Wireless Device Network Selection Policy
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing network congestion by regularly updating policies on a large number of handsets to redirect traffic to less congested access networks.
Innovation Solution
A wireless communication device and system that automatically selects an available wireless access network based on policies that specify access capabilities, allowing devices to dynamically switch to higher priority networks that meet defined criteria such as capacity and interworking capabilities, without requiring constant network intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network regularly pushes new policies to a large number of handsets to redirect traffic to less congested access networks, then network congestion can be alleviated, but the complexity and overhead of policy management increases significantly
Solution Approach 1:
The wireless communication device autonomously monitors network conditions and automatically selects optimal access networks based on locally stored policies, eliminating the need for continuous network-initiated policy pushes. The device serves itself by making intelligent routing decisions without requiring constant network intervention.
Solution Approach 2:
Policies are pre-provisioned in the device before network congestion occurs. The device has advance knowledge of preferred access networks and their characteristics, allowing it to proactively route traffic to less congested networks without waiting for real-time network directives.
2Adaptability or versatility
If the network pushes policy updates to all handsets frequently, then access network selection can be optimized, but the amount of network overhead and signaling traffic increases
Solution Approach 1:
The device independently monitors available access networks and evaluates them against stored policies, making autonomous selection decisions without requiring frequent network broadcasts or signaling messages. This self-driven approach eliminates the need for continuous network overhead.
Solution Approach 2:
Instead of continuous or frequent policy pushes, the system uses periodic or event-triggered updates only when necessary. The device checks for policy updates at appropriate intervals or when specific network conditions change, reducing overall network traffic while maintaining optimization.
3Reliability
If the device continuously monitors and evaluates available access networks, then the quality of data services can be improved, but the energy consumption of the device increases
Solution Approach 1:
The device performs partial monitoring and evaluation rather than continuous comprehensive analysis. It monitors only critical parameters relevant to current policies and selects networks based on pre-defined criteria, avoiding unnecessary energy-intensive continuous evaluation of all possible network parameters.
Solution Approach 2:
Access network characteristics and policy criteria are pre-evaluated and stored in the device before actual data transmission occurs. This preliminary preparation reduces the computational and energy burden during active data services, as the device only needs to match current conditions against pre-processed information.
Data Source
AI summary
A wireless communication system 5 comprises a wireless communication device arranged to detect multiple wireless access networks available for connection to the wireless communication device for providing data services. The device is arranged to discover one or more access capabilities of at least one of the detected wireless access networks, and compares the discovered access capabilities with a mobility policy so as to select an available wireless access networks for connection. Access capabilities may include aspects such as IP protocols and ports allowed by an access network, and capacity constraints such as available uplink and downlink transmission rates.