CN101827245A - Wireless conference system and data transmission method thereof - Google Patents
Wireless conference system and data transmission method thereof Download PDFInfo
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- CN101827245A CN101827245A CN201010172748A CN201010172748A CN101827245A CN 101827245 A CN101827245 A CN 101827245A CN 201010172748 A CN201010172748 A CN 201010172748A CN 201010172748 A CN201010172748 A CN 201010172748A CN 101827245 A CN101827245 A CN 101827245A
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Abstract
The invention discloses a data transmission method of a wireless conference system, which mainly comprises the following steps that: a mobile conference terminal uploads audio-video information to a conference control device of the wireless conference system when receiving the audio-video information input by a user; and the conference control device forwards the audio-video information uploaded by the mobile conference terminal to other mobile conference terminals in the wireless conference system. The invention also discloses the wireless conference system. The invention can greatly reduce data traffic between the mobile conference terminal in the conference process and the conference control device and avoid the network transmission block between the mobile conference terminal and the conference control device, so that a television conference in the wireless conference system can normally perform; and in addition, the invention greatly saves the bandwidth and is more suitable for the characteristics of a wireless transmission domain.
Description
Technical field
The present invention relates to the wireless session technology, relate in particular to a kind of wireless conference system and data transmission method thereof.
Background technology
Wireless conference system is in wireless communication networks and a kind of brand-new TV conference system fixedly set up on the basis of conference system.
At present, the fixedly conference system that is using mainly is made up of meeting control device and a plurality of video conferencing, passes through the cable network mode between meeting control device and each video conferencing and is connected, and each video conferencing has fixing IP, is connected on the fixed LAN.In fixing conference system, because wired bandwidth is enough big, there are enough resource provisions to use, therefore, can upload the audio-video frequency content of self to the meeting control device with identical speed at each video conferencing of session, control the play content of each video conferencing by the meeting control device.The advantage of doing like this is that the user can choose at random the meeting video that oneself needs and plays, and shortcoming is that occupied bandwidth is very big, the serious waste bandwidth.
In wireless conference system, conference terminal passes through cordless communication network, as present global system for mobile communications (GSM, Global System for Mobile Communications), code division multiple access (CDMA, Code Division Multiple Access) communication network, code division multiple access (the TD-SCDMA that time-division is synchronous, Time Division-Synchronous Code Division Multiple Access) communication network and Wideband Code Division Multiple Access (WCDMA) (WCDMA, Wideband Code Division Multiple Access) communication network etc., be connected and fixed the meeting control device in the TV conference system, or catv terminal wireless with other carries out video conferencing and is connected by the meeting control device, and exchanges data.The cordless communication network that is adopted in the wireless conference system, as the 3G network that is using at present, all users need a shared limited bandwidth, and half of the also not enough fixed network bandwidth of this limited bandwidth, at this moment, if each conference terminal is all uploaded the audio-video frequency content of self with identical speed to the meeting control device, can cause serious Network Transmission to block, and have influence on normally carrying out of meeting, and can cause serious bandwidth waste.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of wireless conference system and data transmission method thereof, and when adopting cordless communication network to carry out video conference to solve, the Network Transmission that causes is blocked and serious problems such as bandwidth waste.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of data transmission method of wireless conference system, described method comprises:
Mobile conference terminal is uploaded described audio/video information to the meeting control device of wireless conference system when receiving the audio/video information of user's input;
When the meeting control device receives the audio/video information that described mobile conference terminal uploads, with described audio/video information be transmitted in the wireless conference system other each move conference terminal.
Mobile conference terminal receives the process of the audio/video information of user's input, be specially: when the audio frequency and video input unit of described mobile conference terminal was in opening, described mobile conference terminal received the audio/video information of user's input by described audio frequency and video input unit.
Described mobile conference terminal is uploaded described audio/video information to described meeting control device, is specially:
Described mobile conference terminal sends the request of uploading described audio/video information to described meeting control device when receiving the audio/video information of user's input, and uploads described audio/video information simultaneously to described meeting control device;
Perhaps, described mobile conference terminal is when receiving the audio/video information of user's input, send the request of uploading described audio/video information to described meeting control device, and after receiving the response that described meeting control device returns, upload described audio/video information to described meeting control device;
Perhaps, described mobile conference terminal directly uploads to described audio/video information described meeting control device when receiving the audio/video information of user's input.
Described method also comprises: described mobile conference terminal receives the audio/video information that described meeting control device is transmitted in real time.
The meeting control device with described audio/video information be transmitted to other each move conference terminal process be specially: each that is transmitted to other after the audio/video information compression that receives moved conference terminal.
Audio/video information compression with receiving is specially: the meeting control device reduces the resolution of described audio/video information, compresses described audio/video information.
When comprising fixedly conference terminal in described wireless conference system, described method also comprises: the audio/video information that the meeting control device is also uploaded described mobile conference terminal is transmitted to each fixedly conference terminal.
The meeting control device is transmitted to each fixedly process of conference terminal with described audio/video information, is specially: the meeting control device directly is transmitted to described audio/video information each fixedly conference terminal.
A kind of wireless conference system, described system comprises mobile conference terminal and meeting control device, the meeting control device passes through wireless network and communicates by letter with mobile conference terminal; Wherein,
Mobile conference terminal is used for when receiving the audio/video information of user's input the audio/video information that receives being uploaded to described meeting control device;
The meeting control device is used to receive the audio/video information that described mobile conference terminal is uploaded, and each moves conference terminal with this audio/video information is transmitted to other.
Described wireless conference system also comprises: fixing conference terminal; , wherein,
Fixedly conference terminal is used to receive described meeting control device and is transmitted to the audio/video information of self.
Described fixedly conference terminal also is used for uploading audio/video information to described meeting control device;
Described meeting control device also is used for the audio/video information that described fixedly conference terminal is uploaded is transmitted to described mobile conference terminal and other fixedly conference terminal.
Described meeting control harness body also is used for: each that is transmitted to other after the described audio/video information compression moved conference terminal.
Described meeting control device also comprises: the audio frequency and video input unit that is used to import audio/video information.
Described audio frequency and video input unit comprises: camera and/or Mike.
A kind of wireless conference system provided by the invention and data transmission method thereof, mobile conference terminal wherein is only when receiving the audio/video information of user's input, just upload audio/video information to the meeting control device of wireless conference system, otherwise, the information of not uploading is given the meeting control device, so, just can reduce the data traffic between the mobile conference terminal and meeting control device in the video conference process greatly, avoid the Network Transmission between mobile conference terminal and the meeting control device to block, make the video conference of wireless conference system normally to carry out, and saved bandwidth greatly, be more suitable for the characteristic in wireless transmission territory.
Description of drawings
Fig. 1 is the composition structural representation as the wireless conference system of a preferred embodiment of the present invention;
Fig. 2 is the composition structural representation as the wireless conference system of another kind of preferred embodiment of the present invention;
Fig. 3 is the realization flow figure as the wireless conference system data transmission method of a preferred embodiment of the present invention;
Fig. 4 is for realizing the idiographic flow schematic diagram of video conference by the present invention.
Embodiment
The invention provides the method for a kind of wireless conference system and transfer of data thereof, all terminals are uploaded the implementation of audio/video information with the phase same rate before changing, with the data traffic of each conference terminal in the control wireless conference system.
The data transmission method of wireless conference system provided by the present invention, mainly comprise: mobile conference terminal is when receiving the audio/video information of user's input, just upload described audio/video information to the meeting control device of wireless conference system, otherwise, do not upload audio/video information to the meeting control device; When the meeting control device receives the audio/video information that described mobile conference terminal uploads, with described audio/video information be transmitted in the wireless conference system other each move conference terminal.
Particularly, the meeting control device be transmitted to other after with the compression of the audio/video information that receives each move conference terminal.Here, the meeting control device can compress described audio/video information by reducing the resolution of audio/video information.
Especially, when also comprising fixedly conference terminal in wireless conference system, the meeting control device also can be transmitted to each fixedly conference terminal with the audio/video information that receives, and the concrete mode of forwarding be directly forwarding.
Here, described mobile conference terminal also receives the audio/video information that the meeting control device is transmitted in real time, so that can receive the audio/video information that fixing conference terminal or other mobile conference terminal are uploaded to the meeting control device.
For realizing said method, the present invention also provides a kind of wireless conference system, mainly comprises: mobile conference terminal and meeting control device, meeting control device pass through wireless network and communicate by letter with mobile conference terminal; Wherein, mobile conference terminal is used for when receiving the audio/video information of user's input the audio/video information that receives being uploaded to described meeting control device; The meeting control device is used to receive the audio/video information that described mobile conference terminal is uploaded, and each moves conference terminal with this audio/video information is transmitted to other.
Wherein, can also comprise fixedly conference terminal in the described wireless conference system, should be fixedly conference terminal be used to receive the meeting control device and be transmitted to the audio/video information of self, can also upload audio/video information to the meeting control device, the meeting control device can be transmitted this audio/video information each and move conference terminal and other fixedly conference terminal after receiving the audio/video information that fixedly conference terminal is uploaded.
Here, the meeting control device is at first transmitted the audio/video information compression when mobile conference terminal is transmitted audio/video information again.
With reference to shown in Figure 1, wireless conference system as a preferred embodiment of the present invention, mainly comprise: mobile conference terminal, fixedly conference terminal and meeting control device, passing through cordless communication network between meeting control device and the mobile conference terminal communicates, meeting control device and fixedly pass through cable network between the conference terminal and communicate, wherein
The meeting control device is used to receive each and moves conference terminal and/or the fixing audio/video information uploaded of conference terminal, and each moves conference terminal, and fixing conference terminal with the audio/video information that receives is transmitted to other;
Mobile conference terminal is used for when receiving the audio/video information of user's input this audio/video information being uploaded to the meeting control device; Simultaneously, receive the meeting control device and be transmitted to audio/video information and the demonstration of self;
Fixedly conference terminal is used for uploading audio/video information to the meeting control device, receives the meeting control device and is transmitted to audio/video information and the demonstration of self.
Here, described meeting control device specifically also is used for: each that is transmitted to other after the compression of described audio/video information moved conference terminal; Each that the audio/video information that receives directly is transmitted to other be conference terminal fixedly.So, just can reduce the shared bandwidth of information of downlink transfer, avoid the information of cordless communication network to block, guarantee that each moves conference terminal and can normally receive described audio/video information by cordless communication network.
Wherein, described meeting control device also comprises: the audio frequency and video input unit that is used to import audio/video information.
Here, described audio frequency and video input unit can comprise: input equipments such as camera and/or Mike.
In preferred embodiment shown in Figure 1, one of them fixedly the user of conference terminal be in and say speech phase, fixedly conference terminal is with the image of user's input, audio/video informations such as sound upload to the meeting control device, the meeting control device fixedly audio/video information uploaded of conference terminal is transmitted to fixedly conference terminal of each wireless session terminal and each, simultaneously, other fixedly conference terminal receives described audio/video information, and the video informations such as image of self user input are uploaded to the meeting control device and be transmitted to each wireless session control and described fixedly conference terminal by described meeting control device, each wireless session terminal all receives only the audio/video information that described conference terminal is transmitted.
With reference to shown in Figure 2, the wireless conference system of another kind of preferred embodiment of the present invention, structure is identical with the structure of wireless conference system shown in Figure 1, different is, in this embodiment, the user of one of them wireless session terminal is in and says speech phase, after this wireless session terminal receives the audio/video information of user's input, upload audio/video information to described meeting control device, and receive the video informations such as image that described meeting control device is uploaded to the fixedly conference terminal of self transmitting simultaneously.
With reference to shown in Figure 3, the wireless conference system data transmission method as a kind of preferred embodiment of the present invention mainly may further comprise the steps:
Step 301: when mobile conference terminal receives the audio/video information of user's input, then upload this audio/video information to the meeting control device of wireless conference system;
Step 302: the meeting control device when receiving the audio/video information that described mobile conference terminal uploads, with described audio/video information be transmitted in the wireless conference system other each move conference terminal, and fixing conference terminal.
Here, described meeting control device is specifically as follows a server, and this server can move conference terminal by cordless communication network and each and communicate, but also can by finite element network such as fixed LAN and each fixedly conference terminal communicate.
Wherein, described method also comprises: described mobile conference terminal receives the audio/video information that described meeting control device is transmitted in real time.
In the practical application, when mobile conference terminal user need talk, open the audio/video informations such as Mike, shooting first-class audio/video information input unit and sound import, image of mobile conference terminal, mobile conference terminal uploads to the meeting control device with this audio/video information after receiving the audio/video information of user's input by Mike, the first-class audio frequency and video input unit of shooting.Wherein, the image information that mobile conference terminal is uploaded can be set to high-resolution data, and concrete resolution value can be determined and be provided with in mobile conference terminal according to actual needs.Here, mobile conference terminal also receives described meeting control device and is transmitted to the audio/video information of self when uploading audio/video information.
When mobile conference terminal user does not need to talk, the Mike of mobile conference terminal, the first-class audio frequency and video input unit of shooting are in closed condition, mobile conference terminal can't receive user's audio/video information, at this moment, mobile conference terminal is not uploaded audio/video information to the meeting control device, receives only the information that the meeting control device is transmitted.
Wherein, the meeting control device specifically can comprise the process that described audio/video information is transmitted to other each terminals: each fixing conference terminal that the meeting control device directly is transmitted to other with the audio/video information that receives; And/or, the meeting control device be transmitted to other after with the compression of the audio/video information that receives each move conference terminal.
Particularly, the meeting control device sends to fixedly conference terminal with mobile conference terminal or the fixing high-resolution audio/video information uploaded of conference terminal with high-resolution; And the audio/video information with high-resolution audio, video data boil down to low resolution is transmitted to mobile conference terminal.
Among the present invention, each fixedly conference terminal adopt data transmission method in the existing fixedly conference system, upload audio/video information and receive the audio/video information of meeting control device forwarding to the meeting control device, detailed process is a prior art, does not repeat them here.
Below in conjunction with specific implementation of the present invention is described in further details.
With reference to shown in Figure 4, by wireless conference system provided by the present invention and data transmission method thereof, each moves between the conference terminal in the wireless conference system, fixedly between the conference terminal and each moves conference terminal and each fixedly carries out the process of video conference between the conference terminal, idiographic flow is as follows for each:
In the meeting access procedure, the meeting control device in the wireless conference system is notified each to move conference terminal and is not uploaded any information, receives only information; And, each fixedly conference terminal then be in the state of uploading and receive information.
Particularly, the meeting control device judges according to the identification information of the terminal of initiating meeting whether this conference terminal is mobile conference terminal.In the meeting access procedure, each conference terminal can send to the identification information of self the meeting control device, and the meeting control device is discerned each conference terminal according to this identification information and judged whether each conference terminal is mobile conference terminal.
Step 405: meeting is carried out in the process, and when having the user of mobile conference terminal to make a speech, the user is to mobile conference terminal input audio/video information, and mobile conference terminal is uploaded to the meeting control device with this audio/video information;
Particularly, mobile conference terminal can at first send the request of uploading described audio/video information to the meeting control device, self will upload audio/video information the notification of meetings control device, after the meeting control device returned response, the audio/video information of the user being imported mobile conference terminal uploaded to the meeting control device; Perhaps, mobile conference terminal can send the request of uploading described audio/video information to described meeting control device, uploads audio/video information simultaneously to the meeting control device; Perhaps, mobile conference terminal can be when receiving the audio/video information of user's input, and directly the audio/video information with user's input is uploaded to the meeting control device, does not send upload request.
Step 406: the meeting control device receives the audio/video information that mobile conference terminal is uploaded, and this audio/video information is transmitted to other each conference terminals, makes the user of other conference participations can know mobile conference terminal user's speech;
Particularly, the meeting control device mode of passing through signaling directly is transmitted to described audio/video information other fixedly conference terminal; When described information is transmitted to other mobile conference terminal, then at first adjust the resolution of this audio/video information, compression send to other behind the audio/video information each move conference terminal, so, just, can guarantee the fixedly high-resolution reception of conference terminal and the normal reception of mobile conference terminal.
Here, adjust resolution process can for: the meeting control device is according to the situation of practical application, as signal quality of current wireless communication network etc., the resolution of the audio/video information that will transmit reduces, with the compression audio/video information, afterwards, each that the audio/video information after the compression is sent to other participants moves conference terminal.
Here, mobile conference terminal can also send and upload the message finished to the meeting control device after stopping to upload audio/video information, has uploaded with the audio/video information of notification of meetings control device self to finish.
Here, the meeting control device can also be finished uploading of receiving forwards and give other each conference terminals, makes the user of other conference participations can learn that this user who moves conference terminal speech finishes.
Wherein, carry out in the process in video conference, fixedly conference terminal is in the state of uploading and receiving always, and upload identical with the speed that receives, therefore, no matter fixedly whether the user of conference terminal needs speech, fixedly conference terminal all can be uploaded to the meeting control device with the audio/video information of user's input, particularly, and when fixedly the conference terminal user does not make a speech, upload user's video information, and receive user's the audio/video information that the meeting control device is transmitted to other conference participations of self; During speech, then upload user's video information and audio-frequency information, and receive meeting control device audio/video information that be transmitted to self, that other-end is uploaded; When meeting adjourned, fixedly conference terminal disconnected with the meeting control device and being connected, and just the stop tone video information uploading and receiving.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. the data transmission method of a wireless conference system is characterized in that, described method comprises:
Mobile conference terminal is uploaded described audio/video information to the meeting control device of wireless conference system when receiving the audio/video information of user's input;
When the meeting control device receives the audio/video information that described mobile conference terminal uploads, with described audio/video information be transmitted in the wireless conference system other each move conference terminal.
2. according to the data transmission method of the described wireless conference system of claim 1, it is characterized in that, mobile conference terminal receives the process of the audio/video information of user's input, be specially: when the audio frequency and video input unit of described mobile conference terminal was in opening, described mobile conference terminal received the audio/video information of user's input by described audio frequency and video input unit.
3. according to the data transmission method of the described wireless conference system of claim 1, it is characterized in that described mobile conference terminal is uploaded described audio/video information to described meeting control device, is specially:
Described mobile conference terminal sends the request of uploading described audio/video information to described meeting control device when receiving the audio/video information of user's input, and uploads described audio/video information simultaneously to described meeting control device;
Perhaps, described mobile conference terminal is when receiving the audio/video information of user's input, send the request of uploading described audio/video information to described meeting control device, and after receiving the response that described meeting control device returns, upload described audio/video information to described meeting control device;
Perhaps, described mobile conference terminal directly uploads to described audio/video information described meeting control device when receiving the audio/video information of user's input.
4. according to the data transmission method of the described wireless conference system of claim 1, it is characterized in that described method also comprises: described mobile conference terminal receives the audio/video information that described meeting control device is transmitted in real time.
5. according to the data transmission method of the described wireless conference system of claim 1, it is characterized in that, the meeting control device with described audio/video information be transmitted to other each move conference terminal process be specially: each that is transmitted to other after the audio/video information compression that receives moved conference terminal.
6. according to the data transmission method of the described wireless conference system of claim 5, it is characterized in that the audio/video information compression with receiving is specially: the meeting control device reduces the resolution of described audio/video information, compresses described audio/video information.
7. according to the data transmission method of the arbitrary described wireless conference system of claim 1 to 6, it is characterized in that, when comprising fixedly conference terminal in described wireless conference system, described method also comprises: the audio/video information that the meeting control device is also uploaded described mobile conference terminal is transmitted to each fixedly conference terminal.
8. according to the data transmission method of the described wireless conference system of claim 7, it is characterized in that the meeting control device is transmitted to each fixedly process of conference terminal with described audio/video information, is specially:
The meeting control device directly is transmitted to described audio/video information each fixedly conference terminal.
9. a wireless conference system is characterized in that, described system comprises mobile conference terminal and meeting control device, and the meeting control device passes through wireless network and communicates by letter with mobile conference terminal; Wherein,
Mobile conference terminal is used for when receiving the audio/video information of user's input the audio/video information that receives being uploaded to described meeting control device;
The meeting control device is used to receive the audio/video information that described mobile conference terminal is uploaded, and each moves conference terminal with this audio/video information is transmitted to other.
10. wireless conference system according to claim 9 is characterized in that, described wireless conference system also comprises: fixing conference terminal; , wherein,
Fixedly conference terminal is used to receive described meeting control device and is transmitted to the audio/video information of self.
11. wireless conference system according to claim 10 is characterized in that, described fixedly conference terminal also is used for uploading audio/video information to described meeting control device;
Described meeting control device also is used for the audio/video information that described fixedly conference terminal is uploaded is transmitted to described mobile conference terminal and other fixedly conference terminal.
12., it is characterized in that described meeting control harness body also is used for according to the arbitrary described wireless conference system of claim 9 to 11: each that is transmitted to other after the described audio/video information compression moved conference terminal.
13., it is characterized in that described meeting control device also comprises according to the arbitrary described wireless conference system of claim 9 to 11: the audio frequency and video input unit that is used to import audio/video information.
14. wireless conference system according to claim 13 is characterized in that, described audio frequency and video input unit comprises: camera and/or Mike.
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Application publication date: 20100908 |