Unified Multi-Mode System Selection for Wireless Terminals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional system selection in multi-mode wireless communication environments is inefficient due to the use of priority lists specific to different radio technologies, leading to difficulties in selecting the best system among those utilizing various access technologies.
Innovation Solution
A method and apparatus that identify locations and filter system listing information based on priority data to create a unified multi-mode list of preferred systems, integrating information from different radio technologies and enhancing system selection by applying system priority information to the filtered data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If priority lists specific to different radio technologies are used for system selection, then each technology can be selected according to its own criteria, but the complexity of managing multiple separate priority lists increases and system selection becomes less efficient
Solution Approach 1:
The patent combines multiple technology-specific priority lists into a single unified priority list that works across all radio technologies. Instead of maintaining separate priority lists for different access technologies, the invention creates one consolidated list that the terminal can use universally, thereby reducing management complexity while preserving adaptability to different technologies.
Solution Approach 2:
The unified priority list serves as a universal mechanism that functions across multiple radio technologies and access types. This single structure replaces multiple technology-specific lists, allowing the terminal to operate with one set of priority rules regardless of which radio technology is being used, thus simplifying the system while maintaining versatility.
2Adaptability or versatility
If multiple separate priority lists for different radio technologies are maintained, then each technology's specific requirements can be met, but the difficulty and inefficiency in selecting a system from multiple access technologies increases
Solution Approach 1:
The patent merges multiple technology-specific priority lists into a single unified list that the terminal can use across all radio technologies. This consolidation eliminates the need for the terminal to switch between different list formats and information structures, making system selection easier and more efficient while still supporting multiple access technologies.
Solution Approach 2:
Instead of having the terminal adapt to multiple different priority list formats for different technologies, the invention inverts the approach by creating a single priority list format that adapts to work with all technologies. This reversal simplifies the terminal's operation while maintaining multi-technology compatibility.
3Reliability
If conventional priority lists are used, then system selection can be performed according to established criteria, but the granularity and precision of system selection is insufficient for complex roaming agreements
Solution Approach 1:
The patent introduces new parameters and attributes into the unified priority list structure, such as technology-specific tags, location information, and roaming agreement identifiers. These additional parameters enable more granular and precise system selection by allowing the terminal to differentiate between systems based on multiple criteria simultaneously, thereby improving selection accuracy for complex roaming scenarios.
Data Source
AI summary
Systems and methodologies are described that facilitate improved multi-mode system selection in a wireless communication system. As described herein, various techniques can be utilized to synthesize system databases corresponding to disparate groups of radio access technologies (RATs), such as a Public Land Mobile Network (PLMN) list and/or a Preferred Roaming List (PRL), with one or more overlay databases and associated location information to generate a multi-mode list of preferred systems. As described herein, a preferred system listing can be constructed to leverage fine granularity of information in one or more databases while still supporting databases with coarser information. Techniques are additionally described herein for augmenting and/or grouping one or more overlay databases to facilitate a higher available granularity of information for various RATs than that provided in system databases corresponding to the RATs. Techniques are additionally provided for automated generation of preferred system listing based on changes to observed location.