CN103517254A - Multiple access point connection processing method and apparatus thereof - Google Patents
Multiple access point connection processing method and apparatus thereof Download PDFInfo
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- CN103517254A CN103517254A CN201210215586.4A CN201210215586A CN103517254A CN 103517254 A CN103517254 A CN 103517254A CN 201210215586 A CN201210215586 A CN 201210215586A CN 103517254 A CN103517254 A CN 103517254A
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Abstract
The invention discloses a multiple access point connection processing method and an apparatus thereof. The method comprises the following steps that a MAG reports a conversion ability of multiple APN addresses to a network; the MAG receives multiple APN connection information which is fed back by the network and corresponds to the conversion ability of multiple APN addresses; the MAG sends a data stream of a mobile node to the plurality of networks according to the multiple APN connection information. By using the method and the apparatus of the invention, a terminal is realized to access the plurality of APNs under the condition that single packet data is connected to an access network.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of multi-access point (Access PointName, referred to as APN) connection processing method and device.
Background technology
Third generation partner program (3rd Generation Partnership Project, referred to as 3GPP) grouping system (the Evolved Packet System of evolution, referred to as EPS) by universal mobile telecommunications system land radio access web (the Evolved Universal Terrestrial Radio Access Network of evolution, referred to as E-UTRAN), mobile management unit (Mobility Management Entity, referred to as MME), gateway (Serving Gateway, referred to as S-GW), grouped data network gateway (Packet Data Network Gateway, referred to as P-GW or PDN GW), home subscriber server (Home Subscriber Server, referred to as HSS), "Policy and Charging Rules Function (Policy and Charging Rules Function, referred to as PCRF) entity and other support nodes composition.
In Fig. 1, MME mobile management unit is responsible for the related work of the chains of command such as the processing of mobile management, Non-Access Stratum signaling and the contextual management of user's mobile management; S-GW is the accessing gateway equipment being connected with E-UTRAN, forwarding data between E-UTRAN and P-GW, and be responsible for the pending datas such as paging to carry out buffer memory; P-GW is the borde gateway of EPS and packet data network (Packet Data Network, referred to as PDN), is responsible for the access of PDN and the function such as forwarding data between EPS and PDN; PCRF is "Policy and Charging Rules Function entity, it is by receiving interface Rx and carrier network agreement (Internet Protocol, referred to as IP) business network is connected, obtain business information, in addition, it is connected with the gateway device in network by Gx/Gxa/Gxc interface, be responsible for initiating the foundation of IP carrying, guarantee the service quality (Quality of Service, referred to as QoS) of business datum, and carry out charging control.
EPS supports the intercommunication with non-3GPP network, and by the intercommunication of S2a/S2b/S2c Interface realization and non-3GPP network.Non-3GPP network comprises the non-3GPP network of trusted and trustless non-3GPP network.The IP access of the non-3GPP network of trusted can be directly by S2a and P-GW interface; The IP access of trustless non-3GPP network need to be passed through ePDG(Evolved Packet Data Gateway, the data gateway of evolution) be connected with P-GW, the interface between ePDG and P-GW is S2b.
Along with development and the demand of user to business of network technology, terminal is multimode gradually, can be chosen in dissimilar access network access, to carry multifarious business.Because connecting, different networks there is different characteristics and transmittability.Multimode terminal can be realized the seamless link between dissimilar radio access network, as honeycomb UMTS(Universal Mobile Telecommunications System, universal mobile telecommunications system)/EDGE(Enhanced Data Rate for GSM Evolution, enhanced data rates for gsm evolution technology)/GPRS(General Packet Radio Service, general packet radio service technology) with IEEE(Institute ofElectrical and Electronics Engineers, IEEE-USA) 802.11 WLAN (wireless local area network) (Wireless Local Area Networks, referred to as WLAN) connection.WLAN can provide very high data rate in family and hot spot region among a small circle, and cellular network can provide higher flexibility and ubiquitous covering, but data rate is lower, if can be in conjunction with both advantages, user will benefit from it.In the coverage of wlan access point, multimode terminal utilizes WLAN to carry out data access and the networking telephone (Voice over Internet Protocol, referred to as VoIP) application, can also use overlapping cellular network simultaneously, carry out audio call or media interviews.
WLAN connecting system (a kind of non-3GPP connecting system) has become the important access way that operator's mobile broadband service is disposed.In 3GPP research on standard field, WLAN can be used as at present non-3GPP access network trusty and has been directly connected to EPC, adopts network mobility management protocol (Network Based Mobility, NBM) standard interface S2a.
On S2a interface, support two kinds of NBM agreements, PMIPv6 and GTP agreement at present.GTP agreement is the mobility management protocol for cell mobile communication systems of 3GPP definition and maintenance, and PMIPv6 is the mobility management protocol that can be used for various communication constructions of ietf definition and maintenance.Proxy mobile IPv 6 agreement (Proxy Mobile IPv6, PMIPv6) be a kind of network mobile IP management agreement, PMIPv6 does not need mobile device to participate in any mobile management work, by network, be responsible for subscriber equipment mobile management, the impact of three layers of connection that bring is moved in not perception of mobile device itself.For mobile node (Mobility Node, MN), no matter where move to, it is own on home link (Home Link) that MN thinks.3GPP is based on the PMIPv6 network architecture and corresponding interface as shown in Figure 2.Key node and the function of PMIPv6 are as follows:
Local mobile anchor (Local Mobility Anchor, LMA): be the home agent (Home Agent) of mobile node, the topological anchor point of the home address of MN, the binding route of management mobile node.Packet data network gateway in 3GPP network (PDN GW) provide LMA function, is responsible for the data retransmission between MNHe Packet Data Network.
Mobile Access Gateway (Mobile Access Gateway, referred to as MAG): the mobile network layer of bringing of switching of shielding changes, and acts on behalf of the work that MN completes Binding Update.In the 3GPP network architecture, corresponding network element gateway Serving GW (S5/8), the non-3GPP IP Access Network Trusted Non-3GPP IP Access (S2a) of trust, evolution packet data gateway ePDG (S2b) provides MAG function.
Between LMA and MAG, by agent binding update messages (Proxy Binding Update, referred to as PBU) and proxy binding acknowledgment messages (Proxy Binding Acknowledgement, referred to as PBA), realize and act on behalf of mobile management.PBU sends to LMA by MAG, and PBA sends to MAG by LMA, two message with message to occurring.MAG by PBU by the home address binding relationship of the agent address of oneself and subscriber equipment MN to LMA, thereby LMA preserves the up-downgoing message that this corresponding relation correct route forwards MN.PBU is mainly used in Binding Update, and the binding cycle upgrades, and cancels binding, and corresponding LMA asks by send PBA message authentication PBU to MAG.
In the wlan network based on IEEE 802.11 agreements, the WLAN interface of mobile terminal node can only configure an IPv4 address, therefore mobile operator can only connect for user sets up single APN grouped data under this scene, cannot support many APN to connect.For above-mentioned restriction, a kind of network strengthen scheme of endless impact can meet the demand, and as shown in Figure 3, as shown in Figure 4, this flow process comprises that step S402 is to step S428 to the flow process of this scheme to scheme framework.
Step S402: mobile node carries out access authentication mandate by MAG and AAA, MAG obtains from AAA the subscriber policy data that mobile node is corresponding, comprise that user allows the APN information of access, in order to identify the IP stream selection information of the various Business Streams relevant with home network.
Step S404:MAG is installed to this locality by the user traffic flow routing policy obtaining in step S402.For example, HTTP message and Internet-APN(LMA-3) associated, SIP message and SIP-APN(LMA-2) associated, other all messages are associated with default APN.When MAG detects while needing associated service message, for LMA corresponding to this service route sets up PMIPv6 tunnel, to complete PMIP binding associated automatically.For example, when MAG detects the HTTP message that terminal sends, can be initiatively to the corresponding LMA-3 of Internet-APN, to carry out PBU/PBA mutual, set up corresponding PMIP tunnel and bind associated.
It is mutual that step S406-step S408:MAG and LMA-1 carry out PBU/PBA, the mobile node of establishment, and default APN is associated with home address HoA-1's, sets up corresponding PMIPv6 tunnel.
Step S410: mobile node is initiated DHCP flow process request address to MAG and distributed ，MAGJiang address HoA-1 to distribute to mobile node.
Step S412: mobile node be take HoA-1 as source address use business.
Step S414-step S420: mobile node is initiated SIP business, MAG identifies the backward P-GW of this service message and initiates the binding relationship that PBU/PBA sets up SIP-APN and HoA-2 alternately, by the SIP message source address transition of receiving, is to forward after HoA-2.
Step S422 is to step S428: the processing of similar SIP business, MAG sets up new PMIP binding relationship to the HTTP business of mobile node, by the HTTP message source address transition of receiving, is HoA-3 address.
Such scheme has solved WLAN access cannot use many APN connectivity problem, but lacks crucial mobility support at present.
For many APN in correlation technique, connect and lack the lower problem of success rate that mobility support causes the data flow transmission of APN connection, not yet propose at present effective solution.
Summary of the invention
For many APN in correlation technique, connect and lack the lower problem of success rate that mobility support causes APN to connect, the invention provides a kind of APN connection processing method and device, at least to address this problem.
According to an aspect of the present invention, provide a kind of APN connection processing method, having comprised: Mobile Access Gateway (MAG) has reported the transfer capability of DuoAPN address to network; Described MAG obtains the many APN link information corresponding to described many APN address transition ability of described network-feedback; Described MAG sends to a plurality of packet data network according to described many APN link information by the data flow of mobile node.
Preferably, MAG reports the transfer capability of DuoAPN address to comprise on network: described MAG sends the transfer capability of described DuoAPN address to checking, mandate and authentication AAA or mobile management entity MME.
Preferably, the many APN link information corresponding to described many APN address transition ability that described MAG receives described network-feedback comprises: described MAG receives many APN connection identifier information and/or the APN stream that described AAA or MME send and selects routing policy information.
Preferably, described many APN connection identifier information comprise following one of at least: APN, home address, user ID, grouped data connection identifier.
Preferably, described many APN address transition ability comprises: data flow recognition capability and/or NAT address transition ability, wherein, described data flow recognition capability is the characteristic information for identification data stream.
Preferably, the characteristic information of described data flow comprises one of following: address, internet (Internet Protocol, referred to as IP), port numbers, protocol number.
Preferably, described MAG sends to a plurality of networks to comprise the data flow of mobile node according to described many APN link information: described MAG judge current data stream whether with described many APN link information in APN stream select routing policy information matches, wherein, described APN stream selects routing policy information for characterizing the characteristic information of selecting the data flow of routing policy information matches with described APN stream;
If coupling, and current do not have foundation to be connected with grouped data corresponding to the characteristic information of described data flow, triggering is initiated to connect corresponding to the grouped data of APN corresponding to this current data flow to described network, the source address/port of uplink message number is converted to the address/port number that described grouped data connects, the destination address/port numbers of downlink message is reverted to the address/port number that the grouped data before conversion connects.
Preferably, APN stream select routing policy information comprise following one of at least: user ID, APN, source/destination port numbers, source/destination IP address, protocol number.
According to a further aspect in the invention, provide a kind of many APN to connect processing unit, be applied to Mobile Access Gateway (MAG) and comprise: reporting module, for report the transfer capability of DuoAPN address to network; Acquisition module, for obtaining the many APN link information corresponding to described many APN address transition ability; Sending module, for sending to a plurality of packet data network according to described many APN link information by the data flow of mobile node.
Preferably, described reporting module for to checking, authorize and authentication (AAA) or mobile management entity (MME) send the transfer capability of described DuoAPN address.
Preferably, described acquisition module sends for receiving described AAA or MME many APN connection identifier information and/or APN stream selection routing policy information.
Preferably, described sending module comprises: judge module, for judging current data stream, whether select the policy information of route to mate with the APN stream of described many APN link information, wherein, described APN stream selects routing policy information for characterizing the characteristic information of selecting the data flow of routing policy information matches with described APN stream; The first processing module, for judgment result is that coupling and currently not have to set up while being connected with grouped data corresponding to the characteristic information of described data flow of described judge module, triggering is the grouped data connection corresponding to APN corresponding to this current data flow to described network initiation; Modular converter, judgment result is that coupling and currently there is no foundation while being connected with grouped data corresponding to the characteristic information of described data flow for described judge module, the source address/port of uplink message number is converted to the address that described grouped data connects, the second processing module, for judgment result is that coupling and currently not have to set up while being connected with grouped data corresponding to the characteristic information of described data flow of described judge module, the destination address/port numbers of downlink message is reverted to the address of the grouped data connection before conversion.
By the present invention, adopt MAG to report the transfer capability of DuoAPN address, and obtain many APN link information, then according to this link information, the data flow of mobile node is sent to a plurality of packet data network, solve many APN in correlation technique and connected the lower problem of success rate that shortage mobility support causes many APN connection data stream to send, and then reached the effect that improves many APN connection data transmission success rate.
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 the structural representation of the non-roaming situation of system of the evolution packet network (EPS) according to correlation technique;
Fig. 2 is according to the network architecture diagram of the support PMIP interface of correlation technique;
Fig. 3 is trusting according to correlation technique the schematic diagram of supporting the scheme framework of many APN under WLAN access scene;
Fig. 4 supports the flow chart of the scheme of many APN according to the trust WLAN access scene of correlation technique;
Fig. 5 is according to the flow chart of the connection processing method of many APN of the embodiment of the present invention;
Fig. 6 is according to the structured flowchart of the connection processing unit of many APN of the embodiment of the present invention;
Fig. 7 is according to the preferred structured flowchart of the connection processing unit of many APN of the embodiment of the present invention;
Fig. 8 be according to the embodiment of the present invention in PIMPv6 architecture, act on the flow chart in handoff procedure;
Fig. 9 is linked under EPC network scenarios according to the WLAN trusting of the embodiment of the present invention, acts on the flow chart in initial attaching process; And
Figure 10 is linked under EPC network scenarios according to the WLAN trusting of the embodiment of the present invention, acts on the flow chart that is switched to 3GPP process from the WLAN Access Network of trust.
Embodiment
Hereinafter with reference to accompanying drawing, also describe the present invention in detail in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
The present embodiment provides a kind of many APN connection processing method, and Fig. 5 is according to the flow chart of the connection processing method of many APN of the embodiment of the present invention, and as shown in Figure 5, the method comprises the steps that S502 is to step S506.
Step S502:MAG reports the transfer capability of DuoAPN address to network.
Step S504:MAG obtains the many APN link information corresponding to this many APN address transition ability.
Step S506:MAG sends to a plurality of networks according to this many APN link information by the data flow of mobile node.
Pass through above-mentioned steps, MAG can report the transfer capability of DuoAPN address, and obtain many APN link information, then according to this link information, the data flow of mobile node is sent to a plurality of packet data network, overcome many APN connections in correlation technique and lacked the lower problem of success rate that mobility support causes many APN connection data stream to send, and then reached many APN of raising connection data transmission success rate effect.
Can realize as follows MAG and network be reported to the transfer capability of DuoAPN address: this MAG mobile node initially adhere to and/or handoff procedure in, to checking, mandate and authentication (Authentication, Authorization and Accounting, referred to as AAA) or mobile management entity (Mobility Management Entity, referred to as MME) send the transfer capability of this DuoAPN address.
Preferably, in step S504, MAG can, by receiving the many APN link information corresponding to this many APN address transition ability of network-feedback, can be also to obtain the many APN link information corresponding to this many APN address transition ability that system sets in advance.
When implementing, step S504 comprises: MAG can receive many APN connection identifier information and/or the APN stream of this AAA or MME transmission and select routing policy information.By the preferred embodiment, MAG can obtain many APN connection identifier information and/or APN stream and select routing policy information, so that follow-up data flow to mobile node is processed.
Preferably, this many APN connection identifier information comprises one of following: APN, home address, user ID (including but not limited to IMSI etc.), grouping connection identifier.。
Preferably, this many APN address transition ability at least comprises: data flow recognition capability, and/or NAT address transition ability, wherein, this data flow recognition capability is the characteristic information for identification data stream.Than preferably, the characteristic information of data flow comprise following one of at least: Internet Protocol (IP) address, port numbers, protocol number.
When implementing, described MAG judge current data stream whether with described many APN link information in APN stream select routing policy information matches, wherein, described APN stream selects routing policy information for characterizing the characteristic information of selecting the data flow of routing policy information matches with described APN stream; If coupling, and current do not have foundation to be connected with grouped data corresponding to the characteristic information of described data flow, triggering is initiated to connect corresponding to the grouped data of APN corresponding to this current data flow to described network, the source address/port of uplink message number is converted to the address/port number that described grouped data connects, destination address/the port numbers of downlink message is reverted to the address/port number that the grouped data before conversion connects, message is carried out to NAT processing.
It should be noted that, in the step shown in the flow chart of accompanying drawing, can in the computer system such as one group of computer executable instructions, carry out, and, although there is shown logical order in flow process, but in some cases, can carry out shown or described step with the order being different from herein.
In another embodiment, also provide the connection process software of a kind of many APN, the technical scheme that this software is described for carrying out above-described embodiment and preferred embodiment.
In another embodiment, also provide a kind of storage medium, stored the connection process software of above-mentioned many APN in this storage medium, this storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc.
The embodiment of the present invention also provides the connection processing unit of a kind of many APN, this device can be applied to Mobile Access Gateway (MAG), the connection processing unit of these many APN can be for realizing connection processing method and the preferred implementation of above-mentioned many APN, carried out explanation, repeat no more, below the module relating in the connection processing unit of these many APN is described.As used below, the combination of software and/or the hardware of predetermined function can be realized in term " module ".Although the described system and method for following examples is preferably realized with software, hardware, or the realization of the combination of software and hardware also may and be conceived.
Fig. 6 is according to the structured flowchart of the connection processing unit of many APN of the embodiment of the present invention, and as shown in Figure 6, this device comprises: reporting module 62, acquisition module 64 and sending module 66, be elaborated to said structure below.
Reporting module 62, for reporting network the transfer capability of DuoAPN address; Acquisition module 64, is connected to reporting module 62, for obtaining many APN link information of the many APN address transition ability reporting corresponding to reporting module 62; Sending module 66, is connected to receiver module 64, for the many APN link information receiving according to receiver module 64, the data flow of mobile node is sent to a plurality of packet data network.
Preferably, reporting module 62 for to checking, authorize and authentication AAA or mobile management entity MME send the transfer capability of this DuoAPN address.
Many APN connection identifier information and/or APN stream selection routing policy information that acquisition module 64 sends for receiving this AAA or MME.
Fig. 7 is according to the preferred structured flowchart of the connection processing unit of many APN of the embodiment of the present invention, and as shown in Figure 7, sending module 66 comprises: judge module 662, the first processing module 664, modular converter 666, the second processing modules 668, are described in detail said structure below.
Judge module 662, for judging current data stream, whether select the policy information of route to mate with the APN stream of described many APN link information, wherein, described APN stream selects routing policy information for characterizing the characteristic information of selecting the data flow of routing policy information matches with described APN stream;
The first processing module 664, be connected to judge module 662, for judgment result is that coupling and currently not have to set up while being connected with grouped data corresponding to the characteristic information of described data flow of judge module 662, triggering is the grouped data connection corresponding to APN corresponding to this data flow to this network initiation; Modular converter 666, be connected to judge module 662, judgment result is that coupling and currently there is no foundation while being connected with grouped data corresponding to the characteristic information of described data flow for judge module 662, the source address of uplink message is converted to the address that this grouped data connects, the second processing module 668, be connected to judge module 662, for judgment result is that coupling and currently not have to set up while being connected with grouped data corresponding to the characteristic information of described data flow of judge module 662, the destination address of downlink message is reverted to the address of the grouped data connection before conversion.
Below in conjunction with preferred embodiment, describe, following preferred embodiment combines above-described embodiment and preferred implementation.
In correlation technique, applicant finds that many APN access connects that there are the following problems: when positions of mobile nodes changes while switching, cannot understand target MAG whether have the ability of the identical associated many APN of automatic detection service message with source MAG.In switching the process of Certificate Authority, how target AAA will many (APN, P-GW identifies) information is passed to MAG.If MAG does not support many APN associated, the business of previously carrying out address transition will be interrupted.The application is by following technical solution: MAG can report the transfer capability of DuoAPN address, and obtain many APN link information of network-feedback, then according to this link information, the data flow of mobile node is sent, overcome many APN connections in correlation technique and lacked the lower problem of success rate that mobility support causes many APN connection data stream to send, and then reached many APN of raising connection data transmission success rate effect.Below in conjunction with following preferred embodiment, the scheme of above-described embodiment is elaborated.
Preferred embodiment one
The present embodiment provides a kind of and has supported many APN to connect the method for mobile management, can solve in correlation technique scene, proposes to support many APN to connect the method for mobile management under a kind of this scene.
MAG reports many APN address transition ability to network, and network is handed down to MAG by many APN link information of correspondence.
Preferably, mobile node initially adhere to and/or handoff procedure in, MAG sends the indication of many APN address transition ability to AAA or MME, AAA or MME by many APN link information of correspondence and or APN stream select routing policy information to be handed down to MAG.
Preferably, many APN address transition ability includes but not limited to Business Stream recognition capability, according to Flow Policy, corresponding stream is associated with APN, if the APN of current connection is not the corresponding APN of stream, the new grouped data of the corresponding A PN initiating to network connects, and the source address of uplink message is converted to the address transmission that new data connect, downlink message destination address reverts to the nat feature of conversion ，Ji address, Qian address.
Preferably, the many APN link information in the present embodiment includes but not limited to APN and or home address and or grouping connection identifier.
Preferred embodiment two
This preferred embodiment provides a kind of many APN connection data stream sending method, and in this preferred embodiment, mobile node is attached in network by MAG1 according to the flow process of Fig. 4, and MAG1 is that mobile node has been set up 3 PMIPv6 tunnels and APN binding incidence relation.Mobile node is from MAG1 is switched to MAG2, and MAG2 is carrying out completing capability negotiation of the present invention in the process of Certificate Authority with AAA.The flow process of this preferred embodiment comprises that step S802 is to step S828.
Step S802:L3 connects.
Step S804:PMIPv6 tunnel(mobile node sign, default APN, HoA-1).
Step S806:PMIPv6 tunnel(mobile node sign, default APN, HoA-2).
Step S808:SIP flows (in source address after MAG1, by HoA-1, making HoA-2 into).
Step S810:PMIPv6 tunnel(mobile node sign, default APN, HoA-3).
Step S812:HTTP flows (in source address after MAG1, by HoA-1, making HoA-3 into).
Step S814: mobile node is initiated to switch to MAG2 and adhered to request;
The Certificate Authority of the mobile node that step S816:MAG2 carries out to aaa server, the information that MAG2 comprises many APN address transition ability in the authentication authorization request message sending to AAA, aaa server is received after ability indication, the default APN that mobile node has been set up, the LMA(P-GW that SIP-APN and Internet-APN are corresponding) information sends to MAG2, issues the stream that APN is corresponding simultaneously and selects routing iinformation; If do not receive such ability indication, aaa server refers to issue default APN and corresponding LMA(P-GW) information.
Step S818:MAG2 installs the stream of mobile node and selects routing policy information, and the selection principle is here that SIP flows corresponding to SIP-APN LMA-2, HTTP stream correspondence and Internet-APN LMA-3, and other Business Streams are corresponding to default APN LMA-1.
The APN that step S820-step S824:MAG2 provides according to AAA and LMA information, correspondingly mutual to LMA1 initiation PBU/PBA, the associated binding of setting up default APN and HoA-1; To LMA2 initiation, PBU/PBA is mutual, the associated binding of setting up SIP-APN and HoA-2; To LMA3 initiation, PBU/PBA is mutual, the associated binding of setting up Internet-APN and HoA-3.
Step S826: mobile node is initiated DHCP flow process request address to MAG2 and distributed, and MAG2 distributes to mobile node by address HoA-1, and this step may be carried out any time after 504;
Step S828: mobile node is switched to objective network by Business Stream and is forwarded according to traffic characteristics reference address by MAG2, thus the continuity of each business guaranteed.
Preferred embodiment three
This preferred embodiment provides a kind of many APN connection data stream sending method, and in the present embodiment, subscriber equipment is initially attached to EPC by the WLAN trusting and realizes flow chart of the present invention, and in figure, TWAN possesses the many APN address transition ability described in summary of the invention.Fig. 9 is linked under EPC network scenarios according to the WLAN trusting of the embodiment of the present invention, acts on the flow chart in initial attaching process, and as shown in Figure 9, the method comprises the steps that S902 is to step S920.
Step S902: subscriber equipment is set up three layers of connection to the wlan network of trusting.
Step S904: subscriber equipment is initiated access authentication mandate to TWAN, the access authentication authorization requests of the subscriber equipment that the response of 3GPP aaa server is forwarded by TWAN.TWAN is included in described many APN address transition ability indication in the EAP message that sends to 3GPP aaa server.3GPP aaa server receives after the indication of described ability, selects routing policy information to send to TWAN the stream of APN association corresponding to subscriber equipment, and this policy information may be the local configuration of 3GPP AAA or obtain from HSS.
Step S906:TWAN installs the stream of mobile node and selects routing policy information, and the selection principle is here that SIP flows corresponding to SIP-APN P-GW2, and other Business Streams are corresponding to default APN P-GW1.
The APN that step S908:TWAN provides according to 3GPP aaa server and LMA information, to P-GW1 initiation, PBU/PBA is mutual, the associated binding of setting up default APN and HoA-1 home address 1.
Step S910:P-GW1 notifies the identity information of oneself and associated default APN information to 3GPP aaa server and upgrades and preserve.
Step S912: subscriber equipment is initiated DHCP flow process request address to TWAN and distributed, and TWAN distributes to mobile node by address HoA-1, and this step may be carried out any time after 604.
Step S914: subscriber equipment be take HoA-1 as source address transmission SIP service message.
Step S916:TWAN identifies as after SIP business, detects and exists corresponding APN stream to select routing policy information, and TWAN is mutual to the P-GW2 initiation PBU/PBA of the responsible SIP-APN business of correspondence, the associated binding of setting up SIP-APN and HoA-2 home address 2.
Step S918:P-GW2 notifies the identity information of oneself and associated SIP-APN information to 3GPP aaa server and upgrades and preserve.
Step S920: the SIP Business Stream of subscriber equipment is routed to PGW-2 after TWANNAT processes.
Preferred embodiment four
This preferred embodiment provides a kind of many APN connection data stream sending method, in this preferred embodiment, subscriber equipment is initially attached to the WLAN access network of trust as shown in preferred embodiment three, set up default APN(P-GW 1) with Internet-APN(P-GW 2) grouped data be connected, after finding 3GPP connecting system, subscriber equipment switches to 3GPP from the WLAN connecting system of current trust, the S-GW(MAG that possesses many APN address transition ability) to MME, report the ability of oneself, the default APN(P-GW 1 that MME selects routing policy information and subscriber equipment to set up on the WLAN trusting the stream of the APN association of obtaining from HSS) and Internet-APN(P-GW 2) grouped data link information send to S-GW, the seamless switching of finishing service stream.Figure 10 is linked under EPC network scenarios according to the WLAN trusting of the embodiment of the present invention, acts on the flow chart that is switched to 3GPP process from the WLAN Access Network of trust, and as shown in figure 10, this flow process comprises the steps that S1002 is to step S1018.
Step S1002: subscriber equipment according to the preferred embodiment three flow process by the WLAN access of trusting, be connected to EPC and set up within 2 minutes, be clipped to default APN(P-GW 1) with Internet-APN(P-GW 2) grouped data be connected.
Step S1004: subscriber equipment initiates to adhere to request by 3GPP access network to MME;
Step S1006: subscriber equipment carries out 3GPP access authentication, MME from the Diameter message from HSS, obtain that stream selects that routing policy information and current user equipment used to default APN(P-GW 1) and grouped data link information Internet-APN(P-GW2).
Step S1008:MME selects routing policy information to send to S-GW APN stream in setting up conversation request message.
Step S1010:S-GW initiates PBU/PBA to P-GW 1 and switches binding associated default APN, and HoA-1 and subscriber equipment, set up grouped data and connect.
Step S1012:S-GW send to MME set up conversational response message in carry the indication of supporting many APN address transition ability.
Step S1014:MME, after the ability indication of receiving described S-GW, initiates the session request of setting up for Internet-APN automatically.
Step S1016:S-GW initiates PBU/PBA to P-GW 2 and switches the associated Internet-APN of binding, and HoA-2 and subscriber equipment, set up grouped data and connect.
MME's set up conversational response message to step S1016:S-GW sending to.
Pass through above-described embodiment, a kind of many APN connection processing method and device are provided, by MAG, can report the transfer capability of DuoAPN address, and obtain many APN link information of network-feedback, then according to this link information, the data flow of mobile node is sent, overcome many APN connections in correlation technique and lacked the lower problem of success rate that mobility support causes many APN connection data stream to send, and then reached many APN of raising connection data transmission success rate effect.It should be noted that, these technique effects are not that above-mentioned all execution modes have, and some technique effect is that some preferred implementation just can obtain.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of 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, or they are made into respectively to each integrated circuit modules, or a plurality of 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 (12)
1. a multi-access point APN connection processing method, is characterized in that comprising:
Mobile Access Gateway MAG reports the transfer capability of DuoAPN address to network;
Described MAG obtains the many APN link information corresponding to described many APN address transition ability;
Described MAG sends to a plurality of packet data network according to described many APN link information by the data flow of mobile node.
2. method according to claim 1, is characterized in that, MAG reports the transfer capability of DuoAPN address to comprise on network:
Described MAG sends the transfer capability of described DuoAPN address to checking, mandate and authentication AAA or mobile management entity MME.
3. method according to claim 2, is characterized in that, the many APN link information corresponding to described many APN address transition ability that described MAG receives described network-feedback comprises:
Described MAG receives many APN connection identifier information and/or the APN stream of described AAA or MME transmission and selects routing policy information.
4. method according to claim 3, is characterized in that, described many APN connection identifier information comprise following one of at least:
APN, home address, user ID, grouped data connection identifier.
5. according to the method described in any one in claim 1 to 4, it is characterized in that, described many APN address transition ability comprises:
Data flow recognition capability and/or network address translation NAT address transition ability, wherein, described data flow recognition capability is the characteristic information for identification data stream.
6. method according to claim 5, is characterized in that, the characteristic information of described data flow comprise following one of at least:
Internet Protocol IP address, port numbers, protocol number.
7. according to the method described in any one in claim 1 to 4, it is characterized in that, described MAG sends to a plurality of networks to comprise the data flow of mobile node according to described many APN link information:
Described MAG judge current data stream whether with described many APN link information in APN stream select routing policy information matches, wherein, described APN stream selects routing policy information for characterizing the characteristic information of selecting the data flow of routing policy information matches with described APN stream;
If coupling, and current do not have foundation to be connected with grouped data corresponding to the characteristic information of described data flow, triggering is initiated to connect corresponding to the grouped data of APN corresponding to this current data flow to described network, the source address/port of uplink message number is converted to the address/port number that described grouped data connects, the destination address/port numbers of downlink message is reverted to the address/port number that the grouped data before conversion connects.
8. method according to claim 7, is characterized in that, described APN stream select routing policy information comprise following one of at least: user ID, APN, source/destination port numbers, source/destination IP address, protocol number.
9. multi-access point APN connects a processing unit, is applied to Mobile Access Gateway MAG, it is characterized in that comprising:
Reporting module, for reporting the transfer capability of DuoAPN address to network;
Acquisition module, for obtaining the many APN link information corresponding to described many APN address transition ability;
Sending module, for sending to a plurality of packet data network according to described many APN link information by the data flow of mobile node.
10. device according to claim 9, is characterized in that, described reporting module for to checking, authorize and authentication AAA or mobile management entity MME send the transfer capability of described DuoAPN address.
11. devices according to claim 10, is characterized in that, many APN connection identifier information and/or APN stream selection routing policy information that described acquisition module sends for receiving described AAA or MME.
12. according to the device described in any one in claim 9 to 11, it is characterized in that, described sending module comprises:
Judge module, for judging current data stream, whether select the policy information of route to mate with the APN stream of described many APN link information, wherein, described APN stream selects routing policy information for characterizing the characteristic information of selecting the data flow of routing policy information matches with described APN stream;
The first processing module, for judgment result is that coupling and currently not have to set up while being connected with grouped data corresponding to the characteristic information of described data flow of described judge module, triggering is the grouped data connection corresponding to APN corresponding to this current data flow to described network initiation; Modular converter, judgment result is that coupling and currently there is no foundation while being connected with grouped data corresponding to the characteristic information of described data flow for described judge module, the source address/port of uplink message number is converted to the address that described grouped data connects, the second processing module, for judgment result is that coupling and currently not have to set up while being connected with grouped data corresponding to the characteristic information of described data flow of described judge module, the destination address/port numbers of downlink message is reverted to the address of the grouped data connection before conversion.
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