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Michael Black
OpenXG UE
Commits
09d7f3de
Commit
09d7f3de
authored
Jan 18, 2017
by
Raymond Knopp
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separation of RU
parent
32bd41b7
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3 changed files
with
3293 additions
and
0 deletions
+3293
-0
openair1/SCHED/ru_procedures.c
openair1/SCHED/ru_procedures.c
+323
-0
targets/RT/USER/lte-ran.c
targets/RT/USER/lte-ran.c
+1747
-0
targets/RT/USER/lte-ru.c
targets/RT/USER/lte-ru.c
+1223
-0
No files found.
openair1/SCHED/ru_procedures.c
0 → 100644
View file @
09d7f3de
// RU OFDM Modulator, used in IF4p5 RRU, RCC/RAU with IF5, eNodeB
void
do_OFDM_mod_rt
(
int
subframe
,
RU_t
*
ru
)
{
LTE_DL_FRAME_PARMS
*
fp
=&
ru
->
frame_parms
;
unsigned
int
aa
,
slot_offset
,
slot_offset_F
;
int
dummy_tx_b
[
7680
*
4
]
__attribute__
((
aligned
(
32
)));
int
i
,
j
,
tx_offset
;
int
slot_sizeF
=
(
fp
->
ofdm_symbol_size
)
*
((
fp
->
Ncp
==
1
)
?
6
:
7
);
int
len
,
len2
;
int16_t
*
txdata
;
// int CC_id = ru->proc.CC_id;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
(
VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_SFGEN
,
1
);
slot_offset_F
=
(
subframe
<<
1
)
*
slot_sizeF
;
slot_offset
=
subframe
*
fp
->
samples_per_tti
;
if
((
subframe_select
(
fp
,
subframe
)
==
SF_DL
)
||
((
subframe_select
(
fp
,
subframe
)
==
SF_S
)))
{
// LOG_D(HW,"Frame %d: Generating slot %d\n",frame,next_slot);
for
(
aa
=
0
;
aa
<
ru
->
nb_tx
;
aa
++
)
{
if
(
fp
->
Ncp
==
EXTENDED
)
{
PHY_ofdm_mod
(
&
ru
->
ru_time
.
txdataF
[
aa
][
slot_offset_F
],
dummy_tx_b
,
fp
->
ofdm_symbol_size
,
6
,
fp
->
nb_prefix_samples
,
CYCLIC_PREFIX
);
PHY_ofdm_mod
(
&
ru
->
ru_time
.
txdataF
[
aa
][
slot_offset_F
+
slot_sizeF
],
dummy_tx_b
+
(
fp
->
samples_per_tti
>>
1
),
fp
->
ofdm_symbol_size
,
6
,
fp
->
nb_prefix_samples
,
CYCLIC_PREFIX
);
}
else
{
normal_prefix_mod
(
&
ru
->
ru_time
.
txdataF
[
aa
][
slot_offset_F
],
dummy_tx_b
,
7
,
fp
);
// if S-subframe generate first slot only
if
(
subframe_select
(
fp
,
subframe
)
==
SF_DL
)
normal_prefix_mod
(
&
ru
->
ru_time
.
txdataF
[
aa
][
slot_offset_F
+
slot_sizeF
],
dummy_tx_b
+
(
fp
->
samples_per_tti
>>
1
),
7
,
fp
);
}
// if S-subframe generate first slot only
if
(
subframe_select
(
fp
,
subframe
)
==
SF_S
)
len
=
fp
->
samples_per_tti
>>
1
;
else
len
=
fp
->
samples_per_tti
;
/*
for (i=0;i<len;i+=4) {
dummy_tx_b[i] = 0x100;
dummy_tx_b[i+1] = 0x01000000;
dummy_tx_b[i+2] = 0xff00;
dummy_tx_b[i+3] = 0xff000000;
}*/
if
(
slot_offset
+
time_offset
[
aa
]
<
0
)
{
txdata
=
(
int16_t
*
)
&
ru
->
ru_time
.
txdata
[
aa
][(
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME
*
fp
->
samples_per_tti
)
+
tx_offset
];
len2
=
-
(
slot_offset
+
time_offset
[
aa
]);
len2
=
(
len2
>
len
)
?
len
:
len2
;
for
(
i
=
0
;
i
<
(
len2
<<
1
);
i
++
)
{
txdata
[
i
]
=
((
int16_t
*
)
dummy_tx_b
)[
i
]
<<
openair0_cfg
[
0
].
iq_txshift
;
}
if
(
len2
<
len
)
{
txdata
=
(
int16_t
*
)
&
ru
->
ru_time
.
txdata
[
aa
][
0
];
for
(
j
=
0
;
i
<
(
len
<<
1
);
i
++
,
j
++
)
{
txdata
[
j
++
]
=
((
int16_t
*
)
dummy_tx_b
)[
i
]
<<
openair0_cfg
[
0
].
iq_txshift
;
}
}
}
else
if
((
slot_offset
+
time_offset
[
aa
]
+
len
)
>
(
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME
*
fp
->
samples_per_tti
))
{
tx_offset
=
(
int
)
slot_offset
+
time_offset
[
aa
];
txdata
=
(
int16_t
*
)
&
ru
->
ru_time
.
txdata
[
aa
][
tx_offset
];
len2
=
-
tx_offset
+
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME
*
fp
->
samples_per_tti
;
for
(
i
=
0
;
i
<
(
len2
<<
1
);
i
++
)
{
txdata
[
i
]
=
((
int16_t
*
)
dummy_tx_b
)[
i
]
<<
openair0_cfg
[
0
].
iq_txshift
;
}
txdata
=
(
int16_t
*
)
&
ru
->
ru_time
.
txdata
[
aa
][
0
];
for
(
j
=
0
;
i
<
(
len
<<
1
);
i
++
,
j
++
)
{
txdata
[
j
++
]
=
((
int16_t
*
)
dummy_tx_b
)[
i
]
<<
openair0_cfg
[
0
].
iq_txshift
;
}
}
else
{
tx_offset
=
(
int
)
slot_offset
+
time_offset
[
aa
];
txdata
=
(
int16_t
*
)
&
ru
->
ru_time
.
txdata
[
aa
][
tx_offset
];
for
(
i
=
0
;
i
<
(
len
<<
1
);
i
++
)
{
txdata
[
i
]
=
((
int16_t
*
)
dummy_tx_b
)[
i
]
<<
openair0_cfg
[
0
].
iq_txshift
;
}
}
// if S-subframe switch to RX in second subframe
/*
if (subframe_select(fp,subframe) == SF_S) {
for (i=0; i<len; i++) {
ru->common_vars.txdata[0][aa][tx_offset++] = 0x00010001;
}
}
*/
if
((((
fp
->
tdd_config
==
0
)
||
(
fp
->
tdd_config
==
1
)
||
(
fp
->
tdd_config
==
2
)
||
(
fp
->
tdd_config
==
6
))
&&
(
subframe
==
0
))
||
(
subframe
==
5
))
{
// turn on tx switch N_TA_offset before
//LOG_D(HW,"subframe %d, time to switch to tx (N_TA_offset %d, slot_offset %d) \n",subframe,ru->N_TA_offset,slot_offset);
for
(
i
=
0
;
i
<
ru
->
N_TA_offset
;
i
++
)
{
tx_offset
=
(
int
)
slot_offset
+
time_offset
[
aa
]
+
i
-
ru
->
N_TA_offset
/
2
;
if
(
tx_offset
<
0
)
tx_offset
+=
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME
*
fp
->
samples_per_tti
;
if
(
tx_offset
>=
(
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME
*
fp
->
samples_per_tti
))
tx_offset
-=
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME
*
fp
->
samples_per_tti
;
ru
->
ru_time
.
txdata
[
aa
][
tx_offset
]
=
0x00000000
;
}
}
}
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
(
VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_SFGEN
,
0
);
}
typedef
struct
{
RU_t
*
ru
;
int
slot
;
}
fep_task
;
void
fep0
(
RU_t
*
ru
,
int
slot
)
{
eNB_proc_t
*
proc
=
&
ru
->
proc
;
LTE_DL_FRAME_PARMS
*
fp
=
ru
->
frame_parms
;
int
l
;
// printf("fep0: slot %d\n",slot);
remove_7_5_kHz
(
ru
,(
slot
&
1
)
+
(
proc
->
subframe_rx
<<
1
));
for
(
l
=
0
;
l
<
fp
->
symbols_per_tti
/
2
;
l
++
)
{
slot_fep_ul
(
fp
,
&
ru
->
ru_time
,
l
,
(
slot
&
1
)
+
(
proc
->
subframe_rx
<<
1
),
0
,
0
);
}
}
extern
int
oai_exit
;
static
void
*
fep_thread
(
void
*
param
)
{
RU_t
*
ru
=
(
RU_t
*
)
param
;
ru_proc_t
*
proc
=
&
ru
->
proc
;
while
(
!
oai_exit
)
{
if
(
wait_on_condition
(
&
proc
->
mutex_fep
,
&
proc
->
cond_fep
,
&
proc
->
instance_cnt_fep
,
"fep thread"
)
<
0
)
break
;
fep0
(
ru
,
0
);
if
(
release_thread
(
&
proc
->
mutex_fep
,
&
proc
->
instance_cnt_fep
,
"fep thread"
)
<
0
)
break
;
if
(
pthread_cond_signal
(
&
proc
->
cond_fep
)
!=
0
)
{
printf
(
"[eNB] ERROR pthread_cond_signal for fep thread exit
\n
"
);
exit_fun
(
"ERROR pthread_cond_signal"
);
return
NULL
;
}
}
return
(
NULL
);
}
void
init_fep_thread
(
PHY_VARS_eNB
*
eNB
,
pthread_attr_t
*
attr_fep
)
{
eNB_proc_t
*
proc
=
&
eNB
->
proc
;
proc
->
instance_cnt_fep
=
-
1
;
pthread_mutex_init
(
&
proc
->
mutex_fep
,
NULL
);
pthread_cond_init
(
&
proc
->
cond_fep
,
NULL
);
pthread_create
(
&
proc
->
pthread_fep
,
attr_fep
,
fep_thread
,
(
void
*
)
eNB
);
}
void
ru_fep_full_2thread
(
RU_t
*
ru
)
{
ru_proc_t
*
proc
=
&
ru
->
proc
;
struct
timespec
wait
;
wait
.
tv_sec
=
0
;
wait
.
tv_nsec
=
5000000L
;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
(
VCD_SIGNAL_DUMPER_FUNCTIONS_ENB_SLOT_FEP
,
1
);
start_meas
(
&
ru
->
ofdm_demod_stats
);
if
(
pthread_mutex_timedlock
(
&
proc
->
mutex_fep
,
&
wait
)
!=
0
)
{
printf
(
"[RU] ERROR pthread_mutex_lock for fep thread (IC %d)
\n
"
,
proc
->
instance_cnt_fep
);
exit_fun
(
"error locking mutex_fep"
);
return
;
}
if
(
proc
->
instance_cnt_fep
==
0
)
{
printf
(
"[RU] FEP thread busy
\n
"
);
exit_fun
(
"FEP thread busy"
);
pthread_mutex_unlock
(
&
proc
->
mutex_fep
);
return
;
}
++
proc
->
instance_cnt_fep
;
if
(
pthread_cond_signal
(
&
proc
->
cond_fep
)
!=
0
)
{
printf
(
"[RU] ERROR pthread_cond_signal for fep thread
\n
"
);
exit_fun
(
"ERROR pthread_cond_signal"
);
return
;
}
pthread_mutex_unlock
(
&
proc
->
mutex_fep
);
// call second slot in this symbol
fep0
(
ru
,
1
);
wait_on_busy_condition
(
&
proc
->
mutex_fep
,
&
proc
->
cond_fep
,
&
proc
->
instance_cnt_fep
,
"fep thread"
);
stop_meas
(
&
ru
->
ofdm_demod_stats
);
}
void
ru_fep_full
(
RU_t
*
ru
)
{
ru_proc_t
*
proc
=
&
ru
->
proc
;
int
l
;
LTE_DL_FRAME_PARMS
*
fp
=
ru
->
frame_parms
;
start_meas
(
&
ru
->
ofdm_demod_stats
);
if
(
ru
==
RC
.
ru_list
[
0
])
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
(
VCD_SIGNAL_DUMPER_FUNCTIONS_ENB_SLOT_FEP
,
1
);
remove_7_5_kHz
(
ru
,
proc
->
subframe_rx
<<
1
);
remove_7_5_kHz
(
ru
,
1
+
(
proc
->
subframe_rx
<<
1
));
for
(
l
=
0
;
l
<
fp
->
symbols_per_tti
/
2
;
l
++
)
{
slot_fep_ul
(
fp
,
&
ru
->
ru_time
,
l
,
proc
->
subframe_rx
<<
1
,
0
,
0
);
slot_fep_ul
(
fp
,
&
ru
->
ru_time
,
l
,
1
+
(
proc
->
subframe_rx
<<
1
),
0
,
0
);
}
stop_meas
(
&
ru
->
ofdm_demod_stats
);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME
(
VCD_SIGNAL_DUMPER_FUNCTIONS_ENB_SLOT_FEP
,
0
);
if
(
ru
->
node_function
==
NGFI_RRU_IF4p5
)
{
/// **** send_IF4 of rxdataF to RCC (no prach now) **** ///
send_IF4p5
(
ru
,
proc
->
frame_rx
,
proc
->
subframe_rx
,
IF4p5_PULFFT
,
0
);
}
}
void
do_prach_ru
(
RU_t
*
ru
)
{
ru_proc_t
*
proc
=
&
ru
->
proc
;
LTE_DL_FRAME_PARMS
*
fp
->
frame_parms
;
// check if we have to detect PRACH first
if
(
is_prach_subframe
(
fp
,
proc
->
frame_rx
,
proc
->
subframe_rx
)
>
0
)
{
/* accept some delay in processing - up to 5ms */
int
i
;
for
(
i
=
0
;
i
<
10
&&
proc
->
instance_cnt_prach
==
0
;
i
++
)
{
LOG_W
(
PHY
,
"[eNB] Frame %d Subframe %d, eNB PRACH thread busy (IC %d)!!
\n
"
,
proc
->
frame_rx
,
proc
->
subframe_rx
,
proc
->
instance_cnt_prach
);
usleep
(
500
);
}
if
(
proc
->
instance_cnt_prach
==
0
)
{
exit_fun
(
"PRACH thread busy"
);
return
;
}
// wake up thread for PRACH RX
if
(
pthread_mutex_lock
(
&
proc
->
mutex_prach
)
!=
0
)
{
LOG_E
(
PHY
,
"[eNB] ERROR pthread_mutex_lock for eNB PRACH thread %d (IC %d)
\n
"
,
proc
->
instance_cnt_prach
);
exit_fun
(
"error locking mutex_prach"
);
return
;
}
++
proc
->
instance_cnt_prach
;
// set timing for prach thread
proc
->
frame_prach
=
proc
->
frame_rx
;
proc
->
subframe_prach
=
proc
->
subframe_rx
;
// the thread can now be woken up
if
(
pthread_cond_signal
(
&
proc
->
cond_prach
)
!=
0
)
{
LOG_E
(
PHY
,
"[eNB] ERROR pthread_cond_signal for eNB PRACH thread %d
\n
"
,
proc
->
thread_index
);
exit_fun
(
"ERROR pthread_cond_signal"
);
return
;
}
pthread_mutex_unlock
(
&
proc
->
mutex_prach
);
}
}
targets/RT/USER/lte-ran.c
0 → 100644
View file @
09d7f3de
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targets/RT/USER/lte-ru.c
0 → 100644
View file @
09d7f3de
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