Centralized Base Station Management for Next-Gen Mobile Coverage
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Solution Overview
Problem
Next-generation mobile communication systems face challenges in securing coverage and enhancing data transmission rates using medium and ultra-high frequencies, as higher frequency bands lead to reduced signal strength and difficulty in spatial multiplexing due to increased linearity of electromagnetic waves, limiting the service to line-of-sight regions.
Innovation Solution
A system comprising a centralized base station and multiple remote base stations, connected through a remote interlocking element, which performs beamforming and resource allocation using integrated beamforming codebooks, and transmits control and data signals over optical wavelengths, allowing for aggregated data flow management and extended coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If medium frequency and ultra high frequency are used to increase bandwidth, then data transmission rate is enhanced, but coverage is difficult to secure due to reduced signal strength
Solution Approach 1:
The system divides the base station into a centralized base station and multiple remote base stations. Each remote base station is positioned at different locations to provide coverage in specific regions, allowing the system to maintain high data transmission rates while extending overall coverage area through spatial segmentation of transmission functions
Solution Approach 2:
The patent transitions from traditional two-dimensional coverage to three-dimensional coverage by utilizing vertical deployment of remote base stations at different heights and locations. This dimensional expansion allows signal propagation to reach NLOS regions through reflected and diffracted waves, thereby securing coverage while maintaining high-frequency data transmission
2Productivity
If the number of antennas is increased to enhance data rate through spatial multiplexing, then data transmission capability is improved, but spatial multiplexing becomes difficult due to increased linearity of electromagnetic wave
Solution Approach 1:
The system segments the spatial multiplexing function across multiple remote base stations rather than concentrating all antennas at one location. Each remote base station performs beamforming with its antenna array, and the centralized base station coordinates resource allocation across all segments, enabling spatial multiplexing to function effectively despite the linearly propagating electromagnetic waves at high frequencies
Solution Approach 2:
The centralized base station acts as an intermediary that coordinates beamforming and resource allocation across multiple remote base stations. It processes channel information from each remote base station and generates coordinated beamforming signals, enabling spatial multiplexing functionality to be maintained across the distributed antenna system even when direct spatial multiplexing at individual remote stations is limited by electromagnetic wave linearity
Data Source
AI summary
A system for managing a base station in a next generation mobile communication service includes a plurality of remote base stations configured to provide data transmission to a plurality of user terminals in a next generation mobile communication system; a centralized base station configured to perform interlocking among the plurality of remote base stations and perform resource allocation and scheduling for each user terminal; and a remote interlocking element configured to transmit corresponding control and data information to the plurality of remote base stations according to beamforming information and resource allocation information allocated by the centralized base station, and transmit channel information of a user terminal, which is received from the plurality of remote base stations, to the centralized base station.