CN102594784A - Internet protocol (IP)-based teleconference service method and system - Google Patents
Internet protocol (IP)-based teleconference service method and system Download PDFInfo
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Abstract
The invention discloses an internet protocol (IP)-based teleconference service method. The method comprises the following steps that: a, one or more users register to a conference platform; b, one of the users requests for a teleconference with at least two other users towards the conference platform; c, the conference platform analyzes the media ability of the registered users and selects the user with enough media ability as the host of the teleconference; and d, after the command of the conference platform is received, the user selected as the host of the teleconference establishes the teleconference. The invention also relates to a system for realizing the method. The method and the system can provide a teleconference service by using a media resource of the user under the condition that the teleconference platform does not have the media resource.
Description
Technical field
The present invention relates to IP (Internet protocol) videoconference technology, especially, relate to and a kind ofly providing the center not have the method and system of the conference call service of media resource on the internet.
Background technology
Traditionally, in PSTN or GSM telephone network based on voice call, because the limitation of terminal capability and user's use habit, the user utilizes the terminal to receive the conference call service that centralized videoconference center is provided usually.In this case, it is inner that media resource concentrates on the videoconference centring system, and the user can only pass through system of Inbound Calls conference centre, and uses the centralized media resource of this internal system to participate in videoconference.User's terminal only is used for sending or receiving the voice signal of videoconference, and the multimedia of videoconference is handled and control all is to be undertaken by this centralized media resource.
Along with development of internet technology; Under internet, WLAN or mobile Internet environment; The terminal that is used for call is changed the smart machine (for example being personal computer, PDA, mobile phone, panel computer etc.) with computing capability into by common landline telephone and traditional mobile phone; It not only possesses delivery value, and possibly possess multimedia interactive ability and data computation ability.This development makes that breaking away from the videoconference center of concentrating becomes possibility.Some even a plurality of users that participate in videoconference can be used for the media resource contribution of self to bear meeting organizer's function, and wherein media resource comprises and is used to bear the necessary data computing capability that IMS conference medium is handled and meeting is controlled.
If can make the user who participates in a conference but not the organizer of videoconference is served as at the videoconference center, will save the construction cost and the maintenance cost of black phone conference centre undoubtedly.Owing to the Business Stream of videoconference is not handled and is controlled; The videoconference center can not have media resource; Only before meeting is initiated to will replacing its adaptability of bearing the functional user of conference organisations to judge, so the operation maintenance at this videoconference center becomes much simple.Simultaneously; Owing to dynamically select optimal user to hold videoconference; Therefore can maximally utilise the real-time resource in the network, avoid the wasting of resources, and service quality and high reliability that the analysis and the selection of user media ability guaranteed videoconference.
Summary of the invention
Must concentrate the construction of carrying out media resource and the problem of management based on the TeleConference Bridge of telecommunications network in order to solve; The invention provides a kind of method; The user's who uses TeleConference Bridge individual media resource is shared, dispatched and manage as the IMS conference medium resource; Thereby do not have at the center under the situation of media resource, conference call service is provided.
According to an aspect of the present invention, proposed a kind of method that IP-based conference call service is provided, this method may further comprise the steps:
The one or more users of a register to the meeting platform;
One of b user carries out videoconference to the meeting platform request with at least two other users;
C meeting platform is analyzed registered user's media capability, and selected user with enough media capability is as videoconference hosting side; And
After d received the order of meeting platform, the user who is selected as videoconference hosting side set up videoconference.
According to another aspect of the present invention, proposed a kind of system that is used to provide IP-based conference call service, this system comprises meeting platform and a plurality of user, wherein:
A plurality of users pass through IP network and register to the meeting platform; One of user carries out videoconference to the meeting platform request with at least two other users; The meeting platform is analyzed registered user's media capability, and selected user with enough media capability is as videoconference hosting side; After receiving the order of meeting platform, the user who is selected as videoconference hosting side sets up videoconference.
Compared with prior art, conference call service of the present invention provides method and system to have the following advantages:
Dispense with telephone meeting platform/central service media resource, thus the construction cost that is used for platform or center reduced.
Selection has the available subscribers of enough media capability and bears conference organisations' function, utilizes resource in the network in real time, avoids the wasting of resources, and obtains better service quality and load balance easily.
Little to system's change, the user who participates in videoconference only need be to platform accredited media ability when starting, if be not selected as videoconference hosting side, then its process and traditional approach of participating in videoconference is as broad as long.
Description of drawings
Come in conjunction with the drawings can obtain better understanding to principle of the present invention, feature and advantage with reference to hereinafter to the description of specific embodiment.Identical or corresponding label is represented corresponding or identical part in the accompanying drawing:
Fig. 1 is used to provide the center not have the flow chart of the method for media resource videoconference according to of the present invention;
Fig. 2 is according to an embodiment of the invention, is used to provide the center not have the signal timing diagram of media resource videoconference;
Fig. 3 is the schematic diagram according to meeting platform of the present invention;
Fig. 4 is the schematic block diagram according to the subscriber equipment as meeting presiding side of the present invention;
Fig. 5 is the schematic block diagram according to the subscriber equipment as conferenced party of the present invention; And
Fig. 6 is according to an embodiment of the invention, provides the center not have the sketch map of the system of media resource videoconference.
Embodiment
As stated, purport of the present invention provides under a kind of situation of not having media resource at the videoconference center, utilizes user's media capability to realize the method and the corresponding system of videoconference.Explain in more detail below in conjunction with the accompanying drawing specific embodiments of the invention.
Fig. 1 shows the flow chart that provides the center not have the method for media resource videoconference according to of the present invention.In step 101, method begins.In step 102, one or more users register to the meeting platform.For example, when the user started, it at first signed in to the meeting platform.In login process, the user sends basic log-on message such as ID, password, IP address to the meeting platform.The meeting platform carries out authentication to this user, if unauthorized user then points out it to register or point out the refusal login.If authorized user is then permitted its login.
In a preferred embodiment of the invention, the user can also send the media capability log-on message to the meeting platform when registration.That is; The user can register the media capability that self had at platform, this media capability for example comprises that the terminal installs parameters such as client software version, hard-disk capacity, CPU processing speed, cache size, computing capability, the network bandwidth, network jitter, network response time.Be appreciated that media capability has determined whether a user can set up videoconference as the videoconference organizer.For example, if be used to set up the ip voice videoconference, adopting G.729 under the coding situation, needing at least, the 30Kbps bandwidth guarantees speech quality preferably.If be used to set up the IP video conference call, then need the bandwidth of 2M could guarantee the smooth transmission of video flowing at least.In addition, user's computing capability also is that vital, stronger computing capability makes it possible to carry out the more complicated multimedia processing of multitone video source.
Be not the media capability that each user has the videoconference of setting up, for example some IP phone machine, WMG or plain old telephone only have the basic function of participating in videoconference, and do not have the function of the videoconference of setting up.At this moment, this type user still can add participant's tabulation that the meeting platform receives or directly generate, but can not be chosen to be the hosting side of meeting.
Meeting platform maintenance customer media capability database, and after at every turn receiving the media capability information that the user sends is set up or is upgraded corresponding user media ability clauses and subclauses, calls for analysis module in the subsequent process.As previously mentioned, media information can be when for example the user registers or when replying from the inquiry of platform, to be sent by the user.
In step 103, a user sets up videoconference to meeting platform request and other users.This user submits request for conference to the videoconference platform, and this request for conference for example comprises information such as meeting title, meeting start time, meeting duration, conference member.This request for conference can be clear and definite, for example comprises concrete participant's list; Also can only comprise partial information, for example, clearly do not specify expectation and which user to carry out videoconference, but request carried out videoconference with a certain type of user (such as certain member of technical support department).At this moment, need the meeting platform, confirm concrete participant's tabulation according to current online user.
In step 104, the media capability of meeting platform analysis user.According to the request for conference that aforementioned user submits to, meeting platform inquiring user media capability database, the media capability information of acquisition conference member.The meeting platform is analyzed these users' media capability, with the hosting side of selected this videoconference.Preferably, can generate the media capability threshold value according to requirements such as active conference content, meeting duration participant side's numbers.This threshold value for example can be the weighted sum of each item media capability relevant parameter.For example, for long-term meeting, because the requirement of encoding and decoding load and buffer memory capacity, internal memory or hard-disk capacity parameter can be distributed higher weight; For the more meeting of acceding party's number, because the requirement of total amount of bandwidth, the network bandwidth can distribute higher weight; And, needing the response time faster for the less meeting of the number of participant, network jitter and operating lag etc. can distribute higher weight.Only reach the user of this media capability threshold value, just have the qualification that is chosen to be videoconference hosting side.
In a preferred embodiment of the invention, the meeting platform to its current media capability of the related user inquiring of request for conference, is analyzed more accurately and is selected so that make after the videoconference request that receives the user.For example; Though the user provides media capability information when registering basically; But when request for conference proposes; The part of user's media capability just is being used to carry out other calculation tasks, and for example the part bandwidth is used for network download, is perhaps utilizing internal memory and CPU to carry out intensive computings such as Drawing Design.If the basic media capability that once registered with the user this moment is the selection that videoconference hosting side is carried out on the basis, selected user can't accomplish the task of foundation owing to other loads problem possibly appear.In addition; Possibly not be that all participants have submitted the media capability log-on message in advance to; If promptly do not comprise all participants' respective entries in the user media capability database, this moment, the meeting platform maybe also need be to its current media ability of relevant user's query.
In this embodiment, whether the meeting platform can the inquiry user be ready to accept to set up the task of videoconference in the media capability inquiry.If obtain positive reply, the meeting platform will be analyzed its media capability.If what obtain is to negate to answer, then the meeting platform will be skipped the media capability analysis to this user automatically.
Then, in step 105, the meeting platform is judged which registered user with respective media ability of existence.If the user itself who mentions request for conference promptly has the media capability of the videoconference of setting up, then method advances to step 106, and the meeting platform sends order to this user, makes it set up videoconference.If mentioning the user of request for conference does not have corresponding media capability or has other more excellent users of media capability by comparison; Then method advances to step 110, and whether the meeting platform is initiated and can be set up the inquiry of videoconference or directly (carry out inquiry if whether be ready to receive an assignment with regard to it before) order of setting up videoconference to its transmission by it to intending selected user.
In a preferred embodiment of the invention, the meeting platform can sort to it according to user's media capability, and inquires successively since the user of first tagmeme whether it can set up said videoconference, till having the user to accept this task.And if if be chosen the user and refuse this meeting and set up and seek the opinion of or have no the registered user to have this media capability, then the meeting platform returns failure result to the request user.Certainly, with statistical law, this situation is less appearance in present network technical development context, and therefore this step is not shown separately in flow chart.
In step 108/111, the user who is chosen to be videoconference hosting side sends invitation to the user of other participants, the calling of other user answer videoconference hosting sides.In step 109/111, the multiparty teleconferencing call setup is accomplished.As a preferred example, in videoconference is carried out, hosting side as the meeting home court with the multicast mode to each participant user transferring voice and/or video data signal.Each participant user is to hosting side user unicast transmission voice and/or video data signal.
At last, in step 113, method finishes.
Fig. 1 only shows an embodiment who sets up the method for videoconference under not having media resource at the center of the present invention.Process is set up in actual meeting can comprise more or step still less.
Fig. 2 shows according to of the present invention and is used to provide the center not have the signal timing diagram of media resource videoconference.As shown in the figure, signal flow circulates between user A 400, user B 500b, user C 500c and meeting platform 300.Suppose that user A 400 and user B 500b all carry out the media capability registration at meeting platform 300.Shown in signal flow 1, user A 400 sends the INVITE request to user B 500b, and call is set up in request with it.Shown in signal flow 2, user B 500b sends 180 Ringing rings response to user A 400, and expression successfully receives the INVITE request.Shown in signal flow 3, reply as what INVITE was asked, user B 500b sends 200 OK to user A 400, and the INVITE request is successfully accepted and is handled in expression.Shown in signal flow 4, user A 400 sends ACK to user B 500b and confirms, confirms to have received response message 200 OK to INVITE of user B 500b.Shown in signal flow 5, user A 400 and user B 500b set up Media Session (Multimedia session), and both sides get into speech phase.
Then, shown in signal flow 6, user A 400 sends a request message to meeting platform 300, and the expression expectation is set up videoconference with user B 500b and user C 500c.Shown in signal flow 7, the media capability of 300 pairs of registration terminals of meeting platform is analyzed.For example, meeting platform 300 is according to the Query Result to the user media capability database, and selected user A 400 is as videoconference hosting side.Shown in signal flow 8, the calling that meeting platform 300 order user A 400 initiate user C 500c.
Shown in signal flow 9, user A 400 sends the INVITE request to user C 500c, asks it to add the call of access customer A 400 and user B 500b.Shown in signal flow 10, user C 500c sends 180 Ringing rings response to user A400, and expression successfully receives the INVITE request.Shown in signal flow 11, reply as what INVITE was asked, user C 500c sends 200 OK to user A 400, and the INVITE request is successfully accepted and is handled in expression.Shown in signal flow 12, user A 400 sends ACK to user C 500c and confirms, confirms to have received the response message 200OK of user C 500c to the INVITE request.Shown in signal flow 13, user A 400, user B 500b and user C 500c set up Media Session (Multimedia session), the tripartite speech phase that gets into.In other words, shown in signal flow 14, user A 400 sets up the videoconference that comprises user A 400, user B 500b, user C 500c.
Next, shown in signal flow 15, user C 500c sends BYE information to the user A 400 as meeting presiding side, and this videoconference is withdrawed from expression.Shown in signal flow 16, user A 400 sends 200 OK to user C 500c, and expression is accepted this and withdrawed from request, and disconnection is connected with the calling of user C 500c.Shown in signal flow 17, user B 500b sends BYE information to user A 400, and videoconference is withdrawed from expression.Shown in signal flow 18, user A 400 sends 200 OK to user B 500b, and expression is accepted this and withdrawed from request, and disconnection is connected with the calling of user B 500b.So far, user A400 this videoconference of being set up finishes.
Fig. 2 only is that of the signal sequence of setting up videoconference under being used for not having the situation of media resource at the center of the present invention the most simply realizes example.In fact, it can not be the user that initial request is set up videoconference that the selected videoconference of meeting platform is presided over, but other users with abundant media capability that register above that.In addition, videoconference can be to carry out between more in many ways, and is not only tripartite videoconference.
Fig. 3 shows the schematic diagram according to meeting platform 300 of the present invention.As shown in the figure, this meeting platform 300 comprises communication module 301, Registering modules 302 and analysis module 303.Communication module 301 is used to receive the authentication request of user A 400, user B 500b transmission, basic log-on message, media capability log-on message, meeting foundation request etc. and is used for sending authenticating result, order etc. to user A 400, user B 500b.Registering modules 302 maintenance customer's media capability databases 304; When receiving the user media ability log-on message of communication module 301 forwardings; Media capability information is added in the respective entries of user media capability database 304, perhaps existing clauses and subclauses are upgraded.Analysis module 303 is set up request from the meeting that communication module 301 receives the user; And be used for retrieval user media capability database 304; Whether the media capability of analyzing a plurality of users of candidate reaches the media capability threshold value of setting up the videoconference of asking, and selection can be competent at the optimal user of this foundation function as meeting presiding side.Then, will select the result and pass to communication module 301, send to the user by it.Preferably, meeting platform 300 can also comprise the authentication module (not shown), is used for the user is carried out authentication, gets into TeleConference Bridge to avoid unauthorized user.
Fig. 4 is the structured flowchart according to the user as meeting presiding side of the present invention.As shown in the figure, the side of hosting user 400 comprises audio frequency and video input interface 401, audio and video output interface 402, audio/video coding device 403, device for decoding audio and video 404a, 404b, network interface 405 and multimedia processing apparatus 406.
Wherein, audio frequency and video input interface 401 receives local audio-video signal from the audio-video collection equipment of for example microphone, camera and so on, and it is passed to multimedia processing apparatus 406.Network interface 405 receives the audio and video data streams that other users send into via IP network, and it is passed to device for decoding audio and video 404, therein each road audio and video data streams is decoded, and generates corresponding audio-video signal.This audio-video signal also is provided for multimedia processing apparatus 406.In multimedia processing apparatus 406; The local audio-video signal that receives through audio frequency and video input interface 401 and other user's audio-video signals of decoding through device for decoding audio and video 404 are carried out obtaining final audio-video signal after multimedia is handled; Final audio-video signal is divided into two-way; Display devices such as public address equipments such as a tunnel is provided to audio and video output interface 402, the confession loud speaker and display are play the local user; Another road offers audio/video coding device 403, and by it audio-video signal being encoded obtains being suitable for the audio and video data streams of IP network transmission, utilizes network interface 405 that it is transferred to other users of participant.Being appreciated that multimedia is handled for example comprises and the audio mixing of audio frequency is handled and many pictures stack of video etc. handled etc.
Fig. 5 is the structured flowchart according to the user as conferenced party of the present invention.As shown in the figure, participant user 500 comprises audio frequency and video input interface 501, audio and video output interface 502, audio/video coding device 503, device for decoding audio and video 504 and network interface 505.
Wherein, audio frequency and video input interface 501 receives local audio-video signal from the audio-video collection equipment of for example microphone, camera and so on, and this audio-video signal is passed to audio/video coding device 503.In audio/video coding device 503, this audio-video signal is encoded, obtain to be suitable for the audio and video data streams of IP network transmission.This audio and video data streams is offered network interface 505, be transferred to hosting side user through IP network.Participant user 500 receives hosting side users via network interface 505 and transmits the audio and video data streams of coming in via IP network, and it is forwarded to device for decoding audio and video 504, therein this audio and video data streams is decoded, and generates corresponding audio-video signal.Display devices such as public address equipments such as this audio-video signal is provided for audio and video output interface 502, the confession loud speaker and display are play the local user.
Fig. 6 is the sketch map that the system configuration of the videoconference that the center do not have media resource is provided according to of the present invention.Shown in unidirectional solid line among the figure, user A 400, user B 500b, user C 500c and user D 500d carry out the media capability registration to meeting platform 300.The database that meeting platform 300 is safeguarded about the user media ability.Sometime, shown in unidirectional dotted line among the figure, user B sets up videoconference to 300 requests of meeting platform with other three users.Meeting platform 300 is analyzed these four media capability that the user registered, and definite user A 400 is as the organizer of videoconference.Unidirectional adding shown in the heavy line in figure,, meeting platform 300 orders it to set up cubic videoconference to user A 400 transmitting control commands.Next, shown in two-way dotted line among the figure, the videoconference between user A 400 foundation and user B500b, user C 500c and the user D 500d establishes a communications link with other three users respectively.Audio frequency and video Business Stream between the user who respectively attends a meeting among the figure, between user and the meeting platform or signaling-information all pass through IP network 200 transmission.
More than the preferred embodiments of the present invention have been carried out nonrestrictive description.It will be appreciated by those skilled in the art that under the situation that does not break away from design of the present invention and scope, can make many other changes and remodeling the present invention.Should be appreciated that to the invention is not restricted to described specific implementations, scope of the present invention only is defined by the following claims.
Claims (18)
1. method that IP-based conference call service is provided said method comprising the steps of:
The one or more users of a register to the meeting platform;
One of said user of b carries out videoconference to said meeting platform request with at least two other users;
The said meeting platform of c is analyzed registered user's media capability, and selected user with enough media capability is as videoconference hosting side; And
After d received the order of said meeting platform, the user who is selected as videoconference hosting side set up said videoconference.
2. method according to claim 1, wherein in said step a, said one or more users also carry out the media capability registration to said meeting platform.
3. method according to claim 1 wherein also comprises before the said step c, said meeting platform inquiry the current media capability of the related user of the videoconference of asking.
4. according to each described method among the claim 1-3, wherein media capability comprises with the next item down or multinomial: the network bandwidth, network jitter, device software or Hardware configuration.
5. according to each described method among the claim 1-3, wherein said step c comprises, according to said videoconference request, sets the essential media capability threshold value as videoconference hosting side; And reach in institute's accredited media ability and to select videoconference hosting side among the user of said threshold value.
6. method according to claim 5, wherein said threshold value are or the weighted sums of multinomial media capability that said one or more user registers.
7. according to each described method among the claim 1-3; Wherein said step c comprises; According to media capability the user is sorted, inquire successively whether the optimum user of media capability can set up said videoconference, until the order that has the user to accept to set up said videoconference.
8. system that is used to provide IP-based conference call service, said system comprises meeting platform and a plurality of user, wherein:
Said a plurality of user passes through IP network and registers to said meeting platform; One of said user carries out videoconference to said meeting platform request with at least two other users; Said meeting platform is analyzed registered user's media capability, and selected user with enough media capability is as videoconference hosting side; After receiving the order of said meeting platform, the user who is selected as videoconference hosting side sets up said videoconference.
9. system according to claim 8, wherein said user is also carrying out the media capability registration to said meeting platform when said meeting platform is registered.
10. system according to claim 8, wherein said meeting platform before the media capability of analysis user, the inquiry the current media capability of the related user of the videoconference of asking.
11. each described system according to Claim 8-10, wherein said media capability comprises with the next item down or multinomial: the network bandwidth, network jitter, device software or Hardware configuration.
12. each described system according to Claim 8-10, wherein said meeting platform is set the essential media capability threshold value as videoconference hosting side according to said user's videoconference request; And reach in institute's accredited media ability and to select videoconference hosting side among the user of said threshold value.
One or the weighted sum of multinomial media capability that 13. system according to claim 12, wherein said threshold value are said one or more users to be registered.
14. each described system according to Claim 8-10; Wherein said meeting platform sorts to the user according to media capability; Inquire successively whether the optimum user of media capability can set up said videoconference, until the order that has the user to accept to set up said videoconference.
15. system according to claim 8, wherein said meeting platform comprises:
Communication module is used for communicating with said user;
Registering modules is used for to said user the media capability registration service being provided; And
Analysis module is used to analyze the user media ability of registration.
16. system according to claim 8, wherein said user's equipment comprises audio frequency and video input interface, audio and video output interface, network interface, device for decoding audio and video and audio/video coding device.
17. system according to claim 16, wherein the equipment as the user of videoconference hosting side also comprises multimedia processing apparatus, is used for each the audio frequency and video source, road and the video source of videoconference are carried out mixed processing.
18. system according to claim 8, wherein the equipment as the user of videoconference hosting side is personal computer, PDA, mobile phone or panel computer.
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| CN106331396B (en) * | 2015-06-15 | 2020-08-14 | 深圳市潮流网络技术有限公司 | Multimedia processing method and system for telephone conference |
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