CN102752331B

CN102752331B - Method, resource control proxy and the system that implementation strategy controls in peer-to-peer network

Info

Publication number: CN102752331B
Application number: CN201110100727.3A
Authority: CN
Inventors: 吴建华; 陶全军
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2011-04-21
Filing date: 2011-04-21
Publication date: 2017-11-14
Anticipated expiration: 2031-04-21
Also published as: WO2012142978A1; CN102752331A

Abstract

The invention discloses the method that implementation strategy in a kind of reciprocity (P2P) network controls, this method includes：In calling procedure, after resource control proxy (RC proxy) receives the application layer business information message that service control function (SCF) node in P2P networks is sent, the address information of acquisition strategy controlled entity (PCE), it is rear to PCE send application layer services quality (QoS) request message；And/or after the RC proxy receive the Diameter message that the PCE is sent, SCF addresss of node information corresponding to acquisition, backward SCF nodes sending strategy control related news.The system and resource control proxy controlled the present invention discloses implementation strategy in a kind of P2P networks, using the method and system of the present invention, can effectively realize policy control in P2P networks.

Description

Method, resource control proxy and the system that implementation strategy controls in peer-to-peer network

Technical field

The present invention relates to reciprocity (P2P, Peer-to-Peer) network technology, plan is realized in more particularly to a kind of P2P networks Method, resource control proxy (RC-proxy, Resource Control Proxy) and the system slightly controlled.

Background technology

P2P networks are a kind of distributed networks, and the participant of P2P networks shares the resource kimonos that whole network is possessed Business, these shared resources and service can directly be accessed by other nodes in network and turned without special intermediate entities Hair.In P2P networks, each participant is both the supplier (server) of resource and service, while is resource and service again Obtain taker (client).P2P networks are using network technology is superimposed, i.e.,：Node is added to superposition (Overlay) net of self-organizing In network, and the quick lookup of resource can be realized using distributed hashtable (DHT, Distributed Hash Table) algorithm And positioning.

The agreement of P2P networks mainly includes：Internet engineering task group (IETF, Internet Engineering Task Force the Resource orientation) defined and discovery (RELOAD, REsource LOcation And Discovery) agreement, RELOAD Agreement refers to draft-ietf-p2psip-base-00.RELOAD agreements provide the basic service of self-organizing network, the base This business includes：The storage and lookup of the route, data of message between nodes.In addition, RELOAD agreements also define node registration Server (Enrollment Server), the Enrollment Server be used for for node distribution node number, safety certificate, And the configuration information of overlay networks, wherein, the configuration information includes：Using which kind of DHT algorithm etc..RELOAD agreements Node in overlay networks is divided into two classes, i.e.,：Peer nodes and client ends.Wherein, Peer nodes possess P2P message The functions such as route, storage and lookup, client ends can send P2P message to Peer nodes, message carried out by Peer nodes Route and data storage, client ends itself do not possess the message route and data storage function of P2P layers.

Development and maturation with P2P network technologies and related protocol, also begin in communication network introduce P2P network skills Art, the control and processing of core network service being carried out, Fig. 1 is a kind of networking mode of the typical communication network for introducing P2P networks, As shown in figure 1, the equipment of the network includes：Service control function (SCF, Service Control Function) entity and use Family terminal (UE, User Entity).Wherein, SCF entities are added in Overlay networks as Peer nodes, all SCF Entity forms a P2P core net to homogenize, the common control function for completing P2P core network services.In P2P core nets, The function phase of each SCF entities is same, is responsible for user's access, session control and business triggering.UE is linked into as client ends In P2P core nets, in other words, UE in Overlay networks is also equipped with P2P except possessing in legacy network in addition to UE function The function at the client ends of network.In the following description, SCF entities are referred to as SCF nodes.In P2P core nets, each UE All there is the SCF nodes for being responsible for processing UE business, also referred to as responsible node.Under the networking model, the traffic mould of basic call Type is as illustrated in fig. 2, it is assumed that UE 1 is caller, and UE 2 is called, and SCF 1 is UE 1 responsible node, and SCF 2 is being responsible for for UE 2 Node, the calling procedure between UE 1 and UE 2 are：UE 1 call business is sent to SCF 2, SCF after the processing of SCF 1 After 2 are handled the business received, UE 2 is sent to.In conversation procedure, between UE and SCF and between SCF and SCF Traffic signaling interaction uses session initiation protocol (SIP, Session Initiation Protocol), between UE and SCF, And interact the such as route of P2P layers and storage etc. of the P2P layers between SCF and SCF then use RELOAD agreements.

In order to ensure user's communication quality, while Internet resources are rationally utilized, operator needs to carry out tactful control to network System.At present, policy controlling system mainly includes：Telecommunications and the Internet converged services and high-level network protocol (TISPAN, Telecommunications and Internet Converged Services and Protocols for Advanced Networking Resource and Admission Control Sub-system (RACS, Resource and Admission Control) Subsystem), the resource and admission of International Telecommunication Union (ITU, International Telecommunications Union) Function (RACF, Resource and Admission Control Function) and third generation partner program Strategy and charging control (PCC, the Policy and of (3GPP, the 3rd Generation Partnership Project) Charging Control), the general principle of above-mentioned policy controlling system is similar, above-mentioned policy controlling system, as shown in figure 3, Mainly include：Application function (AF, Application Function) entity 31, policy control functions entity 32 and strategy Perform function entity 33.Wherein, the function of AF entities 31 is：Operation layer is abstracted, and realize service quality (QoS, Quality of Service) mapping first layer mapping, i.e.,：Agreement (SDP, Session are described obtaining service conversation Description Protocol) after information, by the information MAP in SDP into QoS of survice information, and it is encapsulated in Diameter and disappears Policy control functions entity 32 is handed down in breath；The function of policy control functions entity 32 is：Based on carrier policy, business The information such as QoS request and user's signing formulates corresponding resource control scheme, and is handed down to policy execution functional entity 33 and pacifies Dress performs.The function of policy execution functional entity 33 is：Under the guidance of policy control functions entity, the implementation of progress qos policy, Gate, information reporting etc. operate.

Existing policy controlling system is applied to traditional IP multimedia subsystem (IMS, IP Multimedia Subsystem) network.It is introduced into if existing policy controlling system be applied directly in the communication network of P2P network technologies, Routing issue will be produced.Specifically, when existing policy controlling system is applied to the communication network of introducing P2P network technologies When, it is desirable to SCF nodes possess the function of AF entities, and are docked with policy control functions entity.Because high dynamic be present in SCF nodes Property, in a policy control control procedure, after SCF node failures or generation Data Migration, policy control functions entity need to be by after Continuous related news are routed on new SCF nodes, and still, in existing system, policy control functions entity is for SCF nodes Dynamic change can not perceive, therefore, follow-up related news can be caused can not to be routed on correct destination node.

The content of the invention

In view of this, it is a primary object of the present invention to provide the method, RC- that implementation strategy controls in a kind of P2P networks Proxy and system, policy control can be effectively realized in P2P networks.

To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：

The invention provides the method that implementation strategy in a kind of P2P networks controls, this method includes：

In calling procedure, after RC-proxy receives the application layer business information message that the SCF nodes in P2P networks are sent, The address information of acquisition strategy controlled entity (PCE, Policy Control Entity), rear send application layer QoS to PCE Request message；And/or after the RC-proxy receives the Diameter message that the PCE is sent, SCF nodes corresponding to acquisition Address information, backward SCF nodes sending strategy control related news.

In such scheme, this method further comprises：

When SCF nodes described in calling procedure sends message to the RC-proxy first, described in the SCF nodes acquisition RC-proxy address information, establish connect with the RC-proxy afterwards.

In such scheme, the address information for obtaining the RC-proxy, it is：

When the SCF nodes add P2P networks, registration server is by the configuration of the address information comprising the RC-proxy File is handed down to SCF nodes；Or

The SCF nodes are inquired about from the tracking server in P2P networks, obtain the address information of the RC-proxy； Or

The SCF nodes obtain the address information of the RC-proxy by DHT algorithms.

In such scheme, the address information of the RC-proxy is：IP address or be domain name or be node (Node) compile Number (ID, Identity).

In such scheme, the address information of the PCE in the acquisition P2P networks, it is：

The RC-proxy inquires about to Diameter route agents (DRA, Diameter Routing Agent), obtains institute State PCE address information；Or

The RC-proxy obtains the address information of the PCE from the configuration of local carrier policy；Or

The RC-proxy obtains the address information of the PCE from the address information locally prestored.

In such scheme, when between the RC-proxy and the SCF nodes and the RC-proxy and the PCE Between when transmitting the agreement difference that application layer QoS request message and policy control related information use, sending application layer to PCE Before QoS request message, this method further comprises：

The application layer QoS request message received is carried out protocol conversion process by the RC-proxy；

Accordingly, before related news are controlled to SCF nodes sending strategy, this method further comprises：

The policy control related news received are carried out protocol conversion by the RC-proxy.

In such scheme, this method further comprises：

If the function distributing of AF entities, on the SCF nodes, application layer SDP information is mapped to by the SCF nodes Application layer QoS information, rear sent to the RC-proxy include the application layer business information message of application layer QoS information；

If the function distributing of AF entities, on the RC-Proxy, the RC-proxy believes the application layer service received Application layer SDP information in breath message is mapped to application layer QoS information.

In such scheme, SCF addresss of node information corresponding to the acquisition, it is：

When the RC-proxy is local has stored corresponding SCF addresss of node information in advance, directly from local acquisition Corresponding SCF addresss of node information；

When SCF addresss of node information corresponding to the RC-proxy is not stored locally, according to DHT algorithms from P2P nets SCF addresss of node information corresponding to inquiry in network.

In such scheme, in SCF addresss of node information corresponding to acquisition, and when the RC-proxy has locally been deposited in advance Corresponding to storage during the information of SCF addresss of node, after the RC-proxy knows corresponding SCF node failures, this method is further Including：

The backup SCF addresss of node information of the SCF nodes of failure is inquired about from P2P networks according to DHT algorithms, will be stored The SCF addresss of node information updating of failure be the backup SCF addresss of node information, the backward backup SCF save Point sending strategy control related news.

In such scheme, before related news are controlled to the backup SCF nodes sending strategy, this method is further wrapped Include：

The RC-proxy is established with the backup SCF nodes and connected.

In such scheme, corresponding SCF addresss of node information, and RC-proxy have been stored in advance when RC-proxy is local When data corresponding to the policy control related news for determining to receive have migrated, this method further comprises：

The SCF nodes return to error response message to the RC-proxy；

After the RC-proxy receives error response message, inquired about according to DHT algorithms from P2P networks Data Migration to Target SCF addresss of node, it is the target that the Data Migration arrives by the corresponding SCF addresss of node information updating of storage SCF addresss of node information, the backward Data Migration arrive target SCF nodes sending strategy control related news.

In such scheme, before the target SCF nodes sending strategy control related news to the Data Migration, the party Method further comprises：

The RC-proxy is established with the target SCF nodes that the Data Migration arrives and connected.

Present invention also offers the resource control proxy that implementation strategy in a kind of P2P networks controls, the resource control proxy Including：Acquisition module and sending module；Wherein,

Acquisition module, after the application layer business information message for receiving the transmission of SCF nodes, PCE address information is obtained, And the PCE of acquisition address information is sent to sending module；And/or after receiving the Diameter message of PCE transmissions, obtain Corresponding SCF addresss of node information, and the SCF addresss of node information of acquisition is sent to sending module；

Sending module, for receive acquisition module transmission PCE address information after, to PCE send application layer QoS request Message；And/or after receiving the SCF addresss of node information of acquisition module transmission, disappear to SCF nodes sending strategy control correlation Breath.

In such scheme, when obtaining PCE address information, the acquisition module, it is specifically used for：Inquire about, obtain to DRA PCE address information；Or PCE address information is obtained from the configuration of local carrier policy；Or deposited in advance from local PCE address information is obtained in the address information of storage.

In such scheme, in SCF addresss of node information corresponding to acquisition, the acquisition module, it is specifically used for：When this When ground has stored corresponding SCF addresss of node information in advance, directly from SCF addresss of node information corresponding to local obtain； Corresponding to do not store locally during the information of SCF addresss of node, inquired about according to DHT algorithms from P2P networks corresponding to SCF nodes Address information.

In such scheme, corresponding SCF has been stored in advance in SCF addresss of node information corresponding to acquisition, and when local During the information of address of node, and after the SCF node failures corresponding to know, the acquisition module, be additionally operable to according to DHT algorithms from The backup SCF addresss of node information of the SCF nodes of failure is inquired about in P2P networks, by the SCF addresss of node of the failure of storage Information updating is the backup SCF addresss of node information, and the backup SCF addresss of node information is sent into transmission mould Block；

The sending module, after the address information for the backup node for being additionally operable to receive acquisition module transmission, to described Backup SCF nodes sending strategy controls related news.

In such scheme, corresponding SCF addresss of node information has been stored in advance when local, and determine the strategy received When data corresponding to control related news have migrated, the acquisition module, it is additionally operable to according to DHT algorithms from P2P networks The target SCF addresss of node that inquiry Data Migration arrives, are the number by the corresponding SCF addresss of node information updating of storage According to the target SCF address of node information moved to and the target SCF addresss of node information transmission for arriving the Data Migration To sending module；

The sending module, be additionally operable to receive the Data Migration of acquisition module transmission to target SCF nodes ground After the information of location, the target SCF nodes sending strategy arrived to the Data Migration controls related news.

, please when transmitting application layer QoS between RC-proxy and SCF nodes and between RC-proxy and PCE in such scheme When seeking agreement difference used by message and policy control related information, the sending module, the application layer that will be received is additionally operable to QoS request message, and/or policy control related information carry out protocol conversion process, and by the application layer after protocol conversion process QoS request message, and/or policy control related information are sent respectively to PCE and/or SCF nodes.

In such scheme, the resource control proxy further comprises：Memory module, for store PCE address information, And/or SCF addresss of node information.

In such scheme, the resource control proxy further comprises：Link block is established, is connected for being established with SCF nodes Connect.

Present invention also offers the system that implementation strategy in a kind of P2P networks controls, the system includes：First SCF nodes, RC-proxy and PCE；Wherein,

First SCF nodes, in calling procedure, application layer business information message to be sent to RC-proxy；And/or connect Receive the policy control related news that RC-proxy is sent；

RC-proxy, after the application layer business information message for receiving the transmission of the first SCF nodes, obtain PCE address Information, and send application layer QoS request message to PCE；And/or after receiving the Diameter message of PCE transmissions, obtain corresponding SCF addresss of node information, and to the first SCF nodes sending strategy control related news；

PCE, for receiving the application layer QoS request message of RC-proxy transmissions；And/or sent to RC-proxy Diameter message.

In such scheme, the first SCF nodes, it is additionally operable in calling procedure send message to the RC-proxy first When, RC-proxy address information is obtained, and establish and connect with RC-proxy；

The RC-proxy, it is additionally operable to establish connection with the first SCF nodes.

In such scheme, the system further comprises the 2nd SCF nodes, is the backup SCF nodes of the first SCF nodes, uses In the policy control related news for receiving RC-proxy transmissions；

In SCF addresss of node information corresponding to acquisition, and when RC-proxy has locally stored the first SCF nodes in advance Address information, after RC-proxy knows the first SCF node failures, the RC-proxy, it is additionally operable to according to DHT algorithms from P2P nets The 2nd SCF addresss of node information is inquired about in network, is the 2nd SCF nodes by the first SCF addresss of node information updating of storage Address information, and to the 2nd SCF nodes sending strategy control related news.

In such scheme, the RC-proxy, it is additionally operable to establish connection with the 2nd SCF nodes；

The 2nd SCF nodes, it is additionally operable to establish connection with RC-proxy.

In such scheme, the system further comprises：3rd SCF nodes, for receiving the strategy control of RC-proxy transmissions Related news processed；

Corresponding SCF addresss of node information has been stored in advance when RC-proxy is local, and RC-proxy determines to receive Policy control related news corresponding to data when having migrated, the first SCF nodes, be additionally operable to return to RC-proxy Error response message；

The RC-proxy, after the error response message for being additionally operable to receive the return of the first SCF nodes, according to DHT algorithms from The 3rd SCF addresss of node are inquired about in P2P networks, are the 3rd by the first SCF addresss of node information updating corresponding to storage SCF addresss of node information, and control related news to the 3rd SCF nodes sending strategy.

In such scheme, the RC-proxy, it is additionally operable to establish connection with the 3rd SCF nodes；

3rd SCF nodes, it is additionally operable to establish connection with RC-proxy.

Method, RC-proxy and the system that implementation strategy controls in P2P networks provided by the invention, in calling procedure, RC- After proxy receives the application layer business information message that the SCF nodes in P2P networks are sent, PCE address information is obtained, afterwards Application layer QoS request message is sent to PCE；And/or after the RC-proxy receives the Diameter message that the PCE is sent, SCF addresss of node information corresponding to acquisition, backward SCF nodes sending strategy control related news, in this way, can be in P2P nets Policy control is effectively realized in network.In addition, because RC-proxy can be in SCF addresss of node information corresponding to acquisition Afterwards, policy control related news are just sent to SCF nodes, in this way, in the SCF node failures or generation number of currently processed business During according to migration, policy control related news can be correctly routed to corresponding SCF nodes.

Brief description of the drawings

Fig. 1 is the networking mode schematic diagram for the communication network for typically introducing P2P networks in the prior art；

Fig. 2 is the traffic model schematic of the basic call of the typical communication network for introducing P2P networks；

Fig. 3 is the structure composition schematic diagram of traditional policy controlling system；

The method flow schematic diagram that implementation strategy controls in Fig. 4 P2P networks of the present invention；

Fig. 5 is the method flow schematic diagram of the implementation strategy of embodiment one control；

Fig. 6 is the method flow schematic diagram of the implementation strategy of embodiment two control；

Fig. 7 is the method flow schematic diagram of the implementation strategy of embodiment three control；

Fig. 8 is the method flow schematic diagram of example IV implementation strategy control；

Fig. 9 is the system structure diagram that implementation strategy controls in P2P networks of the present invention；

Figure 10 is the resource control proxy structural representation that implementation strategy controls in P2P networks of the present invention.

Embodiment

The present invention basic thought be：In calling procedure, RC-proxy receives answering for the SCF nodes transmission in P2P networks After layer service informational message, obtain PCE address information, it is rear to PCE send application layer QoS request message；And/or institute After stating the Diameter message that RC-proxy receives the PCE transmissions, SCF addresss of node information corresponding to acquisition is backward SCF nodes sending strategy controls related news.

Below in conjunction with the accompanying drawings and specific embodiment the present invention is further described in more detail.

The method that implementation strategy controls in P2P networks of the present invention, as shown in figure 4, comprising the following steps：

Step 401：When needing to be called, SCF nodes obtain RC-proxy address information, are built afterwards with RC-proxy Vertical connection；

Here, the SCF nodes are the Peer nodes in P2P networks, and the function that the SCF nodes are realized is：It is responsible for use Family access, session control and business triggering；

When SCF nodes send message to RC-proxy first in calling procedure, just need to perform step 401；Connection is established Afterwards, when SCF nodes subsequently send message to RC-proxy, then step 401 need not be performed, can directly be sent to RC-proxy Message；

In actual application, RC-proxy is linked into P2P networks with P2P client ends, specific access procedure It is identical with prior art, repeat no more here；Wherein, carried out between SCF nodes and RC-proxy using RELOAD agreements Route, in this way, can be merged completely with existing network；Which kind of do not limited using agreement between RC-proxy and SCF nodes to pass Application layer QoS request message and policy control related information are sent, application layer QoS request is transmitted between RC-proxy and SCF nodes Agreement can be specifically RELOAD agreements or Diameter or other used by message and policy control related information Suitable application layer protocol；

The address information of the acquisition RC-proxy, it is specially：

When SCF nodes add P2P networks, enrollment server match somebody with somebody the address information comprising RC-proxy Put file and be handed down to SCF nodes, SCF nodes obtain RC-proxy address information accordingly；Or

SCF nodes are inquired about from tracking (tracker) server in P2P networks, obtain RC-proxy address Information；Or

SCF nodes find RC-proxy address information by DHT algorithms；

Wherein, after RC-proxy adds P2P networks, can initiate to register to tracker servers, tracker server meetings Store the relevant informations such as RC-proxy address information；After RC-proxy adds P2P networks, can according to DHT algorithms, by itself The relevant informations such as address information are stored in the specific node in P2P networks, and SCF nodes can find RC- by DHT algorithms Proxy address information；

The address information can be specifically：IP address or domain name or Node ID etc.；

If transmit application layer QoS request message between RC-proxy and SCF nodes and policy control related information is adopted Agreement is not RELOAD agreements, then when establishing connection with RC-proxy, this method further comprises：

SCF nodes are established application layer with RC-proxy and are connected；

In practical application, RC-Proxy can individually be disposed, can also set with other network element devices as logic unit Put together, for example for, RC-Proxy can be deployed on PCE.

Step 402：After RC-proxy receives the application layer business information message of SCF nodes transmission, PCE address letter is obtained Breath, it is rear to PCE send application layer QoS request message；And/or after RC-proxy receives the Diameter message of PCE transmissions, SCF addresss of node information corresponding to acquisition, backward SCF nodes sending strategy control related news；

Here, the application layer business information message includes：SCF addresss of node information, user identify, using layer service The session identification of session between information and SCF and RC-proxy (SR, SCF-RC-proxy)；Wherein, it is described to apply layer service Message is：Application layer SDP information or application layer QoS information；Specifically, if the function distributing of AF entities is on SCF nodes, Application layer SDP information is mapped to application layer QoS information by SCF nodes, carries sent in application layer business information message afterwards To RC-proxy, if the function distributing of AF entities on RC-Proxy, application layer industry that SCF nodes are sent to RC-proxy Business information is application layer SDP information, and after RC-proxy receives application layer SDP information, application layer SDP information is mapped into application layer QoS information；Wherein, the specific mapping mode of application layer SDP information and application layer QoS information is prior art；

In practical application, application layer QoS request message and policy control related information are transmitted between RC-proxy and PCE Used agreement is adopted as Diameter.When between RC-proxy and SCF nodes and between RC-proxy and PCE Used by transmission application layer QoS request message and policy control related information during agreement difference, RC-proxy should by what is received After carrying out protocol conversion process with layer QoS request message and policy control related information, PCE or SCF nodes are then forwarded to；Its In, existing protocol conversion process flow can be used by carrying out the concrete processing procedure of protocol conversion；

The function of the PCE is identical with policy control functions entity of the prior art, and the PCE specifically can be with It is：Strategy and charging rule functions (PCRF, Policy and Charging Rules Function) in 3GPP PCC is real Strategy decisive function (SPDF, the Service-based Policy based on business in body or TISPAN RACS Decision Function) or ITU general RACF (x-RACF)；

The diameter message can be specifically that confirmation message or time reporting message or other policy controls are related Message；

The address information of the acquisition PCE, it is specially：

RC-proxy inquires about to DRA, obtains PCE address information；Or

RC-proxy obtains PCE address information from the configuration of local carrier policy；Or

RC-proxy obtains PCE address information from the address information locally prestored；

Wherein, PC-proxy inquires about the address information for obtaining PCE to DRA and obtained from the configuration of local carrier policy Take the concrete processing procedure of PCE address information same as the prior art, repeat no more here；In practical application, work as RC- When proxy does not store PCE address information in advance, can by DRA inquire about obtain PCE address information, or, by from PCE address information is obtained in the configuration of local carrier policy, when RC-proxy is inquired about by DRA or by from local operator After getting PCE address information in strategy configuration, then PCE address information can be locally stored, disappear subsequently to send Directly used during breath；Here, the specific implementation of PCE address information, which is locally stored, to be：Establish session between SR Binding relationship between session identification and PCE address information, i.e.,：Corresponding relation, RC-proxy receive application layer business information After message, the session identification of session between the SR in message, you can PCE address information corresponding to finding；

SCF addresss of node information corresponding to the acquisition, it is specially：

It is directly corresponding from local acquisition when RC-proxy is local has stored corresponding SCF addresss of node information in advance SCF addresss of node information；

When RC-proxy does not locally store corresponding SCF addresss of node information, according to DHT algorithms from P2P networks SCF addresss of node information corresponding to inquiry；

Wherein, RC-proxy is local stored in advance corresponding to the specific implementation of SCF addresss of node information can be：Build Between vertical PCE address information, SR between the information such as session identification, user's mark and SCF addresss of node information of session Binding relationship, i.e.,：Corresponding relation, after RC-proxy receives Diameter message, according to binding relationship, you can corresponding to finding SCF addresss of node information；Here, when RC-proxy is local has stored corresponding SCF addresss of node information in advance, directly From SCF addresss of node information corresponding to local obtain, backward SCF nodes sending strategy control related news to refer to：Obtain Corresponding SCF nodes be Data Migration does not occur, and/or does not fail SCF nodes；

Corresponding SCF nodes have been stored in advance in SCF addresss of node information corresponding to acquisition, and when RC-proxy is local Address information when, if RC-proxy know corresponding to SCF node failures, this method may further include：

The backup SCF addresss of node information of the SCF nodes of failure is inquired about from P2P networks according to DHT algorithms, will be stored The SCF addresss of node information updating of failure be the backup SCF addresss of node information, the backward backup SCF save Point sending strategy control related news；

Before related news are controlled to the backup SCF nodes sending strategy, this method can further include：

RC-proxy is established with the backup SCF nodes and connected；

Corresponding SCF addresss of node information has been stored in advance when RC-proxy is local, and RC-proxy determines to receive Policy control related news corresponding to data when having migrated, this method further comprises：

SCF nodes return to error response message to RC-proxy；

After RC-proxy receives error response message, inquired about according to DHT algorithms from P2P networks Data Migration to target SCF addresss of node, it is that the target SCF that the Data Migration arrives is saved by the corresponding SCF addresss of node information updating of storage The address information of point, the target SCF nodes sending strategy that arrives of the backward Data Migration control related news；

Wherein, SCF nodes determine the session mark of session between the local SR for being not present and being carried in policy control related news After knowledge, then error response message is returned to RC-proxy；After RC-proxy receives error response message, the mistake in message Data corresponding to the policy control related news that cause value can be determined to receive have migrated；

Before the target SCF nodes sending strategy control related news to the Data Migration, this method can also be entered One step includes：

RC-proxy is established with the target SCF nodes that the Data Migration arrives and connected.

With reference to embodiment, the present invention is further described in more detail.

Embodiment one：

The application scenarios of the present embodiment are：In P2P core nets, SCF nodes to PCE send application layer business information, with And PCE controls the implementation process of dependent event to SCF nodes reporting policy.Wherein, between RC-proxy and SCF nodes and Agreement is identical used by transmitting application layer QoS message and policy control related information between RC-proxy and PCE, the present embodiment The method of implementation strategy control, as shown in figure 5, comprising the following steps：

Step 501：When needing to be called, SCF nodes obtain RC-proxy address information；

Here, the SCF nodes obtain RC-proxy address information, are specially：

SCF nodes are inquired about from the tracker servers in P2P networks, obtain RC-proxy address information；Or Person,

SCF nodes find RC-proxy address information by DHT algorithms；

The address information can be specifically：IP address or domain name or node (Node) numbering (ID, Identity)；With Under description in, the address information is Node ID.

Step 502：After SCF nodes get RC-proxy Node ID, connection request is sent to RC-proxy (Attach request) message；

Specifically, the Attach request message enters walking along the street according to RC-proxy Node ID in P2P networks By eventually arriving at RC-proxy.

Step 503：After RC-proxy receives Attach request message, connection request response is returned to SCF nodes (AttachReqAns) message；

Here, after RC-proxy returns to AttachReqAns message to SCF nodes, then SCF nodes and RC-proxy are shown Establish IP connections.

Step 504：After SCF nodes receive AttachReqAns message, application layer connection request is sent to RC-proxy (AppAttach) message.

Step 505：After RC-proxy receives AppAttach request message, returning to application layer connection to SCF nodes please Seek response (AppAttachAns) message；

Here, after RC-proxy returns to AppAttachAns message to SCF nodes, then SCF nodes and RC-proxy are shown Establish application layer connection；

Wherein, the specific implementation of step 502~505 is same as the prior art, repeats no more here；

Perform step 504~505 purpose be：SCF nodes obtain RC-proxy application layer IP address, and establish application Layer connection, such case are applied between SCF nodes and RC-Proxy using the situation of the application layer protocols such as diameter agreements, In other words, the situation for performing step 504~505 is applicable to using the upper-layer protocols such as diameter agreements, and unknown RC- The situation of proxy application layer IP address.If, can be with using RELOAD agreements between SCF nodes and RC-Proxy Do not perform step 504~505；

When SCF nodes send message to RC-proxy first in calling procedure, just need to perform step 501~505；Connection After foundation, when SCF nodes subsequently send message to RC-proxy, then step 501~505 need not be performed, directly can be to RC- Proxy sends message.

Step 506：After SCF nodes receive AppAttachAns message, send application layer business information to RC-proxy and disappear Breath；

Here, the application layer business information message package address of node containing SCF information, user identify, using layer service The session identification of session between information and SR；

Wherein, the session identification of session is a character string caused by SCF nodes between the SR, for identifying SCF sections Some session between point and RC-proxy；

The application layer business information refers to：Application layer SDP information or application layer QoS information；Here, the application layer industry Information of being engaged in is that application layer SDP information is still that application layer QoS information is determined by the deployment of the function of AF entities, specifically, if For the function distributing of AF entities on SCF nodes, then application layer SDP information is mapped to application layer QoS information by SCF nodes, and is taken Band is sent to RC-proxy in application layer business information message, if the function distributing of AF entities on RC-Proxy, SCF Node is application layer SDP information to the RC-proxy application layer business information sent, and RC-proxy receives application layer SDP information Afterwards, application layer SDP information is mapped to application layer QoS information；Wherein, application layer SDP information and application layer QoS information is specific Mapping mode is prior art；

Specifically used agreement is unlimited between SCF nodes and RC-proxy, can use RELOAD agreements, can also use The upper layer application protocols such as Diameter.

Step 507~508：After RC-proxy receives application layer business information message, PCE address information is obtained；Afterwards Application layer QoS request message is sent to PCE；

Here, the mode that RC-proxy obtains PCE address information can be inquired about to DRA or directly from this Obtained in ground carrier policy configuration；Wherein, PC-proxy obtains the concrete processing procedure and prior art of PCE address information It is identical, repeat no more here；

The PCE sends application layer QoS request message, is specially：

If the function distributing of AF entities, on RC-proxy, the application layer business information that RC-proxy is received is application Application layer SDP information is mapped to application layer QoS information, afterwards carries application layer QoS information by layer SDP information, RC-proxy PCE is sent in application layer QoS request message；

If the function distributing of AF entities, on SCF, the application layer business information that RC-proxy is received is application layer QoS Application layer QoS information is directly carried in application layer QoS request message and is sent to PCE by information, RC-proxy；

Here, the application layer QoS request message bearing that RC-proxy is sent to PCE is described in diameter message Diameter message packages QoS information containing application layer, session-ID the and RC-proxy address informations of diameter sessions Deng；

After RC-proxy gets PCE address information, session identification, the ground of SCF nodes of session between SR can be stored Location information, user's mark, the binding relationship of diameter session-ID, PCE address information, can subsequently be deposited according to this The binding relationship of storage is route, i.e.,：Follow-up RC-proxy can obtain PCE address informations and described according to the binding relationship SCF addresss of node information.

Step 509：After PCE receives application layer QoS request message, storage service information, returned to RC-proxy Diameter confirmation messages；

Diameter confirmation messages described here include session-ID.

Step 510~511：After RC-proxy receives Diameter confirmation messages, SCF addresss of node information is obtained；It Afterwards confirmation message is sent to SCF nodes；

Here, the session identification of session between the SR is carried in the confirmation message sent to SCF nodes；

RC-proxy obtains SCF addresss of node information, is specially：

According to the session-ID in Diameter confirmation messages, the binding relationship being locally stored is inquired about, so as to get SCF addresss of node information.

Step 512：When PCE is needed to RC-proxy reported events, PCE sends Diameter reporting events to RC-proxy Message；

Here, reported event, user's mark and diameter are carried in the Diameter reporting events message The information such as session-ID.

Step 513~514：After RC-proxy receives Diameter reporting events message, the SCF addresss of node are obtained Information；It is rear to the SCF nodes send reporting events message；

Here, the session mark of session between the SR is carried in the reporting events message sent to the SCF nodes Knowledge and notification event；

Wherein, RC-proxy obtains SCF addresss of node information, is specially：

According to the session-ID in Diameter reporting events message, the binding relationship being locally stored is inquired about, so as to obtain Get SCF addresss of node information.

Step 515：After SCF nodes receive reporting events message, confirmation message is sent to RC-proxy；

Here, in the confirmation message carry SR between session session identification.

Step 516：After RC-proxy receives confirmation message, it is locally stored according to the inquiry of the session identification of session between SR Binding relationship, get PCE address information, it is rear to PCE send confirmation message.

Embodiment two：

The application scenarios of the present embodiment are：In P2P core nets, the strategy of the SCF nodes of processing business in a session Failed in control process, i.e.,：The SCF nodes, which are delayed, machine or exits P2P core nets, wherein, RC-proxy has been previously stored SR Between session session identification, SCF addresss of node information, user's mark, diameter session-ID, PCE ground The binding relationship of location information, wherein, transmit application layer between RC-proxy and SCF nodes and between RC-proxy and PCE Agreement is identical used by QoS message and policy control related information.After the SCF failures of processing business, by the SCF nodes to fail Backup SCF nodes take over the SCF node processing business of failure.The method of the present embodiment implementation strategy control, as shown in fig. 6, Comprise the following steps：

Step 601：When PCE is needed to RC-proxy reported events, PCE sends Diameter reporting events to RC-proxy Message；

Step 602：RC-proxy receives Diameter reporting events message, and knows the SCF node failures of processing business Afterwards, Hash (hash) value identified according to user, the backup of the SCF nodes of failure is inquired about using DHT algorithms from P2P networks SCF addresss of node information, and using backup SCF addresss of node information instead of the failure in the binding relationship that prestores SCF addresss of node information；

Here, RC-proxy knows that the method for the SCF node failures of processing business can use existing technology, herein no longer Repeat.

Step 603：RC-proxy sends Attach request message to backup SCF nodes.

Here, after the SCF node failures of processing business, backup SCF nodes can would know that processing industry by prior art The SCF node failures of business, now, the backup SCF nodes can to RC-proxy send Attach request message, so as to RC-proxy establishes IP connections and application layer connection, and then takes over the SCF node processing business of failure；Wherein, backup SCF nodes RC-proxy address information can be obtained by the backup information of the SCF nodes of failure；

When the address information of the RC-proxy is RC-proxy Node ID, the Attach request message It is route according to RC-proxy Node ID in P2P networks, eventually arrives at RC-proxy.

Step 604：After backup SCF nodes receive Attach request message, returned to RC-proxy AttachReqAns message；

Here, backup SCF nodes to RC-proxy return AttachReqAns message after, then show backup SCF nodes and RC-proxy establishes connection.

Step 605：After RC-proxy receives AttachReqAns message, send AppAttach to backup SCF nodes and disappear Breath.

Step 606：After backup SCF nodes receive AppAttach request message, returned to RC-proxy AppAttachAns message；

Here, backup SCF nodes to RC-proxy return AppAttachAns message after, then show backup SCF nodes and RC-proxy establishes application layer connection；

Wherein, the specific implementation of step 603~606 is same as the prior art, repeats no more here；

Perform step 605~606 purpose be：RC-proxy obtains the application layer IP address of backup SCF nodes, and establishes Application layer connects, and such case is applied between backup SCF nodes and RC-Proxy using the application layers such as diameter agreements association The situation of view, in other words, the situation for performing step 605~606 are suitable for use with the upper-layer protocols such as diameter agreements, and not Know the situation of the application layer IP address of backup SCF nodes.If using RELOAD between backup SCF nodes and RC-Proxy Agreement, then it can not perform step 605~606.

Step 607：Reporting events message is sent to the backup SCF nodes.

Step 608：After the backup SCF nodes receive reporting events message, confirmation message is sent to RC-proxy；

Step 609：After RC-proxy receives confirmation message, inquired about according to the session identification of session between SR, inquiry is local The binding relationship of storage, get PCE address information, it is rear to PCE send confirmation message.

Embodiment three：

The application scenarios of the present embodiment are：In P2P core nets, the strategy of the SCF nodes of processing business in a session Data Migration occurs in control process, i.e.,：The SCF nodes of processing business are responsible for the portion of user data of processing and business information is moved Another SCF node is moved on to, wherein, RC-proxy has been previously stored the session identification of session between SR, the SCF nodes Address information, user's mark, the binding relationship of diameter session-ID, PCE address information, RC-proxy and SCF are saved Agreement phase used by application layer QoS message and policy control related information is transmitted between point and between RC-proxy and PCE Together.In the following description, the SCF nodes of processing business are referred to as SCF 1, the target SCF nodes of Data Migration is referred to as SCF 2.The method of the present embodiment implementation strategy control, as shown in fig. 7, comprises following steps：

Step 701：When PCE is needed to RC-proxy reported events, PCE sends Diameter reporting events to RC-proxy Message；

Step 702~703：After RC-proxy receives Diameter reporting events message, SCF 1 address information is obtained； It is rear to SCF 1 send reporting events message；

Here, carried in the reporting events message sent to SCF 1 between the SR session identification of session and Notification event；

Wherein, RC-proxy obtains SCF 1 address information, is specially：

According to the session-ID in Diameter reporting events message, the binding relationship being locally stored is inquired about, so as to obtain Get SCF 1 address information.

Step 704：SCF 1 receives reporting events message, and determines session between the local SR for being not present and being carried in message Session identification after, to RC-proxy return error response message；

Here, after due to Data Migration, any information of the local data that will not have been migrated of SCF 1, accordingly, SCF 1 determines the session identification of session between the local SR for being not present and being carried in message；It is former that mistake is carried in the error response message Cause, i.e.,：The session identification of session is not present between SR.

Step 705：After RC-proxy receives error response message, according to user identify hash values, using DHT algorithms from New SCF addresss of node information is reacquired in P2P networks, and the address information of SCF1 in the binding relationship is updated to New SCF nodes are SCF 2 address information；

Here, the relevant user data in RC-proxy SCF 1 according to knowable to error reason and business information are moved Move.

Step 706：RC-proxy sends Attach request message to SCF 2.

Step 707：After SCF 2 receives Attach request message, AttachReqAns message is returned to RC-proxy；

Here, after SCF2 returns to AttachReqAns message to RC-proxy, then show that SCF2 establishes with RC-proxy Connection.

Step 708：After RC-proxy receives AttachReqAns message, AppAttach message is sent to SCF 2.

Step 709：After SCF 2 receives AppAttach request message, return to AppAttachAns to RC-proxy and disappear Breath；

Here, after SCF 2 returns to AppAttachAns message to RC-proxy, then show that SCF 2 and RC-proxy is established Application layer connection；

Wherein, the specific implementation of step 706~709 is same as the prior art, repeats no more here；

Perform step 708~709 purpose be：RC-proxy obtains SCF 2 application layer IP address, and establishes application layer Connection, such case are applied between SCF 2 and RC-Proxy using the situation of the application layer protocols such as diameter agreements, change sentence To talk about, the situation for performing step 708~709 is applicable to using the upper-layer protocol such as diameter agreements, and unknown SCF2 The situation of application layer IP address.If step can not be performed using RELOAD agreements between SCF 2 and RC-Proxy 708~709.

Step 710：It is rear to SCF 2 send reporting events message.

Step 711：After SCF 2 receives reporting events message, confirmation message is sent to RC-proxy；

Step 712：After RC-proxy receives confirmation message, inquired about according to the session identification of session between SR, inquiry is local The binding relationship of storage, get PCE address information, it is rear to PCE send confirmation message.

Example IV：

The application scenarios of the present embodiment are：In P2P core nets, SCF nodes to PCE send application layer business information, with And PCE controls the implementation process of dependent event to SCF nodes reporting policy.Wherein, RC-proxy does not locally store binding relationship, I.e.：Do not store SCF address information, application layer is transmitted between RC-proxy and SCF nodes and between RC-proxy and PCE Agreement is identical used by QoS message and policy control related information, the method for the present embodiment implementation strategy control, such as Fig. 8 institutes Show, comprise the following steps：

Step 801：When needing to be called, SCF nodes obtain RC-proxy address information；

Here, the SCF nodes obtain RC-proxy address information, are specially：

SCF nodes find RC-proxy address information by DHT algorithms；

The address information can be specifically：IP address or domain name or Node ID；In following description, the address Information is Node ID.

Step 802：After SCF nodes get RC-proxy Node ID, Attach request are sent to RC-proxy Message；

Step 803：After RC-proxy receives Attach request message, return to AttachReqAns to SCF nodes and disappear Breath；

Here, after RC-proxy returns to AttachReqAns message to SCF nodes, then SCF nodes and RC-proxy are shown Establish connection.

Step 804：After SCF nodes receive AttachReqAns message, AppAttach message is sent to RC-proxy.

Step 805：After RC-proxy receives AppAttach request message, AppAttachAns is returned to SCF nodes Message；

Wherein, the specific implementation of step 802~805 is same as the prior art, repeats no more here；

Perform step 804~805 purpose be：SCF nodes obtain RC-proxy application layer IP address, and establish application Layer connection, such case are applied between SCF nodes and RC-Proxy using the situation of the application layer protocols such as diameter agreements, In other words, the situation for performing step 804~805 is applicable to using the upper-layer protocols such as diameter agreements, and unknown RC- The situation of proxy application layer IP address.If, can be with using RELOAD agreements between SCF nodes and RC-Proxy Do not perform step 804~805；

When SCF nodes send message to RC-proxy first in calling procedure, just need to perform step 801~805；Connection After foundation, when SCF nodes subsequently send message to RC-proxy, then step 801~805 need not be performed, directly can be to RC- Proxy sends message.

Step 806：After SCF nodes receive AppAttachAns message, send application layer business information to RC-proxy and disappear Breath；

The application layer business information refers to：Application layer SDP information or application layer QoS information；Here, the application layer industry Information of being engaged in is that application layer SDP information is still that application layer QoS information is determined by the deployment of the function of AF entities, specifically, if The function distributing of AF entities is on SCF nodes, then application layer SDP information is mapped to application layer QoS information by SCF nodes, concurrently Give RC-proxy, if the function distributing of AF entities on RC-Proxy, application layer that SCF nodes are sent to RC-proxy Business information is application layer SDP information, and after RC-proxy receives application layer SDP information, application layer SDP information is mapped into application Layer QoS information；Wherein, the specific mapping mode of application layer SDP information and application layer QoS information is prior art；

Step 807~808：After RC-proxy receives application layer business information message, PCE address information is obtained；Afterwards Application layer QoS request message is sent to PCE；

The PCE sends application layer QoS request message, is specially：

If the function distributing of AF entities, on RC-proxy, the application layer business information that RC-proxy is received is application Application layer SDP information is mapped to application layer QoS information, afterwards carries application layer QoS information by layer SDP information, RC-proxy PCE is sent in application layer QoS request；

If the function distributing of AF entities, on SCF, the application layer business information that RC-proxy is received is application layer QoS Message, RC-proxy will directly be carried in application layer QoS request and be sent to PCE；

Here, RC-proxy is carried in diameter message to the application layer QoS request that PCE is sent, described Diameter message packages QoS information containing application layer, session-ID the and RC-proxy address informations of diameter sessions Deng；

After RC-proxy inquires PCE address information, the session identification of session and PCE address letter between SR can be preserved The binding relationship of breath.

Step 809：After PCE receives application layer QoS request message, storage service information, returned to RC-proxy Diameter confirmation messages；

Diameter confirmation messages described here include the information such as session-ID and user's mark.

Step 810~811：After RC-proxy receives Diameter confirmation messages, according to the hash values of user's mark, use DHT algorithms inquired about from P2P networks corresponding to SCF addresss of node information, it is rear to SCF nodes send confirmation message；

Here, the session identification of session between the SR is carried in the confirmation message sent to SCF nodes.

Step 812：When PCE is needed to RC-proxy reported events, PCE sends Diameter reporting events to RC-proxy Message；

Step 813~814：After RC-proxy receives Diameter reporting events message, according to user identify hash values, SCF addresss of node information corresponding to being inquired about using DHT algorithms from P2P networks, rear send reporting events to SCF nodes and disappear Breath；

Here, carried in the reporting events message sent to SCF nodes the session identification of session between the SR, with And notification event.

Step 815：After SCF nodes receive reporting events message, confirmation message is sent to RC-proxy；

Step 816~817：After RC-proxy receives confirmation message, inquired about according to the session identification of session between SR, inquiry The binding relationship being locally stored, obtain PCE address information, it is rear to PCE send confirmation message.

To realize the above method, present invention also offers the system that implementation strategy in a kind of P2P networks controls, such as Fig. 9 institutes Show, the system includes：First SCF nodes 91, RC-proxy 92 and PCE 93；Wherein,

First SCF nodes 91, in calling procedure, application layer business information message to be sent to RC-proxy 92；With/ Or, receive the policy control related news that RC-proxy 92 is sent；

RC-proxy 92, for receive the first SCF nodes 91 transmission application layer business information message after, obtain PCE 93 address information, and send application layer QoS request message to PCE 93；And/or receive the Diameter that PCE 93 is sent and disappear After breath, SCF addresss of node information corresponding to acquisition, and control related news to the sending strategy of the first SCF nodes 91；

PCE 93, for receiving the application layer QoS request message of the transmissions of RC-proxy 92；And/or to RC-proxy 92 Send Diameter message.

Wherein, the first SCF nodes 91, when being additionally operable in calling procedure send message to the RC-proxy first, RC-proxy 92 address information is obtained, and establishes and connects with RC-proxy 92；

The RC-proxy 92, it is additionally operable to establish connection with the first SCF nodes 91.

When between RC-proxy 92 and the first SCF nodes 91 transmit application layer QoS request message and policy control it is related believe Agreement is not RELOAD agreements used by breath, when establishing connection with RC-proxy 92, the first SCF nodes 91, is also used It is connected in establishing application layer with RC-proxy 92；

The RC-proxy 92, is additionally operable to establish application layer with the first SCF nodes 91 and is connected.

The system can further include the 2nd SCF nodes, be the backup SCF nodes of the first SCF nodes 91, for connecing Receive the policy control related news that RC-proxy 92 is sent；

The first SCF sections have been stored in advance in SCF addresss of node information corresponding to acquisition, and when RC-proxy 92 is local During the address information of point 91, if after RC-proxy knows the failure of the first SCF nodes 91, the RC-proxy 92, root is additionally operable to The 2nd SCF addresss of node information is inquired about from P2P networks according to DHT algorithms, by the address information of the first SCF nodes 91 of storage The 2nd SCF addresss of node information is updated to, and related news are controlled to the 2nd SCF nodes sending strategy.

Before related news are controlled to the 2nd SCF nodes sending strategy, the RC-proxy 92, it is additionally operable to and second SCF nodes establish connection；

The 2nd SCF nodes, it is additionally operable to establish connection with RC-proxy 92.

The system can further include：3rd SCF nodes, it is the target SCF nodes of Data Migration, receives RC- The policy control related news that proxy 92 is sent；

Corresponding SCF addresss of node information has been stored in advance when RC-proxy 92 is local, and RC-proxy92 is determined When data corresponding to the policy control related news received have migrated, the first SCF nodes, it is additionally operable to RC-proxy 92 return to error response message；

The RC-proxy 92, it is additionally operable to after receiving the error response message that the first SCF nodes return, according to DHT algorithms The 3rd SCF addresss of node are inquired about from P2P networks, the address information of the first SCF nodes 91 corresponding to storage is updated to 3rd SCF addresss of node information, and control related news to the 3rd SCF nodes sending strategy.

Before related news are controlled to the 3rd SCF nodes sending strategy, the RC-proxy 92, it is additionally operable to and the 3rd SCF nodes establish connection.

The 3rd SCF nodes, it is additionally operable to establish connection with RC-proxy 92.

Here, the first SCF nodes in system of the present invention and RC-proxy concrete processing procedure is hereinbefore It is described in detail, repeats no more.

To realize the above method, present invention also offers the RC-proxy that implementation strategy in a kind of P2P networks controls, and such as schemes Shown in 10, the RC-proxy includes：Acquisition module 101 and sending module 102；Wherein,

Acquisition module 101, for receive SCF nodes transmission application layer business information message after, obtain PCE address letter Breath, and the PCE of acquisition address information is sent to sending module 102；And/or receive the Diameter message of PCE transmissions Afterwards, SCF addresss of node information corresponding to acquisition, and the SCF addresss of node information of acquisition is sent to sending module 102；

Sending module 102, for receive acquisition module 101 transmission PCE address information after, to PCE send application layer QoS request message；And/or after receiving the SCF addresss of node information of the transmission of acquisition module 101, to SCF node sending strategys Control related news.

Wherein, when obtaining PCE address information, the acquisition module 101, it is specifically used for：Inquired about to DRA, obtain PCE Address information；Or PCE address information is obtained from the configuration of local carrier policy；Or from locally prestoring PCE address information is obtained in address information.

In SCF addresss of node information corresponding to acquisition, the acquisition module 101, it is specifically used for：When local is advance Corresponding to storage during the information of SCF addresss of node, directly from SCF addresss of node information corresponding to local obtain；When it is local not Corresponding to storage during the information of SCF addresss of node, inquired about according to DHT algorithms from P2P networks corresponding to SCF addresss of node letter Breath.

Corresponding SCF addresss of node letter has been stored in advance in SCF addresss of node information corresponding to acquisition, and when local During breath, and after SCF node failures corresponding to knowing, the acquisition module 101, it is additionally operable to according to DHT algorithms from P2P networks The backup SCF addresss of node information of the SCF nodes of failure is inquired about, by the SCF addresss of node information updating of the failure of storage For the backup SCF addresss of node information, and the backup SCF addresss of node information is sent to sending module 102；

The sending module 102, after the address information for the backup node for being additionally operable to receive the transmission of acquisition module 101, Related news are controlled to the backup SCF nodes sending strategy.

Corresponding SCF addresss of node information has been stored in advance when local, and the policy control correlation for determining to receive disappears When data have migrated corresponding to breath, the acquisition module 101, it is additionally operable to inquire about data from P2P networks according to DHT algorithms The target SCF addresss of node moved to, it is that the Data Migration arrives by the corresponding SCF addresss of node information updating of storage Target SCF address of node information and by the Data Migration to target SCF addresss of node information be sent to transmission mould Block 102；

The sending module 102, be additionally operable to receive the Data Migration of the transmission of acquisition module 101 to target SCF sections After the address information of point, the target SCF nodes sending strategy arrived to the Data Migration controls related news.

When transmitting application layer QoS request message and strategy between RC-proxy and SCF nodes and between RC-proxy and PCE Used by control relevant information during agreement difference, the sending module 102, the application layer QoS request for being additionally operable to receive disappears Breath, and/or policy control related information carry out protocol conversion process, and the application layer QoS request after protocol conversion process is disappeared Breath and/or policy control related information are sent respectively to PCE and/or SCF nodes；

The RC-proxy can further include memory module, for storing PCE address information, and/or SCF nodes Address information.

The RC-proxy can further include：Link block is established, is connected for being established with SCF nodes.

The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.

Claims

1. a kind of method that implementation strategy controls in reciprocity P2P networks, it is characterised in that this method includes：

After resource control proxy RC-proxy receives the Diameter message of policy control entity PCE transmissions, industry corresponding to acquisition Be engaged in control function SCF addresss of node information, the backward SCF nodes sending strategy control related news；Or, calling procedure In, after RC-proxy receives the application layer business information message that the SCF nodes in P2P networks are sent, obtain PCE address letter Breath, it is rear to PCE send application layer services quality Q oS seek message；The RC-proxy receives the Diameter that the PCE is sent After message, SCF addresss of node information corresponding to acquisition, backward SCF nodes sending strategy control related news；Wherein,

SCF addresss of node information corresponding to the acquisition, including：

It is directly corresponding from local acquisition when the RC-proxy is local has stored corresponding SCF addresss of node information in advance SCF addresss of node information；

When the RC-proxy does not locally store corresponding SCF addresss of node information, according to DHT algorithms from P2P networks SCF addresss of node information corresponding to inquiry.

2. according to the method for claim 1, it is characterised in that this method further comprises：

When SCF nodes described in calling procedure sends message to the RC-proxy first, the SCF nodes obtain the RC- Proxy address information, establish connect with the RC-proxy afterwards.

3. according to the method for claim 2, it is characterised in that the address information for obtaining the RC-proxy, be：

When the SCF nodes add P2P networks, registration server is by the configuration file of the address information comprising the RC-proxy It is handed down to SCF nodes；Or

The SCF nodes are inquired about from the tracking server in P2P networks, obtain the address information of the RC-proxy；Or

The SCF nodes obtain the address information of the RC-proxy by distributed hashtable DHT algorithms.

4. according to the method for claim 3, it is characterised in that the address information of the RC-proxy is：IP address or For domain name or it is node Node numberings ID.

5. according to the method for claim 1, it is characterised in that the address information of the PCE in the acquisition P2P networks, be：

The RC-proxy inquires about to Diameter route agents DRA, obtains the address information of the PCE；Or

6. according to the method for claim 1, it is characterised in that when between the RC-proxy and the SCF nodes and The agreement that transmission application layer QoS request message and policy control related information use between the RC-proxy and the PCE is not Meanwhile before application layer QoS request message is sent to PCE, this method further comprises：

7. according to the method for claim 1, it is characterised in that this method further comprises：

If the function distributing of application function AF entities, on the SCF nodes, application layer conversation is described to assist by the SCF nodes View SDP information is mapped to application layer QoS information, rear sent to the RC-proxy include the application layer of application layer QoS information Business information message；

If the function distributing of AF entities, on the RC-Proxy, the RC-proxy disappears the application layer business information received Application layer SDP information in breath is mapped to application layer QoS information.

8. according to the method for claim 7, it is characterised in that in SCF addresss of node information corresponding to acquisition, and work as institute Corresponding to stating that RC-proxy is local and having stored in advance during the information of SCF addresss of node, the RC-proxy know corresponding to SCF sections After point failure, this method further comprises：

The backup SCF addresss of node information of the SCF nodes of failure is inquired about from P2P networks according to DHT algorithms, by the mistake of storage The SCF addresss of node information updating of effect is the backup SCF addresss of node information, the backward backup SCF nodes send out Send policy control related news.

9. according to the method for claim 8, it is characterised in that related being controlled to the backup SCF nodes sending strategy Before message, this method further comprises：

The RC-proxy is established with the backup SCF nodes and connected.

10. according to the method for claim 1, it is characterised in that stored corresponding SCF sections in advance when RC-proxy is local The address information of point, and when data corresponding to the RC-proxy policy control related news determining to receive have migrated, should Method further comprises：

The SCF nodes return to error response message to the RC-proxy；

After the RC-proxy receives error response message, inquired about according to DHT algorithms from P2P networks Data Migration to target SCF addresss of node, it is that the target SCF that the Data Migration arrives is saved by the corresponding SCF addresss of node information updating of storage The address information of point, the target SCF nodes sending strategy that arrives of the backward Data Migration control related news.

11. according to the method for claim 10, it is characterised in that in the target SCF nodes transmission to the Data Migration Before policy control related news, this method further comprises：

12. the resource control proxy that implementation strategy controls in a kind of P2P networks, it is characterised in that the resource control proxy includes： Acquisition module and sending module；Wherein,

Acquisition module, for receive PCE transmission Diameter message after, SCF addresss of node information corresponding to acquisition, and will The SCF addresss of node information of acquisition is sent to sending module；

Or, after the application layer business information message for receiving the transmission of SCF nodes, obtain PCE address information, and by acquisition PCE address information is sent to sending module；After the Diameter message for receiving PCE transmissions, the ground of SCF nodes corresponding to acquisition Location information, and the SCF addresss of node information of acquisition is sent to sending module；

Sending module, for receive acquisition module transmission SCF addresss of node information after, to SCF nodes sending strategy control Related news；

Or, after the address information of the PCE for receiving acquisition module transmission, application layer QoS request message is sent to PCE；Receive After the SCF addresss of node information that acquisition module is sent, related news are controlled to SCF nodes sending strategy；Wherein,

The sending module, specifically for when it is local stored in advance corresponding to SCF addresss of node information when, directly from this SCF addresss of node information corresponding to ground acquisition；When not storing corresponding SCF addresss of node information locally, calculated according to DHT Method inquired about from P2P networks corresponding to SCF addresss of node information.

13. resource control proxy according to claim 12, it is characterised in that described when obtaining PCE address information Acquisition module, it is specifically used for：Inquired about to DRA, obtain PCE address information；Or obtained from the configuration of local carrier policy PCE address information；Or PCE address information is obtained from the address information locally prestored.

14. resource control proxy according to claim 12, it is characterised in that in SCF addresss of node corresponding to acquisition Information, and when locally having stored corresponding SCF addresss of node information in advance, and after SCF node failures corresponding to knowing, The acquisition module, it is additionally operable to inquire about the backup SCF addresss of node of the SCF nodes of failure from P2P networks according to DHT algorithms Information, it is the backup SCF addresss of node information by the SCF addresss of node information updating of the failure of storage, and by described in Backup SCF addresss of node information is sent to sending module；

The sending module, after the address information for the backup node for being additionally operable to receive acquisition module transmission, to the backup SCF nodes sending strategy controls related news.

15. resource control proxy according to claim 12, it is characterised in that when local has stored corresponding SCF in advance Address of node information, and when data corresponding to the policy control related news for determining to receive have migrated, the acquisition Module, be additionally operable to be inquired about from P2P networks according to DHT algorithms Data Migration to target SCF addresss of node, by pair of storage The SCF addresss of node information updating answered is the target SCF address of node information that arrives of the Data Migration and by the data The target SCF addresss of node information moved to is sent to sending module；

The sending module, be additionally operable to receive the Data Migration of acquisition module transmission to target SCF addresss of node letter After breath, the target SCF nodes sending strategy arrived to the Data Migration controls related news.

16. according to the resource control proxy described in any one of claim 12 to 15, it is characterised in that as RC-proxy and SCF Assisted used by application layer QoS request message and policy control related information are transmitted between node and between RC-proxy and PCE When discussing different, the sending module, is additionally operable to the application layer QoS request message that will receive, and/or policy control related information is entered Row protocol conversion process, and the application layer QoS request message after protocol conversion process, and/or policy control related information are divided PCE and/or SCF nodes are not sent to.

17. according to the resource control proxy described in any one of claim 12 to 15, it is characterised in that the resource control proxy enters One step includes：Memory module, for storing PCE address information, and/or SCF addresss of node information.

18. according to the resource control proxy described in any one of claim 12 to 15, it is characterised in that the resource control proxy enters One step includes：Link block is established, is connected for being established with SCF nodes.

19. the system that implementation strategy controls in a kind of P2P networks, it is characterised in that the system includes：First SCF nodes, RC- Proxy and PCE；Wherein,

First SCF nodes, receive the policy control related news that RC-proxy is sent；

RC-proxy, for receive PCE transmission Diameter message after, SCF addresss of node information corresponding to acquisition, and to First SCF nodes sending strategy controls related news；

Or, after the application layer business information message for receiving the transmission of the first SCF nodes, obtain PCE address information, and to PCE sends application layer QoS request message；After the Diameter message for receiving PCE transmissions, SCF addresss of node corresponding to acquisition Information, and control related news to the first SCF nodes sending strategy；

PCE, for sending Diameter message to RC-proxy；Wherein,

RC-proxy, specifically for it is local stored in advance corresponding to SCF addresss of node information when, directly obtained pair from local The SCF addresss of node information answered；

Corresponding to do not store locally during the information of SCF addresss of node, inquired about according to DHT algorithms from P2P networks corresponding to SCF Address of node information.

20. system according to claim 19, it is characterised in that

The first SCF nodes, when being additionally operable in calling procedure send message to the RC-proxy first, obtain RC-proxy Address information, and with RC-proxy establish connect；

21. the system according to claim 19 or 20, it is characterised in that the system further comprises the 2nd SCF nodes, is The backup SCF nodes of first SCF nodes, for receiving the policy control related news of RC-proxy transmissions；

In SCF addresss of node information corresponding to acquisition, and when RC-proxy has locally stored the first SCF addresss of node in advance Information, after RC-proxy knows the first SCF node failures, the RC-proxy, it is additionally operable to according to DHT algorithms from P2P networks The 2nd SCF addresss of node information is inquired about, by the ground that the first SCF addresss of node information updating of storage is the 2nd SCF nodes Location information, and control related news to the 2nd SCF nodes sending strategy.

22. system according to claim 21, it is characterised in that

The RC-proxy, it is additionally operable to establish connection with the 2nd SCF nodes；

23. the system according to claim 19 or 20, it is characterised in that the system further comprises：3rd SCF nodes, For receiving the policy control related news of RC-proxy transmissions；

When RC-proxy is local stored in advance corresponding to SCF addresss of node information, and RC-proxy determines the plan that receives When slightly data corresponding to control related news have migrated, the first SCF nodes, it is additionally operable to return to mistake to RC-proxy Response message；

The RC-proxy, after the error response message for being additionally operable to receive the return of the first SCF nodes, according to DHT algorithms from P2P nets The 3rd SCF addresss of node are inquired about in network, the first SCF addresss of node information updating corresponding to storage is saved for the 3rd SCF The address information of point, and control related news to the 3rd SCF nodes sending strategy.

24. system according to claim 23, it is characterised in that

The RC-proxy, it is additionally operable to establish connection with the 3rd SCF nodes；