diff --git a/subsys/bluetooth/controller/ll_sw/lll.h b/subsys/bluetooth/controller/ll_sw/lll.h
index ea740f0dcc1..dc63a3ca72d 100644
--- a/subsys/bluetooth/controller/ll_sw/lll.h
+++ b/subsys/bluetooth/controller/ll_sw/lll.h
@@ -21,9 +21,10 @@
 #define EVENT_DONE_LINK_CNT 1
 #endif /* CONFIG_BT_CTLR_LOW_LAT_ULL */
 
-#define ADV_INT_UNIT_US  625U
-#define SCAN_INT_UNIT_US 625U
-#define CONN_INT_UNIT_US 1250U
+#define ADV_INT_UNIT_US      625U
+#define SCAN_INT_UNIT_US     625U
+#define CONN_INT_UNIT_US     1250U
+#define PERIODIC_INT_UNIT_US 1250U
 
 /* Intervals after which connection or sync establishment is considered lost */
 #define CONN_ESTAB_COUNTDOWN 6U
diff --git a/subsys/bluetooth/controller/ll_sw/nordic/lll/lll_sync_iso.c b/subsys/bluetooth/controller/ll_sw/nordic/lll/lll_sync_iso.c
index a2a0fa1f546..20cdbbf9d38 100644
--- a/subsys/bluetooth/controller/ll_sw/nordic/lll/lll_sync_iso.c
+++ b/subsys/bluetooth/controller/ll_sw/nordic/lll/lll_sync_iso.c
@@ -489,7 +489,7 @@ static void isr_rx(void *param)
 				HAL_TICKER_TICKS_TO_US(radio_tmr_start_get()) +
 				radio_tmr_aa_restore() - addr_us_get(lll->phy) +
 				(ceiling_fraction(lll->ptc_curr, lll->bn) *
-				 lll->iso_interval * CONN_INT_UNIT_US);
+				 lll->iso_interval * PERIODIC_INT_UNIT_US);
 			iso_meta->status = 0U;
 
 			lll->payload[bis_idx][payload_index] = node_rx;
diff --git a/subsys/bluetooth/controller/ll_sw/ull_adv.c b/subsys/bluetooth/controller/ll_sw/ull_adv.c
index 990e26ef100..9c5f9f28aa2 100644
--- a/subsys/bluetooth/controller/ll_sw/ull_adv.c
+++ b/subsys/bluetooth/controller/ll_sw/ull_adv.c
@@ -1422,11 +1422,18 @@ uint8_t ll_adv_enable(uint8_t enable)
 
 			/* Keep aux interval equal or higher than primary PDU
 			 * interval.
+			 * Use periodic interval units to represent the
+			 * periodic behavior of scheduling of AUX_ADV_IND PDUs
+			 * so that it is grouped with similar interval units
+			 * used for ACL Connections, Periodic Advertising and
+			 * BIG radio events.
 			 */
-			aux->interval = adv->interval +
-					(HAL_TICKER_TICKS_TO_US(
-						ULL_ADV_RANDOM_DELAY) /
-						ADV_INT_UNIT_US);
+			aux->interval =
+				ceiling_fraction(((uint64_t)adv->interval *
+						  ADV_INT_UNIT_US) +
+						 HAL_TICKER_TICKS_TO_US(
+							ULL_ADV_RANDOM_DELAY),
+						 PERIODIC_INT_UNIT_US);
 
 			ret = ull_adv_aux_start(aux, ticks_anchor_aux,
 						ticks_slot_overhead_aux);
diff --git a/subsys/bluetooth/controller/ll_sw/ull_adv_aux.c b/subsys/bluetooth/controller/ll_sw/ull_adv_aux.c
index f2d28d909dd..9888862ef5b 100644
--- a/subsys/bluetooth/controller/ll_sw/ull_adv_aux.c
+++ b/subsys/bluetooth/controller/ll_sw/ull_adv_aux.c
@@ -144,10 +144,20 @@ uint8_t ll_adv_aux_ad_data_set(uint8_t handle, uint8_t op, uint8_t frag_pref,
 			uint32_t ticks_anchor;
 			uint32_t ret;
 
-			aux->interval =	adv->interval +
-					(HAL_TICKER_TICKS_TO_US(
-						ULL_ADV_RANDOM_DELAY) /
-						ADV_INT_UNIT_US);
+			/* Keep aux interval equal or higher than primary PDU
+			 * interval.
+			 * Use periodic interval units to represent the
+			 * periodic behavior of scheduling of AUX_ADV_IND PDUs
+			 * so that it is grouped with similar interval units
+			 * used for ACL Connections, Periodic Advertising and
+			 * BIG radio events.
+			 */
+			aux->interval =
+				ceiling_fraction(((uint64_t)adv->interval *
+						  ADV_INT_UNIT_US) +
+						 HAL_TICKER_TICKS_TO_US(
+							ULL_ADV_RANDOM_DELAY),
+						 PERIODIC_INT_UNIT_US);
 
 			/* TODO: Find the anchor before the group of
 			 *       active Periodic Advertising events, so
@@ -1056,9 +1066,12 @@ uint32_t ull_adv_aux_start(struct ll_adv_aux_set *aux, uint32_t ticks_anchor,
 			   uint32_t ticks_slot_overhead)
 {
 	uint32_t volatile ret_cb;
+	uint32_t interval_us;
 	uint8_t aux_handle;
 	uint32_t ret;
 
+	interval_us = aux->interval * PERIODIC_INT_UNIT_US;
+
 	ull_hdr_init(&aux->ull);
 	aux_handle = ull_adv_aux_handle_get(aux);
 
@@ -1066,9 +1079,8 @@ uint32_t ull_adv_aux_start(struct ll_adv_aux_set *aux, uint32_t ticks_anchor,
 	ret = ticker_start(TICKER_INSTANCE_ID_CTLR, TICKER_USER_ID_THREAD,
 			   (TICKER_ID_ADV_AUX_BASE + aux_handle),
 			   ticks_anchor, 0,
-			   HAL_TICKER_US_TO_TICKS((uint64_t)aux->interval *
-						  ADV_INT_UNIT_US),
-			   TICKER_NULL_REMAINDER, TICKER_NULL_LAZY,
+			   HAL_TICKER_US_TO_TICKS(interval_us),
+			   HAL_TICKER_REMAINDER(interval_us), TICKER_NULL_LAZY,
 			   (aux->ull.ticks_slot + ticks_slot_overhead),
 			   ticker_cb, aux,
 			   ull_ticker_status_give, (void *)&ret_cb);
diff --git a/subsys/bluetooth/controller/ll_sw/ull_adv_iso.c b/subsys/bluetooth/controller/ll_sw/ull_adv_iso.c
index 4af727c34e5..92cc7677c4b 100644
--- a/subsys/bluetooth/controller/ll_sw/ull_adv_iso.c
+++ b/subsys/bluetooth/controller/ll_sw/ull_adv_iso.c
@@ -302,7 +302,7 @@ uint8_t ll_big_create(uint8_t big_handle, uint8_t adv_handle, uint8_t num_bis,
 	 * or integer multiple of SDU interval for unframed PDUs
 	 */
 	iso_interval_us = ((sdu_interval * lll_adv_iso->bn) /
-			   (bn * CONN_INT_UNIT_US)) * CONN_INT_UNIT_US;
+			   (bn * PERIODIC_INT_UNIT_US)) * PERIODIC_INT_UNIT_US;
 
 	/* Allocate next PDU */
 	err = ull_adv_sync_pdu_alloc(adv, ULL_ADV_PDU_EXTRA_DATA_ALLOC_IF_EXIST,
@@ -341,7 +341,7 @@ uint8_t ll_big_create(uint8_t big_handle, uint8_t adv_handle, uint8_t num_bis,
 	 */
 
 	big_info->iso_interval =
-		sys_cpu_to_le16(iso_interval_us / CONN_INT_UNIT_US);
+		sys_cpu_to_le16(iso_interval_us / PERIODIC_INT_UNIT_US);
 	big_info->num_bis = lll_adv_iso->num_bis;
 	big_info->nse = lll_adv_iso->nse;
 	big_info->bn = lll_adv_iso->bn;
diff --git a/subsys/bluetooth/controller/ll_sw/ull_adv_sync.c b/subsys/bluetooth/controller/ll_sw/ull_adv_sync.c
index 0c856b8606d..469b363ce97 100644
--- a/subsys/bluetooth/controller/ll_sw/ull_adv_sync.c
+++ b/subsys/bluetooth/controller/ll_sw/ull_adv_sync.c
@@ -853,7 +853,7 @@ uint32_t ull_adv_sync_start(struct ll_adv_set *adv,
 		ticks_slot_overhead = 0U;
 	}
 
-	interval_us = (uint32_t)sync->interval * CONN_INT_UNIT_US;
+	interval_us = (uint32_t)sync->interval * PERIODIC_INT_UNIT_US;
 
 	sync_handle = sync_handle_get(sync);
 
diff --git a/subsys/bluetooth/controller/ll_sw/ull_sync.c b/subsys/bluetooth/controller/ll_sw/ull_sync.c
index a2a9c0b18f2..7b0d67f27ff 100644
--- a/subsys/bluetooth/controller/ll_sw/ull_sync.c
+++ b/subsys/bluetooth/controller/ll_sw/ull_sync.c
@@ -619,7 +619,7 @@ void ull_sync_setup(struct ll_scan_set *scan, struct ll_scan_aux_set *aux,
 	lll->phy = aux->lll.phy;
 
 	interval = sys_le16_to_cpu(si->interval);
-	interval_us = interval * CONN_INT_UNIT_US;
+	interval_us = interval * PERIODIC_INT_UNIT_US;
 
 	/* Convert fromm 10ms units to interval units */
 	sync->timeout_reload = RADIO_SYNC_EVENTS((sync->timeout * 10U *
diff --git a/subsys/bluetooth/controller/ll_sw/ull_sync_iso.c b/subsys/bluetooth/controller/ll_sw/ull_sync_iso.c
index 93584dd8b22..652fa87c6ba 100644
--- a/subsys/bluetooth/controller/ll_sw/ull_sync_iso.c
+++ b/subsys/bluetooth/controller/ll_sw/ull_sync_iso.c
@@ -383,7 +383,7 @@ void ull_sync_iso_setup(struct ll_sync_iso_set *sync_iso,
 	}
 
 	lll->iso_interval = sys_le16_to_cpu(bi->iso_interval);
-	interval_us = lll->iso_interval * CONN_INT_UNIT_US;
+	interval_us = lll->iso_interval * PERIODIC_INT_UNIT_US;
 
 	sync_iso->timeout_reload =
 		RADIO_SYNC_EVENTS((sync_iso->timeout * 10U * USEC_PER_MSEC),