Base Station Buffer Time Monitoring for UE Handover
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, data buffering due to resource limitations can lead to significant delays and packet drops, degrading user experience, as base stations may need to impose rate caps and discard packets when resources are overwhelmed, resulting in suboptimal handover decisions.
Innovation Solution
A method and system where a base station measures buffer times and packet drop rates to determine when to invoke handover of a UE to a neighboring base station, based on threshold values, thereby managing data buffering and improving resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the base station receives data at a high rate, then the data transmission throughput is improved, but the buffer time increases and packet drops occur due to rate capping
Solution Approach 1:
The base station performs preliminary actions by measuring buffer time and packet drop rate before handover decisions are made. This allows the system to proactively identify UEs experiencing buffering issues and initiate handover before severe packet loss occurs, resolving the contradiction by preventing the worsening effect rather than reacting to it
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring buffer time and packet drop rate metrics, then using this feedback to make informed handover decisions. This closed-loop control allows the system to adapt to changing buffer conditions and optimize the balance between throughput and delay
2Adaptability or versatility
If the base station imposes rate caps to manage resources, then resource allocation is improved, but packet loss increases due to discarded packets
Solution Approach 1:
The base station uses feedback from packet drop rate measurements to determine when handover is necessary. This allows the system to maintain rate caps for resource management while compensating for the reliability loss through timely handover to base stations with available resources
Solution Approach 2:
The handover mechanism acts as an intermediary solution that resolves the conflict between rate capping and packet delivery reliability. By transferring UEs to different base stations based on buffer conditions, the system maintains resource allocation control while preserving service reliability
3Stability of the object's composition
If the base station buffers excess data, then data transmission continuity is improved, but user experience degrades due to delays
Solution Approach 1:
The system takes preliminary action by measuring buffer time and triggering handover before excessive delays degrade user experience. This proactive approach maintains data transmission continuity by preventing buffer overflow while preserving user experience through timely handover decisions
4Productivity
If the base station increases data reception rate, then productivity is improved, but device complexity increases due to buffering management
Solution Approach 1:
The base station performs self-service by autonomously measuring its own buffer time and packet drop rate, then making handover decisions based on these measurements. This self-monitoring and self决策 capability reduces the need for complex external buffering management while maintaining high data reception rates
Data Source
AI summary
Disclosed is a method and system to help manage handover of a UE based on data buffering. In accordance with the disclosure, when a base station receives data destined for a UE, the base station may record the received data into a data buffer for temporary storage and retrieve the data at some later time to transmit the data to the UE. The base station may then determine, based at least in part on an amount of elapsed time from recording the data to retrieving the data, whether to invoke handover of the UE from being served by the base station to being served by a different, neighboring base station.