Wireless Repeater Bearer Modification for Latency Control
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Solution Overview
Problem
In wireless data communication systems, non-GBR bearers through long repeater chains often experience excessive latency, leading to slow connections, particularly for users with non-GBR QCI 9 bearers, which can impair service quality.
Innovation Solution
A wireless communication network modifies non-GBR bearers to GBR bearers by monitoring latency and requesting bearer modifications from the core packet network when latency thresholds are exceeded, allowing for improved resource allocation and reduced latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If wireless repeaters are used to extend coverage range, then the service footprint is extended, but latency increases excessively
Solution Approach 1:
The system dynamically changes the QoS parameter (from non-GBR to GBR) based on the detected latency condition through repeater chains, transforming the bearer type to guarantee bit rate and reduce latency while maintaining the extended coverage area
2Loss of energy
If non-GBR bearers are used for data communication, then cost is reduced, but service quality deteriorates due to excessive latency
Solution Approach 1:
The system dynamically transitions the bearer type from static non-GBR to GBR when latency thresholds are exceeded, allowing the network to adapt QoS levels based on real-time conditions rather than maintaining a fixed bearer type
Solution Approach 2:
The wireless access node monitors latency metrics and uses this feedback to trigger bearer modification requests, creating a closed-loop control system that adjusts QoS based on actual performance conditions
3Loss of time
If GBR bearers are used to reduce latency, then service quality is improved, but resource allocation complexity increases
Solution Approach 1:
Instead of converting all bearers to GBR, the system applies GBR only partially - specifically to non-GBR bearers that exceed latency thresholds through repeater chains, avoiding unnecessary complexity for bearers that don't require it
Data Source
AI summary
A wireless communication network modifies a non-Guaranteed Bit Rate (non-GBR) bearer through a wireless repeater chain into a Guaranteed Bit Rate (GBR) bearer. A wireless access node exchanges user data with User Equipment (UE) over the non-GBR bearer through the wireless repeater chain. The wireless node monitors latency of the user data exchange over the non-GBR bearer through the wireless repeater chain. When the latency of the non-GBR bearer through the wireless repeater chain exceeds a latency threshold, the wireless node transfers a bearer modification request for the UE to a core packet network. The wireless node receives a bearer modification instruction for the UE from the core packet network to modify the non-GBR bearer into a GBR bearer. In response, the wireless node modifies the non-GBR bearer into the GBR bearer and exchanges user data with the UE over the GBR bearer through the wireless repeater chain.