MIMO Antenna Selection Apparatus for Signal Detection
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Solution Overview
Problem
Conventional Multiple Input Multiple Output (MIMO) systems face challenges in selecting the optimal receiving antennas for simultaneous signal streams due to high power consumption and complex hardware designs, which are inadequate for efficient signal detection.
Innovation Solution
A selecting apparatus comprising a selective and control unit, a signal processing module, and a determining unit that iteratively selects and processes receiving antennas to generate detection data, allowing for efficient antenna selection and simplifying hardware design by using a control signal to choose the best antenna set for signal detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple receiving antennas are used for simultaneous signal stream detection, then signal detection accuracy is improved, but power consumption and hardware complexity increase
Solution Approach 1:
The patent segments the antenna selection process into discrete sets where each set contains a specific combination of receiving antennas. The selective and control unit switches between these predefined sets rather than managing individual antennas independently, simplifying the hardware control structure while maintaining the ability to evaluate multiple antenna configurations for accurate signal detection.
Solution Approach 2:
The patent implements dynamic antenna set selection where the determining unit continuously evaluates detection data from different antenna sets and generates control signals to switch between sets based on current channel conditions. This dynamic adaptation allows the system to optimize signal detection accuracy while avoiding the complexity of static multi-antenna configurations.
2Measurement precision
If multiple receiving antennas are used for simultaneous signal stream detection, then signal detection accuracy is improved, but power consumption increases
Solution Approach 1:
The patent employs partial action by selecting only the optimal subset of antennas for each signal stream rather than activating all available antennas simultaneously. The selective and control unit switches between predefined antenna sets, enabling the system to use only the necessary number of antennas required for adequate signal detection, thereby reducing overall power consumption while maintaining detection accuracy.
Solution Approach 2:
The patent changes the operational parameter of antenna configuration by dynamically switching between different antenna sets based on detected signal conditions. The determining unit analyzes detection data and adjusts which antenna sets are active, effectively changing the system's energy consumption profile to match the actual signal detection requirements rather than maintaining constant high power usage.
3Measurement precision
If conventional antenna selection methods are used for multiple signal streams, then signal detection can be achieved, but the design becomes complicated
Solution Approach 1:
The patent creates a universal antenna selection framework where the selective and control unit, signal processing module, operation unit, and determining unit work together as an integrated multi-functional system. This universal architecture handles both single-stream and multi-stream scenarios through the same hardware structure, eliminating the need for separate complex designs for different signal stream configurations.
Solution Approach 2:
The patent introduces the determining unit as an intermediary that mediates between the signal processing module and the selective and control unit. This intermediary evaluates detection data from multiple antenna sets and generates appropriate control signals, simplifying the overall design by centralizing the decision-making logic rather than requiring complex direct control mechanisms between antennas and signal processors.
Data Source
AI summary
A selecting apparatus for receiving antennas of a Multiple Input Multiple Output wireless system and a method thereof are disclosed. The method for selecting antennas includes the following steps. Select a set of receiving antenna sequentially by a selective and control unit so as to receive an input data. Then a signal processing module deals with the input data to generate output data sets. An operation unit processes at least one of the multiple sets of output data for generating a detection data that is sent to a determining unit. According to the detection data, the determining unit generates a control signal that is sent to the selective and control unit for driving the selective and control unit to select a set of antenna to be used.