CN101860891A - Method for testing standing-wave ratio, base station and network management system - Google Patents
Method for testing standing-wave ratio, base station and network management system Download PDFInfo
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- CN101860891A CN101860891A CN 201010187232 CN201010187232A CN101860891A CN 101860891 A CN101860891 A CN 101860891A CN 201010187232 CN201010187232 CN 201010187232 CN 201010187232 A CN201010187232 A CN 201010187232A CN 101860891 A CN101860891 A CN 101860891A
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Abstract
The invention provides a method for testing a standing-wave ratio, a base station and a network management system, belongs to the field of radio communication and can solve the problem of low testing efficiency of the conventional method for testing the standing-wave ratio. The method for testing the standing-wave ratio of the invention comprises the step that the network management system remotely sends a standing-wave ratio command test to the base station through a network and receives a standing-wave ratio test result fed back remotely by the base station through the network; or the method for testing the standing-wave ratio can also comprise the step that the base station receives the standing-wave ratio test command, which is sent remotely through the network, tests the standing-wave ratio according to the command and remotely feeds back the standing-wave test result by the network. The base station of the invention comprises a signal receiving unit, a testing unit and a signal sending unit. The network management system of the invention comprises a sending unit and a receiving unit. The method for testing the standing-wave ratio, the base station and the network management system can be used for testing the standing-wave ratio of GSM, WCDMA, CDMA, WiMAX, LTE and the like.
Description
Technical field
The present invention relates to a kind of method for testing standing-wave ratio, base station, network management system, relate in particular to the method for testing standing-wave ratio, base station, the network management system that are used for GSM, WCDMA, CDMA, WiMAX, LTE etc.
Background technology
Standing-wave ratio claims voltage standing wave ratio (VSWR, SWR, Voltage Standing WaveRatio) again.In radio communication, if the impedance of the antenna of base station and feeder line does not match or the impedance of antenna and sender does not match, then Fa She high-frequency energy will some be reflected and turn back, and disturb with the high-frequency energy that advances and to converge the generation standing wave, the adjacent voltage max of this standing wave and the ratio of minimum value are exactly standing-wave ratio; If standing-wave ratio is excessive, then can shorten communication distance, even may return transmitter power amplifier part because of reflection power and burn out power tube, influence proper communication.
So the standing-wave ratio test is important in radio communication, the standing-wave ratio test comprises following several situation usually:
1,, is used for acceptance of engineering quality at the initial stage of building a station;
2, when the whole network is paid, be used for acceptance of engineering quality;
3, the regular maintenance stage, be used for patrolling and examining to equipment.
Existing method for testing standing-wave ratio is mainly operating personnel and enters the station the base station is operated, extract the power (backward power) of the reflected signal of base station antenna feeder when being in the state of work in the base station, and compare and calculate standing-wave ratio with the power that transmits (forward power).
At least there are the following problems but the inventor finds existing method for testing standing-wave ratio: standing-wave ratio test need operating personnel are entered the station and are operated, and its testing efficiency is very low.
Summary of the invention
Embodiments of the invention provide a kind of method for testing standing-wave ratio, its testing efficiency height.
For achieving the above object, the method for testing standing-wave ratio of embodiments of the invention adopts following technical scheme:
A kind of method for testing standing-wave ratio comprises:
The base station is by the order of network reception by the long-range test standing-wave ratio of sending of network management system;
Standing-wave ratio is tested according to the order of described test standing-wave ratio in described base station, and the standing-wave ratio test result is fed back to described network management system by network remote.
Another kind of method for testing standing-wave ratio comprises:
Network management system is by the long-range order of sending the test standing-wave ratio of network to base site;
Described network management system is by the standing-wave ratio test result of network reception by the long-range feedback in described base station.
Because the test of the standing-wave ratio of present embodiment does not need operating personnel to enter the station, so its testing efficiency is very high by network remote control.
Embodiments of the invention also provide a kind of base station, and it can high efficiency test standing-wave ratio.
For achieving the above object, following technical scheme is adopted in the base station of embodiments of the invention:
A kind of base station comprises:
Signal receiving unit is used for by the order of network reception by the long-range test standing-wave ratio of sending of network management system;
Test cell is used for the order test standing-wave ratio according to described test standing-wave ratio;
The signal transmitter unit is used for feeding back to described network management system by network with the standing-wave ratio test result is long-range.
Because the order of the test standing-wave ratio that the base station of present embodiment can send by the network receiving remote is also finished test voluntarily, afterwards again with the long-range feedback of test result, so can improve the testing efficiency of standing-wave ratio.
Embodiments of the invention also provide a kind of network management system, can be used for carrying out standing-wave ratio test efficiently.
For achieving the above object, the network management system of embodiments of the invention adopts following technical scheme:
A kind of network management system comprises:
Transmitting element is used for by the long-range order of sending the test standing-wave ratio of network to base site;
Receiving element is used for by the standing-wave ratio test result of network reception by the long-range feedback in described base station.
The network management system of present embodiment can send/receive the signal of relevant test standing-wave ratio by network remote, do not need personnel to enter the station, so can be used for carrying out standing-wave ratio test efficiently.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of the method for testing standing-wave ratio of the embodiment of the invention one;
Fig. 2 is the fate map of the method for testing standing-wave ratio of the embodiment of the invention two;
Fig. 3 carries out the concrete fate map of standing-wave ratio testing procedure for base station in the method for testing standing-wave ratio of the embodiment of the invention two;
Fig. 4 is the flow chart of the method for testing standing-wave ratio of the embodiment of the invention three;
Fig. 5 is the composition schematic diagram of the base station of the embodiment of the invention four;
Fig. 6 is the composition schematic diagram of another kind of base station of the present invention;
Fig. 7 is the composition schematic diagram of the network management system of the embodiment of the invention five;
Fig. 8 is the composition schematic diagram of another kind of network management system of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work belongs to the scope of protection of the invention.
The embodiment of the invention aims to provide a kind of method for testing standing-wave ratio, base station, network management system, can improve the testing efficiency of standing-wave ratio.
Embodiment one
As shown in Figure 1, the embodiment of the invention provides a kind of method for testing standing-wave ratio, comprising:
S10, base station are by the order of network reception by the long-range test standing-wave ratio of sending of network management system;
S11, described base station are tested standing-wave ratio according to the order of described test standing-wave ratio, and the standing-wave ratio test result are fed back to described network management system by network remote.
Because the method for testing standing-wave ratio of present embodiment is controlled by network remote, does not need operating personnel to enter the station, so its testing efficiency is very high, average efficiency promotes more than 10 times than existing method for testing standing-wave ratio; The shortening of testing time simultaneously also makes the professional affected time of normal talking significantly shorten; And because execute-in-place is simplified, so tester's requirement is reduced, human cost that test brings and equipment cost also significantly reduce.
Embodiment two
As shown in Figure 2, suppose that network management system is an Element Management System, the embodiment of the invention provides a kind of method for testing standing-wave ratio, and this method comprises:
Standing-wave ratio is tested according to the order of described test standing-wave ratio in step 3, base station.
Wherein, the base station specifically can comprise as shown in Figure 3 according to the step (step 3) of the order test standing-wave ratio of described test standing-wave ratio:
1) determines test parameter
After the base station control unit of base station receives the order of the test standing-wave ratio of being sent by Element Management System, determine parameters such as test signal frequency, test signal power, testing time, test channel number, these parameters are predeterminable in base station control unit, also can be imported by operating personnel in above-mentioned steps one; Wherein, test signal is preferably tone signal (being the single-frequency radiofrequency signal); The test signal frequency is preferably default test frequency, should default test frequency be to be arranged in advance in the base station, should (, radio frequency insert loss etc. through the calibration of power by default test frequency because connecting, the real output of base station may depart from nominal power, therefore need the carrier frequency power output of base station is calibrated near the nominal power output, accurate with guaranteed output, this process is the calibration of power), it can be stored in the software systems of base station control unit; Test signal power is preferably the maximum power that equipment allows; Testing time is preferably 10s; Test channel is the passage that operating personnel select in the step 1, and (RRU, Remote Radio Unit) is interference-free when once testing a passage because of the RF remote processing unit, and the result is accurate, so preferably carry out one by one will test a plurality of passage the time.
2) the current standing-wave ratio test of whether carrying out is detected in the base station
Enter the station as the people and to test or base station when testing automatically, the signal of standing-wave ratio test can be carried out in the base station, if carrying out the standing-wave ratio test, then return the signal of " test starts " and continue ongoing standing-wave ratio test to network management unit, if the current standing-wave ratio of not carrying out is tested, then carry out next step.
Above-mentioned steps 2) be optionally, in some cases, for example initial testing the time, the direct execution in step 3 of this step also can be crossed in the base station).
The legitimacy of 3) validation test parameter
Test parameter comprises test signal frequency, test signal power, testing time, test channel number etc., the checking content can comprise whether the test signal frequency belongs to the scope of test channel, whether the test signal performance number is in the scope that equipment allows, whether the testing time is reasonable, and whether the base station has test channel number pairing passage etc.; The scope of these parameters can be stored in the base station control unit in advance, is illegally if parameter exceeds predetermined range, can send warning or reset parameter etc. voluntarily.
Above-mentioned steps 3) be optionally, promptly can to give tacit consent to above-mentioned test parameter all be legal in the base station.
4) detect test channel whether normal talk business is being provided
Whether open by power amplifier and to judge whether test channel exists normal talk business, if power amplifier is opened, then there is normal talk business in expression, and the frequency of current talk business is removed in the base station, and is this channel arrangement test signal frequency (being generally default test frequency); If power amplifier is not opened, then direct configuration testing signal frequency point (being generally default test frequency).
Above-mentioned steps 4) be optionally, for example when initially opening the station, the base station can directly configure the test signal frequency.
Obviously, only otherwise influence the realization that standing-wave ratio is tested, above-mentioned steps 1)-4 the order) can be carried out multiple conversion, for example, can detect current whether carrying out earlier and determine test parameter again after the standing-wave ratio test, or can verify to detect again after the legitimacy of test parameter currently whether carrying out the standing-wave ratio test earlier, or can detect test channel earlier whether certificate parameter legitimacy more is being provided after the normal talk business.
5) test channel begins according to the test parameter emissioning testing signal
The test channel of base station begins according to the test parameter emissioning testing signal, and it is preferably at default test frequency and begins to launch tone signal with maximum power, and the pattern of tone signal is a single carrier.This test signal is exclusively used in test, need not specially be received.Use the test signal of this method can reduce the influence of extraneous factor and equipment to greatest extent, guarantee the accuracy of test test result.
6) send the disabled signal of channel resource state
Behind the beginning emissioning testing signal, the RF remote processing unit is to baseband processing unit (BBU, Base Band Unit) report the channel resource state unavailable, the baseband processing unit sub-district is set to unavailable, no longer accept normal talk business to guarantee the base station, can prevent each interchannel phase mutual interference like this, guarantee the accurate of test result; For Multi-Mode Base Station, the test channel resource status need be reported to whole baseband processing unit (for example, the baseband processing unit of the baseband processing unit of GMS and WCDMA).
Above-mentioned steps 6) is optionally, promptly also can not report the channel resource state unavailable, and when test, still allow other passage of base station to accept normal talk business (this moment, test accuracy was poor slightly, but littler to the influence of regular traffic).
7) start the standing-wave ratio test
Start the standing-wave ratio test, open power amplifier, relevant devices such as RF remote processing unit enter test mode; Wherein standing-wave ratio test can postpone to restart in 3 seconds after test signal begins emission, to guarantee stablizing of described test signal.
8) after starting the standing-wave ratio test, statistics backward power and forward power
Be preferably average backward power and average forward power in the statistical test time, and (just from beginning emissioning testing signal after coextensive slow 5 seconds) begins to add up performance number more preferably to postpone 2 seconds again after starting the standing-wave ratio test, further to guarantee the stable of test result; Once current backward power and the forward power of wherein every 100ms statistics, and with the statistics performance number be stored in the base station control unit, finish up to the testing time, base station control unit is obtained the mean value of the many groups power that records in the testing time afterwards, as the average backward power in the testing time and the result of forward power; For example, the testing time is 10 seconds, then obtains 101 backward power values and 101 forward power values in the testing time altogether, and the mean value of all backward power values is average backward power, and the mean value of all forward power values is average forward power; Obviously, the mode of averaging after this repeatedly statistics can improve test accuracy.
9) stop the reverse and forward power of statistics
After testing time arrived, EOT stopped the reverse and forward power of statistics, stops emissioning testing signal, made test channel recover the frequency of regular traffic (i.e. the operation frequency of the talk business before the test beginning), pass power amplifier.
Optionally, if reported the channel resource state unavailable to baseband processing unit before, then report the channel resource state to use to baseband processing unit again, the baseband processing unit sub-district is set to available, and the base station begins to continue to accept normal talk business again; If Multi-Mode Base Station, then the channel resource state need report whole baseband processing units.
10) calculate standing-wave ratio according to backward power and forward power
Standing-wave ratio can be calculated by following formula:
Standing-wave ratio=(average forward power
1/2+ average backward power
1/2Average forward power of)/(
1/2-average backward power
1/2).
Obviously, only otherwise the realization of influence test, those skilled in the art also can carry out many variations to the method for testing standing-wave ratio of the foregoing description, for example, if detect the current standing-wave ratio test carried out, also can stop current ongoing test and carry out the test of present embodiment.
Embodiment three
As shown in Figure 4, the embodiment of the invention provides a kind of method for testing standing-wave ratio, comprising:
S20, network management system are by the long-range order of sending the test standing-wave ratio of network to base site;
S21, described network management system were connected the standing-wave ratio test result of network reception by the long-range feedback in described base station.
Because the method for testing standing-wave ratio of present embodiment realizes by network remote control, do not need personnel's operation of entering the station, so its testing efficiency is very high.
In the above-described embodiments, can be operating personnel by network management system to the long-range order of sending the test standing-wave ratio in base station, command context can comprise the basic station number tested and the channel number in the base station, also can comprise the parameter of using in the test; Optionally, network management system can be to the long-range order of sending the test standing-wave ratio in a plurality of base stations, and receives standing-wave ratio test result by the long-range feedback in a plurality of described base stations by network.Because the method for testing standing-wave ratio of the present embodiment a plurality of passages to a plurality of base stations simultaneously issues test command, after can testing simultaneously, a plurality of base stations again the result is unified the long-range network management system that feeds back to, so compare with traditional personnel method of testing one by one that enters the station, its testing efficiency has extremely significantly and promotes.
Embodiment four
As shown in Figure 5, the embodiment of the invention provides a kind of base station 6, comprising:
Signal receiving unit 7 is used for by the order of network reception by the long-range test standing-wave ratio of sending of network management system;
Because the order of the test standing-wave ratio that the base station of present embodiment can send by the network receiving remote is also finished test voluntarily, afterwards again with the long-range feedback of test result, so can improve the testing efficiency of standing-wave ratio.
Above-mentioned test cell 9 specifically can comprise:
Determining unit is used for determining test parameter;
Transmitter unit is used for according to described test parameter emissioning testing signal;
Start unit is used to start the standing-wave ratio test;
Statistic unit is used for adding up the backward power and the forward power of described test signal after described start unit starts the standing-wave ratio test;
Computing unit is used for calculating standing-wave ratio according to the backward power and the forward power of described statistic unit statistics.
As shown in Figure 6, alternatively, base station 6 also can comprise:
Embodiment five
As shown in Figure 7, the embodiment of the invention provides a kind of network management system 1, comprising:
Transmitting element 2 is used for by the long-range order of sending the test standing-wave ratio of network to base site;
Receiving element 3 is used for by the standing-wave ratio test result of network reception by the long-range feedback in described base station.
The network management system of present embodiment can send/receive the signal of relevant test standing-wave ratio by network remote, do not need personnel to enter the station, so can be used for carrying out standing-wave ratio test efficiently.
As shown in Figure 8, described network management system also can comprise:
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (19)
1. a method for testing standing-wave ratio is characterized in that, comprising:
The base station is by the order of network reception by the long-range test standing-wave ratio of sending of network management system;
Standing-wave ratio is tested according to the order of described test standing-wave ratio in described base station, and the standing-wave ratio test result is fed back to described network management system by network remote.
2. method for testing standing-wave ratio according to claim 1 is characterized in that, described base station comprises according to the order test standing-wave ratio of described test standing-wave ratio:
Determine test parameter;
Described base station begins according to described test parameter emissioning testing signal;
Start the standing-wave ratio test;
After starting the standing-wave ratio test, add up the backward power and the forward power of described test signal;
Calculate standing-wave ratio according to described backward power and forward power.
3. method for testing standing-wave ratio according to claim 2 is characterized in that described test signal is specially tone signal.
4. method for testing standing-wave ratio according to claim 2 is characterized in that, described base station begins to be specially at fixing frequency with the maximum power transmission test signal according to described test parameter emissioning testing signal.
5. method for testing standing-wave ratio according to claim 2 is characterized in that, after described base station begins according to described test parameter emissioning testing signal, postpones first special time and restarts the standing-wave ratio test.
6. method for testing standing-wave ratio according to claim 5 is characterized in that, after described startup standing-wave ratio test, postpones backward power and forward power that second special time begins to add up described test signal again.
7. method for testing standing-wave ratio according to claim 2 is characterized in that,
The backward power of the described test signal of described statistics and forward power are specially the average backward power and the average forward power of the described test signal of statistics;
Describedly calculate standing-wave ratio according to described backward power and forward power and be specially according to described average backward power and average forward power and calculate standing-wave ratio, concrete computing formula is as follows:
Standing-wave ratio=(average forward power
1/2+ average backward power
1/2Average forward power of)/(
1/2-average backward power
1/2).
8. method for testing standing-wave ratio according to claim 1 and 2, it is characterized in that, before the order test standing-wave ratio of described base station according to described test standing-wave ratio, also comprise: detect the current standing-wave ratio test of whether carrying out, if, then continue ongoing standing-wave ratio test, or stop ongoing standing-wave ratio test and test standing-wave ratio according to the order of described test standing-wave ratio; If not, then test standing-wave ratio according to the order of described test standing-wave ratio.
9. method for testing standing-wave ratio according to claim 2 is characterized in that, also comprises after described definite test parameter:
Detect the current standing-wave ratio test whether carried out, if then continue ongoing standing-wave ratio test, or stop ongoing standing-wave ratio test and carry out described base station beginning step according to described test parameter emissioning testing signal; If not, then described base station begins according to described test parameter emissioning testing signal.
10. method for testing standing-wave ratio according to claim 2, it is characterized in that, before described base station begins according to described test parameter emissioning testing signal, also comprise: whether the passage that detection will be tested is providing talk business, if, then remove current talk business frequency, and be the frequency of described channel arrangement test signal special use; If not, then directly be the frequency of described channel arrangement test signal special use.
11. method for testing standing-wave ratio according to claim 2 is characterized in that, between described definite test parameter and described base station begin according to described test parameter emissioning testing signal, also comprises: the legitimacy of validation test parameter.
12. method for testing standing-wave ratio according to claim 2 is characterized in that:
Before described startup standing-wave ratio test, also comprise: the baseband processing unit to described base station sends the disabled signal of channel resource, makes described base station no longer accept normal talk business;
After the backward power and forward power of the described test signal of described statistics, also comprise: the baseband processing unit to described base station sends the signal that channel resource can be used, and makes described base station can continue to accept normal talk business.
13. a method for testing standing-wave ratio is characterized in that, comprising:
Network management system is by the long-range order of sending the test standing-wave ratio of network to base site;
Described network management system is by the standing-wave ratio test result of network reception by the long-range feedback in described base station.
14. method for testing standing-wave ratio according to claim 13 is characterized in that,
Described network management system by network to base site long-range send the test standing-wave ratio order be specially: network management system by network to a plurality of base stations long-range send the test standing-wave ratio order:
Described network management system was connected the standing-wave ratio test result that network receives by the long-range feedback in described base station and is specially: described network management system was connected network and was received standing-wave ratio test result by the long-range feedback in a plurality of described base stations.
15. a base station is characterized in that, comprising:
Signal receiving unit is used for by the order of network reception by the long-range test standing-wave ratio of sending of network management system;
Test cell is used for the order test standing-wave ratio according to described test standing-wave ratio;
The signal transmitter unit is used for feeding back to described network management system by network with the standing-wave ratio test result is long-range.
16. base station according to claim 15 is characterized in that, also comprises:
Control unit is used to control described test cell test standing-wave ratio.
17. base station according to claim 15 is characterized in that, described test cell comprises:
Determining unit is used for determining test parameter;
Transmitter unit is used for according to described test parameter emissioning testing signal;
Start unit is used to start the standing-wave ratio test;
Statistic unit is used for adding up the backward power and the forward power of described test signal after described start unit starts the standing-wave ratio test;
Computing unit is used for calculating standing-wave ratio according to the backward power and the forward power of described statistic unit statistics.
18. a network management system is characterized in that, comprising:
Transmitting element is used for by the long-range order of sending the test standing-wave ratio of network to base site;
Receiving element is used for by the standing-wave ratio test result of network reception by the long-range feedback in described base station.
19. network management system according to claim 18 is characterized in that, also comprises:
Input unit is used to receive the instruction by the test standing-wave ratio of operating personnel's input, and described instruction is delivered to described transmitting element;
Output unit is used for receiving described standing-wave ratio test result from described receiving element, and with described standing-wave ratio test result output.
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| CN103179069A (en) * | 2011-12-26 | 2013-06-26 | 中国电信股份有限公司 | Method and system for transmitting information and method and system for receiving information |
| CN103178909A (en) * | 2011-12-26 | 2013-06-26 | 鼎桥通信技术有限公司 | Method and device for detecting faults of standing wave measuring circuit |
| CN106324352A (en) * | 2015-06-18 | 2017-01-11 | 国家新闻出版广电总局无线电台管理局 | Standing-wave ratio detection circuit of multi-frequency medium wave transmitter |
| CN107529183A (en) * | 2016-06-22 | 2017-12-29 | 中兴通讯股份有限公司 | A kind of detection method of communication apparatus, device and communication apparatus |
| CN111030760A (en) * | 2019-12-23 | 2020-04-17 | 京信通信系统（中国）有限公司 | Standing wave detection method and device |
| CN111130657A (en) * | 2019-12-31 | 2020-05-08 | 京信通信系统（中国）有限公司 | Standing-wave ratio detection method, device, electronic equipment and storage medium |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103179069A (en) * | 2011-12-26 | 2013-06-26 | 中国电信股份有限公司 | Method and system for transmitting information and method and system for receiving information |
| CN103178909A (en) * | 2011-12-26 | 2013-06-26 | 鼎桥通信技术有限公司 | Method and device for detecting faults of standing wave measuring circuit |
| CN103178909B (en) * | 2011-12-26 | 2015-07-29 | 鼎桥通信技术有限公司 | The fault detection method of standing wave measurement circuit and device |
| CN103179069B (en) * | 2011-12-26 | 2016-01-13 | 中国电信股份有限公司 | Method for sending information and system, message receiving method and system thereof |
| CN106324352A (en) * | 2015-06-18 | 2017-01-11 | 国家新闻出版广电总局无线电台管理局 | Standing-wave ratio detection circuit of multi-frequency medium wave transmitter |
| CN106324352B (en) * | 2015-06-18 | 2019-01-22 | 国家新闻出版广电总局无线电台管理局 | The standing-wave ratio detection circuit of multifrequency medium wave transmitter |
| CN107529183A (en) * | 2016-06-22 | 2017-12-29 | 中兴通讯股份有限公司 | A kind of detection method of communication apparatus, device and communication apparatus |
| CN107529183B (en) * | 2016-06-22 | 2022-03-25 | 中兴通讯股份有限公司 | Communication equipment detection method and device and communication equipment |
| CN111030760A (en) * | 2019-12-23 | 2020-04-17 | 京信通信系统（中国）有限公司 | Standing wave detection method and device |
| CN111030760B (en) * | 2019-12-23 | 2022-04-22 | 京信网络系统股份有限公司 | Standing wave detection method and device |
| CN111130657A (en) * | 2019-12-31 | 2020-05-08 | 京信通信系统（中国）有限公司 | Standing-wave ratio detection method, device, electronic equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101860891B (en) | 2012-12-12 |
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