XR Rendering Offloading Signaling Using UE Capability Indicators
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing extended reality (XR) rendering offloading, particularly in handling the capabilities and data exchange between user equipment (UE) and network nodes, which affects the quality and efficiency of XR services.
Innovation Solution
Implementing a method and apparatus for wireless communication that involves receiving and transmitting UE capability indicators for rendering offloading, allowing for optimized data exchange and rendering based on these indicators, thereby enhancing the XR experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If rendering offloading is implemented in wireless communication systems, then XR service quality and efficiency are improved, but system complexity and coordination overhead increase
Solution Approach 1:
The rendering process is segmented into two parts: rendering data generation (performed by network node or remote device) and rendering execution (performed by UE). This segmentation allows complex rendering computations to be distributed, improving overall XR service efficiency while managing system complexity through clear functional separation.
Solution Approach 2:
A capability indicator mechanism is introduced as an intermediary to coordinate between UE and network node. The UE transmits its rendering offloading capability indicator to the network node, which uses this information to determine appropriate rendering data transmission strategies, thereby simplifying the coordination overhead.
2Adaptability or versatility
If UE capability indicators are transmitted and processed, then data transmission is optimized according to UE capabilities, but communication overhead increases
Solution Approach 1:
The rendering offloading capability indicator is extracted as a separate, dedicated signaling element from general UE capability reports. This extraction allows the network to efficiently identify and process rendering-specific capabilities without being burdened by comprehensive capability information, reducing communication overhead while maintaining adaptability.
Solution Approach 2:
The capability indicator uses parameter changes (specifically, presence or absence of rendering offloading capability flags) to convey critical information about UE rendering capabilities. This parameter-based approach enables efficient data transmission optimization with minimal signaling overhead.
3Manufacturing precision
If rendering data is transmitted to UE for local rendering, then rendering quality improves, but network bandwidth consumption increases
Solution Approach 1:
The system dynamically adapts rendering data transmission based on UE capability indicators and network conditions. When UE rendering capability is high, more rendering data is transmitted locally to improve quality. When capability is limited or network bandwidth is constrained, the system adjusts the rendering data transmission strategy, thereby optimizing the trade-off between rendering quality and bandwidth consumption.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an extended reality (XR) device may receive a user equipment (UE) capability indicator identifying a rendering offloading capability of a UE. The XR device may transmit, to the UE, data for rendering at the UE based at least in part on receiving the UE capability indicator. The XR device may receive, from the UE, rendered data as a response to transmitting the data for rendering at the UE. Numerous other aspects are described.