Voice quality enhancement method applied to satellite communication network

Abstract

The invention discloses a voice quality enhancement method applied to a satellite communication network. An automatic testing system consists of a monitoring server deployed at a master station terminal, a VQE (Voice Quality Enhancement) module and a testing terminal deployed at each small station terminal based on an interactive satellite communication network. The quality monitoring of the master station on voice calls of each small station is implemented through the satellite network entire-network deployment-based automatic testing system. The monitoring server calculates the priority of calls of the small stations by a VQE allocation algorithm and defines a high-priority small station as a station with low voice call quality; the system automatically opens a VQE channel for the high-priority small station and implements voice call quality enhancement of the small station. The voice quality enhancement method has the advantages of providing voice quality enhancement for a small station user with poor channel environment and poor call environment and considering the equity of a VIP small station user.

Description

technical field [0001] The invention relates to the technical field of satellite communication, in particular to a voice quality improvement method suitable for a satellite communication network, so as to realize the improvement of voice quality. Background technique [0002] The satellite communication network consists of master stations, small stations and satellites. As a supplement and extension of the ground communication system, it is widely used in satellite interactive TV broadcasting, distance education, IP broadband applications and other fields. [0003] The satellite communication network mainly relies on microwave communication, and the communication between small station users needs to go through the process of small station-satellite-main station-satellite-small station. Such a transmission path determines that the call quality will be affected by noise, distortion, jitter, echo, etc. Serious effects of many problems. With the widening range of satellite comm...

AI Technical Summary

Problems solved by technology

In the current satellite network, the discovery of voice quality problems mainly relies on artificial perception, relying on users to evaluate the sound quality heard during calls. This method is costly, time-consuming, and there is no unified and credible measurement standard It was only after receiving complaints from small station users that there was a problem with the voice quality in the network, resulting in poor user experience and being unable to actively defend against voice quality problems

[0004] VQE (Voice Quality Enhancement) is a kind of DSP equipment. A VQE DSP chip can provide voice quality enhancement for 256 calls at the same time. Currently, three methods are used to allocate VQE resources in the terrestrial telecommunications network. The first method is to provide all user terminals All allocate VQE resources. Since VQE resources are limited, a VQE device can only provide a limited voice quality improvement channel. If a channel is configured for each user terminal, a large number of VQE devices will be required, which will greatly increase the cost of network construction and This is a serious waste of resources, which is meaningless for users with better voice call quality; the second method is to configure VQE resources for VIP customers. This method only allocates VQE voice enhancement channels for calls initiated by VIP customers, while other customers No matter how bad the communication environment is, the voice quality cannot be improved, and the overall network call quality is poor

The third method is to allocate VQE resources by region. This method judges whether to configure VQE resources for all voice calls in this region according to the evaluation level of voice call quality in a certain region. This method does not consider the special rights and interests of VIP customers and user calls. The busyness may cause a waste of VQE resources

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