Speech snap checking method under mobile nucleus network large traffic volume
A mobile core and test method technology, applied in the field of mobile communication, can solve the problems of huge financial and human resources, high cost, and inability to effectively simulate the real environment in real time, so as to save manpower and material resources and reduce test costs.
Inactive Publication Date: 2010-05-05
HAIAN INST OF HIGH TECH RES NANJING UNIV
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Problems solved by technology
[0006] Although the average subjective test is accurate and effective, the biggest problem with this subjective method is that in reality, it is very difficult and expensive for a group of people to listen to the speech and evaluate the quality of the speech. This ideal test effect is usually only available in You can only experience it when you open the experimental bureau
[0007] Under the existing mobile communication technology conditions, commercial testers judge the quality of the network based on the transmission and reception of voice reference signals, which cannot effectively simulate the real environment in real time to achieve on-site listening and real experience
Therefore, operators and developers usually have to open experimental bureaus and use the MOS method for actual verification, but it requires huge financial and manpower
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[0030] For in-depth understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0031] like figure 1 As shown, the large traffic test environment of the present invention includes a mobile core network, a PSTN (Public Switched Telephone Network, public switched telephone network), a real RNC (Radio Network Controller), an audio source terminal for For listening to the detection terminal of the voice signal of the audio source terminal, and a large traffic tester equipped with a number of analog terminals and analog RNCs, the PSTN and the real RNC can be selected either, or they can exist at the same time, and the audio source terminal is the mobile phone A, The detection terminal is mobile phone B.
[0032] In principle, the large traffic tester is an analog RNC, which is realized by a digital signal processor and a communication processor. A large number of analog term...
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A method for odd-testing voice quality of large telephone traffic at mobile core network includes calling relevant analog terminal in large telephone traffic test center by sound source terminal and detection terminal separately and holding on communication state, holding on communication state between said relevant analog terminals and broadcasting real voice signal from sound source terminal tothe other analog terminals at controller side of analog radio network as well as selecting a broadcasted analog terminal to carry out semi fixed chaining and unchaining to analog terminal connected with detection terminal repeatedly and randomly till add-test of voice quality is finalized.
Description
technical field [0001] The invention relates to the field of mobile communications, in particular to a method and a device for testing voice sampling under large traffic of a mobile core network. Background technique [0002] At present, various commercial high-traffic performance testers are widely used in the large-traffic test of the mobile core network. In principle, these commercial testers are all simulating RNC (Radio Network Controller, radio network controller) devices, which are used to simulate the control plane and user plane functions of the simulated RNC, provide the interface with the mobile core network, and realize the test function of large traffic. Among them, the user plane voice quality test is realized by the integrated standard algorithm, that is, the wave file (Wave File) generated by the computer is used, and the corresponding level and the degree of quality in the standard are calculated by comparing the changes before and after transmission through...
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IPC IPC(8): H04M3/22
Inventor 司远潮李罗保陆斌谢宝国
Owner HAIAN INST OF HIGH TECH RES NANJING UNIV