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This standard is one of the technical standards of LTE-based vehicular communication, of which, the composition and titles are as follows:
a) YD/T 3400-2018 General technical requirements of LTE-based vehicular communication;
b) YD/T 3340-2018 Technical requirements of air interface of LTE-based vehicular;
c) YD/T 3707-2020 Technical requirements of network layer of LTE-based vehicular communication;
d) YD/T 3709-2020 Technical requirements of message layer of LTE-based vehicular;
e) YD/T 3708-2020 Test methods of network layer of LTE-based vehicular communication;
f) YD/T 3710-2020 Test methods of message layer of LTE-based vehicular communication.
This standard is prepared in accordance with the rules given in GB/T 1.1-2009.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuing body of this standard shall not be held responsible for identifying any or all such patent rights.
This standard was proposed by and is under the jurisdiction of China Communications Standards Association.
Test methods of network layer of LTE-based vehicular communication
1 Scope
This standard specifies the test methods of network layer of LTE-based vehicular communication, and regulates the test parameters and indexes, test methods and test cases of network layer of LTE-based vehicular communication.
This standard is applicable to network layer of LTE-based vehicular communication.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced documents (including any amendments) applies.
YD/T 3340-2018 Technical requirements of air interface of LTE-based vehicular
YD/T 3400-2018 General technical requirements of LTE-based vehicular communication
YD/T 3707-2020 Technical requirements of network layer of LTE-based vehicular communication
3 Abbreviations
For the purposes of this document, the following abbreviations apply.
AID Application ID
DUT Device Under Test
DME Dedicated Management Entity
DSM Dedicated Short Message
DSMP Dedicated Short Message Protocol
LLC Logical Link Control
LTE Long Term Evolution
LTE-V2X LTE Vehicle to Everything
MIB Management Information Base
MAC Media Access Control
OBU On Board Unit
RSU Road Side Unit
SAP Service Access Point
TS Test System
TTCN-3 Testing and Test Control Notation-3
TCP Transmission Control Protocol
UDP User Datagram Protocol
4 Test environment of network layer of LTE-based vehicular communication
4.1 Test system architecture
See Figure 1 for the test system architecture of LTE-based vehicular communication. The test system is mainly composed of PC host and system simulator, which communicate with each other through Ethernet.
PC host is the upper computer in the test system, which realizes equipment operation, system self-inspection and TTCN-3 executable test case operation, and can realize automatic test and control of the terminal under test through relevant command interfaces.
The system simulator realizes the underlying protocol stack function of LTE-based vehicular communication technology, and the system simulator communicates with the terminal through air interface.
If the test system needs DUT to feed back the relevant test status or result information during the test process, DUT feeds back the relevant information through Ethernet.
Note: DUT test can be either OBU or RSU.
Figure 1 Test system architecture
4.2 Test conventions
The test cases and scenarios involved in this standard shall follow the following conventions:
Each test case tests only one wireless device under test at a time, and can’t test multiple wireless devices at the same time;
Unless otherwise specified, the “DSM message” mentioned in this standard refers to DSM message whose packet type is “Non-IP” and does not contain “DSMP Extension Domain Indicator” (i.e., the value is taken as 0);
Unless otherwise specified, the DSM message length (DsmMaxLength) value in MIB is 1400 bytes;
The related contents of DSA test of LTE-based vehicular communication technology are not within the definition scope of this standard;
Except for special instructions, the specific test operations for test cases involved in this standard are conducted according to those shown in Figure 2.
Foreword i 1 Scope 2 Normative references 3 Abbreviations 4 Test environment of network layer of LTE-based vehicular communication 4.1 Test system architecture 4.2 Test conventions 5 Test of DSM message 5.1 Test of DUT sending DSM message 5.2 Test of DUT receiving DSM message 6 Test of application registration 6.1 Test of higher layer application registration 7 Test of MIB maintenance 7.1 Test of DSM message length
基于LTE的车联网无线通信技术 网络层测试方法 Test methods of network layer of LTE-based vehicular communication
2020-04-16发布 2020-07-01实施 中华人民共和国工业和信息化部 发布 前言 本标准是基于LTE的车联网无线通信技术系列标准之一，该系列标准的结构和名称预计如下： a) YD/T 3400—2018《基于LTE的车联网无线通信技术 总体技术要求》； b) YD/T 3340—2018《基于LTE的车联网无线通信技术 空中接口技术要求》； c) YD/T 3707—2020《基于LTE的车联网无线通信技术 网络层技术要求》； d) YD/T 3709—2020《基于LTE的车联网无线通信技术 消息层技术要求》； e) YD/T 3708—2020《基于LTE的车联网无线通信技术 网络层测试方法》； f) YD/T 3710—2020《基于LTE的车联网无线通信技术 消息层测试方法》。 本标准按照GB/T 1.1—2009给出的规则起草。 请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别这些专利的责任。 本标准由中国通信标准化协会提出并归口。 基于LTE的车联网无线通信技术 网络层测试方法 1 范围 本标准规定了基于LTE的车联网无线通信技术网络层测试方法，对基于LTE的车联网无线通信技术网络层的测试参数与指标、测试方法、测试用例进行了规范。 本标准适用于基于LTE的车联网无线通信技术的网络层。 2 规范性引用文件 下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件，仅所注日期的版本适用于本文件。凡是不注日期的引用文件，其最新版本(包括所有的修改单)适用于本文件。 YD/T 3340—2018 基于LTE的车联网无线通信技术空中接口技术要求 YD/T 3400—2018 基于LTE的车联网无线通信技术总体技术要求 YD/T 3707—2020 基于LTE的车联网无线通信技术网络层技术要求 3 缩略语 下列缩略语适用于本文件。 AID 应用标识 Application ID DUT 被测实体 Device Under Test DME 专用管理实体 Dedicated Management Entity DSM 专用短消息 Dedicated Short Message DSMP 专用短消息协议 Dedicated Short Message Protocol LLC 逻辑链路控制 Logical Link Control LTE 长期演进技术 Long Term Evolution LTE-V2X 基于LTE的车用无线通信技术 LTE Vehicle to Everything MIB 管理信息库 Management Information Base MAC 媒体控制协议 Media Access Control OBU 车载单元 On Board Unit RSU 路侧单元 Road Side Unit SAP 服务接入点 Service Access Point TS 测试系统 Test System TTCN-3 测试与测试控制第三版 Testing and Test Control Notation-3 TCP 传输控制协议 Transmission Control Protocol UDP 用户数据报协议 User Datagram Protocol 4 LTE车联网无线通信技术网络层检测环境 4.1 测试系统架构 基于LTE的车联网无线通信测试系统架构如图1所示。测试系统主要由PC主机和系统模拟器两个部分组成，二者通过以太网进行通信。 PC主机是测试系统中的上位机，实现设备运行、系统自检以及TTCN-3可执行测试用例的运行，并且可通过相关命令接口对被测终端实现自动化测试及控制。 系统模拟器实现基于LTE的车联网无线通信技术的底层协议栈功能，系统模拟器与终端之间通过空口进行通信。 测试系统如需被测实体反馈测试过程中相关测试状态或测试结果信息，被测实体通过以太网反馈相关信息。
