CN103188667B - Wireless local area network access method, gateway and network integration system - Google Patents
Wireless local area network access method, gateway and network integration system Download PDFInfo
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Abstract
The present invention relates to a kind of wireless local area network access method, set up SIP session connection including: WAG via AC/BAS and terminal, and carry out ppp negotiation with the core network side apparatus of LTE network；During ppp negotiation, WAG asks authentication to the aaa server of core network side；Upon successful authentication, WAG sends PMIP request to PDN GW；WAG receives the PMIP of PDN GW response and is successfully accessed message, and is successfully accessed message according to PMIP the IP address that PDN GW distributes is sent to terminal, completes ppp negotiation, and sets up from terminal via the user conversation of the business network of WAG, PDN GW to LTE network.The present invention relates to a kind of WAG and network integration system.The present invention can realize the effective integration of the business function of wlan network and LTE network, and the least improving existing network and reduce the impact on user in conjunction with the feature of existing network.
Description
Technical field
The present invention relates to wideband wireless mobile communication technical field, particularly relate to a kind of wireless local area network access method, WLAN accesses gateway (WLANAccessGateway, it is called for short WAG) and WLAN (WirelessLAN, it is called for short WLAN) network integration system of/long-term evolving network (LongTermEvolution, be called for short LTE).
Background technology
At present, the network that domestic telecommunication operator has deployed CDMA (CodeDivisionMultipleAccess, be called for short CDMA) in existing network and WLAN merges, and about the research of WLAN Yu LTE UNE scheme still in further discussion.In terms of standard, third generation partner program (being called for short 3GPP) normal structure gives the architectural schemes that 3GPP network merges, and the standard fusion architectural schemes of several LTE network and non-3 GPP network with wlan network, the most briefly introduces it.
1) 3GPPTS23.234 standard gives the architectural schemes that 3GPP network merges (being called for short I-WLAN) with wlan network, as shown in Figure 1.In I-WLAN scheme, wlan network can connect 3GPP core net by two ways: (1) WLANDirectIPAccess: terminal is directly connected to local IP network from WLANAN, and is authenticated in 3GPP nets and authorizes.(2) after WLAN3GPPIPAccess: terminal accesses wlan network, by setting up and packet data gateway (PacketDataGateway, be called for short PDG) IP security protocol (IPSecurityProtocol, it is called for short IPSec) tunnel, connect 3GPP operator provide business, i.e. terminal have to pass through 3GPP core net could access outside IP network.
2) 3GPPTS23.402 standard gives the architectural schemes that LTE network and non-3 GPP network merge, and mainly includes three kinds of schemes: S2a scheme, S2b scheme and S2c scheme.Wherein, S2a and S2b scheme as in figure 2 it is shown, S2c scheme as shown in Figure 3.
S2a scheme proposes for the non-3 GPP access of credit, and S2a interface is the interface between WLANAN and PDNGW, can realize based on proxy mobile IPv 6 (being called for short PMIPv6) or mobile IPv 4 other cities agency (being called for short MIPv4FA).In the program, WLAN is accessed, need the access controller/BAS Broadband Access Server (AccessControl/BroadbandAccessServer that upgrades, it is called for short AC/BAS) support that (being called for short FA) function is acted on behalf of in the Mobile Access Gateway (MobileAccessGateway is called for short MAG) of PMIPv6 or the other cities of MIPv4.It addition, S2a interface also can pass through GRPS tunnel protocol (GPRSTunnelingProtocol is called for short GTP) protocol realization.
S2b scheme proposes for the non-3 GPP access of non-credit, S2b interface is evolution packet data gateway (evolutionPDG, it is called for short ePDG) and grouped data network gateway (PacketDataNetworkGateway, be called for short PDNGW) between interface, can be based on PMIPv6 or GTP protocol realization, it has been acknowledged that provided by the way of S2b interface by GTP in 3GPPR10 standard.The program introduces ePDG and accesses gateway, between terminal and ePDG, set up ipsec tunnel, it is ensured that the business datum in 3GPP network is not stolen by middle wlan network.
S2c interface is the interface between terminal and PDNGW, can be based on double stack mobile IP v 6s (being called for short DSMIPv6) protocol realization, and carrying access part can be the non-3 GPP network of credit, it is also possible to be the non-3 GPP network of non-credit.Under non-credit access way, terminal can get three IP addresses, the local ip address of respectively WLANAN distribution, the Care-of Address of ePDG distribution and the remote ip address of PDNGW distribution.The program is higher to the requirement of terminal, it is desirable to terminal supports dual stack supported bilayer tunnel, so typically not considering.
In the case of not considering S2c scheme, credit network and non-credit network insertion differ primarily in that its reforming mode: credit network insertion needs the couple in router transforming access network to be allowed to support the MAG function of PMIPv6 or the FA function of MIPv4；Rather than credit network insertion needs to increase ePDG node to process mobility and it needs to terminal supports the ipsec tunnel between UE to ePDG.
In the integration program of several wlan networks set forth above and LTE network, S2a scheme is aimed at the wlan network of credit and proposes, and it is relatively big to the transformation of WLAN fixed network, and safety to network does not proposes good solution；And S2b scheme is the wlan network for non-credit and propose, fixed network need not be transformed, but remains a need for terminal and support that ipsec protocol, to ensure the safety of data, therefore adds the requirement to terminal capability, it is impossible to the certain customers of compatible existing network.
Summary of the invention
The purpose of the present invention is to propose to a kind of wireless local area network access method, gateway and network integration system, the effective integration of the business function of wlan network and LTE network, and the least existing network being improved and reduces the impact on user can be realized in conjunction with the feature of existing network.
For achieving the above object, the invention provides a kind of wireless local area network access method, including:
WLAN accesses gateway and sets up SIP session connection via access controller/BAS Broadband Access Server and terminal, and carries out ppp negotiation with the core network side apparatus of long-term evolving network；
During ppp negotiation, described WLAN accesses gateway and asks authentication to the aaa server of core network side；
Upon successful authentication, described WLAN accesses gateway and sends proxy mobile IP request to grouped data network gateway；
Described WLAN accesses the proxy-mobile IP of the gateway described grouped data network gateway response of reception and is successfully accessed message, and be successfully accessed, according to described proxy-mobile IP, the IP address that described grouped data network gateway distributes by message and be sent to described terminal, complete ppp negotiation, and set up from described terminal via described WLAN access gateway, the user conversation of described grouped data network gateway to the business network of described long-term evolving network.
Further, when described terminal is after the coverage of WLAN is moved out to the coverage of long-term evolving network, gateway accesses described user conversation, and search described grouped data network gateway according to authorization message, and be changed to from described terminal the passage of the data stream of described user conversation via described gateway, the business network of described grouped data network gateway to described long-term evolving network, and notify that described WLAN accesses gateway and deletes the data session information that described user conversation is relevant.
Further, if described terminal needs to access the business network of the long-term evolving network of visited place, the most described terminal accesses the access controller/BAS Broadband Access Server in the WLAN of visited place, the access controller of described visited place/BAS Broadband Access Server accesses described aaa server, and receives, from described aaa server, the visited place insertion authority information that described aaa server issues；Access controller/the BAS Broadband Access Server of described visited place is according to described visited place insertion authority information, the address of the WLAN access gateway of visited place is obtained by the domain name system server of inquiry visited place, the address of the WLAN access gateway according to described visited place carries out the access of the WLAN access gateway of described visited place, and is accessed, by the WLAN of described visited place, the proxy-mobile IP passage that gateway sets up the grouped data network gateway of visited place.
Further, if described terminal needs to access the business network of the long-term evolving network of visited place, the most described terminal accesses the evolved base station in the long-term evolving network of visited place, described evolved base station accesses described aaa server by mobile management entity, receive, from described aaa server, the visited place insertion authority information that described aaa server issues, and described visited place insertion authority information is sent to described terminal；Described terminal accesses the access controller/BAS Broadband Access Server of described visited place；Access controller/the BAS Broadband Access Server of described visited place is according to described visited place insertion authority information, the address of the WLAN access gateway of visited place is obtained by the domain name system server of inquiry visited place, the address of the WLAN access gateway according to described visited place carries out the access of the WLAN access gateway of described visited place, and is accessed, by the WLAN of described visited place, the proxy-mobile IP passage that gateway sets up the grouped data network gateway of visited place.
Further, if described terminal needs the business network of the long-term evolving network of access belonging area, the most described terminal accesses the access controller/BAS Broadband Access Server in the WLAN of visited place, the access controller of described visited place/BAS Broadband Access Server accesses described aaa server, and receives, from described aaa server, the insertion authority information (including visited place insertion authority information and ownership place insertion authority information) that described aaa server issues；Access controller/the BAS Broadband Access Server of described visited place is according to described visited place insertion authority information and ownership place insertion authority information, the WLAN being obtained visited place by the domain name system server of inquiry visited place accesses the address of gateway and the address of the grouped data network gateway of ownership place, the address of the address of the WLAN access gateway according to described visited place and the grouped data network gateway of ownership place carries out the access of the grouped data network gateway of described ownership place, and accessed, by the WLAN of described visited place, the proxy-mobile IP passage that gateway sets up the grouped data network gateway of ownership place.
For achieving the above object, the invention provides a kind of WLAN and access gateway, including:
Unit is set up in SIP session connection, for setting up SIP session connection via access controller/BAS Broadband Access Server and terminal；
Ppp negotiation unit, carries out ppp negotiation for the core network side apparatus with long-term evolving network；
AAA authenticating unit, for asking authentication to the aaa server of core network side during ppp negotiation；
PMIP Path Setup unit, for sending proxy mobile IP request when authenticating successfully to grouped data network gateway, and the proxy-mobile IP receiving described grouped data network gateway response is successfully accessed message；
Distribution address transmitting element, is sent to described terminal for being successfully accessed message according to described proxy-mobile IP by the IP address that described grouped data network gateway is described terminal distribution, completes ppp negotiation；
User conversation sets up unit, accesses gateway, the user conversation of described grouped data network gateway to the business network of described long-term evolving network from described terminal via described WLAN for setting up.
Further, also include:
Session changing unit, for in described terminal after the coverage of WLAN is moved out to the coverage of long-term evolving network, the passage of the data stream of described user conversation is changed to from described terminal via described gateway, the business network of described grouped data network gateway to described long-term evolving network；
Session information deletes unit, for after the Notification of Changes receiving described user conversation, deletes the data session information that described user conversation is relevant.
Further, described PMIP Path Setup unit specifically includes:
Visited place PMIP Path Setup unit, is used for the grouped data network gateway transmission proxy mobile IP request to visited place when authenticating successfully, and the proxy-mobile IP receiving the grouped data network gateway response of described visited place is successfully accessed message；And/or
Ownership place PMIP Path Setup unit, for sending proxy mobile IP request when authenticating successfully to the grouped data network gateway of ownership place, and the proxy-mobile IP receiving the grouped data network gateway response of described ownership place is successfully accessed message.
For achieving the above object, the invention provides a kind of network integration system including that arbitrary aforementioned WLAN accesses gateway, also include:
It is positioned at the access controller/BAS Broadband Access Server of wireless local network edge；
The grouped data network gateway being positioned in the core net of long-term evolving network；
When terminal accesses described access controller/BAS Broadband Access Server, set up and access gateway, the user conversation of described grouped data network gateway to the business network of described long-term evolving network from described terminal via described WLAN.
Further, also include: the aaa server being positioned in the core net of long-term evolving network, access the certification between gateway for performing described terminal and described WLAN, and described WLAN accesses the certification between gateway and described aaa server.
Based on technique scheme, the present invention is without transforming the AC/BAS equipment in WLAN huge in existing network, and support that PMIP mode accesses the WAG of PDNGW by the core-network side of LTE network, just can realize the effective integration of the business function of wlan network and LTE network on the basis of combining the feature of existing network, and transformation to existing network is less, advantageously reduces the impact on user.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the network topology schematic diagram of I-WLAN scheme in existing 3GPP standard.
Fig. 2 is the network topology schematic diagram of S2a and the S2b architectural schemes that LTE network merges with non-3 GPP network in existing 3GPP standard.
Fig. 3 is the network topology schematic diagram of the S2c architectural schemes that LTE network merges with non-3 GPP network in existing 3GPP standard.
Fig. 4 is the network topology schematic diagram of the wlan network that is based on of the embodiment of the present invention and LTE network fusion architecture scheme.
Fig. 5 is the schematic flow sheet of an embodiment of wireless local area network access method of the present invention.
Fig. 6 is the network topology schematic diagram of the wlan network that is based on of another embodiment of wireless local area network access method of the present invention and LTE network fusion architecture scheme.
Fig. 7 is the structural representation that WLAN of the present invention accesses an embodiment of gateway.
Fig. 8 is the structural representation that WLAN of the present invention accesses another embodiment of gateway.
Fig. 9 is the structural representation of an embodiment of inventive network emerging system.
Figure 10 is the structural representation of another embodiment of inventive network emerging system.
Detailed description of the invention
Below by drawings and Examples, technical scheme is described in further detail.
As shown in Figure 4, the wlan network being based on for the embodiment of the present invention and the network topology schematic diagram of LTE network fusion architecture scheme.Network integration architectural schemes in the diagram, increases WAG as convergence device between the PDNGW of the edge device AC/BAS of WLAN and the core-network side of LTE network.Terminal can be linked into WAG by SIP mode, and carries out eHRPDPPP negotiation with WAG.WAG can be linked into the PDNGW of core-network side to use PMIP mode.
Under this framework, it is not necessary to transform the edge device AC/BAS in existing network, this is much smaller with the workload of transformation compared with the S2a architectural schemes that non-3 GPP network merges of LTE network in 3GPP standard.User affected aspect, compared to S2a architectural schemes, is then more beneficial for the compatibility of existing network user.
Under the network integration framework shown in Fig. 4, Fig. 5 shows the schematic flow sheet of an embodiment of wireless local area network access method of the present invention.In the present embodiment, WLAN access process includes:
Step 101, WAG set up SIP session connection via AC/BAS and terminal, and carry out ppp negotiation with the core network side apparatus of LTE network；
Step 102, during ppp negotiation, aaa server from described WAG to core network side ask authentication；
Step 103, upon successful authentication, described WAG sends PMIP request to PDNGW；
Step 104, described WAG receive the PMIP of PDNGW response and are successfully accessed message, and be successfully accessed, according to PMIP, the IP address that PDNGW distributes by message and be sent to terminal, complete ppp negotiation, set up from described terminal via the user conversation of the business network of described WAG, PDNGW to LTE network.
In the present embodiment, WAG sets up from terminal to WAG in terminal access procedure, the tunnel of the business network of PDNGW to LTE, and before setting up tunnel, WAG is equivalent to the effect of fire wall, can stop the packet being not intended to pass through.It addition, for the packet from unknown IP address, WAG can also abandon, to guarantee the safety connected.After tunnel is set up, WAG then carries out forwarding and and performing predetermined routing policy of packet as routing forwarding equipment.WAG can perform the Packet Filtering effect received according to the non-encrypted information in packet.By the above-mentioned functions of WAG, WAG can all play the effect of protection before and after tunnel is set up, and this is that the safety of network proposes preferable solution.
When terminal is after the coverage of wlan network is moved out to the coverage of LTE network, gateway (ServingGW) accesses the user conversation set up, and search corresponding PDNGW according to authorization message, and the passage of the data stream of this user conversation is changed to from terminal via the business network of ServingGW, PDNGW to LTE network.After passage changes, PDNGW is also notified that WAG deletes the data session information that this user conversation is relevant.This completes the session switching from wlan network to LTE network.
Considering in the case of multi-operator, terminal wlan network from visited place when roaming accesses, as shown in Figure 6, and the network topology schematic diagram of the wlan network being based on for another embodiment of wireless local area network access method of the present invention and LTE network fusion architecture scheme.Figure 6 illustrates two kinds of application scenarios:
If 1 terminal needs to access the business network of the LTE network of visited place, the then AC/BAS during terminal accesses the WLAN of visited place, the AC/BAS of visited place accesses aaa server, and receives, from aaa server, the visited place insertion authority information that aaa server issues.
The AC/BAS of visited place is according to visited place insertion authority information, the address of the WAG of visited place is obtained by the dns server of inquiry visited place, the address of the WAG according to visited place carries out the access of the WAG of visited place, and is set up the PMIP passage (seeing solid line shown in letter A in Fig. 6) of the PDNGW of visited place by the WAG of visited place.
After setting up PMIP passage, visited place PDNGW provides data service to access for terminal, and now visited place WAG can be linked into the PDNGW of visited place according to authorized user message for user.Customer traffic directly can be connected to visited place WAG from visited place wlan network by ppp link, visited place WAG be forwarded to visited place PDNGW by PMIP tunnel, then by visited place PDNGW, customer traffic is forwarded to visited place business network.
If 2 terminals need the business network of the LTE network of access belonging area, AC/BAS during then terminal accesses the WLAN of visited place, the AC/BAS of visited place accesses aaa server, and receiving, from aaa server, the insertion authority information that aaa server issues, insertion authority information includes visited place insertion authority information and ownership place insertion authority information.
The AC/BAS of visited place is according to visited place insertion authority information and ownership place insertion authority information, the address of the WAG of visited place and the address of the PDNGW of ownership place is obtained by the dns server of inquiry visited place, the address of the address of the WAG according to visited place and the PDNGW of ownership place carries out the access of the PDNGW of ownership place, and is set up the PMIP passage (seeing solid line shown in letter b in Fig. 6) of the PDNGW of ownership place by the WAG of visited place.
After setting up PMIP passage, customer traffic is directly connected to visited place WAG from visited place wlan network by ppp link, visited place WAG be forwarded to ownership place PDNGW by PMIP tunnel.It is forwarded to ownership place business network by ownership place PDNGW.
In addition to both the above scene, the LTE network that terminal it is also conceivable to from visited place accesses.If terminal needs to access the business network of the LTE network of visited place, evolved base station (eNodeB) during then terminal accesses the LTE network of visited place, eNodeB accesses aaa server (the most not shown) by mobile management entity (MME), receive, from aaa server, the visited place insertion authority information that aaa server issues, and visited place insertion authority information is sent to terminal.
Terminal accesses the AC/BAS of visited place.The AC/BAS of visited place is according to visited place insertion authority information, the address of the WAG of visited place is obtained by the dns server of inquiry visited place, the address of the WAG according to visited place carries out the access of the WAG of visited place, and is set up the PMIP passage of the PDNGW of visited place by the WAG of visited place.
In each roaming scence above-mentioned, WAG can generate corresponding charge information to each built vertical tunnel.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can be completed by the hardware that programmed instruction is relevant, aforesaid program can be stored in a computer read/write memory medium, this program upon execution, performs to include the step of said method embodiment；And aforesaid storage medium includes: the various media that can store program code such as ROM, RAM, magnetic disc or CDs.
As it is shown in fig. 7, access the structural representation of an embodiment of gateway for WLAN of the present invention.In the present embodiment, WLAN access gateway WAG specifically includes: SIP session connection is set up unit 11, ppp negotiation unit 12, AAA authenticating unit 13, PMIP Path Setup unit 14, distribution address transmitting element 15 and user conversation and set up unit 16.
SIP session connection is set up unit 11 and is responsible for setting up SIP session connection via AC/BAS with terminal.The ppp negotiation unit 12 core network side apparatus being responsible for LTE network carries out ppp negotiation.AAA authenticating unit 13 is responsible for during ppp negotiation asking authentication to the aaa server of core network side.
PMIP Path Setup unit 14 is responsible for when authenticating successfully sending PMIP request to PDNGW, and the PMIP receiving PDNGW response is successfully accessed message.Distribution address transmitting element 15 is responsible for being successfully accessed message according to PMIP and the IP address that PDNGW is terminal distribution is sent to terminal, completes ppp negotiation.User conversation is set up unit 16 and is responsible for setting up from terminal via the user conversation of the business network of WAG, PDNGW to LTE network.
As shown in Figure 8, the structural representation of another embodiment of gateway is accessed for WLAN of the present invention.Compared with a upper embodiment, in the present embodiment, WAG also includes: session changing unit 17 and session information delete unit 18.Wherein, session changing unit 17 is responsible in described terminal after the coverage of WLAN is moved out to the coverage of LTE network, and the passage of the data stream of user conversation is changed to from described terminal via the business network of ServingGW, PDNGW to LTE network.Session information is deleted unit 18 and is responsible for after the Notification of Changes receiving described user conversation, deletes the data session information that described user conversation is relevant.
In another embodiment, the PMIP Path Setup unit in WAG can specifically include:
Visited place PMIP Path Setup unit, is used for the PDNGW transmission PMIP request to visited place when authenticating successfully, and the PMIP receiving the PDNGW response of visited place is successfully accessed message；And/or ownership place PMIP Path Setup unit, for sending PMIP request when authenticating successfully to the PDNGW of ownership place, and the PMIP receiving the PDNGW response of ownership place is successfully accessed message.
In another embodiment, WAG sets up from terminal to WAG in terminal access procedure, the tunnel of the business network of PDNGW to LTE, and before setting up tunnel, WAG can realize being similar to the effect of fire wall, stops the packet being not intended to pass through.It addition, for the packet from unknown IP address, WAG can also abandon, to guarantee the safety connected.After tunnel is set up, WAG then can carry out forwarding and and performing predetermined routing policy of packet as routing forwarding equipment.WAG can perform the Packet Filtering effect received according to the non-encrypted information in packet.By the above-mentioned functions of WAG, WAG can all play the effect of protection before and after tunnel is set up, and this is that the safety of network proposes preferable solution.
Under the network integration framework shown in Fig. 4, Fig. 9 shows the structural representation of an embodiment of inventive network emerging system.In the present embodiment, network integration system includes aforesaid WAG1, and is positioned at the AC/BAS2 and the PDNGW3 being positioned in the core net of LTE network at WLAN edge.When terminal accesses AC/BAS2, set up from terminal via the user conversation of the business network of WAG1, PDNGW3 to LTE network.
As shown in Figure 10, for the structural representation of another embodiment of inventive network emerging system.Compared with a upper embodiment, the network integration system of the present embodiment also includes the aaa server 4 being positioned in the core net of LTE network.Aaa server 4 is responsible for performing the certification between terminal and WAG, and the certification between WAG and described aaa server.
Explanation by above several embodiments to WLAN cut-in method, WAG and network integration system, can be appreciated that the present invention is little to the transformation of existing network compared to having gone out several network integration scheme given in 3GPP standard, being easy to seamlessly transitting of existing network customer service, the impact on user is less.
Finally should be noted that: above example is only in order to illustrate that technical scheme is not intended to limit；Although being described in detail the present invention with reference to preferred embodiment, those of ordinary skill in the field are it is understood that still can modify to the detailed description of the invention of the present invention or portion of techniques feature is carried out equivalent；Without deviating from the spirit of technical solution of the present invention, it all should be contained in the middle of the technical scheme scope that the present invention is claimed.
Claims (10)
1. a wireless local area network access method, including:
WLAN accesses gateway and sets up SIP session connection via access controller/BAS Broadband Access Server and terminal, and carries out ppp negotiation with the core network side apparatus of long-term evolving network；
During ppp negotiation, described WLAN accesses gateway and asks authentication to the aaa server of core network side；
Upon successful authentication, described WLAN accesses gateway and sends proxy mobile IP request to grouped data network gateway；
Described WLAN accesses the proxy-mobile IP of the gateway described grouped data network gateway response of reception and is successfully accessed message, and be successfully accessed, according to described proxy-mobile IP, the IP address that described grouped data network gateway distributes by message and be sent to described terminal, complete ppp negotiation, and set up from described terminal via described WLAN access gateway, the user conversation of described grouped data network gateway to the business network of described long-term evolving network.
Wireless local area network access method the most according to claim 1, wherein, when described terminal is after the coverage of WLAN is moved out to the coverage of long-term evolving network, gateway accesses described user conversation, and search described grouped data network gateway according to authorization message, and the passage of the data stream of described user conversation is changed to from described terminal via described gateway, described grouped data network gateway is to the business network of described long-term evolving network, and notify that described WLAN accesses gateway and deletes the data session information that described user conversation is relevant.
Wireless local area network access method the most according to claim 1, wherein, if described terminal needs to access the business network of the long-term evolving network of visited place, the most described terminal accesses the access controller/BAS Broadband Access Server in the WLAN of visited place, the access controller of described visited place/BAS Broadband Access Server accesses described aaa server, and receives, from described aaa server, the visited place insertion authority information that described aaa server issues；Access controller/the BAS Broadband Access Server of described visited place is according to described visited place insertion authority information, the address of the WLAN access gateway of visited place is obtained by the domain name system server of inquiry visited place, the address of the WLAN access gateway according to described visited place carries out the access of the WLAN access gateway of described visited place, and is accessed, by the WLAN of described visited place, the proxy-mobile IP passage that gateway sets up the grouped data network gateway of visited place.
Wireless local area network access method the most according to claim 1, wherein, if described terminal needs to access the business network of the long-term evolving network of visited place, the most described terminal accesses the evolved base station in the long-term evolving network of visited place, described evolved base station accesses described aaa server by mobile management entity, receive, from described aaa server, the visited place insertion authority information that described aaa server issues, and described visited place insertion authority information is sent to described terminal；Described terminal accesses the access controller/BAS Broadband Access Server of described visited place；Access controller/the BAS Broadband Access Server of described visited place is according to described visited place insertion authority information, the address of the WLAN access gateway of visited place is obtained by the domain name system server of inquiry visited place, the address of the WLAN access gateway according to described visited place carries out the access of the WLAN access gateway of described visited place, and is accessed, by the WLAN of described visited place, the proxy-mobile IP passage that gateway sets up the grouped data network gateway of visited place.
Wireless local area network access method the most according to claim 1, wherein, if described terminal needs the business network of the long-term evolving network of access belonging area, the most described terminal accesses the access controller/BAS Broadband Access Server in the WLAN of visited place, the access controller of described visited place/BAS Broadband Access Server accesses described aaa server, and receives, from described aaa server, visited place insertion authority information and the ownership place insertion authority information that described aaa server issues；Access controller/the BAS Broadband Access Server of described visited place is according to described visited place insertion authority information and ownership place insertion authority information, the WLAN being obtained visited place by the domain name system server of inquiry visited place accesses the address of gateway and the address of the grouped data network gateway of ownership place, the address of the address of the WLAN access gateway according to described visited place and the grouped data network gateway of ownership place carries out the access of the grouped data network gateway of described ownership place, and accessed, by the WLAN of described visited place, the proxy-mobile IP passage that gateway sets up the grouped data network gateway of ownership place.
6. WLAN accesses a gateway, including:
Unit is set up in SIP session connection, for setting up SIP session connection via access controller/BAS Broadband Access Server and terminal；
Ppp negotiation unit, carries out ppp negotiation for the core network side apparatus with long-term evolving network；
AAA authenticating unit, for asking authentication to the aaa server of core network side during ppp negotiation；
PMIP Path Setup unit, for sending proxy mobile IP request when authenticating successfully to grouped data network gateway, and the proxy-mobile IP receiving described grouped data network gateway response is successfully accessed message；
Distribution address transmitting element, is sent to described terminal for being successfully accessed message according to described proxy-mobile IP by the IP address that described grouped data network gateway is described terminal distribution, completes ppp negotiation；
User conversation sets up unit, accesses gateway, the user conversation of described grouped data network gateway to the business network of described long-term evolving network from described terminal via described WLAN for setting up.
WLAN the most according to claim 6 accesses gateway, wherein, also includes:
Session changing unit, for in described terminal after the coverage of WLAN is moved out to the coverage of long-term evolving network, the passage of the data stream of described user conversation is changed to from described terminal via gateway, the business network of described grouped data network gateway to described long-term evolving network；
Session information deletes unit, for after the Notification of Changes receiving described user conversation, deletes the data session information that described user conversation is relevant.
WLAN the most according to claim 6 accesses gateway, and wherein, described PMIP Path Setup unit specifically includes:
Visited place PMIP Path Setup unit, is used for the grouped data network gateway transmission proxy mobile IP request to visited place when authenticating successfully, and the proxy-mobile IP receiving the grouped data network gateway response of described visited place is successfully accessed message；And/or
Ownership place PMIP Path Setup unit, for sending proxy mobile IP request when authenticating successfully to the grouped data network gateway of ownership place, and the proxy-mobile IP receiving the grouped data network gateway response of described ownership place is successfully accessed message.
9. include that the arbitrary described WLAN of claim 6～8 accesses a network integration system for gateway, also include:
It is positioned at the access controller/BAS Broadband Access Server of wireless local network edge；
The grouped data network gateway being positioned in the core net of long-term evolving network；
When terminal accesses described access controller/BAS Broadband Access Server, set up and access gateway, the user conversation of described grouped data network gateway to the business network of described long-term evolving network from described terminal via described WLAN.
Network integration system the most according to claim 9, also includes:
The aaa server being positioned in the core net of long-term evolving network, accesses the certification between gateway for performing described terminal and described WLAN, and described WLAN accesses the certification between gateway and described aaa server.
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| EP3244588B1 (en) * | 2016-05-10 | 2021-06-23 | Nokia Solutions and Networks Oy | Support of dedicated core networks for wlan access |
| CN107484160B (en) * | 2016-06-07 | 2020-07-03 | 中国移动通信有限公司研究院 | Data aggregation method and device |
| CN113573375B (en) * | 2021-07-23 | 2022-08-02 | 中国电信股份有限公司 | Fusion gateway selection method and device, storage medium and electronic equipment |
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| EP2031826A2 (en) * | 2004-04-13 | 2009-03-04 | Research In Motion Limited | Method for a session initiation protocol push-to-talk terminal to indicate answer operating mode to an internet protocol push-to-talk network server |
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| EP2031826A2 (en) * | 2004-04-13 | 2009-03-04 | Research In Motion Limited | Method for a session initiation protocol push-to-talk terminal to indicate answer operating mode to an internet protocol push-to-talk network server |
| CN1960566A (en) * | 2005-11-01 | 2007-05-09 | 华为技术有限公司 | Evolution mobile communication network, method for managing mobility between 3GPP and non-3GPP access network |
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