diff --git a/v3_28_0/CDT-AE-v3_28_0.xsd b/v3_28_0/CDT-AE-v3_28_0.xsd
index 11b78efd00483b036c55ecb439445cd5c7b2a677..d289e61113394a2ae7ec8117f7399066416cf3f8 100644
--- a/v3_28_0/CDT-AE-v3_28_0.xsd
+++ b/v3_28_0/CDT-AE-v3_28_0.xsd
@@ -115,8 +115,6 @@ 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="Trigger-Recipient-ID" type="m2m:triggerRecipientID" minOccurs="0" />
-						<xs:element name="triggerReferenceNumber" type="xs:unsignedInt" minOccurs="0" />
 
 						<!-- Child Resources -->
 						<xs:choice minOccurs="0" maxOccurs="1">