Dynamic Spectrum Control for Wireless Interference
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Solution Overview
Problem
Current wireless technologies face challenges in optimizing user experience due to crowding and interference in unlicensed spectrum bands, particularly in high-density scenarios, and lack network-wide coordination and integration, especially for multi-mode content distribution networks.
Innovation Solution
The implementation of methods and apparatus for dynamically controlling access to and utilization of quasi-licensed spectrum, such as Citizens Broadband Radio Service (CBRS), by transitioning between unlicensed and quasi-licensed bands based on performance indicators and spectrum availability, using a controller apparatus to manage CBRS connectivity and allocate resources optimally.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If unlicensed spectrum bands are used for wireless communication, then spectrum availability and ease of access are improved, but interference and crowding increase leading to degraded service quality
Solution Approach 1:
The system dynamically transitions between unlicensed and quasi-licensed spectrum bands based on real-time performance indicators and spectrum availability. The controller monitors conditions and adapts the operating band, making the spectrum utilization dynamic rather than static, thereby resolving the contradiction between accessibility and interference
Solution Approach 2:
A controller apparatus is introduced as an intermediary between client devices and the spectrum resources. This controller manages the transition between spectrum bands, coordinates access to quasi-licensed spectrum, and optimizes resource allocation, thereby reducing interference while maintaining spectrum availability
2Reliability
If dynamic transition between spectrum bands is implemented, then service reliability and quality are improved, but system complexity increases
Solution Approach 1:
The wireless communication system is segmented into multiple operational modes (unlicensed band mode and quasi-licensed band mode) that can be independently managed. The controller manages transitions between these segmented modes, reducing the complexity burden on individual client devices while improving overall service reliability
Solution Approach 2:
The system implements feedback mechanisms where performance indicators from client devices are monitored and used to trigger spectrum band transitions. This closed-loop feedback approach automates the complexity management, allowing the system to adapt reliably without requiring complex manual control
3Area of stationary object
If multi-mode content distribution networks are integrated, then coverage and resource allocation are improved, but coordination difficulty increases
Solution Approach 1:
The controller apparatus is designed with multi-functionality to manage various wireless communication modes and coordinate resources across different spectrum bands. This universal controller handles both unlicensed and quasi-licensed spectrum, as well as multiple client devices, thereby improving coverage while centralizing coordination to manage complexity
Data Source
AI summary
Methods and apparatus for providing quasi-licensed spectrum access within an area or venue. In one embodiment, the quasi-licensed spectrum utilizes 3.5 GHz CBRS (Citizens Broadband Radio Service) spectrum allocated by a Federal or commercial SAS (Spectrum Access System) to a managed content delivery network that includes one or more wireless access nodes (e.g., CBSDs and APs) in data communication with a controller. In one variant, the controller dynamically allocates (i) spectrum within the area or venue within CBRS bands, and (ii) MSO users or subscribers to CBRS bands or WLAN (e.g., public ISM) bands in to manage interference between the coexisting networks, and maximize user experience. In another variant, the controller cooperates with a provisioning server to implement a client device application program or “app” on MSO user or subscriber client devices which enables inter-RAT access.