Intelligent Distributed Relay Signal Processing
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Solution Overview
Problem
Current mmWave 5G NR network deployments face significant coverage issues due to signal attenuation by obstacles, with existing amplify-and-forward relay solutions amplifying noise and interference, and decode-and-forward solutions introducing latency and complexity.
Innovation Solution
The Intelligent Distributed Relay (IDR) system combines amplify-and-forward and decode-and-forward techniques using Digital Signal Processing (DSP) control circuitry to amplify and forward signals with minimal delay, while decoding control information for optimized performance, including synchronization, power control, beamforming, and sub-channelization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If amplify-and-forward relay solutions are used to extend coverage, then network coverage is improved, but noise and interference are amplified
Solution Approach 1:
The patent extracts the harmful noise and interference components from the relayed signal through digital signal processing. The relay device decodes the signal, identifies and removes noise/interference components, and re-encodes the clean signal, thereby separating the useful signal from harmful elements before retransmission.
Solution Approach 2:
The patent introduces digital signal processing as an intermediary layer between the received signal and the retransmitted signal. This intermediary processing stage cleans the signal by removing noise and interference, acting as a mediator that transforms the degraded signal into a improved one before forwarding.
2Reliability
If decode-and-forward relay solutions are used to reduce noise, then signal quality is improved, but latency and system complexity increase
Solution Approach 1:
The patent applies partial decode-and-forward processing rather than complete decoding. The relay device performs limited digital processing to remove noise and interference while maintaining the overall amplify-and-forward architecture, achieving signal quality improvement without the full latency penalty of complete decode-and-forward operation.
3Reliability
If decode-and-forward relay solutions are used to improve signal quality, then noise is reduced, but device complexity increases
Solution Approach 1:
The patent implements partial digital signal processing capabilities in the relay device, enabling noise reduction functions while avoiding the full complexity of complete decode-and-forward operation. The relay performs essential cleaning functions with minimal additional complexity compared to traditional amplify-and-forward systems.
Data Source
AI summary
Techniques are disclosed for implementing am Intelligent Distributed Relay (IDR). The IDR may advantageously use the best qualities of both amplify-and-forward and decode-and-forward solutions. The advantageously leverages the use of a digital signal processing (DSP) circuitry, which may decode the data and control information. The control information may be used to control IDR behavior (e.g., in the uplink and/or downlink directions) and to enhance its characteristics.