Integrated 5G Massive MIMO Radio Unit Without Cabling
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Solution Overview
Problem
Existing massive MIMO radio units are expensive, power-hungry, thermally inefficient, and bulky, requiring complex cabling and separate components, which complicates design and installation.
Innovation Solution
A 5G NR integrated massive MIMO radio unit (IMRU) combines baseband and RF front end with an integrated antenna and cavity filter, eliminating cables and integrating components into a compact, lightweight design with low power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate components with cabling are used, then interoperability and modularity are improved, but device complexity and installation complexity increase
Solution Approach 1:
The patent integrates the antenna unit and cavity filter unit into a single unified structure, eliminating the need for separate components and cabling. This merging reduces design complexity while maintaining interoperability through standardized interfaces within the integrated unit.
2Adaptability or versatility
If separate components with cabling are used, then modularity is improved, but ease of operation and installation are worsened
Solution Approach 1:
By combining the antenna and cavity filter into one integrated unit, the patent eliminates complex cabling requirements and reduces the number of connection points, thereby significantly easing installation while preserving modular functionality through the self-contained design.
3Device complexity
If integrated design is used, then device complexity is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The integration of antenna and cavity filter units is achieved through standardized mounting interfaces and modular sub-assemblies that reduce the precision requirements compared to fully custom integrated designs, while still achieving the benefits of reduced overall system complexity.
4Ease of operation
If compact design is used, then ease of operation is improved, but thermal management challenges increase
Solution Approach 1:
The patent addresses thermal management in the compact integrated design by utilizing three-dimensional heat dissipation paths and strategic placement of heat-generating components, allowing effective thermal management within the reduced form factor.
Data Source
AI summary
The present disclosure relates to an open radio access network (ORAN) compliant 5G massive integrated multiple-input multiple-output (MIMO) radio unit (IMRU) where a High-Speed Transceiver Board (HSTB) and Radio Frequency (RF) Front End Module (RFEM) are integrated into a single board to reduce the weight and optimize the cost by eliminating the need of blind mating connectors. The IMRU is connected to a Combined Central and Distributed Unit (CCDU) on a fronthaul interface using 25G optical interface. Further, the IMRU is integrated with an Antenna Filter Unit (AFU) and covered in single enclosure for easy and efficient installation that ensures advanced beam forming while ensuring low weight and compact form factor to enable easy installation.