CN101867902A - Network capable of realizing international roaming and method for managing roaming terminal - Google Patents
Network capable of realizing international roaming and method for managing roaming terminal Download PDFInfo
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Abstract
The invention provides a network capable of realizing international roaming, which comprises a home mobile core network, an internet and an international roaming gateway arranged between the home mobile core network and the internet. A roaming terminal accesses the internet through a local network of a roaming place and further accesses the home mobile core network through the international roaming gateway by the internet so as to realize the international roaming function of the terminal. The network has the advantages that: the international roaming gateway is arranged between the internet and the mobile core network, and the position information of a roaming user is registered to a home mobile communication network through an IP network to complete international roaming service access and call connection with the home communication network, so that the network can realize international roaming such as basic voice call services, supplementary services, short message services and packet services, has a few small changes to the conventional network, and does not cause extra load to the mobile network of the roaming place.
Description
[technical field]
The present invention relates to communication technical field, relate in particular to a kind of network that can realize international roaming and the management method of roaming terminal.
[background technology]
The existing techniques in realizing international roaming service generally is based on the mobile communications network interconnection of home and overseas, the user uses local mobile communications network to initiate caller in the roaming country, by the roaming place mobile communications network with call proceeding to domestic communication network, perhaps the roamer when called, calling and called are continued by external mobile communications network by domestic communication network.
Another kind of solution is to adopt voip technology, initiate audio call by the roaming place user by SIP signaling IP based network (particularly INTERNET), the SIP signaling when finishing audio call and the conversion of mobile communication signaling and Media Stream by voip gateway, and warp is fixing or mobile communications network arrives fixing or portable terminal with call proceeding.A kind of typical application is exactly the Skype phone.The major defect of above-mentioned technology is VoIP such as Skype phone and domestic move or fixed-line telephone network belongs to the different operators operation, and Subscriber Number can't be accomplished unified, can not realize unified charging.Also can only realize the international call of voice based on the Skype mode, can not solve the international roaming of value-added services such as short message, can not realize the international roaming of packet switch domain service.And can finish interconnecting of voice class business with mobile core network at present, and can realize that again packet switch domain service inserts, the IP gateway equipment that the realization jack per line is unified billing function yet there are no application case.
In order to reach the international roaming expense of saving, attract the user to use the target of international roaming service, some operator has released international roaming caller callback service.This technology realizes based on the USSD technology.When the user initiates audio call in the country of roaming, before called number, add the feature prefix.Call signaling is connected called number earlier by ownership place operator after resolving through the USSD center of ownership place operator, and user waiting prompt, calls out calling number again by the ownership place mobile switch then, thereby finishes the talking connection between calling and called.The caller reality that is to say the roaming place user has been converted into called in handshaking procedure.According to the roaming agreement of being signed between operator, this continuation method can reduce the international roaming expense to a certain extent.But this mode is owing to need take the local mobile communications network resource in international roaming ground, and rate need and external local operator settles accounts, and the international roaming rate are still very high.The prerequisite that this technology is used is must be deployed with related mobile communication network and equipment in the residing roaming of user country, and with domestic operator's signature roaming agreement be arranged.
[summary of the invention]
Technical problem to be solved by this invention is, a kind of network and roaming management method thereof that can realize international roaming is provided, the network architecture scheme that is provided is little to the change of existing network, do not take too much Internet resources, reduce technical costs, realize all professional international roaming, promote operator to promote the international roaming service.
In order to address the above problem, the invention provides a kind of network that can realize international roaming, the mobile core network and the Internet that comprise the local, also comprise the international roaming gateway, described international roaming gateway is arranged between local mobile core network and the Internet, roaming terminal inserts Internet by the local network of roaming place, and further inserts the mobile core network in local via Internet by the international roaming gateway, thereby realizes the international roaming function of terminal.
As optional technical scheme, described international roaming gateway to mate corresponding mobile core network interface type, is realized the services of roaming of respective type with one or more network element butt joints of the mobile core network in local.
As optional technical scheme, further comprise the roaming place proxy gateway, described roaming place proxy gateway is arranged between local area network and the Internet.
As optional technical scheme, described international roaming gateway further is furnished with mapping table, and described mapping table has been stored the mapping relations between position area information sign indicating number and the IP address field, is used to realize the charging policy of international roaming service.
As optional technical scheme, further comprise service server, the mobile core network in described service server and local links to each other, and is used to realize the international roaming of packet switch domain service.
The present invention also provides a kind of method that roaming terminal in the above-mentioned network is managed, and comprises the steps: that roaming terminal passes through the local network access Internet of roaming place and obtains the IP address; Roaming terminal obtains the IP address of roaming place international roaming gateway; Roaming terminal is registered on the international roaming gateway of roaming place, and registers or location registers on the mobile core network in local by this international roaming gateway; Set up data link as caller or called roaming terminal by the mobile core network in international roaming gateway and local, and further set up data route or call proceeding as called or calling terminal with the business network or the opposite side of being visited, to realize the communication service of roaming terminal and other-end and business network.
As optional technical scheme, in the step of the communication service that realizes roaming terminal and other-end, when roaming terminal during, comprise the steps: that further roaming terminal sets up communication link to make a call business and international roaming gateway of international roaming gateway as the calling subscriber; Set up call link between the mobile core network in international roaming gateway and local, directly service message is routed to the purpose reference address, perhaps the mobile core network in local is established to the call link of terminal called, and calling and called is finished calling switch through.
As optional technical scheme, in the step of the communication service that realizes roaming terminal and other-end, when roaming terminal during as the called subscriber, the mobile core network that further comprises the steps: to be in the calling terminal of any position instruction that makes a call to the local; After the mobile core network in local is received paging instructions, initiate service paging to the international roaming gateway; The international roaming gateway is sent to roaming terminal with service paging; Roaming terminal returns page response, is sent to the international roaming gateway; The international roaming gateway sends it back page response the mobile core network in local; Roaming terminal and international roaming gateway are set up call link, and the international roaming gateway is established to the call link of the mobile core network in local; Set up call link between the mobile core network in calling terminal and local.
As optional technical scheme, roaming terminal obtains in the step of IP address of international roaming gateway, the IP address that roaming terminal obtains the international roaming gateway by dns resolution, perhaps the IP address that obtains the international roaming gateway by the configuration information that reads in firmware that roaming terminal is joined or the corresponding software.
As optional technical scheme, described method further comprises the steps: when the international roaming gateway is received the calling of terminal initiation, judges whether terminal called and calling terminal are all registered or the location registers mistake on same international roaming gateway; If confirm all registeredly, then directly finish call proceeding by the international roaming gateway, do not need again to continue through the mobile core network transfer in local; If there is a side still unregistered, the mobile core network that then reports to the local carries out follow-up switching through.
As optional technical scheme, further comprise the roaming place proxy gateway that is arranged between local area network and the Internet in the residing network of terminal, roaming terminal is connected to Internet by the roaming place proxy gateway, described in the case method further comprises the steps: when the roaming place proxy gateway is received the calling of terminal initiation, judges whether terminal called and calling terminal are all registered or the location registers mistake on the proxy gateway of same roaming place; If confirm all registeredly, then directly finish call proceeding by the roaming place proxy gateway, do not need again to continue through the mobile core network transfer in international roaming gateway and local; If there is a side still unregistered, the mobile core network that then reports to international roaming gateway and local carries out follow-up switching through.
The invention has the advantages that by between the Internet and mobile core network, disposing the international roaming gateway, roamer's positional information is registered to domestic mobile communications network via IP network, finish that international roaming service inserts and and the call proceeding of home communications network, can realize the international roaming of basic voice call, supplementary service, note and Packet Service, and it is little to the change of existing network, bring extra duty can for the roaming place mobile network, thereby solve the problem and shortage that various international roaming technology exist in the existing application.The present invention also realizes unified accounting managements and further reduces load pressures to core net by technology such as mapping table and roaming place proxy gateway further are set.
[description of drawings]
Accompanying drawing 1 and accompanying drawing 2 are the network of network structural representations that can realize international roaming in the specific embodiment of the present invention;
Accompanying drawing 3, accompanying drawing 4A and accompanying drawing 4B adopt the flow chart of the described network architecture of the specific embodiment of the invention to roaming terminal management method execution mode;
Accompanying drawing 5 is 3GPP international roaming networking diagrams of the present invention embodiment under the real network framework;
Accompanying drawing 6 is 3GPP2 international roaming networking diagrams of the present invention embodiment under the real network framework;
Accompanying drawing 7 be the present invention under the real network framework embodiment have a roaming place proxy gateway networking diagram;
Accompanying drawing 8 is authentication registration flow charts of the present invention embodiment under the actual 3GPP network architecture;
Accompanying drawing 9 is voice call flow charts of the present invention embodiment under the actual 3GPP network architecture with accompanying drawing 10
The receiving short message flow chart of accompanying drawing 11 and accompanying drawing 12 the present invention embodiment under the actual 3GPP network architecture;
Accompanying drawing 13 is that the Packet Service of the present invention embodiment under the actual 3GPP network architecture is set up flow chart;
Accompanying drawing 14 is authentication registration flow charts of the present invention embodiment under the actual 3GPP2 network architecture;
Accompanying drawing 15 is voice call flow charts of the present invention embodiment under the actual 3GPP2 network architecture with accompanying drawing 16
The receiving short message flow chart of accompanying drawing 17 and accompanying drawing 18 the present invention embodiment under the actual 3GPP2 network architecture;
Accompanying drawing 19 is that the Packet Service of the present invention embodiment under the actual 3GPP2 network architecture is set up flow chart.
[embodiment]
Next make a detailed description to a kind of network that can realize international roaming of the present invention and to the embodiment of the management method of roaming terminal in conjunction with the accompanying drawings.
It shown in the accompanying drawing 1 the network of network structural representation that can realize international roaming in this embodiment, the mobile core network 11, Internet (INTERNET) 12, international roaming gateway 13, service server 17 and the user terminal that comprise the local, accompanying drawing 1 is with terminal 15 and 16 expressions, wherein terminal 15 is in roaming state, and terminal 16 is among the home network.
Described international roaming gateway 13 is arranged between the mobile core network 11 and Internet 12 in local, roaming terminal 15 inserts Internet 12 by the local network (not shown) of roaming place, and further insert the mobile core network 11 in locals, thereby realize the international roaming function of terminal by international roaming gateway 13.
Described international roaming gateway 13 is finished international roaming user's access authentication with a plurality of network element butt joints of the mobile core network 11 in local, finishes the conversion of the signaling and the media stream formats of user side signaling and media stream formats and core-network side.
The mobile core network 11 in described service server 17 and local links to each other, and is used for further realizing the international roaming of packet switch domain service.If for example terminal 15 thinks to check abroad domestic multimedia message of sending, then need to sign in to service server 17 and go to check by local core net 11.
For example in the 3GPP network, international roaming gateway 13 links to each other with GGSN (gateway GPRS service node) network element, is used for realizing the international roaming of packet switch domain service at the 3GPP network; Link to each other with the AAA network element, realize the authentication when the Packet Service roaming inserts; Link to each other with MSC/VLR (mobile switching center) network element of GSM core net, be used to realize the access and the international roaming of circuit domain business such as GSM voice and note; Link to each other with MSC Server/MGW (Mobile Switching Center Server/media gateway) network element of 3G core net, be used to realize the access and the international roaming of circuit domain business such as the voice of 3G and note.Respectively by above connection to mate corresponding mobile core network interface type, realize the services of roaming of respective type.
In the 3GPP2 network, international roaming gateway 13 links to each other with PDSN (packet data serving node) network element, is used for realizing the international roaming of Packet Service at the 3GPP2 network; Link to each other with ANAAA (Access Network aaa server) network element, realize the authentication when the grouping services of roaming insert; Link to each other by the IP interface with the MSCe/MGW equipment of packet switching, be used to realize the access and the international roaming of circuit domain business such as the voice of CDMA and note; Link to each other by arrowband E1 or T1 interface with Circuit-switched MSC equipment, be used to realize the access and the international roaming of circuit domain business such as the voice of CDMA and note.
Be another embodiment of the present invention shown in the accompanying drawing 2, in this execution mode, further comprise roaming place proxy gateway 19, described roaming place proxy gateway 19 is arranged between local area network 18 and the Internet 12.Described local area network 18 can be wireless lan (wlan) or cable LAN.
In above-mentioned two execution modes, international roaming gateway 13 further is furnished with mapping table, and described mapping table has been stored the mapping relations between position area information sign indicating number and the IP address field, is used to realize the charging policy of international roaming service.When international roaming gateway 13 is finished the registration of terminal 15 or location registers, obtain the position area information sign indicating number in user the country one belongs to or area according to the source IP address inquiry of terminal 15, and the position area information sign indicating number is sent to the mobile core network 11 in local.The mobile core network 11 in local can identify the country at terminal 15 places according to this position area information sign indicating number, thereby realizes corresponding charging policy, as different rate standards etc.
Accompanying drawing 3 is to adopt the accompanying drawing 1 described network architecture roaming terminal management method at first to be needed the terminal registration flow process of implementing in implementation process, terminal 15 is to be in roaming state, and terminal 16 is among the home network, and roaming terminal 15 is as calling terminal, and terminal 16 is as terminal called.Described enrollment process comprises the steps: step S300, and roaming terminal 15 inserts Internet 12 and distributing IP address by the local network of roaming place.
Step S310, roaming terminal 15 obtains the IP address of roaming place international roaming gateway 13, in this step, roaming terminal 15 can obtain the IP address of international roaming gateway 13 by the mode of dns resolution, perhaps by the IP address that the configuration information in firmware or the corresponding software obtains international roaming gateway 13 that reading terminals 15 is joined.
Step S320, roaming terminal 15 are registered on the international roaming gateway 13 of roaming place, and register or location registers on the mobile core network 11 in local by this international roaming gateway 13.
After above-mentioned steps was finished, terminal promptly can realize intercommunication mutually with other terminal such as terminal 16 or service server 17 by local full roaming network, international roaming gateway 13.
Below the management method of roaming terminal is narrated as caller and called two kinds of situations with terminal respectively.
Shown in the accompanying drawing 4A be roaming terminal 15 as calling terminal, terminal 16, continues to comprise as the management method schematic diagram under the situation of terminal called after accompanying drawing 3 described steps:
Step S331, roaming terminal 15 is set up communication link as calling terminal to make a call business and international roaming gateway 13 of international roaming gateway 13.
Step S332,11 of the mobile core networks in international roaming gateway 13 and local are set up call link, directly service message is routed to the purpose reference address, perhaps the mobile core network 11 in local is established to the call link of terminal called 16, and calling and called is finished calling switch through.
If a kind of mode in back is adopted in speech business usually; And in the network 17 that has service server, packet switch domain service can be taked preceding a kind of mode.
Shown in the accompanying drawing 4B be roaming terminal 15 as terminal called, terminal 16, continues to comprise as the management method schematic diagram under the situation of calling terminal after accompanying drawing 3 described steps:
Step S331 ', home terminal 16 is as the instruction that makes a call of the mobile core network 11 to the local of calling terminal, the terminal of sending call instruction in this step not only can be the terminal that is in the local mobile core network 11, it also can be the terminal that is under the roaming state, if calling terminal also is in roaming state, its method that makes a call to the local mobile core network is the content described in the 3 pairing execution modes with reference to the accompanying drawings.
Here it is pointed out that step S300, S310, S320 are the prerequisite of S331 ' access success, if roaming terminal 15 does not register on the core net of local before, then the calling of S331 ' can be not successful.Therefore, in actual call, do not have strict sequential relationship between S331 ' and S300, S310 and the S320.
Step S332 ' after the mobile core network 11 in local is received paging instructions, initiates service paging to international roaming gateway 13.
Step S333 ', international roaming gateway 13 is sent to called roaming terminal 15 with service paging.
Step S334 ', roaming terminal 15 returns page response, is sent to international roaming gateway 13.
Step S335 ', international roaming gateway 13 send it back page response the mobile core network 11 in local.
Step S336 ', roaming terminal 15 and international roaming gateway 13 are set up call link, and international roaming gateway 13 is established to the call link of mobile core 11 nets in local.
Step S337 ' sets up call link between the mobile core network 13 in calling terminal 16 and local.
Above step has promptly been finished continuing between the calling and called after implementing to finish.
It is pointed out that in actual call also there is not strict sequential relationship between step S336 ' and the S337 '.
The mobile core network 11 in international roaming gateway 13 and local is finished the foundation of bearing link, thereby calling and called service is continued, the mobile core network 11 optional initiation authentication processes in the middle local of above-mentioned steps S336 '.
In the above step, when international roaming gateway 13 is received the calling of terminal 15 or 16 initiations, judge whether itself and terminal called 16 or 15 are all registered or the location registers mistake on same international roaming gateway 13.If confirm all registeredly, then directly finish call proceeding by international roaming gateway 13, do not need again to continue through mobile core network 11 transfers in local, if there is a side still unregistered, the mobile core network that then reports to the local advances follow-up the switching through of 11 row.Can reduce the network load of local mobile core network 11 like this, therefore can be used as a kind of optional embodiment according to the practical application needs.
The network architecture has as shown in Figure 2 further comprised the roaming place proxy gateway 19 that is arranged between local area network 18 and the Internet 12 in the terminal 15 residing networks.In the case, roaming terminal 15 can be connected to Internet 12 by roaming place proxy gateway 19.
Under the situation of having used roaming place proxy gateway 19, when the roaming place proxy gateway is received the calling of terminal initiation, judge whether terminal called and calling terminal are all registered or the location registers mistake on the proxy gateway of same roaming place.If confirm all registered, then directly finish call proceeding by the roaming place proxy gateway, do not need the mobile core network transfer in process international roaming gateway and local to continue, if there is a side still unregistered, the mobile core network that then reports to international roaming gateway and local carries out follow-up switching through again.
The advantage of this setting is that all roaming terminals that the roaming place proxy gateway can compile in a certain zone carry out unified management, no longer pass through international roaming gateway and the transfer of home communications network, to reduce service tariff, reduce professional propagation delay time, promote quality of service, be particularly useful for enterprise in overseas branch.
Next use in conjunction with real network and provide some embodiments of the present invention.
Standard specification definition for 3GPP2 and RFC in this area all adopts English the description, for the normalized definition that makes following narration and standard adapts, therefore the description to interacting message all is the English narration of having quoted in the standard specification definition of corresponding 3GPP2 and RFC in following narration and the accompanying drawing, and has provided explanation in Chinese.
Terminal can adopt the SIP signaling to be accomplished to the access procedure of international roaming gateway, also can adopt the signaling format of other International Standards Organization's definition.Signaling between international roaming gateway and the core net and medium face interface are obedient to 3GPP and 3GPP2 international norm.
Below provide the network architecture of the present invention, and the main execution mode that adopts the described network architecture that roaming terminal is managed.
Being 3GPP international roaming networking diagram shown in the accompanying drawing 5, then is 3GPP2 international roaming networking diagram shown in the accompanying drawing 6, is to have roaming place proxy gateway networking diagram shown in the accompanying drawing 7.Can image from figure find out relation between each network element under the real network framework.
Adopt the main business process of above-mentioned network architecture management roaming terminal as follows:
One, roaming gateway discovery procedure
1. terminal is obtained the IP address of IP address and dns server in the country, roaming place;
One of 2. terminal is obtained the IP address of roaming gateway, can be in the following way:
Go out the pairing IP of the domain name address of international roaming gateway to the dns server request analysis;
Obtain the IP address of the international roaming gateway or the roaming place proxy gateway of configuration;
Two, insert the international roaming of 3GPP core net
1. registration and verification process please refer to the content shown in the accompanying drawing 8.
Terminal is after obtaining the IP address of international roaming gateway, initiate the SIP registration to the international roaming gateway, the international roaming gateway is received the back to core net MSC that is connected or MSC Server initiation position updating request, and transmits authentication message and authentication parameter between core net and the terminal.After authentication was passed through, core net was upgraded to international roaming gateway home position and is accepted, and the international roaming gateway returns registration to terminal and accepts.It is online that terminal successfully registers to mobile core.
2. the audio call process please refer to the content shown in accompanying drawing 9 and 10.
With reference to the accompanying drawings 9, calling procedure for the audio call process: after terminal is finished registration process, to the request of making a call of international roaming gateway, the international roaming gateway is initiated service request to mobile core network MSC or MSC Server network element, and finishes bearing link with mobile core network and set up.The international roaming gateway sends ALERTING message to terminal.After called subscriber's call accepted, core net notifying power internet roaming gateway, international roaming gateway send to call out to terminal accepts message, and terminal is returned the calling acknowledge message.Service link is got through between calling and called, can carry out voice call.
With reference to the accompanying drawings 10, be the called flow of audio call process: the mobile core network calling called subscriber sends the paging request to the international roaming gateway.The international roaming gateway sends Options message to terminal, and after terminal was returned 200OK, the international roaming gateway returned to mobile core network and pages reply.The optional initiation authentication process of mobile core network.Follow-up bearing link foundation and speech connection classes of messages are like calling procedure.
3. the short message transport process please refer to the content shown in accompanying drawing 11 and 12.
With reference to the accompanying drawings 11, short message calling procedure for the short message calling procedure: after terminal is accomplished to the registration of international roaming gateway, terminal is sent short message by SIP Message method, after receiving, the international roaming gateway sends service request to mobile core network, the optional initiation authentication process of core net, mobile core network return service request and accept.After short message successfully was delivered to sms center, mobile core network sent 200 OK to the international roaming gateway, and the indication short message is delivered successfully.
With reference to the accompanying drawings 12, be the short message called flow of short message calling procedure: after core net is received calling subscriber's short message request, initiate paging to the international roaming gateway.The international roaming gateway sends Options message to terminal called, and terminal called returns 200OK.The optional initiation authentication process of mobile core network.The short message of exhaling follow-up end can be delivered to terminal called via the international roaming gateway.
4. Packet Service is set up process, please refer to the content shown in the accompanying drawing 13.
After terminal is accomplished to the registration of international roaming gateway, send the packet call request to the international roaming gateway.The international roaming gateway is initiated service request to mobile core network, the optional initiation authentication process of mobile core network, and core net is returned professional acceptance to the international roaming gateway.International roaming gateway and core net are finished the context activation process, set up bearing link after, return to terminal and call out to accept, terminal is returned the calling acknowledge message.
Three, insert the international roaming of 3GPP2 core net
1. registration and verification process please refer to the content shown in the accompanying drawing 14.
After terminal obtains the IP address of international roaming gateway, initiate registration to the international roaming gateway.International roaming gateway and mobile core network are mutual, finish user's authentication and position updating process.
2. the audio call process please refer to the content shown in accompanying drawing 15 and 16.
With reference to the accompanying drawings 15, be the voice caller of audio call process: after terminal obtains the IP address of international roaming gateway, initiate audio call to the international roaming gateway.The optional initiation authentication process of mobile core network.After international roaming gateway and mobile core network were finished the link establishment of Calling Side voice bearer, paging was called.Behind the called off-hook, return calling by the international roaming gateway to caller and accept, get through voice link.
With reference to the accompanying drawings 16, speech called for the audio call process: after mobile core network is received voice call request, initiate paging to the international roaming gateway.Through SIP Options process, terminal called returns page response.The optional initiation authentication process of mobile core network.Core net and international roaming gateway are set up called bearing link, and after called off-hook was replied, the calling and called voice channel was got through, and can carry out voice call.
3. the short message transport process please refer to the content shown in accompanying drawing 17 and 18.
With reference to the accompanying drawings 17, be the short message caller of short message calling procedure: after terminal is finished registration, send short message to the international roaming gateway.The international roaming gateway to core net, and returns short message transmitting short message to terminal and sends successfully and indicate.
With reference to the accompanying drawings 18, for the short message of short message calling procedure called: after core net is received the caller note, initiate paging to the international roaming gateway.After international roaming gateway and terminal are finished SIP Options process, return page response and give mobile core network.Mobile core network is delivered to terminal by the international roaming gateway with short message.
4. Packet Service is set up process, please refer to the content shown in the accompanying drawing 19.
Terminal is after being registered to the international roaming gateway, to international roaming gateway initiation packet data call.Finish the packet bearer link establishment between international roaming gateway and mobile core network.The international roaming gateway returns to call out to terminal and accepts.
Four, the realization of VPN secure tunnel
The user can select and the international roaming gateway between set up the VPN secure tunnel, can adopt known VPN technologies, as IPSEC VPN.Interactive signaling and data message are encapsulated among the VPN and transmit between user and the international roaming gateway, and be professional through the internet transmission process safe to guarantee.
Five, charging realizes
The international roaming gateway be as can carrying mobile access network equipment or the residing position area information of user in the interface message of access network equipment and mobile core network, as the route district of 3GPP definition, lane place etc., the lane place of 3GPP2 definition etc.The mapping table of configuration and storage area information code and IP address field on the international roaming gateway.When the international roaming gateway is finished user's registration or location registers, obtain the position area information sign indicating number in user the country one belongs to or area according to user's source IP address inquiry, and the position area information sign indicating number is sent to core net.Mobile core network can identify the country at user place according to this position area information sign indicating number, thereby realizes corresponding charging policy, as different rate standards etc.
Six, the deployment of roaming place proxy gateway
For adapting to enterprise's application scenarios of branch abroad, can further (in enterprise branch office) sets up the roaming broker gateway in the roaming place, converge the customer service of enterprise branch office this locality, finish and the international roaming gateway between the secure tunnel transmission.
After terminal is obtained the IP address of roaming place proxy gateway, initiate registration and service call to the roaming place proxy gateway, dispose the IP address of international roaming gateway on the proxy gateway of roaming place or obtain by dns resolution, the roaming place gateway is to these service messages of international roaming gateway forwards.After the user successfully registered, the roaming place gateway also write down and preserves simultaneously user's log-on message.
If the roaming place gateway is judged caller and called subscriber and is all registered on this roaming place gateway, or the destination server address that the user visited is positioned at the subnet that the roaming place gateway is covered, the roaming place gateway can directly continue calling and called service, and perhaps direct service message with user capture is transmitted to the service server in the subnet of roaming place.No longer pass through international roaming gateway and the transfer of home communications network,, reduce professional propagation delay time, promote quality of service to reduce service tariff.
The roaming place gateway can select and the international roaming gateway between set up the VPN secure tunnel, the user is carried out safeguard protection through signaling and the data message that the roaming place gateway is sent to the international roaming gateway.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (11)
1. the network that can realize international roaming, the mobile core network and the Internet that comprise the local, it is characterized in that, also comprise the international roaming gateway, described international roaming gateway is arranged between local mobile core network and the Internet, roaming terminal inserts Internet by the local network of roaming place, and further inserts the mobile core network in local via Internet by the international roaming gateway, thereby realizes the international roaming function of terminal.
2. the network that can realize international roaming according to claim 1, it is characterized in that, described international roaming gateway to mate corresponding mobile core network interface type, is realized the services of roaming of respective type with one or more network element butt joints of the mobile core network in local.
3. the network that can realize international roaming according to claim 1 is characterized in that, further comprises the roaming place proxy gateway, and described roaming place proxy gateway is arranged between local area network and the Internet.
4. the network that can realize international roaming according to claim 1, it is characterized in that, described international roaming gateway further is furnished with mapping table, and described mapping table has been stored the mapping relations between position area information sign indicating number and the IP address field, is used to realize the charging policy of international roaming service.
5. the network that can realize international roaming according to claim 1 is characterized in that, further comprises service server, and the mobile core network in described service server and local links to each other, and is used to realize the international roaming of packet switch domain service.
6. the method that roaming terminal in the described network of claim 1 is managed is characterized in that, comprises the steps:
Roaming terminal inserts Internet and obtains the IP address by the local network of roaming place;
Roaming terminal obtains the IP address of roaming place international roaming gateway;
Roaming terminal is registered on the international roaming gateway of roaming place, and registers or location registers on the mobile core network in local by this international roaming gateway;
Set up data link as caller or called roaming terminal by the mobile core network in international roaming gateway and local, and further set up data route or call proceeding as called or calling terminal with the business network or the opposite side of being visited, to realize the communication service of roaming terminal and other-end and business network.
7. method according to claim 6 is characterized in that, in the step of the communication service that realizes roaming terminal and other-end, when roaming terminal during as the calling subscriber, further comprises the steps:
Roaming terminal is set up communication link to make a call business and international roaming gateway of international roaming gateway;
Set up call link between the mobile core network in international roaming gateway and local, directly service message is routed to the purpose reference address, perhaps the mobile core network in local is established to the call link of terminal called, and calling and called is finished calling switch through.
8. method according to claim 6 is characterized in that, in the step of the communication service that realizes roaming terminal and other-end, when roaming terminal during as the called subscriber, further comprises the steps:
The mobile core network that is in the calling terminal of any position instruction that makes a call to the local;
After the mobile core network in local is received paging instructions, initiate service paging to the international roaming gateway;
The international roaming gateway is sent to roaming terminal with service paging;
Roaming terminal returns page response, is sent to the international roaming gateway;
The international roaming gateway sends it back page response the mobile core network in local;
Roaming terminal and international roaming gateway are set up call link, and the international roaming gateway is established to the call link of the mobile core network in local;
Set up call link between the mobile core network in calling terminal and local.
9. according to any described method of claim 6 to 8, it is characterized in that, roaming terminal obtains in the step of IP address of international roaming gateway, the IP address that roaming terminal obtains the international roaming gateway by dns resolution, perhaps the IP address that obtains the international roaming gateway by the configuration information that reads in firmware that roaming terminal is joined or the corresponding software.
10. according to any described method of claim 6 to 8, it is characterized in that described method further comprises the steps:
When the international roaming gateway is received the calling of terminal initiation, judge whether terminal called and calling terminal are all registered or the location registers mistake on same international roaming gateway;
If confirm all registeredly, then directly finish call proceeding by the international roaming gateway, do not need again to continue through the mobile core network transfer in local;
If there is a side still unregistered, the mobile core network that then reports to the local carries out follow-up switching through.
11. according to any described method of claim 6 to 8, it is characterized in that, further comprise the roaming place proxy gateway that is arranged between local area network and the Internet in the residing network of terminal, roaming terminal is connected to Internet by the roaming place proxy gateway, and described in the case method further comprises the steps:
When the roaming place proxy gateway is received the calling of terminal initiation, judge whether terminal called and calling terminal are all registered or the location registers mistake on the proxy gateway of same roaming place;
If confirm all registeredly, then directly finish call proceeding by the roaming place proxy gateway, do not need again to continue through the mobile core network transfer in international roaming gateway and local;
If there is a side still unregistered, the mobile core network that then reports to international roaming gateway and local carries out follow-up switching through.
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| CN 201010187516 CN101867902A (en) | 2010-05-28 | 2010-05-28 | Network capable of realizing international roaming and method for managing roaming terminal |
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| CN 201010187516 CN101867902A (en) | 2010-05-28 | 2010-05-28 | Network capable of realizing international roaming and method for managing roaming terminal |
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| CN 201010187516 Pending CN101867902A (en) | 2010-05-28 | 2010-05-28 | Network capable of realizing international roaming and method for managing roaming terminal |
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| CN108370401A (en) * | 2015-11-03 | 2018-08-03 | 辛克有限公司 | The method for quickly to connect user for using ip voice to communicate |
| CN105491547A (en) * | 2015-11-30 | 2016-04-13 | 叶碧华 | Multifunctional roaming equipment, global roaming system and method |
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| CN106131354A (en) * | 2016-06-27 | 2016-11-16 | 乐视控股（北京）有限公司 | Dialing method for building up and system |
| CN107800788A (en) * | 2017-10-23 | 2018-03-13 | 中国人民解放军信息工程大学 | A kind of calling party's area positioning method based on WMG |
| CN111543073B (en) * | 2017-11-03 | 2023-10-13 | 联想（新加坡）私人有限公司 | Apparatus and method for user authentication |
| CN111543073A (en) * | 2017-11-03 | 2020-08-14 | 联想（新加坡）私人有限公司 | User authentication using connection information provided by blockchain networks |
| CN108429684A (en) * | 2018-03-30 | 2018-08-21 | 上海地面通信息网络股份有限公司 | A kind of Network Access Method redirected based on dynamic routing with IP mapping techniques |
| CN110324817A (en) * | 2019-07-02 | 2019-10-11 | 中国联合网络通信集团有限公司 | International roaming communication means, service control point node based on block chain |
| CN110351701A (en) * | 2019-08-09 | 2019-10-18 | 中国联合网络通信集团有限公司 | Communication means, device and the storage medium of international roaming voice service |
| CN110351701B (en) * | 2019-08-09 | 2022-01-25 | 中国联合网络通信集团有限公司 | Communication method, device and storage medium for international roaming voice service |
| CN112511997A (en) * | 2020-11-30 | 2021-03-16 | 上海欣方智能系统有限公司 | System and method for cooperation roaming of different regional telecommunication operators |
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| CN115175118B (en) * | 2022-07-05 | 2024-02-13 | 中国联合网络通信集团有限公司 | Communication service complementary system and method based on cooperative WiFi |
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