CN110536333A - The test method and system of base station radio frequency remoter unit - Google Patents
The test method and system of base station radio frequency remoter unit Download PDFInfo
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- CN110536333A CN110536333A CN201810521116.8A CN201810521116A CN110536333A CN 110536333 A CN110536333 A CN 110536333A CN 201810521116 A CN201810521116 A CN 201810521116A CN 110536333 A CN110536333 A CN 110536333A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/06—Testing, supervising or monitoring using simulated traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/085—Access point devices with remote components
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Abstract
This application discloses a kind of test methods of base station radio frequency remoter unit, comprising: a, according to the type of pending radio frequency testing use-case carries out test initialization, the type includes uplink index test and downlink index test；B, select first TCH test channel of RRU as current tested channel using a-b box；C, according to the type of the radio frequency testing use-case, corresponding test instrumentation is called；D, using the test instrumentation, according to the radio frequency testing use-case, RF index test is carried out to current tested channel；If e, there is not tested TCH test channel in presently described radio frequency testing use-case, it then selects next TCH test channel in current tested channel as current tested channel using the a-b box, executes step d, otherwise, according to the test result of all TCH test channels, test report is generated.Using the present invention, the automation of RRU testing efficiency, the RRU test for realizing multiple channels can be improved.
Description
Technical field
The present invention relates to mobile communication technologies, more particularly to a kind of test method of base station radio frequency remoter unit (RRU)
And system.
Background technique
The structure of the base station (E-NodeB) of existing long term evolution (Long Term Evolution, LTE) mostly uses distribution
Formula structure.Distributed base station refers to the baseband control unit (Base Band Unit, BBU) and Remote Radio Unit of base station
(Remote Radio Unit, RRU), it is separated respectively as independent module and carried out by optical module-optical fiber connected.
Wherein, BBU completes the information exchange between NodeB and core net, and function includes the physical interface provided with core network communications, with
The CPRI/IR interface of RRU communication, completes uplink and downlink data processing function, provides system clock etc..RRU mainly realizes radio frequency
Transceiver functionality.Receiver receives radio-frequency information by antenna feeder and downconverts to intermediate-freuqncy signal for signal is received, and amplifies
It handles, analog-to-digital conversion, Digital Down Convert, matched filter, is sent to BBU after DAGC；Sender is the downlink base for sending BBU
Band data are formed filtering, digital-to-analogue conversion, reach after radiofrequency signal up-conversion and emit frequency range and handled.RRU, which can provide, to be penetrated
Frequency channel receiving signal and transmitting signal multiplexing function can make to receive signal and emit signal to share an antenna channels, and right
It receives signal and transmitting signal provides filter function.
During LTE networking, base station testing is one of main work, RRU RF index (including reference sensitivity,
Transmission power, modulating vector range error, busy channel bandwidth, Adjacent Channel Leakage Ratio, spuious etc.) not only influence base station itself property
Can, also have a great impact to the transmitting-receiving of other neighbouring base stations.
There are manual test and automatic test to the RRU test mode of LTE base station at present.Wherein, manual testing process is tested
Period is long, and test subjectivity is strong, is unfavorable for the verifying of product and generates test.Automatic test can solve problem above, but
It is that existing automatic test can not achieve really automatically.
In existing automatic test scheme, automates signal source used in index test and frequency spectrograph passes through circulator
It is connected on a channel of RRU, PC ending tool analog signal generates and control signal source and frequency spectrograph completes a channel
Test, if to cover all channels, radio frequency line is manually reconnected re-test by every one channel needs of having surveyed.Due to needing
The replacement channel RRU manually, therefore, it is impossible to realize automation truly.
In addition, existing automatic test scheme simulates cell when testing a channel, using test software
The operation such as link setup, if success just starts radio frequency testing.The test mode is to realize the automatic control of instrument, in setting for base station
It sets and just can be carried out test when meeting condition, if being unsatisfactory for test condition, tester must be newly set base station and to test
Condition is tested again after meeting, it is thus impossible to realize test automation truly.
Summary of the invention
In view of this, the main purpose of the present invention is to provide a kind of test method of base station radio frequency remoter unit and being
System, may be implemented the automation of multiple channel RRU tests, and then improve RRU testing efficiency.
In order to achieve the above object, technical solution proposed by the present invention are as follows:
A kind of test method of base station radio frequency remoter unit, comprising:
A, according to the type of pending radio frequency testing use-case, test initialization is carried out, the type includes upper row index
Test and downlink index test；
B, select first TCH test channel of radio frequency remote unit RRU as current tested channel using a-b box；
C, according to the type of the radio frequency testing use-case, corresponding test instrumentation is called；
D, using the test instrumentation, according to the radio frequency testing use-case, RF index is carried out to current tested channel
Test；
If e, there is not tested TCH test channel in presently described radio frequency testing use-case, selected using the a-b box
Next TCH test channel in current tested channel executes step d as current tested channel, otherwise, logical according to all tests
The test result in road generates test report.
A kind of test macro of base station radio frequency remoter unit, comprising: control equipment, a-b box, circulator, test instrumentation,
Antenna coupling disc, baseband control unit BBU and radio frequency remote unit RRU, wherein a-b box is set to antenna coupling disc and circulator
Between, circulator is connect with test instrumentation；
Equipment is controlled, for triggering the type according to pending radio frequency testing use-case, carries out test initialization, the class
Type includes uplink index test and downlink index test；After test initialization, triggering a-b box selects remote radio list
First TCH test channel of first RRU is as current tested channel；After the completion of the test in current tested channel, if currently
There is not tested TCH test channel in the radio frequency testing use-case, then triggers next survey in the current tested channel of a-b box selection
It pinging as current tested channel, triggering circulator calls corresponding test instrumentation, and triggers the test instrumentation, according to
The radio frequency testing use-case carries out RF index test to current tested channel, when all TCH test channels complete test,
According to the test result of all TCH test channels, test report is generated；
A-b box, the tested channel current for the triggering selection according to control equipment；
Circulator, for calling corresponding test instrumentation according to the triggering of control equipment；
Test instrumentation, for the triggering according to control equipment, according to the radio frequency testing use-case, to current tested channel
Carry out RF index test.
In conclusion the test method and system of base station radio frequency remoter unit proposed by the present invention, sharp during the test
The automatic switchover between multiple channels is realized with a-b box, and the automation for realizing the RRU test in multiple channels therefore can be with
The workload for effectively reducing tester greatly improves test quality and testing efficiency.
Detailed description of the invention
Fig. 1 is the method flow schematic diagram of the embodiment of the present invention；
Fig. 2 is the system structure diagram of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of a-b box in Fig. 2.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, right below in conjunction with the accompanying drawings and the specific embodiments
The present invention is described in further detail.
Core of the invention thought is: during the test, being set to multichannel RRU and test instrumentation by the control of control equipment
Between a-b box, the automatic switchover between multiple channels is realized, in this way, the workload of tester can be effectively reduced, greatly
It is big to improve test quality and testing efficiency.
Fig. 1 is the method flow schematic diagram of the embodiment of the present invention, as shown in Figure 1, the base station radio-frequency that the embodiment is realized is drawn
The test method of remote unit specifically includes that
Step 101, according to the type of pending radio frequency testing use-case, carry out test initialization, the type includes upper
Row index test and downlink index test.
This step is used to carry out the initialization of test environment, test and lower row index due to row index upper in practical application
The corresponding test instrumentation of test it is different, therefore, need exist for distinguishing uplink and downlink index test and initialize different equipment.
Specifically, when the type of the radio frequency testing example is uplink index test, the test instrumentation is signal source；When
When the type of the radio frequency testing example is downlink index test, the test instrumentation is frequency spectrograph.
Preferably, the test initialization of this step may include the following contents:
According to the type of the radio frequency testing use-case, the initial of test instrumentation, baseband control unit BBU and a-b box is carried out
Change；It after successful log BBU, executes the radio frequency testing use-case and the RRU is configured, and used according to the radio frequency testing
The type of example, establishes corresponding business information.
In the above process, the initialization of BBU is realized by logging in BBU.
Preferably, the radio frequency testing use-case can be generated using following methods:
It configures previously according to user-defined test item and test parameter, is surveyed using radio frequency described in tree-like test structural generation
Example on probation.
Specifically, the test parameter can be configured according to actual needs by those skilled in the art, such as can be with
Including bandwidth of cell, frequency point, cell ID ID, send line loss and reception line loss etc..
Step 102 selects first TCH test channel of RRU as current tested channel using a-b box.
Step 103, according to the type of the radio frequency testing use-case, call corresponding test instrumentation.
Specifically, described to call corresponding test instrumentation that realize using following methods:
When the type of the radio frequency testing example is uplink index test, pass through circulator penetrating current tested channel
Frequency line is connect with signal source；
When the type of the radio frequency testing example is downlink index test, by circulator, by current tested channel
Radio frequency line is connect with frequency spectrograph.
Step 104 penetrates current tested channel according to the radio frequency testing use-case using the test instrumentation
Frequency index test.
If there is not tested TCH test channel in step 105~106, presently described radio frequency testing use-case, institute is utilized
Stating a-b box selects next TCH test channel in current tested channel as current tested channel, executes step 104, otherwise,
According to the test result of all TCH test channels, test report is generated.
Here, if all TCH test channels have all tested completion, test report is generated, if logical there are also what is do not tested
Road can then carry out automatically the switching of TCH test channel using a-b box, so as to avoid low efficiency existing for manual mode, operation
The problems such as loaded down with trivial details.
In the above-described embodiments, the test of the RF index mainly generation by control equipment simulating to induction signal, then
By control signal source and frequency spectrograph, index test is carried out, is cut after completing the index test in a channel by controlling a-b box
Next channel is changed to, after waiting test item all in test cases to be fully completed, test result can store preassigned road
Diameter is simultaneously automatically performed table unloading function.
In practical applications, other than the test to RRU RF index, the test of RRU software feature equally may be implemented automatic
Change, the automation realization of software feature such as FDR, DPD etc. no longer need to operate instrument, are mainly established by analog channel
Cell status, and correlation RRU alarm or software feature test result are checked after process.This process relates generally to simulation in BBU
Control interface issuing message or by RRU serial ports carry out corresponding operating.Specifically, software feature test can use following methods
It realizes:
When needing to carry out software feature test, according to pending software feature test case, corresponding software feature survey is carried out
Examination initialization；Trigger the BBU and execute the software feature test case, by the result of the execution and preset expected result into
Row compares, and generates corresponding soft test report according to the comparison result；Discharge the environment money that the software feature test occupies
Source, and the corresponding environment configurations of the test initialization are reverted into default value.
In the above method, after BBU has executed software feature test case, need implementing result and preset expected result
It is compared, so as to realize the automatically verifying of software feature test.
In addition, the release of resource will be carried out in the above method after the completion of test and tests the recovery of environment, in this way, can be with
Ensure the continuity tested between different channels, realizes the automation of entire test process.
Preferably, can realize software feature test initialization using following methods in the above method:
According to the software feature test case, the initialization of BBU and a-b box are carried out；After BBU is initialized successfully, execute
The software feature test case configures the RRU, and according to the software feature test case, establishes corresponding business letter
Breath.
Fig. 2 is the test system structure schematic diagram of base station radio frequency remoter unit corresponding with the above method, as shown in Fig. 2,
The system includes: control equipment, a-b box, circulator, test instrumentation, antenna coupling disc, baseband control unit (BBU) and radio frequency
Extension unit (RRU).
With existing test macro the difference is that introducing a-b box in the present embodiment, which couples set on antenna
Between disk and circulator.In this way, the automatic switchover of TCH test channel may be implemented by a-b box.
Equipment is controlled, for triggering the type according to pending radio frequency testing use-case, carries out test initialization, the class
Type includes uplink index test and downlink index test；After test initialization, triggering a-b box selects remote radio list
First TCH test channel of first RRU is as current tested channel；After the completion of the test in current tested channel, if currently
There is not tested TCH test channel in the radio frequency testing use-case, then triggers next survey in the current tested channel of a-b box selection
It pinging as current tested channel, triggering circulator calls corresponding test instrumentation, and triggers the test instrumentation, according to
The radio frequency testing use-case carries out RF index test to current tested channel, when all TCH test channels complete test,
According to the test result of all TCH test channels, test report is generated.
In practical applications, the control equipment can be realized using computer equipment, can be made up of hub HUB
Internal lan control the other equipment in test macro.
A-b box, the tested channel current for the triggering selection according to control equipment.
Circulator, for calling corresponding test instrumentation according to the triggering of control equipment.
BBU, for generating baseband signal.
RRU is equipment under test, and test index and the software feature test of transceiver are realized in RRU.
Fig. 3 is the schematic diagram of internal structure of a-b box, as shown in figure 3, have a radio frequency line connection circulator in a-b box,
Circulator has direction, according to direction selection come connecting signal source or frequency spectrograph.
Test instrumentation, for the triggering according to control equipment, according to the radio frequency testing use-case, to current tested channel
Carry out RF index test.
When the type of the radio frequency testing example is uplink index test, the test instrumentation is signal source；It is penetrated when described
When the type of frequency test case is downlink index test, the test instrumentation is frequency spectrograph.
Signal source: signal source is mainly used in testing uplink index and calibration line loss.Signal is tested carrying out uplink
Source needs external reference and the external trigger Trigger of BBU offer, just can guarantee that BBU, RRU and signal source are issued in this way
The synchronization of signal.Signal source is set to issue signal, frequency, range value and the setting for needing to set it issue the waveform (function of signal
Distribution of the rate in time, frequency and modulation domain).Circulator is used as far as possible when using signal source, is made power one-way transmission, is prevented
Signal is counter greatly is poured into signal source.
Frequency spectrograph: mainly row index (such as ACLR, Power, EVM) uses frequency spectrograph under test.
Preferably, the control equipment, for triggering the type according to the radio frequency testing use-case, carry out test instrumentation,
The initialization of BBU logon information and a-b box；After successful log BBU, the MML script of the radio frequency testing use-case is executed to institute
It states RRU to be configured, and according to the type of the radio frequency testing use-case, establishes corresponding business information.
It, will be current for when the type of the radio frequency testing example is uplink index test preferably, the circulator
The radio frequency line in tested channel is connect with signal source；It, will be current when the type of the radio frequency testing example is downlink index test
The radio frequency line in tested channel is connect with frequency spectrograph.
Preferably, the control equipment, for being configured previously according to user-defined test item and test parameter, using tree
Shape tests radio frequency testing use-case described in structural generation, and the test parameter includes bandwidth of cell, frequency point, cell ID ID, sends
Line loss and reception line loss.
Preferably, the control equipment, is further used for when needing to carry out software feature test, according to pending soft spy
Property test case, carries out corresponding software feature test initialization；It triggers the BBU and executes the software feature test case, by institute
The result for stating execution is compared with preset expected result, generates corresponding soft test report according to the comparison result；
The environmental resource that the software feature test occupies is discharged, and the corresponding environment configurations of the test initialization are reverted into default
Value.
Preferably, the control equipment, for according to the software feature test case, carrying out the initial of BBU and a-b box
Change；After BBU is initialized successfully, executes the software feature test case and the RRU is configured, and according to the software feature
Test case establishes corresponding business information.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (14)
1. a kind of test method of base station radio frequency remoter unit characterized by comprising
A, according to the type of pending radio frequency testing use-case, test initialization is carried out, the type includes uplink index test
With downlink index test；
B, select first TCH test channel of radio frequency remote unit RRU as current tested channel using a-b box；
C, according to the type of the radio frequency testing use-case, corresponding test instrumentation is called；
D, using the test instrumentation, according to the radio frequency testing use-case, RF index test is carried out to current tested channel；
If e, there is not tested TCH test channel in presently described radio frequency testing use-case, selected using the a-b box current
Tested channel next TCH test channel as current tested channel, step d is executed, otherwise, according to all TCH test channels
Test result generates test report.
2. the method according to claim 1, wherein the test initialization includes:
According to the type of the radio frequency testing use-case, the initialization of test instrumentation, baseband control unit BBU and a-b box is carried out；
After successful log BBU, executes the radio frequency testing use-case and the RRU is configured, and according to the radio frequency testing
The type of use-case establishes corresponding business information.
3. the method according to claim 1, wherein when the type of the radio frequency testing example is uplink index test
When, the test instrumentation is signal source；When the type of the radio frequency testing example is downlink index test, the test instrumentation is
Frequency spectrograph.
4. the method according to claim 1, wherein the corresponding test instrumentation of calling includes:
When the type of the radio frequency testing example is uplink index test, by circulator by the radio frequency line in current tested channel
It is connect with signal source；
When the type of the radio frequency testing example is downlink index test, by circulator by the radio frequency line in current tested channel
It is connect with frequency spectrograph.
5. the method according to claim 1, wherein the method further includes:
It configures previously according to user-defined test item and test parameter, is used using radio frequency testing described in tree-like test structural generation
Example, the test parameter include bandwidth of cell, frequency point, cell ID ID, send line loss and receive line loss.
6. the method according to claim 1, wherein the method further includes:
When needing to carry out software feature test, according to pending software feature test case, corresponding software feature test is carried out just
Beginningization；
It triggers the BBU and executes the software feature test case, the result of the execution and preset expected result are compared
Compared with according to the corresponding soft test report of comparison result generation；
The environmental resource that software feature test occupies is discharged, and the corresponding environment configurations of the test initialization are reverted to silent
Recognize value.
7. according to the method described in claim 6, it is characterized in that, the software feature test initialization includes:
According to the software feature test case, the initialization of BBU and a-b box are carried out；
After BBU is initialized successfully, executes the software feature test case and the RRU is configured, and according to the soft spy
Property test case, establishes corresponding business information.
8. a kind of test macro of base station radio frequency remoter unit characterized by comprising control equipment, a-b box, circulator,
Test instrumentation, antenna coupling disc, baseband control unit BBU and radio frequency remote unit RRU, wherein a-b box is coupled set on antenna
Between disk and circulator, circulator is connect with test instrumentation；
Equipment is controlled, for triggering the type according to pending radio frequency testing use-case, carries out test initialization, the type packet
Include uplink index test and downlink index test；After test initialization, triggering a-b box selects radio frequency remote unit RRU
First TCH test channel as current tested channel；After the completion of the test in current tested channel, if presently described
There is not tested TCH test channel in radio frequency testing use-case, then the next test for triggering the current tested channel of a-b box selection is logical
Road is as current tested channel, and triggering circulator calls corresponding test instrumentation, and triggers the test instrumentation, according to described
Radio frequency testing use-case carries out RF index test to current tested channel, when all TCH test channels complete test, according to
The test result of all TCH test channels generates test report；
A-b box, the tested channel current for the triggering selection according to control equipment；
Circulator, for calling corresponding test instrumentation according to the triggering of control equipment；
Test instrumentation carries out current tested channel according to the radio frequency testing use-case for the triggering according to control equipment
RF index test.
9. system according to claim 8, which is characterized in that the control equipment is surveyed for triggering according to the radio frequency
The type of example on probation, carries out the initialization of test instrumentation, BBU and a-b box；After BBU is initialized successfully, the radio frequency is executed
Test case configures the RRU, and according to the type of the radio frequency testing use-case, establishes corresponding business information.
10. system according to claim 8, which is characterized in that when the type of the radio frequency testing example is the survey of upper row index
When examination, the test instrumentation is signal source；When the type of the radio frequency testing example is downlink index test, the test instrumentation
For frequency spectrograph.
11. system according to claim 8, which is characterized in that the circulator, for working as the class of the radio frequency testing example
When type is uplink index test, the radio frequency line in current tested channel is connect with signal source；When the class of the radio frequency testing example
When type is downlink index test, the radio frequency line in current tested channel is connect with frequency spectrograph.
12. system according to claim 8, which is characterized in that the control equipment, for previously according to user-defined
Test item and test parameter configuration, using radio frequency testing use-case described in tree-like test structural generation, the test parameter includes small
Zone is wide, frequency point, cell ID ID, sends line loss and receives line loss.
13. system according to claim 8, which is characterized in that the control equipment is further used for soft when needing to carry out
When characteristic test, according to pending software feature test case, corresponding software feature test initialization is carried out；Trigger the BBU
The software feature test case is executed, the result of the execution is compared with preset expected result, according to the comparison
Result generate corresponding soft test report；The environmental resource that the software feature test occupies is discharged, and the test is initial
Change corresponding environment configurations and reverts to default value.
14. system according to claim 13, which is characterized in that the control equipment, for being surveyed according to the software feature
Example on probation, carries out the initialization of BBU and a-b box；After BBU is initialized successfully, the software feature test case is executed to described
RRU is configured, and according to the software feature test case, establishes corresponding business information.
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| CN113630191A (en) * | 2021-10-09 | 2021-11-09 | 广东省新一代通信与网络创新研究院 | Radio frequency test method and system of multi-channel equipment |
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| CN110536333B (en) | 2023-03-10 |
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