
->
common_vars
.
txdataF
[
0
][
0
],
// input,
txdata
[
0
],
// output
frame_parms
->
ofdm_symbol_size
,
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME
*
nsymb
,
// number of symbols
...
...
@@ -405,33 +405,33 @@ int main(int argc, char **argv)
CYCLIC_PREFIX
);
if
(
n_frames
==
1
)
{
write_output
(
"txsigF0.m"
,
"txsF0"
,
&
PHY_vars_eNB
->
lte_eNB_
common_vars
.
txdataF
[
0
][
0
][
subframe
*
nsymb
*
PHY_vars_eNB
->
lte_
frame_parms
.
ofdm_symbol_size
],
nsymb
*
PHY_vars_eNB
->
lte_
frame_parms
.
ofdm_symbol_size
,
1
,
1
);
//if (PHY_vars_eNB->
lte_
frame_parms.nb_antennas_tx>1)
//write_output("txsigF1.m","txsF1", &PHY_vars_eNB->
lte_eNB_
common_vars.txdataF[eNB_id][1][subframe*nsymb*PHY_vars_eNB->
lte_
frame_parms.ofdm_symbol_size],nsymb*PHY_vars_eNB->
lte_
frame_parms.ofdm_symbol_size,1,1);
write_output
(
"txsigF0.m"
,
"txsF0"
,
&
PHY_vars_eNB
->
common_vars
.
txdataF
[
0
][
0
][
subframe
*
nsymb
*
PHY_vars_eNB
->
frame_parms
.
ofdm_symbol_size
],
nsymb
*
PHY_vars_eNB
->
frame_parms
.
ofdm_symbol_size
,
1
,
1
);
//if (PHY_vars_eNB->frame_parms.nb_antennas_tx>1)
//write_output("txsigF1.m","txsF1", &PHY_vars_eNB->common_vars.txdataF[eNB_id][1][subframe*nsymb*PHY_vars_eNB->frame_parms.ofdm_symbol_size],nsymb*PHY_vars_eNB->frame_parms.ofdm_symbol_size,1,1);
}
tx_lev
=
0
;
for
(
aa
=
0
;
aa
<
PHY_vars_eNB
->
lte_
frame_parms
.
nb_antennas_tx
;
aa
++
)
{
tx_lev
+=
signal_energy
(
&
PHY_vars_eNB
->
lte_eNB_
common_vars
.
txdata
[
eNB_id
][
aa
]
[
subframe
*
PHY_vars_eNB
->
lte_
frame_parms
.
samples_per_tti
],
PHY_vars_eNB
->
lte_
frame_parms
.
samples_per_tti
);
for
(
aa
=
0
;
aa
<
PHY_vars_eNB
->
frame_parms
.
nb_antennas_tx
;
aa
++
)
{
tx_lev
+=
signal_energy
(
&
PHY_vars_eNB
->
common_vars
.
txdata
[
eNB_id
][
aa
]
[
subframe
*
PHY_vars_eNB
->
frame_parms
.
samples_per_tti
],
PHY_vars_eNB
->
frame_parms
.
samples_per_tti
);
}
tx_lev_dB
=
(
unsigned
int
)
dB_fixed
(
tx_lev
);
if
(
n_frames
==
1
)
{
printf
(
"tx_lev = %d (%d dB)
\n
"
,
tx_lev
,
tx_lev_dB
);
// write_output("txsig0.m","txs0", &PHY_vars_eNB->
lte_eNB_
common_vars.txdata[0][0][subframe* PHY_vars_eNB->
lte_
frame_parms.samples_per_tti],
// write_output("txsig0.m","txs0", &PHY_vars_eNB->common_vars.txdata[0][0][subframe* PHY_vars_eNB->frame_parms.samples_per_tti],
// PHY_vars_eNB->
lte_
frame_parms.samples_per_tti,1,1);
// PHY_vars_eNB->frame_parms.samples_per_tti,1,1);
}
for
(
i
=
0
;
i
<
2
*
frame_parms
->
samples_per_tti
;
i
++
)
{
for
(
aa
=
0
;
aa
<
PHY_vars_eNB
->
lte_
frame_parms
.
nb_antennas_tx
;
aa
++
)
{
s_re
[
aa
][
i
]
=
((
double
)(((
short
*
)
PHY_vars_eNB
->
lte_eNB_
common_vars
.
txdata
[
0
][
aa
]))[(
2
*
subframe
*
PHY_vars_UE
->
lte_
frame_parms
.
samples_per_tti
)
+
(
i
<<
1
)]);
s_im
[
aa
][
i
]
=
((
double
)(((
short
*
)
PHY_vars_eNB
->
lte_eNB_
common_vars
.
txdata
[
0
][
aa
]))[(
2
*
subframe
*
PHY_vars_UE
->
lte_
frame_parms
.
samples_per_tti
)
+
(
i
<<
1
)
+
1
]);
for
(
aa
=
0
;
aa
<
PHY_vars_eNB
->
frame_parms
.
nb_antennas_tx
;
aa
++
)
{
s_re
[
aa
][
i
]
=
((
double
)(((
short
*
)
PHY_vars_eNB
->
common_vars
.
txdata
[
0
][
aa
]))[(
2
*
subframe
*
PHY_vars_UE
->
frame_parms
.
samples_per_tti
)
+
(
i
<<
1
)]);
s_im
[
aa
][
i
]
=
((
double
)(((
short
*
)
PHY_vars_eNB
->
common_vars
.
txdata
[
0
][
aa
]))[(
2
*
subframe
*
PHY_vars_UE
->
frame_parms
.
samples_per_tti
)
+
(
i
<<
1
)
+
1
]);
}
}
...
...
@@ -440,18 +440,18 @@ int main(int argc, char **argv)
2
*
frame_parms
->
samples_per_tti
,
hold_channel
);
//AWGN
sigma2_dB
=
10
*
log10
((
double
)
tx_lev
)
+
10
*
log10
((
double
)
PHY_vars_eNB
->
lte_
frame_parms
.
ofdm_symbol_size
/
(
NB_RB
*
12
))
-
SNR
;
sigma2_dB
=
10
*
log10
((
double
)
tx_lev
)
+
10
*
log10
((
double
)
PHY_vars_eNB
->
frame_parms
.
ofdm_symbol_size
/
(
NB_RB
*
12
))
-
SNR
;
sigma2
=
pow
(
10
,
sigma2_dB
/
10
);
if
(
n_frames
==
1
)
printf
(
"Sigma2 %f (sigma2_dB %f)
\n
"
,
sigma2
,
sigma2_dB
);
for
(
i
=
0
;
i
<
2
*
frame_parms
->
samples_per_tti
;
i
++
)
{
for
(
aa
=
0
;
aa
<
PHY_vars_eNB
->
lte_
frame_parms
.
nb_antennas_rx
;
aa
++
)
{
for
(
aa
=
0
;
aa
<
PHY_vars_eNB
->
frame_parms
.
nb_antennas_rx
;
aa
++
)
{
//printf("s_re[0][%d]=> %f , r_re[0][%d]=> %f\n",i,s_re[aa][i],i,r_re[aa][i]);
((
short
*
)
PHY_vars_UE
->
lte_ue_common_vars
.
rxdata
[
aa
])[(
2
*
subframe
*
PHY_vars_UE
->
lte_
frame_parms
.
samples_per_tti
)
+
2
*
i
]
=
((
short
*
)
PHY_vars_UE
->
lte_ue_common_vars
.
rxdata
[
aa
])[(
2
*
subframe
*
PHY_vars_UE
->
frame_parms
.
samples_per_tti
)
+
2
*
i
]
=
(
short
)
(
r_re
[
aa
][
i
]
+
sqrt
(
sigma2
/
2
)
*
gaussdouble
(
0
.
0
,
1
.
0
));
((
short
*
)
PHY_vars_UE
->
lte_ue_common_vars
.
rxdata
[
aa
])[(
2
*
subframe
*
PHY_vars_UE
->
lte_
frame_parms
.
samples_per_tti
)
+
2
*
i
+
1
]
=
((
short
*
)
PHY_vars_UE
->
lte_ue_common_vars
.
rxdata
[
aa
])[(
2
*
subframe
*
PHY_vars_UE
->
frame_parms
.
samples_per_tti
)
+
2
*
i
+
1
]
=
(
short
)
(
r_im
[
aa
][
i
]
+
(
iqim
*
r_re
[
aa
][
i
])
+
sqrt
(
sigma2
/
2
)
*
gaussdouble
(
0
.
0
,
1
.
0
));
}
}
...
...
@@ -466,7 +466,7 @@ int main(int argc, char **argv)
if
(
PHY_vars_UE
->
perfect_ce
==
1
)
{
// fill in perfect channel estimates
freq_channel
(
eNB2UE
,
PHY_vars_UE
->
lte_
frame_parms
.
N_RB_DL
,
12
*
PHY_vars_UE
->
lte_
frame_parms
.
N_RB_DL
+
1
);
freq_channel
(
eNB2UE
,
PHY_vars_UE
->
frame_parms
.
N_RB_DL
,
12
*
PHY_vars_UE
->
frame_parms
.
N_RB_DL
+
1
);
for
(
k
=
0
;
k
<
NUMBER_OF_eNB_MAX
;
k
++
)
{
for
(
aa
=
0
;
aa
<
frame_parms
->
nb_antennas_tx
;
aa
++
)
{
for
(
aarx
=
0
;
aarx
<
frame_parms
->
nb_antennas_rx
;
aarx
++
)
{
...
...
@@ -499,30 +499,30 @@ int main(int argc, char **argv)
l2
);
}
PHY_vars_UE
->
dlsch_
ue_
MCH
[
0
]
->
harq_processes
[
0
]
->
G
=
get_G
(
&
PHY_vars_UE
->
lte_
frame_parms
,
PHY_vars_UE
->
dlsch_
ue_
MCH
[
0
]
->
harq_processes
[
0
]
->
nb_rb
,
PHY_vars_UE
->
dlsch_
ue_
MCH
[
0
]
->
harq_processes
[
0
]
->
rb_alloc_even
,
get_Qm
(
PHY_vars_UE
->
dlsch_
ue_
MCH
[
0
]
->
harq_processes
[
0
]
->
mcs
),
PHY_vars_UE
->
dlsch_MCH
[
0
]
->
harq_processes
[
0
]
->
G
=
get_G
(
&
PHY_vars_UE
->
frame_parms
,
PHY_vars_UE
->
dlsch_MCH
[
0
]
->
harq_processes
[
0
]
->
nb_rb
,
PHY_vars_UE
->
dlsch_MCH
[
0
]
->
harq_processes
[
0
]
->
rb_alloc_even
,
get_Qm
(
PHY_vars_UE
->
dlsch_MCH
[
0
]
->
harq_processes
[
0
]
->
mcs
),
1
,
2
,
PHY_vars_UE
->
frame_tx
,
subframe
);
PHY_vars_UE
->
dlsch_
ue_
MCH
[
0
]
->
harq_processes
[
0
]
->
Qm
=
get_Qm
(
PHY_vars_UE
->
dlsch_
ue_
MCH
[
0
]
->
harq_processes
[
0
]
->
mcs
);
PHY_vars_UE
->
dlsch_MCH
[
0
]
->
harq_processes
[
0
]
->
Qm
=
get_Qm
(
PHY_vars_UE
->
dlsch_MCH
[
0
]
->
harq_processes
[
0
]
->
mcs
);
dlsch_unscrambling
(
&
PHY_vars_UE
->
lte_
frame_parms
,
1
,
PHY_vars_UE
->
dlsch_
ue_
MCH
[
0
],
PHY_vars_UE
->
dlsch_
ue_
MCH
[
0
]
->
harq_processes
[
0
]
->
G
,
dlsch_unscrambling
(
&
PHY_vars_UE
->
frame_parms
,
1
,
PHY_vars_UE
->
dlsch_MCH
[
0
],
PHY_vars_UE
->
dlsch_MCH
[
0
]
->
harq_processes
[
0
]
->
G
,
PHY_vars_UE
->
lte_ue_pdsch_vars_MCH
[
0
]
->
llr
[
0
],
0
,
subframe
<<
1
);
ret
=
dlsch_decoding
(
PHY_vars_UE
,
PHY_vars_UE
->
lte_ue_pdsch_vars_MCH
[
0
]
->
llr
[
0
],
&
PHY_vars_UE
->
lte_
frame_parms
,
PHY_vars_UE
->
dlsch_
ue_
MCH
[
0
],
PHY_vars_UE
->
dlsch_
ue_
MCH
[
0
]
->
harq_processes
[
0
],
&
PHY_vars_UE
->
frame_parms
,
PHY_vars_UE
->
dlsch_MCH
[
0
],
PHY_vars_UE
->
dlsch_MCH
[
0
]
->
harq_processes
[
0
],
subframe
,
0
,
0
,
0
);
if
(
n_frames
==
1
)
printf
(
"MCH decoding returns %d
\n
"
,
ret
);
if
(
ret
==
(
1
+
PHY_vars_UE
->
dlsch_
ue_
MCH
[
0
]
->
max_turbo_iterations
))
if
(
ret
==
(
1
+
PHY_vars_UE
->
dlsch_MCH
[
0
]
->
max_turbo_iterations
))
errs
[
0
]
++
;
PHY_vars_UE
->
frame_tx
++
;
...
...
@@ -550,15 +550,15 @@ int main(int argc, char **argv)
if
(
n_frames
==
1
)
{
printf
(
"Dumping PMCH files ( G %d)
\n
"
,
PHY_vars_UE
->
dlsch_
ue_
MCH
[
0
]
->
harq_processes
[
0
]
->
G
);
printf
(
"Dumping PMCH files ( G %d)
\n
"
,
PHY_vars_UE
->
dlsch_MCH
[
0
]
->
harq_processes
[
0
]
->
G
);
dump_mch
(
PHY_vars_UE
,
0
,
PHY_vars_UE
->
dlsch_
ue_
MCH
[
0
]
->
harq_processes
[
0
]
->
G
,
PHY_vars_UE
->
dlsch_MCH
[
0
]
->
harq_processes
[
0
]
->
G
,
subframe
);
}
printf
(
"Freeing dlsch structures
\n
"
);
free_eNB_dlsch
(
PHY_vars_eNB
->
dlsch_
eNB_
MCH
);
free_ue_dlsch
(
PHY_vars_UE
->
dlsch_
ue_
MCH
[
0
]);
free_eNB_dlsch
(
PHY_vars_eNB
->
dlsch_MCH
);
free_ue_dlsch
(
PHY_vars_UE
->
dlsch_MCH
[
0
]);
fclose
(
fd
);
...
...
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
.
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment