CN101998569A - Network interworking method, system and IWK (Issuer Working Key) for WiMAX (Worldwide Interoperability for Microwave Access) and WiFi (Wireless Fidelity) - Google Patents
Network interworking method, system and IWK (Issuer Working Key) for WiMAX (Worldwide Interoperability for Microwave Access) and WiFi (Wireless Fidelity) Download PDFInfo
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Abstract
The invention discloses a network interworking method, system and IWK (Issuer Working Key) for WiMAX (Worldwide Interoperability for Microwave Access) and WiFi (Wireless Fidelity). The method comprises the following steps of: establishing an internet protocol (IP) tunnel between a terminal positioned in a WiMAX network or a WiFi network and an interworking functional module IWK; and carrying out the interworking between the WiMAX network and the WiFi network by using the IP tunnel. The invention achieves the network interworking of the WiMAX network and the WiFi network and improves the technical effect of user experience.
Description
Technical field
The present invention relates to the communications field, relate in particular to network intercommunication method, system and the IWK of a kind of WiMAX of being used for and WiFi.
Background technology
WiMAX (World Interoperability for Microwave Access, World Interoperability for Microwave Access, WiMax) is based on the wireless access wide band technology of IEEE 802.16 standards, can effectively utilizes the limited wireless frequency spectrum resource and bigger bandwidth of air-interface (the highest 70Mbps data transmission capabilities) and wider transmission coverage (the transmission of wireless signals distance can reach 60 kilometers farthest) are provided.
WiFi (Wireless Fidelity, adopting wireless fidelity technology) is 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 (about about 100 meters) generally can only be as the replenishing of other wireless technology networking, and the WiFi network has advantages such as the networking expense is low, easy deployment.
In correlation technique, can not intercommunication between WiMAX and the WiFi network, the user when mobile, causes service disconnection between these two networks, influence user experience.
Summary of the invention
The object of the present invention is to provide network intercommunication method, system and the IWK of a kind of WiMAX of being used for and WiFi, can solve in the correlation technique between the WiMAX and WiFi network can not intercommunication, the service disconnection that the user causes when mobile between these two networks influences the technical problem of user experience.
According to an aspect of the present invention, a kind of network intercommunication method that is used for World Interoperability for Microwave Access, WiMax WiMAX and adopting wireless fidelity technology WiFi is provided, has comprised: set up the Internet Protocol IP tunnel between terminal in being in WiMAX network or WiFi network and the intercommunication operation functional module IWK; WiMAX network and WiFi network utilisation IP tunnel carry out intercommunication.
Preferably, set up the Internet Protocol IP tunnel between terminal in being in WiMAX network or WiFi network and the intercommunication operation functional module IWK and specifically comprise: terminal is initiated the domain name mapping to IWK, and the IP address that obtains IWK; Terminal is established to the IP tunnel of IWK according to the IP address.
Preferably, after IWK returned response, the IP tunnel that terminal is established to IWK also comprised before: the authentication and authorization charging aaa server is set up IP tunnel and is asked to carry out authentication, and after authentication was passed through, IWK returned response to terminal.
Preferably, WiMAX network and WiFi network utilisation IP tunnel carry out intercommunication and specifically comprise following a kind of: terminal inserts the WiMAX network by the WiFi Access Network; Terminal is switched between WiMAX network and WiFi network.
Preferably, terminal inserts the WiMAX network by the WiFi Access Network and specifically comprises: terminal access WiFi Access Network, and obtain local ip address; IWK carries out basic capability negotiating by IP tunnel and terminal, consult successfully after, IWK sends to access service network gateway ASN-GW and adheres to request in advance; ASN-GW triggers aaa server and by IP tunnel terminal is carried out authentication, and after authentication was passed through, IWK was attached to access service network gateway ASN-GW in advance; Terminal is obtained far-end IP address by IP tunnel from the WiMAX network; Terminal communicates by WiFi Access Network and WiMAX network.
Preferably, terminal is single wireless transmission terminal, and terminal is switched specifically between WiMAX network and WiFi network and comprised: be in terminal in the WiFi network and obtain target BS address in the WiMAX network; Terminal sends to target BS with hand off signaling by IP tunnel; The terminal switching is laid equal stress on and is entered into target BS; IWK sends the data channel register requirement to set up data channel between terminal and target BS to ASN-GW; Terminal switches to the WiMAX network.
Preferably, terminal is single wireless transmission terminal, and terminal is switched specifically between WiMAX network and WiFi network and comprised: be in terminal in the WiMAX network sends target WiFi Access Network to IWK by IP tunnel the pre-authentication signaling of EAP; IWK transmits the pre-authentication signaling of EAP and to target WiFi Access Network terminal is carried out authentication and target WiFi Access Network and trigger AAA terminal is carried out pre-authentication, pre-authentication successfully after, set up Security Association between terminal and the target WiFi Access Network; Terminal is established to the connection of target WiFi Access Network and obtains local ip address from target WiFi Access Network; IWK obtains MAC contextual information and AK contextual information; IWK sends the data channel register requirement to set up data channel between terminal and target WiFi Access Network to ASN-GW; Terminal switches to the WiFi network.
Preferably, terminal is two wireless transmission terminals, and terminal is switched specifically between WiMAX network and WiFi network and comprised: be in terminal in the WiFi network and obtain target BS address in the WiMAX network; Terminal sends distance measurement request to target BS; Target BS triggers IWK and obtains MAC context and AK context; IWK sends the data channel register requirement to set up data channel between terminal and target BS to ASN-GW; Terminal switches to the WiMAX network.
Preferably, terminal is two wireless transmission terminals, and terminal is switched specifically between WiMAX network and WiFi network and comprised: the terminal that is in the WiMAX network is established to being connected of target WiFi Access Network and obtains local ip address from target WiFi Access Network by IP tunnel; IWK obtains MAC contextual information and AK contextual information; IWK sends the data channel register requirement to set up data channel between terminal and target WiFi Access Network to ASN-GW; Terminal switches to the WiFi network.
According to another aspect of the present invention, a kind of intercommunication operation functional module IWK that is used for World Interoperability for Microwave Access, WiMax WiMAX and adopting wireless fidelity technology WiFi also is provided, comprise: retransmission unit, be used for the WiFi signaling from the WiMAX forwarded to the WiFi network, with the WiMAX signaling from the WiFi forwarded to the WiMAX network; Authenticating unit is used for sending authentication request to aaa server or ASN-GW; The data channel unit is used for sending the data channel register requirement to set up data channel between terminal and target access network to ASN-GW; Switch unit is used to obtain MAC contextual information and AK contextual information to finish the switching between WiMAX network and WiFi network.
According to a further aspect of the invention, a kind of network interworking system that is used for World Interoperability for Microwave Access, WiMax WiMAX and adopting wireless fidelity technology WiFi also is provided, comprise: intercommunication operation functional module IWK, the Internet Protocol IP tunnel that is used for being established to the terminal that is in WiMAX network or WiFi network with the WiFi signaling from the WiMAX forwarded to the WiFi network and with the WiMAX signaling from the WiFi forwarded to the WiMAX network, send authentication request to aaa server or ASN-GW, send the data channel register requirement between terminal and target access network, to set up data channel to ASN-GW, obtain MAC contextual information and AK contextual information to finish the switching between WiMAX network and WiFi network; The WiFi Access Network is positioned at the WiFi network side, is used for by IWK terminal being linked into the WiFi network from WiMAX; The WiMAX Access Network is positioned at the WiMAX network side, is used for by IWK terminal being linked into the WiMAX network from WiFi.
Preferably, system also comprises: aaa server is used for IP tunnel is carried out authentication.
Preferably, IWK is positioned at the WiMAX network side.
By means of above-mentioned at least one technical scheme of the present invention, by between terminal and IWK, setting up IP tunnel, make then and can utilize this IP tunnel to realize intercommunication between WiMAX and the WiFi network, can not intercommunication thereby solved in the correlation technique between the WiMAX and WiFi network, cause the friendly inadequately technical problem of user experience, reach and make WiMAX and WiFi network interworking, improve the technique effect of user experience.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the network intercommunication method that is used for WiMAX and WiFi of first embodiment of the invention;
Fig. 2 is the flow chart according to the network intercommunication method that is used for WiMAX and WiFi of second embodiment of the invention;
Fig. 3 is the flow chart according to the network intercommunication method that is used for WiMAX and WiFi of third embodiment of the invention;
Fig. 4 is the flow chart according to the network intercommunication method that is used for WiMAX and WiFi of fourth embodiment of the invention;
Fig. 5 is the flow chart according to the network intercommunication method that is used for WiMAX and WiFi of fifth embodiment of the invention;
Fig. 6 is the flow chart according to the network intercommunication method that is used for WiMAX and WiFi of sixth embodiment of the invention;
Fig. 7 is the block diagram according to the intercommunication operation functional module IWK that is used for WiMAX and WiFi of seventh embodiment of the invention;
Fig. 8 is the functional schematic of IWK shown in Figure 7;
Fig. 9 is the system construction drawing according to the network interworking system that is used for WiMAX and WiFi of eighth embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
In the following description, for the purpose of explaining, a plurality of specific details have been described, to provide to thorough of the present invention.Yet, obviously, do not having under the situation of these specific detail, also can realize the present invention, in addition, under the situation of not conflicting, promptly under the situation that does not deviate from the spirit and scope that claims illustrate, among following embodiment and the embodiment each details can be carried out various combinations.
First embodiment
Fig. 1 is the flow chart according to the network intercommunication method that is used for WiMAX and WiFi of first embodiment of the invention.As shown in Figure 1, the network intercommunication method that is used for WiMAX and WiFi according to first embodiment of the invention comprises:
Step S102 sets up the Internet Protocol IP tunnel between terminal in being in WiMAX network or WiFi network and the intercommunication operation functional module IWK;
Step S104, WiMAX network and WiFi network utilisation IP tunnel carry out intercommunication.
According to the network intercommunication method that is used for WiMAX and WiFi of first embodiment of the invention by between terminal and IWK, setting up IP tunnel, make then and can utilize this IP tunnel to realize intercommunication between WiMAX and the WiFi network, can not intercommunication thereby solved in the correlation technique between the WiMAX and WiFi network, cause the friendly inadequately technical problem of user experience, reach and make WiMAX and WiFi network interworking, improve the technique effect of user experience.
Preferably, set up the Internet Protocol IP tunnel between terminal in being in WiMAX network or WiFi network and the intercommunication operation functional module IWK and specifically comprise: terminal is initiated the domain name mapping to IWK, and the IP address that obtains IWK; Terminal is established to the IP tunnel of IWK according to the IP address.
IWK is responsible for terminal by the WiMAX network or carry out the foundation of IP tunnel to it by the WiFi network.The pre-registration flow process of WiMAX, WiFi when terminal just can be carried out WiFi initial network entry flow process and realize switching by this tunnel like this.
Preferably, after IWK returned response, the IP tunnel that terminal is established to IWK also comprised before: the authentication and authorization charging aaa server is set up IP tunnel and is asked to carry out authentication, and after authentication was passed through, IWK returned response to terminal.
For improving the fail safe in this tunnel, can utilize aaa server that this IP tunnel is set up and ask to carry out authentication.Alternatively,, also can not do authentication, directly set up this IP tunnel for ordinary crossing.
Preferably, WiMAX network and WiFi network utilisation IP tunnel carry out intercommunication and specifically comprise following a kind of: terminal inserts the WiMAX network by the WiFi Access Network; Terminal is switched between WiMAX network and WiFi network.
Preferably, terminal inserts the WiMAX network by the WiFi Access Network and specifically comprises: terminal access WiFi Access Network, and obtain local ip address; IWK carries out basic capability negotiating by IP tunnel and terminal, consult successfully after, IWK sends to access service network gateway ASN-GW and adheres to request in advance; ASN-GW triggers aaa server and by IP tunnel terminal is carried out authentication, and after authentication was passed through, IWK was attached to access service network gateway ASN-GW in advance; Terminal is obtained far-end IP address by IP tunnel from the WiMAX network; Terminal communicates by WiFi Access Network and WiMAX network.So that terminal can insert the WiMAX network by the WiFi Access Network.
Preferably, terminal is single wireless transmission terminal, and terminal is switched specifically between WiMAX network and WiFi network and comprised: be in terminal in the WiFi network and obtain target BS address in the WiMAX network; Terminal sends to target BS with hand off signaling by IP tunnel; The terminal switching is laid equal stress on and is entered into target BS; IWK sends the data channel register requirement to set up data channel between terminal and target BS to ASN-GW; Terminal switches to the WiMAX network.
In single wireless transmission (Single Radio, be called for short SR) when terminal switches to the WiMAX network from the WiFi network, the effect of IWK dummy source WiMAX BS.
Preferably, terminal is single wireless transmission terminal, and terminal is switched specifically between WiMAX network and WiFi network and comprised: be in terminal in the WiMAX network sends target WiFi Access Network to IWK by IP tunnel the pre-authentication signaling of EAP; IWK transmits the pre-authentication signaling of EAP and to target WiFi Access Network terminal is carried out authentication and target WiFi Access Network and trigger AAA terminal is carried out pre-authentication, pre-authentication successfully after, set up Security Association between terminal and the target WiFi Access Network; Terminal is established to the connection of target WiFi Access Network and obtains local ip address from target WiFi Access Network; IWK obtains MAC contextual information and AK contextual information; IWK sends the data channel register requirement to set up data channel between terminal and target WiFi Access Network to ASN-GW; Terminal switches to the WiFi network.
In the SR terminal when the WiMAX network switches to the WiFi network, IWK takes on WiFi signaling forwarding capability, the pre-registration signaling of transmitting the WiFi access is to target WiFi Access Network, and between terminal and WiFi Access Network, generate PMK Security Association (Pairwise MasterKey Security Association is called for short PMKSA) information.
Preferably, terminal is two wireless transmission terminals, and terminal is switched specifically between WiMAX network and WiFi network and comprised: be in terminal in the WiFi network and obtain target BS address in the WiMAX network; Terminal sends distance measurement request to target BS; Target BS triggers IWK and obtains MAC context and AK context; IWK sends the data channel register requirement to set up data channel between terminal and target BS to ASN-GW; Terminal switches to the WiMAX network.
In two wireless transmission (Dual Radio, be called for short DR) when terminal switches to the WiMAX network from the WiFi network, the effect of IWK dummy source WiMAX BS.
Preferably, terminal is two wireless transmission terminals, and terminal is switched specifically between WiMAX network and WiFi network and comprised: the terminal that is in the WiMAX network is established to being connected of target WiFi Access Network and obtains local ip address from target WiFi Access Network by IP tunnel; IWK obtains MAC contextual information and AK contextual information; IWK sends the data channel register requirement to set up data channel between terminal and target WiFi Access Network to ASN-GW; Terminal switches to the WiFi network.
In two wireless transmission terminals when the WiMAX network switches to the WiFi network, the effect of IWK simulated target WiMAX BS.
Having solved between correlation technique WiMAX and the WiFi network according to the network intercommunication method that is used for WiMAX and WiFi of first embodiment of the invention can not intercommunication, cause the friendly inadequately technical problem of user experience, reach and make WiMAX and WiFi network interworking, improve the technique effect of user experience.
Second embodiment
Fig. 2 is the flow chart according to the network intercommunication method that is used for WiMAX and WiFi of second embodiment of the invention.Present embodiment shows terminal inserts the WiMAX network by the WiFi Access Network initial network entry process.As shown in Figure 2, the network intercommunication method that is used for WiMAX and WiFi according to second embodiment of the invention comprises:
Step 201, terminal are established to the association (Association) between the WiFi Access Network;
Step 202, terminal is initiated to the EAP authentication of WiFi Access Network according to the 802.1x/EAPOL agreement, the WiFi Access Network is transmitted the EAP authentication message by radius protocol and is carried out access authentication and mandate to AAA, AAA accepts message by access and returns the authentication device that master session key (Master Session Key is called for short MSK) is given the WiFi Access Network when access authentication is finished;
Step 203, after access authentication was finished, terminal and WiFi Access Network generated PMK according to MSK;
Step 204, terminal and WiFi Access Network are carried out and are shaken hands for 4 times, generate encryption key and authenticate key according to PMK;
Step 205, the 802.1x port is separated obturation.The user just can the accesses network resource;
Step 206, terminal is obtained local ip address by dhcp process at the WiFi Access Network;
The DNS that step 207, terminal are carried out IWK initiates process, and gets access to the IP address of IWK;
Step 208, terminal are established to the IP tunnel of IWK; Optionally, if foundation is the IP secure tunnel, then IWK carries out the authentication of AAA to this tunnel;
Step 209, terminal by and the WiFi Access Network between the IP tunnel set up be initiated to the initiating ranging process of IWK;
Step 210, terminal is by carrying out basic capability negotiating between IP tunnel and the IWK;
Step 211 is carried out the pre-attaching process of MS between the authentication device among IWK and the ASN-GW;
Step 212, the authentication device among the ASN-GW is by the EAP authentication process of IP tunnel initiation to terminal; The EAP authentication process carries out between terminal and aaa server, and by the authentication device among IWK and the ASN-GW;
Step 213, terminal be by the PKMv2 three-way handshake process between IP tunnel and the IWK, and checking offers the validity of AK that is used to set up Security Association of terminal in advance;
Step 214, terminal is by carrying out the 802.16e registration process between IP tunnel and the IWK; The ability that this process carried terminal is supported, as the CS ability, mobility parameter and switching support etc.;
Step 215 is carried out the MS attaching process between the authentication device among IWK and the ASN-GW;
Step 216, ASN-GW initiates data channel to IWK and sets up process;
Step 217, IWK by set up between IP tunnel and the MS initial service flow and/pre-provisioned service flow;
Step 218, terminal is carried out IP mobility management process (as MIP registration or dhcp process) by IP tunnel and is obtained far-end IP address; At this moment, can be between UE and the WiMAX network by WiFi Access Network transmission data.
Having solved between correlation technique WiMAX and the WiFi network according to the network intercommunication method that is used for WiMAX and WiFi of second embodiment of the invention can not intercommunication, cause the friendly inadequately technical problem of user experience, reach and make WiMAX and WiFi network interworking, improve the technique effect of user experience.
The 3rd embodiment
Fig. 3 is the flow chart according to the network intercommunication method that is used for WiMAX and WiFi of third embodiment of the invention.Present embodiment shows the SR terminal switches to the WiMAX Access Network from the WiFi Access Network handoff procedure.As shown in Figure 3, the network intercommunication method that is used for WiMAX and WiFi according to third embodiment of the invention comprises:
Step 301, terminal begin to be attached to the WiMAX network by the WiFi Access Network.There is IP tunnel between terminal and the IWK;
Step 302, terminal are eated dishes without rice or wine by WiMAX or other modes get access to the BS information of WiMAX;
Step 303, the pre-registration of WiMAX network is carried out in the terminal decision;
Step 304, terminal is carried out the flow process of handoff preparation phase, the switching of control fully of the similar WiMAX agreement regulation of this flow process;
Step 305, terminal is carried out the flow process in change action stage, the switching of control fully of the similar WiMAX agreement regulation of this flow process;
Step 306, terminal is to the switching of WiMAX Access Network;
Step 307, terminal initiates to switch the network re-entry process by send the RNG request message to target BS.Target BS is returned the RNG response, has finished network between sign terminal and the target BS and has reentered;
Step 308 is initiated the data channel registration process between target BS and the grappling ASN-GW;
Step 309, after network re-entry was finished, target BS was initiated CMAC key count update process, upgrades the up-to-date CMAC key count value of obtaining from terminal to ASN-GW;
Step 310, serving BS broadcasts notice IWK sends to switch and finishes;
Step 311, IWK returns to switch to serving BS broadcasts and confirms;
Step 312, after being accomplished to the data channel registration process of target BS, grappling ASN-GW is initiated to the data channel of IWK and goes registration process; At this moment, transmit data by the WiMAX Access Network between UE and the WiMAX network.
Having solved between correlation technique WiMAX and the WiFi network according to the network intercommunication method that is used for WiMAX and WiFi of third embodiment of the invention can not intercommunication, cause the friendly inadequately technical problem of user experience, reach and make WiMAX and WiFi network interworking, improve the technique effect of user experience.
The 4th embodiment
Fig. 4 is the flow chart according to the network intercommunication method that is used for WiMAX and WiFi of fourth embodiment of the invention.Present embodiment shows the SR terminal switches to the WiFi Access Network from the WiMAX Access Network handoff procedure.As shown in Figure 4, the network intercommunication method that is used for WiMAX and WiFi according to fourth embodiment of the invention comprises:
Step 401, terminal are attached to the WiMAX Access Network, transmit data by the WiMAX Access Network between UE and the WiMAX network;
Step 402, the session that target WiFi network is set up in the terminal decision;
Step 403, terminal is carried out the IP address that IWK finds and obtains IWK;
Step 404 is set up the IP tunnel by the WiMAX Access Network between terminal and the IWK;
Step 405, terminal is carried out the pre-authentication of EAP of target WiFi Access Network by the IP tunnel of WiMAX network, and the WiFi Access Network transmits the pre-authentication message of EAP by radius protocol and carries out access authentication and mandate to aaa server; Aaa server is accepted message by access and is returned the authentication device that master session key (Master Session Key is called for short MSK) is given the WiFi Access Network when access authentication is finished;
Step 406, after access authentication is finished, terminal and WiFi Access Network generate PMKSA according to MSK, this Security Association comprises information such as the authorization parameter of PMKID, authentication device MAC Address, PMK, lifetime, authentication and IKMP (Authentication and Key ManagementProtocol, be called for short AKMP), authentication server regulation or local configuration;
Step 407, terminal discharges IP tunnel behind the pre-registration that is accomplished to target WiFi Access Network, but needs to continue the PMKSA information that buffer memory generates;
Step 408, the access of WiFi wireless network is carried out in the terminal decision;
Step 409, terminal are carried out the association process of WiFi Access Network, wherein the PMKID of the PMKSA that carried terminal and WiFi Access Network are set up in the pre-registration process in Jian Zhuan safety net (Robust Security Network the is called for short RSN) information;
Step 410, the WiFi Access Network gets access to the PMKSA of buffer memory according to the PMKID of terminal indication, then skips the EAP authentication process, directly shakes hands for 4 times with the terminal execution, and return the PMKID of the PMKSA of selection in first message of shaking hands for 4 times.Terminal and WiFi Access Network are derived PTK according to PMK, generate GTK etc.;
Step 411, the 802.1x port of IWK is separated obturation;
Step 412, terminal is obtained local ip address by dhcp process at the WiFi Access Network;
Step 413, terminal are established to the IP tunnel of IWK.Optionally, if foundation is the IP secure tunnel, IWK need carry out the authentication of AAA to this tunnel; The IP address of IWK obtains in step 403;
Step 414, the uncontrolled switching of WiMAX network is carried out in the tunnel that terminal is set up by the WiFi network; Promptly send the range finding of RNG_REQ message execution on target BS by the tunnel to IWK, serving BS broadcasts ID wherein is the BS sign of WiMAX network insertion;
Step 415, IWK obtains the MAC contextual information from serving BS broadcasts;
Step 416, IWK obtains the AK contextual information from ASN-GW;
Step 417, IWK returns RNG_RSP message by the IP tunnel of WiFI network to terminal, and affirmation network re-entry process is finished;
Step 418, IWK initiates the registration process of data channel to ASN-GW; This step also can be initiated after step 417 is finished at any time;
Step 419, after the MS network re-entry was finished, the authentication device of IWK in ASN-GW initiated CMAC key number of times renewal process;
Step 420, IWK notification service BS switching is finished;
Step 421, serving BS broadcasts are returned to switch to IWK and are confirmed;
Step 422, serving BS broadcasts is initiated data channel to ASN-GW and is gone registration process, discharges WiMAX access network resource information; At this moment, transmit data by the WiFi Access Network between UE and the WiMAX network.
Having solved between correlation technique WiMAX and the WiFi network according to the network intercommunication method that is used for WiMAX and WiFi of fourth embodiment of the invention can not intercommunication, cause the friendly inadequately technical problem of user experience, reach and make WiMAX and WiFi network interworking, improve the technique effect of user experience.
The 5th embodiment
Fig. 5 is the flow chart according to the network intercommunication method that is used for WiMAX and WiFi of fifth embodiment of the invention.Present embodiment shows the DR terminal switches to the WiMAX Access Network from the WiFi Access Network handoff procedure.As shown in Figure 5, the network intercommunication method that is used for WiMAX and WiFi according to fifth embodiment of the invention comprises:
Step 501, terminal is attached to the WiMAX network by the WiFi Access Network, has IP tunnel between terminal and the IWK;
Step 502, terminal are eated dishes without rice or wine by WiMAX or other modes get access to WiMAXBS information;
Step 503, terminal decision switch to the WiMAX wireless channel and carry out the switching flow of similar non-control handoff procedure;
Step 504, terminal begin to find range on target BS, and comprise serving BS broadcasts ID (promptly distributing to the BSID of IWK) in the RNG request message;
Step 505, target BS is initiated MAC context acquisition process to IWK;
Step 506, target BS is initiated AK context acquisition process to ASM-GW;
Step 507, target BS sends ranging response message to confirm the HMAC/CMAC group and to comprise the handoff procedure preferred parameter to terminal;
Step 508, target BS is initiated the data channel registration process to ASN-GW;
Step 509, after completing successfully terminal network and reentering, target BS is initiated CMAC key count update process to upgrade the up-to-date CMAC key count value of receiving from terminal to ASN-GW;
Step 510, serving BS broadcasts notice IWK switching is finished;
Step 511, IWK returns to switch to serving BS broadcasts and confirms;
Step 512, complete successfully with target BS data channel registration process after, IWK goes registration process to ASN-GW to initiating data channel; At this moment, transmit data by the WiMAX Access Network between UE and the WiMAX network.
Having solved between correlation technique WiMAX and the WiFi network according to the network intercommunication method that is used for WiMAX and WiFi of fifth embodiment of the invention can not intercommunication, cause the friendly inadequately technical problem of user experience, reach and make WiMAX and WiFi network interworking, improve the technique effect of user experience.
The 6th embodiment
Fig. 6 is the flow chart according to the network intercommunication method that is used for WiMAX and WiFi of sixth embodiment of the invention.Present embodiment shows the DR terminal switches to the WiFi Access Network from the WiMAX Access Network handoff procedure.As shown in Figure 6, the network intercommunication method that is used for WiMAX and WiFi according to sixth embodiment of the invention comprises:
Step 601, terminal are linked into the WiMAX Access Network;
Step 602, the terminal decision switches to the WiFi wireless channel and carries out handoff procedure;
Step 603～610, terminal inserts the WiFi Access Network, and is established to the IP tunnel of IWK, and its process is similar to step 201～208 among Fig. 2;
Step 611, the IP tunnel that terminal is set up by the WiFi network is carried out the uncontrolled switching of WiMAX network; Promptly send the range finding of RNG_REQ message execution on target BS (being IWK) by the tunnel to IWK, serving BS broadcasts ID wherein is the BS sign of WiMAX network insertion;
Step 612, IWK obtains the MAC contextual information from serving BS broadcasts;
Step 613, IWK obtains the AK contextual information from ASN-GW;
Step 614, IWK returns RNG_RSP message by the IP tunnel of WiFi network to terminal, and affirmation network re-entry process is finished;
Step 615, IWK initiates the registration process of data channel to ASN-GW; This step can be initiated after finishing in step 613 step at any time;
Step 616, after the MS network re-entry was finished, the authentication device of IWK in ASN-GW initiated CMAC key number of times renewal process;
Step 617, IWK notification service BS switching is finished;
Step 618, serving BS broadcasts are returned to switch to IWK and are confirmed;
Step 619, serving BS broadcasts is initiated data channel to ASN-GW and is gone registration process, discharges WiMAX access network resource information; At this moment, transmit data by the WiFi Access Network between UE and the WiMAX network.
Having solved between correlation technique WiMAX and the WiFi network according to the network intercommunication method that is used for WiMAX and WiFi of sixth embodiment of the invention can not intercommunication, cause the friendly inadequately technical problem of user experience, reach and make WiMAX and WiFi network interworking, improve the technique effect of user experience.
The 7th embodiment
Fig. 7 is the block diagram according to the intercommunication operation functional module IWK that is used for WiMAX and WiFi of seventh embodiment of the invention.
As shown in Figure 7, the IWK that is used for WiMAX and WiFi 700 according to seventh embodiment of the invention comprises: retransmission unit 702, be used for the WiFi signaling from the WiMAX forwarded to the WiFi network, with the WiMAX signaling from the WiFi forwarded to the WiMAX network; Authenticating unit 704 is used for sending authentication request to aaa server or ASN-GW; Data channel unit 706 is used for sending the data channel register requirement to set up data channel between terminal and target access network to ASN-GW; Switch unit 708 is used to obtain MAC contextual information and AK contextual information to finish the switching between WiMAX network and WiFi network.
IWK possesses tunnel management and authentication functions, WiMAX signaling forwarding capability, WiFi signaling forwarding capability, service flow management and datapath function, and handoff functionality.IWK is responsible for terminal and initially inserts the WiMAX network by the WiFi Access Network and carry out authentication and mandate, guarantees terminal business continuance during switching mutually between WiMAX Access Network and WiFi Access Network.
The function diagram of IWK is described in detail the various functions of IWK with reference to Fig. 8 as shown in Figure 8 below.
The tunnel management function: the tunnel that is established to IWK when being responsible for coordinating to be linked into the WiMAX Network when terminal is carried out from WiFi Access Network initial network entry is set up; When carrying out the pre-registration process of switching from the WiMAX Access Network to the WiFi Access Network, responsible coordination terminal is established to the tunnel foundation of IWK by the WiMAX Access Network; When carrying out the pre-registration process of switching from the WiFi Access Network to the WiMAX Access Network, responsible coordination terminal is established to the tunnel foundation of IWK by the WiFi Access Network;
Authentication device: when the IP tunnel of setting up is the IP secure tunnel, be responsible for to the authentication of IP tunnel to AAA;
WiMAX signaling forwarding capability: the WiMAX signaling that the tunnel that the forwarding terminal is set up by the WiFi Access Network sends is to WiMAX Access Network service network gateway (Access ServiceNetwork GateWay, abbreviation ASN-GW);
WiFi signaling forwarding capability: the WiFi signaling that the tunnel that the forwarding terminal is set up by the WiMAX Access Network sends is to the WiFi Access Network;
Business Stream: the function that WiMAX BS possesses; The WiFi terminal is initial or switch the Business Stream of setting up by IP tunnel when going into the WiMAX network by the WiFi Access Network;
Datapath function: the function that WiMAX BS possesses; The WiFi terminal is initial or switch the data channel of setting up between the IWK and ASN-GW when going into the WiMAX network by the WiFi Access Network;
Handoff functionality: the function that WiMAX BS possesses; At WiFi Access Network dummy source BS when the WiMAX Access Network switches, at WiMAX Access Network simulated target BS when the WiFi Access Network switches; Carry out controlled or uncontrolled hand off signaling flow process.
Having solved between correlation technique WiMAX and the WiFi network according to the IWK that is used for WiMAX and WiFi of seventh embodiment of the invention can not intercommunication, cause the friendly inadequately technical problem of user experience, reach and make WiMAX and WiFi network interworking, improve the technique effect of user experience.
The 8th embodiment
Fig. 9 is the system construction drawing according to the network interworking system that is used for WiMAX and WiFi of eighth embodiment of the invention.
As shown in Figure 9, the network interworking system that is used for WiMAX and WiFi according to eighth embodiment of the invention comprises: intercommunication operation functional module IWK 700, the Internet Protocol IP tunnel that is used for being established to the terminal that is in WiMAX network or WiFi network with the WiFi signaling from the WiMAX forwarded to the WiFi network and with the WiMAX signaling from the WiFi forwarded to the WiMAX network, send authentication request to aaa server or ASN-GW, send the data channel register requirement between terminal and target access network, to set up data channel to ASN-GW, obtain MAC contextual information and AK contextual information to finish the switching between WiMAX network and WiFi network; WiFi Access Network 902 is positioned at the WiFi network side, is used for by IWK terminal being linked into the WiMAX network from WiFi; WiMAX Access Network 904 is positioned at the WiMAX network side, is used for by IWK terminal being linked into the WiFi network from WiMAX.
According to the network interworking system that is used for WiMAX and WiFi of eighth embodiment of the invention by between terminal and IWK, setting up IP tunnel, make then and can utilize this IP tunnel to realize intercommunication between WiMAX and the WiFi network, can not intercommunication thereby solved in the correlation technique between the WiMAX and WiFi network, cause the friendly inadequately technical problem of user experience, reach and make WiMAX and WiFi network interworking, improve the technique effect of user experience.
Preferably, system also comprises: aaa server 906 is used for IP tunnel is carried out authentication.When the IP tunnel of setting up is the IP secure tunnel, be responsible for the authentication of IP tunnel to AAA.
Preferably, IWK is positioned at the WiMAX network side.So that as much as possible little to the influence of WiFi network, with the minimum that influences to the existing network framework.
In addition, system shown in Figure 9 has increased WWa newly in prior art system, WWb, WWc, WWd and WWe interface.Wherein, WWa is the interface that passes through the WiFi Access Network between terminal and the IWK; Be IP tunnel between terminal and the IWK, be used to transmit bimodulus SR terminal initial networking WiMAX networking signaling and the WiMAX pre-registration signaling when switching from the WiFi Access Network to the WiMAX Access Network; WWb is the interface that passes through the WiMAX Access Network between terminal and the IWK; Between terminal and the IWK IP tunnel (as IP secure tunnel or IP over IP ordinary crossing), the WiFi pre-registration signaling when being used to transmit bimodulus SR terminal and switching from the WiMAX Access Network to the WiFi Access Network; WWc is the interface between WiFi Access Network and the IWK; WiFi network resource reservation based on moving speed when being used to control bimodulus SR terminal and switching and transmit AP to the hand off signaling the AP from the WiMAX Access Network to the WiFi Access Network; WWd is the interface between WiFi Access Network and the ownership WiMAX network A AA, is used to transmit AAA charging signaling, realizes unified authentication, mandate and billing function; WWe: be used for the authentication when IP tunnel is set up when the IP tunnel of setting up is the IP secure tunnel.
In addition, can also comprise in the system as shown in Figure 9: wireless access node (AccessPoint abbreviates AP as): 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 the cable network; Access controller (Access Controller is called for short AC): be positioned at the WiFi Access Network, between WiFi and Internet, play gateway function, will converge, insert Internet from the data of different AP.AC can come to finish for the user functions such as access authentication and authentication by operator logo as client; Home agent (Home Agent is called for short HA) etc.
Having solved between correlation technique WiMAX and the WiFi network according to the network interworking system that is used for WiMAX and WiFi of eighth embodiment of the invention can not intercommunication, cause the friendly inadequately technical problem of user experience, reach and make WiMAX and WiFi network interworking, improve the technique effect of user experience.
In a word, having solved between correlation technique WiMAX and the WiFi network according to the network intercommunication method that is used for WiMAX and WiFi, system and the IWK of the embodiment of the invention can not intercommunication, cause the friendly inadequately technical problem of user experience, reach and make WiMAX and WiFi network interworking, improve the technique effect of user experience.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a network intercommunication method that is used for World Interoperability for Microwave Access, WiMax WiMAX and adopting wireless fidelity technology WiFi is characterized in that, comprising:
Set up the Internet Protocol IP tunnel between terminal in being in WiMAX network or WiFi network and the intercommunication operation functional module IWK;
Described WiMAX network and the described IP tunnel of WiFi network utilisation carry out intercommunication.
2. method according to claim 1 is characterized in that, sets up the Internet Protocol IP tunnel between terminal in being in WiMAX network or WiFi network and the intercommunication operation functional module IWK and specifically comprises:
Described terminal is initiated the domain name mapping to described IWK, and the IP address that obtains described IWK;
Described terminal is established to the described IP tunnel of described IWK according to described IP address.
3. method according to claim 2 is characterized in that, after described IWK returned response, the described IP tunnel that described terminal is established to described IWK also comprised before:
The authentication and authorization charging aaa server is set up described IP tunnel and is asked to carry out authentication, and after authentication was passed through, described IWK returned response to described terminal.
4. method according to claim 1 is characterized in that, described WiMAX network and the described IP tunnel of WiFi network utilisation carry out intercommunication and specifically comprise following a kind of:
Described terminal inserts described WiMAX network by described WiFi Access Network;
Described terminal is switched between described WiMAX network and WiFi network.
5. method according to claim 4 is characterized in that, described terminal inserts described WiMAX network by described WiFi Access Network and specifically comprises:
Described terminal inserts described WiFi Access Network, and obtains local ip address;
Described IWK carries out basic capability negotiating by described IP tunnel and described terminal, consult successfully after, described IWK sends to access service network gateway ASN-GW and adheres to request in advance;
Described ASN-GW triggers described aaa server and by described IP tunnel described terminal is carried out authentication, and after authentication was passed through, described IWK was attached to access service network gateway ASN-GW in advance;
Described terminal is obtained far-end IP address by described IP tunnel from the WiMAX network;
Described terminal communicates by described WiFi Access Network and described WiMAX network.
6. method according to claim 4 is characterized in that, described terminal is single wireless transmission terminal, and described terminal is switched specifically between described WiMAX network and WiFi network and comprised:
Be in described terminal in the WiFi network and obtain target BS address in the described WiMAX network;
Described terminal sends to described target BS with hand off signaling by described IP tunnel;
Described terminal switching is laid equal stress on and is entered into described target BS;
Described IWK sends the data channel register requirement to set up data channel between described terminal and described target BS to ASN-GW;
Described terminal switches to described WiMAX network.
7. method according to claim 4 is characterized in that, described terminal is single wireless transmission terminal, and described terminal is switched specifically between described WiMAX network and WiFi network and comprised:
Be in described terminal in the WiMAX network sends target WiFi Access Network to described IWK by described IP tunnel the pre-authentication signaling of EAP;
Described IWK transmits the pre-authentication signaling of described EAP and to described target WiFi Access Network described terminal is carried out authentication and described target WiFi Access Network and trigger described AAA described terminal is carried out pre-authentication, after the pre-authentication success, set up Security Association between described terminal and the described target WiFi Access Network;
Described terminal is established to the connection of target WiFi Access Network and obtains local ip address from described target WiFi Access Network;
Described IWK obtains MAC contextual information and AK contextual information;
Described IWK sends the data channel register requirement to set up data channel between described terminal and described target WiFi Access Network to ASN-GW;
Described terminal switches to described WiFi network.
8. method according to claim 4 is characterized in that, described terminal is two wireless transmission terminals, and described terminal is switched specifically between described WiMAX network and WiFi network and comprised:
Be in described terminal in the WiFi network and obtain target BS address in the described WiMAX network;
Described terminal sends distance measurement request to described target BS;
Described target BS triggers described IWK and obtains MAC context and AK context;
Described IWK sends the data channel register requirement to set up data channel between described terminal and described target BS to ASN-GW;
Described terminal switches to described WiMAX network.
9. method according to claim 4 is characterized in that, described terminal is two wireless transmission terminals, and described terminal is switched specifically between described WiMAX network and WiFi network and comprised:
The described terminal that is in the WiMAX network is established to the connection of target WiFi Access Network and obtains local ip address from described target WiFi Access Network by described IP tunnel;
Described IWK obtains MAC contextual information and AK contextual information;
Described IWK sends the data channel register requirement to set up data channel between described terminal and described target WiFi Access Network to ASN-GW;
Described terminal switches to described WiFi network.
10. an intercommunication operation functional module IWK who is used for World Interoperability for Microwave Access, WiMax WiMAX and adopting wireless fidelity technology WiFi is characterized in that, comprising:
Retransmission unit is used for the WiFi signaling from the WiMAX forwarded to the WiFi network, with the WiMAX signaling from described WiFi forwarded to described WiMAX network;
Authenticating unit is used for sending authentication request to aaa server or ASN-GW;
The data channel unit is used for sending the data channel register requirement to set up data channel between terminal and target access network to ASN-GW;
Switch unit is used to obtain MAC contextual information and AK contextual information to finish the switching between described WiMAX network and described WiFi network.
11. a network interworking system that is used for World Interoperability for Microwave Access, WiMax WiMAX and adopting wireless fidelity technology WiFi is characterized in that, comprising:
Intercommunication operation functional module IWK, the Internet Protocol IP tunnel that is used for being established to the terminal that is in WiMAX network or WiFi network with the WiFi signaling from the WiMAX forwarded to the WiFi network and with the WiMAX signaling from described WiFi forwarded to described WiMAX network, send authentication request to aaa server or ASN-GW, send the data channel register requirement between terminal and target access network, to set up data channel to ASN-GW, obtain MAC contextual information and AK contextual information to finish the switching between described WiMAX network and described WiFi network;
The WiFi Access Network is positioned at described WiFi network side, is used for by described IWK terminal being linked into described WiFi network from described WiMAX;
The WiMAX Access Network is positioned at described WiMAX network side, is used for by described IWK terminal being linked into described WiMAX network from described WiFi.
12. system according to claim 11 is characterized in that, also comprises:
Aaa server is used for described IP tunnel is carried out authentication.
13. system according to claim 11 is characterized in that, described IWK is positioned at described WiMAX network side.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101661566A CN101998569A (en) | 2009-08-14 | 2009-08-14 | Network interworking method, system and IWK (Issuer Working Key) for WiMAX (Worldwide Interoperability for Microwave Access) and WiFi (Wireless Fidelity) |
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| CN2009101661566A CN101998569A (en) | 2009-08-14 | 2009-08-14 | Network interworking method, system and IWK (Issuer Working Key) for WiMAX (Worldwide Interoperability for Microwave Access) and WiFi (Wireless Fidelity) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103581351A (en) * | 2012-07-27 | 2014-02-12 | 腾讯科技（深圳）有限公司 | Method and device for having access to network |
| CN103687057B (en) * | 2012-09-24 | 2016-12-21 | 广达电脑股份有限公司 | Wi-Fi wireless network access point and system for establishing data transmission channel |
-
2009
- 2009-08-14 CN CN2009101661566A patent/CN101998569A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103581351A (en) * | 2012-07-27 | 2014-02-12 | 腾讯科技（深圳）有限公司 | Method and device for having access to network |
| CN103581351B (en) * | 2012-07-27 | 2019-07-12 | 腾讯科技（深圳）有限公司 | The method and apparatus of network access |
| CN103687057B (en) * | 2012-09-24 | 2016-12-21 | 广达电脑股份有限公司 | Wi-Fi wireless network access point and system for establishing data transmission channel |
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Application publication date: 20110330 |