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Method for forming MIMO array by using intelligent antenna array

A technology of smart antenna and array, applied in the field of communication, can solve the problems of no antenna array, high cost, waste of smart antenna array resources, etc., and achieve the effect of reducing implementation cost

Active Publication Date: 2006-12-13
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology

[0008] The purpose of the present invention is to provide a method of using a smart antenna array to form a MIMO array, so as to solve the problem that the MIMO technology and the smart antenna technology have different requirements on the antenna spacing in the prior art, so that there is currently no smart antenna that can be applied at the same time. Technology and antenna arrays of MIMO technology, if repurchasing antenna arrays that meet the requirements of MIMO technology will result in high cost of high-speed data transmission and technical problems of waste of smart antenna array resources

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  • Method for forming MIMO array by using intelligent antenna array

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] The correlation between the antennas is related to the distance between the antennas and the channel environment. Theoretical analysis shows that: for a fixed channel environment, the relationship between the correlation between MIMO antenna elements and the distance between antenna elements is similar to the change relationship determined by the Sinc function, that is, in the local area where the distance between antenna elements is small, each The larger the distance between the antenna units, the smaller the correlation between the antennas, and the greater the MIMO channel capacity; but when the distance between the antenna units increases to a certain extent, the correlation between the antennas is already very small. The size fluctuates, and the range of fluctuations is very small. At this time, increasing the distance between the antenna units has littl...

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Abstract

The invention discloses a MIMO array constituent method, which is characterized by the following: utilizing antenna with little correlation to select N antenna unit from intelligent antenna array to form MIMO array; or distributing intelligent antenna array into MIMO array through correlation elementary of each group; making antenna array support MIMO technology to transmit data at high speed; improving resource utility efficiency of intelligent antenna array.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for forming a MIMO (multiple-input multiple-output) array by using a smart antenna array and a method for high-speed data transmission by using the smart antenna array. Background technique [0002] Smart antenna technology is one of the key technologies of TD-SCDMA (Time Division Duplex Synchronous Code Division Multiple Access) system. Judging from the current research status, the smart antenna technology is relatively mature. After the TD-SCDMA system is commercialized, most base stations use smart antenna arrays for data transmission. [0003] With the development of MIMO technology, multiple transmit antennas and multiple receive antennas can be used to transmit high-speed data in a wireless communication system. Since the MIMO technology brings high-speed data transmission, the use of the MIMO technology for data transmission by the base station will become the direction...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/04H04B7/06H04B7/08
Inventor 索士强吴群英熊卫明王映民
Owner DATANG MOBILE COMM EQUIP CO LTD
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