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Codebook design method for three-dimensional (3D) antenna configuration

A technology of antenna configuration and design method, applied in diversity/multi-antenna system, radio transmission system, space transmit diversity and other directions, can solve the problem of no 3D antenna, etc., and achieve the effect of good compatibility and simple design

Active Publication Date: 2013-02-20
ALCATEL LUCENT SHANGHAI BELL CO LTD
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AI Technical Summary

Problems solved by technology

The existing standard Rel-10 has a codebook for 2D antenna configuration, but there is no codebook design for 3D antenna configuration

Method used

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  • Codebook design method for three-dimensional (3D) antenna configuration
  • Codebook design method for three-dimensional (3D) antenna configuration
  • Codebook design method for three-dimensional (3D) antenna configuration

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Embodiment Construction

[0027] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] A rectangular antenna array is a typical 3D antenna configuration, and the method according to the present invention will be explained in conjunction with the rectangular antenna array in the following description.

[0029] For a geographically distributed rectangular antenna array, each row of antenna arrays has a similar spatial orientation, and each column of antenna arrays also has a similar spatial orientation. This means that for each row / column of antenna arrays, the same codeword can be used to quantize the corresponding horizontal / vertical channel state information. The horizontal codebook represents the row antenna array, and the vertical codebook represents the column antenna array. The horizontal codebook can be a newly designed codebook or a codebook composed of all or part of the codewords of the existing Rel-10 codebook, b...

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Abstract

The invention relates to a codebook design method for 3D antenna configuration. The method includes the steps of selecting a first code word representing a first antenna array in the 3D antenna configuration from a first codebook, selecting a second code word representing a second antenna array in the 3D antenna configuration from a second codebook, and multiplying the first code word and the second code word to obtain a corresponding code word applied to a codebook for the 3D antenna configuration. The method has the advantages that the design is simple, the existing LTE Re1-10 codebook can be used, and compatability is good.

Description

technical field [0001] The present invention relates to wireless communication, more specifically, to a codebook design method for 3D antenna configuration in wireless communication. Background technique [0002] The current LTE-A standard defines 2D channel modeling and 2D antenna configuration, which means that only the horizontal azimuths of departure and arrival are considered, and the angles in the vertical direction are not considered. [0003] Now 3D antenna modeling is getting more and more attention, because 3D antenna modeling can further introduce additional gain in the vertical direction on the basis of the gain in the horizontal direction. In 3D channel modeling, a configuration of 3D antennas is required to provide horizontal coverage as well as vertical coverage. A typical application of a 3D antenna configuration is to cover an urban environment with dense buildings. [0004] In the frequency division duplexing (Frequency Division Duplexing: FDD) system, th...

Claims

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Application Information

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IPC IPC(8): H04B7/06
CPCH04B7/06H04L25/0391H04L25/03923H04B7/0469H04B7/0639H04B7/0617H04B7/0602
Inventor 武露杨红卫
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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