CN102026163B - Method and device for selecting access to Internet through wireless fidelity access network - Google Patents
Method and device for selecting access to Internet through wireless fidelity access network Download PDFInfo
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- CN102026163B CN102026163B CN 200910173724 CN200910173724A CN102026163B CN 102026163 B CN102026163 B CN 102026163B CN 200910173724 CN200910173724 CN 200910173724 CN 200910173724 A CN200910173724 A CN 200910173724A CN 102026163 B CN102026163 B CN 102026163B
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Abstract
The invention provides a method and a device for selecting an access to the Internet through a wireless fidelity (WiFi) access network. In the method, a dual-mode terminal carries out initial access authentication in the WiFi access network and acquires an IWK (Interworking function) address; the terminal acquires a local IP address allocated by a WiFi access network DHCP (Dynamic Host Configuration Protocol) server and used for a direct IP connection mode; the terminal acquires a remote IP address allocated by a WiMAX (World Interoperability for Microwave Access) network DHCP server and used for a WiMAX IP connection mode according to the IWK address and the local IP address; and the terminal receives the selection of a user to the direct IP connection mode or the WiMAX IP connection mode and completes different types of Internet access according to the selected IP connection mode. The invention provides flexible Internet access, improves user experience and solves the problem that the user experience is influenced due to great influence because the upgrading of the entire traditional WiFi network is required in related technologies.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of method and device by adopting wireless fidelity technology WiFi access network selection access Internet.
Background technology
WiMAX (World Interoperability for Microwave Access, whole world inserting of microwave interoperability) be based on the wireless access wide band technology of IEEE 802.16 standards, can effectively utilize limited radio spectrum resources and obtain larger bandwidth of air-interface (the highest 70Mbps data transmission capabilities) and wider transmission coverage (transmission of wireless signals is apart from reaching 60 kilometers farthest).WiFi (Wireless Fidelity, adopting wireless fidelity technology) network is also the wireless network that higher bandwidth can be provided, and disposes in a large number in office, family and hotels and other places at present.But WiFi is as a kind of short distance wireless technical, and its network coverage less (approximately 100 meters left and right) generally can only replenishing as other wireless technology networking.But the WiFi network has the advantages such as the networking expense is low, easy deployment, and if WiMAX builds up the network that covers the whole nation, its cost of investment will be very high, so WiFi and WiMAX network will coexist in quite over a long time.Consider WiMAX as a kind of Overview of wireless MAN technologies, it can be connected to the Internet with Wi-Fi Hotspot.The intercommunication of WiMAX and two kinds of networks of WiFi will help the mutual supplement with each other's advantages of two networks, and expand the coverage area, allow the mobile subscriber in different Radio Access Network environment, can utilize widely two networks different characteristic separately in geographic range, can obtain consistent Operational Visit again.
Network interworking between WiMAX system and WiFi system helps the mutual supplement with each other's advantages of two networks, enlarge the coverage of network, allow mobile subscriber equipment in different Radio Access Network environment, utilize two networks different characteristic separately, obtain consistent Operational Visit.Fig. 1 shows MS/STA (Mobile Station/STAtion, terminal equipment) and is in the structured flowchart that passes through the WiMAX wireless access network and access the WiMAX core net by the WiFi Access Network in non-roaming situation, comprises following network element:
IWK (Interworking Function, IWF node): be responsible for terminal and initially access the WiMAX network and coordinate terminal from the WiMAX Access Network to the switching the WiFi Access Network by the WiFi network;
WiFi SFF (WiFi Signal Forward Function, the WiFi signaling forwarding function): be responsible for terminal when the WiMAX Access Network switches to the WiFi Access Network, be established to its IP tunnel by the WiMAX network, and forward the pre-registration signaling that WiFi that terminal sends by IP tunnel accesses;
WiMAX SFF (WiMAX Signal Forward Function, WiMAX signaling forwarding function): be responsible for terminal and carry out the pre-registration process of WiMAX access by the WiFi network, and terminal is carried out the dummy source BS function that switches to the WiMAX network;
AP (Access Point, wireless access node): being positioned at the WiFi Access Network, is a hub that possesses the wireless signal transmission function, and it can be many radio networking devices the dialogue tandem is provided.Be equivalent to the hub or switch in cable network;
Local AAA (Authentication, Authorisation and Accounting, authentication and authorization charging) agency: be positioned at the WiFi Access Network, be responsible for forwarding RADIUS (RemoteAuthentication Dial In User Service, remote customer dialing authentication service) authentication and metering data bag;
AC (Access Controller, access controller): be positioned at the WiFi Access Network, play gateway function between WiFi and Internet, will converge, access Internet from the data of different AP.AC can complete by operator logo the functions such as access authentication and authentication as client for the user;
System also comprises aaa server, Dynamic Host Configuration Protocol server (Dynamic HostConfiguration Protocol Server, Dynamic Host Configuration Protocol server) and HA/LMA (Home Agent/Local Mobility Anchor, home agent/regional mobile anchor point) etc.
In the intercommunication network framework of Fig. 1, the WiFi Access Network provides the ownership routing mode that arrives the WiMAX home network by IWK, also provides the WiFi Access Network directly to arrive the local IP access mode of Internet access.For the local IP access mode, data flow does not need the user's face passage through the WiMAX network, can reduce the load of the data flow of WiMAX network.Operator can provide service for the user by more flexible, effective mode, thereby improves user's experience.
A kind of method by WiFi access network selection access Internet is provided in correlation technique, referring to Fig. 2, the method provides two kinds of Internet cut-in methods for the user: direct IP connected mode and WiMAX IP connected mode, be that the WiFi Access Network can provide multiple connection to select, as be connected to the WiMAX service network or be directly connected to the Internet network by the WiFi Access Network in a traditional way.The configuration of WiFi Access Network has the empty AP mode of a plurality of SSID (Service SetIdentity), if WiFi operator supports the intercommunication with WiMAX, what one of them SSID is configured to that the user can identify is SSID sign with the WiMAX intercommunication, as " WiMAX IWK ".If the user selects the SSID with the WiMAX intercommunication, the WiFi Access Network arrives WiMAX CSN (Common ServicesNetwork, queueing network) network with user traffic access; If the user selects common SSID, the WiFi Access Network directly arrives the Internet network with user traffic access.The method.
the inventor finds to access the method for Internet because its WiFi Access Network need to be supported a plurality of empty AP by the WiFi access network selection in correlation technique, each empty AP all configures different SSID, and the local area network (LAN)s different according to different SSID configurations connect, therefore need to carry out the whole network upgrading to traditional WiFi network, affect huge, and after the SSID of user's selection and WiMAX intercommunication passes through WiMAX network route, if the user wishes to switch to local access, also need to rescan the WiFi Access Network, select the SSID of non-intercommunication, cause the efficient of network insertion lower, the real-time of transfer of data is relatively poor, thereby affecting the user experiences.
Summary of the invention
The present invention aims to provide a kind of method and device by WiFi access network selection access Internet, the method that can solve in correlation technique need to be carried out the whole network upgrading to traditional WiFi network, affect huge, and the efficient of network insertion is lower, the real-time of transfer of data is relatively poor, thereby affects the problem that the user experiences.
To achieve these goals, according to an aspect of the present invention, a kind of method by WiFi access network selection access Internet is provided, comprise the following steps: support the dual-mode terminal of WiFi access and WiMAX access to carry out initial access authentication under the WiFi Access Network, and obtain the IWK address of IWK; Terminal is obtained the local ip address of the first Dynamic Host Configuration Protocol server distribution of WiFi Access Network, and local ip address is used for the Internet access of direct IP connection mode; Terminal is obtained the far-end IP address of the second Dynamic Host Configuration Protocol server distribution of WiMAX network according to IWK address and local ip address, far-end IP address is used for the Internet access of WiMAXIP connection mode; Terminal receives the selection of the direct IP connection mode of user or WiMAX IP connection mode, and according to corresponding with selected IP connection mode IP address completing the Internet access.
Preferably, in said method, obtain the IWK address and specifically comprise: terminal is obtained the IWK address by Extensible Authentication Protocol EAP (Extensible Authentication Protocol) authentication.
Preferably, in said method, obtain the IWK address and specifically comprise: terminal is by DHCP acquisition request IWK address.
Preferably, in said method, obtain the IWK address and specifically comprise: terminal is obtained the IWK address by domain name system DNS (Domain Name System) inquiry.
Preferably, in said method, the local ip address that terminal is obtained the first Dynamic Host Configuration Protocol server distribution of WiFi Access Network specifically comprises: terminal sends the first dhcp discover message to the WiFi Access Network; The WiFi Access Network sends a DHCP by the first Dynamic Host Configuration Protocol server to terminal and gives information, and a DHCP gives information and comprises local ip address; Terminal sends a DHCP request message to the WiFi Access Network, and a DHCP request message comprises local ip address; The WiFi Access Network sends a DHCP acknowledge message to terminal, and a DHCP acknowledge message comprises local ip address and the first configuration parameter.
Preferably, in said method, terminal is obtained according to IWK address and local ip address the far-end IP address that the second Dynamic Host Configuration Protocol server of WiMAX network distributes and specifically comprised: terminal is established to the IP tunnel of IWK according to IWK address and local ip address; Terminal is obtained the far-end IP address of the second Dynamic Host Configuration Protocol server distribution of WiMAX network by IP tunnel.
Preferably, in said method, terminal specifically comprises by the far-end IP address that IP tunnel obtains the second Dynamic Host Configuration Protocol server distribution of WiMAX network: terminal sends the second dhcp discover message by IP tunnel to IWK; IWK sends mobile IP MIP (Mobile Internet Protocol) login request message/agent binding update messages to the HA/LMA of WiMAX network; HA/LMA returns to MIP registration reply message/proxy binding acknowledgment messages to IWK, and MIP registration reply message/proxy binding acknowledgment messages comprises far-end IP address; IWK returns to the 2nd DHCP by IP tunnel to terminal and gives information, and the 2nd DHCP gives information and comprises far-end IP address; Terminal sends the 2nd DHCP request message to IWK, and the 2nd DHCP request message comprises far-end IP address; IWK sends the 2nd DHCP acknowledge message to terminal, and the 2nd DHCP acknowledge message comprises far-end IP address and the second configuration parameter.
Preferably, in said method, terminal receives the user to the selection of direct IP connection mode or WiMAX IP connection mode, and complete the Internet access according to corresponding with selected IP connection mode IP address and specifically comprise: terminal is when initiating service application, the prompting user selects the IP connection mode, and the IP connection mode comprises direct IP connection mode and WiMAX IP connection mode; If the user selects direct IP connection mode, the terminal local ip address is set to the source address of business datum, and realizes directly accessing by the Internet of WiFi Access Network.
Preferably, in said method, terminal receives the user to the selection of direct IP connection mode or WiMAX IP connection mode, and complete the Internet access according to corresponding with selected IP connection mode IP address and specifically comprise: terminal is when initiating service application, the prompting user selects the IP connection mode, and the IP connection mode comprises direct IP connection mode and WiMAX IP connection mode; If the user selects WiMAX IP connection mode, the terminal far-end IP address is set to the source address of business datum, and is implemented to the Internet access of WiMAX network by the tunnel between terminal and IWK.
To achieve these goals, according to a further aspect in the invention, a kind of device by WiFi access network selection access Internet also is provided, comprise: the IWK address acquisition module, be used for supporting that the dual-mode terminal of WiFi access and global inserting of microwave interoperability WiMAX access carries out initial access authentication under the WiFi Access Network, and obtain the IWK address of IWK; The local ip address acquisition module is used for terminal and obtains the local ip address that the first Dynamic Host Configuration Protocol server of WiFi Access Network distributes, and local ip address is used for the Internet access of direct IP connection mode; The far-end IP address acquisition module is used for terminal and obtains the far-end IP address of the second Dynamic Host Configuration Protocol server distribution of WiMAX network according to IWK address and local ip address, and far-end IP address is used for the Internet access of WiMAX IP connection mode; Access module is used for terminal and receives the user to the selection of direct IP connection mode or WiMAX IP connection mode, and according to corresponding with selected IP connection mode IP address completing the Internet access.
Preferably, in said apparatus, the IWK address acquisition module specifically comprises: Extensible Authentication Protocol EAP authenticating unit is used for terminal and obtains the IWK address by the EAP authentication.
Preferably, in said apparatus, the IWK address acquisition module specifically comprises: the DHCP request unit is used for terminal by DHCP acquisition request IWK address.
Preferably, in said apparatus, the IWK address acquisition module specifically comprises: the domain name system DNS query unit, and inquire about by DNS for terminal and obtain the IWK address.
At first WiFi Access Network terminal in above-described embodiment obtains the IWK address in initial access authentication process, then obtain the local ip address of the first Dynamic Host Configuration Protocol server distribution of WiFi Access Network, obtain the far-end IP address of the second Dynamic Host Configuration Protocol server distribution of WiMAX network according to IWK address and local ip address again, receive at last the user to the selection of local ip address or far-end IP address, and complete the Internet access according to selected IP address.Because terminal has successively been obtained local ip address and far-end IP address, the user is directly selecting in IP connected mode and WiMAX IP connected mode, can complete the selection to above two kinds of IP addresses, terminal can be completed the Internet access easily according to the IP address of correspondence, improve the efficient of network insertion and the real-time of transfer of data, improved user's experience.Because need not by means of the empty AP with SSID to realize the Internet access, need to carry out the whole network upgrading to traditional WiFi network so overcome the Internet cut-in method that is used for the WiFi Access Network in the correlation technique, affect huge, and the efficient of network insertion is lower, the real-time of transfer of data is relatively poor, thereby affects the problem that the user experiences.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 shows MS/STA and is in the structured flowchart that passes through the WiMAX Access Network and access the WiMAX core net by the WiFi Access Network in non-roaming situation;
Fig. 2 shows the schematic diagram of selecting access Internet method in correlation technique;
Fig. 3 shows the flow chart according to the selection access Internet method of first embodiment of the invention;
Fig. 4 shows the flow chart according to the selection access Internet method of second embodiment of the invention;
Fig. 5 shows the flow chart according to the selection access Internet method of third embodiment of the invention;
Fig. 6 shows the structure chart according to the selection access Internet device of fourth embodiment of the invention.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Fig. 3 shows the flow chart according to the selection access Internet method of first embodiment of the invention, and the method comprises the following steps:
at first support WiFi access in the present embodiment and the dual-mode terminal of WiMAX access obtain the IWK address in the initial access authentication process under the WiFi Access Network, then obtain that the first Dynamic Host Configuration Protocol server of WiFi Access Network distributes, the local ip address that is used for direct IP connection mode, obtain according to IWK address and local ip address again that the second Dynamic Host Configuration Protocol server of WiMAX network distributes, the far-end IP address that is used for WiMAX IP connection mode, receive at last the user to the selection of direct IP connection mode or WiMAX IP connection mode, and according to corresponding with selected IP connection mode IP address completing the Internet access.The present embodiment is applied in WiMAX network and WiFi network interworking framework, and terminal wherein is for supporting the dual-mode terminal of WiFi access and WiMAX access.Because terminal has successively been obtained local ip address and far-end IP address, the user is directly selecting in IP connected mode and WiMAX IP connected mode, can complete the selection to above two kinds of IP addresses, terminal can be completed the Internet access easily according to the IP address of correspondence, improve the efficient of network insertion and the real-time of transfer of data, improved user's experience.Because need not by means of the empty AP with SSID to realize the Internet access, need to carry out the whole network upgrading to traditional WiFi network so overcome the Internet cut-in method that is used for the WiFi Access Network in the correlation technique, affect huge, and the efficient of network insertion is lower, the real-time of transfer of data is relatively poor, thereby affects the problem that the user experiences.
Preferably, in said method, obtain the IWK address and specifically comprise: terminal is obtained the IWK address by the EAP authentication.In the present embodiment, terminal is obtained the IWK address by the EAP authentication, specifically be included in the EAP authentication process, produce master session key MSK (Master Session Key) in terminal and aaa server, aaa server passes to the WiFi Access Network with MSK, and IWK carries its address (being IWK) to terminal by EAP message in the EAP authentication process.The present embodiment takes full advantage of the EAP authentication process of terminal, has improved the efficient of obtaining of IWK address, has saved Internet resources.
Preferably, in said method, obtain the IWK address and specifically comprise: terminal is by DHCP acquisition request IWK address.In the present embodiment, terminal asks to obtain the IWK address by DHCP, and namely terminal is obtained the IWK address alternately by carrying out dhcp message with IWK.Do like this, make obtaining of IWK address simple.
Preferably, in said method, obtain the IWK address and specifically comprise: terminal is inquired about by DNS and is obtained the IWK address.Do like this, make obtaining of IWK address simple.
Preferably, in said method, step 302 specifically comprises: terminal sends the first dhcp discover message to the WiFi Access Network; The WiFi Access Network sends a DHCP by the first Dynamic Host Configuration Protocol server to terminal and gives information, and a DHCP gives information and comprises local ip address; Terminal sends a DHCP request message to the WiFi Access Network, and a DHCP request message comprises local ip address; The WiFi Access Network sends a DHCP acknowledge message to terminal, and a DHCP acknowledge message comprises local ip address and the first configuration parameter.
In the present embodiment, at first terminal sends the first dhcp discover message to the WiFi Access Network, be used for finding that Dynamic Host Configuration Protocol server is to carry out the host ip configuration, the WiFi Access Network includes local ip address the one DHCP by the first Dynamic Host Configuration Protocol server to the terminal transmission and gives information, terminal sends a DHCP request message to the WiFi Access Network again, last WiFi Access Network sends a DHCP acknowledge message to confirm the use of local ip address to terminal, and in the time of will adopting direct access way simultaneously, other relevant configuration parameters also are carried on and wherein pass to terminal.The present embodiment has realized that terminal is to the obtaining of local ip address and relevant configured parameter, for carrying out providing precondition by the direct access way of WiFi Access Network.
Preferably, in said method, step 303 specifically comprises: terminal is established to the IP tunnel of IWK according to IWK address and local ip address; Terminal is obtained the far-end IP address of the second Dynamic Host Configuration Protocol server distribution of WiMAX network by IP tunnel.
In the present embodiment, at first terminal is established to the IP tunnel of IWK according to the local ip address that obtains in the IWK address that obtains in step 301 and step 302, then obtains far-end IP address by this IP tunnel.Just because of the function of IWK intercommunication between WiFi Access Network and WiMAX network, the present embodiment is just built passage with the WiMAX network to obtain far-end IP address by setting up IP tunnel with IWK.
Preferably, in said method, terminal specifically comprises by the far-end IP address that IP tunnel obtains the second Dynamic Host Configuration Protocol server distribution of WiMAX network: terminal sends the second dhcp discover message by IP tunnel to IWK; IWK sends MIP login request message/agent binding update messages to the HA/LMA of WiMAX network; HA/LMA returns to MIP registration reply message/proxy binding acknowledgment messages to IWK, and MIP registration reply message/proxy binding acknowledgment messages comprises far-end IP address; IWK returns to the 2nd DHCP by IP tunnel to terminal and gives information, and the 2nd DHCP gives information and comprises far-end IP address; Terminal sends the 2nd DHCP request message to IWK, and the 2nd DHCP request message comprises far-end IP address; IWK sends the 2nd DHCP acknowledge message to terminal, and the 2nd DHCP acknowledge message comprises far-end IP address and the second configuration parameter.
In the present embodiment, terminal has realized obtaining far-end IP address by above-mentioned interacting message, wherein after IWK and HA/LMA carry out MIP registration/agent binding interacting message, IWK and HA/LMA have set up MIP/PMIP (Proxy Mobile IP, act on behalf of mobile IP) tunnel, this MIP/PMIP tunnel and IP tunnel are the transmission path of business data packet when adopting WiMAX IP access way, therefore the present embodiment has guaranteed have when reaching to user's business when the WiMAX network, can normally offer the user.The present embodiment has realized that terminal is to the obtaining of far-end IP address and relevant configured parameter, for carrying out providing precondition by the WiMAX IP access way of WiFi Access Network.
Preferably, in said method, step 304 specifically comprises: terminal is when initiating service application, and the prompting user selects the IP connection mode, and the IP connection mode comprises direct IP connection mode and WiMAX IP connection mode; If the user selects direct IP connection mode, the terminal local ip address is set to the source address of business datum, and realizes directly accessing by the Internet of WiFi Access Network.
The present embodiment is selected the situation of direct IP connection mode for the user, terminal use local terminal IP this moment address is as the source address of business datum, the WiFi Access Network directly is routed to business data packet its direct-connected Internet, and the WiFi Access Network may use network address translation NAT (Network Address Translation) technology that local ip address is converted to legal IP address in the external IP network.The present embodiment has been realized the Internet access by the direct IP connection mode of WiFi Access Network simply and easily.
Fig. 4 shows the flow chart according to the Internet cut-in method of second embodiment of the invention, and the method comprises the following steps:
Step 401, starting up of terminal also carries out discovery and the selection of WiFi Access Network;
Step 402, terminal are carried out the association process of the WiFi Access Network of selecting;
Step 403, terminal is used the EAP method of 802.1X/EAPOL and selection, carry out the EAP authentication process of aaa server by the WiFi Access Network, in the EAP authentication process, the MSK that produces in terminal and aaa server, aaa server passes to the WiFi Access Network with MSK, and intercommunication IWK carries its address to terminal by EAP message in the EAP authentication process, IWK also can pass to terminal by mechanism such as DHCP information request or DNS inquiries except in the EAP authentication process, the IWK address being passed to terminal;
Step 404, after the EAP authentication process was completed, the WiFi Access Network was derived pairwise master key PMK (Pairwise Master Key) according to MSK;
Step 405, the authentication device in terminal and WiFi Access Network is carried out 4 handshake procedures; In 4 handshake procedures, the authentication device of terminal and WiFi Access Network is derived pair temporal key PTK (Pairwise Transient Key) according to PMK;
Step 406, shake hands for 4 times complete after, the open 802.1x port of WiFi Access Network;
Step 407, terminal send dhcp discover message and are used for finding that to the WiFi Access Network Dynamic Host Configuration Protocol server is to carry out the host ip configuration;
Step 408, the WiFi Access Network Dynamic Host Configuration Protocol server by this locality is local ip address of terminal distribution and gives information by DHCP and return to terminal;
Step 409, terminal sends the DHCP request message to the WiFi Access Network, carries the IP address that obtains from DHCP gives information;
Step 410, the WiFi Access Network returns to the DHCP acknowledge message to terminal, confirms the use of this IP address and carries other configuration parameters to terminal;
Step 411, terminal be according to the IWK address of returning in step 403EAP authentication process, uses local terminal IP address to be established to the IP tunnel of IWK;
Step 412, terminal sends dhcp discover message by this IP tunnel, is used for the Dynamic Host Configuration Protocol server request far-end IP address to the WiMAX network;
Step 413 is after IWK receives dhcp discover message by IP tunnel, to the HA/LMA transmission MIP login request message/agent binding update messages of WiMAX CSN network;
Step 414, the HA/LMA of WiMAX CSN network returns to MIP registration reply message/agent binding update acknowledge message, wherein is included as the far-end IP address of terminal to apply; Like this, set up the MIP/PMIP tunnel between HA/LMA and IWK;
Step 415, IWK returns to DHCP by IP tunnel to terminal and gives information, and wherein comprises the far-end IP address that the WiMAX network is terminal to apply;
Step 416, terminal sends the DHCP request message by IP tunnel to IWK, carries the far-end IP address of obtaining from DHCP gives information;
Step 417, IWK returns to the DHCP acknowledge message by IP tunnel to terminal, confirm the use of this IP address and carry other configuration parameters to terminal, in step 411～417, to be established to the purpose that WiMAX network HA/LMA connects be to have when reaching to user's business when the WiMAX network in order to guarantee to terminal, can normally offer the user;
Step 418, when the user used by terminal originating service, terminal was to user's prompt service selection mode: directly IP mode, or WiMAX IP mode;
Step 419, if the user selects direct IP mode, terminal use local terminal address is as the source address of business datum, the WiFi Access Network directly is routed to business data packet its direct-connected external IP network; The WiFi Access Network may use the NAT technology that local ip address is converted to legal IP address in the external IP network.
The present embodiment has been realized in WiMAX network and WiFi network interworking framework, when the dual-mode terminal of supporting WiMAX access and WiFi access accesses by the WiFi Access Network, adopts direct IP connected mode to the access of outside Internet network.
Preferably, in said method, step 304 specifically comprises: terminal is when initiating service application, and the prompting user selects the IP connection mode, and the IP connection mode comprises direct IP connection mode and WiMAX IP connection mode; If the user selects WiMAX IP connection mode, the terminal far-end IP address is set to the source address of business datum, and is implemented to the Internet access of WiMAX network by the tunnel between terminal and IWK.
The present embodiment is selected the situation of WiMAX IP connection mode for the user, this moment, terminal used the far-end IP address of WiMAX network allocation as the source address of business datum, this business data packet is forwarded to IWK through the IP tunnel of WiFi Access Network, send to HA/LMA by IWK by the MIP/PMIP tunnel again, and business data packet is routed to by HA/LMA the external IP network that is connected with the WiMAX network; The WiFi Access Network may use the NAT technology that local ip address is converted to legal IP address in the external IP network.The present embodiment has been realized the Internet access of WiMAX IP connection mode simply and easily.
Fig. 5 shows the flow chart according to the Internet cut-in method of third embodiment of the invention, and the method comprises the following steps:
Step 501, starting up of terminal also carries out discovery and the selection of WiFi Access Network;
Step 502, terminal are carried out the association process of the WiFi Access Network of selecting;
Step 503, terminal is used the EAP method of 802.1X/EAPOL and selection, carry out the EAP authentication process of aaa server by the WiFi Access Network, in the EAP authentication process, the MSK that produces in terminal and aaa server, aaa server passes to the WiFi Access Network with MSK, and intercommunication IWK carries its address to terminal by EAP message in the EAP authentication process, IWK also can pass to terminal by mechanism such as DHCP information request or DNS inquiries except in the EAP authentication process, the IWK address being passed to terminal;
Step 504, after the EAP authentication process was completed, the WiFi Access Network was derived PMK according to MSK;
Step 505, the authentication device in terminal and WiFi Access Network is carried out 4 handshake procedures; In 4 handshake procedures, the authentication device of terminal and WiFi Access Network is derived PTK according to PMK;
Step 506, shake hands for 4 times complete after, the open 802.1x port of WiFi Access Network;
Step 507, terminal send dhcp discover message and are used for finding that to the WiFi Access Network Dynamic Host Configuration Protocol server is to carry out the host ip configuration;
Step 508, the WiFi Access Network Dynamic Host Configuration Protocol server by this locality is local ip address of terminal distribution and gives information by DHCP and return to terminal;
Step 509, terminal sends the DHCP request message to the WiFi Access Network, carries the IP address that obtains from DHCP gives information;
Step 510, the WiFi Access Network returns to the DHCP acknowledge message to terminal, confirms the use of this IP address and carries other configuration parameters to terminal;
Step 511, terminal be according to the IWK address of returning in step 403EAP authentication process, uses local terminal IP address to be established to the IP tunnel of IWK;
Step 512, terminal sends dhcp discover message by this IP tunnel, is used for the Dynamic Host Configuration Protocol server request far-end IP address to the WiMAX network;
Step 513 is after IWK receives dhcp discover message by IP tunnel, to the HA/LMA transmission MIP login request message/agent binding update messages of WiMAX CSN network;
Step 514, the HA/LMA of WiMAX CSN network returns to MIP registration reply message/agent binding update acknowledge message, wherein is included as the far-end IP address of terminal to apply; Like this, set up the MIP/PMIP tunnel between HA/LMA and IWK;
Step 515, IWK returns to DHCP by IP tunnel to terminal and gives information, and wherein comprises the far-end IP address that the WiMAX network is terminal to apply;
Step 516, terminal sends the DHCP request message by IP tunnel to IWK, carries the far-end IP address of obtaining from DHCP gives information;
Step 517, IWK returns to the DHCP acknowledge message by IP tunnel to terminal, confirm the use of this IP address and carry other configuration parameters to terminal, in step 411～417, to be established to the purpose that WiMAX network HA/LMA connects be to have when reaching to user's business when the WiMAX network in order to guarantee to terminal, can normally offer the user;
Step 518, when the user used by terminal originating service, terminal was to user's prompt service selection mode: directly IP mode, or WiMAX IP mode;
Step 519, if the user selects WiMAX IP mode, terminal need to obtain the WiMAX network allocation the IP address as far-end address, and carry out business by this address.Being specially terminal uses the far-end IP address of WiMAX network allocation as the source address of business datum, this business data packet is forwarded to IWK through the IP tunnel of WiFi Access Network, send to HA/LMA by IWK by the MIP/PMIP tunnel again, and business data packet is routed to by HA/LMA the external IP network that is connected with the WiMAX network.The WiFi Access Network may use the NAT technology that local ip address is converted to legal IP address in the external IP network.
The present embodiment has been realized in WiMAX network and WiFi network interworking framework, when the dual-mode terminal of supporting WiMAX access and WiFi access accesses by the WiFi Access Network, adopts WiMAX IP mode to the access of outside Internet network.
Fig. 6 shows the structure chart according to the Internet access device of fourth embodiment of the invention, and this device comprises:
IWK address acquisition module 601, the terminal that is used for the WiFi Access Network is carried out initial access authentication, and obtains the IWK address of IWK;
Local ip address acquisition module 602 is used for terminal and obtains the local ip address that the first Dynamic Host Configuration Protocol server of WiFi Access Network distributes;
Far-end IP address acquisition module 603 is used for terminal and obtains the far-end IP address of the second Dynamic Host Configuration Protocol server distribution of WiMAX network according to IWK address and local ip address;
at first support WiFi access in the present embodiment and the dual-mode terminal of WiMAX access adopt in the initial access authentication process of IWK address acquisition module 601 under the WiFi Access Network and obtain the IWK address, then the first Dynamic Host Configuration Protocol server that adopts local ip address acquisition module 602 to obtain the WiFi Access Network distributes, the local ip address that is used for direct IP connection mode, adopt again far-end IP address acquisition module 603 to obtain according to IWK address and local ip address that the second Dynamic Host Configuration Protocol server of WiMAX network distributes, the far-end IP address that is used for WiMAX IP connection mode, adopt at last access module 604 to receive the user to the selection of direct IP connection mode or WiMAX IP connection mode, and according to corresponding with selected IP connection mode IP address completing the Internet access.The present embodiment is applied in WiMAX network and WiFi network interworking framework, and terminal wherein is for supporting the dual-mode terminal of WiFi access and WiMAX access.Because terminal has successively been obtained local ip address and far-end IP address, the user is directly selecting in IP connected mode and WiMAX IP connected mode, can complete the selection to above two kinds of IP addresses, terminal can be completed the Internet access easily according to the IP address of correspondence, improve the efficient of network insertion and the real-time of transfer of data, improved user's experience.Because need not by means of the empty AP with SSID to realize the Internet access, need to carry out the whole network upgrading to traditional WiFi network so overcome the Internet cut-in method that is used for the WiFi Access Network in the correlation technique, affect huge, and the efficient of network insertion is lower, the real-time of transfer of data is relatively poor, thereby affects the problem that the user experiences.
Preferably, in said apparatus, IWK address acquisition module 601 specifically comprises: the EAP authenticating unit is used for terminal and obtains the IWK address by the EAP authentication.In the present embodiment, terminal adopts the EAP authenticating unit to obtain the IWK address, specifically be included in the EAP authentication process, produce MSK in terminal and aaa server, aaa server passes to the WiFi Access Network with MSK, and IWK carries its address (being IWK) to terminal by EAP message in the EAP authentication process.The present embodiment takes full advantage of the EAP authentication process of terminal, has improved the efficient of obtaining of IWK address, has saved Internet resources.
Preferably, in said apparatus, IWK address acquisition module 601 specifically comprises: the DHCP request unit is used for terminal by DHCP acquisition request IWK address.In the present embodiment, terminal adopts the DHCP request unit to obtain the IWK address, and namely terminal is obtained the IWK address alternately by carrying out dhcp message with IWK.Do like this, make obtaining of IWK address simple.
Preferably, in said apparatus, IWK address acquisition module 601 specifically comprises: the DNS query unit, and inquire about by DNS for terminal and obtain the IWK address.Do like this, make obtaining of IWK address simple.
As can be seen from the above description, the above embodiments of the present invention provide Internet access flexibly, have improved the efficient of network insertion and the real-time of transfer of data, have improved user's experience.
obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step being made into the single integrated circuit module realizes.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is only the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (12)
1. the method by adopting wireless fidelity technology WiFi access network selection access Internet, is characterized in that, comprises the following steps:
Support the dual-mode terminal of WiFi access and global inserting of microwave interoperability WiMAX access to carry out initial access authentication under the WiFi Access Network, and obtain the IWK address of IWF node IWK;
Described terminal is obtained the local ip address of the first dynamic host configuration protocol DHCP server-assignment of described WiFi Access Network, and described local ip address is used for the Internet access of direct IP connection mode;
Described terminal is obtained the far-end IP address of the second Dynamic Host Configuration Protocol server distribution of global inserting of microwave interoperability WiMAX network according to described IWK address and described local ip address, described far-end IP address is used for the Internet access of WiMAX IP connection mode;
Described terminal receives the user to the selection of described direct IP connection mode or described WiMAX IP connection mode, and according to corresponding with selected IP connection mode IP address completing the Internet access;
Wherein,
Described terminal is obtained according to described IWK address and described local ip address the far-end IP address that the second Dynamic Host Configuration Protocol server of WiMAX network distributes and specifically comprised: described terminal is established to the IP tunnel of described IWK according to described IWK address and described local ip address; Described terminal is obtained the far-end IP address of the second Dynamic Host Configuration Protocol server distribution of WiMAX network by described IP tunnel;
And complete the Internet access according to corresponding with selected IP connection mode IP address and specifically comprise: if described user selects described direct IP connection mode, the described local ip address of described terminal is set to the source address of business datum, and realizes directly accessing by the Internet of described WiFi Access Network.
2. method according to claim 1, is characterized in that, obtains the IWK address and specifically comprise:
Described terminal is obtained described IWK address by Extensible Authentication Protocol EAP authentication.
3. method according to claim 1, is characterized in that, obtains the IWK address and specifically comprise:
Described terminal is by the described IWK of DHCP acquisition request address.
4. method according to claim 1, is characterized in that, obtains the IWK address and specifically comprise:
Described terminal is inquired about by domain name system DNS and is obtained described IWK address.
5. method according to claim 1, is characterized in that, the local ip address that described terminal is obtained the first Dynamic Host Configuration Protocol server distribution of described WiFi Access Network specifically comprises:
Described terminal sends the first dhcp discover message to described WiFi Access Network;
Described WiFi Access Network sends a DHCP by described the first Dynamic Host Configuration Protocol server to described terminal and gives information, and a described DHCP gives information and comprises described local ip address;
Described terminal sends a DHCP request message to described WiFi Access Network, and a described DHCP request message comprises described local ip address;
Described WiFi Access Network sends a DHCP acknowledge message to described terminal, and a described DHCP acknowledge message comprises described local ip address and the first configuration parameter.
6. method according to claim 1, is characterized in that, described terminal specifically comprises by the far-end IP address that described IP tunnel obtains the second Dynamic Host Configuration Protocol server distribution of WiMAX network:
Described terminal sends the second dhcp discover message by described IP tunnel to described IWK;
Described IWK sends mobile IP MIP login request message/agent binding update messages to the home agent of described WiMAX network/regional mobile anchor point HA/LMA;
Described HA/LMA returns to MIP registration reply message/proxy binding acknowledgment messages to described IWK, and described MIP registration reply message/proxy binding acknowledgment messages comprises described far-end IP address;
Described IWK returns to the 2nd DHCP by described IP tunnel to described terminal and gives information, and described the 2nd DHCP gives information and comprises described far-end IP address;
Described terminal sends the 2nd DHCP request message to described IWK, and described the 2nd DHCP request message comprises described far-end IP address;
Described IWK sends the 2nd DHCP acknowledge message to described terminal, and described the 2nd DHCP acknowledge message comprises described far-end IP address and the second configuration parameter.
7. method according to claim 1, it is characterized in that, described terminal receives the user to the selection of described direct IP connection mode or described WiMAX IP connection mode, and completes the Internet access according to corresponding with selected IP connection mode IP address and specifically comprise:
Described terminal points out described user that the IP connection mode is selected when initiating service application, and described IP connection mode comprises direct IP connection mode and WiMAXIP connection mode;
If described user selects described direct IP connection mode, the described local ip address of described terminal is set to the source address of business datum, and realizes directly accessing by the Internet of described WiFi Access Network.
8. method according to claim 1, is characterized in that, described terminal reception user specifically comprises the selection of described direct IP connection mode or described WiMAX IP connection mode:
Described terminal points out described user that the IP connection mode is selected when initiating service application, and described IP connection mode comprises direct IP connection mode and WiMAXIP connection mode.
9. the device by adopting wireless fidelity technology WiFi access network selection access Internet, is characterized in that, comprising:
IWF node IWK address acquisition module is used for supporting that the dual-mode terminal of WiFi access and global inserting of microwave interoperability WiMAX access carries out initial access authentication under the WiFi Access Network, and obtains the IWK address of IWK;
The local ip address acquisition module is used for the local ip address that described terminal is obtained the first dynamic host configuration protocol DHCP server-assignment of described WiFi Access Network, and described local ip address is used for the Internet access of direct IP connection mode;
The far-end IP address acquisition module, be used for described terminal and obtain the far-end IP address of the second Dynamic Host Configuration Protocol server distribution of global inserting of microwave interoperability WiMAX network according to described IWK address and described local ip address, described far-end IP address is used for the Internet access of WiMAX IP connection mode; Wherein, described terminal is obtained according to described IWK address and described local ip address the far-end IP address that the second Dynamic Host Configuration Protocol server of WiMAX network distributes and specifically comprised: described terminal is established to the IP tunnel of described IWK according to described IWK address and described local ip address; Described terminal is obtained the far-end IP address of the second Dynamic Host Configuration Protocol server distribution of WiMAX network by described IP tunnel;
Access module is used for described terminal and receives the user to the selection of described direct IP connection mode or described WiMAX IP connection mode, and according to corresponding with selected IP connection mode IP address completing the Internet access.
10. device according to claim 9, is characterized in that, described IWK address acquisition module specifically comprises:
Extensible Authentication Protocol EAP authenticating unit is used for described terminal and obtains described IWK address by the EAP authentication.
11. device according to claim 9 is characterized in that, described IWK address acquisition module specifically comprises:
The DHCP request unit is used for described terminal by the described IWK of DHCP acquisition request address.
12. device according to claim 9 is characterized in that, described IWK address acquisition module specifically comprises:
The domain name system DNS query unit is inquired about by DNS for described terminal and is obtained described IWK address.
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| CN103188753B (en) * | 2011-12-27 | 2016-05-25 | 中国移动通信集团山东有限公司 | Carry out method and the device of transfer of data based on different links between heterogeneous network |
| KR102005771B1 (en) * | 2012-02-24 | 2019-10-01 | 삼성전자주식회사 | Method and apparatus for providing ip address in wireless communication network |
| CN102655646B (en) * | 2012-04-19 | 2016-09-21 | 深圳都好看互动电视有限公司 | A kind of method and device managing multiple hotspot |
| US9801124B2 (en) | 2012-05-01 | 2017-10-24 | Qualcomm Incorporated | Systems and methods for configuring connectivity in a wireless network |
| CN103347266B (en) * | 2013-07-26 | 2017-03-08 | 薛海强 | A kind of method for network access, apparatus and system |
| CN104023001B (en) * | 2013-12-25 | 2017-04-26 | 上海寰创通信科技股份有限公司 | Method for AC equipment to forward unauthorized message information |
| CN106249646A (en) * | 2016-08-11 | 2016-12-21 | 廖金能 | A kind of internet of things equipment monitoring system based on WIFI and data processing method thereof |
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