Update 33128/r17/urn_3GPP_ns_li_3GPPX1Extensions.xsd

  <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="TargetIdentifierDestiny" type="TargetIdentifierDestiny"></xs:element>

    </xs:choice>

  </xs:complexType>

 <xs:simpleType name="TargetIdentifierDestiny">

    <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:schema>