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GB/T 42649-2023 English PDF

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US$1019.00 · In stock
Delivery: <= 7 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 42649-2023: Space data and information transfer systems - Licklider transmission protocol(LTP)
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 42649-2023	1019	Add to Cart	7 days	Space data and information transfer systems - Licklider transmission protocol(LTP)	Valid

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Basic data

Standard ID: GB/T 42649-2023 (GB/T42649-2023)
Description (Translated English): Space data and information transfer systems - Licklider transmission protocol(LTP)
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: V75
Classification of International Standard: 49.140
Word Count Estimation: 50,598
Date of Issue: 2023-05-23
Date of Implementation: 2023-09-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 42649-2023: Space data and information transfer systems - Licklider transmission protocol(LTP)

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 49:140 CCSV75 National Standards of People's Republic of China Space Data and Information Transmission System Licklider Transfer Protocol (LTP) Released on 2023-05-23 2023-09-01 Implementation State Administration for Market Regulation Released by the National Standardization Management Committee

Preface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Abbreviations 3 5 Protocol overview 4 5:1 General 4 5:2 Architecture elements 5 5:3 Services provided by the LTP protocol 5 6 General provisions of the LTP protocol 7 6:1 Paragraph 7 6:2 Client business request 13 6:3 Protocol internal processing flow 14 6:4 Client Service Notification 19 6:5 State Transition Diagram 21 6:6 LTP protocol security authentication 26 7 Supplementary provisions for the application of LTP protocol in space data and information transmission system 27 7:1 The LTP protocol runs on space links 27 7:2 The LTP protocol runs on top of the UDP protocol 27 7:3 Value range of LTP protocol field 27 7:4 Use of LTP Protocol Engine Identifiers in Space Missions 28 7:5 LTP Protocol Extensions in Space Missions 28 7:6 LTP protocol security 28 7:7 Business Data Aggregation 28 8 LTP protocol service interface 31 8:1 User interface 31 8:2 Primitives 31 8:3 Parameters 32 8:4 LTP Protocol Business Primitives 33 9 LTP protocol requirements for storage and lower layer communication 38 9:1 Requirements for reliable storage services 38 9:2 Requirements for lower layer communication services 38 10 Protocol Conformance Requirements 39 10:1 Basic requirements of the LTP protocol 39 10:2 Network management requirements 39 Appendix A (Normative) Using space packet or encapsulation packet service as the lower layer communication service of LTP protocol 40 Appendix B (Normative) LTP Protocol Management Information Base 41 Reference 43

foreword

This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting: This document refers to "ISO 21080:2016" Licklider transmission protocol for CCSDS in spatial data and information transmission system (LTP) "" drafted, the degree of consistency is non-equivalent: Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed and managed by the National Aerospace Technology and Its Application Standardization Technical Committee (SAC/TC425): This document was drafted by: Nanjing University, Beijing Institute of Tracking and Communication Technology, China Aerospace Standardization Institute, Harbin Institute of Technology (Shenzhen), Ningde Institute of Standardization Science and Technology, Pengcheng National Laboratory, Tsinghua University, Beijing Space Vehicle Overall Design Department, China National Space Science Center of Academy of Sciences, Xi'an Institute of Space Radio Technology, Nanjing University of Finance and Economics: The main drafters of this document: Zhao Kangyan, Hou Dongxu, Li Wenfeng, Chen Yunjun, Xu Dongyan, Zhou Yuxia, Zhang Qinyu, Wang Ye, Zhan Yafeng, He Xiongwen, Huang Yonghui, Huang Lei, Yang Zhihua, Liu Jun, Xu Changzhi, Jin Yi, Yan Hongcheng, Tang Yuehao, Fang Yuan, Lin Ying, Yang Guannan:

Introduction

To achieve interoperable communications in extreme and performance-challenged environments where continuous end-to-end connectivity cannot be achieved, the Internet Research Task Force Responsible for the research and design of network architecture and protocols: For space links with extremely long round-trip delays and frequent interruptions, Experimental Proposal": RFC5326 is the main protocol specification document of the LTP protocol: The Advisory Committee on Space Data Systems (CCSDS) formulated on the basis of RFC5326 in combination with the characteristics and requirements of space mission communications: ISO 21080:2016 "Licklider Transport Protocol (LTP Protocol) for CCSDS in Spatial Data and Information Transmission System": The standard The standards only focus on the technical adjustments and supplementary provisions of RFC5326: The LTP protocol cooperates with ISO 21323:2016 "Spatial Data Together with the bundle protocol in the Information Transmission System CCSDS Bundle Protocol Specification, it forms the core protocol of the space delay tolerant network: In order to ensure the integrity of the technical content, this document adopts non-equivalent adoption of ISO 21080:2016, focusing on reference and adding The content of the protocol specification in RFC5326 and RFC5327 improves the integrity of the technical content of the LTP protocol: Space Data and Information Transmission System Licklider Transport Protocol (LTP Protocol)

1 Scope

This document specifies the data unit format, protocol flow, business description, etc: of the Licklider Transport Protocol (hereinafter referred to as the LTP protocol): It provides supplementary regulations on the application of the LTP protocol in the space data and information transmission system, mainly including the lower layer communication protocol and business adaptation: Configuration, domain value range, business data aggregation, and protocol management information content, etc: This document is applicable to provide optional reliable data transmission over space links that are extended during communication and may be frequently interrupted:

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document: GB/T 2900:54 Electrotechnical term radiocommunication: transmitter, receiver, network and operation GB/T 17967 Information Technology Open System Interconnection Basic Reference Model OSI Service Definition Convention GB/T 42041-2022 Aerospace Terminology Space Data and Information Transmission

3 Terms and Definitions

The following terms and definitions defined in GB/T 2900:54, GB/T 17967 and GB/T 42041-2022 apply to this document: 3:1 Entity entity An active element within a subsystem that is the embodiment that defines a set of capabilities (excluding any additional capabilities in use) for a particular object: 3:2 Protocol data unit protocoldataunit; PDU The data structure specified by the protocol: Note: Contains protocol control information domain and user data domain: [Source: GB/T 42041-2022, 3:1:27] 3:3 Service data unit servicedataunit; SDU The user data field in the data structure specified by the protocol: [Source: GB/T 42041-2022, 3:1:28] 3:4 engine identifier engineID An integer that uniquely identifies a specific LTP protocol engine that belongs to a group of communicating LTP protocol engines: a closed set: Note: When the LTP protocol runs under the Delay Tolerant Network (DTN) bundle protocol (BP protocol), the distribution layer adapter between the BP protocol and the LTP protocol will be responsible (in an implementation-specific manner) for converting between DTN endpoint identifiers (EIDs) and LTP protocol engine identifiers: ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 42649-2023_English be delivered?

Answer: Upon your order, we will start to translate GB/T 42649-2023_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 7 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 42649-2023_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 42649-2023_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.