Wireless Terminal Network Selection Signal Threshold
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Solution Overview
Problem
Existing wireless communication systems lack an efficient method for network selection based on signal level, particularly for stationary IoT terminals that require reliable and stable connections.
Innovation Solution
A method and device for determining an operator-controlled signal threshold per access technology for network selection, which involves collecting terminal measurement information and cell information, and using this data to determine and transmit the appropriate signal threshold to the terminal for selecting a Public Land Mobile Network (PLMN) with a signal above the threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network selection is performed without signal threshold determination, then the terminal can quickly select a network, but the communication reliability and stability deteriorate
Solution Approach 1:
The network side performs preliminary determination of signal thresholds based on terminal measurement information and cell information before the terminal needs to select a network. This pre-computed threshold is then provided to the terminal for efficient network selection, resolving the contradiction between reliability and selection time.
Solution Approach 2:
The network side acts as an intermediary that collects measurement information, determines appropriate signal thresholds, and provides guidance to the terminal. This intermediary role enables the terminal to make reliable network selections without performing complex analysis itself, maintaining both reliability and efficiency.
2Measurement precision
If signal threshold is determined based on detailed measurement information collection, then network selection accuracy improves, but system complexity increases
Solution Approach 1:
The network side serves as an intermediary that handles the complex task of collecting terminal measurement information and cell information, then determining the signal threshold. This shifts the complexity from the terminal to the network, maintaining measurement precision while reducing terminal device complexity.
Solution Approach 2:
The system enables self-service by having the terminal automatically provide its measurement information to the network, which then autonomously determines and provides the signal threshold. This automated process reduces manual configuration complexity while maintaining accurate threshold determination.
Data Source
AI summary
Disclosed herein is a method for operating a node in a wireless communication system, and the method may include determining whether or not a terminal registered to a network is a first type terminal, based on the terminal being the first type terminal, determining to collect terminal measurement information and measured cell information, transmitting an indication to collect the terminal measurement information and the measured cell information to the terminal, receiving the measurement information and the measured cell information which are measured by the terminal, based on the obtained measurement information and the measured cell information, determining whether or not to use a signal threshold and the signal threshold, and transmitting the determined signal threshold to the terminal.