Space engineering - Communication guidelines

This ECSS handbook is intended to help implementers and users of data handling systems who are adhering to the EN 16603-50 (equivalent to ECSS-E-ST-50) series of standards. The handbook provides an overview of the EN 16603-50 standards and related CCSDS Recommended Standards and describes how the individual standards may be used together to form a coherent set of communications protocols. It also evaluates issues which could not be discussed in the Standards documents themselves, and provides guidance on option selection and implementation choices.
It provides guidance to the EN 16603-50 series of standards including related CCSDS Recommendations. The information provided is informative and intended to be used as best practice; it is not binding on implementers.
The information contained in this handbook is not part of the Standards. In the event of any conflict between the Standards and the material presented in this handbook, the ECSS Standards prevail.

Raumfahrttechnik - Richtlinien zur Kommunikation

Ingénierie spatiale - Recommandations pour les systèmes de communications

Vesoljska tehnika - Smernice za komuniciranje

Namen tega priročnika ECSS je pomagati izvajalcem in uporabnikom sistemov za obdelavo podatkov, ki uporabljajo skupino standardov EN 16603-50 (enakovredno standardu ECSS-E-ST-50). Priročnik vsebuje pregled standardov EN 16603-50 in sorodnih standardov, ki jih priporoča CCSDS, ter opisuje, kako je mogoče posamezne standarde skupaj uporabiti za oblikovanje smiselnega sklopa komunikacijskih protokolov. Poleg tega so v njem ovrednotena vprašanja, ki jih ni bilo mogoče obravnavati v samih dokumentih standardov, ter podane so smernice glede izbire možnosti in možnih izvedb.
Podaja smernice za skupino standardov EN 16603-50, vključno s povezanimi priporočili CCSDS. Navedene informacije so informativne in namenjene uporabi kot najboljša praksa; za izvajalce niso zavezujoče.
Informacije, ki jih vsebuje ta priročnik, niso del standardov. V primeru neskladij med standardi in gradivom, predstavljenim v tem priročniku, imajo prednost standardi ECSS.

General Information

Status
Published
Publication Date
29-Jun-2022
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
20-Jun-2022
Due Date
25-Aug-2022
Completion Date
30-Jun-2022

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SLOVENSKI STANDARD
SIST-TP CEN/TR 17603-50:2022
01-september-2022
Vesoljska tehnika - Smernice za komuniciranje
Space engineering - Communication guidelines
Raumfahrttechnik - Richtlinien zur Kommunikation
Ingénierie spatiale - Recommandations pour les systèmes de communications
Ta slovenski standard je istoveten z: CEN/TR 17603-50:2022
ICS:
49.140 Vesoljski sistemi in operacije Space systems and
operations
SIST-TP CEN/TR 17603-50:2022 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TP CEN/TR 17603-50:2022
TECHNICAL REPORT CEN/TR 17603-50
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
June 2022
ICS 49.140
English version
Space engineering - Communication guidelines

Ingénierie spatiale - Recommandations pour les Raumfahrttechnik - Richtlinien zur Kommunikation

systèmes de communications

This Technical Report was approved by CEN on 20 April 2022. It has been drawn up by the Technical Committee CEN/CLC/JTC 5.

CEN and CENELEC members are the national standards bodies and national electrotechnical committees of Austria, Belgium,

Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,

Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia,

Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
CEN-CENELEC Management Centre:
Rue de la Science 23, B-1040 Brussels
© 2022 CEN/CENELEC All rights of exploitation in any form and by any means
Ref. No. CEN/TR 17603-50:2022 E
reserved worldwide for CEN national Members and for
CENELEC Members.
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Table of contents

European Foreword ................................................................................................. 15

1 Introduction ........................................................................................................... 16

1.1 Purpose .................................................................................................................. 16

1.2 Scope ..................................................................................................................... 16

1.3 Document structure ................................................................................................ 16

2 Terms, definitions and abbreviations ................................................................. 18

2.1 Terms and definitions from other documents .......................................................... 18

2.2 Terms specific to the present document ................................................................. 18

2.3 Conventions............................................................................................................ 18

2.3.1 Bit numbering and most significant bit ....................................................... 18

2.4 Abbreviated terms................................................................................................... 19

3 The E-50 series of standards ............................................................................... 23

3.1 Background ............................................................................................................ 23

3.1.1 Scope of the ECSS E-50 series ................................................................ 23

3.1.2 CCSDS standards ..................................................................................... 23

3.1.3 Relationship to PSS standards .................................................................. 24

3.1.4 Relationship of ECSS standards to CCSDS standards ............................. 25

3.2 Standards covered in this handbook ....................................................................... 25

3.3 ECSS E-50 Protocols ............................................................................................. 28

3.3.1 Physical Layer ........................................................................................... 30

3.3.2 Data Link Layer ......................................................................................... 30

3.3.3 Network Layer ........................................................................................... 31

3.3.4 Transport Layer ......................................................................................... 31

3.3.5 Application Layer ...................................................................................... 32

3.4 End to End Aspects ................................................................................................ 32

4 Standards overview .............................................................................................. 35

4.1 Introduction ............................................................................................................. 35

4.2 E-ST-50: Communications ...................................................................................... 35

4.2.1 Purpose and usage ................................................................................... 35

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4.2.2 Description ................................................................................................ 35

4.2.3 Options ..................................................................................................... 36

4.2.4 Recommended practice ............................................................................ 36

4.3 E-ST-50-02: Ranging and Doppler tracking ............................................................ 37

4.3.1 Purpose and usage ................................................................................... 37

4.3.2 Description ................................................................................................ 37

4.3.3 Options ..................................................................................................... 38

4.3.4 Recommended practice ............................................................................ 39

4.4 E-ST-50-05: Radio frequency and modulation ........................................................ 40

4.4.1 Purpose and usage ................................................................................... 40

4.4.2 Description ................................................................................................ 40

4.4.3 Differences from CCSDS 401.0-B ............................................................. 41

4.4.4 Options ..................................................................................................... 42

4.4.5 Recommended practice ............................................................................ 42

4.5 E-ST-50-01: Telemetry synchronization and channel coding .................................. 45

4.5.1 Purpose and usage ................................................................................... 45

4.5.2 Description ................................................................................................ 45

4.5.3 Differences from CCSDS 131.0-B-1 .......................................................... 49

4.5.4 Options ..................................................................................................... 50

4.5.5 Recommended practice ............................................................................ 51

4.6 E-ST-50-03: Telemetry transfer frame protocol ....................................................... 52

4.6.1 Purpose and usage ................................................................................... 52

4.6.2 Description ................................................................................................ 53

4.6.3 Differences from CCSDS 132.0-B-1 .......................................................... 56

4.6.4 Options ..................................................................................................... 58

4.6.5 Recommended practice ............................................................................ 58

4.7 E-ST-50-04: Telecommand protocols, synchronization and channel coding ........... 60

4.7.1 Introduction ............................................................................................... 60

4.7.2 Purpose and usage ................................................................................... 60

4.7.3 Description ................................................................................................ 61

4.7.4 Differences from CCSDS recommendations ............................................. 67

4.7.5 Options ..................................................................................................... 73

4.7.6 Recommended practice ............................................................................ 73

4.7.7 Telecommand decoder specification ......................................................... 74

4.8 CCSDS 732.0-B: AOS Space Data Link Protocol ................................................... 75

4.8.1 Purpose and usage ................................................................................... 75

4.8.2 Options ..................................................................................................... 78

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4.8.3 Recommended practice ............................................................................ 78

4.9 CCSDS Proximity-1 Space Link Protocol ................................................................ 80

4.9.1 Purpose and usage ................................................................................... 80

4.9.2 Description ................................................................................................ 80

4.9.3 Options ..................................................................................................... 82

4.9.4 Recommended practice ............................................................................ 82

4.10 CCSDS Packet Protocols ....................................................................................... 84

4.10.1 Introduction ............................................................................................... 84

4.10.2 CCSDS 133.0-B: Space Packet Protocol .................................................. 84

4.10.3 CCSDS 133.1-B: Encapsulation Service ................................................... 87

4.11 Internet Protocols.................................................................................................... 88

4.11.1 Introduction ............................................................................................... 88

4.11.2 RFC 791: Internet Protocol Version 4 ........................................................ 88

4.11.3 RFC 1883: Internet Protocol Version 6 ...................................................... 89

4.12 E-ST-70-41: Telemetry and telecommand packet utilization ................................... 91

4.12.1 Purpose and usage ................................................................................... 91

4.12.2 Description ................................................................................................ 91

4.12.3 Options ..................................................................................................... 92

4.12.4 Recommended practice ............................................................................ 92

4.13 CCSDS 727.0-B: CCSDS File Delivery Protocol (CFDP) ........................................ 93

4.13.1 Purpose and usage ................................................................................... 93

4.13.2 Description ................................................................................................ 94

4.13.3 Options ..................................................................................................... 97

4.13.4 Recommended practice ............................................................................ 97

4.14 CCSDS 135.0-B: Space Link Identifiers .................................................................. 99

4.14.1 Purpose and usage ................................................................................... 99

4.14.2 Description ................................................................................................ 99

4.14.3 Options ................................................................................................... 102

4.14.4 Recommended practice .......................................................................... 102

4.15 CCSDS 320.0-B: CCSDS Global Spacecraft Identification Field ........................... 103

4.15.1 Purpose and usage ................................................................................. 103

4.15.2 Description .............................................................................................. 103

4.15.3 Options ................................................................................................... 103

4.15.4 Recommended practice .......................................................................... 104

4.16 Data Compression ................................................................................................ 105

4.16.1 Purpose and usage ................................................................................. 105

4.16.2 CCSDS 121.0-B: Lossless Data Compression ........................................ 106

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4.16.3 CCSDS 122.0-B: Image Data Compression ............................................ 107

4.17 CCSDS 301.0-B: Time Code Formats .................................................................. 112

4.17.1 Purpose and usage ................................................................................. 112

4.17.2 Description .............................................................................................. 112

4.17.3 Options ................................................................................................... 112

4.17.4 Recommended practice .......................................................................... 112

4.18 E-ST-50-12: SpaceWire. Links, nodes, routers and networks ............................... 113

4.18.1 Purpose and usage ................................................................................. 113

4.18.2 Description .............................................................................................. 113

4.18.3 Options ................................................................................................... 114

4.18.4 Recommended practice .......................................................................... 114

4.19 E-ST-50-13: MIL 1553 Standard extension ........................................................... 115

4.19.1 Purpose and usage ................................................................................. 115

4.19.2 Description .............................................................................................. 115

4.19.3 Recommended practice .......................................................................... 115

4.20 E-ST-50-14: Spacecraft discrete interfaces........................................................... 116

4.20.1 Purpose and usage ................................................................................. 116

4.20.2 Description .............................................................................................. 116

4.20.3 Options ................................................................................................... 117

4.20.4 Recommended practice .......................................................................... 118

5 Specific topics .................................................................................................... 119

5.1 Introduction ........................................................................................................... 119

5.2 Synchronization and channel coding .................................................................... 119

5.2.1 Functions of synchronization and channel coding ................................... 119

5.2.2 Coding options ........................................................................................ 120

5.3 Playback of recorded data .................................................................................... 123

5.3.1 Legacy systems with stored TM Transfer Frames ................................... 123

5.3.2 Systems with stored AOS Transfer Frames............................................. 123

5.3.3 Current systems ...................................................................................... 124

5.4 Idle data ................................................................................................................ 124

5.4.1 Synchronous channel: TM and AOS ....................................................... 124

5.4.2 Asynchronous channel: TC and Proximity-1 ............................................ 127

5.5 Compression ........................................................................................................ 127

5.6 Security ................................................................................................................ 128

5.7 Interoperability ...................................................................................................... 129

5.8 Conformance and PICS ........................................................................................ 130

6 Rationale and architectures ............................................................................... 132

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6.1 Evolution of space communications standards ..................................................... 132

6.1.1 The beginning of CCSDS ........................................................................ 132

6.1.2 Standards for TC and TM ........................................................................ 133

6.1.3 Later standards: AOS, Proximity-1 and CFDP ......................................... 133

6.1.4 New developments: DTN and SOIS ........................................................ 133

6.1.5 CCSDS and ECSS standards ................................................................. 135

6.2 Guidelines ............................................................................................................ 135

7 Supporting components .................................................................................... 137

7.1 Introduction ........................................................................................................... 137

7.2 Flight components ................................................................................................ 137

7.3 Ground components ............................................................................................. 137

7.4 Industry ................................................................................................................. 137

Annex A (informative) Draft PICS for ECSS-E-ST-50-01: Sending end ............. 138

A.1 Introduction to the PICS ........................................................................................ 138

A.1.1 Purpose .................................................................................................. 138

A.1.2 Format of the PICS ................................................................................. 138

A.2 Identification ......................................................................................................... 141

A.3 Channel coding ..................................................................................................... 142

A.4 Convolutional code ............................................................................................... 143

A.5 Reed-Solomon code ............................................................................................. 144

A.6 Concatenation of Reed-Solomon code and convolutional code ............................ 145

A.7 Reed-Solomon code and 4D-8PSK-TCM .............................................................. 147

A.8 Turbo code ........................................................................................................... 148

A.9 Uncoded ............................................................................................................... 149

A.10 External items ....................................................................................................... 150

Annex B (informative) Draft PICS for ECSS-E-ST-50-01: Receiving end .......... 151

B.1 Introduction to the PICS ........................................................................................ 151

B.1.1 Purpose .................................................................................................. 151

B.1.2 Format of the PICS ................................................................................. 151

B.2 Identification ......................................................................................................... 154

B.3 Channel coding ..................................................................................................... 155

B.4 Convolutional code ............................................................................................... 156

B.5 Reed-Solomon code ............................................................................................. 158

B.6 Concatenation of Reed-Solomon code and convolutional code ............................ 159

B.7 Reed-Solomon code and 4D-8PSK-TCM .............................................................. 161

B.8 Turbo code ........................................................................................................... 162

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B.9 Uncoded ............................................................................................................... 163

B.10 External items ....................................................................................................... 164

Annex C (informative) Draft PICS for ECSS-E-ST-50-03: Sending end ............. 165

C.1 Introduction to the PICS ........................................................................................ 165

C.1.1 Purpose .................................................................................................. 165

C.1.2 Format of the PICS ................................................................................. 165

C.2 Identification ......................................................................................................... 168

C.3 TM Transfer Frame format .................................................................................... 169

C.3.1 General ................................................................................................... 169

C.3.2 Transfer Frame Primary Header .............................................................. 169

C.3.3 Transfer Frame Secondary Header ......................................................... 172

C.3.4 Transfer Frame Data Field ...................................................................... 174

C.3.5 Operational Control Field ........................................................................ 176

C.3.6 Frame Error Control Field ........................................................................ 178

C.4 TM Transfer Frame length .................................................................................... 179

C.5 Packet processing function ................................................................................... 179

C.6 External items ....................................................................................................... 181

Annex D (informative) Draft PICS for ECSS-E-ST-50-03: Receiving end .......... 183

D.1 Introduction to the PICS ........................................................................................ 183

D.1.1 Purpose .................................................................................................. 183

D.1.2 Format of the PICS ................................................................................. 183

D.2 Identification ......................................................................................................... 186

D.3 TM Transfer Frame format .................................................................................... 187

D.3.1 General ................................................................................................... 187

D.3.2 Transfer Frame Primary Header .............................................................. 187

D.3.3 Transfer Frame Secondary Header ......................................................... 189

D.3.4 Transfer Frame Data Field ...................................................................... 191

D.3.5 Operational Control Field ........................................................................ 193

D.3.6 Frame Error Control Field ........................................................................ 194

D.4 TM Transfer Frame length .................................................................................... 194

D.5 Packet extraction function ..................................................................................... 195

Annex E (informative) Draft PICS for ECSS-E-ST-50-04: Sending end ............. 196

E.1 Introduction to the PICS ........................................................................................ 196

E.1.1 Purpose .................................................................................................. 196

E.1.2 Format of the PICS ................................................................................. 196

E.2 Identification ......................................................................................................... 199

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E.3 Supported layers and sublayers............................................................................ 200

E.4 Segmentation sublayer ......................................................................................... 201

E.4.1 Introduction ............................................................................................. 201

E.4.2 Elements of the segmentation sublayer ................................................... 202

E.4.3 TC Segments .......................................................................................... 203

E.4.4 Segmentation .......................................................................................... 204

E.4.5 Blocking function on a virtual channel that carries TC Segments ............ 205

E.4.6 Blocking function on a virtual channel that does not carry TC

Segments ................................................................................................ 207

E.4.7 MAP multiplexing .................................................................................... 208

E.4.8 Transfer notification ................................................................................. 208

E.5 Transfer sublayer .................................................................................................. 209

E.5.1 Introduction ............................................................................................. 209

E.5.2 Elements of the transfer sublayer ............................................................ 209

E.5.3 TC Transfer Frame data structure ........................................................... 210

E.5.4 CLCW data structure ............................................................................... 211

E.5.5 Sending end of COP-1 protocol, FOP-1 .................................................. 212

E.5.6 Procedures below FOP-1 ........................................................................ 213

E.5.7 Virtual channel multiplexing ..................................................................... 214

E.6 Synchronization and channel coding sublayer ...................................................... 215

E.6.1 Introduction ............................................................................................. 215

E.6.2 Elements of the synchronization and channel coding sublayer ................ 215

E.6.3 CLTU and BCH codeblock ...................................................................... 216

E.6.4 Pseudo-randomization procedure ........................................................... 218

E.6.5 BCH encoding procedure ........................................................................ 218

E.6.6 Handling of Abort request from FOP-1 .................................................... 219

E.7 Physical layer ....................................................................................................... 220

E.7.1 Introduction ............................................................................................. 220

E.7.2 Elements of the physical layer ..............................
...

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