Microwave Backhaul Nodes with Dynamic Beam Steering
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Solution Overview
Problem
Conventional microwave backhaul networks face challenges due to environmental factors like wind and obstructions, which cause antenna beam misalignment and fluctuation, leading to reduced signal strength and increased power levels, potentially directing radiation towards populated areas, and are vulnerable to node failures due to limited node density.
Innovation Solution
The implementation of dynamically configurable phased array feeders (PAFs) and integrated outdoor and indoor units (ODU/IDU) allows for central management and real-time reconfiguration of microwave backhaul nodes, enabling them to operate on less stable structures, adjust to environmental conditions, and reroute communications, thereby maintaining network demands and reducing power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional backhaul nodes use high power levels to maintain signal strength over vast distances, then communication reliability is improved, but environmental factors cause beam redirection that may direct radiation towards populated areas
Solution Approach 1:
The patent implements dynamically adjustable beam forming capabilities that allow the backhaul nodes to adapt their radiation patterns in real-time. The system can dynamically steer and shape beams to maintain communication reliability while avoiding populated areas, replacing the static high-power fixed beam approach with a flexible, controllable system that responds to environmental conditions and geographic constraints.
Solution Approach 2:
The patent changes multiple parameters including power levels, beam width, and beam direction to optimize both reliability and safety. By adjusting these parameters dynamically based on signal quality requirements and environmental conditions, the system maintains adequate signal strength over vast distances while controlling radiation exposure to acceptable levels in populated areas.
2Object-affected harmful factors
If conventional backhaul nodes are mounted at vast distances apart to provide clear line-of-sight, then signal obstruction is reduced, but aiming precision requirements increase due to narrow beam angles
Solution Approach 1:
The patent replaces the purely mechanical manual aiming process with an automated electronic beam steering system. The system uses electronic control to adjust beam direction and orientation, eliminating the need for precise mechanical alignment during installation. This substitution of mechanical adjustment with electronic control significantly reduces the precision requirements for physical mounting while maintaining accurate beam targeting.
Solution Approach 2:
The patent implements feedback mechanisms that continuously monitor signal quality and automatically adjust beam orientation and focus. This closed-loop control system compensates for minor misalignments and environmental changes, reducing the initial precision requirements for mounting while maintaining optimal communication performance over vast distances.
3Loss of energy
If conventional backhaul nodes are spaced far apart to cover large areas, then node density is reduced, but network vulnerability to single node failures increases
Solution Approach 1:
The patent enhances the functionality of each backhaul node to perform multiple roles including primary communication, relay functions, and backup capabilities. Nodes are designed with universal interfaces and protocols that enable them to assume different network roles dynamically, allowing sparse node deployments to achieve both energy efficiency and high reliability through intelligent resource utilization.
Solution Approach 2:
The patent implements redundancy mechanisms and failure prediction capabilities that prepare the network for potential node failures before they occur. The system monitors node health and can pre-position backup capacity or reconfigure network paths in anticipation of failures, reducing the vulnerability inherent in low-density deployments without requiring excessive spare nodes.
4Ease of manufacture
If mechanical aiming adjustment is used to align antenna elements, then installation simplicity is maintained, but ability to compensate for environmental movement is lost
Solution Approach 1:
The patent replaces mechanical adjustment mechanisms with electronic beam steering and adaptive forming capabilities. The system maintains installation simplicity by using fixed or minimally adjustable physical structures while achieving environmental adaptation through electronic control of the electromagnetic beams. This substitution allows the system to be both easy to install and highly responsive to environmental conditions.
Solution Approach 2:
The patent introduces dynamic electronic adjustment capabilities that allow the system to adapt to environmental movements in real-time. The beam forming and steering electronics can continuously adjust beam direction and characteristics to compensate for wind-induced movements, temperature changes, and other environmental factors, maintaining communication quality without requiring complex mechanical adjustment mechanisms.
Data Source
AI summary
A communications network is disclosed that includes one or more microwave backhaul nodes for routing communications between one or more near end mobile communications devices and one or more far end mobile communications devices. The communications network includes a central monitoring and control infrastructure, a remote monitoring and control infrastructure and/or a local monitoring and control infrastructure. The central monitoring and control infrastructure, the remote monitoring and control infrastructure and/or the local monitoring and control infrastructure can directly manage the one or more microwave backhaul nodes. Alternatively, the remote monitoring and control infrastructure and/or the local monitoring and control infrastructure can indirectly manage the one or more microwave backhaul nodes through the central monitoring and control infrastructure.