CN102300271A - Method and equipment for sending charging request - Google Patents
Method and equipment for sending charging request Download PDFInfo
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- CN102300271A CN102300271A CN2011102844608A CN201110284460A CN102300271A CN 102300271 A CN102300271 A CN 102300271A CN 2011102844608 A CN2011102844608 A CN 2011102844608A CN 201110284460 A CN201110284460 A CN 201110284460A CN 102300271 A CN102300271 A CN 102300271A
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Abstract
The embodiment of the invention discloses a method and equipment for sending a charging request, which relate to the technical field of wireless communication and are used for solving the problem of how to send a charging request message to a charging data function (CDF) module by using a charging trigger function (CTF) module of a public data network gateway (PGW) when a plurality of packet data protocol (PDP) context updating reasons or carrier updating reasons exist. The method comprises the following steps of: when a plurality of PDP context updating reasons or carrier updating reasons exist, selecting a PDP context updating reason or carrier updating reason from the plurality of PDP context updating reasons or carrier updating reasons according to the preset priority information of the PDP context updating reasons or carrier updating reasons by using the CTF module; and sending a charging request message carrying the selected PDP context updating reason or carrier updating reason to the CDF module. Due to the adoption of the invention, the problem can be solved.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of charging request sending method and equipment.
Background technology
Agreement TS 23.401 has described Serving GPRS Support Node (Serving GPRS Support Node, switch between system SGSN), such as evolved universal terrestrial radio access network (Evolved Universal Terrestrial Radio Access Network, E-UTRAN) to GSM EDGE Radio Access Network (GSM EDGE Radio Access Network, the GERAN) switching between the system.Wherein, GPRS is GPRS (General Packet Radio Service), GSM is global system for mobile communications (G1obal System for Mobile Communications), and EDGE is the enhancing data transfer rate (Enhanced Data rates for GSM Evolution GSM) of evolution.
At user terminal (UE) in E-UTRAN system following time, packet data gateway (PDN GW, that PGW) connect is gateway (Serving GW, SGW), wireless access type is E-UTRAN, and when switching to the GERAN system, PGW presents Gateway GPRS Support Node (Gateway GPRS Support Node, GGSN) function, the interface between itself and the SGSN is the Gn/Gp interface, wireless access type is GERAN.In this process, also may be accompanied by the change in customer position information, user time zone etc.In the handoff procedure of GERAN system, the ticket type that PGW generates all is packet data gateway-charging data record (PGW-CDR) in EUTRAN system and EUTRAN system.In the initial attaching process of terminal, the PGW-CDR ticket is opened, between system in the handoff procedure, the PGW-CDR ticket is updated, if reached the condition that ticket is closed, then the PGW-CDR ticket of opening in the attaching process is closed, be opened with stylish PGW-CDR ticket.
Flow process is described as shown in Figure 1, in initially adhering to foundation carrying flow process:
Step 1: Mobility Management Entity (MME) sends conversation establishing request (Create Session Request) message and gives SGW, wherein carry wireless access type (Radio Access Type, Rat), user time zone parameters such as (MS Time Zone).
Step 2:SGW sends Create Session Request message to PGW, passing to PGW from the above-mentioned parameter that MME receives.
Step 3:PGW sends conversation establishing response (Create Session Response) message to SGW, and opens the PGW-CDR ticket.
Step 4:SGW sends Create Session Response message to MME.
Step 5:MME sends bearing modification request (Modify Bearer Request) message to SGW.
Step 6:SGW sends bearing modification response (Modify Bearer Response message to MME.
In this process, PGW has obtained customer position information, user's time-zone information and Public Land Mobile Nerwork (Public Land Mobile Network, PLMN) information, when the user when E-UTRAN switches to the GERAN mode network, SGSN will send block data protocol context update request (Update PDP Context Request) message to the PGW that supports the GGSN function, can carry the Rat parameter in this message, in this flow process, also may be accompanied by change of user time zone or customer position information and upgrade.The E-UTRAN system to the switching flow of GERAN system as shown in Figures 2 and 3, Fig. 2 carries out the preparatory stage flow chart for switching, Fig. 3 is the handover execution stage flow chart.As shown in Figure 3:
Step 1: new SGSN sends Update PDP Context Request message to SGW, wherein carries parameters such as Rat, MS Time Zone.
Step 2:PGW sends block data protocol context response (Update PDP Context Response) message to new SGSN, and closes opened PGW-CDR, reopens new PGW-CDR.
Concrete, after PGW receives the Update PDP Context Request message of new SGSN transmission, the charging triggering function of PGW (Charging Trigger Function, CTF) module need be to charging data function (Charging Data Function, CDF) module sends request (Accounting-Request) message of chargeing, because in PDP Context renewal process, wireless access type, customer position information, the user time zone all might change, cause the renewal of PGW-CDR, then change condition (Change-Condition) parameter of CTF module in the Accounting-Request message that the CDF module sends need embody the PDP Context reason for renewing.
And save according to the 7.2.25A of agreement TS32.29-8e0, be used to embody value corresponding relation such as the following table that PDP Context upgrades the Change-Condition parameter of reason:
Table 1
The condition changing parameter that above-mentioned scene relates to may have three kinds of situations of value 7,8,9, if just wherein a kind of condition satisfies, then can in the light of actual conditions fill in the Change-Condition parameter, but when the two or more conditions in these several conditions satisfy simultaneously, how the Change-Condition parameter fills in, not explanation in agreement may cause the Change-Condition parameter to fill in inaccurate or can not correctly reflect the change of user's condition.Equally, also there is similar problem in GERAN to the switching of E-UTRAN system.
In realizing process of the present invention, the inventor finds to exist in the prior art following technical problem:
Current agreement has only provided at a kind of PDP Context upgrades the Change-Condition parameter of how to fill in when reason or bearer update reason occur in the charging request message, do not provide the specific implementation method and upgrade the Change-Condition parameter of how to fill in the charging request message when reason or bearer update reason occur, and then make the CTF module of PGW does not know how to send charging request message to the CDF module yet at multiple PDP Context.
Summary of the invention
The embodiment of the invention provides a kind of charging request sending method and equipment, is used for solving that to upgrade reason or bearer update at PDP Context former because when a plurality of, and how the CTF module of PGW sends the problem of charging request message to the CDF module.
A kind of charging request sending method, this method comprises:
Charging triggering function CTF module receiving block data agreement PDP Context update request or the bearer update request of packet data gateway PGW; According to described PDP Context update request or bearer update request, determine that PDP Context upgrades reason or bearer update reason;
It is former because when a plurality of that the CTF module is upgraded reason or bearer update at the PDP Context of determining, according to the precedence information of predefined PDP Context renewal reason or bearer update reason, from a plurality of PDP Contexts renewal reasons or bearer update reason, choose a PDP Context and upgrade reason or bearer update reason;
The CTF module generates carries the charging request message that the PDP Context of choosing upgrades reason or bearer update reason, and this charging request message is sent to charging data function CDF module.
A kind of charging send-request unit, this device comprises:
Charging triggering function CTF module is used for receiving block data agreement PDP Context update request or bearer update request; According to described PDP Context update request or bearer update request, determine that PDP Context upgrades reason or bearer update reason; It is former because when a plurality of to upgrade reason or bearer update at the PDP Context of determining, according to the precedence information of predefined PDP Context renewal reason or bearer update reason, from a plurality of PDP Contexts renewal reasons or bearer update reason, choose a PDP Context and upgrade reason or bearer update reason; The charging request message that the PDP Context of choosing upgrades reason or bearer update reason is carried in generation, and this charging request message is sent to charging data function CDF module;
The CDF module is used to receive described charging request message.
A kind of packet data gateway PGW, this PGW comprise described charging send-request unit.
In this programme, after the CTF module of PGW receives PDP Context update request or bearer update request, according to PDP Context update request or bearer update request, determine that PDP Context upgrades reason or bearer update reason, it is former because when a plurality of to upgrade reason or bearer update at the PDP Context of determining, upgrade the precedence information of reason or bearer update reason according to predefined PDP Context, from a plurality of PDP Contexts renewal reasons or bearer update reason, choose a PDP Context and upgrade reason or bearer update reason, and after generation is carried the PDP Context chosen and upgraded the charging request message of reason or bearer update reason, this charging request message is sent to the CDF module.As seen, this programme has solved that to upgrade reason or bearer update at PDP Context former because when a plurality of, and how the CTF module of PGW sends the problem of charging request message to the CDF module.
Description of drawings
Fig. 1 is the attaching process schematic diagram under the EUTRAN of the prior art;
Fig. 2 is that E-UTRAN of the prior art switches execution preparatory stage schematic diagram to the GERAN system;
Fig. 3 is that E-UTRAN of the prior art is to GERAN system handover execution stage schematic diagram;
The method flow schematic diagram that Fig. 4 provides for the embodiment of the invention;
The apparatus structure schematic diagram that Fig. 5 provides for the embodiment of the invention.
Embodiment
To upgrade reason or bearer update at PDP Context former because when a plurality of in order to solve, how the CTF module of PGW sends the problem of charging request message to the CDF module, the embodiment of the invention provides a kind of charging request sending method, in this method, it is former because when a plurality of that the CTF module of PGW is upgraded reason or bearer update at PDP Context, upgrade the precedence information of reason or bearer update reason according to predefined PDP Context, from a plurality of PDP Contexts renewal reasons or bearer update reason, choose a PDP Context and upgrade reason or bearer update reason, generate then and carry the PDP Context of choosing and upgrade the charging request message of the charging request message of reason or bearer update reason, and send to the CDF module.
Referring to Fig. 4, the charging request sending method that the embodiment of the invention provides may further comprise the steps:
The CTF module of step 40:PGW receives PDP Context update request or bearer update request; According to described PDP Context update request or bearer update request, determine that PDP Context upgrades reason or bearer update reason;
Here, the CTF module determines that the specific implementation method of PDP Context renewal reason or bearer update reason is: the CTF module is compared the parameter of carrying in PDP Context update request or the bearer update request with the local relevant parameter of preserving, if the parameter of carrying in PDP Context update request or the bearer update request is different with the local relevant parameter of preserving, then determine the reason that is changed to PDP Context reason for renewing or bearer update of this parameter.Such as, user location parameter in the PDP Context update request and local user location parameter of preserving are compared, if the user location parameter of carrying in the PDP Context update request is different with local user location parameter of preserving, that then determines customer location is changed to the PDP Context reason for renewing.
It is former because when a plurality of that step 41:CTF module is upgraded reason or bearer update at the PDP Context of determining, according to the precedence information of predefined PDP Context renewal reason or bearer update reason, from a plurality of PDP Contexts renewal reasons or bearer update reason, choose a PDP Context and upgrade reason or bearer update reason;
Step 42:CTF module generates carries the charging request message that the PDP Context of choosing upgrades reason or bearer update reason, and this charging request message is sent to the CDF module.
In the step 40, the PDP Context update request that the CTF module receives is from SGSN; The bearer update request that receives is from SGW.
In the step 41, when the CTF module is chosen PDP Context renewal reason or bearer update reason from a plurality of PDP Contexts renewal reasons or bearer update reason, can upgrade from a plurality of PDP Contexts and choose the PDP Context that priority is a highest renewal reason or bearer update reason reasons or the bearer update reason.
Certainly, the mode of choosing is not limited to the above-mentioned mode that lists, other are any chooses PDP Context according to priority and upgrades the mode of reason or bearer update reason all in protection scope of the present invention, for example, from a plurality of PDP Contexts renewal reasons or bearer update reason, choose a minimum PDP Context of priority and upgrade reason or bearer update reason; Or from a plurality of PDP Contexts renewal reasons or bearer update reason, choose a priority time low PDP Context and upgrade reason or bearer update reason; Or from a plurality of PDP Contexts renewal reasons or bearer update reason, choose a priority time high PDP Context and upgrade reason or bearer update reason.
In the step 41, a plurality of PDP Contexts renewal reasons or bearer update reason can include but not limited at least two kinds in following three kinds of reasons:
Customer location changes (User Location Change);
Insert area type and change (RAT Change);
The user time zone changes (UE TimeZone Change).
Certainly, PDP Context upgrades reason or the bearer update reason is not limited to above-mentioned three kinds, can also be reason that list in the table 1 or redetermination.
More excellent, the priority of RAT Change can be higher than the priority of User Location Change, and the priority of UE TimeZone Change is higher than the priority of RAT Change.
In the step 42, the PDP Context chosen upgrades reason or bearer update reason can be carried at that name is called in the information unit (IE) of Change-Condition in the charging request message.
Further, after the CTF module sends to the CDF module with this charging request message, the CDF module PDP Context that carries in the described charging request message can be upgraded reason or the bearer update reason is closed reason as ticket, fills in the opened charging data record CDR ticket; Close opened CDR ticket then, and open new CDR ticket.
Further, after the CDF module was closed opened CDR ticket, the CDF module can send to charging gateway CG with the CDR ticket of closing; CG closes reason according to the ticket in each the CDR ticket that receives, and the CDR ticket that receives is carried out ticket merge.
The present invention will be described below in conjunction with specific embodiment:
The present invention proposes: PDP Context renewal reason or bearer update reason are sorted according to priority, and when existing a plurality of PDP Contexts to upgrade reasons or bearer update reason, the accurate description ticket is closed reason to the full extent.Describe according to agreement TS32.251, User Location Change causes that PGW-CDR appends charge information, and RAT Change and UE TimeZone Change triggering PGW-CDR ticket are closed, therefore when User Location Change and other two kinds of PDP Contexts renewal reasons or bearer update reason occurred simultaneously, RAT Change or UE TimeZone Change priority were greater than User Location Change.If RAT Change or UE TimeZone Change occur simultaneously, then according to the frequent degree and the actual operating position of PDP Context renewal or bearer update, UE TimeZone Change priority is greater than RAT Change.Therefore the prioritization of these several renewal reasons is: UE TimeZone Change＞RAT Change＞User Location Change, priority successively from high to low.That is to say, if in the above-mentioned flow process, RAT changes, and User Location Information also changes simultaneously, then to fill out be 8 to Change-Condition, corresponding implication is: RAT Change, and if in the above-mentioned flow process, RAT changes, UE TimeZone Change and User Location Information also change simultaneously, then according to the prioritization of this explanation, it is 9 that Change-Condition fills out, and corresponding implication is: UE TimeZone Change.
Embodiment one:
The CTF module of step 1:PGW receives the PDP Context update request that SGSN sends; According to the PDP Context update request, determine that PDP Context upgrades reason or bearer update reason;
Step 2:CTF module is upgraded former because when a plurality of at the PDP Context of determining, upgrades the precedence information of reason according to predefined PDP Context, upgrades from a plurality of PDP Contexts and chooses a PDP Context the reasons and upgrade reason;
Step 3:CTF module generates carries the charging request message that the PDP Context of choosing upgrades reason, and this charging request message is sent to the CDF module; The PDP Context chosen upgrades reason can be carried at that name is called among the IE of Change-Condition in the charging request message.
After the step 3, the CDF module can be upgraded the PDP Context that carries in the described charging request message reason and close reason as ticket, fills in the opened CDR ticket; Close opened CDR ticket then, and open new CDR ticket;
After the CDF module was closed opened CDR ticket, the CDF module can also send to charging gateway CG with the CDR ticket of closing; CG closes reason according to the ticket in each the CDR ticket that receives, and the CDR ticket that receives is carried out ticket merge.
Embodiment two:
The CTF module of step 1:PGW receives the bearer update request that SGW sends; According to the bearer update request, determine the bearer update reason;
Step 2:CTF module is former because when a plurality of at the bearer update of determining, according to the precedence information of predefined bearer update reason, chooses a bearer update reason from a plurality of bearer update reasons;
Step 3:CTF module generates the charging request message of carrying the bearer update reason of choosing, and this charging request message is sent to the CDF module; The bearer update reason of choosing can be carried in the charging request message name and be called among the IE of Change-Condition.
After the step 3, the CDF module can be closed reason as ticket with the bearer update reason of carrying in the described charging request message, fills in the opened CDR ticket; Close opened CDR ticket then, and open new CDR ticket;
After the CDF module was closed opened CDR ticket, the CDF module can also send to charging gateway CG with the CDR ticket of closing; CG closes reason according to the ticket in each the CDR ticket that receives, and the CDR ticket that receives is carried out ticket merge.
Participate in Fig. 5, the embodiment of the invention provides a kind of charging send-request unit, and this device comprises:
Described CDF module 51 also is used for:
The PDP Context renewal reason or the bearer update reason of carrying in the described charging request message are closed reason as ticket, fill in the opened charging data record CDR ticket;
Close opened CDR ticket, and open new CDR ticket.
Described CDF module 51 also is used for:
The CDR ticket of closing is sent to charging gateway CG,, the CDR ticket that receives is carried out ticket merge so that CG closes reason according to the ticket in each the CDR ticket that receives.
Described CTF module 50 is used for:
From a plurality of PDP Contexts renewal reasons or bearer update reason, choose a PDP Context that priority is the highest and upgrade reason or bearer update reason.
The PDP Context update request that described CTF module 50 receives is from Serving GPRS Support Node SGSN; The bearer update request that receives is from gateway SGW.
A plurality of PDP Contexts renewal reasons or bearer update reason comprise at least two kinds in following three kinds of reasons:
Customer location changes User Location Change;
Insert area type and change RAT Change;
The user time zone changes UE TimeZone Change.
Preferable, the priority of RAT Change is higher than the priority of User Location Change, and the priority of UE TimeZone Change is higher than the priority of RAT Change.
The embodiment of the invention provides a kind of PGW, and this PGW comprises described charging send-request unit.
To sum up, beneficial effect of the present invention comprises:
In the scheme that the embodiment of the invention provides, after the CTF module of PGW receives PDP Context update request or bearer update request, according to PDP Context update request or bearer update request, determine that PDP Context upgrades reason or bearer update reason, it is former because when a plurality of to upgrade reason or bearer update at the PDP Context of determining, upgrade the precedence information of reason or bearer update reason according to predefined PDP Context, from a plurality of PDP Contexts renewal reasons or bearer update reason, choose a PDP Context and upgrade reason or bearer update reason, and after generation is carried the PDP Context chosen and upgraded the charging request message of reason or bearer update reason, this charging request message is sent to the CDF module.As seen, this programme has solved that to upgrade reason or bearer update at PDP Context former because when a plurality of, and how the CTF module of PGW sends the problem of charging request message to the CDF module.
The present invention is at new bearer more or upgrade in the PDP Context process, is satisfying on the basis of agreement, and the priority of PDP Context being upgraded reason or bearer update reason sorts.
According to protocol description, standard is closed filling in of reason owing to the ticket that carries or the PDP Context renewal causes, provides foundation for follow-up ticket merges to handle.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of carrying out on computer or other programmable devices is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (15)
1. sending method is asked in a charging, it is characterized in that this method comprises:
Charging triggering function CTF module receiving block data agreement PDP Context update request or the bearer update request of packet data gateway PGW; According to described PDP Context update request or bearer update request, determine that PDP Context upgrades reason or bearer update reason;
It is former because when a plurality of that the CTF module is upgraded reason or bearer update at the PDP Context of determining, according to the precedence information of predefined PDP Context renewal reason or bearer update reason, from a plurality of PDP Contexts renewal reasons or bearer update reason, choose a PDP Context and upgrade reason or bearer update reason;
The CTF module generates carries the charging request message that the PDP Context of choosing upgrades reason or bearer update reason, and this charging request message is sent to charging data function CDF module.
2. the method for claim 1 is characterized in that, after the CTF module sends to the CDF module with this charging request message, further comprises:
The PDP Context that carries in the described charging request message is upgraded reason to the CDF module or the bearer update reason is closed reason as ticket, fills in the opened charging data record CDR ticket;
The CDF module is closed opened CDR ticket, and opens new CDR ticket.
3. method as claimed in claim 2 is characterized in that, after the CDF module is closed opened CDR ticket, further comprises:
The CDF module sends to charging gateway CG with the CDR ticket of closing;
CG closes reason according to the ticket in each the CDR ticket that receives, and the CDR ticket that receives is carried out ticket merge.
4. the method for claim 1 is characterized in that, the described renewal from a plurality of PDP Contexts chooses reasons or the bearer update reason that a PDP Context upgrades reason or the bearer update reason comprises:
From a plurality of PDP Contexts renewal reasons or bearer update reason, choose a PDP Context that priority is the highest and upgrade reason or bearer update reason.
5. the method for claim 1 is characterized in that, the PDP Context update request that the CTF module receives is from Serving GPRS Support Node SGSN; The bearer update request that receives is from gateway SGW.
6. as arbitrary described method among the claim 1-5, it is characterized in that a plurality of PDP Contexts renewal reasons or bearer update reason comprise at least two kinds in following three kinds of reasons:
Customer location changes User Location Change;
Insert area type and change RAT Change;
The user time zone changes UE TimeZone Change.
7. method as claimed in claim 6 is characterized in that the priority of RAT Change is higher than the priority of User Location Change, and the priority of UE TimeZone Change is higher than the priority of RAT Change.
8. a charging send-request unit is characterized in that, this device comprises:
Charging triggering function CTF module is used for receiving block data agreement PDP Context update request or bearer update request; According to described PDP Context update request or bearer update request, determine that PDP Context upgrades reason or bearer update reason; It is former because when a plurality of to upgrade reason or bearer update at the PDP Context of determining, according to the precedence information of predefined PDP Context renewal reason or bearer update reason, from a plurality of PDP Contexts renewal reasons or bearer update reason, choose a PDP Context and upgrade reason or bearer update reason; The charging request message that the PDP Context of choosing upgrades reason or bearer update reason is carried in generation, and this charging request message is sent to charging data function CDF module;
The CDF module is used to receive described charging request message.
9. device as claimed in claim 8 is characterized in that, described CDF module also is used for:
The PDP Context renewal reason or the bearer update reason of carrying in the described charging request message are closed reason as ticket, fill in the opened charging data record CDR ticket;
Close opened CDR ticket, and open new CDR ticket.
10. device as claimed in claim 9 is characterized in that, described CDF module also is used for:
The CDR ticket of closing is sent to charging gateway CG,, the CDR ticket that receives is carried out ticket merge so that CG closes reason according to the ticket in each the CDR ticket that receives.
11. device as claimed in claim 8 is characterized in that, described CTF module is used for:
From a plurality of PDP Contexts renewal reasons or bearer update reason, choose a PDP Context that priority is the highest and upgrade reason or bearer update reason.
12. device as claimed in claim 8 is characterized in that, the PDP Context update request that described CTF module receives is from Serving GPRS Support Node SGSN; The bearer update request that receives is from gateway SGW.
13., it is characterized in that a plurality of PDP Contexts renewal reasons or bearer update reason comprise at least two kinds in following three kinds of reasons as the arbitrary described device of claim 8-12:
Customer location changes User Location Change;
Insert area type and change RAT Change;
The user time zone changes UE TimeZone Change.
14. device as claimed in claim 13 is characterized in that, the priority of RAT Change is higher than the priority of User Location Change, and the priority of UE TimeZone Change is higher than the priority of RAT Change.
15. a packet data gateway PGW is characterized in that, this PGW comprises as arbitrary described device among the claim 8-14.
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| CN103458387A (en) * | 2012-05-29 | 2013-12-18 | 中国移动通信集团公司 | Method, equipment and system for updating tickets in grouped field |
| CN106332033A (en) * | 2015-06-17 | 2017-01-11 | 中兴通讯股份有限公司 | Method and device for generating telephone bill and packet data network gateway |
| CN109155737A (en) * | 2016-05-19 | 2019-01-04 | 诺基亚美国公司 | Destination for off-line accounting system selects to avoid reverse |
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Application publication date: 20111228 |