Multi-DNS IP Routing for Home PDU Session Breakout
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently routing Domain Name System (DNS) queries in a home routing protocol data unit (PDU) session with session breakout (SBO) due to limited IP address utilization, leading to suboptimal performance and resource allocation.
Innovation Solution
A user equipment (UE) is provided with multiple IP addresses, including one associated with a Home Edge Application Server Discovery Function (H-EASDF) server or a generic DNS server and another with a Visitor Edge Application Server Discovery Function (V-EASDF) server, enabling efficient routing of DNS queries to these servers based on the available IP addresses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single IP address is used for DNS query routing in home routing PDU session with session breakout, then device complexity is reduced, but DNS query routing efficiency deteriorates
Solution Approach 1:
The patent segments the DNS query routing function by dividing DNS queries into two categories: edge computing application queries routed via V-EASDF server IP address, and non-edge computing queries routed via H-EASDF server IP address. This segmentation enables efficient routing without requiring complex device configuration, as the UE simply needs to identify whether a query is for an edge computing application.
Solution Approach 2:
The patent implements dynamic IP address selection based on the type of application being accessed. The UE dynamically chooses between V-EASDF server IP address and H-EASDF server IP address depending on whether the application is an edge computing application or not. This dynamic approach optimizes routing efficiency without permanently increasing device complexity.
2Productivity
If multiple IP addresses are provided to user equipment for different DNS servers, then DNS query routing efficiency is improved, but device complexity increases
Solution Approach 1:
The patent applies local quality by assigning different IP address configurations to different types of applications. Edge computing applications use the V-EASDF server IP address for local routing, while non-edge computing applications use the H-EASDF server IP address. This localized approach optimizes routing for each application type without requiring the entire device to manage complex multi-IP configurations.
Solution Approach 2:
The UE performs self-service by automatically determining whether an application is an edge computing application and selecting the appropriate IP address accordingly. The device autonomously manages the multiple IP addresses without requiring external configuration or intervention, thereby improving routing efficiency while keeping device complexity manageable through automated decision-making.
3Ease of operation
If DNS queries are routed through home EASDF server only, then device operation is simplified, but resource utilization deteriorates
Solution Approach 1:
The patent implements preliminary action by pre-configuring the UE with both V-EASDF server IP address and H-EASDF server IP address before DNS queries are generated. The device is prepared in advance with multiple routing options, allowing it to efficiently route queries to the appropriate server based on application type without requiring complex real-time decision-making or configuration changes.
Solution Approach 2:
The V-EASDF server acts as an intermediary for edge computing application DNS queries, enabling local breakout and direct routing to edge application servers. This intermediary function allows edge computing traffic to be handled separately from non-edge traffic, improving overall network resource utilization while maintaining simple operation for both edge and non-edge applications through automated routing.
4Quantity of substance
If session breakout is implemented with multiple IP addresses, then resource utilization is optimized, but device complexity increases
Solution Approach 1:
The patent implements dynamic IP address selection that adapts to the application type. The UE dynamically switches between V-EASDF server IP address and H-EASDF server IP address based on whether the application requires edge computing capabilities. This dynamic approach optimizes network resource utilization by enabling session breakout for edge applications while maintaining simple routing for non-edge applications, without permanently increasing device complexity.
Solution Approach 2:
The patent changes the routing parameter (IP address selection) based on the application type parameter. When an application is identified as an edge computing application, the routing parameter changes to use the V-EASDF server IP address for session breakout. For non-edge applications, the routing parameter remains as H-EASDF server IP address. This parameter-based approach optimizes resource utilization while keeping device complexity manageable through automated parameter selection.
Data Source
AI summary
Aspects relate to the management of multiple internet protocol (IP) addresses. In a first aspect, a UE receives a first IP address associated with one of a Home Edge Application Server Discovery Function (H-EASDF) server or a generic domain name system (DNS) server, and a second IP address associated with a V-EASDF server. The UE then transmits a DNS query associated with an edge computing application to one of the first or second IP address based on logic (e.g., instructions) residing in the UE. In another aspect, a core network node receives an IP address associated with a V-EASDF server, and transmits a communication to a user equipment that includes a first and second IP address. Here, the first IP address is associated with one of an H-EASDF server or a generic DNS server, whereas the second IP address is the IP address associated with the V-EASDF server.