Mobile Device Local Network Database for MIIS Handover Optimization
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Solution Overview
Problem
Existing methods for seamless handoffs in wireless networks, particularly involving Media Independent Information Servers (MIIS), lead to unnecessary interactivity and signaling burdens due to frequent queries for network information, often resulting in superfluous data transmission and inefficient handover processes.
Innovation Solution
A mobile device builds a local database of network information mapped with GPS coordinates and uses time-stamps to optimize MIIS queries, fetching only updates or delta information, thereby reducing unnecessary communication and improving handover efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mobile devices frequently query MIIS for network information to ensure seamless handoffs, then handover reliability is improved, but network signaling burden and traffic increase
Solution Approach 1:
The patent implements local quality by maintaining a distributed database of network information (SSID, BSSID, capability sets, authentication types) at each mobile device and network access point. This allows devices to make autonomous handover decisions using locally stored information rather than continuously querying MIIS, thereby reducing network traffic while maintaining handover reliability.
Solution Approach 2:
The patent applies preliminary action by pre-populating mobile devices with network information databases before handovers occur. Network access points proactively provide their capabilities, authentication types, and other relevant information to the MIIS database in advance. When devices need to handoff, they can immediately query this pre-prepared information without triggering additional signaling traffic during the critical handover moment.
2Measurement precision
If mobile devices query MIIS for every network change, then network information accuracy is improved, but handover speed decreases
Solution Approach 1:
By storing accurate network information locally in distributed databases at mobile devices and network access points, the system eliminates the need for real-time MIIS queries during handovers. Devices can immediately access pre-stored accurate information about available networks, their capabilities, and authentication requirements, thus maintaining precision while reducing handover time.
Solution Approach 2:
The system performs preliminary population of network information databases before handovers are needed. Network access points advance-provision their information to MIIS and to neighboring access points. This pre-computation and pre-storation of accurate network data ensures that when handovers occur, devices have immediate access to precise information without querying delays.
3Stability of the object's composition
If MIIS handles all network information requests centrally, then information consistency is improved, but system complexity increases
Solution Approach 1:
The patent segments the centralized MIIS information management into a distributed database architecture where each mobile device and network access point maintains its own local database. This segmentation reduces system complexity by eliminating single-point bottlenecks while maintaining information consistency through peer-to-peer synchronization and standardized data formats defined by capability sets.
Solution Approach 2:
The patent implements universality by creating a standardized MIIS database structure that can serve multiple functions: storing network information, capability descriptions, authentication types, and handover parameters. This universal database format allows different components (mobile devices, access points, MIIS servers) to interact using common protocols, reducing overall system complexity despite the distributed architecture.
Data Source
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AI summary
A mobile device receives wireless network information from a MIIS (Media Independent Information Server), and builds its own database of existing networks with their associated characteristics, appropriately mapped with GPS (Global Positioning Satellite) coordinates or other appropriate form of geographical location identifying information. Consequently, the mobile device becomes "smart" over time through the learning process of first attempting to utilize its own developed database and, only if such database information falls short, making a remote query to a MIIS to get required information for session continuity and performing handovers. The mobile device may store the information received from the MIIS in its own local database together with a time-stamp. Each time the mobile device needs to get updated or new information, it sends a request to the MIIS along with the time-stamp appended to the request. In this way, the mobile device is sent only the information that it does not already have stored in its database