Radio Base Station Parameter Management for CU-DU Coordination
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Solution Overview
Problem
In radio base stations with a central unit (CU) and distributed unit (DU) configuration, managing parameters for user devices and resource allocation becomes difficult due to lack of coordination between the CU and DU, particularly with parameters like Measurement Gap and Discontinuous Reception (DRX), which hinders efficient radio communication.
Innovation Solution
Implementing a parameter managing unit that ensures coordination necessary parameters are held in only one of the CU or DU, allowing for synchronized management and resource allocation, thereby facilitating easier coordination and efficient communication control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If parameters are managed individually and discretely in the CU and DU, then device complexity is reduced and ease of operation is improved, but coordination between parameters becomes difficult
Solution Approach 1:
The patent introduces a parameter management unit as an intermediary component that mediates between the CU and DU. This unit holds coordination necessary parameters and manages the parameter sets, enabling coordinated parameter management without requiring complex direct coordination mechanisms between CU and DU. The intermediary resolves the contradiction by providing a centralized management point that simplifies operations while maintaining coordination capability.
2Ease of operation
If coordination necessary parameters are distributed between CU and DU, then ease of operation is improved, but loss of information increases due to coordination difficulties
Solution Approach 1:
The parameter management unit performs preliminary action by pre-holding coordination necessary parameters before they are needed for parameter set configuration. By having these parameters prepared and managed in advance in a centralized location, the system ensures that all necessary coordination information is available when configuring parameter sets, preventing information loss while maintaining operational ease.
3Reliability
If parameters are managed in a centralized location, then coordination between parameters is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing parameter management into two distinct parts: coordination necessary parameters are held centrally in the parameter management unit for reliable coordination, while other parameters are managed locally in the CU and DU. This segmentation allows centralized coordination for critical parameters without requiring complete centralization of all parameters, thus maintaining reliability while limiting the increase in device complexity to only the necessary centralized management functions.
Data Source
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AI summary
A central unit (210) holds a plurality of parameters for controlling radio communication. A distributed unit (260) also holds a plurality of parameters for controlling the radio communication. A radio base station manages the parameters to be held by the central unit (210) and the distributed unit (260) . The radio base station causes a coordination necessary parameter, which is a parameter for which a coordination is necessary between the plurality of the parameters, to be held in only one of the central unit (210) and the distributed unit (260) .