CN201515375U - Bit error rate tester and mobile multimedia broadcasting terminal - Google Patents
Bit error rate tester and mobile multimedia broadcasting terminal Download PDFInfo
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- CN201515375U CN201515375U CN2008201247181U CN200820124718U CN201515375U CN 201515375 U CN201515375 U CN 201515375U CN 2008201247181 U CN2008201247181 U CN 2008201247181U CN 200820124718 U CN200820124718 U CN 200820124718U CN 201515375 U CN201515375 U CN 201515375U
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Abstract
The utility model discloses a bit error rate tester and a mobile multimedia broadcasting terminal. The device comprises an interface module, a memory module and a comparison module, wherein the interface module is used for receiving a data source from a transmitting terminal according to the testing parameter of the mobile multimedia broadcasting terminal; the memory module is used for memorizing a PN sequence prearranged in the mobile multimedia broadcasting terminal, as well as the testing parameter; and the comparison module is used for comparing the data source from the interface module with the PN sequence in the memory module so as to obtain BER. The mobile multimedia broadcasting terminal comprising the device receives the data source according to the preconfigured testing parameter, and conducts comparison with a self preset PN sequence so as to obtain the BER. By the technical scheme, the BER testing is realized in the mobile multimedia broadcasting terminal; and when in testing, extra special connection and BER statistics equipment do not need to be added, so that the BER testing becomes simpler, and moreover, the mobile multimedia broadcasting terminal realizes a full-automatic testing process.
Description
Technical field
The utility model relates to China mobile multi-media broadcasting technology, refers to a kind of bit error rate testing apparatus and mobile multi-media broadcast terminal especially.
Background technology
China Mobile multimedia broadcasting technology alliance abbreviates China Mobile multimedia broadcasting (CMMB as, China Mobile Multimedia Broadcasting), it is intended to develop multimedia reception technique and the terminal that is fit to move application as the technical system of serving China Mobile multimedia broadcasting.
In order to guarantee the performance of multimedia receiver terminal, need carry out performance test to it.In the performance test of mobile multi-media broadcast terminal, need to add up the bit error rate (BER) that receives data.Because mobile multimedia broadcast system is an one-way system, therefore, can not add up BER by system's inloop.
Traditional mobile multi-media broadcast terminal BER statistical method roughly is, data-interface is set on mobile multi-media broadcast terminal, by this data-interface, read the data that it receives from mobile multi-media broadcast terminal, and export to special-purpose statistics equipment of BER such as bit error analyzing instrument etc., by the special-purpose statistics equipment of BER by the mobile multi-media broadcast terminal of relatively self storing the in advance data that should accept and its data that receive of reading from mobile multi-media broadcast terminal, add up the BER of this mobile multi-media broadcast terminal, specifically how to add up and belong to those skilled in the art's conventional techniques means, repeat no more here.What emphasize here is, need be by on mobile multi-media broadcast terminal, setting up data-interface, and need the special-purpose statistics equipment of outside BER, just can finish the test of mobile multi-media broadcast terminal BER.There is following drawback in the method for present this test mobile multi-media broadcast terminal BER:
At first, the design cost and the difficulty of mobile multi-media broadcast terminal have been increased; Secondly, need extra special connection and the BER statistics equipment of increasing during test.Undoubtedly, the method for testing of present mobile multi-media broadcast terminal BER makes the test to the BER of mobile multi-media broadcast terminal become complicated to come, and is difficult to realize full automatic test process.
The utility model content
In view of this, main purpose of the present utility model is to provide a kind of bit error rate testing apparatus of mobile multi-media broadcast terminal, test that can simple realization mobile multi-media broadcast terminal BER.
Another purpose of the present utility model is to provide a kind of mobile multi-media broadcast terminal, can realize the test of mobile multi-media broadcast terminal BER simply, automatically.
For achieving the above object, the technical solution of the utility model specifically is achieved in that
A kind of bit error rate testing apparatus, this device comprises interface module, memory module and comparison module, wherein,
Interface module is used for receiving data source from transmitting terminal according to the test parameter of mobile multi-media broadcast terminal;
Memory module is used for storing the PN sequence that sets in advance at mobile multi-media broadcast terminal, and test parameter;
Comparison module is used for comparison from the data source of interface module and the PN sequence of memory module, to obtain BER.
A kind of mobile multi-media broadcast terminal comprises interface module, memory module and comparison module at least, wherein,
Interface module is used for receiving data source from transmitting terminal according to the test parameter of mobile multi-media broadcast terminal;
Memory module is used for storing the PN sequence that sets in advance at mobile multi-media broadcast terminal, and test parameter;
Comparison module is used for comparison from the data source of interface module and the PN sequence of memory module, to obtain BER.
Described mobile multi-media broadcast terminal also comprises input module, is used to provide man-machine interface, PN sequence and the described memory module of test parameter that input sets in advance.
Described mobile multi-media broadcast terminal also comprises output module, is used to receive the BER that obtains from described comparison module, and shows the BER test result.
As seen from the above technical solution, the utility model device comprises interface module, memory module and comparison module, and wherein, interface module is used for receiving data source from transmitting terminal according to the test parameter of mobile multi-media broadcast terminal; Memory module is used for storing the PN sequence that sets in advance at mobile multi-media broadcast terminal, and test parameter; Comparison module is used for comparison from the data source of interface module and the PN sequence of memory module, to obtain BER.The mobile multi-media broadcast terminal that includes apparatus of the present invention receives data source according to pre-configured test parameter, and the PN sequence that sets in advance with self compares, to obtain BER.The utility model scheme realizes the test of BER in mobile multi-media broadcast terminal, do not need extra special connection and the BER statistics equipment of increasing during test, make the test of BER become simply, and in mobile multi-media broadcast terminal, realized full automatic test process.
Description of drawings
Fig. 1 is the flow chart that the utility model is realized the method for mobile multi-media broadcast terminal BER test;
Fig. 2 is the composition structural representation that the utility model is realized the device of mobile multi-media broadcast terminal BER test;
Fig. 3 is the composition structural representation of mobile multi-media broadcast terminal of the present invention.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.
Fig. 1 is the flow chart that the utility model is realized the method for mobile multi-media broadcast terminal BER test, and as shown in the figure, the utility model method may further comprise the steps:
Step 100: the test parameter of pre-configured mobile multi-media broadcast terminal.
The human-computer interaction interface that can set in advance by mobile multi-media broadcast terminal, the configuration testing parameter, such as frequency, modulating mode, coding, frame number (or timeslot number), frame length etc., belong to technology as well known to those skilled in the art about the implication of these parameters, be not described in detail here.
Step 101: mobile multi-media broadcast terminal receives data source according to this test parameter, and the pseudorandom that sets in advance with self (PN) sequence compares, to obtain BER.
In this step, be according to the test parameter emission of mobile multi-media broadcast terminal from the data source of transmitting terminal.Data source can be pre-specified PN sequence, and this PN sequence also can be identical with the PN sequence that mobile multi-media broadcast terminal self sets in advance.
When data source is the PN sequence, for the default PN sequence that guarantees data source and mobile multi-media broadcast terminal synchronously, by the test parameter that sets, can be so that the initial bits of data source PN sequence be for sending the initial bits of Frame, when the capacity of transmit frame during, the tail bits of data source PN sequence is clipped to satisfy launch requirements less than default PN sequence length; When the capacity of transmit frame during, repeat to send this data source PN sequence greater than the length of default PN sequence.
For mobile multi-media broadcast terminal, to be processing unit and self preset the PN sequence and compare with each frame emission, obtain whether error bit can occur by existing method, and misregistration bit number and the total bit number that receives, utilize existing method to calculate the BER value of mobile multi-media broadcast terminal.
Fig. 2 is the composition structural representation that the utility model is realized the device of mobile multi-media broadcast terminal BER test, and as shown in Figure 2, the utility model device comprises interface module, memory module and comparison module, wherein,
Interface module is used for receiving data source from transmitting terminal according to the test parameter of mobile multi-media broadcast terminal.
Memory module is used for storing the PN sequence that sets in advance at mobile multi-media broadcast terminal, and test parameter.Test parameter can dispose by the human-computer interaction interface that mobile multi-media broadcast terminal sets in advance, and comprises frequency, modulating mode, coding, frame number (or timeslot number), frame length etc.
Comparison module is used for comparison from the data source of interface module and the PN sequence of memory module, to obtain BER.
Device shown in Figure 2 can be arranged in the mobile multi-media broadcast terminal, do not need extra special connection and the BER statistics equipment of increasing when making test, make the test of BER become simply, and in mobile multi-media broadcast terminal, realized full automatic test process.Fig. 3 is the composition structural representation of mobile multi-media broadcast terminal of the present invention, and as shown in Figure 3, mobile multi-media broadcast terminal of the present invention can also comprise input module, is used to provide man-machine interface, PN sequence and test parameter that input sets in advance.Test parameter can comprise frequency, modulating mode, coding, frame number (or timeslot number), frame length etc., and the PN sequence and the test parameter of input is stored in the memory module.
Mobile multi-media broadcast terminal of the present invention can also comprise output module, be used to receive the BER that obtains from comparison module, and demonstration BER test result, such as can directly showing the BER value, also can show acceptance or rejection according to the BER value, specific implementation belongs to those skilled in the art's conventional techniques means, no longer describes in detail here.
The above is preferred embodiment of the present utility model only, is not to be used to limit protection range of the present utility model.All within spirit of the present utility model and principle, any modification of being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (4)
1. a bit error rate testing apparatus is characterized in that, this device comprises interface module, memory module and comparison module, wherein,
Interface module is used for receiving data source from transmitting terminal according to the test parameter of mobile multi-media broadcast terminal;
Memory module is used for storing the PN sequence that sets in advance at mobile multi-media broadcast terminal, and test parameter;
Comparison module is used for comparison from the data source of interface module and the PN sequence of memory module, to obtain BER.
2. a mobile multi-media broadcast terminal is characterized in that, comprises interface module, memory module and comparison module at least, wherein,
Interface module is used for receiving data source from transmitting terminal according to the test parameter of mobile multi-media broadcast terminal;
Memory module is used for storing the PN sequence that sets in advance at mobile multi-media broadcast terminal, and test parameter;
Comparison module is used for comparison from the data source of interface module and the PN sequence of memory module, to obtain BER.
3. mobile multi-media broadcast terminal according to claim 2 is characterized in that described mobile multi-media broadcast terminal also comprises input module, is used to provide man-machine interface, and PN sequence that input sets in advance and test parameter are to described memory module.
4. mobile multi-media broadcast terminal according to claim 2 is characterized in that described mobile multi-media broadcast terminal also comprises output module, is used to receive the BER that obtains from described comparison module, and shows the BER test result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008201247181U CN201515375U (en) | 2008-12-12 | 2008-12-12 | Bit error rate tester and mobile multimedia broadcasting terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008201247181U CN201515375U (en) | 2008-12-12 | 2008-12-12 | Bit error rate tester and mobile multimedia broadcasting terminal |
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| Publication Number | Publication Date |
|---|---|
| CN201515375U true CN201515375U (en) | 2010-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008201247181U Expired - Fee Related CN201515375U (en) | 2008-12-12 | 2008-12-12 | Bit error rate tester and mobile multimedia broadcasting terminal |
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| CN (1) | CN201515375U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106303517A (en) * | 2016-08-16 | 2017-01-04 | 合肥东上多媒体科技有限公司 | Digital multimedia broadcasting terminal |
| CN112805950A (en) * | 2021-01-08 | 2021-05-14 | 华为技术有限公司 | Bit error rate testing method and device |
-
2008
- 2008-12-12 CN CN2008201247181U patent/CN201515375U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106303517A (en) * | 2016-08-16 | 2017-01-04 | 合肥东上多媒体科技有限公司 | Digital multimedia broadcasting terminal |
| CN106303517B (en) * | 2016-08-16 | 2019-02-22 | 江苏凌渡软件科技有限公司 | Digital multimedia broadcasting terminal |
| CN112805950A (en) * | 2021-01-08 | 2021-05-14 | 华为技术有限公司 | Bit error rate testing method and device |
| CN112805950B (en) * | 2021-01-08 | 2022-03-08 | 华为技术有限公司 | Bit error rate testing method and device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150928 Address after: 100080, Beijing, Zhongguancun Haidian District Street 11, 100 million world wealth center, block A, 12 Patentee after: BEIJING BOXIN SHITONG TECHNOLOGY CO., LTD. Address before: 100084, No. 803, building A, Tsinghua Science and Technology Park, No. 8, Zhongguancun East Road, building 1, Haidian District, Beijing Patentee before: Beijing Chuangyi Vision Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20171212 |