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zzha zzha
OpenXG-RAN
Commits
8aac9606
Commit
8aac9606
authored
Dec 15, 2021
by
rmagueta
Browse files
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Plain Diff
Add UL time channel estimation based on SRS
parent
ecd09b30
Changes
8
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Showing
8 changed files
with
84 additions
and
65 deletions
+84
-65
common/utils/T/T_messages.txt
common/utils/T/T_messages.txt
+6
-2
common/utils/T/tracer/gnb.c
common/utils/T/tracer/gnb.c
+22
-5
openair1/PHY/INIT/nr_init.c
openair1/PHY/INIT/nr_init.c
+2
-0
openair1/PHY/INIT/nr_init_ue.c
openair1/PHY/INIT/nr_init_ue.c
+2
-0
openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
+45
-57
openair1/PHY/NR_ESTIMATION/nr_ul_estimation.h
openair1/PHY/NR_ESTIMATION/nr_ul_estimation.h
+1
-0
openair1/PHY/defs_nr_common.h
openair1/PHY/defs_nr_common.h
+1
-0
openair1/SCHED_NR/phy_procedures_nr_gNB.c
openair1/SCHED_NR/phy_procedures_nr_gNB.c
+5
-1
No files found.
common/utils/T/T_messages.txt
View file @
8aac9606
...
...
@@ -93,8 +93,12 @@ ID = GNB_PHY_PUCCH_PUSCH_IQ
DESC = gNodeB input data in the frequency domain for a slot where some PUCCH or PUSCH detection was done
GROUP = ALL:PHY:GRAPHIC:HEAVY:GNB
FORMAT = int,frame : int,slot : buffer,rxdataF
ID = GNB_PHY_UL_CHANNEL_ESTIMATE
DESC = gNodeB channel estimation in the time/frequency domain
ID = GNB_PHY_UL_FREQ_CHANNEL_ESTIMATE
DESC = gNodeB channel estimation in the frequency domain
GROUP = ALL:PHY:GRAPHIC:HEAVY:GNB
FORMAT = int,gNB_ID : int,rnti : int,frame : int,subframe : int,antenna : buffer,chest_t
ID = GNB_PHY_UL_TIME_CHANNEL_ESTIMATE
DESC = gNodeB channel estimation in the time domain
GROUP = ALL:PHY:GRAPHIC:HEAVY:GNB
FORMAT = int,gNB_ID : int,rnti : int,frame : int,subframe : int,antenna : buffer,chest_t
ID = GNB_PHY_PRACH_INPUT_SIGNAL
...
...
common/utils/T/tracer/gnb.c
View file @
8aac9606
...
...
@@ -18,12 +18,14 @@ int next_ue_id;
typedef
struct
{
widget
*
pucch_pusch_iq_plot
;
widget
*
ul_freq_estimate_ue_xy_plot
;
widget
*
ul_time_estimate_ue_xy_plot
;
widget
*
current_ue_label
;
widget
*
current_ue_button
;
widget
*
prev_ue_button
;
widget
*
next_ue_button
;
logger
*
pucch_pusch_iq_logger
;
logger
*
ul_freq_estimate_ue_logger
;
logger
*
ul_time_estimate_ue_logger
;
}
gnb_gui
;
typedef
struct
{
...
...
@@ -93,6 +95,9 @@ static void set_current_ue(gui *g, gnb_data *e, int ue)
sprintf
(
s
,
"UL channel estimation in frequency domain [UE %d]"
,
ue
);
xy_plot_set_title
(
g
,
e
->
e
->
ul_freq_estimate_ue_xy_plot
,
s
);
sprintf
(
s
,
"UL channel estimation in time domain [UE %d]"
,
ue
);
xy_plot_set_title
(
g
,
e
->
e
->
ul_time_estimate_ue_xy_plot
,
s
);
}
void
reset_ue_ids
(
void
)
...
...
@@ -141,7 +146,7 @@ static void gnb_main_gui(gnb_gui *e, gui *g, event_handler *h, void *database, g
logger
*
l
;
view
*
v
;
main_window
=
new_toplevel_window
(
g
,
1
05
0
,
230
,
"gNB tracer"
);
main_window
=
new_toplevel_window
(
g
,
1
50
0
,
230
,
"gNB tracer"
);
top_container
=
new_container
(
g
,
VERTICAL
);
widget_add_child
(
g
,
main_window
,
top_container
,
-
1
);
...
...
@@ -179,17 +184,28 @@ static void gnb_main_gui(gnb_gui *e, gui *g, event_handler *h, void *database, g
logger_add_view
(
l
,
v
);
e
->
pucch_pusch_iq_logger
=
l
;
/* UL
estimated channel
*/
w
=
new_xy_plot
(
g
,
60
0
,
200
,
""
,
50
);
/* UL
channel estimation in frequency domain
*/
w
=
new_xy_plot
(
g
,
49
0
,
200
,
""
,
50
);
e
->
ul_freq_estimate_ue_xy_plot
=
w
;
widget_add_child
(
g
,
line
,
w
,
-
1
);
xy_plot_set_range
(
g
,
w
,
0
,
100
*
10
,
-
10
,
80
);
l
=
new_framelog
(
h
,
database
,
"GNB_PHY_UL_CHANNEL_ESTIMATE"
,
"subframe"
,
"chest_t"
);
l
=
new_framelog
(
h
,
database
,
"GNB_PHY_UL_
FREQ_
CHANNEL_ESTIMATE"
,
"subframe"
,
"chest_t"
);
framelog_set_update_only_at_sf9
(
l
,
0
);
v
=
new_view_xy
(
100
*
10
,
10
,
g
,
w
,
new_color
(
g
,
"#0c0c72"
),
XY_LOOP_MODE
);
logger_add_view
(
l
,
v
);
e
->
ul_freq_estimate_ue_logger
=
l
;
/* UL channel estimation in time domain */
w
=
new_xy_plot
(
g
,
490
,
200
,
""
,
50
);
e
->
ul_time_estimate_ue_xy_plot
=
w
;
widget_add_child
(
g
,
line
,
w
,
-
1
);
xy_plot_set_range
(
g
,
w
,
0
,
100
*
10
,
-
10
,
80
);
l
=
new_framelog
(
h
,
database
,
"GNB_PHY_UL_TIME_CHANNEL_ESTIMATE"
,
"subframe"
,
"chest_t"
);
framelog_set_update_only_at_sf9
(
l
,
0
);
v
=
new_view_xy
(
100
*
10
,
10
,
g
,
w
,
new_color
(
g
,
"#0c0c72"
),
XY_LOOP_MODE
);
logger_add_view
(
l
,
v
);
e
->
ul_time_estimate_ue_logger
=
l
;
set_current_ue
(
g
,
ed
,
ed
->
ue
);
register_notifier
(
g
,
"click"
,
e
->
current_ue_button
,
click
,
ed
);
register_notifier
(
g
,
"click"
,
e
->
prev_ue_button
,
click
,
ed
);
...
...
@@ -233,7 +249,8 @@ int main(int n, char **v)
h
=
new_handler
(
database
);
on_off
(
database
,
"GNB_PHY_PUCCH_PUSCH_IQ"
,
is_on
,
1
);
on_off
(
database
,
"GNB_PHY_UL_CHANNEL_ESTIMATE"
,
is_on
,
1
);
on_off
(
database
,
"GNB_PHY_UL_FREQ_CHANNEL_ESTIMATE"
,
is_on
,
1
);
on_off
(
database
,
"GNB_PHY_UL_TIME_CHANNEL_ESTIMATE"
,
is_on
,
1
);
gnb_data
.
ue
=
0
;
gnb_data
.
e
=
&
eg
;
...
...
openair1/PHY/INIT/nr_init.c
View file @
8aac9606
...
...
@@ -202,10 +202,12 @@ int phy_init_nr_gNB(PHY_VARS_gNB *gNB,
gNB
->
nr_srs_info
[
id
]
->
srs_received_signal
=
(
int32_t
**
)
malloc16
(
Prx
*
sizeof
(
int32_t
*
));
gNB
->
nr_srs_info
[
id
]
->
srs_ls_estimated_channel
=
(
int32_t
**
)
malloc16
(
Prx
*
sizeof
(
int32_t
*
));
gNB
->
nr_srs_info
[
id
]
->
srs_estimated_channel_freq
=
(
int32_t
**
)
malloc16
(
Prx
*
sizeof
(
int32_t
*
));
gNB
->
nr_srs_info
[
id
]
->
srs_estimated_channel_time
=
(
int32_t
**
)
malloc16
(
Prx
*
sizeof
(
int32_t
*
));
for
(
i
=
0
;
i
<
Prx
;
i
++
){
gNB
->
nr_srs_info
[
id
]
->
srs_received_signal
[
i
]
=
(
int32_t
*
)
malloc16_clear
(
fp
->
samples_per_frame
*
sizeof
(
int32_t
));
gNB
->
nr_srs_info
[
id
]
->
srs_ls_estimated_channel
[
i
]
=
(
int32_t
*
)
malloc16_clear
(
fp
->
samples_per_frame
*
sizeof
(
int32_t
));
gNB
->
nr_srs_info
[
id
]
->
srs_estimated_channel_freq
[
i
]
=
(
int32_t
*
)
malloc16_clear
(
fp
->
samples_per_frame
*
sizeof
(
int32_t
));
gNB
->
nr_srs_info
[
id
]
->
srs_estimated_channel_time
[
i
]
=
(
int32_t
*
)
malloc16_clear
(
fp
->
samples_per_frame
*
sizeof
(
int32_t
));
}
}
...
...
openair1/PHY/INIT/nr_init_ue.c
View file @
8aac9606
...
...
@@ -329,10 +329,12 @@ int init_nr_ue_signal(PHY_VARS_NR_UE *ue,
ue
->
nr_srs_info
->
srs_received_signal
=
(
int32_t
**
)
malloc16
(
fp
->
nb_antennas_rx
*
sizeof
(
int32_t
*
)
);
ue
->
nr_srs_info
->
srs_ls_estimated_channel
=
(
int32_t
**
)
malloc16
(
fp
->
nb_antennas_rx
*
sizeof
(
int32_t
*
)
);
ue
->
nr_srs_info
->
srs_estimated_channel_freq
=
(
int32_t
**
)
malloc16
(
fp
->
nb_antennas_rx
*
sizeof
(
int32_t
*
)
);
ue
->
nr_srs_info
->
srs_estimated_channel_time
=
(
int32_t
**
)
malloc16
(
fp
->
nb_antennas_rx
*
sizeof
(
int32_t
*
)
);
for
(
i
=
0
;
i
<
fp
->
nb_antennas_rx
;
i
++
)
{
ue
->
nr_srs_info
->
srs_received_signal
[
i
]
=
(
int32_t
*
)
malloc16_clear
(
(
2
*
(
fp
->
samples_per_frame
)
+
2048
)
*
sizeof
(
int32_t
)
);
ue
->
nr_srs_info
->
srs_ls_estimated_channel
[
i
]
=
(
int32_t
*
)
malloc16_clear
(
(
2
*
(
fp
->
samples_per_frame
)
+
2048
)
*
sizeof
(
int32_t
)
);
ue
->
nr_srs_info
->
srs_estimated_channel_freq
[
i
]
=
(
int32_t
*
)
malloc16_clear
(
(
2
*
(
fp
->
samples_per_frame
)
+
2048
)
*
sizeof
(
int32_t
)
);
ue
->
nr_srs_info
->
srs_estimated_channel_time
[
i
]
=
(
int32_t
*
)
malloc16_clear
(
(
2
*
(
fp
->
samples_per_frame
)
+
2048
)
*
sizeof
(
int32_t
)
);
}
if
(
abstraction_flag
==
0
)
{
...
...
openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
View file @
8aac9606
...
...
@@ -41,6 +41,41 @@
#define NO_INTERP 1
#define dBc(x,y) (dB_fixed(((int32_t)(x))*(x) + ((int32_t)(y))*(y)))
void
freq2time
(
uint16_t
ofdm_symbol_size
,
int16_t
*
freq_signal
,
int16_t
*
time_signal
)
{
switch
(
ofdm_symbol_size
)
{
case
128
:
idft
(
IDFT_128
,
freq_signal
,
time_signal
,
1
);
break
;
case
256
:
idft
(
IDFT_256
,
freq_signal
,
time_signal
,
1
);
break
;
case
512
:
idft
(
IDFT_512
,
freq_signal
,
time_signal
,
1
);
break
;
case
1024
:
idft
(
IDFT_1024
,
freq_signal
,
time_signal
,
1
);
break
;
case
1536
:
idft
(
IDFT_1536
,
freq_signal
,
time_signal
,
1
);
break
;
case
2048
:
idft
(
IDFT_2048
,
freq_signal
,
time_signal
,
1
);
break
;
case
4096
:
idft
(
IDFT_4096
,
freq_signal
,
time_signal
,
1
);
break
;
case
8192
:
idft
(
IDFT_8192
,
freq_signal
,
time_signal
,
1
);
break
;
default:
idft
(
IDFT_512
,
freq_signal
,
time_signal
,
1
);
break
;
}
}
int
nr_pusch_channel_estimation
(
PHY_VARS_gNB
*
gNB
,
unsigned
char
Ns
,
unsigned
short
p
,
...
...
@@ -899,63 +934,9 @@ int nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
#endif
// Convert to time domain
switch
(
gNB
->
frame_parms
.
ofdm_symbol_size
)
{
case
128
:
idft
(
IDFT_128
,(
int16_t
*
)
&
ul_ch_estimates
[
aarx
][
symbol_offset
],
(
int16_t
*
)
ul_ch_estimates_time
[
aarx
],
1
);
break
;
case
256
:
idft
(
IDFT_256
,(
int16_t
*
)
&
ul_ch_estimates
[
aarx
][
symbol_offset
],
(
int16_t
*
)
ul_ch_estimates_time
[
aarx
],
1
);
break
;
case
512
:
idft
(
IDFT_512
,(
int16_t
*
)
&
ul_ch_estimates
[
aarx
][
symbol_offset
],
(
int16_t
*
)
ul_ch_estimates_time
[
aarx
],
1
);
break
;
case
1024
:
idft
(
IDFT_1024
,(
int16_t
*
)
&
ul_ch_estimates
[
aarx
][
symbol_offset
],
(
int16_t
*
)
ul_ch_estimates_time
[
aarx
],
1
);
break
;
case
1536
:
idft
(
IDFT_1536
,(
int16_t
*
)
&
ul_ch_estimates
[
aarx
][
symbol_offset
],
(
int16_t
*
)
ul_ch_estimates_time
[
aarx
],
1
);
break
;
case
2048
:
idft
(
IDFT_2048
,(
int16_t
*
)
&
ul_ch_estimates
[
aarx
][
symbol_offset
],
(
int16_t
*
)
ul_ch_estimates_time
[
aarx
],
1
);
break
;
case
4096
:
idft
(
IDFT_4096
,(
int16_t
*
)
&
ul_ch_estimates
[
aarx
][
symbol_offset
],
(
int16_t
*
)
ul_ch_estimates_time
[
aarx
],
1
);
break
;
case
8192
:
idft
(
IDFT_8192
,(
int16_t
*
)
&
ul_ch_estimates
[
aarx
][
symbol_offset
],
(
int16_t
*
)
ul_ch_estimates_time
[
aarx
],
1
);
break
;
default:
idft
(
IDFT_512
,(
int16_t
*
)
&
ul_ch_estimates
[
aarx
][
symbol_offset
],
(
int16_t
*
)
ul_ch_estimates_time
[
aarx
],
1
);
break
;
}
freq2time
(
gNB
->
frame_parms
.
ofdm_symbol_size
,
(
int16_t
*
)
&
ul_ch_estimates
[
aarx
][
symbol_offset
],
(
int16_t
*
)
ul_ch_estimates_time
[
aarx
]);
}
#ifdef DEBUG_CH
...
...
@@ -1111,6 +1092,7 @@ int nr_srs_channel_estimation(PHY_VARS_gNB *gNB,
int32_t
*
srs_generated_signal
,
int32_t
**
srs_received_signal
,
int32_t
**
srs_estimated_channel_freq
,
int32_t
**
srs_estimated_channel_time
,
uint32_t
*
noise_power
)
{
if
(
nr_srs_info
->
n_symbs
==
0
)
{
...
...
@@ -1131,6 +1113,7 @@ int nr_srs_channel_estimation(PHY_VARS_gNB *gNB,
memset
(
srs_ls_estimated_channel
[
ant
],
0
,
frame_parms
->
samples_per_frame
*
sizeof
(
int32_t
));
memset
(
srs_estimated_channel_freq
[
ant
],
0
,
frame_parms
->
samples_per_frame
*
sizeof
(
int32_t
));
memset
(
srs_estimated_channel_time
[
ant
],
0
,
frame_parms
->
samples_per_frame
*
sizeof
(
int32_t
));
int16_t
*
srs_estimated_channel16
=
(
int16_t
*
)
&
srs_estimated_channel_freq
[
ant
][
nr_srs_info
->
subcarrier_idx
[
0
]];
...
...
@@ -1213,6 +1196,11 @@ int nr_srs_channel_estimation(PHY_VARS_gNB *gNB,
prev_ls_estimated
[
0
],
prev_ls_estimated
[
1
]);
#endif
}
// Convert to time domain
freq2time
(
gNB
->
frame_parms
.
ofdm_symbol_size
,
(
int16_t
*
)
srs_estimated_channel_freq
[
ant
],
(
int16_t
*
)
srs_estimated_channel_time
[
ant
]);
}
*
noise_power
=
calc_power
(
noise_real
,
frame_parms
->
nb_antennas_rx
*
nr_srs_info
->
n_symbs
)
...
...
openair1/PHY/NR_ESTIMATION/nr_ul_estimation.h
View file @
8aac9606
...
...
@@ -71,5 +71,6 @@ int nr_srs_channel_estimation(PHY_VARS_gNB *gNB,
int32_t
*
srs_generated_signal
,
int32_t
**
srs_received_signal
,
int32_t
**
srs_estimated_channel_freq
,
int32_t
**
srs_estimated_channel_time
,
uint32_t
*
noise_power
);
#endif
openair1/PHY/defs_nr_common.h
View file @
8aac9606
...
...
@@ -248,6 +248,7 @@ typedef struct {
int32_t
**
srs_received_signal
;
int32_t
**
srs_ls_estimated_channel
;
int32_t
**
srs_estimated_channel_freq
;
int32_t
**
srs_estimated_channel_time
;
uint32_t
*
noise_power
;
}
nr_srs_info_t
;
...
...
openair1/SCHED_NR/phy_procedures_nr_gNB.c
View file @
8aac9606
...
...
@@ -810,11 +810,15 @@ int phy_procedures_gNB_uespec_RX(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx) {
gNB
->
nr_srs_info
[
i
]
->
srs_generated_signal
,
gNB
->
nr_srs_info
[
i
]
->
srs_received_signal
,
gNB
->
nr_srs_info
[
i
]
->
srs_estimated_channel_freq
,
gNB
->
nr_srs_info
[
i
]
->
srs_estimated_channel_time
,
gNB
->
nr_srs_info
[
i
]
->
noise_power
);
T
(
T_GNB_PHY_UL_CHANNEL_ESTIMATE
,
T_INT
(
0
),
T_INT
(
srs_pdu
->
rnti
),
T_INT
(
frame_rx
),
T_INT
(
slot_rx
%
10
),
T_INT
(
0
),
T
(
T_GNB_PHY_UL_
FREQ_
CHANNEL_ESTIMATE
,
T_INT
(
0
),
T_INT
(
srs_pdu
->
rnti
),
T_INT
(
frame_rx
),
T_INT
(
slot_rx
%
10
),
T_INT
(
0
),
T_BUFFER
(
gNB
->
nr_srs_info
[
i
]
->
srs_estimated_channel_freq
[
0
],
100
*
4
));
T
(
T_GNB_PHY_UL_TIME_CHANNEL_ESTIMATE
,
T_INT
(
0
),
T_INT
(
srs_pdu
->
rnti
),
T_INT
(
frame_rx
),
T_INT
(
slot_rx
%
10
),
T_INT
(
0
),
T_BUFFER
(
gNB
->
nr_srs_info
[
i
]
->
srs_estimated_channel_time
[
0
],
100
*
4
));
srs
->
active
=
0
;
}
}
...
...
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