Frequency Overlay Communication System for Efficient Resource Allocation

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Solution Overview

Problem

Broadband communication systems face challenges due to limited frequency resources and high license costs, necessitating a solution that maximizes frequency resource efficiency while ensuring backward compatibility with existing systems.

Innovation Solution

A frequency overlay communication system utilizing two frequency bands, where a second frequency band includes a first frequency band, allowing for efficient resource allocation and scheduling to increase multiuser diversity gain and reduce license costs, while maintaining compatibility with existing systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate frequency bands are allocated to broadband communication systems, then service quality is improved, but license cost increases

Engineering Contradiction:
Improveservice qualityVSAvoidlicense cost
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The patent combines narrowband and broadband communication systems into a single frequency band, allowing both services to coexist and share resources. This merging approach eliminates the need for separate frequency band allocations, thereby reducing license costs while maintaining service quality through proper resource management and scheduling mechanisms.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent creates a universal frequency band that serves multiple functions - supporting both narrowband and broadband services simultaneously. This multi-functional approach allows a single frequency allocation to fulfill multiple communication needs, reducing the total amount of frequency resources required and consequently lowering license costs.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If frequency bands are expanded for broadband service, then service capacity is improved, but license cost increases

Engineering Contradiction:
Improveservice capacityVSAvoidlicense cost
Core Design Contradiction:
ProductivityVSQuantity of substance

Solution Approach 1:

The patent implements dynamic resource allocation where frequency resources are flexibly assigned based on real-time service demands. Broadband services can dynamically access additional frequency resources when needed, while narrowband services utilize remaining resources. This dynamic approach increases service capacity without requiring permanent allocation of expanded frequency bands, thereby controlling license costs.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the allocation parameters of frequency resources, allowing the same frequency band to serve different services at different times or with different priority levels. By adjusting these parameters dynamically, the system achieves high service capacity utilization without needing additional frequency spectrum, thus avoiding increased license costs.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If new broadband systems are deployed, then service diversity is improved, but backward compatibility becomes difficult

Engineering Contradiction:
Improveservice diversityVSAvoidbackward compatibility
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the frequency band into different regions or sub-channels that can be allocated to different services. Narrowband and broadband services are assigned different segments with appropriate characteristics, allowing new broadband services to be deployed while existing narrowband services continue to operate in their designated segments, thus maintaining backward compatibility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces scheduling mechanisms and control functions as intermediaries that manage resource allocation between narrowband and broadband services. These intermediary components coordinate the interactions between different service types, enabling service diversity while ensuring that legacy narrowband services continue to function properly, thus resolving the backward compatibility issue.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP1715705B1Apparatus and methods for a frequency overlay communication system
Publication Date: 2019.05.29 NOKIA TECHNOLOGIES OY
  • EP1715705B1 patent drawingFigure 1
  • EP1715705B1 patent drawingFigure 2~3
  • EP1715705B1 patent drawingFigure 4

AI summary

A frequency overlay communication system that includes a first communication system for performing communication using a first frequency band being a preset bandwidth; and a second communication system for performing communication using a second frequency band being a second preset bandwidth, wherein the second frequency band includes the first frequency band.