RF White Space Resource Coexistence Management

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Current technologies face challenges in efficiently managing resource coexistence in RF white spaces, particularly in ensuring fair bandwidth sharing among heterogeneous secondary networks while prioritizing primary users, and in dynamically adjusting resource allocations to accommodate varying network needs.

Innovation Solution

A method and apparatus for resource coexistence management in RF white spaces, where a control node temporarily releases allocated resources to other network controllers, allowing periodic validation of the release's validity and returning resources when no longer needed, enabling efficient resource reallocation and sharing among neighboring networks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If resources are statically allocated to control nodes, then resource allocation is simple and stable, but resource utilization efficiency deteriorates when network needs vary

Engineering Contradiction:

Improveresource utilization efficiencyVSAvoidresource management complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent implements dynamic resource allocation by allowing control nodes to temporarily release allocated resources to the network controller when they do not need them. This transforms the static resource allocation model into a dynamic one where resources can be reallocated based on varying network demands, thereby improving resource utilization efficiency without requiring complex centralized management

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent enables control nodes to autonomously decide when to release resources based on their own needs assessment. Each control node monitors its own resource requirements and independently initiates release requests when resources are underutilized, eliminating the need for complex centralized resource management while improving overall utilization

Inventive Principle:

Principle #25Self-service

2Adaptability or versatility

If resources are permanently allocated to ensure availability, then resource availability is guaranteed, but resource sharing among multiple networks deteriorates

Engineering Contradiction:

Improveresource sharing capabilityVSAvoidresource availability guarantee

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements periodic validation of temporary resource releases through validation messages exchanged between control nodes and the network controller. This periodic confirmation mechanism ensures that released resources are still available and properly allocated while enabling resource sharing, thus maintaining reliability guarantees without permanently binding resources to single networks

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The network controller acts as an intermediary that manages temporary resource releases and reallocations. It receives release requests from control nodes, validates them through periodic messages, and coordinates resource sharing among multiple networks, enabling versatile resource sharing while maintaining reliability through centralized coordination

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If resource allocation is frequently adjusted to meet varying needs, then adaptability to network conditions improves, but system stability and interference risks worsen

Engineering Contradiction:

Improveadaptability to network conditionsVSAvoidinterference risk from frequent changes

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent requires control nodes to send advance notification messages to the network controller before temporarily releasing resources. This preliminary action allows the system to prepare for resource reallocation, coordinate with affected networks, and minimize interference risks before actual resource changes occur, thereby enabling adaptability while controlling harmful effects

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements feedback mechanisms through validation messages that periodically confirm the status of temporarily released resources. This feedback loop allows the network controller to monitor resource allocation changes, detect potential interference issues, and coordinate with affected control nodes to mitigate harmful effects while maintaining adaptability to changing network conditions

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS9473946B2Method, apparatus, and computer program product for temporary release of resources in radio networks

Publication Date: 2016.10.18 NOKIA TECHNOLOGIES OY

AI summary

Method, apparatus, and computer program product embodiments are disclosed to for resource coexistence management in RF white spaces. An example embodiment includes a method including receiving by a control node of a wireless network, an allocation of resources and an indication of allowance to release resources temporarily from a network controller serving the control node; and transmitting by the control node to the network controller, a message indicating temporary release of a portion of the allocated resources.