Base Station Remote Interference Determination via Neighbor Reporting
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Solution Overview
Problem
Wireless communication systems face challenges in accurately determining remote interference, which affects the performance of uplink and downlink transmissions, making it difficult for base stations to differentiate between interference caused by neighboring cells and remote base stations.
Innovation Solution
A method where a victim base station requests and receives uplink interference reports from neighboring base stations, estimating the interference levels and determining whether the interference is due to remote or local sources, allowing for targeted interference management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If base stations use traditional interference detection methods, then they can detect interference, but they cannot accurately determine whether the interference is from neighboring cells or remote base stations
Solution Approach 1:
The interference detection process is segmented into multiple stages: initial interference detection by the victim base station, interference reporting by neighboring base stations, and centralized determination by the network controller. This segmentation allows each component to focus on specific aspects of interference analysis, improving overall identification accuracy while maintaining system efficiency.
Solution Approach 2:
A network controller is introduced as an intermediary entity that receives interference detection results from the victim base station and interference reports from neighboring base stations. The network controller synthesizes this information to determine the interference source, enabling accurate identification without requiring direct complex interactions between all base stations.
2Measurement precision
If base stations implement comprehensive interference reporting from all neighboring cells, then interference source determination improves, but signaling overhead and system complexity increase
Solution Approach 1:
Neighboring base stations are configured to prepare and report interference information in advance when requested, rather than continuously transmitting all possible data. The victim base station triggers interference reporting only when it detects potential interference, reducing unnecessary signaling while ensuring data availability when needed.
Solution Approach 2:
The system implements a feedback mechanism where the victim base station sends interference detection results to the network controller, which then determines whether to request interference reports from neighboring base stations. This feedback loop ensures that interference reporting is performed only when necessary, optimizing the balance between accuracy and complexity.
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for remote interference determination at a first base station based on assistance from one or more neighboring base stations of the first base station. Certain aspects provide a method for wireless communication by a first base station (BS). The method includes receiving from a second BS neighboring the first BS an uplink interference report request. The method further includes transmitting to the second BS an uplink interference report in response to the uplink interference report request, the uplink interference report comprising information indicative of uplink interference caused by one or more user equipments communicating on an uplink with the first BS.