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
canghaiwuhen
OpenXG-RAN
Commits
f5b0658a
Commit
f5b0658a
authored
Nov 07, 2019
by
Sakthivel Velumani
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
Improved channel estimates around DC;
ignored only DC pilot
parent
ca9b4d7e
Changes
1
Show whitespace changes
Inline
Side-by-side
Showing
1 changed file
with
8 additions
and
6 deletions
+8
-6
openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c
openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c
+8
-6
No files found.
openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c
View file @
f5b0658a
...
@@ -895,14 +895,14 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
...
@@ -895,14 +895,14 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
pil
=
(
int16_t
*
)
&
pilot
[
rb_offset
*
((
config_type
==
0
)
?
6
:
4
)];
pil
=
(
int16_t
*
)
&
pilot
[
rb_offset
*
((
config_type
==
0
)
?
6
:
4
)];
pil
+=
(
idxPil
-
4
);
pil
+=
(
idxPil
-
4
);
dl_ch
+=
(
idxDC
-
8
);
dl_ch
+=
(
idxDC
-
8
);
dl_ch
=
memset
(
dl_ch
,
0
,
sizeof
(
int16_t
)
*
1
6
);
dl_ch
=
memset
(
dl_ch
,
0
,
sizeof
(
int16_t
)
*
1
4
);
re_offset
=
(
re_offset
+
idxDC
/
2
-
4
)
&
(
ue
->
frame_parms
.
ofdm_symbol_size
-
1
);
re_offset
=
(
re_offset
+
idxDC
/
2
-
4
)
&
(
ue
->
frame_parms
.
ofdm_symbol_size
-
1
);
rxF
=
(
int16_t
*
)
&
rxdataF
[
aarx
][(
symbol_offset
+
nushift
+
re_offset
)];
rxF
=
(
int16_t
*
)
&
rxdataF
[
aarx
][(
symbol_offset
+
nushift
+
re_offset
)];
ch
[
0
]
=
(
int16_t
)(((
int32_t
)
pil
[
0
]
*
rxF
[
0
]
-
(
int32_t
)
pil
[
1
]
*
rxF
[
1
])
>>
15
);
ch
[
0
]
=
(
int16_t
)(((
int32_t
)
pil
[
0
]
*
rxF
[
0
]
-
(
int32_t
)
pil
[
1
]
*
rxF
[
1
])
>>
15
);
ch
[
1
]
=
(
int16_t
)(((
int32_t
)
pil
[
0
]
*
rxF
[
1
]
+
(
int32_t
)
pil
[
1
]
*
rxF
[
0
])
>>
15
);
ch
[
1
]
=
(
int16_t
)(((
int32_t
)
pil
[
0
]
*
rxF
[
1
]
+
(
int32_t
)
pil
[
1
]
*
rxF
[
0
])
>>
15
);
multadd_real_vector_complex_scalar
(
f
ilt8_dcma
,
multadd_real_vector_complex_scalar
(
f
l
,
ch
,
ch
,
dl_ch
,
dl_ch
,
8
);
8
);
...
@@ -913,7 +913,7 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
...
@@ -913,7 +913,7 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
ch
[
0
]
=
(
int16_t
)(((
int32_t
)
pil
[
0
]
*
rxF
[
0
]
-
(
int32_t
)
pil
[
1
]
*
rxF
[
1
])
>>
15
);
ch
[
0
]
=
(
int16_t
)(((
int32_t
)
pil
[
0
]
*
rxF
[
0
]
-
(
int32_t
)
pil
[
1
]
*
rxF
[
1
])
>>
15
);
ch
[
1
]
=
(
int16_t
)(((
int32_t
)
pil
[
0
]
*
rxF
[
1
]
+
(
int32_t
)
pil
[
1
]
*
rxF
[
0
])
>>
15
);
ch
[
1
]
=
(
int16_t
)(((
int32_t
)
pil
[
0
]
*
rxF
[
1
]
+
(
int32_t
)
pil
[
1
]
*
rxF
[
0
])
>>
15
);
multadd_real_vector_complex_scalar
(
filt8_dc
mb
,
multadd_real_vector_complex_scalar
(
filt8_dc
l
,
ch
,
ch
,
dl_ch
,
dl_ch
,
8
);
8
);
...
@@ -924,11 +924,12 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
...
@@ -924,11 +924,12 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
ch
[
0
]
=
(
int16_t
)(((
int32_t
)
pil
[
0
]
*
rxF
[
0
]
-
(
int32_t
)
pil
[
1
]
*
rxF
[
1
])
>>
15
);
ch
[
0
]
=
(
int16_t
)(((
int32_t
)
pil
[
0
]
*
rxF
[
0
]
-
(
int32_t
)
pil
[
1
]
*
rxF
[
1
])
>>
15
);
ch
[
1
]
=
(
int16_t
)(((
int32_t
)
pil
[
0
]
*
rxF
[
1
]
+
(
int32_t
)
pil
[
1
]
*
rxF
[
0
])
>>
15
);
ch
[
1
]
=
(
int16_t
)(((
int32_t
)
pil
[
0
]
*
rxF
[
1
]
+
(
int32_t
)
pil
[
1
]
*
rxF
[
0
])
>>
15
);
multadd_real_vector_complex_scalar
(
filt8_dc
mc
,
multadd_real_vector_complex_scalar
(
filt8_dc
r
,
ch
,
ch
,
dl_ch
,
dl_ch
,
8
);
8
);
/*
pil += 2;
pil += 2;
re_offset = (re_offset+2)&(ue->frame_parms.ofdm_symbol_size-1);
re_offset = (re_offset+2)&(ue->frame_parms.ofdm_symbol_size-1);
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+re_offset)];
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+re_offset)];
...
@@ -939,9 +940,10 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
...
@@ -939,9 +940,10 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
ch,
ch,
dl_ch,
dl_ch,
8);
8);
*/
}
}
//
#ifdef DEBUG_PDSCH
#ifdef DEBUG_PDSCH
dl_ch
=
(
int16_t
*
)
&
dl_ch_estimates
[
aarx
][
ch_offset
];
dl_ch
=
(
int16_t
*
)
&
dl_ch_estimates
[
aarx
][
ch_offset
];
for
(
uint16_t
idxP
=
0
;
idxP
<
(
nb_rb_pdsch
*
12
/
8
);
idxP
++
)
{
for
(
uint16_t
idxP
=
0
;
idxP
<
(
nb_rb_pdsch
*
12
/
8
);
idxP
++
)
{
for
(
uint8_t
idxI
=
0
;
idxI
<
16
;
idxI
+=
2
)
{
for
(
uint8_t
idxI
=
0
;
idxI
<
16
;
idxI
+=
2
)
{
...
@@ -949,7 +951,7 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
...
@@ -949,7 +951,7 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
}
}
printf
(
"
\n
"
);
printf
(
"
\n
"
);
}
}
//
#endif
#endif
}
}
return
(
0
);
return
(
0
);
...
...
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