CN101662375A - Interactive method based on multimedia conference and multimedia conference system - Google Patents

Interactive method based on multimedia conference and multimedia conference system Download PDF

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Publication number
CN101662375A
CN101662375A CN 200810210567 CN200810210567A CN101662375A CN 101662375 A CN101662375 A CN 101662375A CN 200810210567 CN200810210567 CN 200810210567 CN 200810210567 A CN200810210567 A CN 200810210567A CN 101662375 A CN101662375 A CN 101662375A
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message
terminal
address
gatekeeper
control unit
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CN101662375B (en
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马铮
李峰
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ZTE Corp
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ZTE Corp
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Abstract

The invention provides an interactive method based on a multimedia conference, a multipoint control unit and a multimedia conference system. The interactive method is applied to a network comprising aterminal, a gatekeeper and a multipoint control unit and comprises the following steps: a proxy module is arranged on the multipoint control unit and is used for realizing the communication between the terminal not in the same network section with the gatekeeper and the gatekeeper; the multipoint control unit is used for acquiring a first message from the terminal and transmitting the first message to the gatekeeper by using an IP address in the same network section with the gatekeeper through the proxy module; and the multipoint control unit is also used for acquiring a second message whichresponds to the first message and comes from the gatekeeper and transmitting the second message to the terminal through the proxy module. In the method, since the proxy module is arranged in the multipoint control unit, and terminals which are in different network sections and are not mutually communicated can be registered on GK with one IP address, thereby saving IP address resources are saved.

Description

Exchange method, multimedia conference system based on multimedia conferencing
Technical field
The present invention relates to the communications field, in particular to a kind of exchange method, multipoint control unit and multimedia conference system based on multimedia conferencing.
Background technology
In the application of video conferencing, have such situation sometimes: have N the different network segment, these network segments can not be communicated with each other; Simultaneously, also have a plurality of terminals, these terminals are in respectively in these obstructed each other network segments, and GK (Gate Keeper, gatekeeper) is in one of them network segment; The a plurality of IP of MCU (Multipoint control unit, multipoint control unit) configuration address, these IP addresses are in respectively in these different network segments; If a plurality of terminals are participated in the meeting that MCU convenes simultaneously, then need on GK, register.
Because the different network segment each other can not direct communication, therefore with GK not the terminal in the same network segment just can't on GK, directly register, like this, when MCU calls a meeting, because GK can't carry out address resolution to these unregistered terminals, therefore can cause can't not adding this meeting in the terminal of the same network segment with GK.
At this problem, GK can be by disposing a plurality of different segments the mode of IP address solve, but in video conferencing, generally speaking, from the GK angle, GK only disposes a network interface, corresponding IP address, from user perspective, GK is an optional equipment, is that to dispose a plurality of IP address be a kind of waste to the IP address resource to an optional equipment.
Summary of the invention
Consider the problems referred to above and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of exchange method based on multimedia conferencing, multipoint control unit and multimedia conference system, to solve that the terminal in order to realize different segment that exists in the correlation technique is carried out multimedia conferencing and to be that GK disposes a plurality of IP address, cause wasting the problem of IP address resource.
According to an aspect of the present invention, provide a kind of exchange method based on multimedia conferencing, this method is applied to comprise the network of terminal, gatekeeper, multipoint control unit.
Exchange method based on multimedia conferencing according to the present invention comprises: at multipoint control unit proxy module is set, is used to realize be in communicating by letter between the terminal of different segment and the gatekeeper with the gatekeeper; Multipoint control unit obtains first message of self terminal, by proxy module, uses with the IP address of the same network segment of gatekeeper first forwards is arrived the gatekeeper; Multipoint control unit obtains second message from gatekeeper's response first message, by proxy module with second forwards to terminal.
Preferably, multipoint control unit is before obtaining first message of self terminal, and this method also comprises: dispose a plurality of IP address at multipoint control unit, these IP addresses are respectively the IP address of each network segment; And in terminal configuration gatekeeper address, this gatekeeper address is for being in IP address on the same network segment with multipoint control unit.
Preferably, after multipoint control unit obtained first message of self terminal, this method also comprised: judge according to the terminal iidentification that first message is carried whether this locality exists the terminal iidentification corresponding terminal information; If there is end message, then directly first message is sent to the gatekeeper; If there is not end message, then preserves the IP address and the port information of terminal iidentification and terminal, and first message is sent to the gatekeeper; Wherein, the end message of terminal comprises: the terminal iidentification of terminal, IP address and port information.
Preferably, carry the terminal iidentification of the terminal that receives second message in second message, multipoint control unit obtains after second message from the gatekeeper, and this method also comprises: judge according to the terminal iidentification in second message whether this locality exists the terminal iidentification corresponding terminal information; If there is an end message, then search corresponding IP address and port information according to end message, and according to the IP address that finds and port information with second forwards to terminal; If there is not end message, then abandon second message.
According to a further aspect in the invention, provide a kind of multipoint control unit.
Multipoint control unit according to the present invention comprises: first transceiver module, be used to obtain first message of self terminal, and the IP address of the use and the same network segment of gatekeeper with first forwards to the gatekeeper; Second transceiver module is used to obtain second message from gatekeeper's response first message, and with second forwards to terminal.
Preferably, this multipoint control unit also comprises: memory module is used to preserve the end message of terminal; Judge module is used for judging whether memory module exists the terminal iidentification corresponding terminal information of carrying in first message or second message; Wherein, end message comprises: the terminal iidentification of terminal, IP address and port information.
Preferably, this multipoint control unit also comprises: administration module is used for first transceiver module, second transceiver module, memory module, judge module are managed.
Preferably, above-mentioned administration module is used for realizing that following operation one of at least: judge under the situation that does not have the terminal iidentification corresponding terminal information that first message carries at judge module, call memory module and preserve the terminal iidentification that carries in the IP address of the terminal that sends first message and the port information and first message; Judge under the situation that has the terminal iidentification corresponding terminal information of carrying in first message at judge module, call first transceiver module and transmit first message; Judge under the situation that has the terminal iidentification corresponding terminal information of carrying in second message at judge module, call second transceiver module and transmit second message according to end message; Do not exist under the situation of the terminal iidentification corresponding terminal information of carrying in second message in the judge module judgement, call second transceiver module and abandon second message.
In accordance with a further aspect of the present invention, provide a kind of multimedia conference system.
According to multimedia conference system of the present invention, comprise terminal, gatekeeper, and above-mentioned any multipoint control unit.
By technique scheme one of at least, by proxy module being set at multipoint control unit, overcome at present by dispose the multimedia conferencing that the different segment terminal room is realized in a plurality of IP address for GK, the problem that causes the IP address resource to be wasted, thus saved the IP address resource.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows the block diagram according to the multipoint control unit of apparatus of the present invention embodiment;
Fig. 2 shows the block diagram according to the multipoint control unit of preferred embodiment embodiment of the present invention;
Fig. 3 shows the system block diagram of system according to the invention embodiment;
Fig. 4 shows the flow chart based on the exchange method of multimedia conferencing according to the inventive method embodiment;
Fig. 5 shows according to the terminal of the inventive method embodiment and the flow chart of the communication mode between the gatekeeper;
Fig. 6 shows the flow chart according to first message of the proxy module processing terminal of the inventive method embodiment;
Fig. 7 shows the flow chart of handling gatekeeper's second message according to the proxy module of the inventive method embodiment.
Embodiment
As mentioned above, for solve with GK not the terminal in the same network segment can't on GK, register and can't add the problem of meeting, currently used scheme adopts and disposes the mode of the IP address of a plurality of different segments at GK, but there is the problem of IP address resource waste in this mode, for this reason, and in the technical scheme that the present invention provides, GK only disposes an IP address, simultaneously, can not be registered on the GK with GK yet, thereby can realize the address resolution of GK these terminals in the terminal of the same network segment.
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Device embodiment
In the present embodiment, provide a kind of MCU, this MCU comprises proxy module, in embodiments of the present invention the proxy module of Shi Yonging RAS (RegistrationAdmission and Status, registration, insert and state) Message Agent module preferably.Because MCU can dispose a plurality of IP address, these IP addresses can dispose the IP address on a plurality of network segments respectively, and therefore, MCU can communicate with the terminal on the different segment of office.Simultaneously, MCU also has the IP address with the same network segment of GK, and therefore, MCU and GK also can proper communications.By proxy module in the inner increase of MCU, MCU can be forwarded to the message owing to the terminal that can not communicate by letter at the same network segment with GK on the GK by proxy module, message with GK is transmitted to terminal by proxy module again, thereby realize the Signalling exchange of terminal and GK, realize communicating by letter of terminal and GK indirectly.
Fig. 1 is the block diagram according to the MCU of apparatus of the present invention embodiment, particularly, and the block diagram of the proxy module of MCU.As shown in Figure 1, comprise first transceiver module 10 and second transceiver module 20.Below further combined with accompanying drawing 2 details of each part is described.
First transceiver module 10 is used to obtain first message of self terminal, and GK is arrived with first forwards in the IP address of the use and the same network segment of GK; Wherein, first message here can be the RAS interaction message between RAS first message and other terminal and the gatekeeper.
Second transceiver module 20 is used to obtain second message from response first message of GK, and with second forwards to terminal, second message here can be the RAS interaction message between RAS second message and other gatekeeper and the terminal.
Preferably, as shown in Figure 2, this MCU also comprises memory module 30, judge module 40, administration module 50, and wherein, memory module 30 is used to preserve the end message of terminal; Judge module 40 is used for judging whether memory module 30 exists the terminal iidentification corresponding terminal information of carrying in first message or second message; Wherein, end message specifically comprises: the terminal iidentification of terminal, IP address and port information.
And administration module 50 is connected with first transceiver module 10, second transceiver module 20, memory module 30, judge module 40 respectively, be used for first transceiver module 10, second transceiver module 20, memory module 30, judge module 40 are managed, call each module and carry out corresponding operation.
Particularly, administration module 50 is used for realizing that following operation one of at least: judge at judge module 40 under the situation that does not have the terminal iidentification corresponding terminal information that first message carries, call memory module 30 and preserve the terminal iidentification that carries in the IP address of the terminal that sends these first message and the port information and first message, just preserved the IP address of terminal iidentification and terminal and the relation information between the port information; Judge under the situation that has the terminal iidentification corresponding terminal information of carrying in first message at judge module 40, call first transceiver module 10 and transmit first message; Judge under the situation that has the terminal iidentification corresponding terminal information of carrying in second message at judge module 40, call second transceiver module 20 and transmit second message according to end message; Do not exist under the situation of the terminal iidentification corresponding terminal information of carrying in second message in judge module 40 judgements, call second transceiver module 20 and abandon second message.
By the MCU that this embodiment provides, can realize being in the terminal of different segment and communicating by letter of this GK with GK.
In conjunction with above-mentioned MCU, the embodiment of the invention also provides a kind of multimedia conference system, comprises terminal, GK, and above-mentioned MCU, as shown in Figure 3.
Fig. 3 shows the system block diagram of system according to the invention embodiment, wherein, T1, T2, is in respectively in the different network segments to Tn, and these network segments each other all can not direct communication; Be the IP address that MCU disposes each network segment, like this, MCU can communicate with the terminal in these network segments; GK in the Tn network segment, it can with MCU and terminal direct communication in the Tn network segment, but can not directly communicate with terminal in other network segments such as T1, T2; By the RAS message proxy module among the MCU, MCU can be forwarded to first message of those terminals that can not communicate by letter at the same network segment with GK on the GK by this proxy module, first message after will handling by GK again, just second message is transmitted to above-mentioned terminal by this proxy module, thereby realize the Signalling exchange of above-mentioned terminal and GK, realize communicating by letter of above-mentioned terminal and GK indirectly.
By the network environment that this embodiment provides, can realize with GK not in the terminal of the same network segment and communicating by letter of this GK.
Method embodiment
In the present embodiment, a kind of exchange method based on multimedia conferencing is provided, be applied to comprise the network of terminal, GK, multipoint control unit, the GK that GK used herein preferably provides among the said apparatus embodiment, certainly, also can use other suitable GK, the present invention is not limited in this respect.
Fig. 4 shows the flow chart based on the exchange method of multimedia conferencing according to the inventive method embodiment.As shown in Figure 4, the exchange method based on multimedia conferencing according to the inventive method embodiment comprises following processing:
Step S402 is provided with proxy module at MCU, is used to realize be in communicating by letter between the terminal of different segment and the GK with GK;
Step S404, MCU obtains self terminal (wherein, for MCU disposes a plurality of IP address, these IP addresses are configured to the IP address of each network segment respectively, and in this terminal configuration gatekeeper address, this gatekeeper address is for being in IP address on the same network segment with multipoint control unit) first message, by proxy module, use IP address with the same network segment of GK with first forwards to GK;
Step S406, MCU obtain second message from response first message of GK, by proxy module with second forwards to terminal.
From foregoing description as can be seen, the present invention is by being provided with proxy module at MCU, makes the terminal that is on the difference and the obstructed each other network segment can be registered on the GK that only disposes an IP address, than prior art, avoid the wasting of resources of IP address, saved the IP address resource.
Below in conjunction with Fig. 5 terminal among the said method embodiment and the communication mode between the GK are described in detail, wherein, first message here is RAS message, and correspondingly, proxy module is the RAS message proxy module.
As shown in Figure 5, terminal T sends to MCU with RAS message, and after built-in RAS message proxy module was received this RAS message among the MCU, use was transmitted to GK with the IP address of the same network segment of GK with this RAS message.After this RAS message processing, RAS message after GK will handle is dealt into MCU, the end message that RAS message after the RAS message proxy module analyzing and processing among the MCU carries, obtain the IP address and the port information of terminal, thereby judge the terminal that receive this message, the RAS message proxy module RAS message of IP address after with above-mentioned processing that use the corresponding network segment sends to relevant terminal then.
Below further describe the details of above-mentioned each step.
Preferably, in step S404, MCU disposed many IP addresses of MCU earlier before obtaining first message of self terminal, and these IP addresses are configured to the IP address of each network segment respectively; And in terminal configuration gatekeeper address, this gatekeeper address is for being in IP address on the same network segment with multipoint control unit.The preferred embodiment makes MCU to be registered to GK with needs and communicates with terminal that this GK is in different segment respectively.
Preferably, in step S404, MCU is after obtaining first message of self terminal, end message at terminal, also need to carry out following operation, wherein, the end message of terminal comprises terminal iidentification, IP address and the port information of terminal: judge according to the terminal iidentification that above-mentioned first message is carried whether this locality has existed this terminal iidentification corresponding terminal information; If there is end message, then directly first message is sent to GK; Otherwise, preserve the IP address and the port information of above-mentioned terminal iidentification and this terminal earlier, promptly preserve the IP address of terminal iidentification and terminal and the relation information between the port information, again first message is sent to GK afterwards.The preferred embodiment makes can communicate by letter between terminal and the GK exactly, has guaranteed the fail safe of communication.
Fig. 6 shows the flow chart according to first message of the proxy module processing terminal of the inventive method embodiment.As shown in Figure 6, comprise following processing:
Step S602, the RAS message proxy module receives the RAS message of terminal;
Step S604 judges according to the terminal iidentification that this RAS message carries whether the IP address of this terminal and port information are preserved; If do not preserve, then proceed to step S606; If preserve, then carry out step S608;
Step S606 preserves terminal iidentification, IP address and the port information of this terminal, proceeds to step S608 afterwards;
Step S608 is forwarded to GK with this RAS message.
Preferably, in step S406, carry the terminal iidentification of the terminal that receives second message in second message.At this terminal iidentification, also need to carry out following operation: MCU among the step S406 and obtain after second message from response first message of GK, judge according to the terminal iidentification in second message whether this locality has existed the terminal iidentification corresponding terminal information; If exist, then search corresponding IP address and port information according to end message, and according to the IP address that finds and port information with second forwards to terminal; Otherwise, abandon second message.The preferred embodiment makes can communicate by letter between terminal and the GK exactly, has guaranteed the fail safe of communication.
Fig. 7 shows the flow chart of handling second message of GK according to the proxy module of the inventive method embodiment, and wherein, the RAS message that above-mentioned second message can be handled by GK as shown in Figure 7, comprises following processing:
The RAS message of handling through GK that step S702, RAS message proxy module receive that GK sends;
Step S704, the terminal iidentification that carries in the RAS message according to above-mentioned processing is searched IP address and the port information corresponding with this terminal iidentification, just the IP address and the port information of purpose terminal from the information that the RAS message proxy module is preserved, if find, then carry out step S706; Otherwise, carry out step S708.
Step S706, the RAS message that this is processed is transmitted to the purpose terminal;
Step S708, the RAS message that this is processed abandons.
In sum, by embodiments of the invention, the terminal that is on the difference and the obstructed each other network segment can be registered on the GK of an IP address that a network segment only is provided, dispose a plurality of IP address without GK, just can realize that normal and GK communicates with the terminal of GK different segment, save the IP address resource.
Need to prove in addition, be that example describes with the multimedia conferencing TV domain more than the present invention, wherein first message is RAS message, but the invention is not restricted to this, in such as other multimedia communications such as video image meetings, can use the present invention equally, and first message also can comprise other interaction messages between terminal and the gatekeeper.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (9)

1. exchange method based on multimedia conferencing is applied to comprise the network of terminal, gatekeeper, multipoint control unit it is characterized in that described method comprises:
At multipoint control unit proxy module is set, is used to realize be in communicating by letter between the terminal of different segment and the described gatekeeper with the gatekeeper;
Described multipoint control unit obtains first message of self terminal, by described proxy module, uses with the IP address of the same network segment of described gatekeeper described first forwards is arrived described gatekeeper;
Described multipoint control unit obtains second message from described first message of described gatekeeper's response, by described proxy module with described second forwards to described terminal.
2. exchange method according to claim 1 is characterized in that, described multipoint control unit obtains before first message of self terminal, and described method also comprises:
Dispose a plurality of IP address at described multipoint control unit, described a plurality of IP address is respectively the IP address of each network segment;
In described terminal configuration gatekeeper address, described gatekeeper address is for being in IP address on the same network segment with described multipoint control unit.
3. exchange method according to claim 1 is characterized in that, described multipoint control unit obtains after first message of self terminal, and described method also comprises:
Judge according to the terminal iidentification that described first message is carried whether this locality exists described terminal iidentification corresponding terminal information;
If there is described end message, then directly described first message is sent to described gatekeeper;
If there is not described end message, then preserves the IP address and the port information of described terminal iidentification and described terminal, and described first message is sent to described gatekeeper;
Wherein, described end message comprises: the terminal iidentification of described terminal, IP address and port information.
4. exchange method according to claim 1 is characterized in that, carries the terminal iidentification of the terminal that receives described second message in described second message, and described multipoint control unit obtains after second message from described gatekeeper, and described method also comprises:
Judge according to the terminal iidentification in described second message whether this locality exists described terminal iidentification corresponding terminal information;
If there is a described end message, then search corresponding IP address and port information according to described end message, and according to the IP address that finds and port information will described second forwards described terminal extremely;
If there is not described end message, then abandon described second message.
5. a multipoint control unit is characterized in that, comprising:
First transceiver module is used to obtain first message of self terminal, and the IP address of the use and the same network segment of described gatekeeper with described first forwards to described gatekeeper;
Second transceiver module is used to obtain second message from described first message of gatekeeper's response, and with described second forwards to described terminal.
6. multipoint control unit according to claim 5 is characterized in that, also comprises:
Memory module is used to preserve the end message of terminal;
Judge module is used for judging whether described memory module exists the terminal iidentification corresponding terminal information of carrying in described first message or described second message;
Wherein, described end message comprises: the terminal iidentification of described terminal, IP address and port information.
7. multipoint control unit according to claim 5 is characterized in that, also comprises:
Administration module is used for described first transceiver module, described second transceiver module, described memory module, described judge module are managed.
8. multipoint control unit according to claim 7 is characterized in that, described administration module is used to realize that following operation is one of at least:
Judge at described judge module not exist under the situation of the terminal iidentification corresponding terminal information of carrying in described first message, call described memory module and preserve the terminal iidentification that carries in the IP address of the terminal that sends described first message and port information and described first message;
Exist under the situation of the terminal iidentification corresponding terminal information of carrying in described first message in described judge module judgement, call described first transceiver module and transmit described first message;
Exist under the situation of the terminal iidentification corresponding terminal information of carrying in described second message in described judge module judgement, call described second transceiver module and transmit described second message according to described end message;
Do not exist under the situation of the terminal iidentification corresponding terminal information of carrying in described second message in described judge module judgement, call described second transceiver module and abandon described second message.
9. a multimedia conference system comprises terminal, gatekeeper, it is characterized in that, also comprises according to each described multipoint control unit in the claim 5 to 8.
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CN101917586A (en) * 2010-08-17 2010-12-15 杭州华三通信技术有限公司 Joining method and equipment for conference
CN102523572A (en) * 2011-11-23 2012-06-27 中兴通讯股份有限公司 Call request information processing method and device
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CN101867586B (en) * 2010-06-29 2014-08-13 中兴通讯股份有限公司 Method and system for realizing cross network segment signaling interworking of videoconference system
WO2012000364A1 (en) * 2010-06-29 2012-01-05 中兴通讯股份有限公司 Method and system for implementing cross-segment signaling intercommunication in video conference system
CN101867586A (en) * 2010-06-29 2010-10-20 中兴通讯股份有限公司 Method and system for realizing cross network segment signaling interworking of videoconference system
CN101917586A (en) * 2010-08-17 2010-12-15 杭州华三通信技术有限公司 Joining method and equipment for conference
CN101917586B (en) * 2010-08-17 2013-07-03 杭州华三通信技术有限公司 Joining method and equipment for conference
CN102523572A (en) * 2011-11-23 2012-06-27 中兴通讯股份有限公司 Call request information processing method and device
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CN103514052A (en) * 2013-08-15 2014-01-15 飞天诚信科技股份有限公司 Multi-application mutually-accessing method and smart card
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CN104660952B (en) * 2015-03-04 2018-06-08 苏州科达科技股份有限公司 Video conference communication method and system

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