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An antenna calibration method, antenna calibration device and base station for an fdd system

A correction method and antenna technology, applied in the field of communication, can solve problems such as uplink antenna correction signal interference, and achieve the effects of avoiding interference, improving accuracy, and improving performance

Active Publication Date: 2022-03-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide an antenna calibration method, an antenna calibration device, and a base station for an FDD system, which solves the problem that the user's uplink signal will interfere with the uplink antenna calibration signal when the FDD system performs antenna calibration

Method used

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  • An antenna calibration method, antenna calibration device and base station for an fdd system
  • An antenna calibration method, antenna calibration device and base station for an fdd system
  • An antenna calibration method, antenna calibration device and base station for an fdd system

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Embodiment 1

[0027] like figure 1 As shown, an embodiment of the present invention provides an antenna calibration method for an FDD system, including the following steps:

[0028] Step S101, the base station creates a virtual user, and configures an uplink sounding reference signal SRS period for the virtual user;

[0029] Step S102, the base station transmits the pre-acquired uplink antenna correction sequence data to the receiving antenna of the base station according to the SRS period;

[0030] Step S103, the base station uses the receiving antenna to perform uplink antenna correction according to the correction sequence data received by the uplink antenna correction sequence data.

[0031] Among them, the base station refers to a large-scale base station with antennas using the FDD system, because such base stations are generally deployed in large stadiums, concerts, commercial centers, transportation hubs and other areas with high user density. There is a large demand for data tran...

Embodiment 2

[0036] like figure 2 As shown, an embodiment of the present invention provides another antenna calibration method for an FDD system, including:

[0037] Step S201, the base station creates a virtual user, and configures an uplink sounding reference signal SRS period for the virtual user;

[0038] Step S202, the base station transmits the pre-acquired uplink antenna correction sequence data to the receiving antenna of the base station according to the SRS period;

[0039] Step S203, the base station uses the receiving antenna to perform uplink antenna correction according to the correction sequence data received by the uplink antenna correction sequence data;

[0040] Step S204, the base station deletes the virtual user.

[0041] In the embodiment of the present invention, after all antenna calibration steps are completed, the set virtual user is deleted, which can release the resources occupied by the virtual user, and can further optimize the processing capability of the b...

Embodiment 3

[0058] like image 3 shown, image 3 This is a schematic structural diagram of an antenna calibration device provided by an embodiment of the present invention. The figure may include an antenna calibration management module 301, a timing control module 302, an uplink calibration sequence sending module 303, a receiving antenna 305, an uplink radio frequency module 306, and an uplink intermediate frequency module. 307 and the uplink baseband module 308.

[0059] The antenna calibration management module 301 can create a virtual user according to the uplink antenna calibration requirement, configure the SRS cycle for the virtual user, determine the uplink antenna processing time according to the SRS cycle of the virtual user, and set the uplink antenna calibration within the uplink antenna calibration processing time. processing time, and notify the timing control module 302 of the uplink antenna correction processing time, while the antenna correction management module 301 no...

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Abstract

The present invention provides an antenna calibration method, an antenna calibration device and a base station for an FDD system, and relates to the field of communication technologies, including: the base station creates a virtual user, and configures an uplink sounding reference signal SRS period for the virtual user; The SRS periodically transmits the pre-acquired uplink antenna correction sequence data to the receiving antenna of the base station; the base station uses the receiving antenna to perform uplink antenna correction according to the correction sequence data received by the uplink antenna correction sequence data. The embodiments of the present invention can avoid the interference of the user uplink signal to the uplink antenna correction signal, improve the accuracy of the antenna correction, and thus improve the performance of the antenna correction.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to an antenna calibration method, an antenna calibration device and a base station for a Frequency Division Duplexing (Frequency Division Duplexing, FDD) system. Background technique [0002] With the continuous development of mobile communication technology, the fifth generation (5th-Generation, 5G) mobile communication technology has also made a major breakthrough. Specifically, deploying large-scale antenna array systems in areas with high user density such as large stadiums, concerts, commercial centers, and transportation hubs, the use of Massive Multiple-Input Multiple-Output (Massive MIMO) technology can effectively Improve data service transmission rate. In the actual large-scale antenna array system, there are certain errors in each radio frequency channel, and the core algorithm of the smart antenna requires accurate knowledge of the array manifold. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/12H04W24/02H04L5/00
CPCH04B17/12H04W24/02H04L5/0048
Inventor 陆海涛
Owner ZTE CORP