5G Base Station Adaptive Bandwidth Management for Power Outages
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Solution Overview
Problem
5G base stations consume significantly more power than 4G stations, leading to increased costs and the need for multiple backup power packs during AC power outages, which is costly and inefficient, and existing solutions like shutting down operating carriers or reducing bandwidth cause service interruptions.
Innovation Solution
Implementing adaptive bandwidth management systems that monitor power and traffic loads to reassess and reduce bandwidth usage by reassigning network slices to smaller bandwidth parts during AC power outages or low traffic conditions, allowing for smart power management without service interruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If 5G base stations operate at high bandwidth to provide improved service, then quality of service is improved, but power consumption increases significantly
Solution Approach 1:
The system dynamically adjusts bandwidth allocation based on real-time traffic conditions and power availability. During AC power operation, full bandwidth is allocated for optimal service. During UPS power operation, bandwidth is reduced to extend battery life. This dynamic adaptation resolves the contradiction by making bandwidth a variable parameter rather than a fixed resource.
Solution Approach 2:
The invention changes the operating parameters of the base station by adjusting bandwidth allocation and power transmission levels based on power source conditions. When switching from AC to UPS power, the system modifies parameters such as bandwidth part (BWP) allocation, transmission power, and resource block assignment to reduce overall power consumption while maintaining essential services.
2Use of energy by moving object
If bandwidth is reduced to lower power consumption during AC power outages, then power consumption is reduced, but service quality deteriorates
Solution Approach 1:
The invention segments the bandwidth into different bandwidth parts (BWPs) with different priorities. Critical services are allocated to protected BWPs that maintain operation during UPS power, while non-critical services are allocated to BWPs that can be reduced or suspended. This segmentation allows power reduction without completely degrading service quality for essential functions.
Solution Approach 2:
Different quality levels are provided for different service types based on available power. During UPS operation, critical services (emergency calls, essential data) maintain higher quality with guaranteed bandwidth, while non-critical services experience reduced quality or suspension. This local quality differentiation maintains essential service quality while reducing overall power consumption.
3Duration of action of moving object
If multiple backup power packs are connected to ensure adequate power during outages, then operating time is extended, but cost increases significantly
Solution Approach 1:
Instead of providing full power to all functions during UPS operation, the system applies partial action by allocating power only to essential functions at reduced levels. The base station operates in a degraded mode with reduced bandwidth and power transmission, which extends the effective operating time of the battery without requiring multiple battery packs. This partial operation achieves the same cost-saving effect as having smaller battery capacity.
4Use of energy by moving object
If existing solutions shut down operating carriers or reduce bandwidth to manage power, then power consumption is reduced, but service interruptions occur
Solution Approach 1:
The system dynamically switches between different operating modes based on power source detection. When AC power is detected, full service is restored. When UPS power is detected, the system transitions to power-saving mode with reduced bandwidth allocation. This dynamic switching is managed transparently by the control unit, preventing service interruptions from the user perspective while optimizing power consumption internally.
Solution Approach 2:
The system performs preliminary detection of power source conditions and proactively adjusts bandwidth allocation before power critical situations occur. The control unit monitors AC/UPS power status and pre-configures appropriate bandwidth parts for different scenarios, ensuring seamless transition without service interruption. This preliminary preparation allows the system to adapt to power conditions without causing service disruptions.
Data Source
AI summary
Systems and methods of adaptive bandwidth (BW) management are provided by a control unit of distribution and central units to monitor power and traffic loads at a plurality of network nodes; a BW management unit communicating with the control unit to reassign a set of network slices with a set of smaller bandwidth parts (BWPs); the BW management unit configured to define a smaller BWP from a slice mapping for the slice reassignment during a AC power outage, the slicing mapping includes network slices tied to smaller BWPs in the network; and the BW management unit configured to adapt BW for users at the node by reassigning of at least one network slice with a defined smaller BWP at the node in response to a condition determined by the BW management unit, the condition of at least one of a AC power outage and reduced traffic load.