Multi-Antenna Subsystem for Software Defined Radio Adaptability
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Solution Overview
Problem
Conventional single-antenna SDR systems do not support multi-antenna technologies, lacking the necessary hardware and algorithms to adapt to rapidly evolving telecommunication environments.
Innovation Solution
A multi-antenna subsystem is introduced for SDR systems, comprising an RF/IF subsystem, a modem subsystem, and a multi-antenna subsystem with algorithm executing, synchronization, and control units to enable support for multi-antenna technologies without hardware changes, utilizing open architecture and various functional blocks for algorithm execution and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional single antenna system is used, then the hardware structure is simple, but the system cannot support multi-antenna technologies and lacks adaptability to evolving telecommunication environments
Solution Approach 1:
The system is divided into distinct functional modules: RF/IF subsystem, modem subsystem, and multi-antenna subsystem. Each module handles specific tasks (signal reception, data processing, and multi-antenna algorithm execution), allowing the system to support multi-antenna technologies through modular addition rather than complete redesign.
Solution Approach 2:
The multi-antenna subsystem is designed with universal functionality to support various multi-antenna algorithms (beamforming, spatial multiplexing, space-time coding) and can be integrated with existing RF/IF and modem subsystems. This universal design enables the system to adapt to different telecommunication standards and multi-antenna configurations without requiring complete hardware changes.
2Adaptability or versatility
If multiple single antenna systems are provided to support multi-antenna functionality, then the hardware quantity increases, but the system still lacks integrated control and synchronization mechanisms
Solution Approach 1:
Multiple antenna functions are merged into a single integrated multi-antenna subsystem that includes algorithm execution units, synchronization units, and control units. This consolidation reduces the number of separate systems needed while providing integrated control and synchronization mechanisms for multi-antenna operations.
Solution Approach 2:
The multi-antenna subsystem acts as an intermediary layer between the RF/IF subsystem and modem subsystem, providing specialized multi-antenna processing functions. This intermediary structure coordinates multiple antenna operations through centralized control units and synchronization mechanisms, avoiding the need for multiple independent single-antenna systems.
3Adaptability or versatility
If multi-antenna algorithms are added to the SDR system, then the functionality is enhanced, but the system requires additional control units and synchronization mechanisms
Solution Approach 1:
The control structure is segmented into specialized units: algorithm execution units for running multi-antenna algorithms, synchronization units for coordinating antenna operations, and control units for overall system management. This segmentation allows each unit to handle specific tasks efficiently, reducing the complexity burden that would result from a monolithic control structure.
Data Source
AI summary
The present invention relates to a multi-antenna subsystem for a SDR (software defined radio) capable of supporting a multi-antenna technique to an antenna system using a multi-antenna subsystem. The multi-antenna subsystem of a multi-antenna system includes an algorithm executing unit for carrying out an algorithm for a multi-antenna technique to be required in the multi-antenna system, a frame synchronization unit for a synchronization acquisition, and a control unit for controlling the algorithm executing unit and the frame synchronization. The algorithm executing unit has a plurality of functional blocks and the functional block has state information, which can be referred by other functional blocks, for supporting SDR system.