Cell Reselection Triggers for Cell Hopping Continuity
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Solution Overview
Problem
Conventional terrestrial networks face challenges in providing seamless coverage, especially in areas where network devices cannot be deployed, leading to cell hopping and cell power-offs, which complicates cell reselection for terminal devices.
Innovation Solution
A cell reselection method involving the use of reselection configuration information, including trigger information and target information, to manage cell reselection in scenarios with cell hopping, reducing unnecessary measurements and energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal device continuously performs cell reselection measurements to maintain communication in cell hopping scenarios, then communication reliability is improved, but energy consumption increases
Solution Approach 1:
The patent implements periodic cell reselection measurements by configuring the terminal device with measurement windows and measurement gaps. The terminal performs measurements only during designated periodic intervals rather than continuously, reducing energy consumption while maintaining communication reliability through regular monitoring of cell quality changes.
Solution Approach 2:
The patent dynamically adjusts measurement parameters such as measurement frequency, measurement window duration, and threshold values based on cell hopping detection and communication conditions. When cell hopping is detected, the terminal modifies its measurement behavior to balance reliability requirements with energy conservation.
2Measurement precision
If the terminal device performs frequent cell reselection measurements to adapt to cell hopping, then cell reselection accuracy is improved, but measurement overhead increases
Solution Approach 1:
The patent segments the measurement process into distinct phases: cell quality monitoring phase, cell hopping detection phase, and cell reselection execution phase. Each phase has specific measurement objectives and resource requirements, allowing the terminal to optimize measurement overhead by only performing comprehensive measurements when cell hopping is detected rather than continuously.
Solution Approach 2:
The patent implements preliminary cell quality monitoring that continuously tracks serving cell quality metrics. When quality degradation exceeds thresholds or cell hopping patterns are detected, the terminal then performs detailed reselection measurements. This preliminary action reduces overall measurement overhead by triggering comprehensive measurements only when necessary.
Data Source
AI summary
Embodiments of this application provide a cell reselection method and system, and an apparatus. The method includes: receiving reselection configuration information from a network device, where the reselection configuration information includes reselection trigger information, the reselection trigger information is used to trigger measurement for cell reselection, and the reselection trigger information includes reselection trigger time information or reselection trigger indication information; and performing measurement for cell reselection based on the reselection configuration information. In embodiments of this application, the reselection configuration information including the reselection trigger information is introduced.