Beam-Level Mobility Management Without Layer 3 Filtering
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Solution Overview
Problem
Existing communication systems rely on Layer 3 filtering of cell measurement results for handover decisions, which can lead to delays and reduced timeliness in mobility management processes.
Innovation Solution
A mobility management method that involves receiving beam-specific configuration information, determining beams to be measured based on identifiers, and triggering measurement reporting or handover based on beam measurement results and thresholds, bypassing Layer 3 filtering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If Layer 3 filtering is applied to cell measurement results for handover decisions, then measurement accuracy is improved, but handover timeliness deteriorates
Solution Approach 1:
The patent segments the measurement process into two distinct paths: beam-level measurement (physical layer) and cell-level measurement (Layer 3). By separating these functions, the system can perform rapid beam measurements without subjecting them to Layer 3 filtering delays, while maintaining accurate cell-level measurements where filtering is still applied. This segmentation resolves the contradiction by allowing beam measurements to bypass the time-consuming Layer 3 filtering process.
Solution Approach 2:
The patent extracts the beam measurement function from the traditional Layer 3 filtering process. Instead of subjecting all measurements to Layer 3 filtering, the system directly obtains beam measurement results from the physical layer and uses them for handover decisions. This extraction eliminates the unnecessary filtering step for beam-level measurements, improving timeliness while maintaining accuracy through direct physical layer measurements.
2Adaptability or versatility
If cell measurement results are used for handover decisions, then system compatibility is maintained, but measurement timeliness deteriorates
Solution Approach 1:
The patent introduces a new dimension to the measurement system by adding beam-level measurements (physical layer) alongside traditional cell-level measurements (Layer 3). This dimensional expansion allows the system to operate at two different levels: using rapid beam measurements for timely handover decisions while maintaining compatibility with existing cell-based measurement frameworks. The dual-dimensional approach resolves the contradiction by providing faster measurement options without abandoning established cell measurement compatibility.
3Loss of time
If beam measurement is implemented without Layer 3 filtering, then measurement timeliness is improved, but measurement complexity increases
Solution Approach 1:
The patent extracts the beam measurement function from the complex Layer 3 filtering process, placing it directly at the physical layer. This extraction simplifies the measurement path for beam-level operations by eliminating the need for Layer 3 filtering, thereby improving timeliness. The complexity is managed by maintaining separate measurement paths: simple direct beam measurements for timeliness-critical operations and traditional Layer 3 filtered cell measurements for comprehensive analysis.
Data Source
AI summary
A mobility management method performed by a terminal device includes: receiving first configuration information, the first configuration information comprising a beam identifier; determining, according to the beam identifier, a beam to be measured; measuring said beam to obtain a beam measurement result; and triggering measurement reporting or handover according to the beam measurement result and a result threshold value.