Projects

Overview
Project Title	Link Budget Digital Format (LBDF)
Approval	Approved
Document Number	to be assigned by Editor
Charter	5.02 Space Link Coding and Synchronization Working Group
Document Type	Orange
Description of Document	The scope of this document is to provide the definition of a Link Budget Digital Format (LBDF) that allows the sharing of TT&C (Tracking, Telemetry, and Command) and PDT (Payload Data Transmission) link budgets between CCSDS Agencies and potentially with and between external entities (e.g., aerospace industries) As the name suggests, LBDF will be a digital format, in XML language, the provides a snapshot of link budget results. In this way, CCSDS agencies can use their own link budget calculation tools as usual and then, by means of a conversion tool, to capture their results in a single XML format, that can be shared with other parties. At this stage, the receiving party can import (still by means of a conversion tool) the results of the LBDF in its own link budget tool, for possibly reviewing and cross-checking calculations. Notice that, for keeping the indipendency and confidentiality of the link budget tools adopted by each entity, this standard will define just the XML format for capturing link budget results, not the calculation methodology. Thus, all entities interested in importing/exporting LBDF files, will need to develop their own conversion tool.
Applicable Patents	There are no patent issues for this technology that are known by the CCSDS community
Patent Comments
Survey of Similar Standards Documents or Projects Undertaken in Other Bodies and elsewhere in CCSDS	RFM and CS WGs are not aware of similar projects
Resources
Book Editor	ESA
Book Editor Resources	10 mm
Prototype 1	ESA
Prototype 1 Resources	8 mm
Prototype 2
Prototype 2 Resources
Prototype 3
Prototype 3 Resources
Contribute
Monitor Only	NASA
Resource Comments	Project is common for RFM and C&S WGs. It is raised here under C&S only for avoiding duplication. It is also reported that ESA is suffering a shortage of manpower for supporting C&S and RFM WGs (see SLS AD report in Spring 2024)

Schedule

Legend for Schedule Milestones = Required for Orange Books = Required for Green Books = Required for Magenta Books = Required for Blue Books Note - Red Books are Draft Blue/Magenta Books Schedule Milestones	Original Completion Date (Date in M/D/YYYY format.)	Comments (Date in M/D/YYYY format.)
Project Approved	7/1/2024
Project Start Date	10/1/2024
Internal WG Review
First Draft Circulated to WG	10/1/2024
First Draft Comments Due	11/1/2024
Second draft circulated to WG	4/1/2025
Second Draft Comments Due	5/1/2025
Final WB Submitted to AD for Further Processing	6/1/2025
External Milestones
Secretariat Document Processing	9/1/2025
First Agency Review
RID Resolution
Secretariat Document Processing 2
Final Agency Review
RID Resolution
First Prototype Development
Second Prototype Development
CMC Approval	11/1/2025
Total Time to Complete (in months)	13