CN102035792A - Multicast resource management method and device - Google Patents
Multicast resource management method and device Download PDFInfo
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- CN102035792A CN102035792A CN2009100935145A CN200910093514A CN102035792A CN 102035792 A CN102035792 A CN 102035792A CN 2009100935145 A CN2009100935145 A CN 2009100935145A CN 200910093514 A CN200910093514 A CN 200910093514A CN 102035792 A CN102035792 A CN 102035792A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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
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Abstract
The invention discloses a multicast resource management method, which comprises that: a transport control functional entity in a transport node and a top transport control functional entity execute access line multicast aggregate resource management according to an aggregate resource library object for describing aggregate resources in interactive resource connection initiation protocol (RCIP) message. The invention simultaneously discloses a multicast resource management device, which comprises a setting unit and a management unit, wherein the setting unit is used for setting the aggregate resource library object for describing the aggregate resources in the interactive RCIP message of the transport control functional entity in the transport node and the top transport control functional entity; and the management unit is used for executing the access line multicast aggregate resource management according to the aggregate resource library object. The aggregate resource library object and the related information carrying the multicast resources are redefined, the multicast resource management can be realized through the aggregate resource library object, and the resource access control of multicast services is realized so that the application scene of the RCIP is expanded.
Description
Technical field
The present invention relates to connect initiation protocol (RCIP based on resource, Resource Connection InitiationProtocol) transmission controlled function entity (TRC-FE, Transport Resource Control FunctionEntity) realizes the technology of multicast resource management between alternately, relate in particular to a kind of method and apparatus of multicast resource management.
Background technology
Resource and admission control is a completely new concept of introducing in the next generation network (NGN, Next Generation Network), and its functional layer is between service control layer and carrying transport layer.By the resource and admission control technology, upwards transmit the detail of network to the operation layer shielding, and supporting business control is separated with transmitting function, perception downwards transmits the resource operating position of network, by admitting the control of control and resource, guarantee to use with holding water and transmit Internet resources, thereby guarantee professional service quality, and prevent that bandwidth and professional stolen phenomenon from taking place.
(the ITU of International Telecommunications Union, International Telecommunication Union) defined resource accommodating control function (RACF, Resource Access Control Function) entity is responsible for it is carried out evolution, Fig. 1 is an existing resource accommodating control function network architecture diagram, as shown in Figure 1, the RACF entity comprises following network element:
Policy deciding functional entity (PD-FE, Policy Decision Functional Entity) policing rule Network Based, the business information that service control layer provides, the transport layer CAMEL-Subscription-Information that the network attachment function provides, and the transmission resource and admission result of decision that provides of controlled function and make the last decision-making of network resource admission control.
Transmission controlled function (TRC-FE) and independent of service, but relevant with tranmission techniques.The TRC-FE entity is responsible for collecting and safeguarding the topological sum resource state information that transmits net, availability based on topology, connectivity, network and node resource, and, carry out and admit control transmitting network based on the use of control such as transport layer CAMEL-Subscription-Information in Access Network resource.
Transport layer is carried out functional entity (TRE-FE, Transport Resource Enforcement FunctionalEntity) by policy execution functional entity (PE-FE, Policy Enforcement Functional Entity) and transmission and is formed.
PE-FE is the gateway of bag, can be between subscriber terminal equipment and the access network, between Access Network and the core net or between the different operators network, it is the key node of supporting dynamic quality of service (QoS, Quality ofService) control, port address conversion and control.TRE-FE carries out the transmission resource policy rule of TRC-FE indication.CPN (Customer Premises Network) is the user resident network, is the resident network of active user.
Service control function (Service control function) entity comprises as IP Multimedia System (IMS, IP Muhimedia Subsystem) etc.
Network attached function (NACF, Network Attachment Control Function) entity is responsible for providing information such as user contracting data.
In transmission network, may exist a plurality of transmission controlled function entities to coordinate to be responsible for the scene that user resources are admitted control together, for example, close the transmission controlled function entity of putting at transmission node with the transmission entity, realize management alternately by Rp interface (Resource control protocol at the Rt interface) and upper strata TRC-FE to multicast resource, can a large amount of Internet resources have been saved shifting access point onto under the multicast replication function like this.Based on this demand, ITU has just defined the RCIP agreement, realizes mutual by start this agreement between two TRC-FE.
Fig. 2 admits the control schematic diagram for the multicast resource that transmits after the controlled function entity interaction is transferred, and as shown in Figure 2, SCF is a service control function, carries out the mutual of signaling plane with customer premises equipment, CPE CPE; Include in the transmission node (Transport Node) to close and put transmission controlled function (co-located TRC-FE), multicast controlled function (MTCF, Multicast Transport Control Function) and multicast replication function (MRF).Top layer transmission controlled function entity (Top-tire TRC-FE) and transmission node close to put between the transmission controlled function and use the RCIP protocol interaction by the Rp interface.
In current RCIP, Business Stream information (flowinformation) when only comprising and business demand resource description information (flow traffic information) to the unicast service request, wherein, Flowinformation is used to identify IP traffic, and its descriptor that comprises is as shown in table 1:
Table 1
Flow traffic information is used to describe the quality of service requirements of unicast service flow object, and its descriptor that comprises is as shown in table 2:
| bandwidth?peak?value： | Be used to identify the peak bandwidth of stream demand |
| average?bandwidth | Be used to identify the average bandwidth of stream demand |
| minimum?bandwidth | Be used to identify the minimum bandwidth of stream demand |
| Priority | Be used to identify the priority of stream |
Table 2
For the multicast resource management that the RACF entity is responsible for, the RACF entity needs the information such as bandwidth that multicast service takies on the original allocation tie-in line.Simultaneously, under the not enough situation of follow-up tie-in line multicast resource, can trigger adjustment by tie-in line to multicast service occupied bandwidth share.In current RCIP, this part tie-in line assigns the multicast resource description information can't obtain embodying in agreement.Need expand agreement and could support this multicast resource regulatory requirement of transferring.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of multicast resource management, can realize that the multicast resource when TRC-FE transfers is admitted control.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method of multicast resource management comprises:
Transmission controlled function entity in the transmission node and top layer transmission controlled function entity is connected the polymerization resources bank object of the description polymerization resource that comprises in the initiation protocol message, execution resource management according to its mutual resource.
Preferably, at least comprise in the described polymerization resources bank object distribute the bandwidth information of polymerization resource, and sign/subscriber equipment of inserting of the physics that connects of subscriber equipment logic of the adhering to sign or the sign of the sign/logical resource of physical resource in aggregation networks in aggregation networks that insert.
Preferably, also comprise in direction, quality of service type and the flow descriptor of the polymerization resource of being assigned one or multinomial in the described polymerization resources bank object.
Preferably, carry out resource management, comprising:
After receiving the RCIP polymerization resource allocation request of described top layer transmission controlled function entity, or after receiving the RCIP polymerization resource adjustment request responding of described top layer transmission controlled function entity to the transmission controlled function entity in the described transmission node, the transmission controlled function entity in the described transmission node carries out the installation of tie-in line multicast polymerization resource share according to the polymerization resources bank object in described RCIP request or the described RCIP response.
A kind of device of multicast resource management comprises:
The unit is set, is used in the RCIP message of the transmission controlled function entity of transmission node and top layer transmission controlled function entity interaction, the polymerization resources bank object of describing the polymerization resource being set; And
Administrative unit is used for carrying out resource management according to described polymerization resources bank object.
Preferably, at least comprise in the described polymerization resources bank object distribute the bandwidth information of polymerization resource, and sign/subscriber equipment of inserting of the physics that connects of subscriber equipment logic of the adhering to sign or the sign of the sign/logical resource of physical resource in aggregation networks in aggregation networks that insert.
Preferably, also comprise in direction, quality of service type and the flow descriptor of the polymerization resource of being assigned one or multinomial in the described polymerization resources bank object.
Preferably, described administrative unit comprises:
Receive subelement, be used to receive the RCIP polymerization resource allocation request of described top layer transmission controlled function entity, or receive the RCIP polymerization resource adjustment request responding of described top layer transmission controlled function entity the transmission controlled function entity in the described transmission node; And
Subelement is installed, is used for after described reception subelement receives described RCIP request or described RCIP response, carrying out the installation of tie-in line multicast polymerization resource share according to the polymerization resources bank object in described RCIP request or the described RCIP response.
Among the present invention, when transferring in the lower network element such as transmission node as TRC-FE, because the management of the multicast resource when existing RCIP does not relate to TRC-FE and transfers, can not realize in the lower network element such as transmission node this moment the multicast resource of multicast service is admitted control, this has fettered the support of current network to multicast service undoubtedly, can not realize the optimization of Internet resources.The present invention carries the relevant information of multicast resource by redefining polymerization resources bank object, can realize management to multicast resource by this polymerization resources bank object, realizes the resource and admission control to multicast service, thereby has expanded the application scenarios of RCIP.Technical solution of the present invention realizes simple and practical, realizes that cost is lower.
Description of drawings
Fig. 1 is the flow chart of the register method of user in the access gateway control function entity of the present invention;
Fig. 2 admits the control schematic diagram for the multicast resource that transmits after the controlled function entity interaction is transferred;
Fig. 3 adjusts the flow chart of tie-in line multicast polymerization resource bandwidth for top layer transmission controlled function entity requests of the present invention;
Transmission node distributed the flow chart of multicast polymerization resource to the adjustment of upper strata transmission controlled function entity requests when Fig. 4 asked multicast service for user of the present invention;
Fig. 5 is the composition structural representation of the device of multicast resource management of the present invention.
Embodiment
Basic thought of the present invention is: when transferring in the lower network element such as transmission node as TRC-FE, because the management of the multicast resource when existing RCIP does not relate to TRC-FE and transfers, multicast service in this moment lower network element such as transmission node can not be realized the multicast resource of multicast service is admitted control, this has fettered the support of current network to multicast service undoubtedly, can not realize the optimization of Internet resources.The present invention carries the relevant information of multicast resource by redefining polymerization resources bank object, can realize management to multicast resource by this polymerization resources bank object, to the resource and admission control of multicast service, thereby has expanded the application scenarios of RCIP.Technical solution of the present invention realizes simple and practical, realizes that cost is lower.
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 3 is the flow chart of top layer transmission controlled function entity requests adjustment tie-in line polymerization resource bandwidth of the present invention, as shown in Figure 3, may further comprise the steps:
Step 301: top layer transmission controlled function entity (TRC-FE) triggers and is adjusted at the share that tie-in line is the polymerization resource of multicast service distribution.Trigger the adjustment of tie-in line multicast polymerization resource share by top layer TRC-FE, for example can be based on the adjustment of the polymerization resource share that network strategy initiates, or the current network available resources are initiatively adjusted the multicast polymerization resource share of tie-in line when not enough.
Step 302: top layer TRC-FE puts transmission controlled function entity (TRC-FE) to closing of transmission node and sends RCIP multicast polymerization resource allocation request message.Comprise complete polymerization resources bank (aggregate resource profile) object information in this multicast polymerization resource allocation request message, the parametric description that aggregate resourceprofile comprises is as shown in table 3:
| Parameter | Parametric description |
| -direction (optional) | Be used to describe the direction of the polymerization resource of this distribution |
| -physics inserts sign (optional) | The physical label of the tie-in line that the user connects |
| -logic inserts sign (optional) | The logical identifier of the tie-in line that the user adheres to |
| -physics converges sign (optional) | The sign of physical resource in aggregation networks |
| -logic converges sign (optional) | The sign of logical resource in aggregation networks |
| -bandwidth | The bandwidth descriptor of the resource of assigning |
| -QoS type (optional) | The QoS type |
| -flow is described (optional) | The flow descriptor |
Table 3
Wherein, the item that identifies " optional " among the aggregate resource profile is the information that must comprise, except that above-mentioned essential option, also must comprise physics among the aggregate resource profile and insert sign/logic access sign, perhaps physics converges sign/logic and converges sign.
Step 303: close and put transmission controlled function entity, multicast resource is installed according to the indication of the allocated bandwidth in the RCIP multicast polymerization resource allocation request message.For example, close put transmission controlled function entity and receive RCIP polymerization resource allocation request message after, obtain the bandwidth bandwidth 100M that the parameter physics that comprises among the aggregate resource profile inserts sign Physical Access ID 1 and distributed.
This closes and puts transmission controlled function entity is the multicast aggregate bandwidth that tie-in line Physical Access ID 1 distributes 100M.
Step 304: close and put the RCIP response message that the response of transmission controlled function entity comprises this time multicast polymerization resource allocation result.
Transmission node distributed the flow chart of multicast polymerization resource to the adjustment of upper strata transmission controlled function entity requests when Fig. 4 asked multicast service for user of the present invention, as shown in Figure 4, may further comprise the steps:
Step 401: customer premises equipment, CPE multicast message such as joins request to transmission node request multicast service by IGMP (IGMP, Internet GroupManagement Protocol).
Step 402: the multicast transmission controlled function entity (MTCF) that is positioned at transmission node is handled the multicast request message, if the channel of user's request is still unavailable at transmission node, this multicast transmission controlled function entity is put transmission controlled function entity (TRC-FE) request resource to closing of transmission node and is admitted control.
Step 403: close the transmission controlled function entity of putting and carry out resource and admission control, adjust the multiplaying service resource budget if desired, send multicast polymerization resource to top layer transmission controlled function entity (TRC-FE) and adjust request message, this multicast polymerization resource is adjusted in the request message and is comprised complete aggregate resource profile object information, aggregate resource profile comprises shown in parametric description and the table 3 identical, wherein, the item of sign " optional " is not the information that must comprise, except that above-mentioned essential option, also must comprise physics among the aggregateresource profile and insert sign/logic access sign, perhaps physics converges sign/logic and converges sign.
Step 404: top layer transmission controlled function entity responds this time multicast polymerization resource adjustment request, authorize multicast polymerization resource to adjust, the RCIP response message that wherein comprises detailed multicast polymerization resource allocation result, promptly comprise the attribute information shown in the table 3 in this RCIP response message, its specifying information that comprises repeats no more here referring to aforementioned associated description.
For example, top layer transmission controlled function entity receives and obtains parameter Physical Access ID 1 and the bandwidth 100M that comprises among the aggregate resource profile after multicast polymerization resource is adjusted request message.If top layer transmission controlled function entity is agreed this time adjustment, response results then can comprise this sub-distribution result, wherein comprises parameter Physical Access ID 1, bandwidth 100M in the aggregate resource object.If disagree with this time adjustment, then to return multicast polymerization resource and adjust failed message, current flow process finishes.
Step 405: this closes puts transmission controlled function entity according to the indication of the multicast polymerization resource allocation in the RCIP response message, and multicast resource is installed.For example, closing and put transmission controlled function entity and receive after RCIP distributes bandwidth to adjust response message as mentioned above, will be the multicast aggregate bandwidth that tie-in line Physical Access ID 1 distributes 100M.
Step 406: close the admittance control request of putting transmission controlled function entity response multicast transmission controlled function.
Step 407: multicast transmission controlled function response user multicast service request.
Fig. 5 is the composition structural representation of the device of multicast resource management of the present invention, as shown in Figure 5, the device of multicast resource of the present invention management comprises unit 50 and administrative unit 51 is set, wherein, unit 50 being set is used in the RCIP message of the transmission controlled function entity of transmission node and top layer transmission controlled function entity interaction the polymerization resources bank object of describing the polymerization resource being set; Administrative unit 51 is used for carrying out tie-in line multicast polymerization resource management according to described polymerization resources bank object.Wherein, at least the bandwidth information that comprises Resources allocation in the described polymerization resources bank object, and sign/subscriber equipment of inserting of the physics that connects of subscriber equipment logic of the adhering to sign or the sign of the sign/logical resource of physical resource in converging network in converging network that insert.Also comprise in direction, quality of service type and the flow descriptor of the polymerization resource of being assigned one or multinomial in the described polymerization resources bank object.
As shown in Figure 5, administrative unit 51 of the present invention comprises reception subelement 510 and subelement 511 is installed, wherein, receive subelement 510 and be used to receive the RCIP request that described top layer transmits the multicast polymerization resource allocation of controlled function entity, or receive of the RCIP response of described top layer transmission controlled function entity the multicast polymerization resource adjustment request of the transmission controlled function entity in the described transmission node; Subelement 511 is installed to be used for carrying out the installation of tie-in line multicast polymerization resource share according to the polymerization resources bank object in described RCIP request or the described RCIP response after reception subelement 510 receives described RCIP request or described RCIP response.
Those skilled in the art are to be understood that, the device of multicast resource management shown in Figure 5 is to design for the method that realizes aforesaid multicast resource management, the function of each processing unit can be understood with reference to the associated description among earlier figures 3, Fig. 4 in the device shown in Figure 5, the function of each processing unit and subelement can realize by the program that runs on the processor, also can realize by concrete logical circuit.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (8)
1. the method for a multicast resource management is characterized in that, comprising:
Transmission controlled function entity in the transmission node and top layer transmission controlled function entity is connected the polymerization resources bank object of the description polymerization resource that comprises in the initiation protocol message, execution resource management according to its mutual resource.
2. method according to claim 1, it is characterized in that, at least comprise in the described polymerization resources bank object distribute the bandwidth information of polymerization resource, and sign/subscriber equipment of inserting of the physics that connects of subscriber equipment logic of the adhering to sign or the sign of the sign/logical resource of physical resource in aggregation networks in aggregation networks that insert.
3. method according to claim 2 is characterized in that, also comprises in direction, quality of service type and the flow descriptor of the polymerization resource of being assigned one or multinomial in the described polymerization resources bank object.
4. method according to claim 1 is characterized in that, carries out resource management, comprising:
After receiving the RCIP polymerization resource allocation request of described top layer transmission controlled function entity, or after receiving the RCIP polymerization resource adjustment request responding of described top layer transmission controlled function entity to the transmission controlled function entity in the described transmission node, the transmission controlled function entity in the described transmission node carries out the installation of tie-in line multicast polymerization resource share according to the polymerization resources bank object in described RCIP request or the described RCIP response.
5. the device of a multicast resource management is characterized in that, comprising:
The unit is set, is used in the RCIP message of the transmission controlled function entity of transmission node and top layer transmission controlled function entity interaction, the polymerization resources bank object of describing the polymerization resource being set; And
Administrative unit is used for carrying out resource management according to described polymerization resources bank object.
6. device according to claim 5, it is characterized in that, at least comprise in the described polymerization resources bank object distribute the bandwidth information of polymerization resource, and sign/subscriber equipment of inserting of the physics that connects of subscriber equipment logic of the adhering to sign or the sign of the sign/logical resource of physical resource in aggregation networks in aggregation networks that insert.
7. device according to claim 6 is characterized in that, also comprises in direction, quality of service type and the flow descriptor of the polymerization resource of being assigned one or multinomial in the described polymerization resources bank object.
8. device according to claim 5 is characterized in that, described administrative unit comprises:
Receive subelement, be used to receive the RCIP polymerization resource allocation request of described top layer transmission controlled function entity, or receive the RCIP polymerization resource adjustment request responding of described top layer transmission controlled function entity the transmission controlled function entity in the described transmission node; And
Subelement is installed, is used for after described reception subelement receives described RCIP request or described RCIP response, carrying out the installation of tie-in line multicast polymerization resource share according to the polymerization resources bank object in described RCIP request or the described RCIP response.
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| CN2009100935145A CN102035792A (en) | 2009-09-24 | 2009-09-24 | Multicast resource management method and device |
| PCT/CN2010/076079 WO2011035662A1 (en) | 2009-09-24 | 2010-08-17 | Method and device for multicast resource management |
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| CN2009100935145A CN102035792A (en) | 2009-09-24 | 2009-09-24 | Multicast resource management method and device |
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| CN101309238B (en) * | 2008-06-30 | 2011-04-20 | 中兴通讯股份有限公司 | Resource admission control system and method for network of multiple protocol label switch structure |
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| WO2005099215A1 (en) * | 2004-04-02 | 2005-10-20 | France Telecom | Apparatuses and method for controlling access to an ip multimedia system from an application server |
| CN1855928A (en) * | 2005-04-29 | 2006-11-01 | 华为技术有限公司 | Service qualification |
| CN101345744A (en) * | 2007-07-12 | 2009-01-14 | 中兴通讯股份有限公司 | Method and system for implementing reserved request of multicast resource |
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Application publication date: 20110427 |