Remote interference management design
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Solution Overview
Problem
Existing remote interference management frameworks in wireless communication systems, particularly in NR and LTE, face challenges in multi-aggressor scenarios with symmetrical interference, leading to suboptimal resource utilization due to the use of a single victim reference signal for multiple aggressor base stations.
Innovation Solution
Configuring a victim base station to transmit distinguishable or different victim reference signals to different aggressor base stations to mitigate interference, using a coverage extension mechanism to manage interference effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single victim reference signal is used for multiple aggressor base stations, then device complexity is reduced, but resource utilization becomes suboptimal
Solution Approach 1:
The patent segments the single victim reference signal into multiple distinguishable victim reference signals, each specifically configured for a particular aggressor base station. This segmentation allows each reference signal to be independently optimized for its target aggressor, thereby improving resource utilization efficiency while maintaining manageable complexity through structured configuration.
Solution Approach 2:
The patent applies local quality by making each victim reference signal have distinct properties (different sequences, frequencies, or time resources) tailored to specific aggressor base stations. This localized differentiation enables precise interference management for each aggressor-victim pair, optimizing resource utilization without requiring complete reconfiguration of the entire system.
2Productivity
If distinguishable victim reference signals are transmitted to different aggressor base stations, then resource utilization is optimized, but device complexity increases
Solution Approach 1:
The patent implements universality by designing a multi-functional reference signal framework where distinguishable victim reference signals serve multiple purposes: interference identification, aggressor base station localization, and resource coordination. This multi-functionality justifies the increased complexity by delivering comprehensive interference management benefits across multiple operational dimensions.
Solution Approach 2:
The patent introduces dynamics by enabling flexible configuration and adaptation of distinguishable victim reference signals based on real-time interference conditions. The system can dynamically activate or deactivate specific reference signals for different aggressors, adjust their parameters, and optimize resource allocation adaptively, thereby managing complexity through intelligent control rather than static rigid structures.
3Reliability
If coverage extension mechanism is used to manage interference, then interference mitigation effectiveness is improved, but system complexity increases
Solution Approach 1:
The patent applies preliminary action by proactively extending coverage of victim reference signals before interference problems fully manifest. The coverage extension mechanism pre-positiones reference signal resources and establishes interference management capabilities in advance, allowing the system to prevent and mitigate interference more effectively rather than reacting after interference occurs, thereby justifying the added system complexity through preventive benefits.
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for performing remote interference management. In certain embodiments, a method includes detecting interference from one or more aggressor BSs. The method further includes transmitting distinguishable victim reference signals (RSs). The method further includes. The method further includes monitoring for distinguishable aggressor RSs from the aggressor BSs. The method further includes determining to stop transmitting one or more of the distinguishable victim RSs based on the monitoring.