Virtualized Domain Proxy Control for CBRS Coexistence Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional CBRS systems lack flexibility and intelligence to manage interference among lower-tier users, providing minimal functionality and failing to address changing needs and contexts effectively.
Innovation Solution
A domain proxy control system that operates as a master proxy for multiple CBSDs, providing virtualized services to manage radio frequency band access, detect device parameters, determine coexistence composites, and communicate with SAS systems to optimize spectrum usage and minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a centralized SAS controller is used to manage CBRS devices, then interference with high-priority incumbent uses is controlled, but interference among lower-tier users (PAL and GAA) remains unmanaged and device complexity increases
Solution Approach 1:
The patent divides the control function into two segments: the centralized SAS maintains authority over high-priority incumbent uses, while distributed domain proxies at individual CBSD locations manage interference coordination among lower-tier users. This segmentation reduces the complexity burden on the centralized system while maintaining reliable interference control for critical users.
Solution Approach 2:
Domain proxies act as intermediary entities between CBSDs and the centralized SAS. These proxies aggregate interference information from multiple devices and present a unified view to the SAS, enabling the system to manage lower-tier user interference without requiring direct complex coordination between each individual device and the central controller.
2Device complexity
If minimal SAS functionality is provided for CBSDs, then system simplicity is maintained, but adaptability to changing needs and contexts is insufficient
Solution Approach 1:
The patent implements local domain proxies at each CBSD location that provide customized interference management and service coordination tailored to local conditions. Each proxy can adapt to specific device requirements and environmental factors, enabling high adaptability while the centralized SAS maintains minimal functionality for overall spectrum coordination.
Solution Approach 2:
The domain proxy architecture enables dynamic local control of CBSD operations based on real-time interference conditions and service requirements. The system can adaptively adjust access parameters, priority levels, and interference tolerance thresholds at the local level without requiring changes to centralized SAS policies, providing versatility while maintaining system simplicity.
3Ease of operation
If CBSDs operate independently without coordinated control, then ease of operation is improved, but interference among lower-tier users increases
Solution Approach 1:
The domain proxy enables CBSDs to self-manage their own interference coordination by automatically collecting device parameters, determining coexistence composites, and negotiating access parameters with neighboring devices. This self-service capability maintains operational autonomy while reducing harmful interference through localized cooperative control.
Solution Approach 2:
The system implements feedback loops where domain proxies continuously monitor interference conditions and device parameters, then adjust access parameters accordingly. This feedback mechanism enables CBSDs to operate autonomously while automatically responding to changing interference environments, reducing harmful factors without sacrificing operational independence.
Data Source
AI summary
Systems, machine-readable media, and methods may facilitate controlling use of a radio frequency band. A communication device of a set of communication devices may be communicated with, and device specifications may be collected. Device parameters corresponding to the communication device may be detected. The device parameters may include a specification of a location. A coexistence composite may be determined based on the device parameters. Specifications corresponding to the coexistence composite may be developed. At least part of the specifications of the coexistence composite may be communicated with a radio frequency allocation system. Consequent to the communicating with the radio frequency allocation system, a radio frequency assignment and operating parameters for the coexistence composite may be identified. The communication device may be controlled to access the radio frequency band in accordance with the radio frequency assignment and the operating parameters for the coexistence composite.