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handle prach rx for enb node functions

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This commit is contained in:
S. Sandeep Kumar
2016-06-17 04:14:41 +05:30
parent d7781f7a31
commit 03f66cb85e
4 changed files with 182 additions and 141 deletions
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openair1/PHY/LTE_TRANSPORT/if4_tools.c
+34 -19
View File
@@ -45,11 +45,11 @@
#include "PHY/TOOLS/ALAW/alaw_lut.h"
// Get device information
void send_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc) {
LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms;
int32_t **txdataF = eNB->common_vars.txdataF[0];
void send_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t packet_type) {
LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms;
int32_t **txdataF = eNB->common_vars.txdataF[0];
uint16_t symbol_id, element_id;
uint16_t symbol_id, element_id;
uint16_t db_fulllength = 12*fp->N_RB_DL;
uint16_t db_halflength = db_fulllength>>1;
int slotoffsetF = (proc->subframe_tx)*(fp->ofdm_symbol_size)*((fp->Ncp==1) ? 12 : 14) + 1;
@@ -58,7 +58,7 @@ void send_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc) {
int16_t *data_block = (int16_t*)malloc(db_fulllength*sizeof(int16_t));
// Caller: RCC - DL *** handle RRU case - UL and PRACH ***
if (eNB->node_function == NGFI_RCC_IF4) {
if (packet_type == IF4_PDLFFT) {
IF4_dl_packet_t *dl_packet = (IF4_dl_packet_t*)malloc(sizeof_IF4_dl_packet_t);
gen_IF4_dl_packet(dl_packet, proc);
@@ -93,7 +93,7 @@ void send_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc) {
slotoffsetF += fp->ofdm_symbol_size;
blockoffsetF += fp->ofdm_symbol_size;
}
}else {
} else if (packet_type == IF4_PULFFT) {
IF4_ul_packet_t *ul_packet = (IF4_ul_packet_t*)malloc(sizeof_IF4_ul_packet_t);
gen_IF4_ul_packet(ul_packet, proc);
@@ -101,7 +101,7 @@ void send_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc) {
for (symbol_id=0; symbol_id<fp->symbols_per_tti; symbol_id++) {
// Do compression of the two parts and generate data blocks - rxdataF
// Do compression of the two parts and generate data blocks - rxdataF
for (element_id=0; element_id<db_halflength; element_id++) {
data_block[element_id] = lin2alaw[ (rxdataF[0][blockoffsetF+element_id] & 0xffff) + 32768 ];
data_block[element_id] |= lin2alaw[ (rxdataF[0][blockoffsetF+element_id]>>16) + 32768 ]<<8;
@@ -118,19 +118,23 @@ void send_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc) {
slotoffsetF += fp->ofdm_symbol_size;
blockoffsetF += fp->ofdm_symbol_size;
}
}
} else if (packet_type == IF4_PRACH) {
} else {
AssertFatal(1==0, "send_IF4 - Unknown packet_type %x", packet_type);
}
return;
}
void recv_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t *packet_type, uint32_t *symbol_number) {
// Caller: RRU - DL *** handle RCC case - UL and PRACH ***
if (eNB->node_function == NGFI_RRU_IF4) {
printf("\n Recv IF4 for frame %d, subframe %d and symbol %d\n", proc->frame_tx, proc->subframe_tx, symbol_id);
*packet_type = 0;
int16_t *data_block=NULL;
// Read packet(s) from the fronthaul
// for(i=0; i<fp->symbols_per_tti; i++) {
// Read packet(s) from the fronthaul
// if (dev->eth_dev.trx_read_func (&dev->eth_dev,
// timestamp_rx,
// rx_eNB,
@@ -139,16 +143,27 @@ void recv_IF4(PHY_VARS_eNB *eNB, eNB_rxtx_proc_t *proc, uint16_t *packet_type, u
// ) < 0) {
// perror("RRU : ETHERNET read");
// }
// printf("\n Recv IF4 for frame %d, subframe %d and symbol %d\n", proc->frame_tx, proc->subframe_tx, symbol_id);
//*packet_type = ;
if (*packet_type == IF4_PDLFFT) {
// Apply reverse processing - decompression
// txAlawtolinear( Datablock )
// Generate and return the OFDM symbols (txdataF)
//txDataF
//}
}else {
// txDataF
}
} else if (*packet_type == IF4_PULFFT) {
} else if (*packet_type == IF4_PRACH) {
} else {
AssertFatal(1==0, "recv_IF4 - Unknown packet_type %x", *packet_type);
}
return;
}
void gen_IF4_dl_packet(IF4_dl_packet_t *dl_packet, eNB_rxtx_proc_t *proc) {
openair1/PHY/LTE_TRANSPORT/if4_tools.h
+1 -1
View File
@@ -181,6 +181,6 @@ void gen_IF4_ul_packet(IF4_ul_packet_t*, eNB_rxtx_proc_t*);
void gen_IF4_prach_packet(IF4_prach_packet_t*, eNB_rxtx_proc_t*);
void send_IF4(PHY_VARS_eNB*, eNB_rxtx_proc_t*);
void send_IF4(PHY_VARS_eNB*, eNB_rxtx_proc_t*, uint16_t);
void recv_IF4(PHY_VARS_eNB*, eNB_rxtx_proc_t*, uint16_t*, uint32_t*);
openair1/SCHED/phy_procedures_lte_eNb.c
+146 -120
View File
@@ -44,6 +44,8 @@
#include "SCHED/defs.h"
#include "SCHED/extern.h"
#include "PHY/LTE_TRANSPORT/if4_tools.h"
#ifdef EMOS
#include "SCHED/phy_procedures_emos.h"
#endif
@@ -2471,7 +2473,6 @@ void cba_procedures(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc,int UE_id,int harq_p
}
void phy_procedures_eNB_common_RX(PHY_VARS_eNB *eNB,const uint8_t abstraction_flag) {
int i,l;
@@ -2481,158 +2482,183 @@ void phy_procedures_eNB_common_RX(PHY_VARS_eNB *eNB,const uint8_t abstraction_fl
eNB_proc_t *proc = &eNB->proc;
int subframe = proc->subframe_rx;
int frame = proc->frame_rx;
int symbol_number, symbol_mask, symbol_mask_full, prach_rx, packet_type;
int prach_rx;
uint16_t packet_type;
uint32_t symbol_number;
uint32_t symbol_mask, symbol_mask_full;
if (subframe==9) {
subframe=0;
frame++;
frame&=1023;
} else {
subframe++;
}
else subframe++;
// VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_ENB_COMMON_RX,1);
start_meas(&eNB->phy_proc_rx);
#ifdef DEBUG_PHY_PROC
LOG_D(PHY,"[eNB %d] Frame %d: Doing phy_procedures_eNB_RX(%d)\n",eNB->Mod_id,frame, subframe);
#endif
if (abstraction_flag==0) { // grab signal in chunks of 500 us (1 slot)
if ((eNB->node_function == NGFI_RRU_IF4) ||
(eNB->node_function == eNodeB_3GPP)) { // acquisition from RF and front-end processing
if ((eNB->node_function == NGFI_RRU_IF4) ||
(eNB->node_function == eNodeB_3GPP)) { // acquisition from RF and front-end processing
for (i=0; i<fp->nb_antennas_rx; i++)
rxp[i] = (void*)&eNB->common_vars.rxdata[0][i][subframe*fp->samples_per_tti];
for (i=0; i<fp->nb_antennas_rx; i++)
rxp[i] = (void*)&eNB->common_vars.rxdata[0][i][subframe*fp->samples_per_tti];
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_READ, 1 );
rxs = eNB->rfdevice.trx_read_func(&eNB->rfdevice,
&proc->timestamp_rx,
rxp,
fp->samples_per_tti,
fp->nb_antennas_rx);
proc->frame_rx = (proc->timestamp_rx / (fp->samples_per_tti*10))&1023;
proc->subframe_rx = (proc->timestamp_rx / fp->samples_per_tti)%10;
if (proc->first_rx == 0) {
AssertFatal(proc->subframe_rx == subframe, "Received Timestamp doesn't correspond to the time we think it is (proc->subframe_rx %d, subframe %d)",proc->subframe_rx,subframe);
AssertFatal(proc->frame_rx == frame, "Received Timestamp doesn't correspond to the time we think it is (proc->frame_rx %d frame %d)",proc->frame_rx,frame);
}
else
proc->first_rx = 0;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_READ, 1 );
rxs = eNB->rfdevice.trx_read_func(&eNB->rfdevice,
&proc->timestamp_rx,
rxp,
fp->samples_per_tti,
fp->nb_antennas_rx);
proc->frame_rx = (proc->timestamp_rx / (fp->samples_per_tti*10))&1023;
proc->subframe_rx = (proc->timestamp_rx / fp->samples_per_tti)%10;
// printf("timestamp_rx %lu, frame %d(%d), subframe %d(%d)\n",proc->timestamp_rx,proc->frame_rx,frame,proc->subframe_rx,subframe);
if (proc->first_rx == 0) {
AssertFatal(proc->subframe_rx == subframe, "Received Timestamp doesn't correspond to the time we think it is (proc->subframe_rx %d, subframe %d)",proc->subframe_rx,subframe);
AssertFatal(proc->frame_rx == frame, "Received Timestamp doesn't correspond to the time we think it is (proc->frame_rx %d frame %d)",proc->frame_rx,frame);
} else {
proc->first_rx = 0;
}
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TRX_TS, proc->timestamp_rx&0xffffffff );
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_FRAME_NUMBER_RX_ENB, frame );
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_SUBFRAME_NUMBER_RX_ENB, subframe );
//printf("timestamp_rx %lu, frame %d(%d), subframe %d(%d)\n",proc->timestamp_rx,proc->frame_rx,frame,proc->subframe_rx,subframe);
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TRX_TS, proc->timestamp_rx&0xffffffff );
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_FRAME_NUMBER_RX_ENB, frame );
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_SUBFRAME_NUMBER_RX_ENB, subframe );
if (rxs != fp->samples_per_tti)
exit_fun( "problem receiving samples" );
if (rxs != fp->samples_per_tti)
exit_fun( "problem receiving samples" );
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_READ, 0 );
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_READ, 0 );
// now do common RX processing for first slot in subframe
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_ENB_SLOT_FEP,1);
remove_7_5_kHz(eNB,subframe<<1);
remove_7_5_kHz(eNB,1+(subframe<<1));
for (l=0; l<fp->symbols_per_tti/2; l++) {
slot_fep_ul(fp,
&eNB->common_vars,
l,
subframe<<1,
0,
0
);
slot_fep_ul(fp,
&eNB->common_vars,
l,
1+(subframe<<1),
0,
0
);
}
// now do common RX processing for first slot in subframe
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_ENB_SLOT_FEP,1);
remove_7_5_kHz(eNB,subframe<<1);
remove_7_5_kHz(eNB,1+(subframe<<1));
for (l=0; l<fp->symbols_per_tti/2; l++) {
slot_fep_ul(fp,
&eNB->common_vars,
l,
subframe<<1,
0,
0
);
slot_fep_ul(fp,
&eNB->common_vars,
l,
1+(subframe<<1),
0,
0
);
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_ENB_SLOT_FEP,0);
if (eNB->node_function == NGFI_RRU_IF4) {
/// **** send_IF4 of rxdataF to RCC **** ///
/// Handle routing to prach thread for sending prach
}
if (eNB->node_function == NGFI_RRU_IF4 && is_prach_subframe(fp, frame, subframe)<=0) {
}
else if (eNB->node_function == NGFI_RCC_IF4) {
/// **** recv_IF4 of rxdataF from RRU **** ///
/// **** recv_IF4 of prachF from RRU **** ///
// get frame/subframe information from IF4 interface
// timed loop (200 us)
//symbol_mask = 0;
//symbol_mask_full = (1<<fp->symbols_per_tti)-1;
//if (is_prach_subframe(fp,frame,subframe)>0)
//prach_rx = 0;
//else
//prach_rx = 1;
//do {
//recv_IF4(eNB, proc, &packet_type, &symbol_number);
//if (is_prach_subframe(fp,frame,subframe)>0 && packet_type == PRACH) {
//// wake up prach_rx
//prach_rx = 1;
//}
//if (packet_type == IF4_PULFFT)
//symbol_mask = symbol_mask | (1<<symbol_number);
//} while( (symbol_mask != symbol_mask_full) || (prach_rx == 0));
// Tobi aka mr monaco: ETH
}
else { // should not get here
AssertFatal(1==0, "Unknown eNB->node_function %d",eNB->node_function);
}
// check if we have to detect PRACH first
if (is_prach_subframe(fp,frame,subframe)>0) {
// 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;
}
int cnt_prach = ++proc->instance_cnt_prach;
// set timing for prach thread
proc->frame_prach = frame;
proc->subframe_prach = subframe;
pthread_mutex_unlock( &proc->mutex_prach );
if (cnt_prach == 0) {
// the thread was presumably waiting where it should and 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;
}
} else {
LOG_W( PHY,"[eNB] Frame %d, eNB PRACH thread busy!!\n", frame);
exit_fun( "PRACH thread busy" );
return;
/// **** send_IF4 of rxdataF to RCC (no prach now) **** ///
}
/// **** send_IF4 of prach to RCC **** /// done in prach thread (below)
// check if we have to detect PRACH first
if (is_prach_subframe(fp,frame,subframe)>0) {
// 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;
}
int cnt_prach = ++proc->instance_cnt_prach;
// set timing for prach thread
proc->frame_prach = frame;
proc->subframe_prach = subframe;
pthread_mutex_unlock( &proc->mutex_prach );
if (cnt_prach == 0) {
// the thread was presumably waiting where it should and 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;
}
} else {
LOG_W( PHY,"[eNB] Frame %d, eNB PRACH thread busy!!\n", frame);
exit_fun( "PRACH thread busy" );
return;
}
}
} else if (eNB->node_function == NGFI_RCC_IF4) {
/// **** recv_IF4 of rxdataF from RRU **** ///
/// **** recv_IF4 of prachF from RRU **** ///
// get frame/subframe information from IF4 interface
// timed loop (200 us)
symbol_mask = 0;
symbol_mask_full = (1<<fp->symbols_per_tti)-1;
prach_rx = 0;
do {
//recv_IF4(eNB, proc, &packet_type, &symbol_number);
if (packet_type == IF4_PULFFT) {
symbol_mask = symbol_mask | (1<<symbol_number);
} else if (is_prach_subframe(fp,frame,subframe)>0 && packet_type == PRACH) {
// wake up thread for PRACH RX
prach_rx = 1;
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;
}
int cnt_prach = ++proc->instance_cnt_prach;
// set timing for prach thread
proc->frame_prach = frame;
proc->subframe_prach = subframe;
pthread_mutex_unlock( &proc->mutex_prach );
if (cnt_prach == 0) {
// the thread was presumably waiting where it should and 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;
}
} else {
LOG_W( PHY,"[eNB] Frame %d, eNB PRACH thread busy!!\n", frame);
exit_fun( "PRACH thread busy" );
return;
}
}
} while( (symbol_mask != symbol_mask_full) && (prach_rx == 0));
// Tobi aka mr monaco: ETH
} else { // should not get here
AssertFatal(1==0, "Unknown eNB->node_function %d",eNB->node_function);
}
}
else { // grab transport channel information from network interface
} else { // grab transport channel information from network interface
}
}
void phy_procedures_eNB_uespec_RX(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc,const uint8_t abstraction_flag,const relaying_type_t r_type)
{
//RX processing for ue-specific resources (i
targets/RT/USER/lte-enb.c
+1 -1
View File
@@ -483,7 +483,7 @@ static void* eNB_thread_rxtx( void* param ) {
} else {
/// **** recv_IF4 of txdataF from RCC **** ///
//recv_IF4( eNB, proc, packet_type, symbol_number);
//recv_IF4(eNB, proc, packet_type, symbol_number);
}
}