Dynamic Cross-Link Interference Measurement for Changing Beams
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Solution Overview
Problem
Conventional CLI measurement and reporting mechanisms fail to account for dynamic changes in operating beams, leading to ineffective interference management in wireless communications systems.
Innovation Solution
A dynamic cross-link interference measurement and reporting system that configures a UE with spatial information for CLI resources and dynamically indicates active spatial filters for interference measurement and reporting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional CLI measurement mechanisms are used, then measurement setup is simple, but the system cannot adapt to dynamic beam changes
Solution Approach 1:
The patent implements dynamic CLI measurement by enabling the network to activate/deactivate specific spatial filters (beams) for interference measurement based on current transmission conditions. The UE dynamically switches between different spatial filters corresponding to different beams, allowing the measurement system to adapt to changing network topology and beam configurations without requiring complete reconfiguration.
Solution Approach 2:
The patent segments the spatial information into multiple discrete spatial filters that can be independently controlled. Each spatial filter corresponds to a specific beam direction, and the network can selectively activate only the relevant spatial filters for current CLI measurement needs, rather than requiring all possible spatial filters to be active simultaneously.
2Measurement precision
If multiple spatial information are configured for CLI resources, then measurement precision is improved, but the complexity of managing spatial filters increases
Solution Approach 1:
The patent implements feedback mechanisms where the UE reports measurement results for each activated spatial filter, and the network uses this feedback to determine which spatial filters should be activated for subsequent measurements. This closed-loop approach allows the system to automatically learn which beams provide the most useful interference information, reducing manual configuration complexity while maintaining high measurement precision.
Solution Approach 2:
The patent allows the network to activate only a subset of available spatial filters for CLI measurement rather than requiring all spatial filters to be active. This partial action approach enables the system to achieve sufficient measurement precision using only the necessary spatial filters, thereby reducing management complexity while maintaining effectiveness.
Data Source
AI summary
Various aspects of the present disclosure relate to a user equipment (UE) that is configured, e.g., from a base station, with a set of spatial information for one or more cross-link interference (CLI) resources. The UE receives, e.g., from a base station, dynamic indication of spatial information, selected from the set of configured spatial information. The UE performs measurement using the indicated spatial information on the corresponding CLI resource and reports. e.g., to a base station, the measurement. The spatial information can be dynamically indicated in various manners, such as using media access control (MAC) control element (CE) signaling, downlink control information (DCI) signaling, and so forth.