CN103686837A - Selected ip traffic offload method and system as well as policy and charging rule function equipment - Google Patents
Selected ip traffic offload method and system as well as policy and charging rule function equipment Download PDFInfo
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Abstract
The invention discloses a selected ip traffic offload (SIPTO) method and system as well as policy and charging rule function (PCRF) equipment, and relates to the field of communications. The method comprises the following steps: receiving service information of data reported by TDF (Traffic Detect Function) equipment and sent by a terminal by the PCRF equipment; deciding whether the data sent by the terminal is subjected to SIPTO according to SIPTO subscription information of the terminal obtained from an HSS (Home Subscriber Server) and the service information of the data sent by the terminal; after deciding that the data sent by the terminal is subjected to the SIPTO, sending an SIPTO starting prompt to the terminal through ANDSF (Access Network Discovery and Selection Function) equipment, and after the terminal receives the SIPTO starting prompt, building a connection between the terminal and a PDN (Packet Data Network) of an L-PGW (Local-Packet Data Network Gateway) to achieve offloading of data sent to the terminal by the L-PGW. Through the technical scheme, on one hand, the data traffic flowing through a core network is remarkably reduced and the processing load of the core network is reduced, and on the other hand, the offloading is performed according to the actual data transmission situation of the terminal and the intelligent dynamic traffic offloading is achieved.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of flow discharging method, system and strategy and charging rule functions equipment.
Background technology
Day by day abundant mobile Internet business has brought the growth of mobile packet data flow explosion type, has brought new challenge also to mobile network's transmittability and disposal ability simultaneously.
P2P(Peer-to-Peer, reciprocity or point-to-point) application is a kind of in current common network application, by any computer on network, serves as the client of the service of acceptance simultaneously and the dual role of the server end of service is provided.High speed unloading software based on P2P adopts location, the shared mechanism of distributed objects, makes to realize between the network user direct resource-sharing.Therefore, it is shared and provides unprecedented free and convenient for user resources.
Yet high speed unloading software has also brought negative impact, main manifestations is that network bandwidth resources is seriously taken, and has affected normal network service.The investigation data demonstration of survey institute, in current the Internet, the total flow of 50%-90% is all from P2P business.
In the face of the demand and challenge, industry has proposed a kind of SIPTO(Selected IP Traffic Offload, the unloading of selectivity IP flow) technology.In this technology, MME(Mobile Management Entity, mobile management entity) access request of receiving terminal, if the APN(Access Point Name carrying in access request, when APN) sign is the APN of a local IP access, MME can forward the data of this terminal transmission to local packet data network gateway and shunts.As can be seen here, prior art can only be carried out static splitting based on APN, for the shunting of data, processes underaction, can not dynamically according to the data traffic of user's actual transmissions, shunt, and cannot meet consumers' demand.
Summary of the invention
An embodiment of the present invention technical problem to be solved is: provide a kind of flow discharging method, system and strategy and charging rule functions equipment, to solve shunting processing underaction that in prior art, static splitting was brought, cannot the problem such as shunt according to data actual conditions.
According to the embodiment of the present invention aspect, a kind of flow discharging method providing, comprising:
The business information of the data that the terminal that reception flow detection function equipment reports sends; The business information of the data that send according to flow unloading CAMEL-Subscription-Information and the terminal of the terminal of obtaining from home subscriber server, whether the data that terminal is sent are carried out flow unloading and are carried out decision-making; In decision-making, carry out after flow unloading, by access network discovery and selection function equipment, to terminal, send and start flow unloading indication, terminal is after receiving that starting flow unloading indicates, set up terminal and be connected with the Packet Data Network of local packet data network gateway, to realize the unloading of local packet data network gateway to the data of terminal transmission.
According to another aspect of the embodiment of the present invention, a kind of strategy providing and charging rule functions equipment, comprising: business information receiving element, for receiving the business information of the data that terminal that flow detection function equipment reports sends; Whether flow unloading decision package, for according to the business information of the data of the flow unloading CAMEL-Subscription-Information of the terminal of obtaining from home subscriber server and terminal transmission, carry out flow unloading to the data of terminal transmission and carry out decision-making; And flow unloading indicating member, for carrying out after flow unloading in decision-making, by access network discovery and selection function equipment, to terminal, send and start flow unloading indication, terminal is after receiving that starting flow unloading indicates, set up terminal and be connected with the Packet Data Network of local packet data network gateway, to realize the unloading of local packet data network gateway to the data of terminal transmission.
According to another aspect of the embodiment of the present invention, a kind of flow uninstalling system providing, comprise: local packet data network gateway and strategy and charging rule functions equipment, wherein, strategy and charging rule functions equipment, for receiving the business information of the data that terminal that flow detection function equipment reports sends; The business information of the data that send according to flow unloading CAMEL-Subscription-Information and the terminal of the terminal of obtaining from home subscriber server, whether the data that terminal is sent are carried out flow unloading and are carried out decision-making; In decision-making, carry out after flow unloading, by access network discovery and selection function equipment, to terminal, send and start flow unloading indication; Terminal, for after receiving that starting flow unloading indicates, sets up terminal and is connected with the Packet Data Network of local packet data network gateway; Local packet data network gateway, is connected for setting up Packet Data Network with terminal, to realize the unloading of the data that terminal is sent.
Alternatively, flow unloading decision strategy can be, if terminal unit contractual flow unloading, and the data that terminal sends are service traffics of setting, the data that terminal is sent are carried out flow unloading.Or, if terminal unit contractual flow unloading, and the data that terminal sends are service traffics of setting, and the load of core net reaches preset value, the data that terminal is sent are carried out flow unloading.
Flow discharging method provided by the invention, system and strategy and charging rule functions equipment, the business information of the data that sent according to flow unloading CAMEL-Subscription-Information and the terminal of terminal by PCRF, whether the data of coming decision-making to send terminal carry out flow unloading, the service traffics that guiding is set are on the one hand shunted in Access Network side, significantly reduced the core net of flowing through data traffic, reduced the processing load of core net, according to the actual conditions of terminal transmission data, shunt on the other hand, realized the Intelligent Dynamic unloading of flow.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is operation principle schematic diagram of the present invention.
Fig. 2 is the schematic flow sheet of an embodiment of flow discharging method of the present invention.
Fig. 3 is the schematic flow sheet of another embodiment of flow discharging method of the present invention.
Fig. 4 is the schematic flow sheet of another embodiment of flow discharging method of the present invention.
Fig. 5 is the structural representation of an embodiment of strategy of the present invention and charging rule functions equipment.
Fig. 6 is the structural representation of an embodiment of flow uninstalling system of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.To the description only actually of at least one exemplary embodiment, be illustrative below, never as any restriction to the present invention and application or use.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Unless illustrate in addition, otherwise the parts of setting forth in these embodiments and positioned opposite, numeral expression formula and the numerical value of step not limited the scope of the invention.
, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not to draw according to actual proportionate relationship meanwhile.
For the known technology of person of ordinary skill in the relevant, method and apparatus, may not discuss in detail, but in suitable situation, described technology, method and apparatus should be regarded as authorizing a part for specification.
In all examples with discussing shown here, it is exemplary that any occurrence should be construed as merely, rather than as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: in similar label and letter accompanying drawing below, represent similar terms, therefore, once be defined in an a certain Xiang Yi accompanying drawing, in accompanying drawing subsequently, do not need it to be further discussed.
Fig. 1 is operation principle schematic diagram of the present invention.
As shown in Figure 1, evolution base station 102(evolved Node B, eNodeB) be responsible for Access Network part, also claim evolved universal mobile communication system land radio access web (Evolved UMTS Terrestrial Radio Access Network, E-UTRAN); Mobile management entity 104(Mobility Management Entity, MME) packet-based core networks (Evolved Packet Core, the EPC) signaling of being responsible for evolution processes; Gateway 106(Serving Gateway, SGW) be a gateway that ends at E-UTRAN interface; Packet data network gateway 108(Packet Data Network Gateway, PGW) be towards Packet Data Network (Packet Data Network, PDN), to end in the gateway of security gateway interface (Security Gateway Interface, SGI); Subscriber equipment 110(User Equipment, UE) refer to be applicable to the terminal equipment of Long Term Evolution (LTE, Long Term Evolution)/EPC network, also can be called terminal; Local packet data network gateway 112(Local PGW, L-PGW) be generally deployed in Access Network or near the position of Access Network; Data Detection function device 114(Traffic Detect Function, TDF) possess deep-packet detection (Deep Packet Inspection, DPI) function; Home subscriber server 116(Home Subscriber Server, HSS) for storing the network element of user data; Access network discovery and selection function equipment 118(Access Network Discovery and Selection Function, ANDSF) comprised Network finding and selected relevant data management and control function, ANDSF is as the new functional entity in EPC network, it is that UE issues mobility strategy, routing policy and access network discovery information from network side, auxiliary UE network selection and the auxiliary many PDN Business Stream control under being connected under multi-access network environment, in the embodiment of the present invention, strengthened the function of ANDSF, made it forward and to start flow unloading indication to UE; Strategy and charging rule functions equipment 120(Policy and Charging Rules Function, PCRF) increased the decision-making of flow unloading, and increased the interface of PCRF and ANDSF, PCRF can send to ANDSF by starting flow unloading indication by this interface, and is transmitted to UE by ANDSF.PGW shown in Fig. 1 and TDF can close and establish or set up separately, are also that TDF can be used as an equipment that is independent of PGW, also can be integrated in the upper functional module as PGW of PGW.Dashed double is depicted as signaling and the partial data flow of the core net of flowing through, and solid line double-head arrow is depicted as SIPTO flow, and the service traffics of the setting that can unload are directly dredged internet (Internet) by L-PGW.
Fig. 2 is the schematic flow sheet of an embodiment of flow discharging method of the present invention.
As shown in Figure 2, this embodiment can comprise the following steps:
S202, the business information of the data that the terminal that PCRF reception TDF reports sends;
S204, the business information of the data that PCRF sends according to flow unloading CAMEL-Subscription-Information and the terminal of the terminal of obtaining from HSS, whether the data that terminal is sent are carried out flow unloading and are carried out decision-making;
S206, carries out after flow unloading in decision-making, and PCRF sends startup flow by ANDSF to terminal and unloads indication, and terminal, after receiving that starting flow unloading indicates, is set up terminal and is connected with the PDN of L-PGW, to realize the unloading of L-PGW to the data of terminal transmission.
Above-described embodiment, the business information of the data that sent according to flow unloading CAMEL-Subscription-Information and the terminal of terminal by PCRF, whether the data of coming decision-making to send terminal carry out flow unloading, the service traffics that guiding is set are on the one hand shunted in Access Network side, significantly reduced the core net of flowing through data traffic, reduced the processing load of core net, according to the actual conditions of terminal transmission data, shunt on the other hand, realized the Intelligent Dynamic unloading of flow.
Further, PCRF can adopt following methods to carry out decision-making to whether carrying out flow unloading:
Method one, mainly considers signing situation and the flow type of service of terminal, particularly, if terminal unit contractual flow unloading, and the data that terminal sends are service traffics of setting, the data that terminal is sent are carried out flow unloading.Wherein, the service traffics of setting are the business that can carry out flow unloading, the service traffics that normally data volume is large, income is little, and such as P2P flow, video flow etc., the present invention does not limit this.
Method two, consider signing situation, flow type of service and the network load situation of terminal, particularly, if terminal unit contractual flow unloading, and the data that terminal sends are service traffics of setting, and the load of core net reaches preset value, and the data that terminal is sent are carried out flow unloading, if the load of core net does not reach preset value, the data that also can not send terminal are carried out flow unloading.
Further, the business information of the data that the terminal that TDF reports sends can comprise tagged word, and tagged word is that TDF utilizes deep packet inspection technical that the data of terminal transmission are detected and obtained.Particularly, because different application depends on different agreements conventionally, and different agreements may its special fingerprint, and these fingerprints may be specific port, specific character string or specific Bit sequence.Recognition technology based on " tagged word " determines by the detection of " fingerprint " information in specific data message in Business Stream the application that Business Stream carries.According to the difference of concrete detection mode, the recognition technology based on " tagged word " can be divided into again tagged word coupling and three kinds of technology of status flag word coupling of fixed position tagged word coupling, changing position.By the upgrading to " fingerprint " information, the recognition technology based on tagged word can be carried out Function Extension easily to realize the detection to New Deal.For example, the identification of Bittorrent agreement, analyzes its peer protocol by reverse engineering, and so-called peer protocol refers to the agreement of exchange message between peer and peer.Peer protocol is by the beginning of shaking hands, after be circulation message flow, before each message, there is a numeral to represent the length of message, in its handshake procedure, first being first to send 19, is and then character string " BitTorrent protocol ", and " 19BitTorrent Protocol " is exactly " tagged word " of Bittorrent so.
Fig. 3 is the schematic flow sheet of another embodiment of flow discharging method of the present invention.
As shown in Figure 3, wherein S302～S332 is the schematic flow sheet that terminal is adhered to EPC network, in terminal, adheres in EPC flow through a network, and HSS is synchronized to PCRF(by the flow unloading CAMEL-Subscription-Information of terminal and sees step S310); This embodiment can comprise the following steps:
S302, UE sends and adheres to request (Attach Request) message to eNodeB;
S304, eNodeB forwards Attach Request message to MME;
S306, MME sends authentication information request (Authentication Information Request) message to HSS;
S308, HSS XiangMME return authentication information response (Authentication Information Response) message;
S310, HSS is synchronized to PCRF by the flow unloading CAMEL-Subscription-Information of terminal, and wherein, flow unloading CAMEL-Subscription-Information comprises and is now not limited to SIPTO CAMEL-Subscription-Information;
S312, MME sends and creates default bearing request (Create Default Bearer Request) message to SGW;
S314, SGW forwards Create Default Bearer Request message to PGW;
S316, PGW and PCRF set up IP connected reference BlueDrama (IP Connectivity Access Network);
S318, PGW sends and creates default bearing response (Create Default Bearer Response) message to SGW;
S320, SGW forwards Create Default Bearer Response message to MME;
S322, MME sends initial context foundation to eNodeB and asks/adhere to accept (Initial Context Setup Request/Attach Accept) message;
S324, eNodeB sends wireless resource control connection reconfiguration (RRC Connection Reconfiguration) message to UE;
S326, UE sends wireless resource control connection reconfiguration to eNodeB and completes (RRC Connection Reconfiguration Complete) message;
S328, eNodeB sends initial context to MME and sets up response (Initial Context Setup Response) message;
S330, UE sends and directly transmits (Direct Transfer) message to eNodeB;
S332, eNodeB sends and has adhered to (Attach Complete) message to MME.
Next, with P2P, be applied as example and describe, but the application traffic that can unload is not limited to P2P flow, can also comprise the flow of the other types application such as video flow, page browsing flow.
Terminal, after completing attachment flow, is initiated a series of flow processs such as P2P application connection.As shown in Figure 3:
S334, the data that TDF sends terminal are carried out business detection, and the business information detecting is reported to PCRF, and PCRF can determine according to the business information reporting whether the data that terminal sends are the service traffics that need to carry out the setting of flow unloading; It should be noted that, TDF can utilize deep packet inspection technical to obtain the tagged word that can identify P2P type of service in packet; TDF can be a functional module of PGW, can be also an equipment that is independent of PGW;
S336, PCRF is in conjunction with the business information of the flow unloading CAMEL-Subscription-Information of terminal and the data of terminal transmission, whether the data that terminal is sent are carried out flow unloading and are carried out decision-making, in decision-making, carry out after flow unloading, send and start flow unloading indication to ANDSF, when flow unloading is not carried out in decision-making, can carry out speed limit, obstruction or not process according to strategy;
S338, ANDSF forwards and starts flow unloading indication to UE;
UE receives and starts after flow unloading indication, carry out SIPTO attachment flow (S340～S366), SIPTO attachment flow and step S302～S332 are similar, main difference be positional information that MME can be by terminal (for example, tracing area sign), for user selects local packet data network gateway L-PGW, to set up SIPTO PDN, connect; Follow-up, from the P2P flow of UE, through SGW, be discharged into L-PGW.
S340, UE sends Attach Request message to eNodeB;
S342, eNodeB forwards Attach Request message to MME;
S344, MME sends Authentication Information Request message to HSS;
S346, HSS returns to Authentication Information Response message to MME;
S348, MME is that UE selects L-PGW, MME sends Create Default Bearer Request message to SGW;
S350, SGW forwards Create Default Bearer Request message to L-PGW;
S352, L-PGW sends Create Default Bearer Response message to SGW;
S354, SGW forwards Create Default Bearer Response message to MME;
S356, MME sends Initial Context Setup Request/Attach Accept message to eNodeB;
S358, eNodeB sends RRC Connection Reconfiguration message to UE;
S360, UE sends RRC Connection Reconfiguration Complete message to eNodeB;
S362, eNodeB sends Initial Context Setup Response message to MME;
S364, UE sends Direct Transfer message to eNodeB;
S366, eNodeB sends Attach Complete message to MME; Follow-up, from the P2P flow of UE, through SGW, be discharged into L-PGW.
Above-described embodiment, the business information of the data that sent according to flow unloading CAMEL-Subscription-Information and the terminal of terminal by PCRF, whether the data of coming decision-making to send terminal carry out flow unloading, the service traffics that guiding is set are on the one hand shunted in Access Network side, significantly reduced the core net of flowing through data traffic, reduced the processing load of core net, according to the actual conditions of terminal transmission data, shunt on the other hand, realized the Intelligent Dynamic unloading of flow.
Fig. 4 is the schematic flow sheet of another embodiment of flow discharging method of the present invention.
As shown in Figure 4, this embodiment comprises the following steps:
S402, UE adheres to EPC network, and idiographic flow can be referring to the S302～S332 in Fig. 3;
S404, the whether signing SIPTO attribute of HSS judgement UE;
S406, if the signing SIPTO attribute of UE, HSS is synchronized to PCRF by SIPTO CAMEL-Subscription-Information, then carries out step S408; If the not signing SIPTO attribute of UE, directly carries out step S408;
S408, UE starts to send data;
S410, the data that TDF sends terminal are carried out business detection, to identify the service traffics of setting;
S412, TDF reports PCRF by the business information detecting;
S414, whether PCRF decision-making carries out flow unloading, if unloaded, performs step 208 and carries out further decision-making; If do not unloaded, perform step S424, according to strategy, carry out speed limit, obstruction or do not process;
Wherein, PCRF can carry out decision-making according to situations such as flow type of service and core net loads, and for example, if the service traffics of setting, decision-making unloads, otherwise flow unloading is not carried out in decision-making; And for example, if the service traffics of setting, and core net load reached preset value, can decision-making unload; If the service traffics of setting, and core net load does not reach preset value, can decision-making not carry out flow unloading; If not the service traffics of setting can decision-making not carried out flow unloading.The present invention does not limit concrete decision strategy.
S416, PCRF judges the attribute that the whether signing SIPTO of user allows.If allow, perform step S418; If do not allowed, perform step S424;
S418, PCRF completes after decision-making, sends and starts flow unloading indication to ANDSF;
S420, ANDSF forwards and starts flow unloading indication to UE, specifically can in sending to the signaling of UE, increase startup flow unloading sign and trigger the local unloading of flow flow process;
S422, UE carries out SIPTO and adheres to process (referring to step S340～S366), and UE sets up PDN with L-PGW and is connected, and UE is by L-PGW access the Internet, to realize the local unloading of P2P flow.
Above-described embodiment, the business information of the data that sent according to flow unloading CAMEL-Subscription-Information and the terminal of terminal by PCRF, whether the data of coming decision-making to send terminal carry out flow unloading, the service traffics that guiding is set are on the one hand shunted in Access Network side, significantly reduced the core net of flowing through data traffic, reduced the processing load of core net, according to the actual conditions of terminal transmission data, shunt on the other hand, realized the Intelligent Dynamic unloading of flow.
Fig. 5 is the structural representation of an embodiment of strategy of the present invention and charging rule functions equipment.
As shown in Figure 5, this equipment comprises: business information receiving element 502, for receiving the business information of the data that terminal that flow detection function equipment reports sends; Whether flow unloading decision package 504, for according to the business information of the data of the flow unloading CAMEL-Subscription-Information of the terminal of obtaining from home subscriber server and terminal transmission, carry out flow unloading to the data of terminal transmission and carry out decision-making; Flow unloading indicating member 506, for carrying out after flow unloading in decision-making, by access network discovery and selection function equipment, to terminal, send and start flow unloading indication, terminal is after receiving that starting flow unloading indicates, set up terminal and be connected with the Packet Data Network of local packet data network gateway, to realize the unloading of local packet data network gateway to the data of terminal transmission.
Further, flow unloading decision package 504, if for terminal unit contractual flow unloading, and the data that terminal sends are service traffics of setting, the data that terminal is sent are carried out flow unloading.
Further, flow unloading decision package 504, if for terminal unit contractual flow unloading, and the data that terminal sends are service traffics of setting, and the load of core net reaches preset value, the data that terminal is sent are carried out flow unloading.
Wherein, business information comprises the tagged word of the data that terminal sends.
Above-described embodiment, the business information of the data that PCRF sends according to flow unloading CAMEL-Subscription-Information and the terminal of terminal, whether the data of coming decision-making to send terminal carry out flow unloading, the service traffics that guiding is set are on the one hand shunted in Access Network side, significantly reduced the core net of flowing through data traffic, reduced the processing load of core net, according to the actual conditions of terminal transmission data, shunt on the other hand, realized the Intelligent Dynamic unloading of flow.
Fig. 6 is the structural representation of an embodiment of flow uninstalling system of the present invention.
As shown in Figure 6, the system of this embodiment comprises: local packet data network gateway 602 and strategy and charging rule functions equipment 604, wherein, strategy and charging rule functions equipment 604, for receiving the business information of the data that terminal that flow detection function equipment reports sends; The business information of the data that send according to flow unloading CAMEL-Subscription-Information and the terminal of the terminal of obtaining from home subscriber server, whether the data that terminal is sent are carried out flow unloading and are carried out decision-making; In decision-making, carry out after flow unloading, by access network discovery and selection function equipment, to terminal, send and start flow unloading indication, so that terminal is after receiving startup flow unloading indication, sets up terminal and be connected with the Packet Data Network of local packet data network gateway; Local packet data network gateway 602, is connected for setting up Packet Data Network with terminal, to realize the unloading of the data that terminal is sent.
Further, strategy and charging rule functions equipment 604, if for terminal unit contractual flow unloading, and the data that terminal sends are service traffics of setting, the data that terminal is sent are carried out flow unloading.
Further, strategy and charging rule functions equipment 604, if for terminal unit contractual flow unloading, and the data that terminal sends are service traffics of setting, and the load of core net reaches preset value, the data that terminal is sent are carried out flow unloading.
Wherein, business information comprises the tagged word of the data that terminal sends.
Further, this system also comprises: mobile management entity, for utilizing the positional information of terminal to report to select local packet data network gateway for terminal, is connected so that terminal is set up Packet Data Network with selected local packet data network gateway.
Above-described embodiment, the business information of the data that PCRF sends according to flow unloading CAMEL-Subscription-Information and the terminal of terminal, whether the data of coming decision-making to send terminal carry out flow unloading, the service traffics that guiding is set are on the one hand shunted in Access Network side, significantly reduced the core net of flowing through data traffic, reduced the processing load of core net, according to the actual conditions of terminal transmission data, shunt on the other hand, realized the Intelligent Dynamic unloading of flow.
One of ordinary skill in the art will appreciate that all or part of step that realizes above-described embodiment can complete by hardware, also can come the hardware that instruction is relevant to complete by program, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be read-only memory, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (14)
1. a flow discharging method, is characterized in that, comprising:
The business information of the data that the terminal that reception flow detection function equipment reports sends;
The business information of the data that send according to flow unloading CAMEL-Subscription-Information and the described terminal of the described terminal of obtaining from home subscriber server, whether the data that described terminal is sent are carried out flow unloading and are carried out decision-making;
In decision-making, carry out after flow unloading, by access network discovery and selection function equipment, to described terminal, send and start flow unloading indication, described terminal is after receiving described startup flow unloading indication, set up described terminal and be connected with the Packet Data Network of local packet data network gateway, to realize the unloading of described local packet data network gateway to the data of described terminal transmission.
2. method according to claim 1, is characterized in that, the business information of the data that the described flow according to described terminal unloading CAMEL-Subscription-Information and described terminal send, and whether the data that described terminal is sent carry out flow unloading is carried out decision-making and comprises:
If described terminal unit contractual flow unloading, and the data that described terminal sends are service traffics of setting, the data that described terminal is sent are carried out flow unloading.
3. method according to claim 1, is characterized in that, the business information of the data that the described flow according to described terminal unloading CAMEL-Subscription-Information and described terminal send, and whether the data that described terminal is sent carry out flow unloading is carried out decision-making and comprises:
If described terminal unit contractual flow unloading, and the data that described terminal sends are service traffics of setting, and the load of core net reaches preset value, the data that described terminal is sent are carried out flow unloading.
4. method according to claim 1, is characterized in that, described business information comprises the tagged word of the data that described terminal sends.
5. flow discharging method according to claim 1, is characterized in that, describedly sets up described terminal and is connected and comprises with the Packet Data Network of local packet data network gateway:
It is that described terminal is selected local packet data network gateway that mobile management entity utilizes the positional information of described terminal to report;
Setting up described terminal is connected with the Packet Data Network of selected local packet data network gateway.
6. strategy and a charging rule functions equipment, is characterized in that, comprising:
Business information receiving element, for receiving the business information of the data that terminal that flow detection function equipment reports sends;
Whether flow unloading decision package, for according to the business information of the data of the flow unloading CAMEL-Subscription-Information of the described terminal of obtaining from home subscriber server and the transmission of described terminal, carry out flow unloading to the data of described terminal transmission and carry out decision-making; And
Flow unloading indicating member, for carrying out after flow unloading in decision-making, by access network discovery and selection function equipment, to described terminal, send and start flow unloading indication, described terminal is after receiving described startup flow unloading indication, set up described terminal and be connected with the Packet Data Network of local packet data network gateway, to realize the unloading of described local packet data network gateway to the data of described terminal transmission.
7. equipment according to claim 6, it is characterized in that, described flow unloading decision package, if for described terminal unit contractual flow unloading, and the data that described terminal sends are service traffics of setting, and the data that described terminal is sent are carried out flow unloading.
8. equipment according to claim 6, it is characterized in that, described flow unloading decision package, if for described terminal unit contractual flow unloading, and the data that described terminal sends are service traffics of setting, and the load of core net reaches preset value, the data that described terminal is sent are carried out flow unloading.
9. equipment according to claim 6, is characterized in that, described business information comprises the tagged word of the data that described terminal sends.
10. a flow uninstalling system, is characterized in that, comprising: tactful and charging rule functions equipment described in any one in local packet data network gateway and claim 6-9, wherein,
Described strategy and charging rule functions equipment, for receiving the business information of the data that terminal that flow detection function equipment reports sends; The business information of the data that send according to flow unloading CAMEL-Subscription-Information and the described terminal of the described terminal of obtaining from home subscriber server, whether the data that described terminal is sent are carried out flow unloading and are carried out decision-making; In decision-making, carry out after flow unloading, by access network discovery and selection function equipment, to described terminal, send and start flow unloading indication, so that described terminal, after receiving described startup flow unloading indication, is set up described terminal and is connected with the Packet Data Network of described local packet data network gateway;
Described local packet data network gateway, is connected for setting up Packet Data Network with described terminal, to realize the unloading of the data that described terminal is sent.
11. systems according to claim 10, it is characterized in that, described strategy and charging rule functions equipment, if for described terminal unit contractual flow unloading, and the data that described terminal sends are service traffics of setting, and the data that described terminal is sent are carried out flow unloading.
12. systems according to claim 10, it is characterized in that, described strategy and charging rule functions equipment, if for described terminal unit contractual flow unloading, and the data that described terminal sends are service traffics of setting, and the load of core net reaches preset value, the data that described terminal is sent are carried out flow unloading.
13. systems according to claim 10, is characterized in that, described business information comprises the tagged word of the data that described terminal sends.
14. systems according to claim 10, is characterized in that, described system also comprises:
Mobile management entity, is that described terminal is selected local packet data network gateway for utilizing the positional information of described terminal to report, so that described terminal is set up Packet Data Network with selected local packet data network gateway, is connected.
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