Multimedia session service quality management method under multiple radio network integrated environment

Abstract

The present invention relates to a multi-media conversation service quality management method in a variety of wireless network convergence environments, including: user II is conducting a one-way multimedia conversation with user I, and when user I's terminal decides to switch, perform the following steps: A1) user I Judging the target network type to be switched into; A2) user I sends a switching notification signaling to user II, which records the target network type in the switching notification signaling; A3) user II receives the user I sending in step A2) The switching notification signaling of the signaling, and then adjust the local audio / video encoding rate according to the target network type in the signaling; A4) after step A3) ends, the user II sends back a switching confirmation signaling to the user I; A5) the user I is in After step A2), wait for the handover confirmation signal from user II, and perform handover immediately when receiving the handover confirmation signal. The method of the invention can effectively improve the service quality of multimedia communication.

Description

technical field [0001] The present invention relates to the technical field of multimedia communication, in particular to a multimedia session quality of service (Quality of Service, QoS) management method in a wireless network convergence environment composed of multiple access technologies. Background technique [0002] With the continuous advancement of Internet technology, based on the classic IP network, multimedia communication represented by digital TV, Internet telephony, video conferencing, and distance teaching is experiencing rapid development. Especially in today's ever-changing mobile communication and multimedia technologies, various wireless network access technologies (such as WLAN, GPRS and WCDMA, etc.) and various audio and video coding schemes provide users with a great choice space, enabling users to truly realize Multimedia communication anytime, anywhere. [0003] Most of the current mainstream mobile Internet technologies are based on the integration ...

AI Technical Summary

Problems solved by technology

If the audio and video encoding rate cannot be reduced in time when the network bandwidth is reduced, it will lead to an increase in the packet loss rate of the communication receiver, voice pauses, "mosaics" or even stagnation of the video screen, and other adverse effects

On the other hand, if the audio and video data rate cannot be increased in time when the network bandwidth increases, the bandwidth cannot be fully utilized to improve the quality of multimedia communication.

[0005] Another feature of wireless network is that it is easily interfered by external factors such as buildings and electronic equipment, and the bandwidth fluctuates greatly, and the bit error rate is high.

In the case of no handover, if the audio and video data rate remains unchanged at this time, the quality of multimedia communication services may also decrease due to continuous changes in bandwidth.

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