CN102118254A - Method and device for controlling upstream multicast - Google Patents
Method and device for controlling upstream multicast Download PDFInfo
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- CN102118254A CN102118254A CN201010022431XA CN201010022431A CN102118254A CN 102118254 A CN102118254 A CN 102118254A CN 201010022431X A CN201010022431X A CN 201010022431XA CN 201010022431 A CN201010022431 A CN 201010022431A CN 102118254 A CN102118254 A CN 102118254A
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Abstract
The invention provides a method and a device for controlling upstream multicast in a communication network system, wherein a multicast source terminal is used for registering an upstream multicast service thereof in management equipment; the management equipment is used for distributing an upstream multicast address to the multicast source terminal and sending an upstream multicast service attribute of the multicast source terminal to network access equipment corresponding to the multicast source terminal; and the network access equipment is used for controlling the transfer of the upstream multicast of the multicast source terminal according to the upstream multicast service attribute. The upstream multicast control realized by using the method and device provided by the invention is beneficial to developing a local specific individual multicast service, reducing the load of a video service system, and saving a large amount of bandwidth resources for a metropolitan area network and a broadband access network.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of ascending multicast business control method and device thereof.
Background technology
The IP multicasting technology has solved the problem that single-point transmission multiple spot receives, multiple spot sends the multiple spot reception effectively, has realized the efficient data transmission of IP network mid point to multiple spot, effectively conserve network bandwidth, reduction offered load.
For business such as the increasing IPTV, the E-learning that occur in the network, video conferences, the bandwidth that each data flow will take is more and more higher, and common program stream also will reach about 2M, and therefore present IP bearer network can't satisfy carrying out of IPTV business.Can effectively utilize the current limited network bandwidth and make full use of multicasting technology, the IPTV business that present operator will carry out comprises that live telecast (Live TV), time-moving television (Time-shiftedTV), video request program (VOD) and quasi-video request program business (NVOD) etc. are several, wherein radio and television and time-moving television all are the patterns that the multi-user visits identical content simultaneously, therefore and multicast can solve the problem of this respect well, uses multicast pattern to support that business such as IPTV is rationally to utilize current network to carry out the preferably selection of business such as I PTV.
But current its efficient of descending multicast scheme, upgradability, personalization such as provides to have more or less problem at the aspect, and extensive, the low-cost deployment of multicast service still is a problem.
In the legend 1, we are applied as example with the mobile TV in the wireless MAN and describe.It comprises video service system 10, IP/ATM metropolitan area network 20, broadband access network 30 and 40 4 parts of user network: wherein, video service system 10 is realized video traffic management, video user management, video coding, content protecting functions such as (CA/DRM), and video traffic is sent into metropolitan area network; IP/ATM metropolitan area network 20 is delivered to broadband access network by the IP/ATM multicast functionality with video traffic, and also can considering to build independently, video content distribution networks VDN is pushed to broadband access network with video content; Broadband access network 30 realization consumer wideband network connection authentication managements, video group add leaves controlled function, IGMP (IGMP) control message according to the user sends to video flowing the user who needs, access network device wherein, for example DSLAM (Digital Subscriber Line access and multiplexing device) provides high performance multicast conversion capability, support that I GMP channel switches, the duplicating of multicast data flow, priority scheduling, basic IPTV user right control is provided simultaneously, ensures operation security; User network 40 comprises CPE (user's head joint equipment) 41 and PC (personal computer), STB multiple terminal equipments such as (set-top box), the interconnected formation home network of these device interiors, video traffic from xDSL (digital subscriber line) is sent to each user terminal by CPE, user terminal is realized decoding function, solves vision signal and shows.
In the legend 1, DSLAM obtains descending multicast service service describing and comprises the user property description that user multicast inserts authority, when it receives that multicast from the user joins request, describe decision according to aforementioned multicast service service describing, user property and whether send the multi-cast business data of being asked and flow to this Member Users.Yet, when a specific multicast service (for example spot broadcasting channel) need be transmitted, need be multicast address of this channel allocation, this multicast address is unique in the network-wide basis, before being cancelled, its corresponding channel can not be repeated to use, for instance, if user network 40, typically issue a local advertising near the part in its local wireless CPE 41 coverages as what a shop only needed, it also needs at first to apply for the unique descending multicast address " 224.10.10.1 " in the network-wide basis, its advertisement video also needs to be uploaded to earlier the media server 11 of network side, add this multicast group by descending multicast control by 42 applications of the terminal use in its local wireless CPE 41 coverages again, multicast video streams is issued to wireless CPE 41 by network.This mode has consumed the multicast address resource, and consumed the network bandwidth of IP/ATM metropolitan area network 20, broadband access network 30, moreover we can see, this multicast groups mode lacks flexibility in management, especially above-mentioned multicast service may only exist in the localized network scope.
Summary of the invention
The present invention is intended to solve aforementioned one or more technical problem, and a kind of up multicast control technology is provided, and can realize up flexibly multicast control according to user's multicast service application requirements.
According to an aspect of the present invention, provide the up multicast control method in a kind of communications network system here, comprise the steps: a), the multicast source terminal registers its ascending multicast business to management equipment; B), management equipment is up multicast address of multicast source terminal distribution, and the ascending multicast business controlled attribute of this multicast source terminal is issued to the corresponding network access equipment of multicast source end; C), network access equipment carries out control operation according to this ascending multicast business controlled attribute to the up multicast of described multicast source terminal.
According to another aspect of the present invention, a kind of network access equipment that is used for up multicast control is provided here, comprise: receiving system, receive the ascending multicast business controlled attribute that issues from network side multicast service management equipment, upgrade corresponding subscriber's line multicast authority table; Control device carries out control operation according to described subscriber's line multicast authority table to the uplink multicast data stream that user side sends.
According to another aspect of the present invention, a kind of management equipment that is used for up multicast control is provided here, comprise: management devices receives the multicast service registering request from client, for it distributes corresponding up multicast address and generates an ascending multicast business controlled attribute; Dispensing device is issued to the corresponding network access equipment of client with described ascending multicast business controlled attribute.
The present invention has following technical advantage:
Ascending multicast business application to the user is more flexible, and on the one hand, management equipment can require to distribute up multicast address to give different multicast source devices by user's multicast service, saved the multicast address expense, helps carrying out on a large scale of multicast application; In addition on the one hand, the distribution of up multicast address can be controlled in the LAN scope and reuses, user in the different localized network scopes can reuse these multicast address and realize that multicast service uploads, carry out the specific of this locality, personalized multicast business, the ascending multicast business data flow only is confined in the localized network scope, do not need to be uploaded to the media server of network side, the mode that adds by application obtains descending forwarding again, come therefrom, having reduced video service system must bear, and also can be metropolitan area network, broadband access network is saved a large amount of bandwidth resources.
Description of drawings
By the detailed description with the accompanying drawing that proposes below, it is more obvious that feature of the present invention, character and advantage will become, and components identical has identical sign in the accompanying drawing, wherein:
Fig. 1 is the mobile TV application system in the wireless MAN;
Fig. 2 is a multicast application provided by the present invention system;
Fig. 3 is a up multicast control flow legend provided by the present invention.
Embodiment
Below in conjunction with accompanying drawing, preferred implementation of the present invention is described in detail.
In the legend 2, we still are applied as example with the mobile TV in the wireless MAN multicast application provided by the present invention system are described.
Realize the video traffics management and get multicast service management equipment 12 in the video service system 10, it can accept to distribute a multicast address that satisfies its business demand from the multicast service applicant of user side for it, multicast service management equipment 12 can be carried out classification setting to the multicast address space, some multicast address section is overall multicast address, network-wide basis is carried out data flow to be transmitted, some multicast address section is local multicast address, its corresponding data flow can be controlled in the localized network scope of appointment and transmits, thereby help in the LAN scope to reuse the same multicast address and can not cause conflict, for example the access network device part, or whole user port scopes etc.Multicast service management equipment 12 can be given the applicant from available multicast address of aforementioned different classes of multicast address allocation of space at information such as professional applicant's authentification of user, registrations, what multicast source terminal 51 was applied in the legend is a local multicast address " 224.10.20.1 ", and what multicast source terminal 52 was applied for is an overall multicast address " 224.10.10.1 ".Afterwards, multicast service management equipment 12 is further according to aforementioned multicast source terminal 51,52 authentications, registration, assignment information generates the ascending multicast business controlled attribute, the line information (Access-Aggregation-Circuit-ID) that in this attribute, can comprise the user, the up multicast address (Address-Upstream-Multicast) that distributes, multicast address classification (Type) and up multicast speed multicast attribute informations such as (Data-Rate-Upstream-Multicast), wherein, the multicast address classification can be used for indicating the up multicast address that is distributed be the overall situation, or local multicast address; Multicast service management equipment 12 can will be dealt into respectively under this ascending multicast business controlled attribute and multicast source terminal 51,52 corresponding network access equipment DSLAM 31,32 by ANCP agreements such as (Access Node Control Protocol).
Network access equipment DSLAM can further finish relevant control operation according to other control informations in the ascending multicast business controlled attribute, for example carries out the legitimacy detection according to multicast address or subscriber's line attribute; Or carry out up multicast rate controlled etc. according to multicast speed.
Below, we further specify in conjunction with 3 pairs of up multicast control flows provided by the present invention of legend, wherein:
Step S301, at first multicast source terminal 51,52 is landed multicast service management equipment 12 by Web (World Wide Web (WWW)) or other clients (Client) application program, after finishing corresponding authentication, register required ascending multicast business, distribute a corresponding overall situation or local multicast address by multicast service management equipment 12, multicast service management equipment 12 will be that the multicast address that multicast source terminal 51 is applied in the legend is a local multicast address " 224.10.20.1 " according to its register requirement; The multicast address that multicast source terminal 52 is applied for is an overall multicast address " 224.10.10.1 ".
Step S302, multicast service management equipment 12 is further according to aforementioned multicast source terminal 51,52 authentications, registration, assignment information generates the ascending multicast business controlled attribute, the line information (Access-Aggregation-Circuit-ID) that in this attribute, can comprise the user, the up multicast address (Address-Upstream-Multicast) that distributes, multicast address classification (Type) and up multicast speed multicast attribute informations such as (Data-Rate-Upstream-Multicast), wherein, the multicast address classification can be used for indicating the up multicast address that is distributed be the overall situation, or local multicast address.Afterwards, it can will be dealt into multicast source terminal 51,52 corresponding network access equipment DSLAM 31,32 respectively by ANCP (Access NodeControl Protocol) agreement under this ascending multicast business controlled attribute.DSLAM 31,32 can upgrade corresponding subscriber's line multicast authority table according to wherein user's line information after receiving this ascending multicast business controlled attribute, promptly this subscriber's line multicast authority table will comprise the ascending multicast business control of authority.
Step S303, multicast source terminal 51,52 is utilized the local multicast address " 224.10.20.1 " that is distributed, the up distribute work that overall multicast address " 224.10.10.1 " is carried out multicast content respectively, sends the multicast contents such as RTP/RTSP/UDP that adapt with the multicast receiving terminal.
Step S304, DSLAM 31,32 carries out corresponding up multicast control operation according to aforementioned subscriber's line multicast authority table, for example: up multicast legitimacy detection, multicast forwarding control and up multicast rate limit etc.In multicast source terminal 51, the 52 uplink multicast data bags that send arrive DSLAM 31,32 o'clock, DSLAM checks that relative users circuit multicast authority list: DSLAM 31 learns by the ascending multicast business controlled attribute and sends from multicast source terminal 51, multicast address is the partial groups unicast packets for " 224.10.10.1 ", it is controlled this multicast traffic stream and can transmit in the localized network scope of appointment, it can insert request and duplicate this multicast packet of forwarding downwards based on the user multicast of this equipment All other routes, for example: the wireless terminal 42 in the user network 40 among Fig. 2 can ask to add this multicast group, DSLAM31 will duplicate this multicast traffic stream for it.And DSLAM 32 by the ascending multicast business controlled attribute learn send from multicast source terminal 52, multicast address is the global group unicast packets for the packet of " 224.10.10.1 ", then upwards transmit corresponding multicast packet according to formed multicast tree in the global network, for example: the wireless terminal 42 in the user network 40 among Fig. 2 can ask to add this multicast group, according to formed multicast tree in the global network, this up multicast will will provide this multicast traffic stream for it by DSLAM 32, switch, DSLAM 31.
Although above-mentioned being illustrated as the invention provides some embodiment; be not to be used for limiting protection scope of the present invention; the professional in present technique field can carry out various modifications to embodiment under the prerequisite that does not depart from the scope of the present invention with spirit, this modification all belongs in the scope of the present invention.
Claims (10)
1. the up multicast control method in the communications network system is characterized in that comprising the steps:
Step a), multicast source terminal are registered its ascending multicast business to management equipment;
Step b), management equipment are up multicast address of multicast source terminal distribution, and the ascending multicast business controlled attribute of this multicast source terminal is issued to the corresponding network access equipment of multicast source end;
Step c), network access equipment are carried out control operation according to this ascending multicast business controlled attribute to the up multicast of described multicast source terminal.
2. the method for claim 1 is characterized in that up multicast address described in the described step b) can reuse in different local area network (LAN) scopes.
3. the method for claim 1 is characterized in that the legitimacy that network access equipment described in the described step c) is finished the user uplink multicast according to user uplink multicast service controlled attribute detects, transmits or the multicast rate controlled.
4. the method for claim 1 is characterized in that management equipment described in the described step b) is issued to corresponding network access equipment by Access Node Control Protocol (ANCP) with the ascending multicast business controlled attribute of this multicast source terminal.
5. one kind is used for the network access equipment that up multicast is controlled, and it is characterized in that comprising:
Receiving system: receive the ascending multicast business controlled attribute that issues from network side multicast service management equipment, upgrade corresponding subscriber's line multicast authority table;
Control device: the uplink multicast data stream that user side sends is carried out control operation according to described subscriber's line multicast authority table.
6. as right 5 described equipment, it is characterized in that described receiving system by Access Node Control Protocol (ANCP) mode receiving multicast business management server issue the ascending multicast business controlled attribute.
7. as right 5 described equipment, it is characterized in that the legitimacy that described control device is finished the user uplink multicast according to user uplink multicast service controlled attribute detects, transmits or rate controlled.
8. one kind is used for the management equipment that up multicast is controlled, and it is characterized in that:
Management devices: receive multicast service registering request, for it distributes corresponding up multicast address and generates an ascending multicast business controlled attribute from client;
Dispensing device: described ascending multicast business controlled attribute is issued to the corresponding network access equipment of client.
9. as claimed in claim 8, it is characterized in that described management devices is that one of client distribution can be carried out reusable up multicast address in different local area network (LAN) scopes according to register requirement.
10. as claimed in claim 8, it is characterized in that described dispensing device issues the ascending multicast business controlled attribute by Access Node Control Protocol (ANCP) mode.
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| CN201010022431XA CN102118254A (en) | 2010-01-05 | 2010-01-05 | Method and device for controlling upstream multicast |
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| CN201010022431XA CN102118254A (en) | 2010-01-05 | 2010-01-05 | Method and device for controlling upstream multicast |
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| CN107086927A (en) * | 2016-04-06 | 2017-08-22 | 腾讯科技（深圳）有限公司 | User's audio frequency and video right management method, device and system |
| WO2018001063A1 (en) * | 2016-06-30 | 2018-01-04 | 中兴通讯股份有限公司 | Method, device and system for transmitting file |
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Application publication date: 20110706 |