CN103796246A - Data distribution method, data distribution device and data distribution system - Google Patents
Data distribution method, data distribution device and data distribution system Download PDFInfo
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Abstract
The invention discloses a data distribution method, a data distribution device and a data distribution system. The system comprises a wireless gateway used for providing access of a wireless network for user equipment, and a piece of routing equipment used for determining a forwarding path of a data application service flow according to the different types of application services accessed through the wireless gateway and requested by the UE, and forwarding the data application service flow. By the adoption of the data distribution method, the data distribution device and the data distribution system of the invention, the problem that a lot of backbone line transmission network resources of mobile operators are consumed as service data is usually forwarded through a mobile cellular network during transmission is solved, a lot of backbone line transmission network resources passing through mobile operators are saved, the data distribution method is optimized, and the performance of the system is improved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of shunt method, Apparatus and system of data.
Background technology
Along with the development of wireless communication technology, multiple wireless access technology is also deposited, and especially cellular technology and WLAN technology becomes the wireless access technology of current main flow.Third generation mobile partner plans (3rd Generation partnership project, referred to as 3GPP) normal structure is in the 4G stage, define evolution packet switching center (Evolved Packet Core, referred to as EPC) network, can be by WLAN (wireless local area network) (Wireless Local Area Network, referred to as WLAN) be linked into EPC network, also can access the wireless network of 2/3G/ Long Term Evolution (Long-Term Evolution, referred to as LTE) simultaneously.
For operator's non-3GPP network trusty, can directly pass through S2a interface accessing group data network gateway (Packet Data Network Gateway, referred to as PDN-GW), for the fly-by-night non-3GPP network of operator, can access a security gateway, then security gateway is again by S2b interface access PDN-GW.Operator wishes that user unifies access by mobile core network, it is the self-operation mobile Internet data business in order to facilitate user's access operator, because self-operated business network can not need user additionally to input identify label, directly use the identify label of network side indication to get final product authenticated user, provide data service in the mode of safety as mobile subscriber.
The problem existing is, when operator provides the data connection access from WLAN to cellular network for mobile subscriber, it is all the ggsn (Gateway General Packet Radio Service Supporting Node, referred to as GGSN) at PDN-GW or the 2/3G network of EPC network by user data session holdfast.And the no network data application of user need to be used different APNs (Access Point Name, referred to as APN) title, use independent data to connect, be linked into the core net of cellular network from wlan network, and then the application network of access appointment.In the time that user need to access the application of A network data, just can not use the market demand of B network, otherwise, need to disconnect current data and connect, again adopt the APN of B network again to carry out data connection by WLAN, could access the market demand of B network.
In fact, user, in the time of usage data business, can use by same APN the market demand of multiple application networks simultaneously.As a lot of cloud application, it is all different private networks, a user can be simultaneously by the cloud application of the multiple private network of mobile phone access, and this just needs WLAN IAD can distinguish data user's applied business stream, and selects different private service network egresses to forward.The self-operated business that need to access for user like this and privately owned cloud network, the PDN-GW/GGSN that has passed through mobile cellular network forwards, but these Business Streams comprise a large amount of third party's mobile Internet businesss, these business also all forward by the gateway PDN-GW/GGSN of mobile cellular network, have just expended a large amount of backbone transport network resource of mobile operator.Third party's mobile Internet data business of mobile subscriber can unload shunting by the wlan network access node nearby, can save backbone transport networks resource, further utilize near the tandem transmission network resource of access point, shunting mobile subscriber's data service forwards from local routing outlet simultaneously.But current WLAN application model, is all that mobile user data business is according to the gateway of the different APN access cellular network of different application choices; And this part business directly can not be shunted from WLAN IAD for third party's mobile Internet business.
Summary of the invention
The invention provides a kind of shunt method, Apparatus and system of data, at least to solve in correlation technique, the Business Stream of transmission comprises a large amount of third party's mobile Internet businesss, these business also all forward by mobile cellular network, have just expended the problem of a large amount of key circuit transport network resources of mobile operator.
According to an aspect of the present invention, provide a kind of separate system of data, having comprised: radio network gateway, for the access of wireless network is provided to subscriber equipment; Routing device, for the forward-path flowing according to the dissimilar specified data applied business of the applied business of the UE request accessing by described radio network gateway, and forwards described market demand Business Stream.
Preferably, described forward-path comprise following one of at least; Forward by Cellular Networks network, forward by Internet.
Preferably, described Cellular Networks network comprises: PDN-GW/GGSN.
Preferably, described Internet comprises: internet gateway, with described routing device coupling, is used to described system to put forward the Internet shunt paths; Private service net gateway, with described routing device coupling, is used to described system that private service shunt paths is provided.
Preferably, described system also comprises: Online Charging System (Online Charging System, referred to as OCS), with described routing device coupling, is used to the data service that far-end forwards to carry out online charging function; Off-line accounting system (Offline Charging System, referred to as OFCS), with described routing device coupling, is used to the data service that far-end forwards to carry out offline charging function.
Preferably, described system also comprises: strategic server, with described routing device coupling, is used to described OFCS and described OCS that charging policy is provided.
Preferably, described radio network gateway is Cellular Networks network gateway, and described routing device is Cellular Networks network shunting gateway, and wherein, described Cellular Networks Network shunting gateway comprises PDN-GW/GGSN.
Preferably, described radio network gateway is WLAN (wireless local area network) WLAN gateway, and described routing device is wlan network service distributing gateway (WLAN Offload Gateway, referred to as WOG).
According to another aspect of the present invention, a kind of shunt method of data is provided, comprise: the type of service that flows corresponding applied business according to current data applied business is determined the forward-path of described market demand Business Stream, wherein, described applied business is the applied business of the user equipment requests that accesses by radio network gateway; On described forward-path, forward described market demand Business Stream.
Preferably, the type of service that flows corresponding applied business according to current data applied business also comprises before determining the forward-path of described market demand Business Stream: be that subscriber equipment is set up and the tunnel of PDN-GW/GGSN UNICOM; Send to described subscriber equipment the IP address that GGSN is described user equipment allocation described in described PDN-GW/, wherein, described IP address is associated with wireless data session.
Preferably, after the IP address that is described user equipment allocation to GGSN described in described subscriber equipment sends described PDN-GW/, also comprise: be the IP address of a local configuration of described user equipment allocation, wherein, the IP address of described local configuration is associated with described wireless data session.
Preferably, flow the type of service of corresponding applied business according to current data applied business and determine that the forward-path of described market demand Business Stream comprises: wlan network service distributing gateway WOG to described market demand Business Stream carry out deep message detection take the type of service that judges described applied business whether as the business of Cellular Networks network, wherein, described WOG shunts and/or route for the described market demand Business Stream that the subscriber equipment of access wlan network is sent; If so, described market demand Business Stream is forwarded by Cellular Networks network; If not, described market demand Business Stream is forwarded by Internet.
Preferably, described market demand Business Stream is forwarded and comprised by Internet: judge whether described market demand Business Stream is third party's private internet business; If so, described market demand Business Stream is forwarded by described third party's private internet network; If not, described market demand Business Stream is forwarded by described third party's mobile Internet network.
Preferably, the type of service that flows corresponding applied business according to current data applied business determines that the forward-path of described market demand Business Stream comprises: described in described PDN-GW/, GGSN judges whether the type of service of described applied business is the business of Cellular Networks network; If so, described market demand Business Stream is forwarded by Cellular Networks network; If not, described market demand Business Stream is forwarded by Internet.
Preferably, forward described market demand Business Stream on described forward-path after, also comprise: obtain corresponding charging policy according to described forward-path; The described market demand Business Stream described subscriber equipment being forwarded according to described charging policy carries out charging.
According to a further aspect of the invention, a kind of part flow arrangement of data is provided, comprise: determination module, determine the forward-path of described market demand Business Stream for flow the type of service of corresponding applied business according to current data applied business, wherein, described applied business is the applied business of the user equipment requests that accesses by radio network gateway; Forwarding module, for forwarding described market demand Business Stream on described forward-path.
Preferably, described device also comprises: set up module, be used to the tunnel of subscriber equipment foundation and grouped data network gateway PDN-GW/ ggsn GGSN UNICOM; Sending module, for send the IP address that GGSN is described user equipment allocation described in described PDN-GW/ to described subscriber equipment, wherein, described IP address is associated with wireless data session.
Preferably, described device also comprises: distribution module, be used to local IP address configuring of described user equipment allocation, and wherein, the IP address of described local configuration is associated with described wireless data session.
The present invention has the routing device of the shunting of can realizing and routing function in the separate system of data, there is the system energy perception user's of this equipment applied business type, according to applied business type, the forward-path of determination data applied business stream, solve in the time that business datum is transmitted, generally can forward by mobile cellular network, just expend the problem of a large amount of key circuit transport network resources of mobile operator, and then reduce by a large amount of key circuit transport network resources of mobile operator, optimize data distribution method, promote the performance of system.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the structural representation of the separate system of the data of the embodiment of the present invention;
Fig. 2 is according to the flow chart of the shunt method of the data of the embodiment of the present invention;
Fig. 3 is the structured flowchart one according to the part flow arrangement of the data of the embodiment of the present invention;
Fig. 4 is the structured flowchart two according to the part flow arrangement of the data of the embodiment of the present invention;
Fig. 5 is the system architecture schematic diagram that comprises WOG according to the preferred embodiment of the present invention one;
Fig. 6 is the ePDG system architecture schematic diagram according to correlation technique;
Fig. 7 is the user's multiple data stream shunting scene graph according to the preferred embodiment of the present invention two;
Fig. 8 is according to the flow chart of the data distribution of the preferred embodiment of the present invention three;
Fig. 9 is according to the flow chart of the different business Flow Policy route of this locality shunting of the preferred embodiment of the present invention four;
Figure 10 is the flow chart that obtains according to the distributing strategy of the WOG of the preferred embodiment of the present invention five and Business Stream strategy routing policy;
Figure 11 is the flow chart that obtains according to the distributing strategy of the PDN-GW/GGSN of preferred embodiment of the present invention stream and Business Stream strategy routing policy.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.
For current mobile operator, third party's mobile Internet data business of mobile subscriber can unload shunting by the wlan network access node nearby, can save backbone transport networks resource, further utilize near the tandem transmission network resource of access point, shunting mobile subscriber's data service forwards from local routing outlet simultaneously.Simultaneously, mobile cellular net only need to forward operator's characteristic data service flow on one's own account or other third party partners' that must arrive through operator's cellular core network business network flow, as having the cell phone social networks of unique cooperative relationship with operator.But current WLAN application model, is all that mobile user data business is according to the gateway of the different APN access cellular network of different application choices; And this part business directly can not be shunted from WLAN IAD for third party's mobile Internet business.
The embodiment of the present invention, for the problems referred to above, provides a kind of separate system of data, and the structural representation of this system as shown in Figure 1, comprising:
Routing device 2, for the forward-path flowing according to the dissimilar specified data applied business of the applied business of the UE request accessing by radio network gateway, and forwards data applied business stream.
The embodiment of the present invention has the routing device of the shunting of can realizing and routing function in the separate system of data, there is the system energy perception user's of this equipment applied business type, according to applied business type, the forward-path of determination data applied business stream, solve in the time that business datum is transmitted, generally can forward by mobile cellular network, just expend the problem of a large amount of key circuit transport network resources of mobile operator, and then reduce by a large amount of key circuit transport network resources of mobile operator, optimize data distribution method, promote the performance of system.
In implementation process, radio network gateway and routing device can be divided into multiple, for example, radio network gateway can be Cellular Networks network gateway, corresponding, and routing device is Cellular Networks network shunting gateway, wherein, Cellular Networks Network shunting gateway can be PDN-GW/GGSN; Or radio network gateway can also be WLAN gateway, routing device is WOG.
Can also be WLAN gateway below in conjunction with radio network gateway, routing device be that WOG describes, and WLAN gateway, for providing the access of WLAN to subscriber equipment; WOG, with the coupling of WLAN gateway, for the forward-path flowing according to the dissimilar specified data applied business of the applied business of the UE request by WLAN gateway accessing, and forwards data applied business stream.
The present embodiment has increased the WOG network element that can realize diverter function in the separate system of data, replace packet data gateway (the Evolved Packet Data Gateway of original evolution, referred to as ePDG), increase the system of this WOG, energy perception user's applied business type, according to applied business type, determine the gateway forwards of which market demand Business Stream from Cellular Networks network, which market demand Business Stream directly forwards from WLAN gateway, solve in the time that business datum is transmitted, generally can forward by mobile cellular network, just expend the problem of a large amount of key circuit transport network resources of mobile operator, and then reduce by a large amount of key circuit transport network resources of mobile operator, optimize data distribution method, promote the performance of system.
Forward-path can comprise two kinds conventionally, and one is to forward by Cellular Networks network, and one is to forward by Internet.Wherein, Cellular Networks network can be GPRS (General Packet Radio Service, referred to as GPRS), universal mobile telecommunications system (Universal Mobile Telecommunications System, referred to as UMTS), CDMA 2000 system (Code Division Multiple Access 2000, referred to as CDMA 2000), or any one in LTE wireless cellular network, in its structure, can comprise: PDN-GW/GGSN.Internet can comprise: internet gateway, with WOG coupling, is used to system to put forward the Internet shunt paths; Private service net gateway, with WOG coupling, is used to system that private service shunt paths is provided.Native system introduced internet gateway as path to carry out the forwarding of market demand Business Stream, can further reduce from Cellular Networks network backbone circuit transport network resources.
The separate system of the present embodiment data, also comprises: OCS, with WOG coupling, is used to the data service that far-end forwards to carry out online charging function; OFCS, with WOG coupling, is used to the data service that far-end forwards to carry out offline charging function; Strategic server, with WOG coupling, is used to OFCS and OCS that charging policy is provided.The increase of said apparatus, can so that subscriber equipment in shunting convenient, charging accurately when forwarding data,
The embodiment of the present invention also provides a kind of shunt method of data, and the flow process of the method as shown in Figure 2, comprises that step S202 is to step S204.
Step S202, flows the forward-path of the type of service specified data applied business stream of corresponding applied business according to current data applied business, wherein, applied business is by the applied business of the user equipment requests of WLAN gateway accessing;
Step S204, forwarding data applied business stream on forward-path.
By the method for using above-described embodiment to record, can solve in the time that business datum is transmitted, generally can forward by mobile cellular network, just expend the problem of a large amount of key circuit transport network resources of mobile operator, and then reduce by a large amount of key circuit transport network resources of mobile operator, optimize data distribution method, promoted the performance of system.
Actuating equipment in the present embodiment can be the WOG introducing in above-described embodiment, can be also the equipment with it with identical diverter function.Above-mentioned WOG energy perception user's applied business type, according to applied business type, determines the gateway forwards of which data traffic flow from Cellular Networks network, and which market demand Business Stream directly forwards from WLAN gateway simultaneously.And, for the self-operated business of mobile operator, and third party's business of mobile Internet, intelligent access device WOG can further determine the forward-path of user traffic flow, guarantees that mobile subscriber's data traffic flow is correctly forwarded to the business network of appointment from optimum bearer network.
In the process of the shunt method of the data of the present embodiment, flow the forward-path of type of service specified data applied business stream of corresponding applied business according to current data applied business before, can also carry out deep message detection to judge the type of service of applied business to data applied business stream.For example, function (the Deep Packet Inspection detecting by deep message, referred to as DPI) deep message detects to judge that current data applied business flows the type of corresponding applied business, and then judges the forward-path of this market demand Business Stream according to type.
Before execution step S202, can also carry out relevant link setup operation, for example, be subscriber equipment foundation and the tunnel of PDN-GW/GGSN UNICOM; Then, send to subscriber equipment the IP address that PDN-GW/GGSN is user equipment allocation, wherein, IP address is associated with WLAN data session; Afterwards, can also be the IP address of a local configuration of user equipment allocation, wherein, the IP address of local configuration is associated with WLAN data session.
In implementation process, different forward-path corresponding to gateway.
In the time that subscriber equipment accesses by wlan network and then carries out transfer of data, the forward-path that flows the type of service specified data applied business stream of corresponding applied business according to current data applied business comprise following process: WOG to data applied business stream carry out deep message detection take the type of service that judges applied business whether as the business of Cellular Networks network, wherein, WOG shunts and/or route for the market demand Business Stream that the subscriber equipment of access wlan network is sent.
If the type of service of applied business is the business of Cellular Networks network, market demand Business Stream is forwarded by Cellular Networks network; If not the business of Cellular Networks network, market demand Business Stream is forwarded by Internet.For example,, if specified data applied business stream is third party's private internet business; Market demand Business Stream is forwarded by third party's private internet network; If specified data applied business stream, for third party's mobile Internet business, can forward market demand Business Stream by third party's mobile Internet network.
If in the time that subscriber equipment is accessed and then carried out transfer of data by Cellular Networks network (being normal mobile communications network), the forward-path that flows the type of service specified data applied business stream of corresponding applied business according to current data applied business can comprise following processing procedure:
PDN-GW/GGSN judges whether the type of service of applied business is the business of Cellular Networks network.If the business of Cellular Networks network sends market demand Business Stream at the Cellular Networks network of self; If not the business of Cellular Networks network, market demand Business Stream can be forwarded by Internet, for example, seemingly have Internet to forward by third party's mobile Internet network or third party, its repeating process under wlan network, forward by Internet similar.
When enforcement, on forward-path, after forwarding data applied business stream, need to carry out billing operation, can obtain corresponding charging policy according to forward-path; Obtaining after charging policy, market demand Business Stream subscriber equipment being forwarded according to charging policy carries out charging.This process has guaranteed the accurate charging of subscriber equipment in the time carrying out point flow forwarding of data, can not allow the user cause extra loss.
The embodiment of the present invention also provides a kind of part flow arrangement of data, and this device can be applied above-mentioned shunt method, can also be arranged in above-mentioned separate system.The structured flowchart of the part flow arrangement of these data as shown in Figure 3, comprise: determination module 10, the forward-path flowing for flow the type of service specified data applied business of corresponding applied business according to current data applied business, wherein, applied business is the applied business of the user equipment requests that accesses by radio network gateway; Forwarding module 20, is coupled with determination module 10, flows for forwarding data applied business on forward-path.
Said apparatus can also as shown in Figure 4, comprise: set up module 30, be used to the tunnel of subscriber equipment foundation and PDN-GW/GGSN UNICOM; Sending module 40, is coupled with setting up module 30, and for sending to subscriber equipment the IP address that PDN-GW/GGSN is user equipment allocation, wherein, IP address is associated with wireless data session; Distribution module 50, is coupled with sending module 40 and determination module 10, is used to the IP address of a local configuration of user equipment allocation, and wherein, the IP address of local configuration is associated with wireless data session.
Because said apparatus can be for carrying out said method, therefore, the module designing in said method implementation can be arranged in this device, repeats no more herein.
Below in conjunction with preferred embodiment and accompanying drawing, embodiments of the present invention are described.
Preferred embodiment one
What the present embodiment was described is the system architecture schematic diagram of WOG as shown in Figure 5, the ePDG system architecture schematic diagram that Fig. 6 is correlation technique.In native system Organization Chart, the basic framework of 3GPP network is constant, as global mobile communication (Global system for Mobile Communication, referred to as GSM) network, universal mobile telecommunications system (Universal Mobile Telecommunications System, referred to as UMTS) access architecture of network, LTE network is constant, the wlan network of non-3GPP is constant, unique variation is the framework of WLAN access cellular core network, increase WOG network element, replaced original ePDG network element.WLAN and WOG network element are by SWn interface inter-link, multiprotocol label switching (the Multi-Protocol Label Switching of SWn interface supporting layer two or layer three, referred to as MPLS), the tunnel protocols such as generic route encapsulation (Generic Routing Encapsulation, referred to as GRE).User terminal can adopt the IPsec tunnel protocol of IKEv2 be connected with WOG by SWu mouth, and WOG accesses PDN-GW/GGSN by S2x interface for user.
WOG network element is the interface channel that WLAN user is provided to PDN-GW/GGSN, is called S2x interface in Fig. 3, is convenient to user from WLAN access, the self-operated business of access mobile operator.The S2x interface of WOG supports PMIPv6 and GTP tunnel agreement to be connected to PDN-GW/GGSN.WOG network element connects by IP route or tunnel style connects the outlet of local private network and mobile Internet, for third party's mobile Internet business of user or privately owned data services network access provide local routing to forward.The interface that WOG connects mobile Internet and private service net is called Wo and Wv interface.
Further, the data service stream type that this framework can access from WLAN according to user, by with the static policies of the Gxo interactive interfacing of strategic server or local configuration, distinguishing which Business Stream of user forwards from existing PDN-GW/GGSN, which Business Stream is to forward from the outlet of local mobile Internet, or is forwarded to privately owned data service network is provided.WOG forwards user traffic flow process from cellular network PDN-GW/GGSN is called far-end and forwards.WOG forwards user traffic flow process from this locality is called local forwarding.By a part of this locality Business Stream, from internet, (Internet) forwards WOG, and another part Business Stream is from privately owned local service forwarded process, is called local service Flow Policy route.
The user data service that WOG forwards this locality, and billing function is carried out in the data service that far-end forwards.Billing function comprises online charging and two kinds of patterns of offline charging.WOG provides Wy interface to connect OCS, for user provides online charging.WOG provides Wz interface to connect OFCS, for user provides offline charging.The concrete charge mode of each user data session, WOG can obtain from strategic server by Gxo interface, certainly, also can configure by this locality.
When enforcement, for example terminal accesses after mobile cellular net by WLAN, user initiates the instant messaging of operator, WOG detects after this business so, by the static policies of strategic server or local configuration, determining that this business is forwarded to the PDN-GW/GGSN of existing network, is that the business that user is provided to data services network forwards by existing network PDN-GW/GGSN.In the time that user initiates third-party video traffic (Over The Top, referred to as OTT), as You Tube etc., such business does not need telecom operators that any business intervention is provided, and operator just thinks transmission pipeline, transport service flow.Now WOG detects this business, directly forwards these data flow from local mobile Internet outlet according to strategy.Above distributing strategy is to user's usage data business unaware, and the data service that can not affect user is used.
Preferred embodiment two
Fig. 7 is user's multiple data stream shunting scene graph of the present invention, and user accesses wlan network by mobile phone, and user data session is anchored on WOG by SWn tunnel.WOG can be the IP address of the local WLAN access of user assignment, and WOG obtains remote ip address by S2x interface from PDN-GW/GGSN simultaneously.The IP address obtaining from PDN-GW/GGSN is given user terminal by WOG, oneself is left the local ip address of user assignment.Now as shown in S701, user initiates Business Stream, S701 Business Stream arrives after WOG, and WOG is according to the local configuration of DPI Function detection customer service stream load or receive the business routing policy from strategic server from Gxo interface, directly user S701 work flow is issued to PDN-GW/GGSN.When S704 emphasizes that now user's message forwards by S2x interface tunnel, in tunnel, the source IP address of User IP message is that PDN-GW/GGSN distributes.
For Client-initiated S702 Business Stream, arrive after WOG, the strategy of the local shunting of WOG coupling and route dypass are to forward from Internet outlet, WOG by customer traffic according to the process of S705, the source IP address of User IP message is carried out to network address translation function (Network Address Translation, referred to as NAT) conversion, be converted to the local IP address for user assignment of WOG, then the message of having changed source IP address is sent to Internet outlet.For Client-initiated S703 Business Stream, WOG is local forwarding according to strategy matching, mate to local private service forwarded according to routing policy, the User IP message source IP address NAT that equally first WOG carries out S705 is converted to this locality and distributes to user's source IP address, after allowing by User IP message repeating to private service network egress.
WOG from strategy local and that far-end forwards, can be local configuration to user's WLAN Business Stream, can be also the strategy receiving.WOG is forwarded to the information of the Business Stream strategy route of Interent or private service network from this locality to user's WLAN Business Stream, can be local configuration, can be also the strategy receiving.For the strategy receiving, WOG gateway, by newly-increased Gxo interface, obtains from strategic server network element.
Preferred embodiment three
Fig. 8 is that user adopts single AP N to be linked into mobile cellular network and to set up the process of data session from WLAN, and its flow process comprises that step S801 is to step S813.
Step S801, user accesses from WLAN by terminal.
Step S802, user initiates the verification process of 802.1x, and wlan network forwards authentication message to WOG.
Step S803, WOG network element forwards authentication message to authentication, mandate and accounting server (Authentication Authorization and Accounting, referred to as AAA).The authentication of AAA completing user, issues the signing profile information of user to WOG, and WOG is transmitted to user terminal by the response message of success identity by WLAN.
Step S804, user terminal is successfully completed after authentication, initiates DHCP (Dynamic Host Configure Protocol, referred to as DHCP) request, obtains IP address.
Step S805, WOG, according to user's DHCP request, is triggered to the S2x interface Establishing process of PDN-GW/GGSN, for user sets up PMIPv6 or the gre tunneling of S2x.Note, the single AP N that now WOG carries user is to PDN-GW/GGSN, and single AP N can be carried by terminal from authentication request message, also can from DHCP request message, be carried by terminal.
Step S806, once the data tunnel of S2x interface is successfully set up, PDN-GW/GGSN issues the IP address into user assignment to WOG.WOG, as Dynamic Host Configuration Protocol server (Server), responds user's DHCP request message, and IP address strap PDN-GW/GGSN being distributed by dhcp response message is to user.
Step S807, WOG records the IP address that PDN-GW/GGSN is user assignment, and is the reallocate IP address of a local configuration of user simultaneously.Two IP addresses are all associated with user's WLAN data session.
Step S808, once obtain IP address, user initiates Business Stream 1, now WOG, according to the deep message measuring ability of DPI module, judges that user traffic flow is third party's mobile Internet business, according to distributing strategy, directly forwards from local Internet outlet.
Step S809, user traffic flow 1 is forwarded to local Internet network by WOG, and customer traffic is carried out to charging.
Step S810, user initiates Business Stream 2, WOG is according to the deep message measuring ability of DPI, judge that user traffic flow is third party's private service, need local forwarding, according to tactful routing table, judge that Business Stream is third party's private network, WOG is that user traffic flow selects the routing interface of local private network to forward simultaneously.
Step S811, user traffic flow 2 is forwarded to third party's private network by WOG, and user's stream is carried out to charging.
Step S812, user initiates Business Stream 3, and WOG, according to DPI deep message measuring ability, judges that user traffic flow belongs to mobile operator self-operated business stream, is transmitted to PDN-GW/GGSN.
Step S813, WOG carries out user traffic flow 3 after tunnel encapsulation, to be transmitted to PDN-GW/GGSN.By PDN-GW/GGSN, user traffic flow is forwarded to operator's self-operated business network.
Adopt the embodiment of the present invention, terminal can be with a single APN access wlan system, and shunting and the routing function of realization based on Business Stream, allow user can pass through a single connection, both can, by the self-operation data of honeycomb IAD access mobile operator, also third-party mobile Internet application directly can be shunted from WLAN IAD.
Preferred embodiment four
Fig. 9 is the detail flowchart of the different business Flow Policy route of local shunting.This flow process describes detailed functions and the flow process of Business Stream strategy route in detail, comprises that step S901 is to step S910.
Step S901, WOG supports routing function as layer 3 network element, can with the routing device of private network 11 exchanging routing information, comprise border gateway routing protocol (Border Gateway Protocol, referred to as BCP) Open Shortest Path First (Open Shortest Path First, referred to as OSPF), the Routing Information Exchange of the Routing Protocols such as routing information protocol (Routing Information Protocol, referred to as RIP).
Step S902, WOG as layer 3 network elements support routing functions, can with the gateway device of private network 11 exchanging routing information, comprise BCP, OSPF, the Routing Information Exchange of the Routing Protocols such as RIP.
Wherein, arriving privately owned networking 1 has two paths, and one is to be the gateway device 2 by private network 2 by 1, one of routing device.Here describing two paths is different transmission networks, its transmission bandwidth difference, comprise that transmission network character is also different, if transmission network 1 is the network of another one operator, can arrive routing device 1 by this transmission network, and transmission network 2 may be public Interent network, by transmission network 2, data message is routed to gateway 1.
Step S903, WOG, as routing device 2 exchanging routing informations of layer 3 network element support and private network, comprises BCP, OSPF, the Routing Information Exchange of the Routing Protocols such as RIP.
Step S904, user terminal is initiated Business Stream 1, and data flow is issued WOG.
Step S905, WOG detects user traffic flow feature by DPI mode, and judgement is the data service that is transmitted to private network 1, simultaneously according to the strategy of route forwarding table, selects the forward-path transmission user data service of GW1 to flow to private network 1.
Step S906, WOG, according to tactful route request, sends to user traffic flow the GW1 of private network 1, and issues user's business data flow from GW1 reception private network.
Step S907, user initiates Business Stream 2.
Step S908, WOG judges it is local shunting by DPI, and judges that by Business Stream strategy user traffic flow will issue private network 2, and will be by dedicated tunnel by user traffic flow route to private network 2.
Step S909, WOG is the data tunnel to private network 2 according to Business Stream strategy Route establishment.The data tunnel of WOG is set up based on every user's granularity, and data tunnel can be gre tunneling, can be also L2TP Tunnel, can be also peer-peer protocol (Point-to-Point Protocol, referred to as PPP) tunnel.
Step S910, WOG successfully sets up after user's data tunnel, and user traffic flow, from tunnel encapsulation, is issued to the routing gateway 2 of private network 2.
Preferred embodiment five
Figure 10 is the flow process of obtaining of the distributing strategy of WOG and Business Stream strategy routing policy, comprises that step S801 is to step S802.
Step S1001, WOG supports the distributing strategy of local configuration different business stream, mainly comprise the measuring ability configuration based on DPI and shunted the configuration of action, specify the Business Stream detecting to forward from this locality or far-end forwarding, and the local charge mode forwarding is online charging or offline charging, or carry out two charge mode simultaneously.Detect configuration for DPI and include but not limited to user's routing table, the configuration of business key feature word, and the layer 3 of business map network seven layer protocols, the source and destination IP address of layer 4, IP protocol type, the source and destination port numbers configuration of UDP/TCP/SCTP.
Meanwhile, WOG supports local configuration service Flow Policy routing policy, and routing policy comprises according to dynamic routing protocol, calculates the shortest path of destination, and specifies the routed path of certain class Business Stream according to static mode.Further, WOG supports this locality configuration of the data traffic flow charge mode to subscriber's local shunting.
Step S1002, WOG supports to receive the distributing strategy of strategic server, the Business Stream charging policy of Business Stream strategy routing policy and local shunting.For distributing strategy, Business Stream strategy by and the charge mode of the Business Stream of local shunting, WOG obtains from strategic server by Gxo interface, also can initiatively be handed down to WOG by strategic server simultaneously.
Preferred embodiment six
Figure 11 is that user initiates the flow chart data service connects from cellular network, and this embodiment has realized routing function same as the previously described embodiments.The method that this embodiment has embodied the Business Stream strategy routing policy in above-mentioned enforcement can be the process of user traffic flow implementation strategy route for cellular network data gateway GGSN/PDN-GW equally.
GGSN/PDN-GW can be according to local collocation strategy, and the tactful routing policy receiving from strategic server, by the method for DPI, user is used to the data session of single APN access cellular network, distinguish user traffic flow, according to the routing policy of coupling, the data traffic flow of user's different business feature is forwarded to different networks.
In the present embodiment, user initiates a data session, wherein for Business Stream S1101, GGSN/PDN-GW or the tactful routing iinformation that from strategic server obtain local according to DPI function match, find that this Business Stream need to be forwarded to private data business network, GGSN/PDN-GW is according to the requirement of tactful route, this data traffic flow is forwarded to private data business network, if tactful route request forwards by tunnel style, GGSN/PDN-GW can create dynamic data tunnel or select the static data tunnel having configured so, forward the Business Stream of specifying.
For the Business Stream S1102 in same user conversation, GGSN/PDN-GW is to be forwarded to self-operated business network according to DPI function match to the tactful route of this Business Stream, directly this work flow is dealt on the router that connects self-operated business network.
For the Business Stream S1103 in same user conversation, GGSN/PDN-GW is to be forwarded to Internet business network according to DPI function match to the tactful route of this Business Stream, directly this work flow is dealt on the router that connects Internet network.
As can be seen from the above description, the present invention has realized following technique effect:
By using the present embodiment, solve in the time that business datum is transmitted, generally can forward by mobile cellular network, just expend the problem of a large amount of key circuit transport network resources of mobile operator, and then reduce by a large amount of key circuit transport network resources of mobile operator, optimize data distribution method, promoted the performance of system.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (18)
1. a separate system for data, is characterized in that, comprising:
Radio network gateway, for providing the access of wireless network to subscriber equipment;
Routing device, for the forward-path flowing according to the dissimilar specified data applied business of the applied business of the UE request accessing by described radio network gateway, and forwards described market demand Business Stream.
2. system according to claim 1, is characterized in that, described forward-path comprise following one of at least; Forward by Cellular Networks network, forward by Internet.
3. system according to claim 2, is characterized in that, described Cellular Networks network comprises: grouped data network gateway PDN-GW/ ggsn GGSN.
4. system according to claim 3, is characterized in that, described Internet comprises:
Internet gateway, with described routing device coupling, is used to described system to put forward the Internet shunt paths;
Private service net gateway, with described routing device coupling, is used to described system that private service shunt paths is provided.
5. system according to claim 4, is characterized in that, also comprises:
Online Charging System OCS, with described routing device coupling, is used to the data service that far-end forwards to carry out online charging function;
Off-line accounting system OFCS, with described routing device coupling, is used to the data service that far-end forwards to carry out offline charging function.
6. system according to claim 5, is characterized in that, also comprises:
Strategic server, with described routing device coupling, is used to described OFCS and described OCS that charging policy is provided.
7. according to the system described in any one in claim 1 to 6, it is characterized in that, described radio network gateway is Cellular Networks network gateway, and described routing device is Cellular Networks network shunting gateway, and wherein, described Cellular Networks Network shunting gateway comprises PDN-GW/GGSN.
8. according to the system described in any one in claim 1 to 6, it is characterized in that, described radio network gateway is WLAN (wireless local area network) WLAN gateway, and described routing device is wlan network service distributing gateway WOG.
9. a shunt method for data, is characterized in that, comprising:
The type of service that flows corresponding applied business according to current data applied business is determined the forward-path of described market demand Business Stream, and wherein, described applied business is the applied business of the user equipment requests that accesses by radio network gateway;
On described forward-path, forward described market demand Business Stream.
10. method according to claim 9, is characterized in that, the type of service that flows corresponding applied business according to current data applied business also comprises before determining the forward-path of described market demand Business Stream:
For subscriber equipment foundation and the tunnel of grouped data network gateway PDN-GW/ ggsn GGSN UNICOM;
Send to described subscriber equipment the IP address that GGSN is described user equipment allocation described in described PDN-GW/, wherein, described IP address is associated with wireless data session.
11. methods according to claim 10, is characterized in that, after the IP address that is described user equipment allocation, also comprise to GGSN described in described subscriber equipment sends described PDN-GW/:
For the IP address of a local configuration of described user equipment allocation, wherein, the IP address of described local configuration is associated with described wireless data session.
12. methods according to claim 9, is characterized in that, flow the type of service of corresponding applied business determine that the forward-path of described market demand Business Stream comprises according to current data applied business:
Wlan network service distributing gateway WOG to described market demand Business Stream carry out deep message detection take the type of service that judges described applied business whether as the business of Cellular Networks network, wherein, described WOG shunts and/or route for the described market demand Business Stream that the subscriber equipment of access wlan network is sent;
If so, described market demand Business Stream is forwarded by Cellular Networks network;
If not, described market demand Business Stream is forwarded by Internet.
13. methods according to claim 12, is characterized in that, described market demand Business Stream is forwarded and comprised by Internet:
Judge whether described market demand Business Stream is third party's private internet business;
If so, described market demand Business Stream is forwarded by described third party's private internet network;
If not, described market demand Business Stream is forwarded by described third party's mobile Internet network.
14. methods according to claim 9, is characterized in that, flow the type of service of corresponding applied business determine that the forward-path of described market demand Business Stream comprises according to current data applied business:
Described in described PDN-GW/, GGSN judges whether the type of service of described applied business is the business of Cellular Networks network;
If so, described market demand Business Stream is forwarded by Cellular Networks network;
If not, described market demand Business Stream is forwarded by Internet.
15. according to the method described in any one in claim 9 to 14, it is characterized in that, after forwarding described market demand Business Stream, also comprises on described forward-path:
Obtain corresponding charging policy according to described forward-path;
The described market demand Business Stream described subscriber equipment being forwarded according to described charging policy carries out charging.
The part flow arrangement of 16. 1 kinds of data, is characterized in that, comprising:
Determination module, determines the forward-path of described market demand Business Stream for flow the type of service of corresponding applied business according to current data applied business, wherein, described applied business is the applied business of the user equipment requests that accesses by radio network gateway;
Forwarding module, for forwarding described market demand Business Stream on described forward-path.
17. devices according to claim 16, is characterized in that, also comprise:
Set up module, be used to the tunnel of subscriber equipment foundation and grouped data network gateway PDN-GW/ ggsn GGSN UNICOM;
Sending module, for send the IP address that GGSN is described user equipment allocation described in described PDN-GW/ to described subscriber equipment, wherein, described IP address is associated with wireless data session.
18. devices according to claim 17, is characterized in that, also comprise:
Distribution module, is used to local IP address configuring of described user equipment allocation, and wherein, the IP address of described local configuration is associated with described wireless data session.
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