Terminal Cell Selection by Target-Signal Counting for Low-Complexity Devices
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Solution Overview
Problem
Existing cell selection technologies for terminal devices require complex measurements and calculations, making them unsuitable for devices with low-complexity designs and limited capabilities, leading to high measurement overheads and inefficiencies.
Innovation Solution
A simplified cell selection method where a terminal device determines whether a target cell is suitable for camping based on the quantity of successfully obtained target signals exceeding a threshold, reducing the need for complex measurements and calculations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complex measurement and calculation operations are performed to determine cell selection criteria, then measurement precision and reliability are improved, but device complexity and measurement overheads increase
Solution Approach 1:
The patent extracts the essential criterion for cell selection from the complex measurement process. Instead of requiring terminal devices to perform comprehensive signal quality measurements and calculations, the invention extracts a simplified binary judgment mechanism: successfully obtaining target signals indicates suitable cells, while failure indicates unsuitable cells. This extraction eliminates complex processing requirements while maintaining selection accuracy.
Solution Approach 2:
The patent employs a disposable judgment approach where the terminal device simply counts whether target signals can be successfully obtained, rather than investing in complex measurement capabilities. This 'cheap' approach uses basic signal detection and counting functionality to achieve the same selection purpose that previously required expensive complex processing, making the solution suitable for low-complexity devices.
2Measurement precision
If precise parameter calculation is performed for cell selection, then measurement precision is improved, but measurement overheads and processing time increase
Solution Approach 1:
The patent applies the skipping principle by rushing through the measurement and calculation process. Instead of performing comprehensive signal quality analysis, the invention skips directly to a binary judgment: can the terminal device successfully obtain target signals? This skipping mechanism eliminates time-consuming calculations while maintaining sufficient accuracy for cell selection, significantly reducing measurement overheads.
3Reliability
If comprehensive signal quality measurement is performed, then cell selection reliability is improved, but ease of operation decreases for low-complexity devices
Solution Approach 1:
The patent implements self-service by enabling terminal devices to autonomously determine cell suitability through simple signal obtaining operations. The device automatically counts successfully obtained target signals and compares against thresholds without requiring external intervention or complex processing. This self-service mechanism maintains reliable cell selection while keeping the operation simple and accessible for low-complexity devices.
Data Source
AI summary
This application provides a cell selection method and a terminal device, and relates to the communication field. In a cell selection process, a requirement on a capability of the terminal device is lowered. The method includes: The terminal device obtains a target signal of a target cell; and when the terminal device continuously successfully obtains a target signals, the terminal device determines the target cell as a cell on which camping is allowed, where a is a positive integer greater than a threshold b, and the cell on which camping is allowed is a cell that meets a cell selection criterion requirement of the terminal device; or when a quantity of target signals continuously successfully obtained by the terminal device is less than or equal to a threshold b, the terminal device determines the target cell as a cell on which camping is not allowed.