CN101577932B

CN101577932B - Method and system for realizing transmission service in network of next generation

Info

Publication number: CN101577932B
Application number: CN2008101906075A
Authority: CN
Inventors: 董继雄
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2008-01-18
Filing date: 2008-01-18
Publication date: 2011-06-08
Anticipated expiration: 2028-01-18
Also published as: CN101577932A

Abstract

The invention discloses a method for realizing transmission service in a network of next generation. The method comprises the following steps that: PCE/GMPLS is brought into a NGN network controlled by RACF to realize management and control of the RACF on the transmission network; a transmission resource control functional entity TRC-FE of the NGN network controlled by the RACF and the PCE are cooperated to work to concentratively manage and control service of the transmission network, and indicate operator equipment to establish a label exchange path for the service of the transmission network; and after the label exchange path is established, the service is managed, controlled and transmitted. By adopting the method, the system has the advantages of constructing the transmission network with high availability and unifying the service operation system in the NGN network.

Description

The implementation method of transport service and system in next generation network

Technical field

The present invention relates to communication technical field, relate in particular to a kind of implementation method and system at the middle transport service of next generation network (NGN, NextGeneration Network).

Background technology

(the ITU-T of International Telecommunications Union, International Telecommunication Union-Telecommunication Standards Sector) (the NGN FG of next generation network seminar, GenerationNetwork Focus Group) released the NGN framework, the NGN framework is divided into two-layer: operation layer (servicestratum) and transport layer (transport stratum).Operation layer mainly is the process user service request and sends it to transport layer and handle, and transport layer mainly is that the service request that operation layer sends over is carried out access control, Path selection and configuration and flow transmits.Wherein, access control and Path selection and configuration mainly are to be finished by resource and controlled function entity (RACF, Resource and Admission Control Function).And the flow transmission is finished by transmitting network element.Transmitting network element comprises access device, inserts transfer equipment, equipment of the core network, core net transfer equipment.The functional mode of RACF as shown in Figure 1.Mainly carry out IP-based speech business (VOIP on the Access Network, Voice over IP), video traffic (VOD, Video onDemand), bandwidth on-demand business (BOD as required, Bandwidth on Demand), IP-based television services (IPTV, IP-based TeleVision) business.NGN network as referred to herein is the NGN network on a kind of more broad sense, and it comprises the network that the RACF with ITU-T definition controls, and also comprises the network that the RACS with the TISPAN definition controls.

Transmission net as referred to herein is the transmission net on the narrow justice, be included in the transport layer (transportstratum) of NGN, mainly be meant and adopt SDH (Synchronous Digital Hierarchy) (SDH, Synchronous Digital Hierarchy), wavelength division multiplexing (WDM, Wavelength Division Multiplexing), optical transfer network (OTN, OpticalTransport Network), provider backbone bridging-traffic engineering (PBB-TE, Provider BackboneBridge), multi protocol label exchange path transmits net (T-MPLS, Transport-Multi-Protocol LabelSwitch) network equipment of technology such as, the business that transmission can be carried out on the net mainly is 1 layer of virtual private networks (L1VPN towards the big customer, Layer 1 Virtual Private Network), 2 layers of virtual private networks (L2VPN, Layer 2 Virtual Private Network), business such as BOD, but not the terminaloriented personal user's that Access Network is carried out business (such as VOIP etc.).

Existing NGN system will be what to support the control that transmits net and management from framework, but existing NGN system protocol and interface are but very limited to the support that transmits network, particularly be not supported in universal multi protocol label exchange path (GMPLS, Generalized Multi-Protocol Label Switch), the transmission network under path-calculating element (PCE, the Path Computation Element) control.

The inventor is in creation process of the present invention, and there are the following problems with management aspect to find the NGN agreement that defines at present to transmit network service control in support:

Existing NGN agreement is only supported MPLS LSP, part is supported Ethernet, do not support the SDH path to connect, do not support the PBB-TE/PBT path to connect yet, realize in resource and the accommodation control subsystem (RACS, Resource andAdmission Control Subsystem) that also there is same problem in transport service.

Summary of the invention

The embodiment of the invention provide a kind of in the NGN network implementation method and the system of transport service, include the function that transmits net in the NGN network, in the NGN network, make up the transmission net of high availability, unified business operation system.

The implementation method of transport service in the NGN network of RACF control that the embodiment of the invention provides comprises:

In the NGN network of RACF control, include PCE/GMPLS in, to realize that RACF is to transmitting Network Management and control;

Transmission resource control function entity TRC-FE and the described PCE/GMPLS collaborative work of the NGN network of RACF control, to transmitting management and the control that network service is concentrated, and indication operator equipment is set up label switched path for the transmission network service;

After described label switched path was set up, management control also transmitted described business.

The embodiment of the invention also provide a kind of in the NGN network of RACS control the implementation method of transport service, comprising:

In the NGN network of RACS control, include PCE/GMPLS in, to realize that RACS is to transmitting Network Management and control;

Access-in resource and accommodating control function Access-Resource and Admission Control Function and the described PCE/GMPLS collaborative work of the NGN network of RACS control, to transmitting management and the control that network service is concentrated, and indication operator equipment is set up label switched path for the transmission network service;

Correspondingly, the embodiment of the invention also provide a kind of in the NGN network of RACF control the realization system of transport service, describedly in the NGN network of RACF control, included PCE/GMPLS in, comprising:

Transmit resource control function entity TRC-FE, be used for and described PCE/GMPLS collaborative work, to transmitting management and the control that network service is concentrated, and set up the label switched path that transmits network service;

Policy deciding functional entity PD-FE is used for after described label switched path is set up, and management control also transmits described business;

Path-calculating element PCE is used to described transmission network service to set up the label switched path calculating path, and routing information is provided;

GMPLS module GMPLS is used for and described TRC-FE and PCE collaborative work, described transmission network service is managed and controls, and set up label switched path for it.

The embodiment of the invention also provide a kind of in the NGN network of RACS control the realization system of transport service, describedly in the NGN network of RACS control, included PCE/GMPLS in, comprising:

Access-in resource and accommodating control function Access-Resource and Admission Control Function are used for and described PCE/GMPLS collaborative work, to transmitting management and the control that network service is concentrated, and set up the label switched path that transmits network service; After described label switched path was set up, management control also transmitted described business;

Path-calculating element PCE is used to management and controls described transmission network service, and set up the label switched path calculating path for described transmission network service, and routing information is provided;

General multiple protocols label Switching Module GMPLS is used for and described Access-Resource and Admission Control Function and PCE collaborative work, described transmission network service is managed and controls, and set up label switched path for it.

Implement embodiments of the invention, having following beneficial effect:

In the NGN network, include the PCE/GMPLS that transmits net in, the resource control function entity collaborative work in described PCE/GMPLS and the NGN network, management and control that the transmission network service is concentrated, and set up label switched path and transmit described business; In the NGN network, make up the transmission net of high availability, unified business operation system.

Description of drawings

Fig. 1 is the schematic diagram of existing NGN structure;

Fig. 2 is the schematic flow sheet of implementation method first embodiment of transport service in the NGN network of RACF control that the embodiment of the invention provides;

Fig. 3 is the schematic flow sheet of implementation method second embodiment of transport service in the NGN network of RACF control that the embodiment of the invention provides;

Fig. 4 is the schematic flow sheet of implementation method the 3rd embodiment of transport service in the NGN network of RACF control that the embodiment of the invention provides;

Fig. 5 is the composition schematic diagram of the realization system of transport service in the NGN network of RACF control that the embodiment of the invention provides;

Fig. 6 is the schematic flow sheet of implementation method first embodiment of transport service in the NGN network of RACS control that the embodiment of the invention provides;

Fig. 7 is the schematic flow sheet of implementation method second embodiment of transport service in the NGN network of RACS control that the embodiment of the invention provides;

Fig. 8 is the schematic flow sheet of implementation method the 3rd embodiment of transport service in the NGN network of RACS control that the embodiment of the invention provides;

Fig. 9 is the composition schematic diagram of the realization system of transport service in the NGN network of RACS control that the embodiment of the invention provides.

Embodiment

Referring to Fig. 2, be the schematic flow sheet of implementation method first embodiment of transport service in the NGN network of RACF control that the embodiment of the invention provides.

In step 100, in the NGN network of RACF control, include PCE/GMPLS in, to realize that RACF is to transmitting Network Management and control;

In step 101, transmit resource control function entity (TRC-FE, Transport Resource ControlFunction Entity) reception is from the request for transmission network service Resources allocation of policy deciding functional entity (PD-FE, Policy Decision FunctionEntity);

In step 102, TRC-FE analyze described transmission network service the label switched path between the provider edge equipment of process whether set up;

In step 103,, judge then whether it satisfies the resource requirement that transmits network service if label switched path is set up;

In step 104, not have under the situation of foundation at resource requirement that satisfy not to transmit network service or label switched path, TRC-FE initiates path computing request to PCE, is passed through label switched path between the provider edge equipment to select described transmission network service;

In step 105, TRC-FE receives the path computing result from PCE, obtains routing information;

Need to prove that the routing information here can be whole routing information, also can be the routing information of part;

In step 106,, obtain corresponding resource information according to the transmission net type of described TRC-FE management;

In step 107, TRC-FE initiates order to set up label switched path to operator's equipment, perhaps initiate order to set up label switched path to operator's equipment by PD-FE, carry resource information in the described order, include: parameters such as task identifier, source provider edge equipment, purpose provider edge equipment and/or routing information, label, network QOS parameter, protection relation, priority;

Need to prove in this step, whether carry routing information in the described order, need whether return whole routing informations according to PCE in the step 105 and decide to TRC-FE;

If in step 105, after PCE calculates the path, just whole routing informations is returned to TRC-FE, then in the step 107, TRC-FE is carried at routing information in the described order, directly sends to operator's equipment, perhaps sends to operator's equipment by PD-FE; Concrete handling process is: TRC-FE initiates path computing request (containing task identifier) to PCE after having received the resource request of PD-FE, after PCE calculates and finishes, return whole routing informations, after TRC-FE has received routing information, directly initiate the path and set up order to operator's equipment, perhaps initiate the path to operator's equipment and set up order, in this order, comprise described routing information by PD-FE;

If in step 105, after PCE calculates the path, just, promptly whether there is active path to return to TRC-FE with the routing information of part, then in the step 107, TRC-FE does not carry routing information in described order; Concrete handling process is: TRC-FE initiates path computing request (containing task identifier) to PCE after having received the resource request of PD-FE, after PCE calculates and finishes, do not return whole routing informations, but tell whether TRC-FE has available path, after TRC-FE has received sure information, directly initiate the path and set up order, perhaps initiate the path to operator's equipment and set up order, in this order, do not comprise routing information by PD-FE to operator's equipment.After operator's equipment is received this order, initiate path computing request to PCE, PCE returns detailed path information according to task identifier again.

In step 108, the source provider edge equipment receives after described label switched path sets up order, initiates to set up label switched path signaling between the provider edge equipment to the purpose provider edge equipment;

In step 109,, set up the label switched path between source provider edge equipment and the purpose provider edge equipment according to resource information of carrying in the described order and routing information;

In step 110, after described label switched path was set up, management control also transmitted described transmission network service.

Referring to Fig. 3, be the schematic flow sheet of implementation method second embodiment of transport service in the NGN network of RACF control that the embodiment of the invention provides.

In step 200, in the NGN network of RACF control, include the PCE/GMPLS that transmits net in, with the NGN network of realizing RACF control to transmitting Network Management and control;

In step 201, TRC-FE receives the request for transmission network service Resources allocation from PD-FE;

In step 202, TRC-FE analyze described transmission network service the label switched path between the provider edge equipment of process whether set up;

In step 203,, judge then whether it satisfies the resource requirement that transmits network service if label switched path is set up;

In step 204, not have under the situation of foundation at resource requirement that satisfy not to transmit network service or label switched path, TRC-FE initiates path computing request to PCE, is passed through label switched path between the provider edge equipment to select described transmission network service;

In step 205, TRC-FE receives the path computing result from PCE, obtains routing information; Need to prove that the routing information here can be whole routing information, also can be the routing information of part;

In step 206,, obtain corresponding resource information according to the transmission net type of described TRC-FE management;

In step 207, TRC-FE initiates order to set up label switched path to provider edge equipment, perhaps initiate the path to operator's equipment and set up order by PD-FE, carry resource information in the described order, include: parameters such as task identifier, source provider edge equipment, purpose provider edge equipment and/or routing information, label, network QOS parameter, protection relation, priority;

Need to prove in this step, whether carry routing information in the described order, need whether return whole routing informations according to PCE in the step 205 and decide to TRC-FE;

If in step 205, after PCE calculates the path, just whole routing informations is returned to TRC-FE, then in the step 207, TRC-FE is carried at routing information in the described order, directly sends to operator's equipment, perhaps sends to operator's equipment by PD-FE; Concrete handling process is: TRC-FE initiates path computing request (containing task identifier) to PCE after having received the resource request of PD-FE, after PCE calculates and finishes, return whole routing informations, after TRC-FE has received routing information, directly initiate the path and set up order to operator's equipment, perhaps initiate the path to operator's equipment and set up order, in this order, comprise described routing information by PD-FE;

If in step 205, after PCE calculates the path, just, promptly whether there is active path to return to TRC-FE with the routing information of part, then in the step 207, TRC-FE does not carry routing information in described order; Concrete handling process is: TRC-FE initiates path computing request (containing task identifier) to PCE after having received the resource request of PD-FE, after PCE calculates and finishes, do not return whole routing informations, but tell whether TRC-FE has available path, after TRC-FE has received sure information, initiate the path to operator's equipment and set up order, perhaps initiate the path to operator's equipment and set up order, in this order, do not comprise routing information by PD-FE.After operator's equipment is received this order, initiate path computing request to PCE, PCE returns detailed path information according to task identifier again.In step 208, the source provider edge equipment receives after described label switched path sets up order, initiates to set up label switched path signaling between the provider edge equipment to the purpose provider edge equipment;

In step 209,, set up the label switched path between source provider edge equipment and the purpose provider edge equipment according to resource information of carrying in the described order and routing information;

In step 210, TRC-FE directly sends the order set up branch road/pseudo-line passage to provider edge equipment, but perhaps TRC-FE to PD-FE feedback resources acquired information, again by PD-FE issue set up branch road/pseudo-line passage order to provider edge equipment;

In step 211, provider edge equipment is bound the pairing branch road of task identifier/pseudo-line passage and the pairing label switched path of this task identifier, to realize management and the control of PD-FE to business.

Referring to Fig. 4, be the schematic flow sheet of implementation method the 3rd embodiment of transport service in the NGN network of RACF control that the embodiment of the invention provides.

In step 300, in the NGN network of RACF control, include the PCE/GMPLS that transmits net in, with the NGN network of realizing RACF control to transmitting Network Management and control;

In step 301, TRC-FE receives the request for transmission network service Resources allocation from PD-FE;

In step 302, TRC-FE analyze described NGN business the label switched path between the provider edge equipment of process whether set up;

In step 303,, judge then whether it satisfies the resource requirement that transmits network service if label switched path is set up;

In step 304, not have under the situation of foundation at resource requirement that satisfy not to transmit network service or label switched path, TRC-FE initiates path computing request to PCE, is passed through label switched path between the provider edge equipment to select described transmission network service;

In step 305, TRC-FE receives the path computing result from PCE, obtains routing information; Need to prove that the routing information here can be whole routing information, also can be the routing information of part;

In step 306,, obtain corresponding resource information according to the transmission net type of described TRC-FE management;

In step 307, TRC-FE is directly to provider edge equipment, perhaps initiate order to set up label switched path to provider edge equipment by PD-FE, carry resource information in the described order, include: parameters such as task identifier, source provider edge equipment, purpose provider edge equipment and/or routing information, label, network QOS parameter, protection relation, priority;

Need to prove in this step, whether carry routing information in the described order, need whether return whole routing informations according to PCE in the step 305 and decide to TRC-FE;

If in step 305, after PCE calculates the path, just whole routing informations is returned to TRC-FE, then in the step 307, TRC-FE is carried at routing information in the described order, directly send to operator's equipment, perhaps by PD-FE described order being sent to the concrete handling process of operator's equipment is: TRC-FE initiates path computing request (containing task identifier) to PCE after having received the resource request of PD-FE, after PCE calculates and finishes, return whole routing informations, after TRC-FE has received routing information, directly initiate the path and set up order to operator's equipment, perhaps initiate the path to operator's equipment and set up order, in this order, comprise described routing information by PD-FE;

If in step 305, after PCE calculates the path, just, promptly whether there is active path to return to TRC-FE with the routing information of part, then in the step 307, TRC-FE does not carry routing information in described order; Concrete handling process is: TRC-FE initiates path computing request (containing task identifier) to PCE after having received the resource request of PD-FE, after PCE calculates and finishes, do not return whole routing informations, but tell whether TRC-FE has available path, after TRC-FE has received sure information, directly initiate the path and set up order, perhaps initiate the path to operator's equipment and set up order, in this order, do not comprise routing information by PD-FE to operator.After operator's equipment is received this order, initiate path computing request to PCE, PCE returns detailed path information according to task identifier again.

In step 308, judge the equipment on the path of process whether all whether support generalized multiprotocol label switching (GMPLS) protocol, if change step 309 over to; If not, then change step 310 over to;

In step 309, TRC-FE directly initiates label switched path foundation order to provider edge equipment or by PD-FE to operator's equipment; After this flow process is identical with second embodiment with first embodiment, in this no longer repeat specification;

In step 310, TRC-FE directly or by PD-FE to label switched path all operator's intermediate equipments of process and edge device issue label switched path and set up order; Carry resource information in the described order;

In step 311, after described operator intermediate equipment receives described order, according to its resource information configuration node label swap table that carries; After described provider edge equipment receives described order, set up pseudo-line, configuration virtual connections group is with the stream filter table and with both bindings;

In step 312, according to described node label swap table and routing information, for described transmission network service is set up label switched path;

In step 313, after described label switched path is set up, but TRC-FE to PD-FE feedback resources acquired information, PD-FE management control also transmits described transmission network service.

Referring to Fig. 5, be the composition schematic diagram of the realization system of transport service in the NGN network of RACF control that the embodiment of the invention provides.

Under the NGN framework of RACF control, manage and control as follows to transmitting Network:

1, user CE1 initiates service request, and mode can be by PORTAL, SIP signaling etc.; Operation controlling entity SCF admits this business according to local user's subscription data and analysis of strategies after receiving this request;

If 2 operation controlling entity are admitted this business, then to end subscriber is initiated service request.End subscriber CE2 is received that this request back judges whether to admit this business according to local information and strategy;

3, end subscriber CE2 is responded service request;

If 4 admit this business to end subscriber CE2, then operation controlling entity is initiated service request to PD-FE;

5, after PD-FE receives service request, initiate resource request to TRC-FE.After TRC-FE receives resource request, analyze this business the TUNNELLSP between the provider edge equipment (PE, Provider Edge) of process whether set up.If set up, then judge whether to satisfy resource requirement;

If the TUNNEL LSP between 6 PE does not satisfy or do not set up TUNNEL LSP, then TRC-FE initiates path computing request to PCE, with the path of TUNNEL LSP between the PE that selects professional process.If according to tactful needs service protection, then need between two PE, calculate two paths, be respectively operating path and protection path.PCE feeds back to TRC-FE with result of calculation subsequently;

If 7 management is the PBB-TE/PBT network, the business of setting up before then TRC-FE also will need is determined B-VLAN and the B-MAC that TUNNEL is connected with strategy.If what signaling needed is the IP address, the routing information that TRC-FE also will calculate PCE changes into the IP address information.If suitable path is arranged, then TRC-FE initiates the foundation order of TUNNEL LSP to PE, and the parameter that order is carried is: information such as task identifier, source PE node, purpose PE node, explicit route information, B-VLAN+B-MAC label, network QOS parameter, protection relation, priority; Initiate branch road/PW passage respectively to two PE then and set up order, the parameter that order is carried is task identifier, target P E address, network QOS parameter, priority, protection relation etc.There is not the GMPLS control protocol if transmit network element, then also need to the path in the middle of all of process P nodes initiate TUNNEL and connect and set up order, command parameter is: target P node address, inbound port number, go into label, outbound port number, outgoing label, network QOS parameter etc., the label here is the label of broad sense, in the T-MPLS layer network, be the LSP label; In the SDH network, be VC12/VC3/VC4 time slot label; In the light crossover network, be the wavelength label; In the PBB-TE/PBT network, be the VLAN+MAC label.

8, after the GMPLS control module of PE is received the foundation order of TUNNEL LSP, initiate to set up the signaling of the TUNNEL LSP between PE, thereby set up the TUNNEL LSP of PE-PE; After receiving that branch road/PW passage is set up order, set up PW, configuration VCG and Business Stream and with both bindings; After the P node receives that TUNNEL connects the foundation order, according to command parameter configuration node label swap table.

9, TUNNEL LSP sets up;

10, TRC-FE carries out the resource request response according to existing resource situation or newly-built resource results to PD-FE;

11, after PD-FE receives resource request response,,, issue that gate is opened simultaneously according to the content of service request according to parameters such as local policy decision network QOSs, shutdown command and QOS parameter, task identifier etc.;

12, after the PE node is received the gate order,, then the pairing branch road of this task identifier/PW passage and the pairing TUNNEL LSP of this task identifier are bound if gate is opened;

13, PD-FE responds service request;

14, operation controlling entity responds the service request of user CE1;

If 15 user CE1 service request are admitted, then user traffic just can transmit on the transmission resource; So-called Business Stream is that the User IP stream that is different from below original NGN (is identified by five-tuple: source address, source port number, destination address, destination slogan, protocol number), the stream here is the transparent transmission stream of customer flow, such as port flow, and port+VLAN stream etc.The service traffics data that like this, just do not need perception user reality.

So-called TUNNEL LSP can be the connections such as VC12/VC3/VC4 between the line interface of PE, also can be that B-VLAN+D-MAC connects, and also can be T-MPLS LSP.

So-called circuit connects to circuit, it can be VC4/VC3/VC12 interconnection (SDH) between thing both direction glazing line interface base on the P node, also can be the label exchange connection (as the VLAN+MAC exchange, perhaps T-MPLSTUNNEL label exchange) on the P node, also can be the wavelength exchange.So-called branch road/PW, may be PDH tributary interface (as the some or a plurality of 2M interfaces on SDH/MSTP equipment), also may be interfaces such as ATM/ETH and its encapsulation is mapped among the VCG, or some AC interfaces and being mapped among the PW (define in IETF PWE3 working group), and this PW can be carried on T-MPLSTUNNEL or the PBT/PBB-TE TUNNEL.

The binding of so-called branch road/PW and TUNNEL LSP, be meant the PDH tributary interface is cross connected to some VC4/VC3/VC12 on the circuit, perhaps the VCG at interface places such as ATM/ETH being entwined is connected to some VC4/VC3/VC12 on the circuit, perhaps PW such as ATM/ETH/PDH/FR is mapped on certain TUNNEL LSP.

In the entire process process, in the interface protocol of each functional entity, all need to carry this parameter of task identifier, task identifier is distributed by SCF.After PE receives the gate order, the PW/ bypass passage and the TUNNEL LSP of this task identifier correspondence associated.TUNNEL LSP may corresponding a plurality of task identifiers, only need that task identifier is identical just can to associate.

In the collection of resource, can adopt the existing interface of PCE to carry out.

The implementation method and the system of transport service in the NGN network of RACF control that the embodiment of the invention provides, by in the NGN network of RACF control, including the PCE/GMPLS functional entity that transmits net in, resource control function entity collaborative work in the NGN network of described PCE/GMPLS functional entity and RACF control, to transmitting management and the control that network service is concentrated, and set up label switched path and transmit described business; In the NGN network of RACF control, make up the transmission net of high availability, unified business operation system.

Need to prove, include the PCE/GMPLS functional entity that transmits net in the NGN of RACS control, the method that is implemented in transport service in the NGN network of RACS control follows the implementation method principle of transport service in the NGN network of RACF control identical.

Referring to Fig. 6, be the schematic flow sheet of implementation method first embodiment of transport service in the NGN network of RACS control that the embodiment of the invention provides.

In step 400, in the NGN network of RACS control, include the PCE/GMPLS that transmits net in, to realize that the RACS network is to transmitting Network Management and control;

In step 401, function (Access-Resource and Admission Control Function is carried out in access-in resource in the NGN network of RACS control and admittance control, Access-Resource and Admission Control Function) receives from being the request of RACS traffic assignments resource based on the policy deciding functional entity (SPDF, Service-based Policy Decision Function) of business;

In step 402, Access-Resource and Admission Control Function analyze described transmission network service the label switched path between the provider edge equipment of process whether set up;

In step 403,, judge then whether it satisfies the resource requirement that transmits network service if label switched path is set up;

In step 404, not have under the situation of foundation at resource requirement that satisfy not to transmit network service or label switched path, Access-Resource and Admission Control Function is initiated path computing request to PCE, is passed through label switched path between the provider edge equipment to select described transmission network service;

In step 405, Access-Resource and Admission Control Function receives the path computing result from PCE, obtains routing information; Need to prove that the routing information here can be whole routing information, also can be the routing information of part;

In step 406,, obtain corresponding resource information according to the transmission net type of described Access-Resource and Admission Control Function management;

In step 407, Access-Resource and Admission Control Function is initiated order to set up label switched path to provider edge equipment, perhaps initiate order to set up label switched path to operator's equipment by SPDF, carry resource information in the described order, include: parameters such as task identifier, source provider edge equipment, purpose provider edge equipment and/or routing information, label, network QOS parameter, protection relation, priority;

Need to prove in this step, whether carry routing information in the described order, need whether return whole routing informations according to PCE in the step 405 and decide to Access-Resource and Admission Control Function;

If in step 405, after PCE calculates the path, just whole routing informations is returned to Access-Resource and Admission Control Function, then in the step 407, Access-Resource and Admission Control Function is carried at routing information and sends to operator's equipment in the described order, perhaps send to operator's equipment by SPDF, concrete handling process is: Access-Resource and Admission Control Function is initiated path computing request (containing task identifier) to PCE after having received the resource request of SPDF, after PCE calculates and finishes, return whole routing informations, after Access-Resource and Admission Control Function has been received routing information, directly initiate path foundation order, in this order, comprise described routing information to operator's equipment or by SPDF;

If in step 405, after PCE calculates the path, just, promptly whether there is active path to return to Access-Resource and Admission Control Function with the routing information of part, then in the step 407, Access-Resource and Admission Control Function does not carry routing information in described order; Concrete handling process is: Access-Resource and Admission Control Function is initiated path computing request (containing task identifier) to PCE after having received the resource request of SPDF, after PCE calculates and finishes, do not return whole routing informations, but tell whether Access-Resource and Admission Control Function has available path, after Access-Resource and Admission Control Function has been received sure information, initiate path foundation order to operator's equipment or by SPDF to operator's equipment, in this order, do not comprise routing information.After operator's equipment is received this order, initiate path computing request to PCE, PCE returns detailed path information according to task identifier again.

In step 408, the source provider edge equipment receives after described label switched path sets up order, initiates to set up label switched path signaling between the provider edge equipment to the purpose provider edge equipment;

In step 409,, set up the label switched path between source provider edge equipment and the purpose provider edge equipment according to resource information of carrying in the described order and routing information;

In step 410, after described label switched path was set up, management control also transmitted described transmission network service.

Referring to Fig. 7, be the schematic flow sheet of implementation method second embodiment of transport service in the NGN network of RACS control that the embodiment of the invention provides.

In step 500, in the NGN network of RACS control, include PCE/GMPLS in, to realize that the RACS network is to transmitting Network Management and control;

In step 501, Access-Resource and Admission Control Function receives from being the request of RACS traffic assignments resource based on SPDF;

In step 502, Access-Resource and Admission Control Function analyze described RACS business the label switched path between the provider edge equipment of process whether set up;

In step 503,, judge then whether it satisfies the resource requirement that transmits the RACS business if label switched path is set up;

In step 504, do not have under the situation of foundation at the resource requirement or the label switched path that do not satisfy transmission RACS business, Access-Resource and Admission Control Function is initiated path computing request to PCE, to select the professional label switched path that is passed through between the provider edge equipment of described RACS;

In step 505, Access-Resource and Admission Control Function receives the path computing result from PCE, obtains routing information; Need to prove that the routing information here can be whole routing information, also can be the routing information of part;

In step 506,, obtain corresponding resource information according to the transmission net type of described Access-Resource and Admission Control Function management;

In step 507, Access-Resource and Admission Control Function is directly initiated order to set up label switched path to provider edge equipment, perhaps initiate order to set up label switched path to provider edge equipment by SPDF, carry resource information in the described order, include: parameters such as task identifier, source provider edge equipment, purpose provider edge equipment and/or routing iinformation, label, network QOS parameter, protection relation, priority;

Need to prove in this step, whether carry routing information in the described order, need whether return whole routing informations according to PCE in the step 505 and decide to Access-Resource and Admission Control Function;

If in step 505, after PCE calculates the path, just whole routing informations is returned to Access-Resource and Admission Control Function, then in the step 507, Access-Resource and Admission Control Function is carried at routing information in the described order, directly send to operator's equipment, perhaps described order is sent to operator's equipment by SPDF, concrete handling process is: Access-Resource and Admission Control Function is initiated path computing request (containing task identifier) to PCE after having received the resource request of SPDF, PCE returns whole routing informations, after Access-Resource and Admission Control Function has been received routing information after calculating and finishing, directly initiate path foundation order to operator's equipment, in this order, comprise described routing information to operator's equipment or by SPDF;

If in step 505, after PCE calculates the path, just, promptly whether there is active path to return to Access-Resource and Admission Control Function with the routing information of part, then in the step 507, Access-Resource and Admission Control Function does not carry routing information in described order; Concrete handling process is: Access-Resource and Admission Control Function is initiated path computing request (containing task identifier) to PCE after having received the resource request of SPDF, after PCE calculates and finishes, do not return whole routing informations, but tell whether Access-Resource and Admission Control Function has available path, after Access-Resource and Admission Control Function has been received sure information, directly initiate path foundation order to operator's equipment, in this order, do not comprise routing information to operator's equipment or by SPDF.After operator's equipment is received this order, initiate path computing request to PCE, PCE returns detailed path information according to task identifier again.

In step 508, the source provider edge equipment receives after described label switched path sets up order, initiates to set up label switched path signaling between the provider edge equipment to the purpose provider edge equipment;

In step 509,, set up the label switched path between source provider edge equipment and the purpose provider edge equipment according to resource information of carrying in the described order and routing information;

In step 510, Access-Resource and Admission Control Function directly sends the order set up branch road/pseudo-line passage to provider edge equipment, but perhaps Access-Resource and Admission Control Function to SPDF feedback resources acquired information, again by SPDF issue set up branch road/pseudo-line passage order to provider edge equipment;

In step 511, provider edge equipment is bound the pairing branch road of task identifier/pseudo-line passage and the pairing label switched path of this task identifier, to realize management and the control of SPDF to business.

Referring to Fig. 8, be the schematic flow sheet of implementation method the 3rd embodiment of transport service in the NGN network of RACS control that the embodiment of the invention provides.

In step 600, in the NGN network of RACS control, include PCE/GMPLS in, with the NGN network of realizing RACS control to transmitting Network Management and control;

In step 601, Access-Resource and Admission Control Function receives the request for transmission network service Resources allocation from SPDF;

In step 602, Access-Resource and Admission Control Function analyze described transmission network service the label switched path between the provider edge equipment of process whether set up;

In step 603,, judge then whether it satisfies the resource requirement that transmits network service if label switched path is set up;

In step 604, not have under the situation of foundation at resource requirement that satisfy not to transmit network service or label switched path, Access-Resource and Admission Control Function is initiated path computing request to PCE, is passed through label switched path between the provider edge equipment to select described transmission network service;

In step 605, Access-Resource and Admission Control Function receives the path computing result from PCE, obtains routing information; Need to prove that the routing information here can be whole routing information, also can be the routing information of part;

In step 606,, obtain corresponding resource information according to the transmission net type of described Access-Resource and Admission Control Function management;

In step 607, Access-Resource and Admission Control Function is directly initiated order to set up label switched path to provider edge equipment, perhaps initiate order to set up label switched path to provider edge equipment by PSDF, carry resource information in the described order, include: parameters such as task identifier, source provider edge equipment, purpose provider edge equipment and/or routing information, label, network QOS parameter, protection relation, priority;

Need to prove in this step, whether carry routing information in the described order, need whether return whole routing informations according to PCE in the step 605 and decide to Access-Resource and Admission Control Function;

If in step 605, after PCE calculates the path, just whole routing informations is returned to Access-Resource and Admission Control Function, then in the step 607, Access-Resource and Admission Control Function is carried at routing information in the described order, directly sends to operator's equipment, perhaps will send to operator's equipment in the described order by SPDF; Concrete handling process is: Access-Resource and Admission Control Function is initiated path computing request (containing task identifier) to PCE after having received the resource request of SPDF, after PCE calculates and finishes, return whole routing informations, after Access-Resource and Admission Control Function has been received routing information, directly initiate the path and set up order to operator's equipment, perhaps initiate the path to operator's equipment and set up order, in this order, comprise described routing information by SPDF;

If in step 605, after PCE calculates the path, just, promptly whether there is active path to return to Access-Resource and Admission Control Function with the routing information of part, then in the step 607, Access-Resource and Admission Control Function does not carry routing information in described order; Concrete handling process is: Access-Resource and Admission Control Function is initiated path computing request (containing task identifier) to PCE after having received the resource request of SPDF, after PCE calculates and finishes, do not return whole routing informations, but tell whether Access-Resource and Admission Control Function has available path, after Access-Resource and Admission Control Function has been received sure information, directly initiate the path and set up order, perhaps initiate the path to operator's equipment and set up order, in this order, do not comprise routing information by SPDF to operator's equipment.After operator's equipment is received this order, initiate path computing request to PCE, PCE returns detailed path information according to task identifier again.

In step 608, judge the equipment on the path of process whether all whether support generalized multiprotocol label switching (GMPLS) protocol, if change step 609 over to; If not, then change step 610 over to;

In step 609, Access-Resource and Admission Control Function is perhaps initiated label switched path by SDPF to provider edge equipment and is set up order directly to provider edge equipment; After this flow process is identical with second embodiment with first embodiment, in this no longer repeat specification;

In step 610, Access-Resource and Admission Control Function directly or by SPDF to label switched path all operator's intermediate equipments of process and edge device issue label switched path and set up order; Carry resource information in the described order;

In step 611, after described operator intermediate equipment receives described order, according to its resource information configuration node label swap table that carries; After described provider edge equipment receives described order, set up pseudo-line, configuration virtual connections group and stream filter table, and with both bindings;

In step 612, according to described node label swap table and routing information, for described transmission network service is set up label switched path;

In step 614, after described label switched path is set up, but Access-Resource and Admission Control Function to SPDF feedback resources acquired information, SPDF management control also transmits described transmission network service.

Referring to Figure 10, be the composition schematic diagram of the realization system of transport service in the NGN network of RACS control that the embodiment of the invention provides.

Manage and control as follows to transmitting Network under the NGN framework of RACS control:

1, user CE1 initiates service request, and mode can be by PORTAL, SIP signaling etc.; Operation controlling entity application function (AF, Application Function) is admitted this business according to local user's subscription data and analysis of strategies after receiving this request;

3, end subscriber CE2 is responded service request;

If 4 admit this business to end subscriber CE2, then operation controlling entity is initiated service request to the policy deciding functional entity (SPDF, Service-based Policy Decision Function) based on business;

5, after SPDF receives service request, initiate resource request to access-in resource and accommodating control function entity (Access-Resource and Admission Control Function, Access-Resource and Admission Control Function).After Access-Resource and Admission Control Function is received resource request, analyze this business the TUNNEL LSP between the provider edge equipment (PE, Provider Edge) of process whether set up.If set up, then judge whether to satisfy resource requirement;

If the TUNNEL LSP between 6 PE does not satisfy or do not set up TUNNEL LSP, then Access-Resource and Admission Control Function is initiated path computing request to PCE, with the path of TUNNEL LSP between the PE that selects professional process.If according to tactful needs service protection, then need between two PE, calculate two paths, be respectively operating path and protection path.PCE feeds back to Access-Resource and Admission Control Function with result of calculation subsequently;

If 7 management is the PBB-TE/PBT network, the business of setting up before then Access-Resource and Admission Control Function also will need is determined B-VLAN and the B-MAC that TUNNEL is connected with strategy.If what signaling needed is the IP address, the routing information that Access-Resource and Admission Control Function also will calculate PCE changes into the IP address information.If suitable path is arranged, then Access-Resource and Admission Control Function is initiated the foundation order of TUNNEL LSP to PE, and the parameter that order is carried is: information such as task identifier, source PE node, purpose PE node, explicit route information, B-VLAN+B-MAC label, network QOS parameter, protection relation, priority; Initiate branch road/PW passage respectively to two PE then and set up order, the parameter that order is carried is task identifier, target P E address, network QOS parameter, priority, protection relation etc.There is not the GMPLS control protocol if transmit network element, then also need to the path in the middle of all of process P nodes initiate TUNNEL and connect and set up order, command parameter is: target P node address, inbound port number, go into label, outbound port number, outgoing label, network QOS parameter etc., the label here is the label of broad sense, in the T-MPLS layer network, be the LSP label; In the SDH network, be VC12/VC3/VC4 time slot label; In the light crossover network, be the wavelength label; In the PBB-TE/PBT network, be the VLAN+MAC label.

9, TUNNEL LSP sets up;

10, Access-Resource and Admission Control Function carries out the resource request response according to existing resource situation or newly-built resource results to SPDF;

11, after SPDF receives resource request response,,, issue that gate is opened simultaneously according to the content of service request according to parameters such as local policy decision network QOSs, shutdown command and QOS parameter, task identifier etc.;

13, SPDF responds service request;

14, operation controlling entity responds the service request of user CE1;

If 15 user CE1 service request are admitted, then user traffic just can transmit on the transmission resource; So-called Business Stream is that the User IP stream that is different from below original RACS (is identified by five-tuple: source address, source port number, destination address, destination slogan, protocol number), the stream here is the transparent transmission stream of customer flow, such as port flow, and port+VLAN stream etc.The service traffics data that like this, just do not need perception user reality.

In the entire process process, in the interface protocol of each functional entity, all need to carry this parameter of task identifier, task identifier is distributed by AF.After PE receives the gate order, the PW/ bypass passage and the TUNNEL LSP of this task identifier correspondence associated.TUNNEL LSP may corresponding a plurality of task identifiers, only need that task identifier is identical just can to associate.

The implementation method and the system of transport service in the NGN network of RACS control that the embodiment of the invention provides, by in the NGN network of RACS control, including PCE/GMPLS in, resource control function entity collaborative work in the NGN network of described PCE/GMPLS and RACS control, to transmitting management and the control that network service is concentrated, and set up label switched path and transmit described transmission network service; In the NGN network of RACS control, make up the transmission net of high availability, unified business operation system.

Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential hardware platform, can certainly all implement by hardware.Based on such understanding, all or part of can the embodying that technical scheme of the present invention contributes to background technology with the form of software product, this computer software product can be stored in the storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.

Above disclosed only is an embodiment of the present invention, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.

Claims

1. the implementation method of a transport service in next generation network is characterized in that, comprising:

In the NGN network of resource and controlled function entity RACF control, include path-calculating element PCE/ universal multi protocol label exchange path GMPLS in, to realize that RACF is to transmitting Network Management and control;

2. as claimed in claim 1 in next generation network the implementation method of transport service, it is characterized in that, the transmission resource control function entity TRC-FE and the described PCE/GMPLS collaborative work of the NGN network of described RACF control, to transmitting management and the control that network service is concentrated, and indication operator equipment is set up the step of label switched path and is comprised for transmitting network service:

Described TRC-FE receives to after the request that transmits the network service Resources allocation, initiates path computing request to described PCE, obtains routing information;

Described TRC-FE concentrates various types of transmission nets is carried out resource management and control, and according to the type of described transmission net, obtains corresponding resource information;

Set up label switched path in conjunction with described routing information and resource information indication operator equipment.

3. as claimed in claim 2 in next generation network the implementation method of transport service, it is characterized in that described TRC-FE receives that step from path computing request to described PCE that initiate comprises into after the request that transmits the network service Resources allocation:

TRC-FE receives the request for transmission network service Resources allocation from policy deciding functional entity PD-FE;

TRC-FE analyze described transmission network service the label switched path between the provider edge equipment of process whether set up; As setting up, judge then whether it satisfies the resource requirement that transmits network service;

If not satisfying professional resource requirement or label switched path, the label switched path of having set up do not have under the situation of foundation, TRC-FE initiates path computing request to PCE, is passed through label switched path between the provider edge equipment to select described transmission network service.

4. as claimed in claim 3 in next generation network the implementation method of transport service, it is characterized in that described TRC-FE is after described PCE initiates path computing request, the step of obtaining routing information comprises:

PCE receives from the path computing request of TRC-FE laggard walking along the street and directly calculates;

PCE returns to TRC-FE with whole routing informations after calculating and finishing.

5. as claimed in claim 4 in next generation network the implementation method of transport service, it is characterized in that described method also comprises:

TRC-FE receives described whole routing information, directly initiates order to set up label switched path to operator's equipment or by PD-FE to operator's equipment; Carry resource information and routing information in the described order;

The source provider edge equipment receives after label switched path sets up order, initiates to set up label switched path signaling between the provider edge equipment to the purpose provider edge equipment, sets up label switched path.

6. as claimed in claim 3 in next generation network the implementation method of transport service, it is characterized in that described TRC-FE is after described PCE initiates path computing request, the step of obtaining routing information comprises:

After PCE calculated and finishes, whether notice TRC-FE had available path.

7. as claimed in claim 6 in next generation network the implementation method of transport service, it is characterized in that described method also comprises:

After TRC-FE receives the information that available path is arranged of PCE transmission, directly initiate path foundation order to operator's equipment, carry resource information in the described order, but do not comprise routing information to operator's equipment or by PD-FE;

After operator's equipment is received described order, initiate path computing request to PCE, PCE returns detailed path information;

According to described resource information and routing information, operator's equipment is set up label switched path.

As in the claim 2 to 7 each described in next generation network the implementation method of transport service, it is characterized in that, described TRC-FE concentrates various types of transmission nets is carried out resource management and control, comprise that specifically TRC-FE concentrates SDH (Synchronous Digital Hierarchy)/optical transfer network/light crossing net/operator backbone transmission net/multiprotocol label switching is transmitted net and carries out resource management and control; If TRC-FE management is that operator backbone transmits network, also need VLAN and MAC Address are managed and distribute.

As claim 4 or 6 described in next generation network the implementation method of transport service, it is characterized in that described method also comprises:

TRC-FE initiates order to set up branch road/pseudo-line passage to provider edge equipment;

After provider edge equipment receives orders, set up branch road/pseudo-line, configuration virtual connections group and stream filter table, and with both bindings.

As claim 4 or 6 described in next generation network the implementation method of transport service, it is characterized in that after described label switched path was set up, described management control and the step that transmits described business comprised:

But TRC-FE transmits described business to PD-FE feedback resources acquired information on described label switched path;

If resource can obtain, then PD-FE is respectively to the provider edge equipment transmitting order to lower levels;

After provider edge equipment is received this order, the pairing branch road of task identifier/pseudo-line passage and the pairing label switched path of this task identifier are bound, to realize the management control of PD-FE business.

11. as claim 5 or 7 described in next generation network the implementation method of transport service, it is characterized in that TRC-FE initiates order to operator's equipment and also comprises with the step of setting up label switched path:

Judge the equipment on the path of process whether all support generalized multiprotocol label switching (GMPLS) protocol, if not, then directly or by PD-FE to label switched path all operator's intermediate equipments of process and edge device issue label switched path and set up order; Carry resource information in the described order;

After described operator intermediate equipment receives described order, according to its resource information configuration node label swap table that carries;

After described provider edge equipment receives described order, set up branch road/pseudo-line passage, configuration virtual connections group is with the stream filter table and with both bindings.

12. the implementation method of a transport service in next generation network is characterized in that, comprising:

In the NGN network of resource and accommodation control subsystem RACS control, include path-calculating element PCE/ universal multi protocol label exchange path GMPLS in, to realize that RACS is to transmitting Network Management and control;

13. as claimed in claim 12 in next generation network the implementation method of transport service, it is characterized in that, the Access-Resource and Admission Control Function and the described PCE/GMPLS collaborative work of the NGN network of described RACS control, to transmitting management and the control that network service is concentrated, and indication operator equipment is set up the step of label switched path and is comprised for transmitting network service:

Described Access-Resource and Admission Control Function is received to after the request that transmits the network service Resources allocation, initiates path computing request to described PCE, obtains routing information;

Described Access-Resource and Admission Control Function is concentrated various types of transmission nets is carried out resource management and control, and according to the type of described transmission net, obtains corresponding resource information;

14. as claimed in claim 13 in next generation network the implementation method of transport service, it is characterized in that described Access-Resource and Admission Control Function receives that to after the request that transmits the network service Resources allocation initiate path computing request to described PCE, the step of obtaining routing information comprises:

It is the request of RACS traffic assignments resource that Access-Resource and Admission Control Function receives from the policy deciding functional entity SPDF based on business;

Access-Resource and Admission Control Function analyze described RACS business the label switched path between the provider edge equipment of process whether set up; As setting up, judge then whether it satisfies the resource requirement that transmits network service;

Not have under the situation of foundation at resource requirement that satisfy not to transmit the RACS business or label switched path, Access-Resource and Admission Control Function is initiated path computing request to PCE, is passed through label switched path between the provider edge equipment to select described transmission network service.

15. as claimed in claim 14 in next generation network the implementation method of transport service, it is characterized in that described Access-Resource and Admission Control Function is after described PCE initiates path computing request, the step of obtaining routing information comprises:

PCE receives from the path computing request of Access-Resource and Admission Control Function laggard walking along the street and directly calculates;

PCE returns to Access-Resource and Admission Control Function with whole routing informations after calculating and finishing.

16. as claimed in claim 15 in next generation network the implementation method of transport service, it is characterized in that described method also comprises:

Access-Resource and Admission Control Function receives described whole routing information, directly initiates order to set up label switched path to operator's equipment or by SPDF to operator's equipment; Carry resource information and routing information in the described order;

17. as claimed in claim 14 in next generation network the implementation method of transport service, it is characterized in that described Access-Resource and Admission Control Function is after described PCE initiates path computing request, the step of obtaining routing information comprises:

After PCE calculated and finishes, whether the notice Access-Resource and Admission Control Function had available path.

18. as claimed in claim 17 in next generation network the implementation method of transport service, it is characterized in that described method also comprises:

After Access-Resource and Admission Control Function is received the information that available path is arranged of PCE transmission, directly initiate path foundation order to operator's equipment, carry resource information in the described order, but do not comprise routing information to operator's equipment or by SPDF;

19. as in the claim 14 to 18 each described in next generation network the implementation method of transport service, it is characterized in that, described Access-Resource and Admission Control Function is concentrated various types of transmission nets is carried out resource management and control, comprise that specifically Access-Resource and Admission Control Function is concentrated SDH (Synchronous Digital Hierarchy)/optical transfer network/light crossing net/operator backbone transmission net/multiprotocol label switching is transmitted net and carries out resource management and control; If Access-Resource and Admission Control Function management is that operator backbone transmits network, also need VLAN and MAC Address are managed and distribute.

20. as claim 15 or 17 described in next generation network the implementation method of transport service, it is characterized in that described method also comprises:

Access-Resource and Admission Control Function is initiated order to set up branch road/pseudo-line passage to provider edge equipment respectively;

21. as claim 15 or 17 described in next generation network the implementation method of transport service, it is characterized in that after described label switched path was set up, described management control and the step that transmits described business comprised:

But Access-Resource and Admission Control Function transmits described business to SPDF feedback resources acquired information on described label switched path;

If resource can obtain, then SPDF is respectively to the provider edge equipment transmitting order to lower levels;

After provider edge equipment is received this order, the pairing branch road of task identifier/pseudo-line passage and the pairing label switched path of this task identifier are bound, to realize the management control of SPDF business.

22. as claim 16 or 18 described in next generation network the implementation method of transport service, it is characterized in that Access-Resource and Admission Control Function is initiated order to operator's equipment and also comprised with the step of setting up label switched path:

Judge the equipment on the path of process whether all support generalized multiprotocol label switching (GMPLS) protocol, if not, then directly or by SPDF to label switched path all operator's intermediate equipments of process and edge device issue label switched path and set up order; Carry resource information in the described order;

23. the realization system of a transport service in next generation network is characterized in that, has included path-calculating element PCE/ universal multi protocol label exchange path GMPLS in the NGN network of resource and controlled function entity RACF control, comprising:

24. as claimed in claim 23 in next generation network the realization system of transport service, it is characterized in that described transmission resource control function entity TRC-FE comprises:

The routing information acquisition module after receiving to the request that transmits the network service Resources allocation, is initiated path computing request to described PCE, obtains routing information;

The resource management control module is used for concentrating various types of transmission nets is carried out resource management and control;

The resource information acquisition module is used for the type according to described transmission net, obtains corresponding resource information and sets up label switched path with indication operator equipment.

25. as claimed in claim 24 in next generation network the realization system of transport service, it is characterized in that described routing information acquisition module comprises:

The resource request receiving element is used to receive and is the request of NGN traffic assignments resource from policy deciding functional entity PD-FE;

Judging unit, be used to analyze described transmission network service the label switched path between the provider edge equipment of process whether set up; As setting up, judge then whether it satisfies the resource requirement that transmits network service;

The path computing request unit, being used for going out satisfied resource requirement or the label switched path that transmits network service in judgment unit judges does not have under the situation of foundation, initiate path computing request to PCE, passed through label switched path between the provider edge equipment to select described transmission network service;

The routing information acquiring unit is used to receive the path computing result from PCE, obtains routing information.

26. as claimed in claim 24 in next generation network the realization system of transport service, it is characterized in that described resource management control module is concentrated SDH (Synchronous Digital Hierarchy)/optical transfer network/light crossing net/operator backbone transmission net/multiprotocol label switching is transmitted net and carries out resource management and control; If TRC-FE management is that operator backbone transmits network, also need VLAN and MAC Address are managed and distribute.

27. as claimed in claim 26 in next generation network the realization system of transport service, it is characterized in that described resource information acquisition module comprises:

The resource information acquiring unit is used for the transmission net type according to described TRC-FE management, obtains corresponding resource information;

The resource information transmitting element is used for directly initiating to order with indication operator equipment to operator's equipment to operator's equipment or by PD-FE setting up label switched path, carries resource information in the described order.

28. as claimed in claim 24 in next generation network the realization system of transport service, it is characterized in that described system also comprises:

The source provider edge equipment is used to receive label switched path and sets up order, initiates to set up label switched path signaling between the provider edge equipment to the purpose provider edge equipment;

The purpose provider edge equipment is used to receive described label switched path signaling;

According to resource information of carrying in the described order and routing information, set up label switched path between source provider edge equipment and the purpose provider edge equipment.

29. as claimed in claim 28 in next generation network the realization system of transport service, it is characterized in that described source provider edge equipment node and purpose provider edge equipment node are initiated branch road/pseudo-line passage respectively and set up order;

After source provider edge equipment and purpose provider edge equipment are received the other side's order, set up branch road/pseudo-line, configuration virtual connections group and stream filter table, and with both bindings.

30. as claimed in claim 28 in next generation network the realization system of transport service, it is characterized in that described system also comprises:

Operator's intermediate equipment if described provider edge equipment is not supported generalized multiprotocol label switching (GMPLS) protocol, then receives from TRC-FE or by TRC-FE and sets up order by PD-FE to the label switched path of its transmission; Carry resource information in the described order;

After described operator intermediate equipment receives described order, according to its resource information configuration node label swap table that carries; According to described node label swap table and routing information, for described transmission network service is set up label switched path.

31. the realization system of a transport service in next generation network is characterized in that, has included path-calculating element PCE/ universal multi protocol label exchange path GMPLS in the NGN network of resource and accommodation control subsystem RACS control, comprising:

32. as claimed in claim 31 in next generation network the realization system of transport service, it is characterized in that described Access-Resource and Admission Control Function comprises:

33. as claimed in claim 32 in next generation network the realization system of transport service, it is characterized in that described routing information acquisition module comprises:

The resource request receiving element, be used to receive from based on the policy deciding functional entity SPDF of business for transmitting the request of network service Resources allocation;

34. as claimed in claim 32 in next generation network the realization system of transport service, it is characterized in that described resource management control module is concentrated SDH (Synchronous Digital Hierarchy)/optical transfer network/light crossing net/operator backbone transmission net/multiprotocol label switching is transmitted net and carries out resource management and control; If Access-Resource and Admission Control Function management is that operator backbone transmits network, also need VLAN and MAC Address are managed and distribute.

35. as claimed in claim 32 in next generation network the realization system of transport service, it is characterized in that described resource information acquisition module comprises:

The resource information acquiring unit is used for the transmission net type according to described resource control function entity management, obtains corresponding resource information;

The resource information transmitting element is used for directly initiating to order with indication operator equipment to operator's equipment to operator's equipment or by SPDF setting up label switched path, carries resource information in the described order.

36. as claimed in claim 32 in next generation network the realization system of transport service, it is characterized in that described system also comprises:

37. as claimed in claim 32 in next generation network the realization system of transport service, it is characterized in that described source provider edge equipment node and purpose provider edge equipment node are initiated branch road/pseudo-line passage respectively and set up order;

After source provider edge equipment and purpose provider edge equipment are received the other side's order, set up branch road/pseudo-line, configuration virtual connections group is with the stream filter table and with both bindings.

38. as claimed in claim 32 in next generation network the realization system of transport service, it is characterized in that described system also comprises:

Operator's intermediate equipment if described provider edge equipment is not supported generalized multiprotocol label switching (GMPLS) protocol, then receives from Access-Resource and Admission Control Function or Access-Resource and Admission Control Function and sets up order by SPDF to the label switched path of its transmission; Carry resource information in the described order;