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add support for continuous transmission

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In case of TDD we usually disable TX during RX.
Unfortunately some USRPs create self-interference after disabling TX.
To be able to work-around this issue, we add the flag "--continuous-tx".
This commit is contained in:
Thomas Schlichter
2022-02-09 08:56:15 +01:00
parent 1ed58f65b7
commit 76885758aa
4 changed files with 58 additions and 34 deletions
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executables/softmodem-common.h
+4
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@@ -99,6 +99,7 @@ extern "C"
#define CONFIG_HLP_USRP_THREAD "having extra thead for usrp tx\n"
#define CONFIG_HLP_NFAPI "Change the nFAPI mode for NR\n"
#define CONFIG_L1_EMULATOR "Run in L1 emulated mode (disable PHY layer)\n"
#define CONFIG_HLP_CONTINUOUS_TX "perform continuous transmission, even in TDD mode (to work around USRP issues)\n"
/*-----------------------------------------------------------------------------------------------------------------------------------------------------*/
/* command line parameters common to eNodeB and UE */
@@ -127,6 +128,7 @@ extern "C"
#define NODE_NUMBER softmodem_params.node_number
#define NON_STOP softmodem_params.non_stop
#define EMULATE_L1 softmodem_params.emulate_l1
#define CONTINUOUS_TX softmodem_params.continuous_tx
#define DEFAULT_RFCONFIG_FILE "/usr/local/etc/syriq/ue.band7.tm1.PRB100.NR40.dat";
@@ -166,6 +168,7 @@ extern int usrp_tx_thread;
{"nfapi", CONFIG_HLP_NFAPI, 0, u8ptr:&nfapi_mode, defintval:0, TYPE_UINT8, 0}, \
{"non-stop", CONFIG_HLP_NONSTOP, PARAMFLAG_BOOL, iptr:&NON_STOP, defintval:0, TYPE_INT, 0}, \
{"emulate-l1", CONFIG_L1_EMULATOR, PARAMFLAG_BOOL, iptr:&EMULATE_L1, defintval:0, TYPE_INT, 0}, \
{"continuous-tx", CONFIG_HLP_CONTINUOUS_TX,PARAMFLAG_BOOL, iptr:&CONTINUOUS_TX, defintval:0, TYPE_INT, 0}, \
}
#define CONFIG_HLP_NSA "Enable NSA mode \n"
@@ -262,6 +265,7 @@ typedef struct {
uint16_t node_number;
int non_stop;
int emulate_l1;
int continuous_tx;
} softmodem_params_t;
extern uint64_t get_softmodem_optmask(void);