PLMN Reselection Using Dedicated Signal Quality Thresholds
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing coverage and capacity, particularly in high-frequency bands, and require improved methods for cell selection and signal quality assessment to enhance connectivity and performance.
Innovation Solution
The terminal performs cell selection based on received dedicated signaling, utilizing advanced algorithms and protocols to optimize signal quality and coverage in various wireless communication systems, including 3GPP LTE and 5G NR.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If traditional cell selection methods are used in high-frequency bands, then system complexity is reduced, but coverage and capacity are insufficient
Solution Approach 1:
The network pre-configures dedicated signaling with cell selection parameters and thresholds before the terminal performs cell selection. This preliminary provision of information enables the terminal to make informed cell selection decisions without complex real-time calculations, thereby extending coverage in high-frequency bands while maintaining manageable system complexity
Solution Approach 2:
Dedicated signaling acts as an intermediary between the network and terminal for cell selection. The network uses dedicated signaling to convey cell selection parameters, thresholds, and guidance information to the terminal, enabling improved coverage and capacity management in high-frequency bands without directly complicating the terminal's cell selection algorithm
2Reliability
If dedicated signaling is used for cell selection, then signal quality and coverage are improved, but signaling overhead increases
Solution Approach 1:
Dedicated signaling for cell selection is applied selectively to specific terminals or specific cell selection scenarios rather than universally to all terminals in all situations. This localized application of dedicated signaling improves connectivity reliability for terminals that need it while minimizing the overall signaling overhead across the network
Solution Approach 2:
The system dynamically adjusts cell selection parameters and thresholds conveyed through dedicated signaling based on network conditions, terminal capabilities, and service requirements. By optimizing these parameters, the system achieves improved connectivity reliability while reducing unnecessary signaling overhead through parameter efficiency
Data Source
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AI summary
One disclosure of the present specification provides a method by which a target V-SMF performs communication. The method comprises the steps of: performing public land mobile network (PLMN) selection by using a specific PLMN; receiving, from a base station, a broadcast message including a first threshold; receiving, from the base station, a dedicated message including a second threshold, wherein the priority of the second threshold is higher than the priority of the first threshold; measuring signal quality of the specific PLMN; determining whether the measured signal quality is less than the second threshold; and performing new PLMN selection on the basis of the measured signal quality being less than the second threshold.