Anchor Tree AR Rendering in 5G Wireless Systems
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Solution Overview
Problem
Current wireless communication systems lack an efficient method to provide augmented reality (AR) services based on physical locations, particularly in 5G communication systems, where accurate rendering of AR content is challenging due to the need for precise anchoring of virtual objects in real-world environments.
Innovation Solution
A method and apparatus that utilize an anchor tree structure to identify, fetch, and render AR content based on the physical distance and orientation of user equipment (UE) with respect to anchor trees, such as buildings or landmarks, using location information and metadata for accurate placement and rendering of AR objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional AR rendering methods are used without physical location anchoring, then the system complexity is reduced, but the accuracy and realism of AR content placement deteriorates
Solution Approach 1:
The patent introduces an anchor tree structure as an intermediary between the physical environment and AR content. The anchor tree includes multiple anchor points with associated metadata (position, orientation, distance) that mediate the relationship between UE location and AR rendering, enabling accurate placement without direct complex calculations between all components
Solution Approach 2:
The system segments the AR rendering process into distinct components: location information acquisition, anchor tree structure establishment, parameter extraction (distance, orientation), and conditional rendering. This segmentation allows each component to be optimized independently while maintaining overall accuracy
2Reliability
If AR content is rendered for all anchor trees in the area, then the completeness of AR service is improved, but the loss of energy increases
Solution Approach 1:
The patent applies local quality by rendering AR content selectively based on local conditions. The UE evaluates distance and orientation parameters relative to each anchor tree, and only renders content for anchor trees that satisfy specific conditions (e.g., within distance threshold, proper orientation). This avoids unnecessary rendering for all anchor trees while maintaining service completeness where needed
Solution Approach 2:
The system performs partial action by rendering AR content for only a subset of anchor trees that meet the rendering conditions, rather than all anchor trees in the area. The condition judgment mechanism allows the system to perform exactly the necessary rendering actions without excessive energy consumption
3Manufacturing precision
If location information is frequently updated to maintain accurate AR rendering, then the AR content accuracy is improved, but the productivity of the system deteriorates
Solution Approach 1:
The system performs preliminary action by establishing the anchor tree structure and pre-calculating parameters (position, orientation, distance relationships) before actual AR rendering. This preparation work is done once or infrequently, and then the pre-established structures are used for efficient real-time rendering decisions without requiring frequent updates
Data Source
AI summary
A method performed by a user equipment (UE) in a wireless communication system is provided. The method includes transmitting, to a server, location information of the UE and a message for requesting a parameter related to one or more first anchor trees corresponding to a location of the UE, in response to the message for requesting the parameter, receiving, from the server, the parameter related to the one or more first anchor trees, based on the received parameter and the location information, identifying at least one second anchor tree, on which an AR content is renderable, among the one or more first anchor trees, requesting the server for an AR content corresponding to the identified at least one second anchor tree, receiving the requested AR content from the server, and rendering the received AR content on the at least one second anchor tree.