Augmented reality (AR) goggles and Head-up displays (HUD) superpose contextual information relating to the user's position and motion on the user's field of view. AR goggles allow, for instance, the user to navigate, record video, identify targets and gather information about the surrounding environment for improved performance. They also allow the user to communicate with other users by sharing location and sending messages or communicate with those at home privately or on social media by sharing live video.
AR is enabled by the knowledge of the user's position, motion and eventually, direction of view, and by access, with low latency, to databases of contextual information and geo-localized information systems (GIS). All users willing to interact with each other in an AR application should be equipped and communicate among each other with low latency.
In the field of LBS, AR supports multiple applications, including outdoor sports and leisure activities (skiing, motorcycling, sailing, surfing, rally, aviation and gaming) as well as social networking. Information about the weather conditions such as strength of wind or depth of snow layer may improve performance and help prevent dangerous situations such as avalanches. AR may also support "Blue forces", like firefighters, that need to know real-time information about the fire such as temperature and severity of smoke, identify targets, safe location, etc. This area is not covered is the current use case.
At least for gaming and sports applications, the position-related data need to be secured and protected against tampering to dissuade from any attempt to fraud or cheat.
The UE comprises at least a self-powered AR goggles, associated to a 5G communication module and a 5G positioning module. The 5G modules can be integrated in the goggles or held by the user and connected to the goggles.
The users have access to the AR Application Server through a 5G Network. The AR Application Server has access to all relevant contextual information, including maps of the user's surrounding. Mapping and establishment of contextual information database are done beforehand.
The user turns on the UE, and allows the system to initialise and eventually calibrate (e.g. heading, field of view).
The 5G positioning module enables the 3GPP system to determine position, velocity and goggles heading at a high rate. The frequency of the determination may vary according to the application requirements. This information is reported to the AR Application Server to provide the AR goggles with contextual information.
While moving, the user visualises messages and contextual information on the screen of the goggle. He can use the navigation feature to find a specific location or a target, follow a friend or pursue a track (for instance, a ski track, a route, etc.). He can use the communication feature to find out where friends or colleagues are and what they want to do next. He can also share live video to social media, or to a hospital in the case of an emergency.
The user can use the additional information available on the screen of the goggle to find out where it is best to go next for a safer and more enjoyable journey. This information can be a weather report, heart rate, steepness of slopes, altitude, temperature of the surroundings, etc.
The 5G system shall be able to provide positioning service to support AR applications with [1-3] m horizontal position accuracy, 80% availability, for static or UE moving at speed below 50km/h outdoor.
The 5G system shall be able to provide positioning service to support AR applications with better than [10] m horizontal position accuracy, 80% availability, for UE moving at speed up to 130 km/h outdoor.
The 5G system shall be able to provide positioning service to support AR applications with [0.1-3] m vertical position accuracy, 80% availability.
The 5G system shall be able to provide positioning service to support AR applications with better than [2] m/s horizontal velocity accuracy and [10]° bearing accuracy, 80% availability, for UE moving at speed up to 130 km/h outdoor.
The 5G System shall be able to provide positioning service to support AR applications with a TTFF less than [10] s.
The 5G system shall be able to fulfil the requirements of the positioning service using less than [5] % of the UE's power consumption on average and less than [10] % of the UE's power consumption in the worst case.
The 5G System shall support mechanisms to protect positioning-related data against tampering and spoofing.
The 5G System shall support mechanisms to detect tampering and spoofing attempts on the position-related data.
The 5G System shall be able to ensure the positioning related data are secured, and shall allow the protection of the user's privacy.