Bandwidth Part Adaptation for QoS-Aware 5G Energy Saving
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Solution Overview
Problem
Existing 5G wireless communication systems face challenges in efficiently managing resource allocation and energy consumption for varying demands and loads imposed by mobile devices, particularly in scenarios involving different quality of service classes like URLLC and eMBB, leading to inefficient power usage and network performance.
Innovation Solution
A radio access network node dynamically adjusts bandwidth part configurations by analyzing usage patterns and transmitting bandwidth part change indications to user equipment, allowing for resource arrangement changes that optimize energy consumption and resource allocation based on load and quality-of-service requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the radio access network node operates all bandwidth parts with full resource arrangements to maintain high service quality, then the reliability and quality of service are improved, but the energy consumption increases
Solution Approach 1:
The patent implements dynamic bandwidth part adaptation where the radio access network node monitors usage patterns and dynamically switches between different resource arrangements based on current load conditions. This allows the system to adapt resource allocation in real-time, maintaining full resources when needed for high reliability while reducing resources during low-demand periods to save energy.
Solution Approach 2:
The system changes operational parameters by switching between multiple configured resource arrangements for bandwidth parts. When usage falls below thresholds, the node transitions from a first resource arrangement to a second resource arrangement with modified parameters, thereby adjusting energy consumption while maintaining adequate service quality.
2Use of energy by moving object
If the radio access network node reduces resource arrangement for lightly used bandwidth parts to save energy, then the energy consumption is reduced, but the network performance and resource allocation efficiency deteriorate
Solution Approach 1:
The system dynamically monitors bandwidth part usage and automatically switches resource arrangements based on real-time conditions. When usage exceeds predefined thresholds, the system transitions back to full resource arrangements, ensuring network performance is maintained when needed while enabling energy savings during low-demand periods.
Solution Approach 2:
The radio access network node continuously monitors usage patterns of bandwidth parts and uses this feedback to determine when to switch between resource arrangements. This closed-loop control ensures that resource allocation decisions are based on actual network conditions, preventing performance degradation while achieving energy savings.
3Ease of operation
If the radio access network node maintains fixed bandwidth part configurations to simplify operation, then the ease of operation is improved, but the adaptability to varying load demands deteriorates
Solution Approach 1:
The system implements dynamic bandwidth part adaptation where the radio access network node automatically adjusts resource arrangements based on monitored usage patterns. This allows the system to adapt to varying load demands without requiring complex manual reconfiguration, maintaining ease of operation while achieving adaptability.
Solution Approach 2:
The radio access network node autonomously monitors its own bandwidth part usage and automatically determines when to switch between resource arrangements based on predefined criteria. This self-service capability enables the system to adapt to load variations without external intervention, maintaining operational simplicity while achieving adaptability.
Data Source
AI summary
A radio access network node transmits a bandwidth part configuration comprising one or more bandwidth part resource arrangements corresponding to one or more bandwidth parts. Responsive to determining that a bandwidth part change criterion is satisfied with respect to a particular bandwidth part, the node may indicate to only user equipment using the particular bandwidth part, via a resource arrangement change indication corresponding to a resource arrangement of the bandwidth part configuration, that the node has determined to change operation of the particular bandwidth part according to the resource arrangement indicated by the resource arrangement change indication. Other bandwidth parts used by user equipment with respect to the RAN may be unchanged by a bandwidth part resource arrangement change. A resource arrangement change indication may indicate deactivating of a resource and offloading functionality facilitated by the deactivated resource to an active resource of another bandwidth part.