vDU Load Balancing Through Dynamic Radio Unit Reassignment
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Solution Overview
Problem
Existing radio access networks face challenges in efficiently managing resources across base stations due to varying communication demands, with high-speed and high-capacity services requiring more resources than low-speed and low-capacity services, leading to imbalances in resource allocation.
Innovation Solution
A management apparatus and method that includes a monitoring unit to acquire load states of virtual Distributed Units (vDUs) and a control unit to reconfigure Radio Units (RUs) between vDUs based on load states, transferring RUs from heavily loaded vDUs to less loaded vDUs within the same subscriber exchange station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If resources are allocated to base stations based on communication demand, then high-speed and high-capacity services can be supported, but resource imbalance occurs between base stations with different load states
Solution Approach 1:
The patent implements dynamic resource allocation by enabling RUs to be reassigned between vDUs based on real-time load states. The management apparatus monitors load conditions and dynamically reconfigures RU connections, allowing the system to adapt resource distribution to changing communication demands and balance loads across base stations
Solution Approach 2:
The system changes the connection parameter of RUs from static assignment to dynamic reassignment. By modifying which vDU each RU connects to based on load state parameters, the system optimizes resource allocation while maintaining support for high-speed services
2Ease of operation
If RUs are reassigned to balance load between vDUs, then resource usage is leveled, but connection complexity increases
Solution Approach 1:
The management apparatus automatically monitors load states and performs RU reassignment without manual intervention. The system self-manages the complexity of connection reconfiguration by implementing automated decision-making based on load state thresholds, reducing operational burden while achieving load balance
Data Source
AI summary
A management apparatus in a radio access network including RUs (Radio Units) and vDUs (virtual Distributed Units), the management apparatus comprising: a monitoring unit configured to acquire load states of the respective vDUs; and a control unit configured to determine, among the vDUs, based on the load states that have been acquired, a first vDU in which a load should be lowered and a second vDU for receiving part of the load from the first vDU, to determine, among RUs connected to the first vDU, an RU for which a connection destination is to be changed to the second vDU, and to change the connection destination of the determined RU from the first vDU to the second vDU.