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GB/T 42040-2022: Space data and information transfer systems - Unified space data link protocol
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Space data and information transfer systems - Unified space data link protocol
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GB/T 42040-2022
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Basic data | Standard ID | GB/T 42040-2022 (GB/T42040-2022) | | Description (Translated English) | Space data and information transfer systems - Unified space data link protocol | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | V75 | | Classification of International Standard | 49.140 | | Word Count Estimation | 66,624 | | Date of Issue | 2022-10-12 | | Date of Implementation | 2022-10-12 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 42040-2022: Space data and information transfer systems - Unified 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 transfer systems - Unified space data link protocol
ICS 49.140
CCSV75
National Standards of People's Republic of China
Space Data and Information Transmission System
Unified Space Data Link Protocol
Released on 2022-10-12
2022-10-12 implementation
State Administration for Market Regulation
Released by the National Standardization Management Committee
table of contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Abbreviations 1
5 Protocol Overview 3
5.1 Related concepts 3
5.2 Business Overview 6
5.3 Function 10
6 business 12
6.1 Business data unit 12
6.2 Multiple Access Point Package Service 14
6.3 Multiple Access Point Access Service 15
6.4 Multiple access point byte stream service 17
6.5 Main channel operation control domain business 18
6.6 Virtual Channel Frame Service 19
6.7 Main channel frame service 20
6.8 Insert business 21
6.9 Communication operation procedure management business 22
7 Data unit format 23
7.1 Bit number convention 23
7.2 Uniform space data link protocol transmission frame 23
7.3 Transmission frame leading header 24
7.4 Transmission frame insertion field 27
7.5 Transmission frame data field 27
7.6 Operating the Control Domain 31
7.7 Frame error control field 31
8 Protocol Process 32
8.1 Sender protocol process 32
8.2 Receiver Protocol Process 39
9 Management parameters 46
9.1 General 46
9.2 Physical channel management parameters 47
9.3 Main channel management parameters 47
9.4 Virtual channel management parameters 48
9.5 MAP Channel Management Parameters 48
9.6 Packet transmission management parameters 49
10 Space Data Link Security Protocol 49
10.1 General requirements 49
10.2 Space data link security protocol format 49
10.3 Space data link security protocol process 51
10.4 Management parameters with spatial data link security 52
10.5 Management of space data link security services 53
Appendix A (Normative) Truncated Transport Frame Protocol Data Unit 54
Appendix B (informative) Frame randomization implementation for idle data transmission only 57
Appendix C (Normative) CRC-16 Frame Error Control Field Coding Process 58
Figure 1 Hierarchical relationship between the USLP protocol and the OSI reference model 3
Figure 2 Relationship between various channels5
Figure 3 Asynchronous business model 7
Figure 4 Synchronous business model 8
Figure 5 The internal organization and process of the protocol entity at the sending end10
Figure 6 The internal organization and process of the protocol entity at the receiving end11
Figure 7 USLP protocol channel tree 11
Figure 8 Conventions of bit numbers 23
Figure 9 USLP transmission frame composition structure 24
Figure 10 Master header format of complete transmission frame 24
Figure 11 Transport Frame Data Field (TFDF) 28
Figure 12 Format of Transport Frame Data Field (TFDF) header28
Figure 13 MAPP processing function abstract model of fixed-length TFDF32
Figure 14 MAPP processing function abstract model of variable-length TFDF33
Figure 15 MAPA_SDU generation function abstract model of fixed-length TFDF34
Figure 16 MAPA_SDU generation function abstract model of variable length TFDF34
Figure 17 MAP byte stream processing function abstract model 35
Figure 18 MAP multiplexing function abstract model 35
Figure 19 Virtual channel generation function abstract model 36
Figure 20 Abstract model of virtual channel multiplexing function 37
Figure 21 Abstract model of main channel generation function 37
Figure 22 Abstract model of main channel multiplexing function 38
Figure 23 Abstract model of full frame generation function 39
Figure 24 Abstract model of full frame reception function 40
Figure 25 Abstract model of main channel demultiplexing function 41
Figure 26 Abstract model of main channel receiving function 41
Figure 27 Abstract model of virtual channel demultiplexing function 42
Figure 28 Abstract model of virtual channel reception function 43
Figure 29 Abstract model of MAP demultiplexing function 43
Figure 30 Abstract model of MAP byte stream extraction function 44
Figure 31 Abstract model of MAPA_SDU extraction function of fixed-length TFDF 44
Figure 32 Abstract model of MAPA_SDU extraction function of variable length TFDF 45
Figure 33 Abstract model of MAPP extraction function for fixed-length TFDF 46
Figure 34 Abstract model of MAPP extraction function of variable-length TFDF 46
Figure 35 Comparison of frame structure without SDLS and transmission frame with SDLS 50
Figure A.1 USLP truncated transport frame without SDLS 54
Figure A.2 USLP with SDLS truncated transport frame 55
Figure A.3 Truncated transport frame leading header 55
Figure B.1 OID data generation logic block diagram (Fibonacci form) 57
Figure B.2 OID data generation logic block diagram (Galois form) 57
Figure C.1 16-bit frame error control coding logic diagram 58
Figure C.2 16-bit frame error control decoding logic diagram 59
Table 1 Services provided by the USLP agreement8
Table 2 Combination interpretation of bypass/sequence control flag and protocol control command flag 26
Table 3 Explanation of VCF count length 27
Table 4 TFDZ construction rules 29
Table 5 Physical channel management parameters and their descriptions 47
Table 6 Main channel management parameters and their description 47
Table 7 Virtual channel management parameters and their description 48
Table 8 MAP channel management parameters and their description 49
Table 9 Packet transmission management parameters and their description 49
Table 10 Virtual channel management parameters added to support SDLS and their descriptions 52
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.
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 is drafted by. Beijing Space Vehicle Overall Design Department, Tsinghua University, China Aerospace Standardization Institute, Beijing Tracking and Communication
Technology Research Institute, Xidian University, Beijing University of Posts and Telecommunications, Beijing Remote Sensing Equipment Research Institute, CTI Testing and Certification Group Co., Ltd.
Division, Guangzhou Jingwei Standard Technology Service Co., Ltd., Zhongshan Pauway Testing Technology Co., Ltd., Guangdong Ruizhou Technology Co., Ltd.
The main drafters of this document. He Xiongwen, Li Jionghui, Li Wenjuan, Xu Mingwei, Zhu Shunjie, Zhou Yuxia, Huang Lei, Dong Fang, Gao Jian, Jia Weisong,
Li Hongyan, Gu Rentao, Fang Yue, Tian Lin, Huang Kewu, Ren Liang, Zhan Panpan, Yu Huan, Liu Chao, Yang Yixuan, Li Xiaoguang, Yan Dong, Zhang Wei, Jiang Qingfu,
Yuan Xin, Jin Feng, Tan Zhongke, Du Zhiyao, Guo Ruizhou.
Space Data and Information Transmission System
Unified Space Data Link Protocol
1 Scope
This document specifies the business, data unit format,
Protocol flow, management parameters, and support for space data link security protocols.
This document is applicable to data communication from spacecraft to ground, from ground to spacecraft, and between spacecraft using the unified space data link protocol.
According to the link layer data transmission service.
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 39344-2020 Communication Operation Procedures for Spatial Data and Information Transmission System-1
GB/T 39348-2020 Spatial data and information transmission system telemetry synchronization and channel coding
GB/T 39349-2020 Spatial data and information transmission system remote synchronization and channel coding
GB/T 39353-2020 Space Data and Information Transmission System Proximity Space Link Protocol Synchronization and Coding Sublayer
GB/T 42041 Terminology for Space Data and Information Transmission in Aerospace
3 Terms and Definitions
GB/T 2900.54, GB/T 42041 and the following terms and definitions apply to this document.
3.1
delimited delimited
Data has properties of known and finite length.
3.2
mission phase
A period of time in a space mission during which the mission process has specific objectives.
NOTE. The transition between two consecutive mission phases may cause interruption of communication services.
3.3
space link spacelink
A communication link between a spacecraft and the corresponding ground system or between two spacecraft.
NOTE. A space link consists of one or more unidirectional or bidirectional physical channels.
4 Abbreviations
The following abbreviations apply to this document.
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