ISO 22663:2006

INTERNATIONAL ISO
STANDARD 22663
First edition
2006-04-15

Space data and information transfer
systems — Proximity-1 space link
protocol — Data link layer
Systèmes de transfert des informations et données spatiales —
Protocole pour liaisons spatiales de proximité 1 — Couche de liaisons
de données




Reference number
ISO 22663:2006(E)
©
ISO 2006

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ISO 22663:2006(E)
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ISO 22663:2006(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 22663 was prepared by the Consultative Committee for Space Data Systems (CCSDS) (as CCSDS
211.0-B-3, May 2004) and was adopted (without modifications, except those stated in Clause 2 of this
International Standard) by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee
SC 13, Space data and information transfer systems.

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INTERNATIONAL STANDARD ISO 22663:2006(E)

Space data and information transfer systems — Proximity-1
space link protocol — Data link layer
1 Scope
This International Standard defines the data link layer (framing, media access, data services and input-output
sublayers) of a Proximity-1 space link protocol. The specifications for the protocol data units, framing, media
access control, expedited and sequenced controlled data transfer, timing service, i/o control as well as the
procedures for establishing and terminating a session between a caller and responder are defined in this
International Standard.
This International Standard does not specify
a) individual implementations or products,
b) implementation of service interfaces within real systems,
c) methods or technologies required to perform the procedures, or
d) management activities required to configure and control the protocol.
The scope and field of application are furthermore detailed in subclauses 1.2 and 1.3 of the enclosed CCSDS
publication.
2 Requirements
Requirements are the technical recommendations made in the following publication (reproduced on the
following pages), which is adopted as an International Standard:
CCSDS 211.0-B-3, May 2004, Proximity-1 space link protocol — Data link layer.
For the purposes of international standardization, the modifications outlined below shall apply to the specific
clauses and paragraphs of publication CCSDS 211.0-B-3.
Pages i to v
This part is information that is relevant to the CCSDS publication only.
Pages 1-6 to 1-7
Add the following information to the references indicated:
[2] Document CCSDS 232.1-B-1, September 2003, is equivalent to ISO 22667:2005.
[3] Document CCSDS 232.0-B-1, September 2003, is equivalent to ISO 22664:2005.
[4] Document CCSDS 132.0-B-1, September 2003, is equivalent to ISO 22645:2005.
[5] Document CCSDS 131.0-B-1, September 2003, is equivalent to ISO 22641:2005.
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ISO 22663:2006(E)
[7] Document CCSDS 301.0-B-3, January 2002, is equivalent to ISO 11104:2003.
1)
[8] Document CCSDS 211.2-B-1, April 2003, is equivalent to ISO 21459:— .
1)
[9] Document CCSDS 211.1-B-1, April 2003, is equivalent to ISO 21460:— .
3 Revision of publication CCSDS 211.0-B-3
It has been agreed with the Consultative Committee for Space Data Systems that Subcommittee
ISO/TC 20/SC 13 will be consulted in the event of any revision or amendment of publication
CCSDS 211.0-B-3. To this end, NASA will act as a liaison body between CCSDS and ISO.


1)
To be published.
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ISO 22663:2006(E)








RECOMMENDATION FOR SPACE
DATA SYSTEM STANDARDS


PROXIMITY-1 SPACE LINK PROTOCOL—
DATA LINK LAYER



CCSDS 211.0-B-3

BLUE BOOK

May 2004

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ISO 22663:2006(E)
CCSDS RECOMMENDATION FOR PROXIMITY-1 SPACE DATA LINK PROTOCOL
AUTHORITY


Issue: Blue Book, Issue 3
Date: May 2004
Location: St. Hubert, Canada


This document has been approved for publication by the Management Council of the
Consultative Committee for Space Data Systems (CCSDS) and represents the consensus
technical agreement of the participating CCSDS Member Agencies. The procedure for
review and authorization of CCSDS Recommendations is detailed in Procedures Manual for
the Consultative Committee for Space Data Systems, and the record of Agency participation
in the authorization of this document can be obtained from the CCSDS Secretariat at the
address below.


This Recommendation is published and maintained by:

CCSDS Secretariat
Office of Space Communication (Code M-3)
National Aeronautics and Space Administration
Washington, DC 20546, USA
CCSDS 211.0-B-3 Page i May 2004
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ISO 22663:2006(E)
CCSDS RECOMMENDATION FOR PROXIMITY-1 SPACE DATA LINK PROTOCOL
STATEMENT OF INTENT
The Consultative Committee for Space Data Systems (CCSDS) is an organization officially
established by the management of member space Agencies. The Committee meets
periodically to address data systems problems that are common to all participants, and to
formulate sound technical solutions to these problems. Inasmuch as participation in the
CCSDS is completely voluntary, the results of Committee actions are termed
Recommendations and are not considered binding on any Agency.
This Recommendation is issued by, and represents the consensus of, the CCSDS Plenary
body. Agency endorsement of this Recommendation is entirely voluntary. Endorsement,
however, indicates the following understandings:
– Whenever an Agency establishes a CCSDS-related standard, this standard will be
in accord with the relevant Recommendation. Establishing such a standard does
not preclude other provisions which an Agency may develop.
– Whenever an Agency establishes a CCSDS-related standard, the Agency will provide
other CCSDS member Agencies with the following information:
• The standard itself.
• The anticipated date of initial operational capability.
• The anticipated duration of operational service.
– Specific service arrangements are made via memoranda of agreement. Neither this
Recommendation nor any ensuing standard is a substitute for a memorandum of
agreement.
No later than five years from its date of issuance, this Recommendation will be reviewed by
the CCSDS to determine whether it should: (1) remain in effect without change; (2) be
changed to reflect the impact of new technologies, new requirements, or new directions; or,
(3) be retired or canceled.
In those instances when a new version of a Recommendation is issued, existing CCSDS-
related Agency standards and implementations are not negated or deemed to be non-CCSDS
compatible. It is the responsibility of each Agency to determine when such standards or
implementations are to be modified. Each Agency is, however, strongly encouraged to direct
planning for its new standards and implementations towards the later version of the
Recommendation.
CCSDS 211.0-B-3 Page ii May 2004
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ISO 22663:2006(E)
CCSDS RECOMMENDATION FOR PROXIMITY-1 SPACE DATA LINK PROTOCOL
FOREWORD

Through the process of normal evolution, it is expected that expansion, deletion, or
modification of this document may occur. This Recommendation is therefore subject to
CCSDS document management and change control procedures which are defined in the
Procedures Manual for the Consultative Committee for Space Data Systems. Current
versions of CCSDS documents are maintained at the CCSDS Web site:
http://www.ccsds.org/
Questions relating to the contents or status of this document should be addressed to the
CCSDS Secretariat at the address indicated on page i.
CCSDS 211.0-B-3 Page iii May 2004
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ISO 22663:2006(E)
CCSDS RECOMMENDATION FOR PROXIMITY-1 SPACE DATA LINK PROTOCOL
At time of publication, the active Member and Observer Agencies of the CCSDS were:

Member Agencies

– Agenzia Spaziale Italiana (ASI)/Italy.
– British National Space Centre (BNSC)/United Kingdom.
– Canadian Space Agency (CSA)/Canada.
– Centre National d’Etudes Spatiales (CNES)/France.
– Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)/Germany.
– European Space Agency (ESA)/Europe.
– Federal Space Agency (FSA)/Russian Federation.
– Instituto Nacional de Pesquisas Espaciais (INPE)/Brazil.
– Japan Aerospace Exploration Agency (JAXA)/Japan.
– National Aeronautics and Space Administration (NASA)/USA.

Observer Agencies

– Austrian Space Agency (ASA)/Austria.
– Central Research Institute of Machine Building (TsNIIMash)/Russian Federation.
– Centro Tecnico Aeroespacial (CTA)/Brazil.
– Chinese Academy of Space Technology (CAST)/China.
– Commonwealth Scientific and Industrial Research Organization (CSIRO)/Australia.
– Communications Research Laboratory (CRL)/Japan.
– Danish Space Research Institute (DSRI)/Denmark.
– European Organization for the Exploitation of Meteorological Satellites
(EUMETSAT)/Europe.
– European Telecommunications Satellite Organization (EUTELSAT)/Europe.
– Federal Science Policy Office (FSPO)/Belgium.
– Hellenic National Space Committee (HNSC)/Greece.
– Indian Space Research Organization (ISRO)/India.
– Institute of Space Research (IKI)/Russian Federation.
– KFKI Research Institute for Particle & Nuclear Physics (KFKI)/Hungary.
– Korea Aerospace Research Institute (KARI)/Korea.
– MIKOMTEK: CSIR (CSIR)/Republic of South Africa.
– Ministry of Communications (MOC)/Israel.
– National Oceanic & Atmospheric Administration (NOAA)/USA.
– National Space Program Office (NSPO)/Taipei.
– Space and Upper Atmosphere Research Commission (SUPARCO)/Pakistan.
– Swedish Space Corporation (SSC)/Sweden.
– United States Geological Survey (USGS)/USA.
CCSDS 211.0-B-3 Page iv May 2004
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ISO 22663:2006(E)
CCSDS RECOMMENDATION FOR PROXIMITY-1 SPACE DATA LINK PROTOCOL
DOCUMENT CONTROL

Document Title and Issue Date Status

CCSDS Proximity-1 Space Link Protocol October Superseded
211.0-B-1 2002

CCSDS Proximity-1 Space Link Protocol— April Superseded
211.0-B-2 Data Link Layer 2003

CCSDS Proximity-1 Space Link Protocol— May Current Issue
211.0-B-3 Data Link Layer 2004
Note
Physical layer specifications, previously contained in annex F, and Coding and
Synchronization sublayer specifications, previously contained in subsection 4.1 and annex D,
have been moved to two new documents, CCSDS 211.1-B-1 (reference [9]) and CCSDS
211.2-B-1 (reference [8]), respectively.
Additionally, text has been added to two notes in annex A in order to clarify cross support
requirements.

CCSDS 211.0-B-3 Page v May 2004
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ISO 22663:2006(E)
CCSDS RECOMMENDATION FOR PROXIMITY-1 SPACE DATA LINK PROTOCOL
CONTENTS
Section Page
1 INTRODUCTION.1-1

1.1 PURPOSE.1-1
1.2 SCOPE.1-1
1.3 APPLICABILITY.1-1
1.4 RATIONALE.1-2
1.5 CONVENTIONS AND DEFINITIONS .1-2
1.6 REFERENCES.1-6

2 OVERVIEW.2-1

2.1 CONCEPT OF PROXIMITY-1.2-1
2.2 OVERVIEW OF SERVICES.2-6

3 PROTOCOL DATA UNITS .3-1

3.1 CONTEXT OF THE VERSION-3 TRANSFER FRAME.3-1
3.2 VERSION-3 TRANSFER FRAME .3-1

4 DATA LINK LAYER.4-1

4.1 FRAME SUBLAYER.4-1
4.2 MEDIUM ACCESS CONTROL (MAC) SUBLAYER. 4-2
4.3 DATA SERVICES SUBLAYER.4-5
4.4 I/O INTERFACE SUBLAYER.4-8

5 PROXIMITY-1 TIMING SERVICES. 5-1

5.1 COUPLED NON-COHERENT PROXIMITY TIMING SERVICE . 5-1
5.2 PROXIMITY TIME CORRELATION .5-1

6 DATA SERVICES OPERATIONS.6-1

6.1 OVERVIEW.6-1
6.2 PROXIMITY-1 STATE TABLES .6-1
6.3 ELEMENTS AND EVENTS THAT AFFECT STATE STATUS .6-13
6.4 STATE TRANSITION TABLES AND DIAGRAMS.6-18
6.5 SIMPLEX OPERATIONS.6-28
6.6 INTERFACES WITH THE PHYSICAL LAYER .6-29
6.7 SENDING OPERATIONS.6-29
6.8 RECEIVING OPERATIONS.6-31

CCSDS 211.0-B-3 Page vi May 2004
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ISO 22663:2006(E)
CCSDS RECOMMENDATION FOR PROXIMITY-1 SPACE DATA LINK PROTOCOL
CONTENTS (continued)
Section Page
7 COMMUNICATION OPERATIONS PROCEDURE FOR PROXIMITY LINKS
(COP-P).7-1

7.1 SENDING PROCEDURES (FOP-P).7-1
7.2 RECEIVING PROCEDURES (FARM-P) .7-7

8 INPUT/OUTPUT (I/O) SUBLAYER OPERATIONS.8-1

8.1 SENDING OPERATIONS.8-1
8.2 RECEIVING OPERATIONS.8-2

ANNEX A VARIABLE-LENGTH SUPERVISORY PROTOCOL DATA FIELD
FORMATS . A-1
ANNEX B MANAGEMENT INFORMATION BASE (MIB) PARAMETERS. B-1
ANNEX C NASA MARS SURVEYOR PROJECT 2001 ODYSSEY ORBITER
PROXIMITY SPACE LINK CAPABILITIES. C-1
ANNEX D NOTIFICATIONS TO VEHICLE CONTROLLER . D-1
ANNEX E ABBREVIATIONS AND ACRONYMS. E-1
ANNEX F INFORMATIVE REFERENCES.F-1

Figure
1-1 Bit Numbering Convention. 1-6
2-1 Proximity-1 Layered Protocol Model. 2-4
3-1 Proximity-1 Protocol Data Unit Context Diagram . 3-1
3-2 Version-3 Transfer Frame. 3-2
3-3 Transfer Frame Header . 3-3
3-4 Proximity-1 Transfer Frame Data Field Structure. 3-7
3-5 Proximity Link Control Word Fields. 3-12
4-1 COP-P Process. 4-7
5-1 Proximity Time Tagging and Time Correlation . 5-3
5-2 Transferring Time to a Remote Asset. 5-4
6-1 Full Duplex State Transition Diagram. 6-19
6-2 Half Duplex State Transition Diagram . 6-23
6-3 Simplex Operations. 6-28
A-1 Type 1 SPDU Data Field Contents. A-2
A-2 SET TRANSMITTER PARAMETERS Directive. A-3
A-3 SET CONTROL PARAMETERS Directive . A-6
A-4 SET RECEIVER PARAMETERS Directive . A-8
A-5 SET V(R) Directive . A-10
A-6 Report Request. A-11
CCSDS 211.0-B-3 Page vii May 2004
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ISO 22663:2006(E)
CCSDS RECOMMENDATION FOR PROXIMITY-1 SPACE DATA LINK PROTOCOL
CONTENTS (continued)
Figure Page
A-7 Proximity Link Control Word. A-13
A-8 SET PL EXTENSIONS. A-15
A-9 Report Source Spacecraft ID . A-19
A-10 Type 2 SPDU Data Field Contents. A-20
C-1 NASA Mars Surveyor Project 2001 Odyssey SET TRANSMITTER
PARAMETERS Directive.C-2
C-2 NASA Mars Surveyor Project 2001 Odyssey SET RECEIVER
PARAMETERS Directive.C-4
C-3 Proximity Link Control Word Fields.C-7

Table
3-1 Frame Data Field Construction Rules. 3-4
3-2 Segment Header Sequence Flags. 3-8
3-3 Fixed Length Supervisory Protocol Data Unit . 3-11
3-4 Variable Length Supervisory Protocol Data Unit. 3-14
6-1 Proximity-1 Data Services Operations Roadmap . 6-1
6-2 States Independent of the DUPLEX Variable . 6-2
6-3 States When DUPLEX = Full. 6-3
6-4 States When DUPLEX = Half . 6-5
6-5 States When DUPLEX = Simplex (receive or transmit) . 6-6
6-6 Proximity-1 Control Variable Initialization Table. 6-18
6-7 Full Duplex Session Establishment/Data Services State Transition Table. 6-20
6-8 Full Duplex Communication Change State Table . 6-21
6-9 Full Duplex Session Termination State Table . 6-22
6-10 Half Duplex Session Establishment and Data Services. 6-24
6-11 Half Duplex Communication Change State Table . 6-26
6-12 Half Duplex Session Termination State Table . 6-27
6-13 Simplex State Transition Table. 6-28
6-14 Data Source Selection for Output Bit Stream with TRANSMIT = on and
MODULATION = on . 6-30
CCSDS 211.0-B-3 Page viii May 2004
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ISO 22663:2006(E)
CCSDS RECOMMENDATION FOR PROXIMITY-1 SPACE DATA LINK PROTOCOL
1 INTRODUCTION
1.1 PURPOSE
The purpose of this document is to provide a Recommendation for Space Data System
Standards in the area of Proximity space links. Proximity space links are defined to be short-
range, bi-directional, fixed or mobile radio links, generally used to communicate among
probes, landers, rovers, orbiting constellations, and orbiting relays. These links are
characterized by short time delays, moderate (not weak) signals, and short, independent
sessions.
1.2 SCOPE
This Recommendation defines the Data Link layer (framing, media access, data services, and
input-output sublayers). The specifications for the protocol data units, framing, media access
control, expedited and sequenced controlled data transfer, timing service, i/o control as well
as the procedures for establishing and terminating a session between a caller and responder
are defined in this document. The Coding and Synchronization sublayer is defined in the
separate CCSDS recommendation entitled, Proximity-1 Space Link Protocol—Coding and
Synchronization Sublayer; see reference [8]. The Physical layer is defined in the separate
CCSDS recommendation entitled, Proximity-1 Space Link Protocol—Physical Layer; see
reference [9].
This Recommendation does not specify a) individual implementations or products, b)
implementation of service interfaces within real systems, c) the methods or technologies
required to perform the procedures, or d) the management activities required to configure and
control the protocol.
1.3 APPLICABILITY
This Recommendation applies to the creation of Agency standards and to future data
communications over space links between CCSDS Agencies in cross-support situations. It
applies also to internal Agency links where no cross-support is required. It includes
specification of the services and protocols for inter-Agency cross support. It is neither a
specification of, nor a design for, systems that may be implemented for existing or future
missions.
The Recommendation specified in this document is to be invoked through the normal
standards programs of each CCSDS Agency and is applicable to those missions for which
cross support based on capabilities described in this Recommendation is anticipated. Where
mandatory capabilities are clearly indicated in sections of the Recommendation, they must be
implemented when this document is used as a basis for cross support. Where options are
allowed or implied, implementation of these options is subject to specific bilateral cross
support agreements between the Agencies involved.
CCSDS 211.0-B-3 Page 1-1 May 2004
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ISO 22663:2006(E)
CCSDS RECOMMENDATION FOR PROXIMITY-1 SPACE DATA LINK PROTOCOL
1.4 RATIONALE
The CCSDS believes it is important to document the rationale underlying the
recommendations chosen, so that future evaluations of proposed changes or improvements
will not lose sight of previous decisions. Concept and rationale behind the decisions that
formed the basis for Proximity-1 will be documented in the CCSDS Proximity-1 Space Link
Green Book, which is under development.
1.5 CONVENTIONS AND DEFINITIONS
1.5.1 DEFINITIONS
1.5.1.1 Definitions from the Open Systems Interconnection (OSI) Basic Reference
Model
This Recommendation makes use of a number of terms defined in reference [1]. The use of
those terms in this Recommendation shall be understood in a generic sense, i.e., in the sense
that those terms are generally applicable to any of a variety of technologies that provide for
the exchange of information between real systems. Those terms are as follows:
a) connection;
b) Data Link layer;
c) entity;
d) physical layer;
e) protocol control information;
f) Protocol Data Unit (PDU);
g) real system;
h) segmenting;
i) service;
j) Service Access Point (SAP);
k) SAP address;
l) Service Data Unit (SDU).
1.5.1.2 Terms Defined in This Recommendation
For the purposes of this Recommendation, the following definitions also apply. Many other
terms that pertain to specific items are defined in the appropriate sections.
CCSDS 211.0-B-3 Page 1-2 May 2004
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ISO 22663:2006(E)
CCSDS RECOMMENDATION FOR PROXIMITY-1 SPACE DATA LINK PROTOCOL
asynchronous channel: a data channel where the symbol data are modulated onto the
channel only for the period of the message. The message must be preceded by an
acquisition sequence to achieve symbol synchronization. Bit synchronization must be
reacquired on every message. A hailing channel is an example of an asynchronous
channel.
asynchronous data link: a data link consisting of a sequence of variable-length Proximity
Link Transmission Units (PLTUs), which are not necessarily concatenated. Two
types of asynchronous data links are:
1) Asynchronous Data Link over an Asynchronous Channel
Hailing provides an example of an asynchronous data link over an asynchronous
channel. An important issue i
...