+

WO2018173866A1 - Calibration device, wireless communication device, system, method, and non-transitory computer-readable medium - Google Patents

Calibration device, wireless communication device, system, method, and non-transitory computer-readable medium Download PDF

Info

Publication number
WO2018173866A1
WO2018173866A1 PCT/JP2018/009835 JP2018009835W WO2018173866A1 WO 2018173866 A1 WO2018173866 A1 WO 2018173866A1 JP 2018009835 W JP2018009835 W JP 2018009835W WO 2018173866 A1 WO2018173866 A1 WO 2018173866A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmission
unit
calibration
level
calibration signal
Prior art date
Application number
PCT/JP2018/009835
Other languages
French (fr)
Japanese (ja)
Inventor
石野　徹
Original Assignee
日本電気株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本電気株式会社 filed Critical 日本電気株式会社
Publication of WO2018173866A1 publication Critical patent/WO2018173866A1/en

Links

Images

Definitions

  • the present invention relates to a calibration device, a wireless communication device, a system, a method, and a program, and in particular, it is possible to easily calibrate a wireless communication device having a plurality of transmission / reception units connected to each element of an array antenna.
  • the present invention relates to a calibration device, a wireless communication device, a system, a method, and a program.
  • a transmission / reception unit is connected to each element of the array antenna.
  • the input / output characteristics of each transmitting / receiving unit are measured using a calibration signal, and each transmitting / receiving unit is calibrated based on the measurement result.
  • the calibration signal is connected to a calibration device from a calibration input / output unit provided in each transmission / reception unit. Since the calibration signal is a radio signal, it is necessary to perform calibration with the length of the connected wiring constant. However, since each transmitting / receiving unit is arranged at a different position, it is difficult to make the length between each transmitting / receiving unit and the calibration device constant. Therefore, the wireless characteristics of the calibration signal from the calibration input / output unit to the calibration device of each transmitting / receiving unit are separately measured, and the calibration is performed in consideration of the measurement result. For this reason, there was a problem that it was difficult to calibrate easily.
  • Patent Document 1 discloses a method of calibrating at least one of an amplitude difference and a phase difference without performing a replacement work of a cable (wireless signal wiring).
  • the calibration signal path is switched by a switch when calibration is performed, the switching work is generated, and it has been desired to perform calibration more easily.
  • the present invention has been made to solve such problems, and a calibration device capable of easily calibrating a wireless communication device having a plurality of transmission / reception units connected to each element of an array antenna, and a wireless communication device It is an object of the present invention to provide a communication apparatus, system, method, and program.
  • the calibration apparatus is A calibration device that calibrates a wireless communication device including a first transmission unit and a second transmission unit that transmit a transmission signal, and a first reception unit and a second reception unit that receive a reception signal, The level of the first calibration signal input to the first transmission unit and output from the second reception unit and the level of the second calibration signal input to the second transmission unit and output from the second reception unit are measured.
  • a wireless communication apparatus A first transmitter and a second transmitter for transmitting a transmission signal; A first receiver and a second receiver for receiving a received signal; A first wiring; A first coupler connecting the output of the first transmitter and one end of the first wiring; A second coupler connecting the other end of the first wiring and the input of the second receiving unit; With The second coupler connects the output of the second transmitter and the input of the second receiver.
  • the system according to the present invention comprises: A wireless communication device including a first transmission unit and a second transmission unit for transmitting a transmission signal, a first reception unit and a second reception unit for receiving a reception signal, and a calibration device for calibrating the wireless communication device;
  • a system comprising: The wireless communication device A first wiring; A first coupler connecting the output of the first transmitter and one end of the first wiring; A second coupler for connecting the other end of the first wiring and the input of the second receiver,
  • the calibration device is The level of the first calibration signal input to the first transmission unit and output from the second reception unit and the level of the second calibration signal input to the second transmission unit and output from the second reception unit are measured.
  • a measuring section A control unit that controls a gain of the second transmission unit such that a difference between the level of the first calibration signal and the level of the second calibration signal is equal to or less than a first predetermined value.
  • the method according to the present invention comprises: A method for calibrating a wireless communication apparatus comprising a first transmitter and a second transmitter for transmitting a transmission signal, and a first receiver and a second receiver for receiving a received signal, The level of the first calibration signal input to the first transmission unit and output from the second reception unit and the level of the second calibration signal input to the second transmission unit and output from the second reception unit are measured. Steps, Controlling the gain of the second transmitter so that the difference between the level of the first calibration signal and the level of the second calibration signal is not more than a first predetermined value; Is provided.
  • the program according to the present invention is: A method for calibrating a wireless communication apparatus comprising a first transmitter and a second transmitter for transmitting a transmission signal, and a first receiver and a second receiver for receiving a received signal, The level of the first calibration signal input to the first transmission unit and output from the second reception unit and the level of the second calibration signal input to the second transmission unit and output from the second reception unit are measured. Steps, Controlling the gain of the second transmitter so that the difference between the level of the first calibration signal and the level of the second calibration signal is not more than a first predetermined value; Is executed on the computer.
  • a calibration device capable of easily calibrating a wireless communication device having a plurality of transmission / reception units connected to each element of an array antenna. it can.
  • 1 is a block diagram illustrating a calibration device and a wireless communication device according to a first embodiment. It is a typical perspective view which illustrates an array antenna.
  • 1 is a block diagram illustrating a wireless communication device according to a first embodiment. It is a block diagram which illustrates the connection at the time of measuring the characteristic between other transmission / reception departments.
  • 1 is a block diagram illustrating a calibration device and a wireless communication device according to a first embodiment. It is a block diagram which illustrates the calibration apparatus and radio
  • FIG. 1 is a block diagram illustrating a calibration device and a wireless communication device according to the first embodiment.
  • FIG. 1 shows an example in which there are four transmission / reception units.
  • the transmission / reception unit may be referred to as a block.
  • FIG. 2 is a schematic perspective view illustrating an array antenna.
  • FIG. 2 shows an example in which there are 36 array antenna elements.
  • the array antenna element may be referred to as an array antenna.
  • the system 1 includes a wireless communication device 50 and a calibration device 10.
  • the calibration device 10 is a calibration device that calibrates the wireless communication device 50.
  • the wireless communication device 50 is a base station such as a mobile phone, for example.
  • the wireless communication device 50 includes a first transmission / reception unit 51 to a fourth transmission / reception unit 54 connected to the array antenna 515 to the array antenna 545 of the array antenna unit 50a.
  • the array antennas 515 to 545 are configured as an array antenna unit 50a as shown in FIG.
  • the first transmission unit 512 to the fourth transmission unit 542 transmit transmission signals via the array antenna 515 to the array antenna 545.
  • First reception unit 518 to fourth reception unit 548 receive received signals via array antenna 515 to array antenna 545.
  • the calibration device 10 includes a measurement unit 11 and a control unit 12.
  • the measurement unit 11 inputs the first transmission unit 512 and measures the level of the first calibration signal S1 output from the second reception unit 528.
  • the measurement unit 11 measures the level of the second calibration signal S2 input to the second transmission unit 522 and output from the second reception unit 528.
  • the control unit 12 controls the gain of the second transmission unit 522 so that the difference between the level of the first calibration signal S1 and the level of the second calibration signal S2 is equal to or less than the first predetermined value L1.
  • first calibration signal S1 may be input to the digital-analog converter 511.
  • second calibration signal S2 may be input to the digital-analog conversion unit 521.
  • the measurement unit 11 may measure the level of the first calibration signal S1 output from the analog-digital conversion unit 519.
  • the wireless communication device 50 includes a first coupler, a second coupler, and a first wiring Cn1.
  • the first coupler connects the output of the first transmission unit 512 and one end of the first wiring Cn1.
  • the second coupler connects the other end of the first wiring Cn1 and the input of the second receiving unit 528.
  • the second coupler connects the output of the second transmitter 522 and the input of the second receiver 528.
  • the coupler 513, the coupler 514, the coupler 516, and the coupler 517 are collectively referred to as a first coupler, and the coupler 523, the coupler 524, the coupler 526, and the coupler 527 are collectively referred to as a second coupler.
  • FIG. 3 is a block diagram illustrating a wireless communication apparatus according to the first embodiment.
  • FIG. 3 for the sake of simplicity, an example of one transmission / reception unit is shown.
  • TX_ transmission characteristics of the transmission units of each block of the first transmission / reception unit 51 to the fourth transmission / reception unit 54
  • RX_ reception characteristics of the reception unit
  • TX_51 transmission characteristic of the transmission unit of the first transmission / reception unit 51
  • RX_51 reception characteristic of the reception unit of the first transmission / reception unit 51
  • the transmission characteristic “TX_ (block name)” may be a characteristic including a digital-analog conversion unit preceding the transmission unit.
  • the reception characteristic “RX_ (block name)” may be a characteristic including an analog-digital conversion unit subsequent to the reception unit.
  • the port p1 and the port p3 of the transmission / reception switch 51c are connected. Then, a normal transmission signal is input from the digital-analog conversion unit 511 and output from the array antenna 515 via the first transmission unit 512, the coupler 514, and the transmission / reception switch 51c.
  • the port p2 and the port p3 of the transmission / reception switch 51c are connected. Then, the normal reception signal input from the array antenna 515 is input to the analog / digital conversion unit 519 via the transmission / reception switch 51 c, the coupler 516, and the first reception unit 518.
  • Embodiment 1 is to relatively match the transmission characteristics and reception characteristics of all the transmission / reception units (blocks). For example, the transmission characteristics of the first transmission unit 512 of the first transmission / reception unit 51 and the transmission characteristics of the second transmission unit 522 of the second transmission / reception unit 52 are combined, and the reception characteristics of the first reception unit 518 of the first transmission / reception unit 51 and the first 2 The reception characteristic of the second receiving unit 528 of the transmitting / receiving unit 52 is matched.
  • the characteristics within the own transmitting / receiving unit and the characteristics between other transmitting / receiving units are measured.
  • measurement of characteristics in the own transmission / reception unit will be described.
  • the first transmission / reception unit 51 When measuring the characteristics of the first transmission / reception unit 51, the calibration signal S is input to the digital / analog conversion unit 511.
  • the calibration signal S flows as follows: digital-analog converter 511 ⁇ first transmitter 512 ⁇ coupler 514 ⁇ coupler 513 ⁇ coupler 517 ⁇ coupler 516 ⁇ first receiver 518 ⁇ analog / digital converter 519.
  • the calibration signal S output from the analog-digital conversion unit 519 is input to the measurement unit 11 of the calibration apparatus 10 illustrated in FIG.
  • the measuring unit 11 measures the level of the calibration signal S.
  • the coupler 513 and the coupler 517 may be referred to as a hybrid coupler.
  • the transmission characteristic “TX_ (block name)” of the transmission unit and the reception characteristic “RX_ (block name)” of the reception unit are referred to as “TX_ (block name) ⁇ RX_ (block name)”.
  • TX_ (block name) ⁇ RX_ (block name) the characteristic in the 1st transmission / reception part 51 is called "TX_51 * RX_51.”
  • Measurement of the characteristics of the second transmission / reception unit 52 of the wireless communication device 50 can also be performed in the same manner as the first transmission / reception unit 51. Specifically, the measurement unit 11 inputs the second transmission unit 522 and measures the level of the second calibration signal S2 output from the second reception unit 528. Thereby, “TX_52 ⁇ RX_52” is obtained as a characteristic of the second transmitting / receiving unit 52.
  • the measurement of the characteristics in the respective transmitting / receiving units of the third transmitting / receiving unit 53 and the fourth transmitting / receiving unit 54 of the wireless communication device 50 can be performed in the same manner as the first transmitting / receiving unit 51. Then, “TX_51 ⁇ RX_51”, “TX_52 ⁇ RX_52”, “TX_53 ⁇ RX_53”, and “TX_54 ⁇ RX_54” are obtained as characteristics in the own transmitting / receiving unit.
  • FIG. 4 is a block diagram illustrating a connection when measuring characteristics between other transmission / reception units.
  • FIG. 4 shows an example in which there are four transmission / reception units.
  • the calibration signal output unit 51b and the calibration signal input unit 52a are connected by the first wiring Cn1. Connecting. In order to measure the characteristics when passing through the second transmitter 522 and the third receiver 538, the calibration signal output unit 52b and the calibration signal input unit 53a are connected by the second wiring Cn2. In order to measure the characteristics when passing through the third transmitter 532 and the fourth receiver 548, the calibration signal output unit 53b and the calibration signal input unit 54a are connected by the third wiring Cn3.
  • the calibration signal output unit 51b of the first transmission / reception unit 51 and the calibration signal input unit 52a of the second transmission / reception unit 52 are connected by the first wiring Cn1.
  • the first calibration signal S1 is input to the digital-analog converter 511.
  • the first calibration signal S1 is a digital / analog conversion unit 511 ⁇ first transmission unit 512 ⁇ coupler 514 ⁇ coupler 513 ⁇ calibration signal output unit 51b ⁇ calibration signal input unit 52a ⁇ coupler 527 ⁇ coupler 526 ⁇ second reception unit. 528 ⁇ Analog / digital conversion unit 529
  • the first calibration signal S1 output from the analog-digital conversion unit 529 is input to the measurement unit 11 of the calibration apparatus 10 illustrated in FIG.
  • the measuring unit 11 measures the level of the first calibration signal S1.
  • the characteristic “TX_52 ⁇ RX_53 can be obtained.
  • the characteristic“ TX_53 ⁇ RX_54 ” is obtained. Can be obtained.
  • FIG. 5 is a block diagram illustrating the calibration device and the wireless communication device according to the first embodiment.
  • the characteristic “TX_52 ⁇ RX_52” and the characteristic “TX_51 ⁇ RX_52” have the same characteristic “RX_52”. Therefore, as shown in FIG. 5, the first calibration signal S1 for measuring the characteristic “TX_51 ⁇ RX_52” and the second calibration signal S2 for measuring the characteristic “TX_52 ⁇ RX_52” are Input to the measurement unit 11. Then, the control unit 12 compares the first calibration signal S1 and the second calibration signal S2, and the difference between the level of the first calibration signal S1 and the level of the second calibration signal S2 is the first predetermined value L1.
  • the gain of the second transmission unit 522 is controlled to be as follows.
  • the transmission characteristic “TX_52” of the second transmission / reception unit 52 can be matched with the transmission characteristic “TX_51” of the first transmission / reception unit 51.
  • the reception characteristic “RX_52” is common, and thus the reception characteristic “RX_52” need not be known.
  • control unit 12 may control the gain of the second transmission unit 522 by changing the operation bias of the second transmission amplifier included in the second transmission unit 522.
  • control unit 12 may control the gain of the second transmission unit 522 by changing the attenuation value of the second transmission attenuator included in the second transmission unit 522.
  • the characteristic “TX_53 ⁇ RX_53” and the characteristic “TX_52 ⁇ RX_53” are common to “RX_53”. Therefore, next, the characteristic “TX_53 ⁇ RX_53” and the characteristic “TX_52 ⁇ RX_53” are compared and the third transmission unit 532 is controlled, so that the transmission characteristic “TX_53” of the third transmission unit 532 is changed to the second transmission.
  • the transmission characteristic “TX_52” of the unit 522 can be matched.
  • the characteristic “TX_54 ⁇ RX_54” and the characteristic “TX_53 ⁇ RX_54” are compared, and the fourth transmission unit 542 is controlled, so that the transmission characteristic “TX_54” of the fourth transmission unit 542 is changed to the third transmission unit 532.
  • the transmission characteristic can be adjusted to “TX_53”.
  • the transmission characteristic “TX_52” of the second transmission unit 522, the transmission characteristic “TX_53” of the third transmission unit 532, and the transmission characteristic “TX_54” of the fourth transmission unit 542 are changed to the transmission characteristic of the first transmission unit 512. It can be adjusted to “TX — 51”.
  • the characteristic “TX_51 ⁇ RX_51” and the characteristic “TX_51 ⁇ RX_52” have the same characteristic “TX_51”. Therefore, as shown in FIG. 5, the first calibration signal S1 for measuring the characteristic “TX_51 ⁇ RX_52” and the third calibration signal S3 for measuring the characteristic “TX_51 ⁇ RX_51” Input to the measurement unit 11. That is, the first calibration signal S1 input to the first transmission unit 512 and output from the second reception unit 528, and the third calibration signal S3 input to the first transmission unit 512 and output from the first reception unit 518 are measured. Input to section 11.
  • control unit 12 compares the first calibration signal S1 and the third calibration signal S3, and the difference between the level of the first calibration signal S1 and the level of the third calibration signal S3 is the second predetermined value L2.
  • the gain of the second receiving unit 528 is controlled so as to be as follows.
  • reception characteristic “RX_52” of the second transmission / reception unit 52 can be matched with the reception characteristic “RX_51” of the first transmission / reception unit 51. Note that, since the transmission characteristic “TX_51” is common during the control, it is not necessary to know the characteristic of the transmission characteristic “TX_51”.
  • control unit 12 may control the gain of the second reception unit 528 by changing the operation bias of the second reception amplifier included in the second reception unit 528.
  • control unit 12 may control the gain of the second reception unit 528 by changing the attenuation value of the second reception attenuator included in the second reception unit 528.
  • the characteristic “TX_52 ⁇ RX_52” and the characteristic “TX_52 ⁇ RX_53” are compared, and the third reception unit 538 is controlled, so that the reception characteristic “RX_53” of the third reception unit 538 is changed to that of the second reception unit 528. It can be matched with the reception characteristic “RX — 52”.
  • the receiving characteristic “RX_54” of the fourth receiving unit 548 is changed to the receiving characteristic of the third receiving unit 538. It can be set to “RX_53”.
  • reception characteristic “RX_52”, the reception characteristic “RX_53”, and the reception characteristic “RX_54” can be matched with the reception characteristic “RX_51”.
  • the first transmission / reception unit 51 is used as a reference, but another transmission / reception unit may be used as a reference.
  • each of the first transmission / reception unit 51, the third transmission / reception unit 53, and the fourth transmission / reception unit 54 may be matched with the second transmission / reception unit 52.
  • Which transmission / reception unit is used as a reference is determined based on the arrangement of the parts constituting the wireless communication device 50, temperature conditions, and the like.
  • the calibration of the characteristics of the array antenna and the wireless communication device 50 including the transmission / reception unit for each antenna is performed using the own transmission / reception unit and the transmission / reception unit adjacent thereto.
  • the calibration device 10 acquires the calibration signal S using the coupler of the wireless communication device 50, there is no need to switch the path of the calibration signal S by a switch or the like.
  • the calibration apparatus 10 can measure the calibration signal S only by turning on / off the calibration signal S.
  • the calibration signal input unit and the calibration signal output unit of each adjacent transmitting / receiving unit are connected. Since the wireless wiring length between the calibration signal input unit and the calibration signal output unit is substantially constant, the measurement error can be reduced.
  • the wiring can be easily performed. Further, since the wirings can be prevented from overlapping, the wiring layout is not difficult and the space can be saved.
  • the number of transmitting / receiving units can be easily increased by connecting the calibration signal input units and the calibration signal output units of the respective transmitting / receiving units with a daisy chain.
  • the degree of freedom is high.
  • the calibration apparatus calibrates a plurality of transmission / reception units in parallel in time. Thereby, the effect of shortening the calibration time when the number of transmission / reception units is increased is great. All the measurements can be completed in two time frames of the measurement in the own transmission / reception unit and the measurement between other transmission / reception units. A greater effect can be obtained as the number of transmission / reception units increases.
  • the present invention is not limited to this.
  • the first embodiment may be applied even when there are other than four transmission / reception units.
  • FIG. 6 is a block diagram illustrating a calibration device and a wireless communication device according to a comparative example.
  • the calibration device 40 inputs the calibration signal S from each of the calibration signal input / output units 81ab to 84ab of the wireless communication device 80, and performs calibration for each of the transmission / reception units 81 to 84.
  • the transmission / reception units 81 to 84 are arranged at different positions. Therefore, in the calibration signal wiring unit 45, it is difficult to make the length of the wiring of the calibration signal S between each of the calibration signal input / output units 81ab to 84ab and the calibration device 40 constant. For this reason, in the comparative example, the wireless signal characteristics of the wiring from the respective calibration signal input / output units 81ab to 84ab to the calibration device 40 are separately measured, and the calibration is performed in consideration of the measurement result.
  • the calibration device 40 measures the characteristics of the transmission / reception units 81 to 84 by switching the transmission / reception units 81 to 84 by the switch 42 after demultiplexing or synthesis by the demultiplexing synthesis unit 41 and changing the measurement time. Then calibrate. For example, the transmitter / receiver 81 is measured and calibrated, and then the transmitter / receiver 82 is measured and calibrated. After the transmitter / receiver 82 is measured and calibrated, the transmitter / receiver 83 is measured and calibrated. Thus, it is difficult to shorten the calibration time in the comparative example.
  • the first transmission / reception unit and the last transmission / reception unit are connected.
  • the calibration signal output unit 54b and the calibration signal input unit 51a shown in FIG. 4 are connected, and the characteristics when passing through the fourth transmission unit 542 and the first reception unit 518 are measured.
  • the characteristics of the second transmission / reception unit 52, the third transmission / reception unit 53, and the fourth transmission / reception unit 54 are already matched with the characteristics of the first transmission / reception unit 51.
  • a spare calibration signal input unit and a spare calibration signal output unit may be provided.
  • the radio communication device 50 can be calibrated using the spare calibration signal input unit and the spare calibration signal output unit.
  • the present invention has been described as a hardware configuration, but the present invention is not limited to this.
  • the present invention can also realize the processing of each component by causing a CPU (Central Processing Unit) to execute a computer program.
  • a CPU Central Processing Unit
  • Non-transitory computer readable media include various types of tangible storage media.
  • Examples of non-transitory computer-readable media include magnetic recording media (eg flexible disks, magnetic tapes, hard disk drives), magneto-optical recording media (eg magneto-optical discs), CD-ROMs (Read Only Memory), CD-Rs, CD-R / W, semiconductor memory (for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable ROM)), flash ROM, RAM (Random Access Memory) are included.
  • the program may also be supplied to the computer by various types of temporary computer-readable media. Examples of transitory computer readable media include electrical signals, optical signals, and electromagnetic waves.
  • the temporary computer-readable medium can supply the program to the computer via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.
  • Calibration signal input / output unit Cn1 ... First wiring Cn2 ... Second wiring Cn3 ... Third wiring p1, p2, p3 ... Port L1 ... First predetermined value L2 ... second predetermined value S ... calibration signal S1 ... first calibration signal S2 ... second calibration signal

Landscapes

  • Radio Transmission System (AREA)

Abstract

The purpose of the present invention is to provide a calibration device with which a wireless communication device having a plurality of transmit/receive units connected to respective elements of an array antenna can be calibrated simply, a wireless communication device, a system, a method, and a program. The calibration device (10) according to the present invention is a calibration device (10) for calibrating a wireless communication device (50) provided with: a first transmit unit (512) and a second transmit unit (522) which transmit transmission signals; and a first receive unit (518) and a second receive unit (528) which receive reception signals. The calibration device (10) is provided with: a measurement unit (11) which measures the level of a first calibration signal (S1) input into the first transmit unit (512) and output from the second receive unit (528), and the level of a second calibration signal (S2) input into the second transmit unit (522) and output from the second receive unit (528); and a control unit (12) which controls the gain of the second transmit unit (522) so that the difference between the level of the first calibration signal (S1) and the level of the second calibration signal (S2) becomes not more than a first predetermined value (L1).

Description

校正装置、無線通信装置、システム、方法及び非一時的なコンピュータ可読媒体Calibration apparatus, wireless communication apparatus, system, method, and non-transitory computer-readable medium
　本発明は、校正装置、無線通信装置、システム、方法及びプログラムに関するものであり、特に、アレイアンテナの各素子に接続された複数の送受信部を有する無線通信装置を簡易に校正することが可能な校正装置、無線通信装置、システム、方法及びプログラムに関する。 The present invention relates to a calibration device, a wireless communication device, a system, a method, and a program, and in particular, it is possible to easily calibrate a wireless communication device having a plurality of transmission / reception units connected to each element of an array antenna. The present invention relates to a calibration device, a wireless communication device, a system, a method, and a program.
　近年、５Ｇ(5Generation)－ＬＴＥ(Long Term Evolution)用に、多素子で構成されたアレイアンテナを備えた携帯電話用の基地局が開発されている。該基地局においては、アレイアンテナの各素子に送受信部が接続される。アレイアンテナを高精度で動作させるには、各送受信部の特性のばらつきを抑える必要がある。このため、校正用信号を使用して各送受信部の入出力特性を測定し、該測定結果に基づいて、各送受信部を校正していた。 Recently, base stations for mobile phones equipped with multi-element array antennas have been developed for 5G (5 Generation) -LTE (Long Term Evolution). In the base station, a transmission / reception unit is connected to each element of the array antenna. In order to operate the array antenna with high accuracy, it is necessary to suppress variations in characteristics of each transmitting / receiving unit. For this reason, the input / output characteristics of each transmitting / receiving unit are measured using a calibration signal, and each transmitting / receiving unit is calibrated based on the measurement result.
　校正用信号は、各送受信部に設けられた校正用入出力部から校正装置に接続される。校正用信号は無線信号であるため、その接続した配線の長さを一定にして、校正を行う必要がある。しかしながら、各送受信部は異なる位置に配置されるため、各送受信部と校正装置との間の長さを一定にすることは難しかった。そこで、各送受信部の校正用入出力部から校正装置までの校正用信号の無線特性を別途測定し、その測定結果を加味して校正を行っていた。このため、簡易に校正することが難しいという問題があった。 The calibration signal is connected to a calibration device from a calibration input / output unit provided in each transmission / reception unit. Since the calibration signal is a radio signal, it is necessary to perform calibration with the length of the connected wiring constant. However, since each transmitting / receiving unit is arranged at a different position, it is difficult to make the length between each transmitting / receiving unit and the calibration device constant. Therefore, the wireless characteristics of the calibration signal from the calibration input / output unit to the calibration device of each transmitting / receiving unit are separately measured, and the calibration is performed in consideration of the measurement result. For this reason, there was a problem that it was difficult to calibrate easily.
　特許文献１には、ケーブル（無線信号配線）の付替え作業を行うことなく、振幅差又は位相差のうち少なくとも一方の校正を行う方法が開示されている。特許文献１では、校正を行う際に、校正用信号経路をスイッチにより切替えるのでその切替作業が発生しており、より簡易に校正することが望まれていた。 Patent Document 1 discloses a method of calibrating at least one of an amplitude difference and a phase difference without performing a replacement work of a cable (wireless signal wiring). In Patent Document 1, since the calibration signal path is switched by a switch when calibration is performed, the switching work is generated, and it has been desired to perform calibration more easily.
特開２０１６－１２２８９５号公報Japanese Unexamined Patent Publication No. 2016-122895
　上述のように、アレイアンテナの各素子に接続された複数の送受信部を有する無線通信装置を簡易に校正することは難しいという問題があった。 As described above, there is a problem that it is difficult to easily calibrate a wireless communication apparatus having a plurality of transmission / reception units connected to each element of the array antenna.
　本発明は、このような問題を解決するためになされたものであり、アレイアンテナの各素子に接続された複数の送受信部を有する無線通信装置を簡易に校正することが可能な校正装置、無線通信装置、システム、方法及びプログラムを提供することを目的とする。 The present invention has been made to solve such problems, and a calibration device capable of easily calibrating a wireless communication device having a plurality of transmission / reception units connected to each element of an array antenna, and a wireless communication device It is an object of the present invention to provide a communication apparatus, system, method, and program.
　本発明に係る校正装置は、
　送信信号を送信する第１送信部と第２送信部と、受信信号を受信する第１受信部と第２受信部と、を備えた無線通信装置を校正する校正装置であって、
　前記第１送信部に入力し前記第２受信部から出力した第１校正用信号のレベルと前記第２送信部に入力し前記第２受信部から出力した第２校正用信号のレベルを測定する測定部と、
　前記第１校正用信号のレベルと前記第２校正用信号のレベルとの差が第１所定値以下となるように前記第２送信部の利得を制御する制御部と、
　を備える。 The calibration apparatus according to the present invention is
A calibration device that calibrates a wireless communication device including a first transmission unit and a second transmission unit that transmit a transmission signal, and a first reception unit and a second reception unit that receive a reception signal,
The level of the first calibration signal input to the first transmission unit and output from the second reception unit and the level of the second calibration signal input to the second transmission unit and output from the second reception unit are measured. A measuring section;
A control unit that controls the gain of the second transmission unit so that the difference between the level of the first calibration signal and the level of the second calibration signal is equal to or less than a first predetermined value;
Is provided.
　本発明に係る無線通信装置は、
　送信信号を送信する第１送信部と第２送信部と、
　受信信号を受信する第１受信部と第２受信部と、
　第１配線と、
　前記第１送信部の出力と前記第１配線の一端を接続する第１カプラと、
　前記第１配線の他端と前記第２受信部の入力を接続する第２カプラと、
　を備え、
　前記第２カプラは、前記第２送信部の出力と前記第２受信部の入力を接続する。 A wireless communication apparatus according to the present invention
A first transmitter and a second transmitter for transmitting a transmission signal;
A first receiver and a second receiver for receiving a received signal;
A first wiring;
A first coupler connecting the output of the first transmitter and one end of the first wiring;
A second coupler connecting the other end of the first wiring and the input of the second receiving unit;
With
The second coupler connects the output of the second transmitter and the input of the second receiver.
　本発明に係るシステムは、
　送信信号を送信する第１送信部と第２送信部と、受信信号を受信する第１受信部と第２受信部と、を備えた無線通信装置と、前記無線通信装置を校正する校正装置とを備えたシステムであって、
　前記無線通信装置は、
　第１配線と、
　前記第１送信部の出力と前記第１配線の一端を接続する第１カプラと、
　前記第１配線の他端と前記第２受信部の入力を接続する第２カプラと、を備え、
　前記校正装置は、
　前記第１送信部に入力し前記第２受信部から出力した第１校正用信号のレベルと前記第２送信部に入力し前記第２受信部から出力した第２校正用信号のレベルを測定する測定部と、
　前記第１校正用信号のレベルと前記第２校正用信号のレベルとの差が第１所定値以下となるように前記第２送信部の利得を制御する制御部と、を備える。 The system according to the present invention comprises:
A wireless communication device including a first transmission unit and a second transmission unit for transmitting a transmission signal, a first reception unit and a second reception unit for receiving a reception signal, and a calibration device for calibrating the wireless communication device; A system comprising:
The wireless communication device
A first wiring;
A first coupler connecting the output of the first transmitter and one end of the first wiring;
A second coupler for connecting the other end of the first wiring and the input of the second receiver,
The calibration device is
The level of the first calibration signal input to the first transmission unit and output from the second reception unit and the level of the second calibration signal input to the second transmission unit and output from the second reception unit are measured. A measuring section;
A control unit that controls a gain of the second transmission unit such that a difference between the level of the first calibration signal and the level of the second calibration signal is equal to or less than a first predetermined value.
　本発明に係る方法は、
　送信信号を送信する第１送信部と第２送信部と、受信信号を受信する第１受信部と第２受信部と、を備えた無線通信装置を校正する方法であって、
　前記第１送信部に入力し前記第２受信部から出力した第１校正用信号のレベルと前記第２送信部に入力し前記第２受信部から出力した第２校正用信号のレベルを測定するステップと、
　前記第１校正用信号のレベルと前記第２校正用信号のレベルとの差が第１所定値以下となるように前記第２送信部の利得を制御するステップと、
　を備える。 The method according to the present invention comprises:
A method for calibrating a wireless communication apparatus comprising a first transmitter and a second transmitter for transmitting a transmission signal, and a first receiver and a second receiver for receiving a received signal,
The level of the first calibration signal input to the first transmission unit and output from the second reception unit and the level of the second calibration signal input to the second transmission unit and output from the second reception unit are measured. Steps,
Controlling the gain of the second transmitter so that the difference between the level of the first calibration signal and the level of the second calibration signal is not more than a first predetermined value;
Is provided.
　本発明に係るプログラムは、
　送信信号を送信する第１送信部と第２送信部と、受信信号を受信する第１受信部と第２受信部と、を備えた無線通信装置を校正する方法であって、
　前記第１送信部に入力し前記第２受信部から出力した第１校正用信号のレベルと前記第２送信部に入力し前記第２受信部から出力した第２校正用信号のレベルを測定するステップと、
　前記第１校正用信号のレベルと前記第２校正用信号のレベルとの差が第１所定値以下となるように前記第２送信部の利得を制御するステップと、
　をコンピュータに実行させる。 The program according to the present invention is:
A method for calibrating a wireless communication apparatus comprising a first transmitter and a second transmitter for transmitting a transmission signal, and a first receiver and a second receiver for receiving a received signal,
The level of the first calibration signal input to the first transmission unit and output from the second reception unit and the level of the second calibration signal input to the second transmission unit and output from the second reception unit are measured. Steps,
Controlling the gain of the second transmitter so that the difference between the level of the first calibration signal and the level of the second calibration signal is not more than a first predetermined value;
Is executed on the computer.
　本発明によれば、アレイアンテナの各素子に接続された複数の送受信部を有する無線通信装置を簡易に校正することが可能な校正装置、無線通信装置、システム、方法及びプログラムを提供することができる。 According to the present invention, it is possible to provide a calibration device, a wireless communication device, a system, a method, and a program capable of easily calibrating a wireless communication device having a plurality of transmission / reception units connected to each element of an array antenna. it can.
実施の形態１に係る校正装置と無線通信装置を例示するブロック図である。1 is a block diagram illustrating a calibration device and a wireless communication device according to a first embodiment. アレイアンテナを例示する模式的斜視図である。It is a typical perspective view which illustrates an array antenna. 実施の形態１に係る無線通信装置を例示するブロック図である。1 is a block diagram illustrating a wireless communication device according to a first embodiment. 他の送受信部門間の特性を測定する際の接続を例示するブロック図である。It is a block diagram which illustrates the connection at the time of measuring the characteristic between other transmission / reception departments. 実施の形態１に係る校正装置と無線通信装置を例示するブロック図である。1 is a block diagram illustrating a calibration device and a wireless communication device according to a first embodiment. 比較例に係る校正装置と無線通信装置を例示するブロック図である。It is a block diagram which illustrates the calibration apparatus and radio | wireless communication apparatus which concern on a comparative example.
　以下、図面を参照して本発明の実施の形態について説明する。各図面において、同一又は対応する要素には同一の符号が付されており、説明の明確化のため、必要に応じて重複説明を省略する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding elements are denoted by the same reference numerals, and redundant description is omitted as necessary for the sake of clarity.
　［実施の形態１］
　図１は、実施の形態１に係る校正装置と無線通信装置を例示するブロック図である。
　図１では、送受信部が４つの例を示す。送受信部をブロックと称することもある。
　図２は、アレイアンテナを例示する模式的斜視図である。
　図２では、アレイアンテナ素子が３６個の例を示す。
　尚、アレイアンテナ素子をアレイアンテナと称することもある。 [Embodiment 1]
FIG. 1 is a block diagram illustrating a calibration device and a wireless communication device according to the first embodiment.
FIG. 1 shows an example in which there are four transmission / reception units. The transmission / reception unit may be referred to as a block.
FIG. 2 is a schematic perspective view illustrating an array antenna.
FIG. 2 shows an example in which there are 36 array antenna elements.
The array antenna element may be referred to as an array antenna.
　図１に示すように、システム１は、無線通信装置５０と校正装置１０を備える。 As shown in FIG. 1, the system 1 includes a wireless communication device 50 and a calibration device 10.
　校正装置１０は、無線通信装置５０を校正する校正装置である。無線通信装置５０は、例えば、携帯電話等の基地局である。無線通信装置５０は、アレイアンテナ部５０ａのアレイアンテナ５１５～アレイアンテナ５４５のそれぞれに接続された第１送受信部５１～第４送受信部５４を有する。アレイアンテナ５１５～アレイアンテナ５４５は、図２に示すようなアレイアンテナ部５０ａとして構成される。第１送信部５１２～第４送信部５４２は、アレイアンテナ５１５～アレイアンテナ５４５を介して、送信信号を送信する。第１受信部５１８～第４受信部５４８は、アレイアンテナ５１５～アレイアンテナ５４５を介して、受信信号を受信する。 The calibration device 10 is a calibration device that calibrates the wireless communication device 50. The wireless communication device 50 is a base station such as a mobile phone, for example. The wireless communication device 50 includes a first transmission / reception unit 51 to a fourth transmission / reception unit 54 connected to the array antenna 515 to the array antenna 545 of the array antenna unit 50a. The array antennas 515 to 545 are configured as an array antenna unit 50a as shown in FIG. The first transmission unit 512 to the fourth transmission unit 542 transmit transmission signals via the array antenna 515 to the array antenna 545. First reception unit 518 to fourth reception unit 548 receive received signals via array antenna 515 to array antenna 545.
　校正装置１０は、測定部１１と制御部１２を備える。測定部１１は、第１送信部５１２に入力し、第２受信部５２８から出力した第１校正用信号Ｓ１のレベルを測定する。また、測定部１１は、第２送信部５２２に入力し、第２受信部５２８から出力した第２校正用信号Ｓ２のレベルを測定する。 The calibration device 10 includes a measurement unit 11 and a control unit 12. The measurement unit 11 inputs the first transmission unit 512 and measures the level of the first calibration signal S1 output from the second reception unit 528. In addition, the measurement unit 11 measures the level of the second calibration signal S2 input to the second transmission unit 522 and output from the second reception unit 528.
　制御部１２は、第１校正用信号Ｓ１のレベルと第２校正用信号Ｓ２のレベルとの差が第１所定値Ｌ１以下となるように第２送信部５２２の利得を制御する。 The control unit 12 controls the gain of the second transmission unit 522 so that the difference between the level of the first calibration signal S1 and the level of the second calibration signal S2 is equal to or less than the first predetermined value L1.
　尚、第１校正用信号Ｓ１は、デジタルアナログ変換部５１１に入力されてもよい。また、第２校正用信号Ｓ２は、デジタルアナログ変換部５２１に入力されてもよい。また、測定部１１は、アナログデジタル変換部５１９から出力した第１校正用信号Ｓ１のレベルを測定してもよい。 Note that the first calibration signal S1 may be input to the digital-analog converter 511. Further, the second calibration signal S2 may be input to the digital-analog conversion unit 521. The measurement unit 11 may measure the level of the first calibration signal S1 output from the analog-digital conversion unit 519.
　無線通信装置５０は、第１カプラと第２カプラと第１配線Ｃｎ１を備える。第１カプラは、第１送信部５１２の出力と第１配線Ｃｎ１の一端を接続する。第２カプラは、第１配線Ｃｎ１の他端と第２受信部５２８の入力を接続する。また、第２カプラは、第２送信部５２２の出力と第２受信部５２８の入力を接続する。 The wireless communication device 50 includes a first coupler, a second coupler, and a first wiring Cn1. The first coupler connects the output of the first transmission unit 512 and one end of the first wiring Cn1. The second coupler connects the other end of the first wiring Cn1 and the input of the second receiving unit 528. The second coupler connects the output of the second transmitter 522 and the input of the second receiver 528.
　尚、カプラ５１３、カプラ５１４、カプラ５１６及びカプラ５１７を総称して第１カプラと称し、カプラ５２３、カプラ５２４、カプラ５２６及びカプラ５２７を総称して第２カプラと称する。 The coupler 513, the coupler 514, the coupler 516, and the coupler 517 are collectively referred to as a first coupler, and the coupler 523, the coupler 524, the coupler 526, and the coupler 527 are collectively referred to as a second coupler.
　図３は、実施の形態１に係る無線通信装置を例示するブロック図である。
　図３では、簡単のため、送受信部が１つの例を示す。 FIG. 3 is a block diagram illustrating a wireless communication apparatus according to the first embodiment.
In FIG. 3, for the sake of simplicity, an example of one transmission / reception unit is shown.
　第１送受信部５１～第４送受信部５４の各ブロックの送信部の送信特性を「ＴＸ＿（ブロック名）」とし、受信部の受信特性を「ＲＸ＿（ブロック名）」と称する。例えば、第１送受信部５１の送信部の送信特性を「ＴＸ＿５１」と称し、第１送受信部５１の受信部の受信特性を「ＲＸ＿５１」と称する。 The transmission characteristics of the transmission units of each block of the first transmission / reception unit 51 to the fourth transmission / reception unit 54 are referred to as “TX_ (block name)”, and the reception characteristics of the reception unit are referred to as “RX_ (block name)”. For example, the transmission characteristic of the transmission unit of the first transmission / reception unit 51 is referred to as “TX_51”, and the reception characteristic of the reception unit of the first transmission / reception unit 51 is referred to as “RX_51”.
　尚、送信特性「ＴＸ＿（ブロック名）」は、送信部の前段のデジタルアナログ変換部を含めた特性としてもよい。また、受信特性「ＲＸ＿（ブロック名）」は、受信部の後段のアナログデジタル変換部を含めた特性としてもよい。 It should be noted that the transmission characteristic “TX_ (block name)” may be a characteristic including a digital-analog conversion unit preceding the transmission unit. Further, the reception characteristic “RX_ (block name)” may be a characteristic including an analog-digital conversion unit subsequent to the reception unit.
　図３において、通常の送信信号を送信する場合、送受信スイッチ５１ｃのポートｐ１とポートｐ３が接続される。そして、通常の送信信号は、デジタルアナログ変換部５１１から入力し、第１送信部５１２とカプラ５１４と送受信スイッチ５１ｃを介してアレイアンテナ５１５から出力する。 In FIG. 3, when transmitting a normal transmission signal, the port p1 and the port p3 of the transmission / reception switch 51c are connected. Then, a normal transmission signal is input from the digital-analog conversion unit 511 and output from the array antenna 515 via the first transmission unit 512, the coupler 514, and the transmission / reception switch 51c.
　また、通常の受信信号を受信する場合、送受信スイッチ５１ｃのポートｐ２とポートｐ３が接続される。そして、アレイアンテナ５１５から入力した通常の受信信号は、送受信スイッチ５１ｃとカプラ５１６と第１受信部５１８とを介してアナログデジタル変換部５１９に入力する。 Further, when receiving a normal reception signal, the port p2 and the port p3 of the transmission / reception switch 51c are connected. Then, the normal reception signal input from the array antenna 515 is input to the analog / digital conversion unit 519 via the transmission / reception switch 51 c, the coupler 516, and the first reception unit 518.
　実施の形態１の目的は、全ての送受信部（ブロック）の送信特性と受信特性を相対的に合わせることである。例えば、第１送受信部５１の第１送信部５１２の送信特性と第２送受信部５２の第２送信部５２２の送信特性を合わせ、第１送受信部５１の第１受信部５１８の受信特性と第２送受信部５２の第２受信部５２８の受信特性を合わせることである。 The purpose of Embodiment 1 is to relatively match the transmission characteristics and reception characteristics of all the transmission / reception units (blocks). For example, the transmission characteristics of the first transmission unit 512 of the first transmission / reception unit 51 and the transmission characteristics of the second transmission unit 522 of the second transmission / reception unit 52 are combined, and the reception characteristics of the first reception unit 518 of the first transmission / reception unit 51 and the first 2 The reception characteristic of the second receiving unit 528 of the transmitting / receiving unit 52 is matched.
　そのため、実施の形態１においては、自送受信部内の特性の測定と他の送受信部間の特性の測定を行う。先ず、自送受信部内の特性の測定について説明する。 Therefore, in the first embodiment, the characteristics within the own transmitting / receiving unit and the characteristics between other transmitting / receiving units are measured. First, measurement of characteristics in the own transmission / reception unit will be described.
　自送受信部内の特性の例として、第１送受信部５１を例に挙げて説明する。第１送受信部５１の特性を測定する際には、校正用信号Ｓをデジタルアナログ変換部５１１に入力する。校正用信号Ｓは、デジタルアナログ変換部５１１→第１送信部５１２→カプラ５１４→カプラ５１３→カプラ５１７→カプラ５１６→第１受信部５１８→アナログデジタル変換部５１９のように流れる。そして、アナログデジタル変換部５１９から出力した校正用信号Ｓは、図１に示す校正装置１０の測定部１１に入力する。測定部１１が、校正用信号Ｓのレベルを測定する。 As an example of the characteristics in the own transmission / reception unit, the first transmission / reception unit 51 will be described as an example. When measuring the characteristics of the first transmission / reception unit 51, the calibration signal S is input to the digital / analog conversion unit 511. The calibration signal S flows as follows: digital-analog converter 511 → first transmitter 512 → coupler 514 → coupler 513 → coupler 517 → coupler 516 → first receiver 518 → analog / digital converter 519. The calibration signal S output from the analog-digital conversion unit 519 is input to the measurement unit 11 of the calibration apparatus 10 illustrated in FIG. The measuring unit 11 measures the level of the calibration signal S.
　これにより、第１送信部５１２と第１受信部５１８を通して測定した特性の結果が得られる。尚、カプラ５１３とカプラ５１７をハイブリッドカプラと称することもある。 Thereby, the result of the characteristic measured through the 1st transmission part 512 and the 1st reception part 518 is obtained. Note that the coupler 513 and the coupler 517 may be referred to as a hybrid coupler.
　尚、説明においては、送信部の送信特性「ＴＸ＿（ブロック名）」と受信部の受信特性「ＲＸ＿（ブロック名）」の特性を「ＴＸ＿（ブロック名）　×　ＲＸ＿（ブロック名）」と称する。例えば、第１送受信部５１内の特性は、「ＴＸ＿５１　×　ＲＸ＿５１」と称する。 In the description, the transmission characteristic “TX_ (block name)” of the transmission unit and the reception characteristic “RX_ (block name)” of the reception unit are referred to as “TX_ (block name) × RX_ (block name)”. For example, the characteristic in the 1st transmission / reception part 51 is called "TX_51 * RX_51."
　無線通信装置５０の第２送受信部５２の特性の測定も、第１送受信部５１と同様にして行うことができる。具体的には、測定部１１は、第２送信部５２２に入力し、第２受信部５２８から出力した第２校正用信号Ｓ２のレベルを測定する。これにより、第２送受信部５２の特性として、「ＴＸ＿５２　×　ＲＸ＿５２」を得る。 Measurement of the characteristics of the second transmission / reception unit 52 of the wireless communication device 50 can also be performed in the same manner as the first transmission / reception unit 51. Specifically, the measurement unit 11 inputs the second transmission unit 522 and measures the level of the second calibration signal S2 output from the second reception unit 528. Thereby, “TX_52 × RX_52” is obtained as a characteristic of the second transmitting / receiving unit 52.
　無線通信装置５０の第３送受信部５３及び第４送受信部５４の各自送受信部内の特性の測定も、第１送受信部５１と同様にして行うことができる。そして、自送受信部内の特性として、「ＴＸ＿５１　×　ＲＸ＿５１」、「ＴＸ＿５２　×　ＲＸ＿５２」、「ＴＸ＿５３　×　ＲＸ＿５３」及び「ＴＸ＿５４　×　ＲＸ＿５４」を得る。 The measurement of the characteristics in the respective transmitting / receiving units of the third transmitting / receiving unit 53 and the fourth transmitting / receiving unit 54 of the wireless communication device 50 can be performed in the same manner as the first transmitting / receiving unit 51. Then, “TX_51 × RX_51”, “TX_52 × RX_52”, “TX_53 × RX_53”, and “TX_54 × RX_54” are obtained as characteristics in the own transmitting / receiving unit.
　次に、他の送受信部間の特性の測定について説明する。
　図４は、他の送受信部間の特性を測定する際の接続を例示するブロック図である。
　図４では、送受信部が４つの例を示す。 Next, measurement of characteristics between other transmission / reception units will be described.
FIG. 4 is a block diagram illustrating a connection when measuring characteristics between other transmission / reception units.
FIG. 4 shows an example in which there are four transmission / reception units.
　図４に示すように、第１送信部５１２と第２受信部５２８を通した際の特性を測定するためには、校正用信号出力部５１ｂと校正用信号入力部５２ａを第１配線Ｃｎ１で接続する。第２送信部５２２と第３受信部５３８を通した際の特性を測定するためには、校正用信号出力部５２ｂと校正用信号入力部５３ａを第２配線Ｃｎ２で接続する。第３送信部５３２と第４受信部５４８を通した際の特性を測定するためには、校正用信号出力部５３ｂと校正用信号入力部５４ａを第３配線Ｃｎ３で接続する。 As shown in FIG. 4, in order to measure the characteristics when passing through the first transmitter 512 and the second receiver 528, the calibration signal output unit 51b and the calibration signal input unit 52a are connected by the first wiring Cn1. Connecting. In order to measure the characteristics when passing through the second transmitter 522 and the third receiver 538, the calibration signal output unit 52b and the calibration signal input unit 53a are connected by the second wiring Cn2. In order to measure the characteristics when passing through the third transmitter 532 and the fourth receiver 548, the calibration signal output unit 53b and the calibration signal input unit 54a are connected by the third wiring Cn3.
　他の送受信部間の特性の測定として、第１送信部５１２と第２受信部５２８を通した際の特性を測定することを例に挙げて説明する。 As an example of measuring the characteristics between other transmission / reception units, measuring the characteristics when passing through the first transmission unit 512 and the second reception unit 528 will be described.
　この場合、第１送受信部５１の校正用信号出力部５１ｂと第２送受信部５２の校正用信号入力部５２ａを第１配線Ｃｎ１で接続する。そして、第１校正用信号Ｓ１をデジタルアナログ変換部５１１に入力する。第１校正用信号Ｓ１は、デジタルアナログ変換部５１１→第１送信部５１２→カプラ５１４→カプラ５１３→校正用信号出力部５１ｂ→校正用信号入力部５２ａ→カプラ５２７→カプラ５２６→第２受信部５２８→アナログデジタル変換部５２９のように流れる。そして、アナログデジタル変換部５２９から出力した第１校正用信号Ｓ１は、図１に示す校正装置１０の測定部１１に入力する。測定部１１が、第１校正用信号Ｓ１のレベルを測定する。 In this case, the calibration signal output unit 51b of the first transmission / reception unit 51 and the calibration signal input unit 52a of the second transmission / reception unit 52 are connected by the first wiring Cn1. Then, the first calibration signal S1 is input to the digital-analog converter 511. The first calibration signal S1 is a digital / analog conversion unit 511 → first transmission unit 512 → coupler 514 → coupler 513 → calibration signal output unit 51b → calibration signal input unit 52a → coupler 527 → coupler 526 → second reception unit. 528 → Analog / digital conversion unit 529 The first calibration signal S1 output from the analog-digital conversion unit 529 is input to the measurement unit 11 of the calibration apparatus 10 illustrated in FIG. The measuring unit 11 measures the level of the first calibration signal S1.
　これにより、第１送信部５１２と第２受信部５２８を通して測定した特性の結果が得られる。すなわち、「ＴＸ＿５１　×　ＲＸ＿５２」が得られる。 Thereby, the result of the characteristic measured through the 1st transmission part 512 and the 2nd reception part 528 is obtained. That is, “TX_51 × RX_52” is obtained.
　また、図４に示す第２配線Ｃｎ２で測定を行うことにより、特性「ＴＸ＿５２　×　ＲＸ＿５３を得ることができる。また、図４に示す第３配線Ｃｎ３で測定を行うことにより、特性「ＴＸ＿５３　×　ＲＸ＿５４」を得ることができる。 Further, by measuring with the second wiring Cn2 shown in FIG. 4, the characteristic “TX_52 × RX_53 can be obtained. By measuring with the third wiring Cn3 shown in FIG. 4, the characteristic“ TX_53 × RX_54 ”is obtained. Can be obtained.
　次に、特性「ＴＸ＿５１　×　ＲＸ＿５１」、「ＴＸ＿５２　×　ＲＸ＿５２」、「ＴＸ＿５３　×　ＲＸ＿５３」、「ＴＸ＿５４　×　ＲＸ＿５４」、「ＴＸ＿５１　×　ＲＸ＿５２」、「ＴＸ＿５２　×　ＲＸ＿５３」及び「ＴＸ＿５３　×　ＲＸ＿５４」に基づいて、送受信部の送信特性及び受信特性を校正することについて説明する。 Next, based on the characteristics “TX_51 × RX_51”, “TX_52 × RX_52”, “TX_53 × RX_53”, “TX_54 × RX_54”, “TX_51 × RX_52”, “TX_52 × RX_53” and “TX_53 × RX_54”. The calibration of the transmission characteristics and reception characteristics of the unit will be described.
　送信特性の校正について説明する。
　図５は、実施の形態１に係る校正装置と無線通信装置を例示するブロック図である。 The transmission characteristic calibration will be described.
FIG. 5 is a block diagram illustrating the calibration device and the wireless communication device according to the first embodiment.
　特性「ＴＸ＿５２　×　ＲＸ＿５２」と特性「ＴＸ＿５１　×　ＲＸ＿５２」は、特性「ＲＸ＿５２」が共通である。そこで、図５に示すように、特性「ＴＸ＿５１　×　ＲＸ＿５２」を測定するための第１校正用信号Ｓ１と、特性「ＴＸ＿５２　×　ＲＸ＿５２」を測定するための第２校正用信号Ｓ２を校正装置１０の測定部１１に入力する。そして、制御部１２が、第１校正用信号Ｓ１と第２校正用信号Ｓ２を比較し、第１校正用信号Ｓ１のレベルと第２校正用信号Ｓ２のレベルとの差が第１所定値Ｌ１以下となるように第２送信部５２２の利得を制御する。 The characteristic “TX_52 × RX_52” and the characteristic “TX_51 × RX_52” have the same characteristic “RX_52”. Therefore, as shown in FIG. 5, the first calibration signal S1 for measuring the characteristic “TX_51 × RX_52” and the second calibration signal S2 for measuring the characteristic “TX_52 × RX_52” are Input to the measurement unit 11. Then, the control unit 12 compares the first calibration signal S1 and the second calibration signal S2, and the difference between the level of the first calibration signal S1 and the level of the second calibration signal S2 is the first predetermined value L1. The gain of the second transmission unit 522 is controlled to be as follows.
　これにより、第２送受信部５２の送信特性「ＴＸ＿５２」を、第１送受信部５１の送信特性「ＴＸ＿５１」に合わせることができる。尚、制御の際に、受信特性「ＲＸ＿５２」は共通なので、受信特性「ＲＸ＿５２」の特性を知らなくてもよい。 Thereby, the transmission characteristic “TX_52” of the second transmission / reception unit 52 can be matched with the transmission characteristic “TX_51” of the first transmission / reception unit 51. During the control, the reception characteristic “RX_52” is common, and thus the reception characteristic “RX_52” need not be known.
　尚、制御部１２は、第２送信部５２２が有する第２送信増幅器の動作バイアスを変更して第２送信部５２２の利得を制御してもよい。 Note that the control unit 12 may control the gain of the second transmission unit 522 by changing the operation bias of the second transmission amplifier included in the second transmission unit 522.
　また、制御部１２は、第２送信部５２２の有する第２送信減衰器の減衰値を変更して第２送信部５２２の利得を制御してもよい。 Further, the control unit 12 may control the gain of the second transmission unit 522 by changing the attenuation value of the second transmission attenuator included in the second transmission unit 522.
　また、特性「ＴＸ＿５３　×　ＲＸ＿５３」と特性「ＴＸ＿５２　×　ＲＸ＿５３」は、「ＲＸ＿５３」が共通である。よって、次に、特性「ＴＸ＿５３　×　ＲＸ＿５３」と特性「ＴＸ＿５２　×　ＲＸ＿５３」を比較して、第３送信部５３２を制御することで、第３送信部５３２の送信特性「ＴＸ＿５３」を、第２送信部５２２の送信特性「ＴＸ＿５２」に合わせることができる。 Also, the characteristic “TX_53 × RX_53” and the characteristic “TX_52 × RX_53” are common to “RX_53”. Therefore, next, the characteristic “TX_53 × RX_53” and the characteristic “TX_52 × RX_53” are compared and the third transmission unit 532 is controlled, so that the transmission characteristic “TX_53” of the third transmission unit 532 is changed to the second transmission. The transmission characteristic “TX_52” of the unit 522 can be matched.
　また、特性「ＴＸ＿５４　×　ＲＸ＿５４」と特性「ＴＸ＿５３　×　ＲＸ＿５４」を比較して、第４送信部５４２を制御することで、第４送信部５４２の送信特性「ＴＸ＿５４」を、第３送信部５３２の送信特性「ＴＸ＿５３」に合わせることができる。 Also, the characteristic “TX_54 × RX_54” and the characteristic “TX_53 × RX_54” are compared, and the fourth transmission unit 542 is controlled, so that the transmission characteristic “TX_54” of the fourth transmission unit 542 is changed to the third transmission unit 532. The transmission characteristic can be adjusted to “TX_53”.
　このようにして、第２送信部５２２の送信特性「ＴＸ＿５２」、第３送信部５３２の送信特性「ＴＸ＿５３」、第４送信部５４２の送信特性「ＴＸ＿５４」を、第１送信部５１２の送信特性「ＴＸ＿５１」に合わせることができる。 In this way, the transmission characteristic “TX_52” of the second transmission unit 522, the transmission characteristic “TX_53” of the third transmission unit 532, and the transmission characteristic “TX_54” of the fourth transmission unit 542 are changed to the transmission characteristic of the first transmission unit 512. It can be adjusted to “TX — 51”.
　受信特性の校正について説明する。 Explanation of calibration of reception characteristics.
　特性「ＴＸ＿５１　×　ＲＸ＿５１と特性「ＴＸ＿５１　×　ＲＸ＿５２」は、特性「ＴＸ＿５１」が共通である。そこで、図５に示すように、特性「ＴＸ＿５１　×　ＲＸ＿５２」を測定するための第１校正用信号Ｓ１と、特性「ＴＸ＿５１　×　ＲＸ＿５１」を測定するための第３校正用信号Ｓ３を校正装置１０の測定部１１に入力する。すなわち、第１送信部５１２に入力し第２受信部５２８から出力した第１校正用信号Ｓ１と、第１送信部５１２に入力し第１受信部５１８から出力した第３校正用信号Ｓ３を測定部１１に入力する。そして、制御部１２が、第１校正用信号Ｓ１と第３校正用信号Ｓ３を比較し、第１校正用信号Ｓ１のレベルと第３校正用信号Ｓ３のレベルとの差が第２所定値Ｌ２以下となるように第２受信部５２８の利得を制御する。 The characteristic “TX_51 × RX_51” and the characteristic “TX_51 × RX_52” have the same characteristic “TX_51”. Therefore, as shown in FIG. 5, the first calibration signal S1 for measuring the characteristic “TX_51 × RX_52” and the third calibration signal S3 for measuring the characteristic “TX_51 × RX_51” Input to the measurement unit 11. That is, the first calibration signal S1 input to the first transmission unit 512 and output from the second reception unit 528, and the third calibration signal S3 input to the first transmission unit 512 and output from the first reception unit 518 are measured. Input to section 11. Then, the control unit 12 compares the first calibration signal S1 and the third calibration signal S3, and the difference between the level of the first calibration signal S1 and the level of the third calibration signal S3 is the second predetermined value L2. The gain of the second receiving unit 528 is controlled so as to be as follows.
　これにより、第２送受信部５２の受信特性「ＲＸ＿５２」を第１送受信部５１の受信特性「ＲＸ＿５１」に合わせることができる。尚、制御の際に、送信特性「ＴＸ＿５１」は共通なので、送信特性「ＴＸ＿５１」の特性を知らなくてもよい。 Thereby, the reception characteristic “RX_52” of the second transmission / reception unit 52 can be matched with the reception characteristic “RX_51” of the first transmission / reception unit 51. Note that, since the transmission characteristic “TX_51” is common during the control, it is not necessary to know the characteristic of the transmission characteristic “TX_51”.
　尚、制御部１２は、第２受信部５２８が有する第２受信増幅器の動作バイアスを変更して第２受信部５２８の利得を制御してもよい。 Note that the control unit 12 may control the gain of the second reception unit 528 by changing the operation bias of the second reception amplifier included in the second reception unit 528.
　また、制御部１２は、第２受信部５２８の有する第２受信減衰器の減衰値を変更して第２受信部５２８の利得を制御してもよい。 Further, the control unit 12 may control the gain of the second reception unit 528 by changing the attenuation value of the second reception attenuator included in the second reception unit 528.
　次に、特性「ＴＸ＿５２　×　ＲＸ＿５２」と特性「ＴＸ＿５２　×　ＲＸ＿５３」を比較して、第３受信部５３８を制御することで、第３受信部５３８の受信特性「ＲＸ＿５３」を第２受信部５２８の受信特性「ＲＸ＿５２」に合わせることができる。 Next, the characteristic “TX_52 × RX_52” and the characteristic “TX_52 × RX_53” are compared, and the third reception unit 538 is controlled, so that the reception characteristic “RX_53” of the third reception unit 538 is changed to that of the second reception unit 528. It can be matched with the reception characteristic “RX — 52”.
　また、特性「ＴＸ＿５３　×　ＲＸ＿５３」と「ＴＸ＿５３　×　ＲＸ＿５４」を比較して、第４受信部５４８を制御することで、第４受信部５４８の受信特性「ＲＸ＿５４」を第３受信部５３８の受信特性「ＲＸ＿５３」に合わせることができる。 Further, by comparing the characteristics “TX_53 × RX_53” and “TX_53 × RX_54” and controlling the fourth receiving unit 548, the receiving characteristic “RX_54” of the fourth receiving unit 548 is changed to the receiving characteristic of the third receiving unit 538. It can be set to “RX_53”.
　このようにして、受信特性「ＲＸ＿５２」と受信特性「ＲＸ＿５３」と受信特性「ＲＸ＿５４」を受信特性「ＲＸ＿５１」に合わせることができる。 In this way, the reception characteristic “RX_52”, the reception characteristic “RX_53”, and the reception characteristic “RX_54” can be matched with the reception characteristic “RX_51”.
　この例では、第１送受信部５１を基準にしたが、他の送受信部を基準にしてもよい。例えば、第１送受信部５１、第３送受信部５３及び第４送受信部５４のそれぞれを、第２送受信部５２に合わせてもよい。いずれの送受信部を基準とするかは、無線通信装置５０を構成する部位の配置や温度条件等に基づいて決定する。 In this example, the first transmission / reception unit 51 is used as a reference, but another transmission / reception unit may be used as a reference. For example, each of the first transmission / reception unit 51, the third transmission / reception unit 53, and the fourth transmission / reception unit 54 may be matched with the second transmission / reception unit 52. Which transmission / reception unit is used as a reference is determined based on the arrangement of the parts constituting the wireless communication device 50, temperature conditions, and the like.
　実施の形態１では、アレイアンテナと、それぞれのアンテナごとに送受信部を備えた無線通信装置５０の特性の校正を、自送受信部とそれに隣接する送受信部を使用して行う。このとき、校正装置１０は、無線通信装置５０のカプラを使用して校正用信号Ｓを取得するので、スイッチ等により校正用信号Ｓの方路を切替える必要がない。また、このとき、校正装置１０は、校正用信号ＳのＯＮ／ＯＦＦだけで、校正用信号Ｓを測定することができる。 In the first embodiment, the calibration of the characteristics of the array antenna and the wireless communication device 50 including the transmission / reception unit for each antenna is performed using the own transmission / reception unit and the transmission / reception unit adjacent thereto. At this time, since the calibration device 10 acquires the calibration signal S using the coupler of the wireless communication device 50, there is no need to switch the path of the calibration signal S by a switch or the like. At this time, the calibration apparatus 10 can measure the calibration signal S only by turning on / off the calibration signal S.
　その結果、アレイアンテナの各素子に接続された複数の送受信部を有する無線通信装置を簡易に校正することが可能な校正装置、無線通信装置、システム、方法及びプログラムを提供することができる。 As a result, it is possible to provide a calibration device, a wireless communication device, a system, a method, and a program capable of easily calibrating a wireless communication device having a plurality of transmission / reception units connected to each element of the array antenna.
　また、実施の形態１では、無線通信装置５０の校正の際に、隣接する各送受信部の校正用信号入力部と校正用信号出力部を接続する。校正用信号入力部と校正用信号出力部との間の無線配線長はほぼ一定なので、測定誤差を少なくすることができる。 In the first embodiment, when the radio communication device 50 is calibrated, the calibration signal input unit and the calibration signal output unit of each adjacent transmitting / receiving unit are connected. Since the wireless wiring length between the calibration signal input unit and the calibration signal output unit is substantially constant, the measurement error can be reduced.
　また、実施の形態１では、無線通信装置５０の送受信部が増加した場合でも、隣接する各送受信部の校正用信号入力部と校正用信号出力部を接続するだけでよい。また、隣接する各送受信部の校正用信号入力部と校正用信号出力部を接続するので、その配線を容易に行うことができる。また、配線を重ならないようにできるので、配線レイアウトに困難がなく省スペース化することができる。 In the first embodiment, even when the number of transmitting / receiving units of the wireless communication device 50 is increased, it is only necessary to connect the calibration signal input unit and the calibration signal output unit of each adjacent transmitting / receiving unit. Further, since the calibration signal input unit and the calibration signal output unit of each adjacent transmission / reception unit are connected, the wiring can be easily performed. Further, since the wirings can be prevented from overlapping, the wiring layout is not difficult and the space can be saved.
　また、実施の形態１では、各送受信部の校正用信号入力部と校正用信号出力部をディジーチェーンで接続することで、容易に送受信部を増加することができる。また、チェーンの最初と最後を接続する必要がないので自由度が高い。 Further, in the first embodiment, the number of transmitting / receiving units can be easily increased by connecting the calibration signal input units and the calibration signal output units of the respective transmitting / receiving units with a daisy chain. In addition, since there is no need to connect the beginning and end of the chain, the degree of freedom is high.
　また、実施の形態１では、校正装置が複数の送受信部を時間的に並列で校正を行う。これにより、送受信部を増加した場合の校正時間の短縮の効果が大きい。自送受信部内の測定と他送受信部間の測定との２つのタイムフレームで全ての測定を完了できる。送受信部の数が増加する程に大きな効果を得ることができる。 In the first embodiment, the calibration apparatus calibrates a plurality of transmission / reception units in parallel in time. Thereby, the effect of shortening the calibration time when the number of transmission / reception units is increased is great. All the measurements can be completed in two time frames of the measurement in the own transmission / reception unit and the measurement between other transmission / reception units. A greater effect can be obtained as the number of transmission / reception units increases.
　また、この例では、送受信部が４つの例を示したがこれには限定されない。送受信部が４つ以外の場合でも実施の形態１を適用してもよい。 In this example, four examples of the transmission / reception unit are shown, but the present invention is not limited to this. The first embodiment may be applied even when there are other than four transmission / reception units.
　［比較例］
　図６は、比較例に係る校正装置と無線通信装置を例示するブロック図である。 [Comparative example]
FIG. 6 is a block diagram illustrating a calibration device and a wireless communication device according to a comparative example.
　図６に示すように、比較例に係る校正装置４０は、無線通信装置８０のそれぞれの校正用信号入出力部８１ａｂ～８４ａｂから校正用信号Ｓを入力し、送受信部８１～８４毎に校正を行う。送受信部８１～８４のそれぞれは異なる位置に配置される。このため、校正用信号配線部４５において、校正用信号入出力部８１ａｂ～８４ａｂのそれぞれと校正装置４０との間の校正用信号Ｓの配線の長さは、一定にすることが難しい。このため、比較例においては、それぞれの校正用信号入出力部８１ａｂ～８４ａｂから校正装置４０までの配線の無線信号特性を別途測定し、その測定結果を加味して校正を行う。 As shown in FIG. 6, the calibration device 40 according to the comparative example inputs the calibration signal S from each of the calibration signal input / output units 81ab to 84ab of the wireless communication device 80, and performs calibration for each of the transmission / reception units 81 to 84. Do. The transmission / reception units 81 to 84 are arranged at different positions. Therefore, in the calibration signal wiring unit 45, it is difficult to make the length of the wiring of the calibration signal S between each of the calibration signal input / output units 81ab to 84ab and the calibration device 40 constant. For this reason, in the comparative example, the wireless signal characteristics of the wiring from the respective calibration signal input / output units 81ab to 84ab to the calibration device 40 are separately measured, and the calibration is performed in consideration of the measurement result.
　その結果、比較例においては、アレイアンテナの各素子に接続された複数の送受信部を有する無線通信装置を簡易に校正することは難しい。 As a result, in the comparative example, it is difficult to easily calibrate a wireless communication apparatus having a plurality of transmission / reception units connected to each element of the array antenna.
　また、比較例においては、無線通信装置８０の送受信部の数が増加する程、それぞれの送受信部８１～８４から校正装置４０までの配線の長さを一定にすることはさらに難しい。 In the comparative example, as the number of transmission / reception units of the wireless communication device 80 increases, it is more difficult to make the length of the wiring from each of the transmission / reception units 81 to 84 to the calibration device 40 constant.
　また、比較例においては、校正装置４０は、送受信部８１～８４を分波合成部４１により分波又は合成後、スイッチ４２により切替え、測定する時間を変えて送受信部８１～８４の特性を測定し校正する。例えば、送受信部８１を測定し校正した後に送受信部８２を測定し校正し、送受信部８２を測定し校正した後に送受信部８３を測定し校正する。これにより、比較例においては、校正の時間を短縮することは難しい。 Further, in the comparative example, the calibration device 40 measures the characteristics of the transmission / reception units 81 to 84 by switching the transmission / reception units 81 to 84 by the switch 42 after demultiplexing or synthesis by the demultiplexing synthesis unit 41 and changing the measurement time. Then calibrate. For example, the transmitter / receiver 81 is measured and calibrated, and then the transmitter / receiver 82 is measured and calibrated. After the transmitter / receiver 82 is measured and calibrated, the transmitter / receiver 83 is measured and calibrated. Thus, it is difficult to shorten the calibration time in the comparative example.
　［実施の形態２］
　実施の形態２においては、最初の送受信部と最後の送受信部を接続する。具体的には、図４に示す校正用信号出力部５４ｂと校正用信号入力部５１ａを接続し、第４送信部５４２と第１受信部５１８を通した際の特性を測定する。実施の形態１により、第２送受信部５２、第３送受信部５３及び第４送受信部５４の特性は、第１送受信部５１の特性に既に合わせてある。ここで、第４送信部５４２と第１受信部５１８を通した際の特性を測定することで、校正が正しく行われたか否かを確認することができる。 [Embodiment 2]
In the second embodiment, the first transmission / reception unit and the last transmission / reception unit are connected. Specifically, the calibration signal output unit 54b and the calibration signal input unit 51a shown in FIG. 4 are connected, and the characteristics when passing through the fourth transmission unit 542 and the first reception unit 518 are measured. According to the first embodiment, the characteristics of the second transmission / reception unit 52, the third transmission / reception unit 53, and the fourth transmission / reception unit 54 are already matched with the characteristics of the first transmission / reception unit 51. Here, by measuring the characteristics when passing through the fourth transmitter 542 and the first receiver 518, it can be confirmed whether or not the calibration has been performed correctly.
　また、予備用の校正用信号入力部と予備用の校正用信号出力部を設けてもよい。これにより、任意の送受信部が故障した場合でも、予備用の校正用信号入力部と予備用の校正用信号出力部を使用して、無線通信装置５０の校正を行うことができる。 Also, a spare calibration signal input unit and a spare calibration signal output unit may be provided. As a result, even when an arbitrary transmission / reception unit fails, the radio communication device 50 can be calibrated using the spare calibration signal input unit and the spare calibration signal output unit.
　また、上記の実施の形態では、本発明をハードウェアの構成として説明したが、本発明はこれに限定されるものではない。本発明は、各構成要素の処理を、ＣＰＵ（Central Processing Unit）にコンピュータプログラムを実行させることにより実現することも可能である。 In the above embodiment, the present invention has been described as a hardware configuration, but the present invention is not limited to this. The present invention can also realize the processing of each component by causing a CPU (Central Processing Unit) to execute a computer program.
　上記の実施の形態において、プログラムは、様々なタイプの非一時的なコンピュータ可読媒体（non-transitory computer readable medium）を用いて格納され、コンピュータに供給することができる。非一時的なコンピュータ可読媒体は、様々なタイプの実態のある記録媒体(tangible storage medium)を含む。非一時的なコンピュータ可読媒体の例は、磁気記録媒体（例えばフレキシブルディスク、磁気テープ、ハードディスクドライブ）、光磁気記録媒体（例えば光磁気ディスク）、ＣＤ－ＲＯＭ（Read Only Memory）、ＣＤ－Ｒ、ＣＤ－Ｒ／Ｗ、半導体メモリ（例えば、マスクＲＯＭ、ＰＲＯＭ（Programmable ROM）、ＥＰＲＯＭ(Erasable PROM)）、フラッシュＲＯＭ、ＲＡＭ(Random Access Memory)を含む。また、プログラムは、様々なタイプの一時的なコンピュータ可読媒体（transitory computer readable medium）によってコンピュータに供給されてもよい。一時的なコンピュータ可読媒体の例は、電気信号、光信号、及び電磁波を含む。一時的なコンピュータ可読媒体は、電線及び光ファイバ等の有線通信路、又は無線通信路を介して、プログラムをコンピュータに供給できる。 In the above embodiment, the program can be stored using various types of non-transitory computer readable media and supplied to a computer. Non-transitory computer readable media include various types of tangible storage media. Examples of non-transitory computer-readable media include magnetic recording media (eg flexible disks, magnetic tapes, hard disk drives), magneto-optical recording media (eg magneto-optical discs), CD-ROMs (Read Only Memory), CD-Rs, CD-R / W, semiconductor memory (for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable ROM)), flash ROM, RAM (Random Access Memory) are included. The program may also be supplied to the computer by various types of temporary computer-readable media. Examples of transitory computer readable media include electrical signals, optical signals, and electromagnetic waves. The temporary computer-readable medium can supply the program to the computer via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.
　なお、本発明は上記実施の形態に限られたものではなく、趣旨を逸脱しない範囲で適宜変更することが可能である。 Note that the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the spirit of the present invention.
　以上、実施の形態を参照して本願発明を説明したが、本願発明は上記によって限定されるものではない。本願発明の構成や詳細には、発明のスコープ内で当業者が理解し得る様々な変更をすることができる。 The present invention has been described above with reference to the embodiment, but the present invention is not limited to the above. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the invention.
　この出願は、２０１７年３月２１日に出願された日本出願特願２０１７－０５３９４２を基礎とする優先権を主張し、その開示の全てをここに取り込む。 This application claims priority based on Japanese Patent Application No. 2017-053942 filed on March 21, 2017, the entire disclosure of which is incorporated herein.
　１…システム
　１０、４０…校正装置
　１１…測定部
　１２…制御部
　４１…分波合成部
　４２…スイッチ
　４３…デジタルアナログ変換部
　４４…アナログデジタル変換部
　４５…校正用信号配線部
　５０、８０…無線通信装置
　５０ａ…アレイアンテナ部
　５１、８１…第１送受信部
　５２、８２…第２送受信部
　５３、８３…第３送受信部
　５４、８４…第４送受信部
　５１１、５２１、５３１、５４１…デジタルアナログ変換部
　５１２、８１２…第１送信部
　５２２…第２送信部
　５３２…第３送信部
　５４２…第４送信部
　５１３、５２３、５３３、５４３…カプラ
　５１４、５２４、５３４、５４４、８１４…カプラ
　５１５、５２５、５３５、５４５…アレイアンテナ
　５１６、５２６、５３６、５４６…カプラ
　５１７、５２７、５３７、５４７…カプラ
　５１８、８１８…第１受信部
　５２８…第２受信部
　５３８…第３受信部
　５４８…第４受信部
　５１９、５２９、５３９、５４９…アナログデジタル変換部
　５１ａ…校正用信号入力部
　５１ｂ…校正用信号出力部
　５１ｃ、８１ｃ…送受信スイッチ
　８１ａｂ、８２ａｂ、８３ａｂ、８４ａｂ…校正用信号入出力部
　Ｃｎ１…第１配線
　Ｃｎ２…第２配線
　Ｃｎ３…第３配線
　ｐ１、ｐ２、ｐ３…ポート
　Ｌ１…第１所定値
　Ｌ２…第２所定値
　Ｓ…校正用信号
　Ｓ１…第１校正用信号
　Ｓ２…第２校正用信号 DESCRIPTION OF SYMBOLS 1 ... System 10, 40 ... Calibration apparatus 11 ... Measurement part 12 ... Control part 41 ... Demultiplexing synthesis part 42 ... Switch 43 ... Digital-analog conversion part 44 ... Analog-digital conversion part 45 ... Calibration signal wiring part 50, 80 ... Wireless Communication device 50a ... Array antenna unit 51, 81 ... First transmission / reception unit 52, 82 ... Second transmission / reception unit 53, 83 ... Third transmission / reception unit 54, 84 ... Fourth transmission / reception unit 511, 521, 531, 541 ... Digital- analog conversion Units 512, 812 ... First transmission unit 522 ... Second transmission unit 532 ... Third transmission unit 542 ... Fourth transmission unit 513, 523, 533, 543 ... Couplers 514, 524, 534, 544, 814 ... Couplers 515, 525 535, 545 ... Array antenna 516, 526, 536, 546 ... Coupler 517, 527, 537, 547 ... Coupler 5 18, 818... First receiving unit 528. Second receiving unit 538. Third receiving unit 548. Fourth receiving unit 519, 529, 539, 549... Analog to digital converting unit 51 a .. Calibration signal input unit 51 b. Output unit 51c, 81c ... Transmission / reception switch 81ab, 82ab, 83ab, 84ab ... Calibration signal input / output unit Cn1 ... First wiring Cn2 ... Second wiring Cn3 ... Third wiring p1, p2, p3 ... Port L1 ... First predetermined value L2 ... second predetermined value S ... calibration signal S1 ... first calibration signal S2 ... second calibration signal

Claims (10)

  1. 　送信信号を送信する無線通信装置の第１送信手段に入力し受信信号を受信する前記無線通信装置の第２受信手段から出力した第１校正用信号のレベルと、前記送信信号を送信する前記無線通信装置の第２送信手段に入力し前記第２受信手段から出力した第２校正用信号のレベルと、を測定する測定手段と、
    　前記第１校正用信号のレベルと前記第２校正用信号のレベルとの差が第１所定値以下となるように前記第２送信手段の利得を制御する制御手段と、
    　を備える校正装置。     The level of the first calibration signal output from the second receiving means of the wireless communication apparatus that receives the received signal by inputting to the first transmitting means of the wireless communication apparatus that transmits the transmission signal, and the wireless that transmits the transmission signal Measuring means for measuring the level of the second calibration signal input to the second transmitting means of the communication device and output from the second receiving means;
    Control means for controlling the gain of the second transmission means so that the difference between the level of the first calibration signal and the level of the second calibration signal is not more than a first predetermined value;
    A calibration device comprising:
  2. 　前記制御手段は、前記第２送信手段が有する第２送信増幅器の動作バイアスを変更して前記第２送信手段の利得を制御する、
    　請求項１に記載の校正装置。     The control means controls the gain of the second transmission means by changing the operation bias of the second transmission amplifier of the second transmission means;
    The calibration device according to claim 1.
  3. 　前記制御手段は、前記第２送信手段の有する第２送信減衰器の減衰値を変更して前記第２送信手段の利得を制御する、
    　請求項１又は２に記載の校正装置。     The control means controls the gain of the second transmission means by changing the attenuation value of the second transmission attenuator of the second transmission means;
    The calibration apparatus according to claim 1 or 2.
  4. 　前記測定手段は、前記第１送信手段に入力し前記受信信号を受信する前記無線通信装置の第１受信手段から出力した第３校正用信号のレベルを測定し、
    　前記制御手段は、前記第１校正用信号のレベルと前記第３校正用信号のレベルとの差が第２所定値以下となるように前記第２受信手段の利得を制御する、
    　請求項１乃至３のいずれか１つに記載の校正装置。     The measuring means measures the level of the third calibration signal output from the first receiving means of the wireless communication apparatus that receives the received signal that is input to the first transmitting means;
    The control means controls the gain of the second receiving means so that a difference between the level of the first calibration signal and the level of the third calibration signal is equal to or less than a second predetermined value;
    The calibration device according to any one of claims 1 to 3.
  5. 　前記制御手段は、前記第２受信手段が有する第２受信増幅器の動作バイアスを変更して前記第２受信手段の利得を制御する、
    　請求項４に記載の校正装置。     The control means controls the gain of the second receiving means by changing the operating bias of the second receiving amplifier of the second receiving means;
    The calibration device according to claim 4.
  6. 　前記制御手段は、前記第２受信手段の有する第２受信減衰器の減衰値を変更して前記第２受信手段の利得を制御する、
    　請求項４又は５に記載の校正装置。     The control means controls the gain of the second receiving means by changing the attenuation value of the second receiving attenuator of the second receiving means;
    The calibration device according to claim 4 or 5.
  7. 　送信信号を送信する第１送信手段と第２送信手段と、
    　受信信号を受信する第１受信手段と第２受信手段と、
    　第１配線と、
    　前記第１送信手段の出力と前記第１配線の一端を接続する第１カプラと、
    　前記第１配線の他端と前記第２受信手段の入力を接続する第２カプラと、
    　を備え、
    　前記第２カプラは、前記第２送信手段の出力と前記第２受信手段の入力を接続する、
    　無線通信装置。     First transmission means and second transmission means for transmitting a transmission signal;
    First receiving means and second receiving means for receiving a received signal;
    A first wiring;
    A first coupler connecting the output of the first transmission means and one end of the first wiring;
    A second coupler connecting the other end of the first wiring and the input of the second receiving means;
    With
    The second coupler connects the output of the second transmitting means and the input of the second receiving means;
    Wireless communication device.
  8. 　送信信号を送信する第１送信手段と第２送信手段と、受信信号を受信する第１受信手段と第２受信手段と、を有する無線通信装置と、前記無線通信装置を校正する校正装置とを備え、
    　前記無線通信装置は、
    　第１配線と、
    　前記第１送信手段の出力と前記第１配線の一端を接続する第１カプラと、
    　前記第１配線の他端と前記第２受信手段の入力を接続する第２カプラと、を有し、
    　前記校正装置は、
    　前記第１送信手段に入力し前記第２受信手段から出力した第１校正用信号のレベルと、前記第２送信手段に入力し前記第２受信手段から出力した第２校正用信号のレベルと、を測定する測定手段と、
    　前記第１校正用信号のレベルと前記第２校正用信号のレベルとの差が第１所定値以下となるように前記第２送信手段の利得を制御する制御手段と、を有する、
    　システム。     A wireless communication apparatus having first transmission means and second transmission means for transmitting a transmission signal; first reception means for receiving a reception signal; and second reception means; and a calibration apparatus for calibrating the wireless communication apparatus. Prepared,
    The wireless communication device
    A first wiring;
    A first coupler connecting the output of the first transmission means and one end of the first wiring;
    A second coupler for connecting the other end of the first wiring and the input of the second receiving means;
    The calibration device is
    A level of a first calibration signal input to the first transmission means and output from the second reception means; a level of a second calibration signal input to the second transmission means and output from the second reception means; Measuring means for measuring,
    Control means for controlling the gain of the second transmission means so that the difference between the level of the first calibration signal and the level of the second calibration signal is equal to or less than a first predetermined value;
    system.
  9. 　送信信号を送信する無線通信装置の第１送信手段に入力し受信信号を受信する前記無線通信装置の第２受信手段から出力した第１校正用信号のレベルと、前記送信信号を送信する前記無線通信装置の第２送信手段に入力し前記第２受信手段から出力した第２校正用信号のレベルと、を測定するステップと、
    　前記第１校正用信号のレベルと前記第２校正用信号のレベルとの差が第１所定値以下となるように前記第２送信手段の利得を制御するステップと、
    　を備える方法。     The level of the first calibration signal output from the second receiving means of the wireless communication apparatus that receives the received signal by inputting to the first transmitting means of the wireless communication apparatus that transmits the transmission signal, and the wireless that transmits the transmission signal Measuring the level of the second calibration signal input to the second transmission means of the communication device and output from the second reception means;
    Controlling the gain of the second transmission means so that the difference between the level of the first calibration signal and the level of the second calibration signal is not more than a first predetermined value;
    A method comprising:
  10. 　送信信号を送信する無線通信装置の第１送信手段に入力し受信信号を受信する前記無線通信装置の第２受信手段から出力した第１校正用信号のレベルと、前記送信信号を送信する前記無線通信装置の第２送信手段に入力し前記第２受信手段から出力した第２校正用信号のレベルと、を測定するステップと、
    　前記第１校正用信号のレベルと前記第２校正用信号のレベルとの差が第１所定値以下となるように前記第２送信手段の利得を制御するステップと、
    　をコンピュータに実行させるプログラムが格納される非一時的なコンピュータ可読媒体。     The level of the first calibration signal output from the second receiving means of the wireless communication apparatus that receives the received signal by inputting to the first transmitting means of the wireless communication apparatus that transmits the transmission signal, and the wireless that transmits the transmission signal Measuring the level of the second calibration signal input to the second transmission means of the communication device and output from the second reception means;
    Controlling the gain of the second transmission means so that the difference between the level of the first calibration signal and the level of the second calibration signal is not more than a first predetermined value;
    A non-transitory computer-readable medium in which a program for causing a computer to execute is stored.
PCT/JP2018/009835 2017-03-21 2018-03-14 Calibration device, wireless communication device, system, method, and non-transitory computer-readable medium WO2018173866A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-053942 2017-03-21
JP2017053942 2017-03-21

Publications (1)

Publication Number Publication Date
WO2018173866A1 true WO2018173866A1 (en) 2018-09-27

Family

ID=63584381

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/009835 WO2018173866A1 (en) 2017-03-21 2018-03-14 Calibration device, wireless communication device, system, method, and non-transitory computer-readable medium

Country Status (1)

Country Link
WO (1) WO2018173866A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000216618A (en) * 1998-11-19 2000-08-04 Nippon Telegr & Teleph Corp <Ntt> Adaptive array antenna system
JP2003218758A (en) * 2002-01-23 2003-07-31 Sony Corp Transmitting and receiving system
JP2008124534A (en) * 2006-11-08 2008-05-29 Nippon Telegr & Teleph Corp <Ntt> Directivity calibration circuit and method therefor
JP2016195331A (en) * 2015-03-31 2016-11-17 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． Array antenna transmission / reception device and calibration value calculation method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000216618A (en) * 1998-11-19 2000-08-04 Nippon Telegr & Teleph Corp <Ntt> Adaptive array antenna system
JP2003218758A (en) * 2002-01-23 2003-07-31 Sony Corp Transmitting and receiving system
JP2008124534A (en) * 2006-11-08 2008-05-29 Nippon Telegr & Teleph Corp <Ntt> Directivity calibration circuit and method therefor
JP2016195331A (en) * 2015-03-31 2016-11-17 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． Array antenna transmission / reception device and calibration value calculation method

Similar Documents

Publication Publication Date Title
US10396845B2 (en) Split microwave backhaul transceiver architecture with coaxial interconnect
US10574432B2 (en) Active array calibration
US8903374B2 (en) System for calibrating wireless communications devices
US6236839B1 (en) Method and apparatus for calibrating a smart antenna array
US11158940B2 (en) Self-calibration of antenna array system
US10128894B1 (en) Active antenna calibration
US10164334B2 (en) Antenna system calibration
EP3114781B1 (en) Antenna array self-calibration
US20160344483A1 (en) Antenna Calibration in Communications
US6809685B2 (en) Calibration apparatus and method for use with antenna array
US20120293362A1 (en) Phase-arrayed device and method for calibrating the phase-arrayed device
JP2005538621A (en) How to calibrate a smart antenna array in real-time
US6778147B2 (en) Antenna apparatus
US8885757B2 (en) Calibration of MIMO systems with radio distribution networks
KR20030030878A (en) Apparatus for Calibration in Adaptive Array Antenna System and Method Thereof
US20160205006A1 (en) Node unit capable of measuring delay and distributed antenna system including the same
WO2018173866A1 (en) Calibration device, wireless communication device, system, method, and non-transitory computer-readable medium
JP2017005514A (en) Radio equipment
JP2018157486A (en) Gate bias voltage control arrangement and gate bias voltage control method for transmitter receiver
JP6881667B2 (en) Wireless communication systems, wireless communication devices, wireless communication methods, and programs
JP6436847B2 (en) Frequency characteristic correction transmitter
WO2017208446A1 (en) Communication system
JP6659642B2 (en) Array antenna device and calibration method
US8195110B2 (en) Method for calibrating a transmission line, and corresponding computer software product, storage medium and calibration device
CN105634628A (en) TRX calibration device and method for determining signal characteristic differences caused by TRX

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18770631

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18770631

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载