CN102098204A - Method and system for managing multicast resource - Google Patents
Method and system for managing multicast resource Download PDFInfo
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- CN102098204A CN102098204A CN2009102469785A CN200910246978A CN102098204A CN 102098204 A CN102098204 A CN 102098204A CN 2009102469785 A CN2009102469785 A CN 2009102469785A CN 200910246978 A CN200910246978 A CN 200910246978A CN 102098204 A CN102098204 A CN 102098204A
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- H—ELECTRICITY
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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
- H04L12/189—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems
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Abstract
The invention discloses a method for managing a multicast resource, which comprises the following steps that: a top universal resource admission control function entity (X-RACF) sends a diameter multicast aggregate resource bandwidth regulation indicating message to a bottom X-RACF, wherein the indicating message comprises multicast aggregate resource block description information; and the bottom X-RACF executes the regulation on multicast resource bandwidth designated by an access line according to the multicast aggregate resource block description information in the diameter multicast aggregate resource bandwidth regulation indicating message. The method and the system realize support of the transmitted multicast resource admission control based on a diameter protocol of an Rr interface.
Description
Technical field
The present invention relates to the multicast resource administrative skill, relate in particular to a kind of method and system of managing multicast resource.
Background technology
Resource and admission control is a novel 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 carrying out resource and admission control, upwards can transmit the detail of network to the operation layer shielding, supporting business control is separated with transmitting function; The resource operating position that can perception transmits network downwards.By admitting the control of control and resource, can guarantee that the use that holds water transmits Internet resources, thereby guarantee professional service quality, and prevent that bandwidth and professional stolen phenomenon from taking place.
Telecommunications and the Internet converged services and high-level network protocol (TISPAN, Telecommunications andInternet Converged Services and Protocols for Advanced Networking) defined Resource and Admission Control Sub-system (RACS, Resource and Admission Control Subsystem) the network architecture, as shown in Figure 1, business game decision making function entity (SPDF, Service Policy Decision Function) business information that provides based on operation layer etc. is provided is made final strategic decision-making based on business; Generic resource accommodating control function entity (X-RACF) is responsible for user's access and is admitted control and resource control; Resource Control Enforcement Function entity (RCEF, Resource Control Enforcement Function) is responsible for carrying out the strategy that receives; Border Gateway Function entity (BGF, Border Gateway Function) is responsible for strategy execution and port address conversion; Basic transfer function entity (BTF, Base Transport Function) is a data transmission nodal; Application Service Function entity (AF, Application Function) is as IP Multimedia System (IMS, IP Multimedia Subsystem) or the like; Network attached subsystem (NASS, NetworkAttachment Subsystem) be responsible for providing information such as user contracting data.
In network, may there be the common scene of coordinating to be responsible for user resources admittance control of a plurality of X-RACF, for example: close the X-RACF that puts at access node and BTF, realize alternately the admittance of multicast service is controlled by Rr interface and top layer X-RACF, so just can will shift access node onto under the multicast replication function, thereby save a large amount of Internet resources.For this demand, TISPAN has expanded the diameter agreement, realizes alternately by the diameter message of transmitting expansion between two resource accommodating control function entities.
In current description to this expansion diameter agreement, the Business Stream descriptor when only having comprised the unicast service request is promptly expanded the Streaming Media component description (media-component-description) in the diameter agreement.Media-component-description is used to identify detailed IP stream, and it comprises the description as following table 1:
| ?media?type | Streaming Media type identification, for example video flowing |
| ?media?ID | The sign of dedicated stream medium |
| ?media?priority | Streaming Media is performed the priority tag when admitting control |
| ?traffic?flow?parameters | Medium flow information description |
Table 1
Wherein, traffic flow parameters specifically comprises following subparameter:
| ?direction | The identification medium flow path direction |
| ?Flow?ID | The sign of dedicated stream |
| ?IP?address | Source and purpose IP address |
| ?ports | Source and destination interface |
| ?Protocol | Protocol-identifier |
| ?bandwidth | Bandwidth is described |
| ?Reservation?class | The traffic characteristic message identification |
| ?Transport?service?class | Identifying resource is transmitted behavior |
Table 2
Admit control for clean culture/multicast resource that RACS is responsible for, RACS needs the bandwidth that multicast service/unicast service takies on the initial assignment tie-in line, and multicast resource is in the information such as sign of aggregation networks.Under the not enough situation of follow-up tie-in line multicast resource bandwidth, also might by tie-in line trigger or top layer X-RACF initially to the adjustment of current multicast service occupied bandwidth.In the diameter of current expansion agreement, the descriptor of this part multicast resource, multicast resource can't obtain embodying in agreement at identification information of aggregation networks or the like.
Because do not comprise the descriptor for multicast resource in the diameter agreement of current expansion, top layer X-RACF and the X-RACF of lower floor can't carry out alternately with regard to the multicast resource situation, admit demand for control thereby can't satisfy the multicast resource of transferring.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method and system of managing multicast resource, admits demand for control to satisfy the multicast resource of transferring.
For achieving the above object, technical scheme of the present invention is achieved in that
The present invention also provides a kind of method of managing multicast resource, and this method comprises:
Top layer generic resource accommodating control function entity (X-RACF) sends diameter multicast polymerization resource bandwidth to bottom X-RACF and adjusts Indication message, comprises multicast polymerization Resource Block descriptor in the described Indication message;
Described bottom X-RACF carries out the adjustment of the multicast resource bandwidth that tie-in line is assigned according to the multicast polymerization Resource Block descriptor in the described diameter multicast polymerization resource bandwidth adjustment Indication message.
Comprise bandwidth (bandwidth) parameter in the described multicast polymerization Resource Block descriptor, and the physics that subscriber equipment connects inserts logic access sign or the physics polymerization sign/logic polymerization sign that sign/subscriber equipment adheres to;
Accordingly, the described adjustment of carrying out the multicast resource bandwidth that tie-in line is assigned according to multicast polymerization Resource Block descriptor, be specially:, adjust the multicast resource bandwidth that tie-in line is assigned according to the indication of bandwidth parameter in the described multicast polymerization Resource Block descriptor.
Also comprise one of following in the described multicast polymerization Resource Block descriptor or combination in any: reserved resource direction, reservation types and transport service type.
Described diameter multicast polymerization resource bandwidth is adjusted Indication message and comprised: diameter multicast polymerization resource bandwidth reduction Indication message and diameter multicast polymerization resource bandwidth increase Indication message.
The value of the bandwidth parameter in the described diameter multicast polymerization resource bandwidth reduction Indication message is: be the value of the multicast polymerization resource bandwidth of tie-in line appointment, deducted the value of the resource bandwidth of this reduction;
The value that described diameter multicast polymerization resource bandwidth increases the bandwidth parameter in the Indication message is: be the value of the multicast polymerization resource bandwidth of tie-in line appointment, added the value of the resource bandwidth of this multicast service application.
The present invention also provides a kind of system of managing multicast resource, and this system comprises: top layer X-RACF and bottom X-RACF, wherein,
Described top layer X-RACF is used for sending diameter multicast polymerization resource bandwidth to described bottom X-RACF and adjusts Indication message, comprises multicast polymerization Resource Block descriptor in the described Indication message;
Described bottom X-RACF is used for the multicast polymerization Resource Block descriptor according to diameter multicast polymerization resource bandwidth adjustment Indication message, carries out the adjustment of the multicast resource bandwidth that tie-in line is assigned.
The physics that comprises the connection of bandwidth parameter and subscriber equipment in the described multicast polymerization Resource Block descriptor inserts logic access sign or the physics polymerization sign/logic polymerization sign that sign/subscriber equipment adheres to.
Also comprise one of following in the described multicast polymerization Resource Block descriptor or combination in any: reserved resource direction, reservation types and transport service type.
Described diameter multicast polymerization resource bandwidth is adjusted Indication message and comprised: diameter multicast polymerization resource bandwidth reduction Indication message and diameter multicast polymerization resource bandwidth increase Indication message.
The value of the bandwidth parameter in the described diameter multicast polymerization resource bandwidth reduction Indication message is: be the value of the multicast polymerization resource bandwidth of tie-in line appointment, deducted the value of the resource bandwidth of this reduction;
The value that described diameter multicast polymerization resource bandwidth increases the bandwidth parameter in the Indication message is: be the value of the multicast polymerization resource bandwidth of tie-in line appointment, added the value of the resource bandwidth of this multicast service application.
The method and system of a kind of managing multicast resource provided by the present invention, when needs carry out the adjustment of multicast polymerization resource bandwidth, top layer X-RACF sends diameter multicast polymerization resource bandwidth to bottom X-RACF and adjusts Indication message, comprises multicast polymerization Resource Block descriptor in this Indication message; Bottom X-RACF carries out the adjustment of the multicast resource bandwidth that tie-in line is assigned according to the multicast polymerization Resource Block descriptor in the diameter multicast polymerization resource bandwidth adjustment Indication message.By the present invention, realized that the diameter agreement of Rr interface is admitted the support of controlling to the multicast resource of transferring.
Description of drawings
Fig. 1 is the network architecture schematic diagram of RACS in the prior art;
Fig. 2 is the flow chart of multicast resource bandwidth on the top layer X-RACF request reduction access line among the present invention;
Fig. 3 for the present invention when the user asks multicast service, BTF increases the flow chart of assigning the multicast resource bandwidth to top layer X-RACF request.
Embodiment
The technical solution of the present invention is further elaborated below in conjunction with the drawings and specific embodiments.
Realize that by the diameter protocol interaction of Rr interface definition the multicast resource of transferring admits in the scene of control for solving a plurality of resource accommodating control function entities, current agreement can't be supported the problem of the descriptor transmission of multicast resource, the present invention expands by the diameter agreement to the Rr interface, introduce concrete multicast resource descriptor therein, and elaborated the use of information in each scene of these introducings, thereby the diameter agreement that has realized the Rr interface is admitted the support of controlling to the multicast resource of transferring.
Following table 3 multicast parameters for expanding the diameter agreement of Rr interface, this multicast parameters is used to describe the reserved resource piece that is applied to multicast service of Rr interface transmission, and is specific as follows:
| Parameter | Parametric description |
| Reserved resource direction (optional) | Be used to indicate the direction of the reserved resource piece of this appointment |
| Physics inserts sign (optional) | The tie-in line physical label |
| Logic inserts sign (optional) | The tie-in line logical identifier |
| Physics polymerization sign (optional) | The aggregate resources physical label |
| Logic polymerization sign (optional) | The aggregate resources logical identifier |
| Bandwidth (bandwidth) | The bandwidth descriptor |
| Reservation types (optional) | The traffic characteristic message identification |
| Transport service type (optional) | The forwarding behavior of identifying resource |
Table 3
Diameter protocol extension based on above-mentioned Rr interface, the method of a kind of managing multicast resource that the present invention realized, its core concept is: when needs carry out the adjustment of multicast polymerization resource bandwidth, top layer X-RACF sends diameter multicast polymerization resource bandwidth to bottom X-RACF and adjusts Indication message, comprises multicast polymerization Resource Block descriptor in this Indication message; Bottom X-RACF carries out the adjustment of the multicast resource bandwidth that tie-in line is assigned according to the multicast polymerization Resource Block descriptor in the diameter multicast polymerization resource bandwidth adjustment Indication message.
Wherein, the parameter that is comprised in the multicast polymerization Resource Block descriptor is as shown in above-mentioned table 3, and the bandwidth parameter is a mandatory parameter; Other parameters insert sign, logic as: reserved resource direction, physics, and to insert sign, physics polymerization sign, logic polymerization sign, reservation types and transport service type be optional parameters.Promptly, multicast polymerization Resource Block descriptor also need comprise except comprising the bandwidth parameter: the physics that subscriber equipment connects inserts logic access sign or the sign (also claim logic polymerization sign) of physical resource sign (also claiming physics polymerization sign)/logical resource in aggregation networks in aggregation networks that sign/subscriber equipment adheres to.For example: comprise bandwidth parameter, physics access sign and logic in the multicast polymerization Resource Block descriptor and insert sign; Perhaps comprise bandwidth parameter, physics polymerization sign and logic polymerization sign.Other as: reserved resource direction, reservation types and transport service type then both can comprise, and also can not comprise.
The adjustment of the so-called multicast resource bandwidth of the present invention, comprise: the reduction of multicast resource bandwidth and increase by two kinds, so corresponding, diameter multicast polymerization resource bandwidth is adjusted Indication message and also comprised: diameter multicast polymerization resource bandwidth reduction Indication message and diameter multicast polymerization resource bandwidth increase Indication message.
Respectively the embodiment of multicast resource bandwidth reducing and increase is elaborated below.
Fig. 2 shows the flow process of top layer X-RACF request reduction tie-in line multicast polymerization resource bandwidth, and this flow process mainly may further comprise the steps:
Step 201, top layer X-RACF sends diameter multicast polymerization resource bandwidth reduction request to the bottom X-RACF of access node, being also referred to as diameter multicast polymerization resource bandwidth reduction Indication message, is the polymerization resource bandwidth that multicast service is assigned with the request reduction at tie-in line.
Comprise complete reserved block in this diameter multicast polymerization resource bandwidth reduction request and describe (BulkReservation Description) attribute, also be multicast polymerization Resource Block descriptor, the parametric description that Bulk ReservationDescription attribute is comprised sees above-mentioned table 3 for details.Wherein, the bandwidth parameter is designated as total multicast polymerization resource bandwidth that active user's tie-in line is assigned, and promptly deducts the resource bandwidth that this need reduce for the multicast polymerization resource bandwidth that access line is assigned early stage.
Step 202, bottom X-RACF reconfigures the multicast resource bandwidth of appointment according to the multicast polymerization Resource Block descriptor in the diameter multicast polymerization resource bandwidth reduction request at tie-in line.
Step 203, bottom X-RACF returns to top layer X-RACF and comprises the diameter response message of assigning the result.
Fig. 3 shows when the user asks multicast service, and access node increases the flow process of assigning the multicast resource bandwidth to top layer X-RACF request, and this flow process mainly may further comprise the steps:
Step 301, subscriber equipment (UE, User Equipment) join request by Internet igmpinternet (IGMP, Internet Group Management Protocol) and wait multicast message to access node request adding multicast service.
Step 302, the BTF that is positioned at access node handles the multicast message that joins request, if UE request channel is still unavailable at access node, then this BTF sends to the bottom X-RACF that is positioned at access node and admits control request, with the admittance control of request channel.
Step 303, bottom X-RACF carries out resource and admission control, increase the multicast service resource bandwidth if desired, then bottom X-RACF sends diameter multicast polymerization resource bandwidth to top layer X-RACF increases request, be also referred to as diameter multicast polymerization resource bandwidth reduction Indication message, increase the multicast resource of assigning with request.
Comprise complete Bulk ReservationDescription attribute in this diameter multicast polymerization resource bandwidth increase request, also be multicast polymerization Resource Block descriptor, the parametric description that Bulk Reservation Description attribute is comprised sees above-mentioned table 3 for details.Wherein, the bandwidth parameter is designated as total multicast polymerization resource bandwidth that active user's tie-in line is assigned, and promptly the multicast polymerization resource bandwidth of having assigned for access line early stage adds the resource bandwidth of this multicast service application.
Step 304, top layer X-RACF returns diameter multicast polymerization resource bandwidth to bottom X-RACF increases response, and authorizes the increase of multicast polymerization resource bandwidth.
Comprise complete Bulk ReservationDescription attribute in this diameter multicast polymerization resource bandwidth increase response, also be multicast polymerization Resource Block descriptor, the parametric description that Bulk Reservation Description attribute is comprised sees above-mentioned table 3 for details.Wherein, the bandwidth parameter is designated as total multicast polymerization resource bandwidth that active user's tie-in line is assigned, and promptly current top layer X-RACF is the multicast resource bandwidth of the actual appointment of access line.
Step 305, bottom X-RACF increases the multicast resource bandwidth of assigning according to the multicast polymerization Resource Block descriptor in the diameter multicast polymerization resource bandwidth increase response.
Step 306, bottom X-RACF returns admittance control response to BTF.
Step 307, BTF returns multicast to UE and adds response message.
For realizing the method for above-mentioned management multicast resource, the system of a kind of managing multicast resource provided by the present invention comprises top layer X-RACF and bottom X-RACF.Top layer X-RACF is used for sending diameter multicast polymerization resource bandwidth to bottom X-RACF and adjusts Indication message, comprises multicast polymerization Resource Block descriptor in this Indication message.Bottom X-RACF is used for the multicast polymerization Resource Block descriptor according to diameter multicast polymerization resource bandwidth adjustment Indication message, carries out the adjustment of the multicast resource bandwidth that tie-in line is assigned.
Wherein, comprise the bandwidth parameter in the multicast polymerization Resource Block descriptor, can also comprise reserved resource direction, physics and insert sign, logic and insert at least a in sign, physics polymerization sign, logic polymerization sign, reservation types and the transport service type.
Diameter multicast polymerization resource bandwidth is adjusted Indication message and comprised: diameter multicast polymerization resource bandwidth reduction Indication message and diameter multicast polymerization resource bandwidth increase Indication message.The value of the bandwidth parameter in the diameter multicast polymerization resource bandwidth reduction Indication message is: be the value of the multicast polymerization resource bandwidth of tie-in line appointment early stage, deducts the value of this resource bandwidth that need reduce; The value that diameter multicast polymerization resource bandwidth increases the bandwidth parameter in the Indication message is: be the value of the multicast polymerization resource bandwidth of tie-in line appointment early stage, adds the value of the resource bandwidth of this multicast service application.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (10)
1. the method for a managing multicast resource is characterized in that, this method comprises:
Top layer generic resource accommodating control function entity (X-RACF) sends diameter multicast polymerization resource bandwidth to bottom X-RACF and adjusts Indication message, comprises multicast polymerization Resource Block descriptor in the described Indication message;
Described bottom X-RACF carries out the adjustment of the multicast resource bandwidth that tie-in line is assigned according to the multicast polymerization Resource Block descriptor in the described diameter multicast polymerization resource bandwidth adjustment Indication message.
2. according to the method for the described managing multicast resource of claim 1, it is characterized in that, comprise bandwidth (bandwidth) parameter in the described multicast polymerization Resource Block descriptor, and the physics that subscriber equipment connects inserts logic access sign or the physics polymerization sign/logic polymerization sign that sign/subscriber equipment adheres to;
Accordingly, the described adjustment of carrying out the multicast resource bandwidth that tie-in line is assigned according to multicast polymerization Resource Block descriptor, be specially:, adjust the multicast resource bandwidth that tie-in line is assigned according to the indication of bandwidth parameter in the described multicast polymerization Resource Block descriptor.
3. according to the method for the described managing multicast resource of claim 1, it is characterized in that, also comprise one of following in the described multicast polymerization Resource Block descriptor or combination in any: reserved resource direction, reservation types and transport service type.
4. according to the method for claim 1 or 2 or 3 described managing multicast resources, it is characterized in that described diameter multicast polymerization resource bandwidth is adjusted Indication message and comprised: diameter multicast polymerization resource bandwidth reduction Indication message and diameter multicast polymerization resource bandwidth increase Indication message.
5. according to the method for the described managing multicast resource of claim 4, it is characterized in that, the value of the bandwidth parameter in the described diameter multicast polymerization resource bandwidth reduction Indication message is: be the value of the multicast polymerization resource bandwidth of tie-in line appointment, deducted the value of the resource bandwidth of this reduction;
The value that described diameter multicast polymerization resource bandwidth increases the bandwidth parameter in the Indication message is: be the value of the multicast polymerization resource bandwidth of tie-in line appointment, added the value of the resource bandwidth of this multicast service application.
6. the system of a managing multicast resource is characterized in that, this system comprises: top layer X-RACF and bottom X-RACF, wherein,
Described top layer X-RACF is used for sending diameter multicast polymerization resource bandwidth to described bottom X-RACF and adjusts Indication message, comprises multicast polymerization Resource Block descriptor in the described Indication message;
Described bottom X-RACF is used for the multicast polymerization Resource Block descriptor according to diameter multicast polymerization resource bandwidth adjustment Indication message, carries out the adjustment of the multicast resource bandwidth that tie-in line is assigned.
7. according to the system of the described managing multicast resource of claim 6, it is characterized in that the physics that comprises the connection of bandwidth parameter and subscriber equipment in the described multicast polymerization Resource Block descriptor inserts logic access sign or the physics polymerization sign/logic polymerization sign that sign/subscriber equipment adheres to.
8. according to the system of the described managing multicast resource of claim 6, it is characterized in that, also comprise one of following in the described multicast polymerization Resource Block descriptor or combination in any: reserved resource direction, reservation types and transport service type.
9. according to the system of claim 7 or 8 or 9 described managing multicast resources, it is characterized in that described diameter multicast polymerization resource bandwidth is adjusted Indication message and comprised: diameter multicast polymerization resource bandwidth reduction Indication message and diameter multicast polymerization resource bandwidth increase Indication message.
10. according to the system of the described managing multicast resource of claim 9, it is characterized in that, the value of the bandwidth parameter in the described diameter multicast polymerization resource bandwidth reduction Indication message is: be the value of the multicast polymerization resource bandwidth of tie-in line appointment, deducted the value of the resource bandwidth of this reduction;
The value that described diameter multicast polymerization resource bandwidth increases the bandwidth parameter in the Indication message is: be the value of the multicast polymerization resource bandwidth of tie-in line appointment, added the value of the resource bandwidth of this multicast service application.
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| WO2012149805A1 (en) * | 2011-10-14 | 2012-11-08 | 华为技术有限公司 | Method and system for improving multicast receiving gain |
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Application publication date: 20110615 |