CN106534759A

CN106534759A - Method and device for accessing multimedia conference system

Info

Publication number: CN106534759A
Application number: CN201510571582.3A
Authority: CN
Inventors: 周悦喜
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2015-09-09
Filing date: 2015-09-09
Publication date: 2017-03-22
Also published as: WO2016180189A1

Abstract

The invention provides a method and a device for accessing a multimedia conference system. The method comprises the steps of receiving a call request sent by a terminal, wherein the call request carries a conference number of the multimedia conference system which is requested by the terminal to access; and in response to the call request, dynamically allocating a MCU (Multi Control Unit) corresponding to the terminal for the terminal, wherein the MCU is used for accessing the terminal to the multimedia conference system indicated by the conference number. Through the invention, the problem of relatively low access efficiency due to a fact that the terminal is accessed to the multimedia conference system via existing MCU cascade relations in related technologies is solved; and thus, the effect of improving the flexibility of the accessed multimedia conference system is realized.

Description

Access the method and device of multimedia conference system

Technical field

The present invention relates to the communications field, in particular to a kind of method and device for accessing multimedia conference system.

Background technology

Traditional video conferencing system is typically required reservation, such as in conference system preengages once example every predetermined period Meeting, generally requires to specify terminal of attending a meeting, and preengages the conferencing resource for specifying the time period.That is, the end of conference participation End can only be the terminal for having preassigned, and cannot arbitrarily add or delete any one terminal；Further, above-mentioned video Conference system also needs to by way of preengaging in advance reserve conferencing resource.And during actual meeting, video council The actual terminal number for accessing of conference system is likely to what is changed, if the conferencing resource that video conferencing system takes is protected always Hold constant, the problem that necessarily conferencing resource utilization rate will be caused low, for example, if reserve meeting money according to maximum capacity Source, will necessarily cause the wasting of resources；If do not reserve or reserve less conferencing resource, will be unable to meet meeting demand Access new terminal.

Further, mode commonly used in the prior art is by terminal by the multipoint control unit MCU with cascade connection Video conferencing system is accessed, wherein, as the cascade connection of MCU pre-sets, thus, it is necessary to will control Signaling is repeatedly forwarded, and terminal could be accessed video conferencing system, so will not only be caused to increase and be accessed time delay, drop Low access efficiency, and the dynamic adjustment that cannot realize accessing terminal；Further, since existing MCU is multi-stage cascade, Thus, when adjustment accesses the terminal of video conferencing system, the motility that also necessarily adjustment will be affected to access.

For the problems referred to above, prior art not yet proposes effective solution.

The content of the invention

The invention provides a kind of method and device for accessing multimedia conference system, at least to solve using in correlation technique Terminal is accessed by the caused relatively low problem of access efficiency of multimedia conference system institute by existing MCU cascade connections.

According to an aspect of the invention, there is provided a kind of method for accessing multimedia conference system, including：Receiving terminal The call request of transmission, wherein, carries the multimedia conference system that above-mentioned terminal request is accessed in above-mentioned call request Conference number；It is above-mentioned terminal dynamically distributes multipoint control unit MCU corresponding with above-mentioned terminal to respond above-mentioned call request, Wherein, above-mentioned MCU is for above-mentioned terminal to be accessed the above-mentioned multimedia conference system indicated by above-mentioned conference number.

Alternatively, it is above-mentioned terminal dynamically distributes above-mentioned multiparty control list corresponding with above-mentioned terminal to respond above-mentioned call request First MCU includes：The position that above-mentioned terminal is located is obtained in real time；Select to be less than or equal to predetermined threshold with the distance of above-mentioned position MCU；Physical address with the distance of above-mentioned position less than or equal to the above-mentioned MCU of predetermined threshold is sent to into above-mentioned terminal.

Alternatively, the call request that above-mentioned receiving terminal sends includes：Registrar is received according to the call routing for prestoring The solicited message of the above-mentioned call request for carrying above-mentioned terminal of table forwarding, wherein, above-mentioned call routing table includes State the corresponding relation of conference number and call routing.

Alternatively, above-mentioned call request is being responded for above-mentioned terminal dynamically distributes multipoint control unit corresponding with above-mentioned terminal After MCU, also include：Judge whether the multimedia conference system indicated by above-mentioned conference number has built up；If judging Go out above-mentioned multimedia conference system it has been established that above-mentioned terminal is accessed above-mentioned multimedia meeting by the above-mentioned MCU of distribution then Conference system；If judging, above-mentioned multimedia conference system does not also set up, and sets up above-mentioned multimedia conference system.

Alternatively, above-mentioned terminal is accessed above-mentioned multimedia conference system by the above-mentioned MCU of distribution includes：Obtain above-mentioned The capability requests that terminal sends, wherein, aforementioned capabilities ask to be configured to create and above-mentioned end for above-mentioned terminal for request Hold the MCU of corresponding terminal multi-media resource；The media code stream that above-mentioned terminal sends is transmitted by above-mentioned MCU.

Alternatively, after above-mentioned terminal is accessed above-mentioned multimedia conference system by the above-mentioned MCU of distribution, also include： Receive the hang-up request for terminating calling that above-mentioned terminal sends；Respond above-mentioned hang-up request and discharge the above-mentioned of above-mentioned terminal Terminal multi-media resource.

Alternatively, it is above-mentioned to set up above-mentioned multimedia conference system and include：Distributing above-mentioned multimedia conference system carries out multimedia Meeting multimedia resource required during meeting；Above-mentioned multimedia conference system is set up according to above-mentioned meeting multimedia resource.

Alternatively, after above-mentioned terminal is accessed above-mentioned multimedia conference system by the above-mentioned MCU of distribution, also include： Receive for indicating to terminate the configured information of above-mentioned multimedia conferencing；Respond above-mentioned configured information and discharge above-mentioned meeting multimedia Resource.

Alternatively, after above-mentioned terminal is accessed above-mentioned multimedia conference system by the above-mentioned MCU of distribution, also include： The media code stream that above-mentioned terminal sends is received, wherein, above-mentioned media code stream includes the multi-medium data after encapsulating, above-mentioned many Media data includes at least one of：Video, audio frequency；Above-mentioned media code stream is forwarded by above-mentioned multimedia conference system.

According to a further aspect in the invention, there is provided it is a kind of access multimedia conference system device, including：First connects Unit is received, for the call request that receiving terminal sends, wherein, above-mentioned terminal request is carried in above-mentioned call request and is connect The conference number of the multimedia conference system for entering；Distribution access unit, moves for above-mentioned terminal for responding above-mentioned call request State distributes multipoint control unit MCU corresponding with above-mentioned terminal, and wherein, above-mentioned MCU is above-mentioned for above-mentioned terminal is accessed Above-mentioned multimedia conference system indicated by conference number.

Alternatively, above-mentioned distribution access unit includes：First acquisition module, for obtaining the position that above-mentioned terminal is located in real time Put；Selecting module, for selecting the distance with above-mentioned position to be less than or equal to the MCU of predetermined threshold；Sending module, is used for Physical address with the distance of above-mentioned position less than or equal to the above-mentioned MCU of predetermined threshold is sent to into above-mentioned terminal.

Alternatively, above-mentioned first receiving unit includes：Receiver module, for receiving registrar according to the calling for prestoring The solicited message of the above-mentioned call request for carrying above-mentioned terminal of routing table forwarding, wherein, wraps in above-mentioned call routing table Include the corresponding relation of above-mentioned conference number and call routing.

Alternatively, said apparatus also include：Judging unit, for responding above-mentioned call request for above-mentioned terminal dynamic point After with multipoint control unit MCU corresponding with above-mentioned terminal, the multimedia conferencing system indicated by above-mentioned conference number is judged Whether system has built up；Access unit, for when judging that above-mentioned multimedia conference system has built up, by above-mentioned end End above-mentioned multimedia conference system is accessed by the above-mentioned MCU of distribution；Unit is set up, for judging above-mentioned multimedia When conference system does not also set up, above-mentioned multimedia conference system is set up.

Alternatively, above-mentioned access unit includes：Second acquisition module, for obtaining the capability requests that above-mentioned terminal sends, Wherein, aforementioned capabilities ask to be configured to create terminal multi-media money corresponding with above-mentioned terminal for above-mentioned terminal for request The MCU in source；Transport module, for transmitting the media code stream that above-mentioned terminal sends by above-mentioned MCU.

Alternatively, also include：Second receiving unit, for above-mentioned by the above-mentioned MCU accesses of distribution by above-mentioned terminal After multimedia conference system, the hang-up request for terminating calling that above-mentioned terminal sends is received；First releasing unit, The above-mentioned terminal multi-media resource of above-mentioned terminal is discharged for responding above-mentioned hang-up request.

Alternatively, above-mentioned unit of setting up includes：Distribute module, carries out multimedia for distributing above-mentioned multimedia conference system Meeting multimedia resource required during meeting；Module is set up, for above-mentioned many matchmakers being set up according to above-mentioned meeting multimedia resource Know from experience conference system.

Alternatively, said apparatus also include：3rd receiving unit, in the above-mentioned MCU by above-mentioned terminal by distribution After accessing above-mentioned multimedia conference system, receive for indicating to terminate the configured information of above-mentioned multimedia conferencing；Second releases Unit is put, and above-mentioned meeting multimedia resource is discharged for responding above-mentioned configured information.

Alternatively, said apparatus also include：4th receiving unit, in the above-mentioned MCU by above-mentioned terminal by distribution After accessing above-mentioned multimedia conference system, the media code stream that above-mentioned terminal sends, wherein, above-mentioned media stream packet is received The multi-medium data after encapsulation is included, above-mentioned multi-medium data includes at least one of：Video, audio frequency；Retransmission unit, For forwarding above-mentioned media code stream by above-mentioned multimedia conference system.

In embodiments of the present invention, the call request for being sent by receiving terminal, wherein, carries terminal in call request Request access multimedia conference system conference number, respond call request MCU will be controlled to terminal dynamically distributes with The corresponding multipoint control unit MCU of terminal, wherein, the above-mentioned MCU for terminal distribution is for by terminal accessing conference number In indicated multimedia conference system.That is, during terminal is accessed multimedia conference system, passing through The above-mentioned mode for terminal dynamically distributes MCU, realizes the dynamic retractility control accessed to terminal, so as to solve to adopt phase Terminal is accessed by the caused access efficiency of multimedia conference system institute by existing MCU cascade connections in the technology of pass relatively low Problem, and then realize improving the effect of the motility for accessing multimedia conference system.

Additionally, realizing dynamic cascading MCU as needed by way of call routing control control, not only overcome existing In technology caused by the multiple cascade institutes of MCU increase time delay problem, and by distributed dynamically distributes, it is acceptable in fact Substantial amounts of terminal is now accessed, the access capacity of multimedia conference system is expanded, further, will also be avoided due to reserving meeting The low problem of resource utilization caused by view resource, it is achieved thereby that reduce bandwidth using, reaches the effect of optimization bandwidth.

Description of the drawings

Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, the present invention Schematic description and description be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：

Fig. 1 is a kind of flow chart of optional method for accessing multimedia conference system according to embodiments of the present invention；

Fig. 2 is the application scenarios schematic diagram of the optional method for accessing multimedia conference system according to embodiments of the present invention；

Fig. 3 is a kind of schematic diagram of optional method for accessing multimedia conference system according to embodiments of the present invention；

Fig. 4 is the flow chart of another kind of optional method for accessing multimedia conference system according to embodiments of the present invention；

Fig. 5 is the flow chart of another optional method for accessing multimedia conference system according to embodiments of the present invention；

Fig. 6 is that a kind of optional terminal according to embodiments of the present invention accesses multimedia conference system by registrar caller Flow chart；

Fig. 7 is that a kind of optional terminal according to embodiments of the present invention passes through the called access multimedia conference system of registrar Flow chart；

Fig. 8 is the schematic diagram of system cascade in a kind of optional conference process according to embodiments of the present invention；

Fig. 9 is the flow chart of another optional method for accessing multimedia conference system according to embodiments of the present invention；

Figure 10 is the flow chart of another optional method for accessing multimedia conference system according to embodiments of the present invention；With And

Figure 11 is a kind of schematic diagram of optional device for accessing multimedia conference system according to embodiments of the present invention.

Specific embodiment

Below with reference to accompanying drawing and in conjunction with the embodiments describing the present invention in detail.It should be noted that in the feelings not conflicted Under condition, the feature in embodiment and embodiment in the application can be mutually combined.

It should be noted that description and claims of this specification and the term " first " in above-mentioned accompanying drawing, " second " Etc. being for distinguishing similar object, without for describing specific order or precedence.

Embodiment 1

A kind of method for accessing multimedia conference system is provided in the present embodiment, and Fig. 1 is according to embodiments of the present invention The flow chart for accessing the method for multimedia conference system, as shown in figure 1, the flow process comprises the steps：

S102, the call request that receiving terminal sends wherein, carry the multimedia of terminal request access in call request The conference number of conference system；

S104, response call request are terminal dynamically distributes multipoint control unit MCU corresponding with terminal, wherein, MCU For by the multimedia conference system indicated by terminal accessing conference number.

Alternatively, in the present embodiment, the method for above-mentioned access multimedia conference system can be, but not limited to be applied to such as figure In the application scenarios based on internet video conference system shown in 2, wherein, the video conferencing system bag based on the Internet Include herein below：Terminal 202, registrar 204, MCU206, three are communicated by Internet 208. Alternatively, in the present embodiment, above-mentioned terminal 202 is can be, but not limited to as video conference terminal.Alternatively, in this reality Apply in example, above-mentioned registrar 204, for terminal 202 or MCU204 to be accessed the approach in a region, by marking Quasi- agreement regulation, and transmitted address and alias address is notified to registrar 204, registrar 204 can be with By configure or standard agreement process automatic discovery procedure determining, all terminals 202 or MCU204 must be Any calling is registered to the registrar 204 of presumptive area before starting.Alternatively, in the present embodiment, it is above-mentioned mutual Intranet network can include but is not limited at least one of：Wide area network, Metropolitan Area Network (MAN), LAN.Above-mentioned terminal can with but It is not limited to：The terminal of video conference function is supported, that is, possesses audio/video encoding/decoding ability, support H323, Session Initiation Protocol Video conference communication architecture video conference terminal, for example, mobile phone, notebook computer, PC etc..Above-mentioned is only one Example is planted, this is not limited in any way in the present embodiment.

It should be noted that as terminal 202 and registrar 204 can be, but not limited to be regarding based on IP systems H323 or SIP in frequency conference system, for H323, registrar shows as GK servers, for SIP, Registrar shows as sip server.

Specifically, in the present embodiment, the call request that MCU is sent by receiving terminal, wherein, in call request The conference number of the multimedia conference system of terminal request access is carried, call request MCU is responded and will be controlled to terminal Dynamically distributes multipoint control unit corresponding with terminal (MCU, Multi Control Unit), it is wherein, above-mentioned for terminal The MCU of distribution is for by the multimedia conference system indicated by terminal accessing conference number.That is, by terminal During accessing multimedia conference system, by way of above-mentioned dynamically distributes MCU for terminal, realize connecing terminal The dynamic retractility control for entering, to improve the motility for accessing multimedia conference system；Additionally, being controlled by call routing control The mode of system realizes dynamic cascading MCU as needed, not only overcomes the caused increasing of the multiple cascade institutes of MCU in prior art The problem of big time delay, and by distributed dynamically distributes, can also realize accessing substantial amounts of terminal, expand many matchmakers Know from experience the access capacity of conference system, further, will also avoid as the resource utilization caused by reserved conferencing resource is low Problem, it is achieved thereby that reduce bandwidth using, reaches the effect of optimization bandwidth.

Alternatively, in the present embodiment, above-mentioned MCU can be including but not limited to：The MCU of blocking, each MCU are Complete functional unit.Wherein, blocking MCU, in a network, each MCU deploys related to MCU for deployment All sub-services, it is possible to achieve all related services of MCU, and can actuating section business function on demand.Wherein, MCU In can including but not limited to following at least one service：Conference dispatching is serviced, call routing service, Call Control Service, Multipoint conference control service, media handling service.

Alternatively, in the present embodiment, the MCU of said units can be, but not limited to dynamic and generate above-mentioned service or destruction Above-mentioned related service, to ensure that the dynamic retractility to Service Source is controlled.Further, service is generated in order to realize dynamic, It is accomplished by inside MCU having a Serve the production service that can generate service with dynamic, such as factory service.

Alternatively, in the present embodiment, the MCU of said units, the communication between MCU to be realized can be using long-range The invocation of procedure (RPC, Remote Procedure Call), or socket (SOCKET) etc., above-mentioned is only one Kind of example, is not limited to said method in the present embodiment, can meet in the Internet between main frame message communication requirement i.e. Can.

Alternatively, in the present embodiment, the MCU of said units includes that service and corresponding function can be as follows：

1) conference dispatching service：For managing all resources in whole meeting, including signal resource, media resource, it is Each enough resource of meeting application.Conference dispatching service needs to be communicated with all services of remaining MCU node.

2) call routing service：The call routing service of various agreements is provided, by terminal-pair meeting or meeting to terminal Call routing to certain Call Control Service, reach the purpose of load balancing.Which should support multiple standards agreement, Including H323, SIP etc..

3) Call Control Service：One calling service of calling correspondence per road, each Call Control Service are responsible for this road and are called Media negotiation, channel control etc., be responsible for by terminal call be linked into multipoint conference control service in.

4) multipoint conference control service：The Conference control of a meeting is responsible in each service, with the calling for accessing the meeting Control service, media handling service are interacted, and realize the Service control of multipoint conference.

5) media handling service：Including the reception of terminal media data, the forwarding of data between MCU, decode, synthesize, Coding, packing, transmission etc..Specific business function is realized by multipoint conference control Service controll, cascade etc. is included whether. Wherein media handling service, according to actual needs, can generate the media services (i.e. media resource) of various difference in functionalitys.

6) factory service：The system service program of different type service can be produced inside MCU, according to conference dispatching service Corresponding service routine is generated to the dynamic need of conferencing resource.

It should be noted that in the present embodiment, the division methods of above-mentioned service are this patents in order to subsequent descriptions are convenient What system function division was done is a kind of abstract, and other describe method, service name change and service number change, all exist This patent is using in the protection domain of scheme.

Alternatively, in the present embodiment, MCU is deployed in multiple regions, and the division in region can be by above-mentioned registration here Server making a distinction, think by one registrar of each regional deployment, the equipment for being registered to same registrar It is the equipment in same region.

Specifically illustrate with reference to shown in Fig. 3, it is assumed that there are three regions, respectively region A- regions C, wherein, region Terminal 202-1 in A, corresponding is MCU-1, and MCU-1 creates corresponding terminal multi-media resource 1-1, whole End multimedia resource 1-1 is connected with the meeting multimedia resource 302-1 in the region；Terminal 202-2 in the B of region, leads to Cross corresponding MCU and create terminal multi-media resource 2-1, terminal multi-media resource 2-1 and meeting multimedia resource 302-2 Connection；Terminal 202-3 in the B of region, creates terminal multi-media resource 3-1, terminal multi-media by corresponding MCU Resource 3-1 is connected with meeting multimedia resource 302-3；Meeting multimedia resource 302-1, the 302-2 in these three regions, 302-3, is connected respectively two-by-two, forms netted connection.

It should be noted that as shown in Figure 3 above, meeting multimedia resource 302-1 can be provided with access terminal multimedia To terminal multi-media resource 1-N, wherein, in terminal multi-media resource 1-N distance, MCU-1 farther out, will be divided source 1-2 It is fitted on MCU-2.Additionally, as shown in Figure 3 above, meeting multimedia resource 302-3 can be provided with access terminal multimedia Source 3-2.That is, above-mentioned meeting multimedia resource can be, but not limited to many matchmakers of terminal corresponding with multiple terminals difference Body resource forms starlike connection.

The embodiment provided by the application, the call request sent by receiving terminal wherein, are carried in call request There is the conference number of the multimedia conference system of terminal request access, respond call request MCU and will be controlled to terminal dynamic Distribution multipoint control unit MCU corresponding with terminal, wherein, the above-mentioned MCU for terminal distribution is for by terminal access meeting In multimedia conference system indicated by view number.That is, during terminal is accessed multimedia conference system, By way of above-mentioned dynamically distributes MCU for terminal, the dynamic retractility control accessed to terminal is realized, so as to solve to adopt With in correlation technique by existing MCU cascade connections by terminal access multimedia conference system institute caused by access efficiency compared with Low problem, and then realize improving the effect of the motility for accessing multimedia conference system.Additionally, passing through call routing control The mode of system control realizes dynamic cascading MCU as needed, and the multiple cascades of MCU in not only overcoming prior art are caused Increase time delay problem, and by distributed dynamically distributes, can also realize accessing substantial amounts of terminal, expand The access capacity of multimedia conference system, further, will also avoid due to reserving the resource utilization caused by conferencing resource Low problem, it is achieved thereby that reduce bandwidth using, reaches the effect of optimization bandwidth.

Used as a kind of optional scheme, response call request is terminal dynamically distributes multipoint control unit corresponding with terminal MCU includes：

S1, obtains the position that terminal is located in real time；

S2, selects the distance with position to be less than or equal to the MCU of predetermined threshold；

Physical address with the distance of position less than or equal to the MCU of predetermined threshold is sent to terminal by S3.

Alternatively, in the present embodiment, in order to overcome in prior art by pre-setting with multiple cascade connection MCU, carrying out the time delay that repeatedly forwarding comes caused by access terminal increases, the low problem of bandwidth availability ratio, the present embodiment In by selecting with the distance of the position of terminal less than or equal to the MCU of predetermined threshold, control for terminal to access multimedia meeting Conference system.For example, the calling of each terminal always selects the MCU for accessing nearby, and so as to reach optimization bandwidth, reduction is prolonged When purpose.

Specifically illustrate with reference to the example below, wherein, MCU 206 includes conference dispatching service, call routing service, Call Control Service, multipoint conference control service, media handling service.Terminal (by conference number) call-conference, First can be through registrar (such as H323 be closed and is kept or sip server), registrar is according to endpoint registration Information finds the call routing service of arbitrary MCU in the how corresponding the same area of registrar, and call routing service is reported Dispatch service relevant range information, judges the MCU that terminal should be accessed by dispatch service, i.e. select from above-mentioned zone The MCU closest with terminal, and registrar is returned to the physical address of the MCU by call routing service, Return to terminal.Wherein, the above-mentioned MCU for call routing service can be different from the MCU indicated by MCU addresses MCU, or same MCU.

The embodiment provided by the application, selects the distance with terminal position to be less than or equal to the MCU of predetermined threshold, Multimedia conference system is accessed to control MCU, so as to realize that reducing bandwidth uses, and reaches the purpose of optimization bandwidth.

Used as a kind of optional scheme, the call request that receiving terminal sends includes：

S4, receives request letter of the registrar according to the call request for carrying terminal of the call routing table forwarding for prestoring Breath, wherein, call routing table includes the corresponding relation of conference number and call routing.

Alternatively, in the present embodiment, the call request of terminal can be, but not limited to first be sent to registrar, then It is forwarded to for the specified MCU for terminal dynamically distributes MCU by registrar, specifically, registrar connects After receiving the call request of terminal transmission, call request will be forwarded to and meets exhaling for the number rule according to conference number Cry in route service, for example, configure the call routing table of conference number on registrar, if conference number does not have Call routing is matched, then can be matched on default route, enter action for responding call request for terminal so as to find The specified MCU of state distribution.Further, it is intended that the call routing service on MCU receives the calling of registrar forwarding After request, terminal address and association requests will be sent to the conference dispatching service on distribution MCU, and wait meeting to adjust Degree service returns to designated call control address of service.Then, it is intended that the dispatch service on MCU according to terminal address, according to Certain matched rule (assuming known to terminal position and region), selection one is current with present terminal or faces The Call Control Service address of the MCU of near field, and media handling address of service, while media handling address of service The Call Control Service is sent to by signaling, wherein, the address is used when Call Control Service is with terminal interaction. It is terminal dynamically distributes for the multimedia conference system indicated by by terminal accessing conference number so as to complete by specified MCU MCU.

The embodiment provided by the application, by being that terminal selects to specify MCU by the call routing table in registrar, So as to specify to be embodied as terminal dynamically distributes for by the multimedia conference system indicated by terminal accessing conference number MCU, so as to realize the MCU to having cascade connection for terminal dynamic configuration, so that terminal passes through the physical address for receiving It is indicated with the MCU for postponing realizing dynamic access multimedia conference system, and then overcome in prior art using pre- The MCU of the multiple cascade of resource is stayed to perform time delay caused when accessing and access poor.

As a kind of optional scheme, it is terminal dynamically distributes multipoint control unit corresponding with terminal in response call request After MCU, also include：

S1, judges whether the multimedia conference system indicated by conference number has built up；

S1, if judge multimedia conference system it has been established that if by terminal by distribution MCU access multimedia conferencing System；

S2, if judging, multimedia conference system does not also set up, and sets up multimedia conference system.

Alternatively, in the present embodiment, when present terminal request accesses multimedia conference system, if the multimedia conferencing System does not also set up, then need to service for the multimedia conference system distribution multipoint conference control, and distribute for each region Corresponding media services, i.e. IMS conference medium service, wherein, each region one IMS conference medium service of correspondence.Need explanation , above-mentioned IMS conference medium service can be, but not limited to for reserve for locate board of administration correspondence media meeting multimedia money Source.

Alternatively, in the present embodiment, when present terminal accesses multimedia conference system, if the multimedia conference system It has been established that then directly the terminal can be accessed in corresponding multimedia conference system.For example, the dispatch service of MCU point With Call Control Service, allow Call Control Service Signalling exchange to be carried out with terminal, after the request for receiving terminal capability, adjust The media services of the terminal distribution correspondence ability are given in degree service in terminal region, i.e. referred to as terminal media service.Need It is noted that above-mentioned Call Control Service and terminal media service may be on different MCU.

It should be noted that above-mentioned terminal media service can be, but not limited to be the service related for processing single terminal Terminal multi-media resource, is corresponded with terminal, to realize the data receiver to single terminal, transmission and media number According to processed etc.；IMS conference medium service (i.e. meeting multimedia resource) is more global clothes for meeting Business, its task and the data of multiple terminals are carried out receiving and dispatching according to the service needed of meeting, mixed processing etc..Alternatively, In the present embodiment, multiple terminal service (i.e. terminal multi-media resource) correspondences access an IMS conference medium service and (i.e. can View multimedia resource).

Alternatively, in the present embodiment, terminal is accessed the process of multimedia conference system, is not limited only to by terminal master Cry access, it is also possible to by multimedia conference system calling terminal, terminal called is accessed.This is not made in the present embodiment Any restriction.

The embodiment provided by the application, by judging whether the multimedia conference system of present terminal call request is set up, To be embodied as multimedia conference system Resources allocation, if it has been established that if be controllable to access terminal Resources allocation so that Terminal is directly accessed, if not setting up, realizes that dynamic sets up conferencing resource, so as to avoid in prior art by reserved meeting Resource utilization low problem caused by view resource institute, further while raising resource utilization is realized, by dynamic Distribute the mode of distributed resource, the capacity of multimedia conference system can also be expanded, it is allowed to which multimedia conference system connects Enter great amount of terminals.

Used as a kind of optional scheme, terminal is accessed multimedia conference system by the MCU for distributing includes：

S1, the capability requests of acquisition terminal transmission, wherein, capability requests are used for request and are configured to create and whole for terminal Hold the MCU of corresponding terminal multi-media resource；

S2, the media code stream sent by MCU transmission terminals.

As a kind of optional scheme, after terminal is accessed multimedia conference system by the MCU of distribution, also include：

S1, the hang-up request for terminating calling that receiving terminal sends；

S2, responds the terminal multi-media resource that hang-up request discharges terminal.

Alternatively, in the present embodiment, on the basis of dynamically distributes MCU, accessed for terminal dynamically distributes by the MCU The resource of multimedia conference system, that is to say, that after the call request for receiving terminal, then it is corresponding for terminal distribution Resource, i.e. take idling-resource as terminal multi-media resource, accessing multimedia conference system as terminal carries out media The resource of bit stream.Further, after terminal is hung up, then the corresponding resource of the terminal is discharged, it is unnecessary so as to avoid The wasting of resources, with reach optimization bandwidth effect.

The embodiment provided by the application, by for terminal dynamically distributes terminal multi-media resource, so that avoid existing skill By the low problem of resource utilization caused by reserved conferencing resource institute in art, and then reach the effect of saving bandwidth.

Used as a kind of optional scheme, setting up multimedia conference system includes：

S1, distribution multimedia conference system carry out meeting multimedia resource required during multimedia conferencing；

S2, sets up multimedia conference system according to meeting multimedia resource.

S1, receives the configured information for indicating ending multimedia meeting；

S2, response instructions information release meeting multimedia resource.

Alternatively, in the present embodiment, on the basis of dynamically distributes MCU, it is many matchmakers of terminal dynamically distributes by the MCU Know from experience the meeting multimedia resource of conference system, that is to say, that when meeting is set up, set up meeting corresponding with the meeting in real time View multimedia resource, i.e. take idling-resource as meeting multimedia resource, access multimedia conference system as terminal Carry out the resource of media code stream transmission.Further, after terminal is hung up, then the corresponding resource of the terminal is discharged, so as to keep away Exempt from the unnecessary wasting of resources, to reach the effect of optimization bandwidth.

The embodiment provided by the application, passes through the meeting multimedia resource of dynamically distributes multimedia conference system, so as to Avoid by the low problem of resource utilization caused by reserved conferencing resource institute in prior art, and then reach saving bandwidth Effect.

S1, the media code stream that receiving terminal sends, wherein, media code stream includes the multi-medium data after encapsulating, multimedia Data include at least one of：Video, audio frequency；

S2, by multimedia conference system forwarding media code stream.

Alternatively, in the present embodiment, during in the multimedia conference system media code stream sent by transmission terminal, can be with But it is not limited to cooperate with using multiple MCU, to realize that the media signaling of a meeting is processed.

It should be noted that in the present embodiment, for convention business is by the way of signaling is focused on, and for meeting View media adopt the synergistic mode of multiple media nodes.That is, calling is assigned on different nodes to cause Call- Control1 be it is distributed, and for convention business process, then take the mode for focusing on, pass through concentrate meeting Service is avoided under traditional cascade system, the Conference control collaboration between the Call- Control1 and principal and subordinate's meeting between meeting, So as to simplify the realization of multipoint conference control service, the added burden that signaling forwarding brings is also mitigated.Wherein, at this In embodiment, the quantity of tube terminal is not how many, and it is all fewer that the signaling control of meeting is consumed.

Specifically illustrate with reference to the example below, it is assumed that in multimedia conference system (video conferencing system), there are multiple areas There are multiple MCU in domain, each region, and each MCU has multiple terminal media services (i.e. terminal multi-media resource).Its In, each MCU includes conference dispatching service, and call routing service, Call Control Service, multipoint conference control are serviced, Media handling is serviced.

S1, terminal send media code stream to corresponding terminal media service by network packing manner, including audio frequency, video.

S2, code stream of the terminal media service the terminal for receiving see demand, encoded transmission according to other-end choosing To the IMS conference medium service of one's respective area.

S3, the code stream that IMS conference medium service (i.e. meeting multimedia resource) sends over the terminal media service of one's respective area, It is transmitted to other regional conference media.

Wherein, the IMS conference medium of code stream being received in above-mentioned steps S3, demand being seen according to choosing, code stream is transmitted to correspondence Calling media, its corresponding calling media according to demand, recompiles to code stream, and is sent to counterpart terminal.

In due to the actually used scene of video conferencing, the different pictures that all meeting-place terminal choosings are seen are usually no more than 2 (extensively Broadcast end and end is seen in choosing, the definition of initiator is the terminal that other-end is all seen except broadcast source oneself, choosing sees that end is broadcast The terminal that source is seen), so IMS conference medium forwarding pressure is less, meet the jumbo requirement of meeting, simultaneously because forwarding Level is less than 2 times, also effective control access time delay.

The embodiment provided by the application, as the pressure of encoding and decoding is all transferred in terminal media, and terminal matchmaker Body has been realized in load balancing, such that it is able to effectively realize elastic telescopic.

Specifically illustrate with reference to the example below, in order to realize dynamic configuration, then need the different services controlled in MCU to carry out Dynamic is generated and is destroyed, and start-up operation system allows system operation to User space, you can to run the state of application program, Further, for example, shown in Fig. 4, step is as follows：

S402, loads all services：After system loads are finished, all supportings are loaded, and from specified location (network The latter's disk etc.) the related all application programs of MCU are loaded, do not start all services after loaded immediately, after being It is continuous start on demand it is ready.

S404, starts factory service：Start factory service, factory service possess every other Serve the production, start enter Mouthful；

S406, judges service role：Factory will judge the service role of this confidential startup, if dispatch service or other Similar service；Because whole system only one of which dispatch service, dispatch service first must determine.Dispatch service determines Method have various, this programme provide two kinds of feasible schemes.Scheme 1：Whether allocation plan, in advance dispatching role Configuration write machine configuration file in, factory service read configuration file, according to read configuration item value to determine be No startup dispatch service；Scheme 2：Random selection, mass-sends an eigenvalue, root to other machines after all machine startups Determine that according to certain decision-making mechanism the machine specified is dispatch service；

S408, if conference dispatching service, then starts conference dispatching service：In S406 steps, through judging originally confidential opening Dynamic dispatch service is true, and in this step, factory service starts dispatch service；

S410, management and running；

S412, if not conference dispatching service, then wait dispatch service production ordering：Through judging that the machine is adjusted without the need for starting Degree service, that is put into waiting the state of dispatch command.If receiving dispatch service production ordering, execution step S414, If not receiving dispatch service production ordering, step S412 is repeated；

S414, performs Serve the production instruction：The Serve the production instruction that scheduling is sended over is received, call routing clothes are not limited to Business, Call Control Service, multipoint conference control service, media handling service etc., instruction format be not limited to COS, Service number and service start-up parameter, for example produce individual, media handling services Y of Call Control Service X etc.；

S416, service operation.

Further, after service operation, dispatch service will not auto-destruct, only system close or scheduling itself Exception is destroyed in the case of exiting, and only considers the auto-destruct flow process of other services here.It is concrete as shown in Figure 5：

S502, service operation；

Whether S504, the service of judging terminate or receive destruction instruction, and operating service routine can judge oneself in itself Whether service has completed, if completed, is carried out next step；Operating service routine can not also simultaneously The instruction that dispatch service is sended over is received in disconnecting, if scheduling is sent as needed destroys instruction, if receive scheduling sending over Destruction instruction, then perform next step S506；If service not yet completes also not receiving destruction instruction, just continue to Often run, execution step S504；

S506, discharges resource, and release before program is exited services shared resource, and exits.

Alternatively, in the present embodiment, in order to realize load balancing, mitigate single node pressure, reach load balancing Purpose, in the present embodiment, will be that terminal distributes the MCU for controlling to access nearby according to region.It is illustrated in figure 3, Assume that one has 3 regions, there are some MCU, a registrar in each region, and wherein registrar does not belong to In MCU itself, at least one call routing of each region is serviced, and it is a part of that the call routing service belongs to MCU, enters One step, it is assumed that have a conference dispatching service in region 3, the conference dispatching service are the unique scheduling of whole system Service.Terminal 202-1 is distributed in above-mentioned zone to terminal 202-3, for the terminal of zones of different, below from terminal master Cry with called two embodiments to illustrate.

Fig. 6 is the flow process that terminal 202 accesses multimedia conference system by 204 caller of registrar, wherein, calling Route service 602, conference dispatching service 604 and Call Control Service 606 are the service included in MCU206.Tool Body step is as follows：

S602, terminal ask the destination address of conference number by protocol signaling to registrar.The protocol signaling for Different protocol architectures has different standing procedures, for example for H323 systems, can be by ARG's (Address requests) Standard signaling is initiated.

S604, registration service are forwarded to and are met in the call routing service of the number rule, specifically do according to conference number Method is as follows, configures the call routing table of conference number on registrar, if conference number is not matched to call road By can match on default route；

S606, after call routing service receives the request of registrar, is sent to terminal address and association requests Conference dispatching is serviced, and waits conference dispatching service to return to designated call control address of service；

S608, after dispatch service receives request, according to terminal address, according to certain matched rule (here based on can be with Feasible premise, if terminal address is, it is known that region also can determine that), selection one is current with present terminal Or the Call Control Service address of the MCU of close region, and media handling address of service, while media handling is taken Business address is sent to the Call Control Service by signaling.The address is used when Call Control Service is with terminal interaction；

S610, conference dispatching service return to call routing service the address of Call Control Service；

S612, call routing service return to registrar the address obtained in servicing from conference dispatching；

S614, registrar return to terminal by standard agreement signaling address；

S616, the address that terminal is returned according to registrar initiate calling, are exactly subsequently the signaling process of standard, terminal Interacted by the signaling of standard and Call Control Service, in this interaction, Call Control Service can be by letter Make and the address that media handling is serviced is returned to terminal, as the sending destination location of media.

Fig. 7 is terminal 202 by the called flow process for accessing multimedia conference system of registrar 204, wherein, meeting Dispatch service 604 and Call Control Service 606 are the service included in MCU206.Comprise the following steps that：

S702, user initiate calling on the business interface of MCU, call certain termination number, and the request is by certain instruction Form is sent to dispatch service；

S704, after dispatch service receives the request, selects idle call control service, and the service can be in any area Domain, if it did not, can according to 105,106 the step of produce, dispatch service is the calling particular terminal number Instruction send the Call Control Service；

S706, Call Control Service inquire about the corresponding address of the number by standard signaling to registrar；

S708, registrar return terminal address.If the number is not present, registrar returns error message, Subsequent voice calls control service is according to the unreachable abnormal flow processing of calling；

S710, Call Control Service return to conference dispatching service terminal address；

S712, conference dispatching service are accessed analysis nearby according to terminal address, and its method is identical with step 404, this Shi Keneng selects new Call Control Service, and media handling service according to address；

S714, Call Control Service initiate to call to designated terminal according to terminal address.Follow-up is exactly the signaling process of standard, It is similar with 408, in the standard Signalling exchange flow process, the ground that Call Control Service can service media handling by signaling Location returns to terminal, used as the sending destination location of media.

Alternatively, in the present embodiment, after terminal has accessed multimedia conference system, Fig. 8 be conference process in be The schematic diagram of irrespective of size connection, wherein terminal 1, terminal 2 are masked as 4 points of region 1, terminal 3 and terminal in uniform areas Not in zones of different, region 2 is masked as, there are corresponding Call Control Service, terminal media in region 3, each terminal Service；There is an IMS conference medium service in each region；Whole meeting has unique multipoint conference control service, by meeting Dispatch service is responsible for generating control.In above-mentioned diagram, real connecting line represents signaling, and arrow represents direction；Dotted line is represented Media Stream, arrow represent direction；From diagram as can be seen that reason multiparty control service set is processed at signaling, with terminal Call- Control1 business realizing load sharing of the interaction by end, media are in netted cascade according to region, by terminal matchmaker in region Load sharing, star-shaped cascade are realized in body service.Illustrate below by two exemplary embodiments.

Fig. 9 is the flow chart of a kind of method that optional terminal accesses multimedia conference system, by taking broadcast as an example, in terminal Transmission is realized between 202-1 and terminal 202-2, and wherein, multipoint conference control service 902 is right respectively by two terminals Service in the MCU for answering realizes that wherein, above-mentioned service includes the Call Control Service in the corresponding MCU of terminal 202-1 Meeting in 606-1, terminal media service 904-1 and IMS conference medium service 906-1, and the corresponding MCU of terminal 202-2 View media services 906-2, terminal media service 904-2.Comprise the following steps that：

S902, user initiate the operation flow of broadcast terminal 1, and broadcasting method mainly allows other-end all viewing terminals 1 Picture, and the picture that terminal 1 is seen in itself can be random, it is of course also possible to oneself sees oneself.The instruction is sent to Multipoint conference control service, instruction can be initiated by the page by user, be then sent to multiparty control service by scheduling；

S904, multipoint conference control service are sent to broadcasting instructions the Call- Control1 of counterpart terminal by remote procedure call Service；

S906, Call Control Service parse broadcasting instructions, are sent to terminal 1 by standard agreement signaling process；

S908, after terminal receives broadcasting instructions, sends media code stream to corresponding terminal media service；

S910, after terminal media service receives the code stream that terminal is sended over, is recompiled as needed, is sent To the IMS conference medium service of one's respective area.The process is needed according to actual bandwidth needs, and generally, value needs directly to turn Send out.Need if saving bandwidth, coding can be re-started, compression bit rate is in transmission；

S912, after IMS conference medium service receives the code stream that terminal media is sended over, is transmitted to other IMS conference medium services；

S914, the service of purpose IMS conference medium are transmitted to the terminal media service of one's respective area the media code stream for receiving；

S916, the service of purpose terminal media are compiled the code stream for receiving again according to the physical medium ability of purpose terminal Code, then sends.

Figure 10 is the flow chart of a kind of method that optional terminal accesses multimedia conference system, as a example by selecting and see, in order to Embody the motility of this programme, select here the function of seeing be to realize the choosing of terminal 202-1 see arbitrarily other multiple terminals (with Terminal 202-2), finally it is presented in terminal 202-1 in the way of many pictures, wherein, multipoint conference control service 902 The service distinguished by two terminals in corresponding MCU realizes that wherein, above-mentioned service includes the corresponding MCU of terminal 202-1 In terminal media service 904-1 and IMS conference medium service 906-1, and the corresponding MCU of terminal 202-2 in terminal Media services 904-2, Call Control Service 606-2 and IMS conference medium service 906-2.Comprise the following steps that：

S1002, the choosing of user's initiating terminal 1 see the operation flow of other-end；

S1004, multipoint conference control service see choosing to instruct and are sent to the terminal for needing choosing to see by remote procedure call Call Control Service；

S1006, Call Control Service parse choosing and see instruction, are sent to terminal by standard agreement signaling process and (compile Number be 2 ... N)；

S1008, terminal receive it is selected see instruction after, send media code stream to corresponding terminal media service；

S1010, after terminal media service receives the code stream that terminal is sended over, sees the size of picture according to final choosing, The compression (mitigating follow-up forwarding bandwidth to take) of proper proportion is carried out to code stream；

S1012, after IMS conference medium service receives the code stream that terminal media is sended over, is transmitted to 1 region of terminal IMS conference medium service；

S1014, IMS conference medium service see end media code stream, 1 corresponding terminal matchmaker of forwarding terminal all choosings for receiving Body is serviced；

S1016, terminal media service recompile the code stream for receiving according to the physical medium ability of purpose terminal, Then send.

Through the above description of the embodiments, those skilled in the art is can be understood that according to above-described embodiment Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but a lot In the case of the former is more preferably embodiment.Based on such understanding, technical scheme is substantially in other words to existing There is the part that technology contributes embody in the form of software product, the computer software product is stored in one In storage medium (such as ROM/RAM, magnetic disc, CD), using so that a station terminal equipment including some instructions (can be with It is mobile phone, computer, server, or network equipment etc.) perform method described in each embodiment of the invention.

Embodiment 2

A kind of device for accessing multimedia conference system is additionally provided in the present embodiment, and the device is used for realizing above-mentioned enforcement Example and preferred implementation, had carried out repeating no more for explanation.As used below, term " module " can be with Realize the combination of the software and/or hardware of predetermined function.Although the device described by following examples is preferably come with software Realize, but hardware, or the realization of the combination of software and hardware is also may and to be contemplated.

A kind of access multimedia for implementing the device of above-mentioned access multimedia conference system is provided in the present embodiment The device of conference system, as shown in figure 11, the device includes：

1) the first receiving unit 1102, for the call request that receiving terminal sends, wherein, carries in call request The conference number of the multimedia conference system that terminal request is accessed；

2) distribute access unit 1104, for call request being responded for terminal dynamically distributes multiparty control corresponding with terminal Unit MCU, wherein, MCU is for by the multimedia conference system indicated by terminal accessing conference number.

Alternatively, in the present embodiment, the device of above-mentioned access multimedia conference system can be, but not limited to be applied to such as figure In the application scenarios based on internet video conference system shown in 2, wherein, the video conferencing system bag based on the Internet Include herein below：Terminal 202, registrar 204, MCU206, three are communicated by Internet 208. Alternatively, in the present embodiment, above-mentioned terminal 202 is can be, but not limited to as video conference terminal.Alternatively, in this reality Apply in example, above-mentioned registrar 204, for terminal 202 or MCU204 to be accessed the approach in a region, by marking Quasi- agreement regulation, and transmitted address and alias address is notified to registrar 204, registrar 204 can be with By configure or standard agreement process automatic discovery procedure determining, all terminals 202 or MCU204 must be Any calling is registered to the registrar 204 of presumptive area before starting.Alternatively, in the present embodiment, it is above-mentioned mutual Intranet network can include but is not limited at least one of：Wide area network, Metropolitan Area Network (MAN), LAN.Above-mentioned terminal can with but It is not limited to：The terminal of video conference function is supported, that is, possesses audio/video encoding/decoding ability, support H323, Session Initiation Protocol Video conference communication architecture video conference terminal, for example, mobile phone, notebook computer, PC etc..Above-mentioned is only one Example is planted, this is not limited in any way in the present embodiment.

Alternatively, in the present embodiment, the MCU of said units, the communication between MCU to be realized can be using long-range The invocation of procedure (RPC, Remote Procedure Call), or socket (SOCKET) etc., above-mentioned is only one Kind of example, is not limited to said apparatus in the present embodiment, can meet in the Internet between main frame message communication requirement i.e. Can.

5) media handling service：Including the reception of terminal media data, the forwarding of data between MCU, decode, synthesize, Coding, packing, transmission etc..Specific business function is realized by multipoint conference control Service controll, cascade etc. is included whether. Wherein media handling service, according to actual needs, can generate the media services of various difference in functionalitys.

It should be noted that in the present embodiment, the division device of above-mentioned service is this patent in order to subsequent descriptions are convenient What system function division was done is a kind of abstract, and other describe device, service name change and service number change, all exist This patent is using in the protection domain of scheme.

Used as a kind of optional scheme, distribution access unit includes：

1) the first acquisition module, for obtaining the position that terminal is located in real time；

2) selecting module, for selecting the distance with position to be less than or equal to the MCU of predetermined threshold；

3) sending module, for being sent to end by the physical address with the distance of position less than or equal to the MCU of predetermined threshold End.

Used as a kind of optional scheme, the first receiving unit includes：

1) receiver module, carries exhaling for terminal for receiving registrar according to what the call routing table for prestoring was forwarded The solicited message of request is, wherein, call routing table includes the corresponding relation of conference number and call routing.

As a kind of optional scheme, also include：

1) judging unit, for responding call request for terminal dynamically distributes multipoint control unit MCU corresponding with terminal Afterwards, judge whether the multimedia conference system indicated by conference number has built up；

2) access unit, for when judging that multimedia conference system has built up, by MCU of the terminal by distribution Access multimedia conference system；

3) unit is set up, for when judging that multimedia conference system does not also set up, setting up multimedia conference system.

Used as a kind of optional scheme, access unit includes：

1) the second acquisition module, for obtaining the capability requests of terminal transmission, wherein, capability requests are used for request for eventually End is configured to create the MCU of terminal multi-media resource corresponding with terminal；

2) transport module, for the media code stream sent by MCU transmission terminals.

As a kind of optional scheme, also include：

1) the second receiving unit, for, after terminal is accessed multimedia conference system by the MCU of distribution, receiving The hang-up request for terminating calling that terminal sends；

2) the first releasing unit, discharges the terminal multi-media resource of terminal for responding hang-up request.

Used as a kind of optional scheme, setting up unit includes：

1) distribute module, for distributing meeting multimedia resource required when multimedia conference system carries out multimedia conferencing；

2) module is set up, for multimedia conference system being set up according to meeting multimedia resource.

As a kind of optional scheme, also include：

1) the 3rd receiving unit, for, after terminal is accessed multimedia conference system by the MCU of distribution, receiving For indicating the configured information of ending multimedia meeting；

2) the second releasing unit, discharges meeting multimedia resource for response instructions information.

As a kind of optional scheme, also include：

1) the 4th receiving unit, for, after terminal is accessed multimedia conference system by the MCU of distribution, receiving The media code stream that terminal sends, wherein, media code stream includes the multi-medium data after encapsulating, and multi-medium data includes following At least one：Video, audio frequency；

2) retransmission unit, for by multimedia conference system forwarding media code stream.

Embodiment 3

Embodiments of the invention additionally provide a kind of storage medium for performing the method for accessing multimedia conference system.Can Selection of land, in the present embodiment, above-mentioned storage medium can be configured so that storage for performing the program code of following steps：

S1, the call request that receiving terminal sends wherein, carry the multimedia meeting of terminal request access in call request The conference number of conference system；

S2, response call request are terminal dynamically distributes multipoint control unit MCU corresponding with terminal, and wherein, MCU is used In by the multimedia conference system indicated by terminal accessing conference number.

Alternatively, in the present embodiment, above-mentioned storage medium can be including but not limited to：USB flash disk, read only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), portable hard drive, magnetic Dish or CD etc. are various can be with the medium of store program codes.

Alternatively, the specific example in the present embodiment is may be referred in above-described embodiment 1- embodiments 2 in optional embodiment Described example, the present embodiment will not be described here.

Obviously, those skilled in the art should be understood that each module or each step of the above-mentioned present invention can be with general Realizing, they can concentrate on single computing device computing device, or be distributed in multiple computing devices and constituted Network on, alternatively, they can be realized with the executable program code of computing device, it is thus possible to by they Storage in the storage device by computing device performing, and in some cases, can be holding different from order herein The shown or described step of row, or they are fabricated to each integrated circuit modules respectively, or will be many in them Individual module or step are fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware Combine with software.

The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the technology of this area For personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made it is any Modification, equivalent, improvement etc., should be included within the scope of the present invention.

Claims

1. it is a kind of access multimedia conference system method, it is characterised in that include：

The call request that receiving terminal sends, wherein, carries what the terminal request was accessed in the call request The conference number of multimedia conference system；

It is terminal dynamically distributes multipoint control unit MCU corresponding with the terminal to respond the call request, Wherein, the MCU is for the terminal to be accessed the multimedia conference system indicated by the conference number.

2. method according to claim 1, it is characterised in that the response call request is the terminal dynamically distributes The multipoint control unit MCU corresponding with the terminal includes：

The position that the terminal is located is obtained in real time；

The distance with the position is selected to be less than or equal to the MCU of predetermined threshold；

Physical address with the distance of the position less than or equal to the MCU of predetermined threshold is sent to into the end End.

3. method according to claim 1, it is characterised in that the call request that the receiving terminal sends includes：

Receiving registrar please according to the calling for carrying the terminal of the call routing table forwarding for prestoring The solicited message asked, wherein, the call routing table includes the corresponding relation of the conference number and call routing.

4. method according to claim 1, it is characterised in that be terminal dynamic point the call request is responded After with multipoint control unit MCU corresponding with the terminal, also include：

Judge whether the multimedia conference system indicated by the conference number has built up；

If judge the multimedia conference system it has been established that if by the terminal by distribute the MCU connect Enter the multimedia conference system；

If judging, the multimedia conference system does not also set up, and sets up the multimedia conference system.

5. method according to claim 4, it is characterised in that the terminal is accessed into institute by the MCU of distribution Stating multimedia conference system includes：

The capability requests that the terminal sends are obtained, wherein, the capability requests are used for request and configure for the terminal For creating the MCU of terminal multi-media resource corresponding with the terminal；

The media code stream that the terminal sends is transmitted by the MCU.

6. method according to claim 5, it is characterised in that the terminal is being accessed by the MCU of distribution After the multimedia conference system, also include：

Receive the hang-up request for terminating calling that the terminal sends；

Respond the terminal multi-media resource that the hang-up request discharges the terminal.

7. method according to claim 4, it is characterised in that described to set up the multimedia conference system and include：

Distributing the multimedia conference system carries out meeting multimedia resource required during multimedia conferencing；

The multimedia conference system is set up according to the meeting multimedia resource.

8. method according to claim 7, it is characterised in that the terminal is being accessed by the MCU of distribution After the multimedia conference system, also include：

Receive for indicating to terminate the configured information of the multimedia conferencing；

Respond the configured information and discharge the meeting multimedia resource.

9. method according to claim 1, it is characterised in that the terminal is being accessed by the MCU of distribution After the multimedia conference system, also include：

The media code stream that the terminal sends is received, wherein, the media code stream includes the multi-medium data after encapsulating, The multi-medium data includes at least one of：Video, audio frequency；

The media code stream is forwarded by the multimedia conference system.

10. it is a kind of access multimedia conference system device, it is characterised in that include：

First receiving unit, for the call request that receiving terminal sends, wherein, carries in the call request The conference number of the multimedia conference system that the terminal request is accessed；

Distribution access unit, is that the terminal dynamically distributes are corresponding with the terminal for responding the call request Multipoint control unit MCU, wherein, the MCU is for the terminal to be accessed the institute indicated by the conference number State multimedia conference system.

11. devices according to claim 10, it is characterised in that the distribution access unit includes：

First acquisition module, for obtaining the position that the terminal is located in real time；

Selecting module, for selecting the distance with the position to be less than or equal to the MCU of predetermined threshold；

Sending module, for the physical address of the MCU by predetermined threshold is less than or equal to the distance of the position It is sent to the terminal.

12. devices according to claim 10, it is characterised in that first receiving unit includes：

Receiver module, carries the terminal for receiving registrar according to what the call routing table for prestoring was forwarded The call request solicited message, wherein, the call routing table include the conference number with calling road By corresponding relation.

13. devices according to claim 10, it is characterised in that also include：

Judging unit, for corresponding with the terminal more for the terminal dynamically distributes in the response call request After point control unit MCU, judge whether the multimedia conference system indicated by the conference number has built up；

Access unit, for when judging that the multimedia conference system has built up, by the terminal by dividing The MCU for matching somebody with somebody accesses the multimedia conference system；

Unit is set up, for when judging that the multimedia conference system does not also set up, setting up the multimedia meeting Conference system.

14. devices according to claim 13, it is characterised in that the access unit includes：

Second acquisition module, for obtaining the capability requests that the terminal sends, wherein, the capability requests are used for Ask to be configured to create the MCU of terminal multi-media resource corresponding with the terminal for the terminal；

Transport module, transmits the media code stream that the terminal sends for the MCU.

15. devices according to claim 14, it is characterised in that also include：

Second receiving unit, for accessing the multimedia conferencing system by the terminal by the MCU of distribution After system, the hang-up request for terminating calling that the terminal sends is received；

First releasing unit, discharges the terminal multi-media resource of the terminal for responding the hang-up request.

16. devices according to claim 13, it is characterised in that the unit of setting up includes：

Distribute module, for distributing meeting multimedia required when the multimedia conference system carries out multimedia conferencing Resource；

Module is set up, for the multimedia conference system being set up according to the meeting multimedia resource.

17. devices according to claim 16, it is characterised in that also include：

3rd receiving unit, for accessing the multimedia conferencing system by the terminal by the MCU of distribution After system, receive for indicating to terminate the configured information of the multimedia conferencing；

Second releasing unit, discharges the meeting multimedia resource for responding the configured information.

18. devices according to claim 10, it is characterised in that also include：

4th receiving unit, for accessing the multimedia conferencing system by the terminal by the MCU of distribution After system, the media code stream that the terminal sends is received, wherein, the media code stream includes the multimedia after encapsulating Data, the multi-medium data include at least one of：Video, audio frequency；

Retransmission unit, for forwarding the media code stream by the multimedia conference system.