CN100502321C - Testing method and system - Google Patents
Testing method and system Download PDFInfo
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- CN100502321C CN100502321C CNB2005100026680A CN200510002668A CN100502321C CN 100502321 C CN100502321 C CN 100502321C CN B2005100026680 A CNB2005100026680 A CN B2005100026680A CN 200510002668 A CN200510002668 A CN 200510002668A CN 100502321 C CN100502321 C CN 100502321C
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Abstract
This invention provides a kind of testing method. It concludes: according to transmission format compound indications, base station gets transmission format indication of transmission channel; according to transmission format indication of transmission channel, base station gets data flow length of transmission channel; according to predetermined algorithm and the length of the said data flow, base station uses analog data generator to generate the data of transmission channel; the generated transmission channel data are coded by base station and transmitted to moving station; moving station analyses the received codes. The test result is ascertained according to codes outputted from moving station. This invention also provides a kind of testing system, which contains moving station and base station arranged with analog data generator. It can test each step from base station to moving station in 3G system conveniently. The problems of system can be localized.
Description
Technical field
The present invention relates to the network communications technology, relate in particular to a kind of method of testing and system.
Background technology
Along with the continuous development of 3G (third generation network) agreement and perfect, increasing common carrier in countries in the world and the manufacturer input in the 3G test is also more and more.Because the 3G system very complex, a test often relates to a plurality of parts of 3G, as RNC (radio network controller), and NodeB (base station), UE (travelling carriage) and core net etc., thus make the system problem location become difficult unusually.Many times,, need take various means to come the generation of analog data source for the problem of testing a link or locating a system produces reason.
In the 3G of prior art system testing process, when needs are tested the physical layer function of NodeB, usually adopt the test terminal of third-party instrument such as UB company (as TM100, TM200, TM500) or the test terminal of Agilent company (as E4445) directly solve data before the chnnel coding, for example E4445 can solve the data after the chnnel coding, so that the correctness of validation test.
In the time of UE and UTRAN (land radio access web) cooperation test, may have some wrong generations, as the UE decoding error, at this moment needing to locate this mistake is in which link of system to introduce, therefore, often needing isolating problem is on NodeB, still goes out on RNC, at this moment, also need to utilize the test terminal of third-party instrument such as UB company to test.
When adopting third-party instrument to test, usually need intend producing FP (Frame Protocol) data at the NodeB side form, and these data are that RNC passes through IUB (interface between RNC and the NodeB) oral instructions and gives NodeB, in test process, just lack flexibility like this.In addition, owing in test process, also need third party's instrument, this will increase the cost of test.
Summary of the invention
The objective of the invention is shortcoming, a kind of method of testing and system are provided, just can realize test function, thereby increased the flexibility of test, and saved testing cost by software engineering at above-mentioned prior art.
The invention provides a kind of method of testing that is used for third generation network, comprising:
Indicate according to the transformat of transformat combination indication acquisition transmission channel A, base station;
B, base station obtain the length of the data flow of transmission channel according to the transformat indication of transmission channel;
C, base station utilize the analogue data generator to produce the data of transmission channel according to the length of predetermined algorithm and described data flow;
D, base station will be simulated the transport channel data that produces and be carried out encoding process, and send to travelling carriage;
E, travelling carriage carry out analyzing and processing to the coding of receiving, determine test result according to the travelling carriage output encoder;
Wherein, further comprise after the step C: to broadcast channel BCH, Cell System Frame Number SFN is inserted in the transport channel data front that simulation produces in the base station.
Described steps A further comprises:
A1, obtain the transformat combination calculated according to transformat combination indication;
A2, the transformat indication of calculating transmission channel according to the transformat combination of calculating.
Described step B further comprises: indication obtains the transmission block size and the transmission block number of transmission channel according to the transformat of transmission channel in the base station, and transmission block size and transmission block number are multiplied each other with the length of the data flow of acquisition transmission channel.
Described analogue data generator comprises PN9 data generator, PN2 data generator and fixed data source generator.
Travelling carriage that coding is sent among the described step D is to send according to the mode of stipulating in the TS25.212 agreement.
Coding is sent to travelling carriage and can or continuously coding be sent to travelling carriage among the described step D by predetermined interval.
Described step e further comprises:
Judge whether the travelling carriage output encoder is consistent with desired coding, if consistent,
Finish test procedure then,
Otherwise,
According to the input coding of travelling carriage, judge whether travelling carriage exists fault, if there is fault in travelling carriage, finish test procedure then,
Otherwise,
Judge whether a last link exists fault, till judging out of order link.
Described input coding according to travelling carriage judges whether travelling carriage exists fault further to comprise: if the input coding of travelling carriage is consistent with desired coding, then there is fault in travelling carriage, otherwise there is fault in higher level's link.
Test macro provided by the invention, be used to carry out above-mentioned method of testing, comprise the base station and the travelling carriage that are provided with the analogue data generator, described base station comprises channel encoder, spread spectrum modulator, the transmitter of eating dishes without rice or wine, and described travelling carriage comprises the receiver of eating dishes without rice or wine, extended frequency demodulator, channel decoder.
Utilize the present invention, inner at NodeB for the channel simulation of having set up produces data, thus can easily each link from NodeB to UE in the 3G system be tested, the problem that system is existed positions.And saved testing cost, improved the flexibility of test.
Description of drawings
Fig. 1 shows the illustraton of model from NodeB to UE in the 3G of the present invention system;
Fig. 2 is the schematic diagram of the data generator of the embodiment of the invention;
Fig. 3 shows the schematic diagram of the data format of FP.
Embodiment
Understand and realization the present invention the existing embodiments of the invention of describing in conjunction with the accompanying drawings for the ease of persons skilled in the art.
As shown in Figure 1, basic thought of the present invention is: produce the analogue data of some specific formats in NodeB, data channel encoder, spread spectrum modulator, the transmitter of eating dishes without rice or wine, CCTrCH (code combination transmission channel), the receiver of eating dishes without rice or wine, extended frequency demodulator, the channel decoder with these specific formats sends to UE then.When the analogue data of these specific formats during, according to each the input and output of link, this link is judged, thereby reached the purpose of test through above each link.The present invention is that example is simulated generation FP bag data with the PN9 data generator.
Generally, have following 2 types CCTrCH:
1), special-purpose CCTrCH, the combination that is used to carry one or more DCH;
2), public CCTrCH, be used to carry BCH (broadcast channel), RACH (Random Access Channel), FACH/PCH (forward access channel/paging channel), DSCH (DSCH Downlink Shared Channel).
In above-mentioned CCTrCH, except the CCTrCH of BCH type, the CCTrCH of other type is (as the CCTrCH of carrying FACH/PCH type, the CCTrCH of carrying DSCH type, the CCTrCH of carrying HSDPA type, the CCTrCH of carrying DCH type) can adopt the PN9 data generator to simulate generation FP bag data.The concrete production method and the control mode of FP bag data are described below:
1) notify certain CCTrCH of NodeB to adopt the mode of analogue data by the mode of script;
2) NodeB obtains CTFC (transformat combination of calculating) according to the TFCI (transformat combination indication) of appointment in the script, and then calculates the TFI (transformat indication) of each TrCH (transmission channel) according to CTFC after receiving the control script;
3) NodeB obtains TBSize (transmission block size) and the TBNum (transmission block number) of each TrCH according to the TFI of each TrCH, and with the multiply each other length of the data flow that obtains each TrCH of TBSize and TBNum;
4) NodeB can be according to multinomial x according to the seed of the PN9 that provides in the script number
9+ x
4+ 1 and required data length produce the data of each TrCH; Fig. 2 shows the schematic diagram of the data generator of PN9, in the figure, and behind given every initial value, right shift produces first bit data, and with the 0th with the 4th data by behind the XOR as the 8th value, move in circles according to the method, produce needed data.
5) NodeB will simulate the TrCH data that produce and carry out encoding process according to the mode of stipulating in TS 25.212 agreements, and send to UE, can constantly repeatedly send according to TTI (transmission time interval), also can generate the packet of a plurality of TrCH data continuously according to the mode of PN9 data generator always, the form FP data packet format of described TrCH data, Fig. 3 show the FP bag data structure of PCH.
CCTrCH for the BCH type, because UE need solve SFN (Cell System Frame Number) on the BCH as time reference, so CCTrCH for the BCH type, can insert SFN (NodeB frame number) data of 12bit in the front of PN9 data again, but the BFN that will satisfy 12bit adds that the PN9 data are no more than the data of BCH.
As can be known, a PICH (Page Indication Channel) always interrelates together with a PCH from TS 25.211 agreements, and the bitmap of PICH (bit mapping) information is also always along with the FP of PCH is handed down to NodeB's.
In order to simulate PICH, can specify those several indicating bits of PICH in script is 1, initial SFN and cycle period that PICH sends, and NodeB is shining upon processing according to the mode of TS 25.211 agreements regulation to PICH.
When system testing, at the coding of NodeB side transmission specific format, travelling carriage then can be received respective coding and export corresponding data according to expection, and judges the link that has fault according to the data of output, and concrete deterministic process is as follows.
Judge whether the desired coding of travelling carriage output encoder is consistent, if consistent,
Finish test procedure then,
Otherwise,
Whether the input coding of judging travelling carriage is consistent with desired coding, if consistent, then there is fault in travelling carriage, finish test procedure,
Otherwise,
There is fault in a certain link above illustrating, the link that moves up continues to judge, till judging the link that has fault.
Therefore,, by intending producing the FP data,, can discern from the UE side at an easy rate, thereby reach the effect that the part system problem is isolated, reach the purpose of quick positioning question because these data have certain rules at the NodeB side form according to the present invention.
According to the present invention, can under the FP bag data conditions that does not need on the IUB interface, satisfy the requirement of test NodeB partial function item, at this moment require NBAP (NodeB application) signaling in TS 25.433 agreements also can issue by the script simulation.
Can under the FP data conditions that does not need on the IUB interface, satisfy the test request of the partial function item of NodeB and UE butt joint,, equally also require the NBAP signaling to issue by the script simulation as RTT (Radio Transmission Technology) test.
Data generator of the present invention also can adopt other data generator such as modes such as fixed data source, PN2 except adopting the PN9 data generator.
According to the present invention, can generate each TrCH data according to the TFCI that specifies CCTrCH, also can generate the TrCH data, thereby more easily each TrCH is tested by the TFI that specifies each TrCH among the CCTrCH.
According to the present invention, in test process, TFCI remains unchanged after appointment always, also can be as required TFCI by script mode control CCTrCH constantly change, to test each TrCH more easily.
The present invention also provides the test macro of a kind of 3G of being used for system, comprising: analogue data generator, channel encoder, spread spectrum modulator, the transmitter of eating dishes without rice or wine, CCTrCH, the receiver of eating dishes without rice or wine, extended frequency demodulator, channel decoder.Described analogue data generator is used to produce the data of specific format, and data channel encoder, spread spectrum modulator, the transmitter of eating dishes without rice or wine, CCTrCH, the receiver of eating dishes without rice or wine, extended frequency demodulator, the channel decoder that is produced sent to portable terminal.Portable terminal judges according to the data that received whether this system has problems, if existing problems are then used the link at the further decision problem of above-mentioned method of testing place.
Though described the present invention by embodiment, those of ordinary skills know, without departing from the spirit and substance in the present invention, just can make the present invention that many distortion and variation are arranged, and scope of the present invention is limited to the appended claims.
Claims (9)
1. a method of testing is characterized in that, comprising:
Indicate according to the transformat of transformat combination indication acquisition transmission channel A, base station;
B, base station obtain the length of the data flow of transmission channel according to the transformat indication of transmission channel;
C, base station utilize the analogue data generator to produce the data of transmission channel according to the length of predetermined algorithm and described data flow;
D, base station will be simulated the transport channel data that produces and be carried out encoding process, and send to travelling carriage;
E, travelling carriage carry out analyzing and processing to the coding of receiving, determine test result according to the travelling carriage output encoder;
Wherein, further comprise after the step C: to broadcast channel BCH, Cell System Frame Number SFN is inserted in the transport channel data front that simulation produces in the base station.
2. method of testing according to claim 1 is characterized in that, described steps A further comprises:
A1, obtain the transformat combination calculated according to transformat combination indication;
A2, the transformat indication of calculating transmission channel according to the transformat combination of calculating.
3. method of testing according to claim 1, it is characterized in that, described step B further comprises: indication obtains the transmission block size and the transmission block number of transmission channel according to the transformat of transmission channel in the base station, and transmission block size and transmission block number are multiplied each other with the length of the data flow of acquisition transmission channel.
4. method of testing according to claim 1 is characterized in that, described analogue data generator comprises PN9 data generator, PN2 data generator and fixed data source generator.
5. method of testing according to claim 1 is characterized in that, the travelling carriage that coding is sent among the described step D is to send according to the mode of stipulating in the TS25.212 agreement.
6. method of testing according to claim 1 is characterized in that, coding is sent to travelling carriage and can or continuously coding be sent to travelling carriage by predetermined interval among the described step D.
7. method of testing according to claim 1 is characterized in that, described step e further comprises:
Judge whether the travelling carriage output encoder is consistent with desired coding, if consistent,
Finish test procedure then,
Otherwise,
According to the input coding of travelling carriage, judge whether travelling carriage exists fault, if there is fault in travelling carriage,
Finish test procedure then,
Otherwise,
Judge whether a last link exists fault, till judging out of order link.
8. method of testing according to claim 7, it is characterized in that described input coding according to travelling carriage judges whether travelling carriage exists fault further to comprise: if the input coding of travelling carriage is consistent with desired coding, then there is fault in travelling carriage, otherwise there is fault in higher level's link.
9. test macro, it is characterized in that, described test macro is used to carry out method of testing as claimed in claim 1, described test macro comprises base station and the travelling carriage that is provided with the analogue data generator, described base station comprises channel encoder, spread spectrum modulator, the transmitter of eating dishes without rice or wine, and described travelling carriage comprises the receiver of eating dishes without rice or wine, extended frequency demodulator, channel decoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100026680A CN100502321C (en) | 2005-01-25 | 2005-01-25 | Testing method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100026680A CN100502321C (en) | 2005-01-25 | 2005-01-25 | Testing method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1812348A CN1812348A (en) | 2006-08-02 |
| CN100502321C true CN100502321C (en) | 2009-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100026680A Expired - Fee Related CN100502321C (en) | 2005-01-25 | 2005-01-25 | Testing method and system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100461929C (en) * | 2007-03-28 | 2009-02-11 | 华为技术有限公司 | Network device fault detecting method and device |
| CN100461655C (en) * | 2007-04-28 | 2009-02-11 | 北京交通大学 | System and method for testing channel transmission performance with the practical channel and computer simulation |
| CN101335965B (en) * | 2008-05-16 | 2011-10-12 | 中国移动通信集团广东有限公司 | Node B simulated loading method under RNC centralized control |
| CN102457860B (en) * | 2010-10-25 | 2015-03-11 | 中国移动通信集团广东有限公司 | Positioning method and positioning device for path dark spots in wireless network |
| CN102487526B (en) * | 2010-12-06 | 2014-11-05 | 鼎桥通信技术有限公司 | Protocol conformance test method and system thereof |
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2005
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