CN106330220A - Signal receiving device and apparatus, and communication device - Google Patents
Signal receiving device and apparatus, and communication device Download PDFInfo
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- CN106330220A CN106330220A CN201510368400.2A CN201510368400A CN106330220A CN 106330220 A CN106330220 A CN 106330220A CN 201510368400 A CN201510368400 A CN 201510368400A CN 106330220 A CN106330220 A CN 106330220A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
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Abstract
The invention provides a signal receiving device and apparatus, and a communication device. The method comprises the following steps: a receiving antenna receives a signal, and transmits the signal to a frequency selection filter; the frequency selection filter outputs signals of different frequency bands to corresponding transmission branches; the transmission branches process the signals by adjustable gain amplifiers and noise suppression filters which are connected in sequence, and output the signals to a combiner; the combiner processes the input signals of the transmission branches and outputs the input signals to a radio frequency sampler; and the radio frequency sampler processes the signals output by the combiners and outputs the signals to a signal processing apparatus in the device. By implementation of the signal receiving device and apparatus provided by the invention, simultaneous reception of multiple frequency bands can be realized, when the transmission branches are independent from each other and can realize the performance that receiving sensitivity performance can be still realized in another frequency band when a blockage signal is present in one frequency band, the structure is simple, the power consumption and the PCB occupation area are low, the miniaturization of the base station is facilitated, and the practicability of multi-band receiving technology is improved.
Description
Technical field
The present invention relates to signal and receive field, particularly relate to a kind of signal acceptance method and device, communication equipment.
Background technology
Along with multiband is improved constantly by wireless telecommunication system with integrated demand, base station system to small size,
Big bandwidth and multiband trend development.For the demand of dual band receiver, the mode realized at present has following
Two kinds: as it is shown in figure 1, owing to being limited by intermediate frequency variable gain amplifier bandwidth, reception ADC bandwidth
And the requirement that often band transmissions branch gain independently controls, one-segment transmission branch can only be replicated and come
Realizing, the number of devices that the problem that the method is brought is is many, area occupied is big, power consumption is big, is unsatisfactory for little
The demand of type base station, the application of existing two-band method of reseptance is poor.
Therefore, how to provide a kind of signal acceptance method improving application, be those skilled in the art urgently
Solve the technical problem that.
Summary of the invention
The invention provides a kind of signal acceptance method and device, communication equipment, to solve prior art application
The problem that property is poor.
The invention provides a kind of signal acceptance method, comprising: reception antenna receives signal and transports to frequency
Select wave filter；The signal of frequency selective filter output different frequency range is to corresponding transmission branch；Transmission branch
After utilizing the variable gain amplifier being sequentially connected with and noise inhibiting wave filter to process signal, output is to combiner；
After combiner processes the input signal of each transmission branch, output is to radio frequency sampling device；Radio frequency sampling device processes and closes
The signal processing apparatus to equipment is exported after the device of road.
Further, transmission branch also includes low-noise amplifier, and the output signal of frequency selective filter is led to
After crossing low-noise amplifier process, output is to variable gain amplifier.
Further, frequency selective filter includes receiving duplexer frequency selective filter, transmission branch
Number is two.
Further, also include: calculate and control the degree of suppression of noise inhibiting wave filter in each transmission branch.
Further, also include: according to output and the output work of each transmission branch of radio frequency sampling device
Rate, the attenuation of variable gain amplifier in controlling the interior calculating of each transmission branch and controlling each transmission branch.
Present invention provides a kind of signal receiving device, comprising: reception antenna, frequency selective filter,
At least two transmission branch, combiner and radio frequency sampling device；It is adjustable that transmission branch all includes being sequentially connected with
Gain amplifier and noise inhibiting wave filter；The input of frequency selective filter is connected with reception antenna, bag
Including the outfan that multiple output frequency range is different, each outfan is connected to the input of the transmission branch of correspondence；Pass
The outfan of defeated branch road is connected to the input of combiner；The outfan of combiner connects the defeated of radio frequency sampling device
Enter end, the signal processing apparatus in the outfan connection equipment of radio frequency sampling device.
Further, transmission branch also includes low-noise amplifier, and the input of low-noise amplifier connects frequency
Rate selects the outfan of wave filter, and the outfan of low-noise amplifier connects the input of variable gain amplifier.
Further, frequency selective filter includes receiving duplexer frequency selective filter, transmission branch
Number is two.
Further, also including computing module, computing module is used for calculating and control noise in each transmission branch
The degree of suppression of rejects trap.
Further, also include control module, control module for according to the output of radio frequency sampling device,
And the output of each transmission branch, adjustable increasing in calculating and control each transmission branch in controlling each transmission branch
The attenuation of benefit amplifier.
Present invention provides a kind of communication equipment, it includes signal processing apparatus, and the present invention provides
Signal receiving device.
Beneficial effects of the present invention:
The invention provides a kind of signal acceptance method, it is possible to achieve multiband receives simultaneously, and owing to passing
Defeated branch road is separate can be implemented in a frequency range band in when having block signal, another frequency range is still able to realize
Receiving sensitivity performance, framework is simple, power consumption and PCB area occupied relatively low, the beneficially miniaturization of base station,
Improve the application of multiband reception technique.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of existing signal receiving device；
The structural representation of the signal receiving device that Fig. 2 provides for first embodiment of the invention；
The flow chart of the signal acceptance method that Fig. 3 provides for second embodiment of the invention；
The structural representation of the signal receiving device that Fig. 4 provides for third embodiment of the invention；
The flow chart of the signal acceptance method that Fig. 5 provides for third embodiment of the invention.
Detailed description of the invention
Now by the way of detailed description of the invention combines accompanying drawing, the present invention is made and further annotate explanation.
First embodiment:
The structural representation of the signal receiving device that Fig. 2 provides for first embodiment of the invention, as shown in Figure 2,
In the present embodiment, the signal receiving device 1 that the present invention provides includes: reception antenna 11, frequency select filter
Ripple device 12, at least two transmission branch 13, combiner 14 and radio frequency sampling device 15；Transmission branch 13 is equal
Including the variable gain amplifier 131 being sequentially connected with and noise inhibiting wave filter 132；Frequency selective filter
The input of 12 is connected with reception antenna 11, and including the outfan that multiple output frequency ranges are different, each outfan is even
It is connected to the input of the transmission branch 13 of correspondence；The outfan of transmission branch 13 is connected to the defeated of combiner 14
Enter end；The outfan of combiner 14 connects the input of radio frequency sampling device 15, the output of radio frequency sampling device 15
Signal processing apparatus in end connection equipment.
In certain embodiments, the transmission branch 13 in above-described embodiment also includes low-noise amplifier, low noise
The input rate of connections of acoustic amplifier selects the outfan of wave filter 12, and the outfan of low-noise amplifier is even
Connect the input of variable gain amplifier 131.
In certain embodiments, the frequency selective filter 12 in above-described embodiment includes receiving duplexer frequency
Selecting wave filter, the number of transmission branch 13 is two.
In certain embodiments, the signal receiving device 1 in above-described embodiment also includes computing module, calculates
Module is for calculating and controlling the degree of suppression of noise inhibiting wave filter in each transmission branch 13.
In certain embodiments, the signal receiving device 1 in above-described embodiment also includes control module, controls
Module, for the output according to radio frequency sampling device and the output of each transmission branch 13, controls each biography
Calculate in defeated branch road 13 and control the attenuation of variable gain amplifier in each transmission branch 13.
Corresponding, present invention provides a kind of communication equipment, it includes signal processing apparatus, and this
The signal receiving device of bright offer.General, communication equipment is the equipment such as base station.
Second embodiment:
The flow chart of the signal acceptance method that Fig. 3 provides for second embodiment of the invention, from the figure 3, it may be seen that
In the present embodiment, the signal acceptance method that the present invention provides comprises the following steps:
S301: reception antenna receives signal and transports to frequency selective filter；
The signal of S302: frequency selective filter output different frequency range is to corresponding transmission branch；
S303: transmission branch utilizes the variable gain amplifier being sequentially connected with and noise inhibiting wave filter to process letter
After number, output is to combiner；
After S304: combiner processes the input signal of each transmission branch, output is to radio frequency sampling device；
S305: radio frequency sampling device exports the signal processing apparatus to equipment after processing combiner.
In certain embodiments, the transmission branch in above-described embodiment also includes low-noise amplifier, and frequency is selected
Selecting after the output signal of wave filter processed by low-noise amplifier, output is to variable gain amplifier.
In certain embodiments, the frequency selective filter in above-described embodiment includes receiving the choosing of duplexer frequency
Selecting wave filter, the number of transmission branch is two.
In certain embodiments, above-described embodiment also includes: calculates and controls noise suppressed in each transmission branch
The degree of suppression of wave filter.
In certain embodiments, above-described embodiment also includes: according to the output of radio frequency sampling device and each
The output of transmission branch, in calculating and control each transmission branch in controlling each transmission branch, adjustable gain is put
The attenuation of big device.
In conjunction with concrete application scenarios the present invention done and further annotate explanation.
3rd embodiment:
The present embodiment combines concrete utilization scene and is the present invention and further annotates explanation.
The structural representation of the signal receiving device that Fig. 4 provides for third embodiment of the invention, as shown in Figure 4,
In the present embodiment, the signal receiving device that the present invention provides includes:
Reception antenna 11, frequency selective filter 12, at least two transmission branch 13, combiner 14, penetrate
Sampler 15, computing module 16 and control module 17；It is low that transmission branch 13 all includes being sequentially connected with
Noise amplifier 133, variable gain amplifier 131 and noise inhibiting wave filter 132；Frequency selective filter
The input of 12 and reception antenna 11, and include the outfan that multiple output frequency range is different, each outfan connects
Input to corresponding transmission branch 13；The outfan of transmission branch 13 is connected to the input of combiner 14
End；The outfan of combiner 14 connects the input of radio frequency sampling device 15, the outfan of radio frequency sampling device 15
Signal processing apparatus in connection equipment.
The structural representation of the signal acceptance method that Fig. 5 provides for third embodiment of the invention, as shown in Figure 5,
In the present embodiment, the signal acceptance method that the present invention provides includes:
The two-band signal that reception antenna is received by S501: frequency selective filter is separately to corresponding transmission branch.
S502: low-noise amplifier carries out low noise power amplification to the small-signal of two frequency ranges received respectively.
S503: variable gain amplifier carries out gain process to signal under the control of control module.
Concrete, variable gain amplifier module, it is respectively used to the Gain tuning of two band receiver, greatly
Carry out gain reduction during block signal input, during the input of sensitivity small-signal, carry out gain amplification.
This step includes following sub-step:
51-1: control module calculates the saturation power output power levels of radio frequency sampling device RFADC, herein
Power level refers to the general power of two frequency ranges；Peak-to-average force ratio according to system signal arranges variable gain amplifier AGC
Attenuation threshold and decay stepping；
51-2: control module reads PD1 and detects whether the power level pointed out reaches attenuation threshold, if yes
Perform 51-3, if it is otherwise, re-execute 51-2；
51-3: read PD2 test point and the power level of PD3 test point, it is judged that at PD2, power is the biggest
Detecting power+Z at PD3, wherein Z is suitably worth according to concrete system design alternative, if YES then perform
51-4, if it is otherwise, perform 51-5；
51-4: according to the variable gain amplifier on decay stepping decay frequency range 1 link, perform 51-2 afterwards
Carry out detecting whether to reach attenuation threshold；
51-5: judge that at PD3, power, whether more than detecting power+Z at PD2, if yes performs 51-6, if
For no execution 51-7；
51-6: according to the variable gain amplifier on decay stepping decay frequency range 2 link, perform 51-2 afterwards
Carry out detecting whether to reach attenuation threshold；
51-7: decay the variable gain amplifier in two band link according to decay stepping respectively, perform afterwards
61-2 carries out detecting whether to reach attenuation threshold.
Corresponding, this step also includes that flow process is adjusted back in gain:
52-1: suitable gain readjustment thresholding is set according to system requirements；
52-2: read the detection power at PD1, sees and whether arrives gain readjustment thresholding, if yes perform 52-3,
If NO 52-2 is re-executed；
52-3: judge that at PD2, power, whether more than detecting power+Z at PD3, if yes performs 52-4, if
For no execution 52-7；
52-4: whether the attenuation judging frequency range 2 place link is 0dB, if yes performs 52-5, if
No execution 52-6；
52-5: the gain on readjustment frequency range 1 link, readjustment stepping is decay stepping, re-executes 52-3 afterwards；
52-6: the gain on readjustment frequency range 2 link, readjustment stepping is decay stepping, re-executes 52-3 afterwards；
52-7: judge that at PD3, power, whether more than detecting power+Z at PD2, if yes performs 52-8, if
For no execution 52-11；
52-8: whether the attenuation judging frequency range 1 place link is 0dB, if yes performs 52-9, if
No execution 52-10；
52-9: the gain on readjustment frequency range 2 link, readjustment stepping is decay stepping, re-executes 52-3 afterwards；
52-10: the gain on readjustment frequency range 1 link, readjustment stepping is decay stepping, re-executes 52-3 afterwards；
52-11: adjust back the gain in two band link respectively, readjustment stepping is decay stepping, the most again holds
Row 52-3；
S504: noise inhibiting wave filter is filtered processing under the control of computing module.
Computing module calculates, according to the low noise performance of RFADC, the sensitivity that two band transmissions branch roads need respectively
Under least gain；Saturated power level according to RFADC and the band internal congestion electricity of eating dishes without rice or wine of two band requirement
Flat, calculate the maximum gain under the obstruction that two band transmissions branch roads need respectively；Extract two frequency ranges in resistance
The maximum that in the case of plug, gain reduction amount requires.
Assuming under the blocking level of frequency range 2, the gain reduction amount of transmission branch is X2, and frequency range 1 carries interior without hindrance
Plug incoming level is sensitivity signal power, and the link undamped amount noise coefficient of frequency range 1 is NF1, and gain is
G1, after frequency range 2 gain reduction X, the noise coefficient of link is NF2, and gain is G2；Definition frequency range 1 filters
Device degree of suppression in frequency range 2 frequency range be A1 (on the occasion of), frequency range 2 wave filter is in frequency range 1 frequency range
Degree of suppression be A2 (on the occasion of)；Calculate frequency range 1 place analog link before combiner, frequency range 2 frequency range
In heat level of making an uproar be-174dBm/Hz+NF1+G1-A1, the analog link at frequency range 2 place is before combiner
Heat in frequency range 2 frequency range level of making an uproar is-174dBm/Hz+NF2+G2-X2, it is desirable to the former heat is made an uproar and compared the latter
Heat make an uproar little a certain amount of Y (on the occasion of) time, the overall noise after superposition can exist with the analog link at frequency range 2 place
Heat in the range of frequency range 2 is made an uproar equal, i.e.
-174dBm/Hz+NF1+G1-A1=-174dBm/Hz+NF2+G2-X2-Y, then degree of being inhibited requirement A1=
NF1-NF2+X2+Y；
Assuming under the blocking level of frequency range 1, the gain reduction amount of transmission branch is X1, and frequency range 2 carries interior without hindrance
Plug incoming level is sensitivity signal power, and the link undamped amount noise coefficient of frequency range 2 is NF2, and gain is
G2, after frequency range 1 gain reduction X1, the noise coefficient of link is NF1, and gain is G1；Definition frequency range 1 filters
Device degree of suppression in frequency range 2 frequency range be A1 (on the occasion of), frequency range 2 wave filter is in frequency range 1 frequency range
Degree of suppression be A2 (on the occasion of)；Calculate frequency range 2 place analog link before combiner, frequency range 1 frequency range
In heat level of making an uproar be-174dBm/Hz+NF2+G2-A2, the analog link at frequency range 1 place is before combiner
Heat in frequency range 1 frequency range level of making an uproar is-174dBm/Hz+NF1+G1-X1, it is desirable to the former heat is made an uproar and compared the latter
Heat make an uproar little a certain amount of Y (on the occasion of) time, the overall noise after superposition can exist with the analog link at frequency range 2 place
Heat in the range of frequency range 2 is made an uproar equal, i.e.
-174dBm/Hz+NF2+G2-A2=-174dBm/Hz+NF1+G1-X1-Y, then degree of being inhibited A2=
NF2-NF1+X1+Y。
S505: combiner exports to radio frequency sampling device after the signal of two frequency ranges is closed road.
S506: radio frequency sampling device realizes the sampling of big bandwidth multi-frequency band radio-frequency, directly radiofrequency signal is converted to base
Band signal.
In the present embodiment, noise inhibiting wave filter, for receiving frequency range 2 in transmission branch in frequency range 1
The noise suppressed of frequency range to certain level, receive frequency range 1 in transmission branch in frequency range 2 simultaneously
The noise suppressed of frequency range scope is to certain level；If having block signal in frequency range 1, connecing of frequency range 1
Receipts machine gain gain reduction to be carried out ensures that RFADC device power does not spills over, and does not has obstruction to connect in frequency range 2
The gain of receipts machine remains on maximum gain, and so after variable gain amplifier, the low noise level of output is not
With, the difference of two frequency range low noise level is relevant with the gain inequality of link and NF, noise electricity after combiner
Flat is superposition, if the noise power difference of two-way is relatively big, will certainly affect noise level low transmission branch road
SNR, before therefore noise inhibiting wave filter must be placed at combiner.
In summary, by the enforcement of the present invention, at least there is following beneficial effect:
Multiband can be realized receive simultaneously, and can be implemented in a frequency range owing to transmission branch is separate
When having block signal in band, another frequency range is still able to realize receiving sensitivity performance, and framework is simple, power consumption
Relatively low with PCB area occupied, the beneficially miniaturization of base station, improve the application of multiband reception technique.
Below it is only the detailed description of the invention of the present invention, not the present invention is done any pro forma restriction,
Any simple modification that embodiment of above is done by every technical spirit according to the present invention, equivalent variations,
In conjunction with or modify, all still fall within the protection domain of technical solution of the present invention.
Claims (11)
1. a signal acceptance method, it is characterised in that including:
Reception antenna receives signal and transports to frequency selective filter；
The signal of described frequency selective filter output different frequency range is to corresponding transmission branch；
Described transmission branch utilizes the variable gain amplifier being sequentially connected with and noise inhibiting wave filter to process signal
After, output is to combiner；
After described combiner processes the input signal of each transmission branch, output is to radio frequency sampling device；
Described radio frequency sampling device exports the signal processing apparatus to equipment after processing described combiner.
2. signal acceptance method as claimed in claim 1, it is characterised in that described transmission branch is also wrapped
Including low-noise amplifier, the output signal of described frequency selective filter is processed by described low-noise amplifier
After, output to described variable gain amplifier.
3. signal acceptance method as claimed in claim 1, it is characterised in that described frequency selects filtering
Device includes receiving duplexer frequency selective filter, and the number of described transmission branch is two.
4. signal acceptance method as claimed in claim 1, it is characterised in that also include: calculate and control
The degree of suppression of described noise inhibiting wave filter in making each transmission branch.
5. the signal acceptance method as described in any one of Claims 1-4, it is characterised in that also include:
Output according to described radio frequency sampling device and the output of each transmission branch, control each transmission branch
In described calculating the attenuation of described variable gain amplifier in controlling each transmission branch.
6. a signal receiving device, it is characterised in that including: reception antenna, frequency selective filter,
At least two transmission branch, combiner and radio frequency sampling device；Described transmission branch all includes being sequentially connected with
Variable gain amplifier and noise inhibiting wave filter；The input of described frequency selective filter and described reception
Antenna connects, and including the outfan that multiple output frequency ranges are different, each outfan is connected to the transmission branch of correspondence
Input；The outfan of described transmission branch is connected to the input of described combiner；Described combiner
Outfan connects the input of described radio frequency sampling device, in the outfan connection equipment of described radio frequency sampling device
Signal processing apparatus.
7. signal receiving device as claimed in claim 6, it is characterised in that described transmission branch is also wrapped
Including low-noise amplifier, the input of described low-noise amplifier connects the output of described frequency selective filter
End, the outfan of described low-noise amplifier connects the input of described variable gain amplifier.
8. signal receiving device as claimed in claim 6, it is characterised in that described frequency selects filtering
Device includes receiving duplexer frequency selective filter, and the number of described transmission branch is two.
9. signal receiving device as claimed in claim 6, it is characterised in that also include computing module,
Described computing module is the degree of suppression of described noise inhibiting wave filter in calculating and controlling each transmission branch.
10. the signal receiving device as described in any one of claim 6 to 9, it is characterised in that also include
Control module, described control module is for the output according to described radio frequency sampling device and each transmission branch
Output, in controlling each transmission branch described calculating and in controlling each transmission branch described adjustable gain put
The attenuation of big device.
11. 1 kinds of communication equipments, it is characterised in that include signal processing apparatus, and such as claim 6
To the signal receiving device described in 10 any one.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510368400.2A CN106330220B (en) | 2015-06-29 | 2015-06-29 | Signal receiving method and device and communication equipment |
| JP2017564739A JP2018524884A (en) | 2015-06-29 | 2016-03-03 | Signal receiving method and apparatus, communication device, program, and recording medium |
| PCT/CN2016/075485 WO2017000579A1 (en) | 2015-06-29 | 2016-03-03 | Signal receiving method and apparatus, and communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510368400.2A CN106330220B (en) | 2015-06-29 | 2015-06-29 | Signal receiving method and device and communication equipment |
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| CN106330220A true CN106330220A (en) | 2017-01-11 |
| CN106330220B CN106330220B (en) | 2020-04-28 |
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| CN201510368400.2A Active CN106330220B (en) | 2015-06-29 | 2015-06-29 | Signal receiving method and device and communication equipment |
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| JP (1) | JP2018524884A (en) |
| CN (1) | CN106330220B (en) |
| WO (1) | WO2017000579A1 (en) |
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| CN109150216A (en) * | 2017-06-13 | 2019-01-04 | 中兴通讯股份有限公司 | A kind of dual band receiver and its auto gain control method |
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| CN112290973A (en) * | 2020-10-23 | 2021-01-29 | 国信军创(岳阳)六九零六科技有限公司 | Combiner |
| CN113890642B (en) * | 2021-10-09 | 2023-12-05 | 中信科移动通信技术股份有限公司 | Method and device for checking communication system receiver |
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| CN109150216A (en) * | 2017-06-13 | 2019-01-04 | 中兴通讯股份有限公司 | A kind of dual band receiver and its auto gain control method |
| CN109150216B (en) * | 2017-06-13 | 2021-01-22 | 中兴通讯股份有限公司 | Dual-band receiver and automatic gain control method thereof |
| CN109756238A (en) * | 2017-11-08 | 2019-05-14 | 中兴通讯股份有限公司 | A kind of processing method and processing device of multi-band signal |
| WO2019091435A1 (en) * | 2017-11-08 | 2019-05-16 | 中兴通讯股份有限公司 | Method and device for processing multi-band signal, and storage medium |
| CN112821902A (en) * | 2019-11-18 | 2021-05-18 | 海能达通信股份有限公司 | Receiver, control method of receiver and mobile terminal |
| CN112821902B (en) * | 2019-11-18 | 2022-08-30 | 海能达通信股份有限公司 | Receiver, control method of receiver and mobile terminal |
| CN115276691A (en) * | 2021-10-14 | 2022-11-01 | 神基科技股份有限公司 | Wireless signal receiving device and system |
| CN115296733A (en) * | 2022-07-18 | 2022-11-04 | 三维通信股份有限公司 | Uplink combined signal anti-overflow method and device, DAS (data acquisition System) and storage medium |
| CN115296733B (en) * | 2022-07-18 | 2024-02-06 | 三维通信股份有限公司 | Uplink combined signal anti-overflow method, device, DAS system and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018524884A (en) | 2018-08-30 |
| CN106330220B (en) | 2020-04-28 |
| WO2017000579A1 (en) | 2017-01-05 |
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