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GB/T 39351-2020 English PDF

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US$889.00 · In stock
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GB/T 39351-2020: (Space Data and Information Transmission System Telemetry Space Data Link Protocol)
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 39351-2020	889	Add to Cart	6 days	(Space Data and Information Transmission System Telemetry Space Data Link Protocol)	Valid

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Basic data

Standard ID: GB/T 39351-2020 (GB/T39351-2020)
Description (Translated English): (Space Data and Information Transmission System Telemetry Space Data Link Protocol)
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: V75
Word Count Estimation: 48,459
Date of Issue: 2020-11-19
Date of Implementation: 2021-06-01
Regulation (derived from): National Standard Announcement No. 26 of 2020
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 39351-2020: (Space Data and Information Transmission System Telemetry 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 Telemetry Space Data Link Protocol) ICS 49.140 V75 National Standards of People's Republic of China Spatial data and information transmission system Telemetry Space Data Link Protocol 2020-11-19 released 2021-06-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Preface Ⅴ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Abbreviations 2 5 Overview 3 5.1 Protocol concept 3 5.2 Business Overview 4 5.3 Function overview 8 6 Business 10 6.1 Overview 10 6.2 Business Data Unit 10 6.3 Virtual Channel Package (VCP) Service 11 6.4 Virtual Channel Access (VCA) Service 12 6.5 Virtual channel frame sub-header (VC_FSH) service 13 6.6 Virtual channel operation control domain (VC_OCF) business 14 6.7 Virtual Channel Frame (VCF) Service 15 6.8 Main channel frame sub-header (MC_FSH) service 16 6.9 Main channel operation control domain (MC_OCF) service 17 6.10 Main Channel Frame (MCF) Service 17 7 Data unit format 18 7.1 Convention of bit number 18 7.2 Telemetry transmission frame 19 7.3 Transmission frame leading header 19 7.4 Transmission frame sub-header 22 7.5 Transmission frame data field 23 7.6 Operation Control Domain 23 7.7 Frame Error Control Field 24 8 Agreement process 26 8.1 Sender protocol flow 26 8.2 Receiver protocol flow 30 9 Management parameters 34 9.1 Overview 34 9.2 Physical channel management parameters 34 9.3 Main channel management parameters 35 9.4 Virtual channel management parameters 35 9.5 Packet transmission management parameters 35 10 Support SDLS agreement 36 10.1 Overview 36 10.2 SDLS protocol format specification 36 10.3 SDLS protocol flow 38 10.4 SDLS management parameters 40 Appendix A (informative appendix) Structural changes of this standard compared with ISO 22645.2016 41 Appendix B (informative appendix) Technical differences between this standard and ISO 22645.2016 and the reasons 43 Figure 1 Hierarchical relationship between telemetry spatial data link protocol and OSI 3 Figure 2 Relationship between channels 4 Figure 3 Asynchronous business model 5 Figure 4 Synchronous business model 6 Figure 5 The internal composition of the sender protocol entity 8 Figure 6 The internal composition of the receiving end protocol entity 9 Figure 7.Telemetry spatial data link protocol channel tree 9 Figure 8 The convention of the serial number 19 Figure 9.Telemetry transmission frame composition structure 19 Figure 10 Transmission frame leading header 20 Figure 11 State of the data field of the transmission frame 21 Figure 12 Transmission frame sub-leader 22 Figure 13 Frame error control coding logic Figure 25 Figure 14 Frame error control decoding logic diagram 25 Figure 15 Packet processing function abstract model 26 Figure 16 Abstract model of virtual channel generation function 27 Figure 17.Abstract model of virtual channel multiplexing function 28 Figure 18 Main channel generation function abstract model 28 Figure 19.Main channel multiplexing function abstract model 29 Figure 20 An abstract model of all frame generation functions 30 Figure 21 Abstract model of the package extraction function 31 Figure 22 Abstract model of virtual channel receiving function 31 Figure 23 Abstract model of virtual channel demultiplexing function 32 Figure 24 Abstract model of the main channel receiving function 33 Figure 25 Abstract model of main channel demultiplexing function 33 Figure 26 Abstract model of all frame receiving functions 34 Figure 27 Comparison of frame without SDLS and frame with SDLS 37 Table 1 Services provided by the telemetry space data link protocol 7 Table 2 Physical channel management parameters 34 Table 3 Main channel management parameters 35 Table 4 Virtual channel management parameters 35 Table 5 Packet transmission management parameters 35 Table 6 Telemetry services protected by SDLS protocol 36 Table A.1 The comparison between this standard and ISO 22645.2016 chapter number 41 Table B.1 Technical differences between this standard and ISO 22645.2016 and the reasons 43

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses the redrafting method to modify and adopt ISO 22645.2016 "Space Data and Information Transmission System Telemetry Space Data Link Protocol". Compared with ISO 22645.2016, this standard has many structural adjustments. Appendix A lists this standard and ISO 22645.2016 The chapter number comparison list. Compared with ISO 22645.2016, there are technical differences between this standard, and the clauses involved in these differences have been passed on the outer margins. 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 22645.2016; --- Change Appendix A "Abbreviations" in ISO 22645.2016 to Chapter 4 of the main text; ---The informative appendix B "References" of ISO 22645.2016 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. China Aerospace Standardization Institute, Beijing Space Vehicle General Design Department, Anhui Wantong Technology Co., Ltd. Division, Shenzhen Institute of Aerospace Science and Technology Innovation, Beijing Institute of Telemetry Technology, Beijing Institute of Tracking and Communication Technology. The main drafters of this standard. Wang Weijia, Zhang Hongjun, Wang Zhenyong, Gao Daming, Li Ruijun, Liu Zhenjie, Zhang Liping, Yang Keyuan, Zhou Yuxia. Spatial data and information transmission system Telemetry Space Data Link Protocol

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. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 39351-2020_English be delivered?

Answer: Upon your order, we will start to translate GB/T 39351-2020_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 6 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 39351-2020_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 39351-2020_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.