Cell Signal Quality Determination Based on Beam Count
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Solution Overview
Problem
In wireless communication systems, frequent cell selection or reselection by User Equipment (UE) leads to high power consumption and reduced standby time due to the 'ping-pong effect' caused by reselecting cells with a small number of high-quality beams.
Innovation Solution
A method to determine cell signal quality based on the number of beams exceeding a quality threshold, using a calculation parameter that includes a quality threshold and an offset to calculate a compensation value, which is used to assess and optimize cell selection or reselection, thereby reducing unnecessary reselections and conserving power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cell selection or reselection is performed frequently to ensure communication quality, then communication quality is improved, but power consumption increases and standby time decreases
Solution Approach 1:
The patent changes the parameter used for cell selection from single beam quality to the number of beams exceeding a quality threshold. This parameter change allows the system to evaluate cell quality more comprehensively, avoiding frequent reselections caused by temporary fluctuations in individual beam quality, thereby reducing power consumption while maintaining communication reliability.
Solution Approach 2:
The patent introduces an intermediary metric - the count of beams exceeding a quality threshold - that mediates between raw beam quality measurements and cell selection decisions. This intermediary provides a more stable basis for decision-making, reducing unnecessary reselection operations and associated power consumption.
2Reliability
If cell selection or reselection is performed frequently to maintain signal quality, then signal quality is improved, but standby time decreases
Solution Approach 1:
By changing the evaluation parameter from single beam quality to the number of qualified beams, the system achieves more stable cell selection decisions. This reduces the frequency of cell reselection operations, thereby extending the standby time of the UE while maintaining adequate signal quality through the more robust multi-beam assessment criterion.
3Speed
If cell reselection is performed based on single beam quality, then response speed is improved, but cell stability decreases due to ping-pong effect
Solution Approach 1:
The patent changes the decision parameter from single beam quality to the number of beams exceeding a threshold. This parameter change filters out temporary fluctuations in individual beam quality, providing more stable cell selection decisions while maintaining adequate response speed through efficient counting operations.
Solution Approach 2:
The patent applies beforehand cushioning by using a threshold-based counting mechanism that anticipates and compensates for beam quality fluctuations. By requiring multiple beams to exceed the threshold, the system cushions against temporary deteriorations in individual beams that would otherwise trigger unnecessary reselections and cause ping-pong effects.
Data Source
AI summary
A cell signal quality determination method, a cell selection and reselection method, a communication device and a storage medium are provided. The cell signal quality determination method applied to user equipment, includes: determining the number of beams within a cell of which the beam quality exceeds a quality threshold; determining cell signal quality according to the number of beams.