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A joint storage method for 3d-mimo antenna polarization gain

A 3D-MIMO and joint storage technology, applied in the calculation of 3D antenna polarization gain and 3D channel estimation

Inactive Publication Date: 2017-06-23
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

Therefore, the antennas can be divided into two types: those with a vertical inclination angle of γ and those with a vertical inclination angle of -γ. The polarization gain of the same type of antennas has many common characteristics, but few literatures currently utilize this characteristic

Method used

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  • A joint storage method for 3d-mimo antenna polarization gain
  • A joint storage method for 3d-mimo antenna polarization gain
  • A joint storage method for 3d-mimo antenna polarization gain

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specific Embodiment approach

[0052] The 32 antennas used at the transmitter this time are: two half-wave dipole antennas with a vertical inclination angle of 45° and a vertical inclination angle of -45° are an antenna unit group, consisting of a total of 16 antenna unit groups A uniform planar antenna array, the spacing between antenna elements is half a wavelength; the 56 antennas used by the user receiving end are: two half-wave pairs with a vertical inclination angle of 45° and a vertical inclination angle of -45° The pole antenna is an antenna unit group, which is a uniform spherical antenna array composed of 28 antenna unit groups in total, and the distance between the antenna unit groups is half a wavelength.

[0053] Step 1. Classify all antennas: the first category is antennas with a vertical tilt angle of 45°, and the second category is antennas with a vertical tilt angle of -45°; therefore, each antenna unit group contains two antennas: One is the first type antenna, and the other is the second ...

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Abstract

The invention belongs to the technical field of wireless communication, and in particular relates to calculation of 3D antenna polarization gain and 3D channel estimation technology. According to the common characteristics of half-wave dipole antennas, the present invention invents a method for jointly storing planned gains, which classifies and simplifies the stored data of the three-dimensional polarization gains of the antenna system in 3D-MIMO, which not only saves a lot of The storage space solves the storage problem of the huge three-dimensional polarization gain data, and can speed up the calculation of the three-dimensional polarization gain when the beam leaves or arrives at the antenna, and also reduces the dynamic data that needs to be updated when the antenna adjusts its attitude. It is beneficial to the implementation of antenna alignment technology.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to calculation of 3D antenna polarization gain and 3D channel estimation technology. Background technique [0002] With the development of wireless communication, Multiple Input Multiple Output (MIMO) technology has been studied more and more deeply. Due to the multipath characteristics of wireless channels, MIMO technology can be used without changing the transmission power and bandwidth. Compared with the single-antenna system, the capacity is greatly improved. Therefore, MIMO has become a key application technology of many antenna communication systems, such as the fourth-generation wireless communication technology LTE (3GPP Long Term Evolution). [0003] The MIMO technology involved in the previous wireless communication technology refers to the two-dimensional multiple input multiple output (Two-Dimensional Multiple Input and Multiple Output System, ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 罗辑张驰孙韬罗配良张忠培
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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