CN102036167A - Method and system for reporting resource state in resource management system - Google Patents
Method and system for reporting resource state in resource management system Download PDFInfo
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Abstract
The invention provides a method and a system for reporting a resource state in a resource management system. A coincidence transmission control functional entity of an access node actively reports a resource state of a specific network section to a top transmission control functional entity, and the resource management system executes resource management according to the resource state. Through the method, admission control supports the function of actively reporting the resource state which is triggered by the access node in real time, and an upper transmission control functional entity senses the resource using state of the access node in real time, so that the admission control is well realized.
Description
Technical field
The present invention relates to connect initiation protocol (RCIP by resource in the broadband network, Resource connection initiation protocol) and access network control protocol (ANCP, access network control protocol) realizes multicast admission control technology alternately, refer to realize in a kind of resource management system the method and system that resource situation reports especially based on resource situation.
Background technology
Resource and admission control is a completely new concept of introducing in the next generation network (NGN), and its functional layer is between service control layer and carrying transport layer.By carrying out resource and admission control, upwards transmit the detail of network to the operation layer shielding, 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, transmit Internet resources to guarantee to use with holding water, thereby guarantee professional service quality, and prevent that bandwidth and professional stolen phenomenon from taking place.
ITU has defined resource accommodating control function (RACF), is used for resource and admission control is studied, and Fig. 1 is for the existing network architecture schematic diagram of realizing resource accommodating control function, in Fig. 1,
RACF is made up of policy deciding functional entity (PD-FE) and transmission controlled function entity (TRC-FE).Wherein, the transport layer CAMEL-Subscription-Information that the business information that PD-FE policing rule Network Based, service control layer provide, network attachment function provide, and transmit the resource and admission result of decision that controlled function provides, make the last decision-making of network resource admission control then.TRC-FE and independent of service, but relevant with tranmission techniques.TRC-FE is used to collect and safeguards the topological sum resource state information that transmits net, based on the availability of topology, connectivity, network and node resource, and based on the use of control resources such as transport layer CAMEL-Subscription-Information in the Access Network, carries out to admit and controls transmitting network.
Transmitting function (Transport Functions, or claim transport layer) form by policy execution functional entity (PE-FE) and transmission execution functional entity (TRE-FE).Wherein, PE-FE wraps packet gateway, can be between subscriber terminal equipment and the access network or between Access Network and the core net, perhaps between the different operators network, PE-FE is a key node of supporting dynamic quality of service (QoS) control, port address conversion and control.TRE-FE is used to carry out the transmission resource policy rule of TRC-FE indication.
Also include user resident network (CPN) among Fig. 1; Service control function (Service control functions) is as multimedia system (IMS) etc.; Network attached function (NACF, Network Attachment Control Functions) is used to provide information such as user contracting data.
In transmission network, may there be a plurality of TRC-FE scene of coordinates user resource and admission control together, for example, close the transmission controlled function of putting at access node (Access node) with the transmission entity, realize alternately the admittance of multicast service is controlled by Rp interface and upper strata TRC-FE, can a large amount of Internet resources (as the aggregation networks bandwidth) have been saved shifting access node onto under the multicast replication function like this.For this demand, ITU has defined the RCIP agreement, realizes mutual by start this agreement between two TRC-FE.
For the resource management of access node, the multicast resource mode of appointment is arranged at present, promptly the access node multicast resource is assigned by upper strata TRC-FE fully; And the mode between clean culture and multicast service, shared fully of access node resource.
For the scene that the access node resource is shared between clean culture and multicast fully, Fig. 2 admits the flow chart of control for the multicast resource that existing access node multicast unicast resource is shared, and as shown in Figure 2, may further comprise the steps:
Step 200: customer premises equipment, CPE (CPE) joins request etc. by join request message such as IGMP of multicast, to access node (Access node) request multicast service.
Step 201: the multicast transmission controlled function (MTCF) that is positioned at access node is handled the multicast request message, if the user asks channel still unavailable at access node, this MTCF is to being positioned at transmission controlled function entity (TRC-FE) the transmission admittance control request that closing of access node put, with the admittance control of request channel.
Step 202: access node closes the TRC-FE that puts and carries out access network multicast resource admittance control, assigns the multicast resource that needs for multicast service.
Step 203: access node closes the TRC-FE that puts and returns admittance control response to MTCF, with the admittance control request of response MTCF.
Step 204: access node closes the TRC-FE that puts and reports the tie-in line resource situation to top layer transmission controlled function entity (Top-tierTRC-FE).Tie-in line is a kind of in the particular network section.
Step 205:MTCF returns multicast to CPE and adds response message, to respond this user multicast service request.
In broadband network is disposed, control for access node, the general access network control protocol (ANCP, access network control protocol) of passing through realizes that promptly IP marginal point (BNG/BRAS) connects/control each access node by the ANCP agreement.For multicast admission demand for control as shown in Figure 2, if redeploy the RCIP agreement, not only need existing network is done a large amount of expansions at access node, also be a great challenge to the performance of access node.For this situation, ITU has proposed a kind of new deployment mode, and the access node that Fig. 3 unites deployment for existing ANCP and RCIP is responsible for multicast resource and is admitted the schematic diagram of controlling, as shown in Figure 3.
Upper strata transmission controlled function entity (Top-tier TRC-FE) connects the interior interactive function (IWK) of IP fringe node by the Rp interface, uses the RCIP agreement between upper strata transmission controlled function entity and the IWK; IWK connects the interior TRC-FE of access node by the ANCP agreement.
Current ANCP agreement comprises bandwidth for transmission information (Bandwidth transfer message) and assigns bandwidth response information (delegated bandwidth response message) for the description of access node bandwidth behaviour in service.
Wherein, Bandwidth transfer message is the response to a legal bandwidth allocation request, is used for transmitting appointment access node current bandwidth descriptor to the requestor, and relevant parameter is as shown in table 1:
Table 1
Delegated bandwidth response message is used to respond the bandwidth query requests of an appointment.Its relevant parameter is consistent with Bandwidth transfer message, comprise that value is the type of message indication (TLV Type) of bandwidth status (Band-Status), be used to the bandwidth on demand value (Required amount) of the necessary bandwidth value of the request of describing, and the preferred bandwidth value (Preferred amount) that is used to the preferred bandwidth value of the request of describing.
At present, these message only can support access node as shown in Figure 2 to report the inquiry scene that is sent by BNG, can't support the active reporting functions that access node triggers in real time.Simultaneously, currently close the transmission controlled function of putting with the transmission entity, mutual by Rp interface and upper strata TRC-FE also not to the definition of resource status report message at access node.Like this, the access node of uniting deployment for ANCP and RCIP is responsible for the scene of multicast admission control, has caused the problem that upper strata transmission controlled function entity can't real-time perception access node resource behaviour in service, thereby can not realize admitting control well.
Summary of the invention
In view of this, main purpose of the present invention is to provide and realizes the method that resource situation reports in a kind of resource management system, can support the active reporting functions that access node triggers in real time, realizes admitting control well.
Another object of the present invention is to provide and realize the system that resource situation reports in a kind of resource management system, can support the active reporting functions that access node triggers in real time, realize admitting control well.
For achieving the above object, technical scheme of the present invention is achieved in that
Realize the method that resource situation reports in a kind of resource management system, comprising:
Closing in the access node put transmission controlled function entity, initiatively reports the resource situation of particular network section to top layer transmission controlled function entity, and resource management system is carried out resource management according to described resource situation.
Also comprise before this method: described access node is carried out the access network multicast resource and is admitted control, assigns the multicast resource that needs for multicast service.
Closing in the described access node put transmission controlled function entity and initiatively specifically comprised to the resource situation of top layer transmission controlled function entity report particular network section:
Closing in the described access node put transmission controlled function entity and reported the multicast resource that has activated according to access network control protocol ANCP to the IP fringe node, and the IP fringe node connects initiation protocol RCIP reports resource situation from the particular network section to top layer transmission controlled function entity according to resource.
Closing in the described access node put transmission controlled function entity: closing in the described access node put transmission controlled function entity and reported message by the ANCP resource situation, reports the multicast resource that has activated to the IP fringe node;
Described ANCP resource situation is reported the bandwidth descriptor of the multicast resource that carries type of message indication and current activation in the message.
Described IP fringe node according to the resource situation that RCIP reports the particular network section to top layer transmission controlled function entity is: described IP fringe node is reported message by the RCIP bandwidth, reports the multicast resource that has activated to top layer transmission controlled function entity;
Described RCIP bandwidth is reported the multicast resource bandwidth numerical value that carries type of message indication and current activation in the message.
Described particular network section is a tie-in line.
Realize the system that resource situation reports in a kind of resource management system, comprise that at least closing in the access node put transmission controlled function entity, top layer transmits the controlled function entity, wherein,
Closing in the described access node put transmission controlled function entity, is used for initiatively reporting to top layer transmission controlled function entity the resource situation of particular network section;
Described top layer transmission controlled function entity is used to receive the described resource situation of putting the particular network section that transmission controlled function entity initiatively reports of closing, so that resource management system is carried out resource management according to described resource situation.
Described access node also is used for, and carries out the access network multicast resource and admits control, assigns the multicast resource that needs for multicast service.
Described system also comprises the IP fringe node;
Closing in the described access node put transmission controlled function entity, specifically be used for reporting the multicast resource that has activated according to access network control protocol ANCP to the IP fringe node, the IP fringe node connects initiation protocol RCIP reports resource situation from the particular network section to top layer transmission controlled function entity according to resource.
The technical scheme that provides from the invention described above as can be seen, closing in the access node put transmission controlled function entity, initiatively report the resource situation of particular network section to top layer transmission controlled function entity, resource management system is carried out resource management according to described resource situation.By the inventive method, make and admit control to support the function that initiatively reports resource situation that access node triggers in real time.Guarantee upper strata transmission controlled function entity real-time perception access node resource behaviour in service, thereby realized admitting control well.
Description of drawings
Fig. 1 is the existing network architecture schematic diagram of realizing resource accommodating control function;
Fig. 2 admits the flow chart of control for the multicast resource that existing access node multicast unicast resource is shared;
The access node that Fig. 3 unites deployment for existing ANCP and RCIP is responsible for multicast resource and is admitted the schematic diagram of controlling;
Fig. 4 is for realizing the flow chart of the method that resource situation reports in the resource management system of the present invention;
Fig. 5 admits the flow chart of the embodiment of control for the present invention realizes the multicast unicast resource of sharing.
Embodiment
Fig. 4 as shown in Figure 4, unites the access node of deployment and is responsible for the scene that multicast admission is controlled for realizing the flow chart of the method that resource situation reports in the resource management system of the present invention for ANCP and RCIP, the inventive method may further comprise the steps:
Step 400: access node is carried out the access network multicast resource and is admitted control, assigns the multicast resource that needs for multicast service.
The realization of this step belongs to prior art, and is in full accord with step 200～step 202, repeats no more here.In addition, access node closes the TRC-FE that puts and also returns admittance control response to MTCF, and the admittance control request with response MTCF need to prove, returning between the execution of admitting control response and the step 401 does not have sequencing.
Step 401: access node is reported the multicast resource that has activated according to ANCP to the IP fringe node, and the IP fringe node is reported the resource situation of particular network section to top layer transmission controlled function entity according to RCIP.
Access node is reported message by the ANCP resource situation shown in the table 2, reports the multicast resource that has activated to the IP fringe node.
The ANCP resource situation is reported message (ANCP bandwidth report message), be mainly used in after the user asks the multicast resource of multicast service to admit control by (being that step 400 is carried out), by being positioned at TRC-FE that closing of access node put initiatively to the resource situation of IP fringe node report particular network section.
Resource management system is carried out resource management according to described resource situation.
The ANCP resource situation is reported and is carried bandwidth report information (bandwidth report message) in the message, parameter mainly comprises type of message indication (TLV Type), its value is bandwidth report (Band-report), and being used for indication is that a bandwidth is reported message; And the bandwidth descriptor that is applied to multicast service (Committed amount) of the current activation of access node, be used to describe the bandwidth numerical value that is applied to multicast service that access node has activated.
Table 2
The IP fringe node adopts RCIP message to report the resource situation of particular network section to top layer transmission controlled function entity.This RCIP message is reported message for the RCIP bandwidth, wherein carries the multicast bandwidth numerical value (being the current multicast resource that has activated) of the current activation of type of message indication (being used to indicate type of message is that bandwidth is reported message) and particular network section.
By the inventive method, unite the access node of deployment at ANCP and RCIP and be responsible under the scene of multicast admission control, supported the function that initiatively reports resource situation that access node triggers in real time.Guarantee upper strata transmission controlled function entity real-time perception access node resource behaviour in service, thereby realized admitting control well.
Fig. 5 admits the flow chart of the embodiment of control for the present invention realizes the multicast unicast resource of sharing, and in the present embodiment, is that tie-in line is that example is described with the particular network section.As shown in Figure 5, may further comprise the steps:
Step 500:CPE joins request etc. by join request message such as IGMP of multicast, to access node (Access node) request multicast service.
Step 501: the MTCF that is positioned at access node handles the multicast request message, if the user asks channel still unavailable at access node, this MTCF is to being positioned at the TRC-FE transmission admittance control request that closing of access node put, with the admittance control of request channel.
Step 502: access node closes the TRC-FE that puts and carries out access network multicast resource admittance control, assigns the multicast resource that needs for multicast service.
Step 503: access node closes the TRC-FE that puts and returns admittance control response to MTCF, with the admittance control request of response MTCF.
Step 504:MTCF returns multicast to CPE and adds response message, to respond this user multicast service request.
Step 505: access node closes the ANCP multicast resource report that the TRC-FE that puts triggers the multicast resource description that comprises activation, and the IWK in fringe node sends ANCP multicast resource report message.The ANCP multicast resource is reported message and is carried bandwidth report information (bandwidth report message), wherein comprises the multicast resource bandwidth descriptor that has activated the current access point.
Step 506: fringe node termination ANCP message sends RCIP tie-in line resource situation to top layer transmission controlled function entity and reports message.
Fringe node is reported the tie-in line resource situation according to RCIP to top layer transmission controlled function entity.This RCIP message is reported message for the RCIP bandwidth, wherein comprises the multicast bandwidth numerical value of type of message indication (being used to indicate type of message is that bandwidth is reported message) and the current activation of tie-in line.
Wherein, step 503 and step 504 do not have sequencing with the execution of step 505 and step 506.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. realize the method that resource situation reports in a resource management system, it is characterized in that, comprising:
Closing in the access node put transmission controlled function entity, initiatively reports the resource situation of particular network section to top layer transmission controlled function entity, and resource management system is carried out resource management according to described resource situation.
2. method according to claim 1 is characterized in that, also comprises before this method: described access node is carried out the access network multicast resource and is admitted control, assigns the multicast resource that needs for multicast service.
3. method according to claim 1 and 2 is characterized in that, closing in the described access node put transmission controlled function entity and initiatively specifically comprised to the resource situation of top layer transmission controlled function entity report particular network section:
Closing in the described access node put transmission controlled function entity and reported the multicast resource that has activated according to access network control protocol ANCP to the IP fringe node, and the IP fringe node connects initiation protocol RCIP reports resource situation from the particular network section to top layer transmission controlled function entity according to resource.
4. method according to claim 3, it is characterized in that, closing in the described access node put transmission controlled function entity: closing in the described access node put transmission controlled function entity and reported message by the ANCP resource situation, reports the multicast resource that has activated to the IP fringe node;
Described ANCP resource situation is reported the bandwidth descriptor of the multicast resource that carries type of message indication and current activation in the message.
5. method according to claim 3, it is characterized in that, described IP fringe node according to the resource situation that RCIP reports the particular network section to top layer transmission controlled function entity is: described IP fringe node is reported message by the RCIP bandwidth, reports the multicast resource that has activated to top layer transmission controlled function entity;
Described RCIP bandwidth is reported the multicast resource bandwidth numerical value that carries type of message indication and current activation in the message.
6. according to each described method of claim 1～5, it is characterized in that described particular network section is a tie-in line.
7. realize the system that resource situation reports in a resource management system, it is characterized in that, comprise that at least closing in the access node put transmission controlled function entity, top layer transmits the controlled function entity, wherein,
Closing in the described access node put transmission controlled function entity, is used for initiatively reporting to top layer transmission controlled function entity the resource situation of particular network section;
Described top layer transmission controlled function entity is used to receive the described resource situation of putting the particular network section that transmission controlled function entity initiatively reports of closing, so that resource management system is carried out resource management according to described resource situation.
8. system according to claim 7 is characterized in that described access node also is used for, and carries out the access network multicast resource and admits control, assigns the multicast resource that needs for multicast service.
9. according to claim 7 or 8 described systems, it is characterized in that described system also comprises the IP fringe node;
Closing in the described access node put transmission controlled function entity, specifically be used for reporting the multicast resource that has activated according to access network control protocol ANCP to the IP fringe node, the IP fringe node connects initiation protocol RCIP reports resource situation from the particular network section to top layer transmission controlled function entity according to resource.
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| CN102907044A (en) * | 2011-05-27 | 2013-01-30 | 华为技术有限公司 | Service scheduling method and apparatus under multiple broadband network gateways |
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