WO2019029485A1 - 视频会议多点控制方法、装置、存储介质和计算机设备 - Google Patents

视频会议多点控制方法、装置、存储介质和计算机设备 Download PDF

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Publication number
WO2019029485A1
WO2019029485A1 PCT/CN2018/098995 CN2018098995W WO2019029485A1 WO 2019029485 A1 WO2019029485 A1 WO 2019029485A1 CN 2018098995 W CN2018098995 W CN 2018098995W WO 2019029485 A1 WO2019029485 A1 WO 2019029485A1
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Prior art keywords
mcu
unitized
terminal
conference
service
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PCT/CN2018/098995
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English (en)
French (fr)
Inventor
潘云川
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中兴通讯股份有限公司
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Priority to EP18843414.6A priority Critical patent/EP3657780A1/en
Priority to US16/637,759 priority patent/US20200169695A1/en
Publication of WO2019029485A1 publication Critical patent/WO2019029485A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems
    • H04N7/152—Multipoint control units therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • H04L65/403—Arrangements for multi-party communication, e.g. for conferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • H04L65/403—Arrangements for multi-party communication, e.g. for conferences
    • H04L65/4046—Arrangements for multi-party communication, e.g. for conferences with distributed floor control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/75—Media network packet handling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/75—Media network packet handling
    • H04L65/764—Media network packet handling at the destination 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
    • H04L67/1004—Server selection for load balancing
    • H04L67/1021—Server selection for load balancing based on client or server locations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/52—Network services specially adapted for the location of the user terminal

Definitions

  • the present disclosure relates to, but is not limited to, the field of communication technology.
  • a multi-point control unit is a network node that controls a multipoint conference system, and is also a key network element responsible for signaling access of terminals in video conferencing and synthesis and forwarding of media data such as audio and video. .
  • the MCU of the Internet-based video conference needs to solve the specific needs of the Internet video conference in addition to the functions of the traditional MCU.
  • cascading a method in which multiple unitized MCUs are connected together through a certain topological relationship to complete a conference.
  • the present disclosure provides a video conference multipoint control method, the method comprising: a first unitized multipoint control unit (MCU) receiving a conference call request of a terminal by using a conference scheduling service, and receiving an area where the terminal is located
  • the area information is that the second unitized MCU of the area where the terminal is located is reported by the call routing service; the first unitized MCU selects the third unitized MCU according to the area information and a preset rule.
  • the first unitized MCU Performing a call control service, and returning the third unitized MCU address to the terminal; the first unitized MCU receiving a call request of the terminal for a third unitized MCU address, and the third unit The MCU is allocated to the terminal; after receiving the media processing capability requirement of the terminal, the first unitized MCU allocates a fourth unitized MCU that satisfies the requirement in the area to the terminal to perform Terminal media processing service.
  • the present disclosure also provides a video conference multipoint control method, the method comprising: a first unitized multipoint control unit (MCU) receiving a conference call request for a terminal by using a conference scheduling service, where the terminal Allocating a third unitized MCU to the terminal to perform a call control service, and causing the third unitized MCU to perform signaling interaction with the terminal; the first unitized MCU receiving the terminal After the media processing capability request, the fourth unitized MCU in the area that meets the requirement is allocated to the terminal to perform a terminal media processing service; after the first unitized MCU is on the terminal, The conference accessed by the terminal allocates a fifth unitized MCU to perform a multipoint conference control service, and respectively allocates a corresponding sixth unitized MCU to all areas associated with the conference to perform a conference media service; Receiving, by the unitized MCU, call hang up information of the terminal, releasing the third unitized MCU and the fourth unitized MCU; the first unitized MCU receiving a conference end notification, Discharge means of
  • the present disclosure further provides a video conference multipoint control apparatus, including: a terminal, a registration server, and a unitized multipoint control unit (MCU), where the service functions of the unitized MCU include conference scheduling service and call routing a service, a terminal call control service, and a terminal media processing service, the unitized MCU comprising a first unitized MCU, a second unitized MCU, a third unitized MCU, and a fourth unitized MCU; the first unitized MCU configuration And receiving, by the conference scheduling service, the conference call request of the terminal, and receiving the area information of the area where the terminal is located, where the area information is reported by any second unitized MCU of the area where the terminal is located by using the call routing service; The area information and the preset rule select a third unitized MCU to perform a call control service, and return the third unitized MCU address to the terminal; receive the call request of the terminal for the third unitized MCU address, and Allocating the third unitized MCU to the terminal; after receiving the media processing
  • the present disclosure also provides a computer readable storage medium having stored thereon computer executable instructions that, when executed by a processor, cause the processor to execute One or more steps in the video conferencing multipoint control method described herein.
  • the present disclosure also provides a computer device comprising a memory and a processor, the memory storing computer readable instructions, wherein the computer readable instructions are executed by the processor such that the processor Perform one or more of the video conferencing multipoint control methods described herein.
  • FIG. 1 is a flowchart of a video conference multipoint control method according to an embodiment of the present disclosure.
  • FIG. 2 is a flow chart of a video conference multipoint control method according to another embodiment of the present disclosure.
  • FIG. 3 is a flowchart of a video conference multipoint control method according to still another embodiment of the present disclosure.
  • FIG. 4 is a structural block diagram of a video conference multipoint control apparatus according to an embodiment of the present disclosure.
  • a multi-point control unit is a network node that controls a multipoint conference system, and is also a key network element responsible for signaling access of terminals in video conferencing and synthesis and forwarding of media data such as audio and video. .
  • the MCU of the Internet-based video conference has the functions of the traditional MCU in addition to the functions of the traditional MCU, and needs to solve the specific needs of the Internet video conference.
  • the conference Once the conference is created, it needs to be used anytime and anywhere; secondly, resources There is dynamic scaling. Regardless of the number of access terminals, it is necessary to be able to dynamically allocate resource support. Again, since the number of terminal accesses is uncertain, there is a large-scale terminal access situation.
  • MCU multi-point control unit
  • P2P point-to-point-point-to-point
  • the present disclosure particularly provides a video conferencing multipoint control method, apparatus, storage medium, and computer device that substantially obviate one or more of the disadvantages and limitations of the related art.
  • FIG. 4 is a structural block diagram of a video conference multipoint control apparatus according to an embodiment of the present disclosure.
  • the video conference multipoint control apparatus of the Internet may include a terminal 41, a registration server 42, and a unitized MCU 43.
  • the unitized MCU 43 is a multipoint control unit
  • the terminal 41 is the terminal 41 of the video conference.
  • the Internet is divided into a plurality of areas, whether it is a unitized MCU 43 or a terminal 41, which can be regarded as an endpoint on the Internet; and registration on the registration server 42 is an endpoint (the The way in which the terminal 41 or the unitized MCU 43) accesses an area.
  • the registration process is defined by a standard protocol.
  • the registration server 42 can determine the area to which it is accessed through configuration or an automatic discovery process of a standard protocol procedure. In the present disclosure, all endpoints must be registered to a particular area by the registration server 42 before any call begins.
  • the registration server 42 is a gatekeeper GK (GateKeeper) server; and the terminal 41 is a session initiation protocol SIP (Session Initiation Protocol).
  • GK GateKeeper
  • SIP Session Initiation Protocol
  • the registration server 42 is a SIP server, and all of the above are standard network elements, and details are not described herein again.
  • the unitized MCU 43 represents that each MCU is a complete functional unit, and each of the unitized MCUs 43 is deployed in the Internet or a local area network, and regardless of which networking mode is deployed, each A plurality of sub-services (service functions) are deployed on the nodes of the unitized MCU 43, and the unitized MCU 43 can dynamically start and implement all sub-services under the unitized MCU 43 according to the dynamic requirements of the conference resources.
  • the service only needs to start the service program corresponding to the service of the part of the sub-service on demand.
  • the unitized MCU 43 includes, but is not limited to, a sub-service such as a conference scheduling service, a call routing service, a terminal 41 call control service, a multipoint conference control service, a terminal 41 media processing service, and a conference media service.
  • a sub-service such as a conference scheduling service, a call routing service, a terminal 41 call control service, a multipoint conference control service, a terminal 41 media processing service, and a conference media service.
  • the first unitized MCU, the second unitized MCU, the third unitized MCU, the fourth unitized MCU, the fifth unitized MCU, and the sixth unitized MCU in the embodiments of the present disclosure are all unitized MCUs. 43.
  • the above-mentioned unitized MCU 43 can start the service program corresponding to the sub-service according to the dynamic requirement of the conference. For example, in some embodiments, the first unitized MCU needs to perform a conference scheduling service, the second unitized MCU needs to perform a call routing service, the third unitized MCU needs to perform a call control service, and the fourth unitized MCU needs to execute the terminal 41.
  • the fifth unitized MCU needs to perform multipoint conference control services
  • the sixth unitized MCU needs to perform conference media services.
  • two of the foregoing first unitized MCU, second unitized MCU, third unitized MCU, fourth unitized MCU, fifth unitized MCU, and sixth unitized MCU One or more may be the same unitized MCU 43 that performs different business functions in different states.
  • the sub-services of a unitized MCU 43 After the sub-services of a unitized MCU 43 are started, they can be revoked according to the dynamic requirements of the conference resources. At this time, the generated MCUs corresponding to the various sub-services are restored to the unitized MCU 43, and the next conference can be accepted. Scheduling.
  • the above-mentioned unitized MCU 43 can dynamically generate the above services and destroy the related services, and ensure the dynamic expansion and contraction of the conference resources.
  • the unitized MCU 43 needs to implement communication between each other, but is not limited to a remote procedure call (RPC) or a socket (SOCKET), as long as the communication method satisfies the Internet. Message communication requirements between mid-span hosts are sufficient.
  • RPC remote procedure call
  • SOCKET socket
  • FIG. 1 is a flowchart of a video conference multipoint control method according to an embodiment of the present disclosure. As shown in FIG. 1 and FIG. 4, in one embodiment, a video conference multipoint control method is provided, including steps S10 to S40.
  • the first unitized MCU receives the conference call request of the terminal 41 through the conference scheduling service, and receives the area information of the area where the terminal 41 is located; the area information is Any second unitized MCU (the unitized MCU 43 that performs the call routing service) of the area where the terminal 41 is located is reported by the call routing service; the second unitized MCU is the one found by the registration server 42 according to the registration information of the terminal 41. Any unitized MCU 43 in the area. That is, the terminal 41 calls the conference (by the conference number).
  • the registration server 42 first finds any of the unitized MCUs 43 in the same area according to the registration information of the terminal 41 and starts the call routing service of the unitized MCU 43;
  • a unitized MCU (which can be randomly selected in the area where the terminal 41 initiating the conference is located, as long as the conference scheduling service requirement is met) needs to manage and schedule the conference resources of the entire conference, and therefore, it receives the conference call request of the terminal 41.
  • the area information of the area where the terminal 41 is reported by the second routing MCU through the call routing service is also received.
  • the terminal 41 registration information is registration information after the terminal 41 registers in the registration server 42 to which the area belongs; the area information is a unitized MCU 43 in the area. Registration information after registration in the registration server 42 to which the area belongs; the registration server 42 is a GK server or a SIP server.
  • the first unitized MCU selects a third unitized MCU (unitized MCU 43 that performs call control service) according to the area information and a preset rule to perform a call control service, and the third The unitized MCU address is returned to the terminal 41; that is, in the embodiment, the first unitized MCU determines, by the first unitized MCU, the third unitized MCU that the terminal 41 should access, and uses the second unitized MCU to The third unitized MCU address is returned to the registration server 42 and then returned to the terminal 41. It can be understood that the first unitized MCU, the third unitized MCU, and the second unitized MCU may be different units.
  • the MCU 43 can also be the same unitized MCU 43 if it meets the requirements.
  • step S30 the first unitized MCU receives a call request of the terminal 41 for a third unitized MCU address, and allocates the third unitized MCU to the terminal 41; that is, the terminal After the third unitized MCU address determined in the above step S20 is called, the conference scheduling MCU of the conference allocates the third unitized MCU to the terminal 41 to perform terminal 41 call control service, and causes the third unit to The MCU performs signaling interaction with the terminal 41.
  • step S40 after receiving the media processing capability requirement of the terminal 41, the first unitized MCU, in the area, the fourth unitized MCU that satisfies the requirement in the area (the unit that performs the media processing service of the terminal 41)
  • the MCU 43 is assigned to the terminal 41 to perform the terminal 41 media processing service. That is, the third unitized MCU performs signaling interaction with the terminal 41, and the terminal 41 sends a request for the media processing capability requirement of the fourth unitized MCU to the first unitized MCU,
  • the first unitized MCU allocates a fourth unitized MCU that conforms to the media processing capability to the terminal 41 in the area where the terminal 41 is located.
  • the third unitized MCU and the fourth unitized MCU described above may be different unitized MCUs 43 and may be the same unitized MCU 43 if some meet the requirements.
  • the unitized MCU 43 is deployed in multiple areas, and the division of the area can be performed by the registration server 42 described above, and a registration server 42 is deployed in each area, and each end point ( Including the terminal 41 and the unitized MCU 43) registering at the same registration server 42 is automatically divided into endpoint devices of the same region (i.e., both belong to the region).
  • each unitized MCU 43 (which may be simply referred to as a node) in a conference performs cascading (specifically, media cascading), that is, how each unitized MCU 43 is distributed in each area, from a dynamic perspective Look, you need to consider: whether a call will be connected to an existing node or a new assigned node after the call; if it is an existing node, which node is connected to it; if it is a new assigned node, which area to use Assign nodes.
  • the above considerations are closely related to factors such as the area where the terminal 41 is located, the area where the MCU is located, the network bandwidth between the terminal 41 and the MCU, and the network bandwidth between the MCUs.
  • each call of the terminal 41 is always in the vicinity of the node accessing the area where the terminal 41 is located, and the video conference is guaranteed, and the bandwidth of the same area is guaranteed, and at the same time, it is relatively inexpensive.
  • the user and the division of the area are completed before the networking, and the registration server 42 is deployed in each area, so the above embodiment greatly reduces the inter-area bandwidth usage.
  • each MCU in the present disclosure is a complete functional unit, and different service programs can be dynamically generated and executed; and each terminal 41 of the video conference of the present disclosure is assigned a different unitized MCU 43 (The third unitized MCU performs the call control service, so that the terminal 41 call control service is distributed, and load balancing is implemented; at the same time, each terminal 41 is correspondingly assigned a unitized MCU 43 (fourth unitized MCU) execution terminal 41.
  • the media processing service, the present disclosure uses a plurality of unitized MCUs 43 to jointly implement a media cascading of a conference; and can dynamically adjust the cascading relationship as needed according to the dynamic access situation of the large-capacity conference terminal 41 during the Internet video conference. , thereby reducing the system use bandwidth and ensuring that the system delay is controllable.
  • step S50 is a flow chart of a video conference multipoint control method according to another embodiment of the present disclosure.
  • the method in addition to steps S10 through S40 shown in FIG. 1, the method further includes step S50.
  • step S50 after the first unitized MCU is on the terminal 41, the fifth unitized MCU (the unitized MCU 43 that performs the multipoint conference control service) is allocated to the conference accessed by the terminal 41.
  • the multipoint conference control service is executed, and the corresponding sixth unitized MCU (the unitized MCU 43 of the conference media service) is allocated to all the areas associated with the conference to perform the conference media service.
  • the fifth unitized MCU and the sixth unitized MCU are both unitized MCUs 43.
  • the service functions of the unitized MCU 43 further include a multipoint conference control service and a conference media service.
  • the first unitized MCU starts to allocate a fifth unitized MCU to the conference after at least one terminal 41, and allocates a corresponding sixth unitized MCU to each area participating in the conference. It can be understood that each area is correspondingly assigned a sixth unitized MCU that performs the conference media service; however, each terminal 41 allocates a fourth unitized MCU that performs the media processing service of the terminal 41.
  • FIG. 3 is a flowchart of a video conference multipoint control method according to still another embodiment of the present disclosure.
  • the method in addition to step S10 to step S50 shown in FIG. 2, the method further includes step S60 and step S70.
  • step S60 the first unitized MCU receives the call hangup information of the terminal 41, and releases the third unitized MCU and the fourth unitized MCU; that is, after the terminal 41 exits the conference.
  • the third unitized MCU and the fourth unitized MCU corresponding to the terminal 41 are released one by one, and the third unitized MCU and the fourth unitized MCU allocated to the terminal 41 are restored to the unitized MCU. The next meeting schedule.
  • step S70 the first unitized MCU receives a conference end notification, and releases the fifth unitized MCU and the sixth unitized MCU. That is, after the conference ends, the fifth unitized MCU and the sixth unitized MCU corresponding to the conference are released, and the fifth unitized MCU and the sixth unitized MCU allocated to the conference are restored to unitized. MCU 43, wait for the next conference schedule.
  • the first unitized MCU of the conference scheduling service is executed, the second unitized MCU reporting the area information to perform the call routing service, and the third unitized MCU executing the terminal 41 call control service
  • the fourth unitized MCU that performs the media processing service of the terminal 41, the fifth unitized MCU that performs the multipoint conference control service, and the sixth unitized MCU that performs the conference media service are all unitized MCUs 43. Generated after starting a pre-deployed service program based on the dynamic requirements of the meeting resources in the meeting.
  • the unitized MCU 43 includes a plurality of sub-services including, but not limited to, a conference scheduling service, a call routing service, a terminal 41 call control service, a multipoint conference control service, a terminal 41 media processing service, and a conference media service, in one implementation.
  • the above sub-services mainly include the following contents.
  • Conference scheduling service configured to manage all resources in the entire conference, including signaling resources, media resources, etc.
  • the conference scheduling service requests sufficient resources for each conference.
  • the first unitized MCU corresponding to the conference scheduling service needs to communicate with all other MCUs in the conference.
  • the call routing service provides various protocols, and the terminal 41 calls the conference or conference to the terminal 41 according to a preset rule or randomly routes to a call control service to achieve load balancing.
  • the call routing service should support multiple standard protocols, including H323, SIP, and so on.
  • Each call corresponds to one call control service, and each call control service is responsible for media negotiation, channel control, etc. of the local call, and is responsible for connecting the call of the terminal 41 to the multipoint conference control service.
  • Each multipoint conference control service is responsible for conference control of a conference, interacts with the call control service accessing the conference, the media processing service of the terminal 41, and the conference media service to implement service control of the multipoint conference.
  • the terminal 41 media processing service and conference media service include: receiving the media data of the terminal 41, forwarding, decoding, synthesizing, encoding, packing, and transmitting data between the MCUs.
  • the multi-point conference control service controls the specific business functions, including whether or not to cascade.
  • the media processing service and the conference media service of the terminal 41 are different media services, and can be generated according to actual needs.
  • the sub-services deployed by the unitized MCU 43 are not limited to the above services.
  • the above sub-services are an abstract division of the system function partitioning.
  • the service names are different because of the description methods. Changes in the number of services and changes in the number of services make the changes made by the sub-services within the protection scope of the present disclosure.
  • the present disclosure further provides a video conference multipoint control method, the method comprising: a first unitized MCU (the unitized MCU 43 performing the conference scheduling service) receives a conference call to the terminal 41 through a conference scheduling service. Requesting, in the area to which the terminal 41 belongs, to allocate a third unitized MCU (unitized MCU 43 that performs call control service) to the terminal 41 to perform a call control service, and to make the third unitized MCU and the The terminal 41 performs a signaling interaction; after receiving the media processing capability requirement of the terminal 41, the first unitized MCU selects a fourth unitized MCU that satisfies the requirement in the area (executing terminal 41 media processing service) The unitized MCU 43) is assigned to the terminal 41 to perform the terminal 41 media processing service; that is, in the embodiment, when the first unitized MCU receives the conference call request for a certain terminal 41, the The first unitized MCU allocates a third unitized MCU to the terminal 41 in the area to which the terminal 41 belongs
  • the fourth unitized MCU that satisfies the media processing capability requirement in the area is allocated to the terminal 41.
  • the third unitized MCU and the fourth unitized MCU described above may be different unitized MCUs 43 and may be the same unitized MCU 43 if some meet the requirements.
  • the subsequent steps of the method in this embodiment are the same as the above steps S50 to S70, that is, after the first unitized MCU is on the terminal 41, the fifth unitized MCU is allocated to the conference accessed by the terminal 41.
  • the unitized MCU 43 of the multipoint conference control service performs the multipoint conference control service, and respectively allocates corresponding sixth unitized MCUs (unitized MCUs 43 for performing conference media services) to all the areas associated with the conferences.
  • the first unitized MCU receives the call hangup information of the terminal 41, and releases the third unitized MCU and the fourth unitized MCU; the first unitized MCU receives the conference end Notifying that the fifth unitized MCU and the sixth unitized MCU are released.
  • each area is assigned a sixth unitized MCU, and each area has a plurality of terminals 41 below, and each terminal 41 is correspondingly assigned a fourth unitized MCU, and the fourth unitization of the plurality of areas
  • the MCU works in conjunction with the sixth unitized MCU.
  • the fourth unitized MCU of the plurality of regions cooperates with the sixth unitized MCU as follows: the terminal 41 is configured to send the media code stream to the fourth unit corresponding thereto by means of network packing The media stream includes audio and video; the fourth unitized MCU is configured to, after receiving the media stream, encode the media stream and send it to the sixth unit in the area.
  • the sixth unitized MCU is configured to forward the encoded media code stream to the sixth unitized MCU of the area to which the demand terminal 41 belongs according to the selection requirement of the other required terminals 41 of the conference, and
  • the third unitized MCU of the associated area is passed to the demand terminal 41 after re-encoding it.
  • the terminal 41 selected by all the conference sites generally has no more than two different pictures (the broadcast end + the selected end, and the definition of the broadcast end is the terminal 41 that the other terminal 41 looks at except the broadcast source itself.
  • the terminal is the broadcast source terminal 41), so the conference media forwarding pressure is not large, so the above solution is completely feasible in the actual use scenario of the video conference, and the dynamic access requirement of the large-capacity conference terminal 41 is satisfied,
  • the level of the system is no more than 2 times, which also effectively controls the system delay.
  • the fourth unitized MCU (the unitized MCU 43 of the media processing service of the terminal 41) associated with each terminal 41, the fourth unitized MCU has been implemented in the above embodiment. Load balancing, so the system can effectively achieve elastic scaling. Therefore, the method of the present disclosure achieves the effects of elastic expansion and dynamic expansion, saves bandwidth, and improves user experience.
  • a video conference multipoint control apparatus may include: a terminal 41, a registration server 42 and a unitized MCU 43.
  • the service functions of the unitized MCU 43 include a conference scheduling service, a call routing service, a terminal 41 call control service, and a terminal 41 medium.
  • the unitized MCU 43 includes a first unitized MCU, a second unitized MCU, a third unitized MCU, and a fourth unitized MCU, that is, a first unitized MCU, a second unitized MCU, and a third unitized Both the MCU and the fourth unitized MCU are unitized MCUs 43.
  • the first unitized MCU is configured to receive the conference call request of the terminal 41 through the conference scheduling service, and receive the area information of the area where the terminal 41 is located, where the area information is any second unit of the area where the terminal 41 is located.
  • the MCU is reported by the call routing service; the third unitized MCU is selected according to the area information and the preset rule to execute the call control service, and the third unitized MCU address is returned to the terminal 41; and the terminal is received.
  • 41 a call request for a third unitized MCU address, and assigning the third unitized MCU to the terminal 41; after receiving the media processing capability request of the terminal 41, satisfying the The required fourth unitized MCU is allocated to the terminal 41 to perform the terminal 41 media processing service.
  • the first unitized MCU is further configured to: after the terminal 41 meets, allocate a fifth unitized MCU to the conference accessed by the terminal 41 to perform a multipoint conference control service, and Allocating a corresponding sixth unitized MCU to all the areas associated with the conference to perform a conference media service; wherein the fifth unitized MCU and the sixth unitized MCU are unitized MCUs 43, the unitized MCU
  • the business functions of 43 also include multipoint conference control services and conference media services.
  • the first unitized MCU is further configured to: receive call suspension information of the terminal 41, release the third unitized MCU and the fourth unitized MCU; and receive a conference end notification, The fifth unitized MCU and the sixth unitized MCU are released.
  • the terminal 41 is configured to send a media code stream to the fourth unitized MCU corresponding thereto by means of network packing; the media code stream includes audio and video; and the fourth unitization
  • the MCU is configured to, after receiving the media code stream, encode the media code stream and send it to a sixth unitized MCU in the local area; the sixth unitized MCU is configured to be according to other requirements of the conference Receiving, by the terminal 41, the encoded media code stream is forwarded to the sixth unitized MCU of the area to which the demand terminal 41 belongs, and is transmitted to the third unitized MCU of the belonging area after re-encoding the same Demand terminal 41.
  • the first unitized MCU is further configured to: receive a conference call request for the terminal 41 by using a conference scheduling service, and allocate a third unitized MCU to the terminal 41 in an area to which the terminal 41 belongs. Performing a call control service, and causing the third unitized MCU to perform signaling interaction with the terminal 41; after receiving the media processing capability requirement of the terminal 41, the fourth content in the area that satisfies the requirement
  • the unitized MCU is allocated to the terminal 41 to perform the terminal 41 media processing service; after the terminal 41, the fifth unitized MCU is allocated to the conference accessed by the terminal 41 to perform the multipoint conference control service, and Respectively assigning a corresponding sixth unitized MCU to each of the areas associated with the conference to perform a conference media service; receiving call hang up information of the terminal 41, releasing the third unitized MCU and the fourth unitization
  • the MCU receives the conference end notification and releases the fifth unitized MCU and the sixth unitized MCU.
  • the video conference multi-point control apparatus of the foregoing embodiment uses the manner in which each call of the terminal 41 is always close to the node in the area where the terminal 41 is located, because the bandwidth of the same area can be guaranteed, and both At the same time, in the embodiment of the present disclosure, the user and the division of the area are completed before the networking, and the registration server 42 is deployed in each area, so the above embodiment greatly reduces the inter-area bandwidth usage.
  • each MCU in the present disclosure is a complete functional unit, and different service programs can be dynamically generated and executed; and each terminal 41 of the video conference of the present disclosure is assigned a different unitized MCU 43 (third unitization)
  • the MCU performs the call control service, so that the call control service of the terminal 41 is distributed, and load balancing is implemented.
  • each terminal 41 is correspondingly assigned a unitized MCU 43 (fourth unitized MCU) to execute the terminal 41 media processing service.
  • the present disclosure uses a plurality of unitized MCUs 43 to cooperatively implement a media cascading of a conference; and can dynamically adjust the cascading relationship as needed according to the dynamic access situation of the large-capacity conference terminal 41 during the Internet video conference, thereby reducing the cascading relationship.
  • the system uses bandwidth to ensure that the system delay is controllable.
  • a computer readable storage medium having stored thereon computer executable instructions, the computer executable instructions being executed by a processor, causing the processor to perform the following Step: receiving the conference call request of the terminal 41 by the conference scheduling service, and receiving the area information of the area where the terminal 41 is located; the area information is reported by the second routing MCU of the area where the terminal 41 is located by the call routing service; Selecting a third unitized MCU according to the area information and a preset rule to perform a call control service, and returning the third unitized MCU address to the terminal 41; receiving the terminal 41 for a third unitized MCU address Call request, and assigning the third unitized MCU to the terminal 41; after receiving the media processing capability requirement of the terminal 41, allocating the fourth unitized MCU in the area that satisfies the requirement The terminal 41 is given the terminal 41 media processing service.
  • the processor when the computer executable instructions are executed by the processor, the processor is further caused to perform the step of: assigning a fifth unitized MCU to the conference accessed by the terminal 41 to perform after the terminal 41 is met
  • the multi-point conference control service is configured to allocate a corresponding sixth unitized MCU to all areas associated with the conference to perform a conference media service; wherein the fifth unitized MCU and the sixth unitized MCU are unitized MCUs. 43.
  • the service function of the unitized MCU 43 further includes a multipoint conference control service and a conference media service.
  • the processor when the computer executable instructions are executed by the processor, the processor is further caused to perform the steps of: receiving call hang up information of the terminal 41, releasing the third unitized MCU and the fourth unitization
  • the MCU receives the conference end notification and releases the fifth unitized MCU and the sixth unitized MCU.
  • the processor when the computer executable instructions are executed by the processor, the processor is further caused to perform the step of receiving a conference call request for the terminal 41 by the conference scheduling service, the terminal 41 being within the area to which the terminal 41 belongs. Allocating a third unitized MCU to perform a call control service, and causing the third unitized MCU to perform signaling interaction with the terminal 41; after receiving the media processing capability requirement of the terminal 41, the area is A fourth unitized MCU that satisfies the requirement is allocated to the terminal 41 to perform a media processing service of the terminal 41; after the terminal 41, a fifth unitized MCU is allocated for the conference accessed by the terminal 41 to perform Multi-point conference control service, and each of the areas associated with the conference is respectively assigned a corresponding sixth unitized MCU to perform a conference media service; receiving call hang up information of the terminal 41, releasing the third unitized MCU And the fourth unitized MCU; receiving the conference end notification, releasing the fifth unitized MCU and the sixth unitized MCU.
  • the processor when the computer executable instructions are executed by the processor, the processor further causes the processor to: transmit the media code stream to the fourth unitized MCU corresponding thereto by means of network packing; the media code The stream includes audio and video; when the media code stream is received, the media code stream is encoded and then sent to a sixth unitized MCU in the local area; according to other requirements of the conference, the selection requirement of the terminal 41 And transmitting the media code stream after the encoding to the sixth unitized MCU of the area to which the demand terminal 41 belongs, and transmitting the code to the demand terminal 41 after re-encoding the third unitized MCU of the belonging area.
  • each MCU is a complete functional unit, and different service programs can be dynamically generated and executed; and each terminal 41 of the video conference of the present disclosure is assigned a different unitized MCU 43 (third unit) The MCU performs the call control service, so that the call control service of the terminal 41 is distributed, and load balancing is implemented. At the same time, each terminal 41 is correspondingly assigned a unitized MCU 43 (fourth unitized MCU) to execute the terminal 41 media processing service.
  • the present disclosure uses a plurality of unitized MCUs 43 to cooperatively implement a media cascading of a conference; and can dynamically adjust the cascading relationship as needed according to the dynamic access situation of the large-capacity conference terminal 41 during the Internet video conference, thereby reducing
  • the system uses bandwidth to ensure that the system delay is controllable.
  • a computer apparatus comprising a memory and a processor, the memory storing computer readable instructions that, when executed by the processor, cause the processor to execute The following steps: receiving the conference call request of the terminal 41 through the conference scheduling service, and receiving the area information of the area where the terminal 41 is located; the area information is that any second unitized MCU of the area where the terminal 41 is located is reported by the call routing service.
  • the processor when the computer readable instructions are executed by the processor, the processor is further caused to perform the step of assigning a fifth unitized MCU to the conference accessed by the terminal 41 to perform after the terminal 41
  • the multi-point conference control service is configured to allocate a corresponding sixth unitized MCU to all areas associated with the conference to perform a conference media service; wherein the fifth unitized MCU and the sixth unitized MCU are unitized MCUs. 43.
  • the service function of the unitized MCU 43 further includes a multipoint conference control service and a conference media service.
  • the processor when the computer readable instructions are executed by the processor, the processor further causes the processor to perform the steps of: receiving call hang up information of the terminal 41, releasing the third unitized MCU and the fourth unitization
  • the MCU receives the conference end notification and releases the fifth unitized MCU and the sixth unitized MCU.
  • the processor when the computer readable instructions are executed by the processor, the processor is further caused to perform the step of receiving a conference call request for the terminal 41 by the conference scheduling service, the terminal 41 being within the area to which the terminal 41 belongs. Allocating a third unitized MCU to perform a call control service, and causing the third unitized MCU to perform signaling interaction with the terminal 41; after receiving the media processing capability requirement of the terminal 41, the area is A fourth unitized MCU that satisfies the requirement is allocated to the terminal 41 to perform a media processing service of the terminal 41; after the terminal 41, a fifth unitized MCU is allocated for the conference accessed by the terminal 41 to perform Multi-point conference control service, and each of the areas associated with the conference is respectively assigned a corresponding sixth unitized MCU to perform a conference media service; receiving call hang up information of the terminal 41, releasing the third unitized MCU And the fourth unitized MCU; receiving the conference end notification, releasing the fifth unitized MCU and the sixth unitized MCU.
  • the processor when the computer readable instructions are executed by the processor, the processor further causes the processor to: transmit the media code stream to the fourth unitized MCU corresponding thereto by means of network packing; the media code The stream includes audio and video; when the media code stream is received, the media code stream is encoded and then sent to a sixth unitized MCU in the local area; according to other requirements of the conference, the selection requirement of the terminal 41 Transmitting the media code stream after the encoding to the sixth unitized MCU of the area to which the demand terminal 41 belongs, and transmitting it to the demand terminal 41 after re-encoding the third unitized MCU of the belonging area.
  • each MCU is a complete functional unit, and different service programs can be dynamically generated and executed; and each terminal 41 of the video conference of the present disclosure is assigned a different unitized MCU 43 (third unitized MCU)
  • the call control service is executed, so that the call control service of the terminal 41 is distributed, and load balancing is implemented.
  • each terminal 41 is correspondingly assigned a unitized MCU 43 (fourth unitized MCU) to execute the terminal 41 media processing service, and the present disclosure
  • the media cascading of a conference is implemented by using multiple unitized MCUs 43; and the cascading relationship can be dynamically adjusted according to the dynamic access situation of the large-capacity conference terminal 41 during the network video conference, thereby reducing system usage. Bandwidth ensures that the system delay is controllable.
  • the program can be stored in a computer readable storage medium, such as the present disclosure.
  • the program can be stored in a storage medium of the computer system and executed by at least one processor in the computer system to implement a process comprising an embodiment of the methods as described above.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

本申请提供了视频会议多点控制方法、装置、存储介质和计算机设备。所述方法包括：第一单元化多点控制单元MCU通过会议调度服务接收终端的会议呼叫请求，并接收终端所在区域的区域信息；区域信息为终端所在区域的任意第二单元化MCU通过呼叫路由服务上报；第一单元化MCU根据区域信息以及预设规则选取第三单元化MCU以执行呼叫控制服务，并将第三单元化MCU地址返回至终端；第一单元化MCU接收终端对于第三单元化MCU地址的呼叫请求，并将第三单元化MCU分配给终端；第一单元化MCU在接收到终端的媒体处理能力要求之后，将区域内满足要求的第四单元化MCU分配给终端以执行终端媒体处理服务。

Description

视频会议多点控制方法、装置、存储介质和计算机设备 技术领域
本公开涉及但不限于通信技术领域。
背景技术
多点控制单元(Multi-point Control Unit，MCU)是控制多点会议系统的网络节点，也是负责视频会议中的终端的信令接入以及音视频等媒体数据的合成转发等的一个关键网元。基于互联网的视频会议的MCU相对于传统的MCU，除了必须具备传统MCU的功能外，还需要解决互联网视频会议的特定需求。
在一些情况下，要完成这样的会议，需要采用多个单元化MCU协同工作，这里，多个单元化MCU通过一定拓扑关系连接在一起完成会议的方式称为级联。
目前已经有部分厂家采用级联的方式解决会议接入的问题，但是用户配置使用的门槛比较高；同时，由于采用级联方式，媒体码流的发送必须要从MCU之间进行转发，对带宽使用、以及实时性的体验等都存在相当大的考验。
发明内容
一方面，本公开提供了一种视频会议多点控制方法，所述方法包括：第一单元化多点控制单元(MCU)通过会议调度服务接收终端的会议呼叫请求，并接收所述终端所在区域的区域信息；所述区域信息为所述终端所在区域的任意第二单元化MCU通过呼叫路由服务上报；所述第一单元化MCU根据所述区域信息以及预设规则选取第三单元化MCU以执行呼叫控制服务，并将所述第三单元化MCU地址返回至所述终端；所述第一单元化MCU接收所述终端对于第三单元化MCU地址的呼叫请求，并将所述第三单元化MCU分配给所述终端；所述第一单元化MCU在接收到所述终端的媒体处理能力要求之后，将所述区域内满足所述要求的第四单元化MCU分配给所述终端以执行终端媒 体处理服务。
另一方面，本公开还提供了一种视频会议多点控制方法，所述方法包括：第一单元化多点控制单元(MCU)通过会议调度服务接收会议对于终端的呼叫请求，在所述终端所属区域内为所述终端分配第三单元化MCU以执行呼叫控制服务，并令所述第三单元化MCU与所述终端进行信令交互；所述第一单元化MCU在接收到所述终端的媒体处理能力要求之后，将所述区域内满足所述要求的第四单元化MCU分配给所述终端以执行终端媒体处理服务；所述第一单元化MCU在所述终端上会之后，为所述终端接入的会议分配第五单元化MCU以执行多点会议控制服务，并分别为所述会议关联的所有区域各自分配对应的第六单元化MCU以执行会议媒体服务；所述第一单元化MCU接收所述终端的呼叫挂断信息，释放所述第三单元化MCU和所述第四单元化MCU；所述第一单元化MCU接收会议结束通知，释放所述第五单元化MCU和所述第六单元化MCU。
另一方面，本公开还提供了一种视频会议多点控制装置，包括：终端、注册服务器和单元化多点控制单元(MCU)，所述单元化MCU的业务功能包括会议调度服务、呼叫路由服务、终端呼叫控制服务和终端媒体处理服务，所述单元化MCU包括第一单元化MCU、第二单元化MCU、第三单元化MCU和第四单元化MCU；所述第一单元化MCU配置为：通过会议调度服务接收终端的会议呼叫请求，并接收所述终端所在区域的区域信息，所述区域信息为所述终端所在区域的任意第二单元化MCU通过呼叫路由服务上报；根据所述区域信息以及预设规则选取第三单元化MCU以执行呼叫控制服务，并将所述第三单元化MCU地址返回至所述终端；接收所述终端对于第三单元化MCU地址的呼叫请求，并将所述第三单元化MCU分配给所述终端；在接收到所述终端的媒体处理能力要求之后，将所述区域内满足所述要求的第四单元化MCU分配给所述终端以执行终端媒体处理服务。
另一方面，本公开还提供了一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机可执行指令，所述计算机可执行指令被处理器执行时，使得所述处理器执行本文所述的视频会议多点控 制方法中的一个或多个步骤。
另一方面，本公开还提供了一种计算机设备，包括存储器和处理器，所述存储器中储存有计算机可读指令，所述计算机可读指令被所述处理器执行时，使得所述处理器执行本文所述的视频会议多点控制方法中的一个或多个步骤。
附图说明
图1为根据本公开一个实施例的视频会议多点控制方法的流程图。
图2为根据本公开另一个实施例的视频会议多点控制方法的流程图。
图3为根据本公开又一个实施例的视频会议多点控制方法的流程图。
图4为根据本公开一个实施例的视频会议多点控制装置的结构框图。
具体实施方式
为了使本公开的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本公开进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本公开，并不用于限定本公开。
多点控制单元(Multi-point Control Unit，MCU)是控制多点会议系统的网络节点，也是负责视频会议中的终端的信令接入以及音视频等媒体数据的合成转发等的一个关键网元。由上述可知，基于互联网的视频会议的MCU相对于传统的MCU，除了必须具备传统MCU的功能外，还需要解决互联网视频会议的特定需求，首先会议一旦创建，就需要随时随地使用；其次，资源存在动态伸缩，不管接入终端数目多少，都需要能够动态分配资源支持；再次，由于终端接入的数目是不确定的，因此存在大规模终端接入的情况，此处对于大规模的定义是指超过一个传统多点控制单元(也即MCU)能够承受的能力，同时终端之间不能采用P2P(点到点-点对点)的方式，即每个终端都需 要把自己的媒体码流发送给其他终端，如此带宽的需求整个互联网也无法承受，要完成这样的会议，就必须要采用多个单元化MCU协同工作，这里，多个单元化MCU通过一定拓扑关系连接在一起完成会议的方式称为级联。
目前已经有部分厂家采用级联的方式解决会议接入的问题，但是目前，级联的方式都存在一个问题，级联关系都要提前设置好，无法在会议过程中根据终端实际接入情况动态调整级联关系，如此，用户配置使用的门槛比较高；同时，由于采用级联方式，媒体码流的发送必须要从MCU之间进行转发，对带宽使用、以及实时性的体验等都存在相当大的考验。
因此，本公开特别提供了视频会议多点控制方法、装置、存储介质和计算机设备，其实质上避免了相关技术中的缺点和局限所导致的问题中的一个或多个。
图4为根据本公开一个实施例的视频会议多点控制装置的结构框图。在本公开中，如图4所示，互联网的视频会议多点控制装置可以包括：终端41、注册服务器42、单元化MCU 43。这里，单元化MCU43即多点控制单元，终端41即视频会议的终端41。在本公开中，互联网被划分为多个区域，而不管是单元化MCU 43还是终端41，都可以视为互联网上的一个端点；而在所述注册服务器42上进行注册，是端点(所述终端41或者所述单元化MCU 43)接入一个区域的途径。该注册过程由标准协议规定，在一个端点将其传输地址和别名地址通报给注册服务器42之后，注册服务器42可以通过配置或者标准协议过程的自动发现过程来确定其接入的区域。在本公开中，所有端点必须在任何呼叫开始之前通过所述注册服务器42注册到某特定区域。本公开中的视频会议的终端41以及注册服务器42，在终端41为H323视频会议终端的情况下，注册服务器42为网守GK(GateKeeper)服务器；在终端41为会话初始协议SIP(Session Initiation Protocol)视频会议终端的情况下，注册服务器42为SIP服务器，以上均为标准的网元，在此不再赘述。
在本公开中，所述单元化MCU 43代表每个MCU都是完整的功能 单元，且每个单元化MCU 43均被部署在互联网或者局域网中，且其不管采用哪种组网方式部署，每个单元化MCU 43的节点上都部署了多项子服务(业务功能)，且所述单元化MCU 43可以根据会议资源的动态需求而动态启动与实现该单元化MCU 43下的所有子服务对应的业务，只需要按需启动该部分子服务的业务对应的服务程序即可。在一个实施例中，上述单元化MCU 43，包含但不限定于为会议调度服务、呼叫路由服务、终端41呼叫控制服务，多点会议控制服务，终端41媒体处理服务、会议媒体服务等子服务。
可理解的，本公开实施例中的第一单元化MCU、第二单元化MCU、第三单元化MCU、第四单元化MCU、第五单元化MCU和第六单元化MCU均为单元化MCU 43，上述单元化MCU 43均可以根据会议的动态需求启动子服务对应的服务程序。例如，在一些实施例中，第一单元化MCU需要执行会议调度服务，第二单元化MCU需要执行呼叫路由服务，第三单元化MCU需要执行呼叫控制服务，第四单元化MCU需要执行终端41媒体处理服务，第五单元化MCU需要执行多点会议控制服务，第六单元化MCU需要执行会议媒体服务。可理解的是，在一些实施例中，上述第一单元化MCU、第二单元化MCU、第三单元化MCU、第四单元化MCU、第五单元化MCU和第六单元化MCU中的两个或者多个可以是同一个单元化MCU 43，其在不同状态下执行不同的业务功能。一个单元化MCU 43的子服务被启动之后亦可根据会议资源的动态需求进行撤销，此时，生成的对应各类子服务的MCU会被还原为单元化MCU 43，并可接受下一次的会议调度。上述单元化MCU 43，在做到可以动态生成上述服务、销毁上述相关服务的同时，保证了会议资源的动态伸缩。
在一个实施例中，上述单元化MCU 43，要实现相互之间的通讯，可采用但不局限于远程过程调用(RPC)或者是套接字(SOCKET)等的方式，只要该通讯方式满足互联网中跨主机之间消息通讯要求即可。
图1为根据本公开一个实施例的视频会议多点控制方法的流程图。如图1和图4所示，在一个实施例中，提供一种视频会议多点控制方法，包括步骤S10至S40。
在步骤S10中，第一单元化MCU(执行会议调度服务的单元化MCU 43)通过会议调度服务接收终端41的会议呼叫请求，并接收所述终端41所在区域的区域信息；所述区域信息为所述终端41所在区域的任意第二单元化MCU(执行呼叫路由服务的单元化MCU 43)通过呼叫路由服务上报；所述第二单元化MCU为注册服务器42根据终端41注册信息找到的所述区域中任意的单元化MCU 43。也即，终端41(通过会议号码)呼叫会议，此时，首先注册服务器42根据终端41的注册信息找到同一区域中任一单元化MCU 43，并启动该单元化MCU43的呼叫路由服务；由于第一单元化MCU(可以在发起会议的终端41所在的区域内随机选取，只要满足会议调度服务要求即可)需要管理和调度整个会议的会议资源，因此，其在接收到终端41的会议呼叫请求时，还接收到第二单元化MCU通过呼叫路由服务上报的所述终端41所在区域的区域信息。在一个实施例中，所述终端41注册信息为所述终端41在所述区域所属的注册服务器42中进行注册之后的注册信息；所述区域信息为所述区域内的单元化MCU 43在所述区域所属的注册服务器42中进行注册之后的注册信息；所述注册服务器42为GK服务器或SIP服务器。
在步骤S20中，所述第一单元化MCU根据所述区域信息以及预设规则选取第三单元化MCU(执行呼叫控制服务的单元化MCU 43)以执行呼叫控制服务，并将所述第三单元化MCU地址返回至所述终端41；也即，本实施例中，由第一单元化MCU判断所述终端41应该接入的第三单元化MCU，并通过所述第二单元化MCU把所述第三单元化MCU地址返回给注册服务器42，再返回给所述终端41；可以理解的是，上述第一单元化MCU、第三单元化MCU、第二单元化MCU可以是不同的单元化MCU 43，在某些满足需求的情况下，也可以是相同的单元化MCU 43。
在步骤S30中，所述第一单元化MCU接收所述终端41对于第三单元化MCU地址的呼叫请求，并将所述第三单元化MCU分配给所述终端41；也即，所述终端41在呼叫上述步骤S20中确定的第三单元化MCU地址之后，该会议的会议调度MCU将该第三单元化MCU分配给所 述终端41进行终端41呼叫控制服务，并让所述第三单元化MCU与所述终端41进行信令交互。
在步骤S40中，所述第一单元化MCU在接收到所述终端41的媒体处理能力要求之后，将所述区域内满足所述要求的第四单元化MCU(执行终端41媒体处理服务的单元化MCU 43)分配给所述终端41以执行终端41媒体处理服务。也即，所述第三单元化MCU与所述终端41进行信令交互，且所述终端41向所述第一单元化MCU发送对于第四单元化MCU的媒体处理能力要求的请求，此时，所述第一单元化MCU在所述终端41所在区域中给该终端41分配符合该媒体处理能力的第四单元化MCU。上述的第三单元化MCU和第四单元化MCU可以是不同的单元化MCU 43，在某些满足需求的情况下，也可以是相同的单元化MCU 43。
上述视频会议多点控制方法，单元化MCU 43部署在多个区域中，且区域的划分可以由上述的注册服务器42来进行，且每个区域中均会部署一个注册服务器42，而各个端点(包括终端41与单元化MCU 43)在同一注册服务器42进行注册就会被自动划分为该同一区域的端点设备(也即两者均属于该区域)。在本公开中，一个会议中各个单元化MCU 43(可简称为节点)如何进行级联(具体指媒体级联)，也即指各个单元化MCU 43在各区域中如何分布，从动态角度来看，就是需要考虑：一个呼叫在上会之后是接入现有节点，还是新分配节点；如果是接入现有节点，该接入哪个区域的节点；如果是新分配节点，该从哪个区域分配节点。以上考虑与终端41所在区域、MCU所在区域、终端41与MCU之间的网络带宽、MCU之间的网络带宽等因素息息相关。本公开中，采用终端41的每个呼叫总是就近接入该终端41所在区域的节点的方式来进行视频会议，由于同一个区域的带宽都是可以保证，而且都是比较廉价的，同时，本公开实施例中用户以及在组网之前便做好了区域的划分，并且在各区域均部署注册服务器42，因此上述实施例大大降低了区域间带宽使用。
在上述实施例中，本公开中的每个MCU都是完整的功能单元，可以动态生成并执行不同的服务程序；且本公开的视频会议的各个终 端41均被分配不同的单元化MCU 43(第三单元化MCU)执行呼叫控制服务，使得终端41呼叫控制服务是分布式的，实现了负载均衡；同时，各终端41均对应分配有单元化MCU 43(第四单元化MCU)执行终端41媒体处理服务，本公开使用多个单元化MCU 43协同实现一个会议的媒体级联；且能够在进行互联网视频会议时，根据大容量会议终端41的动态接入的情况按需动态调整级联关系，从而降低了系统使用带宽，保证了系统延时可控。
图2为根据本公开另一个实施例的视频会议多点控制方法的流程图。在一个实施例中，如图2所示，除图1所示的步骤S10至S40以外，所述方法还包括步骤S50。
在步骤S50中，所述第一单元化MCU在所述终端41上会之后，为所述终端41接入的会议分配第五单元化MCU(执行多点会议控制服务的单元化MCU 43)以执行多点会议控制服务，并分别为所述会议关联的所有区域分配对应的第六单元化MCU(执行会议媒体服务的单元化MCU 43)以执行会议媒体服务。这里，所述第五单元化MCU和第六单元化MCU均为单元化MCU 43，所述单元化MCU 43的业务功能还包括多点会议控制服务和会议媒体服务。也即，所述第一单元化MCU在至少有一个终端41上会后，开始为该会议分配第五单元化MCU，以及给参与该会议的每个区域分配对应的第六单元化MCU。可理解的是，每个区域都会对应分配一个执行会议媒体服务的第六单元化MCU；但是每个终端41都会分配一个执行终端41媒体处理服务的第四单元化MCU。
图3为根据本公开又一个实施例的视频会议多点控制方法的流程图。在一个实施例中，如图3所示，除图2所示的步骤S10至步骤S50之外，所述方法还包括步骤S60和步骤S70。
在步骤S60中，所述第一单元化MCU接收所述终端41的呼叫挂断信息，释放所述第三单元化MCU和所述第四单元化MCU；也即，在终端41退出该会议之后，会释放与终端41一一对应的第三单元化MCU和第四单元化MCU，此时分配给该终端41的第三单元化MCU和第四单元化MCU会恢复为单元化MCU 43，等待下一次会议调度。
在步骤S70中，所述第一单元化MCU接收会议结束通知，释放所述第五单元化MCU和所述第六单元化MCU。也即，在会议结束之后，会释放与该会议对应的第五单元化MCU和第六单元化MCU，此时分配给该会议的第五单元化MCU和第六单元化MCU会恢复为单元化MCU 43，等待下一次会议调度。
在一个实施例中，执行会议调度服务的所述第一单元化MCU、上报区域信息以执行呼叫路由服务的所述第二单元化MCU、执行终端41呼叫控制服务的所述第三单元化MCU、执行终端41媒体处理服务的所述第四单元化MCU、执行多点会议控制服务的所述第五单元化MCU和执行会议媒体服务的所述第六单元化MCU，均为单元化MCU 43根据会议中对于会议资源的动态需求启动自身已预先部署的服务程序之后生成。上述单元化MCU 43部署了包含但不限定于会议调度服务、呼叫路由服务、终端41呼叫控制服务，多点会议控制服务，终端41媒体处理服务、会议媒体服务等多项子服务，在一个实施例中，上述子服务主要包含以下内容。
会议调度服务：配置为管理整个会议中所有资源，包括信令资源、媒体资源等，会议调度服务为每个会议申请足够资源。此外，会议调度服务对应的第一单元化MCU需要与该会议中其余所有MCU进行通讯。
呼叫路由服务：呼叫路由服务提供各种协议，且将终端41对会议或者会议对终端41的呼叫按照预设规则或随机路由到某个呼叫控制服务，达到负载均衡的目的。呼叫路由服务应该支持多种标准协议，包括H323、SIP等。
呼叫控制服务：每路呼叫对应一个呼叫控制服务，每个呼叫控制服务负责本路呼叫的媒体协商、信道控制等，并负责将终端41的呼叫接入到多点会议控制服务中。
多点会议控制服务：每个多点会议控制服务负责一个会议的会议控制，与接入该会议的呼叫控制服务、终端41媒体处理服务、会议媒体服务进行交互，实现多点会议的业务控制。
终端41媒体处理服务与会议媒体服务：包括终端41媒体数据 的接收，各MCU之间数据的转发、解码、合成、编码、打包、发送等。由多点会议控制服务控制实现具体的业务功能，包括是否级联等。其中终端41媒体处理服务与会议媒体服务是不同功能的媒体服务，可以根据实际需要生成的。
在本公开中，单元化MCU 43部署的子服务并不限定于上述服务，以上子服务为本公开对系统功能划分做的一种抽象划分，在本公开中，因为描述方法的不同，服务名称的变更以及服务数目的变更使得子服务产生的变化内容，都在本公开的保护范围内。
可理解的是，本公开还提供一种视频会议多点控制方法，所述方法包括：第一单元化MCU(执行会议调度服务的单元化MCU 43)通过会议调度服务接收会议对于终端41的呼叫请求，在所述终端41所属区域内为所述终端41分配第三单元化MCU(执行呼叫控制服务的单元化MCU 43)以执行呼叫控制服务，并令所述第三单元化MCU与所述终端41进行信令交互；所述第一单元化MCU在接收到所述终端41的媒体处理能力要求之后，将所述区域内满足所述要求的第四单元化MCU(执行终端41媒体处理服务的单元化MCU 43)分配给所述终端41以执行终端41媒体处理服务；也即，在本实施例中，在第一单元化MCU接收到会议对于某个终端41的呼叫请求时，所述第一单元化MCU在所述终端41所属区域内为所述终端41分配第三单元化MCU，并让所述第三单元化MCU与所述终端41进行信令交互。并在接收到所述终端41的媒体处理能力要求之后，将所述区域内满足所述媒体处理能力要求的第四单元化MCU分配给所述终端41。上述的第三单元化MCU和第四单元化MCU可以是不同的单元化MCU 43，在某些满足需求的情况下，也可以是相同的单元化MCU 43。本实施例方法的后续步骤同上述步骤S50至S70，也即：所述第一单元化MCU在所述终端41上会之后，为所述终端41接入的会议分配第五单元化MCU(执行多点会议控制服务的单元化MCU 43)以执行多点会议控制服务，并分别为所述会议关联的所有区域各自分配对应的第六单元化MCU(执行会议媒体服务的单元化MCU 43)以执行会议媒体服务；所述第一单元化MCU接收所述终端41的呼叫挂断信息，释放所述第三 单元化MCU和所述第四单元化MCU；所述第一单元化MCU接收会议结束通知，释放所述第五单元化MCU和所述第六单元化MCU。
在一个实施例中，每个区域分配有一个第六单元化MCU，每个区域下面有多个终端41，且每个终端41对应分配一个第四单元化MCU，多个区域的第四单元化MCU与第六单元化MCU协同工作。在本公开中，多个区域的第四单元化MCU与第六单元化MCU协同工作过程如下：所述终端41配置为通过网络打包的方式将媒体码流发送至与其对应的所述第四单元化MCU；所述媒体码流包括音频、视频；所述第四单元化MCU配置为在接收到所述媒体码流时，将所述媒体码流进行编码之后发送至本区域内的第六单元化MCU；所述第六单元化MCU配置为根据所述会议的其他需求终端41的选看需求，将编码之后的所述媒体码流转发给需求终端41所属区域的第六单元化MCU，并在所属区域的第三单元化MCU对其进行重新编码之后传递至所述需求终端41。从上述实施例中的方法可以看到，呼叫分配到不同的节点上来使得呼叫控制是分布式的，而对于会议业务处理，则采取集中处理的方式，通过集中的会议服务避免了传统级联方式下会议之间的呼叫控制以及主从会议之间的会议控制协同，从而简化了多点会议控制服务的实现，也减轻了信令转发带来的额外负担，不管终端41有多少，会议的信令控制消耗都比较有限。
在视频会议的实际使用场景中，所有会场的终端41选看的不同画面一般不超过2个(广播端+选看端，广播端的定义是除了广播源自己，其他终端41都看的终端41，选看端是广播源的终端41)，所以会议媒体转发压力不大，所以上述方案在视频会议的实际使用场景中完全可行，在满足大容量会议终端41的动态接入要求的同时，由于转发的层级不超过2次，也有效控制了系统延时。同时，由于编解码的压力全部都下放到各个终端41关联的第四单元化MCU(执行终端41媒体处理服务的单元化MCU 43)中，而第四单元化MCU已经在上述实施例中实现了负载均衡，所以该系统可以有效的实现弹性伸缩。因此，采用本公开所述方法，达到了弹性伸缩、动态扩展的效果，节省了带宽，提升了用户体验。
如图4所示，在一个实施例中，提供一种视频会议多点控制装置。所述频会议多点控制装置可以包括：终端41、注册服务器42和单元化MCU 43，所述单元化MCU 43的业务功能包括会议调度服务、呼叫路由服务、终端41呼叫控制服务和终端41媒体处理服务，单元化MCU 43包括第一单元化MCU、第二单元化MCU、第三单元化MCU和第四单元化MCU，也即第一单元化MCU、第二单元化MCU、第三单元化MCU和第四单元化MCU均为单元化MCU 43。
所述第一单元化MCU配置为：通过会议调度服务接收终端41的会议呼叫请求，并接收所述终端41所在区域的区域信息，所述区域信息为所述终端41所在区域的任意第二单元化MCU通过呼叫路由服务上报；根据所述区域信息以及预设规则选取第三单元化MCU以执行呼叫控制服务，并将所述第三单元化MCU地址返回至所述终端41；接收所述终端41对于第三单元化MCU地址的呼叫请求，并将所述第三单元化MCU分配给所述终端41；在接收到所述终端41的媒体处理能力要求之后，将所述区域内满足所述要求的第四单元化MCU分配给所述终端41以执行终端41媒体处理服务。
在一个实施例中，所述第一单元化MCU还配置为：在所述终端41上会之后，为所述终端41接入的会议分配第五单元化MCU以执行多点会议控制服务，并分别为所述会议关联的所有区域分配对应的第六单元化MCU以执行会议媒体服务；其中，所述第五单元化MCU和第六单元化MCU均为单元化MCU 43，所述单元化MCU 43的业务功能还包括多点会议控制服务和会议媒体服务。
在一个实施例中，所述第一单元化MCU还配置为：接收所述终端41的呼叫挂断信息，释放所述第三单元化MCU和所述第四单元化MCU；接收会议结束通知，释放所述第五单元化MCU和所述第六单元化MCU。
在一个实施例中，所述终端41配置为通过网络打包的方式将媒体码流发送至与其对应的所述第四单元化MCU；所述媒体码流包括音频、视频；所述第四单元化MCU配置为在接收到所述媒体码流时，将所述媒体码流进行编码之后发送至本区域内的第六单元化MCU；所述 第六单元化MCU配置为根据所述会议的其他需求终端41的选看需求，将编码之后的所述媒体码流转发给需求终端41所属区域的第六单元化MCU，并在所属区域的第三单元化MCU对其进行重新编码之后传递至所述需求终端41。
在一个实施例中，所述第一单元化MCU还配置为：通过会议调度服务接收会议对于终端41的呼叫请求，在所述终端41所属区域内为所述终端41分配第三单元化MCU以执行呼叫控制服务，并令所述第三单元化MCU与所述终端41进行信令交互；在接收到所述终端41的媒体处理能力要求之后，将所述区域内满足所述要求的第四单元化MCU分配给所述终端41以执行终端41媒体处理服务；在所述终端41上会之后，为所述终端41接入的会议分配第五单元化MCU以执行多点会议控制服务，并分别为所述会议关联的所有区域各自分配对应的第六单元化MCU以执行会议媒体服务；接收所述终端41的呼叫挂断信息，释放所述第三单元化MCU和所述第四单元化MCU；接收会议结束通知，释放所述第五单元化MCU和所述第六单元化MCU。
上述实施例的视频会议多点控制装置，采用终端41的每个呼叫总是就近接入该终端41所在区域的节点的方式来进行视频会议，由于同一个区域的带宽都是可以保证，而且都是比较廉价的，同时，本公开实施例中用户以及在组网之前便做好了区域的划分，并且在各区域均部署注册服务器42，因此上述实施例大大降低了区域间带宽使用。同时，本公开中的每个MCU都是完整的功能单元，可以动态生成并执行不同的服务程序；且本公开的视频会议的各个终端41均被分配不同的单元化MCU 43(第三单元化MCU)执行呼叫控制服务，使得终端41呼叫控制服务是分布式的，实现了负载均衡；同时，各终端41均对应分配有单元化MCU 43(第四单元化MCU)执行终端41媒体处理服务，本公开使用多个单元化MCU 43协同实现一个会议的媒体级联；且能够在进行互联网视频会议时，根据大容量会议终端41的动态接入的情况按需动态调整级联关系，从而降低了系统使用带宽，保证了系统延时可控。
在一个实施例中，还提供一种计算机可读存储介质，所述计算 机可读存储介质上存储有计算机可执行指令，所述计算机可执行指令被处理器执行时，使得所述处理器执行以下步骤：通过会议调度服务接收终端41的会议呼叫请求，并接收所述终端41所在区域的区域信息；所述区域信息为所述终端41所在区域的任意第二单元化MCU通过呼叫路由服务上报；根据所述区域信息以及预设规则选取第三单元化MCU以执行呼叫控制服务，并将所述第三单元化MCU地址返回至所述终端41；接收所述终端41对于第三单元化MCU地址的呼叫请求，并将所述第三单元化MCU分配给所述终端41；在接收到所述终端41的媒体处理能力要求之后，将所述区域内满足所述要求的第四单元化MCU分配给所述终端41以执行终端41媒体处理服务。
在一个实施例中，计算机可执行指令被处理器执行时，还使得处理器执行以下步骤：在所述终端41上会之后，为所述终端41接入的会议分配第五单元化MCU以执行多点会议控制服务，并分别为所述会议关联的所有区域分配对应的第六单元化MCU以执行会议媒体服务；其中，所述第五单元化MCU和第六单元化MCU均为单元化MCU 43，所述单元化MCU 43的业务功能还包括多点会议控制服务和会议媒体服务。
在一个实施例中，计算机可执行指令被处理器执行时，还使得处理器执行以下步骤：接收所述终端41的呼叫挂断信息，释放所述第三单元化MCU和所述第四单元化MCU；接收会议结束通知，释放所述第五单元化MCU和所述第六单元化MCU。
在一个实施例中，计算机可执行指令被处理器执行时，还使得处理器执行以下步骤：通过会议调度服务接收会议对于终端41的呼叫请求，在所述终端41所属区域内为所述终端41分配第三单元化MCU以执行呼叫控制服务，并令所述第三单元化MCU与所述终端41进行信令交互；在接收到所述终端41的媒体处理能力要求之后，将所述区域内满足所述要求的第四单元化MCU分配给所述终端41以执行终端41媒体处理服务；在所述终端41上会之后，为所述终端41接入的会议分配第五单元化MCU以执行多点会议控制服务，并分别为所述会议关联的所有区域各自分配对应的第六单元化MCU以执行会 议媒体服务；接收所述终端41的呼叫挂断信息，释放所述第三单元化MCU和所述第四单元化MCU；接收会议结束通知，释放所述第五单元化MCU和所述第六单元化MCU。
在一个实施例中，计算机可执行指令被处理器执行时，还使得处理器执行以下步骤：通过网络打包的方式将媒体码流发送至与其对应的所述第四单元化MCU；所述媒体码流包括音频、视频；在接收到所述媒体码流时，将所述媒体码流进行编码之后发送至本区域内的第六单元化MCU；根据所述会议的其他需求终端41的选看需求，将编码之后的所述媒体码流转发给需求终端41所属区域的第六单元化MCU，并在所属区域的第三单元化MCU对其进行重新编码之后传递至所述需求终端41。
上述计算机可读存储介质，每个MCU都是完整的功能单元，可以动态生成并执行不同的服务程序；且本公开的视频会议的各个终端41均被分配不同的单元化MCU 43(第三单元化MCU)执行呼叫控制服务，使得终端41呼叫控制服务是分布式的，实现了负载均衡；同时，各终端41均对应分配有单元化MCU 43(第四单元化MCU)执行终端41媒体处理服务，本公开使用多个单元化MCU 43协同实现一个会议的媒体级联；且能够在进行互联网视频会议时，根据大容量会议终端41的动态接入的情况按需动态调整级联关系，从而降低了系统使用带宽，保证了系统延时可控。
在一个实施例中，还提供一种计算机设备，包括存储器和处理器，所述存储器中储存有计算机可读指令，所述计算机可读指令被所述处理器执行时，使得所述处理器执行以下步骤：通过会议调度服务接收终端41的会议呼叫请求，并接收所述终端41所在区域的区域信息；所述区域信息为所述终端41所在区域的任意第二单元化MCU通过呼叫路由服务上报；根据所述区域信息以及预设规则选取第三单元化MCU以执行呼叫控制服务，并将所述第三单元化MCU地址返回至所述终端41；接收所述终端41对于第三单元化MCU地址的呼叫请求，并将所述第三单元化MCU分配给所述终端41；在接收到所述终端41的媒体处理能力要求之后，将所述区域内满足所述要求的第四单元化 MCU分配给所述终端41以执行终端41媒体处理服务。
在一个实施例中，计算机可读指令被处理器执行时，还使得处理器执行以下步骤：在所述终端41上会之后，为所述终端41接入的会议分配第五单元化MCU以执行多点会议控制服务，并分别为所述会议关联的所有区域分配对应的第六单元化MCU以执行会议媒体服务；其中，所述第五单元化MCU和第六单元化MCU均为单元化MCU 43，所述单元化MCU 43的业务功能还包括多点会议控制服务和会议媒体服务。
在一个实施例中，计算机可读指令被处理器执行时，还使得处理器执行以下步骤：接收所述终端41的呼叫挂断信息，释放所述第三单元化MCU和所述第四单元化MCU；接收会议结束通知，释放所述第五单元化MCU和所述第六单元化MCU。
在一个实施例中，计算机可读指令被处理器执行时，还使得处理器执行以下步骤：通过会议调度服务接收会议对于终端41的呼叫请求，在所述终端41所属区域内为所述终端41分配第三单元化MCU以执行呼叫控制服务，并令所述第三单元化MCU与所述终端41进行信令交互；在接收到所述终端41的媒体处理能力要求之后，将所述区域内满足所述要求的第四单元化MCU分配给所述终端41以执行终端41媒体处理服务；在所述终端41上会之后，为所述终端41接入的会议分配第五单元化MCU以执行多点会议控制服务，并分别为所述会议关联的所有区域各自分配对应的第六单元化MCU以执行会议媒体服务；接收所述终端41的呼叫挂断信息，释放所述第三单元化MCU和所述第四单元化MCU；接收会议结束通知，释放所述第五单元化MCU和所述第六单元化MCU。
在一个实施例中，计算机可读指令被处理器执行时，还使得处理器执行以下步骤：通过网络打包的方式将媒体码流发送至与其对应的所述第四单元化MCU；所述媒体码流包括音频、视频；在接收到所述媒体码流时，将所述媒体码流进行编码之后发送至本区域内的第六单元化MCU；根据所述会议的其他需求终端41的选看需求，将编码之后的所述媒体码流转发给需求终端41所属区域的第六单元化MCU， 并在所属区域的第三单元化MCU对其进行重新编码之后传递至所述需求终端41。
上述计算机设备，每个MCU都是完整的功能单元，可以动态生成并执行不同的服务程序；且本公开的视频会议的各个终端41均被分配不同的单元化MCU 43(第三单元化MCU)执行呼叫控制服务，使得终端41呼叫控制服务是分布式的，实现了负载均衡；同时，各终端41均对应分配有单元化MCU 43(第四单元化MCU)执行终端41媒体处理服务，本公开使用多个单元化MCU 43协同实现一个会议的媒体级联；且能够在进行互联网视频会议时，根据大容量会议终端41的动态接入的情况按需动态调整级联关系，从而降低了系统使用带宽，保证了系统延时可控。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述程序可存储于一计算机可读取存储介质中，如本公开实施例中，该程序可存储于计算机系统的存储介质中，并被该计算机系统中的至少一个处理器执行，以实现包括如上述各方法的实施例的流程。其中，所述存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory，ROM)或随机存储记忆体(Random Access Memory，RAM)等。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本公开的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对公开专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本公开构思的前提下，还可以做出若干变形和改进，这些都属于本公开的保护范围。因此，本公开专利的保护范围应以所附权利要求为准。

Claims (12)

  1. 一种视频会议多点控制方法，包括：
    第一单元化多点控制单元(MCU)通过会议调度服务接收终端的会议呼叫请求，并接收所述终端所在区域的区域信息；所述区域信息为所述终端所在区域的任意第二单元化MCU通过呼叫路由服务上报；
    所述第一单元化MCU根据所述区域信息以及预设规则选取第三单元化MCU以执行呼叫控制服务，并将所述第三单元化MCU地址返回至所述终端；
    所述第一单元化MCU接收所述终端对于第三单元化MCU地址的呼叫请求，并将所述第三单元化MCU分配给所述终端；
    所述第一单元化MCU在接收到所述终端的媒体处理能力要求之后，将所述区域内满足所述要求的第四单元化MCU分配给所述终端以执行终端媒体处理服务。
  2. 根据权利要求1所述的方法，还包括：
    所述第一单元化MCU在所述终端上会之后，为所述终端接入的会议分配第五单元化MCU以执行多点会议控制服务，并分别为所述会议关联的所有区域分配对应的第六单元化MCU以执行会议媒体服务。
  3. 根据权利要求2所述的方法，还包括：
    所述第一单元化MCU接收所述终端的呼叫挂断信息，释放所述第三单元化MCU和所述第四单元化MCU；
    所述第一单元化MCU接收会议结束通知，释放所述第五单元化MCU和所述第六单元化MCU。
  4. 根据权利要求1所述的方法，其中，所述终端注册信息为所述终端在所述区域所属的注册服务器中进行注册之后的注册信息；
    所述区域信息为所述区域内的单元化MCU在所述区域所属的注册服务器中进行注册之后的注册信息；
    所述注册服务器为网守服务器或会话初始协议服务器。
  5. 一种视频会议多点控制方法，包括：
    第一单元化多点控制单元(MCU)通过会议调度服务接收会议对于终端的呼叫请求，在所述终端所属区域内为所述终端分配第三单元化MCU以执行呼叫控制服务，并令所述第三单元化MCU与所述终端进行信令交互；
    所述第一单元化MCU在接收到所述终端的媒体处理能力要求之后，将所述区域内满足所述要求的第四单元化MCU分配给所述终端以执行终端媒体处理服务；
    所述第一单元化MCU在所述终端上会之后，为所述终端接入的会议分配第五单元化MCU以执行多点会议控制服务，并分别为所述会议关联的所有区域各自分配对应的第六单元化MCU以执行会议媒体服务；
    所述第一单元化MCU接收所述终端的呼叫挂断信息，释放所述第三单元化MCU和所述第四单元化MCU；
    所述第一单元化MCU接收会议结束通知，释放所述第五单元化MCU和所述第六单元化MCU。
  6. 一种视频会议多点控制装置，包括：终端、注册服务器和单元化多点控制单元(MCU)，所述单元化MCU的业务功能包括会议调度服务、呼叫路由服务、终端呼叫控制服务和终端媒体处理服务，所述单元化MCU包括第一单元化MCU、第二单元化MCU、第三单元化MCU和第四单元化MCU；
    第一单元化MCU配置为：通过会议调度服务接收终端的会议呼叫请求，并接收所述终端所在区域的区域信息，所述区域信息为所述终端所在区域的任意第二单元化MCU通过呼叫路由服务上报；根据所述区域信息以及预设规则选取第三单元化MCU以执行呼叫控制服务，并将所述第三单元化MCU地址返回至所述终端；接收所述终端对于第三单元化MCU地址的呼叫请求，并将所述第三单元化MCU分配给所述 终端；在接收到所述终端的媒体处理能力要求之后，将所述区域内满足所述要求的第四单元化MCU分配给所述终端以执行终端媒体处理服务。
  7. 根据权利要求6所述的装置，其中，所述第一单元化MCU还配置为：在所述终端上会之后，为所述终端接入的会议分配第五单元化MCU以执行多点会议控制服务，并分别为所述会议关联的所有区域分配对应的第六单元化MCU以执行会议媒体服务；其中，所述第五单元化MCU和第六单元化MCU均为单元化MCU，所述单元化MCU的业务功能还包括多点会议控制服务和会议媒体服务。
  8. 根据权利要求7所述的装置，其中，所述第一单元化MCU还配置为：接收所述终端的呼叫挂断信息，释放所述第三单元化MCU和所述第四单元化MCU；接收会议结束通知，释放所述第五单元化MCU和所述第六单元化MCU。
  9. 根据权利要求7所述的装置，其中，所述终端配置为通过网络打包的方式将媒体码流发送至与其对应的所述第四单元化MCU；所述媒体码流包括音频、视频；
    所述第四单元化MCU配置为在接收到所述媒体码流时，将所述媒体码流进行编码之后发送至本区域内的第六单元化MCU；
    所述第六单元化MCU配置为根据所述会议的其他需求终端的选看需求，将编码之后的所述媒体码流转发给需求终端所属区域的第六单元化MCU，并在所属区域的第三单元化MCU对其进行重新编码之后传递至所述需求终端。
  10. 根据权利要求6所述的装置，其中，所述第一单元化MCU还配置为：通过会议调度服务接收会议对于终端的呼叫请求，在所述终端所属区域内为所述终端分配第三单元化MCU以执行呼叫控制服务，并令所述第三单元化MCU与所述终端进行信令交互；在接收到所 述终端的媒体处理能力要求之后，将所述区域内满足所述要求的第四单元化MCU分配给所述终端以执行终端媒体处理服务；在所述终端上会之后，为所述终端接入的会议分配第五单元化MCU以执行多点会议控制服务，并分别为所述会议关联的所有区域各自分配对应的第六单元化MCU以执行会议媒体服务；接收所述终端的呼叫挂断信息，释放所述第三单元化MCU和所述第四单元化MCU；接收会议结束通知，释放所述第五单元化MCU和所述第六单元化MCU。
  11. 一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机可执行指令，所述计算机可执行指令被处理器执行时，使得所述处理器执行权利要求1至5中任一项所述方法的步骤。
  12. 一种计算机设备，包括存储器和处理器，所述存储器中储存有计算机可读指令，所述计算机可读指令被所述处理器执行时，使得所述处理器执行权利要求1至5中任一项所述方法的步骤。
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