CN101472308B - Method and device for implementing switch between WiMAX system and 3GPP system - Google Patents
Method and device for implementing switch between WiMAX system and 3GPP system Download PDFInfo
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Abstract
The embodiment of the invention discloses a method for realizing handoff between a WiMAX system and a 3GPP system. The method comprises the following steps: terminal data service receives a request message for establishing target network transmission link when switching between the WiMAX system and the 3GPP system; IP address information assigned for the source network is obtained; the target network transmission link is established by using the IP address information for the transmission of terminal data traffic. Meanwhile, the invention further discloses a device for realizing the handoff between the WiMAX system and the 3GPP system. In the invention, because MA-PDG can use the assigned IP address information on the transmission link established between target networks when receiving request message for establishing objective network transmission link, so that the continuity of data traffic can be ensured during handoff process.
Description
Technical field
The present invention relates to communication technical field; Relate in particular to a kind of realization global intercommunication microwave connecting system (WiMAX; Worldwide Interoperability Microwave Access System) with third generation partner program (3GPP, the 3rd Generation Partner Project) system between the method and apparatus that switches.
Background technology
In WiAMX system and 3GPP system, be connected business network (GSM at present; ConnectiveService Network)/network architecture of intercommunication mode between GPRS (GPRS, the General Packet Radio Service) network is as shown in Figure 1.
Packet data gateway among Fig. 1 (PDG, Packet Digital Gateway) 101 is used for inserting the business that is in WiMAX system user terminal (MS) 102, is responsible for said MS102 and distributes far-end IP address to be connected the tunnel with the IP that sets up towards the 3GPP system.
When the MS102 that is in the 3GPP system inserts the WiMAX system; Base station (BS) in said MS102 and the WiMAX system is set up between 103 and is eated dishes without rice or wine to connect; Access business network gateway (ASN-GW in said then BS103 foundation and the WiMAX system; Access Service Network Gateway) IP between 104 connects the tunnel, and after foundation, notifies the said MS102 of said ASN-GW104 attached to the WiMAX system by said BS103.Said ASN-GW104 connects business network (CSN through being positioned at; Connective Service Network) aaa server (Authentication Authorization Accounting Server) 107 that connects in 3GPP systems of the agency of the AAA in 105 (AuthenticationAuthorization Accounting Proxy) 106 is to carry out authentication and the authentication to said MS102.Wherein, the information relevant with authentication and authentication is from attaching position register (HLR, Home Location Register) 108.After accomplishing authentication and authentication, said MS102 sets up the connection of leading to said ASN-GW104 again, is initiated to be established to mobile IP (MIP, Mobile IP) the connection tunnel of home agent (HA, Home Agent) server 109 again by said ASN-GW104.Said HA server 109 is that said MS102 distributes near-end IP address.
When MIP connect the tunnel set up accomplish after, said MS102 initiate again the to connect IP tunnel of said PDG101 connects (for example: IP security tunnel, i.e. ipsec tunnel) and comes service data transmission.Said IP tunnel process said BS103, said ASN-GW104 and said HA server 109, and terminate in said PDG101.Said PDG101 also need carry out secondary authentication and authentication to said MS102 in the process of setting up the IP tunnel connection, and is that said MS102 distributes far-end IP address so that connect the external data traffic network.
Yet in carrying out the invention process, the inventor finds to exist at least in the prior art following problem:
Because MS102 is carrying out when the 3GPP system switches to the WiMAX system; MS102 need be from the gateway support node (GGSN the 3GPP system; Gateway GPRS Support Node) (not shown) switches on the PDG101; Again be attached to the WiMAX system and set up IP tunnel and be connected by said PDG101 then, said PDG101 can be said MS102 distributing IP address again.Thereby possibly cause the data service of MS102 current application to be interrupted.Also be that prior art can't realize switching truly, have only MS102 after switching to new system, to restart business again, and understand the normal operation of traffic affecting like this but also can bring very big inconvenience to the user.
Equally, when the WiMAX system switches to the 3GPP system, there is above-mentioned similar problem for MS102 too.
Summary of the invention
The purpose of the embodiment of the invention is the method and apparatus that switches between a kind of WiMAX of realization system and 3GPP system is provided, and the business that can be implemented between WiMAX system and the 3GPP system when switching is not interrupted.
The method of switching between a kind of WiMAX of realization system that the embodiment of the invention provides and 3GPP system comprises:
In the process that terminal data service is switched between WiMAX system and 3GPP system, the message of target network transmission link is set up in the request of reception;
Obtain the terminal and distributed the IP address information that obtains at source network;
Use said IP address information to be based upon the transmission link in the objective network, for the transmission of said terminal data service;
Before the message of target network transmission link was set up in the request of reception, said method also comprised:
Reception comes from the notice of attaching position register;
When learning that from said notice said terminal when source network switches to objective network, stops the downlink data of source network is sent to said terminal.
Based on technique scheme, the embodiment of the invention also provides device for switching between a kind of realization WiMAX system and 3GPP system, comprising:
Receiving element is used for working as the process that terminal data service is switched between WiMAX system and 3GPP system, the message of target network transmission link is set up in the request of reception;
Acquiring unit is used for after learning that said receiving element receives that described request is set up the message of target network transmission link, obtains the terminal and has distributed the IP address information that obtains at source network;
Transmission link is set up the unit, is used for using the IP address information of said acquiring unit to be based upon the transmission link in the objective network, for the transmission of said terminal data service;
Before the message of target network transmission link was set up in receiving element reception request, said device also was used to receive the notice that comes from attaching position register; When learning that from said notice said terminal when source network switches to objective network, stops the downlink data of source network is sent to said terminal.
Compared with prior art, the embodiment of the invention has the following advantages:
The embodiment of the invention is because when the message of target network transmission link is set up in the request of receiving; Can with the terminal in origin system, distributed the IP address information that obtains to be applied in and goal systems between in the transmission link set up, like this, when is carrying out when the 3GPP system switches to the WiMAX system at the terminal; When the terminal is attached to goal systems again and builds upright IP tunnel jointly and connect; Can be the new IP address of said terminal distribution again, and directly use this terminal in origin system, to distribute the IP address information that obtains, thereby guarantee that the IP address at said terminal does not change when having guaranteed between system to switch; Simultaneously; Because the IP address of using when switching is constant, the downlink data that therefore mails to this terminal from origin system also can still send to this terminal according to former IP address, thereby has guaranteed the continuity of data service in handoff procedure.
Description of drawings
Fig. 1 is the sketch map of intercommunication framework between prior art WiMAX system and 3GPP system;
Fig. 2 is the sketch map of intercommunication framework between WiMAX system of the present invention and 3GPP system;
Fig. 3 is the FB(flow block) of the present invention a kind of WiMAX system and the interoperability methods embodiment of 3GPP system;
Fig. 4 is the FB(flow block) of another kind of WiMAX system of the present invention and the interoperability methods embodiment of 3GPP system;
Fig. 5 is a kind of structural representation block diagram that installs embodiment of the present invention;
Fig. 6 is the structural representation block diagram of the another kind of device embodiment of the present invention;
Fig. 7 is the structural representation block diagram of another device embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the embodiment of the invention is done further elaboration in detail.
The embodiment of the invention provides the method for switching between a kind of 3GPP system and the WiMAX system; The network entity of an integrated GGSN and PDG function is set in the 3GPP system; Describe for ease, for the time being this network entity is called multiple access packet data gateway (MA-PDG) in embodiments of the present invention.The network configuration of intercommunication is as shown in Figure 2 between the described system of the embodiment of the invention; In Fig. 2; Said MA-PDG201 can also work as in the process that MS202 switches between 3GPP system and WiMAX system except can accomplishing original GGSN and PDG function, after receiving that the message of target network transmission link is set up in the request of reception; Can obtain the terminal and distribute the IP address information that obtains at source network; And use this IP address information to be based upon the transmission link in the goal systems, for the transmission of the data service of said MS202, thereby guarantee when MS202 switches between system the data service of transmission is not interrupted.
As shown in Figure 3, realize switching to the schematic process flow diagram of the method embodiment of WiMAX system from the 3GPP system for the present invention is a kind of.This embodiment comprises:
S301: the MS that has been linked into the 3GPP system is in moving process; When detecting the WiMAX wireless network signal; And decay along with the network signal of 3GPP system; After can't guaranteeing the normal transmission of data service again, the ASN-GW of said MS in said WiMAX system sends Attach Request message.Wherein, the domain-name information that includes MA-PDG in the said Attach Request message.
S302: said ASN-GW is after receiving said Attach Request message, through the adhere to information of aaa server to the said MS of said HLR server registration.Said MS is carried out authentication to said HLR server and after authentication was passed through, said HLR server sent user authentication information and the CAMEL-Subscription-Information of said MS to said ASN-GW through said aaa server.
S303: said ASN-GW notifies said MS attach request to be accepted.
S304: the said MS of the said aaa server of said HLR server notification has switched to the WiMAX access network from the 3GPP access network.
S305: the said MS of said aaa server notice MA-PDG has switched to the access network of WiMAX system from the access network of 3GPP system.
S306: after said MA-PDG receives the notice of said S305, stop the downlink data of source network is sent to said terminal.For example: the downlink data that stops the said MS of serving GPRS support node (SGSN, Serving GPRSSupport Node) transmission downstream.
S307: the said MS of the said SGSN of said HLR server notification has switched to the access network of WiMAX system from the access network of 3GPP system so that said SGSN is after receiving this notice, initiate MS in the 3GPP system from the net flow process.Wherein, because of said from the net flow process be the common practise in present technique field, repeat no more at this.
S308: said MS sends to said ASN-GW and sets up data connection (Data Path) request message, and said ASN-GW accepts this request message, and accomplishes the data establishment of connection.
S309: said MS sends configuration DynamicHost Address requests (DHCPRequest) message to said ASN-GW.
S310: said ASN-GW is according to the domain-name information of the MA-PDG in the Attach Request message of in S301, being received; Parse the IP address of MA-PDG; And send to said MA-PDG and to set up the IP tunnel connection request message, and to ask said MA-PDG simultaneously through this message be said MS distributing IP address.Wherein, the said IP tunnel connection request message of setting up can be specially: IKE (Internet Key Exchange) authentication request message of binding update messages of proxy-mobile IP (BU) or ipsec tunnel.
S311: said MA-PDG receive said set up the IP tunnel connection request message after; Set up with said ASN-GW between IP tunnel be connected; Distributed the IP address that obtains, service quality (Qos) information that the data of source network connect to be applied on said IP tunnel connects at source network said MS simultaneously, so that keep the service quality of data service not change.Simultaneously, said MA-PDG joins up-downgoing data route and the said IP tunnel join dependency that said MS leads to group data service network.
Wherein, It can be when origin system is adhered at said terminal and set up the IP tunnel connection that said MS has distributed the IP address that obtains, the Qos information of data connection and the up-downgoing data routing iinformation that leads to group data service network of said MS at source network; By said MA-PDG is that said terminal distribution obtains, and can before carrying out above-mentioned switching embodiment, be kept in advance on the said MA-PDG.Wherein, said MA-PDG is that the concrete realization of the above-mentioned information of terminal distribution can be that the operation of the above-mentioned information of terminal distribution is similar with PDG in the prior art, repeats no more at this.
S312: said MA-PDG notifies said ASN-GW successfully to set up IP tunnel, has distributed the IP address information that obtains to send to said ASN-GW said MS simultaneously, further can also preserve described IP address information by ASN-GW.
S313: said ASN-GW sends dhcp response message to said MS, also can distribute the IP address information that obtains also to send to said MS through this message said MS simultaneously, so that said MS uses this IP address to send existing data service.
S314: said MA-PDG switches to transmission in the new IP tunnel connection of having set up with the data service downlink data of MS; Simultaneously; Said MS also switches to transmission in the said new IP tunnel connection with upstream data, thereby realizes the switching from the 3GPP system to the WiMAX system.
In addition, among the above-mentioned S310, except sending to said MA-PDG, ASN-GW sets up the IP tunnel connection request message, to carry out IP tunnel establishment of connection from ASN-GW to said MA-PDG.In addition, can also be send to set up based on proxy-mobile IP (PMIP, Proxy Mobility IP) tunnel connection request message to the HA server by said ASN-GW, set up ASN-GW with request and be connected with PMIP tunnel between the HA server; And then send to said MA-PDG by said HA server and to set up the IP tunnel connection request message, carry out the connection of IP tunnel and set up.In addition, said ASN-GW is connected with IP tunnel between the said MA-PDG and can also be based on ipsec tunnel.
In addition, in above-mentioned S311, said MA-PDG can also be directly from aaa server or the IP address of the said MS of HLR acquisition.
In addition, in above-mentioned S312, said MA-PDG is not limited only to notify said ASN-GW.For example; When said MA-PDG be through the HA server when IP tunnel that said ASN-GW sets up is connected; Said MA-PDG then notifies the successful connection of the said IP tunnel of said HA server, simultaneously, has distributed the IP address information that obtains to send to said HA server said MS.By the said IP address information of said HA server for saving, more said IP address information is set up successful response message through the PMIP tunnel and send to said ASN-GW, further can also preserve this IP address information by ASN-GW.
Need to prove that the foregoing description can also be skipped and carry out said S304 to S306, and directly carry out said S307 and follow-up action after executing said S303.Correspondingly, MA-PDG stops can also to receive at MA-PDG described in the S311 of the foregoing description to the action that SGSN transmits the downlink data of said MS and saidly carries out after setting up the IP tunnel connection request message in said S306.
The foregoing description; Because said MA-PDG is receiving when setting up IP tunnel connection request message; Can with said MS in the 3GPP system, distributed the IP address information that obtains be applied in the WiMAX system in during the IP tunnel set up between the ASN-GW is connected; Thereby can guarantee that the IP address of said MS does not change when having guaranteed between system, to switch, therefore terminal data service not lost in handoff procedure, guarantee the continuity of data service in handoff procedure.
Simultaneously; Present embodiment connects to the IP tunnel between the MA-PDG owing to only having set up ASN-GW; IP tunnel between having replaced in the prior art from MS to MA-PDG connects, and therefore, has also avoided because of set up the time delay that IP tunnel is brought to the needed space interface signaling of PDG and secondary authentication from said MS.
As shown in Figure 4, switch to the schematic process flow diagram of the method embodiment of 3GPP system for the present invention is a kind of from the WiMAX system, this embodiment comprises:
S401: the MS that has been linked into the WiMAX system is in moving process; When the wireless network signal that detects the 3GPP system; And signal attenuation along with the WiMAX access network; After can't guaranteeing the normal transmission of data service again, the SGSN of said MS in said 3GPP system sends Attach Request message.
S402: said SGSN is after receiving said Attach Request message, to the information of adhering to of the said MS of said HLR server registration.Said MS is carried out authentication to said HLR server and after authentication was passed through, said HLR server sent subscription authentication message and the signatory message of said MS to said SGSN.
S403: said SGSN notifies said MS attach request to be accepted.
S404: the said MS of the said aaa server of said HLR server notification has switched to the access network of 3GPP system from the access network of WiMAX system.
S405: said aaa server notifies the said MS of said MA-PDG to switch to the access network of 3GPP system from the access network of WiMAX system.
S406: after said MA-PDG receives the notice among the said S405, stop to send the downlink data of said MS to ASN-GW.
S407: said aaa server notifies the said MS of said ASN-GW to switch to the 3GPP access network from the WiMAX access network.Wherein, when being connected through the AAA agency between said aaa server and the said ASN-GW, then said aaa server can be through the said ASN-GW of said AAA agent advertisement.
S408: said MS sends to said SGSN and sets up the packet data protocol connection request message of leading to said MA-PDG, and said SGSN accepts this request message, and accomplishes the packet data protocol establishment of connection.Wherein, APN (APN, the Access point name) message that comprises addressing MA-PDG in the said packet data protocol connection request message.
S409: said SGSN creates block data protocol context, and from the packet data protocol connection request message of said MS, obtains said APN information, and said APN information analysis is obtained the IP address of the original MA-PDG that connects of said MS.Then, said SGSN sends to the MA-PDG of this IP address and sets up packet data protocol connection request message.
S410: said MA-PDG when receive said set up packet data protocol connection request message after; Notify said ASN-GW deletion to connect for the IP tunnel that said MS sets up; So that said ASN-GW is after receiving this notice, initiate MS in the WiMAX system from the net flow process.Wherein, because of said from the net flow process be the common practise in present technique field, repeat no more at this.
S411: said MA-PDG set up with SGSN between packet data protocol be connected; And said MS is applied on said packet data protocol connects in the Qos information that source network has distributed the data of the IP address that obtains, source network to connect, so that keep the service quality of data service not change.Simultaneously, said MA-PDG joins up-downgoing data route of leading to group data service network and the said packet data protocol join dependency of said MS.
Wherein, It can be when origin system is adhered at said terminal and set up the IP tunnel connection that said MS has distributed the IP address that obtains, the Qos information of data connection and the up-downgoing data routing iinformation that leads to group data service network of said MS at source network; By said MA-PDG is that said terminal distribution obtains, and can before carrying out above-mentioned switching embodiment, be kept in advance on the said MA-PDG.Wherein, said MA-PDG is that the concrete realization of the above-mentioned information of terminal distribution can be that the operation of the above-mentioned information of terminal distribution is similar with PDG in the prior art, repeats no more at this.
S412: said MA-PDG notifies said SGSN packet data protocol to connect and has created success, simultaneously, has distributed the IP address information that obtains to send to said SGSN said MS, further can also preserve described IP address information by SGSN.
S413: said SGSN sets up packet data protocol to said MS transmission and accepts message (CreatePDP Context Response); And distributed the IP address information that obtains also to send to said MS the said MS through this message, so that said MS uses this IP address to send existing data service.
S414: said MA-PDG switches to the new packet data protocol of having set up with the downlink data of the data service of said MS and transmits in connecting.Simultaneously, said MS also switches to transmission in the said new packet data protocol connection with upstream data, thereby realizes the switching from the WiMAX system to the 3GPP system.
In addition, when said ASN-GW was connected to said MA-PDG through the HA server, in said S407, said MA-PDG can also stop the downlink data to the said MS of said HA server forwards; And in said S410, said ASN-GW can also notify said HA server deletion to connect for the IP tunnel that said MS sets up.
In addition, in above-mentioned S409, the IP address that obtains the original MA-PDG that connects of said MS except SGSN resolves from said APN information obtain, can also from the HLR server, obtain by said SGSN.Certainly; From the HLR server, obtain and to insert the WiMAX network as said MS in advance; And the data of set up leading to MA-PDG are when connecting, and the address information of said MA-PDG are registered in the said HLR server through aaa server by said ASN-GW or HA server or MA-PDG self.
In addition, notice ASN-GW of MA-PDG described in the S410 of the foregoing description or the deletion of HA server can also be carried out after executing S405 for the action of the IP tunnel connection of said MS foundation.Simultaneously; Said ASN-GW initiates from the net flow process except when to receive deletion that said MA-PDG issues said ASN-GW be that IP tunnel that said MS sets up connects outside the notice back carries out; Can also be in above-mentioned S407; After said ASN-GW receives that the said MS of said aaa server transmission has switched to the notice of 3GPP access network from the WiMAX access network, initiatively initiate from the net flow process, also to notify said MA-PDG deletion to connect at this moment for the IP tunnel that said MS sets up.
In addition, in above-mentioned S411, said MA-PDG can also be directly from aaa server or the IP address of the said MS of HLR acquisition.
Need to prove that the foregoing description can also be skipped and carry out said S404 to S406, and directly carry out said S407 and follow-up action after executing said S403.Correspondingly, the action that MA-PDG stops to transmit to SGSN the downlink data of said MS in said S406 can also saidly be carried out after setting up packet data protocol connection request message when receiving at MA-PDG described in the S410 of the foregoing description.
The foregoing description; Because said MA-PDG is receiving when setting up packet data protocol connection request message; Thereby can with said MS in the WiMAX system, distributed the IP address information that obtains be applied in the 3GPP system in the packet data protocol set up between the SGSN guarantee that the IP address of said MS does not change when having guaranteed between system, to switch in being connected; Therefore terminal data service is not lost in handoff procedure, guarantee the continuity of data service in handoff procedure.
Based on technique scheme; The embodiment of the invention also discloses a kind of device for switching between WiMAX system and 3GPP system that is used to realize; The function of integrated GGSN of this device and PDG except can accomplishing original GGSN and PDG function, also is used for when MS switches between 3GPP system and WiMAX system; Use the terminal in source network, to distribute the IP address that obtains to be based upon the transmission link in the objective network, thereby assurance terminal business when switching is not interrupted.
As shown in Figure 5, realize the structural representation block diagram of device for switching embodiment between WiMAX system and 3GPP system for the present invention is a kind of, said device comprises: receiving element 501, acquiring unit 502, transmission link are set up unit 503, wherein,
Said receiving element 501 is used for the process that terminal data service is switched between WiMAX system and 3GPP system, the message of target network transmission link is set up in the request of reception;
Wherein, when the terminal when the 3GPP system switches to the WiMAX system, said receiving element 401 receives be by the requirement that ASN-GW in the WiMAX system sends set up and said ASN-GW between the IP tunnel connection request message;
When the terminal when the WiMAX system switches to the 3GPP system, said receiving element 501 receives be by the requirement that SGSN in the 3GPP system sends set up and said SGSN between packet data protocol connection request message.
Said acquiring unit 502 is used for after learning that said receiving element 501 receives that described request is set up the message of target network transmission link, obtains the terminal and has distributed the IP address information that obtains at source network; Wherein, said acquiring unit 502 can obtain from the information that self preserves in advance, perhaps can also be directly from aaa server or the IP address at the said terminal of HLR acquisition.
Said transmission link is set up unit 503, is used for using the IP address information of said acquiring unit 502 to be based upon the transmission link in the objective network, for the transmission of said terminal data service.In addition; Said acquiring unit 502 can also obtain Qos information that data that said terminal disposes connect and the up-downgoing data routing iinformation that leads to group data service network in source network, use when setting up the transmission link of unit 503 in setting up objective network for said transmission link.
Wherein, Said MS obtains for this terminal distribution when source network has distributed the up-downgoing data routing iinformation that leads to group data service network of Qos information that the data of the IP address that obtains, source network connect and said MS to adhere to origin system at the terminal by said device; And after distribution, can above-mentioned information be kept in the said device, so that said acquiring unit 502 can directly directly obtain from the information that this device prestores when switching in system.
On the basis of said apparatus embodiment; The invention also discloses a kind of device embodiment; As shown in Figure 6, be the structural solid block diagram of the another kind of device embodiment of the present invention, when the terminal when the 3GPP access network switches to the WiMAX access network; Said device also comprises on the basis of device embodiment shown in Figure 5:
Notify the purpose of said ASN-GW to be: after said ASN-GW receives said notice; Can send dhcp response message to said terminal; IP address information with said MS also sends to said MS through this message simultaneously; So that said MS uses this IP address correlation to existing data service, thereby guaranteed that data service can not lose because of the change of IP address in the process of switching.
In addition, when said switching device shifter and said ASN-GW are when being connected through the HA server, then said first notification unit 601 can send said notice to said ASN-GW through said HA server.
In addition; On the basis of above-mentioned device embodiment shown in Figure 5, the invention also discloses another kind of device embodiment, as shown in Figure 7; Structural solid block diagram for the another kind of device embodiment of the present invention; When the terminal when the WiMAX access network switches to the 3GPP access network, said device also comprises on the basis of device embodiment shown in Figure 5:
Notify the purpose of said SGSN to be: after said SGSN receives said notice; Can set up packet data protocol to the transmission of said terminal and accept message; IP address information with said MS also sends to said MS through this message simultaneously; So that said MS uses this IP address correlation to existing data service, thereby guaranteed that data service can not lose because of the change of IP address in the process of switching.
Need to prove; Said first notification unit 601 among the above-mentioned device embodiment shown in Figure 6; And second notification unit 701 among the device embodiment shown in Figure 7 can also be integrated among the device embodiment shown in Figure 5 simultaneously; Be respectively applied in different switching conditions, carry out function corresponding.
Device embodiment described above only is schematic; Wherein said unit as the separating component explanation can or can not be physically to separate also; The parts that show as the unit can be or can not be physical locations also; Promptly can be positioned at a place, perhaps also can be distributed on a plurality of NEs.Can realize the purpose of present embodiment scheme according to the needs selection some or all of module wherein of reality.Those of ordinary skills promptly can understand and implement under the situation of not paying performing creative labour.
Through the description of above execution mode, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words can be come out with the embodied of software product; This computer software product can be stored in the storage medium, like ROM/RAM, magnetic disc, CD etc., comprises that some instructions are with so that a computer equipment (can be a personal computer; Server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.
Above-described embodiment of the present invention does not constitute the qualification to protection range of the present invention.Any modification of within spirit of the present invention and principle, being done, be equal to replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a method that realizes switching between WiMAX system and 3GPP system is characterized in that, comprising:
In the process that terminal data service is switched between WiMAX system and 3GPP system, the message of target network transmission link is set up in the request of reception;
Obtain the terminal and distributed the IP address information that obtains at source network;
Use said IP address information to be based upon the transmission link in the objective network, for the transmission of said terminal data service;
Before the message of target network transmission link was set up in the request of reception, said method also comprised:
Reception comes from the notice of attaching position register;
When learning that from said notice said terminal when source network switches to objective network, stops the downlink data of source network is sent to said terminal.
2. changing method as claimed in claim 1 is characterized in that, when when the 3GPP system switches to the WiMAX system, the message that target network transmission link is set up in said reception request is specially:
Receive the IP tunnel connection request message between the access business network gateway in foundation and the WiMAX system.
3. changing method as claimed in claim 2 is characterized in that, the said transmission link that is based upon in the objective network is specially:
Set up with said access business network gateway between IP tunnel be connected.
4. changing method as claimed in claim 2 is characterized in that, the said transmission link that is based upon in the objective network is specially:
Set up with the WiMAX system in being connected between IP tunnel and said home agent services device and the said access business network gateway of home agent services device based on the proxy-mobile IP tunnel.
5. like claim 3 or 4 described changing methods, it is characterized in that said method also comprises:
Notify the successful connection of the said IP tunnel of said access business network gateway, and said IP address information is sent to said terminal through said access business network gateway, so that said terminal uses said IP address information to carry out the transmission of data service.
6. changing method as claimed in claim 1 is characterized in that, when when the WiMAX system switches to the 3GPP system, the message that target network transmission link is set up in said reception request is specially:
Receive the packet data protocol connection request message between the serving GPRS support node in foundation and the 3GPP system.
7. changing method as claimed in claim 6 is characterized in that, said method also comprises:
Notify the said packet data protocol of said serving GPRS support node to connect and successfully set up, and said IP address information is sent to said terminal through said serving GPRS support node, so that said terminal uses said IP address information to carry out the transmission of data service.
8. realize device for switching between WiMAX system and 3GPP system for one kind, it is characterized in that, comprising:
Receiving element is used for working as the process that terminal data service is switched between WiMAX system and 3GPP system, the message of target network transmission link is set up in the request of reception;
Acquiring unit is used for after learning that said receiving element receives that described request is set up the message of target network transmission link, obtains the terminal and has distributed the IP address information that obtains at source network;
Transmission link is set up the unit, is used for using the IP address information of said acquiring unit to be based upon the transmission link in the objective network, for the transmission of said terminal data service;
Before the message of target network transmission link was set up in receiving element reception request, said device also was used to receive the notice that comes from attaching position register; When learning that from said notice said terminal when source network switches to objective network, stops the downlink data of source network is sent to said terminal.
9. switching device shifter as claimed in claim 8 is characterized in that, when when the 3GPP system switches to the WiMAX system, said device also comprises:
First notification unit; Be used for after learning that said transmission link is set up the unit and set up said transmission link; The access business network gateway sends notice in the WiMAX system, with the successful connection of notice IP tunnel, and said IP address information is sent to said access business network gateway.
10. switching device shifter as claimed in claim 8 is characterized in that, when when the WiMAX system switches to the 3GPP system, said device also comprises:
Second notification unit; Be used for after learning that said transmission link is set up the unit and set up said transmission link; Serving GPRS support node sends notice in the 3GPP system, with the successful connection of notice packet data protocol, and said IP address information is sent to said serving GPRS support node.
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| CN2007103078722A CN101472308B (en) | 2007-12-29 | 2007-12-29 | Method and device for implementing switch between WiMAX system and 3GPP system |
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| CN2007103078722A CN101472308B (en) | 2007-12-29 | 2007-12-29 | Method and device for implementing switch between WiMAX system and 3GPP system |
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| CN101472308B true CN101472308B (en) | 2012-03-21 |
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| CN102546154B (en) * | 2011-12-19 | 2015-09-16 | 上海顶竹通讯技术有限公司 | The changing method of terminal in mobile communications network |
| CN104284383B (en) * | 2013-07-02 | 2018-01-30 | 电信科学技术研究院 | A kind of method and apparatus for keeping business continuance |
| CN109802980A (en) * | 2017-11-17 | 2019-05-24 | 华为技术有限公司 | Method for message interaction, relevant apparatus and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2007031389A1 (en) * | 2005-09-12 | 2007-03-22 | Siemens Aktiengesellschaft | Telecommunication system and method for controlling switching of a user terminal between two networks |
| CN101064718A (en) * | 2006-04-25 | 2007-10-31 | Sk电信有限公司 | Method and system for registering IP address in mobile internet network |
| CN101080090A (en) * | 2006-05-26 | 2007-11-28 | 株式会社日立制作所 | Method, system and device for network switching of mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007031389A1 (en) * | 2005-09-12 | 2007-03-22 | Siemens Aktiengesellschaft | Telecommunication system and method for controlling switching of a user terminal between two networks |
| CN101064718A (en) * | 2006-04-25 | 2007-10-31 | Sk电信有限公司 | Method and system for registering IP address in mobile internet network |
| CN101080090A (en) * | 2006-05-26 | 2007-11-28 | 株式会社日立制作所 | Method, system and device for network switching of mobile terminal |
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