PDN Connectivity Management for Local Gateway Access
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Solution Overview
Problem
Existing wireless communication systems face challenges in managing packet data network (PDN) connectivity, particularly in determining whether to establish connections with access points that allow local internet protocol (IP) access and selected IP traffic offload, leading to unnecessary signaling and resource inefficiencies.
Innovation Solution
The system receives parameters specifying allowed PDN connectivity with access points, enabling devices to determine whether to initiate connections based on these parameters, thereby preventing unnecessary signaling and optimizing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If devices attempt to establish PDN connections with all access points, then connectivity coverage is improved, but signaling overhead increases and resource efficiency deteriorates
Solution Approach 1:
The network entity pre-configures PDN connectivity parameters and access point information in the device before connection attempts. This preliminary provisioning enables the device to make informed connection decisions without extensive trial-and-error signaling, thereby reducing signaling overhead while maintaining connectivity coverage.
Solution Approach 2:
The system implements feedback mechanisms where the network entity provides connectivity parameters based on device location, subscription information, and network conditions. This feedback loop enables devices to selectively establish connections only with appropriate access points, optimizing the balance between coverage and signaling efficiency.
2Speed
If devices establish PDN connections without parameter verification, then connection speed is improved, but resource management efficiency deteriorates
Solution Approach 1:
PDN connectivity parameters including access point identifiers, allowed PDN types, and local gateway information are pre-provisioned in the device. This preliminary configuration enables rapid connection establishment by eliminating the need for extensive parameter negotiation during connection attempts, thus maintaining fast connection speed while improving resource management.
Solution Approach 2:
The system dynamically adjusts PDN connectivity parameters based on network conditions, device subscription information, and current location. This dynamic parameter provisioning ensures that devices connect efficiently to appropriate access points without unnecessary signaling, balancing connection speed with resource management efficiency.
3Measurement precision
If the network provides detailed PDN connectivity parameters, then connection accuracy is improved, but information processing complexity increases
Solution Approach 1:
The PDN connectivity parameters are segmented into distinct components including access point identifiers, allowed PDN types, local gateway information, and subscription-specific constraints. This segmentation allows the device to process only relevant parameters for each connection scenario, improving connection accuracy while managing information processing complexity through structured data organization.
Data Source
AI summary
Methods and apparatuses are provided for managing packet data network (PDN) connectivity for a device. A device may receive one or more parameters specifying whether PDN connectivity to a local gateway is allowed for the device at one or more access points. The one or more parameters can be specific for the device and/or for one or more access point names. The device can determine whether to initiate a PDN connection to the local gateway from at least one of the one or more access points based at least in part on the one or more parameters.