CN101146307B - A frequency spectrum scanning device and its method - Google Patents
A frequency spectrum scanning device and its method Download PDFInfo
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- CN101146307B CN101146307B CN2006101652366A CN200610165236A CN101146307B CN 101146307 B CN101146307 B CN 101146307B CN 2006101652366 A CN2006101652366 A CN 2006101652366A CN 200610165236 A CN200610165236 A CN 200610165236A CN 101146307 B CN101146307 B CN 101146307B
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Abstract
The invention discloses a frequency-spectrum scanning device and a method thereof. The device comprises a back end equipped on a base station system and is characterized in that the device further comprises a frequency-spectrum collection/storage module for the real-time collection and storage of frequency-spectrum amplitude corresponding to each user carrier frequency; a processor for reading out the value of the frequency-spectrum amplitude, processing and packaging the value of the frequency-spectrum amplitude by a first software module, and then transmitting the processed and packaged results to a second software module equipped on the back end for the next processing; and a display unit for displaying the frequency-spectrum curve obtained after the processing by the second software module. The invention solves the problem that the prior base station system fails to display the frequency-spectrum curve of user carrier frequency by using software, and has the advantages of low hardware cost and reduced labor and material costs.
Description
Technical field
The present invention relates in the communication field technology such as baseband signal modulation, particularly relate to a kind of software and hardware that utilizes and be incorporated into line frequency spectrum scan method and device.
Background technology
Along with development of Communication Technique, operator improves constantly the reliability of communication system and the requirement of ease for use.When the operate as normal of base station, it is particularly important that the stability of user's carrier frequency and anti-interference just seem.Therefore, will carry out regular observation, to determine near not having other to disturb this carrier frequency to guarantee user's speech quality to user's carrier frequency.Under existing situation, realize that these requirements are difficult.Typically using frequency spectrograph could observe the carrier frequency of base station, but the base station always very disperses and is remote, and frequency spectrograph seems too heavy, and its price is very expensive again, and this just makes the carrier frequency of observing the user become a very complicated and difficult way that realizes.If can from the hardware logic processing apparatus of radio-frequency transmissions veneer, gather out information such as the spectrum amplitude of user's carrier frequency and spectral bandwidth, by software these information are handled accordingly again, just can directly obtain user's spectrum curve figure on the control desk display device of far-end, this will save greatly and reach the needed manpower and materials cost of this purpose in the past.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of frequency spectrum scanning device and method thereof, is used for solving the problem that existing base station system can't be passed through the spectrum curve of software explicit user carrier frequency.
To achieve these goals, the invention provides a kind of frequency spectrum scanning device, comprise the backstage that is arranged on base station system, it is characterized in that, also comprise:
One frequency spectrum is gathered memory module, is used for gathering in real time and storing the spectrum amplitude value of each user's carrier frequency correspondence;
One processor is used to read described spectrum amplitude value, and by first software module described spectrum amplitude value is handled, encapsulated, and will handle, encapsulated result passes to second software module that is arranged on the described backstage and handle again; And
One display unit is used to the spectrum curve that shows that described second software module processing obtains.
Described frequency spectrum scanning device, wherein, frequency spectrum is gathered memory module and is comprised again:
One frequency spectrum acquisition module is used to gather the frequency spectrum of each user's carrier frequency correspondence;
One frequency spectrum processing module is used for described frequency spectrum handled obtaining the spectrum amplitude value; And
One frequency spectrum memory module is used to store described spectrum amplitude value.
Described frequency spectrum scanning device, wherein, it is a fpga logic process chip that described frequency spectrum is gathered memory module.
Described frequency spectrum scanning device, wherein, described processor is central processing unit, MCU Microprocessor Control Unit or digital signal processor.
Described frequency spectrum scanning device, wherein, described device also comprises a key-course software module, is used to receive described processing, encapsulated result and described processing, encapsulated result and band type packed to handle send described second software module again to.
To achieve these goals, the present invention also provides a kind of spectrum scan method, it is characterized in that, comprising:
Step 1, frequency spectrum is gathered the spectrum amplitude value that each user's carrier frequency correspondence was gathered and stored to memory module in real time;
Step 2, processor read described spectrum amplitude value, and by first software module described spectrum amplitude value are handled, encapsulated, and will handle, encapsulated result passes to second software module that is arranged on the backstage and handle again; And
Step 3, display unit show the spectrum curve that described second software module processing obtains.
Described spectrum scan method wherein, in the described step 2, also comprises: described processor is gathered the step that memory module sends a reading command to described frequency spectrum.
Described spectrum scan method, wherein, in the described step 2, also comprise: receive described processing, encapsulated result by a key-course software module, and described processing, encapsulated result and band type packed handle the step be resent to described second software module.
Described spectrum scan method, wherein, in the described step 2, the described step of described spectrum amplitude value being handled by first software module is specially: when described spectrum amplitude value is not in a setting range, by described first software module described spectrum amplitude value is changed to a particular value.
Described spectrum scan method, wherein, in the described step 2, describedly the step that described spectrum amplitude value encapsulates is specially: the spectrum amplitude value that each carrier frequency frequency spectrum up-sampling obtains is formed an one-dimension array by described first software module by first software module.
Adopt the method for the invention and device, compared with prior art, have the following advantages:
1),, only need utilize some resources in the logical device that has possessed on the hardware single board to carry out the frequency spectrum acquisition process, need to increase extra hardware cost hardly at hardware aspect;
2), the customer service personnel does not need to finish with frequency spectrograph the frequency spectrum observation of user's carrier frequency again, and can observe the frequency spectrum of base station and carry out remote operation, has greatly saved the manpower and materials cost.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is the Organization Chart of frequency spectrum scanning device of the present invention;
Fig. 2 is the device refinement Organization Chart of spectrum scan of the present invention;
Fig. 3 is the example device figure of spectrum scan of the present invention;
Fig. 4 is the flow chart of spectrum scan method of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments technical scheme of the present invention is done further to describe in detail.
Seeing also Fig. 1, is the installation drawing of spectrum scan of the present invention.Device of the present invention mainly comprises: frequency spectrum is gathered memory module 10, processor 20, display unit 30.
Frequency spectrum is gathered memory module 10, is used for gathering in real time the spectrum amplitude value of each user's carrier frequency correspondence.
The daemon software module refers to background process and offers the application layer software of graphical interface of user.The backstage is meant the application software that is used for for user's operation, is installed on usually on the PC.
Seeing also Fig. 2, is the refinement Organization Chart of frequency spectrum scanning device of the present invention.This device comprises:
Frequency spectrum is gathered memory module 10, is used for gathering, handles, stores frequency spectrum; It comprises again:
Frequency spectrum acquisition module 101 is used to gather the frequency spectrum of each user's carrier frequency correspondence;
Frequency spectrum processing module 102 connects frequency spectrum acquisition module 101, is used for the frequency spectrum of gathering is handled, and obtains the spectrum amplitude value;
Frequency spectrum memory module 103; Connect frequency spectrum processing module 102, be used to store the spectrum amplitude value that obtains.
In this example, processor 20 can adopt CPU (Center Processing Unit, central processing unit), MCU (Microprocessor Control Unit, MCU Microprocessor Control Unit) or DSP (Digital SignalProcessing, digital signal processor).
Seeing also Fig. 3, is the example device figure of spectrum scan of the present invention.Among this figure, example device comprises:
A slice FPGA (Field Programmable Gate Array, field programmable gate array) logical process chip 10 is used for gathering in real time the spectrum amplitude value of each user's carrier frequency correspondence;
In this example, processor 20 adopts CPU;
Seeing also Fig. 4, is the flow chart of spectrum scan method of the present invention.This case description the process of spectrum scan, this process is specific as follows:
In the step 400, the veneer drive software is handled and is encapsulated these 128 spectrum amplitude values and passes to key-course software, changes step 500 over to;
In this step, the veneer drive software is handled these 128 spectrum amplitude values, that is, if the spectrum amplitude value that CPU reads from the fpga logic process chip not in certain scope, then the veneer drive software is changed to a particular value with it;
The veneer drive software encapsulates these 128 spectrum amplitude values,, 128 data that each carrier frequency frequency spectrum up-sampling obtains is formed an one-dimension array that is.
Key-course software be meant veneer drive software upper strata be used to carry out some scheduling and connect bottom and software that background application layer software carries out communication.
In the step 500, key-course software is passed to background application layer software processes with spectrum amplitude value and band type packing, changes step 600 over to; And
In this step, the spectrum amplitude value is for handling the result after encapsulating, and band type is the initiate information of key-course software.
In the step 600, background application layer software shows at terminal display by 128 spectrum amplitude sampled values spectrum curve that draws in the 1.2288M bandwidth.
In sum, the inventive method has been avoided the problem that must use frequency spectrograph that the base station radio-frequency veneer is measured in order to observe user's carrier frequency frequency spectrum in the existing base station system, can realize this process by way of hardware and software combination.Save base station system greatly and safeguarded needed human and material resources.
The present invention proposes the method for software and hardware combination, can from the hardware logic device, gather out information such as the spectrum amplitude of user's carrier frequency and spectral bandwidth, it is carried out the spectrum curve that processes and displays obtains user's carrier frequency by software.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (9)
1. a frequency spectrum scanning device comprises the backstage that is arranged on base station system, it is characterized in that, also comprises:
One frequency spectrum is gathered memory module, is used for gathering in real time and storing the spectrum amplitude value of each user's carrier frequency correspondence;
One processor, be used for gathering memory module and send user's carrier frequency frequency to described frequency spectrum, gather the spectrum amplitude value that memory module reads corresponding frequency from described frequency spectrum, and described spectrum amplitude value is handled, encapsulated by first software module, the spectrum amplitude value that each carrier frequency frequency spectrum up-sampling is obtained is formed an one-dimension array, will handle, encapsulated result passes to second software module processing that is arranged on the described backstage again; And
One display unit is used to the spectrum curve that shows that described second software module processing obtains.
2. frequency spectrum scanning device according to claim 1 is characterized in that, frequency spectrum is gathered memory module and comprised again:
One frequency spectrum acquisition module is used to gather the frequency spectrum of each user's carrier frequency correspondence;
One frequency spectrum processing module is used for described frequency spectrum handled obtaining the spectrum amplitude value; And
One frequency spectrum memory module is used to store described spectrum amplitude value.
3. frequency spectrum scanning device according to claim 1 and 2 is characterized in that, it is a fpga logic process chip that described frequency spectrum is gathered memory module.
4. frequency spectrum scanning device according to claim 1 and 2 is characterized in that, described processor is central processing unit, MCU Microprocessor Control Unit or digital signal processor.
5. frequency spectrum scanning device according to claim 1 and 2, it is characterized in that, described device also comprises a key-course software module, is used to receive described processing, encapsulated result and described processing, encapsulated result and band type packed to handle send described second software module again to.
6. a spectrum scan method is characterized in that, comprising:
Step 1, frequency spectrum is gathered the spectrum amplitude value that each user's carrier frequency correspondence was gathered and stored to memory module in real time;
Step 2, processor is gathered memory module to described frequency spectrum and is sent user's carrier frequency frequency, gather the spectrum amplitude value that memory module reads corresponding frequency from described frequency spectrum, and described spectrum amplitude value is handled, encapsulated by first software module, the spectrum amplitude value that each carrier frequency frequency spectrum up-sampling is obtained is formed an one-dimension array, will handle, encapsulated result passes to second software module processing that is arranged on the backstage again; And
Step 3, display unit show the spectrum curve that described second software module processing obtains.
7. spectrum scan method according to claim 6 is characterized in that, in the described step 2, also comprises: described processor is gathered the step that memory module sends a reading command to described frequency spectrum.
8. according to claim 6 or 7 described spectrum scan methods, it is characterized in that, in the described step 2, also comprise: receive described processing, encapsulated result by a key-course software module, and described processing, encapsulated result and band type packed handle the step be resent to described second software module.
9. according to claim 6 or 7 described spectrum scan methods, it is characterized in that, in the described step 2, the described step of described spectrum amplitude value being handled by first software module is specially: when described spectrum amplitude value is not in a setting range, by described first software module described spectrum amplitude value is changed to a particular value.
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CN101146307B true CN101146307B (en) | 2010-12-08 |
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CN102611509B (en) * | 2011-01-19 | 2015-04-15 | 华为技术有限公司 | Spectrum sensing method, spectrum sensing apparatus and database |
CN102353838B (en) * | 2011-06-30 | 2013-06-19 | 南京航空航天大学 | Rapid high precision frequency measuring realization method by applying FPGA chip |
CN111565081A (en) * | 2020-04-28 | 2020-08-21 | 深圳中科国威信息***技术有限公司 | Method, medium, terminal and device for scanning white spectrum frequency band in cognitive radio |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0906656B1 (en) * | 1996-06-17 | 2000-10-11 | Symmetricom, Inc. | Dsp implementation of a cellular base station receiver |
CN1346545A (en) * | 1999-04-12 | 2002-04-24 | 高通股份有限公司 | Method and system for detecting in-band jammers in a spread spectrum wireless base station |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0906656B1 (en) * | 1996-06-17 | 2000-10-11 | Symmetricom, Inc. | Dsp implementation of a cellular base station receiver |
CN1346545A (en) * | 1999-04-12 | 2002-04-24 | 高通股份有限公司 | Method and system for detecting in-band jammers in a spread spectrum wireless base station |
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