Band-width control method, apparatus, terminal and system based on video conference

A bandwidth control and video conferencing technology, which is applied in the direction of video conferencing systems, transmission systems, two-way working systems, etc., can solve the problems of circuit switching network and packet switching network packet loss, etc., to solve packet loss, improve usability, realize The effect of steady deceleration

Inactive Publication Date: 2009-07-22
HUAWEI DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to overcome the defects in the prior art, the embodiment of the present invention proposes a video conferencing-based bandwidth...

Method used

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  • Band-width control method, apparatus, terminal and system based on video conference
  • Band-width control method, apparatus, terminal and system based on video conference
  • Band-width control method, apparatus, terminal and system based on video conference

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Embodiment 1

[0048] Such as figure 2As shown, the video conference-based bandwidth control method in the embodiment of the present invention includes the following steps: the conference control device establishes a call connection with a circuit network terminal and a packet-switched network terminal respectively (step S201); the conference control device determines that the packet-switched If the network bandwidth does not meet the video data transmission requirements of the packet-switched network, the circuit network terminal is notified to perform code flow control to reduce the video data transmission speed of the circuit network (step S202).

[0049] In the embodiment of the present invention, the MCU is used as the conference control device as an example, but the conference control device in the embodiment of the present invention includes but is not limited to the MCU, and any conference control device with the same or similar functions as the MCU can be used to replace the MCU. C...

Embodiment 2

[0052] Such as image 3 As shown, the bandwidth control method based on video conference in the embodiment of the present invention includes the following steps: the circuit network terminal and the packet switching network terminal respond to the call connection of the conference control device, and respectively establish a call connection with the conference control device (step S301) ; The circuit network terminal receives the code stream control notification sent by the conference control device (step S302); the circuit network terminal performs code stream control according to the code stream control notification to reduce the video data transmission speed (step S303).

[0053] In the embodiment of the present invention, an MCU is used as an example of the conference control device, but the conference control device in the embodiment of the present invention includes but is not limited to the MCU, and any conference control device with the same or similar functions as the ...

Embodiment 3

[0056] An embodiment of the present invention provides a video conference-based bandwidth control method. In the embodiment of the present invention, the MCU is used as the conference control device as an example, but the conference control device in the embodiment of the present invention includes but is not limited to the MCU, and any conference control device with the same or similar functions as the MCU can be used to replace the MCU. Circuit network terminals include but not limited to H.320 terminals, and may also be: ISDN terminals, PSTN terminals, packet switching network terminals include but not limited to H.323 terminals, and may also be SIP terminals.

[0057] On the basis of the second embodiment, after the circuit network terminal receives the stream control notification sent by the conference control device, the stream control of the circuit network terminal is realized by filling invalid video data frames.

[0058] The code stream of the H.320 terminal before e...

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Abstract

The embodiment of the invention provides a bandwidth controlling method, device, terminal and system based on videoconference; the method comprises the steps that: the conference control apparatus respectively establishes call connection with the circuit network terminal and packet switched network terminal; the conference control apparatus ensures that the packet switched network bandwidth does not satisfy the packet switched network video data transmission request and notifies the circuit network terminal to execute code stream controlling, thereby reducing the circuit network video data transmission speed. The technical proposal provided by the embodiment of the invention, when judging that the packet switched network bandwidth does not satisfy the packet switched network video data transmission request, notifies the circuit network terminal to execute code stream controlling, which solves the problem of losing packet in videoconference mixed by circuit network terminal and packet switched network, and stably reduces the speed in the videoconference mixed by circuit network terminal and packet switched network and strengthens the network suitability and improves the ease of use of mixed networking.

Description

technical field [0001] The present invention relates to video conferencing technology, in particular to bandwidth control technology in video conferencing, specifically a video conferencing-based bandwidth control method, device, terminal and system. Background technique [0002] The video conferencing system can be applied to a circuit switching network or a packet switching network, but there are many problems when the above two networks are used in combination, such as packet loss and bandwidth cannot be guaranteed. The general standard for video conferencing systems based on circuit networks is H.320, and the H.320 standard includes a series of standards to serve it, such as H.221 / H.242 / H.239, etc.; the general standard for video conferencing systems based on packet switching networks It is H.323, and the H.323 standard includes a series of standards to serve it, such as H.245 / Q.931 / H.239 and so on. [0003] For mixed applications of H.320 and H.323, the system needs to...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L1/00H04N7/15H04L47/76
Inventor 徐福刚周丰
Owner HUAWEI DEVICE CO LTD
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