Horizontal and vertical combined calibration method and device for active antenna array

A technology of active antenna and calibration method, which is applied in transmitter monitoring, receiver monitoring, etc., can solve problems such as inaccurate calibration, and achieve improved system capacity and coverage, high calibration accuracy, high data consistency and signal Effect of Noise Ratio Gain

Inactive Publication Date: 2016-07-27
ALCATEL LUCENT SHANGHAI BELL CO LTD
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AI Technical Summary

Problems solved by technology

[0004] The existing AAA (Active Antenna Array, Active Antenna Array) equipment is mainly concerned with either horizontal or vertical directions, FD-MIMO (single user-multiple input multiple output or multi-user-multiple input multiple output) and in 2D channel Beamforming calibration for sectorized cells under the model, but not accurate under the 3D channel model

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  • Horizontal and vertical combined calibration method and device for active antenna array
  • Horizontal and vertical combined calibration method and device for active antenna array
  • Horizontal and vertical combined calibration method and device for active antenna array

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Embodiment Construction

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

[0027] figure 1 It is a flow chart of the horizontal and vertical joint calibration method of the active antenna array according to an embodiment of the present invention.

[0028] Such as figure 1 As shown in , the data viewing method described in this embodiment includes the following steps:

[0029] S100. Separately extract sending data and receiving data at the same time for each column of antennas in the active antenna array.

[0030] S110. Calibrate the sending data and the receiving data respectively by using a calibration signal (a predefined known reference signal).

[0031] S120. Send the calibrated sending data and simultaneously receive the calibrated receiving data.

[0032] Each step is further described in detail below.

[0033] In step S100, for each column of antennas in the active antenna array, transmit data and receive data at the sam...

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Abstract

The invention provides a horizontal and vertical combined calibration method and device for an active antenna array, and the method comprises the steps: respectively extracting transmitted data and received data of antennas in all columns of the active antenna array at the same moment; carrying out the calibration of the transmitted data and received data through a calibration signal; transmitting the calibrated transmitted data and receiving the calibrated received data at the same time. The method can carry out the calibration of the transmitted data and the received data at the same time, respectively carries out the transmission and receiving of the transmitted data and the received data, achieves the real-time dynamic calibration of the transmitted data and the received data, is higher in calibration precision, can obtain higher data consistency and signal to noise ratio, and further enlarges the capacity of a system and the coverage.

Description

technical field [0001] The present invention relates to the field of active antenna array (AAA) calibration, in particular to the horizontal and vertical joint calibration of active antenna arrays under a LTE3D channel model (the model is defined in 3GPP standard TR36.873, but not limited to this channel model) Methods and devices. Background technique [0002] In the existing smart multi-antenna technology, MIMO (Multiple-Input Multiple-Output) (spatial dimension) and beamforming (BF, Beamforming) (diversity technology) are used to eliminate and suppress interference between users, Improve cell coverage and improve system performance and spectrum efficiency. Beamforming, in particular, is a signal processing technology based on antenna arrays. It increases the array gain by adjusting the weight of each element, thereby improving the signal strength of the beamforming pointing direction. [0003] The wireless channel corresponding to beamforming is not symmetrical between ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/12H04B17/21
Inventor 何大中张鹏杰赵昆王俊张碧军
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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