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Similar standardsT/CSAE 159-2020: LTE-based vehicular communication - Direct communication system roadside unit technical requirements---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/TCSAE159-2020 ASSOCIATION STANDARD ICS 35.100 CCS L 79 ITE-based vehicular communication - Direct communication system roadside unit technical requirements Issued on. NOVEMBER 26, 2020 Implemented on. NOVEMBER 26, 2020 Issued by. China Society of Automotive Engineers The China Society of Automotive Engineering Standards (hereinafter referred to as the CSAE Standards) are normative technical documents for the market, to freely choose and voluntarily adopt. They are organized and formulated by the China Society of Automotive Engineers, in accordance with clear procedures and rules, following the principles of openness, transparency, consensus. The CSAE standard aims to give full play to the advantages of the market's independent standard formulation; focuses on the improvement of enterprise competitiveness; promotes the accelerated development and wide application of innovative technologies, in the automotive industry. The copyright of the CSAE standard belongs to the China Society of Automotive Engineers. Except for the use of national laws or the prior permission of the China Society of Automotive Engineers, the standard shall not be reproduced, in any form. During the implementation of this standard, if you find any need to modify or supplement, you are welcome to give feedback to the China Society of Automotive Engineers, for reference when revising. Address of China Society of Automotive Engineers. Beijing, Daxing, Yizhuang Development Zone, Ronghua South Road, No.13 (AVIC International Plaza, Block H5), Postal Code. 100176 Tel. 010-50911954; Email. wwq@sae-china.org. Table of ContentsForeword... 5 1 Scope... 6 2 Normative references... 6 3 Terms and definitions... 7 4 Abbreviations... 7 5 General requirements... 8 6 Requirements of MAP message... 11 7 SPAT message sending requirements... 22 8 RSM message sending requirements... 33 9 RSI message sending requirements... 41 10 Message scheduling and congestion control... 51 11 Requirements of RF performance... 51 12 Security requirements... 51 Appendix B (Informative) Application description... 55 Appendix C (Normative) Type and value of DE_EventType (traffic event index), DF_Description (additional description)... 56 Appendix D (Normative) Selection requirements of road abstraction point... 60 Appendix E (Normative) Extended indication maneuver in DF_MovementList... 621 ScopeThis document specifies the technical requirements for direct communication roadside units, which is supported by the ITE-based vehicular communication (LTE-V2X). This document applies to roadside units, which adopts the LTE-V2X-based direct communication.2 Normative referencesThe following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) is applicable to this standard. GB 5768.2-2009 Road traffic signs and markings - Part 2.Road traffic signs GB 14886 Specifications for road traffic signal setting and installation GB/T 27957-2011 Grade of hail GB/T 27967-2011 Format of weather forecast on highway traffic GB/T 29100-2012 Road traffic information service - Traffic event classification and coding GB/T 30699-2014 Road traffic signs code3 Terms and definitionsThere are no terms and definitions that need to be defined in this document.4 AbbreviationsThe following abbreviations apply to this document.5 General requirements5.1 Standards to be followed by each layer The roadside unit sends MAP, SPAT, RSM, RSI messages, through the vehicle-roadside unit interface. The standards, that each layer shall meet, are as shown in Table 1. 5.2 Access layer/PC5 5.2.1 The access layer, which is corresponding to the PC5 interface of the roadside unit, shall meet the following requirements. 5.2.2 The transmission of access layer data shall meet the following requirements. 5.2.3 The data reception of the access layer shall meet the requirements. When the roadside unit receives the STCH service data, it shall adopt the RLC UM mode. 5.3 Network layer 5.3.1 Network layer's data transmission shall meet the following requirements. 5.5 Priority setting of roadside messages For the MAP, SPAT, RSM, RSI messages, it shall set the Priority, according to Table 3.6 Requirements of MAP message6.1 Requirements of application layer The application layer standard adopts YD/T 3709-2020.The specific items and requirements are as shown in Table 4. 6.4 Requirements of data element 6.4.1 Msg_MAP 6.4.2 DF_Node 6.4.2.1 name The name or description of the map node, which is expressed by a string. The minimum is 1 byte and the maximum is 63 bytes. 6.4.2.2 id The map node number, which is composed of an area number field and a local number field. 6.4.3 DF_Link 6.4.3.1 name The name or description of road segment, which is expressed by a string. The minimum is 1 byte; the maximum is 63 bytes. 6.4.8.3 phaseId Signal light phase ID, wherein value 0 means invalid ID. phaseId shall be consistent with the situation that the lane is controlled by the actual signal lights. Refer to 7.4.3.1.7 SPAT message sending requirements7.1 Requirements of application layer The application layer standard adopts YD/T 3709-2020.The specific items and requirements are as shown in Table 7. 7.2 Message content SPAT messages shall meet the following conditions. 7.4.1.3 name The name or description of the SPAT message, which is expressed by a string. The minimum is 1 byte; the maximum is 63 bytes. 7.4.2 DF_IntersectionState 7.4.2.1 intersectionId It consists of a globally unique region ID and a unique node ID within a region. See 6.4.2.2. 7.4.2.2 status Indicates the current control mode state of the signal light; the internal value needs to be set, according to the actual working state of the signal control system. The specific setting method is as shown in Table 9.Each bit of status is initially set to 0; each condition is independently judged and set.8 RSM message sending requirements8.1 Requirements of application layer The application layer standard adopts YD/T 3709-2020.The specific items and requirements are shown in Table 11. 8.4.2 DF_ParticipantData 8.4.2.1 ptcType The type of traffic participant, which is detected by the roadside unit. 0 is unknown, 1 is motor vehicle, 2 is non-motor vehicle, 3 is pedestrian, 4 is rsu itself. 8.4.2.2 ptcId The temporary ID, which is set by the roadside unit, 0 is the RSU itself, 1...255 represents the participants, which are detected by the RSU; the ptcId of different participants in the RSU must be unique. 8.4.2.5 secMark The system shall set secMark, as shown in YD/T 3709-2020, using UTC as the reference time. 8.4.2.6 pos Define the relative position in 3D (relative latitude and longitude and relative elevation). The agreed deviation value is equal to the actual value minus the reference value. 8.4.2.7 posConfidence Define the accuracy of the current real-time position (latitude, longitude, elevation), including horizontal position accuracy and elevation accuracy, which is calculated and updated by the system itself, in real time. 8.4.2.8 transmission The transmission shall correctly reflect the gear state of the vehicle.9 RSI message sending requirements9.1 Requirements of application layer The application layer standard adopts YD/T 3709-2020.The specific entries and requirements are as shown in Table 13. 9.2 Message content RSI messages shall meet the following conditions. 9.5.1.2 id For the first RSI, which is generated after the system device is started, the system shall initialize the RSU device identification id to a random value, whose range is defined by YD/T 3709-2020. 9.5.1.3 moy The system shall set DE_MinuteOfTheYear, as shown in YD/T 3709-2020, using UTC as the reference time. 9.5.1.4 refpos RSI reference coordinate point, which is used as the reference point of the point set, in the referencePath of RTS and RTE. 9.5.1.5 rtes Define a set of road traffic events, including at least 1 and at most 8 road traffic event information. 9.5.1.6 rtss Define a collection of road traffic signs. It contains at least 1 road traffic sign information and a maximum of 16. 9.5.2 DF_RTEData T/CASE 159-2020 ASSOCIATION STANDARD ICS 35.100 CCS L 79 ITE-based vehicular communication - Direct communication system roadside unit technical requirements Issued on. NOVEMBER 26, 2020 Implemented on. NOVEMBER 26, 2020 Issued by. China Society of Automotive Engineers The China Society of Automotive Engineering Standards (hereinafter referred to as the CSAE Standards) are normative technical documents for the market, to freely choose and voluntarily adopt. They are organized and formulated by the China Society of Automotive Engineers, in accordance with clear procedures and rules, following the principles of openness, transparency, consensus. The CSAE standard aims to give full play to the advantages of the market's independent standard formulation; focuses on the improvement of enterprise competitiveness; promotes the accelerated development and wide application of innovative technologies, in the automotive industry. The copyright of the CSAE standard belongs to the China Society of Automotive Engineers. Except for the use of national laws or the prior permission of the China Society of Automotive Engineers, the standard shall not be reproduced, in any form. During the implementation of this standard, if you find any need to modify or supplement, you are welcome to give feedback to the China Society of Automotive Engineers, for reference when revising. Address of China Society of Automotive Engineers. Beijing, Daxing, Yizhuang Development Zone, Ronghua South Road, No.13 (AVIC International Plaza, Block H5), Postal Code. 100176 Tel. 010-50911954; Email. wwq@sae-china.org.Table of ContentsForeword... 5 1 Scope... 6 2 Normative references... 6 3 Terms and definitions... 7 4 Abbreviations... 7 5 General requirements... 8 6 Requirements of MAP message... 11 7 SPAT message sending requirements... 22 8 RSM message sending requirements... 33 9 RSI message sending requirements... 41 10 Message scheduling and congestion control... 51 11 Requirements of RF performance... 51 12 Security requirements... 51 Appendix B (Informative) Application description... 55 Appendix C (Normative) Type and value of DE_EventType (traffic event index), DF_Description (additional description)... 56 Appendix D (Normative) Selection requirements of road abstraction point... 60 Appendix E (Normative) Extended indication maneuver in DF_MovementList... 621 ScopeThis document specifies the technical requirements for direct communication roadside units, which is supported by the ITE-based vehicular communication (LTE-V2X). This document applies to roadside units, which adopts the LTE-V2X-based direct communication.2 Normative referencesThe following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) is applicable to this standard. GB 5768.2-2009 Road traffic signs and markings - Part 2.Road traffic signs GB 14886 Specifications for road traffic signal setting and installation GB/T 27957-2011 Grade of hail GB/T 27967-2011 Format of weather forecast on highway traffic GB/T 29100-2012 Road traffic information service - Traffic event classification and coding GB/T 30699-2014 Road traffic signs code3 Terms and definitionsThere are no terms and definitions that need to be defined in this document.4 AbbreviationsThe following abbreviations apply to this document.5 General requirements5.1 Standards to be followed by each layer The roadside unit sends MAP, SPAT, RSM, RSI messages, through the vehicle-roadside unit interface. The standards, that each layer shall meet, are as shown in Table 1. 5.2 Access layer/PC5 5.2.1 The access layer, which is corresponding to the PC5 interface of the roadside unit, shall meet the following requirements. 5.2.2 The transmission of access layer data shall meet the following requirements. 5.2.3 The data reception of the access layer shall meet the requirements. When the roadside unit receives the STCH service data, it shall adopt the RLC UM mode. 5.3 Network layer 5.3.1 Network layer's data transmission shall meet the following requirements. 5.5 Priority setting of roadside messages For the MAP, SPAT, RSM, RSI messages, it shall set the Priority, according to Table 3.6 Requirements of MAP message6.1 Requirements of application layer The application layer standard adopts YD/T 3709-2020.The specific items and requirements are as shown in Table 4. 6.4 Requirements of data element 6.4.1 Msg_MAP 6.4.2 DF_Node 6.4.2.1 name The name or description of the map node, which is expressed by a string. The minimum is 1 byte and the maximum is 63 bytes. 6.4.2.2 id The map node number, which is composed of an area number field and a local number field. 6.4.3 DF_Link 6.4.3.1 name The name or description of road segment, which is expressed by a string. The minimum is 1 byte; the maximum is 63 bytes. 6.4.8.3 phaseId Signal light phase ID, wherein value 0 means invalid ID. phaseId shall be consistent with the situation that the lane is controlled by the actual signal lights. Refer to 7.4.3.1.7 SPAT message sending requirements7.1 Requirements of application layer The application layer standard adopts YD/T 3709-2020.The specific items and requirements are as shown in Table 7. 7.2 Message content SPAT messages shall meet the following conditions. 7.4.1.3 name The name or description of the SPAT message, which is expressed by a string. The minimum is 1 byte; the maximum is 63 bytes. 7.4.2 DF_IntersectionState 7.4.2.1 intersectionId It consists of a globally unique region ID and a unique node ID within a region. See 6.4.2.2. 7.4.2.2 status Indicates the current control mode state of the signal light; the internal value needs to be set, according to the actual working state of the signal control system. The specific setting method is as shown in Table 9.Each bit of status is initially set to 0; each condition is independently judged and set.8 RSM message sending requirements8.1 Requirements of application layer The application layer standard adopts YD/T 3709-2020.The specific items and requirements are shown in Table 11. 8.4.2 DF_ParticipantData 8.4.2.1 ptcType The type of traffic participant, which is detected by the roadside unit. 0 is unknown, 1 is motor vehicle, 2 is non-motor vehicle, 3 is pedestrian, 4 is rsu itself. 8.4.2.2 ptcId The temporary ID, which is set by the roadside unit, 0 is the RSU itself, 1...255 represents the participants, which are detected by the RSU; the ptcId of different participants in the RSU must be unique. 8.4.2.5 secMark The system shall set secMark, as shown in YD/T 3709-2020, using UTC as the reference time. 8.4.2.6 pos Define the relative position in 3D (relative latitude and longitude and relative elevation). The agreed deviation value is equal to the actual value minus the reference value. 8.4.2.7 posConfidence Define the accuracy of the current real-time position (latitude, longitude, elevation), including horizontal position accuracy and elevation accuracy, which is calculated and updated by the system itself, in real time. 8.4.2.8 transmission The transmission shall correctly reflect the gear state of the vehicle.9 RSI message sending requirements9.1 Requirements of application layer The application layer standard adopts YD/T 3709-2020.The specific entries and requirements are as shown in Table 13. 9.2 Message content RSI messages shall meet the following conditions. 9.5.1.2 id For the first RSI, which is generated after the system device is started, the system shall initialize the RSU device identification id to a random value, whose range is defined by YD/T 3709-2020. 9.5.1.3 moy The system shall set DE_MinuteOfTheYear, as shown in YD/T 3709-2020, using UTC as the reference time. 9.5.1.4 refpos RSI reference coordinate point, which is used as the reference point of the point set, in the referencePath of RTS and RTE. 9.5.1.5 rtes Define a set of road traffic events, including at least 1 and at most 8 road traffic event information. 9.5.1.6 rtss Define a collection of road traffic signs. It contains at least 1 road traffic sign information and a maximum of 16. 9.5.2 DF_RTEData ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of TCSAE159-2020 be delivered?Answer: The full copy PDF of English version of TCSAE159-2020 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of TCSAE159-2020_English with my colleagues?Answer: Yes. The purchased PDF of TCSAE159-2020_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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