YD/T 3910-2021 English PDF (YDT3910-2021)

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YD/T 3910-2021: Vehicle emergency call system based on public telecommunication network - Technical requirements and test method of the vehicle emergency rescue platform
YD/T 3910-2021
YD
COMMUNICATION INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 33.030
M21
Vehicle emergency call system based on public
telecommunication network - Technical requirements and
test method of the vehicle emergency rescue platform
ISSUED ON: MAY 17, 2021
IMPLEMENTED ON: JULY 01, 2021
Issued by: Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 4
4 Abbreviations ... 5
5 Platform location ... 5
6 Platform technical requirements ... 6
6.1 Functional requirements ... 6
6.2 Performance requirements ... 9
6.3 Interface requirements ... 10
6.4 Security requirements ... 10
6.5 Disaster recovery and backup requirements ... 10
7 Platform test method ... 11
7.1 Test system structure ... 11
7.2 Test items ... 11
Vehicle emergency call system based on public
telecommunication network - Technical requirements and
test method of the vehicle emergency rescue platform
1 Scope
This standard specifies the technical requirements and test methods for the vehicle
emergency rescue platform of the vehicle emergency call system based on the public
telecommunications network, including platform location, platform function
requirements, performance requirements, interface requirements, security requirements,
disaster recovery requirements, test methods, etc.
This standard applies to the vehicle emergency rescue platform of the vehicle
emergency call system based on the public telecommunications network (hereinafter
referred to as the "platform").
2 Normative references
The 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.
YD/T 3909-2021 Requirements and overall architecture of a vehicle emergency
alarm system based on the public telecommunication network
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Vehicle emergency call
When the vehicle encounters an emergency, the emergency alarm call triggered by
the vehicle terminal.
3.2
Public safety answering point
It is the unified alarm receiving platform of the public security system or medical
rescue system, also known as the emergency linkage command platform.
3.3
Vehicle emergency rescue platform
The Internet of Vehicles service platform provided by third parties such as car
manufacturers or automotive remote service providers, which is responsible for the
reception, processing, distribution, storage and other tasks of emergency alarms.
3.4
Rescue data set
The minimum data set and extended rescue data set used for rescue service dispatch.
4 Abbreviations
CELLID: Cell identification
IDC: Internet data center
IMS: IP multimedia subsystem
PSAP: Public safety answering point
SMS: Short message service
TCU: Telematics control unit
VIN: Vehicle identification number
VoLTE: Voice over long-term evolution
5 Platform location
The vehicle emergency rescue platform refers to a platform provided by third parties
such as car manufacturers or automotive remote service providers, which is responsible
for the reception, processing, distribution, storage and other tasks of emergency alarms
in the entire system. The platform can provide vehicles with alarm information upload
and processing in emergency situations; it can be linked with the public safety
answering node (PSAP, also known as the emergency linkage command platform), to
establish three-party data/voice communication and jointly complete the processing of
emergency call affairs. The location of the vehicle emergency rescue platform in the
vehicle emergency call system is shown in Figure 1.
6.1.2 Requirements for the platform to receive vehicle alarms
The platform must have the following functional requirements for receiving vehicle
alarms:
a) It must have the function of receiving and parsing vehicle rescue data sets; the
data transmission method must support at least one of the following: "Vehicle
emergency call system based on public telecommunication network - Technical
requirements for wireless data transmission", "Vehicle emergency call system
based on public telecommunication network - Technical requirements for data
transmission based on IMS", mobile data transmission, SMS text message
transmission;
b) It must have the function of receiving vehicle voice call alarms; it must support
at least one of the vehicle voice call methods such as cellular mobile
communications and Internet voice calls;
c) It must have the function of associating rescue data set information with alarm
voices;
d) It must have the function of calling back the alarmed vehicle;
e) It must have various retransmission mechanisms; when the vehicle terminal fails
to send the rescue data set, the platform must have the function of actively
obtaining the vehicle rescue data set;
f) It must have the function of encrypting and storing the vehicle rescue data set;
g) It must have the function of handling abnormal processes, such as the vehicle
terminal only sending data without establishing voice communication, only
establishing voice communication without sending the rescue data set, the
location information uploaded by the vehicle terminal being invalid, no one
answering when the vehicle terminal automatically triggers the alarm.
6.1.3 Data set requirements
6.1.3.1 Transmission of data sets between the vehicle emergency rescue platform
and PSAP
The vehicle emergency rescue platform and PSAP shall interact with each other
according to the data sets listed in Table 1.
reach 95%, the response rate within 45 seconds shall reach 99%, the response rate
within 120 seconds shall reach 100%.
e) Call loss rate ≤ 1% (if the user actively hangs up, it will not be included in the call
loss rate).
6.3 Interface requirements
The platform and the public telecommunications network shall support voice dedicated
line and network data connection, among which the network data connection shall be
realized through the Internet dedicated line:
a) The platform shall receive information transmitted by the vehicle terminal through
the in-band modulation method (In-band) through the voice dedicated line and
make voice calls (the vehicle terminal uses cellular mobile communication);
b) The platform shall receive data transmitted by the vehicle terminal through mobile
data transmission, IMS data transmission, SMS text message transmission
through the network data connection and make voice calls (using Internet voice
call method).
6.4 Security requirements
The platform shall meet the following security requirements:
a) Physical equipment shall be deployed in a dedicated computer room, such as in a
self-built IDC or a dedicated area in a public IDC;
b) Network security measures such as firewalls, traffic monitoring software, and
anti-virus software shall be adopted;
c) Dedicated application servers and disk arrays shall be used to process and store
data; dedicated fiber switches, gateways and other related network equipment can
be used;
d) The account and password of the database/server shall be managed by a dedicated
person; the password shall be updated regularly....