CN101222739A - Method, device and base station for standing wave detection - Google Patents
Method, device and base station for standing wave detection Download PDFInfo
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- CN101222739A CN101222739A CNA2008100062163A CN200810006216A CN101222739A CN 101222739 A CN101222739 A CN 101222739A CN A2008100062163 A CNA2008100062163 A CN A2008100062163A CN 200810006216 A CN200810006216 A CN 200810006216A CN 101222739 A CN101222739 A CN 101222739A
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- standing wave
- time slot
- carrier frequency
- detects
- takies
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/04—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant in circuits having distributed constants, e.g. having very long conductors or involving high frequencies
- G01R27/06—Measuring reflection coefficients; Measuring standing-wave ratio
Abstract
The embodiment of the invention discloses a standing wave detection method, which comprises the following steps: obtaining a situation of current carrier frequency occupancy time slot and identifying the time slot occupied by a single carrier frequency; carrying out standing wave detection according to the situation of single carrier frequency occupancy time slot. The embodiment of the invention obtains the situation of current carrier frequency occupancy time slot and carries out standing wave detection according to the situation of single carrier frequency occupancy time slot, thereby avoiding detecting beating signals, improving the precision and accuracy of standing wave detection and also reducing the realization complexity of a soft hardware project.
Description
Technical field
The present invention relates to communication technical field, relate in particular to method, device and base station that a kind of standing wave detects.
Background technology
BTS in the mobile communications network (Base Transceiver Station, base transceiver station) realizes and MS (Mobile Station, travelling carriage) the air interface function between (following abbreviation is eated dishes without rice or wine) is eated dishes without rice or wine by realize communicating by letter between BTS and MS in the radiofrequency signal of spatial transmission.The radiofrequency signal that BTS transmits and receives all needs to be undertaken by base station antenna feeder system, and antenna-feedback system mainly comprises feeder line and antenna, and the radiofrequency signal of BTS emission is transferred to antenna by feeder line, again by a day alignment space radiation; Antenna receives the radiofrequency signal that MS is radiated the space, is transferred to BTS by feeder line again.So just realized transmitting and receiving of BTS radiofrequency signal.The performance of antenna-feedback system itself with and with the quality of BTS connection status, all can directly influence the performance of eating dishes without rice or wine of BTS.BTS is to the detection of the detection of antenna feeder system performance and itself and antenna-feedback system connection status, generally detect and realize by antenna-feedback system being carried out standing wave, so standing wave alarm detection technology is one of key technology of BTS.
The BTS antenna port is the interface that BTS is connected with antenna-feedback system, it is by the forward direction that detects the BTS antenna port, the amplitude of reverse signal that standing wave detects, again the amplitude detection value of described forward direction, reverse signal is carried out certain calculation, obtain the standing-wave ratio of antenna-feedback system.When standing-wave ratio surpasses certain thresholding, produce the standing wave alarm, the expression antenna feeder system performance descend or the connection status of itself and BTS bad.In such process, to the amplitude detection of BTS radiofrequency signal, be called for short detection, whether standing-wave ratio is detected accurate, and decisive influence is arranged.
In the prior art, BTS uses normal downstream signal to launch to antenna-feedback system as detectable signal, after consequent forward direction, reverse signal process detection and the certain computing, obtains the standing-wave ratio of antenna-feedback system.As shown in Figure 1, when BTS carries out service signal when transmission, this BTS is to antenna-feedback system transmitting downstream signal, a part of forward signal of forward coupler 11 couplings, and this part forward signal is delivered to forward direction detection unit 13 carry out detection; The reverse signal that reverse coupler 12 coupling unit antenna-feedback systems reflect to form, and this part reverse signal is delivered to reverse detection unit 14 carry out detection, then forward direction detection unit 13, oppositely detection unit 14 respectively with the forward direction rectified signal and oppositely rectified signal deliver to rectified signal and handle with arithmetic element 15 and carry out calculation process, obtain the standing-wave ratio of antenna-feedback system.Wherein, the BTS downstream signal may be two carrier waves or more multicarrier close the road signal, overloading is closed the road frequently and is formed Beat Signal, there is very great fluctuation process in the amplitude of Beat Signal on time domain, thereby make the average power or the peak power that detect downstream signal accurately become difficult, cause the SWR (Standing Wave Ratio, standing-wave ratio) of antenna-feedback system to detect inaccurate.
In realizing process of the present invention, the inventor finds that there is following problem at least in prior art:
When descending signal be multicarrier close the road signal time, the amplitude that its multi-carrier frequency signals closes the Beat Signal that the road forms fluctuate bigger on time domain, therefore the time slot that frequently transmits simultaneously in the overloading of closing the road carry out standing wave detect the SWR that causes antenna-feedback system easily detect forbidden or increase equipment in the expense aspect hardware, the software to handle this Beat Signal.
Summary of the invention
The precision that standing wave detects to avoid that Beat Signal is carried out detection, is improved in method, device and base station that the embodiment of the invention provides a kind of standing wave to detect.
For achieving the above object, the method that the embodiment of the invention provides a kind of standing wave to detect on the one hand may further comprise the steps: obtain the situation that current carrier frequency takies time slot, and the time slot that takies of identification form carrier frequency; The situation that takies time slot according to described single carrier frequency is carried out the standing wave detection.
On the other hand, the device that the embodiment of the invention also provides a kind of standing wave to detect, comprising: time slot situation acquiring unit is used to obtain the situation that current carrier frequency takies time slot; The standing wave detecting unit is used for taking the time slot that the situation identification form carrier frequency of time slot takies according to described current carrier frequency, and carries out standing wave according to the situation that described single carrier frequency takies time slot and detect.
Again on the one hand, the embodiment of the invention also provides a kind of base station, comprises the device that a kind of standing wave detects, and described base station comprises that all realize the eat dishes without rice or wine equipment of function and performance of mobile communication.
Compared with prior art, the embodiment of the invention has the following advantages: pass through the embodiment of the invention, obtain the situation that current carrier frequency takies time slot, and the time slot that takies of identification form carrier frequency, the situation that takies time slot according to single carrier frequency is carried out the standing wave detection, avoided Beat Signal is carried out detection, improved accuracy and precision that standing wave detects, reduced the implementation complexity of software and hardware scheme.
Description of drawings
Fig. 1 is that the standing wave of prior art scheme detects the realization block diagram;
Fig. 2 takies the situation schematic diagram for two carrier time slots of the embodiment of the invention one;
Fig. 3 is the flow chart of the embodiment of the invention one;
Fig. 4 is the flow chart of the embodiment of the invention two;
The structure drawing of device that Fig. 5 detects for embodiment of the invention standing wave.
Embodiment
The method that the embodiment of the invention provides a kind of standing wave to detect, utilize the characteristics of time division multiplexing system, avoiding carrying out standing wave at the time slot that a plurality of carrier frequency that close the road transmit simultaneously detects, only the time slot that takies at single carrier frequency carries out the standing wave detection, thereby solved that the time slot that takies frequently in the overloading of closing the road carries out that standing wave detects and the standing wave that causes detects inaccurate problem, improve precision and accuracy that standing wave detects, also reduced the implementation complexity of software and hardware scheme.The embodiment of the invention is applicable to all time division multiplex systems, for example: GSM (Global System For Mobile Communication, global system for mobile communications) system.
As shown in Figure 2, the flow chart for the embodiment of the invention one specifically may further comprise the steps:
Step S201 obtains the situation that current carrier frequency takies time slot, and the time slot that takies of identification form carrier frequency.The embodiment of the invention is that example describes with the situation that two carrier frequency close the road.When two carrier frequency closed the road, gsm system adopted the time division multiplexing system, and a carrier frequency is divided into 8 time slots on time domain, and each time slot is represented a channel.When channel has business to take, represent that this time slot B TS transmits, when this channel idle, represent that corresponding time slot B TS does not transmit.The occupancy of management control unit identification current time slots two carrier frequency in the BTS, recognition result as shown in Figure 3, time slot 2,3,7 has only single carrier frequency to take; 0,4,6, two carrier frequency of time slot all take; 1,5, two carrier frequency of time slot all do not take, and do not transmit.The embodiment of the invention is that example describes with the gsm system, but is not limited to gsm system.In addition, above-mentioned BTS comprises that all can realize the eat dishes without rice or wine equipment of function and performance of mobile communication.BTS in the embodiment of the invention is specifically as follows little base station, RRU (Remote Radio Unit, remote radio unit (RRU)) or RFU (Radio FilterUnit, wireless filter unit) etc.
Step S202, the situation that takies time slot according to single carrier frequency is carried out the standing wave detection.Specifically can be to carry out standing wave at the time slot that single carrier frequency takies to detect.Above-mentioned standing wave detects, and can be in the process of base station work, carries out continual standing wave all the time and detects, and also can be to select a time period, or carry out standing wave periodically in a period of time and detect.In macro base station, this standing wave measuring ability is finished by the standing wave detecting unit usually, because the standing wave detecting unit is not understood the configuration information of carrier frequency usually, do not know to transmit and whether close the road and form by single carrier frequency, two or more carrier frequency, therefore the standing wave detecting unit can't independently make a choice to the time slot that is used for the standing wave detection, need understand the time slot that standing wave detects by the management control unit in BTS, the standing wave detecting unit carries out the standing wave detection according to the management control unit in the BTS to the recognition result that single carrier frequency takies time slot more then.In embodiments of the present invention, it is time slot 2,3,7 that the management control unit in the BTS identifies the time slot that single carrier frequency takies, and the standing wave detecting unit carries out standing wave at time slot 2,3,7 and detects and obtain final testing result then.
In little base station or RRU, RFU, because management control unit, carrier frequency unit and the unification of standing wave detecting unit, the configuration relative fixed, so time slot is selected and the matching problem of standing wave detection is handled easily, the standing wave testing process can be unified to be finished by management control unit.
In embodiments of the present invention, overloading takies time slot frequently and no carrier frequency takies time slot, all is not useable for standing wave and detects.Because the characteristics of gsm system time division multiplexing system, though above-mentioned two kinds of situations may occur, but can not continue for a long time, and because the real-time of standing wave alarm detection is less demanding, only need certain hour, such as several seconds, a few minutes, even the test of can having an opportunity in the longer time was once just enough, and therefore above-mentioned two kinds of situations are to the not influence of realization of standing wave alarm function.
The method that above-mentioned standing wave detects, by obtaining the situation that current carrier frequency takies time slot, and the time slot that takies of identification form carrier frequency, the situation that takies time slot according to single carrier frequency is carried out the standing wave detection, thereby avoided Beat Signal is carried out detection, improve precision and accuracy that standing wave detects, also reduced the implementation complexity of software and hardware scheme.
As shown in Figure 4, the flow chart for the embodiment of the invention two specifically may further comprise the steps:
Step S401 obtains the situation that current carrier frequency takies time slot, and the time slot that takies of identification form carrier frequency.Embodiment two adopts the method identical with enforcement one, obtains the situation that current carrier frequency takies time slot, and the time slot that takies of identification form carrier frequency, does not repeat them here.
Step S402, standing wave detecting unit carry out standing wave at all time slots and detect, and the testing result that standing wave detects is sent to management control unit in the BTS.Above-mentioned standing wave detects, and can be in the process of base station work, carries out continual standing wave all the time and detects, and also can be to select a time period, or carry out standing wave periodically in a period of time and detect.In macro base station, the standing wave measuring ability is finished by the standing wave detecting unit usually, because the standing wave detecting unit is not understood the configuration information of carrier frequency usually, do not know to transmit whether by single carrier frequency, two or more carrier frequency close the road and form, therefore the standing wave detecting unit is not distinguished time slot, comprise that at all time slots overloading takies time slot frequently, single carrier frequency takies time slot and no carrier frequency and takies time slot and carry out the standing wave detection, the testing result that standing wave is detected sends to the management control unit in the BTS that understands carrier frequency configuration and Time Slot Occupancy situation then, by the management control unit in the BTS testing result is accepted or rejected.
Step S403, the management control unit in the BTS are chosen in the testing result that standing wave that time slot that single carrier frequency takies carries out detects.After the standing wave testing result that receives the transmission of standing wave detecting unit, by the management control unit in the BTS that understands carrier frequency configuration and Time Slot Occupancy situation, be chosen in the testing result that standing wave that time slot that single carrier frequency takies carries out detects, with this result as final testing result.
In little base station or RRU, RFU, because management control unit, carrier frequency unit and the unification of standing wave detecting unit, the configuration relative fixed, so time slot is selected and the matching problem of standing wave detection is handled easily, the standing wave testing process can be unified to be finished by management control unit.
The method that above-mentioned standing wave detects, the testing result that the standing wave detecting unit detects standing wave sends to the management control unit in the BTS, be chosen in the testing result that standing wave that time slot that single carrier frequency takies carries out detects by the management control unit in the BTS according to the configuration of the carrier frequency of this BTS and Time Slot Occupancy situation, thereby improved the precision and the accuracy of standing wave detection.
As shown in Figure 5, the structure drawing of device for embodiment of the invention standing wave detects comprises:
Time slot situation acquiring unit 51 is used to obtain the situation that current carrier frequency takies time slot;
Standing wave detecting unit 52 is used for taking the time slot that the situation identification form carrier frequency of time slot takies according to current carrier frequency, and carries out standing wave according to the situation that single carrier frequency takies time slot and detect.
Wherein, standing wave detecting unit 52 can comprise: time slot standing wave detection sub-unit 521, the time slot that is used for taking at single carrier frequency are carried out standing wave and are detected.
Wherein, standing wave detecting unit 52 can also comprise: continue standing wave detection sub-unit 522, be used for carrying out standing wave at all time slots and detect;
The chooser unit 523 as a result, are used for being chosen in the testing result that standing wave that time slot that single carrier frequency takies carries out detects from the testing result that continues standing wave detection sub-unit 522.
The embodiment of the invention also provides a kind of base station, comprises the device that above-mentioned standing wave detects, and described base station comprises that all realize the eat dishes without rice or wine equipment of function and performance of mobile communication.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprises that some instructions are used so that a BTS equipment is carried out the described method of each embodiment of the present invention.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (7)
1. the method that standing wave detects is characterized in that, may further comprise the steps:
Obtain the situation that current carrier frequency takies time slot, and the time slot that takies of identification form carrier frequency;
The situation that takies time slot according to described single carrier frequency is carried out the standing wave detection.
2. the method that detects of standing wave according to claim 1 is characterized in that, the described situation that takies time slot according to single carrier frequency is carried out standing wave and detected and comprise: the time slot that takies at described single carrier frequency carries out standing wave and detects.
3. the method that detects of standing wave according to claim 1 is characterized in that, the described situation that takies time slot according to single carrier frequency is carried out standing wave and detected and also comprise:
Carrying out standing wave at all time slots detects;
From the result that described standing wave detects, be chosen in the testing result that standing wave that time slot that described single carrier frequency takies carries out detects.
4. the device that standing wave detects is characterized in that, comprising:
Time slot situation acquiring unit is used to obtain the situation that current carrier frequency takies time slot;
The standing wave detecting unit is used for taking the time slot that the situation identification form carrier frequency of time slot takies according to described current carrier frequency, and carries out standing wave according to the situation that described single carrier frequency takies time slot and detect.
5. the device that detects as standing wave as described in the claim 4 is characterized in that described standing wave detecting unit comprises:
Time slot standing wave detection sub-unit is used for carrying out standing wave at the time slot that described single carrier frequency takies and detects.
6. the device that detects as standing wave as described in the claim 4 is characterized in that described standing wave detecting unit also comprises:
Continue the standing wave detection sub-unit, be used for carrying out standing wave and detect at all time slots;
Chooser unit as a result is used for being chosen in the testing result that standing wave that time slot that described single carrier frequency takies carries out detects from the testing result of described lasting standing wave detection sub-unit.
7. a base station is characterized in that, comprises the device that detects as a kind of standing wave as described in any one of the claim 4 to 6, and described base station comprises that all realize the eat dishes without rice or wine equipment of function and performance of mobile communication.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100062163A CN101222739A (en) | 2007-12-27 | 2008-02-04 | Method, device and base station for standing wave detection |
| PCT/CN2008/073562 WO2009092239A1 (en) | 2007-12-27 | 2008-12-17 | Method, device and base station for standing wave detection |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710301793.0 | 2007-12-27 | ||
| CN200710301793 | 2007-12-27 | ||
| CNA2008100062163A CN101222739A (en) | 2007-12-27 | 2008-02-04 | Method, device and base station for standing wave detection |
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|---|---|
| CN101222739A true CN101222739A (en) | 2008-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100062163A Pending CN101222739A (en) | 2007-12-27 | 2008-02-04 | Method, device and base station for standing wave detection |
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| WO (1) | WO2009092239A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009092239A1 (en) * | 2007-12-27 | 2009-07-30 | Huawei Technologies Co., Ltd. | Method, device and base station for standing wave detection |
| CN102131204A (en) * | 2010-01-19 | 2011-07-20 | 华为技术有限公司 | Base station, system and standing wave detection method |
| 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 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE479168T1 (en) * | 1990-10-01 | 1992-11-26 | Murata Mfg. Co., Ltd., Nagaokakyo, Kyoto, Jp | ANTENNA MONITORING APPARATUS WITH WAVE FACTOR MEASURING UNIT. |
| CN100455089C (en) * | 2003-12-24 | 2009-01-21 | 中兴通讯股份有限公司 | An apparatus and method for implementing base station antenna standing-wave ratio alarm |
| CN1909428B (en) * | 2005-08-04 | 2010-06-09 | 中兴通讯股份有限公司 | Standing-wave ratio alarm detecting device in GSM impellent system for enhancing data speed |
| CN101222739A (en) * | 2007-12-27 | 2008-07-16 | 华为技术有限公司 | Method, device and base station for standing wave detection |
-
2008
- 2008-02-04 CN CNA2008100062163A patent/CN101222739A/en active Pending
- 2008-12-17 WO PCT/CN2008/073562 patent/WO2009092239A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009092239A1 (en) * | 2007-12-27 | 2009-07-30 | Huawei Technologies Co., Ltd. | Method, device and base station for standing wave detection |
| CN102131204A (en) * | 2010-01-19 | 2011-07-20 | 华为技术有限公司 | Base station, system and standing wave detection method |
| 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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| Publication number | Publication date |
|---|---|
| WO2009092239A1 (en) | 2009-07-30 |
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Application publication date: 20080716 |