Intelligent Backhaul Radio Dynamic Beamforming for Interference Avoidance
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Solution Overview
Problem
Conventional microwave backhaul radios are unsuitable for obstructed line of sight conditions and lack mechanisms to avoid interference, making them impractical for urban deployments and inefficient in spectrum resource utilization, especially in licensed bands.
Innovation Solution
The development of intelligent backhaul radios and systems that use multiple directive gain antenna elements, adjustable antenna patterns, and advanced management systems to scan for interference and adjust operational parameters, allowing co-channel operation with existing systems while minimizing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional microwave backhaul radios are used in obstructed line of sight conditions, then deployment is simplified, but interference avoidance capability is lost and spectrum utilization becomes inefficient
Solution Approach 1:
The patent implements dynamic beamforming capabilities that allow the backhaul radio to adapt its radiation pattern in real-time. The system uses multiple antenna elements that can be independently controlled to steer beams and adjust patterns dynamically, enabling the radio to avoid interference while maintaining connectivity in obstructed line-of-sight conditions.
Solution Approach 2:
The system changes operational parameters including beam direction, radiation pattern shape, and frequency selection based on detected interference conditions. By adjusting these parameters dynamically, the backhaul radio can coexist with existing systems while maintaining high data rates and avoiding harmful interference.
2Productivity
If fixed wireless access links are deployed without alignment signals, then installation is faster, but alignment precision deteriorates
Solution Approach 1:
The patent incorporates alignment signals that are transmitted before the actual data communication begins. These preliminary alignment signals enable the receiving end to establish precise directional alignment and beamforming parameters before full-speed operation starts, ensuring accurate positioning without slowing down the overall deployment process.
3Productivity
If multiple directive gain antenna elements are used to improve data transmission efficiency, then spectrum utilization improves, but device complexity increases
Solution Approach 1:
The patent divides the antenna system into multiple independent directive gain antenna elements that can be individually controlled. Each element can be independently adjusted for beamforming, allowing the system to achieve high data transmission efficiency and spectrum utilization while managing complexity through modular segmentation of the antenna array.
Data Source
AI summary
An intelligent backhaul system is disclosed for deployment in the presence of existing radio systems. A backhaul system for co-channel deployment with existing licensed and unlicensed wireless networks, including conventional cellular backhaul radios, Common Carrier Fixed Point-to-Point Microwave Service, Private Operational Fixed Point-to-Point Microwave Service and other FCC 47 C.F.R. § 101 licensed microwave networks is disclosed. Processing and network elements to manage and control the deployment and management of backhaul of radios that connect remote edge access networks to core networks in a geographic zone which co-exist with such existing systems or other sources of interference within a radio environment are also disclosed.