Neighbor Cell Measurement Control With Dynamic Threshold Updates
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Solution Overview
Problem
Terminal devices stay in the current serving cell for a long time due to a significant difference between relaxed measurement thresholds and cell reselection thresholds, which is not conducive to network planning and inter-base station load balancing.
Innovation Solution
Dynamically adjust relaxed measurement information by updating thresholds to reduce the difference between relaxed measurement and cell reselection thresholds, based on serving cell measurement results and predetermined conditions, allowing the terminal device to perform neighbor cell measurements more effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If relaxed measurement threshold is set lower than cell reselection threshold to enable relaxed measurement function, then terminal device can reduce power consumption by staying in current serving cell, but terminal device remains in current serving cell too long which is not conducive to network planning
Solution Approach 1:
The patent applies dynamics by making the relaxed measurement threshold variable rather than fixed. The threshold is dynamically adjusted based on the duration the terminal has been in the current serving cell. When the duration exceeds a first threshold, the relaxed measurement threshold is increased to a second threshold (higher than the cell reselection threshold), which triggers neighbor cell measurement and potential cell reselection. This dynamic adjustment resolves the contradiction by allowing low power consumption initially, then forcing time limit adherence after a certain duration.
Solution Approach 2:
The patent implements feedback by monitoring the duration the terminal remains in the current serving cell and using this information to adjust the relaxed measurement threshold. The network device or terminal device measures the duration, compares it against the first threshold, and feedback-adjusts the threshold accordingly. This closed-loop feedback mechanism ensures that while power saving is initially enabled, the terminal cannot remain in the serving cell indefinitely, thus balancing power consumption with network planning needs.
2Use of energy by moving object
If relaxed measurement threshold is significantly lower than cell reselection threshold, then terminal device can perform relaxed measurement to save power, but significant threshold difference causes terminal to stay in current cell too long
Solution Approach 1:
The patent resolves the adaptability issue by making the threshold dynamic rather than static. Initially, when the terminal has been in the current cell for a short duration, the relaxed measurement threshold is low (second threshold), creating a significant difference with the cell reselection threshold to enable power saving. However, when the duration exceeds the first threshold, the threshold is dynamically increased to match or approach the cell reselection threshold, reducing the gap and enabling network planning flexibility. This dynamic behavior allows the system to adapt to different operational phases.
Solution Approach 2:
The patent applies parameter changes by modifying the relaxed measurement threshold parameter based on the duration in the current cell. The threshold transitions from a lower value (second threshold) when duration is short to a higher value (first threshold or cell reselection threshold) when duration exceeds the first threshold. This parameter change strategy allows the system to optimize both power consumption and network planning flexibility at different operational stages, resolving the contradiction between these two requirements.
Data Source
AI summary
An embodiment of present application provides a neighbor cell measurement controlling method, apparatus, and storage medium, where this method comprises that: a terminal device determines whether to update relaxed measurement information, where the updating the relaxed measurement information is used to reduce a difference between a threshold corresponding to the relaxed measurement information and a threshold corresponding to cell reselection information, and then, determines whether to perform a neighbor cell measurement according to a serving cell measurement result and at least one of the determination result and a cell reselection information. The present application can avoid the terminal device staying in the current serving cell for a long time due to a relative large threshold difference or not in accordance with the actual situation, thus facilitating the network planning.