Central Unit Configuring Distributed Units via Throughput Estimation
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Solution Overview
Problem
Current wireless access points using the CU/DU architecture fail to effectively configure themselves based on unique DU mounting locations and baseband distribution, leading to inefficient performance in at-home or similar installations.
Innovation Solution
A wireless communication system where Distributed Units (DUs) receive test data from access points and transfer it to a Central Unit (CU), which estimates data throughputs for DU and access point combinations based on the test data, allowing the CU to select optimal configurations for user data exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If DUs are mounted on exterior walls, roofs, or towers at different locations, then wireless coverage and signal quality vary across different mounting positions, but determining the optimal mounting location and configuration becomes complex and time-consuming
Solution Approach 1:
The system performs preliminary testing by having DUs transmit test signals to the CU before actual operation. The CU measures signal quality metrics (RSRP, SINR, throughput) for each DU and pre-determines the optimal DU-to-AP mapping configuration based on these measurements, avoiding the need for complex manual configuration after installation.
Solution Approach 2:
The system automatically configures itself by having the CU autonomously measure signal quality from each DU, estimate throughputs, and determine the optimal configuration without external intervention. The configuration is self-optimized based on actual radio conditions, eliminating the need for manual site surveys and configuration by technicians.
2Measurement precision
If the system manually configures each DU based on mounting location, then configuration accuracy may be improved, but the time and resources required for configuration increase significantly
Solution Approach 1:
The system performs automatic self-configuration where the CU autonomously measures signal quality metrics from each DU, estimates data throughputs, and determines the optimal DU-to-AP mapping without manual intervention. This self-service approach achieves high configuration accuracy while minimizing the time and resources required, as the system configures itself based on actual radio conditions.
Solution Approach 2:
The system uses feedback from actual radio measurements (signal strength, quality, throughput) to automatically adjust and optimize the configuration. The CU receives feedback from DU transmissions and uses this information to dynamically determine the best configuration, ensuring accuracy while reducing manual configuration time.
3Adaptability or versatility
If test data is collected from all DUs to estimate throughput for each DU-AP combination, then configuration optimization is improved, but the signaling overhead and processing time increase
Solution Approach 1:
The system performs throughput estimation for all possible DU-AP combinations to ensure optimal configuration, even though not all combinations will be used in the final configuration. This exhaustive approach guarantees adaptability and versatility in finding the best configuration, accepting the temporary increase in signaling overhead during the configuration phase.
Data Source
AI summary
In a wireless communication system, Distributed Units (DUs) wirelessly receive test data from wireless access points and transfer the test data to a Central Unit (CU). The CU receives the test data from the DUs and estimates data throughputs for combinations of the DUs and the wireless access points based on the test data. The CU selects some of the combinations of the DUs and the wireless access points based on the estimated data throughputs. The CU exchanges user data with the user communication devices and exchanges the user data with the DUs in the selected combinations of the DUs and the wireless access points. The DUs in the selected combinations of the DUs and the wireless access points exchange the user data with the CU and wirelessly exchange the user data with the wireless access points in the selected combinations of the DUs and the wireless access points.