Dual-Polarized Wireless Backhaul for Interference Mitigation

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Solution Overview

Problem

Conventional wireless communication systems face challenges in providing reliable coverage in dense urban environments due to RF interference, blockages, and complexity, especially with the proliferation of Wi-Fi networks, leading to network congestion and increased latency.

Innovation Solution

A wireless communication system utilizing hybrid analog-digital repeater devices that form dual analog data links on different polarizations, combined with a central cloud server for intelligent network management, to detect and mitigate interference and blockages, ensuring robust and resilient communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If conventional Wi-Fi networks are used to extend wireless coverage, then coverage range is extended, but network congestion and interference increase

Engineering Contradiction:

Improvewireless coverage areaVSAvoidRF interference and network congestion

Core Design Contradiction:

Area of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The patent transitions from conventional 2D planar Wi-Fi signal propagation to 3D volumetric coverage using dual-polarized antenna arrays. By utilizing both horizontal and vertical polarization dimensions, the system creates spatially diverse communication paths that extend coverage while reducing interference through dimensional separation of signal paths.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The wireless communication system is segmented into multiple independent dual-polarized links operating in parallel. Each polarization dimension (horizontal and vertical) provides separate communication channels, allowing the system to divide traffic loads and avoid congestion by routing data through different polarization segments simultaneously.

Inventive Principle:

Principle #1Segmentation

2Area of stationary object

If more wireless access points are introduced to extend coverage, then coverage range increases, but latency increases

Engineering Contradiction:

Improvewireless coverage areaVSAvoidcommunication latency

Core Design Contradiction:

Area of stationary objectVSLoss of time

Solution Approach 1:

The patent merges horizontal and vertical polarization channels into a unified dual-polarized communication system. This combination allows simultaneous transmission through both polarization dimensions, effectively doubling the available communication paths and reducing latency by parallelizing data transmission rather than sequentially routing through multiple access points.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The dual-polarized analog data links provide continuous, uninterrupted communication paths through spatial and polarization diversity. By maintaining active communication channels in both polarization dimensions simultaneously, the system ensures continuous data flow without the interruptions and handoff delays that occur when using multiple sequential access points.

Inventive Principle:

Principle #20Continuity of useful action

3Reliability

If digital backhaul systems are used, then connectivity is provided, but system complexity and cost increase

Engineering Contradiction:

Improveconnectivity reliabilityVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces complex digital signal processing and decoding systems with simpler analog signal transmission and detection. By using direct analog modulation and detection in the radio frequency domain, the system achieves reliable connectivity without requiring complex digital backhaul infrastructure, reducing both device complexity and deployment cost.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system changes the operational parameters from digital domain processing to analog domain transmission. By operating directly in the analog RF domain with dual-polarized signals, the system maintains connectivity reliability while avoiding the complexity of digital-to-analog conversion, signal processing, and error correction mechanisms required in digital backhaul systems.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12500611B1System and method for telemetry information-based signal interference mitigation in wireless backhaul mesh network

Publication Date: 2025.12.16 PELTBEAM INC

AI summary

A wireless communication system includes a central cloud server that causes a plurality of hybrid analog-digital repeater devices to extract a reference signal independently from a first type of polarization and a second type of polarization at each of the plurality of hybrid analog-digital repeater devices, monitors, over time, a signal metric of the extracted reference signal at a plurality of different locations for the plurality of hybrid analog-digital repeater devices, detects an interferer in a specific area across a wireless backhaul mesh network in a case where the signal metric of the extracted reference signal is dropped beyond a defined threshold at a given location of the plurality of different locations, estimates a location of the interferer based on the detected interferer in the specific area, and analyzes the estimated location of the interferer and previous movement patterns of the interferer to predict a future trajectory of the interferer.