Context-Aware Policy Exchange Across WLAN and Cellular Networks
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Solution Overview
Problem
Existing network policies are rigid and fail to consider contextual factors, leading to inconsistent enforcement across different networks, especially when devices connect to multiple networks, and do not account for spatial and temporal contexts, resulting in inadequate Quality of Service (QoS) management.
Innovation Solution
A method and system for configuring and enforcing spatial and temporal policies across wireless local area networks (WLANs) and cellular systems, enabling the sharing of contextual values such as location and time-based information to ensure uniform policy application, using a policy engine that identifies and applies appropriate policies based on the context provided by user equipment (UE) connected to both networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If existing rigid network policies are applied across multiple networks, then policy enforcement is simplified, but consistency and adaptability to different contexts deteriorate
Solution Approach 1:
The patent implements dynamic policy enforcement by associating policies with temporal and spatial contexts. The system automatically adjusts policy application based on the current time, location, and network conditions, transforming static rigid policies into dynamic adaptive ones that maintain consistency across multiple networks while adapting to contextual differences.
Solution Approach 2:
The system changes the parameters of policy enforcement by introducing temporal (time-based) and spatial (location-based) dimensions. Policies are no longer applied uniformly but are modified based on contextual parameters such as current location coordinates, time of day, and network environment, enabling adaptability without sacrificing enforcement consistency.
2Device complexity
If network policies ignore spatial and temporal contexts, then policy complexity is reduced, but Quality of Service management deteriorates
Solution Approach 1:
The patent segments policy enforcement into distinct temporal and spatial components. By dividing the policy framework into time-based rules and location-based rules, the system manages complexity through modular organization while improving QoS management through context-aware decision-making at each segment.
Solution Approach 2:
The system introduces contextual information (temporal and spatial data) as an intermediary between the policy rules and the network operations. This intermediary layer processes location and time data to determine which policies should be applied, reducing the apparent complexity while enhancing QoS management through informed policy selection.
3Adaptability or versatility
If devices connect to multiple networks without context sharing, then network connectivity is improved, but policy consistency deteriorates
Solution Approach 1:
The patent implements a universal context-sharing mechanism that works across multiple different network types (Wi-Fi, cellular, Bluetooth). The same contextual framework and policy enforcement logic is applied universally across all networks, enabling devices to maintain consistent policy compliance while connecting to diverse networks with different characteristics.
Data Source
AI summary
Techniques for policy exchange are provided. A wireless local area network (WLAN) system configures a first policy to apply to devices connecting to the WLAN system, where the first policy is associated with a first event context. The WLAN system then transmits, to a cellular system, the first event context and an indication of the first policy. The WLAN system further receives a first connection from a first user equipment (UE). Finally, The WLAN system transmits a first response to the first UE specifying the first event context, where the cellular system, upon receiving the first event context from the first UE, identifies and applies the first policy based on the first event context.