CN100461958C - Mobile communication access system and method - Google Patents
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- CN100461958C CN100461958C CNB2006100118511A CN200610011851A CN100461958C CN 100461958 C CN100461958 C CN 100461958C CN B2006100118511 A CNB2006100118511 A CN B2006100118511A CN 200610011851 A CN200610011851 A CN 200610011851A CN 100461958 C CN100461958 C CN 100461958C
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Abstract
The related access method for mobile communication comprises: the DNS analyzes visited IP address of agent node according to general access name from GPRS service node; the visited GPRS service support node builds data connection and sends request to the agent node; the latter analyzes to obtain the attributed IP address and resend the request information to the attributed GPRS gateway; once receiving information, the gateway responses to the visited GPRS node; then the latter sends receiving information to user and builds data corresponding communication.
Description
Technical field
The present invention relates to a kind of communication system, especially relate to a kind of ownership place connecting system and method.
Background technology
GPRS (GPRS) network is mainly by GPRS serving GPRS support node (SGSN, ServingGPRS Support Node), GGSN (GGSN), charging gateway (CG) and name server network elements such as (DNS) form, wherein SGSN is responsible for GPRS user's access monitoring.GGSN is the interface of GPRS net and external packet data net (as: Internet, enterprise-specific net etc.).DNS resolves to the IP address of corresponding GGSN with the Access Point Name (APN) of user terminal, for SGSN provides routing iinformation, so that the user is linked in the correct outer data network.
Mobile operator makes the mobile subscriber when enjoying the wireless voice access by at existing network deploy GPRS radio packet network, can also enjoy wireless data access.And along with being surging forward of data value-added service, each mobile operator is before 3G arrives, all strengthened investment in wireless data service, how to guarantee investor's running income, prevent the arrearage of user data service, carrying out user's credit monitoring, is that each big operator does not have the basic problem that solves for many years.
For national roaming subscriber, the wireless data access point is visit ground GGSN at present.For the international roaming user, the wireless data access point is international GGSN at present.Common international GGSN is only indivedual at home, and the city is provided with separately.And user's management data is stored in ownership place, so use the charging of data service to monitor in real time to the roamer, can only take other billing schemes, charge such as the BOSS system, be that after falling ticket by the strange land deduct fees in transmission recurrence possession, in time supervisory user inserts behavior, causes subscriber arrearage, especially the malicious owing fee data volume is big more, and operator's loss is big more.The 3G network that looks to the future simultaneously can be greatly developed data service, and it is carried out content charging, the content charging strategy is to define on GGSN, inserts if can not get back to homing GGSN, then the roamer can not enjoy the content rate of this province definition, is unfavorable for carrying out of data service.
The Access Point Name (APN) that user terminal is provided with indicates the outer data network that the user inserts.Be divided into two classes by purposes:
A kind of is all to support the APN that the external data network that inserts is distributed for the whole network, also claims general APN, shape as, WAP-Access, this type of APN do not comprise user's home zone domain information, the general APN that the user in different provinces is provided with is the same; Another kind of APN distributes APN (enterprise's private network inserts) for the external data network of non-the whole network access, also claims regional APN, and shape such as isp.com.bj, this type of APN comprise user's home zone domain information.
Having defined APN in the 3G communication document 3GPP TS of International Standards Organization 23.060 appendix As (APN and GGSNSelection) resolves and the access point selection course.
As shown in Figure 1, SGSN at first judges the APN (R) of reporting of user, and when the APN of reporting of user (R) was correct signatory APN, SGSN can carry out operator's tag extension to APN (R), and delivers to DNS and inquire about.For the roamer, suppose that the SGSN of roaming place follows the normal process of 3GPP fully, this class user is carried out parsing and the access point of APN and select.From above normal process as can be seen, for the APN of two kinds of common form of user terminal situation (the general APN of shape such as WAP-Access and the regional APN of shape such as isp.com.bj) is set, SGSN finally to the query requests that DNS initiates is:
APN(R).MNC<mnc>.MCC<mcc>.gprs
The terminal use is if setting area APN owing to comprise the home zone domain information, can normally get back to homing GGSN by dns resolution and insert.
The terminal use is if be provided with general APN, the general APN that the roamer in different provinces reports is the same, because inclusion region information not, at present to national roaming subscriber, the DNS analytic uniform is to visit ground GGSN, to the international roaming user, under the common parsing of international DNS and ownership state DNS, can only analytic uniform arrive above the international GGSN of ownership state, by the wireless data access point of international GGSN as the international roaming user, the requirement that can't solve mobile subscriber access belonging GGSN under roaming condition.
Summary of the invention
Technical problem to be solved by this invention provides a kind of mobile communication access system and method, the present invention is by increasing GGSN agency's by name device node in network, under the prerequisite that does not change the setting of the mobile phone terminal setting and the roaming place network equipment, the ownership place of finishing the roamer inserts.Thereby make the GGSN of user's wireless data access point location at ownership place, because user's management data and credit monitor message are located at ownership place, all charge informations of collection user that like this can be real-time guarantee the credit monitoring of wireless data service.
To achieve these goals, the invention provides a kind of mobile communication access method, the ownership place that carries out the roamer inserts, and may further comprise the steps:
Name server (DNS) parses the IP address of agent node (GGSN-PROXY) according to the general Access Point Name (APN) that visit ground GPRS serving GPRS support node (SGSN, Serving GPRSSupport Node) reports;
Visit ground GPRS serving GPRS support node (SGSN, Serving GPRS Support Node) is set up and is connected with the data of agent node, sends solicited message (create PDP context request) to agent node;
Agent node is resolved the IP address that obtains ownership place GGSN (GGSN, Gateway GPRS Support Node) according to above-mentioned solicited message (create PDP context request);
Agent node is according to above-mentioned ownership place GGSN (GGSN, Gateway GPRSSupport Node) above-mentioned solicited message (create PDP context request) is transmitted to ownership place GGSN (GGSN, Gateway GPRSSupport Node) in IP address;
Ownership place GGSN (GGSN, Gateway GPRS Support Node) after receiving above-mentioned solicited message, reply response message (create PDP context response) to visit ground GPRS serving GPRS support node (SGSN, Serving GPRSSupport Node);
After visit ground GPRS serving GPRS support node (SGSN, Serving GPRS Support Node) is received above-mentioned response message, send receive information (activate PDP context accept) and the data communication of setting up user and belonging area network to the user.
Wherein, agent node is being received above-mentioned solicited message, by the number that contains roamer's information of home location that carries in the analysis request information (create PDPcontext request), comprise travelling carriage comprehensive service digital net number (MSISDN) or international mobile station identity number (IMSI), obtain the IP address of ownership place GGSN (GGSN, Gateway GPRS Support Node).
Wherein, agent node is being received above-mentioned solicited message, travelling carriage comprehensive service digital net number (MSISDN) by the roamer that carries in the analysis request information (create PDPcontext request), obtain the IP address of ownership place GGSN (GGSN, Gateway GPRS Support Node).
Wherein, agent node is to ownership place GGSN (GGSN, Gateway GPRSSupport Node) forwarding solicited message (create PDP context request) is preceding, the IP layer destination address of solicited message is revised as the IP address of above-mentioned ownership place GGSN (GGSN, Gateway GPRSSupport Node).
To achieve these goals, the present invention also provides a kind of mobile communication access system, the ownership place that carries out the roamer inserts, and comprises address analyzing device, jockey, answering device, apparatus for establishing is characterized in that, also comprises the agent node device, described agent node device is used to resolve the ownership place address, and transmits solicited message according to this ownership place address.
Wherein, described agent node device comprises:
The number resolver is used for the solicited message according to described jockey transmission, resolves the IP address that obtains the ownership place GGSN;
Retransmission unit is transmitted above-mentioned solicited message according to the IP address of above-mentioned ownership place GGSN to the ownership place GGSN.
Wherein, receiving above-mentioned solicited message, the number that contain roamer information of home location of number resolver by carrying in the analysis request information (create PDPcontext request), comprise travelling carriage comprehensive service digital net number (MSISDN) or international mobile station identity number (IMSI), obtain the IP address of ownership place GGSN (GGSN, Gateway GPRS Support Node).
Wherein, receiving above-mentioned solicited message, the number resolver is by the roamer's that carries in the analysis request information (create PDPcontext request) travelling carriage comprehensive service digital net number (MSISDN), obtain the IP address of ownership place GGSN (GGSN, Gateway GPRS Support Node).
Wherein, agent node is to ownership place GGSN (GGSN, Gateway GPRSSupport Node) forwarding solicited message (create PDP contextrequest) is preceding, retransmission unit is revised as the IP layer destination address of solicited message the IP address of above-mentioned ownership place GGSN (GGSN, Gateway GPRS Support Node).
Wherein, retransmission unit is transmitted amended solicited message (create PDP context request) to homing GGSN.
After increasing GGSN agent equipment node, to the not influence of SGSN of roaming place, it still carries out judgement and the access point selection of APN according to the 3G communication 3GPP of International Standards Organization relevant criterion.Only at SGSN after GGSN agency initiates the PDP data and connects, the GGSN agency is unlike common GGSN equipment, set up PDP data interface channel with SGSN, but by analysis modify to the PDP packet, further assist visit ground SGSN to set up data and be connected, realize that roamer's ownership place inserts requirement with ownership GGSN.
Description of drawings
Fig. 1 is a system flow chart of the prior art;
Fig. 2 is a system construction drawing of the present invention;
Fig. 3 is a system configuration schematic diagram of the present invention;
Fig. 4 is a system flow chart of the present invention;
Fig. 5 is a system flow chart of the present invention.
Embodiment
As shown in Figure 2, according to mobile communication access system provided by the present invention, the roamer can realize that ownership place inserts, described mobile communication access system comprises address analyzing device, jockey, answering device, apparatus for establishing and agent node device, described agent node device is used to resolve the ownership place address, and transmits solicited message according to this ownership place address.After the user sends the access solicited message, address analyzing device is replied the IP address that GGSN acts on behalf of to visit ground SGSN, jockey is according to the IP address of agent node, the data of setting up visit ground SGSN and agent node are connected, and send solicited message (createPDP context request) to agent node; The number resolver is resolved and is obtained ownership place (ownership GGSN) IP address according to the roamer's who carries in the above-mentioned solicited message (create PDP contextrequest) travelling carriage comprehensive service digital net number (MSISDN); Retransmission unit is revised as the IP address of above-mentioned homing GGSN to solicited message (create PDP contextrequest) the IP layer destination address of packet, and transmits to homing GGSN; Answering device is after receiving above-mentioned solicited message, and the control homing GGSN is replied response message (create PDP context response) to visit ground SGSN; After visit ground SGSN received above-mentioned response message, apparatus for establishing sent receive information (activate PDP contextaccept) and the data communication of setting up user and homing GGSN to the user.
After increasing GGSN agent equipment node, wireless data roamer's connecting system as shown in Figure 3.
The terminal use is if setting area APN under dns resolution, gets back to homing GGSN and inserts.
The terminal use, at first gets back on the GGSN agency of ownership place under dns resolution if general APN is set, and the further parsing through the GGSN agency inserts by homing GGSN at last.Final roaming data user's the ownership place of realizing inserts.
Below be to be combined in the function that the existing standard determination flow is described the GGSN agency, as shown in Figure 4.
In step 1, whole judgement flow process meets existing standard, visit ground SGSN when receiving that the roamer reports APN, visit ground SGSN according to existing standard flow decision reporting of user APN for whether legal.If illegal, insert with regard to refusing user's.If legal, visit ground SGSN initiates the address lookup request to meeting to dns server, comprises complete APN information (comprising APN operator logo APN-NI and the sign A PN-OI of APN operator) in the request.In step S21, dns server is replied GGSN agency's IP address, in step S22, visit ground SGSN sets up with GGSN agency's data and is connected, send solicited message (create PDP context request) to the GGSN agency, in step S23, the GGSN agent node obtains its roamer's who carries travelling carriage comprehensive service digital net number (MSISDN) by analysis request packet (create PDP context request); In step S24, agent node is analyzed Mobile Subscriber International ISDN Number, obtains the IP address of roamer's homing GGSN.Then, in step S25, the IP address that the GGSN agent node is revised as homing GGSN to the IP layer destination address of this PDP data connection request bag; In step S26, carry out the three layers of IP bag and transmit, amended PDP data connection request bag is transmitted to homing GGSN; In step S27, after homing GGSN is received the PDP connection request, again the SGSN that visits ground being returned " Create PDP Context Response " replys, then visit ground SGSN meeting and homing GGSN are set up normal data communication, accomplish still can finish the requirement that ownership place inserts to the roamer.
As shown in Figure 5, set up message flow, further the GGSN agency is illustrated in conjunction with the connection of the PDP data among the 3G communication document 3GPP TS of International Standards Organization 29.060 " GTP acrossthe Gn and Gp interface ".
1) roamer sends activate PDP context request message to visit ground SGSN, contains the APN information that user terminal is provided with in this message.
2) after visit ground SGSN receives request, judge whether to allow the user to insert according to user signing contract information.If allow, visit ground SGSN can initiate query requests to dns server, comprises the APN complete information (comprising APN operator logo APN-NI and the sign A PN-OI of APN operator) of 3GPP standard code in the request.
3) dns server replies to the IP address of visit ground SGSN with the GGSN agency.
4) visit ground SGSN sends create PDP context request message to the GGSN agency.
5) GGSN proxy resolution create PDP context request message is obtained roamer's wherein travelling carriage comprehensive service digital net number (MSISDN) information, and translates the IP address of ownership GGSN.
6) the create PDP context request message IP layer destination address received of GGSN agents modify is ownership GGSN IP, then create PDP context request forwards given ownership GGSN.
7) after ownership GGSN receives the create PDP context request message that contains SGSN IP address, visit ground, directly reply create PDP context response message to visit ground SGSN.
After visit ground SGSN receives create PDP context respons message, therefrom obtain the IP address of ownership GGSN, and successfully foundation is connected with the data that belong between the GGSN, and visit ground SGSN sends activate PDP context accept message to the roamer simultaneously.So far, portable terminal can send business datum to ownership GGSN.
Above process as can be seen, the GGSN agent equipment should possess following function:
Possess 3-7 layer protocol analysis ability, can connect bag to the PDP data and discern, therefrom extract the MSISDN field.Number piecewise analysis ability can find ownership GGSN address according to the MSISDN address.The PDP data connect the IP layer destination address of bag and revise ability, can change original GGSN Agent IP address into ownership GGSN IP address.The PDP data connect the transfer capability of bag, can connect bag to amended PDP data and be transmitted to ownership GGSN.
After increasing GGSN agent equipment node, to the not influence of SGSN of roaming place, it still carries out judgement and the access point selection of APN according to the 3G communication 3GPP of International Standards Organization relevant criterion.Only at SGSN after GGSN agency initiates PDP data connection request, the GGSN agency is unlike common GGSN equipment, set up PDP data interface channel with SGSN, but by analysis modify to the PDP packet, further assist visit ground SGSN to set up data and be connected, realize that roamer's ownership place inserts requirement with ownership GGSN.
Those skilled in the art can also carry out various modifications to above content under the condition of the spirit and scope of the present invention that the claims that do not come off are determined.Therefore scope of the present invention is not limited in above explanation, but determine by the scope of claims.
Claims (10)
1. a mobile communication access method carries out roamer's ownership place access, it is characterized in that, may further comprise the steps:
Name server parses the IP address of the GGSN agent node device that increases newly in the network according to the general Access Point Name that visit ground GPRS serving GPRS support node reports;
Visit ground GPRS serving GPRS support node is set up and is connected with the data of this GGSN agent node device, sends solicited message to this GGSN agent node device;
This GGSN agent node device is resolved the IP address that obtains the ownership place GGSN according to above-mentioned solicited message;
This GGSN agent node device is transmitted above-mentioned solicited message according to the IP address of above-mentioned ownership place GGSN to the ownership place GGSN;
The ownership place GGSN is after receiving above-mentioned solicited message, and the GPRS serving GPRS support node is replied response message to visit ground;
After visit ground GPRS serving GPRS support node is received above-mentioned response message, receive information to user's transmission, and set up the data communication of user and belonging area network.
2. the method for claim 1, it is characterized in that, this GGSN agent node device is being received above-mentioned solicited message, by the number that contains roamer's information of home location that carries in the analysis request information, obtains the IP address of ownership place GGSN.
3. method as claimed in claim 1 or 2, it is characterized in that, this GGSN agent node device is being received above-mentioned solicited message, by the roamer's that carries in the analysis request information travelling carriage comprehensive service digital net number, obtains the IP address of ownership place GGSN.
4. method as claimed in claim 2, it is characterized in that, this GGSN agent node device is before the ownership place GGSN is transmitted solicited message, the IP address of the IP layer destination address of above-mentioned solicited message being revised as above-mentioned ownership place GGSN.
5. mobile communication access system, the ownership place that carries out the roamer inserts, comprise address analyzing device, jockey, answering device, apparatus for establishing, it is characterized in that, also comprise GGSN agent node device, described GGSN agent node device is used to resolve the address of ownership place GGSN, and transmits solicited message according to the address of this ownership place GGSN;
After the user initiated to insert solicited message, address analyzing device was replied the IP address of GGSN agent node device to visit ground GPRS serving GPRS support node;
Jockey is according to the IP address of GGSN agent node device, and the data of setting up visit ground GPRS serving GPRS support node and GGSN agent node device are connected, and send solicited message to GGSN agent node device;
Answering device is after receiving above-mentioned solicited message, and control ownership place GGSN is replied response message to visit ground GPRS serving GPRS support node;
After visit ground GPRS serving GPRS support node was received above-mentioned response message, apparatus for establishing sent to the user and receives information, and sets up the data communication of user and ownership place GGSN.
6. system as claimed in claim 5 is characterized in that, described GGSN agent node device comprises:
The number resolver is used for the solicited message according to described jockey transmission, resolves the IP address that obtains the ownership place GGSN;
Retransmission unit is transmitted above-mentioned solicited message according to the IP address of above-mentioned ownership place GGSN to the ownership place GGSN.
7. system as claimed in claim 6 is characterized in that, is receiving above-mentioned solicited message, and the number that contain roamer information of home location of number resolver by carrying in the analysis request information obtains the IP address of ownership place GGSN.
8. system as claimed in claim 7, it is characterized in that, receiving above-mentioned solicited message, the number resolver obtains the IP address of ownership place GGSN by the roamer's that carries in the analysis request information travelling carriage comprehensive service digital net number.
9. system as claimed in claim 6, it is characterized in that, described GGSN agent node device is before the ownership place GGSN is transmitted solicited message, and retransmission unit is revised as the IP layer destination address of above-mentioned solicited message the IP address of above-mentioned ownership place GGSN.
10. system as claimed in claim 9 is characterized in that, retransmission unit is transmitted amended solicited message to the ownership place GGSN.
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| CNB2006100118511A CN100461958C (en) | 2006-04-30 | 2006-04-30 | Mobile communication access system and method |
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| CNB2006100118511A CN100461958C (en) | 2006-04-30 | 2006-04-30 | Mobile communication access system and method |
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| CN100461958C true CN100461958C (en) | 2009-02-11 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101257702B (en) * | 2007-03-01 | 2012-12-12 | 华为技术有限公司 | Method, system and gateway equipment for realizing roaming user to access belonging area network |
| CN101080098B (en) * | 2007-06-01 | 2010-12-08 | 中国移动通信集团公司 | A communication method and system |
| CN101068439B (en) * | 2007-06-01 | 2011-05-11 | 中国移动通信集团公司 | Communicating method, mobile terminal, insertion point equipment and communication system |
| EP2658333B1 (en) * | 2012-04-26 | 2015-10-07 | Belgacom International Carrier Services | System and method for APN correction in GTP messages associated with GPRS data services offered by mobile operator using a sponsor network |
| CN111404975B (en) * | 2019-01-02 | 2023-09-19 | 中国移动通信集团终端有限公司 | Message transmission method, device, equipment and computer storage medium |
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Owner name: CHINA LINKED NETWORK COMMUNICATION GROUP CO.,LTD. Free format text: FORMER NAME: CHINA UNITED COMMUNICATION CO., LTD. |
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Address after: No. 21, Finance Street, Beijing, Xicheng District Patentee after: China United Network Telecommunication Group Co., Ltd. Address before: Number 133, North Main Street, Xicheng District, Beijing, Xidan Patentee before: China United Communication Co., Ltd. |