Smart Repeater F1 Interface Control for Noise Reduction
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Solution Overview
Problem
Existing RF repeaters amplify all received signals, including noise and interfering signals, which affects the quality of desired signals in radio networks, especially in advanced NR networks that require dynamic control and beam management.
Innovation Solution
The implementation of a smart repeater system that utilizes a F1 interface to obtain control information from a serving node, allowing for controlled amplification of desired signals and reduction of noise and interference, through methods such as adjusting pass-band, amplifier gain, and filtering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a basic RF repeater amplifies all received signals, then the desired signal is amplified, but noise and interfering signals are also amplified
Solution Approach 1:
The patent applies local quality by enabling the smart repeater to apply different processing to different signal components. Through control information received via F1 interface, the repeater can selectively amplify desired signals while applying filtering or reduction to noise and interference components, creating non-uniform signal treatment across different frequency bands or signal types
Solution Approach 2:
The patent implements dynamics by allowing the repeater to dynamically adjust its amplification and filtering characteristics based on real-time control information. The control parameters received via F1 interface enable the repeater to adapt gain levels, filter bandwidths, and processing modes according to current network conditions, changing from static to adaptive signal processing
2Adaptability or versatility
If a smart repeater implements advanced control features, then dynamic TDD and beam management are enabled, but device complexity increases
Solution Approach 1:
The patent applies the intermediary principle by introducing a control information interface (F1 interface) as a mediator between the core network and the repeater. This intermediary structure allows the repeater to implement complex smart features like dynamic TDD and beam management without requiring the repeater itself to contain all control logic, distributing complexity across the network architecture
Solution Approach 2:
The patent implements universality by designing the F1 control interface to provide multiple functions through a single standardized mechanism. The same control information structure supports dynamic TDD, beam management, power control, and other advanced features, allowing one interface design to enable multiple smart repeater capabilities
Data Source
AI summary
Inter-alia, a method is disclosed comprising: obtaining control information indicative of one or more control parameters for controlling a repeating of one or more signals of a cell of a serving node that is served by the first apparatus, wherein the control information is obtained from the serving node via a F1 interface established between a centralized unit, CU, of the serving node and a co-located distributed unit, DU, function on part of the first apparatus of a radio network; and repeating the one or more signals of the cell between a respective UE of one or more UEs served by the cell and the serving node based at least in part of the control information. It is further disclosed an according apparatus, computer program and system.