CBRS Power Suspension Control for Selective CBSD Shutdown

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Solution Overview

Problem

CBRS networks experience inefficiencies due to power consumption when spectrum access system suspensions occur, as CBSDs continue to draw power despite not transmitting, leading to environmental and economic inefficiencies.

Innovation Solution

Implement a power saving engine that receives suspension commands from the SAS, generates a list of impacted CBSDs, and instructs service provider components to turn off power for these devices, and reverses this action when suspensions are lifted.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If CBSDs remain online and connected during spectrum suspension, then connectivity and readiness to resume transmission are maintained, but power consumption continues despite no transmission occurring

Engineering Contradiction:

Improveconnectivity readinessVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system dynamically adjusts the operational state of CBSDs based on spectrum availability. When suspension commands are received, CBSDs transition from an online state to a powered-off state, and when suspension is lifted, they transition back to online state. This dynamic state adjustment resolves the contradiction by making the system adaptable to changing spectrum conditions.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the power state parameter of CBSDs based on spectrum suspension status. The power saving engine receives suspension commands, determines affected CBSDs, and changes their power parameter from 'on' to 'off' state, thereby reducing energy consumption while maintaining the ability to resume service when needed.

Inventive Principle:

Principle #35Parameter changes

2Use of energy by moving object

If CBSDs are turned off during spectrum suspension, then power consumption is reduced, but the ability to quickly resume service is degraded

Engineering Contradiction:

Improvepower consumptionVSAvoidservice resumption time

Core Design Contradiction:

Use of energy by moving objectVSLoss of time

Solution Approach 1:

The power saving engine proactively identifies CBSDs affected by suspension commands before they are actually suspended. By generating a suspension list and pre-coordinating with the service provider system, the engine ensures that when suspension occurs, the transition to powered-off state is immediate and coordinated, minimizing any service interruption time.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system establishes a feedback loop where the power saving engine continuously monitors suspension commands from the SAS, determines affected CBSDs, and coordinates with the service provider system to adjust power states. This feedback mechanism ensures that CBSDs are powered off only when necessary and can be quickly powered back on when suspension is lifted, minimizing service resumption time.

Inventive Principle:

Principle #23Feedback

3Use of energy by moving object

If all CBSDs are powered off during suspension, then maximum power savings are achieved, but network coverage and service availability are reduced

Engineering Contradiction:

Improvepower consumptionVSAvoidnetwork service availability

Core Design Contradiction:

Use of energy by moving objectVSProductivity

Solution Approach 1:

The power saving engine applies different power states to different CBSDs based on their specific suspension status. Instead of powering off all CBSDs uniformly, the engine generates individual suspension lists for each affected CBSD, allowing selective power management. This local quality approach ensures that only CBSDs experiencing suspension are powered off, maintaining network service availability in areas where spectrum is still available.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system segments the network into individual CBSD units, each of which can be independently powered on or off based on its specific spectrum suspension status. The power saving engine processes suspension commands at the individual CBSD level, creating separate suspension lists for each affected device. This segmentation allows maximum power savings for suspended CBSDs while maintaining service availability for non-suspended CBSDs.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20260032581A1Power savings based on spectrum access system suspension for citizens broadband radio service network

Publication Date: 2026.01.29 CHARTER COMM OPERATING LLC

AI summary

Methods and systems for saving power in response to receiving a grant suspension at a Citizens Broadband Radio Service (CBRS) device (CBSD). A method for power savings in a wireless network using Citizens Broadband Radio Service (CBRS) spectrum includes receiving, by a power saving engine from a spectrum access system (SAS), CBRS spectrum suspension commands, generating, by the power saving engine, a suspension list of CBRS devices (CBSDs) impacted by the CBRS spectrum suspension commands, and sending, by the power saving engine to service provider components, the suspension list to turn off power for the CBSDs on the suspension list.