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
zzha zzha
OpenXG-RAN
Commits
20c7af9a
Commit
20c7af9a
authored
Jan 21, 2018
by
Raymond Knopp
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
forgot to add a file
parent
046589e7
Changes
1
Hide whitespace changes
Inline
Side-by-side
Showing
1 changed file
with
228 additions
and
0 deletions
+228
-0
openair1/SCHED/prach_procedures.c
openair1/SCHED/prach_procedures.c
+228
-0
No files found.
openair1/SCHED/prach_procedures.c
0 → 100644
View file @
20c7af9a
/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*! \file phy_procedures_lte_eNB.c
* \brief Implementation of eNB procedures from 36.213 LTE specifications
* \author R. Knopp, F. Kaltenberger, N. Nikaein, X. Foukas
* \date 2011
* \version 0.1
* \company Eurecom
* \email: knopp@eurecom.fr,florian.kaltenberger@eurecom.fr,navid.nikaein@eurecom.fr, x.foukas@sms.ed.ac.uk
* \note
* \warning
*/
#include "PHY/defs.h"
#include "PHY/extern.h"
#include "SCHED/defs.h"
#include "SCHED/extern.h"
#include "nfapi_interface.h"
#include "fapi_l1.h"
#include "UTIL/LOG/log.h"
#include "UTIL/LOG/vcd_signal_dumper.h"
#include "T.h"
#include "assertions.h"
#include "msc.h"
#include <time.h>
#if defined(ENABLE_ITTI)
# include "intertask_interface.h"
#endif
extern
uint32_t
nfapi_mode
;
void
prach_procedures
(
PHY_VARS_eNB
*
eNB
,
#ifdef Rel14
int
br_flag
#endif
)
{
uint16_t
max_preamble
[
4
],
max_preamble_energy
[
4
],
max_preamble_delay
[
4
];
uint16_t
i
;
int
frame
,
subframe
;
#ifdef Rel14
if
(
br_flag
==
1
)
{
subframe
=
eNB
->
proc
.
subframe_prach_br
;
frame
=
eNB
->
proc
.
frame_prach_br
;
pthread_mutex_lock
(
&
eNB
->
UL_INFO_mutex
);
eNB
->
UL_INFO
.
rach_ind_br
.
rach_indication_body
.
number_of_preambles
=
0
;
pthread_mutex_unlock
(
&
eNB
->
UL_INFO_mutex
);
}
else
#endif
{
pthread_mutex_lock
(
&
eNB
->
UL_INFO_mutex
);
eNB
->
UL_INFO
.
rach_ind
.
rach_indication_body
.
number_of_preambles
=
0
;
pthread_mutex_unlock
(
&
eNB
->
UL_INFO_mutex
);
subframe
=
eNB
->
proc
.
subframe_prach
;
frame
=
eNB
->
proc
.
frame_prach
;
}
RU_t
*
ru
;
int
aa
=
0
;
int
ru_aa
;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
(
VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_PRACH_RX
,
1
);
for
(
i
=
0
;
i
<
eNB
->
num_RU
;
i
++
)
{
ru
=
eNB
->
RU_list
[
i
];
for
(
ru_aa
=
0
,
aa
=
0
;
ru_aa
<
ru
->
nb_rx
;
ru_aa
++
,
aa
++
)
{
eNB
->
prach_vars
.
rxsigF
[
0
][
aa
]
=
eNB
->
RU_list
[
i
]
->
prach_rxsigF
[
ru_aa
];
#ifdef Rel14
int
ce_level
;
if
(
br_flag
==
1
)
for
(
ce_level
=
0
;
ce_level
<
4
;
ce_level
++
)
eNB
->
prach_vars_br
.
rxsigF
[
ce_level
][
aa
]
=
eNB
->
RU_list
[
i
]
->
prach_rxsigF_br
[
ce_level
][
ru_aa
];
#endif
}
}
rx_prach
(
eNB
,
eNB
->
RU_list
[
0
],
&
max_preamble
[
0
],
&
max_preamble_energy
[
0
],
&
max_preamble_delay
[
0
],
frame
,
0
#ifdef Rel14
,
br_flag
#endif
);
#ifdef DEBUG_PHY_PROC
LOG_D
(
PHY
,
"[RAPROC] Frame %d, subframe %d : Most likely preamble %d, energy %d dB delay %d (prach_energy counter %d)
\n
"
,
frame
,
subframe
,
max_preamble
[
0
],
max_preamble_energy
[
0
]
/
10
,
max_preamble_delay
[
0
],
eNB
->
prach_energy_counter
);
#endif
#ifdef Rel14
if
(
br_flag
==
1
)
{
int
prach_mask
;
prach_mask
=
is_prach_subframe
(
&
eNB
->
frame_parms
,
eNB
->
proc
.
frame_prach_br
,
eNB
->
proc
.
subframe_prach_br
);
eNB
->
UL_INFO
.
rach_ind_br
.
rach_indication_body
.
preamble_list
=
eNB
->
preamble_list_br
;
int
ind
=
0
;
int
ce_level
=
0
;
/* Save for later, it doesn't work
for (int ind=0,ce_level=0;ce_level<4;ce_level++) {
if ((eNB->frame_parms.prach_emtc_config_common.prach_ConfigInfo.prach_CElevel_enable[ce_level]==1)&&
(prach_mask&(1<<(1+ce_level)) > 0) && // prach is active and CE level has finished its repetitions
(eNB->prach_vars_br.repetition_number[ce_level]==
eNB->frame_parms.prach_emtc_config_common.prach_ConfigInfo.prach_numRepetitionPerPreambleAttempt[ce_level])) {
*/
if
(
eNB
->
frame_parms
.
prach_emtc_config_common
.
prach_ConfigInfo
.
prach_CElevel_enable
[
0
]
==
1
){
if
((
eNB
->
prach_energy_counter
==
100
)
&&
(
max_preamble_energy
[
0
]
>
eNB
->
measurements
.
prach_I0
+
100
))
{
eNB
->
UL_INFO
.
rach_ind_br
.
rach_indication_body
.
number_of_preambles
++
;
eNB
->
preamble_list_br
[
ind
].
preamble_rel8
.
timing_advance
=
max_preamble_delay
[
ind
];
//
eNB
->
preamble_list_br
[
ind
].
preamble_rel8
.
preamble
=
max_preamble
[
ind
];
// note: fid is implicitly 0 here, this is the rule for eMTC RA-RNTI from 36.321, Section 5.1.4
eNB
->
preamble_list_br
[
ind
].
preamble_rel8
.
rnti
=
1
+
subframe
+
(
eNB
->
prach_vars_br
.
first_frame
[
ce_level
]
%
40
);
eNB
->
preamble_list_br
[
ind
].
instance_length
=
0
;
//don't know exactly what this is
eNB
->
preamble_list_br
[
ind
].
preamble_rel13
.
rach_resource_type
=
1
+
ce_level
;
// CE Level
LOG_D
(
PHY
,
"Filling NFAPI indication for RACH %d CELevel %d (mask %x) : TA %d, Preamble %d, rnti %x, rach_resource_type %d
\n
"
,
ind
,
ce_level
,
prach_mask
,
eNB
->
preamble_list_br
[
ind
].
preamble_rel8
.
timing_advance
,
eNB
->
preamble_list_br
[
ind
].
preamble_rel8
.
preamble
,
eNB
->
preamble_list_br
[
ind
].
preamble_rel8
.
rnti
,
eNB
->
preamble_list_br
[
ind
].
preamble_rel13
.
rach_resource_type
);
}
/*
ind++;
}
} */
// ce_level
}
}
else
#endif
{
if
((
eNB
->
prach_energy_counter
==
100
)
&&
(
max_preamble_energy
[
0
]
>
eNB
->
measurements
.
prach_I0
+
100
))
{
LOG_I
(
PHY
,
"[eNB %d/%d][RAPROC] Frame %d, subframe %d Initiating RA procedure with preamble %d, energy %d.%d dB, delay %d
\n
"
,
eNB
->
Mod_id
,
eNB
->
CC_id
,
frame
,
subframe
,
max_preamble
[
0
],
max_preamble_energy
[
0
]
/
10
,
max_preamble_energy
[
0
]
%
10
,
max_preamble_delay
[
0
]);
T
(
T_ENB_PHY_INITIATE_RA_PROCEDURE
,
T_INT
(
eNB
->
Mod_id
),
T_INT
(
frame
),
T_INT
(
subframe
),
T_INT
(
max_preamble
[
0
]),
T_INT
(
max_preamble_energy
[
0
]),
T_INT
(
max_preamble_delay
[
0
]));
pthread_mutex_lock
(
&
eNB
->
UL_INFO_mutex
);
eNB
->
UL_INFO
.
rach_ind
.
rach_indication_body
.
number_of_preambles
=
1
;
eNB
->
UL_INFO
.
rach_ind
.
rach_indication_body
.
preamble_list
=
&
eNB
->
preamble_list
[
0
];
eNB
->
UL_INFO
.
rach_ind
.
rach_indication_body
.
tl
.
tag
=
NFAPI_RACH_INDICATION_BODY_TAG
;
eNB
->
UL_INFO
.
rach_ind
.
header
.
message_id
=
NFAPI_RACH_INDICATION
;
eNB
->
UL_INFO
.
rach_ind
.
sfn_sf
=
frame
<<
4
|
subframe
;
eNB
->
preamble_list
[
0
].
preamble_rel8
.
tl
.
tag
=
NFAPI_PREAMBLE_REL8_TAG
;
eNB
->
preamble_list
[
0
].
preamble_rel8
.
timing_advance
=
max_preamble_delay
[
0
];
eNB
->
preamble_list
[
0
].
preamble_rel8
.
preamble
=
max_preamble
[
0
];
eNB
->
preamble_list
[
0
].
preamble_rel8
.
rnti
=
1
+
subframe
;
// note: fid is implicitly 0 here
eNB
->
preamble_list
[
0
].
preamble_rel13
.
rach_resource_type
=
0
;
eNB
->
preamble_list
[
0
].
instance_length
=
0
;
//don't know exactly what this is
if
(
nfapi_mode
==
1
)
{
// If NFAPI PNF then we need to send the message to the VNF
LOG_D
(
PHY
,
"Filling NFAPI indication for RACH : SFN_SF:%d TA %d, Preamble %d, rnti %x, rach_resource_type %d
\n
"
,
NFAPI_SFNSF2DEC
(
eNB
->
UL_INFO
.
rach_ind
.
sfn_sf
),
eNB
->
preamble_list
[
0
].
preamble_rel8
.
timing_advance
,
eNB
->
preamble_list
[
0
].
preamble_rel8
.
preamble
,
eNB
->
preamble_list
[
0
].
preamble_rel8
.
rnti
,
eNB
->
preamble_list
[
0
].
preamble_rel13
.
rach_resource_type
);
oai_nfapi_rach_ind
(
&
eNB
->
UL_INFO
.
rach_ind
);
eNB
->
UL_INFO
.
rach_ind
.
rach_indication_body
.
number_of_preambles
=
0
;
}
pthread_mutex_unlock
(
&
eNB
->
UL_INFO_mutex
);
}
// max_preamble_energy > prach_I0 + 100
else
{
eNB
->
measurements
.
prach_I0
=
((
eNB
->
measurements
.
prach_I0
*
900
)
>>
10
)
+
((
max_preamble_energy
[
0
]
*
124
)
>>
10
);
if
(
frame
==
0
)
LOG_I
(
PHY
,
"prach_I0 = %d.%d dB
\n
"
,
eNB
->
measurements
.
prach_I0
/
10
,
eNB
->
measurements
.
prach_I0
%
10
);
if
(
eNB
->
prach_energy_counter
<
100
)
eNB
->
prach_energy_counter
++
;
}
}
// else br_flag
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
(
VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_PRACH_RX
,
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