CN107465464A - Mobile communication multiband sourceless seism tester and method of testing - Google Patents
Mobile communication multiband sourceless seism tester and method of testing Download PDFInfo
- Publication number
- CN107465464A CN107465464A CN201710791156.XA CN201710791156A CN107465464A CN 107465464 A CN107465464 A CN 107465464A CN 201710791156 A CN201710791156 A CN 201710791156A CN 107465464 A CN107465464 A CN 107465464A
- Authority
- CN
- China
- Prior art keywords
- mobile communication
- test device
- frequency
- multiband
- sourceless seism
- 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.)
- Pending
Links
- 238000010295 mobile communication Methods 0.000 title claims abstract description 25
- 238000010998 test method Methods 0.000 title abstract description 6
- 238000012360 testing method Methods 0.000 claims abstract description 29
- 238000012545 processing Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 description 10
- 238000011835 investigation Methods 0.000 description 7
- 238000004088 simulation Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/345—Interference values
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses mobile communication multiband sourceless seism test device and method of testing, the test device includes housing；Processing unit, i.e. the first band downlink processing unit ... N band downlink processing units occur for multiple downstream signals that multiplefrequency mixer and multiple frequency ranges are provided with housing；Multiple receiving ports of multiple frequency ranges, i.e. the first uplink band receiving port ... N uplink band receiving ports are provided with housing, multiple uplink band receiving port uplink ports corresponding with multiplefrequency mixer are connected；The output port being provided with housing, output port are connected with the output end of multiplefrequency mixer.The present invention can rapidly find out the definite source that passive reflective disturbs and determines interference by the cooperation of the test device and frequency spectrograph.
Description
Technical field
The present invention relates to sourceless seism technical field of measurement and test, more particularly, to mobile communication multiband sourceless seism tester
And method of testing.
Background technology
With being continuously increased for cordless communication network standard and frequency range, the reflection interference that wireless and passive device is brought is also not
Disconnected increase, the cordless communication network of each frequency range is required to be investigated using the intermodulation instrument of corresponding band, therefore, a project
Group needs to be equipped with more intermodulation instrument, and the existing most cost of intermodulation instrument is high, and inconvenient to carry, can be undoubtedly wireless so
The investigation work of communication network reflection interference causes huge obstruction.In addition, radio communication is progressively transitioned into by narrow band communication
Broadband connections, the Representative passive intermodulation reflection interference that narrow band communication often occurs also progressively will disturb institute by passive wideband spurious reflections
Substitution, and existing intermodulation instrument is one-segment mostly, can not accurately complete the investigation work to the interference of broadband spurious reflections, more without
Method accurately completes the investigation work that passive intermodulation reflection interference and the interference of passive intermodulation broadband spurious reflections are combined to multiband.
The content of the invention
The purpose of the present invention is to overcome the above mentioned problem of prior art, there is provided mobile communication multiband sourceless seism test dress
Put and method of testing, by the cooperation of the test device and frequency spectrograph, can rapidly find out passive reflective and disturb and determine to do
The definite source disturbed.
The purpose of the present invention is achieved through the following technical solutions：
Mobile communication multiband sourceless seism test device, including housing；
Processing unit, i.e. the first band downlink occur for multiple downstream signals that multiplefrequency mixer and multiple frequency ranges are provided with housing
Processing unit ... N band downlink processing units, each band downlink processing unit include same frequency combiner, amplifirer and more
Individual signal generator, the output end of multiple signal generators input corresponding with same frequency combiner is connected, with frequency combiner
Output end is connected with the input of amplifirer, output end and the multiplefrequency mixer phase of the amplifirer of multiple band downlink processing units
The downlink port answered is connected；
Multiple receiving ports of multiple frequency ranges, i.e. the first uplink band receiving port ... N uplink bands are provided with housing
Receiving port, multiple uplink band receiving port uplink ports corresponding with multiplefrequency mixer are connected；
Output port is provided with housing, output port is connected with the output end of multiplefrequency mixer.
In the present invention, to complete the equivalent simulation of passive reflective interference, up-downgoing frequency range should be than current allocated movement
Communication network frequency band is wider.The cordless communication network that the present invention is applicable may include that existing 2G/3G/4G/5G movements are logical at present
Letter system, wherein wherein 5G refers to the 5G GSMs of distribution of license plates i.e..
Using when, output port be used for be connected with antenna-feedback system or passive compartment system.Frequency spectrograph should be with disturbed frequency
That adaptable uplink band receiving port of section is connected.Downstream signal occurs processing unit and is used to produce and produce under interference
The adaptable frequency spectrum and bandwidth of line frequency section is simultaneously tested, and in test process, observes the letter of the disturbed frequency range on frequency spectrograph
Number situation, if finding interference signal, then sectionalization test is carried out to passive system until finding out passive reflective interference source and locating
Reason.
Further, the signal generator selects adaptive-bandwidth signal generator.
Further, bandwidth selection 100KHz, 200KHz of multiple signal generators, 1.23MHz, 2 MHz, 5
One or several kinds in MHz, 10 MHz, 15 MHz or 20 MHz.
Further, the rated power of the amplifirer is between 1W ~ 100W.
Further, the quantity that processing unit occurs for the downstream signal is 1 ~ 10.
Further, the power adjustment stepping of the amplifirer is not more than 0.5dB, and adjusting range is more than 20dB.
Further, the quantity of the receiving port is 1 ~ 10.
Further, the multiple frequency range includes CDMA800, CDMA2000, GSM900, DCS1800, WCDMA, TDD system
Formula GSM A, D, E and F-band.CDMA800 frequency range is 825-835MHz/870-880MHz, GSM900 frequency range
For 885-915MHz/930-960MHz, DCS1800 frequency range is 1710-1785MHz/1805-1880MHz, WCDMA frequency range
For 1940-1955MHz/2130-2145MHz, CDMA2000 frequency range is 1920-1935MHz/2110-2125MHz, TD（F/A）
Frequency range be 1880-1900＆2010-2025MHz, TD（E）Frequency range be 2300-2400MHz.
A kind of method of testing of any one foregoing mobile communication multiband sourceless seism test device, including such as
Lower process：
1）Uplink band analysis according to being disturbed produces network formats and the frequency range that passive reflective disturbs；
2）Base station and the connection of antenna-feedback system or passive compartment system are disconnected, antenna-feedback system or passive compartment system are led to mobile
The output port of letter multiband sourceless seism test device is connected, and frequency spectrograph and mobile communication multiband sourceless seism are surveyed
The receiving port that trial assembly is put is connected, and the frequency range of the receiving port is adapted with disturbed frequency range；
3）The signal generator of mobile communication multiband sourceless seism test device is adjusted, it is sent one or more
The signal of corresponding band and bandwidth is tested；
4）The power output of mobile communication multiband sourceless seism test device is adjusted, at the same time observes and is disturbed on frequency spectrograph
The signal condition of frequency range, untill interference signal is observed, then successively to the passive of antenna-feedback system or passive compartment system
Device is tested, until finding out reflection interference source and being handled.
In the present invention, if analysis show that the band downlink for producing interference is included in this instrument band downlink, set
The signal that signal generator sends one or more identical frequency spectrum and bandwidths is tested；If it is descending to be not included in this instrument
In frequency range, then setting signal generator sends frequency range similar in one or more but bandwidth identical signal carries out equivalent simulation.
The invention has the advantages that：
1st, integrated level height reduces the difficulty of interference investigation work.At present in work is investigated, a project team needs outfit more
Platform intermodulation instrument, can be undoubtedly that the investigation work of cordless communication network reflection interference causes huge obstruction so.And the present invention is answering
Used time only needs one tester of carrying to investigate passive reflective interference caused by various frequency ranges.
2nd, precision height realizes the investigation work to lower interference signal.Currently used intermodulation instrument can not position intermodulation
Interference signal is smaller but strongly disturbing passive wideband spurious reflections interference can be formed to base station, and the present invention can be by frequency spectrograph
The complete of frequency range is presented to assist in finding weaker passive wideband spurious reflections interference.
3rd, cost is relatively low is easy to promote.Compared with existing intermodulation instrument, the present invention does not need high-precision receiver and height
The display screen of quality, only so, it need to can substantially reduce production cost by the good frequency spectrograph of frequency spectrum display effect.
Brief description of the drawings
In order to illustrate more clearly of embodiments of the invention, below by describing what is used required in the embodiment of the present invention
Accompanying drawing is briefly described.It will be apparent that drawings in the following description are only some embodiments described in the present invention, it is right
For those skilled in the art, without creative efforts, it can also be obtained according to following accompanying drawing
Its accompanying drawing.
Fig. 1 is that the structure of one specific embodiment of mobile communication multiband sourceless seism test device of the present invention is shown
It is intended to；
Fig. 2 is the structural representation of embodiment 1.
Wherein, parts title corresponding to reference is as follows：1st, housing, 2, output port, 3, multiplefrequency mixer, 4, letter
Number generator, the 41, first signal generator, 42, secondary signal generator, the 43, the 3rd signal generator, the 44, the 4th signal hair
Raw device, 5, same to frequency combiner, the 51, first same frequency combiner, the 52, second same frequency combiner, 6, amplifirer, the 61, first amplifirer,
62nd, the second amplifirer, 7, receiving port, the 71, first uplink band receiving port, the 72, second uplink band receiving port, 73,
3rd uplink band receiving port.
Embodiment
In order that those skilled in the art more fully understands the present invention, below in conjunction with the accompanying drawing in the embodiment of the present invention
Clear, complete description is carried out to the technical scheme in the embodiment of the present invention.It will be apparent that embodiment described below is only
It is the part in the embodiment of the present invention, rather than all.The embodiment recorded based on the present invention, those skilled in the art are not
The other all embodiments obtained in the case of paying creative work, in the scope of protection of the invention.
Embodiment 1
As shown in Figure 1 to Figure 2, mobile communication multiband sourceless seism test device, including housing 1；
Multiplefrequency mixer 3 is provided with housing 1 and processing unit occurs for two downstream signals, respectively the first downstream signal occurs
Processing unit occurs for processing unit and the second downstream signal, the first downstream signal occur the band downlink of processing unit for 920~
1120MHz, it includes the first signal generator 41, secondary signal generator 42, first with frequency combiner 51 and 40W the first work(
Put device 61, the output end of the first signal generator 41 and the output end of secondary signal generator 42 are with first with frequency combiner 51
Corresponding input is connected, and first is connected with the output end of frequency combiner 51 with the input of the first amplifirer 61, wherein, first
ADF4360-7 can be selected in signal generator 41 and secondary signal generator 42, and the first amplifirer 61 can be selected
MRF8P9300HSR6；The band downlink that processing unit occurs for the second downstream signal is 1795~1915MHz, and it includes the 3rd letter
Number generator 43, the 4th signal generator 44, second occur with frequency combiner 52 and 40W the second amplifirer 62, the 3rd signal
The output end of device 43 and the output end of the 4th signal generator 44 are connected with second with 52 corresponding input of frequency combiner, the
Two are connected with the output end of frequency combiner 52 with the input of the second amplifirer 62, wherein, the 3rd signal generator 43 and the 4th
ADF4360-2 can be selected in signal generator 44, and AFT18HW355SR6 can be selected in the second amplifirer 62；First amplifirer 61 it is defeated
The output end for going out end and the second amplifirer 62 is connected with 3 corresponding downlink port of multiplefrequency mixer；
Multiple receiving ports of multiple frequency ranges for being communicated with frequency spectrograph, respectively the first uplink band are provided with housing 1
Receiving port 71, the frequency range of the receiving port are 800~915MHz, the second uplink band receiving port 72, the receiving port
Frequency range is 1130~1785MHz, and the 3rd uplink band receiving port 73, the frequency range of the receiving port is 1930~3000MHz, more
Individual uplink band receiving port is connected with 3 corresponding uplink port of multiplefrequency mixer；
Be provided with the output port 2 for being communicated with antenna-feedback system or passive compartment system in housing 1, output port 2 with it is more
The output end of frequency combiner 3 is connected.
When needing, the descending caused passive reflective signal interferences of investigation China Telecom CDMA800 are up to China Mobile GSM
During 890~909MHz frequency ranges, method and step are as follows：
1st, analysis produces the network formats and frequency range of passive reflective interference：CDMA800, its band downlink are 870~880MHz；
2nd, base station and the connection of antenna-feedback system or passive compartment system are disconnected, by output port 2 of the present invention and antenna-feedback system or nothing
Source distribution system is connected, and then frequency spectrograph is connected on the first uplink band receiving port 71；
3rd, because CDMA800 band downlinks are 870~880MHz, the band downlink of this instrument does not include CDMA800 band downlinks,
Then can with CDMA800 band downlinks similar in 920~930MHz frequency ranges carry out equivalent simulation, due to the two frequency range phases
Closely, it can cause that passive reflective interference signal is very nearly the same caused by passive device.This instrument is set to produce and cdma base station band
It is wide close（1.23MHz）With power identical signal；
4th, the signal condition of 890~909MHz frequency ranges is observed on frequency spectrograph, if it is observed that interference signal, then successively to antenna feeder
The passive device of system or passive compartment system is tested, until finding out passive reflective interference source and being handled.
As described above, passive reflective interference source can preferably be found, distributed according to the current wireless communication frequency of China,
Researching and developing instrument according to embodiment 1 can help to investigate most passive reflective interference.
Above content is to combine the further description that specific preferred embodiment is made to the present invention, it is impossible to assert this
The embodiment of invention is confined to these explanations.For general technical staff of the technical field of the invention,
The other embodiment drawn in the case where not departing from technical scheme, should be included within the scope of the present invention.
Claims (9)
1. mobile communication multiband sourceless seism test device, it is characterised in that：Including housing（1）；
Housing（1）Inside it is provided with multiplefrequency mixer（3）Occur processing unit with multiple downstream signals of multiple frequency ranges, i.e., under first
Line frequency section processing unit ... N band downlink processing units, each band downlink processing unit include same frequency combiner（5）、
Amplifirer（6）And multiple signal generators（4）, multiple signal generators（4）Output end and same frequency combiner（5）It is corresponding defeated
Enter end to be connected, same to frequency combiner（5）Output end and amplifirer（6）Input be connected, multiple band downlink processing units
Amplifirer（6）Output end and multiplefrequency mixer（3）Corresponding downlink port is connected；
Housing（1）Inside it is provided with multiple receiving ports of multiple frequency ranges（7）, i.e., on the first uplink band receiving port ... N
Line frequency section receiving port, multiple uplink band receiving ports and multiplefrequency mixer（3）Corresponding uplink port is connected；
Housing（1）Inside it is provided with output port（2）, output port（2）With multiplefrequency mixer（3）Output end be connected.
2. mobile communication multiband sourceless seism test device according to claim 1, it is characterised in that：The signal hair
Raw device（4）From adaptive-bandwidth signal generator.
3. mobile communication multiband sourceless seism test device according to claim 2, it is characterised in that：Multiple letters
Number generator（4）Bandwidth selection 100KHz, 200KHz, 1.23MHz, 2 MHz, 5 MHz, 10 MHz, 15 MHz or 20
One or several kinds in MHz.
4. mobile communication multiband sourceless seism test device according to claim 1, it is characterised in that：The amplifirer
（6）Rated power between 1W ~ 100W.
5. mobile communication multiband sourceless seism test device according to claim 1, it is characterised in that：The amplifirer
（6）Power adjustment stepping be not more than 0.5dB, adjusting range is more than 20dB.
6. mobile communication multiband sourceless seism test device according to claim 1, it is characterised in that：The descending letter
Number occur processing unit quantity be 1 ~ 10.
7. mobile communication multiband sourceless seism test device according to claim 1, it is characterised in that：The receiving terminal
The quantity of mouth is 1 ~ 10.
8. mobile communication multiband sourceless seism test device according to claim 1, it is characterised in that：The multiple frequency
Section includes CDMA800, CDMA2000, GSM900, DCS1800, WCDMA, TDD standard type mobile communication system A, D, E and F-band.
A kind of 9. test side of mobile communication multiband sourceless seism test device as described in any one in claim 1 ~ 8
Method, it is characterised in that：
Including following process：
1）Uplink band analysis according to being disturbed produces network formats and the frequency range that passive reflective disturbs；
2）Base station and the connection of antenna-feedback system or passive compartment system are disconnected, antenna-feedback system or passive compartment system are led to mobile
Believe the output port of multiband sourceless seism test device（2）It is connected, frequency spectrograph and mobile communication multiband is passive dry
The receiving port for disturbing test device is connected, and the frequency range of the receiving port is adapted with disturbed frequency range；
3）Adjust the signal generator of mobile communication multiband sourceless seism test device（4）, make its send one or
The signal of multiple corresponding bands and bandwidth is tested；
4）The power output of mobile communication multiband sourceless seism test device is adjusted, at the same time observes and is disturbed on frequency spectrograph
The signal condition of frequency range, untill interference signal is observed, then successively to the passive of antenna-feedback system or passive compartment system
Device is tested, until finding out reflection interference source and being handled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710791156.XA CN107465464A (en) | 2017-09-05 | 2017-09-05 | Mobile communication multiband sourceless seism tester and method of testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710791156.XA CN107465464A (en) | 2017-09-05 | 2017-09-05 | Mobile communication multiband sourceless seism tester and method of testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107465464A true CN107465464A (en) | 2017-12-12 |
Family
ID=60551077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710791156.XA Pending CN107465464A (en) | 2017-09-05 | 2017-09-05 | Mobile communication multiband sourceless seism tester and method of testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107465464A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664695A (en) * | 2012-05-08 | 2012-09-12 | 中国联合网络通信有限公司广东省分公司 | Multi-signal passive intermodulation test equipment |
| CN103220051A (en) * | 2013-03-29 | 2013-07-24 | 京信通信系统（中国）有限公司 | Mobile communication network interference comprehensive tester |
| CN103368665A (en) * | 2012-03-30 | 2013-10-23 | 中国联合网络通信有限公司广东省分公司 | Multi-signal passive intermodulation test method, equipment and system |
| CN103781085A (en) * | 2013-12-11 | 2014-05-07 | 北京理工大学 | Multi-frequency range TETRA digital cluster detection method and apparatus |
| CN207638671U (en) * | 2017-09-05 | 2018-07-20 | 广东阿尔创通信技术股份有限公司 | Mobile communication multiband sourceless seism tester |
-
2017
- 2017-09-05 CN CN201710791156.XA patent/CN107465464A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368665A (en) * | 2012-03-30 | 2013-10-23 | 中国联合网络通信有限公司广东省分公司 | Multi-signal passive intermodulation test method, equipment and system |
| CN102664695A (en) * | 2012-05-08 | 2012-09-12 | 中国联合网络通信有限公司广东省分公司 | Multi-signal passive intermodulation test equipment |
| CN103220051A (en) * | 2013-03-29 | 2013-07-24 | 京信通信系统（中国）有限公司 | Mobile communication network interference comprehensive tester |
| CN103781085A (en) * | 2013-12-11 | 2014-05-07 | 北京理工大学 | Multi-frequency range TETRA digital cluster detection method and apparatus |
| CN207638671U (en) * | 2017-09-05 | 2018-07-20 | 广东阿尔创通信技术股份有限公司 | Mobile communication multiband sourceless seism tester |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10084235B2 (en) | Feeding matching apparatus of multiband antenna, multiband antenna, and radio communication device | |
| CN108718007B (en) | Antenna device and communication terminal including the same | |
| CN104967494B (en) | A kind of test method, equipment and system | |
| US20160336649A1 (en) | Antenna and Mobile Terminal | |
| CN101237285B (en) | A method for testing wireless interference of GSM dual-mode and dual-idle | |
| CN102386937A (en) | Wireless communication system and method for improving sensitivity of wireless communication system | |
| CN102412913B (en) | A kind of antenna debugging method testing system and communication terminal | |
| CN101557237A (en) | Radio-frequency front-end transceiver and multi-mode mobile terminal | |
| CN105680981B (en) | A kind of Combined type mobile phone signal interference device and its interference method | |
| CN103457549A (en) | Tri-band radio frequency power amplifier and impedance matching method of matching network of tri-band radio frequency power amplifier | |
| CN205681429U (en) | A kind of test device of repeater downgoing reflection inter-modulated signal | |
| EP3657685B1 (en) | B41-based full-band radio frequency device and communication terminal | |
| CN207638671U (en) | Mobile communication multiband sourceless seism tester | |
| CN207409659U (en) | It is a kind of antenna integrated | |
| CN106506130B (en) | Communication means and system and base station and terminal based on carrier wave polymerization | |
| CN107465464A (en) | Mobile communication multiband sourceless seism tester and method of testing | |
| US9906261B2 (en) | RF device based on Band 28 and communication method thereof | |
| Valkonen et al. | Dual-feed, single-CCE antenna facilitating inter-band carrier aggregation in LTE-A handsets | |
| US20120155334A1 (en) | Active antenna system and method for combining signals | |
| CN209545600U (en) | Wireless communication module fixture line loss test macro | |
| CN207338623U (en) | A kind of WIFI antennas of the 5.8GHz frequency ranges of unmanned plane | |
| CN206638706U (en) | A kind of staged impedance transformer test fixture | |
| WO2018153163A1 (en) | Thermal capacity expansion poi device and method | |
| CN103546177B (en) | Radio-frequency (RF) Receiving Device and vehicle-mounted monitoring equipment of eating dishes without rice or wine | |
| CN218772103U (en) | Conducted stray test system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |