WLAN Offload Guidance for Edge Computing Traffic Routing
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Solution Overview
Problem
In New Radio (NR) wireless networks, user equipment (UE) faces challenges in efficiently offloading edge computing traffic to non-3GPP access networks, such as WLAN, due to the lack of dynamic control over alternate paths, leading to potential performance degradation if the Internet protocol (IP) point-of-presence is far away, and existing policies do not adequately manage edge computing traffic offload to non-3GPP access networks.
Innovation Solution
The introduction of a WLAN Offload Guidance component in the user equipment (UE) route selection descriptor (RSD) rules, which allows conditional offloading based on round-trip time (RTT) measurements between the UE and the edge application server, ensuring that traffic is only offloaded to non-3GPP access if it provides better performance than the 3GPP link, with optional static guidance or priority orders for interface selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If edge computing traffic is offloaded to non-3GPP access networks, then network efficiency and user experience are improved, but performance degradation occurs when the IP point-of-presence is far away
Solution Approach 1:
The patent implements dynamic offload guidance by measuring round-trip time (RTT) between the UE and edge application server, and comparing it against threshold values. The offload decision is made dynamically based on real-time RTT measurements rather than static configuration, allowing the system to adapt to changing network conditions and select the optimal access path (3GPP or non-3GPP) based on current performance metrics
Solution Approach 2:
The patent employs feedback mechanisms through RTT measurements that continuously monitor the performance of edge computing traffic paths. The measured RTT values are fed back to the UE to determine whether offloading to non-3GPP access should be permitted, creating a closed-loop control system that adjusts traffic routing based on actual performance observations
2Productivity
If dynamic offload guidance based on RTT measurements is implemented, then traffic routing is optimized, but device complexity increases
Solution Approach 1:
The UE autonomously performs RTT measurements and makes offload decisions based on comparing measured values against threshold criteria. The device uses its own resources (measurement functions, processing capability) to independently determine optimal routing without requiring complex external control systems or manual configuration, reducing the burden on network infrastructure
3Ease of manufacture
If existing URSP rules are used for traffic routing, then implementation is simple, but adequate management of edge computing traffic offload is not achieved
Solution Approach 1:
The patent extends the existing URSP framework by adding offload guidance parameters that can be applied to various edge computing scenarios. The enhanced URSP rules maintain compatibility with existing 3GPP specifications while adding new capabilities for non-3GPP access selection, making the system universally applicable to different edge computing use cases without requiring complete redesign
Data Source
AI summary
The present application relates to devices and components including apparatuses, systems, and methods for technologies for offloading paths from edge computing resources.