Edge Data Network Context Relocation via UE Stored Routing
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Solution Overview
Problem
Current edge computing solutions fail to effectively transfer an application context when a user equipment (UE) moves from one Edge Data Network (EDN) to another, especially when the UE loses connection with the previous EDN, as existing methods require continuous connectivity and specific network configurations.
Innovation Solution
The UE stores a data object with routing information about the previous EDN, which includes a context identifier, allowing the new EDN to retrieve the application context without exposing internal network information, enabling seamless relocation of the application context even after disconnection from the source EDN.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE stores routing information about the previous EDN including context identifier, then the application context can be retrieved by the new EDN without exposing internal network information, but the device complexity increases due to additional storage and processing requirements
Solution Approach 1:
The patent extracts the routing information and context identifier from the full application context and stores them separately in the UE. This allows the UE to provide minimal information (only routing info and context ID) to the new EDN without exposing internal network details, thus maintaining service continuity while limiting the impact of complexity to only essential data elements.
Solution Approach 2:
The patent introduces a data object as an intermediary structure that contains routing information and context identifier. This intermediary allows the UE to mediate between the old EDN and new EDN by storing routing information and enabling context retrieval without directly exposing internal network architecture details to either EDN.
2Adaptability or versatility
If the UE stores routing information and context identifier in a data object, then the application context can be transferred after disconnection from source EDN, but the loss of time increases due to additional context retrieval operations
Solution Approach 1:
The patent applies preliminary action by having the UE store routing information and context identifier in a data object during the initial connection to the source EDN. This pre-stored information is immediately available when the UE needs to connect to a new EDN, eliminating the need for time-consuming context retrieval operations from the source EDN and enabling flexible relocation even after disconnection.
3Adaptability or versatility
If the new EDN retrieves application context using routing information from UE, then the service support is maintained without continuous connectivity to source EDN, but the loss of information increases due to potential context data loss during disconnection
Solution Approach 1:
The patent extracts only the essential routing information and context identifier from the full application context and stores them in the UE. When the UE connects to a new EDN, only this extracted minimal information is transferred, reducing the risk of information loss during disconnection while still enabling the new EDN to retrieve the complete application context through the stored routing information.
Data Source
AI summary
A method carried out in a user equipment, UE (10), for enabling transfer of application context from a first edge data network (140) to a second edge data network (150), comprising: storing (702), in the UE, a data object (60), said data object comprising: routing information to the first edge data network, and a context identifier (62), based on which the first edge data network uniquely can identify the application context of the UE on an application server in the first edge data network; uploading (708), upon connecting (706) to the second edge data network, the data object to the second edge data network to enable the second edge data network to obtain the application context in response to supplying the context identifier to the first data network.