Hierarchical Reference Signal Configuration for Cross-Link Interference Detection
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Solution Overview
Problem
Current wireless communication systems face challenges in effectively detecting and mitigating cross-link interference, particularly in 5G and LTE technologies, which can impact network performance and user equipment (UE) efficiency.
Innovation Solution
The implementation of a hierarchical reference signal (RS) configuration that allows wireless nodes to measure and detect interference by associating different RS resource sets with distinct sets of wireless nodes, enabling efficient interference detection and mitigation through optimized RS resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If hierarchical RS resource set configuration is implemented, then interference detection precision is improved, but device complexity increases
Solution Approach 1:
The patent segments the RS resource set configuration into a hierarchical structure with first-level resource sets for broad interference detection and second-level resource sets for targeted interference mitigation. This segmentation allows the system to achieve high detection precision by dividing the monitoring task into manageable levels, reducing the complexity burden on individual devices while maintaining overall system accuracy.
Solution Approach 2:
The patent introduces a hierarchical dimension to the RS resource configuration, organizing resource sets into multiple levels (first-level and second-level) with different scopes. This dimensional organization enables the system to detect interference at multiple granularities simultaneously, improving measurement precision without requiring each device to handle the entire complexity of universal monitoring.
2Reliability
If comprehensive RS measurement across all resource sets is performed, then interference detection coverage is improved, but UE energy consumption increases
Solution Approach 1:
The patent segments RS measurement tasks into different hierarchical levels, where UEs perform measurements on first-level resource sets for broad coverage and only selectively measure second-level resource sets when interference is detected. This segmentation ensures comprehensive interference detection coverage while significantly reducing UE energy consumption by avoiding unnecessary measurements across all resource sets continuously.
Solution Approach 2:
The patent implements periodic measurement cycles where UEs first measure broad first-level RS resource sets, and only when interference is detected do they proceed to measure more specific second-level resource sets. This periodic, conditional measurement approach maintains reliable interference detection coverage while minimizing UE energy consumption through intelligent measurement scheduling.
3Productivity
If targeted RS resource set measurement is implemented, then network resource efficiency is improved, but interference detection capability is reduced
Solution Approach 1:
The patent segments the interference detection process into two stages: broad detection using first-level RS resource sets and targeted mitigation using second-level RS resource sets. This segmentation allows the network to efficiently allocate resources by focusing detailed measurements only where needed, while maintaining comprehensive interference detection capability through the hierarchical structure.
Solution Approach 2:
The patent adds a hierarchical dimension to RS resource configuration, organizing resource sets into multiple levels with different measurement priorities. This dimensional organization enables the network to achieve high resource efficiency by directing measurement efforts strategically across different hierarchical levels, without compromising overall interference detection capability.
Data Source
AI summary
In some aspects, a wireless node, such as a user equipment (UE), may measure a reference signal (RS) on a first group of RS resource sets, wherein each RS resource set in the first group of RS resource sets is associated with a different set of wireless nodes; may detect interference on a first RS resource set in the first group of RS resource sets, wherein the first RS resource set is associated with a first set of wireless nodes; and may measure RS on a second group of RS resource sets based at least in part on detecting the interference, wherein the second group of RS resource sets is determined based at least in part on the first RS resource set, and wherein each RS resource set of the second group of RS resource sets is associated with a subset of the first set of wireless nodes.