APN DNN Selection Priority Configuration in User Equipment
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Solution Overview
Problem
In mobile communication networks, User Equipment (UE) faces indeterminate APN/DNN selection behaviors due to varying APN/DNN values from multiple input sources, leading to operation errors and potential inability to obtain desired data services.
Innovation Solution
A new configuration parameter is introduced that allows the mobile communication network to indicate the order and priority of reading APN/DNN parameters from multiple input sources, guiding the UE to select the correct input source and enabling network-based modification of APN/DNN selection based on deployment and policy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the UE reads APN/DNN parameters from multiple input sources, then the UE has more flexibility in parameter acquisition, but the APN/DNN selection behavior becomes indeterminate and operation errors may occur
Solution Approach 1:
The patent introduces a dynamic priority mechanism where the UE can adjust the reading priority of different input sources based on network conditions and policies. The network can dynamically modify the priority order through RRC signaling, allowing the system to adapt between flexibility and reliability requirements depending on the operational context
Solution Approach 2:
The patent changes the parameter structure by introducing a priority indicator parameter that accompanies each APN/DNN parameter from different input sources. This additional parameter enables the UE to deterministically select parameters based on priority levels rather than using indeterminate selection behavior, thus resolving the reliability issue while maintaining multi-source acquisition capability
2Adaptability or versatility
If the UE uses APN/DNN values from different input sources, then the UE can access various data services, but the UE's APN/DNN selection behavior becomes indeterminate leading to operation errors
Solution Approach 1:
The patent applies preliminary action by having the network pre-configure the priority order of input sources before the UE needs to select APN/DNN parameters. This preliminary prioritization eliminates the need for complex runtime decision-making by the UE, making the selection process deterministic and error-free while still allowing access to multiple data services
3Adaptability or versatility
If the network provides APN/DNN parameters from multiple sources, then the network can support diverse data services, but the UE cannot determine which input source to read the APN/DNN parameter
Solution Approach 1:
The patent introduces a priority indicator as an intermediary element that mediates between the multiple input sources and the UE's parameter selection logic. This intermediary provides a clear, unambiguous signal to the UE about which source to prioritize, simplifying the detection and measurement process while maintaining support for diverse data services from multiple sources
Data Source
AI summary
A Mobile communication network having a wireless transceiver, configured to perform wireless transmission and reception to and from a UE, and a controller, coupled to the wireless transceiver. The controller is configured to: send a message to the UE via the wireless transceiver, wherein the message comprises information for indicating an order and a priority of reading Access Point Name (APN) parameters or Data Network Name (DNN) parameters from a plurality of input sources, and wherein each input source comprises an APN value or a DNN value. The message comprises an IP Multimedia Subsystem (IMS) Management Object (MO), and the information is provided by an IMS configuration parameter in the IMS MO.