Dynamic QoS Management for Self-Backhauled LTE Base Stations
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Solution Overview
Problem
Current LTE systems lack efficient mechanisms for managing radio resources on self-backhauled links, leading to static resource allocation that fails to adapt to dynamic Quality of Service (QoS) needs, resulting in over-provisioning, QoS violations, and suboptimal resource sharing between backhauled and regular UE bearers.
Innovation Solution
Implement a method to dynamically reconfigure radio resources allocated to the backhaul bearer based on changes in the number and characteristics of UE bearers, allowing for dynamic admission control and efficient QoS management to ensure optimal resource utilization and prevent resource congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If static resource allocation is used for backhaul bearers, then device complexity is reduced and ease of operation is improved, but adaptability deteriorates and QoS violations occur
Solution Approach 1:
The patent implements dynamic resource allocation for backhaul bearers by continuously monitoring the number of multiplexed UE bearers and adjusting the backhaul bearer configuration accordingly. The system transitions from static to dynamic resource management, where resource parameters such as guaranteed bit rate and maximum bit rate are automatically updated based on real-time bearer conditions, ensuring adaptability while maintaining operational efficiency through automated control mechanisms.
2Reliability
If resources are over-provisioned to ensure QoS, then reliability is improved, but loss of substance increases due to inefficient resource utilization
Solution Approach 1:
The patent employs feedback mechanisms where the system continuously monitors the actual usage of backhaul bearer resources and compares it with the allocated resources. Based on this feedback, the system dynamically adjusts resource allocation to match actual需求的, preventing both over-provisioning and under-provisioning. The feedback loop ensures that QoS requirements are met while minimizing resource waste by allocating exactly the amount of resources needed.
3Adaptability or versatility
If dynamic reconfiguration is implemented, then adaptability is improved and resource efficiency increases, but device complexity increases
Solution Approach 1:
The patent implements self-service mechanisms where the base station automatically performs resource reconfiguration without requiring manual intervention or complex external control systems. The system monitors bearer conditions, determines when reconfiguration is needed, and executes the reconfiguration autonomously based on predefined criteria and algorithms. This self-service approach reduces operational complexity while maintaining high adaptability, as the system manages its own resources dynamically without adding significant operational burden.
4Device complexity
If static resource allocation is used, then device complexity is reduced, but productivity deteriorates due to suboptimal resource utilization
Solution Approach 1:
The patent transitions from static to dynamic resource allocation to improve productivity. The system continuously adapts resource allocation based on the number of multiplexed UE bearers and their QoS requirements, ensuring that radio resources are always utilized optimally. This dynamic approach increases productivity by preventing resource under-utilization while maintaining manageable complexity through automated control algorithms that follow predefined reconfiguration criteria.
Data Source
AI summary
A method manages bearers over a first wireless link between a self-backhauled base station and a base station, where the self-backhauled base station serves one or more user equipments (UEs) via one or more second wireless links in a network. The method is implemented at the self-backhauled base station and includes identifying changes in numbers and/or characteristics of UE bearers multiplexed onto a backhaul bearer associated with the first wireless link. The method further includes dynamically reconfiguring resources allocated to the backhaul beare.