ANTENNA CALIBRATION METHOD AND SYSTEM

Title:

ANTENNA CALIBRATION METHOD AND SYSTEM

Document Type and Number:

WIPO Patent Application WO/2022/141165

Kind Code:

A1

Abstract:

Disclosed are an antenna calibration method and system, which are used in the technical field of communications. The system comprises: a baseband processing unit, a radio remote unit, an antenna array and a coupling antenna, wherein the antenna array is used for sending, to a wireless network, a radio frequency calibration signal sent by the baseband processing unit, or receiving the radio frequency calibration signal; the radio remote unit is used for providing a plurality of transmission channels, which correspond to a plurality of transmission ports; the coupling antenna is used for receiving, in the wireless network, the radio frequency calibration signal sent by the baseband processing unit, and transmitting a coupling signal corresponding to the radio frequency calibration signal to the baseband processing unit, or sending the radio frequency calibration signal to the wireless network; and the baseband processing unit is used for calibrating, according to the difference between the radio frequency calibration signal and the coupling signal, a plurality of baseband signals to be sent corresponding to the plurality of transmission channels.

Inventors:

YANG CHAOHUI (CN)
CHEN CONG (CN)
WANG LINLIN (CN)
XIAO WEIHONG (CN)

Application Number:

PCT/CN2020/141296

Publication Date:

July 07, 2022

Filing Date:

December 30, 2020

Export Citation:

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Assignee:

HUAWEI TECH CO LTD (CN)

International Classes:

H04B17/00; H04B7/04; H04W88/08

Domestic Patent References:

WO2018176201A1

2018-10-04

Foreign References:

CN102035611A	2011-04-27
CN103442441A	2013-12-11
CN103475395A	2013-12-25
CN106788798A	2017-05-31
CN211856883U	2020-11-03
US10707974B1	2020-07-07
US20040032366A1	2004-02-19

Other References: