CN104168585A - GSM/TD-SCDMA/TD-LTE integrated testing instrument and testing method - Google Patents
GSM/TD-SCDMA/TD-LTE integrated testing instrument and testing method Download PDFInfo
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Abstract
The invention relates to a drive test device of a GSM/TD-SCDMA/TD-LTE mobile communication system access network air interface. On the basis of an industrial control tablet computer structure, flexible switching among multiple network systems is supported; and multiple hardware modules like a GPS, a testing terminal, and a data acquisition unit and the like are integrated. According to the invention, the loose coupling modularization structure mode is used and the instrument and testing method are realized by using the multithreading scheduling and dynamic chained library technologies. With the testing instrument and the testing method, multiple functions of tracking, parsing, analyzing and the like of several kinds of air interface signaling protocols can be realized; the coverage quality of the wireless network can be estimated rapidly and efficiently; the defect of poor real-time performance or stability of the existing drive testing instrument can be overcome; and the powerful support can be provided for network optimization and maintenance work development.
Description
Technical field
The present invention relates to mobile communication technology field, relate in particular to the measuring technology of GSM/TD-SCDMA/TD-LTE mobile communication system.
Background technology
Testing equipment for the 2/3/4G of wireless side mainly contains sweep generator in the market, automatic road measuring instrument, terminal test equipment, drive test software etc., because TD-SCDMA network is that China is exclusive, TD-LTE industrial chain maturity is than FDD-LTE in the world, no matter at terminal chip, radio-frequency devices, or all there is larger gap in the aspects such as industry size, and the 4G network of China based on TD-LTE is in the networking initial stage, signaling test instrument and relevant test method are also immature, therefore for fast, critic network quality accurately, carry out the network optimization, be necessary that exploitation is based on 2/3/4G(GSM/TD-SCDMA/TD-LTE) test instrumentation of eating dishes without rice or wine of system, resolve air protocol, extract key parameter, carry out data statistics, being convenient to mobile communication Optimal Maintenance personnel quickness and high efficiency carries out the work.
The design of primary flow path measurement equipment roughly can be divided into two classes in the market: a kind of design is that foreground testing equipment and backstage analysis software are separated, the data that foreground gathers are compressed into bag on a time period, by wireless network, upload to background server, this design advantage is that test is relatively independent with analysis, reduce equipment configratioin requirement, be beneficial to and reduce costs and plant maintenance, it is long that shortcoming is that data are reported the stand-by period, do not reach the requirement of real-time of field optimizing.Another kind of design is by test terminal, GPS is connected by data wire with the PC terminal that testing software is housed, test terminal, GPS is responsible for operational trials and data acquisition, testing software and PC are responsible for analysis and the demonstration of data, and by human-computer dialogue, testing equipment is controlled, this design advantage is that data collection and analysis synchronously completes, real-time, but shortcoming is in actual applications, because the port of connection device is more, the problems such as loose contact or compatibility very easily cause equipment fall mouth or do not connect, affect the accuracy that operating efficiency and data target are analyzed.
Summary of the invention
Problem to be solved by this invention be to provide a kind of by test, location, data acquisition, statistical analysis, present the tester integrated with function height such as human-computer dialogues, can be applicable to flexibly 2/3/4G(GSM/TD-SCDMA/TD-LTE) the drive test analytical work of mobile communications network.
The technical solution adopted for the present invention to solve the technical problems is: the general structure of this tester is industry control slab construction, GPS locating module, wireless communication module, data acquisition module and industry control panel computer interaction data, communication buffer utilizes dual port RAM (Random-access Memory, random access storage device) realize, by this dual port RAM is carried out to functional regional division, can to memory cell, carry out read-write operation simultaneously, each process is separate, do not need mutual wait, guarantee the high-speed cruising of system.Architecture of the present invention adopts modular construction, mainly comprises with lower module:
1) GPS module: be responsible for the collection of the positional informations such as longitude and latitude, height above sea level;
2) wireless communication module: the be responsible for 2/3/4G(GSM/TD-SCDMA/TD-LTE) test of the business such as CS territory/PS territory voice, data, SMS/MMS under network;
3) data acquisition module: the information such as the signaling that responsible collection wireless communication module and GPS module report, data;
4) main control module: control and call other functional modules, realize good in interactive function, from communication buffer, read GPS information and signaling message, administrative messag data, display message decoded result and statistic analysis result, complete the scheduling of program thread;
5) source codec module: by the message data dynamic link library of decoding, the signaling message receiving is decoded, be divided into thick decoding and decoding in detail;
6) message statistical analysis module: by protocol type and type of message, the signaling message collecting is carried out to statistic of classification by message statistical analysis dynamic link library, can certainly establish threshold values cell measurement parameter is added up, for coverage condition analysis and network optimization adjustment provide decision references;
7) data backstage memory module; From data buffer zone, extract origination message data, with LOG file mode, deposit disk in, memory module is placed in main control module, by primary control program, is controlled.This process, in running background, does not affect real-time analysis and presentation speed.
Between all modular units, adopt loose coupling above, interface display, interactive associative operation are realized in main control module, be independent of the processes such as data acquisition, source codec, statistical analysis, separate between each function, interdependency is low each other, such modularized design is conducive to transplanting and the modification of software, convenient upgrading and maintenance.
The present invention also provides a kind of 2/3/4G(GSM/TD-SCDMA/TD-LTE) system signaling method of testing, its feature is as following steps:
Step 1, user arranges test service in upper level applications, and issues test instruction by main control module;
Step 2, main control module is by sending instructions under data acquisition module to GPS, wireless communication module, and each functional module starts test assignment;
Step 3, GPS module gathers the positional informations such as longitude and latitude, height above sea level, and wireless communication module reports NAS layer, layer 2 MAC/RLC layer and layer 3 signaling message, deposits in chronological order data acquisition module planning region in;
Step 4, the data acquisition module time interval in accordance with regulations gathers GPS and cell measurement information, and the signalling message data collecting is carried out to the demarcation of cell, the processing that splits and recombinate, and then deposits communication buffer in;
Step 5, the signalling message data deposit of data backstage memory unit after process these on backstage completes the thick decoding to signalling message data simultaneously;
Step 6, user can click thick decode messages according to demand, and master control issues detailed decoding instruction;
Step 7, to carrying out statistic of classification through decoded message data according to protocol class and type of message; For the feature of GSM/TD-SCDMA/TD-LTE mobile radio communication air protocol stack, the decoded message of message decoder module is carried out signature analysis and extracted and call out relevant parameter;
Step 8, interface display thread notice master control unit shows thick decoding, the result of decoding and statistical analysis in detail.
Tester provided by the invention is for 2/3/4G(GSM/TD-SCDMA/TD-LTE) feature of Radio interface protocols stack in system, from space interface signaling, extract in NAS/RRC/RLC/MAC layer (Non-Access Stratum/radio resource control layer/wireless chain control layer/media access control layer) and RRM, mobile management, call out controlled relevant parameter, by these network parameters are carried out to statistical analysis, for radio network optimization adjustment provides complete data supporting, be conducive to solve the network coverage in network optimization work, channel congestion, wireless parameter arranges the problems such as unreasonable.
Accompanying drawing explanation:
Figure 1 shows that GSM/TD-SCDMA/TD-LTE system network architecture figure;
Figure 2 shows that GSM/TD-SCDMA/TD-LTE integrated road measurement instrument architectural block diagram;
Figure 3 shows that wireless communication module Organization Chart;
Figure 4 shows that data acquisition module Organization Chart;
Figure 5 shows that TI/RI district data command form;
Figure 6 shows that TD/RD district data message format;
Figure 7 shows that the relation between each thread of this tester;
Figure 8 shows that the message format of original communication buffering area;
Figure 9 shows that thick decoded message format;
Figure 10 shows that detailed decoded message format.
Embodiment
Below in conjunction with accompanying drawing, specific implementation of the present invention is described.
Accompanying drawing 1 is 2/3/4G(GSM/TD-SCDMA/TD-LTE) system network architecture figure, GSM/GPRS eats dishes without rice or wine as Um mouth, and TD-SCDMA and TD-LTE eat dishes without rice or wine as Uu mouth, are all open interfaces.
Um Interface is the interface between MS and BTS in GSM/GPRS/EDGE network, MS by this interface, transmit and network between signaling and business information, complete the several functions such as data transmission, mobile management, session management, RRM.
In TD-SCDMA network, Uu interface is UE and Node B(3G mobile base station) between interface, the processing that major function has broadcast, paging, RRC to connect; The enforcement of the judgment that switching and power are controlled; Process management and the control information of Radio Resource; Process base band and radio frequency processing information etc.
In TD-LTE network, Uu interface is UE and eNB(eNode B, evolved base station) between interface, major function has management and the distribution of Radio Resource; RB(Radio Bear, radio bearer) control, connect mobility and control; receive and control, eNB measures configuration and protection, Dynamic Resource Allocation for Multimedia etc.
Road detector obtains the message such as base station broadcast, paging by wireless communication module, record NAS layer, layer 2 MAC/RLC layer, layer 3 RRC/RR layer signaling message, the signaling message that receives/send is placed on to origination message buffering area in chronological order, thick title and the type that solves signaling, stamp timestamp and be placed on result buffer, solve in detail the even concrete meaning of bit representative of cell head and each byte of payload part.
The present invention adopts modular construction, main control module is as center-control parts, according to user, from the operational order of man-machine dialog interface input, control and call other functional modules, from each functional module interface reading information data, completing the scheduling of each thread in program again.Each functional module adopts the mode of dynamic link library to realize loose coupling, facilitates transplanting and the upgrading of software.
The architectural block diagram of tester of the present invention shown in accompanying drawing 2, mainly by following functions module composition.
Built-in GPS module: be responsible for GPS location and GPS synchronizing function, GPS location refers to gather the positional informations such as longitude and latitude, height above sea level, together reports testing software with the cell measurement information of wireless communication module collection.GPS obtains local precision clock information by gps satellite, and finishing equipment clock is synchronous with gps clock.
Wireless communication module: the operational trialss such as support voice business, master data business (Ping, FTP, Http, PDP), short multimedia message, VP; Support the scanning of GSM/TDS/TDL multi-band frequency spectrum, the cell measurement functions such as voice signal Measurement and analysis, Cell searching, multicarrier measurement, RSCP/ISCP/RSSI measurement.
As shown in Figure 3, wireless communication module consists of chip platform, radio-frequency front-end and antenna 3 major parts.Chip platform comprises baseband chip, radio frequency chip, multi-core CPU chip, power management chip etc., and radio-frequency front-end comprises SAW(Surface Acoustic Wave, surface acoustic wave) device such as filter, duplexer, low pass filter, switch.
Existing highly integrated multi-core CPU design in prior art, independent or integrated baseband processing chip is responsible for the processing of physical layer algorithm and upper-layer protocol, realizes in the present invention the multimode interoperability of GSM/TD-SCDMA/TD-LTE system; Radio frequency chip is responsible for the mutual conversion between radiofrequency signal and baseband signal, and existing existing support surpasses the radio frequency chip scheme of 30 frequency ranges, meets the frequency range demand of GSM/TD-SCDMA/TD-LTE system of the present invention far away.
The SAW filter of radio-frequency front-end is responsible for the radiofrequency signal filtering of TDD system receive path; Duplexer is responsible for the duplex switching of FDD system and the radiofrequency signal filtering of reception/sendaisle; Power amplifier is responsible for the radiofrequency signal of transmission channel and is amplified; Switch is responsible for the mutual conversion between receive path and transmission channel.
Antenna system is responsible for the mutual conversion between radiofrequency signal and electromagnetic signal, and the basic configuration of existing network TD-LTE system is DL 2*2 and UL 1*2, therefore antenna configuration is 12 receipts in module.
Data acquisition module: be connected between wireless communication module, GPS module and main control module, gather wireless communication module up-downgoing signaling data stream and gps signal, complete demarcation, fractionation and the restructuring of cell, the information gathering is stamped timestamp and is put into communication buffer, communication buffer is realized with dual port RAM, and the division of functional area as shown in Figure 4.
G region: for depositing the information such as global variable, global configuration.
TI/RI region: the interrupt instruction that TI district sends to wireless communication module and GPS module for transmitting master cpu, by main control module, write, during executing, functional module has no progeny clearly 0.RI district, for transmitting wireless communication module and GPS module to the interruptive command of master cpu, is write by functional module, has no progeny clearly 0 during main control module executes.TI/RI district order structure is identical, as scheme as shown in X, the reason of command code for explaining that interruption is sent, additional information is interrupted implication for further determining, wherein initial address is deposited the start offset address that need to send data, and message-length is deposited the length that need to send signaling message.
TD/RD district: TD deposits in district the data that main control module sends to wireless communication module, and the data that wireless communication module sends to main control module are deposited in RD district.Two region storage configuration are identical, as shown in figure X.If R bit-identify is set to 1, represent that these frame data can send, master control/wireless communication module frames received according to after by R position 0.
GPS region: deposit the gps data that GPS module sends to main control module, storage configuration, working method are identical with TD/RD district.
Each module can read and write data to dual port RAM memory cell at any time, separate between process, does not need mutual wait.Data collecting module collected following message.
1) positional informations such as the longitude and latitude reporting by certain hour interval collection GPS module, height above sea level, current vehicle speed, with the cell measurement information that wireless communication module reports, such as down-run survey parameter, neighboring BS information parameter, pilot time slot scanning information, Serving cell parameter, dedicated transmission channel information, power control information, HSDPA measurement, GSM/GPRS/EDGE measurement, LTE measurement index etc.
2) in Event triggered mode, gather up-downgoing NAS layer, layer 2 MAC/RLC layer and layer 3 signaling message that wireless communication module reports, deposit in chronological order communication buffer in.
Source codec module: specifically comprise 2/3/4G(GSM/TD-SCDMA/TD-LTE) idle message decoder module, decodes dynamic link library to the source codec receiving by message data.
Decoding functions writes in dynamic link library, after each Dynamic Link Library Function has been write, each dynamic link library in decoder module is synthetic source codec module jointly, calls this dynamic link library reach decoding function by primary control program, and message data decoding comprises detailed decoding and thick decoding.
Message statistical analysis module: the statistic of classification of cell measurement parameter and protocol message signaling of all categories is provided, completes the analytic function of various statisticses.Functions of modules realizes by message statistical analysis dynamic link library, and relating to of statistical item can be divided into four classes by elementary event, parameter, business, time delay, under large class, also can segment again.
Elementary event statistics: comprise call attempt, be successfully established/failure of RRC, call answering, call drop, handover success/failure, activate successfully/failure of intersystem handover success/failure, PDP activation request, PDP, position renewal, cell update, Routing Area Update, cell reselection, Attach success/failure, Detach etc.
The statistics of all kinds of parameters can be subdivided into and cover subclass and interoperability subclass.Cover subclass and comprise the basic parameters such as BLER, MOS, TA, RxLevel, RxQual, FER, BCCH_C/I, TCH_C/I, TxPower, NC_RxLever, PCCPCH_C/I, PCCPCH_EcIo, PCCPCH_ISCP, PCCPCH_RSCP, PCCPCH_RSSI, PCCPCH_SIR, PCCPCH_PathLoss, DPCH_C/I, DPCH_ISCP, DPCH_RSCP, DPCH_SIR.
2/3/4G(GSM/TD-SCDMA/TD-LTE) interoperability subclass comprises Qsearch_I, TDD_Qoffset, opens initial condition while surveying, different system starts Measuring Time, gravity treatment time of origin, different system gravity treatment time delay, gravity treatment type (G->T or T->G), the resident duration in UEYuan community, gravity treatment level value (TD/GSM), S while working level value (TD/GSM) while surveying, gravity treatment judgement
search, RAT, Q
rxlevmin, Q
hyst1s, cell reselection biasing, T
reselectionstime lag coefficient, switch decision thresholding T
otherRATand T
used, H
3athe power bias of this community and Serving cell, CIO
otherRATindividual offset etc.
Test service statistics: comprise the assessment test index statistics such as speech business, master data business (Ping, FTP, Http, PDP), short message, VP business, Video Streaming, MMS, WAP, voice and packet data concurrent service.
Self-defined delay statistics: comprising between signaling, event that maximum delay, minimal time delay, average delay and time delay transfinite arranges and the time delay statistics that transfinites.
Data backstage memory module: the message data collecting is converted into LOG file and is saved on disk, be convenient to data readback off-line analysis afterwards.
Main control module: realizing interactive window, is the controlled entity to other functional modules.Main control module calls other functional modules according to user's operational order and carries out operational trials, complete the scheduling of each thread, as wireless parameter and signal collecting, the management of message data, source codec, statistics, analyzing and processing, data storages etc., finally feed back to user by operation result by show process.
User is by the human-computer dialogue window configuration testing task of main control module, control test terminal and carry out business checking, data acquisition parts constantly gather signaling message and wireless parameter deposits buffering area in, data storage part is deposited to these signalling message data on backstage, so that LOG recovering and analysis afterwards, decoding parts are synchronously slightly decoded from buffering area reading out data, and operation result returns to main control module in real time, to can report in time user.In LOG data readback afterwards, user can be by the together importing such as LOG data and the map file of deposit before, base station information, can click a certain moment or select segment data playback sometime to analyze, can decode in detail to thick decoded signaling message, and from bidding standard, signaling message and wireless parameter are carried out to statistical analysis, for the assessment of network quality provides reference.
In order to reduce to greatest extent signaling-information when real-time decoding, showing interface and statistical analysis are parallel, the performance bottleneck problem that system may occur, the present invention takes multithreaded architecture to realize the cooperation relation between each module of road detector, main thread comprises data acquisition thread, data deposit thread, source codec thread, and result demonstration thread, the relation between each thread as shown in Figure 7.Data acquisition thread is responsible for receiving data from testing hardware, and the message data receiving is stored in to message buffer with certain form, and organizational form is shown in accompanying drawing 8, the bit that this field of the numeral in figure is shared.For packet loss not when the two-forty, this thread is set to high priority.
In accompanying drawing 8, message length field represents that SD-PDU data division adds the length of first cell head, and unit is byte; Direction is upstream or downstream; Time tag represents to receive the time of message, is accurate to millisecond; SD-PDU data division represents the physical signaling message data of receiving, storage be byte number.
Thick decoding thread is responsible for the original signaling message receiving decode and decoded result is left in thick decoded result buffering area, and master control Thread context extracts the part that needs real-time decoding, is shown to user.As shown in Figure 9, be thick decoded data format.
Slightly solve message numbering, offset address, direction, time tag, channel type and the type of message in original signaling message, deposit thick decoded result buffering area in, the byte number that this field of numeral in figure is shared, wherein protocol type and type of message provides as follows.
1) protocol type: can be divided into CM(connection management by protocol type), MM(mobile management), RR (RRM) or RRC(Radio Resource are controlled) layer protocol, in CM agreement, can be subdivided into the agreements such as CC, SS, SMS, SM, rrc layer agreement, by channel distribution, can be divided into the channel agreements such as BCCH, RACH, DCCH, DL_CCH, UL_CCH, PCH, DL_SCH, UL_SCH.
2) type of message: call event class, as the RRC in TD event connects foundation, RB connects foundation, the RR in GSM event connects foundation etc.; Handover event class, as net interior switching/gravity treatment, switching/gravity treatment between net, starting measurement etc.; PS service class, as types of events such as FTP/HTTP/POP3/SMTP/SMS/Email/WAP.
3) position associated class: such as location area updating, cell reselection etc.; And the type such as VP event, expansion event.
Corresponding detailed decoding output format, as shown in figure 10, total principle is hierarchical decoding, refinement gradually, tree-shaped demonstration.
1) hierarchical decoding: according to the order of data encapsulation and level, successively decoding, and with all kinds of titles, represent hierarchical relationship respectively.The LTE RRC agreement rrcConnectionSetup message of take is example, decoding solves " RRC-TransactionIdentifier " value and critical extension " criticalExtensions " content successively in detail, in critical extension parameter, successively solve the rlc layer AM transformat of SRB information, logic channel configuration; The ul-SCH channel that MAC layer mainly configures and phr configuration; The configuration informations such as SPS configuration and the various physical channels of physical layer, power control parameters.
2) successively refinement: divide according to different agreements, channel, type of message and field in every one deck, refine to each byte or bit are all had to note.
3) tree-shaped demonstration: take type of message as root node, below the tree-shaped expansion of each layer decoder content, layering dislocation shows, facilitates user to know message level structure, and can find fast critical data.
Interface display thread is responsible for notifying main program to show the content of thick decoding by Event triggered mode: first judge the current thick decode messages whether reporting, have message signaling is sent to main program interface display.
Data storage thread is responsible on backstage message origination message data in large buffering area and is stored in disk with the form of LOG file, so that Installed System Memory consumes while reducing drive test, also for LOG playback and off-line analysis provide data foundation afterwards.Because disk operating is slower with respect to internal memory operation reaction speed, more consuming time, therefore take background thread, on backstage, complete the deposit of signalling message data.Because road detector will guarantee in continuous on-the-spot test, the signalling message data that complete collection is a large amount of and drive test parameter, if be all placed in internal memory, certainly will impact systematic function.
Owing to taking multithreaded architecture, just must consider thread synchronization problem, when each thread is scheduled and when hangs up.
1) when data acquisition thread is write message data to origination message buffering area, imperfect owing to writing message, should not participate in decoding, now can not start thick decoding process, and should be hung up.The message of decoding must be a complete signaling, and when there is the full message of not decoding message buffer, just the mode with Event triggered activates thick decoding thread.
2) when thick decoding thread is put into thick decoded result buffering area decoded result, because decoded data is imperfect, should not be revealed, now hang up interface display thread.In thick decoded result buffering area, have after complete decode messages, in Event triggered mode, activate interface display thread, to user, present decode messages.
3) data storage thread is when storing disk into message data, every message that should guarantee storage is all complete message, this just need to write in origination message buffering area message when imperfect, suspension data storage thread, the complete rear reactivation data storage thread of message data.Also need to guarantee not have the message of deposit not covered by new information simultaneously.For good extensibility, thick decoding and interface display need are separate, and calling in the LOG Off-line data analysis after test of the thread of decoding in detail, dispatches according to user's request.
The Signaling Analyzer of the present invention's design, according to air interface feature, resolves three air interface protocols, extracts relevant parameters, is convenient to mobile radio communication attendant and solves the practical problem in network operation, Optimization Work.And, taked a kind of multithreaded architecture to coordinate the cooperation relation between each module of this tester, each intermodule adopts the frame mode of loose coupling, and this Signaling Analyzer is with good expansibility.
Claims (9)
1. a GSM/TD-SCDMA/TD-LTE integrated road measurement instrument, adopts modularization multithreaded architecture, is characterised in that and comprises following modular unit: (1) GPS module: be responsible for the collection of the positional informations such as longitude and latitude, height above sea level; (2) test terminal module: the be responsible for 2/3/4G(GSM/TD-SCDMA/TD-LTE) test of the business such as CS territory/PS territory voice, data, SMS/MMS under network; (3) data acquisition module: the information such as the signaling that responsible collecting test terminal module and GPS module report, data; (4) main control module: control and call other functional modules, realize good in interactive function, from communication buffer, read GPS information and signaling message, administrative messag data, display message decoded result and statistic analysis result, complete the scheduling of program thread; (5) source codec module: by the message data dynamic link library of decoding, the signaling message receiving is decoded, be divided into thick decoding and decoding in detail; (6) message statistical analysis module: according to protocol type and type of message, the signaling message collecting is carried out to statistic of classification by message statistical analysis dynamic link library, can certainly establish threshold values cell measurement parameter is added up, for coverage condition analysis and network optimization adjustment provide decision references; (7) data backstage memory module; From data buffer zone, extract origination message data, with LOG file mode, deposit disk in, memory module is placed in main control module, by primary control program, is controlled, and this process, in running background, does not affect real-time analysis and presentation speed.
2. GSM/TD-SCDMA/TD-LTE integrated road measurement instrument according to claim 1, it is characterized in that adopting multithreaded architecture to realize the cooperation relation between each module of road detector, main thread comprises data acquisition thread, data deposit thread, and source codec thread and result show thread.
3. GSM/TD-SCDMA/TD-LTE integrated road measurement instrument according to claim 1, it is characterized in that adopting industry control slab construction, integrated GPS locating module, test terminal module, data acquisition module, data interaction is undertaken by communication buffer, buffering area utilizes dual port RAM to realize, and by dual port RAM region is divided, can read while write operation store unit, between each process, do not need mutual wait, can independent high-speed cruising.
4. GSM/TD-SCDMA/TD-LTE integrated road measurement instrument according to claim 1, the parts that it is characterized in that decoding in detail adopt the working method of hierarchical decoding, refinement gradually, tree-shaped demonstration, according to the division of different agreements, channel, type of message, cause in detail the implication that solves each byte or bit, and tree-shaped mode that can contraction/expansion shows, facilitate user to consult.
5. GSM/TD-SCDMA/TD-LTE integrated road measurement instrument according to claim 1, is characterized in that the statistic of classification that message statistical analysis module can be to cell measurement parameter and protocol message signaling of all categories, completes the analytic function of various statisticses.
6. the GSM/TD-SCDMA/TD-LTE integrated road measurement instrument described in one of them according to claim 1-5, is characterized in that adopting between all modular units the frame mode of loose coupling, so that instrument is with good expansibility.
7. a 2/3/4G(GSM/TD-SCDMA/TD-LTE) system signaling method of testing, its feature is as following steps: step 1, GPS module gathers the positional informations such as longitude and latitude, height above sea level, together reports testing software with the cell measurement information of test terminal module collection;
Step 2, test terminal module is carried out operational trials by setting, and preserves NAS layer, layer 2 MAC/RLC layer and layer 3 signaling message;
Step 3, the data acquisition module time interval in accordance with regulations gathers GPS and cell measurement information, and the signalling message data collecting is carried out to the demarcation of cell, the processing that splits and recombinate, and then deposits communication buffer in;
Step 4, the signalling message data deposit of data backstage memory unit after process these on backstage completes the thick decoding to signalling message data simultaneously;
Step 5, decodes in detail to the result of thick decoding;
Step 6, to carrying out statistic of classification through decoded message data according to protocol class and type of message; For the feature of GSM/TD-SCDMA/TD-LTE mobile radio communication air protocol stack, the decoded message of message decoder module is carried out signature analysis and extracted and call out relevant parameter;
Step 7, interface display thread notice master control unit shows thick decoding, the result of decoding and statistical analysis in detail.
8. 2/3/4G(GSM/TD-SCDMA/TD-LTE according to claim 7) system signaling method of testing, is characterized in that the message of data collecting module collected comprises: the positional informations such as the longitude and latitude that GPS module reports, height above sea level, current vehicle speed; The cell measurement information that test terminal module reports, as descending measurement parameter, neighboring BS information parameter, pilot time slot scanning information, Serving cell parameter, dedicated transmission channel information, power control information, HSDPA measure, GSM/GPRS/EDGE measures, LTE measurement index; The up-downgoing NAS layer reporting in Event triggered mode, layer 2 MAC/RLC layer and layer 3 signaling message.
9. 2/3/4G(GSM/TD-SCDMA/TD-LTE according to claim 7) system signaling method of testing, is characterized in that message statistical analysis module supports the statistics to elementary event type, multiple measurement parameter, multiple test service and self-defined time delay.
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| CN104602292A (en) * | 2014-12-26 | 2015-05-06 | 珠海世纪鼎利通信科技股份有限公司 | System and device for implementing switching measuring for 4G LTE community |
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