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1. WO2020113927 - APPARATUS AND METHOD FOR SELF-ADAPTIVELY CANCELLING PASSIVE INTERMODULATION SIGNAL

Publication Number WO/2020/113927
Publication Date 11.06.2020
International Application No. PCT/CN2019/090976
International Filing Date 12.06.2019
IPC
H04B 1/40 2015.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
40Circuits
H04B 1/525 2015.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
40Circuits
50using different frequencies for the two directions of communication
52Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
525with means for reducing leakage of transmitter signal into the receiver
CPC
H04B 1/40
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
40Circuits
H04B 1/525
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
40Circuits
50using different frequencies for the two directions of communication
52Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
525with means for reducing leakage of transmitter signal into the receiver
Applicants
  • 香港梵行科技有限公司 HONGKONG VALIN TECHNOLOGY COMPANY LIMITED [CN]/[CN]
Inventors
  • 孟庆南 MENG, Qingnan
Agents
  • 武汉开元知识产权代理有限公司 WUHAN KAIYUAN INTELLECTUAL PROPERTY AGENT LTD.
Priority Data
201811467208.903.12.2018CN
201822014238.603.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) APPARATUS AND METHOD FOR SELF-ADAPTIVELY CANCELLING PASSIVE INTERMODULATION SIGNAL
(FR) APPAREIL ET PROCÉDÉ D'ANNULATION AUTO-ADAPTATIVE D'UN SIGNAL D'INTERMODULATION PASSIVE
(ZH) 一种自适应抵消无源互调信号的装置及其方法
Abstract
(EN)
Disclosed is an apparatus for self-adaptively cancelling a passive intermodulation signal. One main path port of a coupler is connected to the antenna port of a duplexer, the other main path port is connected to the antenna feeder component on an antenna link, and the coupling port of the coupler is electrically connected to the radio frequency port of a canceller circuit; the input end of a passive intermodulation detection circuit is electrically connected to the receiving port of the duplexer, and the output end of the passive intermodulation detection circuit is electrically connected to the input end of a digital processing unit; the digital processing unit is electrically connected to a transmitting circuit unit by means of a transmitted signal frequency-discriminating circuit, and the output end of the digital processing unit is electrically connected to the input ends of the passive intermodulation detection circuit, of the transmitting circuit unit, and of the canceler circuit separately; the output end of the transmitting circuit unit is electrically connected to the input end of the duplexer. The present invention can cancel the component, falling within a receiving frequency band, of the passive intermodulation signal generated by a wireless transceiver device and other devices or components on the link from the antenna port of the device to an antenna.
(FR)
L'invention concerne un appareil d'annulation auto-adaptative d'un signal d'intermodulation passive. Un port de trajet principal d'un coupleur est connecté au port d'antenne d'un duplexeur, l'autre port de trajet principal est connecté au composant d'alimentation d'antenne sur une liaison d'antenne et le port de couplage du coupleur est électriquement connecté au port de fréquence radio d'un circuit annulateur ; l'extrémité d'entrée d'un circuit de détection d'intermodulation passive est connectée électriquement au port de réception du duplexeur et l'extrémité de sortie du circuit de détection d'intermodulation passive est connectée électriquement à l'extrémité d'entrée d'une unité de traitement numérique ; l'unité de traitement numérique est connectée électriquement à une unité de circuit de transmission au moyen d'un circuit de discrimination de fréquence de signal transmis et l'extrémité de sortie de l'unité de traitement numérique est connectée électriquement aux extrémités d'entrée du circuit de détection d'intermodulation passive, de l'unité de circuit de transmission et du circuit annulateur séparément ; l'extrémité de sortie de l'unité de circuit de transmission est électriquement connectée à l'extrémité d'entrée du duplexeur. La présente invention peut annuler le composant, tombant dans une bande de fréquence de réception, du signal d'intermodulation passive généré par un dispositif émetteur-récepteur sans fil et d'autres dispositifs ou composants sur la liaison allant du port d'antenne du dispositif vers une antenne.
(ZH)
本发明公开了一种自适应抵消无源互调信号的装置,耦合器的一个主通路端口与所述双工器的天线口连接,另一个主通路端口与天线链路上的天馈组件连接,耦合器的耦合端口和抵消器电路的射频端口电连接;所述无源互调检测电路的输入端与双工器接收端口电连接,无源互调检测电路的输出端与数字处理单元的输入端电连接;数字处理单元经发射信号鉴频电路与发射电路单元电连接,数字处理单元的输出端分别与无源互调检测电路、发射电路单元和抵消器电路的输入端电连接;发射电路单元的输出端与所述双工器的输入端电连接。本发明能将无线收发设备以及该设备天线口至天线这一段链路上其他设备或组件产生的无源互调信号落入到接收频段的分量抵消。
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