Space Link Extension - Service Management - CCSDS

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DRAFT RECOMMENDED STANDARD FOR SPACE LINK EXTENSION SERVICE MANAGEMENT words, CM continues to honor any start and stop window constraints, agreed-to minimum contact duration, etc. This operation results in a notification to UM of the modified Service Package. 2.2.4 CONFIGURATION PROFILE SERVICE A Configuration Profile holds information about the carrier and transfer service instances necessary for CM to configure the production and provision of SLE transfer services. The SLE-SM Configuration Profile service is used to add, delete, and query configuration information to be used by Service Packages. The Configuration Profile service handles two sets of information: the Carrier Profiles (that contain the Transfer Service Profiles) and the Event Sequence Profiles. There are ten Configuration Profile operations that CM can perform when invoked by UM: a) ADD_SPACE_LINK_SESSION_PROFILE (ASLSP)—to add a new Space Link Session Profile at CM; b) DELETE_SPACE_LINK_SESSION_PROFILE (DSLSP)—to delete a Space Link Session Profile that currently resides at CM; c) QUERY_SPACE_LINK_SESSION_PROFILE (QSLSP)—to query the content of a Space Link Session Profile that resides at CM; d) ADD_SPACE_LINK_EVENTS_PROFILE (ASLEP)—to add a new Space Link Events Sequence Profile at CM; e) DELETE_SPACE_LINK_EVENTS_PROFILE (DSLEP)—to delete a Space Link Events Sequence Profile that currently resides at CM; f) QUERY_SPACE_LINK_EVENTS_PROFILE (QSLEP)—to query a Space Link Events Sequence Profile that currently resides at CM. g) ADD_SLS_TRANSFER_SERVICE_PROFILE (ASTSP)—to add a new Space Link Session Transfer Service Profile at CM; h) ADD_RETRIEVAL_TRANSFER_SERVICE_PROFILE (ARTSP)—to add a new Retrieval Transfer Service Profile at CM; i) DELETE_TRANSFER_SERVICE_PROFILE (DTSP)—to delete a Retrieval or SLS Transfer Service Profile that currently resides at CM; j) QUERY_TRANSFER_SERVICE_PROFILE (QTSP)—to query the contents of a Retrieval or SLS Transfer Service Profile that resides at CM. No Configuration Profile operations may be performed by UM. CCSDS 910.11-R-2 Page 2-11 March 2008
DRAFT RECOMMENDED STANDARD FOR SPACE LINK EXTENSION SERVICE MANAGEMENT UM invokes the ADD_SPACE_LINK_SESSION_PROFILE, ADD_SLS_TRANSFER_- SERVICE_PROFILE, ADD_RETRIEVAL_TRANSFER_SERVICE_PROFILE, or ADD_SPACE_LINK_EVENTS_PROFILE operation to add a new profile to the set of Configuration Profiles on record at the SLE Complex. Each new Profile is validated by CM against the previously negotiated Service Agreement to determine if the parameter values are within the scope of the agreement. If they are, CM accepts the new profile and informs UM. If the request is invalid, CM rejects the new profile and informs UM, citing the reason(s) for rejection. UM invokes the DELETE_SPACE_LINK_SESSION_PROFILE, DELETE_- TRANSFER_SERVICE_PROFILE, or DELETE_SPACE_LINK_EVENTS_PROFILE operation to delete no-longer-needed profiles. Normally CM will comply with the invocation, delete the profile, and confirm the deletion to UM. However, under some circumstances (such as the Profile being cited by an active or forthcoming Service Package), CM will refuse to delete and will inform UM of the failure of the deletion invocation and provide the reason for failure. UM invokes the QUERY_SPACE_LINK_SESSION_PROFILE, QUERY_TRANSFER_- SERVICE_PROFILE or QUERY_SPACE_LINK_EVENTS_PROFILE operation to query the content of a specified profile on record at CM. This invocation provides a mechanism for validating consistency between UM and CM databases. The configuration parameters explicitly specified in the ADD_SPACE_LINK_SESSION_PROFILE (ASLSP) and QSLSP operations, and their allowed ranges of values, are conformant with the CCSDS standards for RF and modulation systems (reference [15]), channel coding (references [5] and [7]), telemetry framing (references [3] and [6]) and the RAF, RCF, and communications link transmission unit (CLTU) SLE transfer services (references [9], [10], and [12]). However, it is possible for space link service providers to use SLE-SM even though their services are not conformant with some or all of these CCSDS standards. The ASLSP operation supports the submission of Carrier Profiles characterizing other space link service configurations, as long as UM and CM agree on the format and content of those Carrier Profiles by means outside the scope of this standard. Similarly, the QSLSP operation allows for UM to query the contents of such bilaterally agreed Carrier Profiles. 2.2.5 TRAJECTORY PREDICTION SERVICE The SLE-SM Trajectory Prediction operations are used to manage the spacecraft trajectory data that are employed by CM to derive the pointing angles and Doppler compensation settings needed to acquire the spacecraft. There are three Trajectory Prediction operations that CM can perform when invoked by UM: a) ADD_TRAJECTORY_PREDICTION (ATP)—to add a new Trajectory Prediction at CM; CCSDS 910.11-R-2 Page 2-12 March 2008
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