Smart antenna array simulation method and system

A smart antenna and antenna array technology, applied in diversity/multi-antenna systems, radio transmission systems, transmission systems, etc., can solve problems such as lack of simulation technology

Active Publication Date: 2016-12-07
NANTONG JINGYU MACHINE
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, although smart antennas have a large number of applications in 3G communication systems such as TD-SCDMA system and Long Term Evolution (LTE, Long Term Evolution) system, there is still a lack of good simulation technology in system modeling and analysis

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  • Smart antenna array simulation method and system
  • Smart antenna array simulation method and system

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Embodiment Construction

[0061] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by citing the following embodiments and referring to the accompanying drawings.

[0062] In a real wireless multi-antenna communication system, the impulse response of the wireless channel between antennas is a complex time-varying function, which is affected by various factors such as antenna type, antenna angle, antenna surrounding environment, and scatterer distribution. The present invention is described by taking the TD-SCDMA system as an example. It should be noted that the technical solution of the present invention is applicable to any communication system with a strong correlation smart antenna array. The TD-SCDMA system uses smart antennas. When it is deployed, a group of adaptive antenna arrays are installed on the same rack. Its characteristic is that there is a strong correlation between the antennas. The ...

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Abstract

The invention discloses a smart antenna array simulation method, comprising: setting a correlation matrix for the smart antenna array; wherein, the elements in the i-th row and the j-th column identify the degree of correlation between the i-th antenna and the j-th antenna; Perform Kronecker product operation on the correlation matrix of the smart antenna array and the antenna correlation matrix of the UE to obtain the total correlation matrix; perform Cholesky decomposition on the total correlation matrix to obtain the upper triangular matrix; according to the upper triangular matrix and the multipath fading coefficient of the smart antenna array Obtain the multipath fading coefficient on each antenna in the smart antenna array, after multiplying the multipath fading coefficient on each antenna by the power coefficient, obtain the impulse response sequence of the channel between the antennas; The impulse response is convolved with the signal to be sent as the received signal. The invention also discloses a system for realizing the above method. The invention achieves the perfect combination of complexity and simulation approximation.

Description

technical field [0001] The invention relates to a smart antenna array simulation technology, in particular to a smart antenna array simulation method and system with strong correlation. Background technique [0002] Smart antenna array technology is a key technology applied in the third generation (3G, 3rd Generation), B3G (Beyond 3G) mobile communication systems, such as Time Division Synchronous Code Division Multiple Access (TD-SCDMA, TimeDivision-Synchronous Code Division Multiple Access ) system and Long Term Evolution (LTE, Long Term Evolution) system. Using smart antenna array technology can greatly improve signal transmission efficiency [0003] Taking Time Division-Synchronous Code Division Multiple Access (TD-SCDMA, Time Division-Synchronous Code Division Multiple Access) system as an example, its smart antenna is an antenna array composed of 8 or 6 antennas, and tracks the signal arrival of the mobile station through uplink angle to perform beamforming on the do...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/08G06F17/50
CPCH04B7/0848
Inventor 朱昀
Owner NANTONG JINGYU MACHINE
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