GB/T 39350-2020 English PDF

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GB/T 39350-2020: Space data and information transfer systems. TC (telecommand) space data link protocol
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Basic data

Standard ID: GB/T 39350-2020 (GB/T39350-2020)
Description (Translated English): Space data and information transfer systems. TC (telecommand) space data link protocol
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: V75
Classification of International Standard: 49.140
Word Count Estimation: 50,551
Date of Issue: 2020-11-19
Date of Implementation: 2021-06-01
Quoted Standard: GB/T 2900.54; GB/T 39349; GB/T 39351
Adopted Standard: ISO 22664-2016, MOD
Regulation (derived from): National Standard Announcement No. 26 of 2020
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration
Summary: This standard specifies the remote control space data link protocol business, data unit format, protocol flow, management parameters, and protocol procedures that support the space data link security protocol. This standard applies to remote data transmission from earth stations to spacecraft, and between spacecraft and spacecraft.

GB/T 39350-2020: Space data and information transfer systems. TC (telecommand) space data link protocol

---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.
(Space Data and Information Transmission System Remote Control Space Data Link Protocol) ICS 49.140 V75 National Standards of People's Republic of China Spatial data and information transmission system Remote Control Space Data Link Protocol 2020-11-19 released 2021-06-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Table of contents

Preface Ⅴ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Abbreviations 1 5 Overview 2 5.1 Protocol Concept 2 5.2 Business Overview 4 5.3 Function overview 6 6 Business Definition 9 6.1 Overview 9 6.2 Business Data Unit 9 6.3 Multiple Access Point Package (MAPP) Service 10 6.4 Virtual Channel Package (VCP) Service 11 6.5 Multiple Access Point Access (MAPA) Service 12 6.6 Virtual Channel Access (VCA) Service 13 6.7 Virtual Channel Frame (VCF) Service 14 6.8 Main Channel Frame (MCF) Service 15 6.9 Communication Operating Procedure (COP) Management Service 15 7 Protocol data unit format 16 7.1 Convention of bit number 16 7.2 Remote control transmission frame format 17 7.3 Communication Link Control Word (CLCW) 22 8 Agreement process 24 8.1 Sender protocol flow 24 8.2 Receiver protocol flow 30 9 Management parameters 36 9.1 Overview 36 9.2 Physical channel management parameters 36 9.3 Main channel management parameters 37 9.4 Virtual channel management parameters 37 9.5 MAP management parameters 38 9.6 Packet transfer management parameters 38 10 Support SDLS agreement 38 10.1 Overview 38 10.2 SDLS protocol format specification 39 10.3 The sender protocol flow with SDLS 40 10.4 Receiving end protocol flow with SDLS 41 10.5 Management parameters added by SDLS service 42 Appendix A (informative appendix) Structural changes of this standard compared with ISO 22664.2016 43 Appendix B (informative appendix) Technical differences between this standard and ISO 22664.2016 and the reasons 45 Figure 1 Correspondence between this agreement and the OSI model Figure 3 Figure 2 Relationship between channels 4 Figure 3 The internal composition of the sender protocol entity 7 Figure 4 The internal composition of the receiving end protocol entity 7 Figure 5 Remote control space data link protocol channel tree 8 Figure 6 Convention of digit serial number 17 Figure 7 Remote control transmission frame structure 17 Figure 8 Transmission frame leading header structure 18 Figure 9 Segment header format 20 Fig. 10 Frame error control coding logic block diagram 21 Figure 11 Block diagram of frame error control decoding logic 22 Figure 12 CLCW composition Figure 22 Figure 13 The abstract model of MAPP processing function 25 Figure 14 MAPP processing flow example 25 Figure 15 Abstract model of MAP generation function 26 Figure 16 MAP generation process example 26 Figure 17 Abstract model of MAP multiplexing function 27 Figure 18.Abstract model of virtual channel packet processing function 27 Figure 19 Example of virtual channel packet processing flow 28 Figure 20 Abstract model of virtual channel generation function 28 Figure 21 Abstract model of virtual channel multiplexing function 29 Figure 22 Abstract model of main channel multiplexing function 30 Figure 23 Abstract model of all frame generation functions 30 Figure 24 Abstract model of MAPP extraction function 31 Figure 25 Abstract model of MAP receiving function 31 Figure 26 Abstract model of MAP demultiplexing function 32 Figure 27 Abstract model of virtual channel packet extraction function 33 Figure 28 Abstract model of virtual channel receiving function 33 Figure 29 Abstract model of virtual channel demultiplexing function 34 Figure 30 Abstract model of main channel demultiplexing function 35 Figure 31 Abstract model of all frame receiving functions 35 Figure 32 Schematic diagram of the SDLS field of a class D transmission frame (with segment header) 39 Figure 33.Schematic diagram of the SDLS field of a Type D transmission frame (without segment header) 39 Table 1 Services provided by remote control space data link protocol 5 Table 2 Description of bypass and control command identification 18 Table 3 Meaning of sequence flags 20 Table 4 Physical channel management parameters 36 Table 5 Main channel management parameters 37 Table 6 Virtual channel management parameters 37 Table 7 MAP management parameters 38 Table 8 Management parameters of packet transmission 38 Table 9 Additional management parameters for virtual channels (without segment headers) using SDLS 42 Table 10 Additional management parameters of MAP using SDLS 42 Table A.1 Differences between this standard and ISO 22664.2016 chapter structure 43 Table B.1 Technical differences between this standard and ISO 22664.2016 and the reasons 45

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses the redrafting law to amend and adopt ISO 22664.2016 "Space Data and Information Transmission System Remote Control Space Data Link" Road Agreement. Compared with ISO 22664.2016, this standard has many structural adjustments. Appendix A lists the differences between this standard and ISO 22664.2016. A list of chapter number comparisons. Compared with ISO 22664.2016, this standard has technical differences, and the clauses involved in these differences have been passed in the margin position on the outer side of the standard. The vertical single line (︱) is marked, and a list of the corresponding technical differences and their reasons is given in Appendix B. This standard also made the following editorial changes. ---Deleted part of the references to the principle definition document structure in Chapter 1 of ISO 22664.2016; --- Changed Appendix A "Abbreviations" in ISO 22664.2016 to Chapter 4 of the main text; ---The informative appendix B "References" of ISO 22664.2016 is deleted. This standard was proposed and managed by the National Aerospace Technology and Application Standardization Technical Committee (SACTC425). Drafting organizations of this standard. China Aerospace Standardization Institute, Beijing Space Vehicle General Design Department, Anhui Deqi Information Technology Co., Ltd. Division, Beijing Institute of Telemetry Technology, Beijing Institute of Tracking and Communication Technology. The main drafters of this standard. Wang Weijia, Yu Minfang, Guo Jia, Zhou Yuxia, Chen Fei, Liu Zhenjie, Zhang Liping, Yang Keyuan, Jiang Shuai. Spatial data and information transmission system Remote Control Space Data Link Protocol

1 Scope

This standard specifies the business, data unit format, protocol process, management parameters, and support space data of the remote control space data link protocol. According to the protocol procedures of the link security protocol. This standard applies to remote data transmission from earth stations to spacecraft, and between spacecraft and spacecraft.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For undated references, the latest version (including all amendments) applies to this document. GB/T 2900.54 Electrotechnical terminology radio communication. transmitter, receiver, network and operation (GB/T 2900.54-2002, IEC 60050-713.1998, IDT) GB/T 39349 Spatial data and information transmission system remote synchronization and channel coding (GB/T 39349-2020, ISO 22642.2012, MOD) GB/T 39351 Spatial Data and Information Transmission System Telemetry Spatial Data Link Protocol (GB/T 39351-2020, ISO 22645.2016, MOD)

3 Terms and definitions

The following terms and definitions defined in GB/T 2900.54 and GB/T 39351 apply to this document. 3.1 package A basic data unit composed of application data plus packet header. Note. Packet service transmission via virtual channel or multiple access points. 3.2 Remote transmission frame A protocol data unit oriented to the transmission process suitable for transmitting remote control data. Note. The remote control transmission frame provides a data structure for the transmission package or custom data.

4 Abbreviations

The following abbreviations apply to this document. CCSDS. Spatial Data System Advisory Committee CLCW. Communication link control word COP. Communication operating procedures CRC. Cyclic Redundancy Check FARM. Frame acceptance and reporting mechanism ......

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