CN102026256B - Method and device for monitoring abnormal jamming signal - Google Patents
Method and device for monitoring abnormal jamming signal Download PDFInfo
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- CN102026256B CN102026256B CN201010608805.6A CN201010608805A CN102026256B CN 102026256 B CN102026256 B CN 102026256B CN 201010608805 A CN201010608805 A CN 201010608805A CN 102026256 B CN102026256 B CN 102026256B
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Abstract
The invention discloses a method and a device for monitoring an abnormal jamming signal. The method comprises the following steps of: acquiring the power sum Mk1, Mk2, ...... and Mkn of all transmitting signals of all online mobile phones at respective fixed positions at different times in the same one carrier band, the power sum Rnk1, Rnk2, ...... and Rnkn of all signals in an antenna port carrier band, which correspond to Mk1, Mk2, ...... and Mkn and are detected by a base station, the transmission insertion loss sum IL of the transmitting signals from all the online mobile phones to the antenna port of the base station, which correspond to Mk1, Mk2, ...... and Mkn, and the thermal noise power N0 in the carrier band at the position of the antenna port of the base station, wherein kn is not less than 2; the abnormal jamming signal is monitored according to the acquired parameters of Mk1, Mk2, ...... and Mkn, Rnk1, Rnk2, ...... and Rnkn, IL and N0. The invention can monitor and capture small-jamming signals with huge influence on the performance of the base station in the carrier band in real time and can process and eliminate the jamming signals in time so as to maintain the high performance normal running of base station system. The invention has practical value and is also beneficial to improving the signal quality of an operator.
Description
Technical field
The present invention relates to mobile communication technology field, particularly relate to a kind of method and device of monitoring abnormal jamming signal.
Background technology
At present, the aerial abnormal common method of disturbing of base station system judgement is whether signal strength signal intensity RSSI (Received Signal Strength Indication, the signal strength signal intensity indication of reception) by calculating carrier bandwidths surpasses alarming threshold and judge.RSSI alarming threshold is generally got " possible maximum power+fluctuation range surplus during maximum customer volume ", as: CDMA (Code Division Multiple Access, code division multiple access) carrier wave RSSI alarming threshold is taken as :-85dBm.
But so, when customer volume is few, occur abnormal jamming signal, and signal power is while being less than RSSI alarming threshold, existing method just cannot be found this type of abnormal jamming signal, can alarm.But this type of abnormal jamming signal can make base station system hydraulic performance decline (as: sensitivity decline), there will be and make the abnormal conditions that new user cannot connecting system.
Table 1
For example, as shown in the experimental test data of table 1: known by experimental test, when in antenna opening CDMA carrier wave band, the single-tone of existence-100dBm disturbs, the reverse sensitivity meeting of the cdma base station about 15dB that declines is huge on base station performance impact.When in antenna opening CDMA carrier wave band, the single-tone of existence-110dBm disturbs, the reverse sensitivity meeting of the cdma base station about 6dB that declines is also larger on base station performance impact.
Because wireless space is open, cannot guarantee in the air without abnormal jamming signal, so, Real-Time Monitoring and seizure affect huge abnormal little interference signal to base station performance, timely processing is eliminated to interference signal, and base station maintenance system high-performance is normally moved, with practical value.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method and device of monitoring abnormal jamming signal, in order to solve prior art because being less than the abnormal jamming signal of RSSI alarming threshold by discovery signals power, and causes the larger problem of base station performance impact.
For solving the problems of the technologies described above, on the one hand, the invention provides a kind of method of monitoring abnormal jamming signal, said method comprising the steps of:
Obtain in same carrier wave band not each online mobile phone in the same time each transmit signal power sum Mk1, the Mk2 of fixed position separately ..., Mkn, and with Mk1, Mk2 ..., base station that Mkn is corresponding detect all signal power sum Rnk1, Rnk2 in antenna opening carrier wave band ..., Rnkn, with Mk1, Mk2 ..., each online mobile phone that Mkn is corresponding transmits signals to the transmission Insertion Loss sum IL of antenna for base station mouth, the power N0 that makes an uproar of the heat in the carrier wave band of antenna for base station mouth position; Wherein kn is more than or equal to 2;
According to the parameter Mk1 obtaining, Mk2 ..., Mkn, Rnk1, Rnk2 ..., Rnkn, IL, N0, abnormal jamming signal is monitored.
Further, according to the parameter Mk1 obtaining, Mk2 ..., Mkn, Rnk1, Rnk2 ..., Rnkn, IL, N0, abnormal jamming signal is monitored, specifically comprise the following steps:
According to formula (Rnk-N0+IL)/Mk-1=Yk/Mk, calculate respectively Yk1/Mk1, Yk2/Mk2 ..., Ykn/Mkn, wherein, k=k1, k2 ..., kn, Yk is k abnormal jamming signal power constantly;
When Yk1/Mk1 ≠ Yk2/Mk2 ≠ ... during ≠ Ykn/Mkn, judge in described carrier wave band and have abnormal jamming signal; When Yk1/Mk1=Yk2/Mk2=...=Ykn/Mkn, judge in described carrier wave band without abnormal jamming signal.
Further, while having abnormal jamming signal in judging described carrier wave band, described abnormal jamming signal is caught.
Further, described abnormal jamming signal is caught, specifically comprises the following steps:
Guiding is used the mobile phone of described carrier wave to be switched to online on other carrier wave of described carrier wave affiliated subdistrict, makes described carrier wave without cellphone subscriber;
Actual signal power RSSI while measuring and calculating described carrier wave no user (Cm);
When RSSI (Cm) > N0, the signal power that exceeds described NO is the abnormal jamming signal power in described carrier wave band.
Further, after capturing described abnormal jamming signal, show described abnormal jamming signal.
On the other hand, the present invention also provides a kind of device of monitoring abnormal jamming signal, and described device comprises:
Acquiring unit, for obtain in same carrier wave band not each online mobile phone in the same time each transmit signal power sum Mk1, the Mk2 of fixed position separately ..., Mkn, and with Mk1, Mk2 ..., base station that Mkn is corresponding detect all signal power sum Rnk1, Rnk2 in antenna opening carrier wave band ..., Rnkn, with Mk1, Mk2 ..., each online mobile phone that Mkn is corresponding transmits signals to the transmission Insertion Loss sum IL of antenna for base station mouth, the power N0 that makes an uproar of the heat in the carrier wave band of antenna for base station mouth position; Wherein kn is more than or equal to 2;
Monitoring means, for according to the parameter Mk1, the Mk2 that obtain ..., Mkn, Rnk1, Rnk2 ..., Rnkn, IL, N0, abnormal jamming signal is monitored.
Further, described monitoring means also comprises:
Computation subunit, for according to formula (Rnk-N0+IL)/Mk-1=Yk/Mk, calculate respectively Yk1/Mk1, Yk2/Mk2 ..., Ykn/Mkn, wherein, k=k1, k2 ..., kn, Yk is k abnormal jamming signal power constantly;
Judge subelement, for when Yk1/Mk1 ≠ Yk2/Mk2 ≠ ... during ≠ Ykn/Mkn, judge in described carrier wave band and have abnormal jamming signal; When Yk1/Mk1=Yk2/Mk2=...=Ykn/Mkn, judge in described carrier wave band without abnormal jamming signal.
Further, described device also comprises:
Capture unit, while having abnormal jamming signal for described monitoring means in judging described carrier wave band, catches described abnormal jamming signal.
Further, described capture unit also comprises:
Switch subelement, for guiding, use the mobile phone of described carrier wave to be switched to online other carrier wave of described carrier wave affiliated subdistrict, make described carrier wave without cellphone subscriber;
Measure subelement, the actual signal power RSSI (Cm) when measuring and calculating described carrier wave no user;
Recognin unit, for when RSSI (Cm) the > N0, is identified as the abnormal jamming signal power in described carrier wave band by the signal power that exceeds described NO.
Further, described capture unit also comprises:
Show subelement, for after capturing described abnormal jamming signal, show described abnormal jamming signal.
Beneficial effect of the present invention is as follows:
The present invention can Real-Time Monitoring and is caught base station performance is affected to little interference signal in huge carrier wave band, and timely processing is eliminated to interference signal, and base station maintenance system high-performance is normally moved, with practical value, is also conducive to improve the signal quality of operator simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of flow chart of monitoring the method for abnormal jamming signal in the embodiment of the present invention;
Fig. 2 is a kind of structural representation of monitoring the device of abnormal jamming signal in the embodiment of the present invention;
Fig. 3 is the structural representation of the device of another monitoring abnormal jamming signal in the embodiment of the present invention.
Embodiment
In order to solve prior art because cannot discovery signals power being less than the abnormal jamming signal of RSSI alarming threshold, and cause the larger problem of base station performance impact, the invention provides a kind of method and device of monitoring abnormal jamming signal, below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, does not limit the present invention.
As shown in Figure 1, the embodiment of the present invention relates to a kind of method of monitoring abnormal jamming signal, specifically comprises the following steps:
Step S101, obtain in same carrier wave band not each online mobile phone in the same time each transmit signal power sum Mk1, the Mk2 of fixed position separately ..., Mkn, and with Mk1, Mk2 ..., base station that Mkn is corresponding detect all signal power sum Rnk1, Rnk2 in antenna opening carrier wave band ..., Rnkn, with Mk1, Mk2 ..., each online mobile phone that Mkn is corresponding transmits signals to the transmission Insertion Loss sum IL of antenna for base station mouth, the power N0 that makes an uproar of the heat in the carrier wave band of antenna for base station mouth position; Wherein kn is more than or equal to 2;
Signal in the carrier wave band of antenna for base station mouth position comprises that mobile phone signal, heat are made an uproar and possible abnormal jamming signal.Wherein, the mobile phone signal in carrier wave band generally comprise a plurality of different mobile phone signal MS1, MS2 ..., MSm; Wherein m is mobile phone numbering, is >=1 integer.In same position, the signal power of mobile phone MSn transmitting is Mnk, wherein n=1,2 ..., m; K=1,2 ..., t; T is the numbering of the unlike signal power of mobile phone transmitting, is >=1 integer.
The unlike signal power of mobile phone MSn transmitting is Mnk relatively, and the corresponding mobile phone signal power that base station end antenna opening receives is Bnk.The difference of the corresponding mobile phone signal power Bnk that the signal power Mnk of mobile phone MSn transmitting and base station end antenna opening receive is the Insertion Loss ILn of the transmission path that transmits of mobile phone MSn, relative fixedly time in the position of mobile phone and base station, (Mnk-Bnk)=ILn; During mobile phone MSn transmit signal power Mnk, the signal strength signal intensity that base station detects in the carrier wave band of antenna for base station mouth position is Rnk.Heat in the carrier wave band of the antenna for base station mouth position power of making an uproar is N0; The possible abnormal interference power corresponding with Mnk is Yk.
From existing station technology, base station is the signal power RSSI in the up-link carrier band of base stations detected antenna opening in real time, i.e. Rnk.Base station can be detected the signal to noise ratio index Eb/N0 of each the mobile phone carrier signal that enters base station in real time; The signal to noise ratio Eb/N0 of mobile phone carrier signal is corresponding one by one with the signal power of mobile phone transmitting.When in same carrier wave, different mobile phone signals are launched unlike signal power, the smnr data of the mobile phone carrier signal that base station detects, with (MSn-Eb/N0) k, represent, base station is the interior thermal noise power N0 of carrier bandwidths of base stations detected antenna opening position in real time, and it generally can not become at short notice.Smnr data (MSn-Eb/N0) k and the time T k (B) thereof of the unlike signal power Mnk of mobile phone MSn transmitting and time T k, base station real-time base stations detected antenna opening up-link carrier in-band signal power Rnk and time T k (A) thereof, the real-time detection of handset carrier signal in base station, can be stored by base station real time record.Keeping in online mobile phone proper communication situation, base station can notify each online mobile phone to carve at a time signal from equal-wattage to base station that simultaneously launch.
By the data structure of table 2, recording process data M nk and time T k, Rnk and time T k (A), (MSn-Eb/N0) k and time T k (B) thereof.Wherein, in table 2, the Insertion Loss ILn of the transmission path that the MS carrier power Bnk that antenna for base station mouth receives and mobile phone MSn transmit, without actual measurement, is put in Table 1, only for convenience of descriptive analysis.
Table 2
In addition, base station system also can measure in real time and record sheet 3 in process data, comprising: signal to noise ratio (MSn-Eb/N0) k of the MSn mobile phone signal that the gross power Rnk in the antenna for base station mouth carrier wave band that base station detects in real time and time T k (A), base station detect and Tnk detection time (B), base station meet mobile phone transmission power Mnk and the time T nk (C) that adjusts and extract mobile phone signal to carry to this (MSn-Eb/N0) k signal.
Table 3
Cause is to fixing base station system, its inside " Tnk detection time (B) and the base station of signal to noise ratio (MSn-Eb/N0) k of the MSn mobile phone signal that the time T k (A) of the gross power Rnk in the antenna for base station mouth carrier wave band detecting in real time and base station detect connect the relation of the time T nk (C) that adjusts and extract mobile phone transmission power Mnk to this (MSn-Eb/N0) k signal, that is: the relation of Tk (A), Tnk (B) and Tnk (C) be fix with can measure in advance known.For example: Tk (A) is than Zao 0.5 microsecond of Tnk (B), and Tnk (C) postpones 1 microsecond than Tk (B).The characteristic relation of Tk (A), Tnk (B) and Tnk (C), pre-stored in base station system.Wherein corresponding, Tnk (B) is with (MSn-Eb/N0) k data are corresponding one by one one by one for Tk (A) and Rnk data, and Tnk (C) is corresponding one by one with Mnk data.Data and relation according to the Tk in table 3 (A), Tnk (B) and Tnk (C), can retrieve relevant Rnk data, (MSn-Eb/N0) k data and Mnk data, for abnormal interference analysis.
Wherein, " relevant Mnk data, Rnk data and (MSn-Eb/N0) k data ", refer to: " each mobile phone corresponding to each online mobile phone signal that base station system receives in the same carrier wave band of antenna for base station mouth be simultaneously in the signal power Mnk data of fixed position transmitting separately, and (MSn-Eb/N0) k data of corresponding base station detected carrier wave band internal power Rnk data and corresponding each mobile phone signal ".
Step S102, according to the parameter Mk1 obtaining, Mk2 ..., Mkn, Rnk1, Rnk2 ..., Rnkn, IL, N0, abnormal jamming signal is monitored.
Because the signal in the carrier wave band of antenna for base station mouth position comprises that mobile phone signal, heat are made an uproar and possible abnormal jamming signal, therefore, Rnk=(B1k+B2k+...+Bnk)+N0+Yk; And Bnk=Mnk-Iln;
So, Rnk=[(M1k-IL1)+(M2k-IL2)+...+(Mnk-ILn)]+N0+Yk
＝(M1k+M2k+...+Mnk)-(IL1+IL2+...+ILn)+N0+Yk；
Through arranging, can obtain:
Rnk-(M1k+M2k+...+Mnk)-N0＝Yk-(IL1+IL2+...+ILn)；--------------(1)
Wherein, make Mk=M1k+M2k+...+Mnk, Mk is that constantly each online mobile phone of k, in each transmit signal power sum of fixed position separately, makes IL=IL1+IL2+...+Iln, and IL transmits signals to the transmission Insertion Loss sum of antenna for base station mouth for each online mobile phone corresponding to k constantly.
For k in the same time not, Mk, Rnk, N0 and IL can be tried to achieve by table 2 or table 3 in base station.Because the abnormal Yk that disturbs is and base station and the irrelevant interference signal of mobile phone, in mobile phone transmit signal power quick-adjustsing process of moment, can think that abnormal interference Yk is constant, even and extremely disturb Yk to change, can not change relevant to the adjustment of mobile phone signal power yet; Therefore, according to formula 1, try to achieve not Yk in the same time, by Yk is more in the same time not identical, can judge whether to exist abnormal jamming signal.
For illustrating further the monitoring method of abnormal jamming signal, the present embodiment provides a concrete abnormal jamming signal decision method, specific as follows:
In the process database of table 2 or table 3, get 3 groups of data: (M1k, M2k ..., Mnk) and Rnk, (wherein k=k1, k2 and k3); And Rnk1 ≠ Rnk2 ≠ Rnk3; (M1k1+M2k1+...+Mnk1) ≠ (M1k2+M2k2+...+Mnk2) ≠ (M1k3+M2k3+...+Mnk3).
By 3 groups of data above, the relational expression 1 above substitution, obtains:
Rnk1-(M1k1+M2k1+...+Mnk1)-N0＝Yk1-(IL1+IL2+...+ILn)；(2)
Rnk2-(M1k2+M2k2+...+Mnk2)-N0＝Yk2-(IL1+IL2+...+ILn)；(3)
Rnk3-(M1k3+M2k3+...+Mnk3)-N0＝Yk3-(IL1+IL2+...+ILn)；(4)
In the both members of relational expression 2, except (M1k1+M2k1+...+Mnk1), for convenience of description, (M1k1+M2k1+...+Mnk1) replaced with Mk1 respectively.In the both members of relational expression 3, except (M1k2+M2k2+...+Mnk2), for convenience of description, (M1k2+M2k2+...+Mnk2) replaced with Mk2 respectively.In the both members of relational expression 4, except (M1k3+M2k3+...+Mnk3), for convenience of description, (M1k3+M2k3+...+Mnk3) replaced with Mk3 respectively.For convenience of description, (IL1+IL2+...+ILn) replaced with IL.
Have:
(Rnk1-N0+IL)/Mk1-1＝Yk1/Mk1；------------------------(2a)
(Rnk2-N0+IL)/Mk2-1＝Yk2/Mk2；------------------------(3a)
(Rnk3-N0+IL)/Mk3-1＝Yk3/Mk3；------------------------(4a)
Because the abnormal Yk that disturbs is and base station and the irrelevant interference signal of mobile phone, in mobile phone transmit signal power quick-adjustsing process of moment, can think that abnormal interference Yk is constant, even and extremely disturb Yk to change, can not change relevant to the adjustment of mobile phone signal power yet; The power data that the mobile phone of getting because of analysis again transmits is: Mk1 ≠ Mk2 ≠ Mk3; So have:
(Yk1/Mk1)≠(Yk2/Mk2)≠(Yk3/Mk3)，Yk≠0；------------(5)
(Yk1/Mk1)＝(Yk2/Mk2)＝(Yk3/Mk3)＝0，Yk＝0；-------------(6)
Formula 2a, formula 3a, formula 4a, formula 5 and formula 6 by above, can obtain:
When abnormal interference Yk=0, have:
(Rnk1-N0+IL)/Mk1＝(Rnk2-N0+IL)/Mk2＝(Rnk3-N0+IL)/Mk3；(7)
When abnormal interference Yk ≠ 0, have:
(Rnk1-N0+IL)/Mk1≠(Rnk2-N0+IL)/Mk2≠(Rnk3-N0+IL)/Mk3；(8)
Wherein Mk1, Mk2 and Mk3 are each online mobile phones in each transmit signal power sum of the different time of fixed position separately; Rnk1, Rnk2 and Rnk3 are that the base station corresponding to Mk1, Mk2 and Mk3 detects all signal power sums in antenna opening carrier wave band; IL transmits signals to the transmission Insertion Loss sum of antenna for base station mouth corresponding to each online mobile phone of Mk1, Mk2 and Mk3, IL is changeless parameter.Rnk1, N0, Mk1; Rnk2, Mk2; Rnk3, Mk3 are the known parameters data that can survey by base station prior art.
Therefore,, when Yk1/Mk1=Yk2/Mk2=Yk3/Mk3, in antenna for base station mouth carrier wave band, without abnormal, disturb; When Yk1/Mk1 ≠ Yk2/Mk2 ≠ Yk3/Mk3, in antenna for base station mouth carrier wave band, there is abnormal interference.
While having abnormal interference in monitoring antenna for base station mouth carrier wave band, also need aerial interference signal to catch in real time, comprise the steps:
1. the method for disturbing by above-mentioned Real-Time Monitoring, when judgement antenna for base station mouth has abnormal jamming signal, OMC (Operations Maintenance Cent, operation maintenance center) backstage is to user's alarm; Prompting simultaneously: select " catching online this interference signal "? after user confirms to catch online this interference signal, carry out following steps.
2., if base station catches interference signal online, continue to carry out step below:
The relevant information of the online mobile phone of this carrier wave of the definite use at present of base station system (as: frequency, smnr data, signal power, etc.), for switching, carrier wave prepares; Base station system checks the service condition of community intercarrier, and confirming has other carrier wave to be used by new user in this community; In community, other carrier wave has enough idle channel resources, and in the time of can holding the online mobile phone of this carrier wave, base station utilizes prior art, and positive guide is used the mobile phone of this carrier wave to be switched to online on other available carrier wave, makes this carrier wave without cellphone subscriber;
Base station measurement the actual signal power RSSI (Cm) while calculating this carrier wave no user (actual measurement is disturbed);
With RSSI (Cm) (actual measurement is disturbed), compare with the thermal noise power N0 in carrier wave band, if RSSI (Cm) > is N0, the signal power that exceeds NO affects huge abnormal jamming signal power to base station performance in carrier wave band for this reason.
Meanwhile, OMC can show the interference signal that this captures.
In addition, as shown in Figure 2, the invention still further relates to a kind of device of realizing the monitoring abnormal jamming signal of said method, device comprises:
Acquiring unit 201, for obtain in same carrier wave band not each online mobile phone in the same time each transmit signal power sum Mk1, the Mk2 of fixed position separately ..., Mkn, and with Mk1, Mk2 ..., base station that Mkn is corresponding detect all signal power sum Rnk1, Rnk2 in antenna opening carrier wave band ..., Rnkn, with Mk1, Mk2 ..., each online mobile phone that Mkn is corresponding transmits signals to the transmission Insertion Loss sum IL of antenna for base station mouth, the power N0 that makes an uproar of the heat in the carrier wave band of antenna for base station mouth position; Wherein kn is more than or equal to 2;
Monitoring means 202, for according to the parameter Mk1, the Mk2 that obtain ..., Mkn, Rnk1, Rnk2 ..., Rnkn, IL, N0, abnormal jamming signal is monitored.
In addition, as shown in Figure 3, for Da Gengjia implements object, the invention still further relates to a kind of device of monitoring abnormal jamming signal, device comprises:
Acquiring unit 301, for obtain in same carrier wave band not each online mobile phone in the same time each transmit signal power sum Mk1, the Mk2 of fixed position separately ..., Mkn, and with Mk1, Mk2 ..., base station that Mkn is corresponding detect all signal power sum Rnk1, Rnk2 in antenna opening carrier wave band ..., Rnkn, with Mk1, Mk2 ..., each online mobile phone that Mkn is corresponding transmits signals to the transmission Insertion Loss sum IL of antenna for base station mouth, the power N0 that makes an uproar of the heat in the carrier wave band of antenna for base station mouth position; Wherein kn is more than or equal to 2;
Monitoring means 302, for according to the parameter Mk1, the Mk2 that obtain ..., Mkn, Rnk1, Rnk2 ..., Rnkn, IL, N0, abnormal jamming signal is monitored;
Capture unit 303, while having abnormal jamming signal for monitoring means in judging carrier wave band, catches abnormal jamming signal.
Monitoring means 302 comprises:
Computation subunit 3021, for according to formula (Rnk-N0+IL)/Mk-1=Yk/Mk, calculate respectively Yk1/Mk1, Yk2/Mk2 ..., Ykn/Mkn, wherein, k=k1, k2 ..., kn, Yk is k abnormal jamming signal power constantly;
Judge subelement 3022, for when Yk1/Mk1 ≠ Yk2/Mk2 ≠ ... during ≠ Ykn/Mkn, judge in carrier wave band and have abnormal jamming signal; When Yk1/Mk1=Yk2/Mk2=...=Ykn/Mkn, judge in carrier wave band without abnormal jamming signal.
Capture unit 303 also comprises:
Switch subelement 3031, for guiding, use the mobile phone of carrier wave to be switched to online other carrier wave of carrier wave affiliated subdistrict, make carrier wave without cellphone subscriber;
Measure subelement 3032, the actual signal power RSSI (Cm) when measuring and calculating carrier wave no user;
Recognin unit 3033, for when RSSI (Cm) the > N0, is identified as the abnormal jamming signal power in carrier wave band by the signal power that exceeds NO.
Show subelement 3034, for after capturing abnormal jamming signal, show abnormal jamming signal.
As can be seen from the above-described embodiment, the present invention can Real-Time Monitoring and is caught base station performance is affected to little interference signal in huge carrier wave band, and timely processing is eliminated to interference signal, and base station maintenance system high-performance is normally moved, with practical value, be also conducive to improve the signal quality of operator simultaneously.
Although be example object, the preferred embodiments of the present invention are disclosed, it is also possible those skilled in the art will recognize various improvement, increase and replacement, therefore, scope of the present invention should be not limited to above-described embodiment.
Claims (8)
1. a method of monitoring abnormal jamming signal, is characterized in that, said method comprising the steps of:
Obtain in same carrier wave band not each online mobile phone in the same time each transmit signal power sum Mk1, the Mk2 of fixed position separately ..., Mkn, and with Mk1, Mk2 ..., base station that Mkn is corresponding detect all signal power sum Rnk1, Rnk2 in antenna opening carrier wave band ..., Rnkn, with Mk1, Mk2 ..., each online mobile phone that Mkn is corresponding transmits signals to the transmission Insertion Loss sum IL of antenna for base station mouth, the power N0 that makes an uproar of the heat in the carrier wave band of antenna for base station mouth position; Wherein kn is more than or equal to 2;
According to formula (Rnk-N0+IL)/Mk-1=Yk/Mk, calculate respectively Yk1/Mk1, Yk2/Mk2 ..., Ykn/Mkn, wherein, k=k1, k2 ..., kn, Yk is k abnormal jamming signal power constantly;
When Yk1/Mk1 ≠ Yk2/Mk2 ≠ ... during ≠ Ykn/Mkn, judge in described carrier wave band and have abnormal jamming signal; When Yk1/Mk1=Yk2/Mk2=...=Ykn/Mkn, judge in described carrier wave band without abnormal jamming signal.
2. the method for monitoring abnormal jamming signal as claimed in claim 1, is characterized in that, while having abnormal jamming signal in judging described carrier wave band, described abnormal jamming signal is caught.
3. the method for monitoring abnormal jamming signal as claimed in claim 2, is characterized in that, described abnormal jamming signal is caught, and specifically comprises the following steps:
Guiding is used the mobile phone of described carrier wave to be switched to online on other carrier wave of described carrier wave affiliated subdistrict, makes described carrier wave without cellphone subscriber;
Actual signal power RSSI while measuring and calculating described carrier wave no user (Cm);
When RSSI (Cm) > N0, the signal power that exceeds described N0 is the abnormal jamming signal power in described carrier wave band.
4. the method for monitoring abnormal jamming signal as claimed in claim 3, is characterized in that, after capturing described abnormal jamming signal, shows described abnormal jamming signal.
5. a device of monitoring abnormal jamming signal, is characterized in that, described device comprises:
Acquiring unit, for obtain in same carrier wave band not each online mobile phone in the same time each transmit signal power sum Mk1, the Mk2 of fixed position separately ..., Mkn, and with Mk1, Mk2 ..., base station that Mkn is corresponding detect all signal power sum Rnk1, Rnk2 in antenna opening carrier wave band ..., Rnkn, with Mk1, Mk2 ..., each online mobile phone that Mkn is corresponding transmits signals to the transmission Insertion Loss sum IL of antenna for base station mouth, the power N0 that makes an uproar of the heat in the carrier wave band of antenna for base station mouth position; Wherein kn is more than or equal to 2;
Monitoring means, for according to the parameter Mk1, the Mk2 that obtain ..., Mkn, Rnk1, Rnk2 ..., Rnkn, IL, N0, abnormal jamming signal is monitored;
Described monitoring means also comprises:
Computation subunit, for according to formula (Rnk-N0+IL)/Mk-1=Yk/Mk, calculate respectively Yk1/Mk1, Yk2/Mk2 ..., Ykn/Mkn, wherein, k=k1, k2 ..., kn, Yk is k abnormal jamming signal power constantly;
Judge subelement, for when Yk1/Mk1 ≠ Yk2/Mk2 ≠ ... during ≠ Ykn/Mkn, judge in described carrier wave band and have abnormal jamming signal; When Yk1/Mk1=Yk2/Mk2=...=Ykn/Mkn, judge in described carrier wave band without abnormal jamming signal.
6. the device of monitoring abnormal jamming signal as claimed in claim 5, is characterized in that, described device also comprises:
Capture unit, while having abnormal jamming signal for described monitoring means in judging described carrier wave band, catches described abnormal jamming signal.
7. the device of monitoring abnormal jamming signal as claimed in claim 6, is characterized in that, described capture unit also comprises:
Switch subelement, for guiding, use the mobile phone of described carrier wave to be switched to online other carrier wave of described carrier wave affiliated subdistrict, make described carrier wave without cellphone subscriber;
Measure subelement, the actual signal power RSSI (Cm) when measuring and calculating described carrier wave no user;
Recognin unit, for when RSSI (Cm) the > N0, is identified as the abnormal jamming signal power in described carrier wave band by the signal power that exceeds described N0.
8. the device of monitoring abnormal jamming signal as claimed in claim 7, is characterized in that, described capture unit also comprises:
Show subelement, for after capturing described abnormal jamming signal, show described abnormal jamming signal.
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| CN201010608805.6A CN102026256B (en) | 2010-12-28 | 2010-12-28 | Method and device for monitoring abnormal jamming signal |
| PCT/CN2011/075824 WO2012088841A1 (en) | 2010-12-28 | 2011-06-16 | Method and device for monitoring abnormal interference signals |
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| CN103580762A (en) * | 2013-11-15 | 2014-02-12 | 无锡儒安科技有限公司 | Wireless signal type recognition method based on energy patterns |
| CN106160891B (en) * | 2015-03-30 | 2018-08-24 | 青岛海尔空调电子有限公司 | The detection method and device and air-conditioning equipment of communication quality |
| US10566835B2 (en) | 2016-07-22 | 2020-02-18 | International Business Machines Corporation | Detecting power outages using smartphone sensors |
| CN106936469B (en) * | 2017-03-01 | 2018-12-18 | 北京理工大学 | A kind of unified carrier TT & C signal acquisition methods of rejecting single-tone jamming |
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| US6229998B1 (en) * | 1999-04-12 | 2001-05-08 | Qualcomm Inc. | Method and system for detecting in-band jammers in a spread spectrum wireless base station |
| CN1921676A (en) * | 2006-09-15 | 2007-02-28 | 华为技术有限公司 | Up channel analytical method, up channel abnormal analytical method and system |
| CN101127955A (en) * | 2007-08-16 | 2008-02-20 | 中兴通讯股份有限公司 | Estimation method of UE load in code division multi-address system |
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| US6229998B1 (en) * | 1999-04-12 | 2001-05-08 | Qualcomm Inc. | Method and system for detecting in-band jammers in a spread spectrum wireless base station |
| CN1921676A (en) * | 2006-09-15 | 2007-02-28 | 华为技术有限公司 | Up channel analytical method, up channel abnormal analytical method and system |
| CN101127955A (en) * | 2007-08-16 | 2008-02-20 | 中兴通讯股份有限公司 | Estimation method of UE load in code division multi-address system |
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