Wireless RRU Installation via Node Manager and WiGig
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Solution Overview
Problem
Current small cell deployments in cellular networks face challenges due to the high cost and complexity of fiber optic installations, strict capacity requirements of CPRI interfaces, and the need for additional network components, which hinder mass deployment and increase operational expenses.
Innovation Solution
A Node Manager configured RRU system that enables wireless communication with a Central Management System using a web application server, allowing for out-of-band installation and provisioning, reducing the need for physical connectivity and enabling RRU clusters to be interconnected with a single fiber connection, utilizing WiGig technology for high-speed wireless links and lowering fronthaul data rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If CPRI interface is used for fronthaul data transport, then high data transmission capacity is achieved, but fiber optic installation cost and complexity increase significantly
Solution Approach 1:
The patent replaces the mechanical fiber optic installation system with a wireless communication system. Specifically, it substitutes the CPRI interface over fiber with a wireless fronthaul solution using radio frequency transmission, thereby eliminating the need for physical fiber optic trenching and installation while maintaining high data transmission capacity required for fronthaul data
Solution Approach 2:
The patent introduces a wireless communication intermediary (radio frequency transmission medium) between the Remote Radio Unit and the Baseband Unit, replacing the direct fiber optic connection. This intermediary enables data transmission without requiring physical fiber installation, thus resolving the contradiction between high capacity requirements and installation complexity
2Power
If dedicated dark fiber is installed for every RRU, then high data transmission capacity is achieved, but operational expenditure and total cost of ownership increase
Solution Approach 1:
The patent makes the wireless communication medium universal by allowing multiple RRUs to share the same wireless spectrum and transmission medium simultaneously, rather than requiring dedicated fiber for each RRU. This multi-functional use of the wireless medium reduces deployment costs while maintaining sufficient data transmission capacity for each RRU through frequency division or spatial multiplexing
Solution Approach 2:
The patent employs cost-effective wireless communication infrastructure instead of expensive dedicated fiber optic installations. The wireless solution uses readily available radio frequency spectrum and standard wireless communication equipment, significantly reducing the total cost of ownership compared to fiber optic deployment
3Ease of operation
If direct physical interface is used between installer's computer and RRU, then installation simplicity is maintained, but network security and remote management capability are reduced
Solution Approach 1:
The patent introduces a web server as an intermediary between the installer's computer and the RRU. The web server provides a secure, standardized interface for configuration and management, eliminating the need for direct physical connections while maintaining installation simplicity through web-based interfaces. This intermediary layer enhances network security by isolating the RRU from direct access while enabling remote management capabilities
4Area of stationary object
If fiber optic trenching is performed every 100-200 meters, then complete network coverage is achieved, but operational expenditure and installation time increase
Solution Approach 1:
The patent replaces the mechanical fiber optic trenching system with a wireless communication system that requires no physical ground infrastructure. This substitution eliminates the time-consuming trenching and cable laying processes while achieving the same network coverage area through radio frequency propagation, thereby resolving the contradiction between coverage area and installation time
Data Source
AI summary
There is provided a system and a method for installing a Remote Radio Unit. The system and method is for a network stranded remote radio installation.