Wireless Base Station CU-CU-U Split Configuration Management

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Solution Overview

Problem

Current wireless base station technologies face challenges in efficiently managing multiple split points of signal processing, particularly in 5G networks, where the separation of signal processing functions between the Center Unit (CU) and Distributed Unit (DU) into CU-C and CU-U components is complex, leading to difficulties in configuring and managing signal processing configurations across different split points.

Innovation Solution

A wireless base station architecture that includes a wireless apparatus for first signal processing, a first wireless control apparatus for user plane processing, and a second wireless control apparatus for control plane processing, allowing for flexible configuration and management of signal processing splits through bidirectional signal transfer using WDM and other methods like CPRI or OBSAI, enabling various split points and configurations for efficient communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If signal processing functions are separated into CU-C and CU-U components in 5G networks, then communication efficiency and adaptability are improved, but device complexity and configuration difficulty increase

Engineering Contradiction:
Improvecommunication efficiencyVSAvoidconfiguration complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the base station signal processing functions into distinct components: CU-C (Control Plane) and CU-U (User Plane). This segmentation allows independent configuration and management of control and user data paths, improving communication efficiency while enabling modular configuration that reduces overall system complexity despite the functional separation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a configuration management mechanism that acts as an intermediary between the separated CU-C and CU-U components. This intermediary coordinates the configuration processes, manages the relationships between split points, and simplifies the overall configuration complexity by providing a unified interface for managing the segmented functions.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If multiple split points of signal processing are supported, then adaptability and flexibility are improved, but ease of operation and management deteriorate

Engineering Contradiction:
Improveconfiguration flexibilityVSAvoidmanagement ease
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent implements dynamic configuration capabilities that allow the base station to adaptively adjust signal processing split points based on network conditions and requirements. The system can dynamically select among multiple split point configurations (e.g., Option 2, Option 6, Option 7) without requiring manual reconfiguration, thereby maintaining ease of operation while providing high adaptability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent creates a universal configuration management mechanism that handles multiple types of signal processing splits through a unified interface. This multi-functional approach allows the same management system to handle different split point options, various function separation scenarios, and multiple configuration modes, simplifying operations while maintaining versatility.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS10893459B2Wireless base station, first wireless control apparatus, second wireless control apparatus, and wireless apparatus
Publication Date: 2021.01.12 1FINITY INC
  • US10893459B2 patent drawing
  • US10893459B2 patent drawing
  • US10893459B2 patent drawing

AI summary

A wireless base station for wireless communication includes: a wireless apparatus configured to perform first signal processing that is a part of signal processing in the wireless communication; a first wireless control apparatus configured to perform a user plane (U-plane) processing of the wireless communication; and a second wireless control apparatus configured to perform a control plane (C-plane) processing of the wireless communication.