CN101399842A - Method for customer information interaction between WAP gateway and GGSN - Google Patents
Method for customer information interaction between WAP gateway and GGSN Download PDFInfo
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- CN101399842A CN101399842A CNA2007101515912A CN200710151591A CN101399842A CN 101399842 A CN101399842 A CN 101399842A CN A2007101515912 A CNA2007101515912 A CN A2007101515912A CN 200710151591 A CN200710151591 A CN 200710151591A CN 101399842 A CN101399842 A CN 101399842A
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Abstract
The embodiment of the invention discloses a method for exchanging user information between a WAP gateway and GGSN, and the method comprises the following steps: when the user is on line, the WAP gateway which is in charge of user access receives and stores temporary resource information which is distributed by the GGSN for the user, thus providing the user with access service of WAP application; when the temporary resource information stored in the WAP gateway is lost or the WAP gateway is switched, the WAP gateway which is currently in charge of the user access acquires the temporary resource information from the GGSN again. The embodiment of the invention also discloses a WAP gateway which comprises a user information acquiring unit, an abnormality sensing unit and a WAP application access unit. By adopting the embodiment of the invention, user experience can be improved when the WAP gateway is switched or the user information in the WAP gateway is lost.
Description
Technical field
The present invention relates to WAP application service field, particularly a kind of WAP gateway and and GGSN between the method for exchanging user information.
Background technology
Internet and mobile communication be as two important symbols of the information-intensive society of marching toward, and the Internet correspondence a large amount of information resources that can be accessed, and mobile communication then is the personal communication of roaming everywhere.The development of WAP technology impels both to organically combine, and makes people's visit information resource no longer be subjected to the restriction in time and space.
The mobile subscriber is during by the resource on the WAP gateway visit Internet, at first to pass through GGSN, GGSN distributes related resource and preserves these information for it, by Radius message user profile is sent to WAP gateway subsequently, WAP gateway and GGSN want cache user information like this, owing to mutual reason such as switchings between information drop-out, equipment fault, the system, often cause in two equipment user profile inconsistent, cause user capture to fail.
At present, the flow process of user capture WAP station website comprises as shown in Figure 1:
Step 1～2, the terminal use reaches the standard grade and initiates the PDP activation;
Give the line request until the user, GGSN deletion user profile also notifies WAP gateway to delete this user profile.In whole user profile reciprocal process, the user profile that the reception GGSN that WAP gateway only just can be passive when the user reaches the standard grade for the first time sends all can't get access to user profile in other cases.This just causes such scheme to have following shortcoming:
1, switch between GGSN and the WAP gateway, the user can't normally visit
Under the normal condition, A area user and B area user profile are kept at respectively among the GGSN and WAP GW of two places, the user profile basically identical among two places GGSN and the WAP GW, and the two places customer service all can normally be visited, as shown in Figure 2.
When a certain LAN device fails, local service need be cut other areas, as shown in Figure 3.At this moment, the WAP GW on A ground stops service, A ground business need be cut into B ground, be about to GGSN (A) and point to WAP GW (B),, therefore need A ground user offline because WAP GW (B) does not have the user data among the GGSN (A), again the back GGSN (A) that reaches the standard grade just can send to A ground user profile WAP GW (B), certainly under this sight, GGSN (A) also can force users roll off the production line, and allows the user initiate the request of reaching the standard grade again.Reduce the user experience on A ground like this.
2, cause WAP GW to lose local GGSN user data information when reasons such as information drop-out or WAP GW equipment break down, cause the user capture failure.
As shown in Figure 4, step 1～10 are identical with the described step 1 of Fig. 1～10, after this, because a variety of causes may cause WAP GW to lose local GGSN user data information, at this moment after WAP GW receives user's request of step 11, because user data is lost, miscue can appear.When continuous appearance repeatedly after the miscue, user terminal is forced to roll off the production line, and reaches the standard grade again once more to initiate PDP and activate request, can make the user reuse the WAP application service by the mode that GGSN redistributes user's temporary resource information.Had a strong impact on the use of user, reduced user experience business.
Summary of the invention
In view of this, the embodiment of the invention provides the method for interacting user information between a kind of WAP gateway and GGSN, can WAP gateway switch or WAP gateway in user profile improve user experience when losing.
The embodiment of the invention also provides a kind of WAP gateway, can WAP gateway switch or WAP gateway in user profile improve user experience when losing.
For achieving the above object, the embodiment of the invention adopts following technical scheme:
The method of exchanging user information between a kind of WAP gateway and the GGSN comprises:
When the user reached the standard grade, the WAP gateway that responsible user inserts received and preserves the temporary resource information that GGSN distributes for the user, for the user provides WAP the access service of application;
When the temporary resource information dropout of preserving in the WAP gateway or carry out WAP gateway when switching, the WAP gateway that current responsible user inserts obtains described temporary resource information from GGSN again.
A kind of WAP gateway comprises:
The user profile acquiring unit is used for when the user reaches the standard grade, and receives the temporary resource information that GGSN distributes for the user, and offers described WAP application access unit; And after the notice that receives the transmission of abnormality sensing unit, obtain user's temporary resource information again from GGSN;
The abnormality sensing unit, the temporary resource that is used for determining the user is lost or has been carried out the WAP gateway switching, and notice user profile acquiring unit;
WAP uses access unit, and the user's that provides according to the user profile acquiring unit temporary resource information is provided, the access service that provides WAP to use for the user.
A kind of gateway GPRS strong point GGSN comprises:
The temporary resource allocation units are used for when the user reaches the standard grade, and the temporary resource information for the user distributes is saved in memory cell, and the notice temporary resource issues the temporary resource that the unit issues this distribution;
Temporary resource issues the unit, is used for after receiving the notice that issues the appointment temporary resource of described temporary resource allocation units, extracts the appointment temporary resource of preserving in the memory cell and also is handed down to the current WAP gateway that this user inserts of being responsible for; Also be used for when the temporary resource that WAP gateway switches or WAP gateway is preserved is lost, issue user's temporary resource information again to the current WAP gateway of being responsible for this user's access;
Memory cell is used to preserve the temporary resource information that the temporary resource allocation units distribute for the user.As seen from the above technical solution, in embodiments of the present invention, when the user reached the standard grade, the WAP gateway that responsible user inserts received and preserves the temporary resource information that GGSN distributes for the user, for the user provides WAP the access service of application; When the temporary resource information dropout of preserving in the WAP gateway or carry out WAP gateway when switching, the WAP gateway that current responsible user inserts obtains described temporary resource information from GGSN again.Like this,, make can not impact, improve user's experience user capture because WAP gateway can obtain user's temporary resource information again.
Description of drawings
Fig. 1 is the schematic flow sheet of present user capture WAP website.
Fig. 2 is the GGSN and the WAP gateway schematic diagram in following two areas of normal condition.
Fig. 3 is the GGSN and the WAP gateway schematic diagram in following two areas of switching state.
The browsing process figure that Fig. 4 loses for user profile in the existing WAP visit.
Fig. 5 is the method overview flow chart of interactive information between WAP gateway and GGSN in the embodiment of the invention.
Fig. 6 is the overall construction drawing of WAP gateway in the embodiment of the invention.
Fig. 7 is the overall construction drawing of GGSN in the embodiment of the invention.
Fig. 8 is the method particular flow sheet of interacting user information between WAP gateway and the GGSN in the embodiment of the invention one.
Fig. 9 is according to the method flow of the embodiment of the invention one interacting message schematic diagram in each inter-entity.
Figure 10 is the method particular flow sheet of interacting user information between WAP gateway and the GGSN in the embodiment of the invention two.
Figure 11 is according to the method flow of the embodiment of the invention two interacting message schematic diagram in each inter-entity.
Figure 12 is the method particular flow sheet of interacting user information between WAP gateway and the GGSN in the embodiment of the invention three.
Figure 13 is the method flow according to the embodiment of the invention three, after switching under the still online situation of user at the interacting message schematic diagram of each inter-entity.
Figure 14 is the method flow according to the embodiment of the invention three, after switching under the not online situation of user at the interacting message schematic diagram of each inter-entity.
Embodiment
For making purpose of the present invention, technological means and advantage clearer, the present invention is described in further details below in conjunction with accompanying drawing.
Fig. 5 is the method overview flow chart of interactive information between WAP gateway and GGSN in the embodiment of the invention.As shown in Figure 5, this method comprises:
Step 501, when the user reached the standard grade, the WAP gateway that responsible user inserts received and preserves the temporary resource information that GGSN distributes for the user, for the user provides WAP the access service of application.
Step 502, when the temporary resource information dropout of preserving in the WAP gateway or carry out WAP gateway when switching, the WAP gateway that current responsible user inserts obtains described temporary resource information from GGSN again.
Wherein, the obtaining the temporary resource information mode and can have two kinds of this step, a kind of is WAP gateway initiatively obtains temporary resource information from the user to GGSN, another kind is GGSN initiatively sends a temporary resource information from the user to WAP gateway; In addition, lose user profile or carry out the different situations that WAP gateway switches for WAP gateway, the concrete mode of obtaining temporary resource information again is also different.In the specific embodiment of back, will be described in further details with regard to the concrete enforcement of the following two kinds of obtain manners of different situations.
Fig. 6 is the overall construction drawing of WAP gateway in the embodiment of the invention.As shown in Figure 2, this WAP gateway comprises that user profile acquiring unit, abnormality sensing unit and WAP use access unit.
In this WAP gateway, the user profile acquiring unit is used for when the user reaches the standard grade, and receives the temporary resource information that GGSN distributes for the user, and offers described WAP application access unit; And after the notice that receives the transmission of abnormality sensing unit, obtain user's temporary resource information again from GGSN.The abnormality sensing unit, the temporary resource that is used for determining the user is lost or has been carried out the WAP gateway switching, and notice user profile acquiring unit.WAP uses access unit, and the user's that provides according to the user profile acquiring unit temporary resource information is provided, the access service that provides WAP to use for the user.
Fig. 7 is the overall construction drawing of GGSN in the embodiment of the invention.As shown in Figure 7, this GGSN comprises: temporary resource allocation units, temporary resource issue unit and memory cell.
In this GGSN, the temporary resource allocation units are used for when the user reaches the standard grade, and the temporary resource information for the user distributes is saved in memory cell, and the notice temporary resource issues the temporary resource that the unit issues this distribution;
Temporary resource issues the unit, is used for after receiving the notice that issues the appointment temporary resource of described temporary resource allocation units, extracts the appointment temporary resource of preserving in the memory cell and also is handed down to the current WAP gateway that this user inserts of being responsible for; Also be used for when the temporary resource that WAP gateway switches or WAP gateway is preserved is lost, issue user's temporary resource information again to the current WAP gateway of being responsible for this user's access;
Memory cell is used to preserve the temporary resource information that the temporary resource allocation units distribute for the user.
Embodiment one:
In the present embodiment, suppose that user profile is lost in the WAP gateway, and WAP gateway from the mode that GGSN obtains user's temporary resource information is again: WAP gateway active inquiry mode.Because in the present embodiment is that user profile is lost in WAP gateway, therefore, the user never changes for providing the WAP gateway of WAP access services.
Fig. 8 is the method particular flow sheet of interacting user information between WAP gateway and the GGSN in the embodiment of the invention one.As shown in Figure 8, this method comprises:
Cause the reason that user profile loses may be various, for example user's on-line message be lost or WAP gateway internal fault etc.
Determine that the concrete mode that user profile is lost is: WAP gateway receives user that GGSN transmits when asking, and WAP gateway is found self not this user profile, then determines to have lost this user profile.
In this step, WAP gateway is determined the pairing GGSN in this IP address according to the IP address in user's request, sends the user profile query messages to this GGSN then, and comprise the IP address of terminal and the IP address of GGSN in the user profile query messages.The user profile query messages can redefine or the form that increases a field in existing message realizes.
In the concrete present embodiment, newly-increased a pair of Radius message is respectively Interim-Query-Request and Interim-Query-Response.Wherein Interim-Query-Request is the user profile query messages of this step transmission, and Interim-Query-Response is the user profile inquiry response in the step 704.When WAP gateway receives that the user asks, find not this user profile, send query messages Interim-Query-Request to GGSN, carry the IP address of GGSN and terminal, after GGSN receives this query messages, this IP user information corresponding is sent to WAP gateway by Interim-Query-Response, and its message content is with reference to Accounting-Request Start message.Two message structure definables as shown in Table 1 and Table 2.
Table 1 Interim-Query-Request message definition
| Field name | Describe | Remarks |
| MessageType | Type of message (Interim_Query_Request) | Essential |
| Calling_ID | IP address of terminal | Essential |
| GGSNIP | The IP address of GGSN | Essential |
| … | … |
Table 2 Interim-Query-Response message definition
| Field name | Describe | Remarks |
| MessageType | Type of message (Interim_Query_Response) | Essential |
| MSISDN | Subscriber phone number | Essential |
| IMSI | Terminal IMSI number | Optional |
| User_Name | User name | Optional |
| User_Type | User type | Optional |
| OperateID | Carrier ID | Optional |
| NAS?IP | Access Network IP address | Essential |
| Calling_ID | IP address of terminal | Essential |
| Acct_Session_ID | Session id | Essential |
| ChargeID | Charging ID | Essential |
| Qos | Service quality | Optional |
| BearType | Bearer types | Optional |
| SGSN?IP | SGSN IP address | Optional |
| APN | Access points | Optional |
| … | … | … |
In this step, user's temporary resource information of returning to WAP gateway can comprise information such as carrying subscriber phone number, charging ID, Qos, APN.And the user profile inquiry response that returns can be the message of redetermination, or the new field of expansion realizes in original message.
In the present embodiment, as previously mentioned, redetermination Interim-Query-Request message is as the user profile inquiry response.
In this step, WAP gateway extracts user's temporary resource information and preserves in the user profile inquiry response that receives, to have regained the user profile of losing.
So far, the method flow in the present embodiment finishes.Be illustrated in figure 9 as according to the interacting message schematic diagram of above-mentioned flow process in each inter-entity.By said process as seen, after WAP gateway is lost user profile, can obtain the user profile of losing again by the mode of WAP gateway active inquiry user temporary resource information, thereby avoid having improved user's experience because user profile is lost the situation generation of the refusing user's service that causes.
Embodiment two:
In the present embodiment, suppose that WAP gateway switches, change the user of former cause WAP GW (A) service into service, and WAP gateway from the mode that GGSN obtains user's temporary resource information is again: WAP gateway active inquiry mode by WAP GW (B).WAP gateway switches in the present embodiment, and before the switching, GGSN A points to WAP GW (A), is WAP GW (A) for the user provides the WAP gateway of WAP access services just; After the switching, GGSN A points to WAP GW (B), is WAP GW (B) for the user provides the WAP gateway of WAP access services just.
Figure 10 is the method particular flow sheet of interacting user information between WAP gateway and the GGSN in the embodiment of the invention two.As shown in figure 10, this method comprises:
Gateway takes place and switches in step 1002, and GGSN A points to WAP GW (B).
It is transparent that WAP GW switches to the user, and GGSN can initiatively not allow user offline yet, and this moment, the user can continue to send request.
In this step, send in the step 803 of the mode of user profile query messages and concrete user profile query messages and embodiment one identically to GGSN A, just repeat no more here.
In this step, GGSN A returns in the step 804 of the mode of user profile inquiry response and concrete user profile inquiry response and embodiment one identical, just repeats no more here.
So far, the method flow in the present embodiment finishes.Be according to the interacting message schematic diagram of above-mentioned flow process in each inter-entity as shown in figure 11, wherein, MS A inserts WAP gateway by GGSN A, and MSB inserts WAP gateway by GGSN B, and GGSN B is the local GGSN of WAP GW (B).By said process as seen, after WAP gateway switches, can pass through the mode of the purpose WAP gateway active inquiry user temporary resource information of switching, again obtain the user profile in the source WAP gateway of switching, thereby avoid having improved user's experience because the situation that needs the user to reach the standard grade again after switching takes place.
Embodiment three:
In the present embodiment, suppose that WAP gateway switches, change the user of former cause WAP GW (A) service into by WAP GW (B) service, and WAP gateway from the mode that GGSN obtains user's temporary resource information is again: GGSN initiatively sends the mode of user's temporary resource information to WAP gateway.Similar with embodiment one, WAP gateway switches in the present embodiment, and before the switching, GGSN A points to WAP GW (A), is WAPGW (A) for the user provides the WAP gateway of WAP access services just; After the switching, GGSN A points to WAP GW (B), is WAP GW (B) for the user provides the WAP gateway of WAP access services just.
Figure 12 is the method particular flow sheet of interacting user information between WAP gateway and the GGSN in the embodiment of the invention three.As shown in figure 12, this method comprises:
It is transparent that WAP GW switches to the user, GGSN A can initiatively not allow user offline yet, after this, GGSN A determine WAP gateway switch finish after, initiatively send user's temporary resource information to WAP GW (B), the mode that specifically sends this temporary resource information has two kinds.
For first kind of mode, carry out following step during realization:
When step 1203a, GGSN A first user after receiving route exchanging asks, send user's on-line message, and carry user's temporary resource information to WAP GW (B).
In this step, user's on-line message that GGSN A sends is exactly existing user's on-line message Accounting-Request (start), carries user's temporary resource information in this message.
In this case, it also is transparent switching to WAP GW (B), and WAP GW (B) is the user's service of A area.So far, the method flow that GGSN A utilizes first kind of mode to make WAP GW (B) obtain user's temporary resource information in the present embodiment finishes.Be under first kind of mode as shown in figure 13, at the interacting message schematic diagram of each inter-entity, wherein, MS A inserts WAP gateway by GGSN A, and MS B inserts WAP gateway by GGSN B, and GGSN B is the local GGSN of WAP GW (B).
For the second way, when realizing, carry out following steps:
So far, the method flow that GGSN A utilizes the second way to make WAP GW (B) obtain user's temporary resource information in the present embodiment finishes.Be under the second way as shown in figure 14, at the interacting message schematic diagram of each inter-entity, wherein, MS A inserts WAP gateway by GGSN A, and MS B inserts WAP gateway by GGSN B, and GGSN B is the local GGSN of WAP GW (B).
By the specific implementation of present embodiment as seen, under the mode for the gateway switching, can initiatively send the mode of user's temporary resource information by GGSN, make WAP gateway after the switching obtain user's temporary resource information, for the user provides service, thereby needing the user to reach the standard grade again after avoiding WAP gateway to switch can provide the situation of service for the user, improve user's experience.
Method idiographic flow in the foregoing description one～three all can be realized in WAP gateway shown in Figure 6.
To sum up, the WAP gateway that the embodiment of the invention provides and and GGSN between the method for interacting user information, enriched the interface between GGSN and the WAP gateway, improved the mutual flexibility of user profile between GGSN and the WAP gateway, the smooth migration of system when realizing switching mutually between GGSN and the WAP gateway, raising user's perception.Particularly,
1, in same set of GGSN and WAP GW inside, do not have user profile owing to reasons such as information drop-out or network failure cause WAP GW, this moment, WAP GW initiatively initiated query messages.
2, when GGSN and WAP GW switch, WAP GW is initiatively to new GGSN searching user's information.
3, when GGSN and WAP GW switch, GGSN can initiatively report new WAP GW with user profile.
Being preferred embodiment of the present invention only below, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1, the method for exchanging user information between a kind of WAP gateway and the GGSN is characterized in that, this method comprises:
When the user reached the standard grade, the WAP gateway that responsible user inserts received and preserves the temporary resource information that GGSN distributes for the user, for the user provides WAP the access service of application;
When the temporary resource information dropout of preserving in the WAP gateway or carry out WAP gateway when switching, the WAP gateway that current responsible user inserts obtains described temporary resource information from GGSN again.
2, method according to claim 1 is characterized in that, the WAP gateway that described current responsible user inserts obtains described temporary resource information from GGSN again and is:
The WAP gateway that current responsible user inserts sends the user profile query messages to GGSN, and receives the user profile inquiry response that GGSN returns, according to comprising temporary resource information, continue as the access service that the user provides WAP to use.
3, method according to claim 1 is characterized in that, the WAP gateway that described current responsible user inserts obtains described temporary resource information from GGSN again and is:
The WAP gateway that GGSN inserts to current responsible user sends user's temporary resource information, and the WAP gateway that current responsible user inserts continues as the access service that the user provides WAP to use according to the described temporary resource information that GGSN sends.
4, method according to claim 1 is characterized in that, determines that the mode of the temporary resource information dropout of preserving in the WAP gateway is: when WAP gateway receives user that GGSN sends when asking, do not find this user's temporary resource information in WAP gateway.
5, method according to claim 2, it is characterized in that, when the temporary resource information dropout of preserving in the WAP gateway or carry out WAP gateway when switching, the WAP gateway that described current responsible user inserts is respectively the WAP gateway of losing resource information and the purpose WAP gateway of switching, then the WAP gateway that inserts described current responsible user is before GGSN sends the user profile query messages, this method further comprises: user's request that described WAP gateway buffer memory GGSN sends, and, determine the GGSN of this IP address correspondence according to the IP address of terminal in this request;
Describedly send the user profile query messages to GGSN and be: the GGSN to described IP address of terminal correspondence sends the user profile query messages, and in this user profile query messages the IP address of carried terminal and the IP address of GGSN.
6, method according to claim 3, it is characterized in that, after GGSN finds that routing iinformation changes, WAP gateway finished switching, carry out the operation that the described WAP gateway that inserts to current responsible user sends user's temporary resource information during first request after receiving route exchanging of described GGSN.
7, method according to claim 6, it is characterized in that, the WAP gateway that described GGSN inserts to current responsible user sends user's temporary resource information: GGSN sends user's on-line message to the WAP gateway that current responsible user inserts, and carries described user's temporary resource information in this user's on-line message.
8, method according to claim 3, it is characterized in that, after GGSN found that routing iinformation changes, WAP gateway finished switching, described GGSN transmitted at the WAP gateway that inserts to current responsible user and carries out the operation that the described WAP gateway that inserts to current responsible user sends user's temporary resource information when the user asks.
9, method according to claim 8 is characterized in that, the WAP gateway that described GGSN inserts to current responsible user sends user's temporary resource information and is: GGSN is transmitting the temporary resource information of carrying described user when the user asks to described WAP gateway.
10, a kind of WAP gateway is characterized in that, this WAP gateway comprises:
The user profile acquiring unit is used for when the user reaches the standard grade, and receives the temporary resource information that GGSN distributes for the user, and offers described WAP application access unit; And after the notice that receives the transmission of abnormality sensing unit, obtain user's temporary resource information again from GGSN;
The abnormality sensing unit, the temporary resource that is used for determining the user is lost or has been carried out the WAP gateway switching, and notice user profile acquiring unit;
WAP uses access unit, and the user's that provides according to the user profile acquiring unit temporary resource information is provided, the access service that provides WAP to use for the user.
11, a kind of gateway GPRS strong point GGSN is characterized in that this GGSN comprises:
The temporary resource allocation units are used for when the user reaches the standard grade, and the temporary resource information for the user distributes is saved in memory cell, and the notice temporary resource issues the temporary resource that the unit issues this distribution;
Temporary resource issues the unit, is used for after receiving the notice that issues the appointment temporary resource of described temporary resource allocation units, extracts the appointment temporary resource of preserving in the memory cell and also is handed down to the current WAP gateway that this user inserts of being responsible for; Also be used for when the temporary resource that WAP gateway switches or WAP gateway is preserved is lost, issue user's temporary resource information again to the current WAP gateway of being responsible for this user's access;
Memory cell is used to preserve the temporary resource information that the temporary resource allocation units distribute for the user.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102149218A (en) * | 2010-06-23 | 2011-08-10 | 华为技术有限公司 | Method for user information query as well as user information center and gateway device |
| CN102668489A (en) * | 2010-11-24 | 2012-09-12 | 华为技术有限公司 | Methods and network entities for acquiring ip address of user |
| CN103152369A (en) * | 2011-12-07 | 2013-06-12 | 中国移动通信集团浙江有限公司 | Internet access method, system, mobile station, gateway GPRS support node (GGSN) and wireless application protocol (WAP) gateway |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100344128C (en) * | 2004-09-10 | 2007-10-17 | 华为技术有限公司 | Method and system for realizing long-distance disaster, AAA proxy module and server |
| CN1835443A (en) * | 2005-03-18 | 2006-09-20 | 浙江移动通信有限责任公司 | Fees metering method based on mobile internet media stream |
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2007
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102149218A (en) * | 2010-06-23 | 2011-08-10 | 华为技术有限公司 | Method for user information query as well as user information center and gateway device |
| CN102668489A (en) * | 2010-11-24 | 2012-09-12 | 华为技术有限公司 | Methods and network entities for acquiring ip address of user |
| CN102668489B (en) * | 2010-11-24 | 2015-07-08 | 华为技术有限公司 | Methods and network entities for acquiring ip address of user |
| CN103152369A (en) * | 2011-12-07 | 2013-06-12 | 中国移动通信集团浙江有限公司 | Internet access method, system, mobile station, gateway GPRS support node (GGSN) and wireless application protocol (WAP) gateway |
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| CN101399842B (en) | 2012-07-04 |
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