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

Merge remote-tracking branch 'origin/sim-channels' into integration_2020_wk15

Browse Source
This commit is contained in:
hardy
2021-04-14 14:37:09 +02:00
parent 86881b1463 ceb96a36e7
commit 246afc7ccb
59 changed files with 1534 additions and 1114 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair1/SIMULATION/TOOLS/sim.h
+48 -9
View File
@@ -89,6 +89,7 @@ typedef struct {
double path_loss_dB;
///additional delay of channel in samples.
int32_t channel_offset;
float noise_power_dB;
///This parameter (0...1) allows for simple 1st order temporal variation. 0 means a new channel every call, 1 means keep channel constant all the time
double forgetting_factor;
///needs to be set to 1 for the first call, 0 otherwise.
@@ -106,8 +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;
@@ -241,12 +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, 60 },\
}
/* 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:-50, 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 {
@@ -275,12 +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);
double path_loss_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
@@ -293,6 +326,12 @@ void free_channel_desc_scm(channel_desc_t *ch);
\param module_id identifies the channel model. should be define as a macro in simu.h
*/
void set_channeldesc_owner(channel_desc_t *cdesc, channelmod_moduleid_t module_id);
/**
\brief This function set a model name to a model descriptor, can be later used to identify a allocated channel model
\param cdesc points to the model descriptor
\param module_name is the C string to use as model name for the channel pointed by cdesc
*/
void set_channeldesc_name(channel_desc_t *cdesc,char *modelname);
/** \fn void random_channel(channel_desc_t *desc)
\brief This routine generates a random channel response (time domain) according to a tapped delay line model.
\param desc Pointer to the channel descriptor
@@ -452,11 +491,11 @@ void multipath_tv_channel(channel_desc_t *desc,
/**@} */
/**@} */
int modelid_fromname(char *modelname);
int modelid_fromstrtype(char *modeltype);
double channelmod_get_snr_dB(void);
double channelmod_get_sinr_dB(void);
void init_channelmod(void) ;
int 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);