Charters - 5.04 Space Link Protocols Working Group

Name of Group
Short Name
Area
Chairperson
Chairperson E-Mail Address
Chairperson Agency
Deputy Chairperson
Deputy Chairperson E-Mail Address
Deputy Chairperson Agency
Mailing List
Scope of Activity
Rationale for Activity
Goals
Survey of Similar Standards Efforts Undertaken in Other Bodies and elsewhere in CCSDS
Patent Licensing Applicability for Future Standards
Technical Risk Mitigation Strategy
Management Risk Mitigation Strategy
Description of Change	Kazz Greg (6/15/2015 1:41 PM): Added USLP Blue and Green Book to this charter. Removed work already completed from the charter (Proximity-1 5 year review etc)
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Name of Group	5.04 Space Link Protocols Working Group
Area	Space Link Services Area (SLS)
Chairperson	Greg Kazz
Chairperson E-Mail Address	Greg.J.Kazz@jpl.nasa.gov
Chairperson Agency	NASA
Deputy Chairperson	Mathew Cosby
Deputy Chairperson E-Mail Address	Matt.Cosby@Goonhilly.org
Deputy Chairperson Agency	UK Space Agency
Mailing List	sls-slp@mailman.ccsds.org
Scope of Activity	This WG develops and adapts wherever possible link layer protocols for new mission environments (proximity communication, formation flying, optical communication, missions utilizing high rate telemetry and telecommand.
Rationale for Activity	Develop the CCSDS next generation link layer protocol, called the Unified Space Data Link Protocol (USLP). This protocol is to support data exchange over all space communications links: space-to-ground, ground-to-space, and space-to-space. This protocol has provision for several margin enhancing capabilities including but not limited to high data rate (hundreds of Megabytes) missions and expanded Spacecraft ID Name Space. In line with the evolutions in the CCSDS link layer protocols which occurred in the recent years, e.g., development of the Proximity-1 Space Link Protocol, it has become necessary to update and complete the Green Books related to these link layer protocols. It is important to note that this WG maintains a very close liaison with the related Channel Coding WG and RF & Modulation WG.
Goals	1) Develop the Unified Space Data Link Protocol (USLP) Blue Book. 2) Develop the Unified Space Data Link Protocol (USLP) Green Book. 3) Revise CCSDS 133.0-B-1 to modify and limit the scope of concepts such as Logical Data Path and APID Qualifiers. 4) Revise CCSDS 130.0-G-3 Overview of Space Communications Protocols Green Book to be consistent with the revised SPP. 5) Revise CCSDS 133.1-B (Encapsulation Service) to remove applicability for Space Packets and consistently rename it to "Encapsulation Packet Protocol" In the past years, the SLP WG has completed the following goals: Updated Proximity-1 Space Link Protocol—Data Link Layer - Blue Book to Issue 5; Updated Proximity-1 Green Book to Issue 2; Updated Space Data Link Protocols Green Book to Issue 2; Updated Overview of Space Communications Protocols Green Book to Issue 3; Updated TC Space Data Link Protocol for inclusion of SDLS Requirements; Updated AOS Space Data Link Protocol for inclusion of 5-year Review and SDLS Requirements; Update the TM Space Data Link Protocol Blue Book for inclusion of 5-year Review and SDLS Requirements; Updated Space Data Link Protocol Green Book 130.2 to conform to the changes to the TC Sync and Channel Coding Blue Book.
Survey of Similar Standards Efforts Undertaken in Other Bodies and elsewhere in CCSDS
Patent Licensing Applicability for Future Standards	There are no patents envisioned as a result of this working group.
Technical Risk Mitigation Strategy	No technical risks have been identified.
Management Risk Mitigation Strategy	The schedule is somewhat dependent upon having the members of the Working Group provide a sufficient review of draft white, red, and green books. Another schedule risk involves getting technical editing assistance from the Document Editor on the submitted technical documentation.