CN103687049A - Multi-connection establishing method and system - Google Patents
Multi-connection establishing method and system Download PDFInfo
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- CN103687049A CN103687049A CN201210315435.6A CN201210315435A CN103687049A CN 103687049 A CN103687049 A CN 103687049A CN 201210315435 A CN201210315435 A CN 201210315435A CN 103687049 A CN103687049 A CN 103687049A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W76/10—Connection setup
- H04W76/12—Setup of transport tunnels
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W76/15—Setup of multiple wireless link connections
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Abstract
The invention discloses a multi-connection establishing method. The method comprises the following steps: BNG (broadband network gateway) transmits a PPP (point-to-point protocol) or PPPoE (point-to-point protocol over Ethernet) access request message to TWAG (trusted WLAN access gateway) through a L2TP (layer 2 tunneling protocol) tunnel after receiving the PPP or PPPoE access request message from UE (user equipment); the TWAG establishes PDN (packet data network) connection of the UE with the PDN gateway according to APN (access point name) information to be accessed by the UE and sends IP address information allocated by the PDN gateway for the UE to the UE through the BNG when determining that the PDN connection of the UE is allowed to be established according to the APN information to be accessed by the UE as well as APN access list information, wherein the BNG and the TWAG establish different sessions for different UEs carrying identical APN information on the same L2TP parameter connection or establish different sessions for different UEs carrying different APN information on the same L2TP tunnel. The invention also discloses a multi-connection establishing system. The method and the system provided by the invention realize multi-connection construction based on APN information, and expand the application of FMC (fixed mobile convergence) architecture.
Description
Technical field
The present invention relates to the multi-link technology of setting up, relate in particular to a kind of method and system of multi-link foundation.
Background technology
Along with development and the continuous reinforcement of user to business demand of network technology, terminal develops to multimodeization gradually.Multimode terminal can be chosen in dissimilar access network access, to carry multifarious business.Because different networks connects, there is different characteristics and transmittability, thereby can meet better the multifarious demand of user multi-service.Multimode terminal can be realized the seamless link between dissimilar radio access network, as honeycomb universal mobile telecommunications system (UMTS, Universal Mobile Telecommunication System)/EDGE (Enhanced Data Rate for GSM Evolution, enhanced data rates for gsm (G1obal System for Mobile communication, global system for mobile communications) evolution technology)/general packet radio service (GPRS, General Packet Radio Service) technology and the (IEEE of IEEE-USA, Institute of Electrical and Electronics Engineer) 802.11 WLAN (wireless local area network) (WLAN, Wireless Local Area Network) 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 (VoIP, Voice over Internet Protocol) application, can also use overlapping cellular network simultaneously, carries out audio call or media interviews.
At present, the international normal structure broadband (BBF of forum, Broadband Forum) and third generation partner program (3GPP, 3rd Generation Partnership Project) be fixed network and mobile network and merging (FMC, Fixed Mobile Convergence) standardization effort, the scene relating to comprises 3GPP subscriber equipment (UE, User Equipment) authentication, address assignment and the policy control from BBF network insertion by residential gateway (RG, Residential Gateway).In verification process, 3GPP UE initiates access authentication as 802.1x customer side to RG, now RG is as 802.1x authenticator and remote customer dialing authentication system (RADIUS, Remote Authentication Dial In User Service) authentication request is initiated to BBF aaa server (Authentication Authorization Accounting, authentication, mandate, charging) server in customer side.In Address requests process, the address request that 3GPP UE initiates is via wideband network gateway (BNG, Broadband Network Gateway) to packet data network gateway (PDN-GW, Packet Data Network Gateway) IP address requesting.Wherein, between BNG and PDN-GW, set up S2a session, and by GTP (GPRS Tunneling Protocol, GPRS (General Packet Radio Service, GPRS) tunnel protocol) or proxy mobile internet protocol (PMIP, Proxy Mobile IP) tunnel realize.
In prior art, each user BNG need and PDN-GW between set up S2a session.In order to support this scene in existing network, need to upgrade to all BNG equipment, larger on existing network impact, for addressing this problem, quote fixed network IAD and (for example trusted WLAN IAD (TWAG, Trusted WLAN Access Gateway)), the schematic network structure after introducing TWAG as shown in Figure 1.After introducing fixed network IAD, can not need BNG equipment to carry out mass upgrade, can reduce the impact on existing network as far as possible.
After mobile subscriber accesses by fixed network, likely can access different mobile service packet networks simultaneously, now can set up a plurality of packet data network (PDN, Packet Data Network) and connect.Under existing framework, problem how to distinguish different PDN connections not yet solves.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method and system of multi-link foundation, can be that different UEs is set up different sessions at same L2TP Tunnel according to the APN information of UE wish access.
For achieving the above object, technical scheme of the present invention is achieved in that
A method for multi-link foundation, described method comprises:
Wideband network gateway BNG receives after the point-to-point protocol PPP or Point-to-Point Protocol over Ethernet PPPoE access request message of user equipment (UE) initiation, by L2TP Tunnel, is transmitted to and is trusted WLAN (wireless local area network) IAD TWAG;
Described TWAG determines while allowing to set up the packet data network PDN connection of described UE, the PDN that sets up described UE with PDN Gateway according to the APN APN information of described UE wish access is connected, and is that the IP address information that described UE distributes sends to described UE by described PDN Gateway.
Preferably, described method also comprises:
Described BNG receives after the PPP or PPPoE access request message of described UE initiation, determine while not setting up Level 2 Tunnel Protocol L2TP Tunnel between described BNG and described TWAG, according to APN information or the L2TP parameter information of the described UE wish access of obtaining, and between described TWAG, set up the L2TP Tunnel of described UE.
Preferably, described method also comprises:
Between described BNG and described BWAG in described L2TP Tunnel for l2tp session is set up in the PPP of described UE or PPPoE request;
Described TWAG is that the IP address information that described UE distributes sends to described UE by described l2tp session and through described BNG by described PDN Gateway.
Preferably, described method also comprises:
Described TWAG organizes 3GPP authentication and authorization charging aaa server to initiate the authentication request based on described UE to third generation partner program, described 3GPP aaa server sends described UE authentication success message or authorization messages by the BBF of broadband forum aaa server to described TWAG by rear in the authentication of described UE, carries APN access list information in described UE authentication success message or authorization messages.
Preferably, described method also comprises:
In described PPP or PPPoE access request message, carry the APN information of described UE wish access; The PPP that described TWAG initiates from described UE or PPPoE access request message are obtained the APN information of described UE wish access.
Preferably, described method also comprises:
Described BNG initiates the authentication request based on described UE to BBF aaa server, and described BBF aaa server organizes 3GPPAAA server to send the authentication request based on described UE to third generation partner program;
Described 3GPP aaa server, after the authentication based on described UE is passed through, sends described UE authentication success message or authorization messages by described BBF aaa server to described BNG; In described UE authentication success message or authorization messages, carry L2TP parameter information.
Preferably, described method also comprises:
Described TWAG determines according to the APN information of obtained described UE wish access and APN access list information the PDN connection that allows to set up described UE.
Preferably, described method also comprises:
Described TWAG, in the internet protocol control protocol ipcp negotiation process of carrying out with described UE, is that the IP address information that described UE distributes sends to described UE by described PDN Gateway.
Preferably, described method also comprises:
Between described BNG and described TWAG, for carrying the different UEs of identical APN information, in same L2TP Tunnel, set up different sessions;
Or, between described BNG and described TWAG, for carrying the different UEs of different APN information, in same L2TP Tunnel, set up different sessions;
Or, between described BNG and described TWAG, for carrying the different UEs of identical APN information, set up different L2TP Tunnel.
Preferably, described method also comprises:
Described TWAG safeguards the L2TP Tunnel of described UE and the binding relationship that session is connected with GTP/PMIP; Described GTP/PMIP is connected to being connected between described BNG and described PDN Gateway.
A system for multi-link foundation, described system comprises BNG, TWAG and PDN Gateway, wherein:
BNG, for receiving after the PPP or PPPoE access request message of UE initiation, is transmitted to TWAG by L2TP Tunnel;
Described TWAG, while allowing to set up the PDN connection of described UE for determining, the PDN that sets up described UE with PDN Gateway according to the APN information of described UE wish access is connected, and is that the IP address information that described UE distributes sends to described UE by described PDN Gateway.
Preferably, described BNG after receiving PPP that UE initiates or PPPoE access request message also for, determine while not setting up L2TP Tunnel between described BNG and described TWAG, according to APN information or the L2TP parameter information of the described UE wish access of obtaining, and between described TWAG, set up the L2TP Tunnel of described UE.
Preferably, described BNG is that the PPP of described UE or PPPoE request send l2tp session to described BWAG and set up request in described L2TP Tunnel;
Described TWAG also for, by described PDN, be that the IP address information that described UE distributes sends to described UE by described L2TP Tunnel and through described BNG.
Preferably, described system also comprises 3GPP aaa server and BBF aaa server, wherein:
Described TWAG also for, to described BBF aaa server, initiate the authentication request based on UE;
Described BBF aaa server also for, the authentication request based on UE that described TWAG is sent sends to described 3GPP aaa server, and receives UE authentication success message or the authorization messages that described 3GPP AAA sends and send to described TWAG;
Described 3GPP aaa server also for, in the authentication of described UE, by rear, by described BBF aaa server, to described TWAG, send UE authentication success message or authorization messages, in described UE authentication success message or authorization messages, carry APN access list information.
Preferably, described BNG also for, to described BBF aaa server, initiate the authentication request based on described UE, described BBF aaa server forwards the authentication request of initiating based on described UE to described 3GPP aaa server;
Described 3GPP aaa server also for, after the authentication based on described UE is passed through, by described BBF aaa server, to described BNG, send described UE authentication success message or authorization messages; In described UE authentication success message or authorization messages, carry L2TP parameter information.
Preferably, described TWAG also for, according to the APN information of obtained described UE wish access and APN access list information, determine and allow the PDN that sets up described UE to connect.
Preferably, described TWAG also for, in the ipcp negotiation process of carrying out with described UE, by described PDN Gateway, be that the IP address information that described UE distributes sends to described UE.
Preferably, between described BNG and described TWAG, for carrying the different UEs of identical APN information, in same L2TP Tunnel, set up different sessions;
Or, between described BNG and described TWAG, for carrying the different UEs of different APN information, in same L2TP Tunnel, set up different sessions;
Or, between described BNG and described TWAG, for carrying the different UEs of identical APN information, set up different L2TP Tunnel.
In the present invention, BNG receives the point-to-point protocol (PPP that UE initiates, Point-to-Point Protocol) or after Point-to-Point Protocol over Ethernet (PPPoE, Point-to-Point Protocol over Ethernet) access request message, by L2TP Tunnel, be transmitted to TWAG; TWAG is according to the APN (APN of obtained UE wish access, Access Point Name) information and APN access list information are determined while allowing to set up the PDN connection of UE, the PDN that sets up described UE with PDN Gateway according to the APN information of UE wish access is connected, and is that the IP address information that UE distributes sends to described UE by BNG by PDN Gateway.Wherein, between BNG and TWAG, for carrying the different UEs of identical APN information, in same Level 2 Tunnel Protocol (L2TP, Layer 2Tunneling Protocol) tunnel, set up different sessions; Or, between BNG and TWAG, for carrying the different UEs of different APN information, in same L2TP Tunnel, set up different sessions; Or, between BNG and TWAG, for carrying the different UEs of identical APN information, set up different L2TP Tunnel.TWAG safeguards the L2TP Tunnel of UE and the binding relationship that session is connected with GTP/PMIP.The present invention has realized the multi-link foundation based on APN information, has expanded the application of FMC framework, can pass through the corresponding session of APN message identification.
Accompanying drawing explanation
Fig. 1 is FMC configuration diagram;
Fig. 2 is the flow chart of method of the multi-link foundation of the embodiment of the present invention one;
Fig. 3 is the flow chart of method of the multi-link foundation of the embodiment of the present invention two;
Fig. 4 is according to the encapsulation of the packet of the method for the multi-link foundation of the embodiment of the present invention and decapsulation schematic diagram.
Embodiment
Basic thought of the present invention is: BNG receives after the PPP or PPPoE access request message of UE initiation, is transmitted to TWAG; TWAG determines that while allowing to set up the PDN connection of UE, the PDN that sets up described UE with PDN Gateway according to the APN information of UE wish access is connected, and is that the IP address information that UE distributes sends to described UE by PDN Gateway.Wherein, between BNG and TWAG, for carrying the different UEs of identical APN information, in same L2TP Tunnel, set up different sessions; Or, between BNG and TWAG, for carrying the different UEs of different APN information, in same L2TP Tunnel, set up different sessions; Or, between BNG and TWAG, for carrying the different UEs of identical APN information, set up different L2TP Tunnel.TWAG safeguards the L2TP Tunnel of UE and the binding relationship that session is connected with GTP/PMIP.TWAG, in IPCP (IP (Internet Protocol, Internet Protocol) Control Protocol, the internet protocol control protocol) negotiations process of carrying out with UE, is that the IP address that UE distributes sends to described UE by PDN Gateway.
Specifically comprise: mobile network user equipment UE is initiated PPP or PPPoE access request, carry the APN information that needs access.
BNG sends to the L2TP parameter information carrying in the described UE authentication success message of BNG or authorization messages according to the APN information of carrying in described UE request message or message identifying and/or aaa server (3GPP aaa server) server, set up the L2TP Tunnel of described UE to TWAG request.That is,, if there is not corresponding L2TP Tunnel between BNG and TWAG, first set up L2TP Tunnel.
TWAG sends to the APN access list information of carrying in the described UE authentication success message of TWAG or authorization messages according to the UE identification information of carrying in UE request message or message identifying, APN information and/or aaa server (3GPP aaa server) server, determine whether that user sets up PDN with 3GPP network gateway and is connected.If TWAG judgement allows the described PDN that sets up described UE to connect, the PDN that TWAG sets up described UE with the APN information of carrying in UE request message or message identifying to mobile network gateway (comprising PDN GW) request according to UE information is connected, and the IP address getting is sent to UE by L2TP agreement via BNG.TWAG safeguards the L2TP Tunnel of UE and the binding relationship that session is connected with GTP/PMIP.
For making the object, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
Embodiment mono-
Fig. 2 is the flow chart of method of the multi-link foundation of the embodiment of the present invention one, and as shown in Figure 2, the method for the multi-link foundation of this example comprises the following steps:
Step 201, UE initiates PPPoE access request; Between UE and BNG, complete PPPoE and consult, obtain pppoe session sign (PPPoE Session ID).
Step 202, completes ppp link control protocol (LCP, Link Control Protocol) and consults between UE and BNG.
Step 203, UE carries APN information mutual with BNG, BBF aaa server, 3GPP aaa server, complete the local authentication of UE identity, 3GPP aaa server issues Level 2 Tunnel Protocol (L2TP, Layer 2Tunneling Protocol) parameter information to BNG.
Step 204, carries out L2TP Tunnel foundation between BNG and TWAG.
If had L2TP Tunnel between this BNG and TWAG or had the tunnel of identical APN information, this step is omitted.Certainly, if had L2TP Tunnel between BNG and TWAG or there is the tunnel of identical APN information, in step 203, no longer send L2TP parameter information.
Step 205, UE carries APN information mutual with TWAG, BBF aaa server, 3GPP aaa server, completes the local authentication of UE identity, between BNG and TWAG, sets up l2tp session.3GPP aaa server confirms in authenticated user identity whether this UE user allows to access this APN, if authentication success, 3GPP aaa server is replied authentication success response message by BBF aaa server to TWAG.
Step 206, TWAG issues the APN information of carrying in UE authentication request and 3GPP aaa server APN access list by BBF aaa server is compared, and compares successfully TWAG and PDN GW and completes alternately GTP session establishment.This step determines whether to allow UE access according to APN information and APN access list.
Step 207, UE and TWAG complete IP address assignment alternately, and TWAG sends to UE by IP address in the ipcp negotiation process of carrying out with UE.
Implement two
The present embodiment provides the user of the 3GPP UE accessing from fixed network to authenticate (method two, APN authenticates before connecting foundation) and a method that APN connection is set up, and wherein 3GPP UE is 802.1X client, and RG is 802.1X authenticator.Fig. 3 is the flow chart of method of the multi-link foundation of the embodiment of the present invention two, and as shown in Figure 3, the method for the multi-link foundation of this example comprises the following steps:
Step 301,3GPP UE sends authentication protocol to RG and starts (EAPoL-Start) message, by 802.1X agreement, authenticates.UE is 802.1X client, and RG is 802.1X authenticator.
Step 302, receives after the EAPoL Start message of UE transmission, and RG sends authentication protocol ID request (EAP Identity Request) message to UE, for notifying UE report of user name.
Wherein, receive after the EAP Identity Request message of RG transmission, UE reply authentication protocol ID replys (EAP Identity Response) message and, to RG, wherein in message, carries user name.
Subsequently, RG is encapsulated into the EAP Identity Response message receiving in authentication access request (RADIUS Access Request) message, meanwhile, RG is still encapsulated into the MAC Address of UE in RADIUS Access Request message, then sends to BNG.
Step 303, BNG sends to corresponding TWAG by the RADIUS Access Request message receiving from RG according to the network address sign (NAI, Network Address Identifier) of UE as radius proxy (Proxy);
Step 304, TWAG sends to BBF aaa server by the RADIUS Access Request message of receiving from BNG according to the NAI of UE as RADIUS Proxy, or at TWAG and 3GPP aaa server, have under the scene of interface, TWAG sends to 3GPP aaa server by message according to the NAI of UE;
Step 305, BBF aaa server according to the NAI of UE by the RADIUS Access Request message repeating of receiving from BNG to 3GPP aaa server.If BBF network is used radius protocol, and 3GPP network is used DIAMETER agreement, between BBF aaa server and 3GPP aaa server, exists translation agency (TA, Translation Agent) to carry out protocol conversion.
If 3GPP UE is at 3GPP aaa server authentication success, 3GPP aaa server is replied authentication success response message and carries APN access list to BBF aaa server, BBF aaa server is replied authentication success effect message and carries APN access list to TWAG, further, TWAG replys BNG authentication success, BNG replys authentication success to RG, and RG replys authentication success to UE.At UE, pass through under the condition of authentication, RG, BNG, TWAG record the International Mobile Station Equipment Identification (IMSE, International Mobile Equipment Identity) of UE simultaneously.
If there is L2TP Tunnel between this BNG and TWAG or there is the tunnel of identical APN information, can skip this step, in above-mentioned steps 308, also can no longer send L2TP parameter information.
In this step, TWAG can select not with the mutual directly return authentication success message of BBF aaa server to user.
In the present invention, above-mentioned authentication success message can be also authorization messages
Implement three
The present embodiment provides from the 3GPP UE of fixed network access and has connected foundation, the encapsulation of UE packet and decapsulation and transmission flow process.Fig. 4 is according to the encapsulation of the packet of the method for the multi-link foundation of the embodiment of the present invention and decapsulation schematic diagram, and as shown in Figure 4, under the application of the method for the multi-link foundation of the embodiment of the present invention, step comprises:
Step 401,3GPP UE sends packet after successfully connecting based on embodiment mono-or embodiment bis-.Particularly, 3GPP UE stamps corresponding PPPoE according to type of service and encapsulates and send to BNG.The form of packet, referring to Fig. 4, repeats no more its CONSTRUCTED SPECIFICATION here.
Step 402, RG receives after the packet of UE, directly forwards.
Step 403, BNG receives after the packet of UE, according to the PPPoE packaging information of message, carries out L2TP encapsulation, sends to corresponding TWAG (consistent with the TWAG that is connected process of establishing participation with authentication).The form of packet, referring to Fig. 4, repeats no more its CONSTRUCTED SPECIFICATION here.
Step 404, TWAG receives after the packet of UE, and decapsulation packet obtains Tunnel ID and Session ID in the L2TP head of message, and by the IP bag Reseal in message, by the tunnel between TWAG and PND GW (as GTP tunnel, PMIP tunnel), send to PND GW.
Step 405, PDN GW receives the packet of 3GPP UE.
The present invention has also recorded a kind of system of multi-link foundation, and described system comprises BNG, TWAG and PDN Gateway, wherein:
BNG, for receiving after the PPP or PPPoE access request message of UE initiation, is transmitted to TWAG by L2TP Tunnel;
Described TWAG, while allowing to set up the PDN connection of described UE for determining, the PDN that sets up described UE with PDN Gateway according to the APN information of described UE wish access is connected, and is that the IP address information that described UE distributes sends to described UE by described PDN Gateway.
Wherein, described BNG after receiving PPP that UE initiates or PPPoE access request message also for, determine while not setting up L2TP Tunnel between described BNG and described TWAG, according to APN information or the L2TP parameter information of the described UE wish access of obtaining, and between described TWAG, set up the L2TP Tunnel of described UE.
Between described BNG and described BWAG in described L2TP Tunnel for l2tp session is set up in the PPP of described UE or PPPoE request;
Described TWAG is that the IP address information that described UE distributes sends to described UE by described l2tp session and through described BNG by described PDN Gateway.
Described system also comprises 3GPPAAA server and BBFAAA server, wherein:
Described TWAG also for, to described BBF aaa server, initiate the authentication request based on UE;
Described BBF aaa server also for, the authentication request based on UE that described TWAG is sent sends to described 3GPP aaa server, and receives UE authentication success message or the authorization messages that described 3GPP AAA sends and send to described TWAG;
Described 3GPP aaa server also for, in the authentication of described UIE, by rear, by described BBF aaa server, to described TWAG, send UE authentication success message or authorization messages, in described UE authentication success message or authorization messages, carry APN access list information.
The PPP that TWAG initiates from described UE or PPPoE access request message are obtained the APN information of described UE wish access.
Wherein, described BNG also for, to described BBF aaa server, initiate the authentication request based on described UE, described BBF aaa server forwards the authentication request of initiating based on described UE to described 3GPP aaa server;
Described 3GPP aaa server also for, after the authentication based on described UE is passed through, by described BBF aaa server, to described BNG, send described UE authentication success message or authorization messages; In described UE authentication success message or authorization messages, carry L2TP parameter information.
Wherein, described TWAG also for, according to the APN information of obtained described UE wish access and APN access list information, determine and allow the PDN that sets up described UE to connect.
Wherein, described TWAG also for, in the ipcp negotiation process of carrying out with described UE, by described PDN Gateway, be that the IP address information that described UE distributes sends to described UE.
Wherein, between described BNG and described TWAG, for carrying the different UEs of identical APN information, in same L2TP Tunnel, set up different sessions;
Or, between described BNG and described TWAG, for carrying the different UEs of different APN information, in same L2TP Tunnel, set up different sessions;
Or, between described BNG and described TWAG, for carrying the different UEs of identical APN information, set up different L2TP Tunnel.
Those skilled in the art are to be understood that, the system of multi-link foundation of the present invention realizes on existing mobile communications network basis, the structure of system is identical with existing FMC framework, the system of multi-link foundation of the present invention has been carried out corresponding functions expanding to the related network elements in existing mobile communications network and has been realized, in the present invention, only to Function Extension network element carried out emphasis description.The system of multi-link foundation of the present invention can be with reference to the associated description of the method for aforesaid multi-link foundation of the present invention and is understood, its network architecture can be with reference to existing mobile communication network structure the structure as shown in based on Fig. 1 and understanding.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.
Claims (18)
1. a method for multi-link foundation, is characterized in that, described method comprises:
Wideband network gateway BNG receives after the point-to-point protocol PPP or Point-to-Point Protocol over Ethernet PPPoE access request message of user equipment (UE) initiation, by L2TP Tunnel, is transmitted to and is trusted WLAN (wireless local area network) IAD TWAG;
Described TWAG determines while allowing to set up the packet data network PDN connection of described UE, the PDN that sets up described UE with PDN Gateway according to the APN APN information of described UE wish access is connected, and is that the IP address information that described UE distributes sends to described UE by described PDN Gateway.
2. method according to claim 1, is characterized in that, described method also comprises:
Described BNG receives after the PPP or PPPoE access request message of described UE initiation, determine while not setting up Level 2 Tunnel Protocol L2TP Tunnel between described BNG and described TWAG, according to APN information or the L2TP parameter information of the described UE wish access of obtaining, and between described TWAG, set up the L2TP Tunnel of described UE.
3. method according to claim 1, is characterized in that, described method also comprises:
Between described BNG and described BWAG in described L2TP Tunnel for l2tp session is set up in the PPP of described UE or PPPoE request;
Described TWAG is that the IP address information that described UE distributes sends to described UE by described l2tp session and through described BNG by described PDN Gateway.
4. according to the method described in claims 1 to 3 any one, it is characterized in that, described method also comprises:
Described TWAG organizes 3GPP authentication and authorization charging aaa server to initiate the authentication request based on described UE to third generation partner program, described 3GPP aaa server sends described UE authentication success message or authorization messages by the BBF of broadband forum aaa server to described TWAG by rear in the authentication of described UE, carries APN access list information in described UE authentication success message or authorization messages.
5. method according to claim 4, is characterized in that, described method also comprises:
In described PPP or PPPoE access request message, carry the APN information of described UE wish access; The PPP that described TWAG initiates from described UE or PPPoE access request message are obtained the APN information of described UE wish access.
6. method according to claim 4, is characterized in that, described method also comprises:
Described BNG initiates the authentication request based on described UE to BBF aaa server, and described BBF aaa server organizes 3GPP aaa server to send the authentication request based on described UE to third generation partner program;
Described 3GPP aaa server, after the authentication based on described UE is passed through, sends described UE authentication success message or authorization messages by described BBF aaa server to described BNG; In described UE authentication success message or authorization messages, carry L2TP parameter information.
7. method according to claim 1, is characterized in that, described method also comprises:
Described TWAG determines according to the APN information of obtained described UE wish access and APN access list information the PDN connection that allows to set up described UE.
8. method according to claim 1, is characterized in that, described method also comprises:
Described TWAG, in the internet protocol control protocol ipcp negotiation process of carrying out with described UE, is that the IP address information that described UE distributes sends to described UE by described PDN Gateway.
9. method according to claim 5, is characterized in that, described method also comprises:
Between described BNG and described TWAG, for carrying the different UEs of identical APN information, in same L2TP Tunnel, set up different sessions;
Or, between described BNG and described TWAG, for carrying the different UEs of different APN information, in same L2TP Tunnel, set up different sessions;
Or, between described BNG and described TWAG, for carrying the different UEs of identical APN information, set up different L2TP Tunnel.
10. according to the method described in claim 6 or 7, it is characterized in that, described method also comprises:
Described TWAG safeguards the L2TP Tunnel of described UE and the binding relationship that session is connected with GTP/PMIP; Described GTP/PMIP is connected to being connected between described BNG and described PDN Gateway.
The system of 11. 1 kinds of multi-link foundation, is characterized in that, described system comprises BNG, TWAG and PDN Gateway, wherein:
BNG, for receiving after the PPP or PPPoE access request message of UE initiation, is transmitted to TWAG by L2TP Tunnel;
Described TWAG, while allowing to set up the PDN connection of described UE for determining, the PDN that sets up described UE with PDN Gateway according to the APN information of described UE wish access is connected, and is that the IP address information that described UE distributes sends to described UE by described PDN Gateway.
12. systems according to claim 11, is characterized in that:
Described BNG after receiving PPP that UE initiates or PPPoE access request message also for, determine while not setting up L2TP Tunnel between described BNG and described TWAG, according to APN information or the L2TP parameter information of the described UE wish access of obtaining, and between described TWAG, set up the L2TP Tunnel of described UE.
13. systems according to claim 11, is characterized in that:
Described BNG is that PPP or the PPPoE request of described UE sends l2tp session foundation request to described BWAG in described L2TP Tunnel;
Described TWAG also for, by described PDN, be that the IP address information that described UE distributes sends to described UE by described L2TP Tunnel and through described BNG.
14. according to claim 11 to the system described in 13 any one, it is characterized in that, described system also comprises 3GPP aaa server and BBF aaa server, wherein:
Described TWAG also for, to described BBF aaa server, initiate the authentication request based on UE;
Described BBF aaa server also for, the authentication request based on UE that described TWAG is sent sends to described 3GPP aaa server, and receives UE authentication success message or the authorization messages that described 3GPP AAA sends and send to described TWAG;
Described 3GPP aaa server also for, in the authentication of described UE, by rear, by described BBF aaa server, to described TWAG, send UE authentication success message or authorization messages, in described UE authentication success message or authorization messages, carry APN access list information.
15. systems according to claim 14, it is characterized in that, described BNG also for, to described BBF aaa server, initiate the authentication request based on described UE, described BBF aaa server forwards the authentication request of initiating based on described UE to described 3GPP aaa server;
Described 3GPP aaa server also for, after the authentication based on described UE is passed through, by described BBF aaa server, to described BNG, send described UE authentication success message or authorization messages; In described UE authentication success message or authorization messages, carry L2TP parameter information.
16. systems according to claim 15, is characterized in that, described TWAG also for, according to the APN information of obtained described UE wish access and APN access list information, determine and allow the PDN that sets up described UE to connect.
17. systems according to claim 15, is characterized in that, described TWAG also for, in the ipcp negotiation process of carrying out with described UE, by described PDN Gateway, be that the IP address information that described UE distributes sends to described UE.
18. systems according to claim 15, is characterized in that:
Between described BNG and described TWAG, for carrying the different UEs of identical APN information, in same L2TP Tunnel, set up different sessions;
Or, between described BNG and described TWAG, for carrying the different UEs of different APN information, in same L2TP Tunnel, set up different sessions;
Or, between described BNG and described TWAG, for carrying the different UEs of identical APN information, set up different L2TP Tunnel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210315435.6A CN103687049B (en) | 2012-08-30 | 2012-08-30 | The method and system that multi-connection is established |
| PCT/CN2013/082101 WO2014032542A1 (en) | 2012-08-30 | 2013-08-22 | Method and system for setting up multiple connections |
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| CN201210315435.6A CN103687049B (en) | 2012-08-30 | 2012-08-30 | The method and system that multi-connection is established |
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| WO2018192528A1 (en) * | 2017-04-18 | 2018-10-25 | 华为技术有限公司 | Network access method and apparatus, and network device |
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| CN115396510B (en) * | 2022-08-12 | 2024-03-15 | 西安广和通无线通信有限公司 | Communication method and communication module |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103687049B (en) | 2019-07-09 |
| WO2014032542A9 (en) | 2014-04-10 |
| WO2014032542A1 (en) | 2014-03-06 |
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