Licensed Spectrum Coordination for Dynamic Opportunistic Access
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in managing licensed spectrum allocation, leading to operational losses and inferior service quality due to underutilization of available spectrum, particularly in urban-rural areas and between terrestrial and non-terrestrial networks.
Innovation Solution
A Licensed Spectrum Coordination System (LSCS) that dynamically coordinates spectrum usage between owners and seekers through a spectrum access optimization module (SAOS), enabling efficient sharing and opportunistic use of licensed spectrum, including between terrestrial and non-terrestrial networks, and facilitating spectrum sharing with community networks and IoT devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If licensed spectrum is allocated exclusively to service providers, then service quality is maintained, but spectrum utilization efficiency deteriorates due to underutilization in various geographic areas
Solution Approach 1:
The patent implements dynamic spectrum sharing where spectrum allocation transitions from static exclusive licensing to dynamic opportunistic access. The system allows unlicensed devices to access licensed spectrum when the licensed service provider is not actively using it, creating a flexible, time-varying allocation scheme that adapts to actual spectrum demand and usage patterns
Solution Approach 2:
The patent introduces a spectrum coordination mechanism that acts as an intermediary between licensed service providers and unlicensed devices. This intermediary manages spectrum access rights, coordinates usage timing, and ensures that licensed services maintain priority access while allowing unlicensed devices to utilize unused spectrum resources
2Productivity
If spectrum is shared between multiple operators, then spectrum utilization improves, but interference management complexity increases
Solution Approach 1:
The patent applies local quality by allowing spectrum sharing decisions to be made independently for different geographic areas and frequency bands. Each licensed service provider can define its own sharing policies and interference tolerance levels for specific locations and spectrum chunks, enabling localized optimization without requiring complex global coordination
Solution Approach 2:
The system implements dynamic interference management where unlicensed devices continuously monitor spectrum usage and adapt their transmission parameters in real-time. When licensed services become active, unlicensed devices automatically reduce or cease transmissions to avoid interference, creating a self-regulating mechanism that reduces management complexity
3Productivity
If licensed spectrum is made available for opportunistic access, then spectrum efficiency improves, but risk of interference with licensed services increases
Solution Approach 1:
The patent implements preliminary anti-action by requiring unlicensed devices to continuously monitor for licensed service activity before accessing spectrum. The system proactively prevents interference by detecting licensed transmissions and immediately suspending unlicensed access, rather than reacting to interference after it occurs
Solution Approach 2:
The system employs feedback mechanisms where unlicensed devices receive real-time information about licensed service usage and adjust their spectrum access accordingly. This feedback loop ensures that opportunistic access decisions are based on current spectrum conditions, dynamically reducing interference risk while maintaining spectrum efficiency
Data Source
AI summary
A system and method for maximizing the use of licensed spectrum between spectrum owners and spectrum seekers. The method includes the receiving profiles from the spectrum owners and the spectrum seekers, wherein the profiles of the spectrum owners have characteristics or conditions associated with the spectrum usage by the spectrum seeker and the profiles of the spectrum seekers comprise characteristics or conditions associated with the spectrum usage accepted by the spectrum seekers. Based on the profiles, spectrum owner-spectrum seeker pairs can be generated for the allocation of an available spectrum chunk to one or more spectrum seekers. Negotiations can be facilitated between the spectrum owners and seekers, wherein status updates for allocation of the available spectrum chunk are provided to the spectrum owners and seeker.