Virtual Domain Descriptors for WTRU Service Continuity
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Solution Overview
Problem
Current systems lack effective methods for a wireless transmit/receive unit (WTRU) to select appropriate network interfaces and Domain Name Servers (DNS) when relocating, particularly in edge computing environments.
Innovation Solution
A method and WTRU for receiving domain identifiers and descriptors, selecting network resources based on domain selection by an application, and identifying and selecting resources that match both sets of descriptors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a WTRU relocates to a new access point in edge computing environment, then service continuity should be maintained, but the system lacks effective methods for selecting appropriate network interfaces and DNS servers
Solution Approach 1:
The system performs preliminary actions by receiving and storing domain descriptors before relocation occurs. When the WTRU relocates, these pre-stored descriptors enable immediate network resource selection without requiring complex real-time discovery, thus maintaining service continuity while simplifying the operation during relocation
Solution Approach 2:
Domain descriptors act as intermediaries between the WTRU and network resources. These descriptors contain domain identifiers and service information that mediate the selection process, enabling the WTRU to automatically select appropriate network interfaces and DNS servers without complex manual configuration or complex automated protocols
2Adaptability or versatility
If the WTRU re-selects edge service instances when changing access point and IP router, then adaptability to new network conditions is improved, but the complexity of determining appropriate network resources increases
Solution Approach 1:
The system receives and caches domain descriptors in advance, containing domain identifiers and service information. When relocation occurs, the WTRU compares new domain identifiers with cached descriptors to quickly determine appropriate network resources, enabling adaptable re-selection without complex real-time determination processes
Solution Approach 2:
The system uses domain descriptors as simplified copies or representations of complex network resource information. Instead of directly managing complex network resource details, the WTRU works with these descriptor copies containing essential domain identifiers and service information, reducing the complexity of network resource determination while maintaining adaptability
Data Source
AI summary
A wireless transmit/receive unit, WTRU, connects to a first AP, receives domain identifiers, requests corresponding descriptors and receives a list of descriptors. An application on the WTRU requests a list of domains and attributes corresponding to service names or service sets, which is returned by the WTRU. The application selects one or more domains for communications, the WTRU selects corresponding network resources and the application connects to local services. After moving to a new location, the WTRU connects to a second AP and receives a second set of domain identifiers, selects the one matching the request from the application and provides these to the application that, with the aid of the WTRU connects to local services.