CN103188667A - WLAN access method, WAG and network fusion system - Google Patents
WLAN access method, WAG and network fusion system Download PDFInfo
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- CN103188667A CN103188667A CN2011104426300A CN201110442630A CN103188667A CN 103188667 A CN103188667 A CN 103188667A CN 2011104426300 A CN2011104426300 A CN 2011104426300A CN 201110442630 A CN201110442630 A CN 201110442630A CN 103188667 A CN103188667 A CN 103188667A
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Abstract
The invention relates to a WLAN (wireless local area network) access method which comprises the steps that a WAG (WLAN access gateway) establishes an SIP (session initiation protocol) with a terminal through an AC/BAS (access control/broadband access server), and conducts PPP (point-to-point protocol) negotiation with equipment on a core network side of an LTE (long term evolution) network; during the PPP negotiation, the WAG requests authorization for an AAA (against all authority) server on the core network side; when the authorization is successful, the WAG sends a PMIP (proxy mobile internet protocol) request to a PDN GW (packet data network gateway); the WAG receives a PMIP access success message responded by the PDN GW, and sends an IP (internet protocol) address distributed by the PDN GW to the terminal according to the PMIP access success message to accomplish the PPP negotiation; and a user session from the terminal to a service network of the LTE network through the WAG and the PDN GW is established. The invention relates to the WAG and a network fusion system. According to the WLAN access method, the WAG and the network fusion system, effective fusion of service functions of a WLAN and the LTE network is achieved by combining the characteristic of the available network; the available network is improved as less as possible; and an influence on a user is reduced.
Description
Technical field
The present invention relates to the wideband wireless mobile communication technical field, relate in particular to a kind of wireless local area network access method, WLAN (wireless local area network) IAD (WLAN Access Gateway, be called for short WAG) and WLAN (wireless local area network) (Wireless LAN, be called for short WLAN)/network integration system of long-term evolving network (Long Term Evolution is called for short LTE).
Background technology
At present, domestic telecommunication operator has disposed the network of code division multiple access (Code Division Multiple Access is called for short CDMA) and WLAN fusion in existing network, and still is in the further discussion about the research of WLAN and LTE UNE scheme.Aspect standard, third generation partner program (being called for short 3GPP) normal structure has provided the architectural schemes of 3GPP network and wlan network fusion, and the standard fusion architecture scheme of several LTE network and non-3GPP network, briefly introduces it below respectively.
1) 3GPP TS23.234 standard has provided the architectural schemes of 3GPP network and wlan network fusion (being called for short I-WLAN), as shown in Figure 1.In the I-WLAN scheme, wlan network can connect the 3GPP core net by dual mode: (1) WLAN Direct IP Access: terminal directly is linked into the local IP network from WLAN AN, and carries out authentication and authorization in the 3GPP net.(2) WLAN 3GPP IP Access: after terminal inserts wlan network, by setting up and packet data gateway (Packet Data Gateway, abbreviation PDG) IP security protocol (IP Security Protocol, be called for short IPSec) tunnel, connect the business that 3GPP operator provides, namely terminal must could be visited outside IP network through the 3GPP core net.
2) 3GPP TS23.402 standard has provided the architectural schemes of LTE network and the non-3GPP network integration, mainly comprises three kinds of schemes: S2a scheme, S2b scheme and S2c scheme.Wherein, S2a and S2b scheme as shown in Figure 2, the S2c scheme is as shown in Figure 3.
Under the situation of not considering the S2c scheme, the main distinction of credit network and non-credit network insertion is its reforming mode: the couple in router that the credit network insertion need be transformed access network makes it to support the MAG function of PMIPv6 or the FA function of MIPv4; Handle mobility but not the credit network insertion need increase the ePDG node, and need terminal to support UE to the ipsec tunnel between the ePDG.
In the integration program of several wlan networks of above-mentioned proposition and LTE network, the wlan network that the S2a scheme is aimed at credit proposes, and it is bigger to the transformation of WLAN fixed network, and the fail safe of network is not proposed good solution; And the S2b scheme proposes at the wlan network of non-credit, need not fixed network be transformed, but still needs terminal to support ipsec protocol to guarantee the fail safe of data, has therefore increased the requirement to terminal capability, certain customers that can not compatible existing network.
Summary of the invention
The objective of the invention is to propose a kind of wireless local area network access method, gateway and network integration system, can realize effective fusion of the business function of wlan network and LTE network in conjunction with the characteristics of existing network, and try one's best and little existing network is improved and reduces influence to the user.
For achieving the above object, the invention provides a kind of wireless local area network access method, comprising:
The WLAN (wireless local area network) IAD is set up the 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;
In the ppp negotiation process, described WLAN (wireless local area network) IAD is to the aaa server request authentication of core network side;
When the authentication success, described WLAN (wireless local area network) IAD sends the proxy-mobile IP request to grouped data network gateway;
Described WLAN (wireless local area network) IAD receives the proxy-mobile IP access success message that described grouped data network gateway is replied, and insert success message according to described proxy-mobile IP described grouped data network gateway IP address allocated is sent to described terminal, finish ppp negotiation, and set up from described terminal via described WLAN (wireless local area network) IAD, the described grouped data network gateway user conversation to the business network of described long-term evolving network.
Further, after described terminal is moved out to the coverage of long-term evolving network from the coverage of WLAN (wireless local area network), gateway inserts described user conversation, and search described grouped data network gateway according to authorization message, and the passage of the data flow of described user conversation changed to from described terminal via described gateway, the described grouped data network gateway business network to described long-term evolving network, and notify described WLAN (wireless local area network) IAD to delete the relevant data session information of described user conversation.
Further, if described terminal need insert the business network of the long-term evolving network on visit ground, then described terminal inserts the access controller/BAS Broadband Access Server in the WLAN (wireless local area network) of visiting ground, access controller/the BAS Broadband Access Server on described visit ground inserts described aaa server, and receives the visit ground insertion authority information that described aaa server issues from described aaa server; Access controller/the BAS Broadband Access Server on described visit ground is according to described visit ground insertion authority information, obtain the address of the WLAN (wireless local area network) IAD on visit ground by the domain name system server on inquiry visit ground, carry out the access of the WLAN (wireless local area network) IAD on described visit ground according to the described address of visiting the WLAN (wireless local area network) IAD on ground, and be established to the proxy-mobile IP passage of the grouped data network gateway on visit ground by the WLAN (wireless local area network) IAD on described visit ground.
Further, if described terminal need insert the business network of the long-term evolving network on visit ground, then described terminal inserts the evolved base station in the long-term evolving network of visiting ground, described evolved base station inserts described aaa server by mobile management entity, receive the visit ground insertion authority information that described aaa server issues from described aaa server, and described visit ground insertion authority information is sent to described terminal; Described terminal inserts the access controller/BAS Broadband Access Server on described visit ground; Access controller/the BAS Broadband Access Server on described visit ground is according to described visit ground insertion authority information, obtain the address of the WLAN (wireless local area network) IAD on visit ground by the domain name system server on inquiry visit ground, carry out the access of the WLAN (wireless local area network) IAD on described visit ground according to the described address of visiting the WLAN (wireless local area network) IAD on ground, and be established to the proxy-mobile IP passage of the grouped data network gateway on visit ground by the WLAN (wireless local area network) IAD on described visit ground.
Further, if described terminal needs the business network of the long-term evolving network of access belonging area, then described terminal inserts the access controller/BAS Broadband Access Server in the WLAN (wireless local area network) of visiting ground, access controller/the BAS Broadband Access Server on described visit ground inserts described aaa server, and receives the insertion authority information (comprising visit ground insertion authority information and ownership place insertion authority information) that described aaa server issues from described aaa server; Access controller/the BAS Broadband Access Server on described visit ground is according to described visit ground insertion authority information and ownership place insertion authority information, domain name system server by inquiry visit ground obtains the address of the grouped data network gateway of the address of WLAN (wireless local area network) IAD on visit ground and ownership place, the access of the grouped data network gateway of described ownership place is carried out in address according to the grouped data network gateway of the address of the WLAN (wireless local area network) IAD on described visit ground and ownership place, and is established to the proxy-mobile IP passage of the grouped data network gateway of ownership place by the WLAN (wireless local area network) IAD on described visit ground.
For achieving the above object, the invention provides a kind of WLAN (wireless local area network) IAD, comprising:
The unit is set up in the SIP session connection, is used for setting up the SIP session connection via access controller/BAS Broadband Access Server and terminal;
The ppp negotiation unit is used for carrying out ppp negotiation with the core network side apparatus of long-term evolving network;
The AAA authenticating unit is used in the aaa server request authentication of ppp negotiation process to core network side;
The PMIP passage is set up the unit, is used for sending the proxy-mobile IP request to grouped data network gateway when the authentication success, and receives the proxy-mobile IP access success message that described grouped data network gateway is replied;
Distribute the address transmitting element, being used for inserting success message according to described proxy-mobile IP is that the IP address of described terminal distribution sends to described terminal with described grouped data network gateway, finishes ppp negotiation;
User conversation is set up the unit, be used for to set up from described terminal via described WLAN (wireless local area network) IAD, the described grouped data network gateway user conversation to the business network of described long-term evolving network.
Further, also comprise:
Session change unit, be used for after described terminal is moved out to the coverage of long-term evolving network from the coverage of WLAN (wireless local area network), the passage of the data flow of described user conversation is changed to from described terminal via described gateway, the described grouped data network gateway business network to described long-term evolving network;
The session information delete cells is used for after receiving the Notification of Changes of described user conversation, deletes the relevant data session information of described user conversation.
Further, described PMIP passage is set up the unit and is specifically comprised:
Visit ground PMIP passage is set up the unit, is used for that the grouped data network gateway to visit ground sends the proxy-mobile IP request when the authentication success, and receives the proxy-mobile IP that the grouped data network gateway on described visit ground replys and insert success message; And/or
Ownership place PMIP passage is set up the unit, is used for that the grouped data network gateway to ownership place sends the proxy-mobile IP request when the authentication success, and receives the proxy-mobile IP that the grouped data network gateway of described ownership place replys and insert success message.
For achieving the above object, the invention provides a kind of network integration system that comprises arbitrary aforementioned WLAN (wireless local area network) IAD, also comprise:
Be positioned at the access controller/BAS Broadband Access Server of wireless local network edge;
Be arranged in the grouped data network gateway of the core net of long-term evolving network;
When terminal inserts described access controller/BAS Broadband Access Server, set up from described terminal via described WLAN (wireless local area network) IAD, the described grouped data network gateway user conversation to the business network of described long-term evolving network.
Further, also comprise: be arranged in the aaa server of the core net of long-term evolving network, be used for carrying out the authentication between described terminal and the described WLAN (wireless local area network) IAD, and the authentication between described WLAN (wireless local area network) IAD and the described aaa server.
Based on technique scheme, the present invention need not the AC/BAS equipment in the WLAN (wireless local area network) huge in the existing network is transformed, and support the PMIP mode to insert the WAG of PDN GW by LTE server net side, just can be in the effective fusion that realizes the business function of wlan network and LTE network in conjunction with the basis of the characteristics of existing network, and less to the transformation of existing network, be conducive to reduce the influence to the user.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not constitute improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the network topology schematic diagram of I-WLAN scheme in the existing 3GPP standard.
Fig. 2 is LTE network and the S2a of the non-3GPP network integration and the network topology schematic diagram of S2b architectural schemes in the existing 3GPP standard.
Fig. 3 is the network topology schematic diagram of the S2c architectural schemes of LTE network and the non-3GPP network integration in the existing 3GPP standard.
Fig. 4 be the embodiment of the invention based on wlan network and the network topology schematic diagram of LTE network integration architectural schemes.
Fig. 5 is the schematic flow sheet of an embodiment of wireless local area network access method of the present invention.
Fig. 6 for another embodiment of wireless local area network access method of the present invention based on wlan network and the network topology schematic diagram of LTE network integration architectural schemes.
Fig. 7 is the structural representation of an embodiment of WLAN (wireless local area network) IAD of the present invention.
Fig. 8 is the structural representation of another embodiment of WLAN (wireless local area network) IAD of the present invention.
Fig. 9 is the structural representation of an embodiment of the network integration of the present invention system.
Figure 10 is the structural representation of another embodiment of the network integration of the present invention system.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
As shown in Figure 4, for the embodiment of the invention based on wlan network and the network topology schematic diagram of LTE network integration architectural schemes.Network integration architectural schemes in Fig. 4 increases WAG as convergence device between the PDN GW of the edge device AC/BAS of WLAN (wireless local area network) and LTE server net side.Terminal can be linked into WAG by the SIP mode, and carries out the eHRPD ppp negotiation with WAG.WAG can adopt the PMIP mode to be linked into the PDN GW of core-network side.
Under this framework, need not the edge device AC/BAS in the existing network is transformed, this with the 3GPP standard in LTE network and the S2a architectural schemes of the non-3GPP network integration workload of comparing transformation much smaller.Aspect user's influence, than the S2a architectural schemes, then more be conducive to existing network user's compatibility.
Under network integration framework shown in Figure 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, the WLAN (wireless local area network) access process comprises:
In the present embodiment, WAG sets up in the terminal access procedure from the terminal to WAG, PDN GW is to the tunnel of the business network of LTE, and before setting up the tunnel, WAG is equivalent to the effect of fire compartment wall, can stop not wish the packet that passes through.In addition, for the packet from unknown IP address, WAG also can abandon, with the fail safe of guaranteeing to connect.After the tunnel was set up, WAG then carried out forwarding and and the predetermined routing policy of execution of packet as routing forwarding equipment.WAG can carry out Packet Filtering effect to receiving according to the non-encrypted information in the packet.By the above-mentioned functions of WAG, before and after can setting up in the tunnel, all plays WAG the effect of protection, and this has proposed solution preferably for the fail safe of network.
After terminal is moved out to the coverage of LTE network from the coverage of wlan network, gateway (Serving GW) inserts the user conversation of having set up, and search corresponding PDN GW according to authorization message, and the passage of the data flow of this user conversation is changed to from terminal via Serving GW, the PDN GW business network to the LTE network.At passage after changing, PDN GW also can notify WAG to delete the relevant data session information of this user conversation.This session of just having finished from wlan network to the LTE network is switched.
Under the situation of considering multi-operator, terminal inserts from the wlan network on visit ground when roaming, as shown in Figure 6, for another embodiment of wireless local area network access method of the present invention based on wlan network and the network topology schematic diagram of LTE network integration architectural schemes.Figure 6 illustrates two kinds of application scenarioss:
If 1 terminal need insert the business network of the LTE network on visit ground, then terminal inserts the AC/BAS among the WLAN on visit ground, and the AC/BAS on visit ground inserts aaa server, and receives the visit ground insertion authority information that aaa server issues from aaa server.
The AC/BAS on visit ground is according to visit ground insertion authority information, obtain the address of the WAG on visit ground by the dns server on inquiry visit ground, visit the access of the WAG on ground according to the address of the WAG that visits ground, and be established to the PMIP passage (referring to solid line shown in the alphabetical A among Fig. 6) of the PDN GW that visits ground by the WAG that visits ground.
After setting up the PMIP passage, visit ground PDN GW inserts for terminal provides data service, and this moment, visit ground WAG can be linked into the PDN GW on visit ground according to authorized user message for the user.Customer traffic can directly be connected to visit ground WAG from visit ground wlan network by ppp link, is forwarded to visit ground PDN GW by visit ground WAG by the PMIP tunnel, by visit ground PDN GW customer traffic is forwarded to visit ground business network again.
If 2 terminals need the business network of the LTE network of access belonging area, then terminal inserts the AC/BAS among the WLAN that visits ground, the AC/BAS on visit ground inserts aaa server, and receiving the insertion authority information that aaa server issues from aaa server, insertion authority information comprises visit ground insertion authority information and ownership place insertion authority information.
The AC/BAS on visit ground is according to visit ground insertion authority information and ownership place insertion authority information, dns server by inquiry visit ground obtains the address of the PDN GW of the address of WAG on visit ground and ownership place, the access of the PDN GW of ownership place is carried out in address according to the PDN GW of the address of the WAG on visit ground and ownership place, and is established to the PMIP passage (referring to solid line shown in the letter b among Fig. 6) of the PDN GW of ownership place by the WAG on visit ground.
After setting up the PMIP passage, customer traffic directly is connected to visit ground WAG from visit ground wlan network by ppp link, and WAG is forwarded to ownership place PDN GW by the PMIP tunnel by visit ground.Be forwarded to the ownership place business network by ownership place PDN GW.
Except above two kinds of scenes, terminal it is also conceivable that from the LTE network on visit ground and inserts.If terminal need insert the business network of the LTE network on visit ground, then terminal inserts the evolved base station (eNode B) in the LTE network of visiting ground, eNode B inserts aaa server (not shown in Fig. 6) by mobile management entity (MME), receive the visit ground insertion authority information that aaa server issues from aaa server, and will visit insertion authority information send to terminal.
Terminal inserts the AC/BAS on visit ground.The AC/BAS on visit ground is according to visit ground insertion authority information, obtain the address of the WAG on visit ground by the dns server on inquiry visit ground, visit the access of the WAG on ground according to the address of the WAG that visits ground, and be established to the PMIP passage of the PDN GW that visits ground by the WAG that visits ground.
In above-mentioned each roaming scence, WAG can set up the tunnel to each and generate corresponding charge information.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
As shown in Figure 7, be the structural representation of an embodiment of WLAN (wireless local area network) IAD of the present invention.In the present embodiment, WLAN (wireless local area network) IAD WAG specifically comprises: the SIP session connection is set up unit 11, ppp negotiation unit 12, AAA authenticating unit 13, PMIP passage and is set up unit 14, distributes address transmitting element 15 and user conversation to set up unit 16.
The SIP session connection is set up unit 11 and is responsible for setting up the SIP session connection via AC/BAS and terminal.Ppp negotiation unit 12 is responsible for carrying out ppp negotiation with LTE server network equipment.AAA authenticating unit 13 is responsible in the ppp negotiation process aaa server request authentication to core network side.
The PMIP passage is set up unit 14 and is responsible for sending the PMIP request to PDN GW when the authentication success, and receives the PMIP access success message that PDN GW replys.Distributing address transmitting element 15 to be responsible for inserting success message according to PMIP is that the IP address of terminal distribution sends to terminal with PDN GW, finishes ppp negotiation.User conversation is set up unit 16 and is responsible for setting up from terminal via WAG, the PDN GW user conversation to the business network of LTE network.
As shown in Figure 8, be the structural representation of another embodiment of WLAN (wireless local area network) IAD of the present invention.Compare with a last embodiment, WAG also comprises in the present embodiment: session change unit 17 and session information delete cells 18.Wherein, session change unit 17 is responsible for after described terminal is moved out to the coverage of LTE network from the coverage of WLAN, and the passage of the data flow of user conversation is changed to from described terminal via Serving GW, the PDN GW business network to the LTE network.Session information delete cells 18 is responsible for after receiving the Notification of Changes of described user conversation, deletes the relevant data session information of described user conversation.
In another embodiment, the PMIP passage among the WAG is set up the unit and can specifically be comprised:
Visit ground PMIP passage is set up the unit, is used for that the PDN GW to visit ground sends the PMIP request when the authentication success, and receives the PMIP that the PDN GW on visit ground replys and insert success message; And/or ownership place PMIP passage sets up the unit, is used for that the PDN GW to ownership place sends the PMIP request when the authentication success, and receives the PMIP that the PDN GW of ownership place replys and insert success message.
In another embodiment, WAG sets up in the terminal access procedure from the terminal to WAG, PDN GW is to the tunnel of the business network of LTE, and before setting up the tunnel, WAG can realize being similar to the effect of fire compartment wall, stops not wish the packet that passes through.In addition, for the packet from unknown IP address, WAG also can abandon, with the fail safe of guaranteeing to connect.After the tunnel was set up, WAG then can be used as forwarding and and the predetermined routing policy of execution that routing forwarding equipment carries out packet.WAG can carry out Packet Filtering effect to receiving according to the non-encrypted information in the packet.By the above-mentioned functions of WAG, before and after can setting up in the tunnel, all plays WAG the effect of protection, and this has proposed solution preferably for the fail safe of network.
Under network integration framework shown in Figure 4, Fig. 9 shows the structural representation of an embodiment of the network integration of the present invention system.In the present embodiment, network integration system comprises aforesaid WAG 1, and the AC/BAS 2 and the PDN GW 3 that is positioned at LTE server net that are arranged in the WLAN edge.When terminal inserts AC/BAS 2, set up from the user conversation of terminal via the business network of WAG1, PDN GW 3 to LTE networks.
As shown in figure 10, be the structural representation of another embodiment of the network integration of the present invention system.Compare with a last embodiment, the network integration system of present embodiment also comprises the aaa server 4 that is arranged in LTE server net.Aaa server 4 is responsible for carrying out the authentication between terminal and the WAG, and the authentication between WAG and the described aaa server.
Explanation by above several embodiment to WLAN cut-in method, WAG and network integration system, it is little to the transformation of existing network to understand the present invention's given several network integration schemes in the 3GPP standard, be convenient to seamlessly transitting of existing network customer service, less to user's influence.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (10)
1. wireless local area network access method comprises:
The WLAN (wireless local area network) IAD is set up the 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;
In the ppp negotiation process, described WLAN (wireless local area network) IAD is to the aaa server request authentication of core network side;
When the authentication success, described WLAN (wireless local area network) IAD sends the proxy-mobile IP request to grouped data network gateway;
Described WLAN (wireless local area network) IAD receives the proxy-mobile IP access success message that described grouped data network gateway is replied, and insert success message according to described proxy-mobile IP described grouped data network gateway IP address allocated is sent to described terminal, finish ppp negotiation, and set up from described terminal via described WLAN (wireless local area network) IAD, the described grouped data network gateway user conversation to the business network of described long-term evolving network.
2. wireless local area network access method according to claim 1, wherein, after described terminal is moved out to the coverage of long-term evolving network from the coverage of WLAN (wireless local area network), gateway inserts described user conversation, and search described grouped data network gateway according to authorization message, and the passage of the data flow of described user conversation changed to from described terminal via described gateway, described grouped data network gateway arrives the business network of described long-term evolving network, and notifies described WLAN (wireless local area network) IAD to delete the relevant data session information of described user conversation.
3. wireless local area network access method according to claim 1, wherein, if described terminal need insert the business network of the long-term evolving network on visit ground, then described terminal inserts the access controller/BAS Broadband Access Server in the WLAN (wireless local area network) of visiting ground, access controller/the BAS Broadband Access Server on described visit ground inserts described aaa server, and receives the visit ground insertion authority information that described aaa server issues from described aaa server; Access controller/the BAS Broadband Access Server on described visit ground is according to described visit ground insertion authority information, obtain the address of the WLAN (wireless local area network) IAD on visit ground by the domain name system server on inquiry visit ground, carry out the access of the WLAN (wireless local area network) IAD on described visit ground according to the described address of visiting the WLAN (wireless local area network) IAD on ground, and be established to the proxy-mobile IP passage of the grouped data network gateway on visit ground by the WLAN (wireless local area network) IAD on described visit ground.
4. wireless local area network access method according to claim 1, wherein, if described terminal need insert the business network of the long-term evolving network on visit ground, then described terminal inserts the evolved base station in the long-term evolving network of visiting ground, described evolved base station inserts described aaa server by mobile management entity, receive the visit ground insertion authority information that described aaa server issues from described aaa server, and described visit ground insertion authority information is sent to described terminal; Described terminal inserts the access controller/BAS Broadband Access Server on described visit ground; Access controller/the BAS Broadband Access Server on described visit ground is according to described visit ground insertion authority information, obtain the address of the WLAN (wireless local area network) IAD on visit ground by the domain name system server on inquiry visit ground, carry out the access of the WLAN (wireless local area network) IAD on described visit ground according to the described address of visiting the WLAN (wireless local area network) IAD on ground, and be established to the proxy-mobile IP passage of the grouped data network gateway on visit ground by the WLAN (wireless local area network) IAD on described visit ground.
5. wireless local area network access method according to claim 1, wherein, if described terminal needs the business network of the long-term evolving network of access belonging area, then described terminal inserts the access controller/BAS Broadband Access Server in the WLAN (wireless local area network) of visiting ground, access controller/the BAS Broadband Access Server on described visit ground inserts described aaa server, and receives visit ground insertion authority information and the ownership place insertion authority information that described aaa server issues from described aaa server; Access controller/the BAS Broadband Access Server on described visit ground is according to described visit ground insertion authority information and ownership place insertion authority information, domain name system server by inquiry visit ground obtains the address of the grouped data network gateway of the address of WLAN (wireless local area network) IAD on visit ground and ownership place, the access of the grouped data network gateway of described ownership place is carried out in address according to the grouped data network gateway of the address of the WLAN (wireless local area network) IAD on described visit ground and ownership place, and is established to the proxy-mobile IP passage of the grouped data network gateway of ownership place by the WLAN (wireless local area network) IAD on described visit ground.
6. WLAN (wireless local area network) IAD comprises:
The unit is set up in the SIP session connection, is used for setting up the SIP session connection via access controller/BAS Broadband Access Server and terminal;
The ppp negotiation unit is used for carrying out ppp negotiation with the core network side apparatus of long-term evolving network;
The AAA authenticating unit is used in the aaa server request authentication of ppp negotiation process to core network side;
The PMIP passage is set up the unit, is used for sending the proxy-mobile IP request to grouped data network gateway when the authentication success, and receives the proxy-mobile IP access success message that described grouped data network gateway is replied;
Distribute the address transmitting element, being used for inserting success message according to described proxy-mobile IP is that the IP address of described terminal distribution sends to described terminal with described grouped data network gateway, finishes ppp negotiation;
User conversation is set up the unit, be used for to set up from described terminal via described WLAN (wireless local area network) IAD, the described grouped data network gateway user conversation to the business network of described long-term evolving network.
7. WLAN (wireless local area network) IAD according to claim 6 wherein, also comprises:
Session change unit, be used for after described terminal is moved out to the coverage of long-term evolving network from the coverage of WLAN (wireless local area network), the passage of the data flow of described user conversation is changed to from described terminal via described gateway, the described grouped data network gateway business network to described long-term evolving network;
The session information delete cells is used for after receiving the Notification of Changes of described user conversation, deletes the relevant data session information of described user conversation.
8. WLAN (wireless local area network) IAD according to claim 6, wherein, described PMIP passage is set up the unit and is specifically comprised:
Visit ground PMIP passage is set up the unit, is used for that the grouped data network gateway to visit ground sends the proxy-mobile IP request when the authentication success, and receives the proxy-mobile IP that the grouped data network gateway on described visit ground replys and insert success message; And/or
Ownership place PMIP passage is set up the unit, is used for that the grouped data network gateway to ownership place sends the proxy-mobile IP request when the authentication success, and receives the proxy-mobile IP that the grouped data network gateway of described ownership place replys and insert success message.
9. network integration system that comprises the arbitrary described WLAN (wireless local area network) IAD of claim 6～8 also comprises:
Be positioned at the access controller/BAS Broadband Access Server of wireless local network edge;
Be arranged in the grouped data network gateway of the core net of long-term evolving network;
When terminal inserts described access controller/BAS Broadband Access Server, set up from described terminal via described WLAN (wireless local area network) IAD, the described grouped data network gateway user conversation to the business network of described long-term evolving network.
10. the network integration according to claim 9 system also comprises:
Be arranged in the aaa server of the core net of long-term evolving network, be used for carrying out the authentication between described terminal and the described WLAN (wireless local area network) IAD, and the authentication between described WLAN (wireless local area network) IAD and the described aaa server.
Priority Applications (1)
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| CN109479051A (en) * | 2016-05-10 | 2019-03-15 | 诺基亚通信公司 | Support the dedicated core network for WLAN access |
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| CN106412949A (en) * | 2015-07-31 | 2017-02-15 | 中兴通讯股份有限公司 | Method and apparatus for aggregating 3GPP-WLAN fusion networking |
| CN106412949B (en) * | 2015-07-31 | 2020-09-11 | 中兴通讯股份有限公司 | Method and device for aggregating 3GPP-WLAN converged networking |
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| 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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