Aggressor Victim Relation for Wireless Interference Mitigation
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Solution Overview
Problem
Conventional techniques for managing remote interference in wireless communications systems are inadequate, as they do not effectively utilize previously detected aggressor-victim relationships to mitigate interference, leading to inefficient interference mitigation and increased latency in detecting and addressing remote interference.
Innovation Solution
The described techniques utilize previously detected victim-aggressor relationships to trigger reference signal monitoring and transmission, allowing aggressor base stations to identify and mitigate remote interference by allocating unique reference signal sequences and optimizing monitoring periodicity, thereby reducing cross-interference and latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional interference management techniques are used, then system complexity is reduced, but interference mitigation effectiveness deteriorates and detection latency increases
Solution Approach 1:
The system pre-detects and stores victim-aggressor relationships between base stations before interference occurs. When interference is detected, the system retrieves pre-stored relationship information to quickly identify the aggressor base station, eliminating the need for complex real-time analysis and reducing detection latency.
Solution Approach 2:
A reference signal mechanism is introduced as an intermediary to facilitate interference detection and mitigation. The victim base station transmits reference signals that aggressor base stations monitor, enabling the identification of interference relationships without requiring complex direct measurement systems at each base station.
2Measurement precision
If aggressive monitoring of all potential victim base stations is performed, then interference detection accuracy is improved, but overhead and resource consumption increase
Solution Approach 1:
The system pre-identifies and stores potential victim-aggressor base station pairs based on historical interference data and geographic relationships. This preliminary action allows aggressor base stations to monitor only a selective subset of relevant victim base stations rather than all potential targets, reducing monitoring overhead while maintaining detection accuracy for actual interference sources.
Solution Approach 2:
The monitoring strategy is localized to specific victim-aggressor pairs identified through pre-detection. Each aggressor base station tailors its monitoring efforts to the specific victim base stations that have historically experienced interference from it, rather than applying a uniform monitoring approach to all base stations. This localized approach reduces overall system overhead while maintaining precise interference detection where needed.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for managing remote interference using a previously detected relationship between an aggressor base station and a victim base station. The described techniques provide for allocating reference signal sequences for various victim base stations to send to an aggressor base station. The victim base station may trigger the aggressor base station to perform reference signal monitoring based on the previously detected victim-aggressor relationship, and may transmit a reference signal carrying a unique identifier based on the triggering. The first base station may send a request that the second base station to transmit a reference signal for enabling the first base station to measure interference of a wireless channel, and performing interference mitigation techniques at the first base station, the second base station, or both, to mitigate the remote interference.