CN102036377A - Method, system and network element for initiating active paging - Google Patents
Method, system and network element for initiating active paging Download PDFInfo
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- CN102036377A CN102036377A CN2011100288814A CN201110028881A CN102036377A CN 102036377 A CN102036377 A CN 102036377A CN 2011100288814 A CN2011100288814 A CN 2011100288814A CN 201110028881 A CN201110028881 A CN 201110028881A CN 102036377 A CN102036377 A CN 102036377A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/005—Transmission of information for alerting of incoming communication
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- H04W76/18—Management of setup rejection or failure
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Abstract
The invention provides a method, a system and a network element for initiating active paging, belonging to the field of communication. The method comprises the following steps that a first network element receives a downstream data notification message sent by a service gateway, wherein the downstream data notification message contains a carrier mark; and the first network element judges whether the carrier mark exists in a carrier context stored by the first network element or not; if not, the first network element sends an error of a nonexistent carrier corresponding to the carrier mark to the service gateway, then the service gateway sends a notification of the nonexistent carrier to a public data network gateway, and the public data network gateway stops sending downstream data to the service gateway through the carrier and release resources of the carrier; and if the carrier mark exists, the first network element initiates paging. The invention can report that the carrier does not exist to the service gateway when paging fails due to asynchronous MME/SGSN in the carrier context, and PDN GW stops sending the downstream data to SGW to save the network resources.
Description
Technical field
The present invention relates to the communications field, particularly a kind of method, system and network element that is used to initiate initiatively paging.
Background technology
In existing 3GPP (3rd Generation Partnership Project, third generation partner program) agreement, among the EPS (Evolved Packet System, evolved packet system), adopt new core network architecture.Referring to Fig. 1, comprise UTRAN (UniversalTelecommunication Radio Access Network in this new core network architecture, the all purpose communication Radio Access Network) and E-UTRAN (Evolved Universal Telecommunication Radio Access Network, the all purpose communication Radio Access Network of evolution) two kinds of access networks, the user mobility control and management entity that UTRAN and E-UTRAN are corresponding respectively, be SGSN (Serving General Packet Radio Service Support Node, the packet wireless business serving GPRS support node) and MME (Mobility Management Entity, Mobility Management Entity) be common the existence.As UE (User Equipment, when subscriber equipment) being linked into UTRAN or E-UTRAN, UTRAN or E-UTRAN will select a SGSN or MME for UE, SGSN or MME are that UE selects a SGW (Serving Gateway, gateway) and PDN GW (PublicData Networks Gateway, public data network gateway).
The EPS carrying is meant the logic polymerization of the one or more SDF (Service Data Flow, business data flow) between UE and PDN GW, in communication network, in order to save Internet resources, UE does not set up carrying with gateway usually under idle condition, when UE is used, set up carrying again.Comprise that when setting up carrying dual mode, wherein a kind of mode are that UE initiatively sends connection request to SGW, for example the process of user's Outgoing Call.Another kind of mode is that SGW carries out active paging to UE, the called process of user mobile phone for example, and SGW will be by initiatively triggering MME/SGSN initiation paging, and the process of setting up of this paging is called Paging.
Initiatively triggering MME/SGSN with SGW carries out initiatively paging explanation SGW in the mechanism of existing 3GPP agreement and carries out after the method for paging: SGW initiatively receives the downlink data Downlink Data that is sent by certain carrying by PDN GW, send downlink data notification message Downlink DataNotification to MME/SGSN, notice MME/SGSN should carry downlink data, after MME/SGSN receives DownlinkData Notification, initiate paging.
But the inventor finds that there is following shortcoming at least in above-mentioned prior art:
In the prior art in initiating paging, owing to the nonsynchronous reason of bearer context, might cause to carry among the MME/SGSN and delete, but should carry situation about still existing between PDN GW and the MME/SGSN, after MME/SGSN receives Downlink Data Notification, find that carrying did not exist, then initiate paging failure, PDN GW still can send downlink data to SGW always before not receiving the response of creating the paging success, can take Internet resources, waste bandwidth like this.
Summary of the invention
In order to solve the problem that prior art median surface engine exists, the present invention proposes a kind of method, system and network element that is used to initiate initiatively paging.Described technical scheme is as follows:
The present invention proposes a kind of initiatively method of paging that is used to initiate, described method comprises:
First network element receives the downlink data notification message that gateway sends, and comprises bearing identification in the described downlink data notification message;
Judge in the bearer context of self storing and whether have described bearing identification;
If there is no, then send the non-existent mistake of carrying of described bearing identification correspondence to described gateway, make described gateway send the non-existent notice of described carrying so that described public data network gateway stops to send downlink data by described carrying to described gateway, and discharge the resource of described carrying to the public data network gateway;
If exist, initiate paging.
Further, describedly send the non-existent mistake of carrying of described bearing identification correspondence, specifically comprise to described gateway:
The non-existent mistake of the carrying of described bearing identification correspondence is joined in the downlink data notification response message, send described downlink data notification response message to described gateway.
Further, described public data network gateway stopped by described carrying before described gateway sends downlink data, and described method also comprises:
Described gateway judges that idle state signaling reduces ISR and whether activates;
If described ISR un-activation then sends the non-existent notice of described carrying to described public data network gateway:
If described ISR activates, judge whether to receive the mistake of the paging failure that receives the transmission of second network element, if receive the mistake of the paging failure of described second network element transmission, then send the non-existent notice of described carrying so that described public data network gateway stops to send downlink data by described carrying to described gateway to described public data network gateway.
Further, describedly judge whether to receive before the non-existent mistake of carrying that receives the described bearing identification correspondence that second network element sends, described method also comprises:
Described second network element receives the described downlink data notification message that described gateway sends, and comprises described bearing identification in the described downlink data notification message;
Described second network element judges in the bearer context of self storing whether have described bearing identification;
If there is no, send the mistake of paging failure to described gateway;
If exist, initiate paging.
Further, described first network element is GPRS serving GPRS support node SGSN, and described second network element is a mobile management entity MME;
Or,
Described first network element is a mobile management entity MME, and described second network element is GPRS serving GPRS support node SGSN.
Further, described described public data network gateway is stopped by described carrying after described gateway sends downlink data, described method also comprises:
Described gateway sends the message of the described carrying of request deletion to described public data network gateway.
A kind of system that is used to initiate the active paging, described system comprises first network element, gateway;
Wherein, described first network element specifically comprises:
First receiver module is used to receive the downlink data notification message that gateway sends, and comprises bearing identification in the described downlink data notification message;
First judge module is used for judging whether the bearer context of described first network element self storage exists described bearing identification;
First processing module, be used for when the judged result of described first judge module when not having described bearing identification, send the non-existent mistake of carrying of described bearing identification correspondence to described gateway;
Second processing module, the judged result that is used for when described first judge module is when having the carrying of described bearing identification correspondence, initiates paging;
Described gateway specifically comprises:
Stopping modular, be used for after the non-existent mistake of carrying of the described bearing identification correspondence that receives described first processing module transmission, send the non-existent notice of described carrying so that described public data network gateway stops to send downlink data by described carrying to described gateway to the public data network gateway, and discharge the resource of described carrying.
Further, described first processing module specifically comprises:
Add the unit, when being used for judged result when described first judge module and being described first network element and not having described bearing identification, the non-existent mistake of the carrying of described bearing identification correspondence is joined in the downlink data notification response message;
The mistake transmitting element is used for to the downlink data notification response message of described gateway transmission after described adding unit joins the downlink data notification response message with the non-existent mistake of the carrying of described bearing identification correspondence.
Further, described gateway also comprises:
Second judge module, being used at described stopping modular described public data network gateway being sent stopped by described carrying before described gateway sends downlink data, judge that idle state signaling reduces ISR and whether activates, if described ISR un-activation then notifies described stopping modular to make described public data network gateway stop to send downlink data by described carrying to described gateway;
The 3rd judge module, be used for when described second judge module is judged described ISR and activated, judge whether to receive the mistake of the paging failure that receives the transmission of second network element, if receive the mistake of the paging failure of described second network element transmission, then notify described stopping modular to make described public data network gateway stop to send downlink data to described gateway by described carrying.
Further, described system also comprises second network element, and described second network element specifically comprises:
Second receiver module, be used for before described the 3rd judge module judges whether to receive the non-existent mistake of carrying of the described bearing identification correspondence that second network element sends, receive described gateway and send downlink data notification message, comprise bearing identification in the described downlink data notification message;
The 4th judge module is used for judging whether the bearer context of described second network element self storage exists described bearing identification;
The 3rd processing module is used for sending the mistake of paging failure to described the 3rd judge module when there is not described bearing identification in bearer context that described the 4th judge module is judged described second network element self storage;
The manages module everywhere, is used for initiating paging when there is described bearing identification in bearer context that described the 4th judge module is judged described second network element self storage.
Further, described first network element is GPRS serving GPRS support node SGSN, and described second network element is a mobile management entity MME;
Or,
Described first network element is a mobile management entity MME, and described second network element is GPRS serving GPRS support node SGSN.
Further, described gateway also comprises:
Removing module is used for making described public data network gateway stop by described carrying sending the message of the described carrying of request deletion to described public data network gateway after described gateway sends downlink data at described stopping modular.
A kind of network element, described network element comprises:
Receiver module is used to receive the downlink data notification message that gateway sends, and comprises bearing identification in the described downlink data notification message;
Judge module is used for judging whether the bearer context of self storing exists described bearing identification;
The fault processing module, be used for judging when not having described bearing identification when described judge module, send the non-existent mistake of carrying of described bearing identification correspondence to described gateway, make described gateway send the non-existent notice of described carrying so that described public data network gateway stops to send downlink data by described carrying to described gateway, and discharge the resource of described carrying to the public data network gateway;
The paging module is used for judging when self having described bearing identification when described judge module, initiates paging.
Further, described fault processing module specifically comprises:
Mistake adds the unit, be used for when the judged result of described judge module when not having described bearing identification, the non-existent mistake of the carrying of described bearing identification correspondence is joined in the downlink data notification response message;
The mistake transmitting element is used for sending through the described wrong downlink data notification response message that adds after the unit joins the downlink data notification response message with the non-existent mistake of the carrying of described bearing identification correspondence to described gateway.
The beneficial effect of the technical scheme that the embodiment of the invention provides is: a kind of method, system and network element that is used to initiate initiatively paging, can because of MME/SGSN in that bearer context is asynchronous when initiating paging failure, do not exist to gateway report carrying, and stop PDN GW and send downlink data to SGW, to save Internet resources.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, to and do simply and introduce the accompanying drawing that uses among the embodiment below, apparently, below listed accompanying drawing only be some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
New core network architecture figure among the EPS that is provided in the background technology of the present invention is provided Fig. 1;
Fig. 2 a kind ofly is used to initiate the initiatively flow chart of the method for paging for what the embodiment of the invention 1 provided;
Fig. 3 a kind ofly is used to initiate the initiatively flow chart of the method for paging for what the embodiment of the invention 2 provided;
Fig. 4 a kind ofly is used to initiate the initiatively structural representation of the system of paging for what the embodiment of the invention 3 provided;
Fig. 5 a kind ofly is used for initiating the initiatively structural representation of first processing module of the system of paging for what the embodiment of the invention 3 provided;
Fig. 6 a kind ofly is used to initiate initiatively second kind of structural representation of the system of paging for what the embodiment of the invention 3 provided;
Fig. 7 a kind ofly is used to initiate initiatively the third structural representation of the system of paging for what the embodiment of the invention 3 provided;
Fig. 8 a kind ofly is used to initiate initiatively the 4th kind of structural representation of the system of paging for what the embodiment of the invention 3 provided;
The structural representation of a kind of network element that Fig. 9 is provided for the embodiment of the invention 4;
The structural representation of fault processing module in a kind of network element that Figure 10 is provided for the embodiment of the invention 4.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
Embodiment 1
The embodiment of the invention 1 has proposed a kind of initiatively method of paging that is used to initiate, and its flow process comprises as shown in Figure 2:
The embodiment of the invention has proposed a kind of initiatively method of paging that is used to initiate, can because of MME/SGSN in that bearer context is asynchronous when causing paging failure, do not exist to gateway report carrying, and stop PDN GW and send downlink data, to save Internet resources to SGW.
Embodiment 2
The embodiment of the invention 2 has proposed a kind of initiatively method of paging that is used to initiate, and is to improve on embodiment 1 basis, and its flow process comprises as shown in Figure 3:
In the present embodiment, be arranged among the gateway SGW and can set up carrying with first network element or second network element the UE that activates ISR, and, be MME with first network element, second network element is that SGSN is that example describes.
Need to prove that when SGW sent downlink data Downlink Data, this carrying was obtained by the mapping distribution by PDN GW PDN GW by carrying, this mapping assigning process is a prior art, repeats no more here.
Need to prove, among the above-mentioned downlink data notification message Downlink Data Notification, carry the bearing identification EPS Bearer ID of above-mentioned carrying, in order to downlink data Downlink Data to be arranged in above-mentioned carrying to MME and SGSN indication.
Wherein, above-mentioned carrying promptly refers to the carrying of above-mentioned bearing identification EPS Bearer ID correspondence, below embodiment all identical.
Need to prove whether MME exists above-mentioned EPSBearer ID to determine whether to exist the above-mentioned carrying of above-mentioned EPS Bearer ID correspondence by judging in the bearer context of self storing.
The non-existent mistake of above-mentioned carrying is joined in the downlink data notification response message, specifically comprises:
Add new cause value cause at downlink data notification response message Downlink Data Notification Acknowledge, and the non-existent mistake of above-mentioned carrying is made as Bearer not found, Bearer notfound is included among the downlink data notification response message Downlink Data NotificationAcknowledge as new cause value sends to SGW.
In the present embodiment, after self there is not above-mentioned bearing identification in the MME judgement, initiate paging failure, and return the mistake of Bearer not found, help the processing of network like this, save Internet resources, wherein the practical communication situation, when SGW returns the non-existent notification message of carrying, should comprise the sign of above-mentioned carrying at MME in this notification message.。
Need to prove, in EPS, adopted new core network architecture, the user mobility control and management entity that the enhancing data transfer rate Radio Access Network (UTRAN/GERAN) of universal terrestrial access network/global system for mobile communications in this core network architecture/global system for mobile communications evolution and two kinds of connecting systems of evolved universal terrestrial radio access network (E-UTRAN) are corresponding respectively is that service universal packet wireless business affair node SGSN and Mobility Management Entity MME are common the existence.For the user who adapts under the new core network architecture moves Guan Xingli, a kind of idle state signaling optimization (ISR) technology has been proposed, the signaling amount of mobility management process when the UE that can reduce idle condition resides at the borderline region of UTRAN/GERAN and two kinds of connecting systems of E-TURAN in the evolved packet system.When UE inactive I SR function, only there is a user mobility management control entity to serve this UE.
In the present embodiment, SGW judges whether to receive the wrong concrete of paging failure that SGSN sends: SGSN judges in the bearer context of self storing whether have above-mentioned bearing identification, if exist, then initiate paging, if there is no, then set up paging failure, return the mistake of paging failure to SGW.SGSN judges that method that whether above-mentioned carrying exist judges that with MME the method whether above-mentioned carrying exist is identical, repeats no more here.
After step 207, before the step 208, this method also comprises: SGW sends the message of the above-mentioned carrying of request deletion to PDN GW.
Wherein, the process that PDN GW deletes above-mentioned carrying is a prior art, repeats no more here.
Wherein, follow-up paging is a prior art, repeats no more here.
Need to prove, in existing 3GPP agreement, MME/SGSN may be owing to the reason of overload (overload), after receiving the deleting bearing request that SGW sends (Delete Bearer Request) message, can not delete corresponding carrying timely, and to wait for the long period, just handle this message, and at this moment SGW may retransmit this message repeatedly, when deleting bearing request-reply (Delete Bearer Response) message is finished and is returned in MME/SGSN deletion by the time to SGW, SGW may think the deletion failed, still maintain this carrying on the SGW, can cause the bearer context on MME/SGSN and the SGW asynchronous like this, PDN GW can not obtain this and carry deleted message, at this moment, this carrying is invalid, but, can not send PDN GW the order of this carrying of deletion because not knowing this message, caused the waste of resources in network, the method of the gateway indication paging failure that the present invention proposes, can inform the PDNGW paging failure, and delete this carrying, save Internet resources.
After this step is deleted above-mentioned carrying, can also comprise that PDN GW rebulids the process of carrying according to prior art.
In the present embodiment, be MME with first network element, second network element is that SGSN is that example describes, and correspondingly, is SGSN with first network element, second network element is that MME also meets above-mentioned flow process.
The embodiment of the invention has proposed a kind of initiatively method of paging that is used to initiate, can because of MME/SGSN in that bearer context is asynchronous when causing initiating paging failure, do not exist to gateway report carrying, and stop PDN GW and send downlink data, to save Internet resources to SGW.
Embodiment 3
The embodiment of the invention 3 has proposed a kind of initiatively system of paging that is used to initiate, its structure as shown in Figure 4, said system comprises first network element 1, gateway 2;
Wherein, first network element 1 specifically comprises:
Described gateway tool 2 bodies comprise:
Stopping modular 201, be used for after the non-existent mistake of carrying that receives the above-mentioned bearing identification correspondence that first processing module 103 sends, send the non-existent notice of above-mentioned carrying so that the public data network gateway stops to send downlink data and discharging the resource of above-mentioned carrying to gateway by above-mentioned carrying to the public data network gateway.
Further, as shown in Figure 5, first processing module 103 specifically comprises:
Add unit 1031, be used for when the judged result of first judge module when not having described bearing identification, the non-existent mistake of the carrying of above-mentioned bearing identification correspondence is joined in the downlink data notification response message;
Mistake transmitting element 1032 is used for sending through adding the downlink data notification response message after unit 1031 joins the downlink data notification response message with the non-existent mistake of the carrying of above-mentioned bearing identification correspondence to gateway 2.
Further, as shown in Figure 6, gateway 2 also comprises:
The 3rd judge module 203, be used for when second judge module 202 is judged the ISR activation, judge whether to receive the mistake of the paging failure that receives the transmission of second network element, if receive the mistake of the paging failure of second network element transmission, then notify stopping modular 2 to make the public data network gateway stop to send downlink datas to gateway 2 by above-mentioned carrying.
Correspondingly, as shown in Figure 7, said system comprises that also second network element, 3, the second network elements 3 specifically comprise:
The 4th judge module 302 is used for judging whether the bearer context that second network element 3 self is stored exists above-mentioned bearing identification;
The 3rd processing module 303 is used for sending the mistake of paging failures to the 3rd judge module 203 when there is not above-mentioned bearing identification in bearer context that the 4th judge module 302 is judged second network element 3 self storage;
The manages module 304 everywhere, is used for initiating paging when there is above-mentioned bearing identification in bearer context that the 4th judge module 302 is judged second network element 3 self storage.
Further, above-mentioned first network element 1 is GPRS serving GPRS support node SGSN, and second network element 2 is a mobile management entity MME;
Or,
First network element 1 is a mobile management entity MME, and second network element 2 is GPRS serving GPRS support node SGSN.
Further, as shown in Figure 8, gateway 2 also comprises:
Removing module 204 is used for making the public data network gateway stop by above-mentioned carrying sending the message of the above-mentioned carrying of request deletion to the public data network gateway after gateway 2 sends downlink data at stopping modular 201.
The embodiment of the invention has proposed a kind of initiatively system of paging that is used to initiate, can because of MME/SGSN in that bearer context is asynchronous when causing paging failure, do not exist to gateway report carrying, and stop PDN GW and send downlink data, to save Internet resources to SGW.
Need to prove: a kind of system that is used to initiate the active paging that the foregoing description provides, only the division with above-mentioned each functional module is illustrated, in the practical application, can as required the above-mentioned functions distribution be finished by different functional modules, the internal structure of the system of being about to is divided into different functional modules, to finish all or part of function described above.In addition, a kind of system that is used to initiate initiatively paging that the foregoing description provides and a kind of method embodiment that is used to initiate the active paging belong to same design, and its specific implementation process sees method embodiment for details, repeats no more here.
Embodiment 4
As shown in Figure 9, present embodiment provides a kind of network element, and this network element comprises:
Further, as shown in figure 10, fault processing module 403 specifically comprises:
Mistake adds unit 4031, be used for when the judged result of judge module 402 when not having above-mentioned bearing identification, the non-existent mistake of the carrying of above-mentioned bearing identification correspondence is joined in the downlink data notification response message;
Mistake transmitting element 4032 is used for to the downlink data notification response message of gateway transmission after mistake adding unit 4031 joins the downlink data notification response message with the non-existent mistake of the carrying of above-mentioned bearing identification correspondence.
A kind of network element that present embodiment provided, can because of MME/SGSN in that bearer context is asynchronous when causing paging failure, do not exist to gateway report carrying, and stop PDN GW and send downlink data, to save Internet resources to SGW.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
All or part of step in the embodiment of the invention can utilize software to realize that corresponding software programs can be stored in the storage medium that can read, as CD or hard disk etc.
Below only be preferred embodiment of the present invention, or not within the spirit and principles in the present invention not all in order to restriction the present invention, 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. one kind is used to initiate the initiatively method of paging, it is characterized in that described method comprises:
First network element receives the downlink data notification message that gateway sends, and comprises bearing identification in the described downlink data notification message;
Judge in the bearer context of self storing and whether have described bearing identification;
If there is no, then send the non-existent mistake of carrying of described bearing identification correspondence to described gateway, make described gateway send the non-existent notice of described carrying so that described public data network gateway stops to send downlink data by described carrying to described gateway, and discharge the resource of described carrying to the public data network gateway;
If exist, initiate paging.
2. method according to claim 1 is characterized in that, describedly sends the non-existent mistake of carrying of described bearing identification correspondence to described gateway, specifically comprises:
The non-existent mistake of the carrying of described bearing identification correspondence is joined in the downlink data notification response message, send described downlink data notification response message to described gateway.
3. method according to claim 1 is characterized in that, described public data network gateway stopped by described carrying before described gateway sends downlink data, and described method also comprises:
Described gateway judges that idle state signaling reduces ISR and whether activates;
If described ISR un-activation then sends the non-existent notice of described carrying to described public data network gateway;
If described ISR activates, judge whether to receive the mistake of the paging failure that receives the transmission of second network element, if receive the mistake of the paging failure of described second network element transmission, then send the non-existent notice of described carrying so that described public data network gateway stops to send downlink data by described carrying to described gateway to described public data network gateway.
4. method according to claim 3 is characterized in that, describedly judges whether to receive before the non-existent mistake of carrying that receives the described bearing identification correspondence that second network element sends, and described method also comprises:
Described second network element receives the described downlink data notification message that described gateway sends, and comprises described bearing identification in the described downlink data notification message;
Described second network element judges in the bearer context of self storing whether have described bearing identification;
If there is no, send the mistake of paging failure to described gateway;
If exist, initiate paging.
5. according to claim 3 or 4 described methods, it is characterized in that described first network element is GPRS serving GPRS support node SGSN, described second network element is a mobile management entity MME;
Or,
Described first network element is a mobile management entity MME, and described second network element is GPRS serving GPRS support node SGSN.
6. method according to claim 1 is characterized in that, described described public data network gateway is stopped by described carrying after described gateway sends downlink data, and described method also comprises:
Described gateway sends the message of the described carrying of request deletion to described public data network gateway.
7. one kind is used to initiate the initiatively system of paging, it is characterized in that described system comprises first network element, gateway;
Wherein, described first network element specifically comprises:
First receiver module is used to receive the downlink data notification message that gateway sends, and comprises bearing identification in the described downlink data notification message;
First judge module is used for judging whether the bearer context of described first network element self storage exists described bearing identification;
First processing module, be used for when the judged result of described first judge module when not having described bearing identification, send the non-existent mistake of carrying of described bearing identification correspondence to described gateway;
Second processing module, the judged result that is used for when described first judge module is when having the carrying of described bearing identification correspondence, initiates paging;
Described gateway specifically comprises:
Stopping modular, be used for after the non-existent mistake of carrying of the described bearing identification correspondence that receives described first processing module transmission, send the non-existent notice of described carrying so that described public data network gateway stops to send downlink data by described carrying to described gateway to the public data network gateway, and discharge the resource of described carrying.
8. system according to claim 7 is characterized in that, described first processing module specifically comprises:
Add the unit, be used for when the judged result of described first judge module when not having described bearing identification, the non-existent mistake of the carrying of described bearing identification correspondence is joined in the downlink data notification response message;
The mistake transmitting element is used for to the downlink data notification response message of described gateway transmission after described adding unit joins the downlink data notification response message with the non-existent mistake of the carrying of described bearing identification correspondence.
9. system according to claim 7 is characterized in that, described gateway also comprises:
Second judge module, being used at described stopping modular described public data network gateway being sent stopped by described carrying before described gateway sends downlink data, judge that idle state signaling reduces ISR and whether activates, if described ISR un-activation then notifies described stopping modular to make described public data network gateway stop to send downlink data by described carrying to described gateway;
The 3rd judge module, be used for when described second judge module is judged described ISR and activated, judge whether to receive the mistake of the paging failure that receives the transmission of second network element, if receive the mistake of the paging failure of described second network element transmission, then notify described stopping modular to make described public data network gateway stop to send downlink data to described gateway by described carrying.
10. system according to claim 9 is characterized in that described system also comprises second network element, and described second network element specifically comprises:
Second receiver module, be used for before described the 3rd judge module judges whether to receive the non-existent mistake of carrying of the described bearing identification correspondence that second network element sends, receive described gateway and send downlink data notification message, comprise bearing identification in the described downlink data notification message;
The 4th judge module is used for judging whether the bearer context of described second network element self storage exists described bearing identification;
The 3rd processing module is used for sending the mistake of paging failure to described the 3rd judge module when there is not described bearing identification in bearer context that described the 4th judge module is judged described second network element self storage;
The manages module everywhere, is used for initiating paging when there is described bearing identification in bearer context that described the 4th judge module is judged described second network element self storage.
11., it is characterized in that described first network element is GPRS serving GPRS support node SGSN according to claim 9 or 10 described systems, described second network element is a mobile management entity MME;
Or,
Described first network element is a mobile management entity MME, and described second network element is GPRS serving GPRS support node SGSN.
12. system according to claim 7 is characterized in that, described gateway also comprises:
Removing module is used for making described public data network gateway stop by described carrying sending the message of the described carrying of request deletion to described public data network gateway after described gateway sends downlink data at described stopping modular.
13. a network element is characterized in that, described network element comprises:
Receiver module is used to receive the downlink data notification message that gateway sends, and comprises bearing identification in the described downlink data notification message;
Judge module is used for judging whether the bearer context of self storing exists described bearing identification;
The fault processing module, be used for judging when not having described bearing identification when described judge module, send the non-existent mistake of carrying of described bearing identification correspondence to described gateway, make described gateway send the non-existent notice of described carrying so that described public data network gateway stops to send downlink data by described carrying to described gateway, and discharge the resource of described carrying to the public data network gateway;
The paging module is used for judging when self having described bearing identification when described judge module, initiates paging.
14. network element according to claim 13 is characterized in that, described fault processing module specifically comprises:
Mistake adds the unit, be used for when the judged result of described judge module when not having described bearing identification, the non-existent mistake of the carrying of described bearing identification correspondence is joined in the downlink data notification response message;
The mistake transmitting element is used for sending through the described wrong downlink data notification response message that adds after the unit joins the downlink data notification response message with the non-existent mistake of the carrying of described bearing identification correspondence to described gateway.
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