1、 ISO 2016 Space data and information transfer systems Licklider transmission protocol (L TP) for CCSDS Donnes spatiales et systmes de transfert dinformation - Protocol de transmission Licklider (L TP) pour CCSDS INTERNATIONAL STANDARD ISO 21080 First edition 2016-07-01 Reference number ISO 21080:201
2、6(E) ISO 21080:2016(E)ii ISO 2016 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in Switzerland All 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
3、photocopying, or posting on the internet or an intranet, without 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 office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +
4、41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.orgISO 21080:2016(E) ISO 2016 All rights reserved iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standa
5、rds 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 tak
6、e part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In pa
7、rticular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/ IEC Directives, Part 2. www.iso.org/directives Attention is drawn to the possibility that some of the elements of thi
8、s document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received. www.iso.
9、org/patents Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO
10、principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information ISO 21080 was prepared by the Consultative Committee for Space Data Systems (CCSDS) (as CCSDS 734.1-B-1, May 2015) and was adopted (without modifications except those stated in clause 2 of
11、 this International Standard) by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 13, Space data and information transfer systems. DEDICATION This book is dedicated to Adrian Hooke, whose end-to-end sensibilities and tireless advocacy for standardization of space data syst
12、ems directly contributed to the formation of the Consultative Committee for Space Data Systems in 1982. His unique combination of technical skill, management abilities, and vision served CCSDS well for over 30 years. During that time CCSDS solidified the standardization of Physical and Data Link Lay
13、er protocols, and developed standards and technologies that had important and wide-ranging impacts in both the space and terrestrial communications industries. In the late 1990s, Adrian envisioned a new era for space communications leveraging a confluence of terrestrial internetworking and space-bas
14、ed data transport technologies. This led to the development of a concept that has come to be known as the Solar System Internetwork (SSI), of which the Licklider Transmission Protocol described here is a part. Adrian will be missed, by CCSDS for the scope of his technical contributions and his leade
15、rship, and by his colleagues and friends for the greatness of his spirit and his wit. But his legacy to the space community remains. CCSDS will continue to provide useful and innovative solutions to space communication challenges so that Adrians vision of an interoperable, standards-based communicat
16、ion system that reduces mission development time, cost, and risk will eventually be realized. ISO 21080:2016(E) ISO 2016 All rights reservedCCSDS RECOMMENDED STANDARD FOR LICKLIDER TRANSMISSION PROTOCOL CCSDS 734.1-B-1 Page i May 2015 AUTHORITY Issue: Recommended Standard, Issue 1 Date: May 2015 Loc
17、ation: 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 the consensus technical agreement of the participating CCSDS Member Agencies. The procedure for review and authorization of
18、 CCSDS documents is detailed in Organization and Processes for the Consultative Committee for Space Data Systems (CCSDS A02.1-Y-4), and the record of Agency participation in the authorization of this document can be obtained from the CCSDS Secretariat at the e-mail address below. This document is pu
19、blished and maintained by: CCSDS Secretariat National Aeronautics and Space Administration Washington, DC, USA E-mail: secretariatmailman.ccsds.org ISO 21080:2016(E) ISO 2016 All rights reservedCCSDS RECOMMENDED STANDARD FOR LICKLIDER TRANSMISSION PROTOCOL CCSDS 734.1-B-1 Page ii May 2015 STATEMENT
20、OF INTENT The Consultative Committee for Space Data Systems (CCSDS) is an organization officially 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 p
21、roblems. Inasmuch as participation in the CCSDS is completely voluntary, the results of Committee 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 Rec
22、ommendation is entirely voluntary. Endorsement, however, indicates the following understandings: 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 m
23、ember may develop. o Whenever a member establishes a CCSDS-related standard, that member will 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 ser
24、vice 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 later than five years from its date of issuance, this Recommended Standard will be reviewed by the CCSDS to determine whether it sh
25、ould: (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 Recommended Standard is issued, existing CCSDS-related member standards and implementati
26、ons 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. Each member is, however, strongly encouraged to direct planning for its new standards and implementations towards the later versio
27、n of the Recommended Standard. ISO 21080:2016(E) ISO 2016 All rights reservedCCSDS RECOMMENDED STANDARD FOR LICKLIDER TRANSMISSION PROTOCOL CCSDS 734.1-B-1 Page iii May 2015 FOREWORD Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.
28、 CCSDS has processes for identifying patent issues and for securing from the patent holder agreement that all licensing policies are reasonable and non- discriminatory. However, CCSDS does not have a patent law staff, and CCSDS shall not be held responsible for identifying any or all such patent rig
29、hts. 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 Organization and Processes for the Consul
30、tative Committee for Space Data Systems (CCSDS A02.1-Y-4). 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 sent to the CCSDS Secretariat at the e-mail address indicated on page i. I
31、SO 21080:2016(E) ISO 2016 All rights reservedCCSDS RECOMMENDED STANDARD FOR LICKLIDER TRANSMISSION PROTOCOL CCSDS 734.1-B-1 Page iv May 2015 At time of publication, the active Member and Observer Agencies of the CCSDS were: Member Agencies Agenzia Spaziale Italiana (ASI)/Italy. Canadian Space Agency
32、 (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 Space Agency (ESA)/Europe. Federal Space Agency (FSA)/Russian Federation. Instituto Nacional de Pesqu
33、isas 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 Agency (ASA)/Austria. Belgian Federal Science Policy Office (BFSPO)/Belgium. Central Research Inst
34、itute 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. Commonwealth S
35、cientific and Industrial Research Organization (CSIRO)/Australia. Danish National Space Center (DNSC)/Denmark. Departamento de Cincia e Tecnologia Aeroespacial (DCTA)/Brazil. Electronics and Telecommunications Research Institute (ETRI)/Korea. European Organization for the Exploitation of Meteorologi
36、cal 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 Space Rese
37、arch (IKI)/Russian Federation. KFKI Research Institute for Particle CCSDS conventional packet telemetry. For space data links, LTP will typically be deployed over a CCSDS data link that supports CCSDS Encapsulation Packets so that one LTP segment can be encapsulated in a single Encapsulation Packet.
38、 LTP may also operate over a wide variety of ground-network services including those specified by the CCSDS for cross-support purposes. 1.3 ORGANIZATION OF THE DOCUMENT This Recommended Standard is organized as follows: a) Section 2 contains a descriptive overview of LTP operation as well as a brief
39、 history of the protocols heritage. Users not already familiar with LTP may want to start with this section. b) Section 3 contains a profile of RFC 5326 (reference 3) for use by CCSDS. c) Section 4 contains the abstract service specification for LTP. d) Section 5 specifies the services that LTP requ
40、ires from the underlying system. e) Section 6 contains conformance requirements for the CCSDS profile of LTP. f) Section 7 defines a client operations service that allows multiple layer-(N+1) SDUs to be aggregated into a single LTP block in order to improve efficiency. g) Annex A contains the Protocol Implementation Conformance Statement (PICS) proforma. h) Annex B specifies how to layer LTP over the CCSDS Space Packet Service or the CCSDS Encapsulation Service. i) Annex C contains the Management Information Base (MIB) for the protocol. ISO 21080:2016(E) ISO 2016 All rights reserved
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