==== sky_logical_channel_number_descriptor

[source,xml]
----
<sky_logical_channel_number_descriptor region_id="uint16, required">
  <!-- One per service -->
  <service service_id="uint16, required"
           service_type="uint8, required"
           channel_id="uint16, required"
           logical_channel_number="uint16, required"
           sky_id="uint16, required"/>
</sky_logical_channel_number_descriptor>
----
