CN101848170B - MCU (Microprogrammed Control Unit) resource scheduling method and system - Google Patents
MCU (Microprogrammed Control Unit) resource scheduling method and system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/1813—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast for computer conferences, e.g. chat rooms
- H04L12/1818—Conference organisation arrangements, e.g. handling schedules, setting up parameters needed by nodes to attend a conference, booking network resources, notifying involved parties
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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
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Abstract
The invention discloses MCU (Microprogrammed Control Unit) resource scheduling method and system, applied to a plurality of MCU cascaded video conference systems. The method comprises the following steps of: firstly, selecting MCUs one by one and distributing terminals until the terminals to be distributed are all distributed; executing the following steps on the MCU selected each time: reserving resources of M cascaded ports, wherein M is less than a preset value, distributing the terminals to the MCU until the resources, except the reserved resource, are all occupied, carrying out resource validation, and setting a main MCU; secondly, judging whether the number N of the selected MCUs is M+1 or not; and if so, finishing the MCU resource scheduling. According to the technical scheme provided by the invention, the problem that the resource scheduling utilization ratio is low when the cascade connection of multiple MCUs is adopted for convoking a video session is solved, thereby a cascaded port can be flexibly reserved, and the waste of resource in the scheduling process is reduced.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of multipoint control unit (Multipoint Control Unit, referred to as MCU) resource regulating method and system.
Background technology
Video conference is through development for many years; when current video conferencing networking scale is increasing; multipoint control unit (the Multipoint Control Unit of single-stage; referred to as MCU) TV conference system can not meet the needs of meeting; thus the MCU passing through cascade provides support for holding extensive meeting, has become a necessary function of TV conference system.
In view of the time particularity of meeting and the less feature of MCU resource, generally needed to preengage in advance before formal meeting, the essence of conference reservation is preengage MCU resource, is generally divided into following step: first dispatching MCU resource, for the terminal of participating in reservation selects suitable MCU; Secondly resource authentication method is adopted to calculate the MCU resource after scheduling, to verify the reasonability of scheduling of resource.Current most of TV conference system both provides the function of dispatching MCU resource, therefore needs dispatching long middle enhancing to the utilance of existing MCU resource, avoids wasting unnecessary resource.
Inventor finds, following problem is there is: be static when cascade port is reserved in automatic cascade in correlation technique, assuming that whole service server has X MCU, when preengaging subtended conference, first X-1 cascade port can be reserved for each MCU, and then distributing terminals, again cascade port is adjusted after all terminal distribution, so not only waste resource, may cause when multiple MCU actually can preengaging successful meeting and preengaging now unsuccessful.
Summary of the invention
For when adopting multiple MCU cascade holding video conference in correlation technique, the problem that scheduling of resource utilance is lower, the object of the present invention is to provide a kind of MCU resource regulating method and system, to solve the problem one of at least.
According to an aspect of the present invention, a kind of MCU resource regulating method is provided.
According to MCU resource regulating method of the present invention, be applied to the video conferencing system of multiple MCU cascade, comprise: first one by one choose MCU and distributing terminals, until need the terminal of distributing all to be assigned; Wherein, for the MCU chosen at every turn, all perform following steps: the resource of reserved its M cascade port, wherein, M is less than preset value; To its distributing terminals until its other resources except reserved resource are occupied full; Resource authenticates is carried out to it, wherein, main MCU is set; Whether the number N of the MCU selected by secondly judging is M+1; If so, then MCU scheduling of resource is completed.
According to a further aspect in the invention, a kind of MCU resource scheduling system is provided.
According to MCU resource scheduling system of the present invention, be applied to the video conferencing system of multiple MCU cascade, comprise: processing module, for one by one choosing MCU and distributing terminals, until need the terminal of distributing all to be assigned, wherein, for the MCU chosen at every turn, all perform following process: the resource of reserved its M cascade port, wherein, M is less than predetermined value, to its distributing terminals until its other resources except reserved resource are occupied full, resource authenticates is carried out to it, wherein, be verified first MCU is set to main MCU; Judge module, for judging whether the number N of selected MCU is M+1; Determination module, for when judge module exports as being, has determined MCU scheduling of resource.
By the present invention, one by one choose MCU and distributing terminals, until need the terminal of distributing all to be assigned, when the number N of selected MCU is when the cascade port number of be verified first MCU is added 1, determine the success of MCU scheduling of resource.Solve in correlation technique when adopting multiple MCU cascade holding video conference, the problem that scheduling of resource utilance is lower, and then cascade port can be reserved flexibly, reduce the waste of resource in scheduling process.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the MCU resource regulating method of the embodiment of the present invention;
Fig. 2 is the Organization Chart of the video conferencing system of multiple MCU cascades of the preferred embodiment of the present invention;
Fig. 3 is the flow chart of the MCU resource regulating method of the preferred embodiment of the present invention;
Fig. 4 is the structured flowchart of the MCU resource scheduling system of the embodiment of the present invention; And
Fig. 5 is the structured flowchart of the MCU resource scheduling system of the preferred embodiment of the present invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
In correlation technique, in the video conferencing system needing multiple MCU cascade, assuming that whole service server has X MCU, when preengaging subtended conference, first X-1 cascade port can be reserved for each MCU, and then distributing terminals, again cascade port is adjusted after all terminal distribution.Adopt this resource scheduling scheme, resource utilization is lower.
Fig. 1 is the flow chart of the MCU resource regulating method of the embodiment of the present invention.As shown in Figure 1, this MCU resource regulating method comprises following process:
Step S102: one by one choose MCU and distributing terminals, until need the terminal of distributing all to be assigned;
Wherein, for the MCU chosen at every turn, all following steps are performed:
(1) resource of reserved its M cascade port;
(2) to its distributing terminals until its other resources except reserved resource are occupied full;
(3) resource authenticates is carried out to it, wherein, be verified first MCU is set to main MCU;
Whether the number N of step S104: the MCU selected by judgement is M+1;
Step S106: if then complete MCU scheduling of resource.
Adopt said method, one by one choose MCU and distributing terminals, until need the terminal of distributing all to be assigned, when the number N of selected MCU is when the cascade port number of be verified first MCU is added 1, determine the success of MCU scheduling of resource.By the scheduling of resource of the method, when dispatching, number that is complete and MCU has nothing to do, and reserved cascade port, decreases the waste of resource, really accomplished the scheduling of automatic subtended conference flexibly.
Preferably, in step s 102, for the MCU chosen at every turn, a cascade port (i.e. M=1) can be reserved.Certainly, in specific implementation process, the cascade port of other numbers (such as, 2,3 etc.) can also be reserved to each MCU.But consider the problem of saving resource, M settings should be determined as the case may be, a predetermined value should be less than.
The preferred implementation each MCU being reserved to a cascade port is described below in conjunction with Fig. 2.
Fig. 2 is the Organization Chart of the video conferencing system of multiple MCU cascades of the preferred embodiment of the present invention.As shown in Figure 2, adopt cascade system as shown in Figure 1 (for each reserved cascade port), can form the topological structure of following MCU cascade: the MCU that first resource authenticates passes through is main MCU, main MCU is connected from MCU (i.e. non-first resource authenticates pass through MCU) with multiple respectively.
Wherein, above-mentioned resource authenticates mode can adopt verification mode of the prior art, such as, and checking success holding video conference etc.
Preferably, in step s 102, MCU can be chosen in the following manner:
(1) MCU in video conferencing system is sorted according to surplus resources size;
(2) choose the maximum MCU of surplus resources at every turn.
In preferred implementation process, the maximum MCU of surplus resources can be chosen in advance, distributing terminals successively, adopt this scheme, the quantity of the MCU used in this scheduling of resource process can be saved as far as possible, thus effectively save MCU resource.
Preferably, can in the following manner to MCU distributing terminals: for each MCU, after there is the terminal of a cascade port and multi-capacity to its distribution, by the terminal distribution in set of terminal maximum for current total bandwidth to this MCU, when also having surplus resources in this MCU, successively by the terminal distribution in the set of terminal of unallocated terminal to this MCU, until the resource of this MCU is occupied full.
Wherein, the terminal of above-mentioned multi-capacity, refers to that terminal has multi abilities, such as, and high definition, SD etc.For each MCU, the terminal with a cascade port and multi-capacity is distributed to it, owing to cascade MCU can not notify in advance the terminal of distributing which kind of ability, therefore each cascade MCU must hold mixing meeting, when giving each MCU distributing terminals, must also distribute one the terminal of other abilities, reserve multi-capacity resource to allow resource algorithm.
In preferred implementation process, first need the terminal of distribution cascade port and multi-capacity.And then follow the greedy algorithm principle be as far as possible finished, preferentially the terminal distribution in set of terminal maximum for total bandwidth is then considered simultaneously the restriction of these two aspects of terminal number that bandwidth sum can be accessed by this MCU, MCU resource.If the terminal in a set of terminal also has surplus resources after all putting into this MCU, then attempt continuing the terminal distribution in next set of terminal to this MCU; If the terminal in a set of terminal can not all be assigned to this MCU, then can distribute how many how much just as far as possible distribution, complete for the resource consumption of this MCU.
Adopt above-mentioned process, the distribution ratio of terminal can be made more concentrated, and effectively can improve allocative efficiency.
Preferably, when the number N of selected MCU is not M+1, method can also comprise following process: remove the terminal on main MCU, and the terminal removed is reassigned to other MCU, until the number N of selected MCU is M+1, wherein, other MCU are the MCU newly increased and/or the MCU not being occupied full resource.
By above-mentioned continuous adjustment, decrease the waste of resource, really accomplish the scheduling of automatic subtended conference.
Such as, current main MCU has reserved a cascade port, and when distributing terminal, employs three MCU altogether.The number N (being now 3) of then selected MCU is not M+1 (being now 2).So need to adjust the cascade port number of main MCU.
In preferred implementation process, the cascade port number adjusting main MCU mainly comprises following process: remove the terminal on main MCU, and the terminal removed is reassigned to other MCU, until the number N of selected MCU is M+1, wherein, other MCU above-mentioned are the MCU newly increased and/or the MCU not being occupied full resource.
Below in conjunction with Fig. 3, above-mentioned preferred implementation process is described.
Fig. 3 is the flow chart of the MCU resource regulating method of the preferred embodiment of the present invention.As shown in Figure 3, the MCU resource regulating method of the preferred embodiment of the present invention comprises following process:
Step S302: before scheduling of resource, needs initialization conferencing resource, comprises veneer resource, terminal resource, MCU resource, and these are all that MCU scheduling of resource is necessary;
Step S304: according to the principle of load balancing, sorts to the order that the residue IP bandwidth of all candidate MCU is carried out from big to small, attempts distributing terminals on these MCU successively in order;
Step S306: distributing terminals on MCU, until the Resourse Distribute of this MCU is complete.
In preferred implementation process, the process to a MCU distributing terminals is as follows: the terminal first needing distribution cascade port and multi-capacity.And then follow the algorithm principle be as far as possible finished, preferentially the terminal distribution in set of terminal maximum for total bandwidth is then considered simultaneously the restriction of these two aspects of terminal number that bandwidth sum can be accessed by this MCU, MCU resource.If the terminal in a set of terminal also has surplus resources after all putting into this MCU, then attempt continuing the terminal distribution in next set of terminal to this MCU; If the terminal in a set of terminal can not all be assigned to this MCU, then can distribute how many how much just as far as possible distribution, until complete for the resource consumption of this MCU.
Step S308: after step S306 completes, carries out resource authenticates to this MCU.
Step S310: if step S308 resource authenticates passes through, if also do not arrange main MCU, is just set to main MCU by this MCU.
Step S312: judge whether terminal is assigned, if be assigned, carries out step S314; Otherwise, carry out step S318.Judge whether all MCU are assigned, if be not assigned, continue to distribute on next MCU, from step S306; Otherwise dispatch unsuccessfully, return step S320.
Step S314: step S316 is a key algorithm of the present invention, and original technical scheme is improved.Judge whether cascade port number satisfies condition: M=N-1, wherein M is the number of cascade port on main MCU, and N is the number of the MCU that meeting uses.If satisfied condition, dispatch successfully, return step S320; Otherwise, enter step S316;
Step S316: cascade port is adjusted, mainly main MCU is adjusted, until the number of cascade port satisfies condition on main MCU, certainly the cascade port on main MCU is added, remove corresponding terminal, resource authenticates on winner MCU is passed through, and then distributes the terminal removed, continue step S306 and start.
Fig. 4 is the structured flowchart of the MCU resource scheduling system of the embodiment of the present invention.Wherein, this MCU resource scheduling system is applied to the video conferencing system of multiple MCU cascade, and as shown in Figure 4, this MCU resource scheduling system comprises: processing module 40, judge module 42, determination module 44.
Processing module 40, for one by one choosing MCU and distributing terminals, until need the terminal of distributing all to be assigned.
Wherein, for the MCU chosen at every turn, processing module 40 all performs following process:
(1) resource of reserved its M cascade port, wherein, M is less than predetermined value;
(2) to its distributing terminals until its other resources except reserved resource are occupied full,
(3) resource authenticates is carried out to it, wherein, be verified first MCU is set to main MCU;
Judge module 42, for judging whether the number N of selected MCU is M+1;
Determination module 44, for when judge module exports as being, has determined MCU scheduling of resource.
Adopt said system, processing module 40 one by one chooses MCU and distributing terminals, until need the terminal of distributing all to be assigned, when the number N of selected MCU is when the cascade port number of be verified first MCU is added 1, determine the success of MCU scheduling of resource.This system number that is complete and MCU when scheduling resource has nothing to do, and reserved cascade port, decreases the waste of resource, really accomplished the scheduling of automatic subtended conference flexibly.
Preferably, processing module 40, when for each MCU distributing terminals, can reserve the resource of 1 (i.e. M=1) cascade port.
Preferably, as shown in Figure 5, processing module 40 can also comprise: sequencing unit 400, for being sorted according to surplus resources size by MCU in video conferencing system; Choose unit 402, for choosing the maximum MCU of surplus resources at every turn.
Preferably, as shown in Figure 5, processing module 40 can also comprise: allocation units 404, for for each MCU, for its distribute there is the terminal of a cascade port and multi-capacity after, by the terminal distribution in set of terminal maximum for current total bandwidth to this MCU, in this MCU also have surplus resources time, successively by the terminal distribution in the set of terminal of unallocated terminal to this MCU, until this MCU resource is occupied full.
Preferably, as shown in Figure 5, said system can also comprise: adjusting module 46, for when the number N of selected MCU is not M+1, remove the terminal on main MCU, and the terminal removed is reassigned to other MCU, until the number N of selected MCU is M+1, wherein, other MCU are the MCU newly increased and/or the MCU not being occupied full resource.
In preferred implementation process, processing module 40, when choosing certain MCU, first can reserve a cascade port, then by terminal scheduling to this MCU, until this MCU resource takes.Carry out resource authenticates afterwards, wherein, be set to main MCU by first by the MCU of checking.
Afterwards, processing module 40 continues to dispatch unappropriated terminal according to above-mentioned process.
In preferred implementation process, after distributing terminal, whether the number N needing the MCU selected by judging is M+1; If so, then this scheduling of resource completes.Otherwise, need to adjust the cascade port of main MCU.Namely the cascade port number on main MCU is adjusted, remove corresponding terminal on the cascade port that needs to increase, and the terminal removed is reassigned to other MCU, until the number N of selected MCU is M+1.
Wherein, other MCU above-mentioned can be the MCU that newly increases and/or the MCU not being occupied full resource.
It should be noted that the preferred working method of above-mentioned MCU resource scheduling system specifically see Fig. 1 and Fig. 3, can repeat no more herein.
In sum, by above-described embodiment provided by the invention, according to the corresponding relation of each terminal capabilities set and MCU, determine the topological relation of subtended conference; On MCU, flexible allocation cascade port terminal when distributing terminals, reduces the waste of spare resources; Main MCU is determined by the terminal MCU situation of distributing; Automatic adjustment cascade port is reallocated.Compared with prior art, by the optimization on original scheduling strategy, reserve cascade port in real time when distributing terminals, after all terminals are all assigned, then cascade port is adjusted, until finally dispatch successfully.By the scheduling of resource of the method, when dispatching, number that is complete and MCU has nothing to do, and reserved cascade port, decreases the waste of resource, really accomplished the scheduling of automatic subtended conference flexibly.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a multipoint control unit MCU resource regulating method, is applied to the video conferencing system of multiple MCU cascade, it is characterized in that, comprising:
One by one choose MCU and distributing terminals, until need the terminal of distributing all to be assigned;
Wherein, for the MCU chosen at every turn, all following steps are performed:
The resource of reserved its M cascade port, wherein, described M is less than preset value;
To its distributing terminals until its other resources except described reserved resource are occupied full;
Resource authenticates is carried out to it, wherein, main MCU is set;
Whether the number N of the MCU selected by judgement is M+1;
If so, then MCU scheduling of resource is completed.
2. method according to claim 1, is characterized in that, described M is 1.
3. method according to claim 1, is characterized in that, chooses MCU in the following manner:
MCU in described video conferencing system is sorted according to surplus resources size;
Choose the MCU that surplus resources is maximum at every turn.
4. method according to claim 1, is characterized in that, in the following manner to MCU distributing terminals:
For each MCU, after there is the terminal of a cascade port and multi-capacity to its distribution, by the terminal distribution in set of terminal maximum for current total bandwidth to this MCU, when also having surplus resources in this MCU, successively by the terminal distribution in the set of terminal of unallocated terminal to this MCU, until this MCU resource is occupied full.
5. method according to any one of claim 1 to 4, it is characterized in that, when the number N of selected MCU is not M+1, described method also comprises: remove the terminal on described main MCU, and the described terminal removed is reassigned to other MCU, until the number N of selected MCU is M+1, wherein, other MCU described are the MCU newly increased and/or the MCU not being occupied full resource.
6. a multipoint control unit MCU resource scheduling system, is applied to the video conferencing system of multiple MCU cascade, it is characterized in that, comprising:
Processing module, for one by one choosing MCU and distributing terminals, until need the terminal of distributing all to be assigned, wherein, for the MCU chosen at every turn, all perform following process: the resource of reserved its M cascade port, wherein, M is less than predetermined value, to its distributing terminals until its other resources except described reserved resource are occupied full, resource authenticates is carried out to it, wherein, be verified first MCU is set to main MCU;
Judge module, for judging whether the number N of selected MCU is M+1;
Determination module, for when described judge module exports as being, has determined MCU scheduling of resource.
7. system according to claim 6, is characterized in that, described processing module, when for each MCU distributing terminals, reserves the resource of 1 cascade port.
8. system according to claim 6, is characterized in that, described processing module also comprises:
Sequencing unit, for sorting MCU in described video conferencing system according to surplus resources size;
Choose unit, for choosing the maximum MCU of surplus resources at every turn.
9. system according to claim 6, is characterized in that, described processing module also comprises:
Allocation units, for for each MCU, for its distribute there is the terminal of a cascade port and multi-capacity after, by the terminal distribution in set of terminal maximum for current total bandwidth to this MCU, when also having surplus resources in this MCU, successively by the terminal distribution in the set of terminal of unallocated terminal to this MCU, until this MCU resource is occupied full.
10. the system according to any one of claim 6 to 9, is characterized in that, described system also comprises:
Adjusting module, for when the number N of selected MCU is not M+1, remove the terminal on described main MCU, and the described terminal removed is reassigned to other MCU, until the number N of selected MCU is M+1, wherein, other MCU described are the MCU newly increased and/or the MCU not being occupied full resource.
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| CN201010208939.9A CN101848170B (en) | 2010-06-21 | 2010-06-21 | MCU (Microprogrammed Control Unit) resource scheduling method and system |
| PCT/CN2011/073141 WO2011160490A1 (en) | 2010-06-21 | 2011-04-21 | Multipoint control unit resource scheduling method and system |
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| CN201010208939.9A CN101848170B (en) | 2010-06-21 | 2010-06-21 | MCU (Microprogrammed Control Unit) resource scheduling method and system |
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| CN101848170B true CN101848170B (en) | 2015-05-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101848170B (en) * | 2010-06-21 | 2015-05-13 | 中兴通讯股份有限公司 | MCU (Microprogrammed Control Unit) resource scheduling method and system |
| WO2016086371A1 (en) * | 2014-12-03 | 2016-06-09 | 华为技术有限公司 | Conference resource scheduling method and apparatus |
| CN104836983B (en) * | 2015-05-26 | 2018-11-20 | 苏州科达科技股份有限公司 | video conference resource management system and resource server |
| CN106331579A (en) * | 2015-07-02 | 2017-01-11 | 三亚中兴软件有限责任公司 | Multimedia conference access method, device and system, and multipoint control unit |
| CN109547730A (en) * | 2015-09-30 | 2019-03-29 | 杭州华为企业通信技术有限公司 | A kind of dispatching method and device of multipoint control unit resource |
| CN105357469A (en) * | 2015-11-06 | 2016-02-24 | 国家电网公司 | MCU (multi control unit) resource pool deploying method and apparatus |
| CN105657328B (en) * | 2016-01-04 | 2019-07-09 | 杭州华为企业通信技术有限公司 | A kind of method, apparatus and system of port operation meeting resource |
| CN106559640A (en) * | 2016-11-10 | 2017-04-05 | 国网浙江省电力公司金华供电公司 | Two-stage MCU strange land is in real time mutually for device |
| CN108243320B (en) * | 2016-12-23 | 2020-05-08 | 杭州华为企业通信技术有限公司 | Conference control method, device and system |
| CN107147653B (en) * | 2017-05-22 | 2020-01-31 | 福建星网智慧科技股份有限公司 | media distribution cascading method and system |
| CN110430386B (en) * | 2019-07-26 | 2020-08-11 | 四川新东盛科技发展有限公司 | Video conference system based on cloud resource pool technology and working method thereof |
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| CN101227533A (en) * | 2008-01-31 | 2008-07-23 | 华为技术有限公司 | Apparatus and method for establishing audio conference connection |
| CN101582917A (en) * | 2009-06-18 | 2009-11-18 | 中兴通讯股份有限公司 | Method for dispatching MCU resource, business server and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227533A (en) * | 2008-01-31 | 2008-07-23 | 华为技术有限公司 | Apparatus and method for establishing audio conference connection |
| CN101582917A (en) * | 2009-06-18 | 2009-11-18 | 中兴通讯股份有限公司 | Method for dispatching MCU resource, business server and system |
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| WO2011160490A1 (en) | 2011-12-29 |
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