CN101500290B - Method and system for reserving packet data gateway address information - Google Patents
Method and system for reserving packet data gateway address information Download PDFInfo
- Publication number
- CN101500290B CN101500290B CN2008100570067A CN200810057006A CN101500290B CN 101500290 B CN101500290 B CN 101500290B CN 2008100570067 A CN2008100570067 A CN 2008100570067A CN 200810057006 A CN200810057006 A CN 200810057006A CN 101500290 B CN101500290 B CN 101500290B
- Authority
- CN
- China
- Prior art keywords
- address information
- pdn
- user
- user terminal
- clear operation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000000977 initiatory effect Effects 0.000 abstract description 8
- 238000002372 labelling Methods 0.000 description 6
- 238000010295 mobile communication Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000010926 purge Methods 0.000 description 4
- 238000012790 confirmation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a method for reserving address information of a packet data network gateway (PDN GW), comprising the steps: a user-signed server reserves the address information of the dynamic PDN GW used by a user terminal clear of attachment according to a request message for clearing the user terminal sent by a clear operation initiating end; and a clearing mark is set and an acknowledgment message for clearing the user terminal is returned to the clear operation initiating end. The invention also discloses a system for reserving the address information of the PDN GW simultaneously, and the system comprises the clear operation initiating end and the user-signed server. The method and the system for reserving the address information of the PDN GW do not delete the address information of the PDN GW used by the UE clear of attachment in a 3GPP access system or do not mark the address information of the PDN GW to be invalid, therefore, the UE can be continued to be accessed to a network according to the reserved address information of the PDN GW when being switched in a non-3GPP access system or switched from the non-3GPP access system back to the 3GPP access system, thus ensuring the continuity of businesses of the UE when being used among different networks. Simultaneously, the invention has simple realization.
Description
Technical field
The present invention relates to mobile communication technology, be specifically related to a kind of method and system of reserving packet data gateway address information.
Background technology
At present, along with development of Communication Technique, the 3G (Third Generation) Moblie technology reaches its maturity.Universal mobile telecommunications system (Universal Mobile Telecommunications System, UTMS) be to adopt Wideband Code Division Multiple Access (WCDMA) to insert (Wideband Code Division Multiple Access, WCDMA) 3-G (Generation Three mobile communication system) of air interface technologies, this system have adopted and the similar structure of second generation mobile communication system.But, consider the competitiveness of future network, 3GPP has proposed the application demand of a kind of evolution network framework of renewal with mobile network in satisfied 10 years futures or longer time, and this evolvement network can guarantee that 3G network can be smoothly transitted into evolution network framework from the structure of similar second generation mobile communication system.
Generally, evolution packet network (Evolved Packet System mainly comprises in EPS):
Packet data network gateway (Packet Data Network Gateway, PDN GW), PDN GW is the anchor point of user's face, remains unchanged in user's Session Time section.
User's subscribed services device, comprise home subscriber servers (Home Subscriber Server, HSS) or home location register (Home Location Register, HLR), be used to support the user to register and deposit user identity, position data and filtering policy information etc., and the authentication and authorization control information of network insertion of management carry out to(for) the user.
Mobility Management Entity (Mobility Management Entity, MME), be used to preserve MM Context (the Mobility Management Context of UE, MMC), sign, mobility status, tracking area (Tracking Area as the user, TA) information etc., and the user authenticated.
Service universal packet wireless business affair (General Packet Radio Service, GPRS) support node (Serving GPRS Support Node, SGSN) the 2G/3G user of Xiang Lianing can pass through evolved universal terrestrial radio access network (Evolved Universal Terrestrial Access Network, E-UTRAN)/GSM EDGE Radio Access Network network (GSM/EDGE Radio Access Network, GERAN; GSM:Global system for mobile communications, global system for mobile communications; EDGE:Enhanced data rates for GSM evolution, the enhanced data rates of GSM evolution) access SGSN.Described MME and SGSN also are collectively referred to as the user mobility management control entity usually.
The framework of above-mentioned evolvement network can be realized the compatibility to 2G/3G, therefore can realize the smooth upgrade by the network architecture.As seen, at UMTS in the process of evolution network framework transition, can there be the quite a long time simultaneously in network based on these two kinds of frameworks, during this period of time, certainly exist since terminal at the switching problem that moves between 3GPP connecting system and non-3GPP connecting system between the heterogeneous networks brought.
When UE activates a plurality of EPS carrying in the 3GPP connecting system, MME or SGSN will notify the employed PDN GW of this UE of HSS/HLR address information, the PDN address information comprises APN (Access Point Name, APN) and Internet protocol (InternetProtocol, IP) address of corresponding PDN GW.When UE switches to non-3GPP connecting system, UE will be by attachment removal (Detach) in the 3GPP connecting system, after after a while, MME or SGSN can send to HSS/HLR and remove (Purge) message, HSS/HLR then can identify this UE and be eliminated, represent that this UE is in inaccessible state, delete this UE employed PDN GW address information in the 3GPP connecting system simultaneously.
Defined the Purge process of being initiated by MME or SGSN in the existing standard, flow process comprises as shown in Figure 1:
Step 101: behind the subscription data and MMC of the UE that deletes an attachment removal, MME or SGSN send Purge UE message to HSS/HLR, carry IMSI International Mobile Subscriber Identity (International Mobile Subscriber Identity in this message, IMSI), be used to identify the identity that is eliminated the user.
It is invalid that step 102:HSS/HLR deletes the PDN GW address information of this UE or identifies this PDN GW address information.
Step 103:HSS/HLR is provided with UE Purged for E-UTRAN sign, and replys PurgeUE Ack message and give MME or SGSN.
After HSS/HLR removes the employed PDN GW of described UE address information, this UE promptly is in inaccessible state at this moment for HSS/HLR, because PDN GW is the anchor point of user's face, in the Session Time section of UE, remain unchanged, therefore when described PDN GW address information deleted or identify invalid after, if UE enters non-3GPP connecting system and when switching from the 3GPP connecting system non-3GPP connecting system, target authentication mandate in the non-3GPP connecting system and accounting server (AAA Server) need be inquired about the employed PDN GW of this UE address information to described HSS/HLR, and since described address information deleted or identify invalid, therefore HSS/HLR can't pass to described AAA Server with the PDN GW address information that this UE uses, cause the UE can't access network, thereby make the handoff failure of UE in non-3GPP connecting system.
Similarly, when UE switches when getting back to the 3GPP connecting system from non-3GPP connecting system, because of described address information deleted or identify invalid, this UE is identified as unreachable in HSS/HLR, HSS/HLR can't pass to the PDN GW address information that this UE uses target MME or the target SGSN in the 3GPP connecting system, cause the UE can't access network, can cause handoff failure equally.
Summary of the invention
The embodiment of the invention provides a kind of method of the PDN of reservation GW address information, can guarantee that UE can use business continuously when switching.
For achieving the above object, technical scheme of the present invention specifically is achieved in that
A kind of method of reserving packet data gateway PDN GW address information, this method comprises:
The removing user terminal requests message that user's subscribed services device sends according to the clear operation originating end, keep attachment removal the employed dynamic PDN GW of user terminal address information or keep the sign of described PDN GW address information effective;
Be provided with and remove sign and return removing user terminal acknowledge message to the clear operation originating end.
A kind of system of reserving packet data gateway PDN GW address information, this system comprises clear operation originating end and user's subscribed services device;
Described clear operation originating end sends and removes user terminal requests message to user's subscribed services device;
Described user's subscribed services device receives described request message, keep attachment removal the employed dynamic PDN GW of user terminal address information or keep the sign of described PDN GW address information effective; Be provided with and remove sign and send removing user terminal acknowledge message to described clear operation originating end.
As seen from the above technical solutions, the method and system of this reservation PDN GW address information of the embodiment of the invention, do not delete in the 3GPP connecting system by the UE of attachment removal employed PDN GW address information or be not invalid described PDN GW address information labelling, make UE in non-3GPP connecting system, switch or when switching back the 3GPP connecting system by non-3GPP connecting system, can continue access network according to the PDN GW address information that keeps, thereby guaranteed UE in the continuity of heterogeneous networks chien shih time spent, the present invention simultaneously realizes simply.
Description of drawings
Fig. 1 is the Purge process schematic diagram that MME/SGSN initiates in the prior art.
Fig. 2 is the schematic flow sheet that reserving packet data closes the method for address information in the embodiment of the invention.
Fig. 3 is when initiating clear operation by MME in the embodiment of the invention, keeps the schematic flow sheet of the method for PDN GW address information.
Fig. 4 is when initiating clear operation by SGSN in the embodiment of the invention, keeps the schematic flow sheet of the method for PDN GW address information.
Fig. 5 is when initiating clear operation by AAA Server in the embodiment of the invention, keeps the schematic flow sheet of the method for PDN GW address information.
Fig. 6 is the composition schematic diagram that reserving packet data closes the system of address information in the embodiment of the invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
The method that the embodiment of the invention provides a kind of reserving packet data to close address information, flow process as shown in Figure 2, comprising:
Step 201: the clear operation originating end sends removes user terminal requests message to user's subscribed services device.
Wherein, described clear operation originating end comprises: MME, SGSN or AAA Server.
Step 202: described user's subscribed services device receives described request message, keeps the address information of the employed dynamic PDN GW of UE of attachment removal.
Wherein, the method for the address information of the employed dynamic PDN GW of the UE of described reservation attachment removal is:
Keep attachment removal the employed dynamic PDN GW of user terminal UE address information or keep the sign of described PDN GW address information effective.
Step 203: described user's subscribed services device is provided with removes sign.
Described removing sign according to the difference of clear operation originating end present position, is divided into two kinds of situations:
When clear operation originating end during at the 3GPP connecting system, described removing is designated UE Purgedfor 3GPP PS, and when clear operation originating end during at non-3GPP connecting system, described removing sign then is UE Purged for Non-3GPP.
Step 204: described user's subscribed services device sends to the clear operation originating end and removes the user terminal acknowledge message.
As seen, the embodiment of the invention is not deleted the UE employed PDN GW address information of attachment removal in the 3GPP connecting system or is not invalid with described PDN GW address information labelling in the Purge process, make the UE that switches to continue access network according to the employed dynamic PDN GW address information of this user terminal that keeps in described user's subscribed services device, therefore guaranteed the continuity of UE business.
Below by specific embodiment, the concrete implementation under the various different situations is described in further detail:
Embodiment one
UE after the MME attachment removal, when initiating clear operation by MME, the flow process of the method for described reservation PDN GW address information as shown in Figure 3, comprising:
Step 301:MME sends and removes user terminal requests message to HSS/HLR.
Described removing user terminal requests message is Purge UE message, carries the IMSI sign in this message, is used to identify the identity that is eliminated the user.
Step 302:HSS/HLR receives described request message, keeps the address information of the dynamic PDN GW that attachment removal UE uses or keeps the address information labelling of described PDN GW effective.
Step 303:HSS/HLR is provided with and removes sign UE Purged for 3GPP PS.
Step 304:HSS/HLR replys clear confirmation message to MME.
Embodiment two
UE initiates clear operation by SGSN after the SGSN attachment removal, the flow process of the method for described reservation PDN GW address information as shown in Figure 4, comprising:
Step 401:SGSN sends and removes user terminal requests message to HSS/HLR.
Described removing user terminal requests message is Purge MS message, carries the IMSI sign in this message, is used to identify the identity that is eliminated the user.
Step 402:HSS/HLR receives described request message, keeps the address information of the dynamic PDN GW that described attachment removal UE uses or keeps the address information labelling of described PDN GW effective.
Step 403:HSS/HLR is provided with and removes sign UE Purged for 3GPP PS.
Step 404:HSS/HLR replys clear confirmation message to SGSN
Embodiment three
UE after the AAA Server attachment removal of non-3GPP connecting system, when initiating clear operation by AAA Server, the flow process of the method for described reservation PDN GW address information as shown in Figure 5, comprising:
Step 501:AAA Server sends and removes user terminal requests message to HSS/HLR.
Described removing user terminal requests message is Purge UE (NAI) message.
Step 502:HSS/HLR receives described request message, keeps the address information of the dynamic PDN GW that attachment removal UE uses or keeps the address information labelling of described PDN GW effective.
Step 503:HSS/HLR is provided with and removes sign UE Purged for Non-3GPP.
Step 504:HSS/HLR replys clear confirmation message to AAA Server.
Need to prove that the PDN GW address information in the various embodiments described above comprises: the IP address of APN that before attachment removal, is using by all these UE that serve the SGSN of UE or MME or AAA Server and provided and corresponding PDN GW thereof.
By as seen above-mentioned, the method of the reservation PDN GW address information that the embodiment of the invention provides, in user's subscribed services device, keep by the UE of attachment removal employed PDN GW address information or keep the address information labelling of described PDN GW effective, make this UE in non-3GPP connecting system, switch or switch when getting back to the 3GPP connecting system by non-3GPP connecting system, can continue access network according to described PDN GW address information, thereby guaranteed UE in the continuity of heterogeneous networks chien shih time spent, this method realizes simple simultaneously.
The present invention also provides a kind of system of the PDN of reservation GW address information simultaneously, and it forms structure as shown in Figure 6, and this system comprises: clear operation originating end and user's subscribed services device;
Described clear operation originating end sends and removes user terminal requests message to user's subscribed services device; Described clear operation originating end can be SGSN or MME or AAA Server, and described user's subscribed services device is HSS/HLR.
Described user's subscribed services device receives the request message that described clear operation originating end sends, the address information of the dynamic PDN GW that the UE of reservation attachment removal uses; Be provided with and remove sign and return removing user terminal acknowledge message to described clear operation originating end.
By as seen above-mentioned, the system of the reservation PDN GW address information that the embodiment of the invention provides, in user's subscribed services device, keep by the employed PDN GW of the UE of attachment removal address information, make this UE in non-3GPP connecting system, switch or switch when getting back to 3G network by non-3G network, can continue access network according to the PDN GW address information that keeps, thereby guaranteed UE professional continuity of using when carrying out the network switching, this system configuration is simple simultaneously.
Therefore; understand easily, the above is preferred embodiment of the present invention only, is not to be used to limit spirit of the present invention and protection range; equivalent variations that any those of ordinary skill in the art made or replacement all should be considered as being encompassed within protection scope of the present invention.
Claims (8)
1. the method for a reserving packet data gateway PDN GW address information is characterized in that this method comprises:
The removing user terminal requests message that user's subscribed services device sends according to the clear operation originating end, keep attachment removal the employed dynamic PDN GW of user terminal address information or keep the sign of described PDN GW address information effective;
Be provided with and remove sign and return removing user terminal acknowledge message to the clear operation originating end.
2. method according to claim 1 is characterized in that, the address information of described dynamic PDN GW comprises: the internet protocol address of the PDNGW of APN that uses before the user terminal attachment removal of described attachment removal and correspondence thereof.
3. method according to claim 1 is characterized in that, further comprises:
User terminal continues access network according to the employed dynamic PDN GW address information of this user terminal that keeps in described user's subscribed services device.
4. according to claim 1,2 or 3 described methods, it is characterized in that described clear operation originating end comprises: service universal packet wireless business affair support node or Mobility Management Entity or Certificate Authority and accounting server.
5. according to claim 1,2 or 3 described methods, it is characterized in that described user's subscribed services device comprises home subscriber servers or home location register.
6. the system of a reserving packet data gateway PDN GW address information is characterized in that, this system comprises clear operation originating end and user's subscribed services device;
Described clear operation originating end sends and removes user terminal requests message to user's subscribed services device;
Described user's subscribed services device receives described request message, keep attachment removal the employed dynamic PDN GW of user terminal address information or keep the sign of described PDN GW address information effective; Be provided with and remove sign and send removing user terminal acknowledge message to described clear operation originating end.
7. system according to claim 6 is characterized in that, described user's subscribed services device comprises home subscriber servers or home location register.
8. according to claim 6 or 7 described systems, it is characterized in that described clear operation originating end comprises service universal packet wireless business affair support node or Mobility Management Entity or Certificate Authority and accounting server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100570067A CN101500290B (en) | 2008-01-28 | 2008-01-28 | Method and system for reserving packet data gateway address information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100570067A CN101500290B (en) | 2008-01-28 | 2008-01-28 | Method and system for reserving packet data gateway address information |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101500290A CN101500290A (en) | 2009-08-05 |
| CN101500290B true CN101500290B (en) | 2010-11-10 |
Family
ID=40947112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100570067A Active CN101500290B (en) | 2008-01-28 | 2008-01-28 | Method and system for reserving packet data gateway address information |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101500290B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800969B (en) * | 2009-02-10 | 2013-10-02 | 华为技术有限公司 | PDN (Packet Data NetWork) gateway (GW) information management method, relevant equipment and system |
| CN102056204B (en) * | 2009-10-30 | 2013-11-06 | 中兴通讯股份有限公司 | Method and system for realizing logout of user terminal |
| CN102238517B (en) * | 2010-04-26 | 2015-10-21 | 中兴通讯股份有限公司 | Machine-type communication event report method, Apparatus and system |
| CN102348193B (en) * | 2010-07-28 | 2016-06-15 | 中兴通讯股份有限公司 | The method and system that a kind of gateway identification reports |
| CN102421168B (en) * | 2010-09-28 | 2014-12-10 | 中兴通讯股份有限公司 | Methods for realizing calling and called services as well as mobile subscriber elimination and subscription server |
| CN104010346A (en) * | 2013-02-25 | 2014-08-27 | 中兴通讯股份有限公司 | Mobile terminal access method and device thereof |
| CN104717600B (en) * | 2013-12-16 | 2019-12-10 | 中兴通讯股份有限公司 | M2M terminal/terminal peripheral accessibility management method and equipment |
| US11089519B2 (en) * | 2016-04-13 | 2021-08-10 | Qualcomm Incorporated | Migration of local gateway function in cellular networks |
-
2008
- 2008-01-28 CN CN2008100570067A patent/CN101500290B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101500290A (en) | 2009-08-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101500290B (en) | Method and system for reserving packet data gateway address information | |
| EP2104278B1 (en) | Method for establishing resource during handover | |
| US8041361B2 (en) | Method and device of network resource release processing | |
| CN101478743B (en) | Method and apparatus for EPS bearing management | |
| CN101582777B (en) | Method and device for acquiring policy and charging control rule | |
| US20110200010A1 (en) | Method, System, and Device for Network Handoff | |
| CN103987092A (en) | Method and device for selecting network device in switching process | |
| EP2259657A1 (en) | Method for indicating the bearer management of the service gateway | |
| CN101459951A (en) | Method and system for bearing binding and event reporting function policy control | |
| CN101998357A (en) | Network management circuit switched voice falling method and system | |
| CN101500222B (en) | Method, apparatus and system for implementing UE detachment | |
| CN100426777C (en) | System and method for accessing 3GPP deductive network by non-3GPP technology | |
| CN100484290C (en) | Method for realizing PDP address distribution in service cut-in | |
| CN102238727A (en) | Method, device and system for selecting packet data network gateway (PDN GW) node | |
| CN101483899B (en) | Method, system and network anchor point for initiating source network bearing release in switching process | |
| CN101400093B (en) | Method and system for distributing interRAT-offset | |
| CN102348193A (en) | Gateway identifier reporting method and system thereof | |
| CN101541055B (en) | Method for sending, deleting and updating gateway address of packet data network | |
| CN101494882B (en) | Method for implementing ISR during switching process, network element equipment and network system | |
| CN101945365B (en) | Method and system for switching emergency session | |
| US11997697B2 (en) | Method and network device for creating and deleting resources | |
| CN101472264A (en) | Method, device and system for processing network switch abolition | |
| WO2016112774A1 (en) | Position update method and mobility management unit | |
| EP2023687A1 (en) | Method and device for utilizing at least one CS service and communication system comprising such device | |
| CN101873721A (en) | Method and device for releasing IPv4 address of user equipment (UE) and resource thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: INST OF TELECOMMUNICATION SCIENCE AND TECHNOLGOY Free format text: FORMER OWNER: DATANG MOBILE COMMUNICATION EQUIPMENT CO., LTD. Effective date: 20110711 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100083 NO. 29, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING TO: 100191 NO. 40, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110711 Address after: 100191 Haidian District, Xueyuan Road, No. 40, Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100083 Haidian District, Xueyuan Road, No. 29, Patentee before: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210531 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |