Spectrum Reclaiming via Exchange Coordinator
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Solution Overview
Problem
The limited availability of regulated spectrum for wireless communication and the challenges faced by emerging systems that seek to maximize its utilization through shared access among multiple users, particularly the inability for spectrum owners to reclaim leased spectrum efficiently, especially in scenarios like national emergencies.
Innovation Solution
A system that employs a spectrum exchange coordinator (SEC) to facilitate the leasing and reclaiming of spectrum by determining procedures for spectrum owners to reclaim leased spectrum, including dual risk evaluation and partial or gradual reclaiming operations to minimize impact on quality of service for both the spectrum owner and operators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If regulated spectrum is leased to operators for shared access, then spectrum utilization is improved, but the ability to reclaim spectrum efficiently deteriorates
Solution Approach 1:
The system performs preliminary actions by establishing reimbursement mechanisms and determining procedures in advance before spectrum reclaiming is needed. The spectrum exchange coordinator pre-configures reimbursement amounts based on historical data and lease terms, so that when reclaiming is triggered (e.g., national emergency), the process can execute immediately without negotiation delays.
Solution Approach 2:
A spectrum exchange coordinator is introduced as an intermediary between the spectrum owner and operators. This mediator automatically executes reclaiming procedures by sending notifications to affected operators, calculating reimbursements, and coordinating the transition back to exclusive owner access, thereby resolving the contradiction between shared utilization and rapid reclamation capability.
2Productivity
If spectrum is reclaimed immediately upon request, then spectrum owner needs are met, but quality of service for operators deteriorates
Solution Approach 1:
The system applies partial action by reimbursing operators for only the specific spectrum bandwidth being reclaimed, rather than requiring complete service interruption. The spectrum exchange coordinator sends notifications specifying the exact frequency ranges and time periods affected, allowing operators to maintain services on non-reclaimed portions of their spectrum while transitioning affected users to alternative frequencies.
Solution Approach 2:
The system implements feedback mechanisms where the spectrum exchange coordinator monitors the reclaiming process and adjusts reimbursement amounts based on actual service impact. Historical quality of service data is used to predict and compensate for disruptions, ensuring that operators receive adequate reimbursement while the reclamation process proceeds efficiently.
3Reliability
If dual risk evaluation is performed before reclamation, then quality of service impact is minimized, but reclamation process complexity increases
Solution Approach 1:
The spectrum exchange coordinator performs self-service by automatically evaluating risks and determining reimbursement amounts without requiring manual intervention from spectrum owners or operators. The system uses pre-configured lease terms, historical quality of service data, and standardized evaluation criteria to autonomously execute the dual risk evaluation process, reducing complexity despite the thoroughness of the assessment.
Data Source
AI summary
This disclosure is directed to spectrum reclaiming in a leased spectrum system. A spectrum exchange coordinator (SEC) may be interposed between a spectrum owner and at least one operator to facilitate the leasing and reclaiming of spectrum. Upon occurrence of a trigger, the SEC may then determine a procedure for allowing the spectrum owner to reclaim the leased spectrum. The spectrum owner may be allowed to reclaim the leased spectrum in full based on an agreement. If not previously agreed to, the spectrum owner may be allowed to reclaim at least part of the spectrum. These operations may include a dual risk evaluation to determine how reclaiming the leased spectrum will affect quality of service (QoS). Partial or gradual reclaiming may then allow the leased spectrum to be reclaimed while minimizing impact. Examples of gradual reclaiming may be based on a time domain, frequency domain, or cellular basis.