CN208820793U - Base station testing system - Google Patents
Base station testing system Download PDFInfo
- Publication number
- CN208820793U CN208820793U CN201821707695.7U CN201821707695U CN208820793U CN 208820793 U CN208820793 U CN 208820793U CN 201821707695 U CN201821707695 U CN 201821707695U CN 208820793 U CN208820793 U CN 208820793U
- Authority
- CN
- China
- Prior art keywords
- port
- base station
- multiport
- expanding element
- isolator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Monitoring And Testing Of Transmission In General (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
This application involves a kind of base station testing systems, including the first multiport expanding element, the second multiport expanding element, isolator, frequency spectrograph and signal generator；The branch port of first multiport expanding element is separately connected the input port of frequency spectrograph and the output port of isolator, and the combining port of the first multiport expanding element connects the combining port of the second multiport expanding element；Each branch port of second multiport expanding element is for connecting corresponding base station to be tested；The output port of the input port connection signal generator of isolator.Combination based on the first multiport expanding element and the second multiport expanding element, more base stations to be measured can be linked together and be powered on simultaneously by base station testing system, it is fully warmed-up to equipment, reaches stable state, solve the problems, such as that frequently replacing base station to be tested influences the stable of test environment；Meanwhile isolator can prevent reflection signal entering signal generator, improve the accuracy of base station radio-frequency performance test.
Description
Technical field
This application involves mobile communication technology fields, more particularly to a kind of base station testing system.
Background technique
Small base station is the product for public mobile communication field, is a kind of form of radio station, can emit and
The radio wave of specific frequency is received, so that the mobile terminal in its coverage area realizes that information is transmitted and exchanged.To small base
For station equipment manufacturer, to make the small base station of factory all meet the requirements, need that its various index is considered and tested, penetrate
Frequency index is then one of them.
During realization, inventor has found that at least there are the following problems in traditional technology: due to the spy of small base station products
Different property, the base station to be tested more renewed every time are tested, and require to carry out preheating and preset value, reach steady testing condition
Can be with proper testing, frequently replacing base station to be tested influences the stabilization of test environment.
Utility model content
Based on this, it is necessary to influence the stable problem of test environment for base station to be tested is frequently replaced, provide one kind
Base station testing system.
To achieve the goals above, on the one hand, the embodiment of the present application provides a kind of base station testing system, including more than first
Ports-Extending unit, the second multiport expanding element, isolator, frequency spectrograph and signal generator.
The branch port of first multiport expanding element is separately connected the output of the input port and isolator of frequency spectrograph
Port, the combining port of the first multiport expanding element connect the combining port of the second multiport expanding element；Second multiport
Each branch port of expanding element is for connecting corresponding base station to be tested；The input port connection signal generator of isolator
Output port.
The branch port of the first multiport expanding element includes the first branch port, second in one of the embodiments,
Branch port, third branch port and the 4th branch port；Isolator include the first isolator, the second isolator and third every
From device；Signal generator includes the first signal generator for generating useful signal, for generating the second letter of interference signal
Number generator, and the third signal generator for generating inter-modulated signal.
First branch port connects the output port of the first isolator；The input port of first isolator connects the first signal
The output port of generator.Second branch port connects the output port of the second isolator；The input port of second isolator connects
Connect the output port of second signal generator.The output port of third branch port connection third isolator；Third isolator
The output port of input port connection third signal generator.
It in one of the embodiments, further include third multiport expanding element.The quantity of second multiport expanding element
It is at least two.The combining port of the combining port connection third multiport expanding element of first multiport expanding element；Third
The branch port of multiport expanding element connects the combining port of corresponding second multiport expanding element.
It in one of the embodiments, further include at least two first attenuators.The branch of second multiport expanding element
Port connects corresponding base station to be tested by the first attenuator.
It in one of the embodiments, further include the second attenuator.The combining port of first multiport expanding element passes through
Second attenuator connects frequency spectrograph.
It in one of the embodiments, further include server.Server is separately connected the communication port of signal generator, frequency
The communication port of spectrometer and the communication port of each base station to be tested.
It in one of the embodiments, further include USB (Universal Serial Bus, universal serial bus) extension
Device.Server is separately connected the communication port of signal generator, the communication port of frequency spectrograph and to be tested by usb expansion device
Each radio frequency unit of base station.Server also connects the baseband signal of base station to be tested by the port RS-232 with the port RJ45 respectively
Processing unit.
In one of the embodiments, further include the first RF cable for being used for transmission reference signal, is used for transmission
Second RF cable of trigger synchronization signal.
Frequency spectrograph passes through the first RF cable and the second RF cable connection baseband signal processing unit respectively；Signal occurs
Device passes through the first RF cable and the second RF cable connection baseband signal processing unit respectively.
The first multiport expanding element is two power splitters, three power splitters, four power splitters, six in one of the embodiments,
Power splitter or eight power splitters.Second multiport expanding element is two power splitters, three power splitters, four power splitters, six power splitters, eight function
Divide device, 12 power splitters or 16 power splitters.
Base station to be tested is LTE (Long Term Evolution, long term evolution) standard in one of the embodiments,
(Time Division-Synchronous Code Division Multiple Access, time-division are same by base station, TD-SCDMA
Walking CDMA) standard base station, (Wideband Code Division Multiple Access, wideband code division are more by WCDMA
Location) standard base station, (Code Division Multiple Access, CDMA) the standard base station CDMA or CDMA2000
The standard base station (Code Division Multiple Access 2000).
A technical solution in above-mentioned technical proposal is had the following advantages and beneficial effects:
Base station testing system include the first multiport expanding element, the second multiport expanding element, isolator, frequency spectrograph with
And signal generator；The branch port of first multiport expanding element is separately connected the input port and isolator of frequency spectrograph
Output port, the combining port of the first multiport expanding element connect the combining port of the second multiport expanding element；More than second
Each branch port of ports-Extending unit is for connecting corresponding base station to be tested；The input port connection signal of isolator occurs
The output port of device.Combination based on the first multiport expanding element and the second multiport expanding element, base station testing system can
More base stations to be measured are linked together and are powered on simultaneously, are fully warmed-up to equipment, reach stable state, solve frequently replacement to
Testing base station influences the stable problem of test environment；Meanwhile signal generator is connect by isolator with power splitter, is prevented anti-
Signal entering signal generator is penetrated, the accuracy of base station radio-frequency performance test is improved.
Detailed description of the invention
By being more particularly described for preferred embodiment of the present application shown in the drawings, the above and other mesh of the application
, feature and advantage will become more fully apparent.Identical appended drawing reference indicates identical part in all the attached drawings, and does not carve
Meaning draws attached drawing by actual size equal proportion scaling, it is preferred that emphasis is shows the purport of the application.
Fig. 1 is the first schematic diagram of base station testing system in one embodiment；
Fig. 2 is the second schematic diagram of base station testing system in one embodiment；
Fig. 3 is the third schematic diagram of base station testing system in one embodiment；
Fig. 4 is the 4th schematic diagram of base station testing system in one embodiment；
Fig. 5 is the 5th schematic diagram of base station testing system in one embodiment；
Fig. 6 is the testing process schematic diagram of base station testing system in one embodiment.
Specific embodiment
The application in order to facilitate understanding is described more fully the application below with reference to relevant drawings.In attached drawing
Give the preferred embodiment of the application.But the application can realize in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is make it is more thorough and comprehensive to disclosure of this application.
It should be noted that it can be directly to separately when an element is considered as " connection " another element
One element and it is in combination be integrated, or may be simultaneously present centering elements.Term as used herein " output port ",
" input port ", " communication port " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Carrier of the radio wave as information, it is ensured that information it is correct transmission and reception, meet certain transmission range,
It resists extraneous interference and does not upset other signals simultaneously, meet small base station transceiver performance indicator as defined in 3GPP agreement, to small
The radio frequency processing performance of base station proposes strict requirements, and reaching requirement is also the primary condition that small base station is built a station.For raw factory
For quotient, product quality is not only where its life, and production efficiency is also to determine its competitiveness size and standing ground on the market
Position.
Traditional small base station radio-frequency is tested through artificial method, is tested by platform, although cooperation automatic test,
It is that there is still a need for carry out equipment replacement operation at interval of a period of time.Thus, in the case where unattended, instrument will be not busy
It sets, causes the waste of resource.Simultaneously as the particularity of small base station products, replace every time new product carry out test require into
Row preheating and preset value, reaching steady testing condition just can be with proper testing, thus time availability is not high；For example, in height
In warm environment, frequently replacing base station will cause the variation of environmental condition, influence the problem of testing environment, result in the need for waiting one section
Time settles out, and expends certain waiting time.
The purpose of the embodiment of the present application be for traditional small base station radio-frequency index test instrument utilization rate is low and people
The frequent problem of work intervention optimizes, and provides a kind of base station testing system for the test of small base station radio-frequency, which is used for
Test the RF index of small base station, including but not limited to 3GPP (3rd Generation Partnership Project, third
For partner program) require each frequency range RF index.Specifically, base station testing system will be surveyed by introducing multiple power splitters
Test instrument is connected with more base stations to be tested, and small base station to be measured is successively selected to be tested using automatic test platform,
And the small base station signal that test is completed disconnects, to improve instrument utilization rate and reduce influence of the more exchange device to test environment,
Meanwhile between reduction artificial value is punctual, is tested in batches, shorten test period, production cost can be reduced.
In order to make a certain number of small base station equipments access base station test macro simultaneously, seamless switching RF index is carried out
Follow-on test reduces instrument waiting time and equipment preheating time, realizes unattended desired effect, the embodiment of the present application mentions
For a kind of time-sharing multiplex equipment of test equipment, server and test equipment can be shared to each small base station to be tested.
Meanwhile considering the particularity of radiofrequency signal, interference cannot be introduced, test result is influenced, the embodiment of the present application utilizes power splitter
The characteristic of branch and combining provides a kind of multiport expanding element combination, can be by the radio frequency of test equipment and more small base stations
Unit connects, and establishes the basis of time-sharing multiplex instrument.
In one embodiment, a kind of base station testing system is provided, as shown in FIG. 1, FIG. 1 is base stations in one embodiment to survey
First schematic diagram of test system, including the first multiport expanding element, the second multiport expanding element, isolator, frequency
Spectrometer and signal generator.
The branch port of first multiport expanding element is separately connected the output of the input port and isolator of frequency spectrograph
Port, the combining port of the first multiport expanding element connect the combining port of the second multiport expanding element；Second multiport
Each branch port of expanding element is for connecting corresponding base station to be tested；The input port connection signal generator of isolator
Output port.
Specifically, the first multiport expanding element includes a combining port and at least two branch ports；More than second
Ports-Extending unit includes a combining port and at least two branch ports.The input port of frequency spectrograph connects the first multiport
The output port of one branch port of expanding element, signal generator connects the first multiport expanding element by isolator
Another branch port.The combining port of first multiport expanding element connects the combining port of the second multiport expanding element.The
The branch port of two multiport expanding elements connects the prevention at radio-frequency port of base station to be tested, optionally, a branch port connection one
A prevention at radio-frequency port.
It should be noted that the branch port of the first multiport expanding element is used for connecting test instrument, wherein tester
Device includes frequency spectrograph and signal generator.The branch port of second multiport expanding element is used to connect the radio frequency of base station to be tested
Port.
Multiport expanding element can be used for for input signal being all the way divided into two-way or multichannel it is equal or unequal signal it is defeated
Out, and/or, multichannel input signal is synthesized to the device exported all the way.Specifically, such as combiner or power splitter.Wherein, branch
Port can be used for by from combining port input signal be divided into two-way or multichannel it is equal or unequal signal output；It is combined port
It can be used for all the way exporting the signal synthesis that each branch port inputs.
In a specific example, power splitter can not only have the characteristic of branch but also may act as combiner, the first multiport
Expanding element is the first power splitter, and the second multiport expanding element is the second power splitter；Include the first power splitter and the second function point
The multi-path power divider unit of device can realize that radiofrequency signal is transferred to frequency spectrograph from small base station, and can realize that radiofrequency signal is sent out from signal
Raw device is transferred at the receiver of small base station, and uplink and downlink RF index meets simultaneously to carry out in the power splitter unit.
Frequency spectrograph be used for base station transmitter performance test, it can be achieved that power measurement, occupied bandwidth measurement, spectrum measurement, always
Power Dynamic Range measurement, frequency error measurement, vector amplitude error measurement and latency measurement etc., herein with no restrictions.
Signal generator is used for base station receiver performance test, by generating specific useful signal, interference signal or mutually
Signal is adjusted, it can be achieved that sensitivity measure, blocking performance measurement and intermodulation measure etc., herein with no restrictions.
Isolator is connected to the output port of signal generator, for preventing reflection signal entering signal generator.It is to be measured
Trying base station can be single-antenna base station, double antenna base station or multi-antenna base station.
Relatively traditional radio frequency testing mode, the embodiment of the present application by more small base stations to be measured link together and simultaneously on
Electricity can be fully warmed-up to equipment, reach stable state, reduce the time of waiting, and can avoid in replacement base station process to test
The frequent influence of environment, meanwhile, it is capable to realize unattended for a long time.Compared with the small base station radio-frequency test macro of other batches
Compared with the embodiment of the present application is built flexibly and easily, does not need in addition to design processing and manufacturing, using only common power splitter and isolator
Etc. carrying out matching combination, the use of complicated passive device is not only reduced, additionally it is possible to prevent signal interference, improve small base station radio-frequency
The accuracy of performance test.
In one embodiment, as shown in Fig. 2, Fig. 2 is the second schematic knot of base station testing system in one embodiment
Composition, the branch port of the first multiport expanding element include the first branch port, the second branch port, third branch port and
4th branch port.Isolator includes the first isolator, the second isolator and third isolator.Signal generator includes being used for
The first signal generator for generating useful signal, it is mutual for generating the second signal generator of interference signal, and for generating
Adjust the third signal generator of signal.
First branch port connects the output port of the first isolator；The input port of first isolator connects the first signal
The output port of generator.Second branch port connects the output port of the second isolator；The input port of second isolator connects
Connect the output port of second signal generator.The output port of third branch port connection third isolator；Third isolator
The output port of input port connection third signal generator.
Specifically, the first multiport expanding element includes at least four branch port.Test equipment may include frequency spectrograph,
The first signal generator for generating useful signal generates the second signal generator of interference signal, and generates inter-modulated signal
Third signal generator；Each signal generator is configured with corresponding isolator.The quantity of isolator is at least three.
First multiport expanding element connects corresponding signal generator by each isolator.
It should be noted that according to actual needs, the first signal generator can be used for generating specific useful signal；Its
In, useful signal can be the letter for generating a preset movement after allowing receiving device (such as base station) to receive signal
Number.
According to actual needs, second signal generator can be used for generating specific interference signal；Wherein, interference signal can refer to
The signal of damage is caused to the reception of useful signal.
According to actual needs, third signal generator can be used for generating specific inter-modulated signal；Wherein, inter-modulated signal is also
One kind of interference signal, it and other signals effect are generated with frequency similar in useful signal frequency, thus to communication system structure
At interference.
In one embodiment, as shown in figure 3, the third that Fig. 3 is base station testing system in one embodiment is schematically tied
Composition further includes third multiport expanding element.
The quantity of second multiport expanding element is at least two.The combining port connection the of first multiport expanding element
The combining port of three multiport expanding elements；The branch port of third multiport expanding element connects corresponding second multiport and expands
Open up the combining port of unit.
Specifically, base station testing system includes third multiport expanding element and the extension of the second multiport of at least two
Unit.First multiport expanding element is separately connected each second multiport expanding element by third multiport expanding element.Tool
Body, the combining port of third multiport expanding element connects the combining port of the first multiport expanding element, and branch port connects
Connect the combining port of corresponding second multiport expanding element.
It should be noted that third multiport expanding element is for extending power splitter port.Specifically, third multiport expands
Each branch port of exhibition unit can connect the combining port of corresponding second multiport expanding element, increase base station testing system
The quantity of second multiport expanding element, extension connect the quantity of the port of base station to be tested.It is optional according to actual test needs
Select the number of the specification of third multiport expanding element, the specification of the second multiport expanding element and the second multiport expanding element
Amount, realizes the connection and test of the base station to be tested of respective numbers.
Specifically, as shown in figure 3, multi-path power divider unit may include multiple N amplifirers, and pass through RF cable for each N
Amplifirer connects.Wherein, N power splitter can be two power splitters, three power splitters or four power splitters, specifically can be according to actual needs
Selection, the foundation of selection are mainly to be determined by the quantity of test equipment and the quantity of base station to be tested, herein with no restrictions.First
Multiport expanding element is the first power splitter, and the second multiport expanding element is the second power splitter, third multiport expanding element
For third power splitter.The port 1 of first power splitter connects the port 1 of third power splitter；Port N is arrived in the port 2 of first power splitter
For connecting test instrument, i.e. signal generator, frequency spectrograph etc..Third amplifirer is mainly used for extending power splitter port, by it
Port 2 to port N the second power splitter of connection realizes the effect more than one turn.And the second power splitter is for connecting small base station to be measured
Prevention at radio-frequency port, the branch port of a power splitter can connect a prevention at radio-frequency port.
In one embodiment, as shown in figure 4, Fig. 4 is the 4th schematic knot of base station testing system in one embodiment
Composition further includes at least two first attenuators.
The branch port of second multiport expanding element connects corresponding base station to be tested by the first attenuator.
Specifically, base station testing system includes multiple first attenuators；First attenuator is connected to the expansion of the second multiport
Between the branch port and corresponding base station to be tested for opening up unit.Each branch port of second multiport expanding element, which connects, to be corresponded to
The first attenuator, and corresponding base station to be tested is connected by first attenuator.
It should be noted that the first attenuator can be connect by RF cable with the prevention at radio-frequency port of small base station to be tested, it can
For reducing small Base Transmitter signal power, and prevents big signal from entering multi-path power divider unit and generate interference.Meanwhile first declines
Subtracting device itself prevention at radio-frequency port can protect small base station, moreover it is possible to the effect for serving as load, avoid the signal of signal generator because
It is unloaded and reflect.
In one embodiment, as shown in figure 4, further including the second attenuator.
The combining port of first multiport expanding element connects frequency spectrograph by the second attenuator.
Specifically, base station testing system further includes the second attenuator.Second attenuator is connected to more than frequency spectrograph and first
Between the combining port of ports-Extending unit.
It should be noted that above-mentioned first attenuator and the second attenuator are capable of the too fast variation of buffering signals, have good
Good fluctuation and impedance matching, can be improved the accuracy of small base station radio-frequency performance test.
In one embodiment, as shown in figure 5, Fig. 5 is the 5th schematic knot of base station testing system in one embodiment
Composition further includes server.Server be separately connected the communication port of signal generator, the communication port of frequency spectrograph and respectively to
The communication port of testing base station.
Specifically, base station testing system may also include server.Server be separately connected signal generator, frequency spectrograph and
The communication connection with each test equipment and each base station to be tested is realized in each base station to be tested.
It should be noted that server can be the server for being equipped with automatic test platform, it can be used for running automation
Test platform executes various test scripts, controls and operates frequency spectrograph and signal generator, and selection base station to be tested.Together
When, server can also be achieved automatic Proofreading line loss, save test data, the functions such as display test log and prompt test mode.
Specifically, the detection method of automatic test platform is used cooperatively based on base station testing system, mainly
It is by configuring signal generator and frequency spectrograph, realizing the line loss check and correction of each radio frequency link and calling, whether detection base station
Access, treats that testing base station carries out the test of selected test item and the state of non-base station to be measured controls, meanwhile, can real-time display wait for
The serial number and test configurations process and test result of survey base station, convenient for understanding test process in real time.
The embodiment of the present application is based on server, by the detection method of automatic test platform, can complete test small
Base station is substituted for base station to be tested, so that system is tested incessantly.Server is in conjunction with automatic test platform, base station
Test macro can check test mode at any time, detect abnormal problem, improve the stability of test, promote the efficiency of production testing,
Save production cost.
In one embodiment, as shown in figure 5, further including usb expansion device.Server is separately connected by usb expansion device
The communication port of signal generator, the communication port of frequency spectrograph and each radio frequency unit of base station to be tested.
Server also connects the baseband signal processing unit of base station to be tested by the port RS-232 with the port RJ45 respectively.
Specifically, base station to be tested may include baseband signal processing unit and multiple radio frequency units.Base station testing system
It further include usb expansion device.Server is each with signal generator, frequency spectrograph and base station to be tested respectively by usb expansion device
Radio frequency unit communication connection, and connect the base band signal process list of base station to be tested with the port RJ45 by the port RS-232 respectively
Member.
It should be noted that usb expansion device can be used for a USB port of server being extended to multiple USB ports, lead to
It crosses and accesses the USB interface of frequency spectrograph and signal generator, realize the communication of server and frequency spectrograph, signal generator, simultaneously
Turn RS-232 data line by USB, it can be achieved that server and small base station to be measured communication.
Each test equipment is communicated by usb bus with server, realizes accurate control of the server to test equipment,
Carry out the measurement of different indexs.
Base station to be tested can be distributed small base station, including baseband signal processing unit BBU, expanding element EU and radio frequency list
First RU.Wherein, BBU is responsible for the processing of small base station signal；EU is responsible for the forwarding of data between BBU and RU and passes through POE
(Power Over Ethernet, active Ethernet) is RU power supply；And RU is then that baseband signal is switched to emission of radio frequency signals to go out
It goes, meanwhile, receive the signal for special frequency channel of eating dishes without rice or wine.The RU of the equipment has double antenna MIMO ((Multiple-Input
Multiple-Output, multi-input multi-output system) function.
Server can be connect by RJ45 cable and RS232 serial ports with BBU, it can be achieved that configure small base station test mode and
Associated statistical information is read, is outputed test result for automatic test platform.RU can be turned by RS-232 serial ports USB data line with
The connection of usb expansion device, usb expansion device are connected with server again, realize that server reads and writes the register of RU, to carry out corresponding
The configuration of radio frequency testing state.
In one embodiment, as shown in figure 5, further including the first RF cable for being used for transmission reference signal, for passing
Second RF cable of defeated trigger synchronization signal.
Frequency spectrograph passes through the first RF cable and the second RF cable connection baseband signal processing unit respectively.
Signal generator connects baseband signal processing unit by the first RF cable and the second RF cable.
Specifically, the first RF cable is used for transmission reference signal, such as 10M reference signal.Second RF cable is used
In transmission trigger synchronization signal.
It should be noted that the 10M reference signal of BBU can be transferred to test equipment by the first RF cable；BBU's
Trigger synchronization signal can be transferred to test equipment by the second RF cable, meet the needs of test and guarantee test result
Reliability.
In one embodiment, the first multiport expanding element is two power splitters, three power splitters, four power splitters, six function point
Device or eight power splitters.Second multiport expanding element is two power splitters, three power splitters, four power splitters, six power splitters, eight function point
Device, 12 power splitters or 16 power splitters.
Specifically, the first multiport expanding element, the second multiport expanding element and third multiport expanding element
Specification can be selected and be configured according to actual test, it can be achieved that the small base station of base station testing system and corresponding number
Connection and test.
In one embodiment, base station to be tested is LTE standard base station, TD-SCDMA standard base station, WCDMA standard base
It stands, CDMA standard base station or CDMA2000 standard base station.
Specifically, the standard of small base station to be measured can be LTE standard, TD-SCDMA standard, WCDMA standard, CDMA standard
Or CDMA2000 standard etc., herein with no restrictions.
In one embodiment, base station testing system includes frequency spectrograph, the signal generator of useful signal, interference signal
Signal generator, the server equipped with automatic test platform, multi-path power divider unit, declines at the signal generator of inter-modulated signal
Subtract device, isolator, base station to be tested, usb expansion device and a plurality of RF cable.Wherein, the signal hair of frequency spectrograph, useful signal
Raw device, the signal generator of interference signal and the signal generator of inter-modulated signal belong to test equipment.
Multi-path power divider unit can be divided into three series according to function.
First multiport expanding element realizes the function of connecting test instrument, and branch port is connected by RF cable
Frequency spectrograph and each signal generator are stated, four branch ports are included at least；First branch port is connected by RF cable
Connect the isolator output port of the signal generator of useful signal；Second branch port connects interference signal by RF cable
Signal generator isolator output port；The isolator that third branch port connects the signal generator of inter-modulated signal is defeated
Exit port；4th branch port connects frequency spectrograph input port by RF cable；It is combined port and connects third multiport
The combining port of expanding element.
Third multiport expanding element realizes the function of extension branch port, and combining port uses straight-through head connection first
The combining port of the power splitter of grade, each branch port by RF cable continue connection multi-path power divider or with more than second
The combining port of ports-Extending unit connects.
Second multiport expanding element realizes the function of connecting small base station radio-frequency interface to be tested, and combining port passes through
RF cable is connect with the branch port of third multiport expanding element, and branch port is connected by RF cable and attenuator
It connects.
Test equipment is connect with the radio-frequency terminals of more RU respectively by multi-path power divider unit.It should be noted that the
It is additionally added attenuator between two multiport expanding elements and RU, small Base Transmitter signal can be prevented to be directly entered power splitter, is generated
Unnecessary intermodulation interference signal prevents the rf chain for damaging other base stations to be tested meanwhile, it is capable to reduce transmitting signal power
Road device.
In one embodiment, after base station testing system as shown in Figure 5 carries out wiring, equipment is powered on, and
And wait preheated for 30 minutes, stable test environment is formed, so that test equipment and base station to be tested enter stable state.
Test program on the automatic test platform of execute server, the RF index that can treat testing base station are tested, such as
Shown in Fig. 6, Fig. 6 is the testing process schematic diagram of base station testing system in one embodiment, specifically be can comprise the following steps that
1, USB port scanner program is enabled on automatic test platform, detects that there is equipment connection in which port, so as to platform
It calls corresponding port communication and configures the line loss value of respective radio-frequency route.
If 2, not connecting small base station to be tested, the display of platform bullet frame terminates test；If any small base station to be tested,
Then initialization test instrument carries out subsequent test.
3, small base station to be tested is configured accordingly, including frequency point, bandwidth, yield value etc.；It is surveyed into radio frequency
Die trial formula to meet test request, which includes the state parameter write-in at the end BBU and the end RU.
4, after the completion of small base station corresponding state configuration, corresponding RU RF switch is opened, so that radio frequency unit transceiver
Signal is normally received and emitted, and calls the line loss value of the measurement circuit, so that test result is more accurate.
5, configuration process is tested, if configuration failure, then the reason of frame shows configuration failure is played, if being not detected
Mistake then continues test backward.
6, corresponding setting is carried out to test equipment after the completion of small base station state configuration, starts uplink and downlink RF index and surveys
Amount；Platform real-time display test result simultaneously will test unacceptable project using red mark, and positive constant uses logos, with
Just test result is intuitively presented.
7, after the completion of all test items of small base station to be tested, automatic test platform saves test result,
It is separately stored to specified folder and adds the test deadline to carry out the name of file with serial number, file format can be xlsx.
8, after the test result for saving the small base station that current test is completed, the power amplifier switch of its radio frequency unit is closed, so
The equipment is shut down afterwards, in order to avoid interference, and the damage for preventing abnormal signal from may cause are generated to other small base stations to be tested.
9, platform is according to pre-selected test serial number, judges whether that there are also small base stations to be tested, if so, continue from
Step 4 starts to be tested；If it is not, then closing small base station signal, test equipment resets, and terminates test.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to the application range therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art,
Without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection model of the application
It encloses.Therefore, the scope of protection shall be subject to the appended claims by the application.
Claims (10)
1. a kind of base station testing system, which is characterized in that including the first multiport expanding element, the second multiport expanding element,
Isolator, frequency spectrograph and signal generator；
The branch port of the first multiport expanding element be separately connected the frequency spectrograph input port and the isolation
The output port of device, the combining port of the first multiport expanding element connect the combining of the second multiport expanding element
Port；Each branch port of the second multiport expanding element is for connecting corresponding base station to be tested；The isolator
Input port connects the output port of the signal generator.
2. base station testing system according to claim 1, which is characterized in that the branch of the first multiport expanding element
Port includes the first branch port, the second branch port, third branch port and the 4th branch port；The isolator includes the
One isolator, the second isolator and third isolator；The signal generator includes the first letter for generating useful signal
Number generator, for generating the second signal generator of interference signal, and the third signal for generating inter-modulated signal occurs
Device；
First branch port connects the output port of first isolator；The input port of first isolator connects
The output port of first signal generator；
Second branch port connects the output port of second isolator；The input port of second isolator connects
The output port of the second signal generator；
The third branch port connects the output port of the third isolator；The input port of the third isolator connects
The output port of the third signal generator.
3. base station testing system according to claim 1, which is characterized in that further include third multiport expanding element；
The quantity of the second multiport expanding element is at least two；
The combining port of the first multiport expanding element connects the combining port of the third multiport expanding element；It is described
The branch port of third multiport expanding element connects the combining port of the corresponding second multiport expanding element.
4. base station testing system according to claim 1, which is characterized in that further include at least two first attenuators；
The branch port of the second multiport expanding element connects the corresponding base to be tested by first attenuator
It stands.
5. base station testing system according to claim 4, which is characterized in that further include the second attenuator；
The combining port of the first multiport expanding element connects the frequency spectrograph by second attenuator.
6. base station testing system according to claim 1, which is characterized in that further include server；
The server is separately connected the communication port of the signal generator, the communication port of the frequency spectrograph and each described
The communication port of base station to be tested.
7. base station testing system according to claim 6, which is characterized in that further include usb expansion device；
The server is separately connected the communication port of the signal generator, the frequency spectrograph by the usb expansion device
Each radio frequency unit of communication port and the base station to be tested；
The server also connects the base band signal process of the base station to be tested by the port RS-232 with the port RJ45 respectively
Unit.
8. base station testing system according to claim 7, which is characterized in that further include be used for transmission reference signal first
RF cable is used for transmission the second RF cable of trigger synchronization signal；
The frequency spectrograph connects the base band signal process with second RF cable by first RF cable respectively
Unit；The signal generator connects the baseband signal with second RF cable by first RF cable respectively
Processing unit.
9. according to claim 1 to base station testing system described in 8 any one, which is characterized in that first multiport expands
Exhibition unit is two power splitters, three power splitters, four power splitters, six power splitters or eight power splitters；
The second multiport expanding element is two power splitters, three power splitters, four power splitters, six power splitters, eight power splitters, 12
Power splitter or 16 power splitters.
10. according to claim 1 to base station testing system described in 8 any one, which is characterized in that the base station to be tested is
LTE standard base station, TD-SCDMA standard base station, WCDMA standard base station, CDMA standard base station or CDMA2000 standard base station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821707695.7U CN208820793U (en) | 2018-10-19 | 2018-10-19 | Base station testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821707695.7U CN208820793U (en) | 2018-10-19 | 2018-10-19 | Base station testing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208820793U true CN208820793U (en) | 2019-05-03 |
Family
ID=66280002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821707695.7U Expired - Fee Related CN208820793U (en) | 2018-10-19 | 2018-10-19 | Base station testing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208820793U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110505025A (en) * | 2019-08-19 | 2019-11-26 | 惠州Tcl移动通信有限公司 | Mobile terminal and its radio-frequency transmissions detection method, computer-readable medium |
| CN114337879A (en) * | 2021-12-30 | 2022-04-12 | 京信射频技术(广州)有限公司 | Multi-system access platform and communication system |
-
2018
- 2018-10-19 CN CN201821707695.7U patent/CN208820793U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110505025A (en) * | 2019-08-19 | 2019-11-26 | 惠州Tcl移动通信有限公司 | Mobile terminal and its radio-frequency transmissions detection method, computer-readable medium |
| CN110505025B (en) * | 2019-08-19 | 2022-05-06 | 惠州Tcl移动通信有限公司 | Mobile terminal, radio frequency emission detection method thereof and computer readable medium |
| CN114337879A (en) * | 2021-12-30 | 2022-04-12 | 京信射频技术(广州)有限公司 | Multi-system access platform and communication system |
| CN114337879B (en) * | 2021-12-30 | 2023-11-24 | 京信射频技术(广州)有限公司 | Multi-system access platform and communication system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109413686A (en) | Base station automatization test system, method and apparatus | |
| EP2521282B1 (en) | Method and system for spatial radio-frequency performance testing based on multiple-antenna system | |
| JP7065961B2 (en) | Multi-way switch, radio frequency system and wireless communication device | |
| CN107592378B (en) | Active antenna system, mobile terminal and configuration method of antenna system | |
| CN107682230B (en) | WIFI performance and function tester and test method thereof | |
| CN1787411B (en) | System for testing multi-path fading of mobile terminal in mobile communication network and testing method thereof | |
| CN108988904A (en) | Radio frequency system, antenna switching control method and Related product | |
| CN106253938B (en) | Device and method for day line locking and selection | |
| US9178629B2 (en) | Non-synchronized radio-frequency testing | |
| CN102546058B (en) | Automatic test system, equipment and method based on multi-channel radio remote unit | |
| CN103188022B (en) | A kind of method of testing of Antenna Correlation and system | |
| CN105703849B (en) | A kind of radio frequency a-b box and terminal radio frequency consistency test system | |
| TWI640170B (en) | Method for testing data packet signal transceivers with multiple radio access technologies using interleaved device setup and testing | |
| CN101212745A (en) | Method for mutual interference performance test of dual-mode dual-standby mobile terminal | |
| US20120134400A1 (en) | Testing Device and Method for a Multiple-Input Multiple-Output Wireless Terminal | |
| CN208820793U (en) | Base station testing system | |
| CN106559149B (en) | A kind of throughput testing approach and device of multiple terminals | |
| CN101387680A (en) | Multi-mould radio installation electromagnetical disturbance test system | |
| WO2017184925A1 (en) | Antenna element self-test and monitoring | |
| CN102299749A (en) | Multi-channel testing device and method for RRUs (remote radio units) | |
| WO2015041767A1 (en) | System and method for testing wide band data packet signal transceivers using narrow band testers | |
| CN207283563U (en) | Bluetooth equipment radio frequency test system | |
| CN208539913U (en) | The test device of communication equipment | |
| CN106714200A (en) | Test system and test method of wireless network device | |
| CN114285432A (en) | Communication control method, communication control device, radio frequency system, communication equipment and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200113 Address after: 510663 Shenzhou Road 10, Guangzhou Science City, Guangzhou economic and Technological Development Zone, Guangzhou, Guangdong Patentee after: COMBA TELECOM SYSTEMS (CHINA) Ltd. Address before: 510663 Shenzhou Road 10, Guangzhou Science City, Guangzhou economic and Technological Development Zone, Guangzhou, Guangdong Co-patentee before: COMBA TELECOM SYSTEMS (GUANGZHOU) Ltd. Patentee before: COMBA TELECOM SYSTEMS (CHINA) Ltd. Co-patentee before: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. Co-patentee before: TIANJIN COMBA TELECOM SYSTEMS Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190503 Termination date: 20211019 |