CN102299749A - Multi-channel testing device and method for RRUs (remote radio units) - Google Patents
Multi-channel testing device and method for RRUs (remote radio units) Download PDFInfo
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- CN102299749A CN102299749A CN2010102112323A CN201010211232A CN102299749A CN 102299749 A CN102299749 A CN 102299749A CN 2010102112323 A CN2010102112323 A CN 2010102112323A CN 201010211232 A CN201010211232 A CN 201010211232A CN 102299749 A CN102299749 A CN 102299749A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
Abstract
The invention discloses a multi-channel testing device and method for RRUs (remote radio units), which are used for solving the technical defect that the RRUs cannot be automatically tested in batches in the prior art. The device mainly comprises a control circuit and a test circuit, wherein the control circuit is used for receiving a test command, and converting the test command into a control command; and the test circuit is used for receiving uplink radio-frequency signals and carrying out an uplink test on two or more RRUs according to the control command and the uplink radio-frequency signals as well as receiving two or more downlink radio-frequency signals transmitted by the RRUs and carrying out a downlink test on each RRU according to the control command and the downlink radio-frequency signals. Compared with the prior art, the device and method can be used for realizing the technology of automatically testing radio frequencies of the RRUs in batches, improving the testing efficiency, and reducing the testing strength.
Description
Technical field
(Radio Remote Unit, RRU) radio-frequency (RF) index measuring technology relate in particular to multichannel testing apparatus of a kind of RRU and method to the present invention relates to the less radio-frequency extension unit.
Background technology
(Radio Remote Unit, technical characterstic RRU) are divided into indoor Base Band Unit BBU (Base band Unit) with the base station and remote termination is that radio frequency zooms out RRU two parts to the less radio-frequency extension unit.The radio-frequency channel of RRU has comprised transmission channel and receive path.According to actual networking and application scenarios, the RRU port number can be 1,2,4,6,8 etc.
Transmitter emphasis wireless index comprises: power output, neighboring trace is revealed, error vector magnitude (Error Vector Magnitude, EVM), the radiation template, spuious, occupied bandwidth, frequency error and dynamic range etc., the RRU antenna opening links to each other with frequency spectrograph such as FSG frequency spectrograph by the radio frequency cable, background PC computer control frequency spectrograph is tested respective item automatically, and record and analytical test result.
Receiver emphasis wireless index comprises: sensitivity, adjacent channel scanning (adjacent channel scan, ACS), and selectivity in the channel (In-channel selectivity, ICS), dynamic range, receive intermodulation etc., (Source Measure Unit's RRU antenna opening SMU) links to each other by radio frequency cable and signal source such as source measuring unit, automatic respective item is tested in background PC computer control signal source, and record and analytical test result.
RRU dispatches from the factory and will test through strict wireless index, and when producing RRU in batches, RRU quantity is thousands of usually, and RRU is multichannel usually, and short-term and so on can't cover the index test of RRU, has aggravated test intensity and task amount.And existing RRU test substantially all is that the manual operation test channel is switched, and the instrument parameter manually is set, and manually preserves and the analytical test result, and inefficiency and accuracy are difficult to guarantee.
Summary of the invention
Technical problem to be solved by this invention is that a kind of less radio-frequency extension unit measuring technology need be provided, and solving prior art can't carry out in batches the technological deficiency of test automatically to RRU.
In order to solve the problems of the technologies described above, the invention provides a kind of less radio-frequency extension unit testing apparatus, comprise control circuit and test circuit, wherein:
Described control circuit is used for the acceptance test instruction, and this test instruction is converted to control command;
Described test circuit is used to receive up radiofrequency signal, according to described control command and described up radiofrequency signal two or more less radio-frequency extension units (RRU) is carried out up test; And be used to receive the downlink radio-frequency signal that two or more RRU send, according to described control command and described downlink radio-frequency signal each RRU is carried out descending test.
Preferably, described test circuit comprises reception transmission test network and lane testing network, wherein:
Described reception transmission test network is used for connecting signal source and frequency spectrograph respectively, receives the described up radiofrequency signal of described signal source transmission and is transmitted to each RRU, receives the described downlink radio-frequency signal of each RRU transmission and is transmitted to described frequency spectrograph;
Described lane testing network is used for according to described control command and up radiofrequency signal each passage of each RRU being carried out described up test respectively, according to described control command and downlink radio-frequency signal each passage of each RRU is carried out described descending test respectively.
Preferably, when each RRU did not support the inaccessible function of up-downgoing obturation/separate, described lane testing network further comprised the switching controls switch, and described switching controls switch is used to realize the switching between each passage of each RRU.
Preferably, aforementioned reception transmission test network comprises the selection control switch, and described selection control switch is used for optionally transmitting described up radiofrequency signal and downlink radio-frequency signal, and described up test and descending test are switched.
In order to solve the problems of the technologies described above, the present invention also provides a kind of less radio-frequency extension unit method of testing, this method is used for less radio-frequency extension unit (RRU) testing apparatus tests two or more multichannel RRU, and this RRU testing apparatus comprises control circuit and test circuit;
This method comprises:
Described control circuit acceptance test is instructed, and this test instruction is converted to control command;
Described test circuit receives up radiofrequency signal, according to described control command and described up radiofrequency signal each RRU is carried out up test, and receive the downlink radio-frequency signal that each RRU sends, according to described control command and described downlink radio-frequency signal each RRU is carried out descending test.
Preferably, described test circuit receives described up radiofrequency signal, and according to the step that described control command and described up radiofrequency signal are carried out described up test, comprising:
The described up radiofrequency signal that described test circuit received signal source sends also is transmitted to each RRU, and according to described control command and up radiofrequency signal each passage of each RRU is carried out described up test respectively.
Preferably, described test circuit receives described downlink radio-frequency signal, and the step according to described control command and described downlink radio-frequency signal carry out described descending test comprises:
Described test circuit receives the described downlink radio-frequency signal that each RRU sends and is transmitted to frequency spectrograph, and according to described control command and described downlink radio-frequency signal each passage of each RRU is carried out described descending test respectively.
Compared with prior art, the invention solves RRU radio frequency automatization testing technique in batches, provide RRU complete machine to be measured to automatically switch, RRU test channel to be measured automaticallyes switch, method of testing and hardware device that the test of receiver transmitter is automaticallyed switch.Technical scheme of the present invention has improved testing efficiency, has alleviated test intensity.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the composition schematic diagram of the RRU testing apparatus that provides of the embodiment of the invention;
Fig. 2 is the composition schematic diagram of middle test circuit embodiment illustrated in fig. 1;
Fig. 3 is the schematic diagram that middle lane testing network embodiment illustrated in fig. 2 comprises relay switch;
Fig. 4 is the schematic diagram that middle lane testing network embodiment illustrated in fig. 2 does not contain relay switch;
Fig. 5 is the schematic flow sheet of the RRU method of testing that provides of the embodiment of the invention.
Embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, how the application technology means solve technical problem to the present invention whereby, and the implementation procedure of reaching technique effect can fully understand and implements according to this.
At first, if do not conflict, each feature among the embodiment of the invention and the embodiment can mutually combine, all within protection scope of the present invention.In addition, can in computer system, carry out in the step shown in the flow chart of accompanying drawing such as a set of computer-executable instructions, and, though there is shown logical order in flow process, but in some cases, can carry out step shown or that describe with the order that is different from herein.
Embodiment one, a kind of RRU testing apparatus
As shown in Figure 1, the RRU testing apparatus of present embodiment mainly comprises power supply circuits 110, control circuit 120 and test circuit 130, wherein:
Power supply circuits 110 are used to the power supply of control circuit and test circuit;
Test circuit 130, be connected with these power supply circuits 110 and control circuit 120, the up radiofrequency signal that the received signal source sends when being used for up the test also is transmitted to two or more RRU, and be used for downlink radio-frequency signal that descending when test send RRU and be transmitted to frequency spectrograph and carry out demodulation, under the support of the test energy that these power supply circuits 110 provide, according to the control command that this control circuit 120 sends two or more RRU are carried out multichannel up and/or descending test, obtain test result and output.
In the present embodiment, power supply circuits 110 comprise a power input interface and a power output interface, and this power input interface is used to insert external power source, and this power output interface is used to RRU to be measured that above-mentioned control energy signal and test energy signal are provided.
Above-mentioned control circuit 120 provides the communication function of PC and testing apparatus, the internal switch of controlled this device of PC.
The RRU testing apparatus of present embodiment also comprises an earthed circuit, is used for equipment ground, and the circuit ground of power supply circuits 110, control circuit 120 and test circuit 130 all comes together in this earthed circuit.
As shown in Figure 2, this test circuit 130 comprises the Control Network 131 that powers on, receives transmission test network 132 and lane testing network 133, wherein:
The Control Network 131 that powers on is used to two or more RRU that controlled power supply P is provided;
Receive transmission test network 132, be used to connect signal source and frequency spectrograph, the up radiofrequency signal that the received signal source sends also sends to lane testing network 133 and each RRU, and the downlink radio-frequency signal that each RRU is sent is transmitted to lane testing network 133 and frequency spectrograph;
The above-mentioned Control Network 131 that powers on also can be used as the part of power supply circuits 110 and is arranged in these power supply circuits 110.
Above-mentioned reception transmission test network 132 comprises a signal source radio frequency interface, a frequency spectrograph radio frequency interface, a repeat circuit and more than one radio-frequency channel interface, wherein:
The signal source radio frequency interface is used to connect signal source, the up radiofrequency signal that the received signal source sends;
The frequency spectrograph radio frequency interface is used to connect frequency spectrograph, and downlink radio-frequency signal is transmitted to frequency spectrograph;
The radio-frequency channel interface is used to connect each radio-frequency channel of each RRU.
Fig. 4 is the situation that does not comprise the switching controls switch, and the passage of testing is that the control by RRU self is in and separates blocked state, and other passages to be tested are in blocked state.
By controlling the selection control switch in the aforementioned reception transmission test network 132, optionally transmit up radiofrequency signal and downlink radio-frequency signal, can between up test and descending test, switch.
Embodiment two, RRU method of testing
As shown in Figure 5, present embodiment mainly comprises the steps:
Step S510, each test channel of test the present invention above-mentioned testing apparatus to frequency spectrograph, each test channel to signal source, the external cable that is connected to each test channel and the line loss of device; Test line loss value is used for the amplitude biasing of compensating signal source and frequency spectrograph;
Step S520 is connected to RRU to be measured and test instrumentation on the above-mentioned testing apparatus of the present invention;
Step S530 is connected to tester, testing apparatus of the present invention on the PC;
Step S540, the up radiofrequency signal that the received signal source sends also is transmitted to two or more RRU to be measured;
Step S550 receives the test instruction that the user sends by PC, according to this test instruction and this up radiofrequency signal, each passage of each RRU to be measured is carried out up test, obtains test result and exports;
Step S560 receives the downlink radio-frequency signal that two or more RRU to be measured send, and this downlink radio-frequency signal is transmitted to frequency spectrograph;
Step S570 receives the test instruction that the user sends by PC, according to this test instruction and this downlink radio-frequency signal, each passage of each RRU to be measured is carried out descending test respectively, obtains test result and output.
Need to prove that above-mentioned steps S540 and step S560 might not have tangible sequencing in actual applications, can be that the two carries out alternately together simultaneously.
Said method embodiment of the present invention and device embodiment, the technical scheme of testing and automaticallying switch automatically between many passages of a plurality of RRU of automatic control is provided, after once connecting circuit, just can a large amount of RRU be tested automatically, avoid manually changing RRU, when reducing testing cost, testing efficiency and measuring accuracy have been improved.
In an application example of present embodiment, be that the RRU to two two passages carries out automatic test.The project of selecting radio frequency to test is set reaches, line loss is set, the number of batch testing RRU and the passage number of RRU are set by standard.
After first RRU powered on, testing apparatus of the present invention was finished the radio-frequency (RF) index test of first first passage of RRU, and comprising the switching of up test and descending test, and control instrument is finished the radio frequency testing project.
After finishing the radio-frequency (RF) index test of first first passage of RRU, carry out the radio-frequency (RF) index test of second passage of first RRU, comprising the switching of up test and descending test, and control instrument is finished the radio frequency testing project.
First RRU test finishing back is electric down, and second RRU powers on.The same with two passages of first RRU of test, two passages to this second RRU carry out radio-frequency (RF) index test (comprising the switching of up test and descending test) respectively, and control instrument is finished the radio frequency testing project.
The test of two each passages of RRU is finished, automatically output record and analysis result.
RRU in the above-mentioned application example does not support up-downgoing passage obturation.
In another practical application of present embodiment, be that the RRU to two two passages carries out automatic test, wherein RRU supports up-downgoing passage obturation.Testing apparatus of the present invention is after the up-downgoing obturation of obturation and second passage is separated in the up-downgoing of first passage of finishing first RRU, carry out the radio-frequency (RF) index test (comprising the switching of up test and descending test) of first passage again, and finish radio frequency testing index clauses and subclauses.After the up-downgoing obturation of obturation and first passage is separated in the up-downgoing of second passage finishing first RRU, carry out the radio-frequency (RF) index test (comprising the switching of up test and descending test) of second passage again, and finish radio frequency testing index clauses and subclauses.After two lane testings of first RRU finish, second RRU tested.When testing first passage of second RRU, finishing the up-downgoing of first passage separates after the up-downgoing obturation of inaccessible and second passage, carry out the radio-frequency (RF) index test (comprising the switching of up test and descending test) of first passage again, and finish radio frequency testing index project.After the up-downgoing obturation of obturation and first passage is separated in the up-downgoing of second passage finishing second RRU, carry out the radio-frequency (RF) index test (comprising the switching of up test and descending test) of second passage again, and finish radio frequency testing index clauses and subclauses.
The test of two each passages of RRU is finished, automatically output record and analysis result.
Those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
Though the disclosed execution mode of the present invention as above, the execution mode that described content just adopts for the ease of understanding the present invention is not in order to limit the present invention.Technical staff in any the technical field of the invention; under the prerequisite that does not break away from the disclosed spirit and scope of the present invention; can do any modification and variation what implement in form and on the details; but scope of patent protection of the present invention still must be as the criterion with the scope that appending claims was defined.
Claims (7)
1. a less radio-frequency extension unit testing apparatus is characterized in that, comprises control circuit and test circuit, wherein:
Described control circuit is used for the acceptance test instruction, and this test instruction is converted to control command;
Described test circuit is used to receive up radiofrequency signal, according to described control command and described up radiofrequency signal two or more less radio-frequency extension units (RRU) is carried out up test; And be used to receive the downlink radio-frequency signal that two or more RRU send, according to described control command and described downlink radio-frequency signal each RRU is carried out descending test.
2. device according to claim 1 is characterized in that, described test circuit comprises reception transmission test network and lane testing network, wherein:
Described reception transmission test network is used for connecting signal source and frequency spectrograph respectively, receives the described up radiofrequency signal of described signal source transmission and is transmitted to each RRU, receives the described downlink radio-frequency signal of each RRU transmission and is transmitted to described frequency spectrograph;
Described lane testing network is used for according to described control command and up radiofrequency signal each passage of each RRU being carried out described up test respectively, according to described control command and downlink radio-frequency signal each passage of each RRU is carried out described descending test respectively.
3. device according to claim 2 is characterized in that:
When each RRU did not support the inaccessible function of up-downgoing obturation/separate, described lane testing network further comprised the switching controls switch, and described switching controls switch is used to realize the switching between each passage of each RRU.
4. device according to claim 2 is characterized in that:
Aforementioned reception transmission test network comprises the selection control switch, and described selection control switch is used for optionally transmitting described up radiofrequency signal and downlink radio-frequency signal, and described up test and descending test are switched.
5. a less radio-frequency extension unit method of testing is characterized in that, this method is used for less radio-frequency extension unit (RRU) testing apparatus tests two or more multichannel RRU, and this RRU testing apparatus comprises control circuit and test circuit;
This method comprises:
Described control circuit acceptance test is instructed, and this test instruction is converted to control command;
Described test circuit receives up radiofrequency signal, according to described control command and described up radiofrequency signal each RRU is carried out up test, and receive the downlink radio-frequency signal that each RRU sends, according to described control command and described downlink radio-frequency signal each RRU is carried out descending test.
6. method according to claim 5 is characterized in that, described test circuit receives described up radiofrequency signal, and according to the step that described control command and described up radiofrequency signal are carried out described up test, comprising:
The described up radiofrequency signal that described test circuit received signal source sends also is transmitted to each RRU, and according to described control command and up radiofrequency signal each passage of each RRU is carried out described up test respectively.
7. method according to claim 5 is characterized in that described test circuit receives described downlink radio-frequency signal, and the step according to described control command and described downlink radio-frequency signal carry out described descending test comprises:
Described test circuit receives the described downlink radio-frequency signal that each RRU sends and is transmitted to frequency spectrograph, and according to described control command and described downlink radio-frequency signal each passage of each RRU is carried out described descending test respectively.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102112323A CN102299749A (en) | 2010-06-23 | 2010-06-23 | Multi-channel testing device and method for RRUs (remote radio units) |
| PCT/CN2010/080446 WO2011160415A1 (en) | 2010-06-23 | 2010-12-29 | Multi-channel test means and method for radio remote unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102112323A CN102299749A (en) | 2010-06-23 | 2010-06-23 | Multi-channel testing device and method for RRUs (remote radio units) |
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| CN102299749A true CN102299749A (en) | 2011-12-28 |
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| CN2010102112323A Pending CN102299749A (en) | 2010-06-23 | 2010-06-23 | Multi-channel testing device and method for RRUs (remote radio units) |
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| WO (1) | WO2011160415A1 (en) |
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| CN102546058A (en) * | 2011-12-30 | 2012-07-04 | 成都市大富科技有限公司 | Automatic test system, equipment and method based on multi-channel radio remote unit |
| WO2017036189A1 (en) * | 2015-09-01 | 2017-03-09 | 中兴通讯股份有限公司 | Automatic test method and device |
| CN107547144A (en) * | 2016-06-27 | 2018-01-05 | 中兴通讯股份有限公司 | Radio frequency test system |
| CN107769868A (en) * | 2016-08-18 | 2018-03-06 | 中兴通讯股份有限公司 | Remote Radio Unit and its detection method |
| CN107889139A (en) * | 2016-09-30 | 2018-04-06 | 中国移动通信有限公司研究院 | A kind of signal test system and method |
| CN110311739A (en) * | 2019-07-30 | 2019-10-08 | 京信通信系统（中国）有限公司 | Calibration test system, method, apparatus and the storage medium of multichannel RRU |
| CN110536333A (en) * | 2018-05-25 | 2019-12-03 | 成都鼎桥通信技术有限公司 | The test method and system of base station radio frequency remoter unit |
| CN111148141A (en) * | 2019-12-27 | 2020-05-12 | 京信通信系统（中国）有限公司 | LTE base station, LTE base station test system and method |
| CN113518053A (en) * | 2021-06-15 | 2021-10-19 | 电子科技大学 | Adaptive correction EVM (error vector magnitude) testing system and method |
| CN114499708A (en) * | 2020-10-27 | 2022-05-13 | 罗森伯格技术有限公司 | System and method for testing radio remote unit |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102546058B (en) * | 2011-12-30 | 2015-06-10 | 成都市大富科技有限公司 | Automatic test system, equipment and method based on multi-channel radio remote unit |
| CN102546058A (en) * | 2011-12-30 | 2012-07-04 | 成都市大富科技有限公司 | Automatic test system, equipment and method based on multi-channel radio remote unit |
| WO2017036189A1 (en) * | 2015-09-01 | 2017-03-09 | 中兴通讯股份有限公司 | Automatic test method and device |
| CN107547144B (en) * | 2016-06-27 | 2021-09-28 | 中兴通讯股份有限公司 | Radio frequency test system |
| CN107547144A (en) * | 2016-06-27 | 2018-01-05 | 中兴通讯股份有限公司 | Radio frequency test system |
| CN107769868B (en) * | 2016-08-18 | 2022-03-29 | 中兴通讯股份有限公司 | Remote radio unit and detection method thereof |
| CN107769868A (en) * | 2016-08-18 | 2018-03-06 | 中兴通讯股份有限公司 | Remote Radio Unit and its detection method |
| CN107889139A (en) * | 2016-09-30 | 2018-04-06 | 中国移动通信有限公司研究院 | A kind of signal test system and method |
| CN110536333A (en) * | 2018-05-25 | 2019-12-03 | 成都鼎桥通信技术有限公司 | The test method and system of base station radio frequency remoter unit |
| CN110536333B (en) * | 2018-05-25 | 2023-03-10 | 成都鼎桥通信技术有限公司 | Method and system for testing base station radio remote unit |
| CN110311739A (en) * | 2019-07-30 | 2019-10-08 | 京信通信系统（中国）有限公司 | Calibration test system, method, apparatus and the storage medium of multichannel RRU |
| CN110311739B (en) * | 2019-07-30 | 2022-03-25 | 京信网络系统股份有限公司 | Calibration test system, method and device for multi-channel RRU and storage medium |
| CN111148141A (en) * | 2019-12-27 | 2020-05-12 | 京信通信系统（中国）有限公司 | LTE base station, LTE base station test system and method |
| CN111148141B (en) * | 2019-12-27 | 2023-05-16 | 京信网络系统股份有限公司 | LTE base station, LTE base station testing system and LTE base station testing method |
| CN114499708A (en) * | 2020-10-27 | 2022-05-13 | 罗森伯格技术有限公司 | System and method for testing radio remote unit |
| CN113518053A (en) * | 2021-06-15 | 2021-10-19 | 电子科技大学 | Adaptive correction EVM (error vector magnitude) testing system and method |
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| Publication number | Publication date |
|---|---|
| WO2011160415A1 (en) | 2011-12-29 |
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Application publication date: 20111228 |