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NR UE: set time sync PI controller integral weight to 0.0 by default

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Experiments did show that the time sync is less stable in terrestrial mode if the integral part of the PI controller is used.
So set it to 0.0 by default. For NTN LEO use case we can still use it by providing the command line parameter --time-sync-I 0.2 .
fixes #846
This commit is contained in:
Thomas Schlichter
2024-09-27 17:06:42 +02:00
parent 64380eaca2
commit 791cc4f648
3 changed files with 7 additions and 3 deletions
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executables/nr-uesoftmodem.h
+1 -1
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@@ -65,7 +65,7 @@
{"SLC", CONFIG_HLP_SLF, 0, .u64ptr=&(sidelink_frequency[0][0]), .defuintval=2600000000,TYPE_UINT64,0}, \
{"num-ues", NULL, 0, .iptr=&(NB_UE_INST), .defuintval=1, TYPE_INT, 0}, \
{"time-sync-P", CONFIG_HLP_TIME_SYNC_P, 0, .dblptr=&(nrUE_params.time_sync_P), .defdblval=0.5, TYPE_DOUBLE, 0}, \
{"time-sync-I", CONFIG_HLP_TIME_SYNC_I, 0, .dblptr=&(nrUE_params.time_sync_I), .defdblval=0.2, TYPE_DOUBLE, 0}, \
{"time-sync-I", CONFIG_HLP_TIME_SYNC_I, 0, .dblptr=&(nrUE_params.time_sync_I), .defdblval=0.0, TYPE_DOUBLE, 0}, \
{"ntn-koffset", CONFIG_HLP_NTN_KOFFSET, 0, .uptr=&(nrUE_params.ntn_koffset), .defuintval=0, TYPE_UINT, 0}, \
{"ntn-ta-common", CONFIG_HLP_NTN_TA_COMMON, 0, .dblptr=&(nrUE_params.ntn_ta_common), .defdblval=0.0, TYPE_DOUBLE, 0}, \
{"ntn-ta-commondrift", CONFIG_HLP_NTN_TA_COMMONDRIFT, 0, .dblptr=&(nrUE_params.ntn_ta_commondrift), .defdblval=0.0, TYPE_DOUBLE, 0}, \