RAN Controller for Wireless Network Optimization
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Solution Overview
Problem
Current 5G network technologies face challenges in optimizing mobility, dual connectivity, and backhaul routing, which are essential for providing efficient and seamless service in advanced wireless communication systems.
Innovation Solution
The implementation of a Radio Access Network (RAN) controller that utilizes radio measurements and analytics to optimize RAN performance by influencing or controlling Central Unit (CU) and underlying protocol layers, including procedures for mobility management, dual connectivity, and integrated access and backhaul topology formation and routing updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a RAN controller is implemented to optimize mobility and dual connectivity, then the success rate of handover events improves, but the device complexity increases
Solution Approach 1:
A Radio Access Network (RAN) controller is introduced as an intermediary component that mediates between Central Units (CUs) and Distributed Units (DUs). The controller receives monitoring data from CUs, generates optimization data, and transmits it to CUs, thereby coordinating handover events and dual connectivity procedures without requiring direct complex interactions between CUs and DUs. This intermediary structure improves handover success rates while managing system complexity through centralized control logic.
2Productivity
If real-time monitoring and optimization is implemented, then network performance improves, but the loss of time for data processing increases
Solution Approach 1:
The RAN controller is configured to continuously monitor radio measurements and network performance metrics in advance, maintaining an updated understanding of network conditions before critical events occur. By pre-processing monitoring data and maintaining optimization readiness, the controller can rapidly generate and transmit optimization data when needed, improving network performance while minimizing actual processing time during handover or routing events.
3Productivity
If dynamic management of carrier aggregation and backhaul routing is implemented, then network efficiency improves, but the device complexity increases
Solution Approach 1:
The RAN controller implements dynamic management of carrier aggregation and backhaul routing by continuously adapting its control decisions based on real-time monitoring data. The controller can modify carrier aggregation configurations, adjust backhaul routing paths, and reoptimize network parameters dynamically in response to changing network conditions, traffic patterns, and resource availability. This dynamic approach improves network efficiency while the centralized controller manages the complexity of coordinating these multiple dynamic parameters.
Data Source
AI summary
The disclosed technology is generally directed towards optimization and control of wireless networks based on monitoring and/or analytics data received at a radio access network (RAN) controller device in a split RAN protocol architecture. The RAN controller device processes the monitoring/analytics data and provides control information and/or optimization data, which can be policy data, to a central unit device that can configure the wireless network based on the control information and/or optimization data. The technology can facilitate optimization and configuration of mobility procedures including handovers and secondary cell group changes, optimization of carrier aggregation and dual connectivity procedures based on multiple metrics, and can facilitate centralized optimization of topology and route selection for integrated access and backhaul nodes.