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Commit 782053f0 authored by frtabu's avatar frtabu
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enhance channel model configuration

parent 3b1b74cf
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Showing with 192 additions and 42 deletions
ci-scripts/conf_files/channelmod_rfsimu.conf 0 → 100644
View file @ 782053f0
/* configuration for channel modelisation */
/* To be included in main config file when */
/* channel modelisation is used (rfsimulator with chanmod options enabled) */
channelmod = {
max_chan=10;
modellist="modellist_rfsimu_1";
modellist_rfsimu_1 = (
{
model_name = "rfsimu_channel_ue0"
type = "AWGN";
ploss_dB = 0;
noise_power_dB = 0;
forgetfact = 0;
offset = 0;
ds_tdl = 0;
},
{
model_name = "rfsimu_channel_ue0"
type = "AWGN";
ploss_dB = 0;
noise_power_dB = 0;
forgetfact = 0;
offset = 0;
ds_tdl = 0;
},
);
modellist_rfsimu_2 = (
{
model_name = "rfsimu_channel_ue0"
type = "AWGN";
ploss_dB = 0;
noise_power_dB = 0;
forgetfact = 0;
offset = 0;
ds_tdl = 0;
},
{
model_name = "rfsimu_channel_ue0"
type = "AWGN";
ploss_dB = 0;
noise_power_dB = 0;
forgetfact = 0;
offset = 0;
ds_tdl = 0;
},
);
};
common/config/config_cmdline.c
View file @ 782053f0
......@@ -255,7 +255,7 @@ int config_process_cmdline(paramdef_t *cfgoptions,int numoptions, char *prefix)
if ( ((strlen(oneargv) == 2) && (strcmp(oneargv + 1,cfgpath) == 0)) || /* short option, one "-" */
((strlen(oneargv) > 2) && (strcmp(oneargv + 2,cfgpath ) == 0 )) || /* long option beginning with "--" */
((strlen(oneargv) == 2) && (strcmp(oneargv + 1,cfgoptions[n].optname) == 0) && (cfgoptions[n].paramflags & PARAMFLAG_CMDLINE_NOPREFIXENABLED )) ||
((strlen(oneargv) > 2) && (strcmp(oneargv + 2,cfgpath ) == 0 ) && (cfgoptions[n].paramflags & PARAMFLAG_CMDLINE_NOPREFIXENABLED )) ) {
((strlen(oneargv) > 2) && (strcmp(oneargv + 2, cfgoptions[n].optname) == 0 ) && (cfgoptions[n].paramflags & PARAMFLAG_CMDLINE_NOPREFIXENABLED )) ) {
char *valptr=NULL;
int ret;
config_get_if()->argv_info[i] |= CONFIG_CMDLINEOPT_PROCESSED;
......
openair1/SIMULATION/TOOLS/random_channel.c
View file @ 782053f0
......@@ -61,7 +61,9 @@ static telnetshell_vardef_t channelmod_vardef[] = {
static double snr_dB=25;
static double sinr_dB=0;
static unsigned int max_chan;
static channel_desc_t** defined_channels;
static channel_desc_t **defined_channels;
static char modellist_name[MAX_OPTNAME_SIZE];
void fill_channel_desc(channel_desc_t *chan_desc,
uint8_t nb_tx,
uint8_t nb_rx,
......@@ -494,16 +496,17 @@ struct complex *R_sqrt_22_EPA_medium[1] = {R_sqrt_22_EPA_medium_tap};
//Rayleigh1_orth_eff_ch_TM4
channel_desc_t *new_channel_desc_scm(uint8_t nb_tx,
uint8_t nb_rx,
SCM_t channel_model,
double sampling_rate,
double channel_bandwidth,
double DS_TDL,
double DS_TDL,
double forgetting_factor,
int32_t channel_offset,
double path_loss_dB,
float noise_power_dB) {
float noise_power_dB) {
channel_desc_t *chan_desc = (channel_desc_t *)calloc(1,sizeof(channel_desc_t));
for(int i=0; i<max_chan;i++) {
if (defined_channels[i] == NULL) {
......@@ -540,6 +543,7 @@ channel_desc_t *new_channel_desc_scm(uint8_t nb_tx,
double *tdl_amps_dB;
double *tdl_delays;
/* Spatial Channel Models (SCM) channel model from TR 38.901 Section 7.7.2 */
switch (channel_model) {
case SCM_A:
LOG_W(OCM,"channel model not yet supported\n");
......@@ -670,6 +674,7 @@ channel_desc_t *new_channel_desc_scm(uint8_t nb_tx,
break;
/* tapped delay line (TDL) channel model from TR 38.901 Section 7.7.2 */
case TDL_A:
case TDL_B:
case TDL_C:
......@@ -1631,8 +1636,21 @@ channel_desc_t *new_channel_desc_scm(uint8_t nb_tx,
chan_desc->nb_paths = 10;
return(chan_desc);
}
} /* channel_desc_t *new_channel_desc_scm */
channel_desc_t * find_channel_desc_fromname( char *modelname ) {
for(int i=0; i<max_chan;i++) {
if (defined_channels[i] != NULL) {
if (strcmp(defined_channels[i]->model_name,modelname) == 0)
return defined_channels[i];
}
}
LOG_E(OCM,"Model %s not found \n", modelname);
return NULL;
} /* channel_desc_t * new_channel_desc_fromconfig */
void free_channel_desc_scm(channel_desc_t *ch) {
// Must be made cleanly, a lot of leaks...
defined_channels[ch->chan_idx]=NULL;
......@@ -1657,7 +1675,8 @@ void free_channel_desc_scm(channel_desc_t *ch) {
free(ch->R_sqrt);
free(ch->ch);
free(ch->chF);
free(ch->a);
free(ch->a);
free(ch->model_name);
free(ch);
}
......@@ -1851,7 +1870,7 @@ double N_RB2channel_bandwidth(uint16_t N_RB) {
break;
default:
LOG_E(PHY,"Unknown N_PRB\n");
LOG_E(OCM,"Unknown N_PRB\n");
return(-1);
}
return(channel_bandwidth);
......@@ -1989,18 +2008,74 @@ double channelmod_get_sinr_dB(void) {
void init_channelmod(void) {
paramdef_t channelmod_params[] = CHANNELMOD_PARAMS_DESC;
int ret = config_get( channelmod_params,sizeof(channelmod_params)/sizeof(paramdef_t),CHANNELMOD_SECTION);
int numparams=sizeof(channelmod_params)/sizeof(paramdef_t);
int ret = config_get( channelmod_params,numparams,CHANNELMOD_SECTION);
AssertFatal(ret >= 0, "configuration couldn't be performed");
defined_channels=calloc(max_chan,sizeof( channel_desc_t*));
AssertFatal(defined_channels!=NULL, "couldn't allocate %u channel descriptors\n",max_chan);
/* look for telnet server, if it is loaded, add the channel modeling commands to it */
add_telnetcmd_func_t addcmd = (add_telnetcmd_func_t)get_shlibmodule_fptr("telnetsrv", TELNET_ADDCMD_FNAME);
if (addcmd != NULL) {
addcmd("channelmod",channelmod_vardef,channelmod_cmdarray);
}
} /* init_channelmod */
void load_channellist(uint8_t nb_tx, uint8_t nb_rx, double sampling_rate, double channel_bandwidth) {
paramdef_t channelmod_params[] = CHANNELMOD_PARAMS_DESC;
int numparams=sizeof(channelmod_params)/sizeof(paramdef_t);
int ret = config_get( channelmod_params,numparams,CHANNELMOD_SECTION);
AssertFatal(ret >= 0, "configuration couldn't be performed");
defined_channels=calloc(max_chan,sizeof( channel_desc_t*));
AssertFatal(defined_channels!=NULL, "couldn't allocate %u channel descriptors\n",max_chan);
paramdef_t achannel_params[] = CHANNELMOD_MODEL_PARAMS_DESC;
paramlist_def_t channel_list;
memset(&channel_list,0,sizeof(paramlist_def_t));
strncpy(channel_list.listname,modellist_name,MAX_OPTNAME_SIZE-1);
numparams = sizeof(achannel_params)/sizeof(paramdef_t);
config_getlist( &channel_list,achannel_params,numparams, CHANNELMOD_SECTION);
AssertFatal(channel_list.numelt>0, "List %s.%s not found in config filee\n",CHANNELMOD_SECTION,CHANNELMOD_MODELLIST_PARANAME);
int pindex_NAME = config_paramidx_fromname(channelmod_params,numparams, CHANNELMOD_MODEL_NAME_PNAME);
int pindex_DT = config_paramidx_fromname(channelmod_params,numparams, CHANNELMOD_MODEL_DT_PNAME );
int pindex_FF = config_paramidx_fromname(channelmod_params,numparams, CHANNELMOD_MODEL_FF_PNAME );
int pindex_CO = config_paramidx_fromname(channelmod_params,numparams, CHANNELMOD_MODEL_CO_PNAME );
int pindex_PL = config_paramidx_fromname(channelmod_params,numparams, CHANNELMOD_MODEL_PL_PNAME );
int pindex_NP = config_paramidx_fromname(channelmod_params,numparams, CHANNELMOD_MODEL_NP_PNAME );
int pindex_TYPE = config_paramidx_fromname(channelmod_params,numparams, CHANNELMOD_MODEL_TYPE_PNAME);
for (int i=0; i<channel_list.numelt; i++) {
int modid = modelid_fromname( *(channel_list.paramarray[i][pindex_TYPE].strptr) );
if (modid <0) {
LOG_E(OCM,"Valid channel model types:\n");
for (int m=0; channelmod_names[i].name != NULL ; m++) {
printf(" %s ", map_int_to_str(channelmod_names,m ));
}
AssertFatal(0, "\n Choose a valid model type\n");
}
channel_desc_t *channeldesc_p = new_channel_desc_scm(nb_tx,nb_rx,modid,sampling_rate,channel_bandwidth,
*(channel_list.paramarray[i][pindex_DT].dblptr), *(channel_list.paramarray[i][pindex_FF].dblptr),
*(channel_list.paramarray[i][pindex_CO].iptr), *(channel_list.paramarray[i][pindex_PL].dblptr),
*(channel_list.paramarray[i][pindex_NP].dblptr) );
AssertFatal( (channeldesc_p!= NULL), "Could not allocate channel %s type %s \n",*(channelmod_params[pindex_NAME].strptr), *(channelmod_params[pindex_TYPE].strptr));
channeldesc_p->model_name = strdup(*(channel_list.paramarray[i][pindex_NAME].strptr));
LOG_I(OCM,"Model %s type %s allocated from config file, list %s\n",*(channel_list.paramarray[i][pindex_NAME].strptr),
*(channel_list.paramarray[i][pindex_TYPE].strptr), modellist_name);
} /* for loop on channel_list */
/* look for telnet server, if it is loaded, add the channel modeling commands to it */
add_telnetcmd_func_t addcmd = (add_telnetcmd_func_t)get_shlibmodule_fptr("telnetsrv", TELNET_ADDCMD_FNAME);
if (addcmd != NULL) {
addcmd("channelmod",channelmod_vardef,channelmod_cmdarray);
}
}
} /* load_channelist */
#ifdef RANDOM_CHANNEL_MAIN
#define sampling_rate 5.0
......
openair1/SIMULATION/TOOLS/sim.h
View file @ 782053f0
......@@ -107,8 +107,10 @@ typedef struct {
unsigned int chan_idx;
/// id of the channel modeling algorithm
int modelid;
/// identifies channel descriptor owner (the module which created this descriptor)
/// identifies channel descriptor owner (the module which created this descriptor
channelmod_moduleid_t module_id;
/// name of this descriptor,used for model created from config file at init time
char *model_name;
/// flags to properly trigger memory free
unsigned int free_flags;
} channel_desc_t;
......@@ -242,12 +244,37 @@ typedef enum {
#define CONFIG_HLP_SNR "Set average SNR in dB (for --siml1 option)\n"
#define CHANNELMOD_SECTION "channelmod"
/* global channel modelization parameters */
#define CHANNELMOD_MODELLIST_PARANAME "modellist"
#define CHANNELMOD_HELP_MODELLIST "<list name> channel list name in config file describing the model type and its parameters\n"
#define CHANNELMOD_PARAMS_DESC { \
{"s" , CONFIG_HLP_SNR, PARAMFLAG_CMDLINE_NOPREFIXENABLED, dblptr:&snr_dB, defdblval:25, TYPE_DOUBLE, 0},\
{"sinr_dB", NULL, 0 , dblptr:&sinr_dB, defdblval:0 , TYPE_DOUBLE, 0},\
{"max_chan, CONFIG_HLP_MAX_CHAN", 0, uptr:&max_chan, defintval:10, TYPE_UINT, 0},\
{"s" , CONFIG_HLP_SNR, PARAMFLAG_CMDLINE_NOPREFIXENABLED, dblptr:&snr_dB, defdblval:25, TYPE_DOUBLE, 0},\
{"sinr_dB", NULL, 0, dblptr:&sinr_dB, defdblval:0 , TYPE_DOUBLE, 0},\
{"max_chan", "Max number of runtime models", 0, uptr:&max_chan, defintval:10, TYPE_UINT, 0},\
{CHANNELMOD_MODELLIST_PARANAME, CHANNELMOD_HELP_MODELLIST, 0, strptr:(char **)&modellist_name, defstrval:"DefaultChannelList", TYPE_STRING, 0 },\
}
/* parameters for one model */
#define CHANNELMOD_MODEL_NAME_PNAME "model_name"
#define CHANNELMOD_MODEL_TYPE_PNAME "type"
#define CHANNELMOD_MODEL_PL_PNAME "ploss_dB"
#define CHANNELMOD_MODEL_NP_PNAME "noise_power_dB"
#define CHANNELMOD_MODEL_FF_PNAME "forgetfact"
#define CHANNELMOD_MODEL_CO_PNAME "offset"
#define CHANNELMOD_MODEL_DT_PNAME "ds_tdl"
#define CHANNELMOD_MODEL_PARAMS_DESC { \
{CHANNELMOD_MODEL_NAME_PNAME, "name of the model\n", 0, strptr:NULL , defstrval:"", TYPE_STRING, 0 },\
{CHANNELMOD_MODEL_TYPE_PNAME, "name of the model type\n", 0, strptr:NULL , defstrval:"AWGN", TYPE_STRING, 0 },\
{CHANNELMOD_MODEL_PL_PNAME, "channel path loss in dB\n", 0, dblptr:NULL, defdblval:0, TYPE_DOUBLE, 0 },\
{CHANNELMOD_MODEL_NP_PNAME, "channel noise in dB\n", 0, dblptr:NULL, defdblval:0, TYPE_DOUBLE, 0 },\
{CHANNELMOD_MODEL_FF_PNAME, "channel forget factor ((0 to 1)\n", 0, dblptr:NULL, defdblval:0, TYPE_DOUBLE, 0 },\
{CHANNELMOD_MODEL_CO_PNAME, "channel offset in samps\n", 0, iptr:NULL, defintval:0, TYPE_INT, 0 },\
{CHANNELMOD_MODEL_DT_PNAME, "delay spread for TDL models\n", 0, dblptr:NULL, defdblval:0, TYPE_DOUBLE, 0 }\
}
#include "platform_constants.h"
typedef struct {
......@@ -276,13 +303,17 @@ typedef struct {
channel_desc_t *new_channel_desc_scm(uint8_t nb_tx,
uint8_t nb_rx,
SCM_t channel_model,
double sampling_rate,
double sampling_rate,
double channel_bandwidth,
double TDL_DS,
double TDL_DS,
double forgetting_factor,
int32_t channel_offset,
double path_loss_dB,
float noise_power_dB);
float noise_power_dB);
channel_desc_t *find_channel_desc_fromname( char *modelname );
/**
\brief free memory allocated for a model descriptor
\param ch points to the model, which cannot be used after calling this fuction
......@@ -458,7 +489,7 @@ int modelid_fromname(char *modelname);
double channelmod_get_snr_dB(void);
double channelmod_get_sinr_dB(void);
void init_channelmod(void) ;
void load_channellist(uint8_t nb_tx, uint8_t nb_rx, double sampling_rate, double channel_bandwidth) ;
double N_RB2sampling_rate(uint16_t N_RB);
double N_RB2channel_bandwidth(uint16_t N_RB);
......
targets/ARCH/rfsimulator/simulator.c
View file @ 782053f0
......@@ -69,7 +69,9 @@ extern RAN_CONTEXT_t RC;
#define RFSIMU_SECTION "rfsimulator"
#define RFSIMU_OPTIONS_PARAMNAME "options"
# define RFSIM_CONFIG_HELP_OPTIONS " list of comma separated options to enable rf simulator functionalities. Available options: \n"\
#define RFSIM_CONFIG_HELP_OPTIONS " list of comma separated options to enable rf simulator functionalities. Available options: \n"\
" chanmod: enable channel modelisation\n"\
" saviq: enable saving written iqs to a file\n"
/*-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
......@@ -78,14 +80,14 @@ extern RAN_CONTEXT_t RC;
/*-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
#define simOpt PARAMFLAG_NOFREE|PARAMFLAG_CMDLINE_NOPREFIXENABLED
#define RFSIMULATOR_PARAMS_DESC { \
{"serveraddr", "<ip address to connect to>\n", simOpt , strptr:&(rfsimulator->ip), defstrval:"127.0.0.1", TYPE_STRING, 0 },\
{"serverport", "<port to connect to>\n", simOpt, u16ptr:&(rfsimulator->port), defuintval:PORT, TYPE_UINT16, 0 },\
{RFSIMU_OPTIONS_PARAMNAME, RFSIM_CONFIG_HELP_OPTIONS, 0, strlistptr:NULL, defstrlistval:NULL, TYPE_STRINGLIST,0 },\
{"IQfile", "<file path to use when saving IQs>\n",simOpt, strptr:&(saveF), defstrval:"/tmp/rfsimulator.iqs",TYPE_STRING, 0 },\
{"modelname", "<channel model name>\n", simOpt, strptr:&(modelname), defstrval:"AWGN", TYPE_STRING, 0 },\
{"ploss", "<channel path loss in dB>\n", simOpt, dblptr:&(rfsimulator->chan_pathloss), defdblval:0, TYPE_DOUBLE, 0 },\
{"forgetfact", "<channel forget factor ((0 to 1)>\n", simOpt, dblptr:&(rfsimulator->chan_forgetfact), defdblval:0, TYPE_DOUBLE, 0 },\
{"offset", "<channel offset in samps>\n", simOpt, iptr:&(rfsimulator->chan_offset), defintval:0, TYPE_INT, 0 }\
{"serveraddr", "<ip address to connect to>\n", simOpt, strptr:&(rfsimulator->ip), defstrval:"127.0.0.1", TYPE_STRING, 0 },\
{"serverport", "<port to connect to>\n", simOpt, u16ptr:&(rfsimulator->port), defuintval:PORT, TYPE_UINT16, 0 },\
{RFSIMU_OPTIONS_PARAMNAME, RFSIM_CONFIG_HELP_OPTIONS, 0, strlistptr:NULL, defstrlistval:NULL, TYPE_STRINGLIST,0 },\
{"IQfile", "<file path to use when saving IQs>\n",simOpt, strptr:&(saveF), defstrval:"/tmp/rfsimulator.iqs",TYPE_STRING, 0 },\
{"modelname", "<channel model name>\n", simOpt, strptr:&(modelname), defstrval:"AWGN", TYPE_STRING, 0 },\
{"ploss", "<channel path loss in dB>\n", simOpt, dblptr:&(rfsimulator->chan_pathloss), defdblval:0, TYPE_DOUBLE, 0 },\
{"forgetfact", "<channel forget factor ((0 to 1)>\n", simOpt, dblptr:&(rfsimulator->chan_forgetfact), defdblval:0, TYPE_DOUBLE, 0 },\
{"offset", "<channel offset in samps>\n", simOpt, iptr:&(rfsimulator->chan_offset), defintval:0, TYPE_INT, 0 }\
};
......@@ -183,16 +185,8 @@ static void allocCirBuf(rfsimulator_state_t *bridge, int sock) {
tableNor(rand);
init_done=true;
}
ptr->channel_model=new_channel_desc_scm(bridge->tx_num_channels,bridge->rx_num_channels,
bridge->channelmod,
bridge->sample_rate,
bridge->tx_bw,
30e-9, // TDL delay-spread parameter
bridge->chan_forgetfact, // forgetting_factor
bridge->chan_offset, // maybe used for TA
bridge->chan_pathloss,
bridge->noise_power_dB); // path_loss in dB
char *modelname = (bridge->typeStamp == ENB_MAGICDL) ? "rfsimu_channel_ue0":"rfsimu_channel_enB0";
ptr->channel_model=find_channel_desc_fromname(modelname); // path_loss in dB
set_channeldesc_owner(ptr->channel_model, RFSIMU_MODULEID);
random_channel(ptr->channel_model,false);
}
......@@ -301,6 +295,7 @@ static void rfsimulator_readconfig(rfsimulator_state_t *rfsimulator) {
break;
} else if (strcmp(rfsimu_params[p].strlistptr[i],"chanmod") == 0) {
init_channelmod();
load_channellist(rfsimulator->tx_num_channels, rfsimulator->rx_num_channels, rfsimulator->sample_rate, rfsimulator->tx_bw);
rfsimulator->channelmod=modelid_fromname(modelname);
} else {
fprintf(stderr,"Unknown rfsimulator option: %s\n",rfsimu_params[p].strlistptr[i]);
......@@ -778,6 +773,11 @@ int device_init(openair0_device *device, openair0_config_t *openair0_cfg) {
// to change the log level, use this on command line
// --log_config.hw_log_level debug
rfsimulator_state_t *rfsimulator = (rfsimulator_state_t *)calloc(sizeof(rfsimulator_state_t),1);
// initialize channel simulation
rfsimulator->tx_num_channels=openair0_cfg->tx_num_channels;
rfsimulator->rx_num_channels=openair0_cfg->rx_num_channels;
rfsimulator->sample_rate=openair0_cfg->sample_rate;
rfsimulator->tx_bw=openair0_cfg->tx_bw;
rfsimulator_readconfig(rfsimulator);
pthread_mutex_init(&Sockmutex, NULL);
LOG_I(HW,"rfsimulator: running as %s\n", rfsimulator-> typeStamp == ENB_MAGICDL ? "server waiting opposite rfsimulators to connect" : "client: will connect to a rfsimulator server side");
......@@ -802,11 +802,7 @@ int device_init(openair0_device *device, openair0_config_t *openair0_cfg) {
rfsimulator->buf[i].conn_sock=-1;
AssertFatal((rfsimulator->epollfd = epoll_create1(0)) != -1,"");
// initialize channel simulation
rfsimulator->tx_num_channels=openair0_cfg->tx_num_channels;
rfsimulator->rx_num_channels=openair0_cfg->rx_num_channels;
rfsimulator->sample_rate=openair0_cfg->sample_rate;
rfsimulator->tx_bw=openair0_cfg->tx_bw;
//randominit(0);
set_taus_seed(0);
/* look for telnet server, if it is loaded, add the channel modeling commands to it */
......
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