Electronic device, communication method and computer program product
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Solution Overview
Problem
The existing CBRS system lacks a perfect mechanism for managing interference thresholds, leading to inefficiencies in spectrum access and potential harm to incumbent users, with the centralized SAS being prone to single-point failures and overburdened with management responsibilities.
Innovation Solution
Implement an interference margin allocation mechanism where PAL users propose interference margin allocation schemes to GAA users, which are then verified by the SAS, allowing flexible spectrum access while ensuring no harm to incumbent users, utilizing blockchain technology for efficient information sharing among PAL users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a centralized Spectrum Access System (SAS) is used to manage all CBRS devices, then spectrum access coordination is achieved, but the system becomes prone to single-point failure and the SAS becomes overburdened with management responsibilities
Solution Approach 1:
The patent divides the centralized SAS management function into distributed components: SAS maintains incumbent protection functions while PAL users are empowered with autonomous interference management capabilities. This segmentation distributes the management burden from the centralized SAS to individual PAL users, reducing the SAS's workload and eliminating the single-point failure risk.
2Productivity
If GAA users are allowed to access the frequency band without interference protection, then spectrum utilization increases, but interference to incumbent users may occur
Solution Approach 1:
The patent introduces PAL users as intermediary entities between incumbent users and GAA users. PAL users act as coexistence managers that autonomously evaluate interference conditions and provide interference margins to GAA users, enabling spectrum access while protecting incumbent users without requiring centralized SAS intervention for each access decision.
3Reliability
If interference margin allocation is centrally managed by SAS, then interference protection is ensured, but spectrum access efficiency decreases due to centralized bottleneck
Solution Approach 1:
The patent enables PAL users to autonomously perform interference margin allocation and coexistence management functions without requiring centralized SAS approval for each transaction. PAL users self-evaluate interference conditions, calculate interference margins, and directly negotiate with GAA users, eliminating the centralized bottleneck while maintaining interference protection through technical evaluation.
Data Source
AI summary
The present disclosure relates to an electronic device, a communication method and a computer program product. An electronic device for a General Authorized Access (GAA) user comprises processing circuitry configured to: inquire a Priority Access License (PAL) user for spectrum availability information on a Citizen Broadband Radio Service (CBRS) system; in absence of available frequency bands, receive from said PAL user at least one interference margin allocation scheme proposed by one or more PAL users; based on a particular interference margin allocation scheme of the at least one interference margin allocation scheme, initiate a CBRS system spectrum access procedure with a Spectrum Access System (SAS).