<simpleType name="CodeRadioFrequencyAreaBaseType">
    <union>
        <simpleType>
            <restriction base="string">
                <enumeration value="COV" />
                <enumeration value="T_COV" />
                <enumeration value="SCL" />
                <enumeration value="RHG" />
                <enumeration value="UNREL" />
                <enumeration value="RES" />
                <enumeration value="UUS" />
                <enumeration value="OUT" />
                <enumeration value="ESV" />
            </restriction>
        </simpleType>
        <simpleType>
            <restriction base="string">
                <pattern value="OTHER(:(\w|_){1,58})?" />
            </restriction>
        </simpleType>
    </union>
</simpleType>

• CodeRadioFrequencyAreaBaseType
• aixm:CodeRadioFrequencyAreaType
• aixm:type