1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 22671:2011Space data and informationtransfer systems Spacelink extension (SLE) Forward communications linktransmission unit (CLTU) serviceBS ISO 22671:2011 BRITISH STANDAR
2、DNational forewordThis British Standard is the UK implementation of ISO 22671:2011. Itsupersedes BS ISO 22671:2007 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/68/-/7, Space systems and operations - Space dataand information transfer systems.A li
3、st of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 74387 0ICS 49.140Compliance with a British Sta
4、ndard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 November 2011.Amendments issued since publicationDate Text affectedBS ISO 22671:2011Reference numberISO 22671:2011(E)ISO 2011INTERNATIONAL ST
5、ANDARD ISO22671Third edition2011-11-15Space data and information transfer systems Space link extension (SLE) Forward communications link transmission unit (CLTU) service Systmes de transfert des informations et donnes spatiales Extension de liaisons spatiales (SLE) Service de lunit de transmission p
6、our la liaison denvoi de tlcommande (CLTU) BS ISO 22671:2011ISO 22671:2011(E) COPYRIGHT PROTECTED DOCUMENT ISO 2011 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
7、 and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland
8、 ii ISO 2011 All rights reservedBS ISO 22671:2011ISO 22671:2011(E) ISO 2011 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 c
9、arried 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 wor
10、k. 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 Inter
11、national 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 th
12、e 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 22671 was prepared by the Consultative Committee for Space Data Systems (CCSDS) as CCSDS 912.1-B-3, July 2010 and was adopted without modifications ex
13、cept 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. This third edition cancels and replaces the second edition (ISO 22671:2007), which has been technically revised
14、. BS ISO 22671:2011BS ISO 22671:2011INTERNATIONAL STANDARD ISO 22671:2011(E) ISO 2011 All rights reserved 1Space data and information transfer systems Space link extension (SLE) Forward communications link transmission unit (CLTU) service 1 Scope 1.1 This International Standard defines the Communica
15、tions Link Transmission Unit (CLTU) service in conformance with the transfer services specified in CCSDS 910.4-B-2 (equivalent to ISO 15396). The Forward CLTU service is a Space Link Extension (SLE) transfer service that enables a mission to send Communications Link Transmission Units (CLTUs) to a s
16、pacecraft. 1.2 This International Standard defines, in an abstract manner, the Forward CLTU service in terms of a) the operations necessary to provide the transfer service, b) the parameter data associated with each operation, c) the behaviors that result from the invocation of each operation, and d
17、) the relationship between, and the valid sequence of, the operations and resulting behaviors. 1.3 It does not specify a) individual implementations or products, b) the implementation of entities or interfaces within real systems, c) the methods or technologies required to radiate data to a spacecra
18、ft and to acquire telemetry frames from the signals received from that spacecraft for extraction of the Operational Control Field, d) the methods or technologies required for communications, or e) the management activities necessary to schedule, configure, and control the Forward CLTU service. 1.4 T
19、he scope and field of application are furthermore detailed in subclause 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 912
20、.1-B-3, July 2010, Space link extension Forward CLTU service specification. For the purposes of international standardization, the modifications outlined below shall apply to the specific clauses and paragraphs of publication CCSDS 912.1-B-3. BS ISO 22671:2011ISO 22671:2011(E) 2 ISO 2011 All rights
21、reservedPages i to vi This part is information which is relevant to the CCSDS publication only. Page 1-12 Add the following information to the reference indicated: 1 Document CCSDS 910.4-B-2, October 2005, is equivalent to ISO 15396:2007. 2 Document CCSDS 231.0-B-1, September 2003, is equivalent to
22、ISO 22642:2005. 3 Document CCSDS 232.0-B-1, September 2003, is equivalent to ISO 22664:2005. 4 Document CCSDS 232.1-B-1, September 2003, is equivalent to ISO 22667:2005. 5 Document CCSDS 301.0-B-3, January 2002, is equivalent to ISO 11104:2003. 6 ISO/IEC 8824-1:2002 has been cancelled and withdrawn.
23、 It has been replaced by ISO/IEC 8824-1:2008, Information technology Abstract Syntax Notation One (ASN.1): Specification of basic notation. Page G-1 Add the following information to the reference indicated: G4 Document CCSDS 201.0-B-3, June 2000, is equivalent to ISO 12171:2002. G5 Document CCSDS 20
24、2.0-B-3, June 2001, is equivalent to ISO 12172:2003. G6 Document CCSDS 202.1-B-2, June 2001, is equivalent to ISO 12173:2003. G7 Document CCSDS 203.0-B-2, June 2001, is equivalent to ISO 12174:2003. 3 Revision of publication CCSDS 912.1-B-3 It has been agreed with the Consultative Committee for Spac
25、e Data Systems that Subcommittee ISO/TC 20/SC 13 will be consulted in the event of any revision or amendment of publication CCSDS 912.1-B-3. To this end, NASA will act as a liaison body between CCSDS and ISO. BS ISO 22671:2011ISO 22671:2011(E) ISO 2011 All rights reserved 3Recommendation for Space D
26、ata System Standards SPACE LINK EXTENSIONFORWARD CLTU SERVICE SPECIFICATION RECOMMENDED STANDARD CCSDS 912.1-B-3 BLUE BOOK July 2010 BS ISO 22671:2011ISO 22671:2011(E) 4 ISO 2011 All rights reserved(Blank page) BS ISO 22671:2011ISO 22671:2011(E) ISO 2011 All rights reserved 5CCSDS RECOMMENDED STANDA
27、RD FOR SLE FCLTU SERVICE CCSDS 912.1-B-3 Page i July 2010 AUTHORITY Issue: Recommended Standard, Issue 3 Date: July 2010 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 represents
28、 the consensus technical agreement of the participating CCSDS Member Agencies. The procedure for review and authorization of CCSDS documents is detailed in the Procedures Manual for the Consultative Committee for Space Data Systems, and the record of Agency participation in the authorization of this
29、 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 BS ISO 22671:2011ISO 22671
30、:2011(E) 6 ISO 2011 All rights reservedCCSDS RECOMMENDED STANDARD FOR SLE FCLTU SERVICE CCSDS 912.1-B-3 Page ii July 2010 STATEMENT OF INTENT The Consultative Committee for Space Data Systems (CCSDS) is an organization officially established by the management of its members. The Committee meets peri
31、odically 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 Recommended Standards and are not considered bindin
32、g 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 understandings: o Whenever a member establishes a CCSDS-related standard, this standard
33、 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 provide other CCSDS members with the following information: - The standard
34、 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 nor any ensuing standard is a substitute for a memorandum of agreement. No
35、 later than five 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 technologies, new requirements, or new directions; or (3) be retired or canceled.
36、 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 member to determine when such standards or implementations are to be modified
37、. Each member is, however, strongly encouraged to direct planning for its new standards and implementations towards the later version of the Recommended Standard. BS ISO 22671:2011ISO 22671:2011(E) ISO 2011 All rights reserved 7CCSDS RECOMMENDED STANDARD FOR SLE FCLTU SERVICE CCSDS 912.1-B-3 Page ii
38、i July 2010 FOREWORD 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 in the Procedures Manual for
39、 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. BS ISO 226
40、71:2011ISO 22671:2011(E) 8 ISO 2011 All rights reservedCCSDS RECOMMENDED STANDARD FOR SLE FCLTU SERVICE CCSDS 912.1-B-3 Page iv July 2010 At time of publication, the active Member and Observer Agencies of the CCSDS were: Agenzia Spaziale Italiana (ASI)/Italy. Member Agencies Canadian Space Agency (C
41、SA)/Canada. Centre National dEtudes Spatiales (CNES)/France. China National Space Administration (CNSA)/Peoples Republic of China. Deutsches Zentrum fr Luft- und Raumfahrt e.V. (DLR)/Germany. European Space Agency (ESA)/Europe. Instituto Nacional de Pesquisas Espaciais (INPE)/Brazil. Japan Aerospace
42、 Exploration Agency (JAXA)/Japan. National Aeronautics and Space Administration (NASA)/USA. Russian Federal Space Agency (RFSA)/Russian Federation. UK Space Agency/United Kingdom. Austrian Space Agency (ASA)/Austria. Observer Agencies Belgian Federal Science Policy Office (BFSPO)/Belgium. Central Re
43、search Institute of Machine Building (TsNIIMash)/Russian Federation. China Satellite Launch and Tracking Control General, Beijing Institute of Tracking and Telecommunications Technology (CLTC/BITTT)/China. Chinese Academy of Sciences (CAS)/China. Chinese Academy of Space Technology (CAST)/China. Com
44、monwealth Scientific and Industrial Research Organization (CSIRO)/Australia. CSIR Satellite Applications Centre (CSIR)/Republic of South Africa. Danish National Space Center (DNSC)/Denmark. Departamento de Cincia e Tecnologia Aeroespacial (DCTA)/Brazil. European Organization for the Exploitation of
45、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)/India. Institute of
46、 Space Research (IKI)/Russian Federation. KFKI Research Institute for Particle b) the parameter data associated with each operation; c) the behaviors that result from the invocation of each operation; and d) the relationship between, and the valid sequence of, the operations and resulting behaviors.
47、 It does not specify: a) individual implementations or products; b) the implementation of entities or interfaces within real systems; c) the methods or technologies required to radiate data to a spacecraft and to acquire telemetry frames from the signals received from that spacecraft for extraction
48、of the Operational Control Field; d) the methods or technologies required for communications; or e) the management activities necessary to schedule, configure, and control the Forward CLTU service. 1.3 APPLICABILITY 1.3.1 APPLICABILITY OF THIS RECOMMENDED STANDARD This Recommended Standard provides
49、a basis for the development of real systems that implement the Forward CLTU service. Implementation of the Forward CLTU service in a real system additionally requires the availability of a communications service to convey invocations and returns of Forward CLTU service operations between service users and BS ISO 22671:2011ISO 22671:2011(E) 16 ISO 2011 All rights reservedCCSDS RECOMMENDED STANDARD FOR SLE FCLTU SERVICE CCSDS 912.1-B-
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