CN109076641A - Signal processing method and microwave telecommunication devices - Google Patents

Signal processing method and microwave telecommunication devices Download PDF

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Publication number
CN109076641A
CN109076641A CN201680084783.3A CN201680084783A CN109076641A CN 109076641 A CN109076641 A CN 109076641A CN 201680084783 A CN201680084783 A CN 201680084783A CN 109076641 A CN109076641 A CN 109076641A
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China
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digital signal
odu
signal
digital
analog
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母国标
黄志军
陈鹏
杜元军
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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  • Radio Relay Systems (AREA)

Abstract

The embodiment of the present invention provides a kind of signal processing method and microwave telecommunication devices, comprising: IDU and ODU；IDU includes: encoder, interpolating module and the first digital signal interface；ODU includes: the second digital signal interface and ODU output control module；Encoder obtains the first digital signal for being encoded to sent data；Interpolating module obtains the second digital signal, exports the second digital signal to ODU output control module by the first digital signal interface and the second digital signal interface for carrying out variable Rate interpolation processing to first digital signal；ODU output control module carries out DPD, digital-to-analogue conversion, modulation and power amplification to the second digital signal and handles, obtains the first analog signal.Digital data transmission is realized between IDU and ODU, the reduction so that analog signal decays in transmission process, and then reduce and need the amplification carried out to analog signal to offset attenuation losses, therefore reduce costs.

Description

Signal processing method and microwave telecommunication devices Technical field
The present embodiments relate to field of communication technology more particularly to a kind of signal processing methods and microwave telecommunication devices.
Background technique
Existing microwave telecommunication devices are split type structure, are divided into outdoor unit (English: Outdoor unit, abbreviation: ODU) and indoor unit (English: Indoor unit, abbreviation: IDU).Wherein, ODU is placed on outdoor, IDU is placed indoors, wherein, ODU is connect with IDU by dummycable, what is transmitted between ODU and IDU is analog signal, and IDU encodes service signal to be transmitted, digital predistortion compensation (English: Digital Pre-distortion, referred to as: DPD), link-quality control (English: Quality Monitor Control, after referred to as: QMC) handling, digital-to-analogue conversion is carried out again, and it is modulated to IF frequency (English: intermediate frequency, referred to as: IF) on (usual 350M/140M), by cable ODU will be sent to for the analog signal of 350M/140M, O DU emits the analog signal received by double conversion again to microwave frequency band and after carrying out power amplification, to complete the microwave transmission of signal.
But the transmission link of existing analog signal is longer, analog signal decays larger in transmission process, needs to carry out analog signal bigger amplification to offset attenuation losses, so that cost increase.
Summary of the invention
The embodiment of the present invention provides a kind of signal processing method and microwave telecommunication devices, for realizing digital data transmission between IDU and ODU, reduce decaying of the analog signal in transmission process, and then reduce and need the amplification carried out to analog signal to offset attenuation losses before transmission, to reduce cost.
In a first aspect, the embodiment of the present invention provides a kind of microwave telecommunication devices, comprising: IDU and ODU；
The IDU includes: encoder, interpolating module and the first digital signal interface；The interpolating module is connect with the encoder；
The ODU includes: the second digital signal interface and ODU output control module；First digital signal interface is connect with second digital signal interface；
The encoder obtains the first digital signal, and export first digital signal to the interpolating module for being encoded to sent data；
The interpolating module, for inputting first digital signal of the encoder output, variable Rate interpolation processing is carried out to first digital signal, the second digital signal is obtained, second digital signal is exported to the ODU output control module by first digital signal interface and second digital signal interface；
The ODU output control module, for inputting second digital signal by first digital signal interface and second digital signal interface, and second digital signal is subjected to DPD, digital-to-analogue conversion, modulation and power amplification and is handled, the first analog signal is obtained, first analog signal is emitted by antenna equipment；Wherein, second digital signal belongs to baseband signal, and first analog signal belongs to microwave signal.
Optionally, the IDU further include: N number of encoder, N number of encoder are connect with the interpolating module, and the N is the integer more than or equal to 1；The ODU further include: N number of ODU output control module；
The interpolating module, it is also used to input first digital signal of N number of encoder output, the first digital signal described in the road N carries out variable Rate interpolation processing, the second digital signal of the road N is obtained, second digital signal of the road N is exported to N number of ODU output control module by first digital signal interface and second digital signal interface.
Optionally, the IDU further include: N number of encoder and N number of interpolating module, N number of encoder are connect with N number of interpolating module respectively；The ODU further include: N number of ODU output control module；The N is the integer more than or equal to 1.
Optionally, first digital signal interface, for inputting second digital signal of the road N+1, framing is carried out to second digital signal of the road N+1 according to the default frame format for the digital signal transmitted between first digital signal interface and second digital signal interface and scrambling code is handled, third digital signal is obtained, the second digital signal interface of Xiang Suoshu exports the third digital signal；
Second digital signal interface, for inputting the third digital signal, and descrambling code and frame decoding processing are carried out to the third digital signal according to the default frame format, second digital signal of the road N+1 is obtained, exports second digital signal of the road N+1 respectively to the N+1 ODU output control modules.
Optionally, the default frame format: frame head, frame overhead, clock information, N+1 railway digital signal.
Optionally, the ODU output control module includes: DPD module, digital analog converter (English: Digital to analog converter, referred to as: DAC), frequency mixer and power amplifier (English: Power Amplifier, abbreviation: PA)；
DPD module, for inputting second digital signal, DPD processing is carried out to second digital signal, obtains the 4th digital signal, and export the 4th digital signal to the DAC；
The DAC carries out digital-to-analogue conversion to the 4th digital signal for inputting the 4th digital signal, obtains the second analog signal, and export second analog signal to the frequency mixer；
The frequency mixer is modulated processing to second analog signal for inputting second analog signal, obtains third analog signal, and export the third analog signal to the PA；
The PA carries out power amplification processing to the third analog signal, obtains first analog signal, emit first analog signal by antenna for inputting the third analog signal.
Optionally, the DPD module includes DPD unit and analog-digital converter (English: Analog-to-Digital Converter, abbreviation: ADC)；
The ADC carries out analog-to-digital conversion process to the coupled signal of first analog signal for inputting the coupled signal of first analog signal, obtains the 5th digital signal, and export the 5th digital signal to the DPD unit；
The DPD unit carries out DPD processing to second digital signal according to the 5th digital signal, obtains the 4th digital signal for inputting second digital signal and the 5th digital signal.
Optionally, the ODU output control module further include: QMC module；The QMC module is connect with the DPD module, and is connect with the DAC；
The QMC module carries out QMC processing to the 4th digital signal, obtains the 6th digital signal, Xiang Suoshu DAC exports the 6th digital signal for inputting the 4th digital signal of the DPD module output；
The DAC, is specifically used for inputting the 6th digital signal, carries out digital-to-analogue conversion to the 6th digital signal, obtains the second analog signal, and export second analog signal to the frequency mixer.
Optionally, the ODU output control module further include: automatic gain amplifier；The automatic gain amplifier is connect with the frequency mixer, and is connect with the PA；
The automatic gain amplifier carries out automatic gain enhanced processing to the third analog signal for inputting the third analog signal, obtains the 4th analog signal, and Xiang Suoshu PA exports the 4th mould Quasi- signal；
The PA, is specifically used for inputting the 4th analog signal, carries out power amplification processing to the 4th analog signal, obtains the third analog signal.
Optionally, first digital signal interface is attached with second digital signal interface by plug-in card or blade mode.
Second aspect, the embodiment of the present invention provide a kind of microwave telecommunication devices, comprising: IDU and ODU；
The IDU includes: decoder and the first digital signal interface；
The ODU includes: the second digital signal interface and ODU input control module；First digital signal interface is connect with second digital signal interface；
The ODU input control module, for inputting received first analog signal of antenna equipment, low noise amplification, modulation, analog-to-digital conversion and filtering extraction processing are carried out to first analog signal, the first digital signal is obtained, and first digital signal is exported to the decoder by second digital signal interface and first digital signal interface；
The decoder carries out decoding processing to first digital signal, obtains received data for inputting first digital signal by second digital signal interface and the first digital signal mouth.
Optionally, the IDU further include: N number of decoder；The ODU further include: N number of ODU input control module；The N is the integer more than or equal to 1.
Optionally, second digital signal interface, for inputting first digital signal of the N+1 ODU input control module output, framing and scrambling code processing are carried out according to the default frame format for the digital signal transmitted between first digital signal interface and second digital signal interface first digital signal described in the road N+1, the second digital signal is obtained, the first digital signal interface of Xiang Suoshu exports second digital signal；
First digital signal interface, for inputting second digital signal, and descrambling code and frame decoding processing are carried out to second digital signal according to the default frame format, first digital signal of the road N+1 is obtained, Xiang Suoshu N+1 decoder exports first digital signal of the road N+1 respectively.
Optionally, the default frame format: frame head, frame overhead, clock information, N+1 railway digital signal.
Optionally, the ODU input control module includes: low-noise amplifier (English: Low Noise Amplifier, abbreviation: LNA), frequency mixer, ADC, AAF module；
The LNA carries out low noise amplification processing to first analog signal, obtains the second analog signal for inputting received first analog signal of antenna equipment；
The frequency mixer is modulated processing to second analog signal for inputting second analog signal, obtains third analog signal, and export the third analog signal to the ADC；
The ADC carries out analog-to-digital conversion process to the third analog signal for inputting the third analog signal, obtains third digital signal, and export the third digital signal to the AAF module；
The AAF module, for inputting the third digital signal, and filtering extraction processing is carried out to the third digital signal, first digital signal is obtained, and first digital signal is exported to the corresponding decoder by second digital signal interface and first digital signal interface.
Optionally, the ODU input control module further include: QMC module, the QMC module are connect with the ADC, and are connect with the AAF module；
The QMC module carries out QMC processing to the third digital signal for inputting the third digital signal, obtains the 4th digital signal, and export the 4th digital signal to the AAF module；
The AAF module, specifically for inputting the 4th digital signal, filtering extraction processing is carried out to the 4th digital signal, first digital signal is obtained, and first digital signal is exported to the corresponding decoder by second digital signal interface and first digital signal interface.
Optionally, the ODU input control module further include: automatic gain amplifier, the automatic gain amplifier are connect with the frequency mixer, and are connect with the LNA；
The automatic gain amplifier carries out automatic gain enhanced processing to second analog signal for inputting second analog signal, obtains the 4th analog signal, and Xiang Suoshu frequency mixer exports the 4th analog signal；
The frequency mixer is specifically used for inputting the 4th analog signal, is modulated processing to the 4th analog signal, obtains the third analog signal, and export the third analog signal.
Optionally, first digital signal interface is attached with second digital signal interface by plug-in card or blade mode.
The third aspect, the embodiment of the present invention provide a kind of signal processing method, comprising:
IDU is encoded to sent data, obtains the first digital signal；
The IDU carries out variable Rate interpolation processing to first digital signal, obtains the second digital signal；
The IDU exports second digital signal to the ODU.
Optionally, further includes: the data IDU to be sent to the road N encode respectively, obtain the first digital signal described in the road N；The N is the integer more than or equal to 1；
The IDU carries out variable Rate interpolation processing to first digital signal of the road N respectively, obtains the second digital signal of the road N；
The IDU exports second digital signal of the road N to the ODU.
Optionally, the IDU exports the second digital signal described in the road N+1 to the ODU, comprising:
The IDU carries out framing to second digital signal of the road N+1 according to default frame format and scrambling is handled, and obtains third digital signal；
The IDU exports the third digital signal to the ODU.
Optionally, the default frame format: frame head, frame overhead, clock information, N+1 railway digital signal.
Fourth aspect, the embodiment of the present invention provide a kind of signal processing method, comprising:
ODU inputs the second digital signal of IDU output；
The ODU carries out DPD, digital-to-analogue conversion, modulation and power amplification to second digital signal and handles, and obtains the first analog signal；
The ODU emits first analog signal by antenna equipment；Wherein, second digital signal belongs to baseband signal, and first analog signal belongs to microwave signal.
Optionally, further includes: the ODU inputs the second digital signal of the road N of the IDU output；N is the integer more than or equal to 1；
The ODU carries out DPD, digital-to-analogue conversion, modulation and power amplification to second digital signal of the road N respectively and handles, and obtains the first analog signal of the road N；
The ODU emits first analog signal of the road N by antenna equipment.
Optionally, the second digital signal described in the road N+1 of the ODU input IDU output, comprising:
The ODU inputs the third digital signal of the IDU output；
The ODU carries out descrambling code to the third digital signal and frame decoding is handled, obtain second digital signal of the road N+1 according to default frame format.
Optionally, the default frame format: frame head, frame overhead, clock information, N+1 railway digital signal.
Optionally, the ODU carries out DPD processing to second digital signal, comprising:
The ODU obtains the coupled signal of first analog signal；
The ODU carries out DPD processing to second digital signal according to the coupled signal of first analog signal.
Optionally, the ODU carries out DPD, digital-to-analogue conversion, modulation and power amplification processing to second digital signal, obtains the first analog signal, comprising:
The ODU carries out DPD, QMC, digital-to-analogue conversion, modulation and power amplification to second digital signal and handles, and obtains first analog signal.
Optionally, the ODU carries out digital predistortion compensation DPD, digital-to-analogue conversion, modulation and power amplification processing to second digital signal, obtains the first analog signal, comprising:
The ODU carries out DPD, digital-to-analogue conversion, modulation, automatic gain amplification and power amplification to second digital signal and handles, and obtains first analog signal.
5th aspect, the embodiment of the present invention provide a kind of signal processing method, comprising:
ODU inputs received first analog signal of antenna equipment；
The ODU carries out low noise amplification, modulation, analog-to-digital conversion and filtering extraction to first analog signal and handles, and obtains the first digital signal；
The ODU exports first digital signal to IDU.
Optionally, further includes: the ODU inputs received the first analog signal of the road N of antenna equipment；The N is the integer more than or equal to 1；
The ODU carries out low noise amplification, modulation, analog-to-digital conversion and filtering extraction to first analog signal of the road N respectively and handles, and obtains the first digital signal of the road N；
The ODU exports first digital signal of the road N to the IDU.
Optionally, the ODU exports the first digital signal described in the road N+1 to IDU, comprising:
The ODU carries out framing to first digital signal of the road N+1 according to default frame format and scrambling code is handled, and obtains the second digital signal；
The ODU exports second digital signal to the IDU.
Optionally, the default frame format: frame head, frame overhead, clock information, N+1 railway digital signal.
Optionally, the ODU carries out low noise amplification, modulation, analog-to-digital conversion and filtering extraction processing to first analog signal, obtains the first digital signal, comprising:
The ODU carries out low noise amplification, modulation, analog-to-digital conversion, QMC and filtering extraction to first analog signal and handles, and obtains first digital signal.
Optionally, the ODU carries out low noise amplification, modulation, analog-to-digital conversion and filtering extraction processing to first analog signal, obtains the first digital signal, comprising:
The ODU carries out low noise amplification, automatic gain amplification, modulation, analog-to-digital conversion and filtering extraction to first analog signal and handles, and obtains first digital signal.
6th aspect, the embodiment of the present invention provide a kind of signal processing method, comprising:
IDU inputs the first digital signal of ODU output；
The IDU carries out decoding processing to first digital signal, obtains received data.
Optionally, further includes: the IDU inputs the first digital signal of the road N of the ODU output；N is the integer more than or equal to 1；
The IDU carries out decoding processing to first digital signal of the road N respectively, obtains the received data in the road N.
Optionally, the first digital signal of the road N+1 of the IDU input ODU output, comprising:
The IDU inputs the second digital signal of the ODU output；
The IDU carries out descrambling code to second digital signal according to default frame format and frame decoding is handled, and obtains first digital signal of the road N+1.
Optionally, the default frame format: frame head, frame overhead, clock information, N+1 railway digital signal.
Signal processing method microwave telecommunication devices provided in an embodiment of the present invention, by realizing digital data transmission between IDU and ODU, the reduction so that analog signal decays in transmission process, and then reduces and need the amplification carried out to analog signal to offset attenuation losses before transmission, therefore reduce costs.And, the DPD treatment process of the present embodiment can be executed by ODU, ODU is to carry out DPD processing to digital signal according to the signal after progress power amplifier, and it carries out the signal direct-coupling after power amplifier and feeds back into ODU, realize closed loop detection in inside, transmission path shortens, and response speed faster, and then improves DPD treatment effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, drawings that need to be used in the embodiment or the prior art description will simply be introduced one by one below, apparently, drawings in the following description are some embodiments of the invention, for those of ordinary skill in the art, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structure chart for the microwave telecommunication devices that the embodiment of the present invention one provides；
Fig. 2 is the structure chart of microwave telecommunication devices provided by Embodiment 2 of the present invention；
Fig. 3 is the structure chart for the microwave telecommunication devices that the embodiment of the present invention three provides；
Fig. 4 is a kind of structure chart of ODU output control module provided in an embodiment of the present invention；
Fig. 5 is a kind of structure chart of ODU output control module provided in an embodiment of the present invention；
Fig. 6 is a kind of structure chart of ODU output control module provided in an embodiment of the present invention；
Fig. 7 is a kind of structure chart of ODU output control module provided in an embodiment of the present invention；
Fig. 8 is the structure chart for the microwave telecommunication devices that the embodiment of the present invention four provides；
Fig. 9 is the structure chart for the microwave telecommunication devices that the embodiment of the present invention five provides；
Figure 10 is a kind of structure chart of ODU input control module provided in an embodiment of the present invention；
Figure 11 is a kind of structure chart of ODU input control module provided in an embodiment of the present invention；
Figure 12 is a kind of structure chart of ODU input control module provided in an embodiment of the present invention；
Figure 13 is the structure chart for the microwave telecommunication devices that the embodiment of the present invention six provides；
Figure 14 is the flow chart for the signal processing method that the embodiment of the present invention one provides；
Figure 15 is the flow chart of signal processing method provided by Embodiment 2 of the present invention；
Figure 16 is the flow chart for the signal processing method that the embodiment of the present invention three provides；
Figure 17 is the flow chart for the signal processing method that the embodiment of the present invention four provides；
Figure 18 is the flow chart for the signal processing method that the embodiment of the present invention five provides；
Figure 19 is the flow chart for the signal processing method that the embodiment of the present invention six provides.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, following will be combined with the drawings in the embodiments of the present invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 is the structure chart for the microwave telecommunication devices that the embodiment of the present invention one provides, as shown in Figure 1, the microwave telecommunication devices of the present embodiment may include: IDU100 and ODU200.Wherein, IDU100 includes: encoder 110, interpolating module 120 and the first digital signal interface 130；ODU200 includes: the second digital signal interface 210 and ODU output control module 220, wherein the first digital signal interface 130 is connect with the second digital signal interface 210.
Wherein, encoder 110 obtain the first digital signal, and export the first digital signal to interpolating module 120 for being encoded to sent data.
Interpolating module 120, the first digital signal exported for input coding device 110, speed change degree interpolation processing is carried out to the first digital signal, obtains the second digital signal, the second digital signal is exported to ODU output control module by the first digital signal interface 130 and the second digital signal interface 210.
ODU output control module 220, for inputting the second digital signal by the first digital signal interface 130 and the second digital signal interface 210, and it carries out DPD, digital-to-analogue conversion, modulation and power amplification to the second digital signal to handle, the first analog signal is obtained, the first analog signal is emitted by antenna equipment.Wherein, the second digital signal belongs to baseband signal, and the first analog signal belongs to microwave signal.
In the present embodiment, encoder 110 is encoded to sent data, obtain the first digital signal, then the first digital signal that encoder 11 is obtained to the output of interpolating module 120, interpolating module 120 inputs the first digital signal, variable Rate interpolation processing is carried out to the first digital signal, obtain the second digital signal, since the first digital signal interface 130 in IDU100 is connect with the second digital signal interface 210 in ODU200, therefore, interpolating module 120 exports the second digital signal to ODU output control module 220 by the first digital signal interface 130 and the second digital signal interface 210；ODU output control module 220 inputs the second digital signal by the first digital signal interface 130 and the second digital signal interface 210, and DPD, digital-to-analogue conversion, modulation and power are carried out to the first digital signal and are placed on processing, obtain the first analog signal, and the first analog signal is exported to antenna equipment, so that antenna equipment emits the first analog signal.In the present embodiment, the digital data transmission between IDU100 and ODU200 may be implemented by the first digital signal interface 130 and the second digital signal interface 210, the reduction so that analog signal decays in transmission process, and then reduces and need the amplification carried out to analog signal to offset attenuation losses before transmission, therefore reduce costs.And, the DPD treatment process of the present embodiment can be executed by the ODU output control module 220 in ODU200, ODU output control module 220 is to carry out DPD processing to digital signal according to the signal after progress power amplifier, and it carries out the signal direct-coupling after power amplifier and feeds back into ODU output control module 220, realize closed loop detection in inside, transmission path shortens, and response speed faster, and then improves DPD treatment effect.
Fig. 2 is the structure chart of microwave telecommunication devices provided by Embodiment 2 of the present invention, as shown in Figure 2, on the basis of the microwave telecommunication devices of the present embodiment embodiment shown in Fig. 1, above-mentioned IDU100 can also include: N number of encoder 110, N number of encoder 110 is connect with interpolating module 120, and N is the integer more than or equal to 1；Above-mentioned ODU200 can also include: N number of ODU output control module 220；
Interpolating module 120, it is also used to input the first digital signal that N number of encoder 110 exports, variable Rate interpolation processing is carried out to the first digital signal of the road N, the second digital signal of the road N is obtained, the second digital signal of the road N is exported to N number of ODU output control module 220 by the first digital signal interface and the second digital signal interface.
In the present embodiment, each encoder 110 encodes its corresponding data to be sent, obtains First digital signal, then the first digital signal that N+1 encoder 11 is obtained to the output of interpolating module 120, interpolating module 120 inputs the first digital signal of the road N+1, the first digital signal of the road Dui Zhe N+1 carries out variable Rate interpolation processing, obtain the second digital signal of the road N+1, since the first digital signal interface 130 in IDU100 is connect with the second digital signal interface 210 in ODU200, therefore, interpolating module 120 exports the second digital signal of the road N+1 to N+1 ODU output control module 220 by the first digital signal interface 130 and the second digital signal interface 210 respectively；N+1 ODU output control module 220 inputs the second corresponding digital signal (such as the 1st ODU output control module input is the second digital signal that interpolating module carries out interpolation processing acquisition to the first digital signal of the 1st encoder output) by the first digital signal interface 130 and the second digital signal interface 210 respectively, and DPD, digital-to-analogue conversion, modulation and power are carried out to the first digital signal and are placed on processing, obtain the first analog signal, and the first analog signal is exported to antenna equipment, so that antenna equipment emits the first analog signal.The data to be sent of each encoder coding can be different.
In the present embodiment, the digital data transmission between IDU100 and ODU200 may be implemented by the first digital signal interface 130 and the second digital signal interface 210, the reduction so that analog signal decays in transmission process, and then reduces and need the amplification carried out to analog signal to offset attenuation losses before transmission, therefore reduce costs.And, the DPD treatment process of the present embodiment can be executed by the ODU output control module 220 in ODU200, ODU output control module 220 is to carry out DPD processing to digital signal according to the signal after progress power amplifier, and it carries out the signal direct-coupling after power amplifier and feeds back into ODU output control module 220, realize closed loop detection in inside, transmission path shortens, and response speed faster, and then improves DPD treatment effect.
Optionally, the first digital signal interface 130 carries out framing to the second digital signal of the road N+1 according to default frame format and scrambling code is handled, obtain third digital signal for inputting the second digital signal of the road N+1, exports third digital signal to the second digital signal interface；
Second digital signal interface 210, for inputting third digital signal, and descrambling code and frame decoding processing are carried out to third digital signal according to default frame format, the second digital signal of the road N+1 is obtained, exports the second digital signal of the road N+1 respectively to N+1 ODU output control module.
In the present embodiment, first digital signal interface 130 inputs the second digital signal of the road N+1, framing is carried out to the second digital signal of the road N+1 according to default frame format and scrambling code is handled, obtain third digital signal all the way, first digital signal interface 130 exports the third digital signal to the second digital signal interface 210, second digital signal interface 210 inputs the third digital signal of the first digital signal interface 130 output, and Descrambling code is carried out to third digital signal according to default frame format and frame decoding is handled, obtain the second digital signal of the road N+1, then the second digital signal of the road N+1 is exported respectively to N+1 ODU output control module 220, such as: the 1st the second digital signal of tunnel is exported to the 1st ODU output control module 220, the 2nd the second digital signal of tunnel is exported to the 2nd ODU output control module 220, and so on.After N+1 ODU output control module 220 inputs corresponding second digital signal, second digital signal of 220 pairs of each ODU output control module inputs carries out DPD, digital-to-analogue conversion, modulation and power amplification processing, the first analog signal is obtained, the first analog signal is emitted by antenna equipment.
The multi-path digital signal for needing to transmit between IDU and ODU in the present embodiment can be by being transmitted between the first digital signal interface and the second digital signal interface by digital signal all the way, therefore a cable is only needed to connect between the first digital signal interface and the second digital signal interface, the dosage of cable, save the cost can be saved.
Fig. 3 is the structure chart for the microwave telecommunication devices that the embodiment of the present invention three provides, as shown in Figure 3, on the basis of the microwave telecommunication devices of the present embodiment embodiment shown in Fig. 1, above-mentioned IDU100 can also include: N number of encoder 110 and N number of interpolating module 120, and N number of encoder 110 is connect with N number of interpolating module 120 respectively；ODU200 can also include: N number of ODU output control module 220；N is the integer more than or equal to 1.
In the present embodiment, each encoder 110 encodes its corresponding data to be sent, obtains the first digital signal, the first digital signal that then N+1 encoder 11 is obtained to the N+1 output of interpolating module 120 respectively；Each interpolating module 120 inputs the first digital signal all the way, the first digital signal of the road Bing Duizhe carries out variable Rate interpolation processing, obtain the second digital signal, since the first digital signal interface 130 in IDU100 is connect with the second digital signal interface 210 in ODU200, therefore, interpolating module 120 exports the second digital signal to corresponding ODU output control module 220 by the first digital signal interface 130 and the second digital signal interface 210；N+1 ODU output control module 220 inputs the second corresponding digital signal (such as the 1st ODU output control module input is the second digital signal that the 1st interpolating module carries out interpolation processing acquisition to the first digital signal of the 1st encoder output) by the first digital signal interface 130 and the second digital signal interface 210 respectively, and DPD, digital-to-analogue conversion, modulation and power are carried out to the first digital signal and are placed on processing, obtain the first analog signal, and the first analog signal is exported to antenna equipment, so that antenna equipment emits the first analog signal.The data to be sent of each encoder coding can be different.
It, can be with by the first digital signal interface 130 and the second digital signal interface 210 in the present embodiment It realizes the digital data transmission between IDU100 and ODU200, the reduction so that analog signal decays in transmission process, and then reduces and need the amplification carried out to analog signal to offset attenuation losses before transmission, therefore reduce costs.And, the DPD treatment process of the present embodiment can be executed by the ODU output control module 220 in ODU200, ODU output control module 220 is to carry out DPD processing to digital signal according to the signal after progress power amplifier, and it carries out the signal direct-coupling after power amplifier and feeds back into ODU output control module 220, realize closed loop detection in inside, transmission path shortens, and response speed faster, and then improves DPD treatment effect.
Optionally, the first digital signal interface 130 carries out framing to the second digital signal of the road N+1 according to default frame format and scrambling code is handled, obtain third digital signal for inputting the second digital signal of the road N+1, exports third digital signal to the second digital signal interface；
Second digital signal interface 210, for inputting third digital signal, and descrambling code and frame decoding processing are carried out to third digital signal according to default frame format, the second digital signal of the road N+1 is obtained, exports the second digital signal of the road N+1 respectively to N+1 ODU output control module.
The multi-path digital signal for needing to transmit between IDU and ODU in the present embodiment can be by being transmitted between the first digital signal interface and the second digital signal interface by digital signal all the way, therefore a cable is only needed to connect between the first digital signal interface and the second digital signal interface, the dosage of cable, save the cost can be saved.
On the basis of the various embodiments described above, optionally, frame format is preset are as follows: frame head, digital signal interface frame overhead, clock information, N+1 railway digital signal.Wherein, frame head is used for digital signal interface frame framing；Digital signal interface frame overhead is used for microwave channel management；Clock information is for mutually passing clock information；Each railway digital signal: different according to microwave air interface transmission bandwidth, flexible configuration transmits N+1 railway digital signal；Sampling point data exchange and the protection between different digital signal path can also be carried out simultaneously.Therefore, the frame format of third digital signal are as follows: frame head, digital signal interface frame overhead, clock information, the 1st the second digital signal of tunnel, the 2nd the second digital signal of the tunnel road the second digital signal ... N+1, N are the integer more than or equal to 1.
In addition, the first analog signal of the road N+1 can be emitted by same antenna equipment in above-described embodiment, can also be emitted by different antenna equipments.
Fig. 4 is a kind of structure chart of ODU output control module provided in an embodiment of the present invention, as shown in Figure 4, on the basis of the microwave telecommunication devices of the present embodiment embodiment shown in Fig. 1-Fig. 3 is any, a kind of optional implementation of above-mentioned ODU output control module 220 is ODU output control module 220 include: DPD module 221, DAC222, frequency mixer 223 and PA224.
Wherein, DPD module 221, for input the second digital signal, to the second digital signal carry out DPD processing, obtain the 4th digital signal, and to DAC222 export the 4th digital signal.
DAC222 carries out digital-to-analogue conversion to the 4th digital signal for inputting the 4th digital signal, obtains the second analog signal, and export the second analog signal to frequency mixer 223；
Frequency mixer 223 is modulated processing to the second analog signal for inputting the second analog signal, obtains third analog signal, and export third analog signal to PA224；
PA224 carries out power amplification processing to third analog signal, obtains the first analog signal for inputting third analog signal, emits the first analog signal by antenna.
In the present embodiment, DPD module 221 inputs the second digital signal by the second digital signal interface 210, carries out DPD processing to the second digital signal, obtains the 4th digital signal, and export the 4th digital signal to DAC222；DAC222 carries out digital-to-analogue conversion to the 4th digital signal, obtains the second analog signal, exports the second analog signal to frequency mixer 223；Frequency mixer 223 is modulated processing to the second analog signal, obtains third analog signal, exports third analog signal to PA224；PA224 carries out power amplification processing to third analog signal, obtains the first analog signal, then penetrates the first analog signal by antenna transmission.
In the present embodiment, the digital data transmission between IDU100 and ODU200 may be implemented by the first digital signal interface 130 and the second digital signal interface 210, the DPD module 221 of the present embodiment may be provided in ODU200, DPD module 221 is to carry out DPD processing to the second digital signal according to the signal after progress power amplifier, and the signal direct-coupling after PA224 progress power amplifier is fed back to DPD module 221, realize closed loop detection in inside, transmission path shortens, response speed faster, and then improves DPD treatment effect.
Fig. 5 is a kind of structure chart of ODU output control module provided in an embodiment of the present invention, as shown in Figure 5, on the basis of the ODU output control module embodiment shown in Fig. 4 of the present embodiment, a kind of optional implementation of above-mentioned DPD module 221 is that DPD module 221 includes: DPD unit 221A and ADC221B；
ADC221B carries out analog-to-digital conversion process to the coupled signal of the first analog signal for inputting the coupled signal of the first analog signal, obtains the 5th digital signal, and export the 5th digital signal to DPD unit 221A；DPD unit 221A carries out DPD processing to the second digital signal according to the 5th digital signal, obtains the 4th digital signal for inputting the second digital signal and the 5th digital signal.
In the present embodiment, ADC221B inputs the coupled signal of the first analog signal, and believes the first simulation Number coupled signal carry out analog-to-digital conversion, obtain the 5th digital signal, then to DPD unit 221A export the 5th digital signal；DPD unit 221A inputs the second digital signal of the second digital signal interface 210 output and the 5th digital signal of ADC221B output, carries out DPD processing to the second digital signal according to the 5th digital signal, obtains the 4th digital signal.
In the present embodiment, the signal direct-coupling after progress power amplifier is fed back into DPD module 221, and DPD module 221 is arranged in ODU200, therefore internal achievable closed loop detects, and transmission path shortens, and response speed faster, and then improves DPD treatment effect.
Fig. 6 is a kind of structure chart of ODU output control module provided in an embodiment of the present invention, as shown in fig. 6, the ODU output control module of the present embodiment is on the basis of Fig. 4 or embodiment shown in fig. 5, above-mentioned ODU output control module 220 further include: QMC module 225；QMC module 225 is connect with DPD module 221, and is connect with DAC222；
QMC module 225 carries out QMC processing to the 4th digital signal, obtains the 6th digital signal for inputting the 4th digital signal of the output of DPD module 221, exports the 6th digital signal to DAC222；
DAC222, is specifically used for the 6th digital signal of input, carries out digital-to-analogue conversion to the 6th digital signal, obtains the second analog signal, and export the second analog signal to frequency mixer 223.
In the present embodiment, DPD module 221 inputs the second digital signal by the second digital signal interface 210, carries out DPD processing to the second digital signal, obtains the 4th digital signal, and export the 4th digital signal to QMC module 225；QMC module 225 carries out QMC processing to the 4th digital signal, obtains the 6th digital signal, and export the 6th digital signal to DAC222；DAC222 carries out digital-to-analogue conversion to the 6th digital signal, obtains the second analog signal, exports the second analog signal to frequency mixer 223；Frequency mixer 223 is modulated processing to the second analog signal, obtains third analog signal, exports third analog signal to PA224；PA224 carries out power amplification processing to third analog signal, obtains the first analog signal, then penetrates the first analog signal by antenna transmission.
Optionally, the 6th digital signal includes I railway digital signal and Q railway digital signal, and correspondingly, the second analog signal includes the road I analog signal and the road Q analog signal.QMC module 225 in the present embodiment digital signal will be divided into two ways of digital signals and export into DAC222 all the way, can reduce the requirement to DAC.
Fig. 7 is a kind of structure chart of ODU output control module provided in an embodiment of the present invention, as shown in fig. 7, the basis of embodiment shown in the ODU output control module of the present embodiment is any in Fig. 4-Fig. 6 On, above-mentioned ODU output control module 220 further include: automatic gain amplifier 226；Automatic gain amplifier 226 is connect with frequency mixer 223, and is connect with PA224；
Automatic gain amplifier 226 carries out automatic gain enhanced processing to third analog signal, obtains the 4th analog signal for inputting third analog signal, exports the 4th analog signal to PA224；
PA224, is specifically used for the 4th analog signal of input, carries out power amplification processing to the 4th analog signal, obtains the first analog signal.
In the present embodiment, DPD module 221 inputs the second digital signal by the second digital signal interface 210, carries out DPD processing to the second digital signal, obtains the 4th digital signal, and export the 4th digital signal to QMC module 225；QMC module 225 carries out QMC processing to the 4th digital signal, obtains the 6th digital signal, and export the 6th digital signal to DAC222；DAC222 carries out digital-to-analogue conversion to the 6th digital signal, obtains the second analog signal, exports the second analog signal to frequency mixer 223；Frequency mixer 223 is modulated processing to the second analog signal, obtains third analog signal, exports third analog signal to automatic gain amplifier 226；Automatic gain amplifier 226 carries out automatic gain enhanced processing to third analog signal, obtains the 4th analog signal, and export the 4th analog signal to PA224；PA224 carries out power amplification processing to the 4th analog signal, obtains the first analog signal, then penetrates the first analog signal by antenna transmission.It should be noted that automatic gain amplifier carries out enhanced processing appropriate to signal to according to environmental condition, this enhanced processing is adjustable, and PA is fixed to the enhanced processing of signal.
Due in the prior art, the signal transmitted from IDU to ODU is modulated analog signal, it can only be transmitted by immediate frequency cable, because the characteristic of this cable can only pass several hundred MHz (range of linearity of usual 700M or so, it is distorted after being more than serious), so modulates baseband signals to several hundred million (usual 350MHz transmission/140MHz is received) ODU can only be connected to, it is necessary to after single-conversion, carry out double conversion again to ODU to microwave radio signal.IF signal can be by the processing such as multistage amplification, filtering, the entire chain index of Index Influence.Therefore, the present invention is in order to solve this problem, in the present embodiment, what is transmitted between IDU100 and ODU200 is digital signal, and baseband digital signal is directly modulated to radiofrequency signal (7/8G or more) again by ODU200 after DAC is converted, and needs not move through multistage amplification, filtering processing, it is not coupled with radio frequency link index, realizes single-conversion and enhanced processing, simplify the radio frequency link of ODU200.
Fig. 8 is the structure chart for the microwave telecommunication devices that the embodiment of the present invention four provides, as shown in figure 8, the microwave telecommunication devices of the present embodiment may include: IDU100 and ODU200；Wherein, IDU100 can be with Including the first digital signal interface 130 and decoder 140；ODU200 may include: the second digital signal interface 210 and ODU input control module 230；
ODU input control module 230, for inputting received first analog signal of antenna equipment, low noise amplification, modulation, analog-to-digital conversion and filtering extraction processing are carried out to the first analog signal, the first digital signal is obtained, and the first digital signal is exported to corresponding decoder 140 by the second digital signal interface 210 and the first digital signal interface 130；
Decoder 140 carries out decoding processing to the first digital signal, obtains received data for inputting the first digital signal by the first digital signal interface 130 and the second digital signal interface 210.
In the present embodiment, the first analog signal received to antenna equipment of ODU input control module 230 carries out low noise amplification, modulation, analog-to-digital conversion and filtering extraction processing, obtain the first digital signal, first digital signal belongs to baseband signal, then the first digital signal is exported to decoder 140 by the second digital signal interface 210 and the first digital signal interface 130, decoder 140 carries out decoding processing to the first digital signal, obtains received data.In the present embodiment, the digital data transmission between IDU100 and ODU200 may be implemented by the first digital signal interface 130 and the second digital signal interface 210, the reduction so that analog signal decays in transmission process, and then reduces and need the amplification carried out to analog signal to offset attenuation losses, therefore reduce costs.
Fig. 9 is the structure chart of microwave telecommunication devices that the embodiment of the present invention five provides, as shown in figure 9, above-mentioned IDU100 can also include: N number of decoder 140 on the basis of the microwave telecommunication devices of the present embodiment embodiment shown in Fig. 8；ODU200 can also include: N number of ODU input control module 230；N is the integer more than or equal to 1.
In the present embodiment, each the first analog signal received to antenna equipment of ODU input control module 230 carries out low noise amplification, modulation, analog-to-digital conversion and filtering extraction processing, obtain the first digital signal, first digital signal belongs to baseband signal, then the 7th digital signal is exported to corresponding decoder 140 (such as the 1st ODU input control module is corresponding with the 1st decoder) by the second digital signal interface 210 and the first digital signal interface 130, decoder 140 carries out decoding processing to the first digital signal, obtains received data.In the present embodiment, the digital data transmission between IDU100 and ODU200 may be implemented by the first digital signal interface 130 and the second digital signal interface 210, the reduction so that analog signal decays in transmission process, and then reduces and need the amplification carried out to analog signal to offset attenuation losses, therefore reduce costs.
Optionally, the second digital signal interface 210, for inputting N+1 ODU input control module First digital signal of 230 outputs, framing is carried out to the first digital signal of the road N+1 according to the default frame format for the digital signal transmitted between the first digital signal interface 130 and the second digital signal interface 210 and scrambling code is handled, the second digital signal is obtained, exports the second digital signal to the first digital signal interface 130；
First digital signal interface 130 carries out descrambling code and frame decoding processing to the second digital signal for inputting the second digital signal, and according to default frame format, obtains the first digital signal of the road N+1, export the 7th digital signal of the road N+1 respectively to N+1 decoder.
In the present embodiment, after each ODU input control module 230 obtains the 7th digital signal, the first digital signal that N+1 ODU input control module 230 is obtained to the output of the second digital signal interface 210, second digital signal interface 210 inputs the first digital signal of the road N+1, framing and scrambling code processing are carried out according to preset format Dui Zhe N+1 the first digital signal of road, obtain the second digital signal all the way, second digital signal interface 210 exports the second digital signal to the first digital signal interface 130, first digital signal interface 130 inputs the second digital signal of the second digital signal interface 210 output, and descrambling code and frame decoding processing are carried out to the second digital signal according to default frame format, obtain the first digital signal of the road N+1, then it is exported respectively to N+1 decoder 140 The first digital signal of the road N+1, such as: the 1st the first digital signal of tunnel is exported to the 1st decoder 140, exports the 2nd the first digital signal of tunnel to the 2nd decoder 140, and so on.After N+1 decoder 140 inputs corresponding first digital signal, the first digital signal of 140 pairs of each decoder inputs carries out decoding processing, obtains received data.
Optionally, frame format is preset are as follows: frame head, digital signal interface frame overhead, clock information, N+1 railway digital signal, N are the integer more than or equal to 1.Wherein, frame head is used for digital signal interface frame framing；Digital signal interface frame overhead is used for microwave channel management；Clock information is for mutually passing clock information；Each railway digital signal: different according to microwave air interface transmission bandwidth, flexible configuration transmits N+1 railway digital signal；Sampling point data exchange and the protection between different digital signal path can also be carried out simultaneously.Therefore, the frame format of the second digital signal in the present embodiment are as follows: frame head, digital signal interface frame overhead, clock information, the 1st the first digital signal of tunnel, the 2nd the first digital signal of the tunnel road the first digital signal ... N+1.
The present embodiment, the multi-path digital signal for needing to transmit between IDU and ODU can be by being transmitted between the first digital signal interface and the second digital signal interface by digital signal all the way, therefore a cable is only needed to connect between the first digital signal interface and the second digital signal interface, the dosage of cable, save the cost can be saved.
In addition, above-mentioned the first analog signal of the road N+1 can be received by same antenna equipment, it is also possible to receive by different antenna equipments.
Figure 10 is a kind of structure chart of ODU input control module provided in an embodiment of the present invention, as shown in Figure 10, the present embodiment is on the basis of Fig. 8 or embodiment shown in Fig. 9, a kind of optional implementation of above-mentioned ODU input control module 230 is that ODU input control module 230 includes: LNA231, frequency mixer 232, ADC233 and AAF module 234；
LNA231 carries out low noise amplification processing to the first analog signal, obtains the second analog signal for inputting received first analog signal of antenna equipment；
Frequency mixer 232 is modulated processing to the second analog signal for inputting the second analog signal, obtains third analog signal, and export third analog signal to ADC233；Wherein, the second analog signal category day microwave signal, third analog signal belong to baseband signal.
ADC233 carries out analog-to-digital conversion process to third analog signal for inputting third analog signal, obtains third digital signal, and export third digital signal to AAF module 234；
AAF module 234 carries out filtering extraction processing for inputting third digital signal, and to third digital signal, obtains the first digital signal, and go out the first digital signal to corresponding decoder 140 by the second digital signal interface 210 and the first digital signal interface 130.
In the present embodiment, LNA231 inputs received first analog signal of antenna equipment, low noise amplification processing is carried out to the first analog signal, the second analog signal is obtained, and exports the second analog signal to frequency mixer 232, frequency mixer 232 is modulated processing to the second analog signal, obtain third analog signal, third analog signal belongs to baseband signal, and the second analog signal belongs to microwave signal, then exports third analog signal to ADC233；ADC233 carries out analog-to-digital conversion to third analog signal, obtains third digital signal, and export third digital signal to AAF module 234；AAF module 234 carries out filtering extraction processing to third digital signal, obtains the first above-mentioned digital signal, is then output to the second digital signal interface 210.
Figure 11 is a kind of structure chart of ODU input control module provided in an embodiment of the present invention, as shown in figure 11, the present embodiment is on the basis of embodiment shown in Fig. 10, above-mentioned ODU input control module 230 can also include: QMC module 235, QMC module 235 is connect with ADC233, and is connect with AAF module 234；
QMC module 235 carries out QMC processing to third digital signal for inputting third digital signal, obtains the 4th digital signal, and export the 4th digital signal to AAF module 234；
AAF module 234, is specifically used for the 4th digital signal of input, carries out filtering extraction processing to the 4th digital signal, obtains the first digital signal, and pass through the second digital signal interface 210 and the first number letter Number interface 130 exports the first digital signal to corresponding decoder 140.
In the present embodiment, LNA231 inputs received first analog signal of antenna equipment, low noise amplification processing is carried out to the first analog signal, the second analog signal is obtained, and exports the second analog signal to frequency mixer 232, frequency mixer 232 is modulated processing to the second analog signal, obtain third analog signal, third analog signal belongs to baseband signal, and the second analog signal belongs to microwave signal, then exports third analog signal to ADC233；ADC233 carries out analog-to-digital conversion to third analog signal, obtains third digital signal, and export third digital signal to QMC module 235；QMC module 235 carries out QMC processing to third digital signal, obtains the 4th digital signal, and export the 4th digital signal to AAF module 234；AAF module 234 carries out filtering extraction processing to the 4th digital signal, obtains the first above-mentioned digital signal, is then output to the second digital signal interface 210.Optionally, the third digital signal of the present embodiment may include I railway digital signal and Q railway digital signal, and above-mentioned third analog signal may include the road I analog signal and the road Q analog signal.
In the present embodiment, the digital data transmission between IDU100 and ODU200 may be implemented by the first digital signal interface 130 and the second digital signal interface 210, the QMC module 235 of the present embodiment may be provided in ODU200, QMC module 235 carries out the signal of QMC processing without transmitting between ODU200 and IDU100, only in ODU200 internal transmission, therefore the path that signal transmits before carrying out QMC processing shortens compared with prior art, the interference that signal is subject to weakens, also reduce the phase of signal, gain, the disequilibrium of delay etc., improve QMC treatment effect.
Figure 12 is a kind of structure chart of ODU input control module provided in an embodiment of the present invention, as shown in figure 12, on the basis of the present embodiment embodiment shown in Figure 10 or Figure 11, above-mentioned ODU input control module 230 can also include: automatic gain amplifier 236, automatic gain amplifier 236 is connect with frequency mixer 232, and is connect with LNA231；
Automatic gain amplifier 236 carries out automatic gain enhanced processing to the second analog signal, obtains the 4th analog signal for inputting the second analog signal, exports the 4th analog signal to frequency mixer 232；
Frequency mixer 232, is specifically used for the 4th analog signal of input, is modulated processing to the 4th analog signal, obtains third analog signal, and export third analog signal.
In the present embodiment, LNA231 inputs received first analog signal of antenna equipment, carries out low noise amplification processing to the first analog signal, obtains the second analog signal, and export the second analog signal to automatic gain amplifier 236；Automatic gain amplifier 236 carries out automatic gain enhanced processing to the second analog signal, obtains the 4th analog signal, and export the 4th analog signal to frequency mixer 232, frequency mixer 232 is right 4th analog signal is modulated processing, obtains third analog signal, and third analog signal belongs to baseband signal, and the second analog signal belongs to microwave signal, then exports third analog signal to ADC233；ADC233 carries out analog-to-digital conversion to third analog signal, obtains third digital signal, and export third digital signal to QMC module 235；QMC module 235 carries out QMC processing to third digital signal, obtains the 4th digital signal, and export the 4th digital signal to AAF module 234；AAF module 234 carries out filtering extraction processing to the 4th digital signal, obtains the first above-mentioned digital signal, is then output to the second digital signal interface 210.
Figure 13 is the structure chart for the microwave telecommunication devices that the embodiment of the present invention six provides, as shown in figure 13, the microwave telecommunication devices of the present embodiment are on the basis of any of the above-described embodiment, first digital signal interface 130 is attached with the second digital signal interface 210 by plug-in card or blade mode, ODU200 in the present embodiment illustrates only the second digital signal interface 210, IDU illustrates only the first digital signal interface 130, other elements are not shown, and the description of other elements may refer to the record in any of the above-described embodiment.IDU100 is connect with ODU200 by digital signal interface, it is easy to which the Extended ID U on ODU, ODU carry out assembly by plug-in card or blade mode and IDU, so that microwave telecommunication devices become complete outdoor (English: Full Outdoor, abbreviation: FO) equipment.
Figure 14 is the flow chart for the signal processing method that the embodiment of the present invention one provides, and as shown in figure 14, the method for the present embodiment may include:
S101, IDU are encoded to sent data, obtain the first digital signal.
S102, IDU carry out variable Rate interpolation processing to the first digital signal, obtain the second digital signal.
S103, IDU export the second digital signal to ODU；ODU inputs the second digital signal of IDU output.
S104, ODU carry out DPD, digital-to-analogue conversion, modulation and power amplification to the second digital signal and handle, and obtain the first analog signal.
S105, ODU emit the first analog signal by antenna equipment.
Wherein, the second digital signal belongs to baseband signal, and the first analog signal belongs to microwave signal.
The method of the present embodiment can microwave telecommunication devices as shown in Figure 1 execute, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Figure 15 is the flow chart of signal processing method provided by Embodiment 2 of the present invention, as shown in figure 15, The method of the present embodiment may include:
Data S201, IDU to be sent to the road N+1 encode respectively, obtain the first digital signal of the road N+1.
N is the integer more than or equal to 1.
S202, IDU carry out interpolation processing to the first digital signal of the road N+1 respectively, obtain the second digital signal of the road N+1.
S203, IDU export the second digital signal of the road N+1 to ODU；ODU inputs the second digital signal of the road N+1 of IDU output.
S204, ODU carry out DPD, digital-to-analogue conversion, modulation and power amplification to the second digital signal of the road N+1 respectively and handle, and obtain the first analog signal of the road N+1.
S205, ODU emit the first analog signal of the road N+1 by antenna equipment.
The method of the present embodiment can be executed by Fig. 2 or microwave telecommunication devices shown in Fig. 3, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Figure 16 is the flow chart for the signal processing method that the embodiment of the present invention three provides, and as shown in figure 16, the method for the present embodiment may include:
Data S301, IDU to be sent to the road N+1 encode respectively, obtain the first digital signal of the road N+1.
N is the integer more than or equal to 1.
S302, IDU carry out interpolation processing to the first digital signal of the road N+1 respectively, obtain the second digital signal of the road N+1.
S303, IDU carry out framing to the second digital signal of the road N+1 according to default frame format and scrambling is handled, and obtains third digital signal.
S304, IDU export third digital signal to ODU；ODU inputs the third digital signal of IDU output.
S305, ODU carry out descrambling code to third digital signal and frame decoding are handled, obtain the second digital signal of the road N+1 according to default frame format.
S306, ODU carry out DPD, digital-to-analogue conversion, modulation and power amplification to the second digital signal of the road N+1 respectively and handle, and obtain the first analog signal of the road N+1.
S307, ODU emit the first analog signal of the road N+1 by antenna equipment.
The method of the present embodiment can be executed by Fig. 2 or microwave telecommunication devices shown in Fig. 3, be realized Principle is similar with technical effect, and details are not described herein again.
On the basis of above-mentioned each method embodiment, optionally, frame format: frame head, frame overhead, clock information, N+1 railway digital signal is preset.
Optionally, for the second digital signal of the first via, ODU carries out DPD processing to the second digital signal, comprising: ODU obtains the coupled signal of the first analog signal；And the coupled signal according to the first analog signal, DPD processing is carried out to the second digital signal.
Optionally, for each the second digital signal, above-mentioned ODU carries out digital predistortion compensation DPD, digital-to-analogue conversion, modulation and power amplification to the second digital signal and handles, obtain the first analog signal, include: that ODU carries out DPD, QMC, digital-to-analogue conversion, modulation and power amplification processing to the second digital signal, obtains the first analog signal.
Optionally, for each the second digital signal, above-mentioned ODU carries out digital predistortion compensation DPD, digital-to-analogue conversion, modulation and power amplification to the second digital signal and handles, obtain the first analog signal, include: that ODU carries out DPD, digital-to-analogue conversion, modulation, automatic gain amplification and power amplification processing to the second digital signal respectively, obtains the first analog signal.
Optionally, for each the second digital signal, above-mentioned ODU carries out digital predistortion compensation DPD, digital-to-analogue conversion, modulation and power amplification to the second digital signal and handles, obtain the first analog signal, include: that ODU carries out DPD, QMC, digital-to-analogue conversion, modulation, automatic gain amplification and power amplification processing to the second digital signal respectively, obtains the first analog signal.
Figure 17 is the flow chart for the signal processing method that the embodiment of the present invention four provides, and as shown in figure 17, the method for the present embodiment may include:
S401, ODU input received first analog signal of antenna equipment.
S402, ODU carry out low noise amplification, modulation, analog-to-digital conversion and filtering extraction to the first analog signal and handle, and obtain the first digital signal.
S403, ODU export the first digital signal to IDU；IDU inputs the first digital signal of ODU output.
S404, IDU carry out decoding processing to the first digital signal, obtain received data.
The method of the present embodiment can microwave telecommunication devices as shown in Figure 8 execute, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Figure 18 is the flow chart for the signal processing method that the embodiment of the present invention five provides, as shown in figure 18, The method of the present embodiment may include:
S501, ODU input received the first analog signal of the road N+1 of antenna equipment.
S502, ODU carry out low noise amplification, modulation, analog-to-digital conversion and filtering extraction to the first analog signal of the road N+1 respectively and handle, and obtain the first digital signal of the road N+1.
S503, ODU export the first digital signal of the road N+1 to IDU；IDU inputs the first digital signal of the road N+1 of ODU output.
S504, IDU carry out decoding processing to the first digital signal of the road N+1 respectively, obtain the received data in the road N+1.
The method of the present embodiment can microwave telecommunication devices as shown in Figure 9 execute, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Figure 19 is the flow chart for the signal processing method that the embodiment of the present invention six provides, and as shown in figure 19, the method for the present embodiment may include:
S601, ODU input received the first analog signal of the road N+1 of antenna equipment.
S602, ODU carry out low noise amplification, modulation, analog-to-digital conversion and filtering extraction to the first analog signal of the road N+1 respectively and handle, and obtain the first digital signal of the road N+1.
S603, ODU carry out framing to the first digital signal of the road N+1 according to default frame format and scrambling code is handled, and obtains the second digital signal.
S604, ODU export the second digital signal to IDU；IDU inputs the second digital signal of ODU output.
S605, IDU carry out descrambling code to the second digital signal according to default frame format and frame decoding is handled, and obtains the first digital signal of the road N+1.
S606, IDU carry out decoding processing to the first digital signal of the road N+1 respectively, obtain the received data in the road N+1.
The method of the present embodiment can microwave telecommunication devices as shown in Figure 9 execute, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Optionally, on the basis of above-mentioned each method embodiment, frame format: frame head, frame overhead, clock information, N+1 railway digital signal is preset.
Optionally, for per the first analog signal all the way, ODU carries out low noise amplification, modulation, analog-to-digital conversion and filtering extraction to the first analog signal and handles, obtain the first digital signal, include: that ODU carries out low noise amplification, modulation, analog-to-digital conversion, QMC and filtering extraction processing to the first analog signal, obtains First digital signal.
Optionally, for per the first analog signal all the way, ODU states the first analog signal and carries out low noise amplification, modulation, analog-to-digital conversion and filtering extraction processing, obtain the first digital signal, include: that ODU carries out low noise amplification, automatic gain amplification, modulation, analog-to-digital conversion and filtering extraction processing to the first analog signal, obtains the first digital signal.
Optionally, for per the first analog signal all the way, ODU carries out low noise amplification, modulation, analog-to-digital conversion and filtering extraction to the first analog signal and handles, obtain the first digital signal, include: that ODU carries out low noise amplification, automatic gain amplification, modulation, analog-to-digital conversion, QMC and filtering extraction processing to the first analog signal, obtains first digital signal.
Those of ordinary skill in the art will appreciate that: realizing all or part of the steps of above method embodiment, this can be accomplished by hardware associated with program instructions, program above-mentioned can be stored in a computer readable storage medium, the program when being executed, executes step including the steps of the foregoing method embodiments；And storage medium above-mentioned includes: read-only memory (English: Read-Only Memory, referred to as: ROM), the various media that can store program code such as random access memory (English: Random Access Memory, abbreviation: RAM), magnetic or disk.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；Although present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it is still possible to modify the technical solutions described in the foregoing embodiments, or equivalent substitution of some or all of the technical features；And these are modified or replaceed, the range for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.

Claims (39)

  1. A kind of microwave telecommunication devices characterized by comprising
    Indoor unit IDU and outdoor unit ODU；
    The IDU includes: encoder, interpolating module and the first digital signal interface；The interpolating module is connect with the encoder；
    The ODU includes: the second digital signal interface and ODU output control module；First digital signal interface is connect with second digital signal interface；
    The encoder obtains the first digital signal, and export first digital signal to the interpolating module for being encoded to sent data；
    The interpolating module, for inputting first digital signal of the encoder output, variable Rate interpolation processing is carried out to first digital signal, the second digital signal is obtained, second digital signal is exported to the ODU output control module by first digital signal interface and second digital signal interface；
    The ODU output control module, for inputting second digital signal by first digital signal interface and second digital signal interface, and second digital signal is subjected to digital predistortion compensation DPD, digital-to-analogue conversion, modulation and power amplification and is handled, the first analog signal is obtained, first analog signal is emitted by antenna equipment；Wherein, second digital signal belongs to baseband signal, and first analog signal belongs to microwave signal.
  2. Equipment according to claim 1, which is characterized in that the IDU further include: N number of encoder, N number of encoder are connect with the interpolating module, and the N is the integer more than or equal to 1；The ODU further include: N number of ODU output control module；
    The interpolating module, it is also used to input first digital signal of N number of encoder output, the first digital signal described in the road N carries out variable Rate interpolation processing, the second digital signal of the road N is obtained, second digital signal of the road N is exported to N number of ODU output control module by first digital signal interface and second digital signal interface.
  3. Equipment according to claim 1, which is characterized in that the IDU further include: N number of encoder and N number of interpolating module, N number of encoder are connect with N number of interpolating module respectively；The ODU further include: N number of ODU output control module；The N is the integer more than or equal to 1.
  4. Equipment according to claim 2 or 3, which is characterized in that
    First digital signal interface, for inputting second digital signal of the road N+1, framing is carried out to second digital signal of the road N+1 according to the default frame format for the digital signal transmitted between first digital signal interface and second digital signal interface and scrambling code is handled, third digital signal is obtained, the second digital signal interface of Xiang Suoshu exports the third digital signal；
    Second digital signal interface, for inputting the third digital signal, and descrambling code and frame decoding processing are carried out to the third digital signal according to the default frame format, second digital signal of the road N+1 is obtained, exports second digital signal of the road N+1 respectively to the N+1 ODU output control modules.
  5. Equipment according to claim 4, which is characterized in that the default frame format: frame head, frame overhead, clock information, N+1 railway digital signal.
  6. Equipment described in -5 any one according to claim 1, which is characterized in that the ODU output control module includes: DPD module, digital analog converter DAC, frequency mixer and power amplifier PA；
    DPD module, for inputting second digital signal, DPD processing is carried out to second digital signal, obtains the 4th digital signal, and export the 4th digital signal to the DAC；
    The DAC carries out digital-to-analogue conversion to the 4th digital signal for inputting the 4th digital signal, obtains the second analog signal, and export second analog signal to the frequency mixer；
    The frequency mixer is modulated processing to second analog signal for inputting second analog signal, obtains third analog signal, and export the third analog signal to the PA；
    The PA carries out power amplification processing to the third analog signal, obtains first analog signal, emit first analog signal by antenna for inputting the third analog signal.
  7. Equipment according to claim 6, which is characterized in that the DPD module includes DPD unit and analog-digital converter ADC；
    The ADC carries out analog-to-digital conversion process to the coupled signal of first analog signal for inputting the coupled signal of first analog signal, obtains the 5th digital signal, and export the 5th digital signal to the DPD unit；
    The DPD unit carries out DPD processing to second digital signal according to the 5th digital signal, obtains the 4th digital signal for inputting second digital signal and the 5th digital signal.
  8. Equipment according to claim 6 or 7, which is characterized in that the ODU output control module further include: QMC module；The QMC module is connect with the DPD module, and with it is described DAC connection；
    The QMC module carries out QMC processing to the 4th digital signal, obtains the 6th digital signal, Xiang Suoshu DAC exports the 6th digital signal for inputting the 4th digital signal of the DPD module output；
    The DAC, is specifically used for inputting the 6th digital signal, carries out digital-to-analogue conversion to the 6th digital signal, obtains the second analog signal, and export second analog signal to the frequency mixer.
  9. According to equipment described in claim 6-8 any one, which is characterized in that the ODU output control module further include: automatic gain amplifier；The automatic gain amplifier is connect with the frequency mixer, and is connect with the PA；
    The automatic gain amplifier carries out automatic gain enhanced processing to the third analog signal for inputting the third analog signal, obtains the 4th analog signal, and Xiang Suoshu PA exports the 4th analog signal；
    The PA, is specifically used for inputting the 4th analog signal, carries out power amplification processing to the 4th analog signal, obtains the third analog signal.
  10. Equipment described in -9 any one according to claim 1, which is characterized in that first digital signal interface is attached with second digital signal interface by plug-in card or blade mode.
  11. A kind of microwave telecommunication devices characterized by comprising indoor unit IDU and outdoor unit ODU；
    The IDU includes: decoder and the first digital signal interface；
    The ODU includes: the second digital signal interface and ODU input control module；First digital signal interface is connect with second digital signal interface；
    The ODU input control module, for inputting received first analog signal of antenna equipment, low noise amplification, modulation, analog-to-digital conversion and filtering extraction processing are carried out to first analog signal, the first digital signal is obtained, and first digital signal is exported to the decoder by second digital signal interface and first digital signal interface；
    The decoder carries out decoding processing to first digital signal, obtains received data for inputting first digital signal by second digital signal interface and the first digital signal mouth.
  12. Equipment according to claim 11, which is characterized in that the IDU further include: N number of decoder；The ODU further include: N number of ODU input control module；The N is the integer more than or equal to 1.
  13. Equipment according to claim 12, which is characterized in that
    Second digital signal interface, for inputting first digital signal of the N+1 ODU input control module output, framing and scrambling code processing are carried out according to the default frame format for the digital signal transmitted between first digital signal interface and second digital signal interface first digital signal described in the road N+1, the second digital signal is obtained, the first digital signal interface of Xiang Suoshu exports second digital signal；
    First digital signal interface, for inputting second digital signal, and descrambling code and frame decoding processing are carried out to second digital signal according to the default frame format, first digital signal of the road N+1 is obtained, Xiang Suoshu N+1 decoder exports first digital signal of the road N+1 respectively.
  14. Equipment according to claim 13, which is characterized in that the default frame format: frame head, frame overhead, clock information, N+1 railway digital signal.
  15. Equipment described in 1-14 any one according to claim 1, which is characterized in that the ODU input control module includes: low-noise amplifier LNA, frequency mixer, ADC, AAF module；
    The LNA carries out low noise amplification processing to first analog signal, obtains the second analog signal for inputting received first analog signal of antenna equipment；
    The frequency mixer is modulated processing to second analog signal for inputting second analog signal, obtains third analog signal, and export the third analog signal to the ADC；
    The ADC carries out analog-to-digital conversion process to the third analog signal for inputting the third analog signal, obtains third digital signal, and export the third digital signal to the AAF module；
    The AAF module, for inputting the third digital signal, and filtering extraction processing is carried out to the third digital signal, first digital signal is obtained, and first digital signal is exported to the corresponding decoder by second digital signal interface and first digital signal interface.
  16. Equipment according to claim 15, which is characterized in that the ODU input control module further include: QMC module, the QMC module are connect with the ADC, and are connect with the AAF module；
    The QMC module carries out QMC processing to the third digital signal for inputting the third digital signal, obtains the 4th digital signal, and export the 4th digital signal to the AAF module；
    The AAF module, is specifically used for inputting the 4th digital signal, carries out filtering extraction processing to the 4th digital signal, obtains first digital signal, and pass through second digital signal interface First digital signal is exported to the corresponding decoder with first digital signal interface.
  17. Equipment according to claim 15 or 16, which is characterized in that the ODU input control module further include: automatic gain amplifier, the automatic gain amplifier are connect with the frequency mixer, and are connect with the LNA；
    The automatic gain amplifier carries out automatic gain enhanced processing to second analog signal for inputting second analog signal, obtains the 4th analog signal, and Xiang Suoshu frequency mixer exports the 4th analog signal；
    The frequency mixer is specifically used for inputting the 4th analog signal, is modulated processing to the 4th analog signal, obtains the third analog signal, and export the third analog signal.
  18. Equipment described in 1-17 any one according to claim 1, which is characterized in that first digital signal interface is attached with second digital signal interface by plug-in card or blade mode.
  19. A kind of signal processing method characterized by comprising
    Indoor unit IDU is encoded to sent data, obtains the first digital signal；
    The IDU carries out variable Rate interpolation processing to first digital signal, obtains the second digital signal；
    The IDU exports second digital signal to indoor unit ODU.
  20. According to the method for claim 19, which is characterized in that further include:
    The data IDU to be sent to the road N encode respectively, obtain the first digital signal described in the road N；The N is the integer more than or equal to 1；
    The IDU carries out variable Rate interpolation processing to first digital signal of the road N respectively, obtains the second digital signal of the road N；
    The IDU exports second digital signal of the road N to the ODU.
  21. According to the method for claim 20, which is characterized in that the IDU exports the second digital signal described in the road N+1 to the ODU, comprising:
    The IDU carries out framing to second digital signal of the road N+1 according to default frame format and scrambling is handled, and obtains third digital signal；
    The IDU exports the third digital signal to the ODU.
  22. According to the method for claim 21, which is characterized in that the default frame format: frame head, frame overhead, clock information, N+1 railway digital signal.
  23. A kind of signal processing method characterized by comprising
    Outdoor unit ODU inputs the second digital signal of indoor unit IDU output；
    The ODU carries out digital predistortion compensation DPD, digital-to-analogue conversion, modulation and power amplification to second digital signal and handles, and obtains the first analog signal；
    The ODU emits first analog signal by antenna equipment；Wherein, second digital signal belongs to baseband signal, and first analog signal belongs to microwave signal.
  24. According to the method for claim 23, which is characterized in that further include:
    The ODU inputs the second digital signal of the road N of the IDU output；N is the integer more than or equal to 1；
    The ODU carries out DPD, digital-to-analogue conversion, modulation and power amplification to second digital signal of the road N respectively and handles, and obtains the first analog signal of the road N；
    The ODU emits first analog signal of the road N by antenna equipment.
  25. According to the method for claim 24, which is characterized in that the second digital signal described in the road N+1 of the ODU input IDU output, comprising:
    The ODU inputs the third digital signal of the IDU output；
    The ODU carries out descrambling code to the third digital signal and frame decoding is handled, obtain second digital signal of the road N+1 according to default frame format.
  26. According to the method for claim 25, which is characterized in that the default frame format: frame head, frame overhead, clock information, N+1 railway digital signal.
  27. According to method described in claim 23-26 any one, which is characterized in that the ODU carries out DPD processing to second digital signal, comprising:
    The ODU obtains the coupled signal of first analog signal；
    The ODU carries out DPD processing to second digital signal according to the coupled signal of first analog signal.
  28. According to method described in claim 23-27 any one, which is characterized in that the ODU carries out DPD, digital-to-analogue conversion, modulation and power amplification to second digital signal and handles, and obtains the first analog signal, comprising:
    The ODU carries out DPD, QMC, digital-to-analogue conversion, modulation and power amplification to second digital signal and handles, and obtains first analog signal.
  29. According to method described in claim 23-27 any one, which is characterized in that the ODU carries out digital predistortion compensation DPD, digital-to-analogue conversion, modulation and power amplification to second digital signal and handles, and obtains the first analog signal, comprising:
    The ODU carries out DPD, digital-to-analogue conversion, modulation, automatic gain amplification and power amplification to second digital signal and handles, and obtains first analog signal.
  30. A kind of signal processing method characterized by comprising
    Outdoor unit ODU inputs received first analog signal of antenna equipment；
    The ODU carries out low noise amplification, modulation, analog-to-digital conversion and filtering extraction to first analog signal and handles, and obtains the first digital signal；
    The ODU exports first digital signal to indoor unit IDU.
  31. According to the method for claim 30, which is characterized in that further include:
    The ODU inputs received the first analog signal of the road N of antenna equipment；The N is the integer more than or equal to 1；
    The ODU carries out low noise amplification, modulation, analog-to-digital conversion and filtering extraction to first analog signal of the road N respectively and handles, and obtains the first digital signal of the road N；
    The ODU exports first digital signal of the road N to the IDU.
  32. According to the method for claim 31, which is characterized in that the ODU exports the first digital signal described in the road N+1 to IDU, comprising:
    The ODU carries out framing to first digital signal of the road N+1 according to default frame format and scrambling code is handled, and obtains the second digital signal；
    The ODU exports second digital signal to the IDU.
  33. According to the method for claim 32, which is characterized in that the default frame format: frame head, frame overhead, clock information, N+1 railway digital signal.
  34. According to method described in claim 30-33 any one, which is characterized in that the ODU carries out low noise amplification, modulation, analog-to-digital conversion and filtering extraction to first analog signal and handles, and obtains the first digital signal, comprising:
    The ODU carries out low noise amplification, modulation, analog-to-digital conversion, QMC and filtering extraction to first analog signal and handles, and obtains first digital signal.
  35. According to method described in claim 30-34 any one, which is characterized in that the ODU carries out low noise amplification, modulation, analog-to-digital conversion and filtering extraction to first analog signal and handles, and obtains the first digital signal, comprising:
    The ODU carries out low noise amplification, automatic gain amplification, modulation, analog-to-digital conversion and filtering extraction to first analog signal and handles, and obtains first digital signal.
  36. A kind of signal processing method characterized by comprising
    Indoor unit IDU inputs the first digital signal of outdoor unit ODU output；
    The IDU carries out decoding processing to first digital signal, obtains received data.
  37. According to the method for claim 36, which is characterized in that further include:
    The IDU inputs the first digital signal of the road N of the ODU output；N is the integer more than or equal to 1；
    The IDU carries out decoding processing to first digital signal of the road N respectively, obtains the received data in the road N.
  38. According to the method for claim 37, which is characterized in that the first digital signal of the road N+1 of the IDU input ODU output, comprising:
    The IDU inputs the second digital signal of the ODU output；
    The IDU carries out descrambling code to second digital signal according to default frame format and frame decoding is handled, and obtains first digital signal of the road N+1.
  39. According to the method for claim 38, which is characterized in that the default frame format: frame head, frame overhead, clock information, N+1 railway digital signal.
CN201680084783.3A 2016-06-27 2016-06-27 Signal processing method and microwave telecommunication devices Pending CN109076641A (en)

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