Multi-channel transceiving device, calibration apparatus, system, and method, and electronic device

Abstract

The present application discloses a multi-channel transceiving device, a calibration apparatus, system, and method, and an electronic device. The multi-channel transceiving device comprises a plurality of service transceiving channels and a plurality of antenna units correspondingly connected to the service transceiving channels. The multi-channel transceiving device comprises a device intermediate frequency port. The device intermediate frequency port is connected to an external frequency mixing radiation link, so that an intermediate frequency circuit in a reference transceiving channel carries out, by means of the external frequency mixing radiation link, radio frequency signal transceiving with the antenna unit corresponding to a service transceiving channel to be calibrated. The gain of the service transceiving channel to be calibrated is determined by determining the power of a transmitted signal, the power of a received signal, the path loss of the external frequency mixing radiation link, and the calibrated gain of the intermediate frequency circuit in the reference transceiving channel, and calibration is performed. In the present application, the calibration stage does not require long-term occupation of large-bandwidth and high-frequency test instruments. The external frequency mixing radiation link can use local oscillator signals inside the multi-channel transceiving device, and frequency synchronization can be achieved without complex synchronization schemes.

Description

Multi-channel transceiver device, calibration device, system, method and electronic device Technical Field

[0001] The present application relates to the field of antenna calibration, and in particular to a method and system for calibrating a multi-channel transceiver device. Background Art

[0002] With the evolution of multi-channel transceiver equipment, multi-channel transceiver equipment is evolving towards large bandwidth and high frequency bands. This also means that the performance of instruments for testing multi-channel transceiver equipment needs to be greatly improved. In multi-channel transceiver RF systems, independent equipment metering stations are required during factory inspection of equipment. Generally, metering stations will require instruments such as spectrum analyzers and signal sources that support high frequency bands and large bandwidths.

[0003] As the frequency and bandwidth of multi-channel transceiver equipment increase, higher requirements are placed on the performance of the instrument, which has an adverse impact on the calibration of multi-channel transceiver equipment.

[0004] Summary of the Invention

[0005] Purpose of the invention: This application aims to provide a multi-channel transceiver device, calibration device, system, method and electronic device to solve the above problems.

[0006] In order to achieve the above-mentioned invention objectives, this application adopts the following technical solutions.

[0007] In a first aspect, the present application provides a multi-channel transceiver device, the multi-channel transceiver device comprising a plurality of service transceiver channels and a plurality of antenna units correspondingly connected to the service transceiver channels, the multi-channel transceiver device comprising a device intermediate frequency port;

[0008] The intermediate frequency port of the device is electrically connected to the intermediate frequency circuit in each of the service transceiver channels through a switch;

[0009] The intermediate frequency port of the device is used to connect to an external mixing radiation link so that the intermediate frequency circuit in the reference transceiver channel transmits and receives radio frequency signals with the antenna unit corresponding to the business transceiver channel to be calibrated through the external mixing radiation link, thereby determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixing radiation link and the calibrated gain of the intermediate frequency circuit in the reference transceiver channel, and calibrating the business transceiver channel to be calibrated based on the gain; wherein the reference transceiver channel is the selected business transceiver channel.

[0010] In a second aspect, the present application provides a calibration device for calibrating a multi-channel transceiver device, wherein the multi-channel transceiver device includes multiple service transceiver channels and multiple antenna units corresponding to the service transceiver channels, and the multi-channel transceiver device includes a device intermediate frequency port; the device intermediate frequency port is electrically connected to the intermediate frequency circuit in each of the service transceiver channels through a switch;

[0011] The calibration device includes an external mixing radiation link and a processor;

[0012] The external frequency mixing radiation link is used to connect to the intermediate frequency port of the device, so that the intermediate frequency circuit in the reference transceiver channel transmits and receives radio frequency signals with the antenna unit corresponding to the service transceiver channel to be calibrated through the external frequency mixing radiation link;

[0013] The processor is used to determine the gain of the service transceiver channel to be calibrated by determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixing radiation link and the calibrated gain of the intermediate frequency circuit in the reference transceiver channel, and calibrate the service transceiver channel to be calibrated based on the gain; wherein the reference transceiver channel is the selected service transceiver channel.

[0014] In a third aspect, the present application provides a calibration system, comprising:

[0015] A multi-channel transceiver device, comprising multiple service transceiver channels and multiple antenna units correspondingly connected to the service transceiver channels, the multi-channel transceiver device including a device intermediate frequency (IF) port; the device IF port is electrically connected to the IF circuit in each of the service transceiver channels via a switch; the device IF port is used to connect to an external mixing radiation link;

[0016] A calibration device, the calibration device is used to calibrate the multi-channel transceiver device;

[0017] The calibration device includes an external mixing radiation link and a processor;

[0018] The external frequency mixing radiation link is used to connect to the intermediate frequency port of the device, so that the intermediate frequency circuit in the reference transceiver channel transmits and receives radio frequency signals with the antenna unit corresponding to the service transceiver channel to be calibrated through the external frequency mixing radiation link;

[0019] The processor is used to determine the gain of the service transceiver channel to be calibrated by determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixing radiation link and the calibrated gain of the intermediate frequency circuit in the reference transceiver channel, and calibrate the service transceiver channel to be calibrated based on the gain; wherein the reference transceiver channel is the selected service transceiver channel.

[0020] In a fourth aspect, the present application provides a multi-channel transceiver device calibration method for calibrating a multi-channel transceiver device, wherein the multi-channel transceiver device includes multiple service transceiver channels and multiple antenna units corresponding to the service transceiver channels. The multi-channel transceiver device includes a device intermediate frequency port, and the device intermediate frequency port is electrically connected to the intermediate frequency circuit in each of the service transceiver channels through a switch;

[0021] The method comprises:

[0022] Selecting a reference transceiver channel from the service transceiver channels;

[0023] Electrically connecting the intermediate frequency port of the device to the intermediate frequency circuit in the reference transceiver channel through a switch;

[0024] Connecting the intermediate frequency port of the device to an external mixing radiation link, so that the intermediate frequency circuit in the reference transceiver channel transmits and receives radio frequency signals with the antenna unit corresponding to the service transceiver channel to be calibrated through the external mixing radiation link;

[0025] By determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixing radiation link and the calibrated gain of the intermediate frequency circuit in the reference transceiver channel, the gain of the service transceiver channel to be calibrated is determined, and the service transceiver channel to be calibrated is calibrated based on the gain.

[0026] In a fifth aspect, the present application provides an electronic device comprising a processor and a memory; the memory is used to store operation instructions; and the processor is used to execute the above-mentioned multi-channel transceiver device calibration method by calling the operation instructions.

[0027] Compared with the existing technology, the multi-channel transceiver device provided in the embodiment of the present application is provided with a device intermediate frequency port, which is convenient for connection with an external mixing radiation link. It can realize calibration of the service transceiver channel by determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixing radiation link and the calibration gain of the intermediate frequency circuit in the reference transceiver channel. The solution is simple and greatly improves the efficiency and convenience of calibration of multi-channel transceiver equipment.

[0028] The calibration device provided in the present application does not require the intervention of expensive high-frequency instruments during the actual calibration process of multi-channel transceiver equipment. The entire calibration device is equipped with an external mixing radiation link. By determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixing radiation link, and the calibrated gain of the intermediate frequency circuit in the reference transceiver channel, the business transceiver channel can be calibrated. The solution is simple, greatly improves the calibration efficiency, and reduces the complexity of the calibration device.

[0029] The calibration system and method provided in this application have simple environmental networking, and the entire production calibration process does not rely on high-performance instruments such as ultra-large bandwidth and ultra-high frequency signal sources / spectrum analyzers.

[0030] During the calibration phase of this application, a vector network analyzer is only used to calibrate the path loss of the external frequency mixing radiation link, and there is no need to occupy a large bandwidth, high frequency band test instrument for a long time.

[0031] The external mixing radiation link can use the local oscillator signal inside the multi-channel transceiver device, and can achieve frequency synchronization without the need for complex synchronization solutions.

[0032] The electronic device provided in this application can calibrate the service transceiver channels of a multi-channel transceiver device without occupying high-frequency test equipment for a long time. The calibration efficiency is high and the solution is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 is a block diagram of the millimeter wave device structure;

[0035] FIG2 is a functional block diagram of a multi-channel transceiver device provided in Embodiment 1 of the present application;

[0036] FIG3 is a functional block diagram of a multi-channel transceiver device provided in Embodiment 2 of the present application;

[0037] FIG4 is a principle block diagram of a clock local oscillator circuit in a multi-channel transceiver device provided in one embodiment of the present application;

[0038] FIG5 is a block diagram of a calibration device according to a third embodiment of the present application;

[0039] FIG6 is a block diagram of a calibration device according to a fourth embodiment of the present application;

[0040] FIG7 is a block diagram of a calibration system according to a fifth embodiment of the present invention;

[0041] FIG8 is a functional block diagram of a calibration system provided in Embodiment 6 of the present application;

[0042] FIG9 is a first principle block diagram of a calibration method according to a seventh embodiment of the present application;

[0043] FIG10 is a second principle block diagram of the calibration method provided in Embodiment 7 of the present application;

[0044] FIG11 is a schematic diagram of calibrating the path loss of an external frequency mixing radiation link (from point B to point C) according to an embodiment of the present application;

[0045] FIG12 is a schematic diagram of a method for determining a calibration gain of an intermediate frequency circuit in a reference transmission channel in a calibration method provided in one embodiment of the present application;

[0046] FIG13 is a schematic diagram of a method for determining a calibration gain of an intermediate frequency circuit in a reference receiving channel in a calibration method provided in one embodiment of the present application;

[0047] FIG14 is a flow chart of a calibration method provided in Embodiment 7 of the present application;

[0048] Explanation of the reference numerals: 10-multi-channel transceiver device, 1-digital processing unit, 2-digital-to-analog conversion unit, 3-service transceiver channel, 4-antenna unit, 5-clock local oscillator circuit, 6-switch switching circuit, 7-switch combining circuit, 31-transmitting intermediate frequency circuit, 32-receiving intermediate frequency circuit, 33-local oscillator signal, 34-mixer, 35-filter, 36-power divider, 37-multi-channel beamformer, 38-mixing link, 39-device intermediate frequency port, 40-channel switch, 41-device local oscillator port, 71-combiner, 20-calibration device, 100-external mixing radiation link, 200-processor, 300- Calibration mixing device, 400-calibration antenna, 500-calibration antenna console, 600-multi-channel transceiver console, 700-display unit, 800-vector network analyzer, 900-spectrum analyzer, 1000-signal source, 301-calibration intermediate frequency port, 302-calibration radio frequency port, 303-calibration local oscillator port, 501-crystal oscillator, 502-reference clock, 503-analog phase-locked loop, 504-radio frequency phase-locked loop, 505-local oscillator power divider, 2000-millimeter wave equipment. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0050] With the development of wireless communication technology, the spectrum in the low-frequency band has become very crowded, while the spectrum resources in the high-frequency band are abundant. Therefore, it has become a trend for the communication frequency band of communication equipment to gradually expand to high frequencies.

[0051] Millimeter waves, due to their short wavelength and wide bandwidth, can effectively solve many problems faced by high-speed broadband wireless access, and therefore have broad application prospects in short-distance communications.

[0052] The multi-channel transceiver device, calibration device, system, method and electronic device proposed in the embodiments of the present application can be applied to millimeter wave systems.

[0053] The multi-channel transceiver device 10 can realize multi-channel reception and transmission of radio frequency signals. The multi-channel transceiver device 10 includes multiple service transceiver channels 3 and multiple antenna units 4 correspondingly connected to the service transceiver channels 3. The multi-channel transceiver device 10 includes a device intermediate frequency port 39.

[0054] This application uses millimeter wave devices as an example for illustration. It is understandable that the multi-channel transceiver device 10 in the embodiment of this application is not limited to millimeter wave devices.

[0055] The schematic diagram of the millimeter wave device 2000 is shown in Figure 1. It includes a digital processing unit 1, a digital-to-analog conversion unit 2, and multiple service transceiver channels 3. The service transceiver channels 3 include an intermediate frequency (IF) link and a mixing link 38, each connected to an antenna unit 4. The IF link inputs or outputs IF signals and includes a transmit IF circuit 31 and a receive IF circuit 32. Each of the transmit IF circuit 31 and the receive IF circuit 32 may include IF components such as an IF filter 35, an amplifier, a balun (balanced-unbalanced transformer), and a power divider 36. The mixing link 38 may include a mixer 34, a filter 35, a power divider 36, and a multi-channel beamformer 37.

[0056] Figure 1 illustrates the workflow of millimeter wave device 2000. In the transmitting circuit, digital processing unit 1 modulates data. During data transmission, digital-to-analog conversion unit 2 converts the digital signal into an analog signal. Transmitting intermediate frequency circuit 31 filters and amplifies the analog signal. Mixer chain 38 up-converts the processed intermediate frequency signal to a high frequency for transmission via antenna unit 4. In the receiving circuit, the high-frequency signal received by antenna unit 4 is down-converted to an intermediate frequency band using mixer chain 38. After processing by receiving intermediate frequency circuit 32, digital-to-analog conversion unit 2 converts the analog signal into a digital signal, which is then demodulated by digital processing unit 1 to obtain data.

[0057] To ensure precise synchronization of each service transceiver channel 3 of the millimeter wave device 2000, the millimeter wave device 2000 also includes a clock local oscillator circuit 5. As shown in Figure 4, the clock local oscillator circuit 5 includes a crystal oscillator 501, an analog phase-locked loop 503, an RF phase-locked loop 504, and a local oscillator power divider 505. The crystal oscillator 501 generates an oscillation signal and outputs it to the analog phase-locked loop 503. The oscillation signal is then connected to the RF phase-locked loop 504. The signal exits the RF phase-locked loop 504 and reaches the local oscillator power divider 505, where it is divided into multiple identical local oscillator signals 33. Each local oscillator signal 33 is then output to the mixing chain 38, ensuring precise synchronization of each service transceiver channel 3. The analog phase-locked loop 503 generates a reference clock 502, which is provided to the digital processing unit 1 and the digital-to-analog conversion unit 2.

[0058] An embodiment of the present application provides a multi-channel transceiver device 10, a calibration system, a method and an electronic device, which are connected to an external mixing radiation link 100 through the device intermediate frequency port 39 of the service transceiver channel 3 in the multi-channel transceiver device 10, so that the intermediate frequency circuit in the reference transceiver channel transmits and receives radio frequency signals with the antenna unit 4 corresponding to the service transceiver channel 3 to be calibrated through the external mixing radiation link 100, thereby determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixing radiation link 100 and the calibrated gain of the intermediate frequency circuit in the reference transceiver channel, and calibrating the service transceiver channel 3 to be calibrated based on the gain; wherein the reference transceiver channel is the selected service transceiver channel 3.

[0059] The solution provided in this application does not require the intervention of expensive high-frequency instruments during the actual calibration process of the multi-channel transceiver device 10. The entire system is equipped with an external mixing radiation link 100. By determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixing radiation link 100, and the calibrated gain of the intermediate frequency circuit in the reference transceiver channel, the business transceiver channel 3 can be calibrated. The solution is simple, reduces the hardware requirements for calibration, and is conducive to production calibration.

[0060] In some embodiments, the local oscillator source used by the external frequency mixing radiation link 100 is the local oscillator signal 33 inside the multi-channel transceiver device 10, and frequency synchronization of each service transceiver channel 3 can be achieved without additional hardware or more complex synchronization solutions.

[0061] The intermediate frequency signal referred to in this application may have a frequency range of 0 to 6 GHz, and the radio frequency signal may be above 10 GHz, such as 26 GHz, 28 GHz, 39 GHz, 60 GHz, 77 GHz, etc., or higher.

[0062] The radio frequency signal referred to in this application is a signal obtained by mixing an intermediate frequency signal and a local oscillator signal.

[0063] The solution provided in the embodiment of the present application can be applied to the calibration of a multi-channel transceiver device 10 in a high frequency band.

[0064] The application is described in detail below with reference to the accompanying drawings.

[0065] Implementation method one:

[0066] As shown in FIG2 , the multi-channel transceiver device 10 includes multiple service transceiver channels 3 and multiple antenna units 4 correspondingly connected to the service transceiver channels 3. The multi-channel transceiver device 10 includes a device intermediate frequency port 39.

[0067] The device intermediate frequency port 39 is electrically connected to the intermediate frequency circuit in each service transceiver channel 3 through a switch;

[0068] The intermediate frequency port 39 of the device is used to connect to the external mixing radiation link 100, so that the intermediate frequency circuit in the reference transceiver channel transmits and receives radio frequency signals with the antenna unit 4 corresponding to the business transceiver channel 3 to be calibrated through the external mixing radiation link 100, thereby determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixing radiation link 100 and the calibrated gain of the intermediate frequency circuit in the reference transceiver channel, and calibrating the business transceiver channel 3 to be calibrated based on the gain; wherein the reference transceiver channel is the selected business transceiver channel 3.

[0069] The multi-channel transceiver device 10 provided in this embodiment includes multiple service transceiver channels 3 including an intermediate frequency link and a mixing link 38. The service transceiver channel 3 is correspondingly connected to the antenna unit 4, wherein the intermediate frequency link includes a transmitting intermediate frequency circuit 31 and a receiving intermediate frequency circuit 32. Optionally, the mixing link 38 includes a mixer 34, a filter 35, a power divider 36 and a multi-channel beamformer 37 connected in sequence.

[0070] As shown in Figure 2, the multi-channel transceiver device 10, the service transceiver channel 3 includes a transmitting intermediate frequency circuit 31 and a receiving intermediate frequency circuit 32; the multi-channel transceiver device 10 also includes a switch switching circuit 6, the switch switching circuit 6 has a switching switch moving point end and a switching switch fixed point end, the switching switch moving point end is connected to the transmitting intermediate frequency circuit 31 and the receiving intermediate frequency circuit 32 respectively, and the switching switch fixed point end is connected to the device intermediate frequency port 39, which is used to switch the transmitting intermediate frequency circuit 31 and the receiving intermediate frequency circuit 32.

[0071] In some embodiments, the transmitting intermediate frequency circuit 31 and the receiving intermediate frequency circuit 32 are also respectively connected in series with a channel switch 40 for on-off control of the transmitting intermediate frequency circuit 31 and the receiving intermediate frequency circuit 32. Optionally, the channel switch 40 can be a single-pole single-throw switch or a single-pole double-throw switch.

[0072] In the accompanying drawing shown in Figure 2, the moving point ends of the switching switches in the switching circuit 6 are respectively connected to the moving point ends of the channel switch 40. In other embodiments, the moving point ends of the switching switches in the switching circuit 6 can be directly connected to the transmitting intermediate frequency circuit 31 and the receiving intermediate frequency circuit 32 respectively.

[0073] The multi-channel transceiver device 10 shown in FIG2 is provided with a device intermediate frequency port 39 , which can be directly connected to the calibration device by simple plug-in connection or thread connection, and has flexibility.

[0074] The device's intermediate frequency port 39 is convenient for connection to an external mixing and radiating link 100. By determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixing and radiating link 100, and the calibrated gain of the intermediate frequency circuit in the reference transceiver channel, calibration of the service transceiver channel 3 can be achieved. The solution is simple, reduces the hardware requirements for calibration, and is more conducive to calibration.

[0075] The multi-channel transceiver device 10 provided in the embodiment of the present application is easy to calibrate and can realize the transmission and reception of multi-channel information high-frequency signals.

[0076] In some embodiments, as shown in FIG2 , the multi-channel transceiver device 10 includes a device local oscillator port 41 , which is connected to an internal local oscillator signal 33 of the multi-channel transceiver device 10 ;

[0077] The local oscillator port 41 of the device is used to connect to the external mixer-radiating link 100 to provide the external mixer-radiating link 100 with a local oscillator signal 33 .

[0078] Optionally, the device local oscillator port 41 may be connected to a clock local oscillator circuit 5 for obtaining a local oscillator signal 33 . For an example of the clock local oscillator circuit 5 , reference may be made to FIG. 4 .

[0079] By setting the device local oscillator port 41, the external mixing radiation link 100 can flexibly select the local oscillator source, so that it can conveniently access the local oscillator signal 33 inside the multi-channel transceiver device 10, or choose not to use the local oscillator signal 33 inside the multi-channel transceiver device 10, thereby improving the flexibility and adaptability of the selection of the external mixing radiation link 100 and improving the test and calibration efficiency.

[0080] Implementation method 2:

[0081] As shown in FIG3 , the multi-channel transceiver device 10 provided in this embodiment is different from the first embodiment in that, in this embodiment, the multi-channel transceiver device 10 includes a switch combining circuit 7 ;

[0082] The switch combining circuit 7 includes a switch switching circuit 6 and a combiner 71. The switch switching circuit 6 has a switch moving point terminal and a switch fixed point terminal. The switch moving point terminal is connected to the transmitting intermediate frequency circuit 31 and the receiving intermediate frequency circuit 32 respectively, and the switch fixed point terminal is connected to the combiner 71.

[0083] The combiner 71 is used to combine the output signal of either the transmitting intermediate frequency circuit 31 or the receiving intermediate frequency circuit 32 with the local oscillator signal 33 into one signal and output it to the device intermediate frequency port 39, or to separate the signal received by the device intermediate frequency port 39 into two signals, one of which is connected to the moving point end of the switching switch, and the other signal obtains the local oscillator signal 33; wherein the local oscillator signal 33 is the internal local oscillator signal 33 of the multi-channel transceiver device 10.

[0084] In this embodiment, the connection method of the moving point end of the switch of the switching circuit 6 can refer to the second embodiment, and the fixed point end of the switch is connected to the combiner 71 .

[0085] The multi-channel transceiver device 10 provided in this embodiment generates an intermediate frequency signal based on the local oscillator signal 33, so that the external calibration mixer 300 can achieve precise synchronization. There is no need for the external calibration device to set clock synchronization, thereby improving calibration efficiency and simplifying the calibration process.

[0086] In some embodiments, when the intermediate frequency signal of the multi-channel transceiver device 10 and the local oscillator signal 33 have frequencies close to or significantly different from each other, making it difficult to design the combiner 71 as shown in Figure 3, the system may consider using two RF cables to respectively lead out the intermediate frequency signal and the local oscillator signal 33, and output them to the external calibration mixing device 300 respectively.

[0087] Implementation method three:

[0088] As shown in FIG5 , this embodiment provides a calibration device 20 for calibrating a multi-channel transceiver device 10. The multi-channel transceiver device 10 includes multiple service transceiver channels 3 and multiple antenna units 4 correspondingly connected to the service transceiver channels 3. The multi-channel transceiver device 10 includes a device intermediate frequency port 39. The device intermediate frequency port 39 is electrically connected to the intermediate frequency circuit in each service transceiver channel 3 via a switch.

[0089] The calibration device 20 includes an external mixer radiation link 100 and a processor 200;

[0090] The external frequency mixing radiating link 100 is used to connect to the intermediate frequency port 39 of the device, so that the intermediate frequency circuit in the reference transceiver channel transmits and receives radio frequency signals with the antenna unit 4 corresponding to the service transceiver channel 3 to be calibrated through the external frequency mixing radiating link 100;

[0091] The processor 200 is used to determine the gain of the business transceiver channel 3 to be calibrated by determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixing radiation link 100, and the calibrated gain of the intermediate frequency circuit in the reference transceiver channel, and calibrate the business transceiver channel 3 to be calibrated based on the gain; wherein the reference transceiver channel is the selected business transceiver channel 3.

[0092] The calibration device 20 provided in the present application does not require the intervention of expensive high-frequency instruments during the actual calibration process of the multi-channel transceiver equipment 10. The entire calibration device 20 is externally provided with an external mixing radiation link 100. By determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixing radiation link 100, and the calibrated gain of the intermediate frequency circuit in the reference transceiver channel, the service transceiver channel 3 can be calibrated. The solution is simple, has low hardware requirements, and is more applicable.

[0093] Implementation method four:

[0094] As shown in FIG6 , this embodiment provides a calibration device 20 based on the fourth embodiment, and the external frequency mixing radiation link 100 includes:

[0095] A calibration mixer 300 connected to the intermediate frequency port 39 of the device;

[0096] The calibration antenna 400 and the calibration mixer 300 transmit and receive radio frequency signals via the calibration antenna 400 and the antenna unit 4 corresponding to the service transceiver channel 3 to be calibrated;

[0097] The calibration mixing device 300 is used to perform mixing processing based on the intermediate frequency signal or radio frequency signal transmitted by the intermediate frequency port 39 of the device.

[0098] In some embodiments, the calibration mixer 300 has a calibration radio frequency port 302 and a calibration intermediate frequency port 301;

[0099] The calibration intermediate frequency port 301 is connected to the device intermediate frequency port 39 , and the calibration radio frequency port 302 is connected to the calibration antenna 400 .

[0100] In other implementations, the calibration mixer 300 further includes a calibration local oscillator port 303 , which is connected to the internal local oscillator signal 33 of the multi-channel transceiver device 10 .

[0101] Implementation method five:

[0102] As shown in FIG7 , this embodiment provides a calibration system, including:

[0103] A multi-channel transceiver device 10 includes multiple service transceiver channels 3 and multiple antenna units 4 connected to the service transceiver channels 3. The multi-channel transceiver device 10 includes an intermediate frequency (IF) port 39. The IF port 39 is electrically connected to the IF circuit within each service transceiver channel 3 via a switch. The IF port 39 is used to connect to an external mixing radiation link 100.

[0104] Calibration device 20, calibration device 20 is used to calibrate the multi-channel transceiver device 10;

[0105] The calibration device 20 includes an external mixer radiation link 100 and a processor 200;

[0106] The external frequency mixing radiating link 100 is used to connect to the intermediate frequency port 39 of the device, so that the intermediate frequency circuit in the reference transceiver channel transmits and receives radio frequency signals with the antenna unit 4 corresponding to the service transceiver channel 3 to be calibrated through the external frequency mixing radiating link 100;

[0107] The processor 200 is used to determine the gain of the business transceiver channel 3 to be calibrated by determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixing radiation link 100, and the calibrated gain of the intermediate frequency circuit in the reference transceiver channel, and calibrate the business transceiver channel 3 to be calibrated based on the gain; wherein the reference transceiver channel is the selected business transceiver channel 3.

[0108] The calibration system provided by the embodiment of the present application has a simple environmental networking. The entire production calibration process does not rely on high-performance instruments such as ultra-large bandwidth and ultra-high frequency signal sources / spectrum analyzers. The system hardware performance requirements are low, which is conducive to promotion.

[0109] Those skilled in the art will appreciate that the calibration system provided in the embodiments of the present application, including the multi-channel transceiver device 10 and the calibration apparatus 20, may be described in detail in the above embodiments, which will not be further described in this embodiment.

[0110] In some embodiments, frequency synchronization can be achieved by leading out the internal local oscillator signal 33 of the device local oscillator port 41 set by the multi-channel transceiver device 10, and connecting the device local oscillator port 41 through the calibration local oscillator port 303 on the calibration device. Therefore, the calibration system provided by the embodiment of the present application does not require a complex frequency synchronization solution. The multi-channel transceiver device 10 and the external calibration device 20 only need to share the local oscillator signal.

[0111] In some embodiments, a switch combining circuit 7 is designed inside the multi-channel transceiver device 10, wherein a combiner 71 is designed to connect the intermediate frequency signal and the local oscillator signal 33 of the reference transceiver channel. The intermediate frequency and clock signals are led out internally through the combiner 71, and only one cable needs to be led out to connect to the calibration device 20. The environmental networking is simple, the calibration hardware requirements are low, and the efficiency is relatively high.

[0112] Implementation method six:

[0113] On the basis of the fifth embodiment, as shown in FIG8 , a calibration mixing device 300 is provided, and the calibration mixing device 300 is connected to the intermediate frequency port 39 of the device; a calibration antenna 400 is provided, and the calibration mixing device 300 transmits and receives radio frequency signals through the calibration antenna 400 and the antenna unit 4 corresponding to the service transceiver channel 3 to be calibrated; wherein the calibration mixing device 300 is used to perform mixing processing based on the intermediate frequency signal or radio frequency signal transmitted by the intermediate frequency port 39 of the device.

[0114] The calibration system provided in this embodiment also includes a calibration antenna console 500, on which the calibration antenna 400 is placed. The calibration antenna console 500 is connected to the processor 200, which is used to control the calibration antenna console 500 so that the calibration antenna 400 moves in the X-axis and Y-axis directions of the plane.

[0115] In some embodiments, the calibration system further includes a multi-channel transceiver device console 600, the multi-channel transceiver device 10 is placed on the multi-channel transceiver device console 600, the multi-channel transceiver device console 600 is connected to the processor 200, and the processor 200 is used to control the multi-channel transceiver device console 600 to make the multi-channel transceiver device 10 move in the plane X-axis and Y-axis directions.

[0116] When calibrating different channels, the processor 200 may control the calibration antenna console 500 and the multi-channel transceiver device console 600 to move the multi-channel transceiver device 10 or the calibration antenna 400 .

[0117] In a specific embodiment, the calibration antenna console 500 and the multi-channel transceiver device console 600 may include a table, a screw mechanism and a linkage mechanism. The calibration antenna console 500 and the multi-channel transceiver device console 600 can be placed on the table. The table is also provided with an X-axis screw nut mechanism and a Y-axis screw nut mechanism. The nut can move along the axis of the screw. The screw is connected to the transmission mechanism, and the output power of the transmission mechanism is controlled by the processor 200.

[0118] In some embodiments, the calibration system further includes a display unit 700 , which is electrically connected to the processor 200 and configured to receive and display data from the processor 200 .

[0119] Optionally, the display unit 700 may include but is not limited to one of a liquid crystal display module, an organic light emitting display module and a Micro-LED display module.

[0120] The display unit 700 can be directly connected to the processor 200 and driven by the processor 200 to realize display, but is not limited to this connection method. For example, the display unit 700 can be connected to the processor 200 via a network and / or a Bluetooth module or other communication method.

[0121] Implementation method seven:

[0122] This embodiment provides a multi-channel transceiver device calibration method. The flowchart is shown in FIG14 . The method is used to calibrate a multi-channel transceiver device 10. The multi-channel transceiver device 10 includes multiple service transceiver channels 3 and multiple antenna units 4 correspondingly connected to the service transceiver channels 3. The multi-channel transceiver device 10 includes a device intermediate frequency port 39. The device intermediate frequency port 39 is electrically connected to the intermediate frequency circuit in each service transceiver channel 3 via a switch.

[0123] Methods include:

[0124] Select a reference transceiver channel from the service transceiver channel 3;

[0125] The IF port 39 of the device is electrically connected to the IF circuit in the reference transceiver channel through a switch;

[0126] Connect the IF port 39 of the device to the external mixer radiation link 100, so that the IF circuit in the reference transceiver channel transmits and receives RF signals with the antenna unit 4 corresponding to the service transceiver channel 3 to be calibrated through the external mixer radiation link 100;

[0127] By determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixing radiation link 100 and the calibrated gain of the intermediate frequency circuit in the reference transceiver channel, the gain of the business transceiver channel 3 to be calibrated is determined, and the business transceiver channel 3 to be calibrated is calibrated based on the gain.

[0128] In a specific implementation manner, the gain of the service transceiver channel 3 to be calibrated is expressed as follows: Pc=Pr-Pt-Loss_cl-Pref;

[0129] Wherein, Pc is the gain of the service transceiver channel 3 to be calibrated, Pr is the power of the received signal, Pt is the power of the transmitted signal, Loss_cl is the path loss of the external mixing radiation link 100, and Pref is the calibration gain of the intermediate frequency circuit in the reference transceiver channel.

[0130] The calibration method is described in detail below with reference to FIG9 and FIG10 .

[0131] In the embodiment shown in FIG9 , the calibration method includes calibrating the service transmission channel to be calibrated, specifically including:

[0132] Select a reference receiving channel from the service transceiver channel 3;

[0133] Connect the IF circuit in the reference receiving channel to the IF port 39 of the device; connect the IF port 39 of the device to the external mixing radiation link 100;

[0134] Switch the service transceiver channel 3 to the service transmission channel to be calibrated;

[0135] A signal is transmitted at point A with a power of Pa. The signal passes through the service transmission channel to be calibrated, then through the corresponding antenna unit 4 to point B, and then through the external mixing radiation link 100 to point C. The RF signal is transmitted and received by the intermediate frequency circuit in the reference receiving channel. The power of the signal received by the reference receiving channel at point D is Pd.

[0136] Determine the power of the transmitted signal, the power of the received signal, the path loss of the external mixing radiation link 100, and the calibration gain of the intermediate frequency circuit of the reference receiving channel, and determine the gain of the service transmission channel to be calibrated based on this; calibrate the service transmission channel to be calibrated based on the gain.

[0137] In a specific implementation manner, the expression of the gain of the service transmission channel to be calibrated is as follows: Pab=Pd-Pa-Loss-Prx_ref;

[0138] Among them, Pab is the gain of the service transmission channel to be calibrated, Pd is the power of the received signal, Pa is the power of the transmitted signal, Loss is the path loss of the external mixing radiation link 100, that is, from point B to point C, and Prx_ref is the calibration gain from point C to point D of the intermediate frequency circuit of the reference receiving channel. This expression can be used to calibrate the gain of the transmission link AB (that is, the service transmission channel to be calibrated) of the multi-channel transceiver device 10.

[0139] In the embodiment shown in FIG10 , the calibration method includes calibrating the service receiving channel to be calibrated, specifically including:

[0140] Select a reference transmission channel from the service transceiver channel 3;

[0141] Connect the IF circuit in the reference transmission channel to the IF port 39 of the device; connect the IF port 39 of the device to the external mixing radiation link 100;

[0142] Switch the service transceiver channel 3 to the service receiving channel to be calibrated;

[0143] A signal is transmitted at point D with a power of Pd. The signal passes through the intermediate frequency circuit in the reference transmission channel to reach point C, and then through the external mixing radiation link 100 to point B. The antenna unit 4 corresponding to the service receiving channel to be calibrated transmits and receives RF signals. The service receiving channel to be calibrated receives the signal with a power of Pa at point A.

[0144] Determine the power of the transmitted signal, the power of the received signal, the path loss of the external mixing radiation link 100, and the calibration gain of the reference transmission channel intermediate frequency circuit, and determine the gain of the service receiving channel to be calibrated based on this; calibrate the service receiving channel to be calibrated based on the gain.

[0145] In a specific implementation manner, the gain of the service receiving channel to be calibrated is expressed as follows: Pba=Pa'-Pd'-Loss'-Ptx_ref;

[0146] Wherein, Pba is the gain of the service receiving channel to be calibrated, Pa' is the power of the received signal, Pd' is the power of the transmitted signal, Los' is the path loss of the external mixing radiation link 100, i.e., from point C to point B, and Ptx_ref is the calibration gain from point D to point C of the intermediate frequency circuit of the reference transmission channel.

[0147] The gain of the receiving link BA (ie, the service receiving channel to be calibrated) of the multi-channel transceiver device 10 can be calibrated using this expression.

[0148] Based on the above process, the transmission values ​​of different service transceiver channels 3 and frequencies of the multi-channel transceiver device 10 are traversed to complete the calibration.

[0149] In some embodiments, environmental data needs to be calibrated, as shown in FIG11 , to obtain the path loss of the external mixing radiation link 100, that is, from point B to point C. When calibrating the environmental data, the calibration antenna 400 may use a standard gain horn, and a vector network analyzer 800 may be used to perform loss calibration on the path loss of the BC segment within the required frequency band. The direction of the calibration mixer 300 may be set to transmit or receive according to calibration requirements.

[0150] Since the external frequency mixing radiation link 100 is in an external environment, the solution provided in this application only requires the use of the vector network analyzer 800 when calibrating the external environment data. It does not need to be occupied for a long time and the vector network analyzer 800 is no longer needed after the environment stabilizes.

[0151] The reference calibration gain of the intermediate frequency circuit in the transmitting and receiving channel includes the reference calibration gain of the intermediate frequency circuit in the transmitting channel and the reference calibration gain of the intermediate frequency circuit in the receiving channel;

[0152] In some embodiments, a method for determining the calibration gain of the intermediate frequency circuit in the reference transmit channel is as follows:

[0153] As shown in FIG12 , the intermediate frequency circuit in the reference transmission channel (such as the transmitting intermediate frequency circuit 31 in FIG12 ) is connected to the intermediate frequency port 39 of the device to output the intermediate frequency signal; the reference transmission channel transmits the signal, and the spectrum analyzer 900 measures the power of the received signal at the intermediate frequency port 39 of the device; the calibration gain of the intermediate frequency circuit in the reference transmission channel is determined based on the power of the transmitted signal and the power of the received signal.

[0154] Since the signal received by the spectrum analyzer 900 is the intermediate frequency signal in the intermediate frequency circuit, which is the signal before mixing and is not high frequency, there is no need for a high-frequency and large-bandwidth instrument. Only an inexpensive, low-frequency instrument is needed to measure the calibrated gain of the internal intermediate frequency circuit of the reference transceiver channel.

[0155] As shown in Figure 13, the calibration gain of the intermediate frequency circuit in the reference receiving channel is determined as follows:

[0156] Connect the intermediate frequency circuit in the reference receiving channel (such as the intermediate frequency receiving circuit 32 described in FIG13 ) to the intermediate frequency port 39 of the device; the signal source 1000 transmits a signal at the intermediate frequency port 39 of the device;

[0157] The power of the received signal of the reference receiving channel is measured; and the calibration gain of the intermediate frequency circuit of the reference receiving channel is determined according to the power of the transmitted signal and the power of the received signal.

[0158] The signal source 1000 may be a low-frequency signal source.

[0159] In some embodiments, in the calibration method, the local oscillator source of the external frequency mixing radiation link 100 uses the internal local oscillator signal 33 of the multi-channel transceiver device 10, without the need for a complex synchronization circuit, and can achieve high calibration efficiency and high synchronization accuracy.

[0160] An embodiment of the present application further provides an electronic device, including a processor and a memory; the memory is used to store operation instructions; the processor is used to execute the multi-channel transceiver device calibration method described above by calling the operation instructions.

[0161] The above are merely specific embodiments of the present application to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but rather is intended to conform to the widest scope consistent with the principles and novel features of the present application.

[0162] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the function specified in one process or multiple processes in the flowchart and / or one box or multiple boxes in the block diagram.

Claims

1. A multi-channel transceiver device (10), characterized in that: The multi-channel transceiver device (10) comprises a plurality of service transceiver channels (3) and a plurality of antenna units (4) correspondingly connected to the service transceiver channels (3), and the multi-channel transceiver device (10) comprises a device intermediate frequency port (39); The intermediate frequency port (39) of the device is electrically connected to the intermediate frequency circuit in each of the service transceiver channels (3) through a switch; The intermediate frequency port (39) of the device is used to connect to an external frequency mixing radiation link (100), so that the intermediate frequency circuit in the reference transceiver channel transmits and receives radio frequency signals with the antenna unit (4) corresponding to the service transceiver channel (3) to be calibrated through the external frequency mixing radiation link (100), thereby determining the gain of the service transceiver channel (3) to be calibrated by determining the power of the transmitted signal, the power of the received signal, the path loss of the external frequency mixing radiation link (100) and the calibrated gain of the intermediate frequency circuit in the reference transceiver channel, and calibrating the service transceiver channel (3) to be calibrated based on the gain; The reference transceiver channel is the selected service transceiver channel (3).

2. The multi-channel transceiver device (10) according to claim 1, characterized in that: The service transceiver channel (3) comprises a transmitting intermediate frequency circuit (31) and a receiving intermediate frequency circuit (32); The multi-channel transceiver device (10) further comprises a switch switching circuit (6), wherein the switch switching circuit (6) has a switch moving point end and a switch fixed point end, wherein the switch moving point end is respectively connected to the transmitting intermediate frequency circuit (31) and the receiving intermediate frequency circuit (32), and the switch fixed point end is connected to the device intermediate frequency port (39) for switching the transmitting intermediate frequency circuit (31) and the receiving intermediate frequency circuit (32).

3. The multi-channel transceiver device (10) according to claim 1, characterized in that: The service transceiver channel (3) further includes a transmitting intermediate frequency circuit (31) and a receiving intermediate frequency circuit (32); The multi-channel transceiver device (10) further comprises a switch combining circuit (7); The switch combining circuit (7) comprises a switch switching circuit (6) and a combiner (71), wherein the switch switching circuit (6) has a switch moving point end and a switch fixed point end, wherein the switch moving point end is respectively connected to the transmitting intermediate frequency circuit (31) and the receiving intermediate frequency circuit (32), and the switch fixed point end is connected to the combiner (71); The combiner (71) is used to combine the output signal of any one of the transmitting intermediate frequency circuit (31) or the receiving intermediate frequency circuit (32) with the local oscillator signal (33) into one signal path and output it to the intermediate frequency port (39) of the device, or to separate the signal received by the intermediate frequency port (39) of the device into two signals, one of which is connected to the fixed point end of the switching switch and the other obtains the local oscillator signal (33); The local oscillator signal (33) is an internal local oscillator signal of the multi-channel transceiver device (10).

4. The multi-channel transceiver device (10) according to claim 1, characterized in that: The multi-channel transceiver device (10) comprises a device local oscillator port (41), wherein the device local oscillator port (41) is connected to the multi-channel transceiver device (10). An internal local oscillator signal (33) of the channel transceiver device (10); The local oscillator port (41) of the device is used to connect to the external frequency mixing radiating link (100) to provide the local oscillator signal (33) to the external frequency mixing radiating link (100).

5. A calibration device (20), characterized in that: Used for calibrating a multi-channel transceiver device (10), the multi-channel transceiver device (10) comprising a plurality of service transceiver channels (3) and a plurality of antenna units (4) correspondingly connected to the service transceiver channels (3), the multi-channel transceiver device (10) comprising a device intermediate frequency port (39); the device intermediate frequency port (39) is electrically connected to the intermediate frequency circuit in each of the service transceiver channels (3) through a switch; The calibration device (20) comprises an external frequency mixing radiation link (100) and a processor (200); The external frequency mixing radiation link (100) is used to connect to the intermediate frequency port (39) of the device, so that the intermediate frequency circuit in the reference transceiver channel transmits and receives radio frequency signals with the antenna unit (4) corresponding to the service transceiver channel (3) to be calibrated through the external frequency mixing radiation link (100); The processor (200) is used to determine the gain of the service transceiver channel (3) to be calibrated by determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixing radiation link (100) and the calibrated gain of the intermediate frequency circuit in the reference transceiver channel, and calibrate the service transceiver channel (3) to be calibrated based on the gain; wherein the reference transceiver channel is the selected service transceiver channel (3).

6. The calibration device (20) according to claim 5, characterized in that The external frequency mixing radiation link (100) comprises: A calibration mixer (300), the calibration mixer (300) being connected to the intermediate frequency port (39) of the device; A calibration antenna (400), wherein the calibration mixing device (300) transmits and receives radio frequency signals with the antenna unit (4) corresponding to the service transceiver channel (3) to be calibrated via the calibration antenna (400); The calibration mixing device (300) is used to perform mixing processing based on the intermediate frequency signal transmitted by the intermediate frequency port (39) of the device or the radio frequency signal.

7. The calibration device (20) according to claim 6, characterized in that The calibration mixer (300) has a calibration intermediate frequency port (301) and a calibration radio frequency port (302); The calibration intermediate frequency port (301) is connected to the device intermediate frequency port (39), and the calibration radio frequency port (302) is connected to the calibration antenna (400).

8. The calibration device (20) according to claim 7, characterized in that The calibration mixing device (300) further comprises a calibration local oscillator port (303), wherein the calibration local oscillator port (303) is connected to an internal local oscillator signal (33) of the multi-channel transceiver device (10).

9. A calibration system, characterized in that: include: A multi-channel transceiver device (10), the multi-channel transceiver device (10) comprising a plurality of service transceiver channels (3) and a plurality of antenna units (4) correspondingly connected to the service transceiver channels (3), the multi-channel transceiver device (10) comprising a device intermediate frequency port (39); the device intermediate frequency port (39) is electrically connected to the intermediate frequency circuit in each of the service transceiver channels (3) through a switch; the device intermediate frequency port (39) is used to connect to an external mixing frequency radiation link (100); A calibration device (20), the calibration device (20) being used for calibrating the multi-channel transceiver device (10); The calibration device (20) comprises an external frequency mixing radiation link (100) and a processor (200); The external frequency mixing radiation link (100) is used to connect to the intermediate frequency port (39) of the device, so that the intermediate frequency circuit in the reference transceiver channel transmits and receives radio frequency signals with the antenna unit (4) corresponding to the service transceiver channel (3) to be calibrated through the external frequency mixing radiation link (100); The processor (200) is used to determine the gain of the service transceiver channel (3) to be calibrated by determining the power of the transmitted signal, the power of the received signal, the path loss of the external mixing radiation link (100) and the calibrated gain of the intermediate frequency circuit in the reference transceiver channel, and calibrate the service transceiver channel (3) to be calibrated based on the gain; wherein the reference transceiver channel is the selected service transceiver channel (3).

10. The calibration system according to claim 9, characterized in that The external frequency mixing radiation link (100) is provided with: a calibration frequency mixing device (300), the calibration frequency mixing device (300) being connected to the intermediate frequency port (39) of the device; and a calibration antenna (400), the calibration frequency mixing device (300) transmitting and receiving radio frequency signals with the antenna unit (4) corresponding to the service transceiver channel (3) to be calibrated via the calibration antenna (400); wherein the calibration frequency mixing device (300) is used to perform frequency mixing processing based on the intermediate frequency signal transmitted by the intermediate frequency port (39) of the device or the radio frequency signal; The system further comprises a calibration antenna console (500), the calibration antenna (400) being placed on the calibration antenna console (500), the calibration antenna console (500) being connected to the processor (200), and the processor (200) being further used for controlling the calibration antenna console (500) so as to enable the calibration antenna (400) to move in the X-axis and Y-axis directions of a plane.

11. The calibration system according to claim 9, characterized in that The system further comprises a multi-channel transceiver device console (600), the multi-channel transceiver device (10) being placed on the multi-channel transceiver device console (600), the multi-channel transceiver device console (600) being connected to the processor (200), and the processor (200) being further used for controlling the multi-channel transceiver device console (600) so as to enable the multi-channel transceiver device (10) to move in the X-axis and Y-axis directions of the plane.

12. The calibration system according to claim 9, characterized in that The system further comprises a display unit (700), wherein the display unit (700) is electrically connected to the processor (200), and the display unit (700) is used to receive data from the processor (200) and display the data.

13. A multi-channel transceiver device calibration method, characterized in that: Used for calibrating a multi-channel transceiver device (10), the multi-channel transceiver device (10) comprising a plurality of service transceiver channels (3) and a plurality of antenna units (4) correspondingly connected to the service transceiver channels (3), the multi-channel transceiver device (10) comprising a device intermediate frequency port (39), the device intermediate frequency port (39) being electrically connected to the intermediate frequency circuit in each of the service transceiver channels (3) through a switch; The method comprises: Selecting a reference transceiver channel from the service transceiver channels (3); The intermediate frequency port (39) of the device is electrically connected to the intermediate frequency circuit in the reference transceiver channel through a switch; The intermediate frequency port (39) of the device is connected to an external frequency mixing radiation link (100), so that the intermediate frequency circuit in the reference transceiver channel transmits and receives radio frequency signals with the antenna unit (4) corresponding to the service transceiver channel (3) to be calibrated through the external frequency mixing radiation link (100); By determining the power of the transmitted signal, the power of the received signal, the path loss of the external frequency mixing radiation link (100), and the calibrated gain of the intermediate frequency circuit in the reference transceiver channel, the gain of the service transceiver channel (3) to be calibrated is determined, and the service transceiver channel (3) to be calibrated is calibrated based on the gain.

14. The multi-channel transceiver device calibration method according to claim 13, characterized in that: Connecting the intermediate frequency port (39) of the device to the external frequency mixing radiation link (100) specifically includes: The external frequency mixing radiation link (100) is provided with a calibration frequency mixing device (300) and a calibration antenna (400); Connecting the intermediate frequency port (39) of the device to a calibration mixer (300); The calibration mixing device (300) transmits and receives radio frequency signals via the calibration antenna (400) and the antenna unit (4) corresponding to the service transceiver channel (3) to be calibrated.

15. The multi-channel transceiver device calibration method according to claim 13, characterized in that: The reference calibrated gain of the intermediate frequency circuit in the transceiver channel includes the reference calibrated gain of the intermediate frequency circuit in the transmit channel and the reference calibrated gain of the intermediate frequency circuit in the receive channel; The method for determining the calibration gain of the intermediate frequency circuit in the reference transmission channel is as follows: Connecting the intermediate frequency circuit in the reference transmission channel to the intermediate frequency port (39) of the device to output an intermediate frequency signal; The reference transmission channel transmits a signal; The spectrum analyzer (900) measures the power of the received signal at the intermediate frequency port (39) of the device; Determining a calibration gain of an intermediate frequency circuit in the reference transmission channel according to the power of the transmission signal and the power of the received signal; The method for determining the calibration gain of the intermediate frequency circuit in the reference receiving channel is as follows: Connecting the intermediate frequency circuit in the reference receiving channel to the intermediate frequency port (39) of the device; The signal source (1000) transmits a signal at the intermediate frequency port (39) of the device; The power of the received signal of the reference receiving channel is measured; and the calibration gain of the intermediate frequency circuit of the reference receiving channel is determined according to the power of the transmitted signal and the power of the received signal.

16. The multi-channel transceiver device calibration method according to claim 13, characterized in that: The path loss of the external frequency mixing radiating link (100) is measured using a vector network analyzer (800).

17. The multi-channel transceiver device calibration method according to claim 13, characterized in that: The method includes calibrating a service receiving channel to be calibrated, specifically including: Selecting a reference transmission channel from the service transceiver channel (3); Connecting the intermediate frequency circuit in the reference transmission channel to the intermediate frequency port (39) of the device; connecting the intermediate frequency port (39) of the device to an external mixing radiation link (100); Switching the service transceiver channel (3) to the service receiving channel to be calibrated; The intermediate frequency circuit in the reference transmission channel transmits and receives radio frequency signals with the antenna unit (4) corresponding to the service receiving channel to be calibrated via the external frequency mixing radiation link (100); The power of the transmitted signal, the power of the received signal, the path loss of the external frequency mixing radiation link (100) and the calibration gain of the intermediate frequency circuit of the reference transmission channel are determined, and the gain of the service receiving channel to be calibrated is determined accordingly; and the service receiving channel to be calibrated is calibrated based on the gain.

18. The multi-channel transceiver device calibration method according to claim 13, characterized in that: The method includes calibrating a service transmission channel to be calibrated, specifically including: Selecting a reference receiving channel from the service transceiver channel (3); Connecting the intermediate frequency circuit in the reference receiving channel to the intermediate frequency port (39) of the device; connecting the intermediate frequency port (39) of the device to an external mixing radiation link (100); Switching the service transceiver channel (3) to the service transmission channel to be calibrated; The service transmission channel to be calibrated transmits and receives radio frequency signals with the intermediate frequency circuit in the reference receiving channel via the corresponding antenna unit (4) and the external frequency mixing radiation link (100); The power of the transmitted signal, the power of the received signal, the path loss of the external frequency mixing radiation link (100) and the calibrated gain of the intermediate frequency circuit of the reference receiving channel are determined, and the gain of the service transmission channel to be calibrated is determined accordingly; and the service transmission channel to be calibrated is calibrated based on the gain.

19. The multi-channel transceiver device calibration method according to claim 13, characterized in that: The local oscillator source of the external frequency mixing radiation link (100) adopts the internal local oscillator signal of the multi-channel transceiver device (10). (33)。 20. The multi-channel transceiver device calibration method according to claim 13, characterized in that: The gain of the service transceiver channel (3) to be calibrated is expressed as follows: Pc = Pr - Pt - Loss_cl - Pref, Among them, Pc is the gain of the service transceiver channel (3) to be calibrated, Pr is the power of the received signal, Pt is the power of the transmitted signal, Loss_cl is the path loss of the external mixing radiation link (100), and Pref is the calibrated gain of the intermediate frequency circuit in the reference transceiver channel.

21. An electronic device, characterized in that: It comprises a processor and a memory; the memory is used to store operation instructions; the processor is used to execute the multi-channel transceiver equipment calibration method as described in any one of claims 13-20 by calling the operation instructions.

Images