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UE NTN: Fix in case SIB19 periodicity is greater than 2 secs

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Raghavendra Dinavahi
2025-12-16 14:00:09 +01:00
parent 479be40b30
commit 6900edbf92
1 changed files with 3 additions and 0 deletions
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openair2/RRC/NR_UE/rrc_UE.c
+3
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@@ -259,6 +259,9 @@ static int get_ntn_timervalues(NR_UE_RRC_SI_INFO *SI_info, NR_NTN_Config_r17_t *
// TODO remove the hardoded values and define a better strategy to determine the time of expiry
// with real GEO/LEO/MEO SATs.
int expire_before_ms = ((val430 >= 120) ? 10000 : 2000);
// SIB19 periodicity even for LEO could be configured to be more than epoch time interval (2 secs)
if (expire_before_ms < 2 * sib19_periodicity_ms)
expire_before_ms = 2 * sib19_periodicity_ms;
int diff = *val430_ms - expire_before_ms;
int sib19_timer_ms = (diff > 0) ? diff : ((*val430_ms - sib19_periodicity_ms) > 0) ? (*val430_ms - sib19_periodicity_ms) : 0;
LOG_I(NR_RRC, "val430:%d s, T430:%d ms, sib19_timer:%d ms\n", val430, *val430_ms, sib19_timer_ms);