Roaming Parameter Setting for Wireless LAN Terminals
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Solution Overview
Problem
Current wireless LAN technologies lack a standardized approach for setting roaming parameters, leading to inefficient roaming decisions based on uniform thresholds that do not consider terminal performance or service requirements, resulting in unnecessary scanning and roaming.
Innovation Solution
An apparatus and method that dynamically set roaming parameters for wireless LAN terminals based on their model and service-specific characteristics, including roaming thresholds, scanning intervals, and delta values, using a management server to receive and calculate these parameters from terminal information and user databases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If uniform roaming thresholds are applied to all terminals, then network management is simplified, but power consumption increases due to unnecessary scanning and roaming
Solution Approach 1:
The patent applies local quality by customizing roaming parameters according to terminal model characteristics. The server stores and manages roaming parameters specific to each terminal model, and calculates appropriate parameters based on the terminal's performance capabilities. This ensures that high-performance terminals do not perform unnecessary scanning and roaming operations, thereby reducing power consumption while maintaining simplified overall network management through centralized parameter distribution.
2Use of energy by moving object
If roaming parameters are optimized for each terminal model, then power consumption is reduced, but system complexity increases
Solution Approach 1:
The patent introduces a server as an intermediary that manages the complexity of storing and calculating model-specific roaming parameters. The server receives terminal model information, calculates appropriate roaming parameters based on stored models and service types, and distributes them to terminals. This intermediary approach allows complex per-terminal optimization without significantly increasing terminal device complexity, as the calculation and management burden is shifted to the server.
3Object-generated harmful factors
If uniform scanning intervals are used, then network interference is reduced, but roaming performance deteriorates for high-performance terminals
Solution Approach 1:
The patent applies dynamics by making scanning intervals adaptive rather than uniform. The server calculates and distributes dynamic scanning intervals based on terminal model characteristics and service types. High-performance terminals receive shorter scanning intervals that match their capabilities, improving roaming performance, while the overall system maintains controlled interference levels through centralized parameter management. The scanning interval is adjusted according to terminal performance and service requirements.
4Productivity
If roaming parameters are customized per terminal and service, then network efficiency is improved, but parameter management complexity increases
Solution Approach 1:
The patent applies segmentation by organizing roaming parameters according to terminal models and service types. The server stores roaming parameters in a structured manner, segmented by terminal model characteristics and service categories. This segmentation allows efficient retrieval and distribution of appropriate parameters without requiring complex custom calculations for each terminal-service combination. The segmented approach improves network efficiency through optimized parameters while managing complexity through systematic organization.
Data Source
AI summary
Provided are an apparatus for setting a roaming parameter and a method for the apparatus to set a roaming parameter. The apparatus includes a receiver configured to receive terminal information from a terminal connected to a wireless local area network (LAN), a manager configured to store and manage roaming parameters according to terminal models connectable to the wireless LAN (terminal-model-specific roaming parameters), a calculator configured to calculate a roaming parameter of the terminal using the received terminal information and the terminal-model-specific roaming parameters, and a transmitter configured to transmit the calculated roaming parameter to the terminal.