CN207369047U - 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
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- CN207369047U CN207369047U CN201720883930.5U CN201720883930U CN207369047U CN 207369047 U CN207369047 U CN 207369047U CN 201720883930 U CN201720883930 U CN 201720883930U CN 207369047 U CN207369047 U CN 207369047U
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- base station
- integration testing
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Abstract
The utility model discloses a kind of switch-box for communication base station integration testing, including sequentially connected low intermodulation attenuator, coaxial switch and amendment device；The amendment device includes power splitter or circulator.Using the utility model, 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, export result；Structure optimization, it can be seen that reached integration, ease for use, reliability, automation, the requirement of standardization, also there is effective thermal diffusivity and reliability etc..
Description
Technical field
The function and testing performance index equipment of base station are the utility model is related to, more particularly to one kind is used for communication base station collection
Into the switch-box of test, for FDD LTE and NB-IOT communication standard products automation integrated test system efficient and can
That leans on builds.
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 constantly update repeatedly into.Network communication
Quality and the network coverage have become the leading indicator of major operator competition.
Meanwhile there is new branch on the basis of FFD LTE in the new generation of wireless communication technology：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 vendor and operator.
As communication apparatus measuring technology reaches its maturity, developing direction is also towards automation, miniaturization, higher precision hair
Exhibition.Traditional means of testing can not meet the needs of test, integration especially to base station radio-frequency test interface, easy-to-use
Property, reliability, automation, standardization etc., it is proposed that the requirement of higher.
The content of the invention
The utility model discloses a kind of device for communication base station integration testing；Decayed by integrated multigroup low intermodulation
Device, high-performance coaxial radio-frequency switch and wide-band power splitter or the hardware testing switch-box HRCSF that circulator is main devices,
With reference to the automatic test platform software with test rights management, test case editor and execution to match, realize more
The greater number of ports of platform RRU automate integration testing parallel, reduce the time used of environmental structure and TCH test channel switching,
Test execution efficiency is lifted, embodies test environment objectivity.
The switch-box that the utility model is used for communication base station integration testing includes sequentially connected low intermodulation attenuator, coaxial
Switch and amendment device；The amendment device includes power splitter or circulator.Utilize the utility model, the A of base station equipment
Port FDD measured signals are decayed by low intermodulation attenuator, then are transferred to amendment device by coaxial switch, are finally transmitted to
Frequency spectrograph, exports result.
In the utility model, low intermodulation attenuator is a plurality of；Multigroup low intermodulation attenuator to per measured signal all the way into
Row decay, 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 replaced according to application scenarios, interface form includes N-type female.
In the utility model, coaxial switch is a plurality of high-performance radio-frequency coaxial switches, it meets test needs, is purchased in market
Product, completes conducting and off-state switching to test access；Coaxial switch frequency range is limited as DC-18GHz, VSWR<
1.2nd, switching time<20ms, interface form include SMA type females.
In the utility model, power splitter is broadband power divider, frequency range 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 turns on, and has certain isolation between frequency spectrograph port and signal source port.
The way of realization of the utility model hardware testing switch-box HRCSF includes multigroup low intermodulation attenuator, high-performance
The combination that RF coaxial switchs, wide-band power splitter or circulator three-stage are highly integrated；For from base station port to be measured to
In FDD LTE and NB-IOT base station integrated test systems and device between test instrumentation.
Further, the switch-box for communication base station integration testing further includes babinet, and low intermodulation can decay
Device, coaxial switch and correct device and be placed in babinet, babinet can complete internal components, external interface, visualization touch-screen
Installation, the shielding of internal/external signal, and equipment is possessed certain thermal diffusivity and reliability stress demand；Preferably, box house
Equipped with mounting bracket, it is used to support and each component is installed；Preferably, babinet is equipped 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 further includes interface, it may be mounted at babinet
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 is preferably 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 further includes input unit, and preferably visualization is touched
Touch screen, it can be achieved that the version information of inquiry unit, set device ip addresses effect, 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 further includes automatic test control module, and 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, PC machine configured net identical with equipment
Section, you can remotely operated to facility switching.
The invention also discloses the component for communication base station integration testing, including sequentially connected low intermodulation decay
Device, coaxial switch and amendment device；The amendment device includes power splitter or circulator.
The utility model provides the high integration in communication equipment test process, high reliability, efficient test hand
Section, meets in the integration testing of FDD LTE and FDD LTE+NB-IOT base stations, intermodulation characteristic to test environment, high-power
The adaptability and stability of test, multiple passage switch tests testing efficiency on high request.Meet communication apparatus test
Technology reaches its maturity, automates, minimizing, higher precision developing direction, and solving traditional means of testing can not meet to test
Needs, can not especially meet that the integration of base station radio-frequency test interface, ease for use, reliability, automation, standardization etc. will
The problem of asking.As the overall application of FDD LTE and NB-IOT base stations, test scene are very extensive.
Brief description of the drawings
Fig. 1 is the structure diagram for the switch box body that embodiment one is used for communication base station integration testing；
Fig. 2 is the structure diagram for the switch-box box back surface that embodiment one is used for communication base station integration testing；
Fig. 3 is one low intermodulation attenuator of embodiment, high-performance radio-frequency coaxial switch, the connection signal of wide-band power splitter
Figure；
Fig. 4 is two low intermodulation attenuator of embodiment, high-performance radio-frequency coaxial switch, the connection diagram of circulator；
Wherein, babinet 1, visualization touch-screen 2, test instrumentation port 3, self-locking type switch machine button 4, heat emission hole 5, to be measured
Device port 6, power interface 7, RJ45 network interfaces 8, USB port 9, BNC earthing rods 10, low intermodulation attenuator 11, coaxial switch 12, work(
Divide device 13, circulator 14.
Embodiment
In the utility model, the PIM of low intermodulation attenuator<-155dBc、VSWR<1.3rd, flatness<± 2dB, interface form
Including N-type female；Coaxial switch frequency range is DC-18GHz, VSWR<1.2nd, switching time<20ms, interface form include SMA
Type female；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 babinet, box house installation is sequentially connected
Low intermodulation attenuator, coaxial switch and power splitter, the mainboard of integrated automation testing control module, belong to available circuit company
Connect.
Referring to attached drawing 1, the front of babinet 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；The utility model box house uses the main dragon of the metal with screw hole
Bone first carries out main support and panel is fixed, and the metal false keel first of mating band screw hole carries out the fixation and adjustment of internal components,
Specific mounting means belongs to mechanical erection conventional means.Referring to attached drawing 2, box back surface have each 8 Devices to test ports 6 up and down and
Some screw holes, equipped with power interface 7, RJ45 network interfaces 8, USB port 9 and BNC earthing rods 10.Babinet is additionally provided with conventional screw hole,
For installing or observing, there is 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 not to influence the succinct of attached drawing, only marks
At note one.
After the switch-box start for communication base station integration testing of the utility model, pass through liquid crystal display control interface
Respective channel can be opened by carrying out touch operation to 12 Devices to test ports and 2 test instrumentation ports, by frequency spectrograph and letter
Number source is connected with passage to be measured, and the corresponding position of the switch is shown in green；After start, looked into by liquid crystal display Config interfaces
The IP and port of this equipment are ask and changed, completes network settings function, and can One-key recovery default setting.
Referring to attached drawing 3, test cell includes sequentially connected 12 low 11,3 high-performance coaxial switches of intermodulation attenuator
12 and broadband power divider 13, with the FDD downlink 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 are declined by low intermodulation
Subtract device to decay, then wide-band power splitter is transferred to by two-stage high-performance radio-frequency coaxial switch, broadband power divider is signal
Frequency spectrograph is transmitted to after work(point, frequency spectrograph outputs test result, and as a result accurately, error is less than one thousandth, as a result highly desirable, at the same time
Avoid the environmentally friendly cost problem 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 circulator, remaining and embodiment
One is consistent, and with the NB-IOT uplink signal targets of testing base station A ports, inside uses circulator, to introduce test hardware testing
Switch-box HRCSF steps.As shown in figure 4, test cell includes sequentially connected 12 low 11,3 high-performance of intermodulation attenuator
Coaxial 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
Circulator is crossed, then low intermodulation attenuator is transferred to by two-stage high-performance radio-frequency coaxial switch and is decayed, the signal after decay
The A ports demodulation packet loss of base station to be measured is transferred to, signal source level is changed, repeats to demodulate, test out demodulation threshold, tie
Fruit is accurate, and 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 to 16, remaining
Consistent with embodiment one, switch-box HRCSF testing base station signal results are accurate, and 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 with
Embodiment one is consistent, and switch-box HRCSF testing base station 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 implementation
Example one is consistent, and switch-box HRCSF testing base station 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 are 45 ± 2dB, input isolation>70dB, standing-wave ratio<1.30
System inputs intermodulation index<- 155dBc, coaxial switch switching time<20ms, coaxial switch repeatability<0.03dB.
The utility model configuration is reasonable, structure optimization, it can be seen that reached integration, ease for use, reliability, automation, mark
The requirement of standardization, also has the function of effective thermal diffusivity and reliability etc., for from base station port to be measured to test instrumentation
FDD LTE and NB-IOT base station integrated test systems and device in.
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 to understand the method and its core concept of the present apparatus；Meanwhile for those of ordinary skill in the art,
End according to the thought, in specific embodiments and applications there will be changes, especially device under test of the present apparatus
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, frequency range that core devices are supported, power, the change in the electrical characteristic parameter such as intermodulation characteristic, are covered in this patent
In the range of.In conclusion this technology is told somebody what one's real intentions are, book content should not be construed as to the limitation in present apparatus specific implementation.
Claims (9)
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 sequentially connected low intermodulation attenuator, coaxial switch and corrects device；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 form 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 form 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
The switch-box of integration testing of standing further includes babinet.
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 babinet is equipped 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
The switch-box of integration testing of standing further includes 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
The switch-box of integration testing of standing further includes input unit or automatic test control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720883930.5U CN207369047U (en) | 2017-07-20 | 2017-07-20 | A kind of switch-box for communication base station integration testing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720883930.5U CN207369047U (en) | 2017-07-20 | 2017-07-20 | A kind of switch-box for communication base station integration testing |
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| CN207369047U true CN207369047U (en) | 2018-05-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181537A (en) * | 2017-07-20 | 2017-09-19 | 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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- 2017-07-20 CN CN201720883930.5U patent/CN207369047U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181537A (en) * | 2017-07-20 | 2017-09-19 | 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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