Neighboring Cell Measurement with Distance-Based Frequency Filtering
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Solution Overview
Problem
In mobile communication systems, there is a challenge in accurately performing cell measurements across different network types, such as Non-Terrestrial Networks (NTN) and Terrestrial Networks (TN), which affects the efficiency and accuracy of terminal operations.
Innovation Solution
A method and apparatus for neighboring cell measurement involving a terminal receiving configuration information with reference point information and distance thresholds associated with frequencies, enabling precise cell measurements by considering priority and distance thresholds to optimize cell measurement processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the terminal performs neighboring cell measurements on all frequencies, then the measurement coverage is improved, but the power consumption and measurement overhead increase
Solution Approach 1:
The patent changes the parameter of measurement frequency selection by introducing distance-based filtering. The terminal calculates distance to reference points and only measures frequencies associated with reference points within the distance threshold, transforming the measurement strategy from comprehensive to selective based on spatial parameters.
Solution Approach 2:
The terminal autonomously determines which frequencies to measure by comparing its position with reference point positions and evaluating distances against thresholds. This self-service mechanism eliminates the need for network-directed measurement instructions, reducing signaling overhead and enabling adaptive power management.
2Measurement precision
If the terminal performs neighboring cell measurements without distance filtering, then the measurement completeness is improved, but unnecessary measurements increase resource waste
Solution Approach 1:
The patent introduces distance as a filtering parameter to modify the measurement process. By calculating the distance between the terminal and reference points and comparing it with configured thresholds, the system transforms the measurement approach from unconditional to conditional, eliminating wasted resources on distant cells.
Solution Approach 2:
Instead of performing measurements on all frequencies (excessive action), the patent applies partial action by selectively measuring only those frequencies associated with reference points within the distance threshold. This partial measurement approach maintains measurement completeness for relevant cells while avoiding unnecessary measurements.
3Area of stationary object
If the terminal measures all neighboring cells regardless of position, then the measurement coverage is improved, but the measurement efficiency decreases
Solution Approach 1:
The patent changes the efficiency parameter by introducing spatial filtering based on distance. The terminal calculates distances to reference points and uses these to determine which frequencies warrant measurement, transforming the process from brute-force comprehensive measurement to efficient selective measurement while maintaining coverage of relevant areas.
Solution Approach 2:
The patent applies preliminary action by performing distance calculations and threshold comparisons before executing the actual cell measurements. This preliminary filtering step identifies which frequencies are worth measuring, preventing wasted effort on distant cells and improving overall measurement efficiency.
Data Source
AI summary
A neighboring cell measurement method is performed by a terminal, and includes: receiving configuration information sent by a network device, wherein the configuration information includes at least one piece of reference point information and a distance threshold corresponding to every one of the at least one piece of reference point information, and at least one of every piece of reference point information or the distance threshold corresponding to the every piece of reference point information is associated with at least one frequency; and performing a neighboring cell measurement based on the at least one piece of reference point information and the distance threshold corresponding to the every piece of reference point information.