WO2019127493A1 - 一种用于校正多个传输通道间偏差的装置及方法 - Google Patents

一种用于校正多个传输通道间偏差的装置及方法 Download PDF

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Publication number
WO2019127493A1
WO2019127493A1 PCT/CN2017/120207 CN2017120207W WO2019127493A1 WO 2019127493 A1 WO2019127493 A1 WO 2019127493A1 CN 2017120207 W CN2017120207 W CN 2017120207W WO 2019127493 A1 WO2019127493 A1 WO 2019127493A1
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WIPO (PCT)
Prior art keywords
signal
transmission channel
channel
vector
transmission
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PCT/CN2017/120207
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English (en)
French (fr)
Inventor
周沐
曹毅
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华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN202111213365.9A priority Critical patent/CN113949467B/zh
Priority to EP17936342.9A priority patent/EP3731430B1/en
Priority to CN201780098049.7A priority patent/CN111512568B/zh
Priority to CN202111214054.4A priority patent/CN114142952A/zh
Priority to EP21194986.2A priority patent/EP3982554B1/en
Priority to PCT/CN2017/120207 priority patent/WO2019127493A1/zh
Publication of WO2019127493A1 publication Critical patent/WO2019127493A1/zh
Priority to US16/911,925 priority patent/US10938489B2/en
Priority to US17/159,411 priority patent/US11456807B2/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/06Receivers
    • H04B1/10Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/12Neutralising, balancing, or compensation arrangements
    • H04B1/123Neutralising, balancing, or compensation arrangements using adaptive balancing or compensation means
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/20Monitoring; Testing of receivers
    • H04B17/21Monitoring; Testing of receivers for calibration; for correcting measurements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/38Transceivers, 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
    • H04B1/40Circuits
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/10Monitoring; Testing of transmitters
    • H04B17/11Monitoring; Testing of transmitters for calibration
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/10Monitoring; Testing of transmitters
    • H04B17/15Performance testing
    • H04B17/17Detection of non-compliance or faulty performance, e.g. response deviations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station

Definitions

  • the present application relates to the field of communications technologies, and in particular, to an apparatus and method for correcting deviations between multiple transmission channels.
  • Phased array is a phase-controlled electronic scanning array. It uses a large number of antenna elements arranged in an array. Each antenna unit can have independent switch control. By controlling the amplitude and phase of each antenna unit in the array, the electromagnetic wave radiation is modulated. Direction to synthesize a beam with a focused focus scan.
  • the millimeter wave is used as the carrier of the signal. Since the attenuation of the millimeter wave in the atmosphere is greatly increased compared with the low frequency electromagnetic wave, the orientation of the signal in the 5G communication system can be enhanced by introducing a large phased array technology. Effective omnidirectional radiated power, increasing system communication distance and system capacity. Large phased array technology uses a large number of signal transmission channels integrated into one or more chips. High-performance phased arrays require a high degree of uniformity of channels, but during production and use, deviations occur between these transmission channels, and the deviation of each channel needs to be calibrated.
  • a signal generator and a quadrature receiver are usually disposed inside the chip, a reference signal is generated by the signal generator, and is fed into the transmission channel through one end of the reference signal transmission line, and then transmitted.
  • the output signal of the channel and the reference signal generated by the signal generator are input to the quadrature receiver to obtain the phase of each transmission channel, and the difference between the phases of the two transmission channels minus the propagation delay caused by the estimated transmission line. , thereby obtaining the phase correction value between the final transmission channels.
  • the transmission line also has a deviation in production and use, and the accuracy of the transmission delay of the transmission line determined by the estimation method is low, so that the phase correction value corresponding to each transmission channel obtained has a large error, and further The accuracy of the transmission channel correction is low.
  • Embodiments of the present application provide an apparatus and method for correcting deviations between a plurality of transmission channels for improving accuracy of deviation correction between transmission channels.
  • an apparatus for correcting a deviation between a plurality of transmission channels comprising: a vector detection unit, configured to: when the first signal is fed at the first end, according to the first feedback of the first transmission channel Transmitting a first signal vector, and detecting a second signal vector according to a second feedback signal of the second transmission channel; the vector detecting unit is further configured to: when the second signal is fed at the second end, according to the first transmission channel The third feedback signal detects the third signal vector, and detects the fourth signal vector according to the fourth feedback signal of the second transmission channel, where the second feedback signal and the third feedback signal are opposite in the direction of the correction coupling channel; the processing unit is configured to: Determining a deviation correction value between the first transmission channel and the second transmission
  • a plurality of feedback signals of a transmission channel and a second transmission channel detect a plurality of signal vectors, and since the second feedback signal and the third feedback signal are opposite in a direction of transmission between the first end point and the second end point of the correction coupling channel, Determining a deviation correction value between the first transmission channel and the second transmission channel according to the signal vector of the detected feedback signal, so that the transmission deviation of the correction coupling channel is cancelled, and then the correction of the reception channel is improved according to the deviation correction value.
  • the second feedback signal is a signal that is transmitted by the first coupling to the second endpoint and the second transmission channel;
  • the third feedback signal Is a signal transmitted by the second signal through the first transmission channel and the corrected coupling channel between the second end point and the first end point.
  • the vector detecting unit comprises a quadrature receiver, the first transmission channel and the second transmission channel are combined by a combiner, and the quadrature receiver is connected to the combiner through the coupler
  • the quadrature receiver when the first signal is fed at the first end point, the quadrature receiver respectively performs mixing processing on the first signal and the first feedback signal, the first signal, and the second feedback signal to obtain a first signal vector sum a second signal vector; when the second signal is fed at the second end point, the quadrature receiver respectively performs mixing processing on the second signal and the third feedback signal, and the second signal and the fourth feedback signal to obtain a third Signal vector and fourth signal vector.
  • the first signal fed by the first endpoint is separately mixed with the first feedback signal and the second feedback signal by the orthogonal receiver, and the second signal is fed to the second endpoint respectively.
  • the signal is mixed with the third feedback signal and the fourth feedback signal to obtain a signal vector of the plurality of feedback signals quickly and efficiently, thereby improving the efficiency of signal vector detection.
  • the apparatus further includes a splitter, the splitter is connected to the orthogonal receiver, and the splitter further passes through the switching unit and the first end point of the correcting coupling channel a two-terminal connection; wherein, when the splitter is connected to the first endpoint by the switching unit, the first signal is used to branch the first signal to the orthogonal receiver and the first endpoint; when the splitter passes the switching unit and the second endpoint When connected, it is used to split the second signal to the quadrature receiver and the second endpoint.
  • the switching unit is a three-terminal switch or a three-port balun.
  • the first signal may be split to the orthogonal receiver and the first endpoint by the splitter and the switching unit, and the second signal may be split to the orthogonal receiver and the second endpoint. Therefore, the complexity of the device can be simplified to some extent.
  • the device is a device for inputting a radio frequency signal, and the first signal and the second signal are radio frequency signals; wherein the first signal and the second signal are radio frequency signals from the outside;
  • the apparatus includes a signal generator coupled to the splitter for generating a radio frequency signal, the radio frequency signal including the first signal and the second signal.
  • the device can be used to correct the deviation between the RF transmission channels and improve the accuracy of the RF transmission channel correction.
  • the device is a device for inputting an intermediate frequency signal
  • the device further includes a mixer connected to the splitter, and the mixer is configured to mix the intermediate frequency signal and the correction signal. Processing, obtaining a first signal and a second signal; wherein the correction signal is from the outside, or the device further comprises a signal generator for generating a correction signal.
  • the device can be used to correct the deviation between the transmission channels of the intermediate frequency to the radio frequency, and improve the accuracy of the correction of the medium RF transmission channel.
  • the device is a device for inputting a baseband signal; wherein the first signal and the second signal are external; or the device further includes a signal generator connected to the splitter The signal generator is configured to generate the first signal and the second signal.
  • the device can be used to correct the deviation between the baseband to radio frequency transmission channels and improve the accuracy of the baseband to radio frequency transmission channel correction.
  • the apparatus when the multiple transmission channels further include a third transmission channel, the apparatus is further configured to: correct a deviation between the first transmission channel and the third transmission channel, and/ Or, correcting the deviation between the second transmission channel and the third transmission channel.
  • the correction of the deviation between any two transmission channels in the plurality of transmission channels can be realized, and the accuracy of the deviation correction between the plurality of transmission channels is improved.
  • the device may be integrated in a semiconductor chip, and the plurality of transmission channels may also be integrated in a semiconductor chip, and the device and the plurality of transmission channels may be integrated in the same semiconductor In the chip, it can also be integrated in different semiconductor chips.
  • a wireless communication device comprising the apparatus of the first aspect described above, or any one of the possible implementations of the first aspect described above.
  • the device may be a base station or a terminal.
  • a method for correcting a deviation between a plurality of transmission channels includes: when the first end is fed, the first signal detects the first signal vector according to the first feedback signal of the first transmission channel, And detecting, according to the second feedback signal of the second transmission channel, the second signal vector, when the second end is fed, detecting the third signal vector according to the third feedback signal of the first transmission channel, and according to the second transmission.
  • the fourth feedback signal of the channel detects a fourth signal vector, and the second feedback signal and the third feedback signal are opposite in a direction of transmission in the correction coupling channel; and determining, between the first transmission channel and the second transmission channel, according to the detected signal vector An offset correction value for correcting a deviation between the first transmission channel and the second transmission channel.
  • the second feedback signal is a signal that is transmitted by the first coupling signal to the second coupling terminal and the second transmission channel;
  • the third feedback signal is The second signal passes through the first transmission channel and the signal transmitted by the corrected coupling channel between the second end point and the first end point.
  • detecting the first signal vector and detecting the second signal vector includes: mixing the first signal and the first feedback signal, the first signal, and the second feedback signal, respectively Processing, obtaining a first signal vector and a second signal vector; detecting the third signal vector, and detecting the fourth signal vector, comprising: respectively mixing the second signal and the third feedback signal, and the second signal and the fourth feedback signal Frequency processing to obtain a third signal vector and a fourth signal vector.
  • the method further includes: correcting a deviation between the first transmission channel and the third transmission channel, and/or, Correcting the deviation between the second transmission channel and the third transmission channel.
  • the executor of the method provided by any one of the foregoing third aspect or the third aspect may be the apparatus or chip provided by the foregoing first aspect, or any possible implementation manner of the first aspect, Or the executive body may be the wireless communication device provided by the second aspect above.
  • an apparatus for correcting a deviation between a plurality of transmission channels comprising: a vector detecting unit, configured to: when the first signal is input, the first feedback output from the first end point according to the first transmission channel The signal detecting the first signal vector, and detecting the second signal vector according to the second feedback signal outputted from the first end point according to the second transmission channel; the vector detecting unit is further configured to: when the second signal is input, according to the first transmission channel The third feedback signal outputted from the second endpoint detects the third signal vector, and detects the fourth signal vector according to the fourth feedback signal outputted from the second endpoint by the second transmission channel, and the second feedback signal and the third feedback signal are in the corrected coupling
  • the transmission direction in the channel is opposite;
  • the first transmission channel and the second transmission channel are the transmission channels
  • the first signal and the second signal are respectively input, respectively, according to the first transmission channel and the output from the first end point and the second end point respectively
  • the feedback signal of the second transmission channel detects a plurality of signal vectors. Since the second feedback signal and the third feedback signal have opposite transmission directions in the correction coupling channel, the first transmission channel can be determined according to the detected multiple signal vectors.
  • the deviation correction value between the second transmission channel and the second transmission channel is such that the transmission deviation of the correction coupling channel is cancelled, and when the correction is performed according to the deviation correction value, the accuracy of the reception channel correction can be improved.
  • the second feedback signal is a signal transmitted by the first signal through the second transmission channel and the corrected coupling channel between the second end point and the first end point;
  • the third feedback signal is The second signal is transmitted through the first transmission channel and the corrected coupling channel between the first end point and the second end point.
  • the vector detecting unit includes a quadrature receiver that is respectively connected to the first end point and the second end point of the correcting coupling channel; when the first signal is input, The quadrature receiver respectively performs mixing processing on the first signal and the first feedback signal, the first signal and the second feedback signal to obtain a first signal vector and a second signal vector; when the second signal is input, orthogonal reception The machine performs mixing processing on the second signal and the third feedback signal, and the second signal and the fourth feedback signal, respectively, to obtain a third signal vector and a fourth signal vector.
  • the first signal is mixed with the first feedback signal and the second feedback signal by the orthogonal receiver, and the second signal is mixed with the third feedback signal and the fourth feedback signal respectively.
  • Frequency processing can quickly and efficiently obtain signal vectors of multiple feedback signals, improving the efficiency of signal vector detection.
  • the apparatus further includes a splitter, and the splitter is connected to the first transmission channel, the second transmission channel, and the quadrature receiver to respectively respectively use the first signal and the second
  • the signal is input to the first transmission channel, the second transmission channel, and the quadrature receiver;
  • the quadrature receiver is further connected to the first end point and the second end point of the correction coupling channel through the switching unit, wherein when the quadrature receiver passes through the switching unit When connected to the first endpoint, the quadrature receiver receives the first feedback signal and the second feedback signal, and when the quadrature receiver is connected to the second endpoint through the switching unit, the quadrature receiver receives the third feedback signal and The fourth feedback signal.
  • the switching unit is a three-terminal switch or a three-port balun.
  • the first signal and the second signal are separately branched to the first transmission channel, the second transmission channel, and the orthogonal receiver by the splitter, and the orthogonal receivers are respectively received by the switching unit from the first
  • the feedback signal output by the endpoint and the feedback signal output from the second endpoint can simplify the complexity of the device to some extent.
  • the device is a device for inputting a radio frequency signal, and the first signal and the second signal are radio frequency signals; wherein the first signal and the second signal are radio frequency signals from the outside;
  • the apparatus further includes a signal generator coupled to the splitter for generating a radio frequency signal, the radio frequency signal including the first signal and the second signal.
  • the device can be used to correct the deviation between the RF transmission channels and improve the accuracy of the RF transmission channel correction.
  • the device is a device for inputting an intermediate frequency signal
  • the device further includes a mixer connected to the splitter, and the mixer is configured to mix the intermediate frequency signal and the correction signal. Processing, obtaining a first signal and a second signal; wherein the correction signal is from the outside, or the device further comprises a signal generator for generating a correction signal.
  • the device can be used to correct the deviation between the transmission channels of the intermediate frequency to the radio frequency, and improve the accuracy of the correction of the medium RF transmission channel.
  • the device is a device for inputting a baseband signal; wherein the first signal and the second signal are external; or the device further includes a signal generator connected to the splitter The signal generator is configured to generate the first signal and the second signal.
  • the device can be used to correct the deviation between the baseband to radio frequency transmission channels and improve the accuracy of the baseband to radio frequency transmission channel correction.
  • the apparatus when the multiple transmission channels further include a third transmission channel, the apparatus is further configured to: correct a deviation between the first transmission channel and the third transmission channel, and/ Or, correcting the deviation between the second transmission channel and the third transmission channel.
  • the correction of the deviation between any two transmission channels in the plurality of transmission channels can be realized, and the accuracy of the deviation correction between the plurality of transmission channels is improved.
  • the device may be integrated in a semiconductor chip, and the plurality of transmission channels may also be integrated in a semiconductor chip, and the device and the plurality of transmission channels may be integrated in the same semiconductor In the chip, it can also be integrated in different semiconductor chips.
  • a wireless communication device comprising the apparatus of the first aspect, or any one of the possible implementations of the first aspect described above.
  • the device may be a base station or a terminal.
  • a method for correcting a deviation between a plurality of transmission channels comprising: detecting the first signal vector according to the first feedback signal of the first transmission channel when the first signal is input, and according to the second transmission
  • the second feedback signal of the channel detects the second signal vector; when the second signal is input, detecting the third signal vector according to the third feedback signal of the first transmission channel, and detecting the fourth according to the fourth feedback signal of the second transmission channel a signal vector; wherein a second feedback signal and the third feedback signal have opposite transmission directions in the correction coupling channel; and determining a deviation correction value between the first transmission channel and the second transmission channel according to the detected signal vector
  • the deviation correction value is used to correct the deviation between the first transmission channel and the second transmission channel.
  • the second feedback signal is a signal transmitted by the first signal through the second transmission channel and the corrected coupling channel between the second end point and the first end point;
  • the third feedback signal is The second signal is transmitted through the first transmission channel and the corrected coupling channel between the first end point and the second end point.
  • detecting the first signal vector and detecting the second signal vector includes: respectively mixing the first signal and the first feedback signal, the first signal, and the second feedback signal Processing, obtaining a first signal vector and a second signal vector; detecting the third signal vector, and detecting the fourth signal vector, comprising: respectively mixing the second signal and the third feedback signal, and the second signal and the fourth feedback signal Frequency processing to obtain a third signal vector and a fourth signal vector.
  • the method further includes: correcting a deviation between the first transmission channel and the third transmission channel, and/or, Correcting the deviation between the second transmission channel and the third transmission channel.
  • the apparatus or chip provided by the foregoing fourth aspect, or the possible implementation manner of the fourth aspect may be the apparatus or chip provided by any of the foregoing fourth aspect or the fourth aspect, Or the executive body may be the wireless communication device provided by the fifth aspect above.
  • the vector detecting unit involved in the above aspects may refer to a unit for detecting a signal amplitude and/or a signal phase, and the signal amplitude and the signal phase may constitute a vector.
  • the vector detecting unit may output two component signals, and the two component signals may be used to determine a signal amplitude and a signal phase.
  • the vector detecting unit may include a quadrature receiver or a Hilbert filter.
  • the two component signals that the quadrature receiver or the Hilbert filter can use for output are I and Q, respectively, and the signal amplitude A and the signal phase ⁇ can be determined according to the following formulas (a) and (b), or can be directly used for the output signal. Amplitude A and signal phase ⁇ .
  • FIG. 1 is a schematic structural diagram of a combination form of an antenna unit and a chip according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of a first device according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a second device according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a third device according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a fourth device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a switching unit according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a fifth device according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a sixth apparatus according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a seventh device according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of an apparatus according to an eighth embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a ninth device according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a tenth device according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a TRX module according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic structural diagram of an apparatus according to an eleventh embodiment of the present disclosure.
  • 15 is a schematic structural diagram of a twelfth device according to an embodiment of the present application.
  • 16 is a schematic structural diagram of a thirteenth device according to an embodiment of the present application.
  • FIG. 17 is a schematic structural diagram of a semiconductor chip according to an embodiment of the present disclosure.
  • FIG. 18 is a schematic flowchart of a method for correcting deviation between multiple transmission channels according to an embodiment of the present application.
  • FIG. 19 is a schematic flow chart of another method for correcting deviation between multiple transmission channels according to an embodiment of the present application.
  • Phased array is a phase-controlled electronic scanning array. It uses a large number of antenna elements arranged in an array. Each antenna unit can have independent switch control. By controlling the amplitude and phase of each antenna unit in the array, the electromagnetic wave radiation is modulated. Direction to synthesize a beam with a focused focus scan.
  • a device eg, a base station or a terminal, etc.
  • a device in a communication system using phased array technology may include an antenna unit and a chip, and one chip may include multiple RF channels, and one RF channel and one antenna unit may constitute a device.
  • the radio frequency channel, and the channel formed by the radio frequency channel and the antenna unit may be referred to as a transmission channel.
  • the antenna unit is used as a patch antenna, and the phased array includes a 4 ⁇ 4 antenna array.
  • the antenna unit and the chip in the phased array can be combined in two forms, that is, AOB ( Antenna on PCB) and AIP (antenna in package). As shown in (a) of FIG.
  • the AOB means that the antenna unit is in a printed circuit board (PCB), and the antenna unit and the chip can be respectively located on two sides of the PCB (ie, the antenna unit is printed on one side of the PCB, the chip Attached to the other side of the PCB, it can also be located on the same side of the PCB (ie, the antenna unit is printed on one side of the PCB, and the chip is also attached to the surface), and the different faces are illustrated in FIG. 1 as an example.
  • AIP means that the antenna unit is located in a package of the chip, the antenna unit is packaged with the chip, the antenna unit can be located on the top of the package of the chip, and the chip is attached to the PCB.
  • the apparatus 200 includes a vector detecting unit 201 and a processing unit 202.
  • the vector detecting unit 201 is configured to: when the first signal is fed in the first end, detect the first signal vector according to the first feedback signal of the first transmission channel, and detect the second feedback signal according to the second feedback signal of the second transmission channel Two signal vector.
  • the vector detecting unit 201 is further configured to: when the second signal is fed at the second end point, detect the third signal vector according to the third feedback signal of the first transmission channel, and detect the fourth feedback signal according to the fourth feedback signal of the second transmission channel.
  • the four signal vectors, the second feedback signal and the third feedback signal are opposite in direction of transmission in the corrected coupling channel.
  • the vector detecting unit 201 may refer to a unit for detecting a signal amplitude and/or a signal phase, and the signal amplitude and the signal phase may constitute a vector.
  • the vector detecting unit 201 may output two component signals, and the two component signals may be used to determine a signal amplitude and a signal phase.
  • the vector detecting unit 201 may include a quadrature receiver or a Hilbert filter, and a quadrature receiver.
  • the two component signals that the Hilbert filter can use for output are I and Q, respectively, and the signal amplitude A and the signal phase ⁇ can be determined according to the following formulas (a) and (b), or can be directly used to output the signal amplitude A and the signal. Phase ⁇ .
  • the correction coupling channel can be used to feed signals to the first transmission channel and the second transmission channel, for example, feeding the first signal at the first end point, feeding the second signal at the second end point, and the first transmission channel and
  • the second transmission channel can receive a signal that corrects the feed of the coupled channel.
  • the correcting coupling channel may be a transmission line, and the first transmission channel may be connected to the first end point of the correction coupling channel through a coupler (CP), and the second transmission channel may also be connected to the second end point of the correction coupling channel through the coupler.
  • CP coupler
  • the vector detecting unit 201 may receive the first feedback signal, and the vector detecting unit 201 detects the first feedback signal.
  • the first signal vector can be obtained.
  • the vector detecting unit 201 can receive the second feedback signal, and the vector detecting unit 201 detects the second feedback signal to obtain the second signal vector.
  • the vector detecting unit 201 can receive the third feedback signal, and the vector detecting unit 201 detects The third feedback signal can obtain the third signal vector; after the second signal is transmitted through the second transmission channel, the vector detecting unit 201 can receive the fourth feedback signal, and the vector detecting unit 201 detects the fourth feedback signal to obtain the fourth signal vector.
  • the first signal is in a transmission direction between the first end point and the second end point of the correcting coupling channel from the first end point to the second end point
  • the second signal is between the first end point and the second end point of the correcting coupling channel
  • the transmission direction is from the second end point to the first end point, and therefore, the second feedback signal and the third feedback signal received by the vector detecting unit 201 are opposite to the transmission direction between the first end point and the second end point of the correction coupling channel.
  • the vector detecting unit 201 may perform one or more detections on each of the received feedback signals, and when one detection is performed on each of the feedback signals, a signal vector is obtained, and when each feedback signal is detected multiple times, Get multiple signal vectors. For example, the vector detecting unit 201 performs one detection on the first feedback signal to obtain a first signal vector. Alternatively, the vector detecting unit 201 performs multiple detections on the first feedback signal to obtain a plurality of first signal vectors.
  • the processing unit 202 is configured to determine, according to the detected signal vector, a deviation correction value between the first transmission channel and the second transmission channel, where the deviation correction value is used to correct a deviation between the first transmission channel and the second transmission channel.
  • the processing unit 202 may determine the first transmission channel according to a first signal vector, a second signal vector, a third signal vector, and a fourth signal vector. a deviation correction value with the second transmission channel; when each of the detected signal vectors includes a plurality of signal vectors, the processing unit 202 may be configured according to the plurality of first signal vectors, the plurality of second signal vectors, and the plurality of third signals The vector and the plurality of fourth signal vectors determine a deviation correction value between the first transmission channel and the second transmission channel.
  • each signal vector may include amplitude information and phase information
  • the offset correction value may include an amplitude correction value between the first transmission channel and the second transmission channel, and may also include a phase between the first transmission channel and the second transmission channel.
  • Correction value The processing unit 202 may determine the amplitude correction value according to the amplitude information in the detected signal vector, and may also determine the phase correction value according to the phase information in the detected signal vector.
  • the offset correction value can be directly obtained by canceling the manner of correcting the transmission deviation of the coupled channel.
  • each signal vector includes a signal vector. If the first signal vector is (A 1 , ⁇ 1 ), the second signal vector is (A 2 , ⁇ 2 ), the third signal vector is (A 3 , ⁇ 3 ), and the fourth signal vector is (A 4 , ⁇ 3 ) 4 ), the processing unit 202 can determine the amplitude correction value ⁇ A between the first transmission channel and the second transmission channel according to A 1 , A 2 , A 3 and A 4 , according to ⁇ 1 , ⁇ 2 , ⁇ 3 and ⁇ 4 The phase correction value ⁇ is determined. Exemplarily, the processing unit 202 may determine ⁇ A according to the following formula (1), and determine ⁇ between the first transmission channel and the second transmission channel according to the following formula (2).
  • the transmission deviation of the correction coupling channel may include a transmission amplitude deviation and a transmission phase deviation
  • the processing unit 202 may further be configured to determine a corrected coupling channel pair signal between the first end point and the second end point according to the detected signal vector.
  • the processing unit 202 can determine, according to the following formulas (3) and (4), the transmission amplitude deviation ⁇ and the transmission phase deviation ⁇ caused by the correction coupling channel to the signal.
  • the above formulas (1) to (4) are merely exemplary, and the processing unit 202 may further determine the amplitude correction value and the phase correction value between the first transmission channel and the second transmission channel according to the detected signal vector by other means. And determining the transmission amplitude deviation and the transmission phase deviation caused by the corrected coupling channel to the signal.
  • the first transmission channel or the second transmission channel may be compensated according to the amplitude correction value to correct the first transmission channel and the second transmission.
  • a phase shifter PS is disposed in the first transmission channel and/or, and an amplitude correction value and a phase correction value between the first transmission channel and the second transmission channel are set by the PS.
  • the deviation correction value between the first transmission channel and the second transmission channel can be determined according to the signal vector of the detected feedback signal, so that the transmission deviation of the corrected coupling channel is cancelled, and when the correction is performed according to the deviation correction value, the improvement can be improved. Receive channel correction accuracy.
  • the vector detecting unit 201 may include a quadrature receiver 2011, the first transmission channel and the second transmission channel are combined by a combiner 203, and the quadrature receiver 2011 passes through the coupler 204 and the combiner 203 connection.
  • the first signal is fed at the first end point, and the quadrature receiver 2011 respectively performs mixing processing on the first signal and the first feedback signal, the first signal, and the second feedback signal to obtain a first signal vector and a first signal.
  • the second signal is fed at the first end point, and the quadrature receiver 2011 performs mixing processing on the second signal and the third feedback signal, the second signal, and the fourth feedback signal, respectively, to obtain a third signal vector and a fourth signal.
  • Vector
  • the first signal is fed at the first end point, and when the first transmission channel is opened and the second transmission channel is closed, the first signal is transmitted to the combiner 203 through the first transmission channel, and the quadrature receiver 2011 receives To the first feedback signal coupled by the coupler 204 from the combiner 203, the quadrature receiver 2011 performs a mixing process on the first signal and the first feedback signal to obtain a first signal vector, when the first transmission channel is closed and opened.
  • the first signal is transmitted to the combiner 203 via the corrected coupling channel and the second transmission channel between the first end point and the second end point, and the quadrature receiver 2011 receives the coupler 204 from the combiner 203.
  • the second feedback signal is coupled, and the quadrature receiver 2011 performs mixing processing on the first signal and the second feedback signal to obtain a second signal vector.
  • the second signal is fed at the second end point, and when the first transmission channel is opened and the second transmission channel is closed, the second signal passes through the corrected coupling channel and the first transmission channel between the first end point and the second end point.
  • the quadrature receiver 2011 receives the third feedback signal coupled by the coupler 204 from the combiner 203, and the quadrature receiver 2011 performs mixing processing on the second signal and the third feedback signal to obtain The third signal vector, when the first transmission channel is closed and the second transmission channel is opened, the second signal is transmitted to the combiner 203 via the second transmission channel, and the quadrature receiver 2011 receives the coupler 204 coupled from the combiner 203.
  • the fourth feedback signal is output, and the quadrature receiver 2011 performs mixing processing on the second signal and the fourth feedback signal to obtain a fourth signal vector.
  • the vector detecting unit 201 may include a first orthogonal receiver 2012 and a second receiver 2013, and the first orthogonal receiver 2012 is connected to the first transmission channel through the first coupler 2041, and second.
  • the quadrature receiver 2013 is coupled to the second transmission channel by a second coupler 2042.
  • the first signal is fed at the first end point, and after the first signal is transmitted through the first transmission channel, the first orthogonal receiver 2012 receives the first feedback that the first coupler 2041 is coupled out from the first transmission channel.
  • a first orthogonal receiver 2012 performs a mixing process on the first signal and the first feedback signal to obtain a first signal vector; the first signal passes through the corrected coupling channel and the second transmission between the first end point and the second end point After the channel is transmitted, the second orthogonal receiver 2013 receives the second feedback signal coupled by the second coupler 2042 from the second transmission channel, and the second orthogonal receiver 2013 mixes the first signal and the second feedback signal. Processing to obtain a second signal vector.
  • the second signal is fed at the second end point, and after the second signal is transmitted from the second end point to the corrected coupling channel between the first end point and the first transmission channel, the first orthogonal receiver 2012 receives the first coupler 2041 a third feedback signal coupled from the first transmission channel, the first orthogonal receiver 2012 performs a mixing process on the second signal and the third feedback signal to obtain a third signal vector; after the second signal is transmitted through the second transmission channel
  • the second orthogonal receiver 2013 receives the fourth feedback signal coupled by the second coupler 2042 from the second transmission channel, and the second orthogonal receiver 2013 performs mixing processing on the second signal and the fourth feedback signal to obtain The fourth signal vector.
  • the apparatus further includes a splitter 205, which is connected to the quadrature receiver 2011, and the splitter 205 also passes through the switching unit 206 and the first of the correcting coupling channels.
  • the endpoint is connected to the second endpoint.
  • the switching unit 206 can be a three-port switch, or a three-port balun, wherein the port IN is connected to the splitter 205, and the port 1 and the port 2 are respectively connected to the first end and the second end. Endpoint connection.
  • the splitter 205 When the splitter 205 is coupled to the first endpoint of the corrected coupling channel by the switching unit 206, the splitter 205 is configured to split the first signal to the quadrature receiver 2011 and the first endpoint, splitting to orthogonal
  • the first signal of the receiver 2011 is used for mixing processing with the first feedback signal and the second feedback signal, and the first signal branched to the first endpoint is used for feeding from the first endpoint.
  • the splitter 205 is connected to the second endpoint through the switching unit 206, the splitter 205 is configured to split the second signal to the quadrature receiver 2011 and the second endpoint, and split the second to the quadrature receiver 2011.
  • the signal is used for mixing processing with the third feedback signal and the fourth feedback signal, and the second signal branched to the second end point is used for feeding from the second end point.
  • the device 200 can be a radio frequency (RF) signal input device, such as a radio frequency chip or a radio frequency module.
  • the first signal and the second signal may be external RF signals.
  • the external RF signal may be generated by an external local oscillator (LO).
  • the apparatus includes a signal generator 207 coupled to the splitter 205 for generating a radio frequency signal comprising a first signal and a second signal.
  • the signal generator 207 can be a local oscillator.
  • the signal generator 207 is taken as an example of LO, and LO_IN represents an external LO input.
  • the device 200 may be an intermediate frequency (IF) signal input device.
  • the device may further include a mixer. 208.
  • the mixer 208 is configured to perform mixing processing on the intermediate frequency signal and the correction signal to obtain a first signal and a second signal.
  • the correction signal may be from the outside, for example, the correction signal from the outside may be generated by an external LO.
  • the apparatus includes a signal generator 209 coupled to the splitter 205 via a mixer 208 for generating a signal for correction.
  • the signal generator 209 can be an LO.
  • the signal generator 209 is taken as an example.
  • LO_IN represents an external LO input
  • IF represents an intermediate frequency signal input terminal.
  • the device 200 can be a device for inputting a baseband signal, such as a baseband chip or a baseband module.
  • the first signal and the second signal are from the outside, for example, the first signal and the second signal may be generated by an external LO; or the device further includes a signal generator 210 connected to the splitter 205, the signal generator 210 is for generating a first signal and a second signal.
  • the signal generator 210 is taken as an example of LO, and LO_IN represents an external LO input.
  • the device for inputting the baseband signal may generally include a baseband module, an intermediate frequency module, and a radio frequency module.
  • the first signal and the second signal may be provided by the radio frequency module, or may be provided by the intermediate frequency.
  • the module is provided by the baseband module, and is not specifically limited in this embodiment.
  • the plurality of transmission channels further includes a third transmission channel, and the third transmission channel is connected to the third end of the correction coupling channel, the device is further configured to: correct a deviation between the first transmission channel and the third transmission channel, and / or, correct the deviation between the second transmission channel and the third transmission channel.
  • the vector detecting unit 201 is further configured to: when the first end is fed, the first signal detects the fifth signal vector according to the fifth feedback signal of the first transmission channel, and detects the sixth feedback signal according to the third transmission channel.
  • the vector detecting unit 201 is further configured to: when the third signal is fed in the third signal, detect the seventh signal vector according to the seventh feedback signal of the first transmission channel, and the eighth signal according to the third transmission channel The feedback signal detects the eighth signal vector, and the sixth feedback signal and the seventh feedback signal are opposite in the direction of the correction coupling channel; the processing unit 202 is further configured to determine the first transmission channel and the third transmission according to the detected signal vector The deviation correction value between the channels, wherein the transmission deviations of the correction coupling channels cancel each other, and the deviation correction value is used to correct the deviation between the first transmission channel and the third transmission channel.
  • the apparatus 200 is further configured to correct a deviation between the first transmission channel and the third transmission channel, and/or a specific implementation manner of correcting a deviation between the second transmission channel and the third transmission channel, and the above correction.
  • the specific implementation of the deviation between the first transmission channel and the second transmission channel is similar. For details, refer to the description of the deviation between the first transmission channel and the second transmission channel, which is not described herein again.
  • FIG. 10 is another apparatus for correcting a deviation between a plurality of transmission channels according to an embodiment of the present application.
  • the multiple transmission channels include a first transmission channel, a second transmission channel, and a correction coupling channel, and the first of the correction coupling channels is provided.
  • the end point is connected to the first transmission channel, and the second end of the correction coupling channel is connected to the second transmission channel, and the first transmission channel and the second transmission channel are both transmission channels.
  • the apparatus 300 includes a vector detecting unit 301 and a processing unit 302.
  • the vector detecting unit 301 is configured to: when the first signal is input into the first transmission channel and the second transmission channel, detect the first signal vector according to the first feedback signal outputted from the first endpoint by the first transmission channel, and according to the second The second feedback signal output by the transmission channel from the first endpoint detects the second signal vector.
  • the vector detecting unit 301 is further configured to: when the second signal is input to the first transmission channel and the second transmission channel, detect the third signal vector according to the third feedback signal outputted from the second endpoint by the first transmission channel, and according to the second The fourth feedback signal outputted by the transmission channel from the second endpoint detects the fourth signal vector, and the second feedback signal and the third feedback signal are opposite in the direction of transmission in the corrected coupling channel.
  • the vector detecting unit 301 may refer to a unit for detecting a signal amplitude and/or a signal phase, and the signal amplitude and the signal phase may constitute a vector. Alternatively, the vector detecting unit 301 can output two component signals, which can be used to determine the signal amplitude and the signal phase.
  • the first transmission channel and the second transmission channel are both transmission channels, and the first signal and the second signal for correction may be transmitted.
  • the corrected coupling channel can be used to receive signals transmitted by the first transmission channel and the second transmission channel.
  • the correcting coupling channel may be a transmission line, and the first transmission channel may be connected to the first end of the correction coupling channel through a coupler (CP), and the second transmission channel may also pass through the coupler and the correction coupling channel. Two endpoint connections.
  • the vector detecting unit 301 may receive the first feedback signal at the first end of the corrected coupling channel, the vector The detecting unit 301 detects the first feedback signal to obtain a first signal vector.
  • the vector detecting unit 301 can receive the second feedback signal at the first end of the correction coupling channel, and the vector detecting unit 301 can detect the second feedback signal. Two signal vector.
  • the vector detecting unit 301 may receive the third feedback at the second end of the correction coupling channel.
  • the signal, vector detecting unit 301 detects the third feedback signal to obtain a third signal vector.
  • the vector detecting unit 301 may receive the fourth feedback signal at the second end of the correction coupling channel, and the vector detecting unit 301 may detect the fourth feedback signal to obtain the fourth signal vector.
  • the second feedback signal is in a transmission direction between the first end point and the second end point of the correction coupling channel from the second end point to the first end point, and the third feedback signal is in the first end point and the second end of the correction coupling channel.
  • the transmission direction between the endpoints is from the first endpoint to the second endpoint. Therefore, the second feedback signal and the third feedback signal received by the vector detecting unit 301 are transmitted between the first endpoint and the second endpoint of the corrected coupling channel. The opposite direction.
  • the vector detecting unit 301 can perform one or more detections on each of the received feedback signals, and when performing one detection for each feedback signal, a signal vector is obtained, and when each feedback signal is detected multiple times, Get multiple signal vectors. For example, the vector detecting unit 301 performs one detection on the first feedback signal to obtain a first signal vector. Alternatively, the vector detecting unit 301 performs multiple detections on the first feedback signal to obtain a plurality of first signal vectors.
  • the processing unit 302 is configured to determine, according to the detected signal vector, a deviation correction value between the first transmission channel and the second transmission channel, where the deviation correction value is used to correct a deviation between the first transmission channel and the second transmission channel.
  • the processing unit 302 may determine the first transmission channel according to a first signal vector, a second signal vector, a third signal vector, and a fourth signal vector. a deviation correction value with the second transmission channel; when each of the detected signal vectors includes a plurality of signal vectors, the processing unit 302 may be configured according to the plurality of first signal vectors, the plurality of second signal vectors, and the plurality of third signals The vector and the plurality of fourth signal vectors determine a deviation correction value between the first transmission channel and the second transmission channel.
  • each signal vector may include amplitude information and phase information
  • the offset correction value may include an amplitude correction value between the first transmission channel and the second transmission channel, and may also include a phase between the first transmission channel and the second transmission channel.
  • Correction value The processing unit 302 may determine the amplitude correction value according to the amplitude information in the detected signal vector, and may also determine the phase correction value according to the phase information in the detected signal vector.
  • the second feedback signal and the third feedback signal have opposite transmission directions in the corrected coupling channel between the first end point and the second end point, when determining the deviation correction value between the first transmission channel and the second transmission channel, The transmission deviation of the corrected coupling channel can be cancelled, and the deviation between the first transmission channel and the second transmission channel can be corrected directly according to the deviation correction value.
  • the offset correction value between the first transmission channel and the second transmission channel and the manner of correcting the deviation between the first transmission channel and the second transmission channel are determined, as shown in FIG. 2 above.
  • the deviation correction value between the first transmission channel and the second transmission channel is determined, and the manner of correcting the deviation between the first transmission channel and the second transmission channel is the same.
  • the first transmission channel and the second transmission channel are the transmission channels
  • the first signal and the second signal are respectively input, respectively
  • the feedback signals of the channel and the second transmission channel detect a plurality of signal vectors. Since the second feedback signal and the third feedback signal have opposite transmission directions in the correction coupling channel, the first signal vector may be determined according to the detected multiple signal vectors.
  • the deviation correction value between the transmission channel and the second transmission channel is such that the transmission deviation of the correction coupling channel is cancelled, and when the correction is performed according to the deviation correction value, the accuracy of the reception channel correction can be improved.
  • the vector detecting unit 301 may include a quadrature receiver 3011, which is respectively connected to the first end point and the second end point of the correcting coupling channel;
  • the orthogonal receiver 3011 respectively pairs the first signal and the first feedback signal, the first signal Mixing with the second feedback signal to obtain a first signal vector and a second signal vector.
  • the quadrature receiver 3011 respectively pairs the second signal and the third feedback signal, and the second signal sum
  • the fourth feedback signal is subjected to mixing processing to obtain a third signal vector and a fourth signal vector.
  • the first transmission channel and the second transmission channel may include a single input terminal, and may also include the same input terminal.
  • FIG. 11 illustrates the same input terminal as an example. If the first transmission channel and the second transmission channel comprise separate input terminals, respectively inputting the first signal to the first transmission channel and the second transmission channel, the orthogonal receiver 3011 receives the first feedback signal through the first endpoint respectively And the second feedback signal, the quadrature receiver 3011 performs mixing processing on the first signal and the first feedback signal to obtain a first signal vector, and performs mixing processing on the first signal and the second feedback signal to obtain a second signal vector. .
  • the first transmission channel and the second transmission channel comprise separate input terminals, respectively inputting a second signal to the first transmission channel and the second transmission channel, and the quadrature receiver 3011 receives the third feedback through the second endpoint respectively.
  • the signal and the fourth feedback signal, the quadrature receiver 3011 performs mixing processing on the second signal and the third feedback signal to obtain a third signal vector, and performs mixing processing on the second signal and the fourth feedback signal to obtain a fourth signal.
  • Vector
  • the orthogonal receiver 3011 can receive the first feedback signal through the first endpoint, and receive the quadrature.
  • the machine 3011 performs a mixing process on the first signal and the first feedback signal to obtain a first signal vector.
  • the orthogonal receiver 3011 can receive the first terminal through the first terminal.
  • the two feedback signals, the quadrature receiver 3011 performs a mixing process on the first signal and the second feedback signal to obtain a second signal vector.
  • the first transmission channel and the second transmission channel comprise the same input end.
  • the quadrature receiver 3011 can receive the third feedback signal through the second endpoint, orthogonal.
  • the receiver 3011 performs a mixing process on the second signal and the third feedback signal to obtain a third signal vector.
  • the orthogonal receiver 3011 can receive the second terminal. Four feedback signals, the quadrature receiver 3011 performs mixing processing on the second signal and the fourth feedback signal to obtain a fourth signal vector.
  • the apparatus further includes a splitter 303, which is connected to the first transmission channel, the second transmission channel, and the quadrature receiver 3011, and the splitter 303 is configured to respectively The first signal and the second signal are input to the first transmission channel, the second transmission channel, and the quadrature receiver 3011.
  • the quadrature receiver 3011 is connected to the first end point and the second end point of the correction coupling channel through the switching unit 304.
  • the quadrature receiver 3011 When the quadrature receiver 3011 is connected to the first end point through the switching unit 304, the quadrature receiver 3011 can receive The first feedback signal and the second feedback signal output from the first endpoint, when the quadrature receiver 3011 is connected to the second endpoint through the switching unit 304, the quadrature receiver 3011 receives the third feedback output from the second endpoint Signal and fourth feedback signal.
  • the switching unit 304 can be a three-port switch or a three-port balun as shown in FIG. 6, wherein the port IN is connected to the splitter 303, and the port 1 and the port 2 are respectively connected to the first end point and the second end point. connection.
  • the device may be a device for inputting a radio frequency signal, such as a radio frequency chip or a radio frequency module.
  • the first signal and the second signal may be radio frequency signals from the outside, for example, the radio frequency signals from the outside may be generated by an external LO.
  • the apparatus includes a signal generator coupled to the splitter 303 for generating a radio frequency signal comprising a first signal and a second signal.
  • the signal generator can be an LO.
  • the device may be a device for inputting an intermediate frequency signal.
  • the device may further include a mixer, and the mixer is configured to perform mixing processing on the intermediate frequency signal and the correction signal to obtain the first A signal and a second signal.
  • the correction signal may be from the outside, for example, the correction signal from the outside may be generated by an external LO.
  • the apparatus includes a signal generator coupled to the splitter 303 via a mixer for generating a signal for correction.
  • the signal generator can be an LO.
  • the device can be a device for inputting a baseband signal, such as a baseband chip or a baseband module.
  • a baseband signal such as a baseband chip or a baseband module.
  • the first signal and the second signal are from the outside, for example, the first signal and the second signal may be generated by an external LO; or the device further includes a signal generator connected to the splitter 303, the signal generator is used for A first signal and a second signal are generated.
  • the signal generator can be an LO.
  • the device is a device for inputting a radio frequency signal, a device for inputting an intermediate frequency signal, or a device for inputting a baseband signal
  • the connection relationship between the splitter 303 and each signal generator is respectively shown in FIG. 7 to FIG. 9 .
  • the illustrated splitter 205 is identical in its connection to the signal generator 207, signal generator 209, and signal generator 210, as described in more detail in Figures 7-9.
  • the first transmission channel and the second transmission channel can serve as both a transmission channel and a reception channel, and the first transmission channel and the second transmission channel can be switched by the TRX module when the TRX module is receiving (RX).
  • the first transmission channel and the second transmission channel are receiving channels
  • the TRX module is in a transmitting (TX) state
  • the first transmission channel and the second transmission channel are transmitting channels. Therefore, the means for correcting the receiving channel and the means for correcting the transmitting channel can be integrated as a whole.
  • FIG. 13 is a schematic structural diagram of a TRX module, including a phase shifter (PS) and a power amplifier (PA) in the transmission channel, and a receiving channel including a PS and a low noise amplifier (LNA).
  • PS phase shifter
  • PA power amplifier
  • LNA low noise amplifier
  • the integrated device when the means for correcting the receiving channel and the means for correcting the transmitting channel are both means for inputting radio frequency signals, the integrated device can be as shown in FIG. 14 includes a plurality of SWs (SW1 to SW9, a plurality of SW1s, a plurality of SW1s including SW1 in FIG. 13), an IQR indicating a quadrature receiver (ie, 2011 or 3011), and CH_1 to CH_N indicating a plurality of transmission channels.
  • SWs SW1 to SW9
  • a plurality of SW1s a plurality of SW1s including SW1 in FIG. 13
  • an IQR indicating a quadrature receiver ie, 2011 or 3011
  • CH_1 to CH_N indicating a plurality of transmission channels.
  • T1 denotes a corrected coupling channel, with CH_1 as the first transmission channel, CH_N as the second transmission channel as an example, CP1 can represent the first endpoint, CPn can represent the second endpoint, and I and Q can represent the I of the signal vector of the IQR output. Component and Q component.
  • VGA represents a variable gain amplifier
  • the switching unit 206 or the switching unit 304 may include SW6 to SW8, and RF0 is an input terminal of the radio frequency signal.
  • the device when SW1 ⁇ SW5 are all located at position 1, the device is used to correct the deviation between the transmission channels, and when SW6 ⁇ SW8 are both at position 1, the IQR can receive the feedback signal coupled from CP1 (ie, detecting the first The feedback signal output by the endpoint), when SW6 ⁇ SW8 are both at position 2, the IQR can receive the feedback signal coupled from the CPn (ie, the feedback signal that detects the output of the second endpoint).
  • the LO is used to input the first signal and the second signal; when SW9 is at position 2, the input first signal and second signal are from the outside.
  • the device When SW1 ⁇ SW5 are both at position 2, the device is used to correct the deviation between the receiving channels, and when SW6 ⁇ SW8 are both at position 1, the first signal is coupled from CP1 (ie, fed from the first end point),
  • the IQR can receive the feedback signals of the receiving channels CH_1 and CH_N coupled from CP0 (ie, the coupler 204 in FIG. 3).
  • the IQR can receive the receiving channel CH_1 coupled from CP0.
  • CH_N feedback signal When SW9 is in position 1, the LO is used to generate the first signal and the second signal; when SW9 is in position 2, the first signal and the second signal are from the outside.
  • the integrated device when the means for correcting the receiving channel and the means for correcting the transmitting channel are both means for inputting an intermediate frequency signal, the integrated device can be as shown in FIG. 15 includes a plurality of SWs (SW1 to SW9, a plurality of SW1s, a plurality of SW1s including SW1 in FIG. 13), an IQR indicating a quadrature receiver (ie, 2011 or 3011), and CH_1 to CH_N indicating a plurality of transmission channels.
  • SWs SW1 to SW9
  • a plurality of SW1s a plurality of SW1s including SW1 in FIG. 13
  • an IQR indicating a quadrature receiver ie, 2011 or 3011
  • CH_1 to CH_N indicating a plurality of transmission channels.
  • T1 denotes a corrected coupling channel, with CH_1 as the first transmission channel, CH_N as the second transmission channel as an example, CP1 may represent the first endpoint, CPn may represent the second endpoint, and the TX mixer is the mixer of the transmission channel.
  • the RX mixer is the mixer of the receive channel, and I and Q can be the I and Q components of the signal vector output by IQR.
  • VGA denotes a variable gain amplifier
  • switching unit 206 or switching unit 304 may include SW6 to SW8, and IF0 is an input terminal of the intermediate frequency signal.
  • the device when SW1, SW2 and SW5 are both at position 1, SW3 is closed, and SW4 is open, the device is used to correct the deviation between the transmission channels, and when SW6 to SW8 are both at position 1, the IQR can receive the coupling from CP1.
  • the feedback signal ie, detecting the feedback signal output from the first endpoint
  • the IQR can receive the feedback signal coupled from the CPn (ie, detecting the feedback signal output from the second endpoint).
  • the LO When SW9 is at position 1, the LO is used to generate a correction signal, and the TX mixer processes the intermediate frequency signal and the correction signal to input the first signal and the second signal to the transmission channels CH_1 and CH_N; when the SW9 is at the position 2, the TX is mixed.
  • the correction signal used by the frequency converter is from the outside.
  • the device When SW1, SW2 and SW5 are both at position 2, SW3 and SW4 are both closed, the device is used to correct the deviation between the receiving channels, and when SW6 ⁇ SW8 are both at position 1, the first signal is coupled from CP1 (ie, from The first terminal feeds in), the IQR can receive the feedback signals of the receiving channels CH_1 and CH_N coupled from the CP0, and when the SW6-SW8 are both located at the position 2, the IQR can receive the feedback signals of the receiving channels CH_1 and CH_N.
  • the LO is used to generate a correction signal
  • the RX mixer processes the IF signal and the correction signal to input the first signal and the second signal; when SW9 is at position 2, the RX mixer uses The correction signal is from the outside.
  • the integrated device when both the means for correcting the receiving channel and the means for correcting the transmitting channel are devices for baseband signal input, the integrated device can be as shown in FIG. 16 includes a plurality of SWs (SW1 to SW3 and SW5 to SW9, a plurality of SW1s, and a plurality of SW1s include SW1 in FIG. 13), IQR represents a quadrature receiver, and CH_1 to CH_N represent a plurality of transmission channels, and T1 represents The coupling channel is corrected, with CH_1 as the first transmission channel and CH_N as the second transmission channel. CP1 can represent the first endpoint, and CPn can represent the second endpoint.
  • LPF low pass filter
  • IQT represents an orthogonal transmitter
  • I and Q can represent the I component and the Q component of the signal vector of the IQR output, or the I of the signal vector of the input IQT.
  • the component and Q component, VGA represents a variable gain amplifier.
  • the LPF, the IQT and the IQR may be the original devices in the baseband portion, and the embodiment of the present application may multiplex the IQR of the baseband portion when correcting the deviation between the transmission channels.
  • the switching unit 206 or the switching unit 304 may include SW6 to SW8.
  • SW3 is closed, the device is used to correct the deviation between the transmission channels, and when SW6 to SW8 are both at position 1, the IQR can receive the feedback signal coupled from CP1 ( That is, the feedback signal output from the first end point is detected.
  • the IQR can receive the feedback signal coupled from the CPn (ie, detecting the feedback signal output from the second end point).
  • the LO is used to input the first signal and the second signal; when SW9 is at position 2, the input first signal and second signal are from the outside.
  • SW3 When SW1, SW2 and SW5 are both located at position 2, SW3 is open, the device is used to correct the deviation between the receiving channels, and when SW6 ⁇ SW8 are both at position 1, the first signal is coupled from CP1 (ie from the first end) Point feed), the IQR can receive the feedback signals of the receiving channels CH_1 and CH_N.
  • the second signal When SW6 ⁇ SW8 are both at position 2, the second signal is coupled from the CPn (ie, fed from the second endpoint), and the IQR can receive and receive. Feedback signals for channels CH_1 and CH_N.
  • the LO When SW9 is in position 1, the LO is used to generate the first signal and the second signal; when SW9 is in position 2, the first signal and the second signal are from the outside.
  • the device 400 (the device 400 may be a separate device 200 or device 300, or a device in which the device 200 and the device 300 are integrated) may be integrated in a semiconductor chip, the plurality of transmission channels It can also be integrated in a semiconductor chip, and the device 400 and the plurality of transmission channels can be integrated in the same semiconductor chip or integrated in different semiconductor chips.
  • FIG. 17 is a schematic diagram in which the apparatus 400 and a plurality of transmission channels are integrated in the semiconductor chip 0;
  • FIG. 17 is that the apparatus 400 is integrated in the semiconductor chip 1, the plurality of transmission channels
  • the device 400 can also be integrated in a wireless communication device, for example, the wireless communication device can be a base station or a terminal.
  • the wireless communication device can be a base station or a terminal.
  • the integrated semiconductor chips of the plurality of transmission channels to be corrected may be located outside the wireless communication device.
  • the device 400 and the plurality of transmission channels may be integrated in the terminal, and may be integrated in the same semiconductor chip, or may be integrated in different semiconductor chips.
  • FIG. 18 is a schematic flowchart of a method for correcting a deviation between a plurality of transmission channels according to an embodiment of the present disclosure, where multiple transmission channels include a first transmission channel, a second transmission channel, and a corrected coupling channel, and a corrected coupling channel An end point is connected to the first transmission channel, and the second end point of the correction coupling channel is connected to the second transmission channel.
  • the execution body of the method may be the device 200 provided by the above embodiment, or a chip integrated with the device 200, or Is a wireless communication device that includes the device 200. Referring to Figure 18, the method includes the following steps.
  • Step 1801 When the first signal is fed, the first signal detects the first signal vector according to the first feedback signal of the first transmission channel, and detects the second signal vector according to the second feedback signal of the second transmission channel.
  • Step 1802 When the second signal is fed, the second signal detects the third signal vector according to the third feedback signal of the first transmission channel, and detects the fourth signal vector according to the fourth feedback signal of the second transmission channel, and second.
  • the feedback signal and the third feedback signal are opposite in direction of transmission in the correction coupling channel.
  • Step 1803 Determine, according to the detected signal vector, a deviation correction value between the first transmission channel and the second transmission channel, where the deviation correction value is used to correct a deviation between the first transmission channel and the second transmission channel.
  • step 1801 - step 1803 can refer to the related description in the vector detecting unit 201 and the processing unit 202 in the device embodiment provided in FIG. 2 to FIG. 5 and FIG. 7 to FIG. The embodiments are not described herein again.
  • the method further includes: correcting a deviation between the first transmission channel and the third transmission channel, and/or correcting the second transmission channel and the third transmission channel Deviation between.
  • the method for correcting the deviation between the first transmission channel and the third transmission channel and correcting the deviation between the second transmission channel and the third transmission channel is consistent with the method for correcting the deviation between the first transmission channel and the second transmission channel.
  • the first transmission channel and the second transmission channel are receiving channels
  • the first signal is fed at the first end point and the second signal is fed to the second signal at the second end point
  • respectively Detecting a plurality of signal vectors according to the plurality of feedback signals of the first transmission channel and the second transmission channel, wherein the second feedback signal and the third feedback signal are opposite in a direction of transmission between the first end point and the second end point of the correction coupling channel
  • the deviation correction value between the first transmission channel and the second transmission channel can be determined according to the signal vector of the detected feedback signal, so that the transmission deviation of the corrected coupling channel is cancelled, and when the correction is performed according to the deviation correction value, the reception can be improved.
  • the accuracy of the channel correction is achieved.
  • FIG. 19 is a schematic flowchart of a method for correcting a deviation between multiple transmission channels according to an embodiment of the present disclosure, where multiple transmission channels include a first transmission channel, a second transmission channel, and a corrected coupling channel, and a corrected coupling channel An end point is connected to the first transmission channel, and the second end point of the correction coupling channel is connected to the second transmission channel.
  • the execution body of the method may be the device 300 provided by the above embodiment, or the chip integrated with the device 300, or Is a wireless communication device that includes the device 300. Referring to Figure 19, the method includes the following steps.
  • Step 1901 When the first signal is input, detecting the first signal vector according to the first feedback signal outputted from the first endpoint by the first transmission channel, and the second feedback signal outputting from the first endpoint according to the second transmission channel A second signal vector is detected.
  • Step 1902 When the second signal is input, detecting the third signal vector according to the third feedback signal outputted from the second end point of the first transmission channel, and detecting the fourth feedback signal outputted from the second end point according to the second transmission channel.
  • the four signal vectors, the second feedback signal and the third feedback signal are opposite in direction of transmission in the corrected coupling channel.
  • Step 1903 Determine, according to the detected signal vector, a deviation correction value between the first transmission channel and the second transmission channel, where the deviation correction value is used to correct a deviation between the first transmission channel and the second transmission channel.
  • step 1901 to step 1903 can be referred to the related description in the vector detecting unit 301 and the processing unit 302 in the device embodiment provided in FIG. 10 to FIG. 12, and the embodiment of the present application is no longer used herein. Narration.
  • the method further includes: correcting a deviation between the first transmission channel and the third transmission channel, and/or correcting the second transmission channel and the third transmission channel Deviation between.
  • the method for correcting the deviation between the first transmission channel and the third transmission channel and correcting the deviation between the second transmission channel and the third transmission channel is consistent with the method for correcting the deviation between the first transmission channel and the second transmission channel.
  • the first transmission channel and the second transmission channel are the transmission channels
  • the first signal and the second signal are respectively input, respectively
  • the feedback signals of the channel and the second transmission channel detect a plurality of signal vectors. Since the second feedback signal and the third feedback signal have opposite transmission directions in the correction coupling channel, the first signal vector may be determined according to the detected multiple signal vectors.
  • the deviation correction value between the transmission channel and the second transmission channel is such that the transmission deviation of the correction coupling channel is cancelled, and when the correction is performed according to the deviation correction value, the accuracy of the reception channel correction can be improved.

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Abstract

本申请提供一种用于校正多个传输通道间偏差的装置及方法,涉及通信技术领域,用于提高传输通道校正的准确性。多个传输通道包括第一传输通道和第二传输通道,第一传输通道和第二传输通道分别与校正耦合通道的第一端点和第二端点连接,该装置包括:矢量检测单元,用于第一信号在第一端点被馈入和第二信号在第二端点被馈入第二信号时,分别根据第一传输通道和第二传输通道的多个反馈信号检测多个信号矢量;处理单元,用于根据检测到的信号矢量,确定第一传输通道与第二传输通道间的偏差校正值,该偏差校正值用于校正第一传输通道与第二传输通道间的偏差。

Description

一种用于校正多个传输通道间偏差的装置及方法 技术领域
本申请涉及通信技术领域,尤其涉及一种用于校正多个传输通道间偏差的装置及方法。
背景技术
相控阵是一种相位控制电子扫描阵列,利用大量的天线单元排成阵列组成,每个天线单元都可有独立的开关控制,通过控制阵列中各天线单元的幅度和相位,调制电磁波的辐射方向,以合成具有指向性的聚焦扫描的波束。
5G通信系统中使用毫米波作为信号的载波,由于毫米波在大气中传输的衰减程度与低频电磁波相比大大增加,通过引入大型相控阵技术,可以增强5G通信系统中信号的定向性和等效全向辐射功率,提升系统通信距离和系统容量。大型相控阵技术使用了大数量的集成于一个或者多个芯片中的信号传输通道。高性能的相控阵要求通道具有高度一致性,但在生产和使用过程中,这些传输通道间会产生偏差,需要校准各通道的偏差。
目前,在校准芯片中的通道时,通常是在芯片内部设置信号发生器和正交接收机,通过信号发生器产生参考信号,并通过参考信号传输线的一端将其馈入传输通道,然后将传输通道的输出信号和信号发生器产生的参考信号输入正交接收机,从而得到每个传输通道的相位,两个传输通道的相位之间的差值再减去预估的传输线带来的传输延迟,从而得到最终的传输通道间的相位校正值。但是,传输线在生产和使用中也会产生偏差,通过预估的方式确定的传输线的传输延迟的准确性较低,从而导致得到的每个传输通道对应的相位校正值会存在较大误差,进而使得传输通道校正的准确性较低。
发明内容
本申请的实施例提供了一种用于校正多个传输通道间偏差的装置及方法,用于提高传输通道间偏差校正的准确性。
为达到上述目的,本申请的实施例采用如下技术方案:
第一方面,提供一种用于校正多个传输通道间偏差的装置,该多个传输通道包括第一传输通道、第二传输通道以及校正耦合通道,校正耦合通道的第一端点与第一传输通道连接,校正耦合通道的第二端点与第二传输通道连接,该装置包括:矢量检测单元,用于第一信号在第一端点被馈入时,根据第一传输通道的第一反馈信号检测第一信号矢量,以及根据第二传输通道的第二反馈信号检测第二信号矢量;矢量检测单元,还用于第二信号在第二端点被馈入时,根据第一传输通道的第三反馈信号检测第三信号矢量,以及根据第二传输通道的第四反馈信号检测第四信号矢量,第二反馈信号和第三反馈信号在校正耦合通道中的传输方向相反;处理单元,用于根据检测到的信号矢量,确定第一传输通道与第二传输通道间的偏差校正值,该偏差校正值用于校 正第一传输通道与第二传输通道间的偏差。
上述技术方案中,当第一传输通道和第二传输通道为接收通道时,第一信号在第一端点被馈入和第二信号在第二端点被馈入第二信号时,分别根据第一传输通道和第二传输通道的多个反馈信号检测多个信号矢量,由于第二反馈信号和第三反馈信号在校正耦合通道的第一端点与第二端点间的传输方向相反,因此可以根据检测到的反馈信号的信号矢量确定第一传输通道与第二传输通道间的偏差校正值,使得校正耦合通道的传输偏差被抵消,进而根据该偏差校正值进行校正时,可以提高接收通道校正的准确性。
在第一方面的第一种可能的实现方式中,第二反馈信号是第一信号经第一端点至第二端点间的校正耦合通道和第二传输通道传输后的信号;第三反馈信号是第二信号经第一传输通道和第二端点至第一端点间的校正耦合通道传输后的信号。
在第一方面的第一种可能的实现方式中,矢量检测单元包括正交接收机,第一传输通道和第二传输通道通过合路器合并,正交接收机通过耦合器与合路器连接;其中,第一信号在第一端点被馈入时,正交接收机分别对第一信号和第一反馈信号、第一信号和第二反馈信号进行混频处理,得到第一信号矢量和第二信号矢量;从第二信号在第二端点被馈入时,正交接收机分别对第二信号和第三反馈信号、以及第二信号和第四反馈信号进行混频处理,得到第三信号矢量和第四信号矢量。上述可能的实现方式中,通过正交接收机分别对第一端点馈入的第一信号与第一反馈信号和第二反馈信号进行混频处理,以及分别对第二端点馈入的第二信号与第三反馈信号和第四反馈信号进行混频处理,可以快速有效的得到多个反馈信号的信号矢量,提高信号矢量检测的效率。
在第一方面的第一种可能的实现方式中,该装置还包括分路器,分路器与正交接收机连接,分路器还通过切换单元与校正耦合通道的第一端点和第二端点连接;其中,当分路器通过切换单元与第一端点连接时,用于将第一信号分路至正交接收机和第一端点处;当分路器通过切换单元与第二端点连接时,用于将第二信号分路至正交接收机和第二端点处。可选的,切换单元为三端开关或者三端口巴伦器。上述可能的实现方式中,通过分路器和切换单元可以将第一信号分路至正交接收机和第一端点处,以及将第二信号分路至正交接收机和第二端点处,从而在一定程度上可以简化该装置的复杂度。
在第一方面的第一种可能的实现方式中,该装置为射频信号输入的装置,第一信号和第二信号为射频信号;其中,第一信号和第二信号是来自外部的射频信号;或者,该装置还包括与分路器连接的信号发生器,信号发生器用于产生射频信号,该射频信号包括第一信号和第二信号。上述可能的实现方式中,该装置可以用于校正射频传输通道间的偏差,提高射频传输通道校正的准确性。
在第一方面的第一种可能的实现方式中,该装置为中频信号输入的装置,该装置还包括与分路器连接的混频器,混频器用于对中频信号和校正信号进行混频处理,得到第一信号和第二信号;其中,校正信号来自外部,或者该装置还包括信号发生器,信号发生器用于产生校正信号。上述可能的实现方式中,该装置可以用于校正中频至射频的传输通道间的偏差,提高中射频传输通道校正的准确性。
在第一方面的第一种可能的实现方式中,该装置为基带信号输入的装置;其中,第一信号和第二信号来自外部;或者,该装置还包括与分路器连接的信号发生器,信号发生器用于产生第一信号和第二信号。上述可能的实现方式中,该装置可以用于校正基带至射频的传输通道间的偏差,提高基带至射频的传输通道校正的准确性。
在第一方面的第一种可能的实现方式中,当该多个传输通道还包括第三传输通道时,该装置还用于:校正第一传输通道与第三传输通道间的偏差,和/或,校正第二传输通道与第三传输通道间的偏差。上述可能的实现方式中,可以实现对多个传输通道中任意两个传输通道间偏差的校正,提高多个传输通道间偏差校正的准确性。
在第一方面的一种可能的实现方式中,该装置可以被集成在半导体芯片中,该多个传输通道也可以被集成在半导体芯片中,该装置和多个传输通道可以被集成在同一半导体芯片中,也可以被集成在不同的半导体芯片中。
第二方面,提供一种无线通信设备,该无线通信设备包括上述第一方面、或上述第一方面的任一种可能的实现方式所提供的装置。可选的,该设备可以为基站,也可以为终端。
第三方面,提供一种用于校正多个传输通道间偏差的方法,多个传输通道包括第一传输通道、第二传输通道以及校正耦合通道,校正耦合通道的第一端点与第一传输通道连接,校正耦合通道的第二端点与第二传输通道连接,该方法包括:第一信号在第一端点被馈入时,根据第一传输通道的第一反馈信号检测第一信号矢量,以及根据第二传输通道的第二反馈信号检测第二信号矢量;第二信号在第二端点被馈入时,根据第一传输通道的第三反馈信号检测第三信号矢量,以及根据第二传输通道的第四反馈信号检测第四信号矢量,第二反馈信号和第三反馈信号在校正耦合通道中的传输方向相反;根据检测到的信号矢量,确定第一传输通道与第二传输通道间的偏差校正值,该偏差校正值用于校正第一传输通道与第二传输通道间的偏差。
在第三方面的一种可能的实现方式中,第二反馈信号是第一信号经第一端点至第二端点间的校正耦合通道和第二传输通道传输后的信号;第三反馈信号是第二信号经第一传输通道和第二端点至第一端点间的校正耦合通道传输后的信号。
在第三方面的一种可能的实现方式中,检测第一信号矢量,以及检测第二信号矢量,包括:分别对第一信号和第一反馈信号、第一信号和第二反馈信号进行混频处理,得到第一信号矢量和第二信号矢量;检测第三信号矢量,以及检测第四信号矢量,包括:分别对第二信号和第三反馈信号、以及第二信号和第四反馈信号进行混频处理,得到第三信号矢量和第四信号矢量。
在第三方面的一种可能的实现方式中,当该多个传输通道还包括第三传输通道时,该方法还包括:校正第一传输通道与第三传输通道间的偏差,和/或,校正第二传输通道与第三传输通道间的偏差。
其中,上述第三方面或第三方面的任一种可能的实现方式所提供的方法的执行主体可以是上述第一方面、或第一方面任一种可能的实现方式所提供的装置或芯片,或者该执行主体可以是上述第二方面所提供的无线通信设备。
第四方面,提供一种用于校正多个传输通道间偏差的装置,多个传输通道包括第一传输通道、第二传输通道以及校正耦合通道,校正耦合通道的第一端点与第一传输 通道连接,校正耦合通道的第二端点与第二传输通道连接,该装置包括:矢量检测单元,用于当第一信号被输入时,根据第一传输通道从第一端点输出的第一反馈信号检测第一信号矢量、以及根据第二传输通道从第一端点输出的第二反馈信号检测第二信号矢量;矢量检测单元,还用于当第二信号被输入时,根据第一传输通道从第二端点输出的第三反馈信号检测第三信号矢量,以及根据第二传输通道从第二端点输出的第四反馈信号检测第四信号矢量,第二反馈信号和第三反馈信号在校正耦合通道中的传输方向相反;处理单元,用于根据检测到的信号矢量,确定第一传输通道与第二传输通道间的偏差校正值,其中,校正耦合通道的传输偏差相互抵消,该偏差校正值用于校正第一传输通道与第二传输通道间的偏差。
上述技术方案中,当第一传输通道和第二传输通道为发射通道时,第一信号和第二信号分别被输入时,分别根据从第一端点和第二端点输出的第一传输通道和第二传输通道的反馈信号,检测多个信号矢量,由于第二反馈信号和第三反馈信号在校正耦合通道中的传输方向相反,因此可以根据检测到的多个信号矢量,确定第一传输通道与第二传输通道间的偏差校正值,使得校正耦合通道的传输偏差被抵消,进而根据该偏差校正值进行校正时,可以提高接收通道校正的准确性。
在第四方面的一种可能的实现方式中,第二反馈信号是第一信号经第二传输通道和第二端点至第一端点间的校正耦合通道传输后的信号;第三反馈信号是第二信号经第一传输通道和第一端点至第二端点间的校正耦合通道传输后的信号。
在第四方面的一种可能的实现方式中,矢量检测单元包括正交接收机,正交接收机分别与校正耦合通道的第一端点和第二端点连接;当第一信号被输入时,正交接收机分别对第一信号和第一反馈信号、第一信号和第二反馈信号进行混频处理,得到第一信号矢量和第二信号矢量;当第二信号被输入时,正交接收机分别对第二信号和第三反馈信号、以及第二信号和第四反馈信号进行混频处理,得到第三信号矢量和第四信号矢量。上述可能的实现方式中,通过正交接收机分别对第一信号与第一反馈信号和第二反馈信号进行混频处理,以及分别对第二信号与第三反馈信号和第四反馈信号进行混频处理,可以快速有效的得到多个反馈信号的信号矢量,提高信号矢量检测的效率。
在第四方面的一种可能的实现方式中,该装置还包括分路器,分路器与第一传输通道、第二传输通道和正交接收机连接,以分别将第一信号和第二信号输入第一传输通道、第二传输通道和正交接收机;正交接收机还通过切换单元与校正耦合通道的第一端点和第二端点连接,其中,当正交接收机通过切换单元与第一端点连接时,正交接收机接收到第一反馈信号和第二反馈信号,当正交接收机通过切换单元与第二端点连接时,正交接收机接收到第三反馈信号和第四反馈信号。可选的,切换单元为三端开关或者三端口巴伦器。上述可能的实现方式中,通过分路器分别将第一信号和第二信号分路至第一传输通道、第二传输通道和正交接收机,正交接收机通过切换单元分别接收从第一端点输出的反馈信号和从第二端点输出的反馈信号,从而在一定程度上可以简化该装置的复杂度。
在第四方面的第一种可能的实现方式中,该装置为射频信号输入的装置,第一信号和第二信号为射频信号;其中,第一信号和第二信号是来自外部的射频信号;或者, 该装置还包括与分路器连接的信号发生器,信号发生器用于产生射频信号,该射频信号包括第一信号和第二信号。上述可能的实现方式中,该装置可以用于校正射频传输通道间的偏差,提高射频传输通道校正的准确性。
在第四方面的第一种可能的实现方式中,该装置为中频信号输入的装置,该装置还包括与分路器连接的混频器,混频器用于对中频信号和校正信号进行混频处理,得到第一信号和第二信号;其中,校正信号来自外部,或者该装置还包括信号发生器,信号发生器用于产生校正信号。上述可能的实现方式中,该装置可以用于校正中频至射频的传输通道间的偏差,提高中射频传输通道校正的准确性。
在第四方面的第一种可能的实现方式中,该装置为基带信号输入的装置;其中,第一信号和第二信号来自外部;或者,该装置还包括与分路器连接的信号发生器,信号发生器用于产生第一信号和第二信号。上述可能的实现方式中,该装置可以用于校正基带至射频的传输通道间的偏差,提高基带至射频的传输通道校正的准确性。
在第四方面的第一种可能的实现方式中,当该多个传输通道还包括第三传输通道时,该装置还用于:校正第一传输通道与第三传输通道间的偏差,和/或,校正第二传输通道与第三传输通道间的偏差。上述可能的实现方式中,可以实现对多个传输通道中任意两个传输通道间偏差的校正,提高多个传输通道间偏差校正的准确性。
在第四方面的一种可能的实现方式中,该装置可以被集成在半导体芯片中,该多个传输通道也可以被集成在半导体芯片中,该装置和多个传输通道可以被集成在同一半导体芯片中,也可以被集成在不同的半导体芯片中。
第五方面,提供一种无线通信设备,该无线通信设备包括上述第一方面、或上述第一方面的任一种可能的实现方式所提供的装置。可选的,该设备可以为基站,也可以为终端。
第六方面,提供一种用于校正多个传输通道间偏差的方法,多个传输通道包括第一传输通道、第二传输通道以及校正耦合通道,校正耦合通道的第一端点与第一传输通道连接,校正耦合通道的第二端点与第二传输通道连接,该方法包括:当第一信号被输入时,根据第一传输通道的第一反馈信号检测第一信号矢量,以及根据第二传输通道的第二反馈信号检测第二信号矢量;当第二信号被输入时,根据第一传输通道的第三反馈信号检测第三信号矢量,以及根据第二传输通道的第四反馈信号检测第四信号矢量;其中,第二反馈信号和所述第三反馈信号在所述校正耦合通道中的传输方向相反;根据检测到的信号矢量,确定第一传输通道与第二传输通道间的偏差校正值,该偏差校正值用于校正第一传输通道与第二传输通道间的偏差。
在第六方面的一种可能的实现方式中,第二反馈信号是第一信号经第二传输通道和第二端点至第一端点间的校正耦合通道传输后的信号;第三反馈信号是第二信号经第一传输通道和第一端点至第二端点间的校正耦合通道传输后的信号。
在第六方面的一种可能的实现方式中,检测第一信号矢量,以及检测第二信号矢量,包括:分别对第一信号和第一反馈信号、第一信号和第二反馈信号进行混频处理,得到第一信号矢量和第二信号矢量;检测第三信号矢量,以及检测第四信号矢量,包括:分别对第二信号和第三反馈信号、以及第二信号和第四反馈信号进行混频处理,得到第三信号矢量和第四信号矢量。
在第六方面的一种可能的实现方式中,当该多个传输通道还包括第三传输通道时,该方法还包括:校正第一传输通道与第三传输通道间的偏差,和/或,校正第二传输通道与第三传输通道间的偏差。
其中,上述第六方面或第六方面的任一种可能的实现方式所提供的方法的执行主体可以是上述第四方面、或第四方面任一种可能的实现方式所提供的装置或芯片,或者该执行主体可以是上述第五方面所提供的无线通信设备。
需要说明的是,上述各方面所涉及的矢量检测单元可以是指用于检测信号幅度和/或信号相位的单元,信号幅度和信号相位可以组成一个矢量。可选的,矢量检测单元可以输出两个分量信号,两个分量信号可以用于确定信号幅度和信号相位,比如,矢量检测单元可以包括正交接收机或者希尔伯特(Hilbert)滤波器,正交接收机或Hilbert滤波器可用于输出的两个分量信号分别为I和Q,根据如下公式(a)和公式(b)可以确定信号幅度A和信号相位θ,或者可直接用于输出信号幅度A和信号相位θ。
A=10 lg(l 2+Q 2) (a)
Figure PCTCN2017120207-appb-000001
可以理解地,上文提供的任一种用于校正多个传输通道间偏差的装置均用于执行上述所提供的用于校正多个传输通道间偏差的方法,因此,其所能达到的有益效果可参考上文所提供的对应装置中的有益效果,此处不再赘述。
附图说明
图1为本申请实施例提供的一种天线单元和芯片的组合形式的结构示意图;
图2为本申请实施例提供的第一种装置的结构示意图;
图3为本申请实施例提供的第二种装置的结构示意图;
图4为本申请实施例提供的第三种装置的结构示意图;
图5为本申请实施例提供的第四种装置的结构示意图;
图6为本申请实施例提供的一种切换单元的结构示意图;
图7为本申请实施例提供的第五种装置的结构示意图;
图8为本申请实施例提供的第六种装置的结构示意图;
图9为本申请实施例提供的第七种装置的结构示意图;
图10为本申请实施例提供的第八种装置的结构示意图;
图11为本申请实施例提供的第九种装置的结构示意图;
图12为本申请实施例提供的第十种装置的结构示意图;
图13为本申请实施例提供的一种TRX模块的结构示意图;
图14为本申请实施例提供的第十一种装置的结构示意图;
图15为本申请实施例提供的第十二种装置的结构示意图;
图16为本申请实施例提供的第十三种装置的结构示意图;
图17为本申请实施例提供的一种半导体芯片的结构示意图;
图18为本申请实施例提供的一种用于校正多个传输通道间偏差的方法的流程示意图;
图19为本申请实施例提供的另一种用于校正多个传输通道间偏差的方法的流程 示意图。
具体实施方式
相控阵是一种相位控制电子扫描阵列,利用大量的天线单元排成阵列组成,每个天线单元都可有独立的开关控制,通过控制阵列中各天线单元的幅度和相位,调制电磁波的辐射方向,以合成具有指向性的聚焦扫描的波束。使用相控阵技术的通信系统中的设备(比如,基站或者终端等)可以包括天线单元和芯片(chip),一个芯片中可以包括多个射频通道,一个射频通道和一个天线单元可以构成设备中一个用于信号接收或发射的通道。在本申请实施例中,射频通道、以及射频通道和天线单元构成的通道都可以称为传输通道。
如图1所示,以天线单元为贴片天线,相控阵包括4×4的天线阵列为例,相控阵中的天线单元和芯片在印刷设计时可以有两种组合形式,即AOB(antenna on PCB)和AIP(antenna in package)。如图1中的(a)所示,AOB是指天线单元在印刷电路板(print circuit board,PCB)中,天线单元和芯片可以分别位于PCB的两面(即天线单元印刷在PCB的一面,芯片贴附在PCB的另一面),也可以位于PCB的同一面(即天线单元印刷在PCB的一面,同时芯片也贴附在该面上),图1中以其位于不同面为例进行说明。如图1中的(b)所示,AIP是指天线单元位于芯片的封装(package)中,天线单元与芯片封装在一起,天线单元可以位于芯片的封装顶部,芯片贴附在PCB上。
图2为本申请实施例提供的一种用于校正多个传输通道间偏差的装置,该多个传输通道包括第一传输通道、第二传输通道和校正耦合通道,校正耦合通道的第一端点与第一传输通道连接,校正耦合通道的第二端点与第二传输通道连接,第一传输通道和第二传输通道均为接收通道。如图2所示,该装置200包括:矢量检测单元201和处理单元202。
矢量检测单元201,用于当第一信号在第一端点被馈入时,根据第一传输通道的第一反馈信号检测第一信号矢量,以及根据第二传输通道的第二反馈信号检测第二信号矢量。
矢量检测单元201,还用于当第二信号在第二端点被馈入时,根据第一传输通道的第三反馈信号检测第三信号矢量,以及根据第二传输通道的第四反馈信号检测第四信号矢量,第二反馈信号和第三反馈信号在校正耦合通道中的传输方向相反。
其中,矢量检测单元201可以是指用于检测信号幅度和/或信号相位的单元,信号幅度和信号相位可以组成一个矢量。可选的,矢量检测单元201可以输出两个分量信号,两个分量信号可以用于确定信号幅度和信号相位,比如,矢量检测单元201可以包括正交接收机或者Hilbert滤波器,正交接收机和Hilbert滤波器可用于输出的两个分量信号分别为I和Q,根据如下公式(a)和公式(b)可以确定信号幅度A和信号相位θ,或者可直接用于输出信号幅度A和信号相位θ。
A=10 lg(l 2+Q 2) (a)
Figure PCTCN2017120207-appb-000002
另外,校正耦合通道可以用于向第一传输通道和第二传输通道馈入信号,比如, 在第一端点馈入第一信号,在第二端点馈入第二信号,第一传输通道和第二传输通道可以接收校正耦合通道馈入的信号。校正耦合通道可以为传输线,第一传输通道可以通过耦合器(coupler,CP)与校正耦合通道的第一端点连接,第二传输通道也可以通过耦合器与校正耦合通道的第二端点连接。
当第一信号在校正耦合通道的第一端点被馈入时,第一信号经第一传输通道传输后,矢量检测单元201可以接收到第一反馈信号,矢量检测单元201检测第一反馈信号可以得到第一信号矢量。此外,第一信号经过校正耦合通道和第二传输通道传输后,矢量检测单元201可以接收到第二反馈信号,矢量检测单元201检测第二反馈信号可以得到第二信号矢量。
当第二信号在校正耦合通道的第二端点被馈入时,第二信号经校正耦合通道和第一传输通道传输后,矢量检测单元201可以接收到第三反馈信号,矢量检测单元201检测第三反馈信号可以得到第三信号矢量;第二信号经过第二传输通道传输后,矢量检测单元201可以接收到第四反馈信号,矢量检测单元201检测第四反馈信号可以得到第四信号矢量。
其中,第一信号在校正耦合通道的第一端点与第二端点间的传输方向是自第一端点至第二端点,第二信号在校正耦合通道的第一端点与第二端点间的传输方向是自第二端点至第一端点,因此,矢量检测单元201接收到的第二反馈信号和第三反馈信号在校正耦合通道的第一端点与第二端点间的传输方向相反。
另外,矢量检测单元201可以对接收到的每个反馈信号进行一次或者多次检测,当对每个反馈信号进行一次检测时,得到一个信号矢量,当对每个反馈信号进行多次检测时,得到多个信号矢量。比如,矢量检测单元201对第一反馈信号进行一次检测,得到一个第一信号矢量;或者,矢量检测单元201对第一反馈信号进行多次检测,得到多个第一信号矢量。
处理单元202,用于根据检测到的信号矢量,确定第一传输通道与第二传输通道间的偏差校正值,该偏差校正值用于校正第一传输通道与第二传输通道间的偏差。
其中,当检测到的每个信号矢量包括一个信号矢量时,处理单元202可以根据一个第一信号矢量、一个第二信号矢量、一个第三信号矢量和一个第四信号矢量,确定第一传输通道与第二传输通道间的偏差校正值;当检测到的每个信号矢量包括多个信号矢量时,处理单元202可以根据多个第一信号矢量、多个第二信号矢量、多个第三信号矢量和多个第四信号矢量,确定第一传输通道与第二传输通道间的偏差校正值。
另外,每个信号矢量可以包括幅度信息和相位信息,该偏差校正值可以包括第一传输通道与第二传输通道间的幅度校正值,也可以包括第一传输通道与第二传输通道间的相位校正值。处理单元202可以根据检测到的信号矢量中的幅度信息,确定该幅度校正值,也可以根据检测到的信号矢量中的相位信息,确定该相位校正值。
由于第二反馈信号和第三反馈信号在第一端点至第二端点间的校正耦合通道中的传输方向相反,因此,在确定第一传输通道与第二传输通道间的偏差校正值时,可以通过抵消校正耦合通道的传输偏差的方式,直接得到该偏差校正值。
为便于理解,这里以每个信号矢量包括一个信号矢量为例进行说明。若第一信号矢量为(A 1,θ 1),第二信号矢量为(A 2,θ 2),第三信号矢量为(A 3,θ 3),第四 信号矢量为(A 4,θ 4),则处理单元202可以根据A 1、A 2、A 3和A 4确定第一传输通道与第二传输通道间的幅度校正值△A,根据θ 1、θ 2、θ 3和θ 4确定相位校正值△θ。示例性的,处理单元202可以根据如下公式(1)确定△A,根据如下公式(2)确定第一传输通道与第二传输通道间的△θ。
Figure PCTCN2017120207-appb-000003
Figure PCTCN2017120207-appb-000004
可选的,校正耦合通道的传输偏差可以包括传输幅度偏差和传输相位偏差,处理单元202还可以用于根据检测到的信号矢量,确定第一端点与第二端点间的校正耦合通道对信号造成的传输幅度偏差和传输相位偏差。示例性的,处理单元202可以分别根据如下公式(3)和(4)确定校正耦合通道对信号造成的传输幅度偏差γ和传输相位偏差β。
Figure PCTCN2017120207-appb-000005
Figure PCTCN2017120207-appb-000006
上述公式(1)~公式(4)仅为示例性的,处理单元202还可以通过其它方式根据检测到的信号矢量确定第一传输通道与第二传输通道间的幅度校正值和相位校正值,以及确定校正耦合通道对信号造成的传输幅度偏差和传输相位偏差。
当确定第一传输通道与第二传输通道间的幅度校正值和相位校正值后,可以根据该幅度校正值补偿第一传输通道或补偿第二传输通道,以校正第一传输通道与第二传输通道间的幅度偏差;和/或,根据该相位校正值补偿第一传输通道或补偿第二传输通道,以校正第一传输通道与第二传输通道间的相位偏差。比如,在第一传输通道和/或中设置移相器(phase shifter,PS),通过PS设置第一传输通道与第二传输通道间的幅度校正值和相位校正值。
在本申请实施例中,当第一传输通道和第二传输通道均为接收通道时,第一信号在第一端点被馈入和第二信号在第二端点被馈入第二信号时,分别根据第一传输通道和第二传输通道的多个反馈信号检测多个信号矢量,由于第二反馈信号和第三反馈信号在校正耦合通道的第一端点与第二端点间的传输方向相反,因此可以根据检测到的反馈信号的信号矢量确定第一传输通道与第二传输通道间的偏差校正值,使得校正耦合通道的传输偏差被抵消,进而根据该偏差校正值进行校正时,可以提高接收通道校正的准确性。
进一步的,如图3所示,矢量检测单元201可以包括正交接收机2011,第一传输通道和第二传输通道通过合路器203合并,正交接收机2011通过耦合器204与合路器203连接。
其中,第一信号在第一端点被馈入,正交接收机2011分别对第一信号和第一反馈信号、第一信号和第二反馈信号进行混频处理,得到第一信号矢量和第二信号矢量。第二信号在第一端点被馈入,正交接收机2011分别对第二信号和第三反馈信号、第二信号和第四反馈信号进行混频处理,得到第三信号矢量和第四信号矢量。
具体的,第一信号在第一端点被馈入,当打开第一传输通道、关闭第二传输通道 时,第一信号经过第一传输通道传输至合路器203,正交接收机2011接收到耦合器204从合路器203耦合出的第一反馈信号,正交接收机2011对第一信号和第一反馈信号进行混频处理,得到第一信号矢量,当关闭第一传输通道、打开第二传输通道时,第一信号经过第一端点至第二端点间的校正耦合通道和第二传输通道传输至合路器203,正交接收机2011接收到耦合器204从合路器203耦合出的第二反馈信号,正交接收机2011对第一信号和第二反馈信号进行混频处理,得到第二信号矢量。同理,第二信号在第二端点被馈入,当打开第一传输通道、关闭第二传输通道时,第二信号经过第一端点至第二端点间的校正耦合通道和第一传输通道传输至合路器203,正交接收机2011接收到耦合器204从合路器203耦合出的第三反馈信号,正交接收机2011对第二信号和第三反馈信号进行混频处理,得到第三信号矢量,当关闭第一传输通道、打开第二传输通道时,第二信号经过第二传输通道传输至合路器203,正交接收机2011接收到耦合器204从合路器203耦合出的第四反馈信号,正交接收机2011对第二信号和第四反馈信号进行混频处理,得到第四信号矢量。
或者,如图4所示,矢量检测单元201可以包括第一正交接收机2012和第二接收机2013,第一正交接收机2012通过第一耦合器2041与第一传输通道连接,第二正交接收机2013通过第二耦合器2042与第二传输通道连接。其中,第一信号在第一端点被馈入,第一信号经过第一传输通道传输后,第一正交接收机2012接收到第一耦合器2041从第一传输通道耦合出的第一反馈信号,第一正交接收机2012对第一信号和第一反馈信号进行混频处理,得到第一信号矢量;第一信号经过第一端点至第二端点间的校正耦合通道和第二传输通道传输后,第二正交接收机2013接收到第二耦合器2042从第二传输通道耦合出的第二反馈信号,第二正交接收机2013对第一信号和第二反馈信号进行混频处理,得到第二信号矢量。第二信号在第二端点被馈入,第二信号经过第二端点至第一端点间的校正耦合通道和第一传输通道传输后,第一正交接收机2012接收到第一耦合器2041从第一传输通道耦合出的第三反馈信号,第一正交接收机2012对第二信号和第三反馈信号进行混频处理,得到第三信号矢量;第二信号经过第二传输通道传输后,第二正交接收机2013接收到第二耦合器2042从第二传输通道耦合出的第四反馈信号,第二正交接收机2013对第二信号和第四反馈信号进行混频处理,得到第四信号矢量。
进一步的,结合图3,如图5所示,该装置还包括分路器205,分路器205与正交接收机2011连接,分路器205还通过切换单元206与校正耦合通道的第一端点和第二端点连接。可选的,如图6所示,切换单元206可以为三端口开关,或者三端口巴伦器,其中端口IN与分路器205连接,端口1和端口2分别与第一端点和第二端点连接。
当分路器205通过切换单元206与校正耦合通道的第一端点连接时,分路器205用于将第一信号分路至正交接收机2011和第一端点处,分路至正交接收机2011的第一信号用于与第一反馈信号和第二反馈信号进行混频处理,分路至第一端点处的第一信号用于从第一端点馈入。当分路器205通过切换单元206与第二端点连接时,分路器205用于将第二信号分路至正交接收机2011和第二端点处,分路至正交接收机2011的第二信号用于与第三反馈信号和第四反馈信号进行混频处理,分路至第二端点处的第二信号用于从第二端点馈入。
进一步的,结合图5,如图7所示,该装置200可以为射频(radio frequency,RF)信号输入的装置,比如该射频装置为射频芯片或射频模块。其中,第一信号和第二信号可以是来自外部的射频信号,比如,来自外部的射频信号可以由外部的本地振荡器(local oscillator,LO)产生。或者,该装置还包括与分路器205连接的信号发生器207,信号发生器207用于产生射频信号,该射频信号包括第一信号和第二信号。可选的,该信号发生器207可以为本地振荡器。图7中以信号发生器207为LO为例进行说明,LO_IN表示外部LO输入。
进一步的,结合图5,如图8所示,该装置200可以为中频(intermediate frequency,IF)信号输入的装置,比如该装置中包含中频芯片或中频模块,则该装置还可以包括混频器208,混频器208用于对中频信号和校正信号进行混频处理,得到第一信号和第二信号。其中,校正信号可以来自外部,比如,来自外部的校正信号可以由外部的LO产生。或者,该装置还包括与分路器205通过混频器208连接的信号发生器209,该信号发生器209用于产生用于校正信号。可选的,该信号发生器209可以为LO。图8中以信号发生器209为LO为例进行说明,LO_IN表示外部LO输入,IF表示中频信号输入端。
进一步的,结合图5,如图9所示,该装置200可以为基带信号输入的装置,比如该装置中包含基带芯片或基带模块。其中,第一信号和第二信号来自外部,比如,第一信号和第二信号可以由外部的LO产生的;或者,该装置还包括与分路器205连接的信号发生器210,信号发生器210用于产生第一信号和第二信号。图9中以信号发生器210为LO为例进行说明,LO_IN表示外部LO输入。
在实际应用中,基带信号输入的装置通常可以包括基带模块、中频模块和射频模块,当该装置为基带信号输入的装置时,第一信号和第二信号可以由射频模块提供,也可以由中频模块提供,或者由基带模块提供,本申请实施例对此不作具体限定。
进一步的,该多个传输通道还包括第三传输通道,第三传输通道与校正耦合通道的第三端点连接,该装置还用于:校正第一传输通道与第三传输通道间的偏差,和/或,校正第二传输通道与第三传输通道间的偏差。
这里以校正第一传输通道与第三传输通道间的偏差为例进行说明。则矢量检测单元201,还用于第一信号在第一端点被馈入时,根据第一传输通道的第五反馈信号检测第五信号矢量,以及根据第三传输通道的第六反馈信号检测第六信号矢量;矢量检测单元201,还用于第三信号在第三端点被馈入时,根据第一传输通道的第七反馈信号检测第七信号矢量,以及根据第三传输通道的第八反馈信号检测第八信号矢量,第六反馈信号和第七反馈信号在校正耦合通道中的传输方向相反;处理单元202,还用于根据检测到的信号矢量,确定第一传输通道与第三传输通道间的偏差校正值,其中,校正耦合通道的传输偏差相互抵消,该偏差校正值用于校正第一传输通道与第三传输通道间的偏差。
需要说明的是,该装置200还用于校正第一传输通道与第三传输通道间的偏差,和/或,校正第二传输通道与第三传输通道间的偏差的具体实现方式,与上述校正第一传输通道与第二传输通道间的偏差的具体实现方式类似,具体参见上述校正第一传输通道与第二传输通道间的偏差的相关描述,本申请实施例在此不再赘述。
图10为本申请实施例提供的另一种用于校正多个传输通道间偏差的装置,该多个传输通道包括第一传输通道、第二传输通道和校正耦合通道,校正耦合通道的第一端点与第一传输通道连接,校正耦合通道的第二端点与第二传输通道连接,第一传输通道和第二传输通道均为发射通道。如图10所示,该装置300包括:矢量检测单元301和处理单元302。
矢量检测单元301,用于当第一信号被输入第一传输通道和第二传输通道时,根据第一传输通道从第一端点输出的第一反馈信号检测第一信号矢量、以及根据第二传输通道从第一端点输出的第二反馈信号检测第二信号矢量。
矢量检测单元301,还用于当第二信号被输入第一传输通道和第二传输通道时,根据第一传输通道从第二端点输出的第三反馈信号检测第三信号矢量,以及根据第二传输通道从第二端点输出的第四反馈信号检测第四信号矢量,第二反馈信号和第三反馈信号在校正耦合通道中的传输方向相反。
其中,矢量检测单元301可以是指用于检测信号幅度和/或信号相位的单元,信号幅度和信号相位可以组成一个矢量。可选的,矢量检测单元301可以输出两个分量信号,两个分量信号可以用于确定信号幅度和信号相位。
另外,第一传输通道和第二传输通道均为发射通道,可以发射用于校正的第一信号和第二信号。校正耦合通道可以用于接收第一传输通道和第二传输通道发射的信号。可选的,校正耦合通道可以为传输线,第一传输通道可以通过耦合器(coupler,CP)与校正耦合通道的第一端点连接,第二传输通道也可以通过耦合器与校正耦合通道的第二端点连接。
当第一信号被输入第一传输通道和第二传输通道时,第一信号经第一传输通道传输后,矢量检测单元301可以在校正耦合通道的第一端点接收到第一反馈信号,矢量检测单元301检测第一反馈信号可以得到第一信号矢量。此外,第一信号经过第二传输通道和校正耦合通道传输后,矢量检测单元301可以在校正耦合通道的第一端点接收到第二反馈信号,矢量检测单元301检测第二反馈信号可以得到第二信号矢量。
当第二信号被输入第一传输通道和第二传输通道时,第一信号经第一传输通道和校正耦合通道传输后,矢量检测单元301可以在校正耦合通道的第二端点接收到第三反馈信号,矢量检测单元301检测第三反馈信号可以得到第三信号矢量。此外,第二信号经过第二传输通道传输后,矢量检测单元301可以在校正耦合通道的第二端点接收到第四反馈信号,矢量检测单元301检测第四反馈信号可以得到第四信号矢量。
其中,第二反馈信号在校正耦合通道的第一端点与第二端点间的传输方向是自第二端点至第一端点,第三反馈信号在校正耦合通道的第一端点与第二端点间的传输方向是自第一端点至第二端点,因此,矢量检测单元301接收到的第二反馈信号和第三反馈信号在校正耦合通道的第一端点与第二端点间的传输方向相反。
另外,矢量检测单元301可以对接收到的每个反馈信号进行一次或者多次检测,当对每个反馈信号进行一次检测时,得到一个信号矢量,当对每个反馈信号进行多次检测时,得到多个信号矢量。比如,矢量检测单元301对第一反馈信号进行一次检测,得到一个第一信号矢量;或者,矢量检测单元301对第一反馈信号进行多次检测,得到多个第一信号矢量。
处理单元302,用于根据检测到的信号矢量,确定第一传输通道与第二传输通道间的偏差校正值,该偏差校正值用于校正第一传输通道与第二传输通道间的偏差。
其中,当检测到的每个信号矢量包括一个信号矢量时,处理单元302可以根据一个第一信号矢量、一个第二信号矢量、一个第三信号矢量和一个第四信号矢量,确定第一传输通道与第二传输通道间的偏差校正值;当检测到的每个信号矢量包括多个信号矢量时,处理单元302可以根据多个第一信号矢量、多个第二信号矢量、多个第三信号矢量和多个第四信号矢量,确定第一传输通道与第二传输通道间的偏差校正值。
另外,每个信号矢量可以包括幅度信息和相位信息,该偏差校正值可以包括第一传输通道与第二传输通道间的幅度校正值,也可以包括第一传输通道与第二传输通道间的相位校正值。处理单元302可以根据检测到的信号矢量中的幅度信息,确定该幅度校正值,也可以根据检测到的信号矢量中的相位信息,确定该相位校正值。
由于第二反馈信号和第三反馈信号在第一端点至第二端点间的校正耦合通道中的传输方向相反,因此,在确定第一传输通道与第二传输通道间的偏差校正值时,可以使得校正耦合通道的传输偏差被抵消,进而可以直接根据该偏差校正值,校正第一传输通道与第二传输通道间的偏差。
需要说明的是,根据检测到的信号矢量确定第一传输通道与第二传输通道间的偏差校正值、以及校正第一传输通道与第二传输通道间的偏差的方式,与上述图2所示的实施例中确定第一传输通道与第二传输通道间的偏差校正值、以及校正第一传输通道与第二传输通道间的偏差的方式一致,具体参见上述实施例中描述,本申请实施例在此不再赘述。
在本申请实施例中,当第一传输通道和第二传输通道为发射通道时,第一信号和第二信号分别被输入时,分别通过从第一端点和第二端点输出的第一传输通道和第二传输通道的反馈信号,检测多个信号矢量,由于第二反馈信号和第三反馈信号在校正耦合通道中的传输方向相反,因此可以根据检测到的多个信号矢量,确定第一传输通道与第二传输通道间的偏差校正值,使得校正耦合通道的传输偏差被抵消,进而根据该偏差校正值进行校正时,可以提高接收通道校正的准确性。
进一步的,如图11所示,矢量检测单元301可以包括正交接收机3011,正交接收机3011分别与校正耦合通道的第一端点和第二端点连接;
其中,当第一信号被输入第一传输通道和第二传输通道,且检测第一信号矢量和第二信号矢量时,正交接收机3011分别对第一信号和第一反馈信号、第一信号和第二反馈信号进行混频处理,得到第一信号矢量和第二信号矢量。当第二信号被输入第一传输通道和第二传输通道,且检测第三信号矢量和第四信号矢量时,正交接收机3011分别对第二信号和第三反馈信号、以及第二信号和第四反馈信号进行混频处理,得到第三信号矢量和第四信号矢量。
具体的,第一传输通道和第二传输通道可以包括单独的输入端,也可以包括同一输入端,图11中以其包括同一输入端为例进行说明。若第一传输通道和第二传输通道包括单独的输入端,分别向第一传输通道和第二传输通道输入第一信号,则正交接收机3011通过第一端点分别接收到第一反馈信号和第二反馈信号,正交接收机3011对第一信号和第一反馈信号进行混频处理,得到第一信号矢量,对第一信号和第二反馈 信号进行混频处理,得到第二信号矢量。同理,第一传输通道和第二传输通道包括单独的输入端,分别向第一传输通道和第二传输通道输入第二信号,则正交接收机3011通过第二端点分别接收到第三反馈信号和第四反馈信号,正交接收机3011对第二信号和第三反馈信号进行混频处理,得到第三信号矢量,对第二信号和第四反馈信号进行混频处理,得到第四信号矢量。
若第一传输通道和第二传输通道包括同一输入端,当打开第一传输通道、关闭第二传输通道时,正交接收机3011可以通过第一端点接收到第一反馈信号,正交接收机3011对第一信号和第一反馈信号进行混频处理,得到第一信号矢量,当关闭第一传输通道、打开第二传输通道时,正交接收机3011可以通过第一端点接收到第二反馈信号,正交接收机3011对第一信号和第二反馈信号进行混频处理,得到第二信号矢量。同理,第一传输通道和第二传输通道包括同一输入端,当打开第一传输通道、关闭第二传输通道时,正交接收机3011可以通过第二端点接收到第三反馈信号,正交接收机3011对第二信号和第三反馈信号进行混频处理,得到第三信号矢量,当关闭第一传输通道、打开第二传输通道时,正交接收机3011可以通过第二端点接收到第四反馈信号,正交接收机3011对第二信号和第四反馈信号进行混频处理,得到第四信号矢量。
进一步的,结合图11,参见图12,该装置还包括分路器303,分路器303与第一传输通道、第二传输通道和正交接收机3011连接,分路器303用于分别将第一信号和第二信号输入第一传输通道、第二传输通道和正交接收器3011。正交接收机3011通过切换单元304与校正耦合通道的第一端点和第二端点连接,当正交接收机3011通过切换单元304与第一端点连接时,正交接收机3011可以接收到从第一端点输出的第一反馈信号和第二反馈信号,当正交接收机3011通过切换单元304与第二端点连接时,正交接收机3011接收到从第二端点输出的第三反馈信号和第四反馈信号。可选的,切换单元304可以为图6所示的三端口开关或者三端口巴伦器,其中,端口IN与分路器303连接,端口1和端口2分别与第一端点和第二端点连接。
其中,该装置可以为射频信号输入的装置,比如该装置为射频芯片或射频模块。其中,第一信号和第二信号可以是来自外部的射频信号,比如,来自外部的射频信号可以由外部的LO产生。或者,该装置还包括与分路器303连接的信号发生器,该信号发生器用于产生射频信号,该射频信号包括第一信号和第二信号。可选的,该信号发生器可以为LO。
或者,该装置可以为中频信号输入的装置,比如该装置中包含中频芯片或中频模块,则该装置还可以包括混频器,混频器用于对中频信号和校正信号进行混频处理,得到第一信号和第二信号。其中,校正信号可以来自外部,比如,来自外部的校正信号可以由外部的LO产生。或者,该装置还包括与分路器303通过混频器连接的信号发生器,该信号发生器用于产生用于校正信号。可选的,该信号发生器可以为LO。
或者,该装置可以为基带信号输入的装置,比如该装置中包含基带芯片或基带模块。其中,第一信号和第二信号来自外部,比如,第一信号和第二信号可以由外部的LO产生的;或者,该装置还包括与分路器303连接的信号发生器,信号发生器用于产生第一信号和第二信号。可选的,该信号发生器可以为LO。
需要说明的是,当该装置为射频信号输入的装置、中频信号输入的装置或者基带 信号输入的装置时,分路器303与各个信号发生器之间的连接关系,分别与图7~图9所示的分路器205与信号发生器207、信号发生器209和信号发生器210之间的连接关系一致,具体参见图7~图9中的相关描述。
在实际应用中,第一传输通道和第二传输通道既可以作为发射通道,也可以作为接收通道,第一传输通道和第二传输通道可以通过TRX模块进行切换,当TRX模块为接收(RX)状态时,第一传输通道和第二传输通道为接收通道,当TRX模块为发射(TX)状态时,第一传输通道和第二传输通道为发射通道。因此,可以将用于校正接收通道的装置和用于校正发射通道的装置集成为一个整体。
如图13所示为一种TRX模块的结构示意图,以发射通道中包括移相器(PS)和功率放大器(power amplifier,PA)、接收通道包括PS和低噪声放大器(low noise amplifier,LNA)为例进行说明。图13中的(a)为收发独立PS的TRX模块,当SW1位于位置1时,TRX模块为TX状态,当SW1位于位置2时,TRX模块为RX状态。图13中的SW表示开关(switch),图13中的(b)为收发共享PS的TRX模块,当多个SW1均位于位置1时,TRX模块为TX状态,当多个SW1均位于位置2时,TRX模块为RX状态。
示例性的,结合图13,当用于校正接收通道的装置和用于校正发射通道的装置均为射频信号输入的装置时,集成后的装置可以如图14所示。图14中包括多个SW(SW1~SW9,SW1有多个,多个SW1包括图13中的SW1),IQR表示正交接收机(即2011或3011),CH_1~CH_N表示多个传输通道,T1表示校正耦合通道,以CH_1为第一传输通道,CH_N为第二传输通道为例,CP1可以表示第一端点,CPn可以表示第二端点,I和Q可以表示IQR输出的信号矢量的I分量和Q分量。图14中VGA表示可变增益放大器(variable gain amplifier),切换单元206或切换单元304可以包括SW6~SW8,RF0为射频信号的输入端。
其中,当SW1~SW5均位于位置1时,该装置用于校正发射通道间的偏差,且当SW6~SW8均位于位置1时,IQR可以接收到从CP1耦合出的反馈信号(即检测第一端点输出的反馈信号),当SW6~SW8均位于位置2时,IQR可以接收到从CPn耦合的反馈信号(即检测第二端点输出的反馈信号)。当SW9位于位置1时,LO用于输入第一信号和第二信号;当SW9位于位置2时,输入的第一信号和第二信号来自外部。
当SW1~SW5均位于位置2时,该装置用于校正接收通道间的偏差,且当SW6~SW8均位于位置1时,第一信号从CP1耦合输入(即从第一端点馈入),IQR可以接收到从CP0(即图3中的耦合器204)耦合出的接收通道CH_1和CH_N的反馈信号,当SW6~SW8均位于位置2时,IQR可以接收到从CP0耦合出的接收通道CH_1和CH_N的反馈信号。当SW9位于位置1时,LO用于产生第一信号和第二信号;当SW9位于位置2时,第一信号和第二信号来自外部。
示例性的,结合图13,当用于校正接收通道的装置和用于校正发射通道的装置均为中频信号输入的装置时,集成后的装置可以如图15所示。图15中包括多个SW(SW1~SW9,SW1有多个,多个SW1包括图13中的SW1),IQR表示正交接收机(即2011或3011),CH_1~CH_N表示多个传输通道,T1表示校正耦合通道,以CH_1为第一传输通道,CH_N为第二传输通道为例,CP1可以表示第一端点,CPn可以表 示第二端点,TX混频器为发射通道的混频器,RX混频器为接收通道的混频器,I和Q可以IQR输出的信号矢量的I分量和Q分量。图15中VGA表示可变增益放大器,切换单元206或切换单元304可以包括SW6~SW8,IF0为中频信号的输入端。
其中,当SW1、SW2和SW5均位于位置1,SW3闭合,SW4打开时,该装置用于校正发射通道间的偏差,且当SW6~SW8均位于位置1时,IQR可以接收到从CP1耦合的反馈信号(即检测从第一端点输出的反馈信号),当SW6~SW8均位于位置2时,IQR可以接收到从CPn耦合的反馈信号(即检测从第二端点输出的反馈信号)。当SW9位于位置1时,LO用于产生校正信号,TX混频器对中频信号和校正信号处理后向发射通道CH_1和CH_N输入第一信号和第二信号;当SW9位于位置2时,TX混频器所使用的校正信号来自外部。
当SW1、SW2和SW5均位于位置2,SW3和SW4均闭合时,该装置用于校正接收通道间的偏差,且当SW6~SW8均位于位置1时,第一信号从CP1耦合输入(即从第一端点馈入),IQR可以接收到从CP0耦合出的接收通道CH_1和CH_N的反馈信号,当SW6~SW8均位于位置2时,IQR可以接收到接收通道CH_1和CH_N的反馈信号。当SW9位于位置1时,LO用于产生校正信号,且RX混频器对中频信号和校正信号处理后输入第一信号和第二信号;当SW9位于位置2时,RX混频器所使用的校正信号来自外部。
示例性的,结合图13,当用于校正接收通道的装置和用于校正发射通道的装置均为基带信号输入的装置时,集成后的装置可以如图16所示。图16中包括多个SW(SW1~SW3和SW5~SW9,SW1有多个,多个SW1包括图13中的SW1),IQR表示正交接收机,CH_1~CH_N表示多个传输通道,T1表示校正耦合通道,以CH_1为第一传输通道,CH_N为第二传输通道为例,CP1可以表示第一端点,CPn可以表示第二端点。图16中的LPF表示低通滤波器(low pass filter,LPF),IQT表示正交发射机,I和Q可以表示IQR输出的信号矢量的I分量和Q分量、或者输入IQT的信号矢量的I分量和Q分量,VGA表示可变增益放大器。其中,LPF、IQT和IQR可以为基带部分中的原有器件,本申请实施例在校正传输通道间偏差时可以复用基带部分的IQR。切换单元206或切换单元304可以包括SW6~SW8。
其中,当SW1、SW2和SW5均位于位置1、SW3闭合时,该装置用于校正发射通道间的偏差,且当SW6~SW8均位于位置1时,IQR可以接收到从CP1耦合的反馈信号(即检测从第一端点输出的反馈信号),当SW6~SW8均位于位置2时,IQR可以接收到从CPn耦合的反馈信号(即检测从第二端点输出的反馈信号)。当SW9位于位置1时,LO用于输入第一信号和第二信号;当SW9位于位置2时,输入的第一信号和第二信号来自外部。
当SW1、SW2和SW5均位于位置2、SW3打开时,该装置用于校正接收通道间的偏差,且当SW6~SW8均位于位置1时,第一信号从CP1耦合输入(即从第一端点馈入),IQR可以接收到接收通道CH_1和CH_N的反馈信号,当SW6~SW8均位于位置2时,第二信号从CPn耦合输入(即从第二端点馈入),IQR可以接收到接收通道CH_1和CH_N的反馈信号。当SW9位于位置1时,LO用于产生第一信号和第二信号;当SW9位于位置2时,第一信号和第二信号来自外部。
进一步的,如图17所示,装置400(装置400可以是单独的装置200或装置300,或者为装置200和装置300集成在一起的装置)可以被集成在半导体芯片中,该多个传输通道也可以被集成在半导体芯片中,该装置400和多个传输通道可以被集成在同一半导体芯片中,也可以被集成在不同的半导体芯片中。图17中的(a)为该装置400和多个传输通道被集成在半导体芯片0中的示意图;图17中的(b)为该装置400被集成在半导体芯片1中,该多个传输通道被集成在半导体芯片2中的示意图。
进一步的,该装置400还可以被集成在无线通信设备中,比如,该无线通信设备可以为基站,也可以为终端。当该无线通信设备为基站时,待校正的多个传输通道被集成的半导体芯片可以位于该无线通信设备的外部。当该无线通信设备为终端时,该装置400和多个传输通道可以均被集成在该终端中,且可以集成在的同一半导体芯片中,也可以集成在不同的半导体芯片中。
图18为本申请实施例提供的一种用于校正多个传输通道间偏差的方法的流程示意图,多个传输通道包括第一传输通道、第二传输通道以及校正耦合通道,校正耦合通道的第一端点与第一传输通道连接,校正耦合通道的第二端点与第二传输通道连接,该方法的执行主体可以是上述实施例所提供的装置200,或者集成有该装置200的芯片,或者是包含该装置200的无线通信设备。参见图18,该方法包括以下几个步骤。
步骤1801:第一信号在第一端点被馈入时,根据第一传输通道的第一反馈信号检测第一信号矢量,以及根据第二传输通道的第二反馈信号检测第二信号矢量。
步骤1802:第二信号在第二端点被馈入时,根据第一传输通道的第三反馈信号检测第三信号矢量,以及根据第二传输通道的第四反馈信号检测第四信号矢量,第二反馈信号和第三反馈信号在校正耦合通道中的传输方向相反。
步骤1803:根据检测到的信号矢量,确定第一传输通道与第二传输通道间的偏差校正值,该偏差校正值用于校正第一传输通道与第二传输通道间的偏差。
需要说明的是,上述步骤1801-步骤1803的具体实现过程可以参见图2~图5、图7~图9所提供的装置实施例中矢量检测单元201和处理单元202中的相关描述,本申请实施例在此不再赘述。
进一步的,当该多个传输通道还包括第三传输通道时,该方法还包括:校正第一传输通道与第三传输通道间的偏差,和/或,校正第二传输通道与第三传输通道间的偏差。其中,校正第一传输通道与第三传输通道间的偏差、以及校正第二传输通道与第三传输通道间的偏差的方法,与上述校正第一传输通道与第二传输通道间偏差的方法一致,本申请实施例在此不再赘述。
在本申请实施例中,当第一传输通道和第二传输通道为接收通道时,第一信号在第一端点被馈入和第二信号在第二端点被馈入第二信号时,分别根据第一传输通道和第二传输通道的多个反馈信号检测多个信号矢量,由于第二反馈信号和第三反馈信号在校正耦合通道的第一端点与第二端点间的传输方向相反,因此可以根据检测到的反馈信号的信号矢量确定第一传输通道与第二传输通道间的偏差校正值,使得校正耦合通道的传输偏差被抵消,进而根据该偏差校正值进行校正时,可以提高接收通道校正的准确性。
图19为本申请实施例提供的一种用于校正多个传输通道间偏差的方法的流程示 意图,多个传输通道包括第一传输通道、第二传输通道以及校正耦合通道,校正耦合通道的第一端点与第一传输通道连接,校正耦合通道的第二端点与第二传输通道连接,该方法的执行主体可以是上述实施例所提供的装置300,或者集成有该装置300的芯片,或者是包含该装置300的无线通信设备。参见图19,该方法包括以下几个步骤。
步骤1901:当第一信号被输入时,根据第一传输通道从第一端点输出的第一反馈信号检测第一信号矢量、以及根据第二传输通道从第一端点输出的第二反馈信号检测第二信号矢量。
步骤1902:当第二信号被输入时,根据第一传输通道从第二端点输出的第三反馈信号检测第三信号矢量,以及根据第二传输通道从第二端点输出的第四反馈信号检测第四信号矢量,第二反馈信号和第三反馈信号在校正耦合通道中的传输方向相反。
步骤1903:根据检测到的信号矢量,确定第一传输通道与第二传输通道间的偏差校正值,该偏差校正值用于校正第一传输通道与第二传输通道间的偏差。
需要说明的是,上述步骤1901-步骤1903的具体实现过程可以参见图10~图12所提供的装置实施例中矢量检测单元301和处理单元302中的相关描述,本申请实施例在此不再赘述。
进一步的,当该多个传输通道还包括第三传输通道时,该方法还包括:校正第一传输通道与第三传输通道间的偏差,和/或,校正第二传输通道与第三传输通道间的偏差。其中,校正第一传输通道与第三传输通道间的偏差、以及校正第二传输通道与第三传输通道间的偏差的方法,与上述校正第一传输通道与第二传输通道间偏差的方法一致,本申请实施例在此不再赘述。
在本申请实施例中,当第一传输通道和第二传输通道为发射通道时,第一信号和第二信号分别被输入时,分别通过从第一端点和第二端点输出的第一传输通道和第二传输通道的反馈信号,检测多个信号矢量,由于第二反馈信号和第三反馈信号在校正耦合通道中的传输方向相反,因此可以根据检测到的多个信号矢量,确定第一传输通道与第二传输通道间的偏差校正值,使得校正耦合通道的传输偏差被抵消,进而根据该偏差校正值进行校正时,可以提高接收通道校正的准确性。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以所述权利要求的保护范围为准。

Claims (29)

  1. 一种用于校正多个传输通道间偏差的装置,所述多个传输通道包括第一传输通道、第二传输通道以及校正耦合通道,所述校正耦合通道的第一端点与所述第一传输通道连接,所述校正耦合通道的第二端点与所述第二传输通道连接,其特征在于,所述装置包括:
    矢量检测单元,用于第一信号在所述第一端点被馈入时,根据所述第一传输通道的第一反馈信号检测第一信号矢量,以及根据所述第二传输通道的第二反馈信号检测第二信号矢量;
    所述矢量检测单元,还用于第二信号在所述第二端点被馈入时,根据所述第一传输通道的第三反馈信号检测第三信号矢量,以及根据所述第二传输通道的第四反馈信号检测第四信号矢量;其中,所述第二反馈信号和所述第三反馈信号在所述校正耦合通道中的传输方向相反;
    处理单元,用于根据检测到的信号矢量,确定所述第一传输通道与所述第二传输通道间的偏差校正值,所述偏差校正值用于校正所述第一传输通道与所述第二传输通道间的偏差。
  2. 根据权利要求1所述的装置,其特征在于,所述第二反馈信号是所述第一信号经所述第一端点至所述第二端点间的所述校正耦合通道和所述第二传输通道传输后的信号;所述第三反馈信号是所述第二信号经所述第一传输通道和所述第二端点至所述第一端点间的所述校正耦合通道传输后的信号。
  3. 根据权利要求1或2所述的装置,其特征在于,所述矢量检测单元包括正交接收机,所述第一传输通道和所述第二传输通道通过合路器合并,所述正交接收机通过耦合器与所述合路器连接;
    所述第一信号在所述第一端点被馈入时,所述正交接收机分别对所述第一信号和所述第一反馈信号、所述第一信号和所述第二反馈信号进行混频处理,得到所述第一信号矢量和所述第二信号矢量;
    所述第二信号在所述第二端点被馈入时,所述正交接收机分别对所述第二信号和所述第三反馈信号、以及所述第二信号和所述第四反馈信号进行混频处理,得到所述第三信号矢量和所述第四信号矢量。
  4. 根据权利要求3所述的装置,其特征在于,所述装置还包括分路器,所述分路器与所述正交接收机连接,所述分路器还通过切换单元与所述校正耦合通道的第一端点和第二端点连接;
    其中,当所述分路器通过所述切换单元与所述第一端点连接时,用于将所述第一信号分路至所述正交接收机和所述第一端点处;当所述分路器通过所述切换单元与所述第二端点连接时,用于将所述第二信号分路至所述正交接收机和所述第二端点处。
  5. 根据权利要求4所述的装置,其特征在于,所述切换单元为三端开关或者三端口巴伦器。
  6. 根据权利要求4或5所述的装置,其特征在于,所述装置为射频信号输入的装置,所述第一信号和所述第二信号为射频信号;
    其中,所述第一信号和所述第二信号是来自外部的射频信号;或者,所述装置还 包括与所述分路器连接的信号发生器,所述信号发生器用于产生射频信号,所述射频信号包括所述第一信号和所述第二信号。
  7. 根据权利要求4或5所述的装置,其特征在于,所述装置为中频信号输入的装置,所述装置还包括与所述分路器连接的混频器,所述混频器用于对中频信号和校正信号进行混频处理,得到所述第一信号和所述第二信号;
    其中,所述校正信号来自外部,或者所述装置还包括信号发生器,所述信号发生器用于产生所述校正信号。
  8. 根据权利要求4或5所述的装置,其特征在于,所述装置为基带信号输入的装置;
    其中,所述第一信号和所述第二信号来自外部;或者,所述装置还包括与所述分路器连接的信号发生器,所述信号发生器用于产生所述第一信号和所述第二信号。
  9. 根据权利要求1-8任一项所述的装置,其特征在于,所述多个传输通道还包括第三传输通道,所述第三传输通道与所述校正耦合通道的第三端点连接,所述装置还用于:
    校正所述第一传输通道与所述第三传输通道间的偏差,和/或,校正所述第二传输通道与所述第三传输通道间的偏差。
  10. 根据权利要求1-9任一项所述的装置,其特征在于:
    所述装置和所述多个传输通道被集成在同一个半导体芯片中。
  11. 一种无线通信设备,其特征在于:
    所述无线通信设备包括如权利要求1-10中的任一项所述的装置。
  12. 一种用于校正多个传输通道间偏差的方法,所述多个传输通道包括第一传输通道、第二传输通道以及校正耦合通道,所述校正耦合通道的第一端点与所述第一传输通道连接,所述校正耦合通道的第二端点与所述第二传输通道连接,其特征在于,所述方法包括:
    第一信号在所述第一端点被馈入时,根据所述第一传输通道的第一反馈信号检测第一信号矢量,以及根据所述第二传输通道的第二反馈信号检测第二信号矢量;
    第二信号在所述第二端点被馈入时,根据所述第一传输通道的第三反馈信号检测第三信号矢量,以及根据所述第二传输通道的第四反馈信号检测第四信号矢量;其中,所述第二反馈信号和所述第三反馈信号在所述校正耦合通道中的传输方向相反;
    根据检测到的信号矢量,确定所述第一传输通道与所述第二传输通道间的偏差校正值,所述偏差校正值用于校正所述第一传输通道与所述第二传输通道间的偏差。
  13. 根据权利要求12所述的方法,其特征在于,所述第二反馈信号是所述第一信号经所述第一端点至所述第二端点间的所述校正耦合通道和所述第二传输通道传输后的信号;所述第三反馈信号是所述第二信号经所述第一传输通道和所述第二端点至所述第一端点间的所述校正耦合通道传输后的信号。
  14. 根据权利要求12或13所述的方法,其特征在于:
    所述检测第一信号矢量,以及检测第二信号矢量,包括:分别对所述第一信号和所述第一反馈信号、所述第一信号和所述第二反馈信号进行混频处理,得到所述第一信号矢量和所述第二信号矢量;
    所述检测第三信号矢量,以及检测第四信号矢量,包括:分别对所述第二信号和所述第三反馈信号、以及所述第二信号和所述第四反馈信号进行混频处理,得到所述第三信号矢量和所述第四信号矢量。
  15. 根据权利要求12-14任一项所述的方法,其特征在于,所述多个传输通道还包括第三传输通道,所述第三传输通道与所述校正耦合通道的第三端点连接,所述方法还包括:
    校正所述第一传输通道与所述第三传输通道间的偏差,和/或,校正所述第二传输通道与所述第三传输通道间的偏差。
  16. 一种用于校正多个传输通道间偏差的装置,所述多个传输通道包括第一传输通道、第二传输通道以及校正耦合通道,所述校正耦合通道的第一端点与所述第一传输通道连接,所述校正耦合通道的第二端点与所述第二传输通道连接,其特征在于,所述装置包括:
    矢量检测单元,用于当第一信号被输入时,根据所述第一传输通道从所述第一端点输出的第一反馈信号检测第一信号矢量、以及根据所述第二传输通道从所述第一端点输出的第二反馈信号检测第二信号矢量;
    所述矢量检测单元,还用于当第二信号被输入时,根据所述第一传输通道从所述第二端点输出的第三反馈信号检测第三信号矢量,以及根据所述第二传输通道从所述第二端点输出的第四反馈信号检测第四信号矢量;其中,所述第二反馈信号和所述第三反馈信号在所述校正耦合通道中的传输方向相反;
    处理单元,用于根据检测到的信号矢量,确定所述第一传输通道与所述第二传输通道间的偏差校正值,所述偏差校正值用于校正所述第一传输通道与所述第二传输通道间的偏差。
  17. 根据权利要求16所述的装置,其特征在于,所述第二反馈信号是所述第一信号经所述第二传输通道和所述第二端点至所述第一端点间的所述校正耦合通道传输后的信号;所述第三反馈信号是所述第二信号经所述第一传输通道和所述第一端点至所述第二端点间的所述校正耦合通道传输后的信号。
  18. 根据权利要求16或17所述的装置,其特征在于,所述矢量检测单元包括正交接收机,所述正交接收机分别与所述校正耦合通道的第一端点和第二端点连接;
    当所述第一信号被输入时,所述正交接收机分别对所述第一信号和所述第一反馈信号、所述第一信号和所述第二反馈信号进行混频处理,得到所述第一信号矢量和所述第二信号矢量;
    当所述第二信号被输入时,所述正交接收机分别对所述第二信号和所述第三反馈信号、以及所述第二信号和所述第四反馈信号进行混频处理,得到所述第三信号矢量和所述第四信号矢量。
  19. 根据权利要求18所述的装置,其特征在于,所述装置还包括分路器,所述分路器与所述第一传输通道、所述第二传输通道和所述正交接收机连接,以分别将所述第一信号和所述第二信号输入所述第一传输通道、所述第二传输通道和所述正交接收机;
    所述正交接收机还通过切换单元与所述校正耦合通道的第一端点和第二端点连 接,其中,当所述正交接收机通过所述切换单元与所述第一端点连接时,所述正交接收机接收到所述第一反馈信号和所述第二反馈信号,当所述正交接收机通过所述切换单元与所述第二端点连接时,所述正交接收机接收到所述第三反馈信号和所述第四反馈信号。
  20. 根据权利要求19所述的装置,其特征在于,所述装置为射频信号输入的装置,所述第一信号和所述第二信号为射频信号;
    其中,所述第一信号和所述第二信号是来自外部的射频信号;或者,所述装置还包括与所述分路器连接的信号发生器,所述信号发生器用于产生射频信号,所述射频信号包括所述第一信号和所述第二信号。
  21. 根据权利要求19所述的装置,其特征在于,所述装置为中频信号输入的装置,所述装置还包括与所述分路器连接的混频器,所述混频器用于对中频信号和校正信号进行混频处理,得到所述第一信号和第二信号;
    其中,所述校正信号来自外部,或者所述装置还包括信号发生器,所述信号发生器用于产生所述校正信号。
  22. 根据权利要求19所述的装置,其特征在于,所述装置为基带信号输入的装置;
    其中,所述第一信号和所述第二信号来自外部;或者,所述装置还包括与所述分路器连接的信号发生器,所述信号发生器用于产生所述第一信号和所述第二信号。
  23. 根据权利要求16-22任一项所述的装置,其特征在于,所述多个传输通道还包括第三传输通道,所述第三传输通道与所述校正耦合通道的第三端点连接,所述装置还用于:
    校正所述第一传输通道与所述第三传输通道间的偏差,和/或,校正所述第二传输通道与所述第三传输通道间的偏差。
  24. 根据权利要求16-23任一项所述的装置,其特征在于:
    所述装置和所述多个传输通道被集成在同一个半导体芯片中。
  25. 一种无线通信设备,其特征在于:
    所述无线通信设备包括如权利要求16-24中的任一项所述的装置。
  26. 一种用于校正多个传输通道间偏差的方法,所述多个传输通道包括第一传输通道、第二传输通道以及校正耦合通道,所述校正耦合通道的第一端点与所述第一传输通道连接,所述校正耦合通道的第二端点与所述第二传输通道连接,其特征在于,所述方法包括:
    当第一信号被输入时,根据所述第一传输通道从所述第一端点输出的第一反馈信号检测第一信号矢量、以及根据所述第二传输通道从所述第一端点输出的第二反馈信号检测第二信号矢量;
    当第二信号被输入时,根据所述第一传输通道从所述第二端点输出的第三反馈信号检测第三信号矢量,以及根据所述第二传输通道从所述第二端点输出的第四反馈信号检测第四信号矢量;其中,所述第二反馈信号和所述第三反馈信号在所述校正耦合通道中的传输方向相反;
    根据检测到的信号矢量,确定所述第一传输通道与所述第二传输通道间的偏差校正值,其中,所述校正耦合通道的传输偏差相互抵消,所述偏差校正值用于校正所述 第一传输通道与所述第二传输通道间的偏差。
  27. 根据权利要求26所述的方法,其特征在于,所述第二反馈信号是所述第一信号经所述第二传输通道和所述第二端点至所述第一端点间的所述校正耦合通道传输后的信号;所述第三反馈信号是所述第二信号经所述第一传输通道和所述第一端点至所述第二端点间的所述校正耦合通道传输后的信号。
  28. 根据权利要求26或27所述的方法,其特征在于:
    所述检测第一信号矢量、以及检测第二信号矢量,包括:分别对所述第一信号和所述第一反馈信号、所述第一信号和所述第二反馈信号进行混频处理,得到所述第一信号矢量和所述第二信号矢量;
    所述检测第三信号矢量,以及检测第四信号矢量,包括:分别对所述第二信号和所述第三反馈信号、以及所述第二信号和所述第四反馈信号进行混频处理,得到所述第三信号矢量和所述第四信号矢量。
  29. 根据权利要求26-28任一项所述的方法,其特征在于,所述多个传输通道还包括第三传输通道,所述第三传输通道与所述校正耦合通道的第三端点连接,所述方法还包括:
    校正所述第一传输通道与所述第三传输通道间的偏差,和/或,校正所述第二传输通道与所述第三传输通道间的偏差。
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