CN103944650B - Method for detecting standing wave and system - Google Patents
Method for detecting standing wave and system Download PDFInfo
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- CN103944650B CN103944650B CN201310024405.4A CN201310024405A CN103944650B CN 103944650 B CN103944650 B CN 103944650B CN 201310024405 A CN201310024405 A CN 201310024405A CN 103944650 B CN103944650 B CN 103944650B
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Abstract
The present invention provides a kind of method for detecting standing wave, including step: preset the first standing wave testing process and the second standing wave testing process at Remote Radio Unit; Select the first standing wave testing process and/or the second standing wave testing process that Remote Radio Unit performs standing wave detection according to arranging instruction; Second detected value of the first detected value of the first standing wave testing process detection or the detection of the second standing wave testing process is updated to standing wave Value Data storehouse. The present invention also provides for the standing wave detection system corresponding with said method, by the technology of the present invention, can standing wave testing process needed for flexible configuration equipment, reduce the difficulty realized in engineering, improve the versatility of equipment, avoid the impact of unusual condition, improve stability and safety that equipment runs.
Description
Technical field
The present invention relates to standing wave detection technique, particularly relate to a kind of method for detecting standing wave and system.
Background technology
In Remote Radio Technique field, Remote Radio Unit (Remoteradiounit, RRU) equipment is generally by proprietary standing wave detection circuit, DSP (digitalsignalprocessing, digital signal processor) standing wave detects or the mode of pure software standing wave detection carries out standing wave detection, for the distinct device that Remote Radio Unit adopts, adopt a kind of standing wave detection pattern comparatively mated, it is possible to reduce equipment cost to a certain extent.
But the standing wave detection scheme of above-mentioned single-mode, it is impossible to the application demand flexible configuration standing wave testing process according to user, equipment interoperability is poor, and equipment is easily by the impact of unusual condition, causes that the stability of equipment and safety are poor.
Summary of the invention
Based on this, it is necessary to for the problems referred to above, it is provided that a kind of method for detecting standing wave and system.
A kind of method for detecting standing wave, comprises the steps:
The first standing wave testing process and the second standing wave testing process is preset at Remote Radio Unit;
Select the first standing wave testing process and/or the second standing wave testing process that Remote Radio Unit performs standing wave detection according to arranging instruction;
Second detected value of the first detected value of the first standing wave testing process detection or the detection of the second standing wave testing process is updated to standing wave Value Data storehouse.
A kind of standing wave detection system, including:
Testing process presetting module, for presetting the first standing wave testing process and the second standing wave testing process at Remote Radio Unit;
Standing wave detection module, for according to arrange instruction select the first standing wave testing process and/or the second standing wave testing process to Remote Radio Unit perform standing wave detection;
Detected value is new module more, for the first detected value of the first standing wave testing process detection or the second detected value of the second standing wave testing process detection are updated to standing wave Value Data storehouse.
Above-mentioned method for detecting standing wave and system, arrange multiple standing wave testing process at Remote Radio Unit, selects standing wave detection mode according to arranging instruction, and the corresponding detected value of reselection is updated to standing wave Value Data storehouse. Standing wave detection dynamic change. The standing wave testing process of various modes, the standing wave detection time can not only be shortened, and can according to the application demand at engineering construction scene, standing wave testing process needed for flexible configuration equipment, reduces the difficulty realized in engineering, improves the versatility of equipment, simultaneously, the standing wave testing process of various modes can supplement mutually, it is to avoid the impact of unusual condition, improves stability and safety that equipment runs.
Accompanying drawing explanation
Fig. 1 is the method for detecting standing wave flow chart of an embodiment;
Fig. 2 is the standing wave detection system structure schematic diagram of an embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing, the detailed description of the invention of the method for detecting standing wave of the present invention is described in detail.
Fig. 1 illustrates the method for detecting standing wave flow chart of an embodiment, comprises the steps:
Step S10: preset the first standing wave testing process and the second standing wave testing process at Remote Radio Unit.
In this step, presetting multiple standing wave testing process mainly by Remote Radio Unit, it is achieved the standing wave detection variation of equipment, thus expanding Remote Radio Unit standing wave to detect the detection mode supported, improving the versatility of equipment.
In one embodiment, described first standing wave testing process is DSP standing wave testing process, concrete, at Remote Radio Unit, dsp chip is set, when starting DSP standing wave testing process, gather the relevant standing wave data (forward power and reflection power) of duplexer, then calculate standing wave value at dsp chip.
Described second standing wave testing process is pure software standing wave testing process, concrete, Remote Radio Unit arranges standing wave detection application program, FPGA (the Field-ProgrammableGateArray of Remote Radio Unit can be arranged on, field programmable gate array) on, when starting pure software standing wave testing process, application program enters standing wave testing process and calculates standing wave value.
By the DSP standing wave testing process of above-mentioned setting and pure software standing wave testing process, both complementing one another can be realized, both according to Practical Project demand, Remote Radio Unit can be set and operate in one of which pattern, two kinds of detection patterns can also be run simultaneously, thus realizing standing wave detection variation, highly versatile, it is beneficial to engineering construction, and, when one of which detects pattern appearance exception, it is possibility to have another pattern is supplemented in time, improves the safety of equipment.
Further, consider that DSP standing wave testing process includes more identical step with pure software standing wave testing process, preferably, in pure software standing wave testing process, reflection coefficient is obtained by described dsp chip, utilization is arranged on the application program on system CPU (CentralProcessingUnit, central processing unit) and calculates standing wave value according to described reflection coefficient.
Generally, all the comprising the steps: of DSP standing wave testing process and pure software standing wave testing process
1) gather time-domain data stream and do relevant treatment (including mixing, filtering etc.).
2) plural groups of time domain data is made Fourier transformation, then carry out data pick-up, extract the carrier wave point set in frequency band.
3) from selected carrier wave point, select the carrier wave of detection.
4) the reflection coefficient Tin vector of test is calculated according to the carrier wave selected.
5) corresponding standing wave value is calculated according to Tin vector.
Both differ primarily in that: DSP standing wave detection final calculating standing wave value is DSP, and the final standing wave value that calculates of pure software standing wave detection is upper layer software (applications). The time that the detection of DSP standing wave calculates standing wave value is very fast, it is necessary to realize on special DSP chip, and the pure software standing wave detection calculating standing wave time is longer, is realized by the application program on upper strata.
Above-mentioned pure software standing wave testing process obtains reflection coefficient by dsp chip, calculate standing wave value application program and operate on the CPU of remote radio unit system, meanwhile, it is arranged on system CPU by the process of pure software standing wave testing process calculating standing wave value further to carry out. Relative to currently commonly used, standing wave being detected the mode that program is arranged on FPGA, owing to DSP can share the partial arithmetic task being originally responsible for by FPGA, application program will operate on CPU, share the processor active task of FPGA further. Optimum utilization dsp chip and system CPU, realize the function of two kinds of testing processes in same system, reduces the burden of FPGA, it is possible to improves FPGA and processes the efficiency of digital signal, and then improve communication efficiency, reduces the cost of equipment.
Step S20: select the first standing wave testing process and/or the second standing wave testing process that Remote Radio Unit performs standing wave detection according to arranging instruction.
In this step, mainly when equipment starts, according to user's demand in engineering, select standing wave testing process to carry out standing wave detection by arranging instruction, improve the motility that standing wave testing process configures.
Specifically, after the equipment of Remote Radio Unit starts, loading data library file and configuration file, wherein, database file is the control file that equipment standing wave testing process runs, and the instruction that arranges of file specifies the standing wave testing process needed for equipment, loads the various chips of also initialization apparatus according to configuration file, standing wave testing process that is that load acquiescence or that specify, carries out standing wave detection to each radio frequency mouth.
In one embodiment, the equipment compatible in order to expand standing wave testing process, the acquiescence standing wave testing process of all right starting device before step S20; Wherein, described acquiescence standing wave testing process includes the testing process that adopts proprietary standing wave detection circuit to perform.
Owing to when equipment starts, equipment loads acquiescence standing wave testing process, the acquiescence standing wave testing process that this flow process starts according to database file. Such as, for adopting the equipment of proprietary standing wave detection circuit, acquiescence standing wave testing process carries out proprietary standing wave detection circuit after equipment starts, apparatus self-adaptation selects standing wave testing process, starting acquiescence standing wave detection, it is also possible to support required standing wave testing process according to abnormal the automatically selecting of equipment running status such as standing wave flexibly. The the first standing wave testing process arranged, the second standing wave testing process can be adopted the equipment of proprietary standing wave detection circuit is applied, compatible with the original acquiescence standing wave testing process of equipment.
As an embodiment, after equipment loads specified standing wave testing process, for improving the motility of standing wave flow process configuration, utilizing LMT order to arrange the standing wave testing process specified at Remote Radio Unit, its command format can be such that
lmtset0xa918=X
In formula, X value includes " 0 " (representing the standing wave testing process state of Remote Radio Unit acquiescence); " 1 " (represents the DSP standing wave detection state of Remote Radio Unit); " 2 " (represent the pure software standing wave detection state of Remote Radio Unit). Remote Radio Unit is in actual moving process, and equipment obtains in real time and arranges instruction, and starts according to arranging instruction or switch to the standing wave testing process specified.
When input arranges instruction for " 0 ", start the standing wave testing process of acquiescence.
When input arranges instruction for " 1 ", start DSP standing wave testing process.
When input arranges instruction for " 2 ", start pure software standing wave testing process.
It addition, by the combination inputting " 0 ", " 1 ", " 2 ", it is possible to start multiple standing wave testing process, the standing wave value simultaneously calculated; Such as, when input arranges instruction for " 0 " " 1 ", start standing wave testing process and the DSP standing wave testing process of acquiescence simultaneously.
In one embodiment, in order to ensure to arrange the accuracy of standing wave detection instruction, also include input is arranged the step that order parameter is filtered before step S20, specifically, judging, instruction is set whether accurate, if it is not, the abnormality processing mode then starting setting switches standing wave testing process.
Such as, not supporting DSP standing wave testing process such as equipment, input arranges command request equipment and enters DSP standing wave testing process, then by utilizing the exception handling automatic switchover standing wave testing process set, as equipment switches to pure software standing wave testing process.
In one embodiment, correctness and the safety of the standing wave testing process preset is run in order to strengthen equipment, perform the process of standing wave detection also includes, in step S20, the step that alarm is rebuild, concrete, when there is the alarm relevant with each standing wave, the equipment controlling Remote Radio Unit closes radio-frequency (RF) switch, suspend standing wave testing process simultaneously, and alarm normal in radiofrequency signal is then turned on standing wave testing process after releasing, and recovers the standing wave detection function of Remote Radio Unit.
Step S30: the second detected value of the first detected value of the first standing wave testing process detection or the detection of the second standing wave testing process is updated to standing wave Value Data storehouse.
In one embodiment, in order to obtain relatively reasonable standing wave detected value reporting base station, it is ensured that equipment operates in normal state, when equipment operates in the standing wave testing process of various modes, step S30 also includes the checking process to standing wave detected value, specifically:
Judge by the difference of different time points between the first detected value and second detected value of the second standing wave testing process detection of the first standing wave testing process detection, when described difference exceedes setting thresholding, described first detected value and its immediate detected value of historical record value (can be the detected value of a upper time point record) are compared, compare the second detected value selects with its immediate detected value of historical record value, owing to standing wave value and nearest historical record value are close, when producing abnormal due to standing wave detection, then change greatly before and after standing wave value, and it is comparatively accurate to change less standing wave value, it is updated to standing wave Value Data storehouse by changing less standing wave value.
Above-mentioned steps is analyzed by the standing wave detected value that different standing wave testing processes are obtained, relatively reasonable detected value is selected to report application, the standing wave testing process avoiding a kind of pattern produces unusual condition and affects the standing wave testing result of equipment, multiple standing wave testing process, the effect of complementation can be reached, improve the safety of equipment standing wave detection.
Meanwhile, equipment start-up mode can also carry out standing wave detection simultaneously, such as DSP standing wave testing process and pure software standing wave testing process. in equipment running process, by arranging corresponding self-check program, the identical time point of the more different standing wave testing processes of timing or the difference of adjacent time point standing wave, if it find that difference is excessive, more correct standing wave value is then selected to report after correlated judgment, and standing wave testing process is automatically switched to the more accurate standing wave testing process of detection to carry out standing wave detection, and point out standing wave testing process to automatically switch at equipment output port, thus realizing in different application demands, automatically select most suitable standing wave testing process, obtain standing wave detected value more accurately, improve the standing wave accuracy of detection of equipment.
The detailed description of the invention standing wave of the present invention being detected system below in conjunction with accompanying drawing is described in detail.
Fig. 2 illustrates the standing wave detection system structure schematic diagram of an embodiment, including:
Testing process presetting module, for presetting the first standing wave testing process and the second standing wave testing process at Remote Radio Unit;
Standing wave detection module, for according to arrange instruction select the first standing wave testing process and/or the second standing wave testing process to Remote Radio Unit perform standing wave detection;
Detected value is new module more, for the first detected value of the first standing wave testing process detection or the second detected value of the second standing wave testing process detection are updated to standing wave Value Data storehouse.
In one embodiment, described first standing wave testing process is the DSP standing wave testing process realized based on dsp chip, and described second standing wave testing process is pure software standing wave testing process.
In one embodiment, described pure software standing wave testing process includes: obtain reflection coefficient by described dsp chip, utilizes the application program being arranged on system CPU and calculates standing wave value according to described reflection coefficient.
In one embodiment, also include before standing wave detection module: acquiescence flow startup module, for the acquiescence standing wave testing process of starting device; Wherein, described acquiescence standing wave testing process includes the testing process that adopts proprietary standing wave detection circuit to perform.
In one embodiment, described detected value more new module is further used for: judge by the difference of identical time point or adjacent time point between the first detected value and second detected value of the second standing wave testing process detection of the first standing wave testing process detection; When described difference exceedes setting thresholding, select to be updated to standing wave Value Data storehouse with its immediate detected value of historical record value from described first detected value and the second detected value.
In one embodiment, also include before standing wave detection module: instruction judge module is set, instruction is set for judgement whether accurate, if it is not, the abnormality processing mode then starting setting switches standing wave testing process.
In one embodiment, described standing wave detection module is additionally operable in the process performing standing wave detection: when producing standing wave alarm, suspends standing wave testing process, is then turned on standing wave testing process after alarm releases.
The standing wave detection system of the present invention and the method for detecting standing wave one_to_one corresponding of the present invention, technical characteristic and beneficial effect thereof that the embodiment at above-mentioned method for detecting standing wave is set forth all detect the embodiment of system suitable in standing wave, do not repeat them here.
In sum, the method for detecting standing wave of the present invention and system have following obvious beneficial effect:
(1) by the variation of standing wave testing process, the versatility of standing wave detection mode in Remote Radio Unit is expanded, it is possible to the compatible detection mode supporting proprietary standing wave detection circuit, it is also possible to support the detection of DSP standing wave detection mode, pure software standing wave.
(2) by arranging instruction, the standing wave testing process that self-adapting operation is specified, meet the demand that engineering site is implemented, improve the adaptivity of equipment, most suitable standing wave testing process can be automatically selected, it is thus achieved that standing wave detected value more accurately, improve the standing wave accuracy of detection of equipment.
(3) the standing wave detection of various modes, can also automatically detect standing wave detection abnormity, can also be used for equipment in abnormal cases, complement each other, the standing wave testing process that self-adapting start is suitable, such as, when DSP standing wave testing process exception, start the detection of pure software standing wave and replace it the standing wave testing process of front operation exception. Thus improve stability and the safety of equipment.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention. It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention. Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (12)
1. a method for detecting standing wave, it is characterised in that comprise the steps:
The first standing wave testing process and the second standing wave testing process is preset at Remote Radio Unit;
Select the first standing wave testing process and/or the second standing wave testing process that Remote Radio Unit performs standing wave detection according to arranging instruction;
Second detected value of the first detected value of the first standing wave testing process detection or the detection of the second standing wave testing process is updated to standing wave Value Data storehouse; Specifically include: judge by the difference of identical time point or adjacent time point between the first detected value and second detected value of the second standing wave testing process detection of the first standing wave testing process detection; When described difference exceedes setting thresholding, select to be updated to standing wave Value Data storehouse with its immediate detected value of historical record value from described first detected value and the second detected value.
2. method for detecting standing wave according to claim 1, it is characterised in that described first standing wave testing process is the DSP standing wave testing process realized based on dsp chip, and described second standing wave testing process is pure software standing wave testing process.
3. method for detecting standing wave according to claim 2, it is characterised in that described pure software standing wave testing process includes:
Obtain reflection coefficient by described dsp chip, utilize the application program being arranged on system CPU and calculate standing wave value according to described reflection coefficient.
4. method for detecting standing wave according to claim 1, it is characterised in that according to arrange instruction select the first standing wave testing process and/or the second standing wave testing process to Remote Radio Unit perform standing wave detection step before also include:
The acquiescence standing wave testing process of starting device; Wherein, described acquiescence standing wave testing process includes the testing process that adopts proprietary standing wave detection circuit to perform.
5. method for detecting standing wave according to claim 1, it is characterised in that according to arrange instruction select the first standing wave testing process and/or the second standing wave testing process to Remote Radio Unit perform standing wave detection step before also include:
Judging, instruction is set whether accurate, if it is not, the abnormality processing mode then starting setting switches standing wave testing process.
6. method for detecting standing wave according to claim 1, it is characterised in that also include in the process performing standing wave detection: when producing standing wave alarm, suspend standing wave testing process, be then turned on standing wave testing process after alarm releases.
7. a standing wave detection system, it is characterised in that including:
Testing process presetting module, for presetting the first standing wave testing process and the second standing wave testing process at Remote Radio Unit;
Standing wave detection module, for according to arrange instruction select the first standing wave testing process and/or the second standing wave testing process to Remote Radio Unit perform standing wave detection;
Detected value is new module more, for the first detected value of the first standing wave testing process detection or the second detected value of the second standing wave testing process detection are updated to standing wave Value Data storehouse; Specifically include: judge by the difference of identical time point or adjacent time point between the first detected value and second detected value of the second standing wave testing process detection of the first standing wave testing process detection; When described difference exceedes setting thresholding, select to be updated to standing wave Value Data storehouse with its immediate detected value of historical record value from described first detected value and the second detected value.
8. standing wave according to claim 7 detection system, it is characterised in that described first standing wave testing process is the DSP standing wave testing process realized based on dsp chip, and described second standing wave testing process is pure software standing wave testing process.
9. standing wave according to claim 8 detection system, it is characterised in that described pure software standing wave testing process includes:
Obtain reflection coefficient by described dsp chip, utilize the application program being arranged on system CPU and calculate standing wave value according to described reflection coefficient.
10. standing wave according to claim 7 detection system, it is characterised in that also include before standing wave detection module:
Acquiescence flow startup module, for the acquiescence standing wave testing process of starting device; Wherein, described acquiescence standing wave testing process includes the testing process that adopts proprietary standing wave detection circuit to perform.
11. standing wave according to claim 7 detection system, it is characterised in that also include before standing wave detection module:
Instruction judge module is set, instruction is set for judgement whether accurate, if it is not, the abnormality processing mode then starting setting switches standing wave testing process.
12. standing wave according to claim 7 detection system, it is characterised in that described standing wave detection module is additionally operable in the process performing standing wave detection:
When producing standing wave alarm, suspend standing wave testing process, after alarm releases, be then turned on standing wave testing process.
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| CN201310024405.4A CN103944650B (en) | 2013-01-22 | 2013-01-22 | Method for detecting standing wave and system |
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| CN1633197A (en) * | 2003-12-24 | 2005-06-29 | 中兴通讯股份有限公司 | An apparatus and method for implementing base station antenna standing-wave ratio alarm |
| CN201601678U (en) * | 2010-03-08 | 2010-10-06 | 和记奥普泰通信技术有限公司 | Service node interface index test system |
| CN102223189A (en) * | 2011-03-14 | 2011-10-19 | 京信通信系统（广州）有限公司 | Detection control method for multiband DPD (Digital Pre-Distortion), grain and standing wave |
| CN102291192A (en) * | 2011-09-13 | 2011-12-21 | 中兴通讯股份有限公司 | Method and device for acquiring standing-wave ratio |
| CN202444494U (en) * | 2012-02-13 | 2012-09-19 | 华为技术有限公司 | Antenna testing system |
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2013
- 2013-01-22 CN CN201310024405.4A patent/CN103944650B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1633197A (en) * | 2003-12-24 | 2005-06-29 | 中兴通讯股份有限公司 | An apparatus and method for implementing base station antenna standing-wave ratio alarm |
| CN201601678U (en) * | 2010-03-08 | 2010-10-06 | 和记奥普泰通信技术有限公司 | Service node interface index test system |
| CN102223189A (en) * | 2011-03-14 | 2011-10-19 | 京信通信系统（广州）有限公司 | Detection control method for multiband DPD (Digital Pre-Distortion), grain and standing wave |
| CN102291192A (en) * | 2011-09-13 | 2011-12-21 | 中兴通讯股份有限公司 | Method and device for acquiring standing-wave ratio |
| CN202444494U (en) * | 2012-02-13 | 2012-09-19 | 华为技术有限公司 | Antenna testing system |
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Address after: 510663 No. 10 Shenzhou Road, Science City, Luogang District, Guangzhou City, Guangdong Province Patentee after: Jingxin Network System Co.,Ltd. Address before: 510663 No. 10 Shenzhou Road, Science City, Luogang District, Guangzhou City, Guangdong Province Patentee before: COMBA TELECOM SYSTEMS (CHINA) Ltd. |
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Granted publication date: 20160615 |