CN101330425B - Method for establishing tunnel from SGSN to service gateway - Google Patents
Method for establishing tunnel from SGSN to service gateway Download PDFInfo
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- CN101330425B CN101330425B CN2007101276305A CN200710127630A CN101330425B CN 101330425 B CN101330425 B CN 101330425B CN 2007101276305 A CN2007101276305 A CN 2007101276305A CN 200710127630 A CN200710127630 A CN 200710127630A CN 101330425 B CN101330425 B CN 101330425B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/22—Manipulation of transport tunnels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/12—Setup of transport tunnels
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Abstract
The invention discloses a method for constructing a tunnel from a SGSN to a Serving GW, which comprises the following steps: a mobility management entity notifies the SGSN of a change of the Servicing GW and the IP address of the new Servicing GW; the SGSN sends a request of creating a new load to the servicing GW, wherein the request is used for asking for creating a user plane tunnel; the new servicing GW allocates the ID of the user plane tunnel and sends a new transport creation response back to the SGSN in respond to the request of creating the new load. The method can ensure the effectiveness of the Signaling Free mechanism in an idle state.
Description
Technical field
The present invention relates to the communications field, and especially, (Serving GPRS Support Node is SGSN) to the method for building up in the tunnel of gateway to relate to a kind of GPRS Support Node.
Background technology
Along with global microwave access intercommunication (World Interoperability for MicrowaveAccess, Wimax) fast development, if 3-G (Generation Three mobile communication system) will keep its competitiveness powerful in moving communicating field, must improve its network performance and reduce networking and the cost of operation.Therefore, present 3GPP (3rd Generation PartnershipProject, third generation partner program) standardization effort group just is being devoted to packet switch core net (Packet Switch Core, PS Core) and global system for mobile communications wireless access network (Universal Mobile Telecommunication System Radio AccessNetwork, UTRAN) research of evolution, the problem of this research is called System Architecture Evolution (System Architecture Evolution, be called for short SAE), its objective is that the PSCore that makes evolution can provide higher transmission rate and shorter transmission delay, optimize grouping, and UTRAN (the Evolved UTRAN that supports evolution, E-UTRAN), UTRAN, WLAN (wireless local area network) (Wireless Local Area Network, WLAN), and the mobile management between the access network of other non-3GPP.
At present, the framework of SAE has wherein comprised following network element as shown in Figure 1:
The wireless access network of evolution (Evolved RAN, E-RAN): can provide higher on/downstream rate, lower transmission delay and wireless transmission more reliably.The network element that comprises among the E-RAN be evolution Node B (Evolved NodeB, eNodeB), it can provide Radio Resource for user's access;
Home subscriber server (Home Subscriber Server, HSS): the subscription data that is used for for good and all storing the user;
Packet Data Network (Packet Data Network, PDN): be used to the user to provide professional;
The Packet Based Network of evolution (E-Packet Core): it can provide lower delay, and allows more wireless access system to insert.Wherein comprise following network element: mobile management entity (Mobility Management Entity, MME): be the chain of command functional entity, the server that is used for interim storaging user data, it is in charge of and stores the UE context (such as the UE/ user ID, mobility management states, user security parameters etc.), for the user distributes temporary mark, when UE quarters at this tracing area or this network is to be responsible for this user is carried out authentication, then handles all non-access layer informations between MME and the UE; Triggering is in the paging of SAE;
Gateway (Serving GW): this gateway is a user entity, is responsible for the user face data route and handles, and termination is in the downlink data of the UE of idle state.SAE carrying (bearer) context of management and storage UE is such as IP bearer service parameter and network internal routing iinformation etc.Be the anchor point of 3GPP internal system user face, a user can only have a Serving GW a moment;
PDN GW: packet data network gateway, be responsible for the gateway function that UE inserts PDN, be the mobility anchor point of 3GPP and non-3GPP connecting system.The user can insert a plurality of PDN GW at synchronization.
In addition, the SAE system also allows the user to insert from traditional common mobile communication system (UMTS).Network element service SGSN among the tradition UMTS can insert Serving GW, and at this moment, Serving GW is the anchor point of the user's face among UMTS and the SAE.In addition, also there is an interface between SGSN and the MME, is used for providing the UMTS system to be similar to interface function between the SGSN.
In the zone that SAE system and UMTS system cover simultaneously, when being in idle condition, the user can cause a large amount of aerial signalings thus according to power alternate selection access technology in these two systems of signal.
For this reason, studying at present the technology of a kind of Signaling of being called as free, purpose is when user's alternate selection access technology, avoids or reduces the signaling of eating dishes without rice or wine.Its principle is to allow the user to register in SAE and UMTS system simultaneously, like this, when the user selects registered system, just need not initiate enrollment process once more, thereby reduce aerial signaling.
Yet, when the user is in idle condition, do not have the triggering registration process owing to having changed connecting system, so core net may not known that the user is current and was in which connecting system this moment, therefore, if there is downlink data to arrive, must in two systems, carry out paging simultaneously.In order to trigger the paging in UMTS, require to keep between SGSN and the Serving GW tunnel that transmits user data.When downlink data arrives Serving GW, Serving GW judges that the user is in idle condition, directly notice MME initiates paging at SAE on the one hand, downlink data directly can be sent to SGSN by this tunnel in addition, initiates paging thereby trigger SGSN at UMTS.Fig. 2 shows the flow process of this paging.
As shown in Figure 2, this paging comprises following processing:
Step 201, Serving GW downlink data receiving bag from the existing carrying;
Step 202, Serving GW judges that according to the information of preserving the user is in idle condition at present;
Step 203, Serving GW notice MME calling user in SAE;
Step 204, in MME, preserve the current place of user tracking area (TrackingArea, TA) tabulation, and MME sends paging requests to all e-Node B at these TA places, e-Node B is at the middle calling user of eating dishes without rice or wine;
Step 205, Serving GW sends to SGSN with the downlink data (may be first packet) that receives by the tunnel that has existed;
Step 206, SGSN judges that the user is in idle condition, initiates the paging request to the radio network controller (RNC) at the current place of user;
Step 207, after the user received the paging request, the connecting system to current place returned page response, begin to insert and set up carrying, and Serving GW sent to UE with downlink data in the carrying of setting up.
As mentioned above, Serving GW is the gateway of user's face, and when the user moved, MME may reselect Serving GW according to the position of e-Node B.And when Serving GW changes, the MME in the agreement will not change the relevant SGSN of notice at present, and SGSN just can't newly-built tunnel to new Serving GW like this.Therefore, under idle condition, downlink data can't be sent to new ServingGW from SGSN side, thereby cause Signaling Free mechanism failure.Therefore, need provide a kind of solution at this problem.
Summary of the invention
Consider the problems referred to above and make the present invention that for this reason, main purpose of the present invention is to provide the method for building up of a kind of SGSN to the tunnel of gateway.
According to embodiments of the invention, provide a kind of SGSN method for building up to the tunnel of gateway.
This method comprises: mobile management entity notice SGSN gateway changes, and notifies the IP address of new gateway; SGSN initiates to set up new bearer request to new gateway, wherein, sets up new bearer request and is used for asking to set up user's face tunnel; And in response to setting up new bearer request, new gateway distributing user face tunnel ID, and return to SGSN and to set up the new bearer response.
Wherein, set up IP address information and the user's face tunnel ID that carries SGSN in the new bearer request.Carry user's face tunnel ID that new gateway distributes and set up in the new bearer response.
In addition, notify in the tracing section updating process of mobile management entity under idle condition; Perhaps in the handoff procedure under the connection status, notify.Particularly, move to from the source mobile management entity under the situation of purpose mobile management entity, notify, perhaps will be forwarded to SGSN from the notice of purpose mobile management entity by the source mobile management entity by the purpose mobile management entity the user.And source mobile management entity and SGSN all support Signaling Free mechanism.
In addition, setting up the carrying request can be for upgrading the PDP Context request, and setting up the carrying response can be for upgrading the PDP Context response.
By technique scheme of the present invention, can guarantee the validity of SignalingFree mechanism under the idle condition.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the SAE framework of correlation technique;
Fig. 2 is the paging flow chart according to the Signaling Free technology of correlation technique;
Fig. 3 is according to the SGSN of the embodiment of the invention flow chart to the method for building up in the tunnel of Serving GW;
Fig. 4 is according to the SGSN of the embodiment of the invention signaling process figure to the method for building up in the tunnel of Serving GW;
Fig. 5 is according to the SGSN of the embodiment of the invention signaling process figure to the processing example 1 of the method for building up in the tunnel of Serving GW;
Fig. 6 is according to the SGSN of the embodiment of the invention signaling process figure to the processing example 2 of the method for building up in the tunnel of Serving GW;
Fig. 7 is according to the SGSN of the embodiment of the invention signaling process figure to the processing example 3 of the method for building up in the tunnel of Serving GW; And
Fig. 8 is according to the SGSN of the embodiment of the invention signaling process figure to the processing example 4 of the method for building up in the tunnel of Serving GW.
Embodiment
The scheme that provides in the embodiment of the invention can solve the problems referred to above that exist in the correlation technique.Wherein, when mobile management entity (MME) finds that gateway (Serving GW) changes, notice SGSN, and tell SGSN with the address information of new Serving GW, SGSN can be established to the tunnel of new Serving GW like this, thereby makes that Signaling Free mechanism can be effective.Describe the embodiment of the invention in detail hereinafter with reference to accompanying drawing, wherein, provide following examples with provide to of the present invention comprehensively and thorough, rather than the present invention carried out any restriction.
In the present embodiment, provide a kind of SGSN method for building up to the tunnel of Serving GW.
As shown in Figure 3, comprise to the method for building up in the tunnel of Serving GW according to the SGSN of present embodiment: step S302, MME notice SGSN Serving GW changes, and notifies the IP address (corresponding to the step 401 among Fig. 4) of new Serving GW; Step S304, SGSN initiates to set up new bearer request to new Serving GW, wherein, sets up new bearer request and is used for asking to set up user's face tunnel (corresponding to the step 402 of Fig. 4); And step S306, in response to setting up new bearer request, new Serving GW preserves relevant information (for example, IP address and the tunnel information of SGSN), distributing user face tunnel ID, and return to SGSN and to set up new bearer response (corresponding to the step 403 among Fig. 4).
Wherein, set up IP address information and the user's face tunnel ID that carries SGSN in the new bearer request.Carry user's face tunnel ID that new gateway distributes and set up in the new bearer response.
Particularly, MME can notify in tracking area (TA) renewal process under idle condition; Perhaps in the handoff procedure under the connection status, notify.Move under the situation of purpose MME from source MME the user, MME notifies by purpose, perhaps will be forwarded to SGSN from the notice of purpose MME by source MME.Wherein, source MME and SGSN all support Signaling Free mechanism (back will be described in detail this process).
In addition, set up the carrying request, set up the carrying response for upgrading the PDP Context response for upgrading the PDP Context request.
Fig. 4 shows the signaling process figure of this method.Step 401 among Fig. 4,402 and 403 corresponds respectively to step S302, step S304 and the step S306 among Fig. 3, no longer repeats its description here.
By above-mentioned processing, successfully set up SGSN to the tunnel between the new Serving GW.At this moment, downlink data packet can arrive SGSN from this tunnel, and triggers the paging in UMTS, referring to the step 205 among Fig. 2.
With reference to example embodiments of the invention are described below.
Example 1
In this example, suppose that the user under the idle pulley moves to the SAE overlay area from the UMTS overlay area, as shown in Figure 5, in the TA renewal process in this case, the change process of ServingGW comprise following processing:
Step 501: to find that present SAE signal and TA current place better than UMTS signal do not register out-of-date as UE, this UE initiates the TA update request to network, wherein has the Routing Area Identifier of original user P-TMSI (customer temporary identity sign) and last registration; ENodeB receives after this request, transmits this TA update request to the MME at current TA place, wherein has the TA sign at current place;
Step 502: after purpose MME receives, derive the SGSN of the last registration of user according to the route district of last time registration, thereby realize obtaining user's context, wherein, include original user Serving GW in this context from SGSN;
Step 503: purpose MME initiates authentication process as required;
Step 504: purpose MME judges whether to continue to use original ServingGW, if can use, then keeps original Serving GW constant; If can not use, then determine to select new Serving GW;
Step 505: after authentication success, purpose MME returns the SGSN context and obtains response message, therefore, if the user returns SGSN again, just need re-authenticate and obtains data to HSS;
The Serving GW Resources allocation that step 506: purpose MME please look for novelty is also set up load bearing process;
Step 507: purpose MME is to HSS request user data and upgrade the process of customer position information among the HSS;
Step 508: if purpose MME has selected new Serving GW, and purpose MME and source SGSN support Signaling Free mechanism, then purpose MME initiates the notification message that Serving GW changes to source SGSN, wherein has the ServingGW sign of change and the address information of new Serving GW;
Alternatively, in step 505, purpose MME does not so just need above-mentioned steps 508 with the sign of Serving GW change and the address information notification source SGSN of new Serving GW.
Step 509 after source SGSN is notified (this notice be in step 508 or the step 505 notification message), sends to new Serving GW and to upgrade the PDP Context request, wherein has the IP address of SGSN and the tunnel information of distribution;
Step 510, new Serving GW receives after the request, preserve IP address and the tunnel information of SGSN, the tunnel information that distributes itself, and return to SGSN and to upgrade the PDP Context response, wherein have the tunnel information (that is,, between source SGSN and new Serving GW, having set up new tunnel) that Serving GW distributes by step 509 and step 510;
Step 511: purpose MME redistributes S-TMSI, and the heavy assignment messages of S-TMSI is returned to UE, has S-TMSI and current TA in this message of returning;
Step 512: in response to the return messages in the step 511, UE preserves S-TMSI and current TA, and returns TMSI and redistribute response.
In example 1, if purpose MME decision continues to use original Serving GW in the step 504, then not execution in step 508 to step 510, and direct execution in step 511 and 512.
Example 2
In this example, suppose that the user under the idle pulley moves in the SAE overlay area, this example and example 1 are similar substantially, and difference is that SGSN is not as source node.As shown in Figure 6, in the TA renewal process in this case, the change process of Serving GW comprises following processing:
Step 601:UE finds the unregistered mistake of the TA at current place, initiates the TA update inquiry information to network, the TA tabulation of band original user S-TMSI and last registration in the request message; ENodeB receives after the request message, transmits this TA update inquiry information to the MME at current TA place, and adds the TA at current place in message;
Step 602: after purpose MME receives, derive the source MME of the last registration of user according to the TA of last time registration, thereby realize obtaining user's context from SGSN, wherein, include the address information of the SGSN of original user Serving GW and registration this moment in this context, and comprise the sign whether expression SGSN supports the ability of Signaling Free;
Step 603: purpose MME initiates authentication process as required;
Step 604: similar with above-mentioned steps 504, purpose MME judges whether to continue to use original Serving GW, if can use, just keeps original ServingGW constant; If can not use, just new Serving GW is selected in decision;
Step 605: similar with above-mentioned steps 505, after authentication success, purpose MME returns the SGSN context and obtains response message, therefore, if the user returns SGSN again, just need re-authenticate and obtains data to HSS;
Step 606: similar with above-mentioned steps 506, the ServingGW Resources allocation that purpose MME please look for novelty is also set up load bearing process;
Step 607: similar with above-mentioned steps 507, purpose MME is to HSS request user data and upgrade the process of customer position information among the HSS;
Step 608: if purpose MME has selected new Serving GW, and the SGSN of source MME and registration simultaneously supports Signaling Free mechanism, then purpose MME initiates the notification message that Serving GW changes to this SGSN, wherein have the sign of Serving GW change and the address information of new Serving GW, wherein, the address information of SGSN is obtained from original MME in step 602;
Alternatively, in step 605, use context to obtain response message, perhaps use a new message, purpose MME is with the sign of Serving GW change and the address information notification source MME of new Serving GW; After source MME is notified, judge that the SGSN of registration simultaneously supports Signaling Free, initiate the notice that Serving GW changes to SGSN more afterwards, this notification message has the address information of new Serving GW;
Step 609 after SGSN is notified, sends the request of renewal PDP Context to new Serving GW, wherein, has the IP address of SGSN and the tunnel information of distribution in this request;
Step 610, new Serving GW receives after the request, preserve IP address and the tunnel information of SGSN, the tunnel information that distributes oneself, and return to SGSN and to upgrade the PDP Context response, wherein have the tunnel information (that is,, between source SGSN and new Serving GW, having set up new tunnel) that Serving GW distributes by step 609 and step 610;
Step 611: identical with step 511, purpose MME redistributes S-TMSI, and the heavy assignment messages of S-TMSI is returned to UE, wherein has S-TMSI and current TA;
Step 612: in response to the return messages in the step 611, UE preserves S-TMSI and current TA, and returns TMSI and redistribute response.
Similarly, in this example, if purpose MME decision continues to use original Serving GW in the step 604, then needn't execution in step 608～step 610, and direct execution in step 611 and 612.
Example 3
Fig. 7 shows under enable mode in the handoff procedure from UMTS to SAE, and Serving GW changes the processing of process.As shown in Figure 7, specifically may further comprise the steps:
Step 701: source RNC initiates handoff request message according to signal measurement to source SGSN, has the information of purpose TA in this request message;
Step 702: source SGSN finds purpose MME according to the information of purpose TA in the request message, and sends handoff request to this MME, wherein has the information of purpose TA and the positional information of source Serving GW;
Step 703: purpose MME receives after the request, according to the Information Selection purpose eNodeB of purpose sub-district, and judges that can original Serving GW continue to use, if can not continue to use, then selects new Serving GW;
The Serving GW that step 704: purpose MME please look for novelty distributes bearing resource; After purpose Serving GW distributes bearing resource, user's face resource information of distributing is returned to MME;
Step 705: purpose MME initiates handoff request to purpose eNodeB, and notifies purpose eNodeB with the user name resource information of purpose Serving GW; Purpose eNodeB distributes after bearing resource and the idle wireless resource, return purpose MME switching response message, have bearing resource information and idle wireless resource information (that is,, successfully having reserved the resource of switching purpose side) that eNodeB distributes in this response message by step 704 and step 705;
Step 706: purpose MME returns source SGSN handoff response, wherein has the idle wireless resource information that purpose eNodeB distributes;
Step 707: source SGSN initiates switching command message to source RNC, wherein has the idle wireless resource information that purpose eNodeB distributes;
Step 708: source RNC order UE begins to switch;
Step 709: terminal switches to purpose eNodeB according to the idle wireless resource information that purpose eNodeB distributes;
Step 710: purpose eNodeB is to purpose MME report handoff completion message;
Step 711: purpose MME sends handoff completion message to source SGSN, has the indication whether Serving GW changes in this message, if Serving GW changes, then further has the address information of new Serving GW;
Optionally, the indication that whether changes of Serving GW and the address information of Serving GW also can bring source SGSN in step 706.
Step 712: source SGSN returns purpose MME switching and finishes response message;
Step 713: source SGSN sends to new Serving GW and upgrades the PDP Context request, wherein has the IP address of SGSN and the tunnel information of distribution;
Step 714, new Serving GW receives and upgrades after the PDP Context request, preserve IP address and the tunnel information of SGSN, the tunnel information that distributes itself, and return to SGSN and to upgrade the PDP Context response, have the tunnel information that Serving GW distributes (that is,, between source SGSN and new ServingGW, having set up new tunnel) in this response by step 714 and step 715;
Step 715: source SGSN initiates resource release request to source RNC;
Step 716: source RNC discharges after the related resource, sends resource to source SGSN and discharges response.
In this example, in step 703, if purpose MME judge to continue uses original Serving GW, execution in step 713 and 714 not then.
Example 4
Shown in Figure 8 SAE is inner under enable mode switches, and Serving GW changes the processing of process.This example is similar with example 3 before, and difference is that SGSN is not the source node that switches.As shown in Figure 8, it specifically comprises following processing:
Step 801: source eNodeB initiates handoff request message according to signal measurement to source MME, has the information of purpose TA in this request message;
Step 802: source MME finds purpose MME according to the information of purpose TA in the request message, sends handoff request to this MME then, has the information of purpose TA and the positional information of source Serving GW in this request, and the information of the SGSN that registers simultaneously;
Step 803: purpose MME receives after the above-mentioned handoff request, according to the Information Selection purpose eNodeB of purpose sub-district; Judge then and can continue to use original ServingGW,, then select new Serving GW if can not continue to use;
The Serving GW that step 804: purpose MME please look for novelty distributes bearing resource, and after the purpose Serving GW distribution bearing resource, user's face resource information of distributing is returned to MME;
Step 805: purpose MME initiates handoff request to purpose eNodeB, and the user name resource information of purpose Serving GW is notified to purpose eNodeB, purpose eNodeB distributes after bearing resource and the idle wireless resource, return purpose MME switching response message, wherein have bearing resource information that eNodeB distributes and idle wireless resource information (promptly, by step 804 and step 805, successfully reserved the resource of switching purpose side);
Step 806: purpose MME returns source MME switching response message, wherein has the idle wireless resource information that purpose eNodeB distributes;
Step 807: source MME initiates switching command message to source eNodeB, wherein has the idle wireless resource information that purpose eNodeB distributes;
Step 808: source eNodeB order UE begins to switch;
Step 809: terminal switches to purpose eNodeB according to the idle wireless resource information that purpose eNodeB distributes;
Step 810: purpose eNodeB sends handoff completion message to purpose MME;
Step 811: purpose MME sends handoff completion message to source MME, has the indication whether Serving GW changes in this message, if Serving GW changes, then further has the address information of new Serving GW;
Optionally, the address information of indication whether Serving GW changes and new Serving GW also can bring source MME in step 806.
Step 812: source MME returns purpose MME switching and finishes response message;
Step 813: if Serving GW changes, and SGSN support Signaling Free mechanism, source MME initiates notification message to SGSN, has the address information of new ServingGW in this notification message.Optionally, also can directly initiate notification message to SGSN by purpose MME, wherein, the address information of SGSN can be known from source MME in the superincumbent step 802;
After the notified message of step 814:SGSN, send the request of renewal PDP Context, wherein have the IP address of SGSN and the tunnel information of distribution to new Serving GW;
Step 815, new Serving GW receives and upgrades after the PDP Context request, preserve IP address and the tunnel information of SGSN, the tunnel information that distributes itself, and return to SGSN and to upgrade the PDP Context response, wherein have the tunnel information (that is,, between source SGSN and new Serving GW, having set up new tunnel) that Serving GW distributes by step 814 and step 815;
Step 816: source MME initiates resource release request to source eNodeB;
Step 817: source eNodeB discharges related resource, sends resource to source MME afterwards and discharges response;
Similarly, in step 803,, purpose MME continues to use original Serving GW if judging, and then needn't execution in step 813,814 and 815.
In sum, by means of art scheme of the present invention, when Serving GW changed, SGSN can be reconstructed into the tunnel of new Serving GW, thereby can guarantee the validity of Signaling Free mechanism under the idle condition.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.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 (7)
1. a SGSN is characterized in that to the method for building up in the tunnel of gateway, comprising:
Mobile management entity notice SGSN gateway changes, and notifies the IP address of new gateway;
Described SGSN initiates to set up new bearer request to described new gateway, and wherein, the described new bearer request of setting up is used for asking to set up user's face tunnel; And
In response to the described new bearer request of setting up, described new gateway distributing user face tunnel ID, and return to described SGSN and to set up new bearer response.
2. the method for building up in tunnel according to claim 1 is characterized in that, described IP address information and the described user's face tunnel ID that carries described SGSN in the new bearer request that set up.
3. the method for building up in tunnel according to claim 1 is characterized in that, described foundation carries described user's face tunnel ID that described new gateway distributes in the new bearer response.
4. the method for building up in tunnel according to claim 1 is characterized in that, carries out described notice in the tracing section updating process of described mobile management entity under idle condition; Perhaps in the handoff procedure under the connection status, carry out described notice.
5. the method for building up in tunnel according to claim 4, it is characterized in that, move under the situation of purpose mobile management entity from the source mobile management entity the user, carry out described notice by the purpose mobile management entity, perhaps will be forwarded to described SGSN from the described notice of purpose mobile management entity by the source mobile management entity.
6. the method for building up in tunnel according to claim 5 is characterized in that, described source mobile management entity and described SGSN all support Signaling Free mechanism.
7. the method for building up in tunnel according to claim 1 is characterized in that, described foundation carrying request is for upgrading the PDP Context request, and described foundation carrying response is for upgrading the PDP Context response.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101276305A CN101330425B (en) | 2007-06-19 | 2007-06-19 | Method for establishing tunnel from SGSN to service gateway |
| PCT/CN2007/003848 WO2008154783A1 (en) | 2007-06-19 | 2007-12-27 | Method for establishing tunnel from sgsn to serving gateway |
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| CN2007101276305A CN101330425B (en) | 2007-06-19 | 2007-06-19 | Method for establishing tunnel from SGSN to service gateway |
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| CN101330425B true CN101330425B (en) | 2011-03-02 |
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|---|---|---|---|---|
| CN101511079B (en) | 2007-11-01 | 2010-10-27 | 华为技术有限公司 | Method and device for accessing original network through evolution network temporary mark |
| CN101610504B (en) | 2008-06-18 | 2012-08-08 | 上海华为技术有限公司 | Method and device for accessing and obtaining user equipment context and user equipment identification |
| CN104105144B (en) * | 2009-01-15 | 2017-11-17 | 华为技术有限公司 | Switch data method for processing forwarding, device and system |
| CN101784033B (en) * | 2009-01-15 | 2014-07-09 | 华为技术有限公司 | Processing method, processing device and processing system for switching data forwarding |
| CN101945429B (en) * | 2009-07-08 | 2014-09-17 | 华为技术有限公司 | Method, device and system for data routing of mobile network user interface |
| WO2011054145A1 (en) * | 2009-11-05 | 2011-05-12 | 华为技术有限公司 | Method, system and equipment for notifying internet protocol address |
| CN102740384A (en) * | 2011-04-06 | 2012-10-17 | 中兴通讯股份有限公司 | Tunnel information reporting method and system thereof |
| CN102892109B (en) | 2011-07-21 | 2018-05-11 | 中兴通讯股份有限公司 | A kind of method and system for realizing IP address property notification |
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| CN1842049A (en) * | 2005-03-30 | 2006-10-04 | 向为 | Method for relocating universal packet wireless service gateway support note |
| CN1852461A (en) * | 2005-05-31 | 2006-10-25 | 华为技术有限公司 | Method for realizing concurrent voice business after inter-local-network switchover |
| WO2007024116A1 (en) * | 2005-08-26 | 2007-03-01 | Electronics And Telecommunications Research Institute | An apparatus and a method for service continuity between umts network and wlan |
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| CN100337444C (en) * | 2003-12-24 | 2007-09-12 | 华为技术有限公司 | A method for redirecting packet data gateway in wireless LAN |
| GB2416958A (en) * | 2004-07-30 | 2006-02-08 | Orange Personal Comm Serv Ltd | Communicating internet packet data over a packet radio network |
| US7564793B2 (en) * | 2005-01-04 | 2009-07-21 | Avaya Inc. | In-band call association signaling for a single number destination |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1842049A (en) * | 2005-03-30 | 2006-10-04 | 向为 | Method for relocating universal packet wireless service gateway support note |
| CN1852461A (en) * | 2005-05-31 | 2006-10-25 | 华为技术有限公司 | Method for realizing concurrent voice business after inter-local-network switchover |
| WO2007024116A1 (en) * | 2005-08-26 | 2007-03-01 | Electronics And Telecommunications Research Institute | An apparatus and a method for service continuity between umts network and wlan |
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| WO2008154783A1 (en) | 2008-12-24 |
| CN101330425A (en) | 2008-12-24 |
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