Access Node UE Offloading for High Uplink Noise
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Solution Overview
Problem
High uplink noise levels in wireless communication systems can lead to increased uplink transport-block errors and retransmissions, reducing throughput and causing UEs with low battery energy to drain faster, potentially resulting in connectivity issues or shutdowns.
Innovation Solution
An access node detects high uplink noise and proactively discontinues serving UEs with low remaining battery energy by initiating a battery-level-based UE-offloading process, transitioning them to a different cell to reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If UEs continue to be served in high uplink noise cells, then system throughput is maintained through continued service, but battery energy is drained faster due to increased retransmissions
Solution Approach 1:
The access node performs preliminary detection of uplink noise levels and proactively identifies UEs with low battery energy before severe battery drainage occurs. By detecting high uplink noise conditions and low battery states in advance, the system can trigger UE offloading to neighboring cells before the UE experiences connectivity issues or shutdown, thus preventing excessive battery consumption while maintaining system throughput.
2Reliability
If UEs with low battery energy are offloaded from noisy cells, then battery drain is reduced and connectivity is maintained, but system throughput may decrease due to redistribution of UEs
Solution Approach 1:
The system applies differentiated service quality to different UEs based on their local conditions. UEs with low battery energy in high noise cells are selectively offloaded to neighboring cells, while other UEs continue to be served in the original cell. This localized intervention maintains connectivity reliability for vulnerable UEs without causing widespread throughput degradation, as only specific UEs are redistributed rather than all UEs in the cell.
3Reliability
If the access node monitors uplink noise levels and UE battery energy, then UE battery drain is prevented through proactive offloading, but device complexity increases due to additional monitoring and control functions
Solution Approach 1:
The access node implements feedback mechanisms by monitoring uplink noise levels and receiving battery energy status reports from UEs. This feedback information is used to dynamically adjust serving decisions, triggering offloading actions when high noise and low battery conditions are detected. The feedback loop enables automated, adaptive control that improves connectivity reliability without requiring complex manual intervention, as the system self-adjusts based on real-time conditions.
Data Source
AI summary
A method and system for controlling connectivity of a user equipment device (UE). When the UE is connected with an access node in a cell provided by the access node, the access node determines that uplink noise in the cell is threshold high. And responsive to at least determining that uplink noise in the cell is at least threshold high, the access node applies a battery-level-based UE-offloading process to offload the UE from the cell. For instance, the access node could cause the UE to hand over or otherwise transition from being connected in the cell to instead being connected in another cell.