Network Controlled Repeater Beam Management via Side Control Information
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Solution Overview
Problem
The existing technologies for 5G New Radio (5G NR) systems face challenges in providing efficient beam management and resource indication, especially in high-frequency bands, leading to coverage issues and unwanted interference.
Innovation Solution
The proposed solution involves a network-controlled repeater (NCR) or a reconfigurable intelligent surface (RIS) that receives side control information (SCI) from a base station, allowing for intelligent and controllable amplify-and-forward operations. This includes using SCI to determine beam information, time, frequency, polarization, direction, and power settings for forwarding links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If beam management and resource indication are implemented in existing 5G NR systems, then network performance is improved, but coverage issues and unwanted interference occur in high-frequency bands
Solution Approach 1:
A network-controlled repeater (NCR) is introduced as an intermediary device between the base station and user equipment. The NCR receives signals from the base station, applies beamforming based on received SCI, and forwards the processed signals to extend coverage in high-frequency bands while managing interference through controlled beam directions.
Solution Approach 2:
The patent implements beam-specific resource indication where different beams are assigned different resource allocations, time slots, or frequency resources. This allows precise control of signal quality in specific spatial directions, improving network performance while minimizing interference between adjacent beams through localized resource management.
2Area of stationary object
If multiple beams are used for forwarding in high-frequency bands, then coverage is extended, but beam management complexity increases
Solution Approach 1:
The patent uses side control information (SCI) to dynamically indicate beam parameters including beam identifiers, resource allocations, and timing information. The NCR changes its operational parameters based on received SCI, allowing flexible beam management without complex hardware reconfiguration, thus extending coverage while maintaining manageable complexity through software-controlled parameter adjustment.
Data Source
AI summary
Presented are systems and methods for resource indication. A network node may receive at least one signaling that includes side control information (SCI) from a wireless communication node. The network node may perform communication via at least one link between the network node and a wireless communication device or the wireless communication node, according to the SCI.