Frequency Allocation for Incumbent Systems

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Solution Overview

Problem

Existing frequency assignment methods in environments with incumbent systems face challenges in efficiently managing frequency resources, especially when multiple radio technologies coexist and share channels, leading to interference and coexistence issues.

Innovation Solution

A method and apparatus that classify frequency sets based on sub-frequency resource utilization states to effectively assign and manage frequency resources, prioritizing available and restrictively available sub-frequency resources to frequency sharing systems, ensuring compliance with regulations and minimizing interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If frequency sharing is implemented to enhance frequency utilization efficiency, then spectrum utilization is improved, but interference with incumbent systems and coexistence issues arise

Engineering Contradiction:

Improvefrequency utilization efficiencyVSAvoidinterference with incumbent systems

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent segments the frequency resource into multiple sub-frequency resources and classifies them into different sets (first frequency set for sole assignment to frequency sharing system, second frequency set for shared assignment, third frequency set for incumbent system only). This segmentation allows the system to allocate different portions of the frequency spectrum to different users based on their needs and constraints, thereby improving frequency utilization while preventing interference with incumbent systems.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by assigning different usage rights to different sub-frequency resources within the same frequency band. Specifically, some sub-frequency resources are designated exclusively for the frequency sharing system, others for shared use, and others for incumbent system only. This localized differentiation enables efficient spectrum utilization in regions where interference is manageable while protecting incumbent systems in regions where they are vulnerable.

Inventive Principle:

Principle #3Local quality

2Productivity

If multiple radio technologies coexist and share channels, then frequency sharing efficiency is improved, but coexistence issues and system complexity increase

Engineering Contradiction:

Improvefrequency sharing efficiencyVSAvoidcoexistence management complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent segments frequency resources into distinct sets with clearly defined assignment rules, which simplifies the management of multiple radio technologies. By categorizing sub-frequency resources into first, second, and third frequency sets with specific assignment protocols, the system reduces the complexity of coordinating multiple radio technologies compared to unstructured frequency sharing.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent changes the parameter of frequency assignment by introducing a classification mechanism that assigns different usage parameters to different sub-frequency resources. This parameter-based management approach (sole assignment, shared assignment, incumbent-only assignment) provides a systematic framework for managing multiple radio technologies, reducing coexistence management complexity through standardized assignment rules.

Inventive Principle:

Principle #35Parameter changes

3Productivity

If sub-frequency resources are classified and managed separately, then frequency resource management is improved, but system complexity increases

Engineering Contradiction:

Improvefrequency resource management efficiencyVSAvoidfrequency classification complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent segments frequency resources into classified sets with specific assignment rules, which improves management efficiency by providing clear guidance for frequency allocation. The classification into first, second, and third frequency sets creates a structured management approach that enhances productivity despite the added complexity of classification.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces a classification parameter system that categorizes sub-frequency resources based on their assignment characteristics. This parameter-based classification improves frequency resource management by enabling systematic allocation decisions, where the classification itself becomes a management tool that balances structure with flexibility.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentEP3220675B1Frequency allocation method and device for a frequency sharing system in an environment where an incumbent system exists

Publication Date: 2019.11.06 ELECTRONICS & TELECOMM RES INST

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AI summary

Provided is a method and apparatus for assigning a frequency in an environment where an incumbent system exists. In a frequency environment where the incumbent system exists, a frequency resource management may be smoothly performed using a plurality of frequency sets classified based on a utilization state of each sub-frequency resource. When a frequency sharing system using the same radio access technology (RAT) as a frequency sharing system to be assigned with a frequency resource exists, it is possible to reduce overhead for frequency sharing by priorly assigning a corresponding frequency resource to the frequency sharing system to be assigned with the frequency resource.