CN1885797A - Communication link testing method - Google Patents
Communication link testing method Download PDFInfo
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- CN1885797A CN1885797A CN 200510035579 CN200510035579A CN1885797A CN 1885797 A CN1885797 A CN 1885797A CN 200510035579 CN200510035579 CN 200510035579 CN 200510035579 A CN200510035579 A CN 200510035579A CN 1885797 A CN1885797 A CN 1885797A
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Abstract
The disclosed testing method for communication link comprises: 1. providing testing algorithm, transmission rule and statistic rule; 2. arranging transmitter and receiver on link ends, and a statistic entity on any end; 3. sending test command to test appointed items; 4. sending test data, checking and counting; 5. sending statistic data both from transmitter and receiver to the statistic entity; 6. analyzing and comparing data to obtain the link performance index.
Description
Technical field:
The present invention relates to communication link test in the communication system, relate in particular to a kind of performance of signaling link layer and the method for quality test.
Background technology:
The performance that often will use signaling link in communication system is done the design considerations of system architecture, existing link test method all is the transmission speed and the error rate of coming test link from physical layer basically, such as the pulse-code modulation in wire communication net PSTN system (Pulse Code Modulation) 2M is the transmission bandwidth of every signaling link of transmission medium is 64KBIT/ second, because the transmission of signaling encapsulates through multilayer, increased protocol header, so the performance that the data of physical layer really can reach when moving for system can not provide index accurately, be a reference limit of calculating and designing.
The method of existing measure link all is by increase the physical layer index that special-purpose measuring equipment comes measure link in system, it must spend more money and time purchase of equipment, start-up use equipment, and existing method of testing can only obtain the index of physical layer, the definite index of the link layer in the time of can not obtaining system's actual motion.
Summary of the invention:
The invention provides the method for testing of the communication link that a kind of network layer on link layer tests, accurate index on the signaling link network layer that system is in operation can be provided, various indexs under the burst flow also can be provided, and need not increase special-purpose testing equipment.
Method of testing of the present invention may further comprise the steps:
Step 1: the algorithm of agreement sequence of test data and transmission rule, agreement statistical rules;
Step 2: correspondence is provided with sending entity and receiving entity respectively at the two ends of tested link, establishes a statistics entity at arbitrary end of link;
Step 3: assign test instruction to sending entity, nominative testing project in the test instruction.
Step 4: sending entity sends test data and carries out verification and statistics according to test instruction, and receiving entity acceptance test data are also carried out verification and statistics;
Step 5: sending entity and receiving entity send to the statistics entity with the transmission statistics and the receiving and counting data of two entities of correspondence;
Step 6: statistics entity statistical rules is by appointment analyzed comparison to sending statistics and receiving and counting data, provides the performance quality index of link layer.
Described sending entity is one, is located at the arbitrary end at tested link, and receiving entity is located at the other end of tested link.
Described sending entity is two, is located at two sections of tested link respectively, and the two ends of tested link are equipped with the receiving entity corresponding to sending entity.
The test event of appointment is unidirectional transmission in the described test instruction, and the sending entity of controlling an end begins to send and stops to send.
The test event of appointment is two-way transmission in the described test instruction, and the sending entity at control two ends begins to send and stops to send.
After system's operate as normal, described receiving entity is in operation always, it is not controlled.
Described receiving entity and sending entity are to unite two into one.
Described receiving entity and sending entity separate.
The method of the invention, compare with existing link test technology, network layer on link layer is carried out the test of communication link, index on the signaling link network layer that system is in operation can be provided, various indexs under the burst flow also can be provided, and therefore the index that obtains is more accurate than physical layer index; And need not increase special-purpose testing equipment, can save a large amount of money and time.If the two ends at link all are provided with sending entity, can realize two-way transmission, two-way test, then can also overcome the problem that can only test an independent direction in the prior art.Use the method agreement test order of software, independently the receipts of test link or the performance quality sent out can access performance on some directions and qualitative data under any flow, just can provide full and accurate data for system design improves assess.
Description of drawings
Accompanying drawing 1 is entity function and the graph of a relation that both link ends participates in test and statistical test result....
Accompanying drawing 2 is flow charts of a concrete implementation method example statistical test result of the present invention.
Embodiment:
In conjunction with the accompanying drawings 1,2 pairs of one embodiment of the present of invention of accompanying drawing once specify:
1, the two ends of link are respectively A end, B end, set up the sending entity and the receiving entity of network layer respectively, are made as sending entity AS, receiving entity AR respectively, sending entity BS, receiving entity BR.2, the generation rule of the side a and b of link agreement sequence of test data and transmission strategy.The algorithm of sequence of test data must be to produce value rather than the random number that can expect.3, AS entity and BS entity have 3 function: a, algorithm by appointment to produce the transmission data sequence; B, transmission rule by appointment independently send data to the opposite end; C, send the statistics of data.4, receiving entity AR and BR are responsible for receiving data, and by appointment rule checks that the data order is with content and add up.Receiving entity and sending entity can be also can uniting two into one of separating.The sending entity of local terminal and the receiving entity of opposite end are corresponding mutually entities.That is: the corresponding BR of AS, BS corresponding A R.5, an end of link is set up the entity A T of a statistical analysis, and this entity compares analysis with the transmission statistics and the receiving and counting data of two entities of correspondence, provides the performance quality index of link layer.The rule of statistics is that both sides arrange.
Method of testing:
The control that sends and receive:
After system's operate as normal, receiving entity is in operation always, it is not controlled.
Can begin the control that sends or stop to send to the local terminal sending entity at A end or B end, also can begin the control that sends and stop to send the opposite end sending entity.
Test event can nominative testing A be held the unidirectional transmission of B end, also can be the A two-way transmission of holding the B end etc.
The carrying out of test:
After the test beginning, transmitting terminal and receiving terminal all carry out the verification and the statistics of data, and after a period of time was carried out in test, transmission stopped.The statistics entity carries out statistical analysis with the statistics statistical rules by appointment of transmitting terminal and receiving terminal, just can learn the performance and the qualitative data of link layer accurately.
The algorithmic rule of the test data among the embodiment and the control law of test are as follows:
Test the performance quality of certain signaling link in a system:
The algorithmic rule of A and B agreement test data is as follows:
One has 240 bags, is respectively:
A
1，A
2，...，A
i，...A
240
Length of data package is a circulation change, from 1 to 240 byte, i.e. i ∈ [1,240];
The sequence of each packet is
A
i＝{a
1，a
2，a
3，...a
n｝
A wherein
1The length (being element number) of bag and the sequence number of bag have been indicated
a
1＝1，
a
2＝2，
...
a
n＝a
1-1
Example:
A
10＝{10，1，2，3，...9｝
10 expression bag sequence numbers represent that also packet length is 10, and content is exactly 1-9;
The transmission rule of A and B agreement test data is as follows:
Packet of the each transmission of A end timed sending, the time interval is 10 milliseconds, the content of packet is a circulation change, is A
1-A
240B end adopts the mode of periodic instantaneous burst, and per 200 milliseconds are carried out a secondary data and send, and the number of the packet of each transmission is 30, packet content also be circulation change also be A
1-A
240
The control law of A and the test of B agreement is:
A end sending entity AS control A end begins to send; B end sending entity BS control B end begins to send;
The A termination is received entity A R, B termination receipts entity B R is in always and can receives data mode;
The statistical method of A and the test of B agreement is:
Transmitting terminal: send a bag, the sum of transmission adds one, the bag sequence number that record sends;
Receiving terminal: receive a bag, receive sum and add one, the bag sequence number that this bag sequence number received and expectation are received compares, if it is unequal, think bag sequence number mistake, the sequence number that the sequence number that expectation is received is changed to this reception add a pair of 240 get surplus, if sequence number is correct, algorithm comparing data packet length by appointment, if size error, the statistics numeration adds one, if length correctly continues the comparison content, find meaningful mistake, in statistics, count.Process as shown in Figure 2.
A end sending entity AS control A end stops to send; B end sending entity BS control B end stops to send, and this moment, test stopped.
The sending entity of side a and b and receiving entity are all incited somebody to action the statistics entity A T that separately statistics sends to the A end, and AT gives the user according to the analysis rule computation bandwidth and the error rate with statistics and analysis result information.
Claims (10)
1, a kind of method of testing of communication link may further comprise the steps:
Step 1: the algorithm of agreement sequence of test data and transmission rule, agreement statistical rules;
Step 2: correspondence is provided with sending entity and receiving entity respectively at the two ends of tested link, establishes a statistics entity at arbitrary end of link;
Step 3: assign test instruction to sending entity, nominative testing project in the test instruction;
Step 4: sending entity sends test data and carries out verification and statistics according to test instruction, and receiving entity acceptance test data are also carried out verification and statistics;
Step 5: sending entity and receiving entity send to the statistics entity with the transmission statistics and the receiving and counting data of two entities of correspondence;
Step 6: statistics entity statistical rules is by appointment analyzed comparison to sending statistics and receiving and counting data, provides the performance quality index of link layer.
2, method of testing according to claim 1 is characterized in that: described sending entity is one, is located at the arbitrary end at tested link, and receiving entity is located at the other end of tested link.
3, method of testing according to claim 1 is characterized in that: described sending entity is two, is located at two sections of tested link respectively, and the two ends of tested link are equipped with the receiving entity corresponding to sending entity.
4, method of testing according to claim 3 is characterized in that: the test event of appointment is unidirectional transmission in the test instruction, and the sending entity of controlling an end begins to send and stops to send.
5, method of testing according to claim 3 is characterized in that: the test event of appointment is two-way transmission in the test instruction, and the sending entity at control two ends begins to send and stops to send.
6, according to claim 1 or 2 or 3 or 4 or 5 described method of testings, it is characterized in that: after system's operate as normal, receiving entity is in operation always, it is not controlled.
7, according to claim 3 or 4 or 5 described method of testings, it is characterized in that: receiving entity and sending entity separate.
8, according to claim 3 or 4 or 5 described method of testings, it is characterized in that: receiving entity and sending entity unite two into one.
9, method of testing according to claim 6 is characterized in that: receiving entity and sending entity separate.
10, method of testing according to claim 6 is characterized in that: receiving entity and sending entity unite two into one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510035579 CN1885797A (en) | 2005-06-24 | 2005-06-24 | Communication link testing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510035579 CN1885797A (en) | 2005-06-24 | 2005-06-24 | Communication link testing method |
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| Publication Number | Publication Date |
|---|---|
| CN1885797A true CN1885797A (en) | 2006-12-27 |
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|---|---|---|---|
| CN 200510035579 Pending CN1885797A (en) | 2005-06-24 | 2005-06-24 | Communication link testing method |
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|---|---|
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009062411A1 (en) * | 2007-11-14 | 2009-05-22 | Huawei Technologies Co., Ltd. | Method and device for implementing test |
| CN101599870B (en) * | 2009-06-30 | 2011-06-15 | 西北工业大学 | Network link performance measurement method |
| CN102595438A (en) * | 2011-01-14 | 2012-07-18 | 上海贝尔股份有限公司 | Method and equipment for testing physical layer of wireless communication system |
| CN101227690B (en) * | 2008-02-04 | 2013-01-16 | 中兴通讯股份有限公司 | System and method for testing GSM system accepting/receiving module uplink and downlink channel quality |
-
2005
- 2005-06-24 CN CN 200510035579 patent/CN1885797A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009062411A1 (en) * | 2007-11-14 | 2009-05-22 | Huawei Technologies Co., Ltd. | Method and device for implementing test |
| US8493876B2 (en) | 2007-11-14 | 2013-07-23 | Huawei Technologies Co., Ltd. | Method and apparatus for realizing a test |
| CN101227690B (en) * | 2008-02-04 | 2013-01-16 | 中兴通讯股份有限公司 | System and method for testing GSM system accepting/receiving module uplink and downlink channel quality |
| CN101599870B (en) * | 2009-06-30 | 2011-06-15 | 西北工业大学 | Network link performance measurement method |
| CN102595438A (en) * | 2011-01-14 | 2012-07-18 | 上海贝尔股份有限公司 | Method and equipment for testing physical layer of wireless communication system |
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