maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

initial testing version of L1L-L1H split (RRU-RAU)

Browse Source
This commit is contained in:
Raymond Knopp
2017-04-17 10:40:23 -07:00
parent 71af8ce824
commit b42aed9ed9
134 changed files with 8669 additions and 10672 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair1/SCHED/ru_procedures.c
+135 -53
View File
@@ -1,7 +1,64 @@
/*
* 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 1.0 (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 ru_procedures.c
* \brief Implementation of RU procedures
* \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 "PHY/LTE_TRANSPORT/if4_tools.h"
#include "PHY/LTE_TRANSPORT/if5_tools.h"
#ifdef EMOS
#include "SCHED/phy_procedures_emos.h"
#endif
#include "LAYER2/MAC/extern.h"
#include "LAYER2/MAC/defs.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>
// RU OFDM Modulator, used in IF4p5 RRU, RCC/RAU with IF5, eNodeB
void do_OFDM_mod_rt(int subframe,RU_t *ru) {
extern openair0_config_t openair0_cfg[MAX_CARDS];
void feptx_ofdm(RU_t *ru) {
LTE_DL_FRAME_PARMS *fp=&ru->frame_parms;
@@ -12,11 +69,13 @@ void do_OFDM_mod_rt(int subframe,RU_t *ru) {
((fp->Ncp==1) ? 6 : 7);
int len,len2;
int16_t *txdata;
int subframe = ru->proc.subframe_tx;
// 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_F = (subframe<<1)*slot_sizeF;
slot_offset = subframe*fp->samples_per_tti;
@@ -26,26 +85,26 @@ void do_OFDM_mod_rt(int subframe,RU_t *ru) {
for (aa=0; aa<ru->nb_tx; aa++) {
if (fp->Ncp == EXTENDED) {
PHY_ofdm_mod(&ru->ru_time.txdataF[aa][slot_offset_F],
PHY_ofdm_mod(&ru->common.txdataF_BF[aa][0],
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],
PHY_ofdm_mod(&ru->common.txdataF_BF[aa][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],
normal_prefix_mod(&ru->common.txdataF_BF[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],
normal_prefix_mod(&ru->common.txdataF_BF[aa][slot_offset_F+slot_sizeF],
dummy_tx_b+(fp->samples_per_tti>>1),
7,
fp);
@@ -64,38 +123,38 @@ void do_OFDM_mod_rt(int subframe,RU_t *ru) {
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]);
if (slot_offset<0) {
txdata = (int16_t*)&ru->common.txdata[aa][(LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*fp->samples_per_tti)+tx_offset];
len2 = -(slot_offset);
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;
txdata[i] = ((int16_t*)dummy_tx_b)[i];
}
if (len2<len) {
txdata = (int16_t*)&ru->ru_time.txdata[aa][0];
txdata = (int16_t*)&ru->common.txdata[aa][0];
for (j=0; i<(len<<1); i++,j++) {
txdata[j++] = ((int16_t*)dummy_tx_b)[i]<<openair0_cfg[0].iq_txshift;
txdata[j++] = ((int16_t*)dummy_tx_b)[i];
}
}
}
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];
else if ((slot_offset+len)>(LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*fp->samples_per_tti)) {
tx_offset = (int)slot_offset;
txdata = (int16_t*)&ru->common.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[i] = ((int16_t*)dummy_tx_b)[i];
}
txdata = (int16_t*)&ru->ru_time.txdata[aa][0];
txdata = (int16_t*)&ru->common.txdata[aa][0];
for (j=0; i<(len<<1); i++,j++) {
txdata[j++] = ((int16_t*)dummy_tx_b)[i]<<openair0_cfg[0].iq_txshift;
txdata[j++] = ((int16_t*)dummy_tx_b)[i];
}
}
else {
tx_offset = (int)slot_offset+time_offset[aa];
txdata = (int16_t*)&ru->ru_time.txdata[aa][tx_offset];
tx_offset = (int)slot_offset;
txdata = (int16_t*)&ru->common.txdata[aa][tx_offset];
for (i=0; i<(len<<1); i++) {
txdata[i] = ((int16_t*)dummy_tx_b)[i]<<openair0_cfg[0].iq_txshift;
txdata[i] = ((int16_t*)dummy_tx_b)[i];
}
}
@@ -115,21 +174,53 @@ void do_OFDM_mod_rt(int subframe,RU_t *ru) {
// 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;
tx_offset = (int)slot_offset+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;
ru->common.txdata[aa][tx_offset] = 0x00000000;
}
}
LOG_I(PHY,"feptx_ofdm: frame %d, subframe %d: txp (time) %d dB, txp (freq) %d dB\n",
ru->proc.frame_tx,subframe,dB_fixed(signal_energy(txdata,fp->samples_per_tti)),
dB_fixed(signal_energy_nodc(ru->common.txdataF_BF[aa],2*slot_sizeF)));
}
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_SFGEN , 0 );
}
void feptx_prec(RU_t *ru) {
int l,i,aa;
PHY_VARS_eNB **eNB_list = ru->eNB_list,*eNB;
LTE_DL_FRAME_PARMS *fp;
int32_t ***bw;
int subframe = ru->proc.subframe_tx;
for (i=0;i<ru->num_eNB;i++) {
eNB = eNB_list[i];
fp = &eNB->frame_parms;
bw = ru->beam_weights[i];
for (l=0;l<fp->symbols_per_tti;l++) {
for (aa=0;aa<ru->nb_tx;aa++) {
beam_precoding(eNB->common_vars.txdataF,
ru->common.txdataF_BF,
fp,
bw,
subframe<<1,
l,
aa);
}
}
LOG_I(PHY,"feptx_prec: frame %d, subframe %d: txp (freq) %d dB\n",
ru->proc.frame_tx,subframe,
dB_fixed(signal_energy_nodc(ru->common.txdataF_BF[0],2*fp->symbols_per_tti*fp->ofdm_symbol_size)));
}
}
typedef struct {
RU_t *ru;
@@ -138,8 +229,8 @@ typedef struct {
void fep0(RU_t *ru,int slot) {
eNB_proc_t *proc = &ru->proc;
LTE_DL_FRAME_PARMS *fp = ru->frame_parms;
RU_proc_t *proc = &ru->proc;
LTE_DL_FRAME_PARMS *fp = &ru->frame_parms;
int l;
// printf("fep0: slot %d\n",slot);
@@ -147,10 +238,9 @@ void fep0(RU_t *ru,int 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,
&ru->common,
l,
(slot&1)+(proc->subframe_rx<<1),
0,
0
);
}
@@ -163,7 +253,7 @@ extern int oai_exit;
static void *fep_thread(void *param) {
RU_t *ru = (RU_t *)param;
ru_proc_t *proc = &ru->proc;
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;
@@ -182,22 +272,22 @@ static void *fep_thread(void *param) {
return(NULL);
}
void init_fep_thread(PHY_VARS_eNB *eNB,pthread_attr_t *attr_fep) {
void init_fep_thread(RU_t *ru,pthread_attr_t *attr_fep) {
eNB_proc_t *proc = &eNB->proc;
RU_proc_t *proc = &ru->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);
pthread_create(&proc->pthread_fep, attr_fep, fep_thread, (void*)ru);
}
void ru_fep_full_2thread(RU_t *ru) {
ru_proc_t *proc = &ru->proc;
RU_proc_t *proc = &ru->proc;
struct timespec wait;
@@ -241,31 +331,29 @@ void ru_fep_full_2thread(RU_t *ru) {
void ru_fep_full(RU_t *ru) {
void fep_full(RU_t *ru) {
ru_proc_t *proc = &ru->proc;
RU_proc_t *proc = &ru->proc;
int l;
LTE_DL_FRAME_PARMS *fp=ru->frame_parms;
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);
if (ru == RC.ru[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,
&ru->common,
l,
proc->subframe_rx<<1,
0,
0
);
slot_fep_ul(fp,
&ru->ru_time,
&ru->common,
l,
1+(proc->subframe_rx<<1),
0,
0
);
}
@@ -273,24 +361,21 @@ void ru_fep_full(RU_t *ru) {
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;
RU_proc_t *proc = &ru->proc;
LTE_DL_FRAME_PARMS *fp=&ru->frame_parms;
// check if we have to detect PRACH first
if (is_prach_subframe(fp,proc->frame_rx,proc->subframe_rx)>0) {
if (is_prach_subframe(fp,proc->frame_prach,proc->subframe_prach)>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);
LOG_W(PHY,"Frame %d Subframe %d, PRACH thread busy (IC %d)!!\n", proc->frame_prach,proc->subframe_prach,
proc->instance_cnt_prach);
usleep(500);
}
if (proc->instance_cnt_prach == 0) {
@@ -300,19 +385,16 @@ void do_prach_ru(RU_t *ru) {
// 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 );
LOG_E( PHY, "ERROR pthread_mutex_lock for PRACH thread (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);
LOG_E( PHY, "ERROR pthread_cond_signal for PRACH thread\n");
exit_fun( "ERROR pthread_cond_signal" );
return;
}