Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
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的車聯(lián)網(wǎng)無(wú)線通信技術(shù)
網(wǎng)絡(luò)層測(cè)試方法
Test methods of network layer of LTE-based vehicular communication
2020-04-16發(fā)布 2020-07-01實(shí)施
中華人民共和國(guó)工業(yè)和信息化部 發(fā)布
前言
本標(biāo)準(zhǔn)是基于LTE的車聯(lián)網(wǎng)無(wú)線通信技術(shù)系列標(biāo)準(zhǔn)之一，該系列標(biāo)準(zhǔn)的結(jié)構(gòu)和名稱預(yù)計(jì)如下：
a) YD/T 3400—2018《基于LTE的車聯(lián)網(wǎng)無(wú)線通信技術(shù) 總體技術(shù)要求》；
b) YD/T 3340—2018《基于LTE的車聯(lián)網(wǎng)無(wú)線通信技術(shù) 空中接口技術(shù)要求》；
c) YD/T 3707—2020《基于LTE的車聯(lián)網(wǎng)無(wú)線通信技術(shù) 網(wǎng)絡(luò)層技術(shù)要求》；
d) YD/T 3709—2020《基于LTE的車聯(lián)網(wǎng)無(wú)線通信技術(shù) 消息層技術(shù)要求》；
e) YD/T 3708—2020《基于LTE的車聯(lián)網(wǎng)無(wú)線通信技術(shù) 網(wǎng)絡(luò)層測(cè)試方法》；
f) YD/T 3710—2020《基于LTE的車聯(lián)網(wǎng)無(wú)線通信技術(shù) 消息層測(cè)試方法》。
本標(biāo)準(zhǔn)按照GB/T 1.1—2009給出的規(guī)則起草。
請(qǐng)注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機(jī)構(gòu)不承擔(dān)識(shí)別這些專利的責(zé)任。
本標(biāo)準(zhǔn)由中國(guó)通信標(biāo)準(zhǔn)化協(xié)會(huì)提出并歸口。
基于LTE的車聯(lián)網(wǎng)無(wú)線通信技術(shù) 網(wǎng)絡(luò)層測(cè)試方法
1 范圍
本標(biāo)準(zhǔn)規(guī)定了基于LTE的車聯(lián)網(wǎng)無(wú)線通信技術(shù)網(wǎng)絡(luò)層測(cè)試方法，對(duì)基于LTE的車聯(lián)網(wǎng)無(wú)線通信技術(shù)網(wǎng)絡(luò)層的測(cè)試參數(shù)與指標(biāo)、測(cè)試方法、測(cè)試用例進(jìn)行了規(guī)范。
本標(biāo)準(zhǔn)適用于基于LTE的車聯(lián)網(wǎng)無(wú)線通信技術(shù)的網(wǎng)絡(luò)層。
2 規(guī)范性引用文件
下列文件對(duì)于本文件的應(yīng)用是必不可少的。凡是注日期的引用文件，僅所注日期的版本適用于本文件。凡是不注日期的引用文件，其最新版本(包括所有的修改單)適用于本文件。
YD/T 3340—2018 基于LTE的車聯(lián)網(wǎng)無(wú)線通信技術(shù)空中接口技術(shù)要求
YD/T 3400—2018 基于LTE的車聯(lián)網(wǎng)無(wú)線通信技術(shù)總體技術(shù)要求
YD/T 3707—2020 基于LTE的車聯(lián)網(wǎng)無(wú)線通信技術(shù)網(wǎng)絡(luò)層技術(shù)要求
3 縮略語(yǔ)
下列縮略語(yǔ)適用于本文件。
AID 應(yīng)用標(biāo)識(shí) Application ID
DUT 被測(cè)實(shí)體 Device Under Test
DME 專用管理實(shí)體 Dedicated Management Entity
DSM 專用短消息 Dedicated Short Message
DSMP 專用短消息協(xié)議 Dedicated Short Message Protocol
LLC 邏輯鏈路控制 Logical Link Control
LTE 長(zhǎng)期演進(jìn)技術(shù) Long Term Evolution
LTE-V2X 基于LTE的車用無(wú)線通信技術(shù) LTE Vehicle to Everything
MIB 管理信息庫(kù) Management Information Base
MAC 媒體控制協(xié)議 Media Access Control
OBU 車載單元 On Board Unit
RSU 路側(cè)單元 Road Side Unit
SAP 服務(wù)接入點(diǎn) Service Access Point
TS 測(cè)試系統(tǒng) Test System
TTCN-3 測(cè)試與測(cè)試控制第三版 Testing and Test Control Notation-3
TCP 傳輸控制協(xié)議 Transmission Control Protocol
UDP 用戶數(shù)據(jù)報(bào)協(xié)議 User Datagram Protocol
4 LTE車聯(lián)網(wǎng)無(wú)線通信技術(shù)網(wǎng)絡(luò)層檢測(cè)環(huán)境
4.1 測(cè)試系統(tǒng)架構(gòu)
基于LTE的車聯(lián)網(wǎng)無(wú)線通信測(cè)試系統(tǒng)架構(gòu)如圖1所示。測(cè)試系統(tǒng)主要由PC主機(jī)和系統(tǒng)模擬器兩個(gè)部分組成，二者通過(guò)以太網(wǎng)進(jìn)行通信。
PC主機(jī)是測(cè)試系統(tǒng)中的上位機(jī)，實(shí)現(xiàn)設(shè)備運(yùn)行、系統(tǒng)自檢以及TTCN-3可執(zhí)行測(cè)試用例的運(yùn)行，并且可通過(guò)相關(guān)命令接口對(duì)被測(cè)終端實(shí)現(xiàn)自動(dòng)化測(cè)試及控制。
系統(tǒng)模擬器實(shí)現(xiàn)基于LTE的車聯(lián)網(wǎng)無(wú)線通信技術(shù)的底層協(xié)議棧功能，系統(tǒng)模擬器與終端之間通過(guò)空口進(jìn)行通信。
測(cè)試系統(tǒng)如需被測(cè)實(shí)體反饋測(cè)試過(guò)程中相關(guān)測(cè)試狀態(tài)或測(cè)試結(jié)果信息，被測(cè)實(shí)體通過(guò)以太網(wǎng)反饋相關(guān)信息。
測(cè)試系統(tǒng)(TS)
PC主機(jī)
系統(tǒng)模擬器
測(cè)試控制、測(cè)試日志
TTCN-3代碼
編解碼器
系統(tǒng)適配器(SA)
平臺(tái)適配器(PA)
系統(tǒng)接口
底層協(xié)議
棧實(shí)體
LAN連接
V2X空口
被測(cè)實(shí)體(DUT)
測(cè)試控制/測(cè)試結(jié)果反饋
注：被測(cè)實(shí)體可以是OBU或者RSU中任何一種。
圖1 測(cè)試系統(tǒng)架構(gòu)
4.2 測(cè)試約定
本標(biāo)準(zhǔn)中涉及的測(cè)試用例及場(chǎng)景需遵循如下約定：
· 每個(gè)測(cè)試用例僅一次測(cè)試一臺(tái)待測(cè)無(wú)線設(shè)備，不支持同時(shí)測(cè)試多臺(tái)無(wú)線設(shè)備；
· 本標(biāo)準(zhǔn)中提及的“DSM消息”除特殊說(shuō)明外，均指數(shù)據(jù)包類型為“Non-IP”的不包含“DSMP擴(kuò)展域指示”(即DSMP Extension Indicator取值為0)的DSM消息；
· 本標(biāo)準(zhǔn)中除特殊說(shuō)明外，MIB中DSM消息長(zhǎng)度(DsmMaxLength)值為1400字節(jié)；
· 基于LTE的車聯(lián)網(wǎng)無(wú)線通信技術(shù)專用業(yè)務(wù)公告(DSA)測(cè)試相關(guān)內(nèi)容不在本標(biāo)準(zhǔn)定義范圍內(nèi)；
· 本標(biāo)準(zhǔn)中涉及的測(cè)試用例除特殊說(shuō)明外均采取圖2所示內(nèi)容實(shí)施具體測(cè)試工作。
