Page 17 - Use cases and requirements for the vehicular multimedia networks - Focus Group on Vehicular Multimedia (FG-VM)

multimedia system (TM-Box), and (c) any other integrated solutions customized by automotive
manufacturers such as just a HUT.
Note that a T-box alone as defined in Q.27 could not satisfy the requirements of a vehicle multimedia
system, which include but is not limited to the connectivity requirements and the multimedia
processing requirements. Nevertheless, the connectivity capability of the T-box could be used to
partially satisfy the connectivity requirements of the vehicle multimedia system. In such a case, option
(a) as described above is a sound solution for the vehicle multimedia system, where HUT together
with T-Box fulfils all the requirements of a vehicle multimedia system.
A VMN application is either a pre-installed or a downloaded application on the VMS available in the
vehicle. The VMS application makes use of the VMS capabilities to present the VMNS to end-user(s)
in the vehicle. The VMN application is configured to retrieve the VMS capabilities and connect to
the VMNS. There may be multiple VMN applications in a vehicle and at different seat/screen
positions.

Other system inputs such as those from the advanced driver assistance system (ADAS), body control
module (BCM), etc., are processed by the VMU mainly for display. Nevertheless, for autonomous
driving capable vehicles, the interaction between autonomous driving domains/function blocks or
ADAS and the VMS need to be addressed in detail in the future. For example, the system could limit
some VMS functions (e.g., no broadcasting or no conference calls) based on ADAS domain input
that the vehicle is operating at level 3 or below, while it would be allowed for level 4/5 particularly
for the driver's position.

Nomadic devices such as mobile phones and handheld wireless devices are another group of devices
whose data are processed by VMU for audio, video and control, but they are not part of the VMS.

With the development of ADAS and autonomous driving, the multimedia trend for a vehicular
multimedia system includes:
– Multi-screens;
– Multi-instruments: e.g., glass to replace the screen of the in-vehicle infotainment;
– Multi-screen interaction;

– Multi-purpose: used for entertainment, official, social, gaming, etc;
– Holographic projection will be popular in the future.

FGVM-01R1 (2019) 7