WO2019085556A1 - Signal transmission apparatus and test device thereof, and repeater communication device - Google Patents

Signal transmission apparatus and test device thereof, and repeater communication device Download PDF

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Publication number
WO2019085556A1
WO2019085556A1 PCT/CN2018/097587 CN2018097587W WO2019085556A1 WO 2019085556 A1 WO2019085556 A1 WO 2019085556A1 CN 2018097587 W CN2018097587 W CN 2018097587W WO 2019085556 A1 WO2019085556 A1 WO 2019085556A1
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WIPO (PCT)
Prior art keywords
signal
radio frequency
chip
transmission device
amplification module
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PCT/CN2018/097587
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French (fr)
Chinese (zh)
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褚兆文
康磊
张航
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京信通信***（中国）有限公司
京信通信***（广州）有限公司
京信通信技术(广州)有限公司
天津京信通信***有限公司
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Publication of WO2019085556A1 publication Critical patent/WO2019085556A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details 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
    • H04B1/38—Transceivers, 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
    • H04B1/40—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details 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
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details 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
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B2001/0408—Circuits with power amplifiers

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a signal transmission device, a test device thereof, and a repeater communication device.
  • the digital repeater mainly includes a near-end machine and a remote machine, and is used for transmitting and receiving signals of a digital repeater.
  • the signal transmission device is an important component of the repeater communication device of the near-end or the remote.
  • the signal transmission device of the repeater communication device mainly adopts a single signal channel to realize the transmission and reception of the communication signal.
  • the signal transmission device may need to be switched to realize the transmission of different types of communication signals, which is easy.
  • the complexity of signal transmission is high.
  • a signal transmission device includes: a radio frequency interface circuit, a power amplification module, a low noise amplification module, and a signal transceiving chip having a plurality of radio frequency transmitting ends and a radio frequency receiving end;
  • the power amplification module is provided with a plurality of signal receiving ends, and the low noise amplification module is provided with a plurality of signal transmitting ends;
  • Each of the radio frequency transmitting ends of the signal transceiving chip is respectively connected to a signal receiving end of the power amplifying module to form a signal transmitting channel, and each radio frequency receiving end of the signal transceiving chip is respectively connected to a signal transmitting end of the low noise amplifying module to form a signal.
  • the low noise amplification module transmits an external radio frequency signal received by the radio frequency interface circuit to the signal transceiving chip;
  • the signal transceiving chip sends the radio frequency signal to the power amplifying module through the signal transmitting channel, and digitally processes the received radio frequency signal to obtain a digital signal output;
  • the power amplification module outputs the received radio frequency signal through the radio frequency interface circuit.
  • the signal transmission device may form a plurality of signal transmission channels between the signal transceiver chip and the power amplification module, and form a plurality of signal receiving channels between the signal transceiver chip and the low noise amplification module, and each signal transmission channel has a corresponding
  • the signal receiving channel enables the above signal transmission device to have multiple sets of signal transmission channels, which can respectively transmit corresponding types of radio frequency signals respectively, thereby reducing the complexity of signal transmission devices for different types of communication signal transmission, and also being able to be in independent frequency bands.
  • the communication signal chain is integrated, and different integration modes are realized by constructing different modules, and the size of the communication device of the repeater station (such as the near-end machine or the remote machine) where the signal transmission device is located is reduced, and the signal chain performance of the above device is not affected. .
  • test device for a signal transmission device comprising a test signal generator and a test analyzer
  • test signal generator is connected to the radio frequency interface circuit of the signal transmission device, and the test analyzer is connected to the baseband interface circuit of the signal transmission device;
  • the test signal generator generates a test signal, and the test signal is input to the signal transmission device through the radio frequency interface circuit;
  • the test analyzer obtains a digital signal output by the signal transmission device through the baseband interface circuit, identifies a signal parameter of the digital signal, and acquires a test result according to the signal parameter.
  • the test device of the above signal transmission device can perform corresponding test on the communication signal transmission function of the signal transmission device, timely detect and handle the communication failure in the signal transmission process, and further ensure the working stability of the signal transmission device. .
  • a repeater communication device comprising the above signal transmission device
  • the antenna interface of the repeater communication device is connected to the radio frequency interface of the signal transmission device, and the main control unit of the repeater communication device is connected to the baseband signal end of the signal transceiving chip in the signal transmission device.
  • the above-mentioned repeater communication device uses a signal transmission device for communication signal transmission, which can reduce the complexity of transmitting multiple types of communication signals.
  • FIG. 1 is a schematic structural diagram of a signal transmission apparatus of an embodiment
  • FIG. 2 is a schematic structural diagram of a signal transmission apparatus of an embodiment
  • FIG. 3 is a schematic structural diagram of a signal transmission apparatus of an embodiment
  • FIG. 4 is a schematic structural diagram of a signal transmission apparatus of an embodiment
  • FIG. 5 is a schematic diagram of the operation of a clock chip of an embodiment
  • FIG. 6 is a schematic structural diagram of a signal transmission apparatus of an embodiment
  • FIG. 7 is a schematic structural diagram of a test apparatus of a signal transmission apparatus according to an embodiment
  • FIG. 8 is a schematic structural diagram of a test apparatus of a signal transmission apparatus according to an embodiment
  • Figure 9 is a flow chart of the combined test of one embodiment
  • FIG. 10 is a schematic structural diagram of a repeater communication device according to an embodiment.
  • FIG. 1 is a schematic structural diagram of a signal transmission apparatus according to an embodiment, including: a radio frequency interface circuit 11 , a power amplification module 12 , a low noise amplification module 13 , and a signal transmission and reception with multiple radio frequency transmitting ends and radio frequency receiving ends.
  • the power amplifying module 12 is provided with a plurality of signal receiving ends, and the low noise amplifying module 13 is provided with a plurality of signal transmitting ends;
  • Each of the radio frequency transmitting ends of the signal transceiving chip 14 (such as the TX pin of the chip AD937X) is respectively connected to the signal receiving end of the power amplifying module 12 to form a signal transmitting channel, and each radio frequency receiving end of the signal transceiving chip 14 (
  • the RX pin of the chip AD937X is respectively connected to the signal transmitting end of the low noise amplifying module 13 to form a plurality of signal receiving channels, and each signal transmitting channel corresponds to one signal receiving channel, and the signal transmitting channel and the corresponding signal receiving channel transmit one.
  • Types of radio frequency signals (or a standard communication signal);
  • the low noise amplification module 13 transmits the external radio frequency signal received by the radio frequency interface circuit 11 to the signal transceiving chip 14;
  • the signal transceiving chip 14 sends the radio frequency signal to the power amplifying module 12 through the signal transmitting channel, and digitally processes the received radio frequency signal to obtain a digital signal output;
  • the power amplification module 12 outputs the received radio frequency signal through the radio frequency interface circuit 11.
  • the power amplifying module 12 has a plurality of signal receiving ends, each of which has a corresponding signal output end and a coupling end, and is a multi-channel power amplifying module;
  • the low-noise amplifying module 13 has a plurality of signal transmitting ends, and each signal transmitting end
  • Corresponding signal receiving end which is a multi-channel low-noise amplifying module
  • each radio frequency transmitting end of the signal transceiving chip 14 is respectively connected to a signal receiving end of the power amplifying module 12, that is, the radio frequency transmitting end and the signal receiving end are connected one-to-one, Forming a plurality of signal transmitting channels, each of the radio receiving ends of the signal transceiving chip 14 is respectively connected to a signal transmitting end of the low noise amplifying module 13, that is, the signal transmitting end and the signal radio receiving end are connected in one-to-one correspondence to form a plurality of signal receiving channels; Any one of the signal transmission channels has a corresponding signal receiving channel,
  • the signal transceiving chip 14 can be implemented by using an ADI ultra-wideband integrated chip AD937X series; in the above signal transceiving chip 14, the received radio frequency signal can be converted into a corresponding digital signal, and the signal transceiving chip 14 can support analog voltage supply. And analog voltage detection to obtain various signal parameters of the RF signal in the power amplification module.
  • the power amplifying module 12 can support a maximum output of 20 W (Watt), supports a 60 MHz (megahertz) bandwidth signal, and supports a 50 dB (decibel) gain amplification output, which can be implemented by using BGU8051, BLF8G27-10, and BLF6G10-45 chips. Ensure the corresponding power amplification effect.
  • the low noise amplifying module 13 can support 35 db amplification, and can be implemented by using SGU8051 and SKY65015 chips to ensure a corresponding low noise effect.
  • the radio frequency interface circuit 11 is an external radio frequency interface of the signal transmission device, and can be implemented by using an N-head.
  • the signal transceiving chip 14 can support dual receiving and independent gain adjustment (receiving part sharing local oscillator), dual transmission and independent gain adjustment (transmitting part sharing local oscillator), and correspondingly, the above power amplifying module 12
  • Both the low-noise amplification module 13 and the low-noise amplification module 13 can support two channels (that is, the power amplification module 12 includes two signal receiving ends, and the low-noise amplification module 13 includes two signal transmitting ends). At this time, the signal transmitting and receiving chip 14 and the power amplifying module 12 are provided.
  • Two signal transmission channels having independent gain adjustment functions may be formed between the low noise amplification modules 13; the signal transceiver chip 14 may support separate reception and gain adjustment of the feedback channels, and receive the coupled signals fed back by the power amplification module 12 through the feedback channels. Equal signal components.
  • the signal transmission device provided by the present invention can form a plurality of signal transmission channels between the signal transceiving chip 14 and the power amplifying module 12, and form a plurality of signal receiving channels between the signal transceiving chip 14 and the low noise amplifying module 13, and each The signal transmitting channels all have corresponding signal receiving channels, so that the signal transmitting device has multiple sets of signal transmission channels, which can respectively transmit corresponding types of radio frequency signals, thereby reducing the complexity of signal transmission devices for different types of communication signal transmission.
  • the above signal transmission device may further include a baseband interface circuit 15 connected to the baseband signal end of the signal transceiving chip 14 and the main control of the repeater communication device. Between units;
  • the baseband interface circuit 15 transmits the digital signal output by the signal transceiving chip to the main control unit of the repeater communication device.
  • the baseband interface circuit 15 may be provided with a high speed transmission channel and a low speed transmission channel, and the digital signal may include digital signal data and digital control data, and the digital signal data may be transmitted through the high speed transmission channel to ensure the transmission efficiency of the digital signal data.
  • the relatively simple digital control data is transmitted through the above low-speed transmission channel to ensure order and stability in the transmission process.
  • the digital signal generated by the digital processing of the signal transceiving chip 14 can be sent to the main control unit of the repeater communication device through the baseband interface circuit 15, so that the corresponding signal transmission device transmits the reception to the repeater communication device in time.
  • the communication signal ensures the smoothness of the corresponding transmission of the communication signal in the above signal transmission device.
  • control end of the signal transceiving chip 14 can be respectively connected to the control end of the power amplifying module 12 and the control end of the low noise amplifying module 13;
  • the signal transceiving chip 14 sends a control signal to the control end of the power amplifying module 12 and the control end of the low noise amplifying module 13 to control the power amplifying module 12 and low noise amplification when performing radio frequency signal transceiving work. Module 13 enters the working state.
  • the control end of the signal transceiving chip 14 is respectively connected to the control end of the power amplifying module 12 and the control end of the low noise amplifying module 13.
  • the chip 14 can respectively send control signals such as correlation level signals to the control terminals of the power amplification module 12 and the low noise amplification module 13 to control the power amplification module 12 and the low noise amplification module 13 to enter an active state.
  • the signal transceiver chip 14 can also control the power amplification module 12 to perform gate voltage detection and power detection and the like through its control end.
  • the main control unit 51 of the repeater communication device in which the signal transmission device is located may be respectively connected to the control end of the transceiver chip 14 and the control terminal of the power amplification module 12 through the baseband interface circuit 15 and The control terminal of the low noise amplification module 13.
  • the main control unit 51 can send a control signal to the control end of the transceiver chip 14, the control end of the power amplification module 12, and the control end of the low noise amplification module 13 through the baseband interface circuit 15, and control the signal transceiver chip 14 and the power amplification module. 12 and the low noise amplification module 13 enters the working state.
  • the signal transmission device may further include a clock chip 21, the first end of the clock chip 21 is connected to a main control unit of the repeater communication device, and the clock chip 21 is The second end is connected to the clock end of the signal transceiving chip 14, and the third end of the clock chip 21 is connected to the clock end of the interface circuit;
  • the clock chip 21 acquires a reference clock from the main control unit, performs phase noise optimization on the digital signal of the signal transceiving chip according to the reference clock, and fixes the reference clock and the output clock timing by using a zero delay function, and further The reference clock clocks the digital signals at the baseband interface circuitry.
  • the clock chip 21 provided in this embodiment may acquire a reference clock from a main control unit of a repeater communication device such as a near-end machine or a remote machine where the signal transmission device is located, to perform phase noise optimization, timing fixation, and the signal transmission device.
  • Clock alignment and other clock optimization processing can ensure that the signal transmission device is homologous to the clock of the near-end machine or the remote machine where it is located, clock phase locking is performed, and a working reference clock with excellent performance is provided to ensure the consistency of the relevant working timing, and further Improve the quality of the communication signal received by the repeater communication device such as the near-end machine or the remote machine.
  • the clock chip can be implemented by using LMK04828.
  • the working diagram of the clock chip can be referred to FIG. 5.
  • the clock chip can be connected to the main control unit and signal transmission of the corresponding repeater communication device. Between the devices, the clock chip acquires the reference clock from the main control unit, and aligns its own clock with the clock of the main control unit to accurately calibrate the clock it carries, and then performs phase noise optimization and timing on the signal transmission device.
  • Clock optimization such as fixed and clock alignment enables high-quality transmission of reference clocks over long distances, zero delay and timing fine-tuning for precise delay alignment of data transmitted in corresponding signal transmission devices.
  • the reference clock of the above clock chip can be generated by using a clock recovery mode, which can achieve the purpose of optimizing clock phase noise and improving communication signal performance.
  • each of the signal receiving ends of the power amplifying module 12 has a corresponding signal output end and a coupling end, and each of the coupling ends is respectively connected to a feedback receiving end of the signal transceiver chip 14;
  • the power amplification module 12 obtains a coupling signal from the radio frequency signal of the signal output end, and feeds the coupling signal to the signal transceiving chip 14 through the corresponding coupling end of the signal receiving end; the radio frequency signal of the signal output end is amplified by the power amplifying module 12 After the radio frequency signal;
  • the signal transceiving chip 14 performs predistortion processing on the same type of radio frequency signal transmitted next through the coupled signal and the received baseband downlink signal.
  • the baseband downlink signal is a signal sent by the main control unit of the repeater communication device where the signal transmission device is located to the signal transceiving chip 14.
  • the signal transceiving chip 14 may extract a predistortion signal parameter from the coupled signal and the baseband downlink signal, and correct a signal corresponding to the predistortion signal parameter in the same type of radio frequency signal to be transmitted next according to the predistortion signal parameter.
  • the signal transmission device provided in this embodiment performs predistortion processing on the subsequently transmitted radio frequency signal to improve the linearity index of the signal transmission device.
  • FIG. 7 is a schematic structural diagram of a test apparatus of a signal transmission apparatus according to an embodiment, including a test signal generator 31 and a test analyzer 32;
  • test signal generator 31 is connected to the radio frequency interface circuit 11 of the signal transmission device 10 of any one of the above embodiments, and the test analyzer 32 is connected to the baseband interface circuit 15 of the signal transmission device 10 of any one of the above embodiments;
  • the test signal generator 31 generates a test signal, and the test signal is input to the signal transmission device 10 through the radio frequency interface circuit 15;
  • the test analyzer 32 obtains a digital signal output by the signal transmission device 10 through the baseband interface circuit, identifies a signal parameter of the digital signal, and acquires a test result according to the signal parameter.
  • the above signal parameters may include parameters such as signal gain, output power, and linearity.
  • the test device of the signal transmission device provided in this embodiment can perform corresponding tests on the communication signal transmission function of the signal transmission device 10, timely detect and handle the communication failure in the signal transmission process, and further ensure signal transmission.
  • the working stability of the device 10 improves its working performance.
  • the test signal generator includes a plurality of module interfaces, and the test analyzer includes a plurality of signal input interfaces;
  • the module interfaces of the test signal generator are respectively connected to different signal input interfaces in the test analyzer through a signal transmission device.
  • the plurality of module interfaces of the test signal generator can provide the test of the signal transmission device connected to each module interface, and can also test other devices of the same baseband interface. It can also support serial port and network port communication.
  • the test analyzer includes multiple interfaces (signal input interfaces) for accessing the baseband interface circuit; the above module interfaces can be in one-to-one correspondence with the signal input interfaces, that is, any one of the module interfaces has The only corresponding signal input interface, the corresponding set of module interface and signal input interface can be called a set of interfaces. Referring to FIG.
  • a plurality of signal transmission devices can be connected between the test signal generator and the test analyzer, and each signal transmission device is connected between a test signal generator and a set of interfaces of the test analyzer, and the test signal occurs.
  • the device can generate a test signal, and send the test signal to each signal transmission device respectively, and the digital signal obtained by each signal transmission device according to the test signal is sent to the test analyzer through the baseband interface circuit, and the test analyzer recognizes each signal transmission.
  • the digital signal transmitted by the device performs a combined test on the plurality of signal transmission devices according to the digital signal to improve the test efficiency of the signal transmission device.
  • a test flow chart of performing a combined test on the plurality of signal transmission devices may refer to FIG. As shown, the following steps are included:
  • step S63 if the power statistics are not normal, then confirm the gain of the signal transceiver chip, if the signal transceiver chip is debugged to normal according to the confirmation result, return to step S61;
  • step S66 if the signal parameter is abnormal (there is a problem), it is confirmed whether there is a problem with the output power level, according to the confirmation result, the baseband interface circuit is debugged normally, and the process returns to step S64;
  • a repeater communication device comprising the signal transmission device of any one of the above embodiments;
  • the antenna interface of the repeater communication device is connected to the radio frequency interface of the signal transmission device, and the main control unit of the repeater communication device is connected to the baseband signal end of the signal transceiving chip in the signal transmission device.
  • the above repeater communication device may be a communication device such as a near-end machine or a remote machine of the repeater.
  • the repeater communication device provided in this embodiment uses a signal transmission device to perform communication signal transmission, and effectively simplifies the transmission of various communication signals.
  • the above repeater communication device may further include a plurality of multiplexers
  • Any one of the multiplexers is connected between an antenna interface of the repeater communication device and a radio frequency interface of a signal transmission device.
  • the multiplexer is full-duplex, including a first end and a second end, and the first end of any one multiplexer is respectively connected to an antenna interface (a repeater communication device is provided with multiple antenna interfaces), and each Any second end of the multiplexer is connected to the main control unit via a signal transmission device.
  • the repeater communication device provided in this embodiment can access a plurality of the above signal transmission devices, and each of the signal transmission devices can realize transmission of multi-type or multi-standard communication signals, so that the above-mentioned repeater communication device can implement different types or formats.
  • the communication signal transmission function completes the corresponding digital signal transmission through the main control unit, and can also realize the functions of integrated control of the whole board and digital module monitoring.
  • the main control unit is respectively connected to the control end of the transceiver chip, the control end of the power amplification module, and the control end of the low noise amplification module through the baseband interface circuit;
  • the main control unit sends a control signal to the transceiver chip, the power amplification module, and the low noise amplification module through the baseband interface circuit, and controls the transceiver chip, the power amplification module, and the low noise amplification module to enter a working state.
  • the signal receiving and receiving chip receives the external radio frequency signal sent by the low noise amplifying circuit, converts the external radio frequency signal into a baseband signal, and transmits the baseband interface circuit to the main control unit.
  • the main control unit may send the baseband downlink signal to the signal transceiver chip, so that the signal transceiver chip acquires the radio frequency signal according to the baseband downlink signal, and sends the signal to the power amplification module.
  • the main control unit can respectively send control signals such as relevant level signals to the transceiver chip, the power amplification module and the low noise amplification module through the baseband interface circuit, and control the transceiver chip.
  • the corresponding signal processing work is performed, and the power amplification module and the low noise amplification module can be respectively controlled to perform signal amplification work.
  • the present invention also provides a digital repeater, comprising a repeater communication device such as a near-end machine and a remote machine as described above, wherein the digital repeater passes the signal transmission device therein (or replaces the transmitted communication signal correspondingly
  • the signal transmission device can realize the signal transmission function of different standards.
  • the signal transmission device can replace the amplification tube, the balun, and change the local oscillator frequency of the signal transceiver chip (such as the ultra-wideband transceiver chip) to realize the transmission and reception of communication signals of different frequency bands and standards, thereby effectively reducing the transmission and reception of various types or standards.
  • the complexity of the communication signal is not limited to realize the communication signals.
  • the signal chain discrete module corresponding to each signal transmission device can adopt an integrated device scheme, adopts a high-speed serial transmission interface, realizes compact transmission, and performs baseband transmission between each signal transmission device and the main control unit, and each signal The signals transmitted between the transmission devices do not interfere with each other, and the channel isolation between different discrete signal transmission devices is high;
  • the reference signal of the discrete signal transmission device adopts a clock recovery mode, which can realize high-quality transmission of reference clocks with longer distances, using zero Delay and timing fine-tuning enable accurate time delay alignment of data transmission;
  • each signal chain discrete module (signal transmission device) has digital pre-distortion function, which can reduce the size of the power amplifier module and reduce the overall power consumption;
  • each discrete signal transmission device can complete the corresponding All analog detection and analog voltage supply in the module, streamline interface design, save system cost;
  • each interface of each signal chain discrete module can be simplified design, support single module debugging under uniform tooling, with high production effectiveness.

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Abstract

The present invention relates to a signal transmission apparatus and a test device thereof, and a repeater communication device. The signal transmission apparatus comprises: a radio frequency interface circuit, a power amplification module, a low noise amplification module and a signal transceiving chip, wherein each radio frequency transmitting end of the signal transceiving chip is respectively connected to a signal receiving end of the power amplification module, so as to form a signal transmitting channel; each radio frequency receiving end of the signal transceiving chip is respectively connected to a signal sending end of the low noise amplification module, so as to form a signal receiving channel; each signal transmitting channel corresponds to one signal receiving channel; the signal transmitting channel and the signal receiving channel transmit the same kind of radio frequency signals; the low noise amplification module transmits the received radio frequency signal to the signal transceiving chip; the signal transceiving chip sends the radio frequency signal to the power amplification module and performs digital processing on the received radio frequency signal so as to obtain digital signal input; and the power amplification module outputs the received radio frequency signal via the radio frequency interface circuit.

Description

信号传输装置及其测试设备、直放站通信设备Signal transmission device and test equipment thereof, repeater communication device 技术领域Technical field
本发明涉及通信技术领域，特别是涉及一种信号传输装置及其测试设备、直放站通信设备。The present invention relates to the field of communications technologies, and in particular, to a signal transmission device, a test device thereof, and a repeater communication device.
背景技术Background technique
目前，常用的数字直放站(如数字拉远直放站)主要构架多种多样，数字直放站主要包括近端机和远端机，用于对数字直放站的通信信号进行信号收发的信号传输装置是近端机或者远端机这些直放站通信设备的重要组成部分。At present, the commonly used digital repeater (such as digital remote repeater) has a variety of main structures. The digital repeater mainly includes a near-end machine and a remote machine, and is used for transmitting and receiving signals of a digital repeater. The signal transmission device is an important component of the repeater communication device of the near-end or the remote.
直放站通信设备的信号传输装置主要采用单一的信号通道实现通信信号的收发，在面对不同类型的通信信号时，可能需要进行信号传输装置的切换，以实现不同类型通信信号的传输，容易使信号传输的复杂度高。The signal transmission device of the repeater communication device mainly adopts a single signal channel to realize the transmission and reception of the communication signal. When facing different types of communication signals, the signal transmission device may need to be switched to realize the transmission of different types of communication signals, which is easy. The complexity of signal transmission is high.
发明内容Summary of the invention
基于此，有必要针对传统方案容易使信号传输的复杂度高的技术问题，提供一种信号传输装置及其测试设备、直放站通信设备。Based on this, it is necessary to provide a signal transmission device, a test device thereof, and a repeater communication device for the technical problem that the conventional scheme is easy to make the signal transmission highly complex.
一种信号传输装置，包括：射频接口电路，功率放大模块，低噪声放大模块，以及具有多个射频发射端和射频接收端的信号收发芯片；A signal transmission device includes: a radio frequency interface circuit, a power amplification module, a low noise amplification module, and a signal transceiving chip having a plurality of radio frequency transmitting ends and a radio frequency receiving end;
所述功率放大模块设有多个信号接收端，所述低噪声放大模块设有多个信号发送端；The power amplification module is provided with a plurality of signal receiving ends, and the low noise amplification module is provided with a plurality of signal transmitting ends;
所述信号收发芯片的各个射频发射端分别连接所述功率放大模块的信号接收端，构成信号发射通道，所述信号收发芯片的各个射频接收端分别连接低噪 声放大模块的信号发送端，构成信号接收通道，每个信号发射通道对应一个信号接收通道，所述信号发射通道与对应的信号接收通道传输一种类型的射频信号；Each of the radio frequency transmitting ends of the signal transceiving chip is respectively connected to a signal receiving end of the power amplifying module to form a signal transmitting channel, and each radio frequency receiving end of the signal transceiving chip is respectively connected to a signal transmitting end of the low noise amplifying module to form a signal. a receiving channel, each signal transmitting channel corresponding to a signal receiving channel, wherein the signal transmitting channel and the corresponding signal receiving channel transmit one type of radio frequency signal;
所述低噪声放大模块将射频接口电路接收的外部射频信号传输至信号收发芯片；The low noise amplification module transmits an external radio frequency signal received by the radio frequency interface circuit to the signal transceiving chip;
所述信号收发芯片通过信号发射通道将射频信号发送至功率放大模块，并对所接收的射频信号进行数字化处理得到数字信号输出；The signal transceiving chip sends the radio frequency signal to the power amplifying module through the signal transmitting channel, and digitally processes the received radio frequency signal to obtain a digital signal output;
所述功率放大模块将接收的射频信号通过所述射频接口电路进行输出。The power amplification module outputs the received radio frequency signal through the radio frequency interface circuit.
上述信号传输装置，可以在信号收发芯片和功率放大模块之间形成多个信号发射通道，在信号收发芯片和低噪声放大模块之间形成多个信号接收通道，且各个信号发射通道均具有对应的信号接收通道，使上述信号传输装置具有多组信号传输通道，可以分别对多类型的射频信号进行相应的传输，降低了信号传输装置进行不同类通信信号传输的复杂度，还能够将独立频段内的通信信号链整合，通过构建不同的模组实现不同的整合方式，减少信号传输装置所在直放站通信设备(如近端机或者远端机)的尺寸，又不影响上述设备的信号链性能。The signal transmission device may form a plurality of signal transmission channels between the signal transceiver chip and the power amplification module, and form a plurality of signal receiving channels between the signal transceiver chip and the low noise amplification module, and each signal transmission channel has a corresponding The signal receiving channel enables the above signal transmission device to have multiple sets of signal transmission channels, which can respectively transmit corresponding types of radio frequency signals respectively, thereby reducing the complexity of signal transmission devices for different types of communication signal transmission, and also being able to be in independent frequency bands. The communication signal chain is integrated, and different integration modes are realized by constructing different modules, and the size of the communication device of the repeater station (such as the near-end machine or the remote machine) where the signal transmission device is located is reduced, and the signal chain performance of the above device is not affected. .
一种信号传输装置的测试设备，包括测试信号发生器和测试分析仪；A test device for a signal transmission device, comprising a test signal generator and a test analyzer;
所述测试信号发生器连接上述信号传输装置的射频接口电路，所述测试分析仪连接上述信号传输装置的基带接口电路；The test signal generator is connected to the radio frequency interface circuit of the signal transmission device, and the test analyzer is connected to the baseband interface circuit of the signal transmission device;
所述测试信号发生器产生测试信号，将所述测试信号通过所述射频接口电路输入所述信号传输装置；The test signal generator generates a test signal, and the test signal is input to the signal transmission device through the radio frequency interface circuit;
所述测试分析仪获取信号传输装置通过基带接口电路输出的数字信号，识别所述数字信号的信号参数，根据所述信号参数获取测试结果。The test analyzer obtains a digital signal output by the signal transmission device through the baseband interface circuit, identifies a signal parameter of the digital signal, and acquires a test result according to the signal parameter.
上述信号传输装置的测试设备，可以对信号传输装置的通信信号传输功能进行相应的测试，及时对其在信号传输过程中的通信故障进行检测以及相应的处理，进一步保证信号传输装置的工作稳定性。The test device of the above signal transmission device can perform corresponding test on the communication signal transmission function of the signal transmission device, timely detect and handle the communication failure in the signal transmission process, and further ensure the working stability of the signal transmission device. .
一种直放站通信设备，包括上述信号传输装置；A repeater communication device comprising the above signal transmission device;
所述直放站通信设备的天线接口连接所述信号传输装置的射频接口，所述直放站通信设备的主控单元连接所述信号传输装置中信号收发芯片的基带信号端。The antenna interface of the repeater communication device is connected to the radio frequency interface of the signal transmission device, and the main control unit of the repeater communication device is connected to the baseband signal end of the signal transceiving chip in the signal transmission device.
上述直放站通信设备，采用信号传输装置进行通信信号传输，可以降低其传输多类型通信信号的复杂度。The above-mentioned repeater communication device uses a signal transmission device for communication signal transmission, which can reduce the complexity of transmitting multiple types of communication signals.
附图说明DRAWINGS
图1为一个实施例的信号传输装置结构示意图；1 is a schematic structural diagram of a signal transmission apparatus of an embodiment;
图2为一个实施例的信号传输装置结构示意图；2 is a schematic structural diagram of a signal transmission apparatus of an embodiment;
图3为一个实施例的信号传输装置结构示意图；3 is a schematic structural diagram of a signal transmission apparatus of an embodiment;
图4为一个实施例的信号传输装置结构示意图；4 is a schematic structural diagram of a signal transmission apparatus of an embodiment;
图5为一个实施例的时钟芯片工作示意图；；FIG. 5 is a schematic diagram of the operation of a clock chip of an embodiment; FIG.
图6为一个实施例的信号传输装置结构示意图；；6 is a schematic structural diagram of a signal transmission apparatus of an embodiment;
图7为一个实施例的信号传输装置的测试设备结构示意图；7 is a schematic structural diagram of a test apparatus of a signal transmission apparatus according to an embodiment;
图8为一个实施例的信号传输装置的测试设备结构示意图；FIG. 8 is a schematic structural diagram of a test apparatus of a signal transmission apparatus according to an embodiment; FIG.
图9为一个实施例的合路测试流程图；Figure 9 is a flow chart of the combined test of one embodiment;
图10为一个实施例的直放站通信设备结构示意图。FIG. 10 is a schematic structural diagram of a repeater communication device according to an embodiment.
具体实施方式Detailed ways
下面结合附图对本发明提供的信号传输装置及其测试设备、直放站通信设备的具体实施方式进行详细阐述。The specific embodiments of the signal transmission device, the test device and the repeater communication device provided by the present invention are described in detail below with reference to the accompanying drawings.
参考图1所示，图1为一个实施例的信号传输装置结构示意图，包括：射频接口电路11、功率放大模块12，低噪声放大模块13，以及具有多个射频发射端和射频接收端的信号收发芯片14；Referring to FIG. 1 , FIG. 1 is a schematic structural diagram of a signal transmission apparatus according to an embodiment, including: a radio frequency interface circuit 11 , a power amplification module 12 , a low noise amplification module 13 , and a signal transmission and reception with multiple radio frequency transmitting ends and radio frequency receiving ends. Chip 14;
所述功率放大模块12设有多个信号接收端，所述低噪声放大模块13设有多个信号发送端；The power amplifying module 12 is provided with a plurality of signal receiving ends, and the low noise amplifying module 13 is provided with a plurality of signal transmitting ends;
所述信号收发芯片14的各个射频发射端(如芯片AD937X的TX管脚)分别连接所述功率放大模块12的信号接收端，构成信号发射通道，所述信号收发芯片14的各个射频接收端(如芯片AD937X的RX管脚)分别连接低噪声放大模块13的信号发送端构成多个信号接收通道，每个信号发射通道对应一个信号接收通道，所述信号发射通道与对应的信号接收通道传输一种类型的射频信号(或者一种制式的通信信号)；Each of the radio frequency transmitting ends of the signal transceiving chip 14 (such as the TX pin of the chip AD937X) is respectively connected to the signal receiving end of the power amplifying module 12 to form a signal transmitting channel, and each radio frequency receiving end of the signal transceiving chip 14 ( For example, the RX pin of the chip AD937X is respectively connected to the signal transmitting end of the low noise amplifying module 13 to form a plurality of signal receiving channels, and each signal transmitting channel corresponds to one signal receiving channel, and the signal transmitting channel and the corresponding signal receiving channel transmit one. Types of radio frequency signals (or a standard communication signal);
所述低噪声放大模块13将射频接口电路11接收的外部射频信号传输至信号收发芯片14；The low noise amplification module 13 transmits the external radio frequency signal received by the radio frequency interface circuit 11 to the signal transceiving chip 14;
所述信号收发芯片14通过信号发射通道将射频信号发送至功率放大模块12，并对所接收的射频信号进行数字化处理得到数字信号输出；The signal transceiving chip 14 sends the radio frequency signal to the power amplifying module 12 through the signal transmitting channel, and digitally processes the received radio frequency signal to obtain a digital signal output;
所述功率放大模块12将接收的射频信号通过所述射频接口电路11进行输出。The power amplification module 12 outputs the received radio frequency signal through the radio frequency interface circuit 11.
上述功率放大模块12具有多个信号接收端，各个信号接收端分别具有对应的信号输出端和耦合端，为多通道功率放大模块；低噪声放大模块13具有多个信号发送端，各个信号发送端具有相应的信号接收端，为多通道低噪声放大模块，上述信号收发芯片14的各个射频发射端分别连接功率放大模块12的一个 信号接收端，即射频发射端与信号接收端一一对应连接，形成多个信号发射通道，信号收发芯片14的各个射频接收端分别连接低噪声放大模块13的一个信号发送端，即信号发送端与信射频接收端一一对应连接，形成多个信号接收通道；上述任意一个信号发射通道均具有对应的信号接收通道，信号发射通道及其对应的信号接收通道组成一组信号传输通道，可以传输某一类型的射频信号，因而上述信号收发芯片14与功率放大模块12、低噪声放大模块13之间形成的多组信号传输通道在面对多种类型的通信信号时，仅需进行信号传输通道的切换，便可实现不同类型通信信号的传输，有效降低了其所在数字拉远直放站传输多类型通信信号的复杂度。The power amplifying module 12 has a plurality of signal receiving ends, each of which has a corresponding signal output end and a coupling end, and is a multi-channel power amplifying module; the low-noise amplifying module 13 has a plurality of signal transmitting ends, and each signal transmitting end Corresponding signal receiving end, which is a multi-channel low-noise amplifying module, each radio frequency transmitting end of the signal transceiving chip 14 is respectively connected to a signal receiving end of the power amplifying module 12, that is, the radio frequency transmitting end and the signal receiving end are connected one-to-one, Forming a plurality of signal transmitting channels, each of the radio receiving ends of the signal transceiving chip 14 is respectively connected to a signal transmitting end of the low noise amplifying module 13, that is, the signal transmitting end and the signal radio receiving end are connected in one-to-one correspondence to form a plurality of signal receiving channels; Any one of the signal transmission channels has a corresponding signal receiving channel, and the signal transmitting channel and its corresponding signal receiving channel form a set of signal transmission channels, which can transmit a certain type of radio frequency signal, and thus the signal transmitting and receiving chip 14 and the power amplifying module 12 Formed between the low noise amplification module 13 When multiple sets of signal transmission channels face multiple types of communication signals, only the signal transmission channels need to be switched, and different types of communication signals can be transmitted, which effectively reduces the transmission of multiple types of communication in the digital remote repeater. The complexity of the signal.
具体地，上述信号收发芯片14可以使用ADI超宽带集成芯片AD937X系列实现；在上述信号收发芯片14中，可以将接收的射频信号转换为相应的数字信号，上述信号收发芯片14可以支持模拟电压提供以及模拟电压检测，以获取功率放大模块中射频信号的各项信号参数。上述功率放大模块12可以支持最大20W(瓦)输出，支持60MHz(兆赫兹)带宽信号，支持50db(分贝)增益放大输出，可以通过BGU8051、BLF8G27-10、BLF6G10-45这些芯片搭建来实现，以保证相应的功率放大效果。上述低噪声放大模块13可以支持35db放大，可以采用SGU8051和SKY65015等芯片实现，以保证相应的低噪放效果。上述射频接口电路11为上述信号传输装置的对外射频接口，可以采用N头实现。Specifically, the signal transceiving chip 14 can be implemented by using an ADI ultra-wideband integrated chip AD937X series; in the above signal transceiving chip 14, the received radio frequency signal can be converted into a corresponding digital signal, and the signal transceiving chip 14 can support analog voltage supply. And analog voltage detection to obtain various signal parameters of the RF signal in the power amplification module. The power amplifying module 12 can support a maximum output of 20 W (Watt), supports a 60 MHz (megahertz) bandwidth signal, and supports a 50 dB (decibel) gain amplification output, which can be implemented by using BGU8051, BLF8G27-10, and BLF6G10-45 chips. Ensure the corresponding power amplification effect. The low noise amplifying module 13 can support 35 db amplification, and can be implemented by using SGU8051 and SKY65015 chips to ensure a corresponding low noise effect. The radio frequency interface circuit 11 is an external radio frequency interface of the signal transmission device, and can be implemented by using an N-head.
作为一个实施例，信号收发芯片14可以支持双路接收及独立增益调节(接收部分共用本振)、双路发射及独立增益调节(发射部分共用本振)，相应地，上述的功率放大模块12和低噪声放大模块13均可以支持双通道(即功率放大模块12包括两个信号接收端，低噪声放大模块13包括两个信号发送端)，此时，上述信号收发芯片14与功率放大模块12、低噪声放大模块13之间可以形成具 备独立增益调节功能的两个信号传输通道；上述信号收发芯片14可以支持反馈通道分立接收及增益调节，通过上述反馈通道接收功率放大模块12反馈的耦合信号等信号分量。As an embodiment, the signal transceiving chip 14 can support dual receiving and independent gain adjustment (receiving part sharing local oscillator), dual transmission and independent gain adjustment (transmitting part sharing local oscillator), and correspondingly, the above power amplifying module 12 Both the low-noise amplification module 13 and the low-noise amplification module 13 can support two channels (that is, the power amplification module 12 includes two signal receiving ends, and the low-noise amplification module 13 includes two signal transmitting ends). At this time, the signal transmitting and receiving chip 14 and the power amplifying module 12 are provided. Two signal transmission channels having independent gain adjustment functions may be formed between the low noise amplification modules 13; the signal transceiver chip 14 may support separate reception and gain adjustment of the feedback channels, and receive the coupled signals fed back by the power amplification module 12 through the feedback channels. Equal signal components.
本发明提供的信号传输装置，可以在信号收发芯片14和功率放大模块12之间形成多个信号发射通道，在信号收发芯片14和低噪声放大模块13之间形成多个信号接收通道，且各个信号发射通道均具有对应的信号接收通道，使上述信号传输装置具有多组信号传输通道，可以分别对多类型的射频信号进行相应的传输，降低了信号传输装置进行不同类通信信号传输的复杂度，还能够将独立频段内的通信信号链整合，通过构建不同的模组实现不同的整合方式，减少信号传输装置所在直放站通信设备(如近端机或者远端机)的尺寸，又不影响上述设备的信号链性能。The signal transmission device provided by the present invention can form a plurality of signal transmission channels between the signal transceiving chip 14 and the power amplifying module 12, and form a plurality of signal receiving channels between the signal transceiving chip 14 and the low noise amplifying module 13, and each The signal transmitting channels all have corresponding signal receiving channels, so that the signal transmitting device has multiple sets of signal transmission channels, which can respectively transmit corresponding types of radio frequency signals, thereby reducing the complexity of signal transmission devices for different types of communication signal transmission. It is also possible to integrate the communication signal chain in the independent frequency band, realize different integration modes by constructing different modules, and reduce the size of the communication device of the repeater station (such as the near-end machine or the remote machine) where the signal transmission device is located, without Affects the signal chain performance of the above devices.
在一个实施例中，参考图2所示，上述信号传输装置，还可以包括基带接口电路15，所述基带接口电路15连接在信号收发芯片14的基带信号端和直放站通信设备的主控单元之间；In an embodiment, as shown in FIG. 2, the above signal transmission device may further include a baseband interface circuit 15 connected to the baseband signal end of the signal transceiving chip 14 and the main control of the repeater communication device. Between units;
所述基带接口电路15将信号收发芯片输出的数字信号传输至直放站通信设备的主控单元。The baseband interface circuit 15 transmits the digital signal output by the signal transceiving chip to the main control unit of the repeater communication device.
具体地，上述基带接口电路15可以设置高速传输通道和低速传输通道，上述数字信号可以包括数字信号数据和数字控制数据，可以通过上述高速传输通道传输数字信号数据，以保证数字信号数据的传输效率，通过上述低速传输通道传输相对简单的数字控制数据，以保证传输过程中的有序性和稳定性。Specifically, the baseband interface circuit 15 may be provided with a high speed transmission channel and a low speed transmission channel, and the digital signal may include digital signal data and digital control data, and the digital signal data may be transmitted through the high speed transmission channel to ensure the transmission efficiency of the digital signal data. The relatively simple digital control data is transmitted through the above low-speed transmission channel to ensure order and stability in the transmission process.
本实施中，信号收发芯片14进行数字化处理所产生的数字信号可以通过基带接口电路15发送至直放站通信设备的主控单元，使相应的信号传输装置向直放站通信设备及时传输其接收的通信信号，以保证通信信号在上述信号传输装 置进行相应传输的顺利性。In this implementation, the digital signal generated by the digital processing of the signal transceiving chip 14 can be sent to the main control unit of the repeater communication device through the baseband interface circuit 15, so that the corresponding signal transmission device transmits the reception to the repeater communication device in time. The communication signal ensures the smoothness of the corresponding transmission of the communication signal in the above signal transmission device.
作为一个实施例，如图3所示，上述信号收发芯片14的控制端可以分别连接功率放大模块12的控制端、低噪声放大模块13的控制端；As shown in FIG. 3, the control end of the signal transceiving chip 14 can be respectively connected to the control end of the power amplifying module 12 and the control end of the low noise amplifying module 13;
所述信号收发芯片14在进行射频信号的收发工作时，分别向所述功率放大模块12的控制端和低噪声放大模块13的控制端发送控制信号，控制所述功率放大模块12和低噪声放大模块13进入工作状态。The signal transceiving chip 14 sends a control signal to the control end of the power amplifying module 12 and the control end of the low noise amplifying module 13 to control the power amplifying module 12 and low noise amplification when performing radio frequency signal transceiving work. Module 13 enters the working state.
上述信号收发芯片14的控制端分别连接功率放大模块12的控制端、低噪声放大模块13的控制端，在需要上述功率放大模块12和低噪声放大模块13进行相应的信号放大工作时，信号收发芯片14便可以分别向功率放大模块12和低噪声放大模块13的控制端发送相关电平信号等控制信号控制功率放大模块12和低噪声放大模块13进入工作状态。可选地，上述信号收发芯片14还可以通过其控制端控制功率放大模块12进行栅压检测和功率检测等检测工作。The control end of the signal transceiving chip 14 is respectively connected to the control end of the power amplifying module 12 and the control end of the low noise amplifying module 13. When the power amplifying module 12 and the low noise amplifying module 13 are required to perform corresponding signal amplifying work, the signal is transmitted and received. The chip 14 can respectively send control signals such as correlation level signals to the control terminals of the power amplification module 12 and the low noise amplification module 13 to control the power amplification module 12 and the low noise amplification module 13 to enter an active state. Optionally, the signal transceiver chip 14 can also control the power amplification module 12 to perform gate voltage detection and power detection and the like through its control end.
作为一个实施例，如图3所示，上述信号传输装置所在直放站通信设备的主控单元51可以通过上述基带接口电路15分别连接收发芯片14的控制端、功率放大模块12的控制端及低噪声放大模块13的控制端。主控单元51可以通过上述基带接口电路15分别向收发芯片14的控制端、功率放大模块12的控制端及低噪声放大模块13的控制端发送控制信号，控制上述信号收发芯片14、功率放大模块12及低噪声放大模块13进入工作状态。As an embodiment, as shown in FIG. 3, the main control unit 51 of the repeater communication device in which the signal transmission device is located may be respectively connected to the control end of the transceiver chip 14 and the control terminal of the power amplification module 12 through the baseband interface circuit 15 and The control terminal of the low noise amplification module 13. The main control unit 51 can send a control signal to the control end of the transceiver chip 14, the control end of the power amplification module 12, and the control end of the low noise amplification module 13 through the baseband interface circuit 15, and control the signal transceiver chip 14 and the power amplification module. 12 and the low noise amplification module 13 enters the working state.
在一个实施例中，参考图4所示，上述信号传输装置，还可以包括时钟芯片21，所述时钟芯片21的第一端连直放站通信设备的主控单元，所述时钟芯片21的第二端连接信号收发芯片14的时钟端，所述时钟芯片21的第三端基带接口电路的时钟端；In an embodiment, as shown in FIG. 4, the signal transmission device may further include a clock chip 21, the first end of the clock chip 21 is connected to a main control unit of the repeater communication device, and the clock chip 21 is The second end is connected to the clock end of the signal transceiving chip 14, and the third end of the clock chip 21 is connected to the clock end of the interface circuit;
所述时钟芯片21从所述主控单元获取参考时钟，根据所述参考时钟将所述 信号收发芯片的数字信号进行相噪优化，使用零延迟功能将参考时钟和输出时钟时序固定，还根据所述参考时钟对基带接口电路处的数字信号进行时钟对齐处理。The clock chip 21 acquires a reference clock from the main control unit, performs phase noise optimization on the digital signal of the signal transceiving chip according to the reference clock, and fixes the reference clock and the output clock timing by using a zero delay function, and further The reference clock clocks the digital signals at the baseband interface circuitry.
本实施例所提供的时钟芯片21可以从信号传输装置所在的近端机或者远端机等直放站通信设备的主控单元获取参考时钟，以对信号传输装置进行相噪优化、时序固定以及时钟对齐等时钟优化处理，可以保证信号传输装置与其所在的近端机或者远端机的时钟同源，进行时钟芯片锁相，提供性能优异的工作参考时钟，保证相关工作时序的一致性，进而提高相应近端机或者远端机等直放站通信设备所接收的通信信号的质量。The clock chip 21 provided in this embodiment may acquire a reference clock from a main control unit of a repeater communication device such as a near-end machine or a remote machine where the signal transmission device is located, to perform phase noise optimization, timing fixation, and the signal transmission device. Clock alignment and other clock optimization processing can ensure that the signal transmission device is homologous to the clock of the near-end machine or the remote machine where it is located, clock phase locking is performed, and a working reference clock with excellent performance is provided to ensure the consistency of the relevant working timing, and further Improve the quality of the communication signal received by the repeater communication device such as the near-end machine or the remote machine.
作为一个实施例，上述时钟芯片可以采用LMK04828实现，时钟芯片的工作示意图可以参考图5所示，如图5所示，上述时钟芯片可以连接在相应直放站通信设备的主控单元与信号传输装置之间，时钟芯片从主控单元获取参考时钟，并将其自身的时钟与主控单元的时钟进行对齐处理，以精确校准其携带的时钟，再对上述信号传输装置进行相噪优化、时序固定以及时钟对齐等时钟优化处理，能够实现较长距离的参考时钟高质量传输，采用零延迟功能和时序微调实现相应信号传输装置中所传输数据的精准时延对齐。上述时钟芯片的参考时钟可以采用时钟恢复方式产生，可以达到优化时钟相噪，提高通信信号性能的目的。As an embodiment, the clock chip can be implemented by using LMK04828. The working diagram of the clock chip can be referred to FIG. 5. As shown in FIG. 5, the clock chip can be connected to the main control unit and signal transmission of the corresponding repeater communication device. Between the devices, the clock chip acquires the reference clock from the main control unit, and aligns its own clock with the clock of the main control unit to accurately calibrate the clock it carries, and then performs phase noise optimization and timing on the signal transmission device. Clock optimization such as fixed and clock alignment enables high-quality transmission of reference clocks over long distances, zero delay and timing fine-tuning for precise delay alignment of data transmitted in corresponding signal transmission devices. The reference clock of the above clock chip can be generated by using a clock recovery mode, which can achieve the purpose of optimizing clock phase noise and improving communication signal performance.
在一个实施例中，参考图6所示，上述功率放大模块12的各个信号接收端分别具有对应的信号输出端和耦合端，各个耦合端分别连接所述信号收发芯片14的反馈接收端；In an embodiment, as shown in FIG. 6, each of the signal receiving ends of the power amplifying module 12 has a corresponding signal output end and a coupling end, and each of the coupling ends is respectively connected to a feedback receiving end of the signal transceiver chip 14;
所述功率放大模块12从信号输出端的射频信号中获取耦合信号，将所述耦合信号通过该信号接收端对应的耦合端反馈至信号收发芯片14；上述信号输出 端的射频信号为功率放大模块12放大后的射频信号；The power amplification module 12 obtains a coupling signal from the radio frequency signal of the signal output end, and feeds the coupling signal to the signal transceiving chip 14 through the corresponding coupling end of the signal receiving end; the radio frequency signal of the signal output end is amplified by the power amplifying module 12 After the radio frequency signal;
所述信号收发芯片14通过所述耦合信号以及接收的基带下行信号对下一次发送的同类射频信号进行预失真处理。The signal transceiving chip 14 performs predistortion processing on the same type of radio frequency signal transmitted next through the coupled signal and the received baseband downlink signal.
上述基带下行信号为信号传输装置所在直放站通信设备的主控单元发送至信号收发芯片14的信号。The baseband downlink signal is a signal sent by the main control unit of the repeater communication device where the signal transmission device is located to the signal transceiving chip 14.
作为一个实施例，上述信号收发芯片14可以从耦合信号和基带下行信号中提取预失真信号参数，根据所述预失真信号参数校正下一次发送的同类射频信号中所述预失真信号参数对应的信号线性参数，以实现对射频信号的预失真处理，保证后续发送的射频信号的准确性。As an embodiment, the signal transceiving chip 14 may extract a predistortion signal parameter from the coupled signal and the baseband downlink signal, and correct a signal corresponding to the predistortion signal parameter in the same type of radio frequency signal to be transmitted next according to the predistortion signal parameter. Linear parameters to achieve pre-distortion processing of the RF signal to ensure the accuracy of the subsequently transmitted RF signal.
本实施例提供的信号传输装置，对后续发送的射频信号进行预失真处理，以提高信号传输装置的线性指标。The signal transmission device provided in this embodiment performs predistortion processing on the subsequently transmitted radio frequency signal to improve the linearity index of the signal transmission device.
参考图7所示，图7为一个实施例的信号传输装置的测试设备结构示意图，包括测试信号发生器31和测试分析仪32；Referring to FIG. 7, FIG. 7 is a schematic structural diagram of a test apparatus of a signal transmission apparatus according to an embodiment, including a test signal generator 31 and a test analyzer 32;
所述测试信号发生器31连接上述任意一个实施例所述信号传输装置10的射频接口电路11，所述测试分析仪32连接上述任意一个实施例所述信号传输装置10的基带接口电路15；The test signal generator 31 is connected to the radio frequency interface circuit 11 of the signal transmission device 10 of any one of the above embodiments, and the test analyzer 32 is connected to the baseband interface circuit 15 of the signal transmission device 10 of any one of the above embodiments;
所述测试信号发生器31产生测试信号，将所述测试信号通过所述射频接口电路15输入所述信号传输装置10；The test signal generator 31 generates a test signal, and the test signal is input to the signal transmission device 10 through the radio frequency interface circuit 15;
所述测试分析仪32获取信号传输装置10通过基带接口电路输出的数字信号，识别所述数字信号的信号参数，根据所述信号参数获取测试结果。The test analyzer 32 obtains a digital signal output by the signal transmission device 10 through the baseband interface circuit, identifies a signal parameter of the digital signal, and acquires a test result according to the signal parameter.
上述信号参数可以包括信号增益、输出功率以及线性度等参数。本实施例提供的信号传输装置的测试设备，可以对信号传输装置10的通信信号传输功能进行相应的测试，及时对其在信号传输过程中的通信故障进行检测以及相应的 处理，进一步保证信号传输装置10的工作稳定性，提高其工作性能。The above signal parameters may include parameters such as signal gain, output power, and linearity. The test device of the signal transmission device provided in this embodiment can perform corresponding tests on the communication signal transmission function of the signal transmission device 10, timely detect and handle the communication failure in the signal transmission process, and further ensure signal transmission. The working stability of the device 10 improves its working performance.
在一个实施例中，参考图8所示，上述测试信号发生器包括多个模组接口，所述测试分析仪包括多个信号输入接口；In one embodiment, referring to FIG. 8, the test signal generator includes a plurality of module interfaces, and the test analyzer includes a plurality of signal input interfaces;
所述测试信号发生器的各个模组接口分别通过一个信号传输装置连接测试分析仪中互不相同的信号输入接口。The module interfaces of the test signal generator are respectively connected to different signal input interfaces in the test analyzer through a signal transmission device.
上述测试信号发生器的多个模组接口，即多个接入射频接口电路的接口，可以提供各个模组接口所接入的信号传输装置的测试，也可以实现相同基带接口的其他设备的测试，其还可以支持串口和网口通信，测试分析仪包括多个接入基带接口电路的接口(信号输入接口)；上述模组接口可以与信号输入接口一一对应，即任意一个模组接口具有唯一对应的信号输入接口，相对应的一组模组接口与信号输入接口可以称为一组接口。参考图8所示，上述测试信号发生器和测试分析仪之间可以接入多个信号传输装置，各个信号传输装置连接在测试信号发生器和测试分析仪的一组接口之间，测试信号发生器可以产生测试信号，将测试信号分别发送至各个信号传输装置，各个信号传输装置将依据测试信号进行相应处理得到的数字信号通过基带接口电路发送分别至测试分析仪，测试分析仪识别各个信号传输装置所发送的数字信号，根据上述数字信号对上述多个信号传输装置进行合路测试，以提高上述信号传输装置的测试效率。The plurality of module interfaces of the test signal generator, that is, the interfaces of the plurality of access to the radio frequency interface circuit, can provide the test of the signal transmission device connected to each module interface, and can also test other devices of the same baseband interface. It can also support serial port and network port communication. The test analyzer includes multiple interfaces (signal input interfaces) for accessing the baseband interface circuit; the above module interfaces can be in one-to-one correspondence with the signal input interfaces, that is, any one of the module interfaces has The only corresponding signal input interface, the corresponding set of module interface and signal input interface can be called a set of interfaces. Referring to FIG. 8, a plurality of signal transmission devices can be connected between the test signal generator and the test analyzer, and each signal transmission device is connected between a test signal generator and a set of interfaces of the test analyzer, and the test signal occurs. The device can generate a test signal, and send the test signal to each signal transmission device respectively, and the digital signal obtained by each signal transmission device according to the test signal is sent to the test analyzer through the baseband interface circuit, and the test analyzer recognizes each signal transmission. The digital signal transmitted by the device performs a combined test on the plurality of signal transmission devices according to the digital signal to improve the test efficiency of the signal transmission device.
具体地，在对各个信号传输装置的各个器件进行相应连接，确认信号传输装置连线正常，并进行上电运行后，对上述多个信号传输装置进行合路测试的测试流程图可以参考图9所示，包括如下步骤：Specifically, after performing corresponding connection on each device of each signal transmission device, confirming that the signal transmission device is normally connected, and performing a power-on operation, a test flow chart of performing a combined test on the plurality of signal transmission devices may refer to FIG. As shown, the following steps are included:
S61，检测信号收发芯片的射频接收端、反馈接收端的输入功率，进行功率统计；S61, detecting input power of the radio frequency receiving end and the feedback receiving end of the signal transmitting and receiving chip, and performing power statistics;
S62，判断功率统计是否正常；S62, determining whether the power statistics are normal;
S63，若功率统计不正常，则确认信号收发芯片的增益有无问题，根据确认结果对信号收发芯片调试至正常后，返回步骤S61；S63, if the power statistics are not normal, then confirm the gain of the signal transceiver chip, if the signal transceiver chip is debugged to normal according to the confirmation result, return to step S61;
S64，若功率统计正常，则检测基带接口电路发送的信号(基带发射信号)；S64, if the power statistics are normal, detecting a signal (baseband transmission signal) sent by the baseband interface circuit;
S65，读取基带发射信号的输出功率，检测发射信号的输出相噪，确认相噪等信号参数是否正常；S65, reading the output power of the baseband transmit signal, detecting the output phase noise of the transmit signal, and confirming whether the phase noise and other signal parameters are normal;
S66，若信号参数不正常(存在问题)，则确认输出功率大小有无问题，根据确认结果将基带接口电路调试正常，返回步骤S64；S66, if the signal parameter is abnormal (there is a problem), it is confirmed whether there is a problem with the output power level, according to the confirmation result, the baseband interface circuit is debugged normally, and the process returns to step S64;
S67，若相噪正常，则运行(信号传输装置的)数字预失真功能；S67, if the phase noise is normal, the digital predistortion function (of the signal transmission device) is operated;
S68，测试(信号传输装置发射的)信号线性度，并在上述信号线性度测试正常后，统计各项测试结果；S68, testing the linearity of the signal (transmitted by the signal transmission device), and after the above linearity test of the signal is normal, counting the test results;
S69，若信号线性度测试不正常，则返回各个信号传输装置进行相应的检查。S69, if the signal linearity test is not normal, return to each signal transmission device for corresponding inspection.
一种直放站通信设备，包括上述任意一个实施例所述的信号传输装置；A repeater communication device, comprising the signal transmission device of any one of the above embodiments;
所述直放站通信设备的天线接口连接所述信号传输装置的射频接口，所述直放站通信设备的主控单元连接所述信号传输装置中信号收发芯片的基带信号端。The antenna interface of the repeater communication device is connected to the radio frequency interface of the signal transmission device, and the main control unit of the repeater communication device is connected to the baseband signal end of the signal transceiving chip in the signal transmission device.
上述直放站通信设备可以为直放站的近端机或者远端机等通信设备。The above repeater communication device may be a communication device such as a near-end machine or a remote machine of the repeater.
本实施例提供的直放站通信设备，采用信号传输装置进行通信信号传输，对多种通信信号的传输进行了有效简化。The repeater communication device provided in this embodiment uses a signal transmission device to perform communication signal transmission, and effectively simplifies the transmission of various communication signals.
在一个实施例中，参考图10所示，上述直放站通信设备，还可以包括多个多工器；In an embodiment, referring to FIG. 10, the above repeater communication device may further include a plurality of multiplexers;
任意一个多工器分别连接在直放站通信设备一个天线接口和一个信号传输装置的射频接口之间。Any one of the multiplexers is connected between an antenna interface of the repeater communication device and a radio frequency interface of a signal transmission device.
具体地，上述多工器是全双工的，包括第一端和第二端，任意一个多工器 的第一端分别连接一个天线接口(直放站通信设备设置多个天线接口)，各多工器的任意第二端分别通过一个信号传输装置连接所述主控单元。Specifically, the multiplexer is full-duplex, including a first end and a second end, and the first end of any one multiplexer is respectively connected to an antenna interface (a repeater communication device is provided with multiple antenna interfaces), and each Any second end of the multiplexer is connected to the main control unit via a signal transmission device.
本实施例提供的直放站通信设备可以接入多个上述信号传输装置，各个信号传输装置均可以实现多类型或多制式通信信号的传输，因而上述直放站通信设备可以实现不同类型或制式的通信信号传输功能，通过主控单元完成相应的数字信号传输，还可以实现整板一体化控制，数字模组监控等功能。The repeater communication device provided in this embodiment can access a plurality of the above signal transmission devices, and each of the signal transmission devices can realize transmission of multi-type or multi-standard communication signals, so that the above-mentioned repeater communication device can implement different types or formats. The communication signal transmission function completes the corresponding digital signal transmission through the main control unit, and can also realize the functions of integrated control of the whole board and digital module monitoring.
在一个实施例中，上述主控单元通过所述基带接口电路分别连接收发芯片的控制端、功率放大模块的控制端和低噪声放大模块的控制端；In an embodiment, the main control unit is respectively connected to the control end of the transceiver chip, the control end of the power amplification module, and the control end of the low noise amplification module through the baseband interface circuit;
所述主控单元通过所述基带接口电路分别向收发芯片、功率放大模块和低噪声放大模块发送控制信号，控制所述收发芯片、功率放大模块和低噪声放大模块进入工作状态。The main control unit sends a control signal to the transceiver chip, the power amplification module, and the low noise amplification module through the baseband interface circuit, and controls the transceiver chip, the power amplification module, and the low noise amplification module to enter a working state.
具体地，直放站通信设备在工作过程中，信号收发芯片接收低噪声放大电路发送的外部射频信号，将外部射频信号转换为基带信号，通基带接口电路传输至主控单元。主控单元可以发送基带下行信号至信号收发芯片，使信号收发芯片根据上述基带下行信号获取射频信号，发送至功率放大模块。在直放站通信设备进行相应信号发送和接收的过程中，其主控单元可以通过基带接口电路分别发送相关电平信号等控制信号至收发芯片、功率放大模块和低噪声放大模块，控制收发芯片进行相应的信号处理工作，还可以分别控制功率放大模块和低噪声放大模块进行信号放大工作。Specifically, during the working process of the repeater communication device, the signal receiving and receiving chip receives the external radio frequency signal sent by the low noise amplifying circuit, converts the external radio frequency signal into a baseband signal, and transmits the baseband interface circuit to the main control unit. The main control unit may send the baseband downlink signal to the signal transceiver chip, so that the signal transceiver chip acquires the radio frequency signal according to the baseband downlink signal, and sends the signal to the power amplification module. In the process of transmitting and receiving corresponding signals by the repeater communication device, the main control unit can respectively send control signals such as relevant level signals to the transceiver chip, the power amplification module and the low noise amplification module through the baseband interface circuit, and control the transceiver chip. The corresponding signal processing work is performed, and the power amplification module and the low noise amplification module can be respectively controlled to perform signal amplification work.
本发明还提供一种数字直放站，包括如上所述的近端机、远端机等直放站通信设备，上述数字直放站通过其中的信号传输装置(或替换为所传输通信信号对应的信号传输装置)能够实现不同制式的信号传输功能。其中的信号传输装置可以通过替换放大管、巴伦，更改信号收发芯片(如超宽带收发芯片)的 本振频率可以实现不同频段及制式的通信信号的收发，有效降低了收发各类或者各制式通信信号的复杂度。The present invention also provides a digital repeater, comprising a repeater communication device such as a near-end machine and a remote machine as described above, wherein the digital repeater passes the signal transmission device therein (or replaces the transmitted communication signal correspondingly The signal transmission device can realize the signal transmission function of different standards. The signal transmission device can replace the amplification tube, the balun, and change the local oscillator frequency of the signal transceiver chip (such as the ultra-wideband transceiver chip) to realize the transmission and reception of communication signals of different frequency bands and standards, thereby effectively reducing the transmission and reception of various types or standards. The complexity of the communication signal.
上述数字直放站中，各个信号传输装置对应的信号链分立模块可以采用集成器件方案，采用高速串行传输接口，实现精简传输，各个信号传输装置与主控单元之间进行基带传输，各个信号传输装置之间所传输的信号互不干扰，不同分立的信号传输装置间的通道隔离度高；分立信号传输装置参考时钟采用时钟恢复方式，能够实现较长距离的参考时钟高质量传输，采用零延迟和时序微调实现数据传输的精准时延对齐；各个信号链分立模块(信号传输装置)具备数字预失真功能，能够将功放模块尺寸小型化，降低整体功耗；各个分立信号传输装置可以完成相应模块内所有模拟量检测以及模拟量电压的提供，精简接口设计，节省***的成本；各个信号链分立模块的各接口可以进行简易化设计，支持统一工装下的单模块调试，具有较高的生产效率。In the above digital repeater, the signal chain discrete module corresponding to each signal transmission device can adopt an integrated device scheme, adopts a high-speed serial transmission interface, realizes compact transmission, and performs baseband transmission between each signal transmission device and the main control unit, and each signal The signals transmitted between the transmission devices do not interfere with each other, and the channel isolation between different discrete signal transmission devices is high; the reference signal of the discrete signal transmission device adopts a clock recovery mode, which can realize high-quality transmission of reference clocks with longer distances, using zero Delay and timing fine-tuning enable accurate time delay alignment of data transmission; each signal chain discrete module (signal transmission device) has digital pre-distortion function, which can reduce the size of the power amplifier module and reduce the overall power consumption; each discrete signal transmission device can complete the corresponding All analog detection and analog voltage supply in the module, streamline interface design, save system cost; each interface of each signal chain discrete module can be simplified design, support single module debugging under uniform tooling, with high production effectiveness.
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。The technical features of the above-described embodiments may be arbitrarily combined. For the sake of brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be considered as the scope of this manual.
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。The above-described embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims (11)

  1. 一种信号传输装置，其特征在于，包括：射频接口电路，功率放大模块，低噪声放大模块，以及具有多个射频发射端和射频接收端的信号收发芯片；A signal transmission device, comprising: a radio frequency interface circuit, a power amplification module, a low noise amplification module, and a signal transceiving chip having a plurality of radio frequency transmitting ends and a radio frequency receiving end;
    所述功率放大模块设有多个信号接收端，所述低噪声放大模块设有多个信号发送端；The power amplification module is provided with a plurality of signal receiving ends, and the low noise amplification module is provided with a plurality of signal transmitting ends;
    所述信号收发芯片的各个射频发射端分别连接所述功率放大模块的信号接收端，构成信号发射通道，所述信号收发芯片的各个射频接收端分别连接低噪声放大模块的信号发送端，构成信号接收通道，每个信号发射通道对应一个信号接收通道，所述信号发射通道与对应的信号接收通道传输一种类型的射频信号；Each of the radio frequency transmitting ends of the signal transceiving chip is respectively connected to a signal receiving end of the power amplifying module to form a signal transmitting channel, and each radio frequency receiving end of the signal transceiving chip is respectively connected to a signal transmitting end of the low noise amplifying module to form a signal. a receiving channel, each signal transmitting channel corresponding to a signal receiving channel, wherein the signal transmitting channel and the corresponding signal receiving channel transmit one type of radio frequency signal;
    所述低噪声放大模块将射频接口电路接收的外部射频信号传输至信号收发芯片；The low noise amplification module transmits an external radio frequency signal received by the radio frequency interface circuit to the signal transceiving chip;
    所述信号收发芯片通过信号发射通道将射频信号发送至功率放大模块，并对所接收的射频信号进行数字化处理得到数字信号输出；The signal transceiving chip sends the radio frequency signal to the power amplifying module through the signal transmitting channel, and digitally processes the received radio frequency signal to obtain a digital signal output;
    所述功率放大模块将接收的射频信号通过所述射频接口电路进行输出。The power amplification module outputs the received radio frequency signal through the radio frequency interface circuit.
  2. 根据权利要求1所述的信号传输装置，其特征在于，还包括基带接口电路，所述基带接口电路连接在信号收发芯片的基带信号端和直放站通信设备的主控单元之间；The signal transmission device according to claim 1, further comprising a baseband interface circuit connected between the baseband signal end of the signal transceiving chip and the main control unit of the repeater communication device;
    所述基带接口电路将信号收发芯片输出的数字信号传输至直放站通信设备的主控单元。The baseband interface circuit transmits the digital signal output by the signal transceiving chip to the main control unit of the repeater communication device.
  3. 根据权利要求2所述的信号传输装置，其特征在于，所述信号收发芯片的控制端分别连接功率放大模块的控制端、低噪声放大模块的控制端；The signal transmission device according to claim 2, wherein the control end of the signal transceiving chip is respectively connected to the control end of the power amplifying module and the control end of the low noise amplifying module;
    所述信号收发芯片在进行射频信号的收发工作时，分别向所述功率放大模块的控制端和低噪声放大模块的控制端发送控制信号，控制所述功率放大模块和低 噪声放大模块进入工作状态。The signal transceiving chip sends a control signal to the control end of the power amplifying module and the control end of the low noise amplifying module to control the power amplifying module and the low noise amplifying module to enter a working state when performing radio frequency signal transceiving work. .
  4. 根据权利要求2或3所述的信号传输装置，其特征在于，还包括时钟芯片，所述时钟芯片的第一端连接直放站通信设备的主控单元，所述时钟芯片的第二端连接信号收发芯片的时钟端，所述时钟芯片的第三端连接基带接口电路的时钟端；The signal transmission device according to claim 2 or 3, further comprising a clock chip, wherein the first end of the clock chip is connected to a main control unit of the repeater communication device, and the second end of the clock chip is connected a clock end of the signal transceiving chip, wherein the third end of the clock chip is connected to the clock end of the baseband interface circuit;
    所述时钟芯片从所述主控单元获取参考时钟，根据所述参考时钟将所述信号收发芯片的数字信号进行相噪优化，使用零延迟功能将参考时钟和输出时钟时序固定，还根据所述参考时钟对基带接口电路处的数字信号进行时钟对齐处理。The clock chip acquires a reference clock from the main control unit, performs phase noise optimization on the digital signal of the signal transceiver chip according to the reference clock, and fixes the reference clock and the output clock timing by using a zero delay function, according to the The reference clock clocks the digital signal at the baseband interface circuit.
  5. 根据权利要求1至4任一项所述的信号传输装置，其特征在于，所述功率放大模块的各个信号接收端分别具有对应的信号输出端和耦合端，各个耦合端分别连接所述信号收发芯片的反馈接收端；The signal transmission device according to any one of claims 1 to 4, wherein each signal receiving end of the power amplifying module has a corresponding signal output end and a coupling end, and each coupling end is respectively connected to the signal transmitting and receiving. The feedback receiving end of the chip;
    所述功率放大模块从信号输出端的射频信号中获取耦合信号，将所述耦合信号通过该信号接收端对应的耦合端反馈至信号收发芯片；The power amplification module obtains a coupling signal from a radio frequency signal at a signal output end, and feeds the coupling signal to a signal transceiving chip through a corresponding coupling end of the signal receiving end;
    所述信号收发芯片通过所述耦合信号以及接收的基带下行信号对下一次发送的同类射频信号进行预失真处理。The signal transceiving chip performs predistortion processing on the next radio frequency signal transmitted by the coupled signal and the received baseband downlink signal.
  6. 根据权利要求5所述的信号传输装置，其特征在于，所述信号收发芯片从耦合信号和基带下行信号中提取预失真信号参数，根据所述预失真信号参数校正下一次发送的同类射频信号中所述预失真信号参数对应的信号线性参数。The signal transmission device according to claim 5, wherein the signal transceiving chip extracts predistortion signal parameters from the coupled signal and the baseband downlink signal, and corrects the same type of radio frequency signal transmitted next according to the predistortion signal parameter. The signal linear parameter corresponding to the predistortion signal parameter.
  7. 一种信号传输装置的测试设备，其特征在于，包括测试信号发生器和测试分析仪；A testing device for a signal transmission device, comprising: a test signal generator and a test analyzer;
    所述测试信号发生器连接权利要求1至6任一项所述的射频接口电路，所述测试分析仪连接权利要求1至6任一项所述的基带接口电路；The test signal generator is connected to the radio frequency interface circuit according to any one of claims 1 to 6, the test analyzer being connected to the baseband interface circuit according to any one of claims 1 to 6;
    所述测试信号发生器产生测试信号，将所述测试信号通过所述射频接口电路 输入所述信号传输装置；The test signal generator generates a test signal, and the test signal is input to the signal transmission device through the radio frequency interface circuit;
    所述测试分析仪获取信号传输装置通过基带接口电路输出的数字信号，识别所述数字信号的信号参数，根据所述信号参数获取测试结果。The test analyzer obtains a digital signal output by the signal transmission device through the baseband interface circuit, identifies a signal parameter of the digital signal, and acquires a test result according to the signal parameter.
  8. 根据权利要求7所述的信号传输装置的测试设备，其特征在于，所述测试信号发生器包括多个模组接口，所述测试分析仪包括多个信号输入接口；The testing device of the signal transmission device according to claim 7, wherein the test signal generator comprises a plurality of module interfaces, and the test analyzer comprises a plurality of signal input interfaces;
    所述测试信号发生器的各个模组接口分别通过一个信号传输装置连接测试分析仪中互不相同的信号输入接口。The module interfaces of the test signal generator are respectively connected to different signal input interfaces in the test analyzer through a signal transmission device.
  9. 一种直放站通信设备，其特征在于，包括权利要求1至6任一项所述的信号传输装置；A repeater communication device, comprising the signal transmission device according to any one of claims 1 to 6;
    所述直放站通信设备的天线接口连接所述信号传输装置的射频接口，所述直放站通信设备的主控单元连接所述信号传输装置中信号收发芯片的基带信号端。The antenna interface of the repeater communication device is connected to the radio frequency interface of the signal transmission device, and the main control unit of the repeater communication device is connected to the baseband signal end of the signal transceiving chip in the signal transmission device.
  10. 根据权利要求9所述的直放站通信设备，其特征在于，还包括多个多工器；A repeater communication device according to claim 9, further comprising a plurality of multiplexers;
    任意一个多工器分别连接在直放站通信设备一个天线接口和一个信号传输装置的射频接口之间。Any one of the multiplexers is connected between an antenna interface of the repeater communication device and a radio frequency interface of a signal transmission device.
  11. 根据权利要求9或10所述的直放站通信设备，其特征在于，所述主控单元通过所述基带接口电路分别连接收发芯片的控制端、功率放大模块的控制端和低噪声放大模块的控制端；The repeater communication device according to claim 9 or 10, wherein the main control unit is respectively connected to the control end of the transceiver chip, the control end of the power amplification module, and the low noise amplification module through the baseband interface circuit. Control terminal;
    所述主控单元通过所述基带接口电路分别向收发芯片、功率放大模块和低噪声放大模块发送控制信号，控制所述收发芯片、功率放大模块和低噪声放大模块进入工作状态。The main control unit sends a control signal to the transceiver chip, the power amplification module, and the low noise amplification module through the baseband interface circuit, and controls the transceiver chip, the power amplification module, and the low noise amplification module to enter a working state.
PCT/CN2018/097587 2017-11-02 2018-07-27 Signal transmission apparatus and test device thereof, and repeater communication device WO2019085556A1 (en)

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