Partners save 15% on every standard

Valid

GB/T 39345-2020Space data and information transfer systems. AOS(advanced orbiting systems) space data link protocol (English PDF)

Also coversGBT39345-2020

Open the GB/T 39345-2020 preview as PDF

Preview — first pages of GB/T 39345-2020

This is a limited preview

Buy now to download the full PDF

Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

November 19, 2020

Implementation date

June 1, 2021

Scope

GB/T 39345-2020 (Space data and information transfer systems. AOS(advanced orbiting systems) space data link protocol) is available as an English-translated PDF.

GB/T 39345-2020 — This standard specifies the business, data unit format, protocol process, and management parameters of the Advanced On-Orbit System (AOS) spatial data link protocol And the protocol provisions supporting the security of the spatial data link. This standard applies to the number of data link layers for space-to-ground and air-to-air communications using advanced on-orbit system space data link protocols According to transmission business.

Document preview — GB/T 39345-2020

National Standard of the People's Republic of China

ICS: 49.140
Classification: V 75

Issued by: State Administration for Market Regulation, China National Standardization Administration

1 Scope1
2 Normative references1
3 Terms and definitions1
4 Abbreviations1
5 Protocol overview2
5.1 Related concepts2
5.2 Business Overview4
5.3 Function overview7
6 Business10
6.1 Overview10
6.2 Business Data Unit10
6.3 Virtual Channel Package (VCP) Service11
6.4 Bitstream business12
6.5 Virtual Channel Access (VCA) Service13
6.6 Virtual channel operation control domain (VC_OCF) business14
6.7 Virtual Channel Frame (VCF) Service14
6.8 Main Channel Frame (MCF) Service15
6.9 Insert business16
7 Data unit format17
7.1 Convention of bit number17
7.2 AOS transport frame17
7.3 Transmission frame leading header18
7.4 Transmission frame insertion field20
7.5 Transmission frame data field20
7.6 Operation Control Domain23
7.7 Frame Error Control Field23
8 Agreement process25
8.1 Sender protocol flow25
8.2 Receiver protocol flow29
9 Management parameters33
9.1 Overview33
9.2 Physical channel management parameters33
9.3 Main channel management parameters34
9.4 Virtual channel management parameters34
9.5 Packet transmission management parameters34
10 Protocols and regulations supporting space data link security35
10.1 Overview35
10.2 SDLS protocol format specification35
10.3 Data link security protocol flow37
10.4 Management of data link security services38
Appendix A (informative appendix) Structural changes of this standard compared with ISO 22666.201639
Appendix B (informative appendix) The technical differences between this standard and ISO 22666.2016 and the reasons41
Figure 1 The hierarchical relationship between AOS spatial data link protocol and OSI3
Figure 2 Relationship between channels4
Figure 3 Asynchronous business model5
Figure 4 Synchronous business model6
Figure 5 The internal composition of the sender protocol entity8
Figure 6 The internal composition of the receiving end protocol entity9
Figure 7 AOS spatial data link protocol channel tree9
Figure 8 The convention of the serial number17
Figure 9 AOS transmission frame composition structure18
Figure 10 Transmission frame leading header18
Figure 11 M_PDU format21
Figure 12 B_PDU format22
Figure 13 Frame error control coding logic Figure24
Figure 14 Frame error control decoding logic diagram25
Figure 15 Packet processing function abstract model26
Figure 16 Abstract Model of Bit Stream Processing Function26
Figure 17.Abstract model of virtual channel generation function27
Figure 18 Virtual channel multiplexing function abstract model28
Figure 19 The abstract model of the main channel multiplexing function28
Figure 20 The abstract model of all frame generation functions29
Figure 21 Abstract model of all frame receiving functions30
Figure 22.Main channel demultiplexing function abstract model30
Figure 23 Abstract model of virtual channel demultiplexing function31
Figure 24 Abstract model of virtual channel receiving function32
Figure 25 Abstract model of bit stream extraction function32
Figure 26 Abstract model of package extraction function33
Figure 27 Comparison of frame without SDLS and frame with SDLS36
Table 1 Services provided by AOS spatial data link protocol6
Table 2 Physical channel management parameters33
Table 3 Main channel management parameters34
Table 4 Virtual channel management parameters34
Table 5 Packet transmission management parameters35
Table A.1 The comparison between this standard and ISO 22666.2016 chapter number39
Table B.1 Technical differences between this standard and ISO 22666.2016 and their reasons41

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 22666.2016 "Space Data and Information Transmission System Advanced On-orbit System".

Inter-Data Link Protocol.

Compared with ISO 22666.2016, this standard has many structural adjustments. Appendix A lists this standard and ISO 22666.2016

The chapter number comparison list.

Compared with ISO 22666.2016, this standard has technical differences, and the clauses involved in these differences have been passed on the outer margins.

The vertical single line (︱) is marked, and the corresponding technical differences and their reasons are listed in Appendix B.

This standard also made the following editorial changes.

--- Deleted part of the document structure and references in Chapter 1 of ISO 22666.2016;

--- Changed Appendix A "Abbreviations" in ISO 22666.2016 to Chapter 4 of the main text;

---The informative appendix B "References" of ISO 22666.2016 was deleted.

This standard was proposed and managed by the National Aerospace Technology and Application Standardization Technical Committee (SAC/TC425).

Drafting organizations of this standard. Beijing Space Vehicle General Design Department, Nan'an Zhongji Institute of Standardization Co., Ltd., China Aerospace Standards

Chemical Research Institute, Xi'an Space Radio Technology Research Institute.

1 Scope

This standard specifies the business, data unit format, protocol process, and management parameters of the Advanced On-Orbit System (AOS) spatial data link protocol

And the protocol provisions supporting the security of the spatial data link.

This standard applies to the number of data link layers for space-to-ground and air-to-air communications using advanced on-orbit system space data link protocols

According to transmission business.

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 article

Pieces. 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

ISO 10537.2016 Spatial Data and Information Transmission System Packaging Business

ISO 22646.2005 Space Data and Information Transmission System Space Packet Protocol

3 Terms and definitions

The following terms and definitions defined in GB/T 2900.54 apply to this document.

3.1

Delimitation

The data has a known and finite length characteristic.

3.2

Mission phase

A period of time of a space mission, during which the mission process has a specific goal.

3.3

Space link

A communication link between a spacecraft and the corresponding ground system or between two spacecraft.

Note. A space link contains one or more unidirectional or bidirectional physical channels.

4 Abbreviations

The following abbreviations apply to this document.

AOS. Advanced on-orbit system

B_PDU. bit stream protocol data unit

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 2900.54 · ISO 10537.2016 · ISO 22646.2005

How to Buy GB/T 39345-2020

1Add to cart. Click the "Buy GB/T 39345-2020" button on this page. You can add more standards before checkout.
2Checkout. Enter your email and billing details. Payment is processed securely by Stripe (cards, Apple Pay, Google Pay supported).
3Instant delivery (0–9 sec). Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4Invoice included. A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.