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GB/T 39351-2020Space Data and Information Transmission System Telemetry Space Data Link Protocol (English PDF)

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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 39351-2020 (Space Data and Information Transmission System Telemetry Space Data Link Protocol) is available as an English-translated PDF.

GB/T 39351-2020 is the Chinese standard "Space Data and Information Transmission System Telemetry Space Data Link Protocol".

Its scope clause reads: This standard specifies the telemetry space data link protocol business, data unit format, protocol process, management parameters and support space data According to the protocol procedures of the link security protocol.

This standard applies to the transmission of telemetry data from spacecraft to earth station and between spacecraft and spacecraft. Its clauses include terms and definitions.

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Document preview — GB/T 39351-2020

National Standard of the People's Republic of China

Classification: V 75

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

Preface
1 Scope
2 Normative references
3 Terms and definitions
4 Abbreviations
5 Overview
5.1 Protocol concept
5.2 Business Overview
5.3 Function overview
6 Business
6.1 Overview
6.2 Business Data Unit
6.3 Virtual Channel Package (VCP) Service
6.4 Virtual Channel Access (VCA) Service
6.5 Virtual channel frame sub-header (VC_FSH) service
6.6 Virtual channel operation control domain (VC_OCF) business
6.7 Virtual Channel Frame (VCF) Service
6.8 Main channel frame sub-header (MC_FSH) service
6.9 Main channel operation control domain (MC_OCF) service
6.10 Main Channel Frame (MCF) Service
7 Data unit format
7.1 Convention of bit number
7.2 Telemetry transmission frame
7.3 Transmission frame leading header
7.4 Transmission frame sub-header
7.5 Transmission frame data field
7.6 Operation Control Domain
7.7 Frame Error Control Field
8 Agreement process
8.1 Sender protocol flow
8.2 Receiver protocol flow
9 Management parameters
9.1 Overview
9.2 Physical channel management parameters
9.3 Main channel management parameters
9.4 Virtual channel management parameters
9.5 Packet transmission management parameters
10 Support SDLS agreement
10.1 Overview
10.2 SDLS protocol format specification
10.3 SDLS protocol flow
10.4 SDLS management parameters
Appendix A (informative appendix) Structural changes of this standard compared with ISO 22645.2016
Appendix B (informative appendix) Technical differences between this standard and ISO 22645.2016 and the reasons

1 Scope

This standard specifies the telemetry space data link protocol business, data unit format, protocol process, management parameters and support space data

According to the protocol procedures of the link security protocol.

This standard applies to the transmission of telemetry data from spacecraft to earth station 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 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 (GB/T 2900.54-2002,

IEC 60050-713..1998, IDT)

3 Terms and definitions

The following terms and definitions defined in GB/T 2900.54 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.

3.2 Telemetry transmission frame

A protocol data unit oriented to the transmission process suitable for transmission of telemetry data.

Note. The telemetry transmission frame provides a data structure for the transmission package or custom data.

3.3 Virtual channel

A transmission control mechanism that enables multiple sources and multiple users to share the same physical channel. Through the unified distribution of the identification code of the transmission frame header, and

Implement dynamic management according to user needs and actual channel conditions, so that different user application data time-sharing alternately occupy physical channels, which is equivalent to a single

The channel is divided into multiple virtual branches.

3.4 Free data

Data that does not contain any information.

Note. The transmission of idle data is only to meet the needs of timing and synchronization. It is recommended to use a bit sequence between "1" and "0".

3.5 Free package

Load free data packets in the packet data field.

GB/T 43223 | GB/T 32453 | GB/T 39345 | GB/T 39344 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 81 pages — is available in the English PDF.

Referenced standards

Normative references

IEC 60050

Cited by

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