CN100411385C - Data transmission method when routing area updates - Google Patents
Data transmission method when routing area updates Download PDFInfo
- Publication number
- CN100411385C CN100411385C CNB2004100584502A CN200410058450A CN100411385C CN 100411385 C CN100411385 C CN 100411385C CN B2004100584502 A CNB2004100584502 A CN B2004100584502A CN 200410058450 A CN200410058450 A CN 200410058450A CN 100411385 C CN100411385 C CN 100411385C
- Authority
- CN
- China
- Prior art keywords
- sgsn
- tunnel
- address
- pdp context
- old
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The present invention discloses a data transmission method when a routing area is updated. When routing area update among SGSNs occurs, a new SGSN to which a new routing area belongs is requested by an MS to obtain PDP contexts from an old SGSN to which an old routing area belongs. The method further comprises the following procedures that each PDP context is allocated with a tunnel after the PDP contexts sent by the old SGSN is received by the new SGSN, an IP address in the corresponding PDP context of the tunnel is arranged for each tunnel, and then the coincidence relation of the allocated tunnel and the IP address is sent to the old SGSN; the corresponding data of each PDP context are sent to the new SGSN by the old SGSN through the corresponding tunnel. The problem that data can only be sent to a unique IP address by the old SGSN in the prior art so that the new SGSN relates to the arrangement of a distribution module for distributing the data is solved by the proposal of the present invention. The data transmission of a user side is more flexible when the routing area is updated among the SGSNs by the proposal of the present invention, system design is simplified and the update time of the routing area is shortened.
Description
Technical field
The present invention relates to 3-G (Generation Three mobile communication system) (3GPP) technical field, relate to or rather a kind of between service universal grouping wireless business supporting node (SGSN) data transmission method during Routing Area Update.
Background technology
Adopt among the 3GPP of Wideband Code Division Multiple Access (WCDMA) (WCDMA) air interface technologies, comprise Radio Access Network (RAN, Radio Access Network) and core network (CN, Core Network).Wherein, core net is from being divided into circuit domain (CS, Circuit Switched Domain) and packet domain (PS, Packet Switched Domain) in logic.The GPRS Support Node (GSN) that comprises SGSN and Gateway GPRS Support Node (GGSN) belongs to the PS territory in the core net.
SGSN is the functional node in the WCDMA core net PS territory, this node links to each other with radio network controller (RNC), GGSN, attaching position register/AUC (HLR/AUC), mobile switching center network elements such as (MSC/VLR) by interface, and links to each other with other SGSN by the Gn/Gp interface.SGSN mainly provides the functions such as routing forwarding, mobile management, session management, authentication and encryption in PS territory.
All there is packet data protocol (PDP) context travelling carriage in the network (MS), SGSN and GGSN inside, and PDP Context is the ensemble of communication that a session is preserved.Wherein, the common name of the PDP agreement variety of protocol that to be packet data package transmit with discrete form is such as, IP agreement, agreement etc. X.25.The PDP agreement can be used for mutual between external data network and the core net and between the different core network.
Detect and self entered a new route district when being in MS under the GPRS attachment state, or the Routing Area Update timer in cycle is when overflowing, MS can carry out the Routing Area Update flow process.Wherein, if the old and new's route district is not in same SGSN inside, then can carry out the Routing Area Update between the SGSN.
The inter-SGSN routing area update handling process specifically as shown in Figure 1, corresponding following steps:
Steps A 1, MS are when the Routing Area Update that takes place between SGSN, and the SGSN under new route district also is that new SGSN sends Routing Area Update request (Routing Area Update Request).
Step B1, new SGSN by the SGSN under the district, also are that old SGSN sends SGSN context request (SGSN Context Request) to the old road after the request of receiving, with the MM context that obtains this MS from old SGSN and the PDP Context of activation.
Step C1, old SGSN return the SGSN context response information (SGSN Context Request) that carries MM context and PDP Context to new SGSN after receiving this request.
Step D1, new SGSN carry out safety inspection after receiving response message, if the safety inspection failure is then notified MS current Routing Area Update failure, and carried failure cause; If by safety inspection, then carry out subsequent step.
Step e 1, new SGSN send the SGSN context to old SGSN and inform message (SGSN Context Acknowledge Message) after safety inspection is passed through, and to notify old SGSN, this SGSN has prepared to have received data.
Informing that new SGSN is sent carries in the message certainly as old SGSN IP address allocated and tunnel.Wherein, for the PDP Context of each activation, new SGSN can provide the cell (IE) of a Tunnel End Point Identifier (TEID) II for it, but the IP address that is used to receive data has only one.
The tunnel that step F 1, old SGSN are distributed by new SGSN with transfer of data to IP address that new SGSN provided.
Old SGSN is corresponding with PDP Context by the data of each tunnel transmission.
By above-mentioned flow process, the transmission of data in the time of can finishing inter-SGSN routing area update.
In the above-mentioned processing procedure, though PDP Context for each activation, new SGSN is that it has distributed a TEID II who is used for transmission user face data, but new SGSN only provides an IP address that is used to receive data to old SGSN, and this has just brought more limitation.
Specifically, according to GPRS Tunnel Protocol (GTP) agreement, a user can have a plurality of PDP Contexts, and each PDP Context may corresponding different IP address, it is so obvious more flexible: when reality is used, PDP Context can be distributed in arbitrarily in the Different Logic entity of SGSN, the physical interface of each logic entity, also be that the IP address also can be different, the data corresponding with PDP Context are transmitted by the pairing SGSN IP of this PDP Context address and are got final product among the old SGSN, are independent of each other between each data in this transmission means.In addition,, user's PDP Context is assigned to each IP address equably, can also utilizes interface band width resource substantially from the angle of resource allocation.Especially for some high-end user, this user may activate a plurality of PDP Contexts, and the pairing data of each PDP Context may take big bandwidth, at this moment, best mode obviously is the mode that takies by computational resource dynamically, PDP Context is assigned on the different IP addresses, thereby makes the pairing data of PDP Context be transferred on the corresponding different IP addresses, to maximally utilise bandwidth.
According to such scheme, when between SGSN, carrying out routing update, new SGSN only receives the IP address for all data are provided with one, and in the design of GTP agreement, the PDP Context of new SGSN inside be can be corresponding different the IP address, so such scheme produces conflict with the design of GTP agreement possibly.Below issuable conflict between the two is described in detail.
If the IP address that all PDP Contexts that old SGSN sends carry is all identical, this IP address is the address that receives all PDP Context corresponding datas.New SGSN is placed on this IP address and informs in the message that old SGSN can be transferred to all data this IP address, and new SGSN can finish the reception of data by this IP address.In this case, an IP address only is set and realizes transfer of data fully.
But, if the IP address difference that these PDP Contexts carry, what then new SGSN sent informs that the IP address in the message at most can only be identical with the IP address in some or certain several PDP Context, such as, three PDP Contexts 1 that old SGSN sends, 2 and 3 entrained addresses are respectively IP1, IP2 and IP3, the address of carrying in the message of informing of new SGSN is IP1, that is to say, this informs that the IP address in the message is only corresponding with PDP Context 1, like this, though old SGSN has sent to new SGSN by the tunnel with all data, but in fact have only the data of PDP Context 1 correspondence directly to receive by IP1, data for PDP Context 2 and 3 correspondences do not send to corresponding IP address.
In light of this situation, then need in new SGSN, a distribution module be set, with the IP address of this distribution module as informing the IP address of carrying in the message, distribution module is after receiving the data that old SGSN sends by different tunnels, again according to the corresponding relation of this tunnel and PDP Context, the data that each tunnel is sent send to the entrained IP address of corresponding PDP Context, and this process specifically as shown in Figure 2.Obviously, this processing procedure can increase the complexity of new SGSN.
In addition, between SGSN and the RNC and the interface between SGSN and the GGSN in transmission during data, SGSN provides a plurality of IP the address for it, if SGSN only provides an IP address to other SGSN, make between the SGSN and SGSN and other network element between treatment mechanism different.
Summary of the invention
In view of this, the data transmission method when main purpose of the present invention is to provide a kind of Routing Area Update, with when the Routing Area Update that carries out between SGSN, old SGSN can be directly with the corresponding IP address of transfer of data in the new SGSN.
For reaching above purpose, data transmission method when technical scheme of the present invention is achieved in that a kind of Routing Area Update, mobile station MS is when the Routing Area Update that takes place between service universal grouping wireless business supporting node SGSN, ask the affiliated new SGSN in new route district to obtain the packet data protocol PDP Context from the old road by the old SGSN under the district, this method further may further comprise the steps:
A. new SGSN is after receiving the PDP Context that old SGSN sends, for each PDP Context distributes the tunnel, and, afterwards the tunnel that distributed and the corresponding relation of IP address are sent to old SGSN for each tunnel is provided with IP address in the corresponding PDP Context in this tunnel;
B. old SGSN is according to the corresponding relation of tunnel and IP address, and the data of each PDP Context correspondence are sent to corresponding IP address among the new SGSN by corresponding tunnel.
Among the described step a, described new SGSN further comprises after receiving the PDP Context that old SGSN sends: carry out safety inspection, if safety inspection is passed through, then carry out subsequent step; Otherwise the Routing Area Update failure that notice MS is current finishes afterwards.
Described step b comprises: old SGSN is according to the corresponding relation of the IP address in the PDP Context and tunnel and IP address, be identified for transmitting the tunnel of each PDP Context corresponding data, by this tunnel these data sent among the new SGSN and this tunnel corresponding IP address afterwards.
Among the described step a, described new SGSN informs that by the SGSN context message sends to old SGSN with the corresponding relation of tunnel and IP address.
The tunnel that described new SGSN distributes is the cell of Tunnel End Point Identifier.
The present invention is provided with corresponding IP address by new SGSN for every the tunnel that distributes, make old SGSN directly data to be sent to corresponding IP address among the new SGSN by the tunnel, thereby make the transmission of user face data when carrying out Routing Area Update between SGSN more flexible, even a plurality of PDP Contexts are on different logic OR physical entities, switching and discharge device in the middle of also need not being provided with in new SGSN have been simplified the design of system.
When carrying out Routing Area Update between SGSN based on the present invention program, old SGSN can directly be transferred to corresponding IP address by a plurality of tunnels with data simultaneously, improve the data forwarding efficient between SGSN, shortened the time of Routing Area Update, thereby improved user's satisfaction.
In addition, the present invention program also realized with between the interface between the SGSN and SGSN and the RNC and the interface between SGSN and the GGSN be consistent, and make the data processing between the old and new SGSN and the design of GTP agreement be consistent.
Description of drawings
Fig. 1 is the handling process of present inter-SGSN routing area update;
Fig. 2 is the transfer of data schematic diagram between present the old and new SGSN;
Fig. 3 is the transfer of data schematic diagram between the old and new SGSN among the present invention program.
Embodiment
In handling process shown in Figure 1, even the SGSN context that sends to old SGSN at new SGSN is informed a plurality of SGSN IP address is set directly in the message, according to original design, old SGSN may ignore this and inform all IP addresses except that first IP address in the message.In light of this situation, below in conjunction with drawings and the specific embodiments the present invention program is described in further detail.
The present invention program informs at the SGSN context of new SGSN a plurality of SGSN IP address is set in the message, these IP addresses are the IP address that PDP Context carries, and each IP address and the corresponding relation of new SGSN at the IE of the TEID II of each PDP Context distribution are set.Like this, when the Routing Area Update that carries out between SGSN, new and old two SGSN just can be simultaneously by carrying out the forwarding of PDP Context based on a plurality of tunnels of different IP addresses, specifically, be exactly that old SGSN is when sending the pairing data of each PDP Context, can determine corresponding tunnel according to the IP address in the PDP Context of this data correspondence earlier, then data directly be sent to pairing IP address, this tunnel by this tunnel.This transmission course as shown in Figure 3.
Based on the present invention program's processing, the corresponding following steps of flow process shown in Figure 1:
Steps A 2, MS send RoutingArea Update Request to new SGSN when the Routing Area Update that takes place between SGSN.
Step B2, new SGSN send SGSN ContextRequest to old SGSN after the request of receiving.
Step C2, old SGSN send SGSN ContextRequest to new SGSN after receiving this request, carry MM context and PDP Context in this response message.
Step D2, new SGSN carry out safety inspection after receiving response message.
Step e 2, new SGNS send SGSN ContextAcknowledge Message to old SGSN after by safety inspection, notify old SGSN to transmit data.
In this step, new SGSN need distribute the tunnel for each PDP Context, and corresponding IP address is set for each tunnel, and set IP address is the IP address in the PDP Context, then with the correspondence setting of the tunnel that distributed and IP address in SGSN Context AcknowledgeMessage.
Step F 2, old SGSN arrive corresponding IP address by the tunnel that new SGSN distributes with transfer of data.
In this step, old SGSN is before the transmission data, at first need to be identified for transmitting the tunnel of these data, specifically, can determine to receive the IP address of these data according to the PDP Context of this data correspondence, determine this pairing tunnel, IP address then, by this tunnel transfer of data is arrived this IP address more afterwards.
The above only is the present invention program's preferred embodiment, not in order to limit protection scope of the present invention.
Claims (5)
1. the data transmission method a during Routing Area Update, mobile station MS is when the Routing Area Update that takes place between service universal grouping wireless business supporting node SGSN, ask the affiliated new SGSN in new route district to obtain the packet data protocol PDP Context from the old road by the old SGSN under the district, it is characterized in that this method further may further comprise the steps:
A. new SGSN is after receiving the PDP Context that old SGSN sends, for each PDP Context distributes the tunnel, and, afterwards the tunnel that distributed and the corresponding relation of IP address are sent to old SGSN for each tunnel is provided with IP address in the corresponding PDP Context in this tunnel;
B. old SGSN is according to the corresponding relation of tunnel and IP address, and the data of each PDP Context correspondence are sent to corresponding IP address among the new SGSN by corresponding tunnel.
2. method according to claim 1 is characterized in that among the described step a, and described new SGSN further comprises after receiving the PDP Context that old SGSN sends: carry out safety inspection, if safety inspection is passed through, then carry out subsequent step; Otherwise the Routing Area Update failure that notice MS is current finishes afterwards.
3. method according to claim 1, it is characterized in that, described step b comprises: old SGSN is according to the corresponding relation of the IP address in the PDP Context and tunnel and IP address, be identified for transmitting the tunnel of each PDP Context corresponding data, by this tunnel these data sent among the new SGSN and this tunnel corresponding IP address afterwards.
4. method according to claim 1 is characterized in that among the described step a, and described new SGSN informs that by the SGSN context message sends to old SGSN with the corresponding relation of tunnel and IP address.
5. method according to claim 1 is characterized in that, the tunnel that described new SGSN distributes is the cell of Tunnel End Point Identifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100584502A CN100411385C (en) | 2004-08-16 | 2004-08-16 | Data transmission method when routing area updates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100584502A CN100411385C (en) | 2004-08-16 | 2004-08-16 | Data transmission method when routing area updates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1738289A CN1738289A (en) | 2006-02-22 |
| CN100411385C true CN100411385C (en) | 2008-08-13 |
Family
ID=36080951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100584502A Expired - Fee Related CN100411385C (en) | 2004-08-16 | 2004-08-16 | Data transmission method when routing area updates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100411385C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100461927C (en) * | 2006-07-14 | 2009-02-11 | 华为技术有限公司 | Application based on terminal switch-in attribute realizing method |
| CN101267303B (en) * | 2007-03-13 | 2012-07-04 | 中兴通讯股份有限公司 | Communication method between service nodes |
| CN101136853B (en) * | 2007-09-27 | 2012-04-25 | 华为技术有限公司 | Data routing method |
| CN101282511B (en) * | 2008-05-16 | 2011-07-13 | 中兴通讯股份有限公司 | Bearing processing method |
| CN101577680B (en) * | 2009-06-19 | 2011-08-17 | 福建星网锐捷网络有限公司 | Updating method, device and system of tunnel routing information |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243628A (en) * | 1997-01-20 | 2000-02-02 | 诺基亚电信公司 | Routing area updating in packet radio network |
| CN1256060A (en) * | 1998-02-10 | 2000-06-07 | 诺基亚网络有限公司 | Reduction of signalling load in packet radio network |
| WO2000079808A2 (en) * | 1999-06-21 | 2000-12-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Method of handing over mobile stations in a general packet radio service (gprs) radio telecommunications network |
| US20010019544A1 (en) * | 1997-12-30 | 2001-09-06 | Telefonaktiebolaget Lm Ericsson | Method for improving the handing over a connection from one SGSN to another SGSN |
| KR20040069687A (en) * | 2003-01-30 | 2004-08-06 | 에스케이 텔레콤주식회사 | SRNS Relocation Method of Pre-Paid Service |
-
2004
- 2004-08-16 CN CNB2004100584502A patent/CN100411385C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243628A (en) * | 1997-01-20 | 2000-02-02 | 诺基亚电信公司 | Routing area updating in packet radio network |
| US20010019544A1 (en) * | 1997-12-30 | 2001-09-06 | Telefonaktiebolaget Lm Ericsson | Method for improving the handing over a connection from one SGSN to another SGSN |
| CN1256060A (en) * | 1998-02-10 | 2000-06-07 | 诺基亚网络有限公司 | Reduction of signalling load in packet radio network |
| WO2000079808A2 (en) * | 1999-06-21 | 2000-12-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Method of handing over mobile stations in a general packet radio service (gprs) radio telecommunications network |
| KR20040069687A (en) * | 2003-01-30 | 2004-08-06 | 에스케이 텔레콤주식회사 | SRNS Relocation Method of Pre-Paid Service |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1738289A (en) | 2006-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101473679B (en) | Apparatus and method for transferring PDP context information for a terminal in the case of intersystem handover | |
| CN107548127B (en) | Method and apparatus for supporting data transmission | |
| US9185595B2 (en) | Method, apparatus and system for moving wireless terminals in mobility management serving node pool | |
| CN101499967B (en) | Circuit domain call implementing method and system | |
| KR100827136B1 (en) | Method for signaling connection assignment in a mobile communication system | |
| CN113163440B (en) | Establishment method of forward interface, UE access method, UE switching method and device | |
| CN101877860B (en) | The transmission method of via node, gateway, relay data and system | |
| CN100583905C (en) | Mobile terminal IP address distributing method | |
| US20070213058A1 (en) | Method and apparatus for supporting handoff and serving radio network subsystem relocation procedures in a single tunnel gprs-based wireless communication system | |
| CN102421152B (en) | Method and device for identifying bearing type | |
| CN101115292B (en) | Method for paging and connecting terminal and terminal and system for fast activating data transmission | |
| CN101005692A (en) | Method for reducing terminal switch between LTE and 3G cut-in technology | |
| CN105392153A (en) | Communication system, method and device | |
| CN102123378B (en) | Method for switching terminal and corresponding communication network | |
| CN101026861A (en) | Method for establishing connection between mobile station and evolution packet core network | |
| CN101365159B (en) | Bearing identification processing method and apparatus | |
| CN1997208B (en) | Method for power on and attachment access of the user device in the mobile communication system | |
| CN102026145A (en) | Local IP access method and system | |
| EP1439724A1 (en) | Mobile communication system | |
| CN1849004B (en) | Position switching method and apparatus | |
| CN101442715B (en) | Method, apparatus and system implementing GPRS network flat architecture | |
| CN100411385C (en) | Data transmission method when routing area updates | |
| CN102014448B (en) | Business flow binding method, equipment and system | |
| CN100576954C (en) | Determine method and device based on the position mobility of idle state customer terminal | |
| CN101784033A (en) | Processing method, processing device and processing system for switching data forwarding |
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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080813 Termination date: 20130816 |