diff --git a/CDT-AE.xsd b/CDT-AE.xsd
index be38d6595ef9b133e4ae1eead562a6db25435b91..4371095ce68d954e6e993378bae8221971f5fefd 100644
--- a/CDT-AE.xsd
+++ b/CDT-AE.xsd
@@ -71,6 +71,9 @@ oneM2M EXPRESSLY ADVISES ANY AND ALL USE OF OR RELIANCE UPON THIS INFORMATION PR
 						<xs:element name="triggerEnable" type="xs:boolean" minOccurs="0" />
 						<xs:element name="activityPatternElements" type="m2m:activityPatternElements" minOccurs="0" />
 						<xs:element name="enableTimeCompensation" type="xs:boolean" minOccurs="0" />
+						<xs:element name="Trigger-Recipient-ID" type="m2m:triggerRecipientID" minOccurs="0" />
+						<xs:element name="triggerReferenceNumber" type="xs:unsignedInt" minOccurs="0" />
+						<xs:element name="externalGroupID" type="m2m:externalID" minOccurs="0" />
 
 						<!-- Child Resources -->
 						<xs:choice minOccurs="0" maxOccurs="1">
@@ -126,6 +129,7 @@ oneM2M EXPRESSLY ADVISES ANY AND ALL USE OF OR RELIANCE UPON THIS INFORMATION PR
 						<xs:element name="sessionCapabilities" type="m2m:sessionCapabilities" minOccurs="0" />
 						<xs:element name="triggerEnable" type="xs:boolean" minOccurs="0" />
 						<xs:element name="activityPatternElements" type="m2m:activityPatternElements" minOccurs="0" />
+						<xs:element name="externalGroupID" type="m2m:externalID" minOccurs="0" />
 
 						<!-- Child Resources -->
 						<xs:choice minOccurs="0" maxOccurs="1">