Update 33128/r17/urn_3GPP_ns_li_3GPPX1Extensions.xsd

<xs:complexType name="IMST3TargetIdentifierExtension">

    <xs:choice>

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

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

    </xs:choice>

  </xs:complexType>

 <xs:simpleType name="DirectionOfMediaToTargetIdentifier">

 <xs:simpleType name="MediaDirectionForTarget">

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

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

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