diff --git a/33128/r18/urn_3GPP_ns_li_3GPPX1Extensions.xsd b/33128/r18/urn_3GPP_ns_li_3GPPX1Extensions.xsd
index a81b59f54e76e0a88df3714eba02e724a227c12c..a27ace4a6b34136b6664416d21a7f5a3dfa85c94 100644
--- a/33128/r18/urn_3GPP_ns_li_3GPPX1Extensions.xsd
+++ b/33128/r18/urn_3GPP_ns_li_3GPPX1Extensions.xsd
@@ -404,4 +404,448 @@
     </xs:sequence>
   </xs:complexType>
 
+<?xml version="1.0" encoding="utf-8"?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
+           xmlns="urn:3GPP:ns:li:3GPPX1Extensions:r18:v3"
+           xmlns:common="http://uri.etsi.org/03280/common/2017/07"
+           xmlns:x1="http://uri.etsi.org/03221/X1/2017/10"
+           targetNamespace="urn:3GPP:ns:li:3GPPX1Extensions:r18:v3"
+           elementFormDefault="qualified">
+
+  <xs:import namespace="http://uri.etsi.org/03280/common/2017/07"/>
+	<xs:import namespace="http://uri.etsi.org/03221/X1/2017/10"/>
+
+  <xs:element name="X1Extensions" type="X1Extension"></xs:element>
+
+  <xs:element name="PTCLIX1TargetIdentifierExtensions" type="PTCLIX1TargetIdentifierExtensions"></xs:element>
+  <xs:complexType name="PTCLIX1TargetIdentifierExtensions">
+    <xs:sequence>
+      <xs:element name="PTCLIX1TargetIdentifier" type="PTCLIX1TargetIdentifier" minOccurs="1" maxOccurs="unbounded"></xs:element>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:complexType name="PTCLIX1TargetIdentifier">
+    <xs:choice>
+      <xs:element name="MCPTTID" type="MCPTTID"></xs:element>
+      <xs:element name="InstanceIdentifierURN" type="InstanceIdentifierURN"></xs:element>
+      <xs:element name="PTCChatGroupID" type="PTCChatGroupID"></xs:element>
+    </xs:choice>
+  </xs:complexType>
+
+  <xs:simpleType name="MCPTTID">
+    <xs:restriction base="xs:anyURI"></xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="InstanceIdentifierURN">
+    <xs:restriction base="xs:anyURI"></xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="PTCChatGroupID">
+    <xs:restriction base="xs:anyURI"></xs:restriction>
+  </xs:simpleType>
+
+  <xs:element name="ECX1TargetIdentifierExtensions" type="ECX1TargetIdentifierExtensions"></xs:element>
+  <xs:complexType name="ECX1TargetIdentifierExtensions">
+    <xs:sequence>
+      <xs:element name="EECID" type="EECID"></xs:element>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:simpleType name="EECID">
+    <xs:restriction base="xs:string"/>
+  </xs:simpleType>
+
+  <xs:element name="UPFLIT3TargetIdentifierExtensions" type="UPFLIT3TargetIdentifierExtensions"></xs:element>
+  <xs:complexType name="UPFLIT3TargetIdentifierExtensions">
+    <xs:sequence>
+      <xs:element name="UPFLIT3TargetIdentifier" type="UPFLIT3TargetIdentifier" minOccurs="1" maxOccurs="unbounded"></xs:element>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:complexType name="UPFLIT3TargetIdentifier">
+    <xs:choice>
+      <xs:element name="FSEID" type="FSEID"></xs:element>
+      <xs:element name="PDRID" type="xs:unsignedInt"></xs:element>
+      <xs:element name="QERID" type="xs:unsignedInt"></xs:element>
+      <xs:element name="NetworkInstance" type="xs:hexBinary"></xs:element>
+      <xs:element name="GTPTunnelDirection" type="GTPTunnelDirection"></xs:element>
+      <xs:element name="FTEID" type="FTEID"></xs:element>
+    </xs:choice>
+  </xs:complexType>
+
+  <xs:complexType name="FSEID">
+    <xs:sequence>
+      <xs:element name="SEID" type="xs:unsignedLong"></xs:element>
+      <xs:element name="IPv4Address" type="common:IPv4Address" minOccurs="0"></xs:element>
+      <xs:element name="IPv6Address" type="common:IPv6Address" minOccurs="0"></xs:element>
+   </xs:sequence>
+  </xs:complexType>
+
+  <xs:complexType name="FTEID">
+    <xs:sequence>
+      <xs:element name="TEID" type="xs:unsignedInt"></xs:element>
+      <xs:element name="IPv4Address" type="common:IPv4Address" minOccurs="0"></xs:element>
+      <xs:element name="IPv6Address" type="common:IPv6Address" minOccurs="0"></xs:element>
+   </xs:sequence>
+  </xs:complexType>
+
+  <xs:simpleType name="GTPTunnelDirection">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="Outbound"></xs:enumeration>
+      <xs:enumeration value="Inbound"></xs:enumeration>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:element name="IdentifierAssociationExtensions" type="IdentifierAssociationExtensions" ></xs:element>
+
+  <xs:complexType name="X1Extension">
+    <xs:choice>
+      <xs:element name="LALSLILCSTargetProvisioning" type="LALSLILCSTargetProvisioningExtensions"></xs:element>
+      <xs:element name="LALSLTFProvisioning" type="LALSLTFProvisioningExtensions"></xs:element>
+      <xs:element name="HeaderReporting" type="PDHRReportingExtensions"></xs:element>
+      <xs:element name="SMSFExtensions" type="SMSFProvisioningExtensions"></xs:element>
+      <xs:element name="IdentifierAssociation" type="IdentifierAssociationExtensions"></xs:element>
+      <xs:element name="SDP" type="SDP"></xs:element>
+      <xs:element name="STIRSHAKENProvisioning" type="STIRSHAKENTargetProvisioningExtensions"></xs:element>
+      <xs:element name="LocationOnlyProvisioning" type="LocationOnlyProvisioningExtensions"></xs:element>
+    </xs:choice>
+  </xs:complexType>
+
+  <xs:complexType name="LALSLILCSTargetProvisioningExtensions">
+    <xs:sequence>
+      <xs:element name="PositioningServiceType" type="PositioningServiceType"></xs:element>
+      <xs:element name="PositioningPeriodicity" type="PositioningPeriodicity" minOccurs="0"></xs:element>
+      <xs:element name="PositioningParameters" type="PositioningParameters" minOccurs="0"></xs:element>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:simpleType name="PositioningServiceType">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="Immediate"></xs:enumeration>
+      <xs:enumeration value="Periodic"></xs:enumeration>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="PositioningPeriodicity">
+    <xs:restriction base="xs:nonNegativeInteger">
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:complexType name="PositioningParameters">
+    <xs:sequence>
+      <xs:element name="RequestedLocationType" type="RequestedLocationType" minOccurs="0"></xs:element>
+      <xs:element name="RequestedResponseType" type="RequestedResponseType" minOccurs="0"></xs:element>
+      <xs:element name="MaxLocationAge" type="xs:nonNegativeInteger" minOccurs="0"></xs:element>
+      <xs:element name="ResponseTimingRequired" type="ResponseTimingRequired" minOccurs="0"></xs:element>
+      <xs:element name="ResponseTimer" type="xs:nonNegativeInteger" minOccurs="0"></xs:element>
+      <xs:element name="HorizontalAccuracy" type="NumberWithQOSClass" minOccurs="0"></xs:element>
+      <xs:element name="AltitudeAccuracy" type="NumberWithQOSClass" minOccurs="0"></xs:element>
+      <xs:element name="MotionStateRequest" type="EmptyElement" minOccurs="0"></xs:element>
+    </xs:sequence>
+  </xs:complexType>
+  <xs:simpleType name="RequestedLocationType">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="CURRENT"></xs:enumeration>
+      <xs:enumeration value="CURRENT_OR_LAST"></xs:enumeration>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="RequestedResponseType">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="SYNC"></xs:enumeration>
+      <xs:enumeration value="ASYNC"></xs:enumeration>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="ResponseTimingRequired">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="NO_DELAY"></xs:enumeration>
+      <xs:enumeration value="LOW_DELAY"></xs:enumeration>
+      <xs:enumeration value="DELAY_TOL"></xs:enumeration>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:complexType name="NumberWithQOSClass">
+    <xs:simpleContent>
+      <xs:extension base="xs:nonNegativeInteger">
+        <xs:attribute name="qos_class" type="QOSClass"></xs:attribute>
+      </xs:extension>
+    </xs:simpleContent>
+  </xs:complexType>
+
+  <xs:simpleType name="QOSClass">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="ASSURED"></xs:enumeration>
+      <xs:enumeration value="BEST_EFFORT"></xs:enumeration>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="EmptyElement">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value=""></xs:enumeration>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:complexType name="LALSLTFProvisioningExtensions">
+    <xs:sequence>
+      <xs:element name="LILCSClientAddress" type="LILCSClientIPAddress"></xs:element>
+      <xs:element name="PositioningParameters" type="PositioningParameters" minOccurs="0"></xs:element>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:complexType name="LILCSClientIPAddress">
+    <xs:sequence>
+      <xs:choice>
+        <xs:element name="IPv4Address" type="common:IPv4Address"/>
+        <xs:element name="IPv6Address" type="common:IPv6Address"/>
+      </xs:choice>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:complexType name="PDHRReportingExtensions">
+    <xs:sequence>
+      <xs:element name="PDHType" type="PDHType"></xs:element>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:complexType name="PDHType">
+    <xs:choice>
+      <xs:element name="PDHR" type="EmptyElement"></xs:element>
+      <xs:element name="PDSR" type="PDSRParameters"></xs:element>
+    </xs:choice>
+  </xs:complexType>
+
+  <xs:complexType name="PDSRParameters">
+    <xs:sequence>
+      <xs:element name="PDSRTriggerType" type="PDSRTriggerType" minOccurs="1" maxOccurs="unbounded"></xs:element>
+      <xs:element name="useSessionTriggers" type="xs:boolean" minOccurs="0" ></xs:element>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:complexType name="PDSRTriggerType">
+    <xs:choice>
+      <xs:element name="TimerExpiry" type="TimerExpiryInSeconds"></xs:element>
+      <xs:element name="PacketCount" type="xs:nonNegativeInteger"></xs:element>
+      <xs:element name="ByteCount" type="xs:nonNegativeInteger"></xs:element>
+    </xs:choice>
+  </xs:complexType>
+
+  <xs:complexType name="SMSFProvisioningExtensions">
+    <xs:sequence>
+      <xs:element name="TruncateTPUserData" type="EmptyElement" minOccurs="0"></xs:element>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:simpleType name="TimerExpiryInSeconds">
+    <xs:restriction base="xs:nonNegativeInteger">
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:complexType name="IdentifierAssociationExtensions">
+    <xs:sequence>
+      <xs:element name="IdentifierAssociationEventsGenerated" type="IdentifierAssociationEventsGenerated"></xs:element>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:simpleType name="IdentifierAssociationEventsGenerated">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="IdentifierAssociation"></xs:enumeration>
+      <xs:enumeration value="All"></xs:enumeration>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:element name="IdentityAssociationTargetIdentifier" type="EmptyElement"></xs:element>
+
+  <xs:element name="AKMATargetIdentifier" type="AKMATargetIdentifier"></xs:element>
+  <xs:complexType name="AKMATargetIdentifier">
+    <xs:choice>
+      <xs:element name="AKID" type="common:NAI"></xs:element>
+    </xs:choice>
+  </xs:complexType>
+
+  <xs:element name="HR" type="EmptyElement"></xs:element>
+  <xs:element name="IMSSignaling" type="EmptyElement"></xs:element>
+
+  <xs:element name="HRLIT1TargetIdentifierExtensions" type="HRLIT1TargetIdentifierExtensions"></xs:element>
+
+  <xs:complexType name="HRLIT1TargetIdentifierExtensions">
+    <xs:sequence>
+      <xs:element name="HRLIT1TargetIdentifier" type="HRLIT1TargetIdentifier" minOccurs="1" maxOccurs="unbounded"></xs:element>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:complexType name="HRLIT1TargetIdentifier">
+    <xs:choice>
+      <xs:element name="PDUSessionID" type="PDUSessionID"></xs:element>
+      <xs:element name="BearerID" type="BearerID"></xs:element>
+      <xs:element name="IMSVoiceMedia" type="EmptyElement"></xs:element>
+    </xs:choice>
+  </xs:complexType>
+
+  <xs:simpleType name="PDUSessionID">
+    <xs:restriction base="xs:unsignedInt">
+      <xs:minInclusive value="0"/>
+      <xs:maxInclusive value="255"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="BearerID">
+    <xs:restriction base="xs:unsignedInt">
+      <xs:minInclusive value="0"/>
+      <xs:maxInclusive value="255"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:element name="RCSTargetIdentifierExtensions" type="RCSTargetIdentifierExtensions"></xs:element>
+
+  <xs:complexType name="RCSTargetIdentifierExtensions">
+    <xs:sequence>
+      <xs:element name="RCSTargetIdentifier" type="RCSTargetIdentifier" minOccurs="1" maxOccurs="unbounded"></xs:element>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:complexType name="RCSTargetIdentifier">
+    <xs:choice>
+      <xs:element name="RCSContentURI" type="RCSContentURI"></xs:element>
+    </xs:choice>
+  </xs:complexType>
+
+  <xs:simpleType name="RCSContentURI">
+    <xs:restriction base="xs:anyURI"></xs:restriction>
+  </xs:simpleType>
+
+  <xs:element name="IMST3TargetIdentifierExtensions" type="IMST3TargetIdentifierExtensions"></xs:element>
+
+  <xs:complexType name="IMST3TargetIdentifierExtensions">
+    <xs:sequence>
+      <xs:element name="IMST3TargetIdentifierExtension" type="IMST3TargetIdentifierExtension" minOccurs="1" maxOccurs="unbounded"></xs:element>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:complexType name="IMST3TargetIdentifierExtension">
+    <xs:choice>
+      <xs:element name="H248ContextID" type="H248ContextID"></xs:element>
+      <xs:element name="PayloadDirectionAssignment" type="PayloadDirectionAssignment"></xs:element>
+      <xs:element name="TriggerScope" type="TriggerScope"></xs:element>
+    </xs:choice>
+  </xs:complexType>
+
+ <xs:simpleType name="PayloadDirectionAssignment">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="ToTarget"></xs:enumeration>
+      <xs:enumeration value="FromTarget"></xs:enumeration>
+      <xs:enumeration value="NotDetermined"></xs:enumeration>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="H248ContextID">
+    <xs:restriction base="xs:integer">
+      <xs:minInclusive value="1"></xs:minInclusive>
+      <xs:maxInclusive value="4294967293"></xs:maxInclusive>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="TriggerScope">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="Unidirectional"></xs:enumeration>
+      <xs:enumeration value="Bidirectional"></xs:enumeration>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:complexType name="SDP">
+    <xs:sequence>
+      <xs:element name="SDPData" type="SDPData" minOccurs="1" maxOccurs="unbounded"></xs:element>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:complexType name="SDPData">
+    <xs:choice>
+      <xs:element name="LocalSDP" type="SDPInfo"></xs:element>
+      <xs:element name="RemoteSDP" type="SDPInfo"></xs:element>
+    </xs:choice>
+  </xs:complexType>
+
+  <xs:simpleType name="SDPInfo">
+    <xs:restriction base="xs:string">
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:complexType name="STIRSHAKENTargetProvisioningExtensions">
+    <xs:sequence>
+      <xs:element name="ReportDiversionPASSporTInfo" type="ReportDiversionPASSporTInfo"></xs:element>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:simpleType name="ReportDiversionPASSporTInfo">
+    <xs:restriction base="xs:boolean">
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:complexType name="LocationOnlyProvisioningExtensions">
+    <xs:sequence>
+      <xs:element name="LocationOnly" type="EmptyElement" minOccurs="0"></xs:element>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:element name="DelegatedTaskStatus" type="DelegatedTaskStatus"></xs:element>
+    
+  <xs:complexType name="DelegatedTaskStatus">
+      <xs:sequence>
+          <xs:element name="ListOfDelegatedTasks" type="ListOfDelegatedTasks"></xs:element>
+      </xs:sequence>
+  </xs:complexType>
+
+  <xs:complexType name="ListOfDelegatedTasks">
+      <xs:sequence>
+          <xs:element name="DelegatedTask" type="DelegatedTask" minOccurs="0" maxOccurs="unbounded"></xs:element>
+      </xs:sequence>
+  </xs:complexType>
+    
+  <xs:complexType name="DelegatedTask">
+    <xs:sequence>
+        <xs:element name="NEID" type="x1:NeIdentifier"/>
+        <xs:element name="TaskDetails" type="x1:TaskDetails"/>
+        <xs:element name="TaskStatus" type="x1:TaskStatus" minOccurs="0"/>
+        <xs:element name="LastTaskStatusTime" type="common:QualifiedMicrosecondDateTime" minOccurs="0"/>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:complexType name="RemotePOIFaultDetails">
+    <xs:sequence>
+        <xs:element name="RemotePOIError" type="RemotePOIErrors"/>
+        <xs:element name="NEID" type="x1:NeIdentifier"/>
+        <xs:element name="POIType" type="POITypes"/>
+        <xs:element name="TaskDetails" type="x1:TaskDetails"/>
+        <xs:element name="TaskStatus" type="x1:TaskStatus" minOccurs="0"/>
+        <xs:element name="LastTaskStatusTime" type="common:QualifiedMicrosecondDateTime" minOccurs="0"/>
+        <xs:element name="FailedTriggeringMessage" type="x1:RequestMessageType" minOccurs="0"/>
+        <xs:element name="ErrorDetectionTime" type="common:QualifiedMicrosecondDateTime"/>
+        <xs:element name="POIErrorCode" type="POIErrorCodes" minOccurs="0"/>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:complexType name="RemotePOIErrors">
+    <xs:sequence>
+        <xs:element name="errorCode" type="xs:integer"/>
+        <xs:element name="errorDescription" type="xs:string"/>
+        </xs:sequence>
+  </xs:complexType>
+
+  <xs:simpleType name="POITypes">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="IRI-POI"></xs:enumeration>
+      <xs:enumeration value="CC-POI"></xs:enumeration>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:complexType name="POIErrorCodes">
+    <xs:choice>
+      <xs:element name="TopLevelError" type="x1:TopLevelErrorResponse"></xs:element>
+      <xs:element name="ErrorInformation" type="x1:ErrorInformation"></xs:element>
+    </xs:choice>
+  </xs:complexType>
+
+</xs:schema>
+
+
 </xs:schema>