CN101521871A - Method, device and system for updating tracking area - Google Patents
Method, device and system for updating tracking area Download PDFInfo
- Publication number
- CN101521871A CN101521871A CN200810100917A CN200810100917A CN101521871A CN 101521871 A CN101521871 A CN 101521871A CN 200810100917 A CN200810100917 A CN 200810100917A CN 200810100917 A CN200810100917 A CN 200810100917A CN 101521871 A CN101521871 A CN 101521871A
- Authority
- CN
- China
- Prior art keywords
- pdn
- indication
- mme
- tau
- unit
- 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.)
- Granted
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a method, a device and a system that are used for updating tracking areas; a base station eNodeB updates a TAU requesting message according to the tracking area sent by user equipment (UE), and transfers the TAU requesting message to the new MME when judging that a new mobile management entity (MME) needs to be selected for the UE; the new MME obtains context information in the original MME according to the TAU requesting information and judges whether the UE moves to the new position charging management area; if so, a TAU process for establishing PDN connection with PDN GW which selects current service network for the UE is executed; if not, the TAU process which does not need to carry out PDN GW optimization selection is executed. The method, the device and the system can change the PDN GW which visits the PDN which establishes the connection and can realize the optimization of PDN connection.
Description
Technical field
The present invention relates to mobile communication technology, particularly relate to a kind of methods, devices and systems that can optimize the tracing section updating (TAU) of packet data network (PDN, Packet Data Network) connection.
Background technology
In present 3GPP EPS (the 3rd Generation Partnership Project EvolvedPacket System) system, allow subscriber equipment (UE, grouped data network gateway (PDN GW by visit ground when User Equipment) roaming into the visited network in cross-location accounting management zone, PDN Gateway) be linked into PDN and obtain service, this situation is called local break-out (Localbreakout).
When UE enters the signatory PDN of " adhering to " state or desire and another one and connects in the visited network in cross-location accounting management zone, system will be according to the user contracting data of user's subscribed services device (HSS) preservation in the PDN GW choice mechanism, allow the user to set up being connected under the local breakout situation with the PDN that contracts by the PDN GW that visited network distributes, this PDN connects and comprises a default bearing, in addition, can also comprise one or more dedicated bearers.After this, according to existing tracing section updating TAU method, as long as UE does not shut down, be in Evolved Packet System connectivity management idle condition (EPS Connectivity Management-Idle, ECM-IDLE) after UE moves to a new visited network or gets back to home network from current visited network, keep being connected by PDN GW that in former visited network, uses and the PDN network that inserts at former visited network with continuing.This is because existing tracing section updating TAU method can not discharge UE and signatory PDN at the former visited network shared bearing resource that connects in the TAU process, thereby can't discharge PDN GW resource with the employed former visited network that should signatory PDN connects, when this will mean that UE is in new visited network or home network, will utilize the PDN GW of former visited network to insert described signatory PDN.This will produce following problem: when (1) user changes Evolved Packet System connectivity management connection status (ECM-CONNECTED) over to and carries out business, because of the inconsistent user of generation in the accounting management zone, position of the on-site position of the UE accounting management zone and the Internet resources that use irrational problem of chargeing.(2) resource of former visited network can not effectively discharge and cause the local user of visited network to insert difficulty; (3) same business can be by new visited network or home network services but is needed to cause the huge waste of backbone network resource between the operator around obtaining service to former visited network.
For example Beijing contracted user UE roams into Xi'an, PDN GW by Shaanxi behind the start-up logging of Xi'an has set up with a signatory PDN and has been connected, when after this under the situation of not shutting down, getting back to Beijing, UE will utilize Shaanxi PDN GW to insert this signatory PDN, this will cause the problem of but being used the Internet resources in Shaanxi by Beijing charging, and, the Internet resources in Shaanxi influence local user's access network under it owing to can not discharging, simultaneously also make Pekinese's Internet resources can not get effective utilization, that is to say the optimization utilization that is unfavorable for the whole system Internet resources.
This shows, existing tracing section updating method can not change and is used to visit the employed PDN GW of the PDN that has connected, this will cause the position of UE stride message area when changing system can't connect this PDN and be optimized, the problems such as unreasonable that are unfavorable for the optimization utilization of grid resource and cause that customer service after this charges.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of tracing section updating method, and this method can change the employed PDN GW of PDN that visit has connected, realizes the optimization that PDN is connected.
In order to achieve the above object, the technical scheme of the present invention's proposition is:
A kind of method of tracing section updating, this method may further comprise the steps:
A, base station (eNodeB) when judgement need be selected new MME for UE, are transmitted to new MME with the TAU request message according to the tracing section updating TAU request message that user equipment (UE) sends;
B, new MME obtain contextual information according to the TAU request message from former MME, judge that whether UE has moved to new accounting management zone, position, if then change step c over to, otherwise changes steps d over to;
C, new MME send PDN GW to former MME and optimize indication, and carry the TAU refuse information of adhering to indication again according to described contextual information to the UE transmission; Former MME optimizes indication according to PDN GW and starts implicit expression attachment removal process; UE starts attaching process again according to adhering to the new MME of indication triggering again, connects for UE selects the PDN GW of current service network to set up PDN, and the TAU process finishes;
D, new MME trigger gateway starting update load bearing process, send TAU to UE and accept message.
Aforesaid method further comprises between described step b and the step c:
New MME changes PDN GW indication according to the permission in the described contextual information, judges whether UE allows to change PDN GW, if allow, then changes step c over to, otherwise, change steps d over to.
Aforesaid method further comprises between described step b and the step c:
New MME judges according to the indication of the local break-out in the described contextual information whether UE has used the PDN GW in the former visited network to set up the PDN connection, if, then change step c over to, otherwise, change steps d over to;
The indication of described local break-out is that UE is at visited network but not home network adheres to or when setting up PDN and connecting, be provided with and be stored in the contextual information by the MME in the visited network.
Aforesaid method, the TAU refuse information comprises default bearing sign deletion indication among the described step c, and UE is according to default bearing sign deletion indication deletion and the relevant contextual information of former default bearing sign.
The embodiment of the invention also provides a kind of system that realizes tracing section updating, can change the employed PDN GW of PDN that visit has connected, realizes the optimization that PDN is connected.
In order to achieve the above object, the technical scheme of embodiment of the invention proposition is:
A kind of system that realizes tracing section updating, this system comprises:
UE is used for sending the TAU request message to eNodeB; Reception is accepted message from TAU refuse information and the TAU of eNodeB; Initiate initial attaching process according to adhering to indication again to new MME;
ENodeB is used to receive the TAU request message of UE, and in the time need selecting new MME for UE, the TAU request message is transmitted to the new MME that selects; The TAU refuse information and the TAU that receive MME accept message and are transmitted to UE;
New MME is used for judging according to the TAU request message whether UE has moved to new accounting management zone, position, if then carry out the optimized choice of PDN GW, sends PDN GW to former MME and optimizes indication, sends to UE and carries the TAU refuse information of adhering to indication again; Be used at attaching process again, connect for UE selects PDN GW in the current service network to set up PDN; Be used for sending the establishment bearing request message to gateway;
Former MME is used for optimizing indication according to PDN GW and starts implicit expression attachment removal process;
Gateway is used for establishment bearing request message starting update load bearing process or establishment load bearing process according to MME.
Aforesaid system, described new MME is further used for obtaining from the contextual information of former MME and allows to change PDN GW indication, and judge according to allow changing PDN GW indication whether UE allows to change PDN GW, if not, then do not carry out the optimized choice of PDN GW.
Aforesaid system, described new MME is further used for obtaining the local break-out indication from the contextual information of former MME, and judge according to local break-out indication whether UE has used the PDN GW in the former visited network to set up the PDN connection, if not, then do not carry out the optimized choice of PDN GW.
Aforesaid system, described new MME are further used for sending default bearing sign deletion indication to UE, and described default bearing sign deletion indication is contained in the TAU refuse information; Described UE is further used for according to default bearing sign deletion indication deletion and the relevant contextual information of former default bearing sign.
The embodiment of the invention also proposes a kind of device that is used for tracing section updating, and its technical scheme is:
A kind of device that is used for tracing section updating, this device comprises:
Transmit-Receive Unit is used to receive the TAU request message of UE and be sent to judging unit; Receive the Attach Request message of UE and be sent to adhesion unit; The PDN connection request information and sending that receives UE is to PDN connection management unit; PDN GW is optimized indication be sent to the MME that UE moves preceding position, and will carry the TAU refuse information of adhering to indication again and be sent to UE; To create bearing request message and be sent to gateway, and TAU be accepted message be sent to UE;
Judging unit is used for judging whether to carry out according to the TAU request message of Transmit-Receive Unit the optimized choice of PDN GW, if, then send PDN GW optimize indication and carry adhere to indication again the TAU refuse information to Transmit-Receive Unit; Otherwise, send TAU and accept message and create bearing request message to Transmit-Receive Unit;
Adhesion unit is used for the Attach Request message according to UE, realizes that the network of UE initially adheres to, and is included as the PDN connection that UE sets up acquiescence;
PDN connection management unit is used for the PDN connection request message according to UE, connects for UE sets up PDN.
Aforesaid device, described judging unit comprises:
Cross-location accounting management region decision unit is used for judging according to the TAU request message whether UE has moved to new accounting management zone, position; If not, then do not carry out the optimized choice of PDN GW.
Aforesaid device, this device further comprises:
The contextual information unit is used to deposit the contextual information of UE;
Described Transmit-Receive Unit is further used for receiving the contextual information that MME that UE moves preceding position sends, and the permission that will wherein comprise changes PDN GW indication and local break-out and indicates and be sent to judging unit;
Described judging unit further comprises:
Allow to change PDN GW judging unit, be used for judging according to allowing to change PDN GW indication whether UE allows to change PDN GW,, then do not carry out the optimized choice of PDN GW if do not allow;
The local break-out judging unit is used for judging according to local break-out indication whether UE has used the PDN GW in the former visited network to set up the PDN connection, if not, then do not carry out the optimized choice of PDN GW;
Described adhesion unit is further used for when the PDN GW that uses visited network to distribute sets up the PDN connection, local break-out is set indicates and deposit in the contextual information unit;
Described PDN connection management unit is further used for when the PDN GW that uses visited network to distribute sets up the PDN connection, local break-out is set indicates and deposit in the contextual information unit.
Aforesaid device, described judging unit contain default bearing sign deletion indication in the TAU refuse information that Transmit-Receive Unit sends;
Described Transmit-Receive Unit is further used for sending default bearing sign deletion indication to UE.
The embodiment of the invention also proposes a kind of device that is used for tracing section updating, and its technical scheme is:
A kind of device that is used for tracing section updating, this device comprises:
Transmit-Receive Unit is used for obtaining contextual information from the contextual information unit, and is sent to the MME of UE current location; Be used to receive PDN GW optimization indication, and be sent to implicit expression attachment removal unit from the MME of UE current location;
Implicit expression attachment removal unit is used for optimizing indication according to PDN GW and starts implicit expression attachment removal process.
Aforesaid device, this device further comprises:
The contextual information unit is used to store contextual information, wherein comprises the local break-out indication and allows to change PDN GW indication.
In sum, the tracing section updating method that the present invention proposes, Apparatus and system send PDN GW by new MME to former MME and optimize the former MME startup implicit expression attachment removal process that triggers of indicating, and carry the TAU refuse information triggering UE that adheres to indication again according to described contextual information to the UE transmission and initiate attaching process again to new MME, thereby can change the employed PDN GW of PDN that visit has connected, realize the optimization that PDN is connected.
Description of drawings
Fig. 1 is the flow chart of the inventive method.
Fig. 2 is the flow chart of the embodiment one of the inventive method.
Fig. 3 is the structural representation of system of the present invention.
The structural representation of embodiment when Fig. 4 is in the current position of UE for apparatus of the present invention.
The structural representation of another embodiment when Fig. 5 is in the current position of UE for apparatus of the present invention.
Example structure schematic diagram when Fig. 6 moves the position at preceding place for apparatus of the present invention are in UE.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
Basic thought of the present invention is: in existing TAU process, increase is to the judgement of the optimized choice of PDN GW, judge need carry out the optimized choice of PDN GW after, by new Mobility Management Entity (MME, Mobility Management Entity) triggers former MME to former MME transmission PDN GW optimization indication information this UE is carried out implicit expression attachment removal process, and send to UE and to adhere to indication again and trigger UE and initiate initial attaching process again, thereby realize that UE is carrying out the optimization that cross-location accounting management zone connects optimized choice and the acquiescence PDN of PDN GW when mobile.
Fig. 1 is a method flow diagram of the present invention.As shown in Figure 1, tracing section updating method of the present invention mainly may further comprise the steps:
Here, user's global unique temporary identity (GUTI that eNodeB carries from the TAU request message that UE sends, Globally Unique Temporary Identity) and in the selected network indication (SelectedNetwork indicator) obtain MME, if the MME that gets access to does not link to each other with this eNodeB, then use among the 3GPP TS23.401 (GPRS enhancements for E-UTRAN access (Release 8)) " MME selection function " to select new MME as UE, then the TAU request message is transmitted to selected new MME, foregoing is a prior art, repeats no more herein.
Here, judge that the method whether UE has moved to new accounting management zone, position is: obtain former MME sign in new user's global unique temporary identity of MME from the TAU request message, and obtain position accounting management area information under it according to former MME sign, position accounting management area information under position accounting management area information under the former MME and the new MME is compared, if it is different, then judge UE and moved to a new accounting management zone, position, if it is identical, then judging UE only is to move in same position accounting management zone, do not need to carry out again the optimized choice of PDN GW, this method belongs to the prior art content, repeats no more herein.
Here, accounting management territory, position can be diverse location charging zone in the same public land mobile network (PLMN, PublicLand Mobility Network), also can be the diverse location accounting management zone of different PLMN.
Here, new MME is by triggering the implicit expression attachment removal process that former MME initiates, discharged original position accounting management zone corresponding bearer resource, and will from contextual information, obtain the PDN that has set up and connect pairing access point name (Access Point Name, APN) tell to UE by the TAU refuse information, UE initiates attaching process again according to the indication of adhering to again in the TAU refuse information then, the PDN GW of new MME selection current location accounting management Local Area Network is the connection that UE sets up the PDN network of described APN indication in this process, thereby realize that UE is in the interregional optimization that optimized choice and the PDN of PDN GW is connected when mobile of cross-location accounting management, concrete implicit expression attachment removal process and initial attaching process are prior art, repeat no more herein.
This step is the renewal load bearing process of carrying out when not needing to carry out PDN GW optimized choice, belongs to prior art, repeats no more herein.
For tracing section updating method of the present invention is described better, be described in detail with preferred embodiment below.
Fig. 2 is the flow chart of the embodiment one of the inventive method.As shown in Figure 2, embodiment one may further comprise the steps:
UE finds that in moving process current tracking area identification (TAI) not in the UE TAI tabulation of registered network, then detects it and enters into a new tracking area;
Here, described contextual information has comprised user signing contract information and the local break-out indication of this UE, includes in the user signing contract information to allow to change PDN GW indication, and concrete new MME is a prior art to the method that former MME obtains contextual information, repeats no more herein
Concrete verification process carries out according to the definition of safety function (SecurityFunction) chapters and sections in the 3GPP TS23.401 standard, belongs to the prior art content, repeats no more herein.In addition, this step is in order to strengthen the fail safe of TAU process, can to accept or reject according to actual needs in actual applications.
Here, new MME is by judging whether UE has moved to new accounting management zone, position and determined whether to carry out the optimization of PDN GW, if UE only is mobile then need not to carry out the optimization of PDN GW in same position accounting management zone.
Local break-out indication in step 206, the new MME based on contextual information judges whether UE has used the PDN GW in the former visited network to set up the PDN connection, if then change step 207 over to, otherwise change step 210 over to.
In actual applications, Virtual network operator can be according to charging policy, only require UE when moving to another visited network or its home network, just to carry out the optimized choice of PDN GW from a visited network, when moving to other visited network, then do not need to carry out the optimization of PDN GW from home network, purpose is in order to discharge the resource of visited network, to make things convenient for operator to unify charging policy.In these cases, correspondingly need in setting up initial attaching process that PDN connects and UE request PDN connection procedure, existing triggering MME increase following content: when the MME of visited network utilizes local PDN GW to be connected for the UE in other possessions sets up PDN, local break-out is set indicates and is stored in the contextual information, connect to indicate this UE to utilize the PDN GW of visited network to set up PDN, indication discharges this PDN GW resource according to local break-out when being convenient to after this UE and getting back to home network or other visits, therefore, in the present embodiment, whether increased according to the local break-out indication has used the PDN GW in the former visited network to set up the judgement that PDN connects to UE, if not, then need not carry out the optimized choice of PDN GW.
Permission in step 207, the new MME based on contextual information changes PDN GW indication and judges whether UE allows the GW at the interregional change of diverse location accounting management PDN, if allow, then changes step 208 over to, otherwise changes step 210 over to.
In actual applications, can allow to change PDN GW indication parameter by in user signing contract information, being provided with, whether allow the change of the interregional PDN GW of diverse location accounting management by the UE decision, it is corresponding when new MME judges whether to carry out the optimized choice of PDN GW, need carry out the judgement of this step, that is to say if UE does not allow the change of the interregional PDN GW of diverse location accounting management, then need not to carry out the optimized choice of PDN Gateway.
Above-mentioned steps 205,206 and 207 all is used to judge whether to carry out the optimized choice of PDN GW, and wherein step 206 and 207 can be accepted or rejected according to the practical application needs.In addition, in actual applications step 205,206 and 207 is not had strict sequence requirement, only selected preferable built-up sequence to describe in the present embodiment.
In the present embodiment, described PDN GW optimizes indication and is carried by context acknowledge message.
Here, former MME initiates implicit expression attachment removal process to former gateway (Serving GW) and former PDN GW, and concrete implicit expression attachment removal process is referring to 3GPP TS23.401 section 5.3.8.3 " MME-initiated Detach procedure ".
The attaching process that UE initiates to new MME is referring to 3GPP TS23.401 section 5.3.2.1 " E-UTRAN Initial Attach ", in order to cooperate the enforcement of present embodiment, need improve this process according to the method in the step 206: increase the setting of local break-out indication parameter so that when after this UE roams into other visited network to the release of this PDN GW resource.By initiating initial attaching process again, UE can select new PDN GW to utilize new default bearing to set up the PDN connection, and the PDN GW that this new PDN GW may be new visited network also may be the PDN GW of home network.
Here, new MME by to this process of Serving GW according to 3GPP TS23.401 standard in the E-UTRAN Tracking Area Update procedure chapters and sections flow process carry out, belong to prior art, repeat no more herein.
In the method flow of the foregoing description one, step 201 and 202 has realized the step 101 of the inventive method, step 203 and step 205 have realized the step 102 of the inventive method, and step 208 and 209 has realized the step 103 of the inventive method, and step 210 has realized the step 104 of the inventive method.
At said method, the present invention also proposes a kind of system that realizes tracing section updating, and as shown in Figure 3, this system mainly comprises:
UE is used for sending the TAU request message to eNodeB; Reception is accepted message from TAU refuse information and the TAU of eNodeB; Initiate initial attaching process according to adhering to indication again to new MME;
ENodeB is used to receive the TAU request message of UE, and in the time need selecting new MME for UE, the TAU request message is transmitted to the new MME that selects; The TAU refuse information and the TAU that receive MME accept message and are transmitted to UE;
New MME is the MME of UE current location, is used for judging according to the TAU request message whether UE has moved to new accounting management zone, position, if, then carry out the optimized choice of PDN GW, send PDN GW to former MME and optimize indication, send to UE and carry the TAU refuse information of adhering to indication again; Be used at attaching process again, connect for UE selects PDN GW in the current service network to set up PDN; Be used for sending the establishment bearing request message to gateway;
Former MME for UE moves the MME of preceding position, is used for optimizing indication according to PDN GW and starts implicit expression attachment removal process;
Gateway is used for the establishment bearing request message starting update load bearing process according to MME.
In actual applications, in order to cooperate the user to select whether to allow in cross-location accounting management zone the demand that changes PDN GW when mobile, new MME also is used for obtaining permission from the contextual information of former MME and changes PDN GW indication, judge according to allowing to change PDN GW indication whether UE allows to change PDNGW, if do not allow, then do not carry out the optimized choice of PDN GW.
In actual applications, if only require UE when moving to another visited network or its home network, just to carry out the optimized choice of PDN GW from a visited network, then new MME also is used for obtaining the local break-out indication from the contextual information of former MME, and judge according to local break-out indication whether UE has used the PDN GW in the former visited network to set up the PDN connection, if not, then do not carry out the optimized choice of PDN GW.
In addition, for the user profile that UE is preserved is upgraded in time after former default bearing resource obtains discharging, new MME also is used for sending the TAU refuse information of carrying default bearing sign deletion indication to UE; Described UE then is used for according to default bearing sign deletion indication deletion and the relevant contextual information of former default bearing sign.
In realizing the system of tracing section updating, the enforcement of each parts can be carried out by certain equipment or device, for the device of MME correspondence, when its during as the MME of UE current location, its internal structure schematic diagram can mainly comprise as shown in Figure 4:
Transmit-Receive Unit 401 is used for the TAU request message of UE41 and is sent to judging unit 402; Receive the Attach Request message of UE41 and be sent to adhesion unit 403; The PDN connection request information and sending that receives UE41 is to PDN connection management unit 404; PDN GW is optimized indication be sent to the MME42 that UE moves preceding position, and will carry the TAU refuse information of adhering to indication again and be sent to UE41; To create bearing request message and be sent to gateway 43, and TAU be accepted message be sent to UE41;
Judging unit 402 is used for judging whether to carry out according to the TAU request message of Transmit-Receive Unit 401 optimized choice of PDNGW, if, then send PDN GW optimize indication and carry adhere to indication again the TAU refuse information to Transmit-Receive Unit 401; Otherwise, send TAU and accept message and create bearing request message to Transmit-Receive Unit 401;
PDN connection management unit 404 is used for the PDN connection request message according to UE, connects for UE sets up PDN.
In the said apparatus, described judging unit 402 comprises at least:
Cross-location accounting management region decision unit 4021 is used for judging according to the TAU request message whether UE41 has moved to new accounting management zone, position; If not, then do not carry out the optimized choice of PDN GW.
In actual applications, if only require UE when moving to another visited network or its home network, just to carry out the optimized choice of PDN GW from a visited network, and whether allow to change PDN GW when allowing UE to cross-location accounting management zone and select, then as shown in Figure 5, said apparatus also comprises:
Contextual information unit 405 is used to deposit the contextual information of UE;
Accordingly, described Transmit-Receive Unit 401 is further used for receiving the contextual information that MME42 that UE moves preceding position sends, and the permission that will wherein comprise changes PDN GW indication and local break-out and indicates and be sent to judging unit 402;
Described judging unit 402 further comprises:
Allow to change PDN GW judging unit 4022, be used for judging according to allowing to change PDN GW indication whether UE allows to change PDN GW,, then do not carry out the optimized choice of PDN GW if do not allow;
Local break-out judging unit 4023 is used for judging according to local break-out indication whether UE41 has used the PDN GW in the former visited network to set up the PDN connection, if not, then do not carry out the optimized choice of PDN GW;
Described adhesion unit 403 is further used for when the PDN GW that uses visited network to distribute sets up the PDN connection, local break-out is set indicates and deposit in the contextual information unit 405;
Described PDN connection management unit 404 is further used for when the PDN GW that uses visited network to distribute sets up the PDN connection, local break-out is set indicates and deposit in the contextual information unit 405.
In actual applications, for the ease of UE upgrading in time to its user profile, described judging unit 402 contains default bearing sign deletion indication in the TAU refuse information that Transmit-Receive Unit 401 sends, so that trigger UE according to this indication deletion and the relevant contextual information of former default bearing sign; Described Transmit-Receive Unit 401 is further used for sending default bearing sign deletion indication to UE.
When the device of MME correspondence was in UE and moves the position at preceding place, its internal structure schematic diagram can mainly comprise as shown in Figure 6:
Transmit-Receive Unit 421 is used for obtaining contextual information from the contextual information unit, and is sent to the MME 40 of UE current location; Be used to receive PDN GW optimization indication, and be sent to implicit expression attachment removal unit 422 from the MME40 of UE current location;
Implicit expression attachment removal unit 422 is used for optimizing indication according to PDN GW and starts implicit expression attachment removal process.
In actual applications, said apparatus can also comprise:
Contextual information unit 423 is used to store the contextual information that comprises the local break-out indication and allow to change PDN GW indication.
It should be noted that, above-mentioned Fig. 4 and two kinds of MME shown in Figure 5 distinguish the structure of MME from view of function, its objective is the not same-action that MME rose that is in diverse location in the tracing section updating process in order to clearly demonstrate, and in actual applications, each MME in the system all might be former MME be again new MME, therefore, the MME in the practical application is the integration of above-mentioned two kinds of structures.
In sum, more than be preferred embodiment of the present invention only, be 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 (14)
1, a kind of method of tracing section updating is characterized in that, this method may further comprise the steps:
A, base station eNodeB when judgement need be selected new Mobility Management Entity MME for UE, are transmitted to new MME with the TAU request message according to the tracing section updating TAU request message that user equipment (UE) sends;
B, new MME obtain contextual information according to the TAU request message from former MME, judge that whether UE has moved to new accounting management zone, position, if then change step c over to, otherwise changes steps d over to;
C, new MME send grouped data network gateway PDN GW to former MME and optimize indication, and carry the TAU refuse information of adhering to indication again according to described contextual information to the UE transmission; Former MME optimizes indication according to PDN GW and starts implicit expression attachment removal process; UE starts attaching process again according to adhering to the new MME of indication triggering again, connects for UE selects the PDN GW of current service network to set up PDN, and the TAU process finishes;
D, new MME trigger gateway starting update load bearing process, send TAU to UE and accept message.
2, method according to claim 1 is characterized in that, further comprises between described step b and the step c:
New MME changes PDN GW indication according to the permission in the described contextual information, judges whether UE allows to change PDN GW, if allow, then changes step c over to, otherwise, change steps d over to.
3, method according to claim 1 and 2 is characterized in that, further comprises between described step b and the step c:
New MME judges according to the indication of the local break-out in the described contextual information whether UE has used the PDN GW in the former visited network to set up the PDN connection, if, then change step c over to, otherwise, change steps d over to;
The indication of described local break-out is that UE is at visited network but not home network adheres to or when setting up PDN and connecting, be provided with and be stored in the contextual information by the MME in the visited network.
4, method according to claim 1 is characterized in that, the TAU refuse information comprises default bearing sign deletion indication among the described step c, and UE is according to default bearing sign deletion indication deletion and the relevant contextual information of former default bearing sign.
5, a kind of system that realizes tracing section updating is characterized in that, this system comprises:
UE is used for sending the TAU request message to eNodeB; Reception is accepted message from TAU refuse information and the TAU of eNodeB; Initiate initial attaching process according to adhering to indication again to new MME;
ENodeB is used to receive the TAU request message of UE, and in the time need selecting new MME for UE, the TAU request message is transmitted to the new MME that selects; The TAU refuse information and the TAU that receive MME accept message and are transmitted to UE;
New MME is used for judging according to the TAU request message whether UE has moved to new accounting management zone, position, if then carry out the optimized choice of PDN GW, sends PDN GW to former MME and optimizes indication, sends to UE and carries the TAU refuse information of adhering to indication again; Be used at attaching process again, connect for UE selects PDN GW in the current service network to set up PDN; Be used for sending the establishment bearing request message to gateway;
Former MME is used for optimizing indication according to PDN GW and starts implicit expression attachment removal process;
Gateway is used for establishment bearing request message starting update load bearing process or establishment load bearing process according to MME.
6, system according to claim 5, it is characterized in that, described new MME is further used for obtaining from the contextual information of former MME and allows to change PDN GW indication, and according to allowing change PDNGW indication to judge whether UE allows to change PDN GW, if not, then do not carry out the optimized choice of PDN GW.
7, according to claim 5 or 6 described systems, it is characterized in that, described new MME is further used for obtaining the local break-out indication from the contextual information of former MME, and judge according to local break-out indication whether UE has used the PDN GW in the former visited network to set up the PDN connection, if not, then do not carry out the optimized choice of PDNGW.
8, system according to claim 5 is characterized in that, described new MME is further used for sending default bearing sign deletion indication to UE, and described default bearing sign deletion indication is contained in the TAU refuse information; Described UE is further used for according to default bearing sign deletion indication deletion and the relevant contextual information of former default bearing sign.
9, a kind of device that is used for tracing section updating is characterized in that, this device comprises:
Transmit-Receive Unit is used to receive the TAU request message of UE and be sent to judging unit; Receive the Attach Request message of UE and be sent to adhesion unit; The PDN connection request information and sending that receives UE is to PDN connection management unit; PDN GW is optimized indication be sent to the MME that UE moves preceding position, and will carry the TAU refuse information of adhering to indication again and be sent to UE; To create bearing request message and be sent to gateway, and TAU be accepted message be sent to UE;
Judging unit is used for judging whether to carry out according to the TAU request message of Transmit-Receive Unit the optimized choice of PDN GW, if, then send PDN GW optimize indication and carry adhere to indication again the TAU refuse information to Transmit-Receive Unit; Otherwise, send TAU and accept message and create bearing request message to Transmit-Receive Unit;
Adhesion unit is used for the Attach Request message according to UE, realizes that the network of UE initially adheres to, and is included as the PDN connection that UE sets up acquiescence;
PDN connection management unit is used for the PDN connection request message according to UE, connects for UE sets up PDN.
10, device according to claim 9 is characterized in that, described judging unit comprises:
Cross-location accounting management region decision unit is used for judging according to the TAU request message whether UE has moved to new accounting management zone, position; If not, then do not carry out the optimized choice of PDN GW.
11, device according to claim 10 is characterized in that, this device further comprises:
The contextual information unit is used to deposit the contextual information of UE;
Described Transmit-Receive Unit is further used for receiving the contextual information that MME that UE moves preceding position sends, and the permission that will wherein comprise changes PDN GW indication and local break-out and indicates and be sent to judging unit;
Described judging unit further comprises:
Allow to change PDN GW judging unit, be used for judging according to allowing to change PDN GW indication whether UE allows to change PDN GW,, then do not carry out the optimized choice of PDN GW if do not allow;
The local break-out judging unit is used for judging according to local break-out indication whether UE has used the PDN GW in the former visited network to set up the PDN connection, if not, then do not carry out the optimized choice of PDN GW;
Described adhesion unit is further used for when the PDN GW that uses visited network to distribute sets up the PDN connection, local break-out is set indicates and deposit in the contextual information unit;
Described PDN connection management unit is further used for when the PDN GW that uses visited network to distribute sets up the PDN connection, local break-out is set indicates and deposit in the contextual information unit.
12, device according to claim 9 is characterized in that, described judging unit contains default bearing sign deletion indication in the TAU refuse information that Transmit-Receive Unit sends;
Described Transmit-Receive Unit is further used for sending default bearing sign deletion indication to UE.
13, a kind of device that is used for tracing section updating is characterized in that, this device comprises:
Transmit-Receive Unit is used for obtaining contextual information from the contextual information unit, and is sent to the MME of UE current location; Be used to receive PDN GW optimization indication, and be sent to implicit expression attachment removal unit from the MME of UE current location;
Implicit expression attachment removal unit is used for optimizing indication according to PDN GW and starts implicit expression attachment removal process.
14, device according to claim 13 is characterized in that, this device further comprises:
The contextual information unit is used to store contextual information, wherein comprises the local break-out indication and allows to change PDN GW indication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101009173A CN101521871B (en) | 2008-02-26 | 2008-02-26 | Method, device and system for updating tracking area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101009173A CN101521871B (en) | 2008-02-26 | 2008-02-26 | Method, device and system for updating tracking area |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101521871A true CN101521871A (en) | 2009-09-02 |
| CN101521871B CN101521871B (en) | 2010-10-27 |
Family
ID=41082197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101009173A Active CN101521871B (en) | 2008-02-26 | 2008-02-26 | Method, device and system for updating tracking area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101521871B (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011054302A1 (en) * | 2009-11-05 | 2011-05-12 | 大唐移动通信设备有限公司 | Location method, apparatus and system |
| CN102083056A (en) * | 2010-01-20 | 2011-06-01 | 大唐移动通信设备有限公司 | Method and equipment for informing index parameter of access technology/frequency of selection priority |
| WO2011082538A1 (en) * | 2010-01-08 | 2011-07-14 | 上海贝尔股份有限公司 | Method and apparatus for mobility optimization based on group in machine-type communications |
| WO2011120464A2 (en) * | 2011-05-06 | 2011-10-06 | 华为技术有限公司 | Method, apparatus and system for controlling user equipment to access network |
| WO2012019554A1 (en) * | 2010-08-12 | 2012-02-16 | 电信科学技术研究院 | Method, device, and system for acquisition of control node information |
| CN102387492A (en) * | 2010-08-27 | 2012-03-21 | 上海贝尔股份有限公司 | Characteristic activation of machinery type communication and machinery equipment |
| CN102448188A (en) * | 2011-12-05 | 2012-05-09 | 新邮通信设备有限公司 | Method for establishing multi-PDN (packet data network) connection in mobile relay and system for realizing same |
| CN102523629A (en) * | 2009-09-18 | 2012-06-27 | 日本电气株式会社 | Communication system and communication controlling method |
| WO2012151951A1 (en) * | 2011-08-22 | 2012-11-15 | 中兴通讯股份有限公司 | Method and system for triggering terminal |
| CN102791010A (en) * | 2012-07-16 | 2012-11-21 | 北京邮电大学 | Heterogeneous system vertical switching method based on dual channel |
| CN103430580A (en) * | 2011-01-21 | 2013-12-04 | 黑莓有限公司 | Network apparatus and process to determine connection context for connections used for (local) offloading |
| WO2014082572A1 (en) * | 2012-11-27 | 2014-06-05 | 华为技术有限公司 | Capability information reporting method and device in mme pool scenario |
| CN102076113B (en) * | 2009-11-19 | 2015-06-03 | 中兴通讯股份有限公司 | Optimization method and system for to-adhering of terminal from network side, and access gateway |
| CN105873010A (en) * | 2015-01-19 | 2016-08-17 | 北京三星通信技术研究有限公司 | Method supporting user equipment to get access to wireless network, network equipment and user equipment |
| CN111510978A (en) * | 2014-05-08 | 2020-08-07 | 交互数字专利控股公司 | Method for redirecting a UE to a dedicated core network node and mobility management entity MME |
| CN112118606A (en) * | 2019-06-21 | 2020-12-22 | 华为技术有限公司 | Method, related device and system for realizing service continuity |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052204B (en) * | 2006-04-03 | 2011-12-28 | 华为技术有限公司 | Reconfiguration method and system for tracking zone, user device and mobility managing entity |
| CN101083830A (en) * | 2006-06-01 | 2007-12-05 | 华为技术有限公司 | Method for transferring users among different core network equipments |
-
2008
- 2008-02-26 CN CN2008101009173A patent/CN101521871B/en active Active
Cited By (39)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102523629A (en) * | 2009-09-18 | 2012-06-27 | 日本电气株式会社 | Communication system and communication controlling method |
| US9565613B2 (en) | 2009-09-18 | 2017-02-07 | Nec Corporation | Communication system and communication controlling method |
| US9247474B2 (en) | 2009-09-18 | 2016-01-26 | Nec Corporation | Communication system and communication controlling method |
| US8891449B2 (en) | 2009-09-18 | 2014-11-18 | Nec Corporation | Communication system and communication controlling method |
| WO2011054302A1 (en) * | 2009-11-05 | 2011-05-12 | 大唐移动通信设备有限公司 | Location method, apparatus and system |
| CN102076113B (en) * | 2009-11-19 | 2015-06-03 | 中兴通讯股份有限公司 | Optimization method and system for to-adhering of terminal from network side, and access gateway |
| WO2011082538A1 (en) * | 2010-01-08 | 2011-07-14 | 上海贝尔股份有限公司 | Method and apparatus for mobility optimization based on group in machine-type communications |
| US9307390B2 (en) | 2010-01-08 | 2016-04-05 | Gemalto Sa | Group based mobility optimization method and device in machine-type communication |
| CN102714838B (en) * | 2010-01-08 | 2014-06-25 | 上海贝尔股份有限公司 | Method and apparatus for mobility optimization based on group in machine-type communications |
| CN102714838A (en) * | 2010-01-08 | 2012-10-03 | 上海贝尔股份有限公司 | Method and apparatus for mobility optimization based on group in machine-type communications |
| CN102083056B (en) * | 2010-01-20 | 2014-04-02 | 电信科学技术研究院 | Method and equipment for informing index parameter of access technology/frequency of selection priority |
| CN102083056A (en) * | 2010-01-20 | 2011-06-01 | 大唐移动通信设备有限公司 | Method and equipment for informing index parameter of access technology/frequency of selection priority |
| WO2011088728A1 (en) * | 2010-01-20 | 2011-07-28 | 电信科学技术研究院 | Informing method and equipment for index parameter of access type/frequency of selection priority |
| US8874094B2 (en) | 2010-01-20 | 2014-10-28 | China Academy Of Telecommunications Technology | Method and device for transferring radio access technology/frequency of select priority |
| CN102378301A (en) * | 2010-08-12 | 2012-03-14 | 电信科学技术研究院 | Method, device and system for obtaining control node information |
| US10560913B2 (en) | 2010-08-12 | 2020-02-11 | China Academy Of Telecommunications Technology | Method, device, and system for acquisition of control node information |
| WO2012019554A1 (en) * | 2010-08-12 | 2012-02-16 | 电信科学技术研究院 | Method, device, and system for acquisition of control node information |
| CN102378301B (en) * | 2010-08-12 | 2015-03-11 | 电信科学技术研究院 | Method, device and system for obtaining control node information |
| WO2012025825A3 (en) * | 2010-08-27 | 2012-04-26 | Alcatel Lucent | Method for feature activation of machine type communication and mtc device thereof |
| CN102387492B (en) * | 2010-08-27 | 2014-01-22 | 上海贝尔股份有限公司 | Characteristic activation of machinery type communication and machinery equipment |
| CN102387492A (en) * | 2010-08-27 | 2012-03-21 | 上海贝尔股份有限公司 | Characteristic activation of machinery type communication and machinery equipment |
| CN103430580A (en) * | 2011-01-21 | 2013-12-04 | 黑莓有限公司 | Network apparatus and process to determine connection context for connections used for (local) offloading |
| WO2011120464A3 (en) * | 2011-05-06 | 2012-04-12 | 华为技术有限公司 | Method, apparatus and system for controlling user equipment to access network |
| WO2011120464A2 (en) * | 2011-05-06 | 2011-10-06 | 华为技术有限公司 | Method, apparatus and system for controlling user equipment to access network |
| WO2012151951A1 (en) * | 2011-08-22 | 2012-11-15 | 中兴通讯股份有限公司 | Method and system for triggering terminal |
| CN102448188A (en) * | 2011-12-05 | 2012-05-09 | 新邮通信设备有限公司 | Method for establishing multi-PDN (packet data network) connection in mobile relay and system for realizing same |
| CN102448188B (en) * | 2011-12-05 | 2014-03-19 | 新邮通信设备有限公司 | Method for establishing multi-PDN (packet data network) connection in mobile relay and system for realizing same |
| CN102791010B (en) * | 2012-07-16 | 2014-11-05 | 北京邮电大学 | Heterogeneous system vertical switching method based on dual channel |
| CN102791010A (en) * | 2012-07-16 | 2012-11-21 | 北京邮电大学 | Heterogeneous system vertical switching method based on dual channel |
| WO2014082572A1 (en) * | 2012-11-27 | 2014-06-05 | 华为技术有限公司 | Capability information reporting method and device in mme pool scenario |
| CN111510978A (en) * | 2014-05-08 | 2020-08-07 | 交互数字专利控股公司 | Method for redirecting a UE to a dedicated core network node and mobility management entity MME |
| CN111510979A (en) * | 2014-05-08 | 2020-08-07 | 交互数字专利控股公司 | Method for redirecting a UE to a dedicated core network node and mobility management entity MME |
| US11228956B2 (en) | 2014-05-08 | 2022-01-18 | Interdigital Patent Holdings, Inc. | Methods and apparatus for selection of dedicated core network |
| CN111510978B (en) * | 2014-05-08 | 2022-06-03 | 交互数字专利控股公司 | Method for redirecting a UE to a dedicated core network node and mobility management entity MME |
| US11716661B2 (en) | 2014-05-08 | 2023-08-01 | Interdigital Patent Holdings, Inc. | Methods and apparatus for selection of dedicated core network |
| CN105873010A (en) * | 2015-01-19 | 2016-08-17 | 北京三星通信技术研究有限公司 | Method supporting user equipment to get access to wireless network, network equipment and user equipment |
| CN105873010B (en) * | 2015-01-19 | 2021-11-23 | 北京三星通信技术研究有限公司 | Method for supporting user equipment to access wireless network, network equipment and user equipment |
| CN112118606A (en) * | 2019-06-21 | 2020-12-22 | 华为技术有限公司 | Method, related device and system for realizing service continuity |
| US11889297B2 (en) | 2019-06-21 | 2024-01-30 | Huawei Technologies Co., Ltd. | Method, apparatus and system for service continuity between a 4G network and a 5G network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101521871B (en) | 2010-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101521871B (en) | Method, device and system for updating tracking area | |
| US8811984B2 (en) | Area-based access control method for terminals which carry out M2M communications in a wireless communication system | |
| CN102457938B (en) | The method and system of terminal access restriction | |
| CN101594647B (en) | Method for switching SR VCC service and apparatus thereof | |
| CN101282511B (en) | Bearing processing method | |
| CN101150838B (en) | A method and system for inter-system switching | |
| CN101094497B (en) | Method for switching mobile users between different access systems | |
| CN101978716A (en) | Method for optimizing a user equipment pdn (packet data network) connection | |
| CN101557573B (en) | Emergency service information obtaining method and communication equipment | |
| CN101127652B (en) | A method, device and system for identifying access anchor of user terminal to external network | |
| CN101459907B (en) | Method for indicating service gateway bearing management | |
| EP2381736B1 (en) | Method and system to establish relation between service network element and mme and user equipment | |
| CN101472259B (en) | Method and device for triggering policy control and charging function | |
| CN102355743B (en) | Management method and management device for UE (User Equipment) context information | |
| CN101325583B (en) | Method for registering gateway address and mobility management entity | |
| CN104105086A (en) | Selection method and device of Prose Server, and user registration method and device | |
| CN101572862B (en) | Method and equipment for supporting intercommunication between 3G system and LTE system | |
| CN101296496B (en) | Method for preventing false resource release in tracing section updating or switching course | |
| CN102201930B (en) | MTC device is carried out the method and system of grouping management | |
| CN103796190A (en) | Method and system for distinguishing users | |
| CN103856968A (en) | PCC rule obtaining method and device after Gx interfaces break down | |
| CN107925662A (en) | Method and apparatus for the Lawful Interception of adjacent service | |
| CN101568093B (en) | Updating method of domestic base station information accessed by permission of UE | |
| CN102858026B (en) | A kind of method of triggering ad-hoc location terminal, system and terminal | |
| CN102111852A (en) | Method and device of achieving mobility limit |
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 |