VoLTE (Voice over LTE) voice quality monitoring method and system

Abstract

The embodiment of the invention provides a VoLTE (Voice over LTE) voice quality monitoring method and system. The method comprises the steps that monitoring points are respectively set at a first endS1U interface, a first end GM interface, a second S1U interface and a second end GM interface, periodic monitoring is carried out on RTP voice streams between a first end and a second end in a VoLTE voice call according to preset monitoring periods, and RTCP data packets of each monitoring point in each preset monitoring period are obtained; a packet lost rate, jitter and delay of each monitoringpoint in each preset monitoring period are obtained according to the RTCP data packets of each monitoring point in each preset monitoring period; and a problem network resulting in the low voice quality perception are determined in each preset monitoring period according to the packet lost rate, jitter and delay of each monitoring point in each preset monitoring period. The problem network elementresulting in the low voice quality perception can be determined and the method is simple and practicable and has high monitoring precision.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and more specifically, to a VoLTE voice quality monitoring method and system. Background technique [0002] The 4G network can provide high-speed data services, which has been recognized by the majority of 4G users. At the same time, the 4G network can also provide high-quality audio and video calls, namely VoLTE (Voice over LTE). The most direct experience that VoLTE technology brings to 4G users is shorter connection waiting time, and higher quality, more natural voice and video call effects. VoLTE is fundamentally different from 2G and 3G voice calls. VoLTE is an end-to-end voice solution based on all-IP conditions on the 4G network. Due to the adoption of high-resolution codec technology, VoLTE can improve the voice quality by about 40% compared with 2G and 3G voice calls. VoLTE brings users lower access delay (waiting time after dialing), which is 50% lower t...

AI Technical Summary

Problems solved by technology

In addition, call drops under 2G and 3G occur from time to time, but the drop rate of VoLTE is close to zero

[0003] However, there are many problems in VoLTE: occasional disconnection, intermittent call quality, word swallowing and other unsatisfactory phenomena, which greatly affect the user conversion rate of VoLTE. Perceptual monitoring method to further improve VoLTE voice quality

[0023] Although the E-modle model is suitable for platform-based statistical voice quality assessment of the entire network, and can reflect data network-specific problems such as delay, jitter, and packet loss, the premise of using the E-modle model is to assume that voice quality impairment factors are always physically attached. In order to comprehensively and objectively estimate the quality level of a network, the algorithm is extremely complicated, and only the MOS value can be calculated, and the delimitation and positioning of the problematic network elements cannot be performed.

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