Update 33128/r17/urn_3GPP_ns_li_3GPPX1Extensions.xsd

  <xs:complexType name="IMST3TargetIdentifierExtension">

    <xs:choice>

      <xs:element name="H248ContextID" type="H248ContextID"></xs:element>

      <xs:element name="MediaDirectionForTarget" type="MediaDirectionForTarget"></xs:element>

      <xs:element name="InterceptionScope" type="InterceptionScope"></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="MediaDirectionForTarget">

 <xs:simpleType name="PayloadDirectionAssignment">

    <xs:restriction base="xs:string">

      <xs:enumeration value="ToTarget"></xs:enumeration>

      <xs:enumeration value="FromTarget"></xs:enumeration>

    </xs:restriction>

  </xs:simpleType>

  <xs:simpleType name="InterceptionScope">

  <xs:simpleType name="TriggerScope">

    <xs:restriction base="xs:string">

      <xs:enumeration value="Unidirectional"></xs:enumeration>

      <xs:enumeration value="Bidirectional"></xs:enumeration>