LSA Message Feedback Controller for Reverse Link Spectrum Management

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Solution Overview

Problem

Current Licensed Shared Access (LSA) architecture lacks mechanisms for cellular operators to initiate message exchanges, leading to unsuitable handling of confidential and sensitive data, and inefficient spectrum usage due to unidirectional information flow.

Innovation Solution

The introduction of an LSA Message Feedback (LSA-MFB) controller enables secure reverse link messaging from cellular operators to target incumbents, allowing for real-time, point-to-point information exchange and improving spectrum management by enabling operators to request spectrum adjustments and report interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a unidirectional information flow architecture is used from incumbent to cellular operator, then the incumbent can control spectrum availability, but the cellular operator cannot initiate message exchanges or provide feedback

Engineering Contradiction:

Improvemessage exchange capabilityVSAvoidarchitecture complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent introduces a feedback mechanism where the cellular operator can send messages back to the incumbent through the LSA controller. This enables bidirectional communication allowing the operator to request spectrum adjustments and report interference, while the incumbent can respond to these requests, creating a closed-loop control system that improves adaptability without excessive complexity

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The LSA controller serves as an intermediary entity that mediates communication between the incumbent and cellular operator. It receives requests from the operator, forwards them to the incumbent, and relays responses back, enabling message exchange capability while maintaining a manageable architecture through centralized coordination

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If confidential operator feedback is transmitted without secure reverse link messaging, then spectrum management can be improved, but operator data confidentiality is compromised

Engineering Contradiction:

Improvespectrum management efficiencyVSAvoiddata confidentiality

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The LSA controller acts as a secure intermediary that handles confidential operator feedback. It establishes secure communication channels between the operator and incumbent, ensuring that sensitive spectrum management data is transmitted confidentially while still enabling efficient spectrum coordination and interference reporting

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent implements a secure feedback loop where operator observations about interference and spectrum usage are transmitted confidentially back to the incumbent. This encrypted feedback mechanism allows for improved spectrum management decisions while protecting operator proprietary information and maintaining data confidentiality

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS10104662B2Licensed shared access reverse link and message feedback control

Publication Date: 2018.10.16 INTEL CORP

AI summary

A licensed shared access (LSA) Message Feedback controller device is configured to convey reverse link messages from an LSA controller to one or more target incumbent frequency licensees. The LSA controller is configured to control LSA frequency spectrum availability for use by eNodeBs of a wireless communication system.