CN101945119B - Video session method based on two-way HFC (Hybrid Fiber Coax) network as well as associated equipment and system - Google Patents
Video session method based on two-way HFC (Hybrid Fiber Coax) network as well as associated equipment and system Download PDFInfo
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Abstract
The embodiment of the invention discloses a video session method based on a two-way HFC (Hybrid Fiber Coax) network as well as associated equipment and system. The video session method based on the two-way HFC network comprises the following steps of: obtaining a session media stream parameter by a video session controller; transmitting a first control signaling carrying the session media stream parameter to a video transcoding server; obtaining a transmission stream parameter by the video session controller; and transmitting a second control signaling carrying the transmission stream parameter to a digital television receiving terminal by the two-way HFC network so that the digital television receiving terminal receives, analyzes and plays a transmission stream processed by an edge modulator through the two-way HFC network according to the transmission stream parameter. The technical scheme of the invention can effectively solve the problem of insufficient transmission bandwidth caused by providing multiple paths of video or high-definition video sessions in a video session system and meets the higher requirement of a user on the video session system.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of video-meeting method based on Bidirectional HFC Network and relevant device and system.
Background technology
Development along with popularizing of using of video conferencing system and network technology, the user to the functional requirement meeting of video conferencing system more comprehensively, more deep, therefore, on the basis of the basic function that video conferencing system is provided, video conferencing system also should satisfy growing user's request, increase such as interactive object quantity in the video conference, the raising of video image quality etc., this also is the further perfect requirement to realizing that the required technical conditions of video conferencing system propose, under more perfect technical conditions, video conference just can provide more the sound of high-quality to look interactive service, could promote the further popularization that video conferencing system is used.
H.323 traditional video conferencing system is based on agreement and finishes, although technology maturation, but more intense to dedicated network and special hardware dependence, be unfavorable for popularizing of video conference application, and present video conferencing system Internet-based engineering duty group (IETF normally, Internet Engineering Task Force) session initiation protocol (SIP that formulates, Session Initiation Protocol) finishes, it adopts ADSL (Asymmetric Digital Subscriber Line) (ADSL usually, Asymmetric Digital Subscriber Line) access way, can realize H.323 various functions, and it is simple to have agreement, the advantages such as autgmentability is stronger.
But, the inventor finds, can support its normal application although adopt the video conferencing system of ADSL access way, but the development along with popularizing of using of video video conferencing system and network technology, its limited transmission bandwidth can't satisfy the growing demand of user, therefore, the transformation to video conferencing system is very necessary.
Summary of the invention
The embodiment of the invention provides a kind of video-meeting method based on Bidirectional HFC Network and relevant device and system, be used for solving video conferencing system, because the problem of the transmission bandwidth deficiency that multi-channel video or high-resolution video conference bring is provided, simultaneously, satisfy the user to the higher demand of video conferencing system.
For solving the problems of the technologies described above, the embodiment of the invention provides following technical scheme:
A kind of video-meeting method based on Bidirectional HFC Network comprises:
The video conference controller obtains IMS conference medium stream parameter;
Send the first control signal that carries above-mentioned IMS conference medium stream parameter to the video code conversion server, so that above-mentioned video code conversion server flows parameter according to above-mentioned IMS conference medium, its IMS conference medium circulation code that receives is sent to edge modulator for after the transport stream;
The video conference controller obtains the transport stream parameter;
Carry the second control signal of above-mentioned transport stream parameter by Bidirectional HFC Network to the receiving terminal for digital television transmission, so that above-mentioned receiving terminal for digital television is according to above-mentioned transport stream parameter, by the transport stream of Bidirectional HFC Network reception after edge modulator is processed, and resolve and play.
A kind of video conference control appliance comprises:
The first acquiring unit is used for obtaining IMS conference medium stream parameter;
The first transmitting element, be used for sending the first control signal that carries above-mentioned IMS conference medium stream parameter to the video code conversion server, so that above-mentioned video code conversion server flows parameter according to above-mentioned IMS conference medium, its IMS conference medium circulation code that receives is sent to edge modulator for after the transport stream;
Second acquisition unit is used for obtaining the transport stream parameter;
The second transmitting element, be used for carrying the second control signal of above-mentioned transport stream parameter by Bidirectional HFC Network to the receiving terminal for digital television transmission, so that above-mentioned receiving terminal for digital television is according to above-mentioned transport stream parameter, by the transport stream of Bidirectional HFC Network reception after edge modulator is processed, and resolve and play.
A kind of video conferencing system based on Bidirectional HFC Network comprises:
The video conference controller, video code conversion server, edge modulator;
Wherein, the video conference controller is used for obtaining IMS conference medium stream parameter; Send the first control signal that carries above-mentioned IMS conference medium stream parameter to the video code conversion server, so that above-mentioned video code conversion server flows parameter according to above-mentioned IMS conference medium, its IMS conference medium circulation code that receives is sent to edge modulator for after the transport stream; Obtain the transport stream parameter; Carry the second control signal of above-mentioned transport stream parameter by Bidirectional HFC Network to the receiving terminal for digital television transmission, so that above-mentioned receiving terminal for digital television is according to above-mentioned transport stream parameter, by the transport stream of Bidirectional HFC Network reception after edge modulator is processed, and resolve and play;
The video code conversion server is used for flowing parameter according to above-mentioned IMS conference medium the IMS conference medium circulation code that receives is sent to edge modulator for after the transport stream;
Edge modulator is used for sending through the transport stream after its processing to above-mentioned receiving terminal for digital television, so that above-mentioned receiving terminal for digital television receives above-mentioned transport stream according to described transport stream parameter by Bidirectional HFC Network, and resolves and plays.
The IMS conference medium that obtains in the video conference by the video conference controller in the embodiment of the invention flows parameter and transport stream parameter, and above-mentioned transport stream parameter sent to receiving terminal for digital television, so that receiving terminal for digital television can receive the transport stream that is sent by edge modulator accordingly according to above-mentioned transport stream parameter, and resolve and play, on the one hand, this video-meeting method has been expanded the application of receiving terminal for digital television, on the other hand, bidirectional optical fiber-coaxial cable (HFC, Hybrid Fiber-Coaxial) transmission characteristic of network high-quality can provide more reliable and more stable video conference for the user, simultaneously, in the embodiment of the invention, IMS conference medium stream sends to receiving terminal for digital television by edge modulator, has saved the bandwidth of HFC duplex channel.In sum, the video-meeting method based on Bidirectional HFC Network that the embodiment of the invention provides can solve in the video conferencing system effectively because the problem of the transmission bandwidth deficiency that multi-channel video or high-resolution video conference bring is provided, simultaneously, satisfied the higher demand of user to video conferencing system.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The network topology structure schematic diagram of a kind of video-meeting method based on Bidirectional HFC Network that Fig. 1 provides for the embodiment of the invention;
A kind of video-meeting method schematic flow sheet based on Bidirectional HFC Network that Fig. 2 provides for the embodiment of the invention;
The another kind that Fig. 3 provides for the embodiment of the invention is based on the video-meeting method schematic flow sheet of Bidirectional HFC Network;
A kind of video conference control appliance structural representation that Fig. 4 provides for the embodiment of the invention;
The structural representation of a kind of video conferencing system based on Bidirectional HFC Network that Fig. 5 provides for the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of video-meeting method based on Bidirectional HFC Network, be used for solving video conferencing system, because the problem of the transmission bandwidth deficiency that multi-channel video or high-resolution video conference bring is provided, simultaneously, satisfy the user to the higher demand of video conferencing system.
For so that goal of the invention of the present invention, feature, advantage can be more obvious and understandable, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, but not whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Along with the popularization of the integration of three networks and the day by day maturation of technology thereof, the integration of three networks will inevitably become the development trend that modern information technologies merge.The inventor finds in research process, if the function by the expansion of digital television receiving terminal, utilize existing Bidirectional HFC Network to realize video conference, not only can improve transmission rate and the network utilization of the Media Stream in the video conference, for the user provides more reliable and more stable video conference, on the other hand, Bidirectional HFC Network has the higher network bandwidth, it can be the video conference that the user provides high definition, and can support more user terminal to join in the video conference, satisfy the user to the higher demand of video conferencing system, in the epoch that modern information technologies merge, will inevitably become a kind of development trend in future based on the video conference of Bidirectional HFC Network.
At first see also Fig. 1, the network topology structure schematic diagram of a kind of video-meeting method based on Bidirectional HFC Network that Fig. 1 provides for the embodiment of the invention, can in Bidirectional HFC Network, dispose video conference controller (mainly being responsible for passing through duplex channel transmission of video meeting signaling and the control signal of HFC), video code conversion server (main be responsible for that the IMS conference medium stream that receives from IP network or Bidirectional HFC Network is carried out transcoding process) and edge modulator (are mainly responsiblely carried out multiplexing to the transport stream that sends over from video code translator, after modulation etc. are processed, send to receiving terminal for digital television by half-duplex channel) etc. functional entity, receiving terminal for digital television can be undertaken alternately by HFC duplex channel and video conference controller, and, also can be with connected microphone, the IMS conference medium stream that the first-class peripheral hardware of making a video recording extracts sends by iso-ip Internetworking protocol ISO-IP (IP, Internet protocol) net or Bidirectional HFC Network.The technical scheme of the embodiment of the invention can be implemented under network topology structure as shown in Figure 1.Wherein, can carry out the software and hardware upgrading to receiving terminal for digital television, increase corresponding communication module, bi-directional communication interface and conference session client, can also increase necessary conference session peripheral hardware (for example microphone, shooting first-class), it be satisfied carry out the software and hardware basic demand of conference session.
The below is described a kind of video-meeting method based on Bidirectional HFC Network in the embodiment of the invention, sees also Fig. 2, and an embodiment comprises in the embodiment of the invention:
201, the video conference controller obtains IMS conference medium stream parameter;
Before the video conference controller obtains IMS conference medium stream parameter, can by video conference signaling, in Bidirectional HFC Network, the parameter of receiving terminal for digital television pre-receiving or the pre-IMS conference medium stream (such as audio frequency, video information etc.) that sends be held consultation between receiving terminal for digital television and the videoconference server.
Under a kind of application scenarios, the video conference controller can obtain IMS conference medium stream parameter by obtaining and resolve above-mentioned video conference signaling, perhaps, also can obtain by the 3rd control signal that carries IMS conference medium stream parameter that the receiving digital television receiving terminal sends this IMS conference medium stream parameter, be not construed as limiting herein.
Above-mentioned IMS conference medium stream parameter can comprise the IP address of source receiving terminal for digital television, the IP address of target number television receive terminal, protocol type, one or more in the port numbers of the port numbers of source receiving terminal for digital television and target number television receive terminal.
Above-mentioned video conference signaling can adopt Session initiation Protocol (SIP, Session Initiation Protocol), by the cable modem terminal system (CMTS in the Bidirectional HFC Network, Cable Modem Termination System) with cable modem (CM, Cable Modem) duplex channel that makes up is transmitted, perhaps, also can cross coaxial cable transmission (EOC by the ether data communication device in the Bidirectional HFC Network, Ethernet over Coax) and the duplex channel that makes up of EOC terminal transmit, be not construed as limiting herein.
202, the video conference controller sends the first control signal that carries above-mentioned IMS conference medium stream parameter to the video code conversion server;
After obtaining IMS conference medium stream parameter, the video conference controller can send the first control signal that carries above-mentioned IMS conference medium stream parameter to the video code conversion server, so that the video code conversion server is according to above-mentioned IMS conference medium stream parameter, its IMS conference medium circulation code that receives is sent to edge modulator for transport stream after changing into.
Be understandable that, when the video code conversion server receives IMS conference medium stream, can be that transport stream with the IP header is (such as Transport Stream over IP with its transcoding according to above-mentioned Media Stream parameter, be TS over IP stream), send it to afterwards edge modulator, so that edge modulator is carried out follow-up processing.
203, the video conference controller obtains the transport stream parameter;
Owing to usually carry out the transmission of transport stream (such as TS stream) in the primary video meeting with fixing frequency, and in video conferencing system, the frequency point information of different video conferences is usually not identical, therefore, before video conference begins, need to determine the transport stream parameter (can comprise frequency, conferencing information etc.) of video conference.
The video conference controller can perhaps, also can be before video conference begins the video conference controller to be carried out setting in advance of transport stream parameter by holding consultation to obtain the transport stream parameter with the frequency management equipment, is not construed as limiting herein.
Under a kind of application scenarios, the video conference controller obtains after the above-mentioned transport stream parameter, can send to edge modulator and carry the 4th control signal of above-mentioned transport stream parameter, so that edge modulator is according to this transport stream parameter, after its transport stream with the IP header (such as TS over IP stream) that is sent by the video code conversion server that receives carried out respective handling, send to corresponding receiving terminal for digital television according to the IP header, certainly, the video conference controller can not send above-mentioned the 4th control signal to edge modulator yet, edge modulator can by holding consultation to obtain this transport stream parameter with the frequency management equipment voluntarily, be not construed as limiting herein.
204, the video conference controller sends to receiving terminal for digital television and carries the second control signal of above-mentioned transport stream parameter;
After obtaining the transport stream parameter, the video conference controller can send to receiving terminal for digital television by Bidirectional HFC Network and carry the second control signal of above-mentioned transport stream parameter, so that receiving terminal for digital television is according to above-mentioned transport stream parameter, receive after the transport stream after the edge modulator processing by Bidirectional HFC Network, and it is resolved and plays.
Will be understood that, there is half-duplex channel (such as broadcast channel) between edge modulator and receiving terminal for digital television, edge modulator is after processing the transport stream that receives, transport stream after can will processing by this passage sends to above-mentioned receiving terminal for digital television, thereby can save the bandwidth of HFC duplex channel.
Need to prove, above-mentioned control signal can be based on real-time streaming protocol (RTSP, Real Time Streaming Protocol) or the control signal of other agreement, above-mentioned receiving terminal for digital television can be set-top box, or, network protocol television, or, digital TV integrated machine perhaps can also be other terminal that can realize above-mentioned video-meeting method, is not construed as limiting herein; In the video conference process, the audio/video information that above-mentioned receiving terminal for digital television can also extract connected camera and microphone sends, for example can pass through RTP (RTP, Real-time Transport Protocol) sends the audio/video information that camera and microphone extract.
Be understandable that, above-mentioned video conference controller can be integrated in various switches, router or the receiving terminal for digital television, also can be independent equipment, it can provide service for a plurality of receiving terminal for digital television, video code conversion server or edge modulator simultaneously; Above-mentioned video code conversion server and edge modulator can be integrated in the equipment, perhaps, also can be split up into independent equipment, can provide service for a plurality of receiving terminal for digital television equally.
Therefore, the IMS conference medium that obtains in the video conference by the video conference controller in the embodiment of the invention flows parameter and transport stream parameter, and above-mentioned transport stream parameter sent to receiving terminal for digital television, so that receiving terminal for digital television can receive the transport stream that is sent by edge modulator accordingly according to above-mentioned transport stream parameter, and resolve and play, on the one hand, this video-meeting method has been expanded the application of receiving terminal for digital television, on the other hand, the transmission characteristic of bidirectional optical fiber-coaxial cable hfc plant can provide more reliable and more stable video conference for the user, simultaneously, in the embodiment of the invention, IMS conference medium stream sends to receiving terminal for digital television by edge modulator, has saved the bandwidth of HFC duplex channel.In sum, the video-meeting method based on Bidirectional HFC Network that the embodiment of the invention provides can solve in the video conferencing system effectively because the problem of the transmission bandwidth deficiency that multi-channel video or high-resolution video conference bring is provided, simultaneously, satisfied the higher demand of user to video conferencing system.
For ease of better understanding the technical scheme of the embodiment of the invention, the below is described in detail the video-meeting method based on Bidirectional HFC Network in the embodiment of the invention, see also Fig. 3, another embodiment of video-meeting method based on Bidirectional HFC Network in the embodiment of the invention comprises:
301, receiving terminal for digital television is by video conference signaling, with videoconference server consultative conference Media Stream parameter;
When receiving terminal for digital television joins in the video conferencing system, it need to consult with videoconference server the parameter of its pre-receiving or the pre-IMS conference medium stream that sends, and receiving terminal for digital television can be by coming consultative conference Media Stream parameter with videoconference server interactive video conference control signaling.Wherein, video conference signaling can adopt Session Initiation Protocol, transmits by the duplex channel that CMTS and CM make up, and perhaps, also can transmit by the duplex channel that EOC and EOC terminal make up, and is not construed as limiting herein.
Wherein, IMS conference medium stream parameter can comprise the IP address of source receiving terminal for digital television, the IP address of target number television receive terminal, protocol type, one or more in the port numbers of the port numbers of source receiving terminal for digital television and target number television receive terminal.
302, the video conference controller obtains IMS conference medium stream parameter;
Under a kind of application scenarios, the video conference controller can obtain IMS conference medium stream parameter by obtaining and resolve above-mentioned video conference signaling, perhaps, also can obtain by the 3rd control signal that carries above-mentioned IMS conference medium stream parameter that the receiving digital television receiving terminal sends this IMS conference medium stream parameter, be not construed as limiting herein.
303, the video conference controller sends the first control signal that carries above-mentioned IMS conference medium stream parameter to the video code conversion server;
After obtaining IMS conference medium stream parameter, the video conference controller can send the first control signal that carries above-mentioned IMS conference medium stream parameter to the video code conversion server, so that the video code conversion server is processed accordingly according to above-mentioned IMS conference medium stream parameter.
304, the video conference controller obtains the transport stream parameter;
Owing to usually carry out the transmission of transport stream (such as TS stream) in the primary video meeting with fixing frequency, and in video conferencing system, the frequency point information of different video conferences is usually not identical, therefore, before video conference begins, need to determine the transport stream parameter (can comprise frequency, conferencing information etc.) of video conference.
The video conference controller can perhaps, also can be before video conference begins the video conference controller to be carried out setting in advance of transport stream parameter by holding consultation to obtain the transport stream parameter with the frequency management equipment, is not construed as limiting herein.
Under a kind of application scenarios, the video conference controller obtains after the above-mentioned transport stream parameter, can send to edge modulator and carry the 4th control signal of above-mentioned transport stream parameter, so that edge modulator is according to this transport stream parameter, after its transport stream with the IP header (such as TS over IP stream) that is sent by the video code conversion server that receives carried out respective handling, send to corresponding receiving terminal for digital television according to the IP header, certainly, the video conference controller can not send above-mentioned the 4th control signal to edge modulator yet, edge modulator can by holding consultation to obtain this transport stream parameter with the frequency management equipment voluntarily, be not construed as limiting herein.
305, the video conference controller sends to receiving terminal for digital television and carries the second control signal of above-mentioned transport stream parameter;
After obtaining the transport stream parameter, the video conference controller can send to receiving terminal for digital television by Bidirectional HFC Network and carry the second control signal of above-mentioned transport stream parameter, so that receiving terminal for digital television is processed accordingly according to above-mentioned transport stream parameter.
306, the video code conversion server is processed the IMS conference medium stream that receives;
When the video code conversion server received the IMS conference medium stream (such as audio frequency, video information etc.) that is sended over by opposite end (as being videoconference server or one or more receiving terminal for digital television or other conference terminal etc.), the video code conversion server can become transport stream (such as TS over IP stream) with the IP header with the IMS conference medium circulation that receives according to above-mentioned IMS conference medium stream parameter.
307, the video code conversion server sends to edge modulator with above-mentioned transport stream with the IP header;
The video code conversion server sends to edge modulator by Bidirectional HFC Network with the transport stream with the IP header after its transcoding is processed, so that edge modulator is carried out follow-up processing.
308, edge modulator is processed the transport stream with the IP header that receives;
When edge modulator receives above-mentioned transport stream with the IP header (such as TS over IP stream), can process accordingly (such as multiplexing, modulation etc.) to it according to the transport stream parameter of appointment, and remove its IP header, form corresponding transport stream (such as TS stream).
Will be understood that edge modulator can be obtained above-mentioned transport stream parameter from the 4th control signal that the video conference controller sends, perhaps, also can obtain this transport stream parameter by after holding consultation with the frequency management equipment, is not construed as limiting herein.
309, the transport stream after edge modulator will be processed sends to receiving terminal for digital television;
Transport stream after edge modulator will be processed according to the IP header sends to corresponding receiving terminal for digital television.
Will be understood that, there is half-duplex channel (such as broadcast channel) between edge modulator and receiving terminal for digital television, edge modulator can send to corresponding receiving terminal for digital television with above-mentioned transport stream by this passage, thereby can save the bandwidth of HFC duplex channel.
310, receiving terminal for digital television receives corresponding transport stream, and it is resolved and plays;
Receiving terminal for digital television receives transport stream accordingly according to the transport stream parameter that gets access to, and the transport stream that receives is resolved and play.
Need to prove, above-mentioned control signal can be based on the control signal of RTSP or other agreement, above-mentioned receiving terminal for digital television can be set-top box, or, network protocol television, or, digital TV integrated machine, perhaps can also be other terminal that can realize above-mentioned video-meeting method, be not construed as limiting herein; In the video conference process, the audio/video information that above-mentioned receiving terminal for digital television can also extract connected camera and microphone sends, and for example can the audio/video information that extract be sent by RTP.
Be understandable that, above-mentioned video conference controller can be integrated in various switches, router or the receiving terminal for digital television, also can be independent equipment, it can provide service for a plurality of receiving terminal for digital television, video code conversion server or edge modulator simultaneously; Above-mentioned video code conversion server and edge modulator can be integrated in the equipment, perhaps, also can be split up into independent equipment, can provide service for a plurality of receiving terminal for digital television equally.
Therefore, the IMS conference medium that obtains in the video conference by the video conference controller in the embodiment of the invention flows parameter and transport stream parameter, and above-mentioned transport stream parameter sent to receiving terminal for digital television, so that receiving terminal for digital television can receive the transport stream that is sent by edge modulator accordingly according to above-mentioned transport stream parameter, and resolve and play, on the one hand, this video-meeting method has been expanded the application of receiving terminal for digital television, on the other hand, the transmission characteristic of bidirectional optical fiber-coaxial cable hfc plant can provide more reliable and more stable video conference for the user, simultaneously, in the embodiment of the invention, IMS conference medium stream sends to receiving terminal for digital television by edge modulator, has saved the bandwidth of HFC duplex channel.In sum, the video-meeting method based on Bidirectional HFC Network that the embodiment of the invention provides can solve in the video conferencing system effectively because the problem of the transmission bandwidth deficiency that multi-channel video or high-resolution video conference bring is provided, simultaneously, satisfied the higher demand of user to video conferencing system.
The below is described a kind of video conference control appliance of realizing above-mentioned video-meeting method, sees also Fig. 4, and a kind of video conference control appliance that the embodiment of the invention provides comprises:
The first acquiring unit 401 is used for obtaining IMS conference medium stream parameter;
Before the first acquiring unit 401 obtains IMS conference medium stream parameter, can by video conference signaling, in Bidirectional HFC Network, the parameter of receiving terminal for digital television pre-receiving or the pre-IMS conference medium stream (such as audio frequency, video information etc.) that sends be held consultation between receiving terminal for digital television and the videoconference server.
Under a kind of application scenarios, the first acquiring unit 401 can comprise:
Sub-acquiring unit and resolution unit;
Wherein, to can be used for obtaining receiving terminal for digital television and videoconference server be consultative conference Media Stream parameter and mutual video conference signaling to sub-acquiring unit;
Wherein, resolution unit can be used for above-mentioned video conference signaling is resolved, to obtain this IMS conference medium stream parameter.
Above-mentioned IMS conference medium stream parameter can comprise the IP address of source receiving terminal for digital television, the IP address of target number television receive terminal, protocol type, one or more in the port numbers of the port numbers of source receiving terminal for digital television and target number television receive terminal.
The first transmitting element 402 is used for sending the first control signal that carries above-mentioned IMS conference medium stream parameter to the video code conversion server;
After the first acquiring unit 401 obtains IMS conference medium stream parameter, the first transmitting element 402 can send the first control signal that carries above-mentioned IMS conference medium stream parameter to the video code conversion server, so that the video code conversion server flows parameter according to this IMS conference medium, its IMS conference medium circulation code that receives is sent to edge modulator for after the transport stream.
Owing to usually carry out the transmission of transport stream (such as TS stream) in the primary video meeting with fixing frequency, and in video conferencing system, the frequency point information of different video conferences is usually not identical, therefore, before video conference begins, need to determine the transport stream parameter (can comprise frequency, conferencing information etc.) of video conference.
The second transmitting element 404 is used for carrying the second control signal of above-mentioned transport stream parameter to the receiving terminal for digital television transmission.
After second acquisition unit 403 obtains the transport stream parameter, the second transmitting element 404 can send to receiving terminal for digital television by Bidirectional HFC Network and carry the second control signal of above-mentioned transport stream parameter, so that receiving terminal for digital television is according to this transport stream parameter, by the transport stream of Bidirectional HFC Network reception after edge modulator is processed, and resolve and play.
Under a kind of application scenarios, the video conference control appliance also can comprise: the 3rd transmitting element;
Wherein, the 3rd transmitting element is used in second acquisition unit 403 and obtains after the above-mentioned transport stream parameter, carry the 4th control signal of above-mentioned transport stream parameter to the edge modulator transmission, so that edge modulator is according to this transport stream parameter, after its transport stream with the IP header (such as TS over IP stream) that is sent by the video code conversion server that receives carried out respective handling, send to corresponding receiving terminal for digital television according to this IP header.
Need to prove, the video conference control appliance of present embodiment can be such as the video conference controller in the above-mentioned embodiment of the method, can be used for realizing whole technical schemes of said method embodiment, the function of its each functional module can be according to the method specific implementation among the said method embodiment, its specific implementation process can with reference to the associated description in above-described embodiment, repeat no more herein.
Therefore, the IMS conference medium that obtains respectively in the video conference by the first acquiring unit 401 and second acquisition unit 403 in the embodiment of the invention flows parameter and transport stream parameter, and by the first transmitting element 402 above-mentioned transport stream parameter is sent to receiving terminal for digital television, so that receiving terminal for digital television can receive the transport stream that is sent by edge modulator accordingly according to above-mentioned transport stream parameter, and resolve and play, on the one hand, expanded the application of receiving terminal for digital television by the video-meeting method of this video conference control appliance realization, on the other hand, the transmission characteristic of bidirectional optical fiber-coaxial cable hfc plant can provide more reliable and more stable video conference for the user, simultaneously, in the embodiment of the invention, IMS conference medium stream sends to receiving terminal for digital television by edge modulator, has saved the bandwidth of HFC duplex channel.In sum, the video-meeting method based on Bidirectional HFC Network that the video conference control appliance that provides by the embodiment of the invention is realized can solve in the video conferencing system effectively because the problem of the transmission bandwidth deficiency that multi-channel video or high-resolution video conference bring is provided, simultaneously, satisfied the higher demand of user to video conferencing system.
The below is described a kind of video conferencing system based on Bidirectional HFC Network provided by the invention, sees also Fig. 5, and this video conferencing system can comprise:
Wherein, video conference controller 501 can be used for obtaining IMS conference medium stream parameter; Send the first control signal that carries above-mentioned IMS conference medium stream parameter to video code conversion server 502, so that video code conversion server 502 flows parameter according to above-mentioned IMS conference medium, its IMS conference medium circulation code that receives is sent to edge modulator 503 for after the transport stream; Obtain the transport stream parameter; Carry the second control signal of above-mentioned transport stream parameter by Bidirectional HFC Network to the receiving terminal for digital television transmission, so that above-mentioned receiving terminal for digital television is according to above-mentioned transport stream parameter, by the transport stream of Bidirectional HFC Network reception after edge modulator 503 is processed, and resolve and play;
Further, after video conference controller 501 is used in and obtains the transport stream parameter, this transport stream parameter is sent to edge modulator 503.
Wherein, the video code conversion server can be used for according to above-mentioned IMS conference medium stream parameter the IMS conference medium that receives being circulated code for after the transport stream, sends to edge modulator 503 by Bidirectional HFC Network;
Wherein, edge modulator 503 can be used for sending through the transport stream after its processing to above-mentioned receiving terminal for digital television, so that above-mentioned receiving terminal for digital television receives above-mentioned transport stream according to above-mentioned transport stream parameter by Bidirectional HFC Network, and resolve and play.
Above-mentioned receiving terminal for digital television can be set-top box, or, network protocol television, or, digital TV integrated machine, perhaps other can realize the terminal of above-mentioned video-meeting method, is not construed as limiting herein.
The structure of the video conference controller 501 in the embodiment of the invention can be as shown in Figure 4 the video conference control appliance.
Need to prove, the video conference controller 501 of present embodiment can be such as the video conference controller in the above-mentioned embodiment of the method, video code conversion server 502 can be such as the video code conversion server in the above-mentioned embodiment of the method, edge modulator 503 can be such as the edge modulator in the above-mentioned embodiment of the method, it can be used for realizing whole technical schemes of said method embodiment, the function of its each functional module can be according to the method specific implementation among the said method embodiment, its specific implementation process can with reference to the associated description in above-described embodiment, repeat no more herein.
Therefore, the video conferencing system based on Bidirectional HFC Network in the embodiment of the invention flows parameter and transport stream parameter by the IMS conference medium that video conference controller 501 obtains in the video conference, and above-mentioned transport stream parameter sent to receiving terminal for digital television, so that receiving terminal for digital television can receive the transport stream that is sent by edge modulator 503 accordingly according to above-mentioned transport stream parameter, and resolve and play, on the one hand, this video conferencing system has been expanded the application of receiving terminal for digital television, on the other hand, the transmission characteristic of bidirectional optical fiber-coaxial cable hfc plant can provide more reliable and more stable video conference for the user, simultaneously, in the embodiment of the invention, IMS conference medium stream sends to receiving terminal for digital television by edge modulator, has saved the bandwidth of HFC duplex channel.In sum, the video conferencing system based on Bidirectional HFC Network that the embodiment of the invention provides can solve in the video conferencing system effectively because the problem of the transmission bandwidth deficiency that multi-channel video or high-resolution video conference bring is provided, simultaneously, satisfied the higher demand of user to video conferencing system.
One of ordinary skill in the art will appreciate that all or part of step that realizes in above-described embodiment method is to come the relevant hardware of instruction to finish by program, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be read-only memory, random asccess memory, disk or CD etc.
More than a kind of conference management method provided by the present invention and relevant apparatus and system are described in detail, for one of ordinary skill in the art, thought according to the embodiment of the invention, all will change in specific embodiments and applications, to sum up, this description should not be construed as limitation of the present invention.
Claims (8)
1. the video-meeting method based on Bidirectional HFC Network is characterized in that, comprising:
The video conference controller obtains IMS conference medium stream parameter;
The video conference controller sends the first control signal that carries described IMS conference medium stream parameter to the video code conversion server, so that described video code conversion server flows parameter according to described IMS conference medium, its IMS conference medium circulation code that receives is sent to edge modulator for after the transport stream;
The video conference controller obtains the transport stream parameter;
The video conference controller sends to edge modulator and carries the 4th control signal of described transport stream parameter, so that described edge modulator is according to described transport stream parameter, after its transport stream with the IP header that is sent by described video code conversion server that receives processed accordingly, send to corresponding receiving terminal for digital television according to described IP header;
The video conference controller sends to receiving terminal for digital television by bidirectional optical fiber-coaxial cable hfc plant and carries the second control signal of described transport stream parameter, so that described receiving terminal for digital television is according to described transport stream parameter, by the transport stream of Bidirectional HFC Network reception after edge modulator is processed, and resolve and play.
2. method according to claim 1 is characterized in that, described video conference controller obtains IMS conference medium stream parameter and comprises:
It is consultative conference Media Stream parameter and mutual video conference signaling that the video conference controller obtains described receiving terminal for digital television and videoconference server;
Described video conference signaling is resolved, to obtain described IMS conference medium stream parameter.
3. method according to claim 1 is characterized in that, described video conference controller obtains IMS conference medium stream parameter and comprises:
The video conference controller receives the 3rd control signal that carries IMS conference medium stream parameter that described receiving terminal for digital television sends, and obtains described IMS conference medium stream parameter from described the 3rd control signal.
4. each described method in 3 according to claim 1 is characterized in that,
Described IMS conference medium stream parameter comprises one or more of following information:
The iso-ip Internetworking protocol ISO-IP IP address of source receiving terminal for digital television, the IP address of target number television receive terminal, protocol type, the port numbers of the port numbers of source receiving terminal for digital television and target number television receive terminal.
5. each described method in 3 according to claim 1 is characterized in that,
Described receiving terminal for digital television is specially:
Set-top box, or, network protocol television, or, digital TV integrated machine.
6. a video conference control appliance is characterized in that, comprising:
The first acquiring unit is used for obtaining IMS conference medium stream parameter;
The first transmitting element, be used for sending the first control signal that carries described IMS conference medium stream parameter to the video code conversion server, so that described video code conversion server flows parameter according to described IMS conference medium, its IMS conference medium circulation code that receives is sent to edge modulator for after the transport stream;
Second acquisition unit is used for obtaining the transport stream parameter;
The second transmitting element, be used for carrying the second control signal of described transport stream parameter by Bidirectional HFC Network to the receiving terminal for digital television transmission, so that described receiving terminal for digital television is according to described transport stream parameter, by the transport stream of Bidirectional HFC Network reception after edge modulator is processed, and resolve and play;
The 3rd transmitting element, be used for carrying the 4th control signal of described transport stream parameter to the edge modulator transmission, so that described edge modulator is according to described transport stream parameter, after its transport stream with the IP header that is sent by described video code conversion server that receives processed accordingly, send to corresponding receiving terminal for digital television according to described IP header.
7. equipment according to claim 6 is characterized in that, described the first acquiring unit comprises:
Sub-acquiring unit is used for obtaining described receiving terminal for digital television and videoconference server and is consultative conference Media Stream parameter and mutual video conference signaling;
Resolution unit is used for described video conference signaling is resolved, to obtain described IMS conference medium stream parameter.
8. the video conferencing system based on Bidirectional HFC Network is characterized in that, comprising:
The video conference controller, video code conversion server, edge modulator;
Described video conference controller is used for obtaining IMS conference medium stream parameter; Send the first control signal that carries described IMS conference medium stream parameter to the video code conversion server, so that described video code conversion server flows parameter according to described IMS conference medium, its IMS conference medium circulation code that receives is sent to edge modulator for after the transport stream; Obtain the transport stream parameter; Carry the second control signal of described transport stream parameter by Bidirectional HFC Network to the receiving terminal for digital television transmission, so that described receiving terminal for digital television is according to described transport stream parameter, by the transport stream of Bidirectional HFC Network reception after edge modulator is processed, and resolve and play; The video conference controller sends to edge modulator and carries the 4th control signal of described transport stream parameter, so that described edge modulator is according to described transport stream parameter, after its transport stream with the IP header that is sent by described video code conversion server that receives processed accordingly, send to corresponding receiving terminal for digital television according to described IP header;
Described video code conversion server is used for flowing parameter according to described IMS conference medium the IMS conference medium circulation code that receives is sent to edge modulator for after the transport stream;
Described edge modulator is used for sending through the transport stream after its processing to described receiving terminal for digital television, so that described receiving terminal for digital television receives described transport stream according to described transport stream parameter by Bidirectional HFC Network, and resolves and plays.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010503269 CN101945119B (en) | 2010-09-30 | 2010-09-30 | Video session method based on two-way HFC (Hybrid Fiber Coax) network as well as associated equipment and system |
| PCT/CN2011/070660 WO2012041028A1 (en) | 2010-09-30 | 2011-01-26 | Method, correlative equipment and system for bidirectional hybrid fiber-coaxial (hfc) network based video conference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010503269 CN101945119B (en) | 2010-09-30 | 2010-09-30 | Video session method based on two-way HFC (Hybrid Fiber Coax) network as well as associated equipment and system |
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| Publication Number | Publication Date |
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| CN101945119A CN101945119A (en) | 2011-01-12 |
| CN101945119B true CN101945119B (en) | 2013-04-24 |
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| CN 201010503269 Expired - Fee Related CN101945119B (en) | 2010-09-30 | 2010-09-30 | Video session method based on two-way HFC (Hybrid Fiber Coax) network as well as associated equipment and system |
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| WO (1) | WO2012041028A1 (en) |
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| CN101945119B (en) * | 2010-09-30 | 2013-04-24 | 深圳市同洲电子股份有限公司 | Video session method based on two-way HFC (Hybrid Fiber Coax) network as well as associated equipment and system |
| CN102938780A (en) * | 2012-10-26 | 2013-02-20 | 浪潮(山东)电子信息有限公司 | Video telephone system and method of cable digital television network based on cloud computing platform |
| CN111147859A (en) * | 2019-12-31 | 2020-05-12 | 视联动力信息技术股份有限公司 | Video processing method and device |
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| US6965616B1 (en) * | 1998-10-30 | 2005-11-15 | Broadcom Corporation | Network data transmission synchronization system and method |
| CN1849825A (en) * | 2003-03-13 | 2006-10-18 | 泰拉扬信息***公司 | Thin docsis in-band management for interactive hfc service delivery |
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| CN1878109A (en) * | 2006-07-06 | 2006-12-13 | 魏强 | HFC network high-frequency broadband access technique |
| US20080144642A1 (en) * | 2006-12-19 | 2008-06-19 | Shaowen Song | Residential gateway for ethernet based metro networks and a global hierarchical ethernet addressing system |
| CN100448213C (en) * | 2007-01-17 | 2008-12-31 | 陈勇 | HFC network wideband access system based on MoCA technology |
| CN101272476A (en) * | 2007-03-23 | 2008-09-24 | 北京东方广视科技有限责任公司 | Method for implementing edge broadcast of cable television VOD system |
| CN101710960A (en) * | 2009-08-06 | 2010-05-19 | 中兴通讯股份有限公司 | Method and system for realizing video conference |
| CN101945119B (en) * | 2010-09-30 | 2013-04-24 | 深圳市同洲电子股份有限公司 | Video session method based on two-way HFC (Hybrid Fiber Coax) network as well as associated equipment and system |
-
2010
- 2010-09-30 CN CN 201010503269 patent/CN101945119B/en not_active Expired - Fee Related
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- 2011-01-26 WO PCT/CN2011/070660 patent/WO2012041028A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6965616B1 (en) * | 1998-10-30 | 2005-11-15 | Broadcom Corporation | Network data transmission synchronization system and method |
| CN1849825A (en) * | 2003-03-13 | 2006-10-18 | 泰拉扬信息***公司 | Thin docsis in-band management for interactive hfc service delivery |
| CN101212647A (en) * | 2007-07-18 | 2008-07-02 | 中国科学技术大学 | Two-way HFC network based stream media service implementation method and device |
| CN101123696A (en) * | 2007-08-27 | 2008-02-13 | 华为技术有限公司 | An update method, system and device for digital TV STB configuration |
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| WO2012041028A1 (en) | 2012-04-05 |
| CN101945119A (en) | 2011-01-12 |
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