1、BSI Standards PublicationBS ISO 21459:2015Space data and informationtransfer systems Proximity-1space link protocol Codingand synchronization sublayerBS ISO 21459:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 21459:2015. It supersedes BS ISO 21459:2006 w
2、hich is withdrawn.The UK participation in its preparation was entrusted to Technical Committee ACE/68, Space systems and operations.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisi
3、ons of a contract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 87630 1 ICS 49.140 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published u
4、nder the authority of the Standards Policy and Strategy Committee on 31 December 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 21459:2015 ISO 2015Space data and information transfer systems Proximity-1 space link protocol Coding and synchronization sublayerSys
5、tmes de transfert des informations et donnes spatiales Protocole pour liaisons spatiales de proximit 1 Sous-couche de codage et synchronisationINTERNATIONAL STANDARDISO21459Second edition2015-08-15Reference numberISO 21459:2015(E)BS ISO 21459:2015ISO 21459:2015(E)ii ISO 2015 All rights reservedCOPYR
6、IGHT PROTECTED DOCUMENT ISO 2015, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, wit
7、hout prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS
8、 ISO 21459:2015ISO 21459:2015(E) ISO 2015 All rights reserved iiiForeword 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 c
9、ommittees. 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 t
10、he 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 Internat
11、ional 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
12、 the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 21459 was prepared by the Consultative Committee for Space Data Systems (CCSDS) (as CCSDS 211.2-B-2, December 2013) and was adopted (without modifications except those stated in clause
13、 2 of this International Standard) by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 13, Space data and information transfer systems. This second edition of ISO 21459:2015 cancels and replaces the first edition (ISO 21459:2006), which has been technically revised. BS ISO
14、 21459:2015BS ISO 21459:2015Recommendation for Space Data System Standards PROXIMITY-1 SPACE LINK PROTOCOLCODING AND SYNCHRONIZATION SUBLAYER RECOMMENDED STANDARD CCSDS 211.2-B-2 BLUE BOOK December 2013 BS ISO 21459:2015CCSDS RECOMMENDED STANDARD FOR PROXIMITY-1 SPACE LINK PROTOCOLCODING AND SYNCHRO
15、NIZATION SUBLAYER CCSDS 211.2-B-2 Page i December 2013 AUTHORITY Issue: Recommended Standard, Issue 2 Date: December 2013 Location: Washington, DC, USA This document has been approved for publication by the Management Council of the Consultative Committee for Space Data Systems (CCSDS) and represent
16、s the consensus technical agreement of the participating CCSDS Member Agencies. The procedure for review and authorization of CCSDS documents is detailed in Organization and Processes for the Consultative Committee for Space Data Systems (CCSDS A02.1-Y-3), and the record of Agency participation in t
17、he authorization of this document can be obtained from the CCSDS Secretariat at the address below. This document is published and maintained by: CCSDS Secretariat Space Communications and Navigation Office, 7L70 Space Operations Mission Directorate NASA Headquarters Washington, DC 20546-0001, USA IS
18、O 21459:2015(E) ISO 2015 All rights reservedBS ISO 21459:2015CCSDS RECOMMENDED STANDARD FOR PROXIMITY-1 SPACE LINK PROTOCOLCODING AND SYNCHRONIZATION SUBLAYER CCSDS 211.2-B-2 Page ii December 2013 STATEMENT OF INTENT The Consultative Committee for Space Data Systems (CCSDS) is an organization offici
19、ally established by the management of its members. 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 Commi
20、ttee actions are termed Recommended Standards and are not considered binding on any Agency. This Recommended Standard is issued by, and represents the consensus of, the CCSDS members. Endorsement of this Recommendation is entirely voluntary. Endorsement, however, indicates the following understandin
21、gs: o Whenever a member establishes a CCSDS-related standard, this standard will be in accord with the relevant Recommended Standard. Establishing such a standard does not preclude other provisions which a member may develop. o Whenever a member establishes a CCSDS-related standard, that member will
22、 provide other CCSDS members with the following information: - The standard itself. - The anticipated date of initial operational capability. - The anticipated duration of operational service. o Specific service arrangements shall be made via memoranda of agreement. Neither this Recommended Standard
23、 nor any ensuing standard is a substitute for a memorandum of agreement. No later than three years from its date of issuance, this Recommended Standard 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 techn
24、ologies, new requirements, or new directions; or (3) be retired or canceled. In those instances when a new version of a Recommended Standard is issued, existing CCSDS-related member standards and implementations are not negated or deemed to be non-CCSDS compatible. It is the responsibility of each m
25、ember to determine when such standards or implementations are to be modified. Each member is, however, strongly encouraged to direct planning for its new standards and implementations towards the later version of the Recommended Standard. ISO 21459:2015(E) ISO 2015 All rights reservedBS ISO 21459:20
26、15CCSDS RECOMMENDED STANDARD FOR PROXIMITY-1 SPACE LINK PROTOCOLCODING AND SYNCHRONIZATION SUBLAYER CCSDS 211.2-B-2 Page iii December 2013 FOREWORD Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CCSDS shall not be held responsibl
27、e for identifying any or all such patent rights. Through the process of normal evolution, it is expected that expansion, deletion, or modification of this document may occur. This Recommended Standard is therefore subject to CCSDS document management and change control procedures, which are defined
28、in Organization and Processes for the Consultative Committee for Space Data Systems (CCSDS A02.1-Y-3). 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 Secreta
29、riat at the address indicated on page i. ISO 21459:2015(E) ISO 2015 All rights reservedBS ISO 21459:2015CCSDS RECOMMENDED STANDARD FOR PROXIMITY-1 SPACE LINK PROTOCOLCODING AND SYNCHRONIZATION SUBLAYER CCSDS 211.2-B-2 Page iv December 2013 At time of publication, the active Member and Observer Agenc
30、ies of the CCSDS were: Member Agencies Agenzia Spaziale Italiana (ASI)/Italy. Canadian Space Agency (CSA)/Canada. Centre National dEtudes Spatiales (CNES)/France. China National Space Administration (CNSA)/Peoples Republic of China. Deutsches Zentrum fr Luft- und Raumfahrt (DLR)/Germany. European Sp
31、ace 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. UK Space Agency/United Kingdom. Observer Agencies Austrian Space
32、 Agency (ASA)/Austria. Belgian Federal Science Policy Office (BFSPO)/Belgium. Central Research Institute of Machine Building (TsNIIMash)/Russian Federation. China Satellite Launch and Tracking Control General, Beijing Institute of Tracking and Telecommunications Technology (CLTC/BITTT)/China. Chines
33、e Academy of Sciences (CAS)/China. Chinese Academy of Space Technology (CAST)/China. Commonwealth Scientific and Industrial Research Organization (CSIRO)/Australia. Danish National Space Center (DNSC)/Denmark. Departamento de Cincia e Tecnologia Aeroespacial (DCTA)/Brazil. European Organization for
34、the Exploitation of Meteorological Satellites (EUMETSAT)/Europe. European Telecommunications Satellite Organization (EUTELSAT)/Europe. Geo-Informatics and Space Technology Development Agency (GISTDA)/Thailand. Hellenic National Space Committee (HNSC)/Greece. Indian Space Research Organization (ISRO)
35、/India. Institute of Space Research (IKI)/Russian Federation. KFKI Research Institute for Particle b) data formats; and c) the procedures performed to generate and process the data formats. It does not specify: a) individual implementations or products; b) the methods or technologies required to per
36、form the procedures; or c) the management activities required to configure and control the protocol. The Coding and Synchronization Sublayer is part of the Data Link Layer. The rest of the Data Link Layer is defined in the separate CCSDS Recommended Standard entitled, Proximity-1 Space Link Protocol
37、Data Link Layer (reference 3). The Physical Layer is defined in the separate CCSDS Recommended Standard entitled, Proximity-1 Space Link ProtocolPhysical Layer (reference 4). 1.3 APPLICABILITY This Recommended Standard applies to the creation of Agency standards and to future data communications ove
38、r 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
39、be implemented for existing or future missions. ISO 21459:2015(E) ISO 2015 All rights reservedBS ISO 21459:2015CCSDS RECOMMENDED STANDARD FOR PROXIMITY-1 SPACE LINK PROTOCOLCODING AND SYNCHRONIZATION SUBLAYER CCSDS 211.2-B-2 Page 1-2 December 2013 The Recommended Standard specified in this document
40、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 Recommended Standard is anticipated. Where mandatory capabilities are clearly indicated in sections of the Recommended Stand
41、ard, 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. 1.4 RATIONALE The CCSDS believes it is important to do
42、cument 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 is documented in the CCSDS Proximity-1 Space Link Gre
43、en Book (reference E1). 1.5 DOCUMENT STRUCTURE This document is divided into three numbered sections and four annexes: a) section 1 presents the purpose, scope, applicability and rationale of this Recommended Standard and lists the conventions, definitions, and references used throughout the documen
44、t; b) section 2 provides an overview of Proximity-1 synchronization and channel coding; c) section 3 specifies convolutional coding; d) annex A contains the Protocol Implementation Conformance Statement (PICS) proforma for this specification; e) annex B defines the service provided to the users; f)
45、annex C defines CRC-32 Coding Procedure; g) annex D discusses security, SANA, and patent considerations; h) annex E contains informative references; i) annex F contains a list of abbreviations and acronyms. ISO 21459:2015(E) ISO 2015 All rights reservedBS ISO 21459:2015CCSDS RECOMMENDED STANDARD FOR
46、 PROXIMITY-1 SPACE LINK PROTOCOLCODING AND SYNCHRONIZATION SUBLAYER CCSDS 211.2-B-2 Page 1-3 December 2013 1.6 CONVENTIONS AND DEFINITIONS 1.6.1 DEFINITIONS 1.6.1.1 Terms from the Open Systems Interconnection (OSI) Basic Reference Model This Recommended Standard makes use of a number of terms define
47、d in reference 1. In this Recommended Standard those terms are used 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) Data Link Layer;
48、b) Physical Layer; c) protocol data unit; d) real system; e) service; f) service data unit. 1.6.1.2 Terms Defined in This Recommended Standard For the purposes of this Recommended Standard, the following definitions also apply. Many other terms that pertain to specific items are defined in the appro
49、priate sections. forward link: That portion of a Proximity space link in which the caller transmits and the responder receives (typically a command link). physical channel: The RF channel upon which the stream of channel symbols is transferred over a space link in a single direction. PLTU: Proximity Link Transmission Unit, the data unit composed of the Attached Synchronization Marker, the Version-3 Transfer Frame, and the attached Cyclic Redundancy Check (CRC)-32. Proximi
