Dynamic Split Ratio Control for Dual-Connected Uplink Paths
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Solution Overview
Problem
In wireless communication systems, there is a challenge in dynamically controlling the split ratio for dual-connectivity service and determining the primary uplink path for dual-connected users, particularly in 4G LTE and 5G NR networks, to optimize data flow and communication efficiency across multiple air-interface connections.
Innovation Solution
A computing system dynamically controls the split ratio and primary uplink path by comparing metrics such as spectral efficiency, fading, insertion loss, beamforming support, MIMO support, and aggregate frequency bandwidth of the connections, and adjusts the data split accordingly to maximize service quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dual-connectivity service is implemented to increase data rate and service quality, then communication performance is improved, but system complexity and difficulty in controlling data flow distribution increase
Solution Approach 1:
The patent implements dynamic control of the split ratio for data flow distribution between master node and secondary node. The computing system continuously monitors connection metrics and adjusts the split ratio in real-time based on current network conditions, transforming the static resource allocation into a dynamic adaptive system that optimizes data rate while managing complexity through automated control.
Solution Approach 2:
The patent changes the parameter being controlled from fixed to variable by introducing dynamic adjustment of the split ratio. Instead of predetermined static allocation, the system modifies the data flow distribution parameter based on measured connection metrics including spectral efficiency, fading, insertion loss, beamforming support, MIMO support, and aggregate frequency bandwidth, thereby improving productivity while managing complexity through parameter optimization.
2Productivity
If dynamic control of split ratio is implemented to optimize data flow, then communication efficiency is improved, but control complexity and difficulty in determining primary uplink path increase
Solution Approach 1:
The patent dynamically adjusts the split ratio parameter based on multiple connection metrics including spectral efficiency, fading, insertion loss, beamforming support, MIMO support, and aggregate frequency bandwidth. This parameter change approach optimizes communication efficiency by adapting data flow distribution to current network conditions while managing control complexity through systematic evaluation of multiple metrics.
Solution Approach 2:
The patent implements a feedback mechanism where the computing system continuously monitors connection metrics and uses this information to adjust the split ratio. The system receives feedback about network conditions and translates this into control decisions regarding data flow distribution and primary uplink path selection, thereby optimizing communication efficiency while managing control complexity through closed-loop control.
3Reliability
If multiple connection metrics are considered for dynamic control, then service quality is improved, but measurement and detection difficulty increase
Solution Approach 1:
The patent evaluates multiple connection metrics including spectral efficiency, fading, insertion loss, beamforming support, MIMO support, and aggregate frequency bandwidth to determine the optimal split ratio. By considering multiple parameters simultaneously, the system improves service quality and reliability of dual-connectivity service while managing measurement difficulty through integrated evaluation of all relevant metrics.
Data Source
AI summary
A method and system for controlling data split of a dual-connected user equipment device (UE) when the UE has at least two co-existing air-interface connections including a first air-interface connection with a first access node and a second air-interface connection with a second access node. An example method includes (i) comparing an aggregate frequency bandwidth of the first air-interface connection with an aggregate frequency bandwidth of the second air-interface connection, (ii) based at least on the comparing, establishing a split ratio that defines a distribution of data flow of the UE between at least the first air-interface connection and the second air-interface connection, and (iii) based on the establishing, causing the established split ratio to be applied. Further the method could include using the comparison as a basis to set one of the UE's air-interface connections as the UE's primary uplink path.