Communication Control Apparatus for Shared Radio Unit Band Allocation
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Solution Overview
Problem
In wireless communication systems, the capacity of baseband units (CU/DUs) and front haul (FH) lines is limited when shared radio units (RUs) are used by multiple mobile network operators (MNOs, as the capacity does not scale with the increased use band, restricting the expansion of system capacity.
Innovation Solution
A communication control apparatus allocates radio unit bands to MNOs based on an upper band use limit, optimizing band usage to maximize a fairness and throughput metric, ensuring the capacity of CU/DUs and FH lines does not exceed predetermined thresholds, thereby expanding system capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If shared RUs are used by multiple MNOs to expand communication areas and system capacity, then the radius of cell is reduced and base station density is increased, but the capacity of CU/DUs and FH lines does not scale with the increased use band, restricting system capacity expansion
Solution Approach 1:
The patent dynamically adjusts the use band allocation parameter for shared RUs based on the capacity status of CU/DUs and FH lines. When capacity is available, the use band is increased to improve system productivity; when capacity is reached, the use band is constrained to prevent overload. This parameter change approach resolves the contradiction by making system capacity scalable without proportionally increasing base station density.
2Adaptability or versatility
If the use band of shared RUs is increased to accommodate more MNOs, then more operators can share the infrastructure, but the capacity of CU/DUs and FH lines is exceeded, limiting further expansion
Solution Approach 1:
The patent implements a feedback mechanism where the communication control apparatus continuously monitors the capacity usage of CU/DUs and FH lines. Based on this feedback, it dynamically adjusts the use band allocation for shared RUs. When capacity headroom is available, the system allows more MNOs to share; when capacity thresholds are approached, the system constrains further band allocation. This feedback loop resolves the contradiction between adaptability and reliability.
3Ease of manufacture
If dedicated RUs are substituted with shared RUs, then infrastructure cost is reduced through sharing, but the capacity of each MNO's CU/DU and FH line does not follow the increase in use band
Solution Approach 1:
The patent introduces dynamic band allocation that adapts to the capacity status of shared infrastructure. Instead of static allocation, the system continuously adjusts the use band for each MNO based on real-time capacity monitoring of CU/DUs and FH lines. This dynamic approach enables infrastructure sharing while maintaining capacity scalability, as the system can flexibly allocate available capacity to different MNOs without requiring proportional increases in physical infrastructure.
Data Source
AI summary
A communication control apparatus allocates, to a plurality of operators, a band of each of a plurality of radio units that are shared by the operators and that are connected to a plurality of baseband units managed by the operators. The communication control apparatus includes: a memory; a processor that allocates the band of each of the radio units to the operators in accordance with an upper band use limit that is set for each of the radio units such that a use band used by the operators does not exceed the upper band use limit; and an output unit that outputs allocation information indicating the band allocated to the operators by the processor to each of the baseband units.