Real-Time Media Workflow Splitting for Adaptive 5G Edge Rendering
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Solution Overview
Problem
Existing 5G mobile communication systems face challenges in efficiently handling real-time media transmission, particularly for augmented reality (AR) and 3D media, due to high processing requirements and latency issues, especially when using edge servers for split rendering, as they do not adapt to real-time changes in channel and terminal environments.
Innovation Solution
A method and device for real-time media communication that involves a real-time media communication application function (AF) to dynamically adjust workflow splits between user equipment (UE) and an edge server based on processing delays, using control information to optimize media processing between the UE and the edge server.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If workflow split is fixed between UE and edge server, then system complexity is reduced, but adaptability to real-time changes in channel and terminal environments deteriorates
Solution Approach 1:
The patent implements dynamic workflow split adjustment where the RTC AF continuously monitors processing delays and adaptively changes the workflow split between UE and edge server based on real-time conditions. This transforms the static configuration into a dynamic system that automatically adapts to changing channel and terminal environments, resolving the contradiction between system complexity and adaptability.
Solution Approach 2:
The patent establishes a feedback mechanism where processing delay information is collected from the UE and AS, transmitted to the RTC AF, which then adjusts the workflow split accordingly. This closed-loop feedback system enables the network to respond to real-time performance metrics and optimize the workflow split dynamically without requiring complex manual configuration.
2Adaptability or versatility
If more processing is performed at UE, then adaptability is improved, but power consumption and latency worsen
Solution Approach 1:
The patent changes the processing parameter by dynamically adjusting the workflow split based on measured processing delays. When UE processing delay exceeds thresholds, the system transitions parameters to shift more processing to the edge server, thereby reducing UE power consumption while maintaining overall processing adaptability through network-side control.
3Adaptability or versatility
If workflow split is dynamically adjusted, then adaptability to real-time changes is improved, but system complexity and control overhead worsen
Solution Approach 1:
The patent introduces the RTC AF as an intermediary entity that centralizes the control logic for dynamic workflow split adjustment. This mediator collects delay information from UE and AS, makes decisions about workflow split changes, and manages the complexity of real-time adaptations, thereby enabling real-time adaptability without distributing complex control logic across multiple entities.
4Use of energy by moving object
If processing is centralized at edge server, then UE power consumption is reduced, but transmission latency worsens
Solution Approach 1:
The patent dynamically adjusts the workflow split based on real-time processing delay measurements. When edge server processing causes excessive latency, the system transitions to increase UE processing share, thereby balancing power consumption benefits with latency requirements through continuous adaptation rather than static centralized processing.
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method of operating a real-time media communication (RTC) application function (AF), according to an embodiment of the present disclosure, may comprise the steps of: receiving, from a service provider, control information related to a service; determining, on the basis of the control information, initial values of workflow split for the service; transmitting information related to the workflow split to at least one of user equipment (UE) and an RTC application server (AS); modifying the workflow split on the basis of delay information related to processing of the service; and transmitting information related to the modified workflow split to at least one of the UE and AS.