diff --git a/103221-2/TS_103_221_02_Configuration.xsd b/103221-2/TS_103_221_02_Configuration.xsd
new file mode 100644
index 0000000000000000000000000000000000000000..7416de4b0631a1e3f78926453a14a62a5249b9e5
--- /dev/null
+++ b/103221-2/TS_103_221_02_Configuration.xsd
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="..." targetNamespace="..." xmlns:etsi104000="uri:etsi:li:104000:xsdns:v1" elementFormDefault="qualified" attributeFormDefault="unqualified">
+    <xs:import namespace= "uri:etsi:li:104000:xsdns:v1"/>
+    
+    <xs:complexType name="X2_X3ConfigurationDetails">
+        <xs:complexContent>
+            <xs:extension base="etsi104000:ConfigurationDetails">
+                <xs:sequence>
+                    <xs:element name="interfaceType" type="InterfaceType"/>
+                    <xs:element name="keepAliveDetails" type="X2X3KeepAliveDetails"/>
+                </xs:sequence>
+            </xs:extension>
+        </xs:complexContent>
+    </xs:complexType>
+    <xs:simpleType name="InterfaceType">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="X2"/>
+            <xs:enumeration value="X3"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:complexType name="X2X3KeepAliveDetails">
+        <xs:complexContent>      
+                <xs:sequence>
+                    <xs:element name="keepaliveEnabled" type="xs:boolean"/>
+                    <xs:element name="keepaliveTimeP1" type="KeepaliveTimeP1" minOccurs="0"/>
+                    <xs:element name="keepaliveTimeP2" type="KeepaliveTimeP2" minOccurs="0"/>
+                </xs:sequence>
+        </xs:complexContent>
+    </xs:complexType>
+  	<xs:simpleType name="KeepaliveTimeP1">
+		<xs:restriction base="xs:integer">
+			<xs:minInclusive value="1"/>
+		</xs:restriction>
+	</xs:simpleType>
+    	<xs:simpleType name="KeepaliveTimeP2">
+		<xs:restriction base="xs:integer">
+			<xs:minInclusive value="1"/>
+		</xs:restriction>
+	</xs:simpleType>
+ </xs:schema>   
\ No newline at end of file