Space Link Extension - Service Management - CCSDS

DRAFT RECOMMENDED STANDARD FOR SPACE LINK EXTENSION SERVICE MANAGEMENT
CSPC-22
CSPC-23
For each Space Link Service Request in a valid CSP-I for which a single conformant resource
configuration exists, as validated in accordance with CSPC-16 b), CM shall schedule the resources and
create a single Space Link Service Result in accordance with the referenced profiles, such that:
a) the set of resources constitutes a conformant resource configuration as defined in CSPC-16 b);
b) if one or more preferred antennas are specified in the Space Link Service Request and at least one
conformant resource configuration exists that uses one of the preferred antennas, one of the
conformant resource configurations that uses a preferred antenna is scheduled;
c) the scheduledSpaceLinkSessionStartTime of the Space Link Service Result is greater
than or equal to (spaceLinkSessionStartTime –
spaceLinkSessionStartTimeLead) of the Space Link Service Request and less than or
equal to (spaceLinkSessionStartTime + spaceLinkSessionStartTimeLag);
d) the scheduledSpaceLinkSessionStopTime of the Space Link Service Result is greater
than or equal to (scheduledSpaceLinkSessionStartTime +
minimumSessionDuration) and less than or equal to
(scheduledSpaceLinkSessionStartTime + preferredSessionDuration) of the
Space Link Service Request;
e) the scheduledCarrierStartTime for each carrier included in the Space Link Service
Result shall be equal to the scheduledSpaceLinkSessionStartTime of the Space Link
Service Result with which it is associated plus the carrierStartTimeOffset specified for
that carrier in the referenced Space Link Carrier Profile;
f) the scheduledCarrierStopTime for each carrier included in the Space Link Service Result
shall be equal to the scheduledSpaceLinkSessionStopTime for the Space Link Service
Result with which it is associated plus the carrierStopTimeOffset specified for that carrier
in the referenced Space Link Carrier Profile.
g) The difference between the values of the scheduledServicePackageStartTime and the
scheduledServicePackageStopTime shall be less than
maxServicePackageTemporalSpan.
h) For each ServiceScenarioResult data set, the difference between the values of the earliest
scheduledSpaceLinkSessionStartTime and the
scheduledSpaceLinkSessionStopTime, for all SpaceLinkServiceResult data
sets contained by that ServiceScenarioResult data set, shall be less than
maxServiceScenarioTemporalSpan.
[perform operation]
For each Space Link Service Request in a valid CSP-I for which a single conformant resource
configuration exists, as validated in accordance with CSPC-16 b), CM should schedule the resources
and create the Space Link Service Result such that:
a) the scheduledSpaceLinkSessionStartTime is as close to the requested
spaceLinkSessionStartTime as possible;
b) the difference between the scheduledSpaceLinkSessionStartTime and the
scheduledSpaceLinkSessionStopTime of the scheduled Space Link Service Session is
as close to preferredSessionDuration as possible.
[perform operation]
CCSDS 910.11-R-2 Page 4-11 March 2008