ACR Selection Coordination for 5G Service Continuity
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Solution Overview
Problem
Existing mobile communication systems face challenges in efficiently managing application context relocation (ACR) across different network nodes and devices, particularly in 5G and NR environments, leading to disruptions in service continuity.
Innovation Solution
The implementation of ACR selection and coordination systems, including ACR selection functions (ASF) and ACR coordination functions (ACF), which utilize processors to manage ACR procedures based on device and network capabilities, ensuring seamless service continuity by selecting and coordinating ACR events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ACR procedures are implemented to ensure service continuity, then service continuity is improved, but system complexity increases
Solution Approach 1:
The patent segments the ACR management into distinct functional components: ACR selection functions (ASF) that determine which ACR procedures to use, and ACR coordination functions (ACF) that manage the execution. This segmentation allows each component to handle specific aspects of ACR independently, reducing overall system complexity while maintaining service continuity.
Solution Approach 2:
The patent introduces intermediary functions between the WTRU and network nodes that specialize in ACR selection and coordination. These intermediary functions act as mediators that handle the complexity of ACR procedures, allowing the main system to focus on core functions while maintaining service continuity through specialized ACR management layers.
2Adaptability or versatility
If multiple ACR procedures are supported for different network nodes, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent implements universal ACR selection and coordination functions that can handle multiple ACR procedures for different network nodes through a single unified framework. The ASF and ACF functions are designed to be multi-functional, supporting various ACR procedures (e.g., ACT, AC-RAN) without requiring separate dedicated mechanisms for each procedure type, thereby improving adaptability while controlling complexity.
Solution Approach 2:
The patent employs dynamic ACR selection where the system can adaptively choose which ACR procedure to execute based on current network conditions, node capabilities, and service requirements. This dynamic approach allows the system to leverage multiple ACR procedures for different scenarios while maintaining a manageable complexity level through intelligent selection rather than implementing all procedures simultaneously.
3Reliability
If ACR selection and coordination functions are added, then service continuity is improved, but network infrastructure complexity increases
Solution Approach 1:
The patent merges the ACR selection and coordination functions into existing network node functionalities rather than creating entirely separate infrastructure components. The ASF and ACF functions are integrated with existing network node capabilities, allowing ACR management to be handled through combined functions that leverage existing infrastructure while improving service continuity.
Data Source
AI summary
Systems, methods, and instrumentalities may be provided for application context relocation (ACR) selection and/or coordination. Configuration information associated with one or more of a first network node, a second network node, and an application client (AC) may be received. The first network node and the second network node may be determined using the configuration information. The second network node may provide a service and may be associated with the first network node. One or more application context relocation (ACR) procedures for providing continuity for the service may be determined. These procedures may be based on a WTRU capability, a first network node capability, and a second network node capability. A selection request message may be sent to the first network node. The selection request message indicates an identifier for the second network node, a WTRU identifier, and the determined one or more ACR procedures. A selection response message may be received from the first network node. The message may indicate a request process status result.