CN107181537A - A kind of switch-box for communication base station integration testing - Google Patents
A kind of switch-box for communication base station integration testing Download PDFInfo
- Publication number
- CN107181537A CN107181537A CN201710595104.5A CN201710595104A CN107181537A CN 107181537 A CN107181537 A CN 107181537A CN 201710595104 A CN201710595104 A CN 201710595104A CN 107181537 A CN107181537 A CN 107181537A
- Authority
- CN
- China
- Prior art keywords
- switch
- base station
- box
- integration testing
- communication base
- 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.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/0082—Monitoring; Testing using service channels; using auxiliary channels
- H04B17/0087—Monitoring; Testing using service channels; using auxiliary channels using auxiliary channels or channel simulators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/391—Modelling the propagation channel
- H04B17/3911—Fading models or fading generators
Abstract
The invention discloses a kind of switch-box for communication base station integration testing, including low intermodulation attenuator, coaxial switch and the amendment device being sequentially connected；The amendment device includes power splitter or circulator.Using the present invention, the A ports FDD measured signals of base station equipment are decayed by low intermodulation attenuator, then are transferred to amendment device by coaxial switch, are finally transmitted to frequency spectrograph, output result；Structure optimization, it can be seen that integration, ease for use, reliability, automation, the requirement of standardization have been reached, also with the function such as effective thermal diffusivity and reliability.
Description
Technical field
It is used for the integrated survey of communication base station the present invention relates to the function of base station and testing performance index equipment, more particularly to one kind
The switch-box of examination, the efficient and reliable of integrated test system is automated for FDD LTE and NB-IOT communication standard products
Build.
Background technology
With the development of mechanics of communication, in wireless telecommunications, the communication network of various standards is constantly updated, in order to meet people
The demand that increasingly all increases to network, the technology of forth generation mobile communcations system network also continuous renewal change into.Network communication
Quality and the network coverage have turned into the leading indicator that major operators are competed.
Meanwhile, the new generation of wireless communication technology occurs in that new branch on the basis of FFD LTE：For Internet of Things
NB-IOT communication standards.Base station performance that the new generation of wireless communication technology is related to, functional test are related to the reliable of base station of arranging net
Property, also as cost, the key factor of race between major equipment vendors and operator.
As communication apparatus measuring technology reaches its maturity, developing direction is also towards automation, miniaturization, higher precision hair
Exhibition.It is integration especially to base station radio-frequency test interface, easy-to-use the need for traditional means of testing can not meet test
Property, reliability, automation, standardization etc., it is proposed that higher requirement.
The content of the invention
The invention discloses a kind of device for communication base station integration testing；By integrated multigroup low intermodulation attenuator,
High-performance coaxial radio-frequency switch and wide-band power splitter or the hardware testing switch-box HRCSF that circulator is main devices, knot
The automatic test platform software with test rights management, test case editor and execution matched is closed, many are realized
The greater number of ports of RRU automate integration testing parallel, reduce the time used of environmental structure and TCH test channel switching, carry
Test execution efficiency is risen, test environment objectivity is embodied.
Low intermodulation attenuator, coaxial switch that the present invention includes being sequentially connected for the switch-box of communication base station integration testing
And amendment device；The amendment device includes power splitter or circulator.Using the present invention, the A ports FDD of base station equipment is treated
Survey signal by low intermodulation attenuator to be decayed, then amendment device is transferred to by coaxial switch, be finally transmitted to frequency spectrograph, it is defeated
Go out result.
In the present invention, low intermodulation attenuator is a plurality of；Multigroup low intermodulation attenuator per measured signal all the way to declining
Subtract, and ensure the low intermodulation characteristic of signal, limit the PIM of low intermodulation attenuator<-155dBc、VSWR<1.3rd, flatness<±
2dB, while its power margin, frequency range and pad value can be changed according to application scenarios, interface shape includes N-type female.
In the present invention, coaxial switch is a plurality of high-performance radio-frequency coaxial switches, and it meets test needs, is production purchased in market
Product, complete the conducting and off-state switching to test access；Coaxial switch frequency range is limited as DC-18GHz, VSWR<
1.2nd, switching time<20ms, interface shape includes SMA type females.
In the present invention, power splitter is broadband power divider, and frequency range is 600-6000MHz, and power capacity is not less than 20W,
Port standing-wave ratio<1.5, it thereby may be ensured that Devices to test port to frequency spectrograph port, signal source port to Devices to test port
Conducting, there is certain isolation between frequency spectrograph port and signal source port.
Hardware testing switch-box HRCSF of the present invention way of realization includes multigroup low intermodulation attenuator, high-performance radio-frequency
Coaxial switch, wide-band power splitter or the highly integrated combination of circulator three-stage；For from base station port to be measured to test
In FDD LTE and NB-IOT base station integrated test systems and device between instrument.
Further, the switch-box for communication base station integration testing also includes casing, and low intermodulation can decay
Device, coaxial switch and amendment device are placed in casing, and casing can complete internal components, external interface, visualization touch-screen
Install, the shielding of internal/external signal, and equipment is possessed certain thermal diffusivity and reliability stress demand；It is preferred that, box house
Provided with mounting bracket, installed for support and each part；It is preferred that, casing is provided with heat emission hole, and further preferred heat emission hole is located at
Body side and/or top, heat emission hole are square distribution.
Further, the switch-box for communication base station integration testing also includes interface, and it may be mounted at casing
Side wall；Interface includes equipment interface（Measurement equipment port, test instrumentation port）, power control key（Power interface, switching on and shutting down are pressed
Key, earthing rod）, data-interface（Network interface, serial line interface）, preferably connect including Devices to test port, test instrumentation port, power supply
Mouth, switching on and shutting down button, RJ45 network interfaces, USB interface or BNC earthing rods, wherein Devices to test port are the signals of equipment under test
Input, output port, single port input power limit it is consistent with the power margin of low intermodulation attenuator, port number according to
Testing requirement is expansible；Test instrumentation port is input, is output to the interconnection port of instrument, the power limit of test instrumentation port
No more than 20W, when a port preferably is used alone, another port needs plus matched load；Power interface is the present apparatus
Power input terminal；Switching on and shutting down button can be the power switch of device；RJ45 network interfaces are remote control and switch-box version
The network interface of upgrading；USB interface is screen version upgrade interface；BNC earthing rods are the ground interface of the present apparatus.
Further, the switch-box for communication base station integration testing also includes input unit, preferably visualizes and touches
Screen is touched, version information, the effect of the ip addresses of setting device of inquiry unit can be achieved, can also be controlled with touch-sensitive display each
The conducting state of way switch, it, which can pacify, turns outside the enclosure side wall.
Further, the switch-box for communication base station integration testing also includes automatic test control module, one
As be integrated on mainboard, by conventional api interface to equipment perform set and inquiry operation, with input unit and miscellaneous part
Conventional connection, user can carry out channel selecting and configuration by unified command format, and PC is configured into net identical with equipment
Section, you can remotely operated to facility switching.
The invention also discloses the part for communication base station integration testing, including be sequentially connected low intermodulation attenuator,
Coaxial switch and amendment device；The amendment device includes power splitter or circulator.
The invention provides the high integration in communication equipment test process, high reliability, efficient means of testing are full
Foot in the integration testing of FDD LTE and FDD LTE+NB-IOT base stations, intermodulation characteristic, large power test to test environment
High request in adaptability and stability, the testing efficiency of multiple passage switch tests.Meet communication apparatus measuring technology day
Become ripe, automation, miniaturization, higher precision developing direction, solves the need for traditional means of testing can not meet test,
Asking for the requirements such as integration, ease for use, reliability, automation, the standardization of base station radio-frequency test interface can not especially be met
Topic.With the overall application of FDD LTE and NB-IOT base stations, test scene is widely.
Brief description of the drawings
Fig. 1 is the structural representation for the switch box body that embodiment one is used for communication base station integration testing；
Fig. 2 is the structural representation for the switch-box box back surface that embodiment one is used for communication base station integration testing；
Fig. 3 is the low intermodulation attenuator of embodiment one, high-performance radio-frequency coaxial switch, the connection diagram of wide-band power splitter；
Fig. 4 is the low intermodulation attenuator of embodiment two, high-performance radio-frequency coaxial switch, the connection diagram of circulator；
Wherein, casing 1, visualization touch-screen 2, test instrumentation port 3, self-locking type switch machine button 4, heat emission hole 5, Devices to test
Port 6, power interface 7, RJ45 network interfaces 8, USB port 9, BNC earthing rods 10, low intermodulation attenuator 11, coaxial switch 12, power splitter
13rd, circulator 14.
Embodiment
In the present invention, the PIM of low intermodulation attenuator<-155dBc、VSWR<1.3rd, flatness<± 2dB, interface shape includes
N-type female；Coaxial switch frequency range is DC-18GHz, VSWR<1.2nd, switching time<20ms, it is female that interface shape includes SMA types
Head；The frequency range of power splitter is 600-6000MHz, and power capacity is not less than 20W, port standing-wave ratio<1.5.
Embodiment one
Switch-box for communication base station integration testing（Referred to as HRCSF）, including casing, it is low that box house installation is sequentially connected
The mainboard of intermodulation attenuator, coaxial switch and power splitter, integrated automation testing control module, belongs to available circuit connection.
Referring to accompanying drawing 1, the front of casing 1 is equipped with visualization touch-screen 2, test instrumentation port 3, self-locking type switch machine button 4,
The heat emission hole 5 of rectangular profile is arranged at body side and top；Box house of the present invention uses the metal main joist first with screw hole
Carry out main support and panel is fixed, the metal false keel first of mating band screw hole carries out the fixation and adjustment of internal components, specifically
Mounting means belongs to mechanical erection conventional meanses.Referring to accompanying drawing 2, box back surface has each 8 Devices to test ports 6 up and down and some
Screw hole, provided with power interface 7, RJ45 network interfaces 8, USB port 9 and BNC earthing rods 10.Casing is additionally provided with conventional screw hole, is used for
Install or observe, also spare interface, be conventional design.
In the present embodiment, some conventional designs such as screw hole, mainboard（Miscellaneous part）Specific installation not influence technique
The realization of effect, in order to not mark succinctly, while the repeat element of FIG. 3 below -4 is more, in order to not influence the succinct of accompanying drawing, is only marked
At note one.
After the switch-box start for communication base station integration testing of the present invention, by LCDs control interface to 12
Individual Devices to test port and 2 test instrumentation ports, which carry out touch operation, can open respective channel, by frequency spectrograph and signal source
Connected with passage to be measured, the corresponding position of the switch is shown in green；After start, by LCDs Config interface queries and
The IP and port of this equipment are changed, network settings function is completed, and can One-key recovery Default Value.
Referring to accompanying drawing 3, test cell includes 12 low intermodulation attenuator 11, the 3 high-performance coaxial switches being sequentially connected
12 and broadband power divider 13, with the FDD downstream signal indexs of testing base station A ports, inside uses wide-band power splitter, to be situated between
Continue hardware testing switch-box HRCSF testing procedures.As shown in Figure 3：
When selecting A ports by visualization touch-screen, the A ports FDD measured signals of base station equipment pass through low intermodulation attenuator
Decayed, then wide-band power splitter is transferred to by two-stage high-performance radio-frequency coaxial switch, broadband power divider is signal work(point
After be transmitted to frequency spectrograph, frequency spectrograph outputs test result, as a result accurately, error be less than one thousandth, it is as a result highly desirable, avoid simultaneously
The environmentally friendly Cost Problems that shielding coating is brought.
Embodiment two
For the switch-box of communication base station integration testing, in addition to power splitter is replaced with into circulator, remaining with embodiment one by one
Cause, with the NB-IOT uplink signal targets of testing base station A ports, inside uses circulator, to introduce test hardware testing switch
Case HRCSF steps.As shown in figure 4, to include the 12 low intermodulation attenuator 11 that is sequentially connected, 3 high-performance coaxial for test cell
Switch 12 and circulator 14：
When selecting A ports by visualization touch-screen, signal source exports the NB-IOT signals of any level；The signal passes through ring
Shape device, then low intermodulation attenuator is transferred to by two-stage high-performance radio-frequency coaxial switch decayed, the signal transmission after decay
A ports to base station to be measured demodulate packet loss, change signal source level, repeat demodulation, test out demodulation threshold, as a result accurate
Really, error is less than one thousandth.
Embodiment three
For the switch-box of communication base station integration testing, in addition to 12 low intermodulation attenuators are increased into 16, remaining and reality
Apply example one consistent, switch-box HRCSF testing base stations signal results are accurate, error is less than one thousandth.
Example IV
For the switch-box of communication base station integration testing, in addition to 12 low intermodulation attenuators are reduced to 8, remaining and implementation
Example one is consistent, and switch-box HRCSF testing base stations signal results are accurate, and error is less than one thousandth.
Embodiment five
For the switch-box of communication base station integration testing, in addition to visualization touch-screen replaces with computer, remaining and embodiment one
Unanimously, switch-box HRCSF testing base stations signal results are accurate, and error is less than one thousandth.
The frequency range that the above-mentioned switch-box HRCSF for communication base station integration testing is supported is 698-2700MHz, input
Tolerance power<100W, reverse tolerance power<20W, insertion loss is 45 ± 2dB, inputs isolation>70dB, standing-wave ratio<1.30,
System inputs intermodulation index<- 155dBc, coaxial switch switching time<20ms, coaxial switch repeatability<0.03dB.The present invention
Configuration is reasonable, structure optimization, it can be seen that reached integration, ease for use, reliability, automation, the requirement of standardization, also
With the function such as effective thermal diffusivity and reliability, for from base station port to be measured to the FDD LTE and NB- test instrumentation
In IOT base stations integrated test system and device.
Apply specific embodiment in the present apparatus to be set forth the principle and embodiment of the present apparatus, above example
Explanation be only intended to help the method for understanding the present apparatus and its core concept；Simultaneously for those of ordinary skill in the art,
According to the thought of the present apparatus, it will change in specific embodiments and applications, especially the end of device under test
Mouthful type, port number, the increase and decrease in low intermodulation attenuator number, the increasing of high-performance radio-frequency coaxial switch number and switch series
Subtract, the change in the electrical characteristic parameter such as frequency range, power, intermodulation characteristic that core devices are supported is covered in this patent
In the range of.In summary, this technology tell somebody what one's real intentions are book content should not be construed as to the present apparatus be embodied on limitation.
Claims (10)
1. the switch-box for communication base station integration testing, it is characterised in that the switch for communication base station integration testing
Case includes the low intermodulation attenuator, coaxial switch and amendment device being sequentially connected；It is described amendment device include power splitter or
Circulator.
2. it is used for the switch-box of communication base station integration testing according to claim 1, it is characterised in that the low intermodulation decay
Device is a plurality of；The PIM of the low intermodulation attenuator<-155dBc、VSWR<1.3rd, flatness<±2dB；The low intermodulation decay
The interface shape of device includes N-type female.
3. it is used for the switch-box of communication base station integration testing according to claim 1, it is characterised in that the coaxial switch is
A plurality of high-performance radio-frequency coaxial switches；The coaxial switch frequency range is DC-18GHz, VSWR<1.2nd, switching time<
20ms；The interface shape of the coaxial switch includes SMA type females.
4. it is used for the switch-box of communication base station integration testing according to claim 1, it is characterised in that the frequency of the power splitter
Rate scope is 600-6000MHz, and power capacity is not less than 20W, port standing-wave ratio<1.5.
5. it is used for the switch-box of communication base station integration testing according to claim 1, it is characterised in that described to be used for the base that communicates
Stand integration testing switch-box also include casing.
6. it is used for the switch-box of communication base station integration testing according to claim 5, it is characterised in that the box house is set
There is mounting bracket；The casing is provided with heat emission hole.
7. it is used for the switch-box of communication base station integration testing according to claim 1, it is characterised in that described to be used for the base that communicates
Stand integration testing switch-box also include interface.
8. it is used for the switch-box of communication base station integration testing according to claim 7, it is characterised in that the interface includes setting
Standby interface, power control key, data-interface.
9. it is used for the switch-box of communication base station integration testing according to claim 1, it is characterised in that described to be used for the base that communicates
Stand integration testing switch-box also include input unit or automatic test control module.
10. the part for communication base station integration testing, it is characterised in that the part bag for communication base station integration testing
Include the low intermodulation attenuator being sequentially connected, coaxial switch and amendment device；The amendment device includes power splitter or annular
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710595104.5A CN107181537A (en) | 2017-07-20 | 2017-07-20 | A kind of switch-box for communication base station integration testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710595104.5A CN107181537A (en) | 2017-07-20 | 2017-07-20 | A kind of switch-box for communication base station integration testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107181537A true CN107181537A (en) | 2017-09-19 |
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ID=59837873
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710595104.5A Pending CN107181537A (en) | 2017-07-20 | 2017-07-20 | A kind of switch-box for communication base station integration testing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108319562A (en) * | 2017-12-26 | 2018-07-24 | 北京航天测控技术有限公司 | High-precision broadband millimeter-wave 8x8 matrix switches and microwave parameters assess calibration method |
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| CN202662762U (en) * | 2012-07-03 | 2013-01-09 | 合肥威科电子技术有限公司 | High-power low intermodulation attenuator |
| CN103929253A (en) * | 2013-12-26 | 2014-07-16 | 天维讯达无线电设备检测（北京）有限责任公司 | Radio frequency switching device for model approval DFS test |
| CN106603169A (en) * | 2016-12-16 | 2017-04-26 | 苏州永安丰新能源科技有限公司 | Reliability test switch case |
| CN207369047U (en) * | 2017-07-20 | 2018-05-15 | 苏州永安丰新能源科技有限公司 | A kind of switch-box for communication base station integration testing |
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2017
- 2017-07-20 CN CN201710595104.5A patent/CN107181537A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202662762U (en) * | 2012-07-03 | 2013-01-09 | 合肥威科电子技术有限公司 | High-power low intermodulation attenuator |
| CN103929253A (en) * | 2013-12-26 | 2014-07-16 | 天维讯达无线电设备检测（北京）有限责任公司 | Radio frequency switching device for model approval DFS test |
| CN106603169A (en) * | 2016-12-16 | 2017-04-26 | 苏州永安丰新能源科技有限公司 | Reliability test switch case |
| CN207369047U (en) * | 2017-07-20 | 2018-05-15 | 苏州永安丰新能源科技有限公司 | A kind of switch-box for communication base station integration testing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108319562A (en) * | 2017-12-26 | 2018-07-24 | 北京航天测控技术有限公司 | High-precision broadband millimeter-wave 8x8 matrix switches and microwave parameters assess calibration method |
| CN108319562B (en) * | 2017-12-26 | 2020-09-08 | 北京航天测控技术有限公司 | High-precision broadband millimeter wave 8x8 matrix switch and microwave parameter evaluation and calibration method |
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