Skip to content
Projects
Groups
Snippets
Help
Loading...
Help
Support
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in / Register
Toggle navigation
O
OpenXG-RAN
Project overview
Project overview
Details
Activity
Releases
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Issues
0
Issues
0
List
Boards
Labels
Milestones
Merge Requests
0
Merge Requests
0
CI / CD
CI / CD
Pipelines
Jobs
Schedules
Analytics
Analytics
CI / CD
Repository
Value Stream
Wiki
Wiki
Snippets
Snippets
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Create a new issue
Jobs
Commits
Issue Boards
Open sidebar
spbro
OpenXG-RAN
Commits
5a34801a
Commit
5a34801a
authored
Jan 11, 2022
by
rmagueta
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
SRS channel interpolation improved for comb_size 4
parent
d14d3674
Changes
3
Hide whitespace changes
Inline
Side-by-side
Showing
3 changed files
with
31 additions
and
16 deletions
+31
-16
openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
+15
-15
openair1/PHY/NR_UE_ESTIMATION/filt16a_32.c
openair1/PHY/NR_UE_ESTIMATION/filt16a_32.c
+11
-1
openair1/PHY/NR_UE_ESTIMATION/filt16a_32.h
openair1/PHY/NR_UE_ESTIMATION/filt16a_32.h
+5
-0
No files found.
openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
View file @
5a34801a
...
...
@@ -1152,21 +1152,21 @@ int nr_srs_channel_estimation(PHY_VARS_gNB *gNB,
srs_estimated_channel16
=
(
int16_t
*
)
&
srs_estimated_channel_freq
[
ant
][
nr_srs_info
->
sc_list
[
sc_idx
]];
}
}
else
{
if
(
sc_idx
>
0
)
{
multadd_real_vector_complex_scalar
(
filt8_dcr0_h
,
ls_estimated
,
srs_estimated_channel16
,
8
);
if
(
nr_srs_info
->
sc_list
[
sc_idx
]
<
nr_srs_info
->
sc_list
[
sc_idx
-
1
])
{
srs_estimated_channel16
=
(
int16_t
*
)
&
srs_estimated_channel_freq
[
ant
][
nr_srs_info
->
sc_list
[
sc_idx
+
1
]]
-
8
;
}
else
{
srs_estimated_channel16
=
(
int16_t
*
)
&
srs_estimated_channel_freq
[
ant
][
nr_srs_info
->
sc_list
[
sc_idx
]];
}
srs_estimated_channel16
[
0
]
=
0
;
srs_estimated_channel16
[
1
]
=
0
;
}
multadd_real_vector_complex_scalar
(
filt8_dcl0_h
,
ls_estimated
,
srs_estimated_channel16
,
8
);
if
(
sc_idx
==
(
nr_srs_info
->
sc_list_length
-
1
))
{
srs_estimated_channel_freq
[
ant
][
nr_srs_info
->
sc_list
[
sc_idx
]
+
1
]
=
srs_estimated_channel_freq
[
ant
][
nr_srs_info
->
sc_list
[
sc_idx
]];
srs_estimated_channel_freq
[
ant
][
nr_srs_info
->
sc_list
[
sc_idx
]
+
2
]
=
srs_estimated_channel_freq
[
ant
][
nr_srs_info
->
sc_list
[
sc_idx
]]
;
srs_estimated_channel
_freq
[
ant
][
nr_srs_info
->
sc_list
[
sc_idx
]
+
3
]
=
srs_estimated_channel_freq
[
ant
][
nr_srs_info
->
sc_list
[
sc_idx
]];
if
(
sc_idx
==
0
)
{
// First subcarrier case
// filt16_start is {12288,8192,8192,8192,4096,0,0,0,0,0,0,0,0,0,0,0}
multadd_real_vector_complex_scalar
(
filt16_start
,
ls_estimated
,
srs_estimated_channel16
,
16
);
}
else
if
(
nr_srs_info
->
sc_list
[
sc_idx
]
<
nr_srs_info
->
sc_list
[
sc_idx
-
1
])
{
// Start of OFDM symbol case
srs_estimated_channel16
=
(
int16_t
*
)
&
srs_estimated_channel_freq
[
ant
][
nr_srs_info
->
sc_list
[
sc_idx
+
1
]]
-
8
;
// filt16_start is {12288,8192,8192,8192,4096,0,0,0,0,0,0,0,0,0,0,0}
multadd_real_vector_complex_scalar
(
filt16_start
,
ls_estimated
,
srs_estimated_channel16
,
16
);
}
else
if
((
sc_idx
<
(
nr_srs_info
->
sc_list_length
-
1
)
&&
nr_srs_info
->
sc_list
[
sc_idx
+
1
]
<
nr_srs_info
->
sc_list
[
sc_idx
])
||
(
sc_idx
==
(
nr_srs_info
->
sc_list_length
-
1
)))
{
// End of OFDM symbol or last subcarrier cases
// filt16_end is {4096,8192,8192,8192,12288,16384,16384,16384,0,0,0,0,0,0,0,0
}
multadd_real_vector_complex_scalar
(
filt16_end
,
ls_estimated
,
srs_estimated_channel16
,
16
);
}
else
{
// Middle case
// filt16_middle4 is {4096,8192,8192,8192,8192,8192,8192,8192,4096,0,0,0,0,0,0,0}
multadd_real_vector_complex_scalar
(
filt16_middle4
,
ls_estimated
,
srs_estimated_channel16
,
16
)
;
srs_estimated_channel
16
=
(
int16_t
*
)
&
srs_estimated_channel_freq
[
ant
][
nr_srs_info
->
sc_list
[
sc_idx
]];
}
}
...
...
openair1/PHY/NR_UE_ESTIMATION/filt16a_32.c
View file @
5a34801a
...
...
@@ -272,4 +272,14 @@ short filt8_middle4[8] = {
0
,
0
,
4096
,
8192
,
8192
,
8192
,
4096
,
0
};
short
filt8_end
[
8
]
=
{
4096
,
8192
,
12288
,
16384
,
0
,
0
,
0
,
0
};
\ No newline at end of file
4096
,
8192
,
12288
,
16384
,
0
,
0
,
0
,
0
};
// Comb size 4
short
filt16_start
[
16
]
=
{
12288
,
8192
,
8192
,
8192
,
4096
,
0
,
0
,
0
,
0
,
0
,
0
,
0
,
0
,
0
,
0
,
0
};
short
filt16_middle4
[
16
]
=
{
4096
,
8192
,
8192
,
8192
,
8192
,
8192
,
8192
,
8192
,
4096
,
0
,
0
,
0
,
0
,
0
,
0
,
0
};
short
filt16_end
[
16
]
=
{
4096
,
8192
,
8192
,
8192
,
12288
,
16384
,
16384
,
16384
,
0
,
0
,
0
,
0
,
0
,
0
,
0
,
0
};
\ No newline at end of file
openair1/PHY/NR_UE_ESTIMATION/filt16a_32.h
View file @
5a34801a
...
...
@@ -188,4 +188,9 @@ extern short filt8_start[8];
extern
short
filt8_middle2
[
8
];
extern
short
filt8_middle4
[
8
];
extern
short
filt8_end
[
8
];
/*Comb size 4*/
extern
short
filt16_start
[
16
];
extern
short
filt16_middle4
[
16
];
extern
short
filt16_end
[
16
];
#endif
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