CN209526892U - A kind of small base station testing device and system - Google Patents
A kind of small base station testing device and system Download PDFInfo
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- CN209526892U CN209526892U CN201920728796.0U CN201920728796U CN209526892U CN 209526892 U CN209526892 U CN 209526892U CN 201920728796 U CN201920728796 U CN 201920728796U CN 209526892 U CN209526892 U CN 209526892U
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Abstract
The utility model embodiment provides a kind of small base station testing device and system, wherein small base station testing device includes the uplink test link module being arranged in shield test reactor box and shield test reactor box and downlink test link module；Uplink tests link module and carries out uplink test to the small base station to be measured inside shield test reactor box for connecting signal source；Downlink test link module carries out downlink test to small base station to be measured for connecting frequency spectrograph.Small base station testing device and system provided by the embodiment of the utility model, test error caused by avoiding because of interference, it is ensured that the accuracy of test data.Furthermore, the device is provided with uplink test link module in shield test reactor box and downlink tests link module, simplify small base station testing platform builds step, improve testing efficiency, the testing time has been saved, the operating procedure of tester is reduced, has avoided the error as caused by manual operation, the requirement to tester is reduced, tester's cultivation cycle is shortened.
Description
Technical field
The utility model relates to mobile communication technology field more particularly to a kind of small base station testing device and system.
Background technique
Small base station (small cell) is a kind of from product form, transmission power, coverage area etc., both less than traditional
The base station equipment of macro base station.Small base station is small in size, and deployment flexibly, can flexible portion without being confined to the site problem of macro base station
Administration targetedly supplements the weak overlay area of macro base station signal, covering blind spot, guarantees signal matter in the place of crowd's building dense
Amount, and channeling is carried out in hot spot region, hoist capacity helps macro base station to shunt.
Pair in current small base station testing specification, the radio frequency testing of small base station includes the test of transmitter and receiver, i.e.,
The forward link of base station signal is answered to test and reverse link test.For radio frequency testing, first, either traditional repeater,
Or novel small base station at present, tester will not only be perfectly clear test specification and test method in professional standard, and
And extremely must also expertly grasp building for operation to test instrumentation and various complicated test environment, radio frequency testing for
Tester's profession with higher requires；Second, the needs of building of test environment take considerable time that especially uplink and downlink is surveyed
The switching in test ring border；Third, useful signal is easy to be influenced by context in the test of small base station radio-frequency, cause to test
Data inaccuracy.
Utility model content
The utility model embodiment provides a kind of small base station testing device and system, to solve existing small base station testing
High, environmental structure time-consuming, useful signal is required to be easy the problem of being influenced by environment tester.
In a first aspect, the utility model embodiment provides a kind of small base station testing device, including shield test reactor box, Yi Jisuo
State the uplink test link module being arranged in shield test reactor box and downlink test link module；
Uplink test link module for connecting signal source to the small base station to be measured inside the shield test reactor box into
The test of row uplink；The downlink test link module carries out downlink test to the small base station to be measured for connecting frequency spectrograph.
Preferably, it is additionally provided in the shield test reactor box including test switching switch；
Test switching switch respectively with uplink test link module, downlink test link module with it is described
Small base station connection to be measured；
Test switching switch for control the small base station to be measured and uplink test link module and it is described under
Connection between row test link module.
Preferably, the uplink test link module includes that the first uplink tests link module, the first uplink test
Link module includes isolator and the first upstream attenuation device；
One end of the isolator is for connecting master source, the other end of the isolator and first upstream attenuation
One end of device connects, the other end of the first upstream attenuation device and test switching switch connection.
Preferably, the uplink test link module further includes the second uplink test link module and power splitter；
Second uplink test link module includes that interference signal source switch, the second upstream attenuation device, third uplink decline
Subtract device, uplink bandstop filter and uplink selection switch；Wherein, the interference signal source switch is for controlling interference signal
Connection between source and the second upstream attenuation device and the third upstream attenuation device, the second upstream attenuation device with it is described
Uplink selection switch connection, the third upstream attenuation device are selected by the uplink bandstop filter and the uplink
Select switch connection；
One end of the power splitter is connected with the first upstream attenuation device and uplink selection switch respectively, institute
State the other end and the test switching switch connection of power splitter.
Preferably, the downlink test link module includes frequency spectrograph connection switch, downstream attenuation device, downlink bandreject filtering
Device and downlink selection switch；
Wherein, the downstream attenuation device is separately connected the frequency spectrograph with the both ends of the downlink bandstop filter and connects out
One end of one end of pass and downlink selection switch；The other end and the frequency spectrograph of the frequency spectrograph connection switch connect
It connects, the other end of the downlink selection switch and test switching switch connection.
Preferably, network interface is provided in the box wall of the shield test reactor box, the network interface is for obtaining the small base to be measured
The uplink test feedback data stood.
Preferably, power interface is provided in the box wall of the shield test reactor box, the power interface is for connecting outside
Power supply is the small base station power supply to be measured.
Second aspect, the utility model embodiment provide a kind of small base station testing system, including as first aspect provides
Small base station testing device and signal source and/or frequency spectrograph；Wherein, in the signal source and the small base station testing device
Uplink test link module connection, the downlink test link module in the frequency spectrograph and the small base station testing device connects
It connects.
Preferably, the small base station testing system further includes interchanger and intelligent terminal；
Network interface in the intelligent terminal, the signal source, the frequency spectrograph and the small base station testing device passes through
The interchanger interconnection.
Preferably, the signal source includes master source and interference signal source, and the master source and the uplink are tested
The first uplink test link module connection in link module, the interference signal source and the uplink are tested in link module
Second uplink tests link module connection.
A kind of small base station testing device and system provided by the embodiment of the utility model will by the way that shield test reactor box is arranged
Small base station to be measured has been placed in glitch-free test environment, thus test error caused by avoiding because of interference, it is ensured that test number
According to accuracy.In addition, uplink test link module is provided in shield test reactor box for the device and downlink tests link module,
Simplify small base station testing platform builds step, improves testing efficiency, has saved the testing time, while reducing tester
The operating procedure of member, avoids the error as caused by manual operation, reduces the requirement to tester, shorten tester
Member's cultivation cycle.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, 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 the structural schematic diagram of small base station testing device provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram that uplink provided by the embodiment of the utility model tests link module；
Fig. 3 is the structural schematic diagram that downlink provided by the embodiment of the utility model tests link module；
Fig. 4 is the structural schematic diagram of small base station testing system provided by the embodiment of the utility model；
Fig. 5 is the structural schematic diagram for the small base station testing system that another embodiment of the utility model provides；
Description of symbols:
100- shield test reactor box；110- uplink tests link module；
The first uplink of 111- tests link module；111a- isolator；
111b- the first upstream attenuation device；The second uplink of 112- tests link module；
112a- interference signal source switch；112b- the second upstream attenuation device；
112c- third upstream attenuation device；112d- uplink bandstop filter；
112e- uplink selection switch；113- power splitter；
120- downlink tests link module；121- frequency spectrograph connection switch；
122- downstream attenuation device；123- downlink bandstop filter；
124- downlink selection switch；The small base station to be measured 130-；
140- test switching switch；210- signal source；
211- master source；212- interference signal source；
220- frequency spectrograph；230- interchanger；
240- intelligent terminal.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Existing small base station testing requires tester to understand the test specification in professional standard and can skillfully grasp
The operation of test instrumentation and various test environment are built, and test threshold is high.In addition, the needs of building of test environment expend greatly
The time is measured, and during the test, useful signal is easy to be influenced by context, causes test data inaccurate.In this regard,
The utility model embodiment provides a kind of small base station testing device.Fig. 1 is that small base station provided by the embodiment of the utility model is surveyed
The structural schematic diagram that trial assembly is set, as shown in Figure 1, the device includes setting in shield test reactor box 100 and shield test reactor box 100
Uplink test link module 110 and downlink test link module 120；Uplink tests link module 110 and is used for connecting signal source
Uplink test is carried out to the small base station 130 to be measured inside shield test reactor box 100；Downlink tests link module 120 for connecting frequency
Spectrometer carries out downlink test to small base station 130 to be measured.
Specifically, shield test reactor box 100 is the test box by having the manufacture of the material of function of shielding, due to shield test reactor box
100 material has lower relative permeability and saturated magnetization rate, can form good shielding space.Shield test reactor box 100
It can be the test box manufactured by diamagnetic materials such as copper, aluminium, can also be and coat the test box of conductive paint on surface, this is practical
New embodiment is not especially limited this.Uplink is tested into link module 110 and downlink test link module 120 and to be measured
Small base station 130, which is placed in inside shield test reactor box 100, carries out small base station radio-frequency test, can effectively shield external environment interference,
It is equivalent to and small base station 130 to be measured has been placed in glitch-free test environment, thus test error caused by avoiding because of interference,
Ensure the accuracy of test data.
Inside shield test reactor box 100, it is provided with uplink test link module 110 and downlink test link module 120.?
When carrying out uplink test for small base station 130 to be measured, uplink test link module 110 can be connect with signal source, by signal source
The signal of generation is converted to uplink signal and issues small base station 130 to be measured, to realize that uplink is tested.It is being directed to small base station to be measured
When 130 progress downlink test, downlink test link module 120 can be connect with frequency spectrograph, the downlink that small base station 130 to be measured issues
Signal tests link module 120 by downlink and is transmitted to frequency spectrograph, is analyzed for frequency spectrograph, to realize that downlink is tested.On
Row test link module 110 and downlink test link module 120 may be constructed two complete and independent test links, tester
Member builds when carrying out radio frequency testing without carrying out link module, directly can test link module 110 and downlink by uplink
Test link module 120 is tested, and is largely reduced for tester to radio frequency testing relative theory and operation
Qualification requirement, while saving the environmental structure time.
Small base station to be measured has been placed on nothing by the way that shield test reactor box is arranged by device provided by the embodiment of the utility model
In the test environment of interference, thus test error caused by avoiding because of interference, it is ensured that the accuracy of test data.In addition, the dress
It sets and is provided with uplink test link module and downlink test link module in shield test reactor box, simplify small base station testing platform
Build step, improve testing efficiency, saved the testing time, while reducing the operating procedure of tester, avoid
The error as caused by manual operation reduces the requirement to tester, shortens tester's cultivation cycle.
Based on the above embodiment, it in the device, is additionally provided in shield test reactor box including test switching switch；Test switching
Switch is connect with uplink test link module, downlink test link module with small base station to be measured respectively；Test switching switch is used for
Control the connection between small base station to be measured and uplink test link module and downlink test link module.
Herein, test switching switch is single-pole double-throw switch (SPDT), tests link module for controlling small base station to be measured and uplink
Connection between downlink test link module.It is when needing to be implemented uplink test, then to be measured small by test switching switch connection
Base station and uplink test link module, when needing to be implemented downlink test, then by test switching switch be connected to small base station to be measured with
Downlink tests link module.Test switching switch can be to be manually controlled by tester, is also possible to by tester
Switch switch to test by control unit and send what switching drive signal controlled, the utility model embodiment is not made this specifically
It limits.
Device provided by the embodiment of the utility model realizes uplink test and downlink survey by setting test switching switch
The switching of examination builds test environment without rewiring, solves the testing time, reduces radio frequency testing and want to tester
It asks.
Based on any of the above-described embodiment, in the device, it includes that the first uplink tests link module that uplink, which tests link module,
It includes isolator and the first upstream attenuation device that first uplink, which tests link module,；One end of isolator is used to connect master source,
The other end of isolator is connect with one end of the first upstream attenuation device, the other end and test switching switch of the first upstream attenuation device
Connection.
Specifically, when executing uplink test, the signal that master source issues enters the first upstream attenuation by isolator
Device is sent to small base station to be measured by test switching switch after the decaying of the first upstream attenuation device.Wherein, master source is used
The main signal needed for generating uplink test.Isolator is a kind of signal isolating device, and master source is arranged in isolator
Interface effectively can prevent spiking from being reflected into master source, play the role of protecting master source.First uplink declines
Subtracting device is the attenuator that the first uplink is tested in link module.
In the implementation procedure of uplink test, if only the first uplink test link module is in operating status, it can be used for
Realize the test of uplink receiving sensitivity.
Based on any of the above-described embodiment, Fig. 2 is the structure that uplink provided by the embodiment of the utility model tests link module
Schematic diagram, as shown in Fig. 2, uplink test link module 110 further includes the second uplink test 112 He of link module in the device
Power splitter 113；It includes interference signal source switch 112a, the second upstream attenuation device 112b, that second uplink, which tests link module 112,
Three upstream attenuation device 112c, uplink bandstop filter 112d and uplink select switch 112e；Wherein, interference signal source switch
112a is used to control the connection between interference signal source 212 and the second upstream attenuation device 112b and third upstream attenuation device 112c,
Second upstream attenuation device 112b is connect with uplink selection switch 112e, and third upstream attenuation device 112c passes through the resistance filter of uplink band
Wave device 112d is connect with uplink selection switch 112e；One end of power splitter 113 respectively with the first upstream attenuation device 111b with
Uplink selects switch 112e connection, the other end of power splitter 113 and test switching switch connection.
Specifically, in the second uplink test link module 112, interference signal source 212 and interference signal source switch 112a connect
It connects.Wherein, interference signal source 212 is for generating interference signal, and interference signal source switch 112a is single-pole double-throw switch (SPDT), for controlling
Connection between interference signal source 212 processed and the second upstream attenuation device 112b and third upstream attenuation device 112c.Work as interference signal
When source switch 112a is connected to interference signal source 212 and the second upstream attenuation device 112b, then interference signal is opened by interference signal source
It closes 112a and enters the second upstream attenuation device 112b, after the second upstream attenuation device 112b decaying, from the second upstream attenuation device
The output end of 112b exports；When interference signal source switch 112a is connected to interference signal source 212 and third upstream attenuation device 112c,
Then interference signal enters third upstream attenuation device 112c by interference signal source switch 112a, by third upstream attenuation device 112c
After decaying, exported from third upstream attenuation device 112c, into uplink bandstop filter 112d, by uplink bandstop filter 112d into
It is exported after row bandreject filtering.
Second upstream attenuation device 112b and uplink bandstop filter 112d selects switch 112e with uplink modules respectively
Connection, uplink modules select switch 112e for single-pole double-throw switch (SPDT), for controlling power splitter 113 and the second upstream attenuation device
Connection between 112b and uplink bandstop filter 112d.When uplink modules selection switch 112e is connected to the second upstream attenuation
When device 112b and uplink modules selection switch 112e, the interference signal of the second upstream attenuation device 112b output passes through uplink
Road module selection switch 112e is input in power splitter 113；When uplink modules selection switch 112e connection uplink band resistance filter
When wave device 112d and uplink modules selection switch 112e, the interference signal of uplink bandstop filter 112d output passes through uplink
Link module selection switch 112e is input in power splitter 113.Similarly, interference signal source switch 112a and uplink modules
Selection switch 112e can be to be manually controlled by tester, be also possible to from tester pass through control unit respectively to
Interference signal source switch 112a and uplink modules selection switch 112e send switching drive signal control, the utility model
Embodiment is not especially limited this.
Power splitter 113 is also known as combiner, be it is a kind of will input signal be divided into two-way all the way or multiple-channel output is equal or not phase
Multiple signals can also be synthesized and be exported all the way by the device of equal energy.In the utility model embodiment, when the first uplink tests link
The interference signal that the main signal and the second uplink test link module 112 that module 111 exports export is input to power splitter 113
When, power splitter 113 is combined main signal and interference signal, then is input to test switching switch.
It should be noted that first uplink test link module 111 can be transported independently in uplink test link module 110
Row can also test the cooperation of link module 112 with the second uplink and run.In the first uplink test link module 111 and second
When the test cooperation of link module 112 of going is run, if the test output of link module 112 of the second uplink is declined by the second uplink
Subtract the interference signal of device 112b, then the signal after the combining of power splitter 113 can be used for realizing the survey of uplink radio frequency index
Examination, including selectivity (In-channel in adjacentchannel selectivity (Adjacent Channel Selectivity, ACS) and channel
Selectivity, ICS)；What if the second uplink test link module 112 exported be by third upstream attenuation device 112c and
The interference signal of uplink bandstop filter 112d, then the signal after the combining of power splitter 113 can be used for realizing uplink roadlock
The test of plug.
Based on any of the above-described embodiment, Fig. 3 is the structure that downlink provided by the embodiment of the utility model tests link module
Schematic diagram, as shown in figure 3, it includes frequency spectrograph connection switch 121, downstream attenuation device that downlink, which tests link module 120, in the device
122, downlink bandstop filter 123, downlink select switch 124；Wherein, downstream attenuation device 122 and downlink bandstop filter
123 both ends are separately connected one end of frequency spectrograph connection switch 121 and one end of downlink selection switch 124；Frequency spectrograph connects
The other end for connecing switch 121 is connect with frequency spectrograph 220, and downlink selects the other end of switch 124 and test switching switch to connect
It connects.
Specifically, frequency spectrograph connection switch 121 is single-pole double-throw switch (SPDT), for controlling frequency spectrograph 220 and downstream attenuation device
Connection between 122 and downlink bandstop filter 123.It is also single-pole double-throw switch (SPDT) that downlink, which selects switch 124, for controlling
Test switching switch and the connection between downstream attenuation device 122 and downlink bandstop filter 123.121 He of frequency spectrograph connection switch
Downlink selection switch 124 can be to be manually controlled by tester, is also possible to by tester through control singly
Member sends what switching drive signal controlled to frequency spectrograph connection switch 121 and downlink selection switch 124 respectively, this is practical new
Type embodiment is not especially limited this.
When needing to be implemented downlink index test, frequency spectrograph 220 and downstream attenuation are connected to by frequency spectrograph connection switch 121
Device 122 selects switch 124 to be connected to downstream attenuation device 122 and test switching switch, passes through test switching switch by downlink
Be connected to small base station to be measured and downlink test link module 120, then the downlink signal of small base station to be measured by test switching switch into
Enter downlink test link module 120, selects switch 124 to enter downlink by the downlink that downlink is tested in link module 120
Attenuator 122 is input to frequency spectrograph 220 by frequency spectrograph connection switch 121 after decaying.Herein, downlink index test includes most
Big output power, output power dynamic range, frequency error, EVM (Error Vector Magnitude, error vector width
Value), adjacent-channel power inhibit and spectral emission template more spuious than, general frequency range etc..
When needing to be implemented the spuious test of downlink particular frequency bands, passes through frequency spectrograph connection switch 121 and be connected to 220 He of frequency spectrograph
Downlink bandstop filter 123 selects switch 124 to be connected to downlink bandstop filter 123 and test switching switch by downlink,
Switch switch by test and be connected to small base station to be measured and downlink test link module 120, then the downlink signal of small base station to be measured is logical
It crosses test switching switch and enters downlink test link module 120, selected by the downlink that downlink is tested in link module 120
Switch 124 enters downlink bandstop filter 123, is input to frequency spectrograph 220 by frequency spectrograph connection switch 121 after filtering.
Based on any of the above-described embodiment, in the device, network interface is provided in the box wall of shield test reactor box, network interface is for obtaining
The uplink of small base station to be measured tests feedback data.
Specifically, in uplink test process, signal source by uplink test link module by uplink signal transmissions to
Small base station is surveyed, small base station to be measured generates uplink based on uplink signal and test feedback data after receiving uplink signal.Herein,
Uplink test feedback data is the feedback data that small base station to be measured is generated based on uplink signal, and network interface is connect with small base station to be measured,
The uplink test feedback data that small base station to be measured generates can be obtained.Network interface is arranged in the box wall of shield test reactor box, it can
Facilitate the intelligent terminals such as the equipment outside shield test reactor box, such as computer to obtain uplink by network interface and tests feedback data, and
Feedback data, which is tested, by analysis uplink obtains the result of uplink test.
Based on any of the above-described embodiment, in the device, power interface, power interface are provided in the box wall of shield test reactor box
It is small base station power supply to be measured for connecting external power supply.
Specifically, during radio frequency testing, small base station to be measured needs power supply to provide electric energy to maintain its normal operation.It is logical
It crosses and power interface is set in the box wall of shield test reactor box, while meeting small base station power demands to be measured, ensure that shielding
The excellent electromagnetic shielding performance of test box.
Based on any of the above-described embodiment, Fig. 4 is that the structure of small base station testing system provided by the embodiment of the utility model is shown
It is intended to, as shown in figure 4, the system includes small base station testing device and signal source 210 and/or frequency spectrograph 220；Wherein, signal
Source 210 is connect with the uplink test link module 110 in small base station testing device, in frequency spectrograph 220 and small base station testing device
Downlink test link module 120 connect.
Specifically, uplink test and/or downlink test can be executed in the system.When executing uplink test, the system
In need to include signal source 210, and be placed in signal source 210 and small base station testing device upper inside shield test reactor box 100
Row test link module 110 connects, and uplink tests link module 110 and the signal that signal source 210 generates is converted to uplink signal
Issue small base station 130 to be measured.When executing downlink test, need in the system to include frequency spectrograph 220, and frequency spectrograph 220 with it is small
It is placed in the downlink test link module 120 inside shield test reactor box 100 in base station testing device to connect, downlink tests link mould
The downlink signal that small base station 130 to be measured issues is transmitted to frequency spectrograph 220 by block 120, is analyzed for frequency spectrograph 220.
System provided by the embodiment of the utility model is provided with uplink test link module and downlink in shield test reactor box
Link module is tested, simplify small base station testing platform builds step, improves testing efficiency, has saved the testing time, together
When reduce the operating procedure of tester, avoid the error as caused by manual operation, reduce and tester is wanted
It asks, shortens tester's cultivation cycle.
Based on any of the above-described embodiment, which further includes interchanger and intelligent terminal；Intelligent terminal, signal source, frequency spectrum
Network interface in instrument and small base station testing device is interconnected by interchanger.
Specifically, exchanger is the hub of switch type, and intelligent terminal, signal source, frequency spectrograph and small base station are surveyed
Trial assembly set in network interface connect respectively with exchanger, the interconnection of intelligent terminal, signal source, frequency spectrograph and network interface may be implemented.
Herein, intelligent terminal can be computer, be also possible to DSP (Digital Signal Processing, Digital Signal Processing) etc.
Information processing equipment, the utility model embodiment are not especially limited this.
Wherein, the uplink test feedback data that the small base station to be measured that network interface obtains generates can be transferred to intelligence by interchanger
Energy terminal obtains the result of uplink test by intelligent terminal analysis uplink test feedback data.Intelligent terminal can also pass through friendship
Parallel operation sends preset parameter or template to frequency spectrograph and signal source.In addition, the downlink test that Spectrometry analysis obtains
As a result intelligent terminal can also be uploaded to by exchanger, this practical information embodiment is not especially limited this.
Based on any of the above-described embodiment, with reference to Fig. 2, in the system, signal source includes master source 211 and interference signal source
212, master source 211 is connect with the first uplink test link module 111 in uplink test link module 110, interference signal
Source 212 is connect with the second uplink test link module 112 in uplink test link module 110.
Specifically, main signal needed for master source 211 is used to generate uplink test, interference signal source 212 is for generating
Interference signal.Master source 211 tests link module 111 by the first uplink and main signal is transmitted to power splitter 113, interference letter
Number source 212 tests link module 112 by the second uplink and interference signal is transmitted to power splitter 113, and power splitter 113 can be to master
Signal and interference signal are combined, and carry out uplink test being transmitted to small base station to be measured by test switching switch.
Based on any of the above-described embodiment, Fig. 5 is the knot for the small base station testing system that another embodiment of the utility model provides
Structure schematic diagram, as shown in figure 5, the system includes shield test reactor box 100, master source 211, interference signal source 212, frequency spectrograph
220, interchanger 230 and intelligent terminal 240.Wherein, network interface 150, network interface 150, master are provided in the box wall of shield test reactor box 100
Signal source 211, interference signal source 212, frequency spectrograph 220, interchanger 230 and intelligent terminal 240 are realized mutually by interchanger 230
Connection.In addition, the box wall Shanghai of shield test reactor box 100 is provided with power interface 160, power interface 160 and small base station 130 to be measured connect
It connects, for powering for small base station 130 to be measured.
Be mounted in shield test reactor box 100 uplink test link module 110, downlink test link module 120 and to
Survey small base station 130.Link module 110 is tested by test switching switch 140 and uplink in small base station 130 to be measured, downlink tests chain
Road module 120 connects.
It includes the first uplink test link module 111, the second uplink test link module that uplink, which tests link module 110,
112 and power splitter 113.It includes isolator 111a and the first upstream attenuation device 111b, main letter that first uplink, which tests link module 111,
The main signal that number source 211 generates is input to power splitter 113 by isolator 111a and the first upstream attenuation device 111b.Second uplink
Link module includes interference signal source switch 112a, the second upstream attenuation device 112b, third upstream attenuation device 112c, the resistance of uplink band
Filter 112d and uplink select switch 112e, and the interference signal that interference signal source 212 generates is opened by interference signal source
It closes 112a and is input to the second upstream attenuation device 112b or third upstream attenuation device 112c and uplink bandstop filter 112d, uplink
Link selection switch 112e is for controlling between power splitter 113 and the second upstream attenuation device 112b and uplink bandstop filter 112d
Connection.
It includes frequency spectrograph connection switch 121, downstream attenuation device 122, downlink bandstop filter that downlink, which tests link module 120,
123 and downlink select switch 124；Wherein, the both ends of downstream attenuation device 122 and downlink bandstop filter 123 are separately connected
One end of one end of frequency spectrograph connection switch 121 and downlink selection switch 124；The other end of frequency spectrograph connection switch 121
It is connect with frequency spectrograph 220, the other end of downlink selection switch 124 is connect with test switching switch 140.
In above structure, the test of master source 211 and interference signal source 212 for uplink, master source 211 is used
In generation main signal, i.e., the signal of 130 band support of small base station to be measured.Interference signal source 212 is for generating interference signal, main letter
The frequency range that number source 211 and interference signal source 212 are supported: 0~3.2GHz, output power: -110~+30dBm contains TD-LTE
(Time Division Long Term) option.
Frequency spectrograph 220 is used for the test of downlink, and small base station 130 to be measured signals to test link module by downlink
120 reach frequency spectrograph 220.
Test switching switch 140, interference signal source switch 112a, uplink selection switch 112e, frequency spectrograph connection are opened
Pass 121 and downlink selection switch 124 are programmable switch, for the program-controlled switching of each link module, and switch tool
Standby radio frequency interface is used for the connection of link module, and switch need to meet following radio frequency parameter specification: 0~13GHz of frequency range, power
Capacity > 100W, passband fluctuation < 0.2dB, insertion loss < 0.2dB, interface standing wave < 1.In addition, in shield test reactor box 100 also
Be laid with internal switch, internal switch for realizing inside shield test reactor box 100 each switch and small base station 130 to be measured
Between connection.
Isolator 111a prevents spiking from being reflected into master source 211 for protecting master source 211.Isolator
The parameter specification of 111a is as follows: 2300~2400MHz of frequency range, power capacity > 1W, positive Insertion Loss < 0.2dB, reversed to press down
> 30dB processed, passband fluctuation < 0.2dB.
Uplink bandstop filter 112d is applied in the blocking test of uplink, and downlink bandstop filter 123 is applied
In the spuious test of the particular frequency bands of downlink.The parameter specification of uplink bandstop filter 112d and downlink bandstop filter 123
Are as follows: 2300~2400MHz of main signal, resistance value > 40dB are hindered, with outer Insertion Loss < 2dB.
First upstream attenuation device 111b, the second upstream attenuation device 112b and downstream attenuation device 122 are 30dB attenuator,
Parameter specification: power capacity is greater than 100W, 0~13GHz of frequency range of support, 30 ± 1dB of pad value.Third upstream attenuation device
112c be 20dB attenuator, parameter specification: power capacity be greater than 50W, 0~13GHz of frequency range of support, pad value 20 ±
1dB。
Power splitter 113 connects the first uplink test link module 111 and the second uplink tests link module 112, for closing
And main signal and interference signal.Parameter specification are as follows: 0~13GHz of frequency range of support, Insertion Loss < 6dB, passband fluctuation are respectively less than
1dB。
When executing the test of uplink receiving sensitivity, master source 211 is sequentially connected the first uplink by RF cable
The isolator 111a and the first upstream attenuation device 111b and power splitter 113 and test switching tested in link module 111 is switched
140, it is eventually connected to small base station 130 to be measured.
When executing uplink radio frequency index test, master source 211 is sequentially connected the first uplink by RF cable
The isolator 111a and the first upstream attenuation device 111b in link module 111 are tested, and is connected to power splitter 113.Interference signal
Source 212 is sequentially connected the interference signal source switch 112a that the second uplink tests in link module 112 by RF cable, on second
Row attenuator 112b and uplink select switch 112e, and are connected to power splitter 113.Power splitter 113 is to main signal and interference
Small base station 130 to be measured is sent the signal to by test switching switch 140 after signal combining.
When executing uplink blocking test, master source 211 is sequentially connected the first uplink by RF cable and tests
Isolator 111a and the first upstream attenuation device 111b in link module 111, and it is connected to power splitter 113.Interference signal source 212
It is sequentially connected that interference signal source switch 112a that the second uplink tests in link module 112, third uplink declines by RF cable
Subtract device 112c, uplink bandstop filter 112d and uplink selection switch 112e, and is connected to power splitter 113.Power splitter 113
Small base station 130 to be measured is sent the signal to by test switching switch 140 to after main signal and interference signal combining.
In the RF index test for executing downlink, frequency spectrograph 220 is sequentially connected frequency spectrograph by RF cable and connects
Switch 121, downstream attenuation device 122, downlink selection switch 124 and test switching switch 140 are connect, is ultimately connected to be measured small
Base station 130.
In the spuious test of the particular frequency bands of execution downlink, frequency spectrograph 220 is sequentially connected frequency spectrum by RF cable
Instrument connection switch 121, downlink bandstop filter 123, downlink selection switch 124 and test switching switch 140, it is final to connect
To small base station 130 to be measured.
In above structure, network interface 150, master source 211, interference signal source 212, frequency spectrograph 220, interchanger 230 and intelligence
Energy terminal 240 realizes interconnection by interchanger 230, the small interconnection of base station 130 to be measured in network interface 150 and shield test reactor box 100, and
Internal switch in shield test reactor box 100 realizes the connection of small base station 130 and each program controlled switch in box to be measured.Intelligence is eventually
The function button of process control administration interface on end 240 can be for realizing small base station testing, and interface is simple, facilitates operation,
Quickly each component can be tied by click function button, form the radio frequency link module of needs, realize test platform
Automatically build.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (10)
1. a kind of small base station testing device, which is characterized in that including what is be arranged in shield test reactor box and the shield test reactor box
Uplink tests link module and downlink tests link module；
The uplink test link module carries out the small base station to be measured inside the shield test reactor box for connecting signal source
Row test；The downlink test link module carries out downlink test to the small base station to be measured for connecting frequency spectrograph.
2. small base station testing device according to claim 1, which is characterized in that be additionally provided with packet in the shield test reactor box
Include test switching switch；
Test switching switch respectively with uplink test link module, downlink test link module with it is described to be measured
Small base station connection；
The test switching switch is surveyed for controlling the small base station to be measured and uplink test link module and the downlink
Try the connection between link module.
3. small base station testing device according to claim 2, which is characterized in that uplink test link module includes the
One uplink tests link module, and the first uplink test link module includes isolator and the first upstream attenuation device；
One end of the isolator is for connecting master source, the other end of the isolator and the first upstream attenuation device
One end connection, the other end of the first upstream attenuation device and test switching switch connection.
4. small base station testing device according to claim 3, which is characterized in that the uplink tests link module and further includes
Second uplink tests link module and power splitter；
Second uplink test link module include interference signal source switch, the second upstream attenuation device, third upstream attenuation device,
Uplink bandstop filter and uplink selection switch；
Wherein, the interference signal source switch is for controlling interference signal source and the second upstream attenuation device and the third
Connection between row attenuator, the second upstream attenuation device and uplink selection switch connection, the third uplink
Attenuator passes through the uplink bandstop filter and uplink selection switch connection；
One end of the power splitter is connected with the first upstream attenuation device and uplink selection switch respectively, the function
Divide the other end and the test switching switch connection of device.
5. small base station testing device according to claim 2, which is characterized in that the downlink test link module includes frequency
Spectrometer connection switch, downstream attenuation device, downlink bandstop filter and downlink selection switch；
Wherein, the both ends of the downstream attenuation device and the downlink bandstop filter are separately connected the frequency spectrograph connection switch
One end of one end and downlink selection switch；The other end of the frequency spectrograph connection switch is connect with the frequency spectrograph,
The other end of the downlink selection switch and test switching switch connection.
6. small base station testing device according to any one of claim 1 to 5, which is characterized in that the shield test reactor box
Box wall on be provided with network interface, the network interface is used to obtain the uplink test feedback data of the small base station to be measured.
7. small base station testing device according to any one of claim 1 to 5, which is characterized in that the shield test reactor box
Box wall on be provided with power interface, the power interface is the small base station power supply to be measured for connecting external power supply.
8. a kind of small base station testing system, which is characterized in that including base station testing small as described in any one of claims 1 to 7
Device and signal source and/or frequency spectrograph；Wherein, the uplink in the signal source and the small base station testing device tests chain
The connection of road module, the frequency spectrograph are connect with the downlink test link module in the small base station testing device.
9. small base station testing system according to claim 8, which is characterized in that further include interchanger and intelligent terminal；
Network interface in the intelligent terminal, the signal source, the frequency spectrograph and the small base station testing device passes through described
Interchanger interconnection.
10. small base station testing system according to claim 8, which is characterized in that the signal source include master source and
Interference signal source, the master source are connect with the first uplink test link module in uplink test link module, institute
Interference signal source is stated to connect with the second uplink test link module in uplink test link module.
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| CN201920728796.0U CN209526892U (en) | 2019-05-20 | 2019-05-20 | A kind of small base station testing device and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111970727A (en) * | 2020-07-15 | 2020-11-20 | 国家无线电监测中心检测中心 | NB-IoT base station blocking test system |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111970727A (en) * | 2020-07-15 | 2020-11-20 | 国家无线电监测中心检测中心 | NB-IoT base station blocking test system |
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