CN201160312Y - RRU testing system of base band dragged away subsystem and BBU simulating apparatus - Google Patents
RRU testing system of base band dragged away subsystem and BBU simulating apparatus Download PDFInfo
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Abstract
The utility model provides a test system for remote baseband system RRU, which comprises an operation control platform and a simulation BBU, the operation control platform is communicated with the simulation BBU by Ethernet to receive the information transmitted by RRU and then analyze various information and finally send the information to each module for processing; the simulation BBU is interacted d with the RRU to deliver the control signal direction code of the operation control platform to the RRU system as optical fiber signal, and then decode the signal direction delivered into the RRU, and finally transfer to the operation control platform for processing, simultaneously the received IQ signal of the RRU outputs middle-frequency signal through digital variable-frequency and DAC conversion and the is transferred into a spectrum analyzer, simultaneously a simulation BBU device is also provided. The system simplifies the equipment of baseband test and reduces cost, and has good universality; after test, the RRU can deliver goods directly in no need of more complicated test, thereby improving test efficiency. The test system is an ideal test equipment.
Description
[technical field]
The utility model relates to moving communicating field, is specially a kind of test macro that the baseband extension subsystem RRU of WCDMA in the 3G technology, TD-SCDMA provided and the analog BBU device that is used to test the baseband extension subsystem RRU.
[background technology]
Third generation digital communication technology (3G technology) development in recent years is rapid, become the third generation mobile communication system that radio communication combines with multimedia communications such as Internets, it can handle various ways such as image, music, video, and services such as web page browsing, videoconference, electronic commerce information are provided.In the 3G technology field, distributed base station is made up of RRU (Radio Remote Unit) and BBU (Base Band Unit).RRU and BBU bear the Radio frequency Processing Unit, RF Processing Unit and the Base-Band Processing part of base station respectively, and independent separately the installation is placed apart, is connected by electrical interface or optical interface, forms the distributed base station form.RRU also can be used as the far-pulling module of macro base station except that with BBU docks, have volume little, in light weight, characteristics simply and easily are installed.RRU and BBU are based on 3GPP R4/R5 FDD protocol development, the solution of TD-SCDMA Radio Access Network can be provided at different demands, the different network environments of operator, satisfy the requirement of the wireless coverage of city, suburb, rural area, highway, railway, hot zones etc.
But, become inevitablely though RRU uses in large tracts of land, need to introduce new optical network resource, with
The time, because baseband interface does not have unified standard at present, substantially the BBU that is whose family just must adopt the RRU of whose family, and the compatibility of slave unit, RRU must be supporting with BBU and RNC, producer generally all maintains secrecy about the interface of RRU and BBU, and the test of baseband extension subsystem RRU is necessary in the 3G technology, if comprehensively test, just must have base band resource pool BBU equipment just can finish, but for the manufacturer that can not make BBU equipment, then need to buy the BBU of main equipment manufacturer, and RRU needs to buy different BBU equipment for different producer's supplies, the cost of software and hardware is very high like this, has influenced further developing of whole industry.
Patent Office of the People's Republic of China discloses a kind of name and has been called " baseband protocol data test device and system in the 3-G (Generation Three mobile communication system) " utility model patent (application number: 200510090504.8, open day: on February 21st, 2007), from disclosed technology contents, its testing apparatus comprises BBU, main control computer, RFU, GPS module, base band data analyzer (RNC), core network etc., required equipment is more and huger, and cost is quite high; Wherein the interface that uses only be the SERDES interface, and main equipment manufacturer all adopts the CPRI agreement now, this interface is difficult to compatibility, and its data analysis need be arrived main equipment manufacturer and be bought a complete set of core network device and can finish, for the producer of two wires, then be difficult for having bought, simultaneously, this device needs to adopt a plurality of DSP could send six years eight antenna baseband signals, comparatively trouble.
[utility model content]
The utility model provides a kind of can and be used to test the analog BBU device of baseband extension subsystem RRU to the baseband extension subsystem RRU test macro of WCDMA, TD-SCDMA in the 3G technology, for non-mainstream equipment vendors, can in the RRU system test, finish the up-downgoing IQ data test of complete machine and the test of optical fiber link, thereby solved the problem of above-mentioned existence in the present prior art, can also improve testing efficiency simultaneously.
For achieving the above object, the technical scheme that the utility model proposed is:
A kind of baseband extension subsystem RRU test macro, comprise operation control platform and analog BBU, described operation control platform is used to receive the information of sending from RRU to be measured by Ethernet and analog BBU communication, and handles delivering to each module behind the various information analysis; Described analog BBU is undertaken alternately by optical fiber and RRU, the control signalling coding that is used for operation control platform is that fiber-optic signal is issued to the RRU system, simultaneously after the uploading signaling and decode of RRU, being delivered to operation control platform again handles, the IQ signal that will receive RRU is simultaneously sent into spectrum analyzer through digital frequency conversion, DAC conversion output intermediate-freuqncy signal.
Further, described operation control platform comprises:
Assets management module: the various software and hardware information that are used to obtain RRU;
Initialization administration module: be used for the RRU of simulation is carried out the initialization setting;
Configuration Manager: the operational factor that is used to reconfigure RRU;
State management module: be used for each module running status is monitored or inquired about, make things convenient for the user in time to understand the running status of system, support the automatic backup function of data configuration file and maintenance log, the inquiry of, hardware version soft to RRU, patch release is provided, and the activation of version, support is to status poll, the performance statistics of optical interface physical link and reset, support module and Primary Component reset and the obturation of module with separate block service;
Alarm management module: detect and report the fault of RRU equipment or unusual in real time, and with the kind of alarm, the log record of alarm and the daily record of alarm are uploaded;
Software management module: when being used for when software upgrading, breaking down, make system be automatically retracted back into original version;
Database management module: the daily record that is used for non-volatile media that RRU is stored manages, and simultaneously all signalings of RRU and BBU exchange is followed the tracks of and is stored;
Test and management module: be used for RRU is carried out functional test;
Communication module: be used for information with above-mentioned module according to certain protocol packing, wait to be sently, deliver to each module behind the various information analysis that RRU is uploaded simultaneously and handle;
Interface: the communication interface between operation control platform and the RRU.
Further, described Configuration Manager provides static and dynamic two kinds of configuration modes, and the modification data instant comes into force during described dynamic configuration data; Revise data during described static configuration data and after base station resets, come into force, simultaneously configuration parameter is carried out consistency check.
Further, described test and management module comprises the test of communication link, the delay testing of optical fiber, the test of RRU internal hardware, and the test of the networking performance of the RRU system of networking.
Further, the BBU of described simulation comprises:
Control subsystem: be used for RRU is carried out Operation and Maintenance and signaling process;
Test pattern data memory: be used to store the test pattern data of 3G standard requirement, as the wave file under the test pattern;
Under pass passage: link to each other with the test pattern data memory,, encode, be transported to interface module then with signaling and synchronizing clock signals in the control subsystem with the Wave data file that reads in the test pattern data memory;
Uploading channel: be used for the data-signal of receiving interface module, through decoding, isolate IQ signal and signaling, wherein the IQ data are delivered to the DAC conversion, signaling is delivered to control subsystem and is handled;
The DAC conversion: the IQ data of the RRU that will transmit by uploading channel are transformed into the signal of certain digital intermediate frequency through Digital Up Convert page or leaf DUC, are transformed into the radiofrequency signal of simulation then by DAC, are transported to radio frequency interface;
Interface module: connect the interface of RRU, be used to provide opto-electronic conversion and electric light conversion between BBU and the RRU;
Radio frequency interface:, be the output port of DAC conversion simultaneously with the interface that connects external tester.
Further, the Operation and Maintenance of described control subsystem is for to carry out equipment control, configuration management, alarm management, software administration, monitoring management to RRU; Described signaling process is RRU to be done the management of professional signaling and control signaling, by operation control platform control, the RRU data upload is carried out the DAC conversion.
Further, described interface module opto-electronic conversion is that the uplink baseband data that the RRU that will receive sends are imported uploading channel into; The electric light conversion is the base band data that reads in RRU sends by the test pattern data memory.
Further, technique scheme also comprises signal generator and two spectrum analyzers, described when receiving signal generator connect the radio frequency interface of RRU or the radio frequency interface that emission Time-frequency Spectrum Analysis instrument connects RRU, another spectrum analyzer connects the BBU radio frequency interface of simulation.
The utility model also provides a kind of analog BBU device that is used for the test of baseband extension subsystem RRU, comprising:
Control subsystem: be used for Operation and Maintenance and signaling process, comprise the clock module that the base station synchronization clock can be provided, signaling process and the control module of finishing traffic signaling and control signaling management, described clock module and reference clock join;
Pass passage down: the Wave data file that from the test pattern data memory, reads, encode with signaling and synchronizing clock signals in the control subsystem, be transported to interface module then;
Uploading channel: be used for the data-signal of receiving interface module, through decoding, isolate IQ signal and signaling, wherein the IQ data are delivered to the DAC conversion, signaling is delivered to control subsystem and is handled;
The DAC conversion: link to each other with radio frequency interface with uploading channel, the IQ data that are used for RRU that uploading channel is transmitted are transformed into the signal of certain intermediate frequency through Digital Up Convert DUC, are transformed into the radiofrequency signal of simulation then by DAC, are transported to radio frequency interface;
The test pattern data memory: with pass down passage and link to each other, be used to store the test pattern data of 3G standard requirement, with as the wave file under the test pattern;
Interface module: connect the interface of RRU, be used to provide opto-electronic conversion and electric light conversion between analog BBU and the RRU;
Radio frequency interface:, be the output port of DAC conversion simultaneously with the interface that connects external tester.
Be different from prior art, the utlity model has following technique effect:
1) BBU of the test macro that provides of the utility model by a simulation is set is as pass-through channel, encode through FPBA by operation control platform control signaling and the IQ signal in data storage, through after the opto-electronic conversion, arrive RRU by Optical Fiber Transmission, analyze the downstream signal of RRU by spectrum analyzer, the test of upward signal is the rf input port that signal generator is connected RRU, the signal of signal generator input becomes digital signal by the processing of RRU, by the BBU of Optical Fiber Transmission to simulation, sending into spectrum analyzer after the DAC conversion detects, can finish the up-downgoing IQ data test of RRU complete machine and the test of optical fiber link, simplified the equipment of base band test, can not provide in main equipment manufacturer under the situation of testing equipment BBU, with very low cost, solved the difficult problem that RRU must be tested by the BBU of main equipment manufacturer.
2) measurement system interface that provides of the utility model adopts CPRI interface (PMC7832), can comprise SERDES interface and CPRI interface, when needed, in these two interface protocols any can be set.
3) collection of the utility model test macro base band data can be used the spectrum analyzer of R/S, this is a kind of product that can buy on market, cost is low, versatility is good, do not need other the network equipment just can finish, increase signal source and spectrum analyzer, the performance that can also test less radio-frequency fully.Adopt the ARM chip as control chip simultaneously, with the baseband signal of six years eight antennas of fpga chip transmission, simple, convenient.
The utility model test macro is applicable in RRU test and the later production, and after above-mentioned test was finished, RRU can directly deliver, and did not need complicated more test, so can improve testing efficiency.
The utility model test system and test process is simple, and design is convenient, is a kind of comparatively desirable testing equipment for non-3G main equipment manufacturer.
The utility model also provides a kind of analog BBU device that is used for this test macro simultaneously, to support this test macro.
[description of drawings]
Fig. 1 is the BBU structure in prior art field and is connected block diagram with RNC, RRU;
Fig. 2 is the utility model system block diagram;
Fig. 3 is that the utility model operation control platform application module connects block diagram;
The BBU structure that Fig. 4 simulates for the utility model reaches and is connected block diagram with RRU;
Fig. 5 is the utility model system applies block diagram.
[embodiment]
As shown in Figure 1, in distributed base station, the BBU 200 of actual installation mainly is made of four modules:
1) control subsystem: comprise clock module 210, signaling process 211 and Operation and Maintenance 212, be mainly used in Operation and Maintenance and signaling process, and provide system clock, can finish transmission network, radio network signaling, system's control and Operation and Maintenance, finish functions such as system clock generation and distribution, Operation and Maintenance mainly is that RRU 300 is carried out equipment control, configuration management, alarm management, software administration, monitoring management etc., signaling process mainly is the management of traffic signaling and control signaling, give radio network controller (RNC) 100 with data upload, network controller RNC 100 is all Service Access points that wireless access network UTRAN offers core net CN, and clock module mainly provides the synchronised clock of base station.
2) transmission subsystem 202:
The major function of transmission subsystem 202 is that wireless data packet is sent to base station controller (BSC) from BTS, it mainly is made up of the Iub interface plate, the Iub interface plate comprises NDTI, NAOI, and the interface with RNC 100 can be provided, and finishes the information interaction between BBU 200 and the RNC 100.
3) baseband subsystems 203:
4) interface module 204:
As shown in Figure 2, the utility model is according to BBU system configuration characteristic, be provided with an analog BBU 400, can be used as the analog machine of BBU 200 and only be applied to the test in, it is by operation control platform 500 controls, the BBU400 of simulation carries out communication by Ethernet interface RJ45 and operation control platform 500, links to each other with RRU 300 by optical fiber.In analog BBU 400, be provided with, down going channel, make it as a pass-through channel, just can form the information interaction between the three, simultaneously by set test pattern data memory and DAC conversion in the analog BBU 400, can be to assign to RRU300 behind the fiber-optic signal the control signalling coding of operation control platform 500, simultaneously, analog BBU 400 is after the uploading signaling and decode of RRU300, being delivered to operation control platform 500 again handles, also can will receive the IQ signal of RRU 300 through digital frequency conversion, DAC conversion output intermediate-freuqncy signal is sent into signal analyzer, in addition, power and frequency configuration by operation control platform 500 control RRU 300, and initial configuration, reconfigure, software download, just can finish the electrifying startup of RRU300, reset, the test of module detection and complete machine up-downgoing IQ data test and optical fiber link, thus realized the purpose of this utility model.
According to above-mentioned mentality of designing, the utility model provides a kind of test macro of baseband extension subsystem RRU simultaneously.As shown in Figure 2, the utility model system comprises operation control platform 500 and analog BBU 400, described operation control platform 500 is used to receive the various information of sending from RRU300 by Ethernet and analog BBU 400 communications, and handles delivering to each module behind the above-mentioned information analysis.It is mutual that described analog BBU 400 carries out signal by optical fiber and RRU 300, the downstream signal test is encoded through programmable logic device (FPBA) by the control signaling of operation control platform 500 and the IQ signal in data storage, through after the opto-electronic conversion, be issued to the RRU300 system by fiber-optic signal, analyze by the external spectrum analyzer of RRU radio frequency delivery outlet; The test of upward signal is the rf input port that signal generator is connected RRU, processing by RRU becomes digital signal, by Optical Fiber Transmission in the DAC of BBU 400 of simulation simultaneously after the uploading signaling and decode of RRU 300, being delivered to operation control platform 500 again handles, the IQ signal that also will receive RRU 300 is through digital frequency conversion, DAC conversion output intermediate-freuqncy signal, send into the spectrum analysis instrument that is attached thereto, just can detect sensitivity and other indexs of received signal, realize test RRU 300.
As shown in Figure 3, described operation control platform 500 comprises the following function module:
1) assets management module 501:
Need in the test run process earlier the internal module of RRU to be inquired about,, comprise the supplier information of RRU 300 to obtain the software and hardware information of RRU 300, hardware version, software version is produced sequence number etc.
2) the initialization administration module 504:
This module is mainly used in carries out the initialization setting to RRU 300, comprises address assignment, communication link foundation, configuration management, software download etc.
3) Configuration Manager 502:
Because BBU manufacturer differs, the operational factor of system also is not quite similar, therefore, in test, the operational factor of necessary unified configuration-system is so must reconfigure the parameter of RRU 300, can finish by Configuration Manager 502 is set, can carry out maintenance management to system simultaneously.Data in the configuration file also will be carried out validity checking when starting, to guarantee the stable operation of system.The utility model Configuration Manager 502 provides static and dynamic two kinds of configuration modes, the data of revising during dynamic configuration data can come into force, revising data during static configuration data must just can come into force after base station resets, and configuration parameter is carried out consistency check.Configuration parameter comprises mainly that the sub-district of RRU 300 is provided with, frequency configuration, antenna are provided with etc.
4) state management module 508:
(1) supports each module running status is monitored or inquired about, can make things convenient for the user in time to understand the running status of system;
(2) automatic backup function of support data configuration file and maintenance log, BACKUP TIME interval wherein, catalogue can set up on their own according to user's requirement;
(3) provide the inquiry of, hardware version 300 soft, patch release to RRU, and the activation of version;
(4) support status poll, the performance statistics of optical fiber interface physical link and reset etc.;
(5) support module and Primary Component resets;
(6) obturation of support module with separate block service.
5) alarm management module 503:
Alarm management module can detect and report the fault of RRU 300 equipment or unusual in real time, and with the kind of alarm, the log record of alarm and the daily record of alarm are uploaded.
6) software management module 505:
RRU respectively preserves 300 this locality 2 software versions and versions of data.When software management module 505 is used for breaking down when software upgrading, can make system be automatically retracted back into original version, when having reduced the software download failure, need the possibility of handling to website.
7) database management module 507:
This module is used for the daily record of the non-volatile media of RRU 300 storage is managed, comprise daily record storage, upload, deletion etc., follow the tracks of and be stored in this locality for RRU 300 with all signalings of BBU200 exchange simultaneously, for use in network analysis.
8) the test and management module 506:
This module is mainly used in carries out functional test to RRU 300, and content measurement comprises:
(1) test of communication link, the delay testing of optical fiber;
(2) test of RRU 300 internal hardwares, as veneer, the test of the running status of module;
(3) networking performance of RRU 300 systems test.
9) communication module 509:
Be mainly used in the information of above-mentioned each module according to the processing of packing of certain agreement,, wait to be sently, deliver to each module behind the various information analysis that RRU 300 is uploaded simultaneously and handle then according to the specification queuing.
10) interface 510:
Fig. 4 has showed simulation RRU400 apparatus structure block diagram.Described simulation RRU structure specifically comprises:
1). control subsystem 401:
2). test pattern data memory 423 (NOR Flash S29GL128N10TF101):
Test pattern data memory 423 is mainly used to store the test pattern data of 3G standard requirement, as the wave file under the test pattern.Test pattern data memory 423 internal memories contain the template of WCDMA, or the template of TD-SCDMA.
3). pass passage 424 down:
Passing passage 424 under the logic module in the programmable logic device (FPGA Spartan-3A DSP XC3SD1800A-FG6/FG676/Xilinx) links to each other with test pattern data memory 423, the Wave data file that can from test pattern data memory 423, read, encode with signaling and synchronizing clock signals in the control subsystem 401, be transported to interface module 405 then.
4). uploading channel 422:
Logic module uploading channel 422 in the programmable logic device (FPGA Spartan-3A DSP XC3SD1800A-FG6/FG676/Xilinx) is used for the data-signal of receiving interface module 405, through decoding, isolate IQ signal and signaling, wherein the IQ data are delivered to DAC conversion 421, signaling is delivered to control subsystem 401 and is handled.
5) .DAC conversion 421 (AD9779):
DAC conversion 421 mainly is the signal that the IQ data of the RRU that is transmitted by uploading channel 422 process Digital Up Convert DUC is transformed into certain intermediate frequency, is transformed into the radiofrequency signal of simulation then by DAC, is transported to radio frequency interface 404.
6). interface module 405 (standard interface OBSAI or common radio-frequency interface CPRI):
It is the solution realization of core that interface module mainly adopts with the BRIC-2 of PMC company chip (PMC7832), follow interface specification CPRI or manufacturer's custom protocol of standard, major function provides opto-electronic conversion and electric light translation function, opto-electronic conversion is that the uplink baseband data that the RRU 300 that will receive sends are imported uploading channel 422 into, and the electric light translation function is the base band data that reads in RRU sends by test pattern data memory 423.
7). radio frequency interface 404:
Radio frequency interface 404 is the interfaces that are used for connecting external tester, also is the output port of DAC conversion 421 simultaneously, can link to each other with the signal analysis tester.
In the reality test, analog BBU 400 can not be finished the function of despreading and demodulation for upward signal, for downstream signal, also can not finish the function of modulation.And actual BBU200 must have network controller RNC100 input for all baseband signals.In order to test the signal of RRU300, the utility model also can link to each other the radio frequency interface 404 of analog BBU 400 with radio frequency measuring instrument, as spectrum analyzer (FSP30 9KHz-30GHz (R﹠amp; S)) with signal generator (SMU200A (R﹠amp; S)), by means of above-mentioned instrument, can finish the test of RRU all functions.And for the BBU device requirement of distinct device supplier's reality, 400 needs of analog BBU are revised signaling, just can compatibility, need not revise hardware, and just can reach shared level.
Referring to shown in Figure 5, can understand test process of the present utility model:
1) BBUU400 with simulation carries out initialization earlier, and reconfigure the parameter of BBU400, the control subsystem 401 of analog BBU 400 is arrived instruction issuing by control interface 413 in the configuration of 500 pairs of sub-districts of operation control platform then, control subsystem 401 transmits the programmable logic device (FPGA Spartan-3A DSP XC3SD1800A FG6/FG676/Xilinx) that information such as sub-district foundation and frequency point setting are delivered to analog BBU 400, FPGA is through coding, by the dedicated signaling passage, be that light signal links to each other with RRU 300 with electrical signal conversion through interface 405 (standard interface OBSAI or common radio-frequency interface CPRI).Simultaneously all of RRU 300 report configuration interactive information to be sent to the interface module 405 of analog BBU 300 by optical fiber, through this interface light signal are converted to the signal of telecommunication, deliver to FPGA, are transported to control subsystem 401 through the decoding of FBGA and handle.
2) descending test:
The downstream signal trend is for shown in the illustrated solid line.After the order of operation control platform 500 output test downstream parameter, the BBU300 fill order of simulation, FPGA reads the IQ data from test pattern data memory 423, by interface module 405 is electrical signal conversion light signal, be sent to RRU 300, RRU 300 is converted to the signal of telecommunication to light signal then, connects signal analyzer B800 at its radio frequency interface, can test descending radio frequency parameter index.
3) up test:
The upward signal trend is for shown in the illustrated double dot dash line.The RRU radio frequency interface is connected signal generator 600, by RRU 300 inner down-conversions, the ADC conversion, become digital IQ signal, by optical fiber interface the signal of telecommunication is become light signal, be uploaded to the interface of analog BBU 400, the interface module 404 of analog BBU 400 becomes the signal of telecommunication to light signal, export digital IQ signal and professional signaling, the specialty signaling exports control subsystem 401 to and handles, the IQ signal is connected to spectrum analyzer (FSP309KHz-30GHz (R﹠amp by DAC conversion 421 output analog signals by radio frequency interface 404; S)) quality of analytic signal by the connection of this mode, can be tested all reception indexs of RRU 300.
The external synchronization signal of RRU 300 is connected to reference clock 403 by analog BBU 400, by the sine wave signal of signal source output 61.44MHz, synchronous by clock chip, be distributed to other chips, make it synchronous, simultaneously common radio-frequency interface CPRI interface provides synchronizing signal and RRU 300 synchronous.
The above embodiment has only expressed the basic execution mode of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (9)
1, a kind of baseband extension subsystem RRU test macro, it is characterized in that: comprise operation control platform and analog BBU, described operation control platform is by Ethernet and analog BBU communication, be used to receive the information of sending from RRU to be measured, and handle delivering to each module behind the various information analysis; Described analog BBU is undertaken alternately by optical fiber and RRU, the control signalling coding that is used for operation control platform is that fiber-optic signal is issued to the RRU system, simultaneously after the uploading signaling and decode of RRU, being delivered to operation control platform again handles, the IQ signal that will receive RRU is simultaneously sent into spectrum analyzer through digital frequency conversion, DAC conversion output intermediate-freuqncy signal.
2, a kind of baseband extension subsystem RRU test macro according to claim 1, it is characterized in that: described operation control platform comprises:
Assets management module: the various software and hardware information that are used to obtain RRU;
Initialization administration module: be used for the RRU of simulation is carried out the initialization setting;
Configuration Manager: the operational factor that is used to reconfigure RRU;
State management module: be used for each module running status is monitored or inquired about, make things convenient for the user in time to understand the running status of system, support the automatic backup function of data configuration file and maintenance log, the inquiry of, hardware version soft to RRU, patch release is provided, and the activation of version, support is to status poll, the performance statistics of optical interface physical link and reset, support module and Primary Component reset and the obturation of module with separate block service;
Alarm management module: detect and report the fault of RRU equipment or unusual in real time, and with the kind of alarm, the log record of alarm and the daily record of alarm are uploaded;
Software management module: when being used for when software upgrading, breaking down, make system be automatically retracted back into original version;
Database management module: the daily record that is used for non-volatile media that RRU is stored manages, and simultaneously all signalings of RRU and BBU exchange is followed the tracks of and is stored;
Test and management module: be used for RRU is carried out functional test;
Communication module: be used for information with above-mentioned module according to certain protocol packing, wait to be sently, deliver to each module behind the various information analysis that RRU is uploaded simultaneously and handle;
Interface: the communication interface between operation control platform and the RRU.
3, a kind of baseband extension subsystem RRU test macro according to claim 2 is characterized in that: described Configuration Manager provides static and dynamic two kinds of configuration modes, and the modification data instant comes into force during described dynamic configuration data; Revise data during described static configuration data and after base station resets, come into force, simultaneously configuration parameter is carried out consistency check.
4, a kind of baseband extension subsystem RRU test macro according to claim 2, it is characterized in that: described test and management module comprises the test of communication link, the delay testing of optical fiber, the test of RRU internal hardware, and the test of the networking performance of the RRU system of networking.
5, a kind of baseband extension subsystem RRU test macro according to claim 1, it is characterized in that: the BBU of described simulation comprises:
Control subsystem: be used for RRU is carried out Operation and Maintenance and signaling process;
Test pattern data memory: be used to store the test pattern data of 3G standard requirement, as the wave file under the test pattern;
Under pass passage: link to each other with the test pattern data memory,, encode, be transported to interface module then with signaling and synchronizing clock signals in the control subsystem with the Wave data file that reads in the test pattern data memory;
Uploading channel: be used for the data-signal of receiving interface module, through decoding, isolate IQ signal and signaling, wherein the IQ data are delivered to the DAC conversion, signaling is delivered to control subsystem and is handled;
The DAC conversion: the IQ data of the RRU that will transmit by uploading channel are transformed into the signal of certain digital intermediate frequency through Digital Up Convert DUC, are transformed into the radiofrequency signal of simulation then by DAC, are transported to radio frequency interface;
Interface module: connect the interface of RRU, be used to provide opto-electronic conversion and electric light conversion between BBU and the RRU;
Radio frequency interface:, be the output port of DAC conversion simultaneously with the interface that connects external tester.
6, a kind of baseband extension subsystem RRU test macro according to claim 5, it is characterized in that: the Operation and Maintenance of described control subsystem is for to carry out equipment control, configuration management, alarm management, software administration, monitoring management to RRU; Described signaling process is RRU to be done the management of professional signaling and control signaling, by operation control platform control, the RRU data upload is carried out the DAC conversion.
7, a kind of baseband extension subsystem RRU test macro according to claim 5 is characterized in that: described interface module opto-electronic conversion is that the uplink baseband data that the RRU that will receive sends are imported uploading channel into; The electric light conversion is the base band data that reads in RRU sends by the test pattern data memory.
8, according to the arbitrary described a kind of baseband extension subsystem RRU test macro of claim 1～7, it is characterized in that: also comprise signal generator and two spectrum analyzers, described when receiving signal generator connect the radio frequency interface of RRU or the radio frequency interface that emission Time-frequency Spectrum Analysis instrument connects RRU, another spectrum analyzer connects the BBU radio frequency interface of simulation.
9, a kind of analog BBU device that is used for the test of baseband extension subsystem RRU is characterized in that comprising:
Control subsystem: be used for Operation and Maintenance and signaling process, comprise the clock module that the base station synchronization clock can be provided, signaling process and the control module of finishing traffic signaling and control signaling management, described clock module and reference clock join;
Pass passage down: the Wave data file that from the test pattern data memory, reads, encode with signaling and synchronizing clock signals in the control subsystem, be transported to interface module then;
Uploading channel: be used for the data-signal of receiving interface module, through decoding, isolate IQ signal and signaling, wherein the IQ data are delivered to the DAC conversion, signaling is delivered to control subsystem and is handled;
The DAC conversion: link to each other with radio frequency interface with uploading channel, the IQ data that are used for RRU that uploading channel is transmitted are transformed into the signal of certain intermediate frequency through Digital Up Convert DUC, are transformed into the radiofrequency signal of simulation then by DAC, are transported to radio frequency interface;
The test pattern data memory: with pass down passage and link to each other, be used to store the test pattern data of 3G standard requirement, with as the wave file under the test pattern;
Interface module: connect the interface of RRU, be used to provide opto-electronic conversion and electric light conversion between analog BBU and the RRU;
Radio frequency interface:, be the output port of DAC conversion simultaneously with the interface that connects external tester.
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| CNU2007201710287U CN201160312Y (en) | 2007-11-23 | 2007-11-23 | RRU testing system of base band dragged away subsystem and BBU simulating apparatus |
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| CNU2007201710287U CN201160312Y (en) | 2007-11-23 | 2007-11-23 | RRU testing system of base band dragged away subsystem and BBU simulating apparatus |
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