CN103098417A - Comprehensive evaluation system for soft-switch usability - Google Patents
Comprehensive evaluation system for soft-switch usability Download PDFInfo
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- CN103098417A CN103098417A CN2010800672738A CN201080067273A CN103098417A CN 103098417 A CN103098417 A CN 103098417A CN 2010800672738 A CN2010800672738 A CN 2010800672738A CN 201080067273 A CN201080067273 A CN 201080067273A CN 103098417 A CN103098417 A CN 103098417A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/65—Re-configuration of fast packet switches
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/55—Prevention, detection or correction of errors
- H04L49/555—Error detection
Abstract
A comprehensive evaluation system for soft-switch usability is provided, which includes a protocol interface module (101) for loading a protocol stack to realize the interface corresponding to an evaluated soft-switch device (100); a test script module (102) for providing protocol coherence test script and performance test script; a comprehensive analysis module (103) for analyzing every test of the evaluated soft-switch device comprehensively; a display module (104) for interacting between the comprehensive evaluation system and subscribers. The comprehensive analysis module (103) includes a weight management unit (1031) for setting weights for every test; a comprehensive assessment unit (1032) for making comprehensive assessment for the evaluated soft-switch device (100) according to results of every test and the weights corresponding to every test. The display module (104) includes a configuration management unit (1041) for providing configuration management to the comprehensive evaluation system for the subscribers; an evaluation result display unit (1042) for displaying the comprehensive assessment obtained by the comprehensive analysis module (103). By the technical solution, comparability of evaluation results between different soft-switch devices is achieved, so to simplify the evaluation work for the soft-switch devices.
Description
The present invention relates to soft switch field, more particularly to a kind of comprehensive evaluation system for soft-switch usability for a kind of comprehensive evaluation system for soft-switch usability technical field.Background technology is said
With the development of telecommunication technology, the Softswitch based on packet-switch technology is gradually replacing the conventional switch equipment based on circuit switching.Because the agreement that soft switch book equipment is related to is more also more complicated, using the teaching of the invention it is possible to provide the producer of Softswitch is also more, so for most of operator's operation maintenance personnels, how to choose and assess Softswitch is a cumbersome and time consuming thing.Importantly, be not Protocol Expert because operation maintenance personnel is general in itself, they also be difficult to from only indicate by whether simple test result to one objective and accurate assessment result of evaluated equipment formation.
At this stage, the assessment to soft switch is generally realized by two kinds of test.One is interface protocol test, and another is performance test, i.e., Bulk Call is tested.
The purpose of interface protocol test is for checking whether the interface protocol that evaluated equipment is provided is consistent with the requirement of international standard, only employ the interface protocol for meeting international standard, the probability that evaluated equipment can be just reduced as far as is incompatible with equipment that other producers provide, it is ensured that the intercommunication of equipment room.
Performance test is mainly capacity and the investigation of ability to equipment, sees that can equipment provide service for substantial amounts of user simultaneously.
For the test of this two type, there is two kinds of instrument respectively on the market：Protocol analyzer and ability meter.Although existing protocol analyzer can be tested the uniformity of agreement, the result to test can only also be given by how many item, and failure is how many item, lacks the in-depth analysis to test result.Particularly, the test result of distinct device can not be compared to each other.For example, the 1st of the equipment Session Initiation Protocol of A producers does not pass through, and the 10th of the Bearer Independent Call Control Protocol of the equipment of B producers does not pass through, from item number, the unsanctioned item number of the two producers is all 1, but this does not imply that the ability of the equipment of Liang Ge producers is the same.Because different agreements the role of in a device different, the weight of same agreement disparity items
It is also different.Therefore, the result of test must not simply weigh the ability of evaluated equipment with percent of pass.
Equally, for ability meter, the problem of can not comparing there is also test result.For example,
SIP agreements can reach that 300CAPS soft switch may not be certain that 200CAPS soft switch can be reached better than BICC agreements in performance.Even if being both Session Initiation Protocol, some factors call the time kept, whether calling is with media, the length of every message, if using reliable Temporary Response, whether using precondition as each（Precondition) etc., also finally influence whether evaluated equipment CAPS indexs.Thus, it is ensured that the result of performance test has comparativity, a kind of benchmark must be just provided in advance, with ensure every time test institute use call model, various parameters and mechanism it is all completely the same, this is also the existing ill-conceived place of performance test instrument.
On the whole, current soft switch test instrumentation lacks the in-depth analysis to test result, and test result lacks comparativity, it is difficult to allow people to tested Softswitch one intuitive and accurate understanding of formation.The content of the invention is for defect and deficiency present in prior art, the purpose of the present invention is to propose to a kind of comprehensive evaluation system for soft-switch usability, to carry out comprehensive assessment for different Softswitch, and assessment result it is directly perceived it is accurate, with comparativity.
In order to achieve the above object, the present invention proposes a kind of comprehensive evaluation system for soft-switch usability, including：Protocol interface module, for loading protocol stack, realizes interface corresponding with evaluated Softswitch；Test script module, for providing testing protocol consistency script and performance test script for evaluated Softswitch；
Comprehensive analysis module, for carrying out comprehensive analysis to the every test for being evaluated Softswitch, including:Weight administrative unit, for for every test setting weight；
Comprehensive Assessment unit, for providing Comprehensive Assessment to evaluated Softswitch according to every test result and every corresponding weight of test；
Display module, for interacting between the integrated estimation system and user, including：
Configuration management element, for providing the user the configuration management to the integrated estimation system；Assessment result unit is shown, for showing the Comprehensive Assessment that the comprehensive analysis module is drawn.
As the preferred of above-mentioned technical proposal, the Comprehensive Assessment unit is used to calculate score of the evaluated Softswitch in testing protocol consistency, the score in performance test and comprehensive score by pre-defined algorithm according to every test result and every corresponding weight of test.
As the preferred of above-mentioned technical proposal, the score in the testing protocol consistency, the pre-defined algorithm of score and comprehensive score in performance test is as follows：
^sut _ con ' ' con ' per " per
Scon = ^ Sprotoi * Wprotot
i=\
Sproto=- ~ k=l wherein, represents the comprehensive score of evaluated Softswitch, ＆.Evaluated score of the Softswitch in testing protocol consistency is represented, S^ represents evaluated score of the Softswitch in performance test,
W represents the weight of interface protocol uniformity test, represents the weight of performance test, the scoring that Sprac^ presentation protocols i is obtained in testing protocol consistency, Wpra^ presentation protocols i weight, bkRepresent that kth tests whether to pass through, be then value " 1 ", otherwise value " 0 ", WkRepresent the weight of kth test.
As the preferred of above-mentioned technical proposal, the score in performance test according to the evaluated Softswitch of call attempt number per second is preset with the Comprehensive Assessment unit.
As the preferred of above-mentioned technical proposal, the display assessment result unit is additionally operable to show the score of every test.
As the preferred of above-mentioned technical proposal, the performance test script in the test script module also includes information preset in database, the database using two sections as the preferred of above-mentioned technical proposal, in the comprehensive analysis module to be included：The test purpose of items test, severity level, a certain test not by when may cause the problem of, how improved suggestion, one or more information in points for attention in regular maintenance.
It is used as the preferred of above-mentioned technical proposal, also include display in the display module and assess suggestion unit, test purpose for showing unsanctioned test item according to every test result, severity level, the problem of may causing, how improved suggestion, one or more information in points for attention in regular maintenance.
Comprehensive evaluation system for soft-switch usability proposed by the present invention has following feature：The method of testing of the standard based on international endorsement of assessment；
The visual result of assessment, and available for the comparison between the equipment of different suppliers and between different software versions；
The compatibility of Softswitch interface protocol and the performance of equipment can be investigated out；
The work load of operator's buying and operation maintenance personnel can so be mitigated, while reducing the technical threshold of evaluation work.
Therefore, the present invention can at least have the advantages that：
Realize the comparativity of the assessment result between different Softswitch：The present invention is using the method for testing of standard, unified test case, unified test structure, unified assessment algorithm, it is ensured that the comparativity of the assessment result finally provided.The assessment result is applicable not only to the comparison between the Softswitch of different manufacturers production, and suitable for the comparison between the different editions of the same a Softswitch of same manufacturer production.
Simplify the evaluation work of Softswitch：The assessment test often protocol test one by one of conventional Softswitch, different test cases require also different to test structure and the configuration data of equipment under test.Test is complicated and test period is longer.In fact, test case specified in international standard is mainly used in the exploitation of equipment, therefore the content investigated can be more detailed, but for the user of equipment, may can more focus on some basic functions and protocol-compliant sex chromosome mosaicism.Therefore, the present invention can do some to test case and simplify, while using the test structure suitable for all test cases, once configured as long as being so evaluated equipment and doing, all tests can be just completed, the efficiency for assessing test is substantially increased, shortens the cycle of assessment.
Below in conjunction with the accompanying drawings, the embodiment to the present invention is described in further detail.For person of ordinary skill in the field, from detailed description of the invention, above and other objects, features and advantages of the invention will be evident.Illustrate schematic diagrames of the Fig. 1 for the first preferred embodiment of integrated estimation system proposed by the present invention；
Fig. 2 is the Session Initiation Protocol performance test schematic flow sheet of first preferred embodiment of the invention；
Fig. 3 is the Bearer Independent Call Control Protocol performance test schematic flow sheet of first preferred embodiment of the invention；
Fig. 4 is the test structure schematic diagram using the first preferred embodiment of the present invention；
Fig. 5 is the schematic diagram of the second preferred embodiment of integrated estimation system proposed by the present invention.
Corresponding English full name and the Chinese translation control of accompanying drawing Chinese and English abbreviation is as follows：
SUT:System under Test systems under test (SUT)
UA:User Agent user agents
INVITE:Invite
SDP:Session Description Protocol Session Description Protocols
PRACK：The card of the provisional responses of Provisional Response Acknowledgement
ACK:Acknowledgement is confirmed
MSC Server:The blunt business device of Mobile Switching Center Server mobile switching centres month
IAM:Initial Address Message initial address messages
Connect forward, Tunnel data：Forward connection, tunneling data
Connect forward, plus notification：Forward connection, needs attached notify
APM:Application transport Message Application Transport Mechanism
Action = Connected:Cloud masterpiece=connected
COT:Continuity connectedness message
ACM:Address Complete Message Address Complete Messages
ANM:Answer Message response messages
REL:Release release messages
RLC:Release Complete Release complete embodiments
As shown in figure 1, a kind of first preferred embodiment of comprehensive evaluation system for soft-switch usability, including：Protocol interface module 101, for loading protocol stack, realizes interface corresponding with evaluated Softswitch；Test script module 102, for providing testing protocol consistency script and property for evaluated Softswitch
Can test script；
Comprehensive analysis module 103, for carrying out comprehensive analysis to the every test for being evaluated Softswitch；Display module 104, for interacting between the integrated estimation system and user；
Wherein, comprehensive analysis module 103 includes：
Weight administrative unit 1031, for for every test setting weight；
Comprehensive Assessment unit 1032, for providing Comprehensive Assessment to evaluated Softswitch according to every test result and every corresponding weight of test；
Display module 104 includes：
Configuration management element 1041, for showing and providing the user the configuration management to integrated estimation system；Assessment result unit 1042 is shown, for showing the Comprehensive Assessment that the comprehensive analysis module is drawn.The present invention is using the method for testing of standard, unified test case, unified test structure, unified assessment algorithm, it is ensured that the comparativity of the assessment result finally provided.
Citing describes above-mentioned each module and the embodiment and beneficial effect of unit in detail below：
(1) protocol interface module 101:
Soft switch generally has both of which, i.e. fixed network soft switch and the soft switch of mobile network.Fixed network soft switch is usually used in voip network, and its key protocol is SIP (session Initiation Protocol, session initiation protocol）H.248;And the soft switch of mobile network is also referred to as MSC server, its key protocol is BICC (Bearer Independent Call Control, the call control protocol unrelated with carrying）H.248, wherein, BICC agreements are by M3UA (User Adaptation Layer, the MTP3 user adaptation layers of Message Transfer Part level 3）Standing grain Jie SCTP (Stream Control Transmission Protocol, SCTP）It is carried on IP layers.Therefore, for different application scenarios, the demand of docking port agreement is different.Protocol interface module 101 can load corresponding protocol stack according to configuration on interface, realize corresponding interface function.Therefore, the integrated estimation system of the present invention is allow to support various protocols, to support the test and assessment of various Softswitch to lay a good foundation.
(2) test script module 102:
For testing protocol consistency, ETSI (European Telecommunications Standards Institute, ETSI）Standing grain mouthful IETF (Internet Engineering Task Force, interconnection
Net engineering task force）H.248 etc. Deng International Standards Organization for BICC, M3UA, SCTP, SIP, agreement, all has been provided for corresponding method of testing.Test script module 102 is based on these international standards, is that each agreement all provides a whole set of test set.
As a rule, the test event that international standard is provided all is in order at exploitation purpose, so the test set provided is more complete, item number also compares many.The compatibility for being to help operation maintenance personnel to assess Softswitch interface protocol in view of a primary object of the present invention, so can be simplified completely on the basis of international standard.The workload for assessing test can be so reduced, shortens assessment cycle.
For performance test, at present, international standard does not all provide unified testing process and call model also.In order to ensure that the result of performance test has comparativity, unified test script and call model is also very important.
Because fixed soft switch and mobile softswitch are respectively using Session Initiation Protocol and Bearer Independent Call Control Protocol as call control protocol, so performance test will be considered based on the disposal ability of both agreements.It is recommended that Session Initiation Protocol performance test script uses testing process shown in Fig. 2, and precondition is not used without media, Bearer Independent Call Control Protocol is using the testing process shown in Fig. 3, using preceding to immediate mode, without media.Call model is kept for 5 seconds according to each calling, and total testing time is 1 hour.Those skilled in the art will appreciate that the testing process of other two-parts can also be used.
The two flows all use two-part test structure, that is, set up the calling from assessment system to evaluated equipment, and set up two sections of signalling routes of calling from evaluated equipment to assessment system.Advantage using the test structure of two-part is：
1) evaluated equipment is reduced to data configuration（Configuration requirement).Evaluated equipment need not configure corresponding termination number and IP address of terminal, as long as there is corresponding route data just can be the calling originated can be transmitted into callee side.This is when Bulk Call is tested, and advantage is particularly evident, because being usually to need thousands of terminal quantities in Bulk Call test.
2) method of testing is simplified.Due to the testing process of the unified standard of use, in test, all test events, including performance test event can only with a kind of test structure, i.e. Fig. 4 test structure.More importantly, this test structure and testing process are applied to all Softswitch, when testing different Softswitch, as long as being connected according to Fig. 4 structure, and some basic office datas are configured, test can be started if IP address, signaling point code etc..
3) Session Initiation Protocol and BICC some important functions can be tested.In addition to basic call control function, additionally it is possible to verify supports of the SIP to reliable provisional response, mode and continuity check function etc. are set up in SDP offer and SDP answer interaction, BICC tunnel carrying.The two flows are regarded as flow the most classical in Session Initiation Protocol and the numerous flows of Bearer Independent Call Control Protocol.
(3) comprehensive analysis module 103:
Comprehensive analysis module 103 includes weight administrative unit 1031 and Comprehensive Assessment unit 1032;Wherein：Weight administrative unit 1031 is used for the distribution of weight and the setting of weight.Specifically, its can be each type test（Protocol test or performance test）, each agreement even each test case distribution weight.All weighted values are all settable, as further preferred, can also provide recommended value.The recommended value of each weight is as follows：
For example, the weight Wi of each test event can be evaluated by expert in testing protocol consistency, using the five-grade marking system, and 5 points represent the test event importance highest, 1 point represents that importance is minimum, the weight that the score value provided by several experts is averaged as the test event.After the weight Wi of each test event is determined, it is input in " weight administrative unit 1031 ", is that each test event distributes the weight determined by weight administrative unit 1031.
Comprehensive Assessment unit 1032 provides a comprehensive grading that can be used for lateral comparison according to pre-defined algorithm according to the test result of items test to evaluated Softswitch.Preferably, comprehensive grading can be by as follows
The con of ^sut mono-Y V con 1 ^ per " per ( 1-1 )
Scon = ^ Sprotoi ^ Wprotoi ( 1-2)
^ bk * w, * 100
Sproto =―—— ( ι_ ) k=\
Wherein：
＆w represents the comprehensive score of evaluated Softswitch；
SconRepresent evaluated score of the Softswitch in testing protocol consistency；
Represent evaluated score of the Softswitch in performance test；
wconRepresent the weight of interface protocol uniformity test；
Represent the weight of performance test；
The scoring that Sprai^ presentation protocols i is obtained in testing protocol consistency；
Wpra^ presentation protocols i weight, its value is the value that sets in above-mentioned weight administrative unit 1031, it would however also be possible to employ recommended value；
bkRepresent that kth tests whether to pass through, by then value " 1 ", otherwise value " 0 ";
WkThe weight of kth test is represented, value suggestion is provided by several experts, the suggestion weight averaged as this.
Wherein, value can be according to CAPS (the Call Attempt Per Second, call attempt number per second of actual test）Following table is compareed to obtain.Wherein, SIP tests use Fig. 3 flow, and BICC tests use Fig. 4 flow.It should be noted that the calls that CAPS here is initiated all referring to UA1 or MSC Server A, and be all the calling without media.
Agreement CAPS Sper
SIP > 650 100
SIP 500 80
SIP 400 60
SIP 300 40
SIP 200 20
SIP <50 0
BICC ^400 100
BICC 300 80
BICC 250 60
BICC 200 40
BICC 100 20
BICC <50 0
(4) display module 104:
Display module 104 is the interface interacted between the integrated estimation system of the present invention and user, mainly includes configuration management element 1041, display Comprehensive Assessment unit 1042.Configuration management element 1041 mainly provides some configuration management functions of system, includes the selection of evaluated Softswitch application scenarios（Fixed soft switch or the selection of mobile softswitch）, the configuration of protocol stack, the configuration of the definition of weight parameter and distribution, IP address and port numbers etc..
Display assessment result unit 1042 shows the comprehensive grading obtained by the above-mentioned calculating of Comprehensive Assessment unit 1032 after being tested evaluated Softswitch.
Display assessment result unit 1042 can also show the score of each test event, the score of such as performance test, the score of Session Initiation Protocol test, or even can also look at the test result of each test case.
The present invention is using the method for testing of standard, unified test case, unified test structure, unified assessment algorithm, it is ensured that the comparativity of the assessment result finally provided.The assessment result is applicable not only to the comparison between the Softswitch of different manufacturers production, and suitable for the comparison between the different editions of the same a Softswitch of same manufacturer production.
For the operation maintenance personnel of soft switch, except being concerned about which project of tested soft switch not in addition to, its
It is real to be also concerned about which problem is these unsanctioned projects may bring.And the latter is typically soft switch operation maintenance personnel more concern, because soft switch operation maintenance personnel is due to itself specialty background and limited experience, Second Problem can clearly be answered for it by being often more desirable to authoritative expert.
Therefore, another preferred embodiment of the invention is as shown in figure 5, be that on the basis of above-described embodiment, database 1033 is added in comprehensive analysis module 103.Preset information includes in the database：The test purpose of items test, test not by when may cause the problem of, how improved suggestion, one or more information in points for attention in regular maintenance.
Correspondingly, display is also included in display module 104 and assesses suggestion unit 1043, for showing the problem of unsanctioned test item may cause, how improved suggestion, one or more information in points for attention in regular maintenance.
The present invention, which is exactly based on, sets up database, is that each test case associates an expert conclusion and suggestion, realizes the analysis to test result, meet the demand of user.
As a result of the database for the expertise that is stored with, after assessment test terminates, assessment system is easy to provide equipment under test the assessment result of expert's level, while the suggestion such as some recommendation on improvements or points for attention can also be provided.The conclusion of assessment be not simply by whether, but for unsanctioned test item, provide deeper into analysis, the problem of explanation may be present.
Although, the clear explanation by above example and its accompanying drawing of the invention, but in the case of without departing substantially from spirit of the invention and its essence, person of ordinary skill in the field works as can make various corresponding variations and modifications according to the present invention, but these corresponding variations and modifications should all belong to the scope of the claims of the present invention.
Claims (1)
- Claims1st, a kind of comprehensive evaluation system for soft-switch usability, it is characterised in that including：Protocol interface module, for loading protocol stack, realizes interface corresponding with evaluated Softswitch；Test script module, for providing testing protocol consistency script and performance test script for evaluated Softswitch；Comprehensive analysis module, for carrying out comprehensive analysis to the every test for being evaluated Softswitch, including:Weight administrative unit, for for every test setting weight；Comprehensive Assessment unit, for providing Comprehensive Assessment to evaluated Softswitch according to every test result and every corresponding weight of test；Display module, for interacting between the integrated estimation system and user, including：Configuration management element, for providing the user the configuration management to the integrated estimation system；Assessment result unit is shown, for showing the Comprehensive Assessment that the comprehensive analysis module is drawn.2nd, comprehensive evaluation system for soft-switch usability according to claim 1, characterized in that, the Comprehensive Assessment unit is used to calculate score of the evaluated Softswitch in testing protocol consistency, the score in performance test and comprehensive score by pre-defined algorithm according to every test result and every corresponding weight of test.3rd, comprehensive evaluation system for soft-switch usability according to claim 2, it is characterised in that the score in testing protocol consistency, the pre-defined algorithm of score and comprehensive score in performance test is as follows：Scon = ^ Sprotoi * WprototSproto - Wherein, the comprehensive score of evaluated Softswitch, ＆ are represented.Represent evaluated Softswitch Score in testing protocol consistency, S^ represents evaluated score of the Softswitch in performance test,W represents the weight of interface protocol uniformity test, represents the weight of performance test, the scoring that Sprac^ presentation protocols i is obtained in testing protocol consistency, Wpra^ presentation protocols i weight, bkRepresent that kth tests whether to pass through, be then value " 1 ", otherwise value " 0 ", WkRepresent the weight of kth test.4th, comprehensive evaluation system for soft-switch usability according to claim 3, it is characterised in that the score in performance test according to the evaluated Softswitch of call attempt number per second is preset with the Comprehensive Assessment unit.5th, the comprehensive evaluation system for soft-switch usability according to any one in claim 2,3,4, it is characterised in that the display assessment result unit is additionally operable to show the score of every test.6th, comprehensive evaluation system for soft-switch usability according to claim 1, it is characterised in that the performance test script in the test script module uses two-part test structure.7th, comprehensive evaluation system for soft-switch usability according to claim 1, it is characterised in that also including information preset in database, the database in the comprehensive analysis module includes：The test purpose of items test, severity level, a certain test not by when may cause the problem of, how improved suggestion, one or more information in points for attention in regular maintenance.8th, comprehensive evaluation system for soft-switch usability according to claim 7, it is characterized in that, also include display in the display module and assess suggestion unit, test purpose for showing unsanctioned test item according to every test result, severity level, the problem of may causing, how improved suggestion, one or more information in points for attention in regular maintenance.
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| PCT/CN2010/000805 WO2011153657A1 (en) | 2010-06-08 | 2010-06-08 | Comprehensive evaluation system for soft-switch usability |
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Citations (4)
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| CN1756200A (en) * | 2004-09-28 | 2006-04-05 | 中兴通讯股份有限公司 | Integrated tester and integrated testing method for media server |
| CN1809003A (en) * | 2006-02-08 | 2006-07-26 | 信息产业部电信传输研究所 | System and method of testing performance of soft switch device |
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| CN1988483A (en) * | 2006-12-22 | 2007-06-27 | 武汉市中光通信公司 | Soft exchange device test system based on net element simulation |
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2010
- 2010-06-08 WO PCT/CN2010/000805 patent/WO2011153657A1/en active Application Filing
- 2010-06-08 CN CN201080067273.8A patent/CN103098417B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1756200A (en) * | 2004-09-28 | 2006-04-05 | 中兴通讯股份有限公司 | Integrated tester and integrated testing method for media server |
| CN1809003A (en) * | 2006-02-08 | 2006-07-26 | 信息产业部电信传输研究所 | System and method of testing performance of soft switch device |
| CN1905497A (en) * | 2006-07-31 | 2007-01-31 | 西安西电捷通无线网络通信有限公司 | Method and apparatus for estimating terminal to terminal service grade protocol |
| CN1988483A (en) * | 2006-12-22 | 2007-06-27 | 武汉市中光通信公司 | Soft exchange device test system based on net element simulation |
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| WO2011153657A1 (en) | 2011-12-15 |
| CN103098417B (en) | 2016-04-06 |
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