CN102256101B - A kind of conversion method of media capability in video conference, system and application server - Google Patents
A kind of conversion method of media capability in video conference, system and application server Download PDFInfo
- Publication number
- CN102256101B CN102256101B CN201110210486.8A CN201110210486A CN102256101B CN 102256101 B CN102256101 B CN 102256101B CN 201110210486 A CN201110210486 A CN 201110210486A CN 102256101 B CN102256101 B CN 102256101B
- Authority
- CN
- China
- Prior art keywords
- media
- participant terminal
- terminal
- network condition
- media capability
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a kind of conversion method of media capability in video conference, system and application server, including：Application server determines whether the network condition of participant terminal changes, and the current network conditions and media capability collection of the participant terminal that network condition is changed are notified to multipoint control unit.The present invention is in multipart video-meeting, whether the network condition terminal for determining participant terminal by application server changes, so as to realize according to the current network condition of participant terminal and media capability collection adjustment current media ability, being smoothed out for video conference can be ensured effectively and in real time, while farthest ensureing the experience of user.
Description
Technical field
The present invention relates to video conferencing technology field, more particularly to a kind of conversion method of media capability in video conference,
System and application server.
Background technology
The video traffic in 3G (3rd-Generation, 3rd generation mobile communication technology) epoch has many kinds, video conference
It is one kind therein.Due to the original such as ability of network where access way, bearing mode, terminal type and terminal in video conference
Cause, causes the media transmission in primary video meeting in each node, all directions, media formats etc. to require far from each other.
Moreover, during whole video conference, existing due to the feelings that the network condition that participant terminal occurs in a variety of causes changes
Condition.
As shown in figure 1, to a 3G video conference, within certain a period of time, terminal A and VIG (Video direct-connected therewith
Interworking Gateway, Video Interworking Gateway) between network condition it is excellent (with roomy and network stabilization), terminal A
Sound, video, Streaming Media coding/decoding capability is general and the terminal A expressive forces of itself are general, supports limited sound, video, stream matchmaker
Physique formula, such as maximum can only support CIF (Common Intermediate Format, a kind of standard image format, resolution ratio
For：352*288 pixels) video.
Network condition between terminal B and VIG direct-connected therewith is general (bandwidth is general and there is network congestion situation), but
Terminal B sound, video, Streaming Media coding/decoding capability are powerful and expressive force of terminal B itself is excellent, support a variety of sounds, video, stream
Media formats, as maximum can support 16CIF (16-times Common Intermediate Format, a kind of standardized images
Form, resolution ratio is：1408*1152 pixels) video.
Compared with the first two terminal, network condition between terminal C and VIG direct-connected therewith it is worst (network bandwidth it is small and
Fluctuation is big), and terminal C sound, video, Streaming Media coding/decoding capability be not strong and the terminal C expressive forces of itself are general, only supports non-
Normal limited sound, video, stream media format are such as maximum only to support QCIF (Quarter Common Intermediate
Format, a kind of standard image format, resolution ratio is：176*144 pixels) video.
First assume the network between the direct-connected VIG of each terminal and MCU (Multi Control Unit, multipoint control unit)
Situation is excellent.Because the initiator of video conference can be any terminal, first assume that terminal A is initiator here, terminal B and
C add meeting, before meeting starts, each terminal need to by the sound of itself, video, Streaming Media coding/decoding capability collection and with it is respective
Network condition between VIG reports MCU.Network condition and ability information that MCU is accessed according to terminal, are that each terminal is calculated
Go out acceptable complete media capability collection, and complete media capability collection is broadcast to terminal corresponding VIG, each VIG at this
Ground preserves the complete media capability collection of each self terminal.For each terminal, each period of meeting (including when initial
Section) there is a current media ability, each VIG is exactly to carry out audio frequency and video to direct-connected terminal by this current media ability to answer
With/the operation such as demultiplexing, code conversion, the media that the media information of terminal is reported into MCU and forwards MCU to come to terminal
Information.
During meeting progress, due to the influence of various external conditions, participant terminal (such as mobile terminal) and straight therewith
Network condition between VIG even can change, and such as network condition is deteriorated, and will cause preventing network jitter using some
Smoothing technique is unable to maintain that the original Video Frequency Conference Quality of terminal (the current media ability of terminal declines), or becomes in network condition
When good, in the range of terminal capabilities set support, Video Frequency Conference Quality lifting can be arrived higher level (the current matchmaker of terminal
Ability of immigrants rises), and in current video conference, it is impossible to when network condition is deteriorated, maintain an acceptable media
Quality, in network conditions turn good, it is impossible to lift existing media quality.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of conversion method of media capability in video conference, system and should
With server, media energy can be carried out application server triggering to participant terminal when the network condition of participant terminal changes
The conversion of power.
In order to solve the above technical problems, a kind of conversion method of media capability in video conference of the present invention, including：
Application server determines whether the network condition of participant terminal changes, the participant that network condition is changed
The current network conditions and media capability collection of terminal are notified to multipoint control unit.
Further, the application server determine the network condition of participant terminal whether change including：
The application server is opened in the number of times that the network condition that the participant terminal is reported changes more than timer
It is that the participant terminal starts network condition supervision timer during dynamic threshold value；
The application server is judged in the participant terminal in the timing of the network condition supervision timer
Whether the number of times that the network condition of report changes is more than monitoring threshold, if it is greater, then determining the network of the participant terminal
Situation changes.
Further, in addition to：
The multipoint control unit determines the network condition hair according to the current network conditions and media capability collection
Complete media capability collection of the participant terminal for changing under current network conditions, the complete media capability collection is notified to institute
State the corresponding Video Interworking Gateway of participant terminal that network condition changes；
The Video Interworking Gateway concentrates the current media ability that selection updates from the complete media capability, and with it is described
The participant terminal that network condition changes carries out media capability switching.
Further, the Video Interworking Gateway carries out media capability with the participant terminal that the network condition changes
Switching includes：
The participant terminal is stopped to Video Interworking Gateway transmission up on up media channel, described
Video Interworking Gateway is stopped on downstream media passage to participant terminal generation downlink media stream；
The participant terminal applies for up media channel and downstream media passage again to the Video Interworking Gateway；
Up media channel that the Video Interworking Gateway applies for the participant terminal again enters into media parameter
Media capability be set to the current media ability of the renewal, by going out to media parameter for the downstream media passage applied again
In media capability be set to the current media ability of the renewal, the up media channel and downstream media applied again are led to
The other specification in road is set to identical with former up media channel and downstream media passage, and discharges former up media channel and original
Downstream media passage.
Further, the participant terminal periodically reports the net between Video Interworking Gateway to the application server
Network situation.
Further, the complete media capability collection is notified to become to the network condition by the multipoint control unit
After the corresponding Video Interworking Gateway of participant terminal of change, also pass through the corresponding video interconnection net of other participant terminals in video session
Close, notify other described participant terminals changed with network condition described in meeting terminal to need to carry out media switching.
Further, a kind of application server, including：Network condition determining unit and information transmitting unit, wherein：
The network condition determining unit, for determining whether the network condition of participant terminal changes；
Described information transmitting element, for the current network conditions of participant terminal and media that network condition changes
Capability set is notified to multipoint control unit.
Further, in addition to network information reception unit, wherein：
The network information reception unit, for receiving the network condition that participant terminal is reported；
The network condition determining unit includes：Timer Controlling subelement and network state change judgment sub-unit；
The Timer Controlling subelement, the number of times that the network condition for being reported in the participant terminal changes is big
It is that the participant terminal starts network condition supervision timer when timer starts threshold value；
The network state changes judgment sub-unit, in the timing of the network condition supervision timer,
Judge whether the number of times that the network condition that the participant terminal is reported changes is more than monitoring threshold, if it is greater, then determining
The network condition of the participant terminal changes.
Further, a kind of converting system of media capability in video conference, including：Application server, wherein：
The application server, for determining whether the network condition of participant terminal changes, network condition is occurred
The current network conditions and media capability collection of the participant terminal of change are notified to multipoint control unit.
Further, in addition to：Multipoint control unit and Video Interworking Gateway, wherein：
The multipoint control unit, for according to the current network conditions and media capability collection, determining the network
Complete media capability collection of the participant terminal that situation changes under current network conditions, the complete media capability collection is led to
Know the corresponding Video Interworking Gateway of participant terminal changed to the network condition；
The Video Interworking Gateway, for concentrating the current media ability that selection updates from the complete media capability, and
The participant terminal changed with the network condition carries out media capability switching.
In summary, the present invention determines the network condition of participant terminal by application server in multipart video-meeting
Whether terminal changes, so as to realize according to the current network condition of participant terminal and media capability collection adjustment current media energy
Power, can ensure being smoothed out for video conference effectively and in real time, while farthest ensureing the experience of user.
Brief description of the drawings
Fig. 1 is the Organization Chart of the converting system of the media capability in video conference of present embodiment；
The flow chart of the conversion method of media capability when Fig. 2 is deteriorated for network condition in the video conference of present embodiment；
Fig. 3 for present embodiment video conference in network conditions turn good when media capability conversion method flow chart；
Fig. 4 is the Organization Chart of the application server of present embodiment.
Embodiment
VIG and MCU is under application server (AppServer) control in present embodiment, according to the matchmaker of each terminal
Network condition between ability of immigrants and each terminal and VIG direct-connected therewith, determines the media energy used between VIG and terminal
Power, carries out the transmitted in both directions of media.When the network condition between direct-connected VIG declines when terminal and therewith, by adjusting in time
Media capability between VIG and terminal, it is ensured that business is normally carried out and Consumer's Experience；When terminal and therewith direct-connected VIG it
Between network condition when rising, by adjusting the media capability between VIG and terminal, improve the usage experience of user.
In present embodiment each participant terminal need dynamically every certain time length to application server report with each
Network condition between VIG, each one network condition of terminal profile of application server correspondence reports timer, in the timer
Timing in, if it is determined that the network condition between participant terminal and VIG direct-connected therewith changes, by application control
Network condition between terminal and VIG is issued to MCU by server.
Each participant terminal is logically joined directly together with a VIG, and VIG is controlled by MCU, and MCU is by application server
Control.The Media Stream of VIG receiving terminals transmission is simultaneously forwarded to MCU, and forwarding flows to terminal from the MCU media come.Meanwhile,
Necessary media conversion is according to requirements of service carried out in transmitting procedure, wherein, including sound, video media formats, code check and resolution
The conversion of the one or more aspects such as rate size.
In video conference initial phase, each participant terminal needs to report each and VIG to MCU by application server
Between network condition, and all sounds, video, the media capability of Streaming Media coding/decoding capability supported comprising terminal itself
Collection.MCU issues the network condition of each terminal and the complete media capability collection of the terminal obtained by calculating to corresponding VIG,
VIG is locally being preserved.Each VIG concentrates selection current media ability from complete media capability, and current media ability is that participant is whole
Hold the media capability that is being currently used between VIG, during video conference, any one period, each VIG with it is corresponding
Participant terminal have a current media ability, current media ability includes all of the Media Stream on uplink and downlink direction
Attribute description.Media capability includes the media formats, code check and resolution dimensions that terminal is reported to VIG, and terminal is sent to from VIG
Media formats, code check and resolution dimensions etc..
Above-mentioned complete media capability collection refers to that MCU is according to the network condition between participant terminal and VIG, from participant terminal
All sounds for being supported, video, the media capability of Streaming Media coding/decoding capability are concentrated, calculate under current network conditions,
The set for the media capability that participant terminal can be used.
During video conference, the network condition between participant terminal and direct-connected VIG may improve and may also become
Difference, is illustrated by network conditions turn good and exemplified by being deteriorated separately below.
Assuming that during video conference, the network condition between terminal A and VIG1 direct-connected therewith is for some reason
It is deteriorated, causes terminal A to decline to the VIG1 media qualities sent, it is discontinuous that flower screen, sound occurs in such as image.
As shown in Fig. 2 the conversion method of the media capability in video conference of present embodiment, including：
Step 201：Terminal A is periodically to application server report network situation；
Step 202：When the number of times that terminal A report networks are deteriorated is more than timer and starts threshold value, application server is eventually
A is held to start a network condition supervision timer；
Step 203：Application server judges that the network condition that terminal A is reported is normally secondary in timer timing
When number is less than monitoring threshold values, when timer timing is reached, application server sends switching control message to MCU, is disappearing
Carried terminal A media capability collection and terminal A and the current network condition information of VIG direct-connected therewith in breath；
Step 204：MCU is calculated current according to terminal A media capability collection and current network condition information (variation)
Complete media capability collection under network condition, and the complete media capability collection and relevant information are handed down to VIG1；
Step 205：VIG1 concentrates the current media ability that selection updates from the complete media capability under current network conditions,
And carry out media capability switching with terminal A.
The step of VIG1 and terminal A carries out media capability switching in step 205 includes：
A) terminal A stops at up media channel and sends up to VIG1, but VIG1 does not discharge corresponding up
Media channel resource；
B) VIG1 stops at downstream media passage and sends downlink media stream to terminal A, but does not discharge corresponding downstream media
Channel resource；
C) terminal A newly applies for required up media channel to VIG1, for up media channel, enters and is removed to media parameter
The outer other parameters of media capability keep constant, and the media capability entered to media parameter is set into the current media energy after updating
Power, goes out constant to media parameter and former passage holding；
D) terminal A newly applies for required downstream media passage to VIG1, for downstream media ALT-CH alternate channel, enters and joins to media
Number keeps constant with former passage, goes out to media parameter that other parameters holding is constant in addition to media capability, will go out to media parameter
Media capability is set to the current media ability after updating；
The Media Stream that the downstream media passage newly applied directly continues from the MCU terminal B come and terminal C；To terminal B and
Terminal C Media Stream is changed by the media capability after renewal, and the Media Stream after conversion is output to terminal A by original parameter.
E) resource of the former uplink and downlink media channel of VIG1 releases；
F) VIG1 and terminal A starts the transmission and conversion of Media Stream in new uplink and downlink media channel.
MCU also notifies terminal B and terminal C, terminal after complete media capability collection is issued to VIG1 by VIG2 and VIG3
A is needed to carry out media switching because network condition is deteriorated, and user is pointed out by terminal B and C.
Whole handoff procedure is completed, and the media capability after renewal turns into the current media ability between terminal A and VIG1.Cut
Terminal A two-way media stream can be interrupted temporarily during changing, on terminal B and terminal C counterpart terminal A Media Stream also can temporarily in
Disconnected, counterpart terminal C Media Stream is unaffected on terminal B, and counterpart terminal B Media Stream is also unaffected on terminal C.To all
For impacted terminal, whole handoff procedure control is within one second.
As shown in figure 3, during video conference, the network condition between terminal C and VIG3 direct-connected therewith is due to certain
Plant reason to improve, in the range of terminal C media capability collection, media quality has the space risen between VIG3 and terminal C.
With reference to Fig. 3, the conversion method of the media capability in video conference of present embodiment, including：
Step 301：Terminal C is periodically to application server report network situation；
Step 302：Application server receives the network condition message that terminal C timings are reported, and is receiving the net that terminal C is reported
It is that terminal C starts a network condition supervision timer when number of times that network situation improves is more than timer startup threshold value；
Step 303：Application server is in the range of the timing length of timer, if receive that terminal C reports is network-like
The number of times that condition improves is higher than monitoring threshold, when timer timing reaches, issues switching control message to MCU, in message
Carried terminal C media capability set current network conditions information；
Step 304：MCU is calculated under current network condition according to terminal C media capability collection and current network conditions
Complete media capability collection, and the complete media capability collection and relevant information are handed down to VIG3；
Step 305：VIG3 concentrates the current media ability that selection updates from the complete media capability under current network conditions,
And carry out media capability switching with terminal C.
The step of VIG3 and terminal C carries out media capability switching in step 305 includes：
A) terminal C stops at up media channel and sends up to VIG3, but VIG3 does not discharge corresponding up
Media channel resource；
B) VIG3 stops at downstream media passage and sends downlink media stream to terminal C, but does not discharge corresponding downstream media
Channel resource；
C) terminal C newly applies for required up media channel to VIG3, for up media channel, enters and is removed to media parameter
The outer other parameters of media capability keep constant, and the media capability entered to media parameter is set into the current media energy after updating
Power, goes out constant to media parameter and former passage holding；
D) terminal C newly applies for required downstream media passage to VIG3, for downstream media ALT-CH alternate channel, enters and joins to media
Number keeps constant with former passage, goes out to media parameter that other parameters holding is constant in addition to media capability, will go out to media parameter
Media capability is set to the current media ability after updating；
New downstream media passage directly continues the former Media Stream from the MCU terminal A come and terminal B；To terminal A and end
End B Media Stream is changed by the current media ability of renewal, and the Media Stream after conversion is by original parameter output media to next
Jump or distal end.
E) resource of the former uplink and downlink media channel of VIG3 releases；
F) VIG3 and terminal C starts the transmission and conversion of Media Stream in new uplink and downlink media channel.
MCU also notifies terminal A and terminal B, terminal after complete media capability collection is issued to VIG3 by VIG1 and VIG2
C needs to carry out media switching due to network conditions turn good.
Terminal C two-way media stream can be interrupted temporarily in handoff procedure, and on terminal A and terminal B counterpart terminal C matchmaker
Body stream also can be interrupted temporarily, and counterpart terminal B Media Stream is unaffected on terminal A, counterpart terminal A Media Stream on terminal B
Unaffected, for all impacted terminals, whole handoff procedure control is within one second.
Fig. 1 is refer to, the system of present embodiment is included：Application server, Video Interworking Gateway and multipoint control unit,
Wherein：
Application server, for determining whether the network condition of participant terminal changes, network condition is changed
Participant terminal current network conditions and media capability collection notify to multipoint control unit.
As shown in figure 4, application server includes：Network information reception unit, network condition determining unit and information are sent
Unit：
Network information reception unit, for receiving the network condition that participant terminal is reported；
Network condition determining unit, for determining whether the network condition of participant terminal changes；
Information transmitting unit, for the current network conditions of participant terminal and media capability that network condition changes
Collection is notified to multipoint control unit.
Network condition determining unit includes：Timer Controlling subelement and network state change judgment sub-unit；Timer
Subelement is controlled, when the number of times that the network condition for being reported in participant terminal changes is more than timer startup threshold value, is
Participant terminal starts network condition supervision timer；
Network state changes judgment sub-unit, in the timing of network condition supervision timer, judging participant
Whether the number of times that the network condition that terminal is reported changes is more than monitoring threshold, if it is greater, then determining the net of participant terminal
Network situation changes.
Multipoint control unit, for according to current network conditions and media capability collection, determining that network condition changes
Complete media capability collection of the participant terminal under current network conditions, complete media capability collection is notified occur to network condition
The corresponding Video Interworking Gateway of participant terminal of change；Also pass through the corresponding video interconnection net of other participant terminals in video session
Close, notify other participant terminals changed with meeting terminal network situation to need to carry out media switching.
Video Interworking Gateway, for from complete media capability concentrate selection update current media ability, and with it is network-like
The participant terminal that condition changes carries out media capability switching.
The participant terminal that Video Interworking Gateway changes with network condition, which carries out media capability switching, to be included：
Participant terminal is stopped on up media channel to Video Interworking Gateway transmission up, Video Interworking Gateway
Stop on downstream media passage to participant terminal generation downlink media stream；
Participant terminal applies for up media channel and downstream media passage to Video Interworking Gateway again；
The media energy entered into media parameter for the up media channel that Video Interworking Gateway applies for participant terminal again
Power is set to the current media ability updated, by the media capability gone out into media parameter for the downstream media passage applied again
The current media ability updated is set to, the other specification of the up media channel applied again and downstream media passage is set
To be identical with former downstream media passage and downstream media passage, and discharge former up media channel and former downstream media passage.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention, each step can be with general
Computing device realizes that they can be concentrated on single computing device, or be distributed in what multiple computing devices were constituted
On network, alternatively, they can be realized with the executable program code of computing device, it is thus possible to be stored in
Performed in storage device by computing device, either they are fabricated to respectively each integrated circuit modules or by they
Multiple modules or step are fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hard
Part and software are combined.
Embodiments of the invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (6)
1. a kind of conversion method of media capability in video conference, including：
Application server determines whether the network condition of participant terminal changes, the participant terminal that network condition is changed
Current network conditions and media capability collection notify to multipoint control unit；
The multipoint control unit determines that the network condition becomes according to the current network conditions and media capability collection
Complete media capability collection of the participant terminal of change under current network conditions, the complete media capability collection is notified to the net
The corresponding Video Interworking Gateway of participant terminal that network situation changes；The complete media capability collection refers to, multiparty control list
Member is according to the network condition between participant terminal and Video Interworking Gateway, all sounds supported from participant terminal, video, stream matchmaker
The media capability of body coding/decoding capability is concentrated, calculate under current network conditions, the media energy that participant terminal can be used
The set of power；
The Video Interworking Gateway concentrates the current media ability that selection updates from the complete media capability, and with the network
The participant terminal that situation changes carries out media capability switching.
2. the method as described in claim 1, it is characterised in that the application server determines that the network condition of participant terminal is
It is no change including：
The application server is more than timer actuation threshold in the number of times that the network condition that the participant terminal is reported changes
It is that the participant terminal starts network condition supervision timer during value；
The application server judges what the participant terminal was reported in the timing of the network condition supervision timer
Whether the number of times that network condition changes is more than monitoring threshold, if it is greater, then determining the network condition of the participant terminal
Change.
3. the method as described in claim 1, it is characterised in that the Video Interworking Gateway changes with the network condition
Participant terminal carry out media capability switching include：
The participant terminal is stopped on up media channel to Video Interworking Gateway transmission up, the video
Interworking gateway is stopped on downstream media passage to participant terminal transmission downlink media stream；
The participant terminal applies for up media channel and downstream media passage again to the Video Interworking Gateway；
The matchmaker entered into media parameter for the up media channel that the Video Interworking Gateway applies for the participant terminal again
Ability of immigrants is set to the current media ability of the renewal, by going out into media parameter for the downstream media passage applied again
Media capability is set to the current media ability of the renewal, by the up media channel applied again and downstream media passage
Other specification is set to identical with former up media channel and downstream media passage, and discharges former up media channel and original is descending
Media channel.
4. method as claimed in claim 2, it is characterised in that the participant terminal is periodically reported to the application server
Network condition between Video Interworking Gateway.
5. the method as described in claim 1, it is characterised in that the multipoint control unit leads to the complete media capability collection
Know after the corresponding Video Interworking Gateway of participant terminal changed to the network condition, also by video session it is other with
The corresponding Video Interworking Gateway of meeting terminal, notifies other described participant terminals changed with network condition described in meeting terminal to need
Carry out media switching.
6. a kind of converting system of media capability in video conference, including：Application server, multipoint control unit and video interconnection
Gateway, wherein：
The application server, for determining whether the network condition of participant terminal changes, network condition is changed
Participant terminal current network conditions and media capability collection notify to multipoint control unit；
The multipoint control unit, for according to the current network conditions and media capability collection, determining the network condition
Complete media capability collection of the participant terminal changed under current network conditions, by the complete media capability collection notify to
The corresponding Video Interworking Gateway of participant terminal that the network condition changes；The complete media capability collection refers to, multiple spot
Control unit all sounds supported from participant terminal, is regarded according to the network condition between participant terminal and Video Interworking Gateway
Frequently, Streaming Media coding/decoding capability media capability concentrate, calculate under current network conditions, what participant terminal can be used
The set of media capability；
The Video Interworking Gateway, for concentrating the current media ability that selection updates from the complete media capability, and with institute
State the participant terminal progress media capability switching that network condition changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110210486.8A CN102256101B (en) | 2011-07-26 | 2011-07-26 | A kind of conversion method of media capability in video conference, system and application server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110210486.8A CN102256101B (en) | 2011-07-26 | 2011-07-26 | A kind of conversion method of media capability in video conference, system and application server |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102256101A CN102256101A (en) | 2011-11-23 |
| CN102256101B true CN102256101B (en) | 2017-09-26 |
Family
ID=44983050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110210486.8A Active CN102256101B (en) | 2011-07-26 | 2011-07-26 | A kind of conversion method of media capability in video conference, system and application server |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102256101B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103124342B (en) * | 2013-01-28 | 2017-06-27 | 南京中兴软件有限责任公司 | The method and multipoint control unit being monitored to the state of video conference terminal |
| CN107222707A (en) * | 2016-03-21 | 2017-09-29 | 中兴通讯股份有限公司 | Multiparty conference system and its method and apparatus for realizing Multi-Party Conference |
| CN106375403B (en) * | 2016-08-31 | 2021-06-01 | 惠州学院 | Data synchronization method and device |
| CN109698928B (en) * | 2018-11-15 | 2021-04-13 | 贵阳朗玛信息技术股份有限公司 | Method and device for adjusting video stream in video conference system |
| CN109361893A (en) * | 2018-11-21 | 2019-02-19 | 华平信息技术股份有限公司 | Video conference is gone the same way multi-source live broadcasting method and system |
| CN111327580A (en) * | 2018-12-17 | 2020-06-23 | 华为技术有限公司 | Message transmission method and device |
| CN112422879B (en) * | 2019-08-20 | 2022-10-28 | 华为技术有限公司 | Method and device for dynamically adjusting media capability |
| CN111432158B (en) * | 2020-02-28 | 2022-02-08 | 浙江华创视讯科技有限公司 | Load balancing method and device for media nodes, storage medium and electronic device |
| CN113938468A (en) * | 2020-07-10 | 2022-01-14 | 华为技术有限公司 | Video transmission method, device, system and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101127620A (en) * | 2007-08-29 | 2008-02-20 | 中兴通讯股份有限公司 | A method and system for transmitting logic channel number in session initialization protocol |
| CN101365125A (en) * | 2008-09-27 | 2009-02-11 | 腾讯科技（深圳）有限公司 | Multipath video communication method and system |
| CN101742223A (en) * | 2010-01-19 | 2010-06-16 | 上海华平信息技术股份有限公司 | Intelligent video stream bandwidth regulating method |
-
2011
- 2011-07-26 CN CN201110210486.8A patent/CN102256101B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101127620A (en) * | 2007-08-29 | 2008-02-20 | 中兴通讯股份有限公司 | A method and system for transmitting logic channel number in session initialization protocol |
| CN101365125A (en) * | 2008-09-27 | 2009-02-11 | 腾讯科技（深圳）有限公司 | Multipath video communication method and system |
| CN101742223A (en) * | 2010-01-19 | 2010-06-16 | 上海华平信息技术股份有限公司 | Intelligent video stream bandwidth regulating method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102256101A (en) | 2011-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102256101B (en) | A kind of conversion method of media capability in video conference, system and application server | |
| US10880221B2 (en) | System and method for adapting an application source rate to a load condition | |
| CN103733680B (en) | Method and apparatus for controlling wireless uplink session | |
| US10638351B2 (en) | Service rate adjustment method and apparatus | |
| US7054643B2 (en) | System for rate control of multicast data delivery in a wireless network | |
| CN1998195B (en) | Adaptive and scalable qos architecture for single-bearer multicast/broadcast services | |
| CN102859943B (en) | Method and apparatus providing access network aware presence to applications | |
| EP2002599B1 (en) | Method and apparatus for improved multicast streaming in wireless networks | |
| US8615596B1 (en) | Communication method and system for providing content to a communication device according to a user preference | |
| US6996104B2 (en) | Rate allocation and control for multicast services in wireless networks | |
| KR20140076573A (en) | Application performance improvements in radio networks | |
| KR20060125779A (en) | Fast signalling procedure for streaming services quality of service managing in wireless networks | |
| CN103404102A (en) | Bearing creating method, device and system | |
| CN101496352B (en) | An internet protocol multimedia subsystem network element and its operation method | |
| CN103138874B (en) | A kind of encoding and decoding dynamic negotiation method and apparatus | |
| CN101656864A (en) | Method for realizing selection and watching of video and video session system | |
| CN113163449A (en) | Application program control method, device, equipment and storage medium | |
| CN101552771B (en) | Media gateway, media gateway controller, multimedia telephone intercommunication method and system | |
| EP3841722B1 (en) | Method and system for utilizing network conditions feedback for improving quality of a collaborative media production | |
| EP2264959B1 (en) | Media gateway, media gateway controller, method and system for communication of multimedia phones | |
| US20130254825A1 (en) | Enhanced policy control framework for object-based media transmission in evolved packet systems | |
| CN107294923A (en) | Adjust the method and device of video coding rate | |
| JP2021527351A (en) | Network-controlled uplink media transmission for collaborative media production in scenarios with limited network capacity | |
| CN113037543A (en) | Method, device, equipment and medium for notifying QoS change | |
| CN101772077B (en) | Method, device and video conference system for transmitting real-time media stream data |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170509 Address after: 210012 Nanjing, Yuhuatai District, South Street, Bauhinia Road, No. 68 Applicant after: Nanjing Zhongxing Software Co., Ltd. Address before: 518057 Nanshan District Guangdong high tech Industrial Park, South Road, science and technology, ZTE building, Ministry of Justice Applicant before: ZTE Corporation |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191106 Address after: 518057 Nanshan District science and Technology Industrial Park, Guangdong high tech Industrial Park, ZTE building Patentee after: ZTE Communications Co., Ltd. Address before: 210012 Nanjing, Yuhuatai District, South Street, Bauhinia Road, No. 68 Patentee before: Nanjing Zhongxing Software Co., Ltd. |