CN103517299B - A kind of base-station intermodulation signal detection method and system - Google Patents
A kind of base-station intermodulation signal detection method and system Download PDFInfo
- Publication number
- CN103517299B CN103517299B CN201210292992.0A CN201210292992A CN103517299B CN 103517299 B CN103517299 B CN 103517299B CN 201210292992 A CN201210292992 A CN 201210292992A CN 103517299 B CN103517299 B CN 103517299B
- Authority
- CN
- China
- Prior art keywords
- frequency point
- intermodulation
- signal
- detection
- power intensity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The invention discloses a kind of base-station intermodulation signal detection method, the method is applied in base-station intermodulation signal detection system, the system comprises：Directional coupler, receiver and processor, the method is coupled the uplink signal by directional coupler, and the power samples that receiver carries out uplink signal have been sent to it, downlink frequency point information of the processor according to preset base station, intermodulation detection frequency point is calculated, the processor, which can control and receive machine, makes it carry out the detection of performance number on intermodulation detection frequency point, without closing base station, the real-time detection to the inter-modulated signal is realized using the directional coupler, simulation input numerical value is not needed yet, in this way can it is exact reflection base station intermodulation information, improve the accuracy rate to Intermodulation Interference detection.
Description
This application claims in submission on June 18th, 2012 Patent Office of the People's Republic of China, application No. is 201210201606.2, invention names
Referred to as the priority of the Chinese patent application of " a kind of base station signal detection method and system ", entire contents are incorporated by reference
In this application.
Technical field
The present invention relates to wireless communication field, especially a kind of base-station intermodulation signal detection method and system.
Background technique
In a wireless communication system, especially in gsm wireless communication system, the carrier number of Base Transmitter can be up to 8
Even to 16, when in the antenna feeder network system of base station cable connector or other passive devices produced due to quality or installation question
When raw nonlinear problem, Intermodulation Interference can be generated, so-called Intermodulation Interference refers to, when more than two spectrum components act on it is non-linear
It when device, will intermodulate, to generate new frequency component, that is, generate intermodulation interference signal, this intermodulation interference signal is with upper
Row signal is received by base station receiver together, if the frequency is just fallen in the bandwidth of operation of base station receiver, is docked
Receipts machine receives uplink signal and interferes, and reduces the sensitivity of receiver.
In practical applications, in order to detect intermodulation interference signal, following methods is proposed, increases in base station controller and opens
/ shutdown signal is opened, control base station sends test signal/normal signal, compares the difference of the uplink receiving signal under two states,
Judged whether with this with Intermodulation Interference, in the method, base station can periodicity sending test data, and it is logical to detect uplink receiving
The interference level in road compares test data and sends front and back, and the difference of interference level judges whether there is Intermodulation Interference with this, on
It states in method, base station is needed to work alternatively under normal condition and test mode, this affects the normal work of base station, works as base station
Receiving channel receive interference level measurement when, be substantially a kind of input of simulation, not base station is true under test mode
Real transmitting signal, can not reflect the true intermodulation information of base station, cause the problem low to Intermodulation Interference Detection accuracy.
Summary of the invention
Problem to be solved by this invention is：A kind of base-station intermodulation signal detection method is provided, to solve in the prior art
The true intermodulation information that can not objectively respond base station occurred, causes the problem that accuracy rate is low.
The present invention provides a kind of base-station intermodulation signal detection method, and the method is applied to base-station intermodulation signal detection system
System, the system comprises：Directional coupler, receiver and processor, this method include：
The processor receives preset base station down frequency point information, determines intermodulation corresponding with the downlink frequency point information
Detect frequency point；
Intermodulation detection frequency point is sent to the receiver, and obtains the receiver in its received uplink signal
In detect, power intensity values corresponding with intermodulation detection frequency point, the uplink signal is that the directional coupler leads to
It crosses antenna feeder network real-time reception and is transmitted to the receiver；
Judge whether to be stored with maximum power intensity value corresponding with intermodulation detection frequency point, if so, will be described
Power intensity values are compared with the maximum power intensity value, and using the larger value in the two as maximum power intensity value into
Row storage, if it is not, then being stored the power intensity values as maximum power intensity value.
Preferably, the intermodulation maximum power intensity value on frequency point is detected to be compared with predetermined threshold value, if
More than predetermined threshold value, then give a warning.
Preferably, the process of determination intermodulation detection frequency point corresponding with the downlink frequency point information includes：
According to the downlink frequency point information of received preset base station, the corresponding uplink of the downlink frequency point information is calculated
Frequency point information, and intermodulation frequency point corresponding with the downlink frequency point information is calculated；
Judge whether comprising intermodulation frequency point information in the uplink frequency point information, if comprising judging the intermodulation frequency
Whether point information is the uplink frequency point information, if do not included, is deleted；
If the intermodulation frequency point information is the uplink frequency point information, do not know corresponding with the downlink frequency point information
Intermodulation detect frequency point, if it is not, then determining corresponding with downlink frequency point information intermodulation detection frequency point.
Preferably, time of the maximum power intensity value beyond predetermined threshold value on the intermodulation detection frequency point is recorded respectively
Number, and the number according to the record draws the power intensity values curve of the corresponding intermodulation detection frequency point.
A kind of base-station intermodulation signal detection system, the system comprises：Directional coupler, receiver and processor；
Wherein：The processor is used for, and receives preset base station down frequency point information, the determining and downlink frequency point information
Corresponding intermodulation detects frequency point, and intermodulation detection frequency point is sent to the receiver, and obtains the receiver and connect at it
It is detected in the uplink signal of receipts, and corresponding power intensity values of intermodulation detection frequency point, judges whether to be stored with and institute
The corresponding maximum power intensity value of intermodulation detection frequency point is stated, if so, the power intensity values and the maximum power are strong
Angle value is compared, and is stored the larger value in the two as maximum power intensity value, if it is not, then by the power
Intensity value is stored as maximum power intensity value；
The directional coupler is used for, and by antenna feeder network real-time reception uplink signal, and the uplink signal is forwarded
To the receiver；
The receiver is used for, and receives the intermodulation detection frequency point that the processor is sent, and turn in the directional coupler
Detection power intensity values corresponding with intermodulation detection frequency point in the uplink signal of hair.
Preferably, the receiver includes：Filter, amplifier, frequency mixer, analog-digital converter and Digital Signal Processing
Device；
The filter is used for, and is received the uplink signal, and be filtered to the uplink signal, is obtained filtered
Uplink signal；
The amplifier is used for, and the filtered uplink signal is amplified, amplified filtering signal is obtained；
The frequency mixer is used for, and amplified filtering signal is carried out down coversion, obtains down-conversion signal；
The analog-digital converter is used for, and down-conversion signal is carried out digital conversion, obtains digital signal；
The digital signal processor is used for, and is carried out power samples to the digital signal, is obtained power samples value.
As can be seen from the above technical solutions, the present invention provides a kind of base-station intermodulation signal detection method and system, institutes
State detection method apply in the system, the system comprises：Directional coupler, receiver and processor, in the method not
It needs to close base station, it is only necessary to couple the uplink signal by directional coupler, and be sent to receiver progress
Intermodulation detection frequency is calculated in the power samples of uplink signal, downlink frequency point information of the processor according to preset base station
Point, the processor, which can control and receive machine, makes it carry out the detection of performance number on intermodulation detection frequency point, without mould
Quasi- input numerical value, in this way can exact reflection base station intermodulation information, improve the accuracy rate to Intermodulation Interference detection.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in invention, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of base-station intermodulation signal detection system structure disclosed in the embodiment of the present invention one；
Fig. 2 is the structural schematic diagram of receiver disclosed by the invention；
Fig. 3 is a kind of base-station intermodulation signal detection method flow diagram disclosed in the embodiment of the present invention two；
Fig. 4 is a kind of base-station intermodulation signal detection method flow diagram disclosed in the embodiment of the present invention three；
Fig. 5 is a kind of base-station intermodulation signal detection method flow diagram disclosed in the embodiment of the present invention four.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, protection scope of the present invention is belonged to.
The embodiment of the invention discloses a kind of base-station intermodulation signal detection method, the method is applied to a kind of base station intermodulation
Signal detection system, embodiment one disclose a kind of base-station intermodulation signal detection system, and Fig. 1 is the structural representation of the system
Figure, the system comprises：Directional coupler 101, receiver 102 and processor 103；
The processor 103 is used for, and receives preset base station down frequency point information, the determining and downlink frequency point information pair
Intermodulation detection frequency point is sent to the receiver, and obtains the receiver in its reception by the intermodulation detection frequency point answered
Uplink signal in detect, power intensity values corresponding with intermodulation detection frequency point, judge whether to be stored with it is described
Intermodulation detects the corresponding maximum power intensity value of frequency point, if so, by the power intensity values and the maximum power intensity
Value is compared, and is stored the larger value in the two as maximum power intensity value, if it is not, then the power is strong
Angle value is stored as maximum power intensity value；
Wherein, processor receives preset current base station downlink frequency point information, and determination is corresponding with the downlink frequency point information
Intermodulation detect frequency point.
The directional coupler 101, for turning by antenna feeder network real-time reception uplink signal, and by the uplink signal
Issue the receiver 102；
Wherein, the directional coupler has not only coupled uplink signal, but also does not influence the normal work of base station, intermodulation detection and
Base station is worked normally without alternately.
Wherein, the directional coupler is used for, when the uplink signal is believed from the antenna feeder network to the antenna transmission
Number when, can by the directional coupler coupling after export, when the downlink signal pass through the directional coupler when, by described fixed
By load absorption after to coupler coupling, the load can within be set in the directional coupler, also can be set in outside.
The receiver 102 detects frequency point for receiving the intermodulation that the processor is sent, and in the directional coupler
Detection power intensity values corresponding with intermodulation detection frequency point in the uplink signal of forwarding.
Wherein, referring to fig. 2, the receiver includes the structural schematic diagram of the receiver：Filter 201, amplifier
202, frequency mixer 203, analog-digital converter 204 and digital signal processor 205；
The filter 201 is used for, and is received the uplink signal, and be filtered to the uplink signal, is filtered
Uplink signal afterwards；
The amplifier 202 is used for, and the filtered uplink signal is amplified, and obtains amplified filtering letter
Number；
The frequency mixer 203 is used for, and amplified filtering signal is carried out down coversion, obtains down-conversion signal；
The analog-digital converter 204 is used for, and down-conversion signal is carried out digital conversion, obtains digital signal；
The digital signal processor 205 is used for, and is carried out power samples to the digital signal, is obtained power samples value.
Wherein, the digital signal processor can be FPGA, be also possible to DSP even IC, as long as number can be completed
Word signal processing function, specifically, as long as the digital signal progress power samples that can be exported to analog-digital converter are
It can.
In the present embodiment, the invention discloses a kind of base-station intermodulation signal detection system, the system comprises：Directional couple
Device, receiver and processor do not need to close base station, it is only necessary to the uplink signal coupled by directional coupler,
And the power samples that receiver carries out uplink signal have been sent to, the processor is believed according to the downlink frequency point of preset base station
Intermodulation detection frequency point is calculated in breath, and the processor, which can control and receive machine, makes it carry out function on intermodulation detection frequency point
The detection of rate value, without simulation input numerical value, in this way can exact reflection base station Intermodulation Interference information, improve pair
The accuracy rate of Intermodulation Interference detection, and do not need to close base station during detection, it will affect the normal work of base station in this way
Make, method disclosed in the present embodiment, can also be real while base station operation because the directional coupler is utilized
When the interference of base station is detected.
Wherein, the digital signal processor in above-mentioned receiver can form new processor with processor integrator,
The new processor realizes the function of processor in embodiment one.
Fig. 3 is a kind of flow diagram of base-station intermodulation signal detection method disclosed in embodiment two, the method includes：
Step S101：The processor receives preset base station down frequency point information, the determining and downlink frequency point information
Corresponding intermodulation detects frequency point；
Wherein, the preset base station down frequency point signal can be being manually entered for engineer or remotely matching for network management
Set, but input be base station downlink frequency point information.
Step S102：Intermodulation detection frequency point is sent to the receiver, and obtains the receiver in its reception
Uplink signal in detect, power intensity values corresponding with intermodulation detection frequency point, the uplink signal is described fixed
Pass through antenna feeder network real-time reception to coupler and is transmitted to the receiver；
Step S103：Judge whether to be stored with maximum power intensity value corresponding with intermodulation detection frequency point, if
It is step S104 to be executed, if not, thening follow the steps S105；
Step S104：Judge whether the power intensity values are greater than the maximum power intensity value, if it is, executing step
Rapid S106, if not, thening follow the steps S107；
Step S105：Then stored the power intensity values as maximum power intensity value.
Step S106：The power intensity values are stored；
Step S107：The maximum power intensity value is stored.
Embodiment two discloses a kind of base-station intermodulation signal detection method, and the detection method is applied to the detection system
In, the detection system includes：Directional coupler, receiver and processor, the method includes：The uplink signal is oriented
After coupler coupling, it is transferred to the receiver, the receiver can carry out performance number to each frequency point in uplink signal and adopt
Collection, the processor can receive downlink frequency point information, and calculate intermodulation according to the downlink frequency point information and detect frequency point, the place
The information that the intermodulation detects frequency point can be sent to the receiver by reason device, and the receiver can detect frequency point in the intermodulation
Upper detection power intensity values, the power intensity values are stored, and will be described in the power intensity values and historical record
Intermodulation detects the power intensity values on frequency point, is compared, and stores big among the two as power intensity values, above-mentioned
In method, without closing base station, the detection to inter-modulated signal in real time can be realized using the directional coupler, simultaneously because
Detection signal is not one group of signal of simulation input, more accurately detects Intermodulation Interference in this way.
In the third embodiment, the invention discloses a kind of sides of determination intermodulation detection frequency point corresponding with the downlink frequency point
Method, Fig. 4 are the flow diagrams of the method, and the method step includes：
Step S201：According to the downlink frequency point information of received preset base station, the downlink frequency point information is calculated
Corresponding uplink frequency point information, and intermodulation frequency point corresponding with the downlink frequency point information is calculated；
Step S202：Judge whether comprising intermodulation frequency point information in the uplink band, if comprising thening follow the steps
S203, if not, thening follow the steps S204；
Step S203：Judge whether the intermodulation frequency point information is the uplink frequency point information, if so, thening follow the steps
S205, if not, thening follow the steps S206；
Step S204：Then delete；
Step S205：Intermodulation corresponding with the downlink frequency point is not known then detects frequency point；
Step S206：Then determine that intermodulation corresponding with the downlink frequency point detects frequency point.
Embodiment is third is that detect the method for frequency point to determination a kind of in embodiment intermodulation corresponding with the downlink frequency point
Open, downlink frequency point information of the method according to received preset base station is calculated and the downlink frequency point signal pair
The intermodulation frequency point information answered, the method can effectively delete what inter-modulated signal frequency point information was overlapped with uplink working signal frequency point
Part, has effectively distinguished inter-modulated signal and uplink works normally signal, further improves the accuracy rate of detection.
It illustrates, it is assumed that downlink frequency point signal f1For 930MHz, f2For 953MHz, f3For 954MHz, then these three frequency points
Third order intermodulation frequency point be respectively：
2*f1-f2=907MHz；
2*f2-f1=956MHz；
2*f1-f3=906MHz；
2*f3-f1=978MHz；
2*f2-f3=952MHz；
2*f3-f2=955MHz；
f1+f2-f3=929MHz；
f1+f3-f2=931MHz；
f2+f3-f1=977MHz。
After the third order intermodulation frequency point of above three frequency point is calculated, first have to delete not in the frequency point of uplink band quilt,
Since uplink band is 885-909MHz, it is only two remaining in above-mentioned 6 third order intermodulation frequency points：906MHz and 907MHz,
Secondly, needing to delete uplink frequency point to distinguish normal uplink signal and intermodulation signal, since uplink and downlink frequency point is
Occur in pairs, uplink frequency point is 45M lower than downlink frequency point, therefore the corresponding uplink frequency point point of preset three downlinks frequency point signal
Not Wei 885MHz, 909MHz, 908MHz, therefore the non-uplink frequency point of 906MHz and 907MHz is obtained, so without deleting.
In example IV, the invention discloses a kind of base-station intermodulation signal detection method, Fig. 5 is the process of the method
Schematic diagram, the method step include：
Step S301：The processor receives preset base station down frequency point information, the determining and downlink frequency point information
Corresponding intermodulation detects frequency point；
Step S302：Intermodulation detection frequency point is sent to the receiver, and obtains the receiver in its reception
Uplink signal in detect, power intensity values corresponding with intermodulation detection frequency point, the uplink signal is described fixed
To coupler by antenna feeder network real-time reception and forward；
Step S303：Judge whether to be stored with maximum power intensity value corresponding with intermodulation detection frequency point, if
It is step S304 to be executed, if not, thening follow the steps S305；
Step S304：Judge whether the power intensity values are greater than the maximum power intensity value, if it is, executing step
Rapid S306, if not, thening follow the steps S307；
Step S305：Then stored the power intensity values as maximum power intensity value.
Step S306：The power intensity values are stored；
Step S307：The maximum power intensity value is stored；
Step S308：The intermodulation is detected whether the maximum power intensity value on frequency point is greater than predetermined threshold value, if
It is to then follow the steps S309, if not, thening follow the steps S310;
Step S309：Then give a warning;
Step S310：It does not give a warning then.
Further, after the maximum power value to the intermodulation frequency point beyond predetermined threshold value is alarmed, further include：
Step S311：Time of the maximum power intensity value beyond predetermined threshold value on the intermodulation detection frequency point is recorded respectively
Number, the number according to the record draw the power intensity values curve of the corresponding intermodulation detection frequency point.
On the basis of embodiment three, in the present embodiment, when the maximum power intensity value is more than predetermined threshold value, institute
The system of stating can issue alarm, improve the reliability of system, further, the maximum power more than the predetermined threshold value is strong
The number of angle value is recorded, and the number according to the record draws corresponding curve, can intuitively detect hair in this way
The frequency point of raw Intermodulation Interference maximum probability has arrived data support to generation Intermodulation Interference offer on the frequency point is prevented.
The present embodiment, which does not limit, to alarm in the maximum power value to the intermodulation frequency point beyond predetermined threshold value
Afterwards, the number just exceeded is recorded, and also may be performed simultaneously above-mentioned alarm and the operation of record, alternatively, only by its into
Row record.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments are it will be apparent that as defined herein one for those skilled in the art
As principle can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will
It will not be intended to be limited to the embodiments shown herein, and be to fit to consistent with the principles and novel features disclosed herein
Widest range.
Claims (6)
1. a kind of base-station intermodulation signal detection method, which is characterized in that be applied to base-station intermodulation signal detection system, the system
Including：Directional coupler, receiver and processor, this method include：
The processor receives preset base station down frequency point information, determines intermodulation detection corresponding with the downlink frequency point information
Frequency point, the preset base station down frequency point information are to be configured according to the downlink frequency point information of base station；
Intermodulation detection frequency point is sent to the receiver, and obtains the receiver and is examined in its received uplink signal
It measures, power intensity values corresponding with intermodulation detection frequency point, the uplink signal is that the directional coupler passes through day
Feedback network real-time reception is simultaneously transmitted to the receiver；
Judge whether to be stored with maximum power intensity value corresponding with intermodulation detection frequency point, if so, by the power
Intensity value is compared with the maximum power intensity value, and is deposited the larger value in the two as maximum power intensity value
Storage, if it is not, then being stored the power intensity values as maximum power intensity value.
2. the method according to claim 1, wherein further including：
The intermodulation is detected the maximum power intensity value on frequency point to be compared with predetermined threshold value, if it exceeds pre-determined threshold
Value, then give a warning.
3. the method according to claim 1, wherein determination intermodulation corresponding with the downlink frequency point information
Detection frequency point process include：
According to the downlink frequency point information of received preset base station, the corresponding uplink frequency point of the downlink frequency point information is calculated
Information, and intermodulation frequency point corresponding with the downlink frequency point information is calculated；
Judge whether comprising intermodulation frequency point information in the uplink band, if comprising judging that the intermodulation frequency point information is
It is no to be deleted for the uplink frequency point information if do not included；
If the intermodulation frequency point information is the uplink frequency point information, intermodulation inspection corresponding with the downlink frequency point is not known
Frequency measurement point, if it is not, determining that intermodulation corresponding with the downlink frequency point detects frequency point.
4. the method according to claim 1, wherein further including：
The number that the maximum power intensity value on the intermodulation detection frequency point exceeds predetermined threshold value is recorded respectively, and according to described
The number of record draws the power intensity values curve of the corresponding intermodulation detection frequency point.
5. a kind of base-station intermodulation signal detection system, which is characterized in that the system comprises：Directional coupler, receiver and place
Manage device；
Wherein：The processor is used for, and receives preset base station down frequency point information, and determination is corresponding with the downlink frequency point information
Intermodulation detect frequency point, the preset base station down frequency point information is to be configured according to the downlink frequency point information of base station,
Intermodulation detection frequency point is sent to the receiver, and obtains the receiver and is detected in its received uplink signal
, power intensity values corresponding with intermodulation detection frequency point judge whether to be stored with corresponding with intermodulation detection frequency point
Maximum power intensity value, if so, the power intensity values are compared with the maximum power intensity value, and by the two
In the larger value stored as maximum power intensity value, if it is not, then the power intensity values are strong as maximum power
Angle value is stored；
The directional coupler is used for, and by antenna feeder network real-time reception uplink signal, and the uplink signal is transmitted to institute
State receiver；
The receiver is used for, and receives the intermodulation detection frequency point that the processor is sent, and in directional coupler forwarding
Detection power intensity values corresponding with intermodulation detection frequency point in uplink signal.
6. system according to claim 5, which is characterized in that the receiver includes：Filter, amplifier, frequency mixer,
Analog-digital converter and digital signal processor；
The filter is used for, and is received the uplink signal, and be filtered to the uplink signal, is obtained filtered uplink
Signal；
The amplifier is used for, and the filtered uplink signal is amplified, amplified filtering signal is obtained；
The frequency mixer is used for, and amplified filtering signal is carried out down coversion, obtains down-conversion signal；
The analog-digital converter is used for, and down-conversion signal is carried out digital conversion, obtains digital signal；
The digital signal processor is used for, and is carried out power samples to the digital signal, is obtained power samples value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210292992.0A CN103517299B (en) | 2012-06-18 | 2012-08-16 | A kind of base-station intermodulation signal detection method and system |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210201606 | 2012-06-18 | ||
| CN2012102016062 | 2012-06-18 | ||
| CN201210201606.2 | 2012-06-18 | ||
| CN201210292992.0A CN103517299B (en) | 2012-06-18 | 2012-08-16 | A kind of base-station intermodulation signal detection method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103517299A CN103517299A (en) | 2014-01-15 |
| CN103517299B true CN103517299B (en) | 2018-11-20 |
Family
ID=49899144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210292992.0A Expired - Fee Related CN103517299B (en) | 2012-06-18 | 2012-08-16 | A kind of base-station intermodulation signal detection method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103517299B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849970B (en) * | 2016-12-29 | 2019-10-18 | 上海华为技术有限公司 | A kind of passive intermodulation suppressing method and passive intermodulation inhibit system |
| CN109526035B (en) * | 2018-10-24 | 2021-07-13 | 维沃移动通信有限公司 | Communication method, mobile terminal and medium |
| CN109412986B (en) * | 2018-10-29 | 2021-05-14 | 维沃移动通信有限公司 | Communication channel setting method and mobile terminal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101296471A (en) * | 2008-06-30 | 2008-10-29 | 华为技术有限公司 | Interference detection device and interference detection method |
| CN202002984U (en) * | 2011-01-18 | 2011-10-05 | 南京纳特通信电子有限公司 | Multi-frequency-band passive intermodulation test instrument |
| CN102237924A (en) * | 2011-07-22 | 2011-11-09 | 京信通信系统（中国）有限公司 | Method and device for detecting interference of downlink in uplink of repeater |
| CN102547781A (en) * | 2010-12-14 | 2012-07-04 | 中国移动通信集团广东有限公司 | Method and device for determining intermodulation interference cell |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7336646B2 (en) * | 2004-10-26 | 2008-02-26 | Nokia Corporation | System and method for synchronizing a transport stream in a single frequency network |
-
2012
- 2012-08-16 CN CN201210292992.0A patent/CN103517299B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101296471A (en) * | 2008-06-30 | 2008-10-29 | 华为技术有限公司 | Interference detection device and interference detection method |
| CN102547781A (en) * | 2010-12-14 | 2012-07-04 | 中国移动通信集团广东有限公司 | Method and device for determining intermodulation interference cell |
| CN202002984U (en) * | 2011-01-18 | 2011-10-05 | 南京纳特通信电子有限公司 | Multi-frequency-band passive intermodulation test instrument |
| CN102237924A (en) * | 2011-07-22 | 2011-11-09 | 京信通信系统（中国）有限公司 | Method and device for detecting interference of downlink in uplink of repeater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103517299A (en) | 2014-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103517299B (en) | A kind of base-station intermodulation signal detection method and system | |
| CN102695184A (en) | Base station testing system and method | |
| CN105959976A (en) | VoLTE analysis method based on measurement report | |
| CN109462860A (en) | Throughput optimization method, device, electronic equipment and computer readable storage medium | |
| CN102830176A (en) | Local damage monitoring system and method based on extrinsic optical-fiber acoustic emission | |
| CN103139368A (en) | Prompt method and device | |
| JP2019507551A5 (en) | ||
| CN104217572A (en) | Measuring and monitoring system and method based on Beidou short message function | |
| CA2182817C (en) | Method and apparatus for spectrum analysis | |
| CN204669618U (en) | Wide-band radio frequency and frequency spectrum resource monitoring system | |
| CN104144455B (en) | The method and apparatus of communication quality is improved under wireless fidelity network environment | |
| CN202915884U (en) | Winding deformation tester | |
| CN104504881A (en) | Remote pipeline data collecting and processing system | |
| CN106413115A (en) | Wireless communication base station, radio signal processing method and device | |
| CN103516416B (en) | A kind of repeater | |
| KR101237490B1 (en) | the performance analysis and self diagnosis device for the RF system of mobile telecommunication | |
| CN101902758A (en) | Protocol testing based data processing method for wireless network and device thereof | |
| CN104754604B (en) | A kind of monitoring LTE is to the WLAN method, apparatus interfered and system | |
| CN106937319A (en) | A kind of antenna failure self checking method of wireless device | |
| CN113346963A (en) | Vehicle-mounted wireless communication product electromagnetic anti-interference test system and method based on 5G signal | |
| CN217542202U (en) | Embrace pole real-time stress wireless monitoring system | |
| CN101697647A (en) | Environmental-monitoring micro-power repeater | |
| CN101867423B (en) | Method and device for detecting spatial thermal noise at position of antenna | |
| CN111638077A (en) | Stay cable intelligent monitoring method and system based on front-end processing | |
| CN101778414A (en) | Method for monitoring covering effect of signals for wireless communication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181120 Termination date: 20190816 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |