XR Avatar Data Exchange Via Scene Descriptions for Lower Latency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Extended reality (XR) communication sessions, such as augmented reality (AR), mixed reality (MR), and virtual reality (VR), require significant processing resources to render complex scenes involving multiple participants, particularly when incorporating user avatars and interactions, leading to latency and performance issues.
Innovation Solution
A method and system for distributing and animating avatar data in XR sessions using a digital asset repository to store and manage avatar data, with authorized access and animation capabilities, reducing latency by enabling efficient distribution and rendering of avatars across participants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If avatar data is distributed through traditional methods in XR sessions, then participants can access avatar data, but latency increases and performance deteriorates
Solution Approach 1:
The patent pre-generates and distributes avatar data to participants before the XR session begins. The scene description includes pre-prepared avatar data that participants can immediately access without real-time generation delays, thus reducing latency while ensuring reliable avatar presentation.
Solution Approach 2:
The patent introduces a scene description as an intermediary data structure that contains references to avatar data stored in a digital asset repository. This intermediary enables efficient access patterns where participants retrieve avatar data through optimized paths rather than direct real-time requests, reducing latency while maintaining data reliability.
2Adaptability or versatility
If complex scenes with multiple participants and interactions are rendered in XR sessions, then interaction capabilities are enhanced, but processing resource requirements increase
Solution Approach 1:
The patent segments the XR session data into distinct components: scene description data, avatar data, animation stream data, and interaction data. Each component is processed and transmitted independently, allowing participants to efficiently manage rendering resources while maintaining complex interaction capabilities through modular data handling.
Solution Approach 2:
The patent uses avatar data copies stored in digital asset repositories that participants can access without requiring the original source device to continuously transmit data. Multiple participants receive copies of the same avatar data, reducing overall network bandwidth and processing requirements while enabling complex multi-participant interactions.
3Speed
If avatar data is stored locally on each user device, then access speed is improved, but device storage requirements and data synchronization complexity increase
Solution Approach 1:
The patent implements a universal digital asset repository that serves multiple functions: storing avatar data, managing digital rights, enabling efficient retrieval, and supporting multiple participants simultaneously. This centralized universal storage system eliminates the need for each device to maintain complete local copies, reducing synchronization complexity while maintaining fast access speeds through optimized retrieval mechanisms.
Data Source
AI summary
An example user equipment (UE) device for retrieving augmented reality (AR) media data includes: a memory configured to store media data of an AR session; and a processing system implemented in circuitry and configured to: receive a scene description for the AR session from a device executing a media function or multimedia resource function (MF/MRF) of a radio access network (RAN) to which the UE device is communicatively coupled, the scene description including data representing how to access avatar data for one or more participants in the AR session; retrieve the avatar data according to the scene description; and present the avatar data to a user of the UE device during the AR session.