Roaming Control System Ping Mechanism for Wireless Device Tracking
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Solution Overview
Problem
Cellular telephone users experience difficulties when roaming, particularly when traveling to different countries or continents, due to compatibility issues with varying wireless network protocols, service types, and provider differences, leading to challenges in accessing and maintaining communication services.
Innovation Solution
A roaming control system that includes a communication interface and processing system to ping the Wireless Communication Device (WCD) at predetermined intervals, record its location if a response is successful, provide control information to the visited network, and broaden the search scope if unsuccessful, facilitating communication and service access across different wireless access networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system pings the WCD at predetermined time intervals to track location, then communication reliability is improved, but system complexity increases
Solution Approach 1:
The system implements periodic pinging of the WCD to receive location feedback and adjust tracking accordingly. The feedback mechanism allows the system to maintain reliable communication by continuously updating the WCD's location information while managing complexity through intelligent query timing and response processing.
Solution Approach 2:
The system performs preliminary location tracking through periodic pinging before communication issues arise. By establishing and maintaining location awareness in advance, the system prepares necessary routing and protocol information ahead of time, reducing the complexity of real-time problem resolution.
2Ease of operation
If the system provides WCD roaming control information to visited networks, then service accessibility is improved, but network compatibility challenges increase
Solution Approach 1:
The system acts as an intermediary between the WCD and visited networks, providing roaming control information that facilitates compatibility. This intermediary function translates and adapts communication protocols, serving as a bridge that enables service accessibility across different network types while managing the complexity of protocol differences.
Solution Approach 2:
The system dynamically adjusts communication parameters and protocol settings based on the visited network's characteristics. By changing parameters such as timing intervals, data formats, and communication protocols to match the local network environment, the system achieves service accessibility without requiring complete protocol compatibility.
3Reliability
If the system broadens search scope when ping is unsuccessful, then location tracking reliability is improved, but time consumption increases
Solution Approach 1:
The system dynamically adjusts the search scope and ping intervals based on previous success rates and network conditions. When pinging is unsuccessful, the system temporarily broadens the search scope to maintain reliability, but then optimizes the search parameters to reduce time consumption in subsequent operations.
Solution Approach 2:
The system employs periodic pinging at optimized time intervals rather than continuous searching. This periodic action maintains location tracking reliability through regular updates while minimizing time consumption by avoiding constant searching. The period is adjusted based on network conditions and WCD responsiveness.
Data Source
AI summary
A roaming control system and method for a roaming WCD while roaming away from the home wireless access network are provided. The roaming control system in one example embodiment includes a communication interface configured to exchange communications with the WCD and with other wireless access networks and a processing system coupled to the communication interface, with the processing system configured to ping the roaming WCD at predetermined time intervals, if the ping was successful, record a WCD roaming location using a ping response, if the ping was successful, provide WCD roaming control information to a visited wireless access network where the roaming WCD is currently located, and if the ping was unsuccessful, then broaden a search scope and repeat the pinging.