Adaptive Cellular Positioning Method Selection Under Variable Radio Conditions
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Solution Overview
Problem
Positioning accuracy in wireless communication systems is compromised by varying wireless environments between cellular base stations and terminals, particularly due to low communication quality at cell edges or obstructions.
Innovation Solution
A control apparatus and method that selects an appropriate positioning method based on the detection results of wireless signals from cellular base stations, considering the radio wave state between the base station and the terminal, to ensure accurate positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If positioning is performed using a specific cellular base station, then positioning service is provided, but positioning accuracy lowers due to poor wireless environment
Solution Approach 1:
The system dynamically switches between multiple positioning methods (OTDOA, E-CID, DL-TDOA, DL-AoD) based on real-time detection of wireless signal quality. The control apparatus monitors detection results and selects the most appropriate positioning method at each moment, making the positioning system adaptive to changing wireless conditions rather than fixed to a single method.
Solution Approach 2:
The system changes the parameter of positioning method selection based on wireless environment conditions. By detecting radio wave state parameters (signal strength, quality metrics) and using these to determine which positioning method to employ, the system adjusts its operational parameters to maintain accuracy under varying conditions.
2Measurement precision
If multiple positioning methods are used, then positioning accuracy can be maintained under varying conditions, but system complexity increases
Solution Approach 1:
The control apparatus implements a feedback mechanism where detection results from wireless signals are continuously monitored and fed back to the selection unit. Based on this feedback, the system automatically adjusts the positioning method selection, creating a closed-loop control system that manages complexity through automated decision-making rather than manual configuration.
Solution Approach 2:
The positioning system performs self-selection of the appropriate positioning method based on detected wireless conditions. The control apparatus autonomously evaluates detection results and determines the best positioning approach without external intervention, reducing the operational complexity burden on users while maintaining high accuracy.
Data Source
AI summary
A control apparatus for controlling positioning based on communication between one or more cellular base station and a terminal performs: obtaining a detection result of a wireless signal transmitted from the one or more cellular base station, which is detected by the terminal; selecting one of a plurality of positioning methods based on the obtained detection result; and controlling to execute positioning processing using the positioning method, wherein if the detection result is a first detection result, a first positioning method based on a radio wave state between the one or more cellular base station and the terminal is selected, and if the detection result is a second detection result, a second positioning method different from the first positioning method based on the radio wave state between the one or more cellular base station and the terminal is selected.