CN101150865A - Terminal, network access method and system - Google Patents
Terminal, network access method and system Download PDFInfo
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- CN101150865A CN101150865A CNA2007101764135A CN200710176413A CN101150865A CN 101150865 A CN101150865 A CN 101150865A CN A2007101764135 A CNA2007101764135 A CN A2007101764135A CN 200710176413 A CN200710176413 A CN 200710176413A CN 101150865 A CN101150865 A CN 101150865A
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Abstract
The invention relates to a terminal, a network access method and a system. The terminal includes a testing module, an authentication module, a receiving and sending module. The system includes a call conversation controlling unit in the IMS network, a terminal which processes the IMS service through the access network and the IMS network. In the network access method, when the terminal is switched in different access networks, the terminal processed the IMS service through the safe union which is established by the access network and the IMS network. The invention shortens the time delay of the IMS user switching in different access networks, ensures the continuity of the IMS service, reduces the losing rate of the data when switching in different access networks, ensures the safety of the transmiting data.
Description
Technical field
The invention belongs to moving communicating field, relate in particular to a kind of terminal, method for network access and system.
Background technology
Along with the development of wireless mobile broadband access technology and multimedia service technology, wireless mobile broadband access technology merges with the multimedia service that transmits based on IP and becomes the communication system developing direction.The development of WiMAX access technology will provide wideer wireless access bandwidth for wireless mobile subscriber, the communication service information that carrying is abundant more; IP Multimedia System (IP Multimedia Subsystem; Hereinafter to be referred as: IMS) provide abundant communication traffic service for wireless mobile subscriber.The fusion of wireless mobile broadband access technology and IMS network will provide abundant wireless mobile service service for the user.
When mobile communication system (Universal MobileTelecommunications System is passed through in the mobile subscriber application terminal; Hereinafter to be referred as: UMTS) network insertion is carried out in the IMS business procedure to the IMS network, and authorizing procedure is: at first, finish UMTSAKA (being EAP-AKA) access authentication flow process between terminal and the UMTS network; Then, carry out the IMSAKA authorizing procedure between terminal and the IMS network again, finish the authentication between terminal and the IMS network.Similarly, when utilizing terminal, the mobile subscriber passes through micro-wave access global inter communication (Worldwide Interoperability forMicrowave Access; Hereinafter to be referred as: WiMAX) network insertion is carried out in the IMS business procedure to the IMS network, and authorizing procedure is: at first, finish EAP-AKA access authentication flow process between terminal and the WiMAX network; Then, carry out the IMS AKA authorizing procedure between terminal and the IMS again, finish the authentication between terminal and the IMS network.
Terminal is undertaken in the process of IMS business service by the UMTS access network, when terminal mobile roaming during to the WiMAX access network, only after the IMS AKA authorizing procedure between the EAP-AKA access authentication flow process between terminal and the WiMAX network and terminal and the IMS network is finished, could proceed to have carried out originally the IMS business by the WiMAX access network.Correspondingly, when the terminal of carrying out the IMS business during from WiMAX access network mobile roaming to the UMTS access network, only after the EAP-AKA access authentication flow process of terminal and UMTS network and the IMS AKA authorizing procedure between terminal and the IMS network are finished, could switch the IMS business smoothly.Terminal moves when switching at different Access Networks, to carry out authorizing procedure repeatedly between terminal and the IMS network, and the authorizing procedure of terminal and IMS network will cause handoff procedure bigger time-delay to occur, even the loss of data of transmission occur or cause service disconnection because of transmission delay.
Summary of the invention
The embodiment of the invention provides a kind of terminal, method for network access and system, in order to solve in the prior art terminal different Access Networks move switch after, the defective that occurs bigger time-delay when carrying out business with the IMS network has again strengthened the continuity of IMS business between terminal and the IMS network.
The embodiment of the invention provides a kind of method for network access, comprising:
Detect terminal when first Access Network enters second Access Network, carry out access authentication with described second Access Network;
After finishing access authentication, the identification information of the terminal that in the safety alliance information that the transmission of IMS calling network Session Control Unit is set up by described first Access Network and IMS network, comprises;
Receive the session confirmation that described IMS calling network Session Control Unit returns, carry out the IMS business by described second Access Network and IMS network according to described safety alliance information.
The embodiment of the invention also provides a kind of method for network access, comprising:
Receive the identification information that sends by second Access Network, described identification information is contained in the safety alliance information of setting up by first Access Network and IMS network;
According to described identification information, search corresponding safety alliance information;
Return the session confirmation, provide IMS business service according to described safety alliance information.
The embodiment of the invention provides a kind of terminal again, comprising:
Detection module is used for to terminal the access between first Access Network and second Access Network and switches and to detect;
Authentication module is used for detecting the testing result information that terminal inserts switching according to described detection module, carries out access authentication with described first Access Network;
Transceiver module, be used for after described authentication module and described first Access Network are finished access authentication, the identification information of the terminal that comprises in the safety alliance information that IMS calling network Session Control Unit transmission terminal is set up by first Access Network and IMS network receives the session confirmation that described IMS calling network Session Control Unit returns.
The embodiment of the invention provides a kind of network access system again, comprises calling conversation control unit that is arranged in the IMS network and the terminal of carrying out the IMS business by Access Network and IMS network;
Described terminal is used for from first Access Network to the second Access Network handoff procedure, after finishing access authentication with described second Access Network, send the identification information of the described terminal that comprises in the safety alliance information that described terminal sets up by described first Access Network and IMS network;
Described calling conversation control unit is used for the described identification information according to the described terminal transmission that receives, inquire about the safety alliance information of described identification information correspondence, and provide IMS business service by the IMS network for described terminal according to the described safety alliance information that finds.
The terminal that the embodiment of the invention provides, method for network access and system, shorten IMS user and between different Access Networks, carried out time delay for switching, ensure the continuity of IMS business, reduced the data loss rate when between different Access Networks, switching, guaranteed the safety of transmission data.
Description of drawings
Fig. 1 is the schematic flow sheet of method for network access embodiment of the present invention;
Fig. 2 is the schematic flow sheet of another method for network access of the present invention;
Fig. 3 is a terminal structure schematic diagram of the present invention;
Fig. 4 is network access system embodiment one structural representation of the present invention;
Fig. 5 is network insertion signaling process figure in the network access system of the present invention;
Fig. 6 is network access system embodiment two structural representations of the present invention;
Fig. 7 is network access system embodiment three structural representations of the present invention.
Embodiment
Further specify technical scheme of the present invention below in conjunction with the drawings and specific embodiments.
Method for network access embodiment
Fig. 1 as shown in Figure 1, comprises the steps: for the schematic flow sheet of method for network access embodiment of the present invention
The network insertion flow process that present embodiment switches between UMTS network and WIMAX network with terminal is an example, be that terminal is at first carried out the IMS business by UMTS network and IMS network, terminal moves in wireless network, self to be about to leave first Access Network be the coverage of UMTS network and when progressively entering second Access Network and being the WIMAX network, carry out the access authentication flow process with the WIMAX network when terminal detects; Carry out the access authentication method that access authentication can adopt persons skilled in the art to know between described terminal and the WIMAX network, for example " EAP-AKA " access authentication method.Terminal finish and the WIMAX network between EAP-AKA access authentication flow process after, terminal do not carry out immediately and the IMS network between authorizing procedure, but immediately the authentication entity in the IMS network be calling conversation control unit (hereinafter to be referred as: S-CSCF) send " SIPRegister " message, the identification information (IMPI information) that includes terminal in this message, request continue to prolong the Security Association of setting up by UMTS network and IMS network negotiate with terminal and carry out the IMS business; Terminal receives " SIP register Resp " message that S-CSCF returns, and expression S-CSCF allows to continue to prolong the Security Association of consulting with previous, and carries out the IMS business with the IMS network immediately.
Switch to the WIMAX network in terminal from the UMTS network, and by after WIMAX network and the IMS network successful connection IMS business, terminal also will be carried out authentication with the IMS network, promptly carry out the professional re-authentication of IMS, terminal by WIMAX network and IMS network consult again the safety alliance information that makes new advances, and carry out the IMS business based on the Security Association of new negotiation.The method for authenticating that the process of re-authentication can adopt persons skilled in the art to know, for example " IMS-AKA " access authentication method etc.
In the method for network access that present embodiment provides, when terminal is switched between different Access Networks, do not carry out re-authentication with the IMS network, but continue to prolong with terminal by last Access Network and the good safety alliance information of IMS network negotiate by request, make terminal after inserting new Access Network, full out continue the IMS business, reduced time-delay and loss of data that handoff procedure brings.
Another method for network access embodiment
Fig. 2 as shown in Figure 2, comprises the steps: for the schematic flow sheet of another method for network access of the present invention
S-CSCF in the IMS network receives after terminal is " SIP Register " message that includes terminal identification information of sending of WIMAX network by second Access Network, do not insert the re-authentication flow process with terminal, but in S-CSCF, inquire about the safety alliance information of described terminal identification information correspondence immediately, this safety alliance information is that terminal is the Security Association of UMTS network and IMS network negotiate by first Access Network, and is stored among the S-CSCF.After finding corresponding Security Association, return " SIP register Resp " message to terminal, notice terminal IMS network allows to continue to prolong with this Security Association to provide IMS business service for terminal, carries out immediately between IMS network and the terminal and switches the IMS business of coming.
Between UMTS network and WIMAX network in the handoff procedure, the Security Association that prolongs usefulness is that terminal is carried out before Access Network switches in terminal, by UMTS network and the foundation of IMS network negotiate, be used to carry out IMS service security alliance.
The embodiment of the invention has been enumerated the implementing procedure when IMS user is switched from the UMTS Access Network to the WiMAX Access Network, the method for authenticating that the present invention relates to is equally applicable to IMS user switches to the MUTS Access Network from the WiMAX Access Network flow process, and be applicable to that IMS user is at the WIMAX network, the UMTS network, the EVDO network, TD-SCDNA network, CDMA2000 network, the GSM network, the IMS operation flow of switching between the GPRS network.
When the embodiment of the invention is switched between different Access Networks by terminal, the terminal identification information that the network based terminal of IMS sends is searched and is prolonged with the Security Association of terminal by last Access Network and the foundation of IMS network negotiate, continue the IMS business in the short period of time, reduced time-delay and loss of data that handoff procedure brings.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Terminal embodiment
Fig. 3 is a terminal structure schematic diagram of the present invention, and as shown in Figure 3, terminal comprises detection module 1, is used for to terminal the access between first Access Network and second Access Network and switches and to detect; Authentication module 2 is used for detecting the testing result information that terminal inserts switching according to detection module 1, carries out access authentication with described first Access Network; Transceiver module 3, be used for after authentication module 2 and described first Access Network are finished access authentication, the identification information of the terminal that comprises in the safety alliance information that IMS calling network Session Control Unit transmission terminal is set up by first Access Network and IMS network receives the session confirmation that described IMS calling network Session Control Unit returns.
Terminal is carried out access authentication by authentication module 2 and Access Network and IMS network, after the authentication success, by carrying out the IMS business between Access Network and the IMS network.When terminal is roamed in wireless network, detection module 1 is by the power of detection with the signal of communication of Access Network, detect the coverage that terminal is about to leave present residing Access Network, and when progressively entering into another Access Network, testing result information is sent to authentication module 2; After authentication module 2 receives this signal, carry out and new Access Network between the access authentication flow process; After terminal successfully inserts new Access Network, send " SIP Register " message that only includes terminal identification information by transceiver module 3 to IMS network authentication entity S-CSCF immediately, and wait-for-response information; After transceiver module 3 receives response message, continue the IMS business of originally carrying out immediately.
After terminal is by new Access Network and IMS network successful connection IMS business, carry out the re-authentication flow process by authentication module 2 and IMS network again.Terminal can also comprise first memory module 4, is connected with transceiver module 3, is used for the safety alliance information of storage terminal by consulting between original Access Network and the IMS network to set up.After authentication module 2 was finished access authentication with new Access Network, transceiver module 3 was searched the terminal identification information that comprises in the described safety alliance information in first memory module 4.
The terminal that the embodiment of the invention provides can carried out Access Network when switching, and prolongs with the previous Security Association of the consulting IMS business that directly continues by request, has reduced time-delay and loss of data that handoff procedure brings.
Network access system embodiment one
Fig. 4 is network access system embodiment one structural representation of the present invention, and as shown in Figure 4, system comprises the calling conversation control unit 10 that is arranged in the IMS network, carries out the terminal 20 of IMS business by Access Network and IMS network; Terminal 20 is used for from first Access Network to the second Access Network handoff procedure, finish access authentication with described second Access Network after, send the identification information of the terminal 20 that comprises in the safety alliance information of terminal 20 by described first Access Network and the foundation of IMS network; Calling conversation control unit 10 is used for the described identification information according to the terminal transmission that receives, inquire about the safety alliance information of described identification information correspondence, and provide IMS business service by the IMS network for terminal 20 according to the described safety alliance information that finds.
In the network access system, in the handoff procedure of terminal 20 between different Access Networks, behind the authorizing procedure of finishing with new Access Network, do not carry out re-authentication with the IMS network immediately, but the authentication entity S-CSCF in the IMS network is the identification information that calling conversation control unit 10 sends terminal 20, request call Session Control Unit 10 prolongs with the previous Security Association IMS business that continues, calling conversation control unit 10 provides IMS business service for terminal 20 immediately according to the Security Association that finds after receiving the identification information of terminal 20 transmissions.
In actual applications, terminal is carried out Access Network when switching in the network access system, and the signaling process that carries out network insertion between the IMS network is specifically as shown in Figure 5:
Step a, terminal is carried out the IMS business by UMTS Access Network and IMS network;
Step b, terminal moves from the UMTS Access Network carries out the WIMAX Access Network, carries out the access authentication flow process with the WIMAX Access Network;
Step c, after terminal was finished and carried out the access authentication flow process with the WIMAX Access Network, the authentication entity S-CSCF in the IMS network sent " SIP Register " message that only carries terminal identification information immediately;
Steps d, S-CSCF searches the safety alliance information of terminal identification information correspondence;
Step e returns " SIP register Resp " message to terminal after finding immediately;
Step f, terminal is proceeded the IMS business by WIMAX network and IMS network after receiving the SIP register Resp message that S-CSCF returns immediately.
Network access system embodiment two
Fig. 6 is network access system embodiment two structural representations of the present invention, and as shown in Figure 6, system comprises the calling conversation control unit 10 that is arranged in the IMS network, carries out the terminal 20 of IMS business by Access Network and IMS network; Terminal 20 is used for from first Access Network to the second Access Network handoff procedure, finish access authentication with described second Access Network after, send the identification information of the terminal 20 that comprises in the safety alliance information of terminal 20 by described first Access Network and the foundation of IMS network; Calling conversation control unit 10 is used for the described identification information according to the terminal transmission that receives, inquire about the safety alliance information of described identification information correspondence, and provide IMS business service by the IMS network for terminal 20 according to the described safety alliance information that finds.
Further, terminal 20 comprises detection module 1, is used for to terminal 20 access between first Access Network and second Access Network and switches and to detect; Authentication module 2 is used for detecting the testing result information that terminal 20 inserts switching according to detection module 1, carries out access authentication with described first Access Network; Transceiver module 3, be used for after authentication module 2 and described first Access Network are finished access authentication, the identification information of the terminal 20 that comprises in the safety alliance information that IMS calling network Session Control Unit transmission terminal 20 is set up by first Access Network and IMS network receives the session confirmation that described IMS calling network Session Control Unit 10 returns.
After terminal 20 is by new Access Network and IMS network successful connection IMS business, carry out the re-authentication flow process by authentication module 2 and IMS network again.Terminal 20 can also comprise first memory module 4, is connected with transceiver module 3, is used for the safety alliance information of storage terminal 20 by consulting between original Access Network and the IMS network to set up.After authentication module 2 was finished access authentication with new Access Network, transceiver module 3 was searched terminal 20 identification informations that comprise in the described safety alliance information in first memory module 4.
Network access system embodiment three
Fig. 7 is network access system embodiment three structural representations of the present invention, and as shown in Figure 7, system comprises the calling conversation control unit 10 that is arranged in the IMS network, carries out the terminal 20 of IMS business by Access Network and IMS network; Terminal 20 is used for from first Access Network to the second Access Network handoff procedure, finish access authentication with described second Access Network after, send the identification information of the terminal 20 that comprises in the safety alliance information of terminal 20 by described first Access Network and the foundation of IMS network; Calling conversation control unit 10 is used for the described identification information according to the terminal transmission that receives, inquire about the safety alliance information of described identification information correspondence, and provide IMS business service by the IMS network for terminal 20 according to the described safety alliance information that finds.
Further, calling conversation control unit 10 comprises receiver module 5, is used for the identification information that receiving terminal 20 sends; Enquiry module 6 is used for searching corresponding safety alliance information according to the described identification information that receiver module 5 receives; Sending module 7 is used for the described safety alliance information that enquiry module 6 finds is sent to described terminal 20.
After the receiver module in the calling conversation control unit 10 5 receives " SIP Register " message of the identification information that only carries terminal 20 that terminal 20 sends, this information is sent to enquiry module 6; Enquiry module 6 is searched corresponding safety alliance information according to described identification information in calling conversation control unit 10, after finding corresponding Security Association, send i.e. " the SIP register Resp " message of session confirmation by sending module 7 to terminal 20, expression allows to prolong between terminal 20 and the IMS network uses the safety alliance information of being searched, and exists side by side to be terminal 20 IMS is provided business service.The safety alliance information that enquiry module 6 is searched is the Security Association that terminal 20 is set up by previous Access Network and IMS network negotiate, calling conversation control unit 10 can also comprise second memory module 8, be connected with enquiry module 6, be used to store described safety alliance information, enquiry module 6 can directly be searched required safety alliance information in second memory module 8.
The concrete structure of the calling conversation control unit 10 in the present embodiment is formed and also can be applied among the embodiment that Fig. 4 and Fig. 6 represent.The network access system that the embodiment of the invention provides can carry out Access Network when switching in terminal, by prolonging with the previous Security Association of the consulting IMS business that directly continues, reduces time-delay and loss of data that handoff procedure brings.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (12)
1. a method for network access is characterized in that, comprising:
Detect terminal when first Access Network enters second Access Network, carry out access authentication with described second Access Network;
After finishing access authentication, the identification information of the terminal that in the safety alliance information that the transmission of IMS calling network Session Control Unit is set up by described first Access Network and IMS network, comprises;
Receive the session confirmation that described IMS calling network Session Control Unit returns, carry out the IMS business by described second Access Network and IMS network according to described safety alliance information.
2. method for network access according to claim 1 is characterized in that, described and described second Access Network carries out also comprising before the access authentication: set up described safety alliance information by described first Access Network and IMS network.
3. method for network access according to claim 1 and 2, it is characterized in that, the session confirmation that the described IMS calling network of described reception Session Control Unit returns is undertaken also comprising after the IMS business by described second Access Network and IMS network according to described safety alliance information: carry out authentication by described second Access Network and IMS network.
4. a method for network access is characterized in that, comprising:
Receive the identification information that sends by second Access Network, described identification information is contained in the safety alliance information of setting up by first Access Network and IMS network;
According to described identification information, search corresponding safety alliance information;
Return the session confirmation, provide IMS business service according to described safety alliance information.
5. method for network access according to claim 4 is characterized in that, described reception also comprises by the identification information that second Access Network sends before: set up described Security Association by described first Access Network.
6. a terminal is characterized in that, comprising:
Detection module is used for to terminal the access between first Access Network and second Access Network and switches and to detect;
Authentication module is used for detecting the testing result information that terminal inserts switching according to described detection module, carries out access authentication with described first Access Network;
Transceiver module, be used for after described authentication module and described first Access Network are finished access authentication, the identification information of the terminal that comprises in the safety alliance information that IMS calling network Session Control Unit transmission terminal is set up by first Access Network and IMS network receives the session confirmation that described IMS calling network Session Control Unit returns.
7. terminal according to claim 6 is characterized in that, also comprises: first memory module, be connected with described transceiver module, and be used for the described safety alliance information that storage package contains described identification information.
8. a network access system is characterized in that, comprising: be arranged in the calling conversation control unit of IMS network and carry out the terminal of IMS business by Access Network and IMS network;
Described terminal is used for from first Access Network to the second Access Network handoff procedure, after finishing access authentication with described second Access Network, send the identification information of the described terminal that comprises in the safety alliance information that described terminal sets up by described first Access Network and IMS network;
Described calling conversation control unit is used for the described identification information according to the described terminal transmission that receives, inquire about the safety alliance information of described identification information correspondence, and provide IMS business service by the IMS network for described terminal according to the described safety alliance information that finds.
9. network access system according to claim 8 is characterized in that, described terminal comprises:
Detection module is used for to terminal the access between first Access Network and second Access Network and switches and to detect;
Authentication module is used for detecting the testing result information that terminal inserts switching according to described detection module, carries out access authentication with described first Access Network;
Transceiver module, be used for after described authentication module and described first Access Network are finished access authentication, the identification information of the terminal that comprises in the safety alliance information that IMS calling network Session Control Unit transmission terminal is set up by first Access Network and IMS network receives the session confirmation that described IMS calling network Session Control Unit returns.
10. network access system according to claim 9 is characterized in that, described terminal also comprises: first memory module, be connected with described transceiver module, and be used for the described safety alliance information that storage package contains described identification information.
11. network access system according to claim 8 is characterized in that, described calling conversation control unit comprises:
Receiver module is used to receive the described identification information that described terminal sends;
Enquiry module is used for searching corresponding safety alliance information according to the described identification information that described receiver module receives;
Sending module is used for the described safety alliance information that described enquiry module finds is sent to described terminal.
12. network access system according to claim 11 is characterized in that, described calling conversation control unit also comprises: second memory module, be connected with described enquiry module, and be used to store described safety alliance information.
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|---|---|---|---|
| CN200710176413A CN100584099C (en) | 2007-10-26 | 2007-10-26 | Terminal, network access method and system |
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|---|---|---|---|
| CN200710176413A CN100584099C (en) | 2007-10-26 | 2007-10-26 | Terminal, network access method and system |
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| CN101150865A true CN101150865A (en) | 2008-03-26 |
| CN100584099C CN100584099C (en) | 2010-01-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101730171B (en) * | 2009-05-27 | 2013-01-16 | 中兴通讯股份有限公司 | Switching control method and switching control system |
| CN104168278A (en) * | 2014-08-15 | 2014-11-26 | 中国联合网络通信集团有限公司 | IMS intra-domain voice service switching method, device and system |
-
2007
- 2007-10-26 CN CN200710176413A patent/CN100584099C/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101730171B (en) * | 2009-05-27 | 2013-01-16 | 中兴通讯股份有限公司 | Switching control method and switching control system |
| CN104168278A (en) * | 2014-08-15 | 2014-11-26 | 中国联合网络通信集团有限公司 | IMS intra-domain voice service switching method, device and system |
Also Published As
| Publication number | Publication date |
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| CN100584099C (en) | 2010-01-20 |
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