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Different V2X scenarios require the transport of V2X messages with different performance requirements for the 3GPP
system. This Technical Specification specifies service requirements to enhance 3GPP support for V2X scenarios in the
following six areas:
General Aspects: interworking, communication-related requirements valid for all V2X scenarios
Vehicle quality of service Support
Vehicles Platooning enables the vehicles to dynamically form a group travelling together. All the vehicles in the platoon
receive periodic data from the leading vehicle, in order to carry on platoon operations. This information allows the
distance between vehicles to become extremely small, i.e., the gap distance translated to time can be very low (sub
second). Platooning applications may allow the vehicles following to be autonomously driven.
Advanced Driving enables semi-automated or fully-automated driving. Longer inter-vehicle distance is assumed. Each
vehicle and/or RSU shares data obtained from its local sensors with vehicles in proximity, thus allowing vehicles to
coordinate their trajectories or maneuvers. In addition, each vehicle shares its driving intention with vehicles in
proximity. The benefits of this use case group are safer traveling, collision avoidance, and improved traffic efficiency.
Extended Sensors enables the exchange of raw or processed data gathered through local sensors or live video data
among vehicles, RSUs, devices of pedestrians and V2X application servers. The vehicles can enhance the perception of
their environment beyond what their own sensors can detect and have a more holistic view of the local situation.
Remote Driving enables a remote driver or a V2X application to operate a remote vehicle for those passengers who
cannot drive themselves or a remote vehicle located in dangerous environments. For a case where variation is limited
and routes are predictable, such as public transportation, driving based on cloud computing can be used. In addition,
access to cloud-based back-end service platform can be considered for this use case group.
Vehicle quality of service support enables a V2X application to be timely notified of expected or estimated change of
quality of service before actual change occurs and to enable the 3GPP System to modify the quality of service in line
with V2X application's quality of service needs. Based on the quality of service information, the V2X application can
adapt behaviour to 3GPP System's conditions. The benefits of this use case group are offerings of smoother user
experience of service.
A relevant aspect of advanced V2X applications is the Level of Automation (LoA), which reflects the functional aspects
of the technology and affects the system performance requirements. In accordance with the levels from SAE , the
LoA are: 0 - No Automation, 1 - Driver Assistance, 2 - Partial Automation, 3 - Conditional Automation, 4 - High
Automation, 5 - Full Automation.
A distinction is drawn between lower levels and higher levels based on whether the human operator or the automated
system is primarily responsible for monitoring the driving environment.
The 3GPP system provides the performances expected for all levels of automation.
full Table of Contents for TS 22.186 Word version: 16.2.0