4x4 MIMO RF Architecture for Multi-Band 5G Antenna Integration
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Solution Overview
Problem
Existing radio-frequency systems face challenges in integrating multiple frequency bands and antenna configurations, leading to increased costs and space occupation, particularly in supporting 5G MIMO functions.
Innovation Solution
A radio-frequency system with a 4*4 MIMO configuration, incorporating a radio-frequency transceiver, transceiving and MIMO receiving modules, and multiple antennas, along with switching and filtering units, to support 5G signals in various frequency bands, enabling efficient use of space and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a diversity reception device for supporting middle and high frequency bands of LTE signals is applied to a radio-frequency transceiving system to support a MIMO function of a 5G NR signal, then the MIMO function is supported, but the cost increases and the space occupied increases
Solution Approach 1:
The patent implements a unified radio-frequency system where the same hardware infrastructure (antennas, transceiver, switching modules) supports both LTE diversity reception and 5G NR MIMO functions across multiple frequency bands. The system uses four antennas that can be dynamically configured through switching modules to serve different communication standards and frequency bands, eliminating the need for separate dedicated hardware for each function and reducing overall system cost and complexity
2Adaptability or versatility
If a diversity reception device for supporting middle and high frequency bands of LTE signals is applied to a radio-frequency transceiving system to support a MIMO function of a 5G NR signal, then the MIMO function is supported, but the space occupied increases
Solution Approach 1:
The patent merges LTE diversity reception and 5G NR MIMO functions into a single integrated radio-frequency system. Four antennas are shared between LTE and 5G NR operations, with switching modules dynamically routing signals to appropriate processing paths. The same antenna array and baseband processing resources handle both standards, significantly reducing the space required compared to having separate dedicated hardware systems for each function
Solution Approach 2:
The system employs universal hardware components that can perform multiple functions: the four antennas serve both LTE diversity reception and 5G NR MIMO transmission/reception; the switching modules dynamically reconfigure the antenna connections to support different standards and frequency bands; and the baseband processor handles processing for both LTE and 5G NR signals, maximizing space efficiency through multi-functional design
3Adaptability or versatility
If multiple frequency bands and antenna configurations are integrated in existing radio-frequency systems, then the communication capability is enhanced, but the cost increases
Solution Approach 1:
The patent employs dynamic switching modules that can reconfigure antenna connections in real-time based on the required frequency band and communication standard. The system adapts its configuration dynamically - for example, switching between different antenna subsets for different 5G NR frequency bands (n1, n3, n7, n41) or between LTE and 5G NR modes - allowing a single hardware platform to support multiple frequency bands and standards without requiring separate dedicated hardware for each, thereby reducing overall system cost
Solution Approach 2:
The radio-frequency system uses universal components that can operate across multiple frequency bands and communication standards. The four antennas, switching modules, and baseband processor are designed to handle both LTE diversity reception and 5G NR MIMO functions across four different 5G NR frequency bands, eliminating the need for multiple separate systems and reducing total system cost despite the enhanced multi-band capability
Data Source
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AI summary
A radio-frequency system includes a radio-frequency transceiver (100), a first transceiving module (200), a receiving module (300), a first Multiple Input Multiple Output (MIMO) receiving module (400), a second MIMO receiving module (500), a first antenna (Ant1), a second antenna (Ant2), a third antenna (Ant3), and a fourth antenna (Ant4). The radio-frequency transceiver (100) is connected to the first antenna (Ant1) via the first transceiving module (200) to form a first MIMO receiving channel for 5G signals. The radio-frequency transceiver is connected to the second antenna (Ant2) via the receiving module (300) to form a second MIMO receiving channel for 5G signals. The radio-frequency transceiver (100) is connected to the third antenna (Ant3) via the first MIMO receiving module (400) to form a third MIMO receiving channel for 5G signals. The radio-frequency transceiver (100) is connected to the fourth antenna (Ant4) via the second MIMO receiving module (500) to form a fourth MIMO receiving channel for 5G signals.