diff --git a/subsys/bluetooth/controller/Kconfig b/subsys/bluetooth/controller/Kconfig
index 0bd1b651ee2..8ff47ab63b8 100644
--- a/subsys/bluetooth/controller/Kconfig
+++ b/subsys/bluetooth/controller/Kconfig
@@ -136,6 +136,8 @@ config BLUETOOTH_CONTROLLER_PHY
 	  Enable support for Bluetooth 5.0 PHY Update Procedure in the
 	  Controller.
 
+endif # BLUETOOTH_CONN
+
 config BLUETOOTH_CONTROLLER_CHAN_SEL_2
 	bool "Channel Selection Algorithm #2"
 	default y
@@ -143,7 +145,14 @@ config BLUETOOTH_CONTROLLER_CHAN_SEL_2
 	  Enable support for Bluetooth 5.0 LE Channel Selection Algorithm #2 in
 	  the Controller.
 
-endif # BLUETOOTH_CONN
+config BLUETOOTH_CONTROLLER_ADV_EXT
+	bool "LE Advertising Extensions"
+	select BLUETOOTH_CONTROLLER_SCAN_REQ_NOTIFY
+	select BLUETOOTH_CONTROLLER_CHAN_SEL_2
+	default y
+	help
+	  Enable support for Bluetooth 5.0 LE Advertising Extensions in the
+	  Controller.
 
 config BLUETOOTH_CONTROLLER_ADVANCED_FEATURES
 	bool "Show advanced features"
diff --git a/subsys/bluetooth/controller/ll_sw/pdu.h b/subsys/bluetooth/controller/ll_sw/pdu.h
index 96e04e0e082..af2d52949b9 100644
--- a/subsys/bluetooth/controller/ll_sw/pdu.h
+++ b/subsys/bluetooth/controller/ll_sw/pdu.h
@@ -53,6 +53,71 @@ struct pdu_adv_payload_connect_ind {
 	} __packed lldata;
 } __packed;
 
+#if defined(CONFIG_BLUETOOTH_CONTROLLER_ADV_EXT)
+struct pdu_adv_payload_com_ext_adv {
+	u8_t ext_hdr_len:6;
+	u8_t adv_mode:2;
+	u8_t ext_hdr_adi_adv_data[254];
+} __packed;
+
+enum ext_adv_mode {
+	EXT_ADV_MODE_NON_CONN_NON_SCAN = 0x00,
+	EXT_ADV_MODE_CONN_NON_SCAN = 0x01,
+	EXT_ADV_MODE_NON_CONN_SCAN = 0x02,
+};
+
+struct ext_adv_hdr {
+	u8_t adv_addr:1;
+	u8_t tgt_addr:1;
+	u8_t rfu0:1;
+	u8_t adi:1;
+	u8_t aux_ptr:1;
+	u8_t sync_info:1;
+	u8_t tx_pwr:1;
+	u8_t rfu1:1;
+} __packed;
+
+struct ext_adv_adi {
+	u16_t did:12;
+	u16_t sid:4;
+} __packed;
+
+struct ext_adv_aux_ptr {
+	u8_t  chan_idx:6;
+	u8_t  ca:1;
+	u8_t  offs_units:1;
+	u16_t offs:13;
+	u16_t phy:3;
+} __packed;
+
+enum ext_adv_aux_ptr_ca {
+	EXT_ADV_AUX_PTR_CA_500_PPM = 0x00,
+	EXT_ADV_AUX_PTR_CA_50_PPM  = 0x01,
+};
+
+enum ext_adv_offs_units {
+	EXT_ADV_AUX_PTR_OFFS_UNITS_30  = 0x00,
+	EXT_ADV_AUX_PTR_OFFS_UNITS_300 = 0x01,
+};
+
+enum ext_adv_aux_phy {
+	EXT_ADV_AUX_PHY_LE_1M  = 0x00,
+	EXT_ADV_AUX_PHY_LE_2M  = 0x01,
+	EXT_ADV_AUX_PHY_LE_COD = 0x02,
+};
+
+struct ext_adv_sync_info {
+	u16_t sync_pkt_offs:13;
+	u16_t offs_units:1;
+	u16_t rfu:2;
+	u16_t interval;
+	u8_t  sca_chm[5];
+	u32_t aa;
+	u8_t  crc_init[3];
+	u16_t evt_cntr;
+} __packed;
+#endif /* CONFIG_BLUETOOTH_CONTROLLER_ADV_EXT */
+
 enum pdu_adv_type {
 	PDU_ADV_TYPE_ADV_IND = 0x00,
 	PDU_ADV_TYPE_DIRECT_IND = 0x01,
@@ -86,6 +151,10 @@ struct pdu_adv {
 		struct pdu_adv_payload_scan_req scan_req;
 		struct pdu_adv_payload_scan_rsp scan_rsp;
 		struct pdu_adv_payload_connect_ind connect_ind;
+
+#if defined(CONFIG_BLUETOOTH_CONTROLLER_ADV_EXT)
+		struct pdu_adv_payload_com_ext_adv adv_ext_ind;
+#endif /* CONFIG_BLUETOOTH_CONTROLLER_ADV_EXT */
 	} __packed payload;
 } __packed;
 
diff --git a/tests/bluetooth/init/prj_controller_4_0.conf b/tests/bluetooth/init/prj_controller_4_0.conf
index f68027548d5..2313168587a 100644
--- a/tests/bluetooth/init/prj_controller_4_0.conf
+++ b/tests/bluetooth/init/prj_controller_4_0.conf
@@ -9,6 +9,7 @@ CONFIG_BLUETOOTH_CONTROLLER_LE_PING=n
 CONFIG_BLUETOOTH_CONTROLLER_DATA_LENGTH=n
 CONFIG_BLUETOOTH_CONTROLLER_PHY=n
 CONFIG_BLUETOOTH_CONTROLLER_CHAN_SEL_2=n
+CONFIG_BLUETOOTH_CONTROLLER_ADV_EXT=n
 CONFIG_BLUETOOTH_CONTROLLER_TIFS_HW=y
 CONFIG_BLUETOOTH_CONTROLLER_FAST_ENC=n
 CONFIG_BLUETOOTH_CONTROLLER_CONN_RSSI=n
diff --git a/tests/bluetooth/init/prj_controller_dbg.conf b/tests/bluetooth/init/prj_controller_dbg.conf
index 52405b49ff4..631a6c6d653 100644
--- a/tests/bluetooth/init/prj_controller_dbg.conf
+++ b/tests/bluetooth/init/prj_controller_dbg.conf
@@ -12,6 +12,7 @@ CONFIG_BLUETOOTH_CONTROLLER_PHY_2M=y
 CONFIG_BLUETOOTH_CONTROLLER_PHY_2M_NRF=y
 CONFIG_BLUETOOTH_CONTROLLER_PHY_CODED=y
 CONFIG_BLUETOOTH_CONTROLLER_CHAN_SEL_2=y
+CONFIG_BLUETOOTH_CONTROLLER_ADV_EXT=y
 CONFIG_BLUETOOTH_CONTROLLER_TIFS_HW=n
 CONFIG_BLUETOOTH_CONTROLLER_FAST_ENC=y
 CONFIG_BLUETOOTH_CONTROLLER_CONN_RSSI=y
diff --git a/tests/bluetooth/init/prj_controller_tiny.conf b/tests/bluetooth/init/prj_controller_tiny.conf
index 6314d55261f..e4893973d39 100644
--- a/tests/bluetooth/init/prj_controller_tiny.conf
+++ b/tests/bluetooth/init/prj_controller_tiny.conf
@@ -9,6 +9,7 @@ CONFIG_BLUETOOTH_CONTROLLER_LE_PING=n
 CONFIG_BLUETOOTH_CONTROLLER_DATA_LENGTH=n
 CONFIG_BLUETOOTH_CONTROLLER_PHY=n
 CONFIG_BLUETOOTH_CONTROLLER_CHAN_SEL_2=n
+CONFIG_BLUETOOTH_CONTROLLER_ADV_EXT=n
 CONFIG_BLUETOOTH_CONTROLLER_TIFS_HW=y
 CONFIG_BLUETOOTH_CONTROLLER_FAST_ENC=n
 CONFIG_BLUETOOTH_CONTROLLER_CONN_RSSI=n