Virtual Fiber Backhaul for Dynamic Spectrum Sharing
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Solution Overview
Problem
Existing wireless and fiber infrastructure struggle to meet the demands of high-bandwidth applications due to inconsistent performance, complex deployments, static spectrum allocation, and latency issues, leading to underutilization of spectrum resources and limited scalability.
Innovation Solution
A virtual fiber communication system with a central cloud server and hybrid analog-digital repeater devices that dynamically manage spectrum sharing, utilizing blockchain-based spectrum brokers and adaptive spectrum sharing processors to optimize spectrum use and provide ultra-reliable, ultra-low latency connectivity through a wireless backhaul mesh network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If static spectrum allocation is used, then spectrum assignment is simple, but spectrum utilization efficiency deteriorates due to inability to adapt to dynamic demands
Solution Approach 1:
The patent implements dynamic spectrum allocation by allowing the base station to select from multiple available channels (e.g., 3.5GHz and 5GHz bands) based on real-time traffic conditions and user requirements. The system dynamically adjusts spectrum usage through channel switching and flexible resource allocation, transforming the static assignment model into a dynamic adaptive system that optimizes utilization while managing complexity through automated decision-making algorithms.
2Area of stationary object
If more relay nodes are added to extend communication range, then network coverage is improved, but latency increases
Solution Approach 1:
The patent applies preliminary action by pre-establishing multiple backhaul links with different latency characteristics before actual data transmission occurs. The system pre-configures direct base station connections and relay node pathways, allowing traffic to be routed through the most efficient path in advance. This enables the network to prepare alternative low-latency routes ahead of time, reducing latency when data needs to be transmitted without requiring additional relay nodes to be activated dynamically.
Solution Approach 2:
The patent segments the backhaul network into multiple independent links with different characteristics (direct links vs. relay links, different frequency bands). By dividing the communication path into separable segments, the system can selectively use direct base station connections for latency-sensitive traffic while using relay nodes only when necessary for coverage extension, thus managing the trade-off between coverage and latency through segmented network architecture.
3Reliability
If fiber backhauling is used, then signal transport reliability is improved, but deployment complexity and cost increase
Solution Approach 1:
The patent uses wireless backhaul links as a functional copy or alternative to physical fiber infrastructure. Instead of deploying costly fiber-optic cables for every connection, the system creates virtual fiber equivalents through coordinated wireless links between base stations and relay nodes. This wireless copying approach maintains signal transport reliability through protocol optimization and coordination while dramatically reducing deployment complexity by eliminating the need for physical cable installation in every location.
Solution Approach 2:
The patent introduces relay nodes as intermediary devices that mediate between the core network and edge users. These relay nodes act as intermediate points that can be deployed more easily than direct fiber connections, providing signal transport reliability through multiple hops while reducing overall deployment complexity by using wireless intermediaries rather than requiring end-to-end fiber infrastructure.
4Ease of manufacture
If conventional Wi-Fi mesh topologies are used, then deployment is simple, but performance deteriorates due to shared channel contention and interference
Solution Approach 1:
The patent segments the wireless spectrum into dedicated backhaul channels and access channels, separating the functions of network coordination and data transmission. By dividing the spectral resources and spatial functions, the system reduces shared channel contention and interference between different types of traffic. This segmentation allows simpler deployment like Wi-Fi mesh while achieving higher throughput by eliminating the performance bottlenecks of conventional shared-medium approaches.
Data Source
AI summary
A virtual fiber communication system includes a central cloud server that obtains telemetry information from a plurality of network nodes in a backhaul network. The network nodes include hybrid analog-digital repeater devices. The server also obtains frequency-spectrum availability metadata and custom-defined spectrum-access parameters from spectrum-owner nodes. The server causes each hybrid analog-digital repeater to form dual analog data links on a first and a second polarization with at least one neighboring hybrid analog-digital repeater. Using the telemetry information, the frequency-spectrum availability metadata, and the custom-defined spectrum-access parameters, the server detects spectrum-availability variations across the network nodes, determines routing paths for a first type of UEs designated as premium users, generates control signals that assign data streams to rented or leased spectrum frequencies, and selects one of the routing paths to deliver the data streams to the premium UEs while satisfying the custom-defined spectrum-access parameters.