Reconfigurable Intelligent Surface Management for Signal Interference
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Solution Overview
Problem
Wireless communications systems face challenges in managing signal interference caused by reconfigurable intelligent surfaces (RIS), which can degrade signal quality for user equipment (UE).
Innovation Solution
The system enables operational aspects of RIS to be controlled by determining if the RIS is causing signal interference and modifying its operation to mitigate interference. This involves communication between base stations to allocate RIS control, allowing base stations to access RIS for enhancing signal quality for their UEs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RIS operation is activated to enhance signal coverage, then signal quality for UEs is improved, but signal interference is caused to other UEs
Solution Approach 1:
The RIS configuration is made dynamic by allowing different base stations to control and reconfigure the RIS based on real-time communication needs. The RIS can be dynamically allocated to different base stations through coordination messages, enabling the system to adaptively switch between enhancing signal quality and reducing interference by changing which base station controls the RIS configuration.
Solution Approach 2:
A coordination mechanism between base stations is introduced as an intermediary to manage RIS control. When interference is detected, the affected base station can request control of the RIS from the controlling base station through coordination messages. This intermediary coordination process enables conflict resolution between signal enhancement needs and interference reduction needs.
2Adaptability or versatility
If multiple base stations need to access the same RIS, then RIS utilization is improved, but control coordination complexity increases
Solution Approach 1:
RIS control is segmented into discrete, manageable units that can be individually allocated to different base stations. The system divides RIS access into time-based or scenario-based control segments, where each base station receives control rights for specific time periods or specific interference scenarios, simplifying the coordination complexity while maintaining high utilization.
Solution Approach 2:
The system implements periodic coordination mechanisms where base stations exchange control status and interference information at regular intervals. This periodic action allows for systematic allocation of RIS control rights, enabling multiple base stations to access the RIS in an organized manner without creating unmanageable coordination complexity.
Data Source
AI summary
The present disclosure relates to methods, apparatuses, and systems that support reconfigurable intelligent surface (RIS) management in wireless systems. For instance, aspects of the disclosure enable operational aspects of an RIS to be controlled to reduce signal interference caused by operation of the RIS. Aspects of the disclosure also enable RIS control to be allocated between different base stations, such as to enable base stations to access an RIS for providing signal communication for UEs served by the base stations.