RIS Handover Barring for Contention-Free UE Communication
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing user equipment (UE) communication with reconfigurable intelligent surfaces (RIS) to prevent overloading and optimize resource allocation, particularly in environments where beamforming communications are impaired by interference or blockage.
Innovation Solution
Implementing a barring mechanism where a base station transmits a barring indication to UE, preventing it from communicating with specific RISs, and configuring UEs to refrain from communicating with those RISs based on this indication, thereby optimizing resource allocation and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UEs are allowed to communicate with multiple RISs without restriction, then communication coverage and reliability are improved, but RIS overloading occurs and resource allocation efficiency deteriorates
Solution Approach 1:
The base station performs preliminary actions by determining barring indications for RISs before UEs attempt to connect, and transmits these indications to UEs in advance. This prevents UEs from attempting to connect to already overloaded RISs, thereby avoiding RIS overloading and improving resource allocation efficiency while maintaining communication reliability through proactive resource management.
2Productivity
If active components are used in RIS for signal amplification, then communication throughput is improved, but power consumption increases significantly
Solution Approach 1:
The patent substitutes active amplification mechanisms with passive reflection mechanisms. Instead of using power-consuming active components to amplify signals, the RIS uses passive reflective elements that redirect signals without requiring energy for amplification. This maintains communication functionality while dramatically reducing power consumption, aligning with the green communication objectives.
3Reliability
If UEs continuously monitor and switch between RISs for optimal connection, then communication quality is improved, but system complexity and signaling overhead increase
Solution Approach 1:
The base station performs self-service by centrally determining and managing RIS barring indications based on overall system conditions and UE requirements. Instead of UEs independently monitoring and switching between RISs (which would increase complexity), the base station proactively manages RIS-UE associations by transmitting barring indications that guide UEs on which RISs to avoid, thereby reducing system complexity while maintaining communication quality through centralized intelligent control.
Data Source
AI summary
A method, apparatus, and system for barring at least one UE from communicating with one or more RISs is disclosed. A base station may determine to bar at least one UE from communicating with one or more RISs of a plurality of RISs. The base station may transmit, to the at least one UE, a barring indication for the one or more RISs. The barring indication may identify the one or more RISs with which the at least one UE is barred from communicating. The UE may determine to refrain from communicating with the one or more RISs based on the barring indication. The UE may communicate with the base station based on the determination to refrain from communicating with the one or more RISs.