diff --git a/subsys/bluetooth/controller/CMakeLists.txt b/subsys/bluetooth/controller/CMakeLists.txt
index 39f013b2696..f4ae6c044c5 100644
--- a/subsys/bluetooth/controller/CMakeLists.txt
+++ b/subsys/bluetooth/controller/CMakeLists.txt
@@ -43,6 +43,10 @@ if(CONFIG_BT_LL_SW_SPLIT)
       CONFIG_BT_CTLR_ADV_EXT
       ll_sw/ull_scan_aux.c
       )
+    zephyr_library_sources_ifdef(
+      CONFIG_BT_CTLR_SCAN_PERIODIC
+      ll_sw/ull_scan_sync.c
+      )
   endif()
   if(CONFIG_BT_CONN)
     zephyr_library_sources(
@@ -64,7 +68,9 @@ if(CONFIG_BT_LL_SW_SPLIT)
       )
     endif()
   endif()
-  if(CONFIG_BT_CONN OR CONFIG_BT_CTLR_ADV_PERIODIC)
+  if(CONFIG_BT_CONN OR
+     CONFIG_BT_CTLR_ADV_PERIODIC OR
+     CONFIG_BT_CTLR_SCAN_PERIODIC)
     zephyr_library_sources(
       ll_sw/ull_chan.c
       ll_sw/lll_chan.c
diff --git a/subsys/bluetooth/controller/Kconfig b/subsys/bluetooth/controller/Kconfig
index a834a47d594..cf84687094c 100644
--- a/subsys/bluetooth/controller/Kconfig
+++ b/subsys/bluetooth/controller/Kconfig
@@ -45,6 +45,10 @@ config BT_CTLR_ADV_PERIODIC_SUPPORT
 	depends on BT_CTLR_ADV_EXT_SUPPORT
 	bool
 
+config BT_CTLR_SCAN_PERIODIC_SUPPORT
+	depends on BT_CTLR_ADV_EXT_SUPPORT
+	bool
+
 config BT_CTLR_CHAN_SEL_2_SUPPORT
 	bool
 
@@ -371,7 +375,7 @@ config BT_CTLR_PHY_CODED
 
 config BT_CTLR_CHAN_SEL_2
 	bool "Channel Selection Algorithm #2"
-	depends on (BT_CONN || BT_CTLR_ADV_PERIODIC) && BT_CTLR_CHAN_SEL_2_SUPPORT
+	depends on (BT_CONN || BT_CTLR_ADV_PERIODIC || BT_CTLR_SCAN_PERIODIC) && BT_CTLR_CHAN_SEL_2_SUPPORT
 	default y
 	help
 	  Enable support for Bluetooth 5.0 LE Channel Selection Algorithm #2 in
@@ -409,6 +413,15 @@ config BT_CTLR_ADV_PERIODIC
 	  Enable support for Bluetooth 5.0 LE Periodic Advertising in the
 	  Controller.
 
+config BT_CTLR_SCAN_PERIODIC
+	bool "LE Periodic Advertising Sync"
+	depends on BT_OBSERVER && BT_CTLR_SCAN_PERIODIC_SUPPORT
+	select BT_CTLR_CHAN_SEL_2
+	default y if BT_PER_ADV_SYNC
+	help
+	  Enable support for Bluetooth 5.0 LE Periodic Advertising Sync in the
+	  Controller.
+
 config BT_CTLR_ADV_DATA_LEN_MAX
 	int "Maximum Advertising Data Length"
 	range 31 1650
diff --git a/subsys/bluetooth/controller/Kconfig.ll_sw_split b/subsys/bluetooth/controller/Kconfig.ll_sw_split
index cbd6b525868..f9f795f1c69 100644
--- a/subsys/bluetooth/controller/Kconfig.ll_sw_split
+++ b/subsys/bluetooth/controller/Kconfig.ll_sw_split
@@ -28,6 +28,7 @@ config BT_LLL_VENDOR_NORDIC
 					     BT_CTLR_PHY_CODED_SUPPORT
 	select BT_CTLR_ADV_EXT_SUPPORT
 	select BT_CTLR_ADV_PERIODIC_SUPPORT
+	select BT_CTLR_SCAN_PERIODIC_SUPPORT
 	select BT_CTLR_CHAN_SEL_2_SUPPORT
 	select BT_CTLR_MIN_USED_CHAN_SUPPORT
 	select BT_CTLR_DTM_HCI_SUPPORT
diff --git a/subsys/bluetooth/controller/include/ll.h b/subsys/bluetooth/controller/include/ll.h
index 87d804dc362..40a8a24fed2 100644
--- a/subsys/bluetooth/controller/include/ll.h
+++ b/subsys/bluetooth/controller/include/ll.h
@@ -94,9 +94,21 @@ uint8_t ll_adv_enable(uint8_t handle, uint8_t enable,
 uint8_t ll_adv_enable(uint8_t enable);
 #endif /* !CONFIG_BT_CTLR_ADV_EXT || !CONFIG_BT_HCI_MESH_EXT */
 
+#if defined(CONFIG_BT_CTLR_ADV_EXT)
 uint8_t ll_scan_params_set(uint8_t type, uint16_t interval, uint16_t window,
 			uint8_t own_addr_type, uint8_t filter_policy);
 uint8_t ll_scan_enable(uint8_t enable);
+uint8_t ll_scan_sync_create(uint8_t options, uint8_t sid, uint8_t adv_addr_type,
+			    uint8_t *adv_addr, uint16_t skip,
+			    uint16_t sync_timeout, uint8_t sync_cte_type);
+uint8_t ll_scan_sync_create_cancel(void);
+uint8_t ll_scan_sync_terminate(uint16_t handle);
+uint8_t ll_scan_sync_recv_enable(uint16_t handle, uint8_t enable);
+#else /* !CONFIG_BT_CTLR_ADV_EXT */
+uint8_t ll_scan_params_set(uint8_t type, uint16_t interval, uint16_t window,
+			uint8_t own_addr_type, uint8_t filter_policy);
+uint8_t ll_scan_enable(uint8_t enable);
+#endif /* !CONFIG_BT_CTLR_ADV_EXT */
 
 uint8_t ll_wl_size_get(void);
 uint8_t ll_wl_clear(void);
diff --git a/subsys/bluetooth/controller/include/ll_feat.h b/subsys/bluetooth/controller/include/ll_feat.h
index 43df351ac9c..7acaa0112b6 100644
--- a/subsys/bluetooth/controller/include/ll_feat.h
+++ b/subsys/bluetooth/controller/include/ll_feat.h
@@ -107,6 +107,13 @@
 #define LL_FEAT_BIT_EXT_ADV 0
 #endif /* !CONFIG_BT_CTLR_ADV_EXT */
 
+#if defined(CONFIG_BT_CTLR_ADV_PERIODIC) || \
+	defined(CONFIG_BT_CTLR_SCAN_PERIODIC)
+#define LL_FEAT_BIT_PER_ADV BIT64(BT_LE_FEAT_BIT_PER_ADV)
+#else /* !CONFIG_BT_CTLR_ADV_PERIODIC && !CONFIG_BT_CTLR_SCAN_PERIODIC */
+#define LL_FEAT_BIT_PER_ADV 0
+#endif /* !CONFIG_BT_CTLR_ADV_PERIODIC && !CONFIG_BT_CTLR_SCAN_PERIODIC */
+
 #define LL_FEAT_BIT_MASK         0x1FFFF
 #define LL_FEAT_BIT_MASK_VALID   0x1CF2F
 #define LL_FEAT_FILTER_OCTET0    0x1FF00
@@ -123,5 +130,6 @@
 				  LL_FEAT_BIT_SMI_RX | \
 				  LL_FEAT_BIT_PHY_CODED | \
 				  LL_FEAT_BIT_EXT_ADV | \
+				  LL_FEAT_BIT_PER_ADV | \
 				  LL_FEAT_BIT_CHAN_SEL_2 | \
 				  LL_FEAT_BIT_MIN_USED_CHAN)
diff --git a/subsys/bluetooth/controller/ll_sw/ull_scan_sync.c b/subsys/bluetooth/controller/ll_sw/ull_scan_sync.c
new file mode 100644
index 00000000000..ca55a35305b
--- /dev/null
+++ b/subsys/bluetooth/controller/ll_sw/ull_scan_sync.c
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2020 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <stdint.h>
+
+#include <bluetooth/hci.h>
+
+uint8_t ll_scan_sync_create(uint8_t options, uint8_t sid, uint8_t adv_addr_type,
+			    uint8_t *adv_addr, uint16_t skip,
+			    uint16_t sync_timeout, uint8_t sync_cte_type)
+{
+	/* TODO: */
+	return BT_HCI_ERR_CMD_DISALLOWED;
+}
+
+uint8_t ll_scan_sync_create_cancel(void)
+{
+	/* TODO: */
+	return BT_HCI_ERR_CMD_DISALLOWED;
+}
+
+uint8_t ll_scan_sync_terminate(uint16_t handle)
+{
+	/* TODO: */
+	return BT_HCI_ERR_CMD_DISALLOWED;
+}
+
+uint8_t ll_scan_sync_recv_enable(uint16_t handle, uint8_t enable)
+{
+	/* TODO: */
+	return BT_HCI_ERR_CMD_DISALLOWED;
+}
diff --git a/tests/bluetooth/bsim_bt/bsim_test_advx/prj.conf b/tests/bluetooth/bsim_bt/bsim_test_advx/prj.conf
index a27f7f63141..7e41bb2236b 100644
--- a/tests/bluetooth/bsim_bt/bsim_test_advx/prj.conf
+++ b/tests/bluetooth/bsim_bt/bsim_test_advx/prj.conf
@@ -5,6 +5,9 @@ CONFIG_BT_PERIPHERAL=y
 CONFIG_BT_OBSERVER=y
 CONFIG_BT_CENTRAL=y
 CONFIG_BT_EXT_ADV=y
+CONFIG_BT_PER_ADV=y
+CONFIG_BT_PER_ADV_SYNC=y
 
 CONFIG_BT_CTLR_ADV_EXT=y
 CONFIG_BT_CTLR_ADV_PERIODIC=y
+CONFIG_BT_CTLR_SCAN_PERIODIC=y