CN106712973A - Session binding method and system - Google Patents
Session binding method and system Download PDFInfo
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- CN106712973A CN106712973A CN201611177015.0A CN201611177015A CN106712973A CN 106712973 A CN106712973 A CN 106712973A CN 201611177015 A CN201611177015 A CN 201611177015A CN 106712973 A CN106712973 A CN 106712973A
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- session
- terminal
- binding
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- pcrf
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
- H04L12/1403—Architecture for metering, charging or billing
- H04L12/1407—Policy-and-charging control [PCC] architecture
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/58—Association of routers
- H04L45/586—Association of routers of virtual routers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/146—Markers for unambiguous identification of a particular session, e.g. session cookie or URL-encoding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
Abstract
The invention discloses a session binding method and system, relates to the technical field of a communication network and solves the problem that a PPC (Policy and Charging Control) policy cannot be issued due to the fact that a PCRF (Policy and Charging Rules Function) cannot be addressed through a backup DRA (Diameter Routing Agent) with different private synchronous interfaces based on a session signal of a terminal. The method comprises the steps that a PCEF (Policy and Charging Enforcement Function) sends a session establishment request to a vDRA, wherein the session establishment request at least comprises an IP address of the terminal, a session ID and a terminal identity; the vDRA determines a first PCRF identity corresponding to the terminal identity; the vDRA stores the terminal identity, the IP addrss and the session ID and sends the session establishment request to the first PCRF; the first PCRF sends a session establishment response to the vDRA, wherein the session establishment response at least comprises a first PCRF identity; the vDRA sends a session binding data establishment request to the a vSBDB, wherein the session binding data establishment request comprises session binding information, the session binding information comprises the terminal identity, the IP address, the session ID and the first PCRF identity; and the vSBDB stores the session binding information. The scheme provided by the method and the system is applicable to session binding.
Description
Technical field
The present invention relates to technical field of communication network, more particularly to a kind of method and system of binding session.
Background technology
Utilization strategies and charging control (Policy and Charging Control, hereinafter referred to as PCC) framework, can be with
Realize charging control and policy control based on Business Stream.In PCC frameworks, "Policy and Charging Rules Function unit (Policy
And Charging Rules Function, hereinafter referred to as PCRF) by PCC policy distributions to strategy with charge execution function list
First (Policy and Charging Enforcement Function, hereinafter referred to as PCEF), to cause PCEF according to issuing
PCC strategies charging and corresponding control are carried out to the business of terminal.
In order to ensure correctly issuing and perform, it is necessary to allow the different PCC session signalings of same terminal to be routed to for PCC strategies
One PCRF.In the scheme of prior art, after terminal is connected to IP network, PCEF is to Diameter route agents
(Diameter Routing Agent, hereinafter referred to as DRA) sends session signaling, and DRA is deposited after receiving session signaling according to itself
Storage international mobile subscriber identity (International Mobile Subscriber Identification Number,
Hereinafter referred to as IMSI) or mobile user comprehensive service digital net numbering (Mobile Subscriber Integrated
Service Digital Network number, hereinafter referred to as MSISDN) with the corresponding relation of PCRF, by session signaling hair
The corresponding PCRF of terminal IMSI or MSISDN is delivered to, while recording conversation binding information, binding session information includes terminal IMSI
Or the corresponding relation of MSISDN and IP, PCRF so that the DRA by the different sessions signalling route of the terminal to same
PCRF.Additionally, in order to ensure terminal the DRA failure under conditions of can also carry out PCRF addressing, it is necessary to by the DRA record
Binding session information real-time synchronization to Backup DR A, to enable the terminal to carry out PCRF addressing by Backup DR A.
However, DRA uses privately owned sync cap at present, DRA is merely able to be synchronized to session binding information with phase
With the Backup DR A of privately owned sync cap, when two DRA have different privately owned sync caps, binding session letter is may result in
Breath cannot real-time synchronization.Therefore, when wherein one DRA cannot normal work when, the session signaling of terminal cannot be by Backup DR A
Being addressed to PCRF, and then result in PCC strategies normally to issue.
The content of the invention
The present invention provides a kind of method and system of binding session, and the session signaling for solving terminal cannot be by having
The Backup DR A of different privately owned sync caps is addressed to the tactful problems that cannot normally issue of PCC caused by PCRF.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that：
A kind of method of binding session, methods described is applied in binding session system, and the binding session system includes
Terminal, strategy and charge execution function unit PCEF, application function unit AF, at least one virtual Diameter route agents
VDRA, virtual session binding data storehouse vSBDB and "Policy and Charging Rules Function unit PCRF, methods described include：
The PCEF sends conversation establishing and asks to vDRA, conversation establishing request at least the IP address including terminal,
SessionID, terminal iidentification；
The vDRA determines the corresponding PCRF marks of the terminal iidentification；
The vDRA stores the terminal iidentification, the IP address, the Session ID of the terminal, by session wound
Request is built to send to a PCRF；
First PCRF sends conversation establishing and responds to the vDRA, at least includes in the conversation establishing response described
First PCRF is identified；
The vDRA sends binding session data creation and asks to the vSBDB, the binding session data creation request
Including binding session information, the binding session information includes the terminal iidentification, the IP address, the terminal
A Session ID and PCRF are identified；
The vSBDB stores the binding session information.
A kind of system of binding session, the system includes terminal, PCEF, AF, vDRA, vSBDB, PCRF；
The PCEF, asks for sending conversation establishing to the vDRA, and the conversation establishing request at least includes terminal
IP address, Session ID, terminal iidentification；
The vDRA, for determining the corresponding PCRF marks of the terminal iidentification；
The vDRA, is additionally operable to store the Session ID of the terminal iidentification, the IP address, the terminal, by institute
Conversation establishing request is stated to send to a PCRF；
First PCRF, responds for sending conversation establishing to the vDRA, is at least wrapped in the conversation establishing response
Include the PCRF marks；
The vDRA, is additionally operable to send the request of binding session data creation, the binding session data wound to the vSBDB
To build request include binding session information, and the binding session information includes the terminal iidentification, the IP address, the terminal
A Session ID and PCRF are identified；
The vSBDB, for storing the binding session information.
Cannot be addressed to by the Backup DR A with different privately owned sync caps from the session signaling of terminal in the prior art
PCC strategies cannot normally be issued and compared caused by PCRF, and the binding session flow of the embodiment of the present invention need not be by privately owned
Sync cap is synchronized to binding session information, but the binding session information of each terminal is stored in vSBDB, is made
Obtaining any one vDRA need to only access the binding session information stored in the vSBDB, it is possible to be sought according to binding session information
To PCRF, the session signaling for solving terminal cannot be addressed to PCRF by the Backup DR A with different privately owned sync caps for location
Caused by the PCC problems that cannot normally issue of strategy.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of illustrative diagram of the system of binding session provided in an embodiment of the present invention；
Fig. 2 is the illustrative diagram of NFV frameworks provided in an embodiment of the present invention；
Fig. 3 is a kind of schematic flow sheet of the method for binding session provided in an embodiment of the present invention；
Fig. 4 is the schematic flow sheet of the method for another binding session provided in an embodiment of the present invention；
Fig. 5 is the schematic flow sheet of the method for another binding session provided in an embodiment of the present invention；
Fig. 6 is the schematic flow sheet of the method for another binding session provided in an embodiment of the present invention；
Fig. 7 is the schematic flow sheet of the method for another binding session provided in an embodiment of the present invention；
Fig. 8 is a kind of illustrative diagram of the system of binding session provided in an embodiment of the present invention.
Specific 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 carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
The method of binding session provided in an embodiment of the present invention, is applied in the system of binding session, as shown in figure 1, should
System includes：It is terminal, PCEF, application function unit (Application Function, hereinafter referred to as AF), at least one virtual
Diameter route agents (Virtual Diameter Routing Agent, hereinafter referred to as vDRA), virtual session binding number
According to storehouse (Virtual Session Banding DataBase, hereinafter referred to as vSBDB) and PCRF, and Fig. 1 shows system
Internal annexation.
Wherein, PCRF is used to formulate PCC strategies, and the PCC of formulation strategy dynamic is issued into PCEF, so as to PCEF according to
The strategy execution is based on charging and the policy control of Business Stream.
PCEF is used to detect traffic data, by Gx interfaces and PCRF interactive sessions signalings, and according to from
The PCC strategies that PCRF is obtained, perform the charging based on Business Stream and policy control.
AF is used to detect the business information of terminal, and provides business information to PCRF, and meeting is interacted with PCRF by Rx interface
Words signaling, so that PCRF formulates PCC strategies or by default PCC policy distributions to PCEF according to business information, for example, when eventually
When voice call is dialed at end, type of service of the business information comprising terminal that AF is provided to PCRF, the type of service is based on LTE
Speech business (Voice over LTE, hereinafter referred to as VoLTE), then PCRF is according to the type of service for receiving, by VoLTE industry
It is engaged in corresponding PCC policy distributions to PCEF.
Gx interfaces, for interactive sessions signaling between PCEF and PCRF.
Rx interface, for interactive sessions signaling between AF and PCRF.
VDRA is mainly used in Diameter route agents, session signaling can be processed and forwarded.
VSBDB is used for the binding session information of each terminal in storage system, to cause that vDRA is tied up by inquiring about the session
Determine information and be addressed to PCRF.
It should be noted that the embodiment of the present invention is separated the function of the DRA of prior art, vDRA is respectively provided with
And vSBDB.Wherein, vSBDB is used to store binding session information, and the session that multiple vDRA can be shared in same vSBDB is tied up
Determine information, and then when wherein a certain vDRA breaks down, the vDRA in addition to failure vDRA still can be by accessing vSBDB
In binding session information address PCRF.It is understood that a vSBDB can connect multiple vDRA, only example in Fig. 1
Property shows a vDRA.
It should be noted that, vDRA and vSBDB is to operate in network function virtualization (Network Functions
Virtualisation, hereinafter referred to as NFV) software on framework.NFV frameworks provided in an embodiment of the present invention as shown in Figure 2
Schematic diagram.The framework includes network function virtualized infrastructure (Network Functions Virtualisation
Infrastructure, hereinafter referred to as NFVI) layer, management with layout (Management and Orchestration, below letter
Claim MANO) layer, virtual network function (Virtual Network Function, hereinafter referred to as VNF) layer, a vSBDB and
At least one vDRA being connected with vSBDB.
It should be noted that a vSBDB and at least one vDRA being connected with vSBDB are operated in a software form
VNF layers of NFV frameworks.Wherein, VNF layers is used for the functional software of communication equipment.In the embodiment of the present invention, VNF layers by DRA
Function realized jointly by software vSBDB and vDRA.
Wherein, NFVI layers is used to provide resource for the software of virtualization, it is necessary to explanation, NFVI layers includes calculating, deposits
Storage, network hardware resources and virtual resources.In the embodiment of the present invention, a vSBDB and be connected with vSBDB at least one
Individual vDRA needs to call the resource in NFVI layers to realize respective function.
MANO layers is used to be managed hardware/virtual resources and VNF and layout.
By NFV frameworks, the function of proprietary communication equipment can be realized by software and common hardware, the present invention is real
Apply and the function of existing DRA equipment is realized by vSBDB and vDRA softwares in example, and by calling the money in NFVI layers
Function is realized in source, so as to avoid using the different privately owned sync cap of hardware cannot simultaneous session binding information problem.
System with reference to shown in Fig. 1, in order to the session signaling for solving terminal cannot be by with different privately owned sync caps
Backup DR A be addressed to the problem that PCC strategies cannot be issued normally caused by PCRF, the embodiment of the invention provides a kind of meeting
The method for talking about binding, as shown in figure 3, the method includes：
Step 301, PCEF to vDRA send conversation establishing ask, conversation establishing request at least including terminal IP address,
Session ID, terminal iidentification.
Wherein, terminal iidentification is the IMSI or MSISDN of terminal.
It should be noted that, it is necessary to the server in network where passing through is registered after starting up of terminal, only
When terminal is legally registered, the network could be terminal service.Endpoint registration is referred to as adhering to the process of network
Journey.After terminal is attached to network, the webserver is its dynamic IP address of distribution.For example, the webserver is user A
The IP1 of the terminal A1 distribution for being used is 168.172.1.20.Additionally, it is necessary to create session, network takes after starting up of terminal
Business device needs to distribute a session identification Session ID for it.For example, the webserver is the Session of terminal A1 distribution
ID is 1.
It should be noted that, from conversation establishing to session termination phase, Session ID are constant to each terminal.Only
Session termination and after re-creating, Session ID can just change.
Step 302, vDRA determine the corresponding PCRF marks of terminal iidentification.
It should be noted that be stored with vDRA terminal iidentification and the corresponding relation of PCRF marks.For example, vDRA is stored with
The corresponding relation of MSISDN and PCRF marks.It should be noted that MSISDN refers to calling subscriber calls 2G/3G/4G user institute
The number dialed, the i.e. telephone number of user's external disclosure, such as when MSISDN is 18611111111, the MSISDN is in 186
Number section, when MSISDN is 15011111111, the MSISDN is in 150 number sections.
The terminal-pair that MSISDN is in 186 number sections answers PCRF1, and the terminal-pair that MSISDN is in 150 number sections answers PCRF2.If
The MSISDN of terminal A1 is 18611111111, then vDRA judges that terminal A1 is in 186 number sections according to the MSISDN of terminal, and
Determine that the terminal-pair of the number section answers PCRF1.
Step 303, vDRA storages terminal iidentification, IP address, Session ID, it will words request to create is sent to first
PCRF。
For example, storing at least following information in vDRA：The MSISDN of terminal A1 is that 18611111111, IP address is
168.172.1.20, Session ID are 1.
Step 304, a PCRF send conversation establishing and respond to vDRA, and a PCRF is at least included in conversation establishing response
Mark.
It should be noted that after the conversation establishing request that PCRF receives vDRA transmissions, it should respond session wound
Building should carry PCRF marks in request, and conversation establishing response.
For example, PCRF1 includes following information in being responded to the conversation establishing that vDRA sends：First PCRF is designated
PCRF1。
Step 305, vDRA send binding session data creation and ask to vSBDB, and the request of binding session data creation includes
Binding session information, binding session information includes terminal iidentification, IP address, Session ID and a PCRF mark.
It should be noted that vDRA receive a PCRF transmission conversation establishing response after, should extract session wound
Build the PCRF marks included in response, and terminal iidentification, IP address, the Session that a PCRF is identified and stored
ID constitutes binding session information, then sends to vSBDB the binding session information, to cause that vSBDB storage binding sessions are believed
Breath.
It should be noted that vDRA is sent to after vSBDB by session binding information, can the automatic terminal mark that will be stored
Knowledge, IP address, Session ID are deleted.
Step 306, vSBDB storage binding session information.
It should be noted that after vSBDB storage binding session information, vDRA can just be stored by inquiring about vSBDB
Binding session information address PCRF.
The method of binding session provided in an embodiment of the present invention, it is not necessary to by privately owned sync cap to binding session information
Synchronize, but the binding session information of each terminal is stored in vSBDB so that any one vDRA only needs to access
The binding session information stored in the vSBDB, it is possible to PCRF is addressed to according to binding session information, the meeting of terminal is solved
PCC strategies cannot be normal caused by words signaling cannot be addressed to PCRF by the Backup DR A with different privately owned sync caps
The problem for issuing.
It should be noted that when the change of network environment residing for terminal, for example, the IP address of terminal may become
Change, now, in order that vDRA can be addressed to correct PCRF, it is necessary to be tied up to session in vSBDB according to the IP address after change
The IP address for determining information is updated.Based on this, in another implementation provided in an embodiment of the present invention, as shown in figure 4,
After step 306, vSBDB storage binding session information, also need to perform step 401-408.
Step 401, PCEF send session updates and ask to vDRA, and terminal is at least included in session updates request
Session ID and more new IP address.
For example, after terminal A1 accesses new network, the server in new network is the new IP ground of terminal A1 distribution
Location 192.168.2.20, Session ID are 1.After terminal initiates session updates flow, PCEF can send session updates to vDRA
Session ID and more new IP address in request, wherein session updates request at least including terminal.
Step 402, vDRA storage Session ID and more new IP address, send the first binding session data and look into vSBDB
Instruction is ask, Session ID are included in the instruction of the first binding session data query.
The corresponding PCRF marks of step 403, vSBDB inquiry Session ID.
For example, the first binding session data query Session ID for including of instruction that vSBDB is received are 1, then its energy
Enough determine that the corresponding PCRF of Session ID are PCRF1.
Step 404, vSBDB send the first binding session data query and respond to vDRA, the first binding session data query
Response includes the corresponding PCRF marks of Session ID.
It is understood that after vSBDB inquires the corresponding PCRF1 of Session ID, PCRF1 is sent to vDRA,
To cause that vDRA is addressed to PCRF1.
Step 405, vDRA send to Session ID corresponding PCRF session updates request.
Step 406, the corresponding PCRF of Session ID send session updates and respond to vDRA, in session updates response at least
Including the corresponding PCRF marks of Session ID.
For example, including following information in session updates response：PCRF identifies PCRF1.
Step 407, vDRA send binding session data and update request to vSBDB, and binding session data update request to be included
Session ID, more new IP address.
It should be noted that vDRA receive step 406 session updates response after, can by Session ID, update
IP address is sent to vSBDB, to cause that vSBDB is updated to the binding session information for storing.
It should be noted that vDRA is sent to after vSBDB by the Session ID of storage, more new IP address, can be certainly
It is dynamic to be deleted the Session ID of storage, more new IP address.
Be updated to for IP address in the corresponding binding session information of Session ID to update IP ground by step 408, vSBDB
Location.
For example, vSBDB receive vDRA transmission binding session data update request after, to store Session ID
Binding session information for 1 is updated, and IP address therein is updated to the more new IP address 192.168.2.20 of terminal.
The method of binding session provided in an embodiment of the present invention, after the IP address of terminal changes, vDRA can
PCRF is addressed by the binding session information updated in vSBDB, the success rate of addressing PCRF is improve.
It should be noted that when the change of network environment residing for terminal, for example, the corresponding PCRF of terminal may occur event
Barrier, now, in order that vDRA can be addressed to correct PCRF, it is necessary to session in vSBDB according to the PCRF marks after change
The PCRF marks of binding information are updated.Based on this, in another implementation provided in an embodiment of the present invention, such as Fig. 5
It is shown, after step 306, vSBDB storage binding session information, also need to perform step 501-509.
Step 501, PCEF send session updates and ask to vDRA, and terminal is at least included in session updates request
Session ID。
Step 502, vDRA storage Session ID, send the first binding session data query and instruct to vSBDB, the first meeting
Session ID are included in words binding data query statement.
Step 503, the corresponding PCRF of vSBDB inquiry Session ID.
For example, the first binding session data query Session ID for including of instruction that vSBDB is received are 1, then its energy
Enough determine that the corresponding PCRF of Session ID are PCRF1.
Step 504, vSBDB send the first binding session data query and respond to vDRA, the first binding session data query
Response includes the corresponding PCRF marks of Session ID.
It is understood that after vSBDB inquires the corresponding PCRF1 of Session ID, PCRF1 is sent to vDRA,
To cause that vDRA is addressed to PCRF1.
Step 505, vDRA send to the corresponding PCRF of Session ID of terminal session updates request.
What if the corresponding PCRF of Session ID that step 506, vDRA are not received by terminal in Preset Time sent
Session updates are responded, then sent to backup PCRF session updates request.
If it should be noted that within Preset Time, vDRA is not received by the session updates sound that corresponding PCRF is returned
Should, then vDRA determines that the PCRF breaks down.Now, if there is the normal PCRF of other backups in network, and vDRA
In be configured with the route stand-by strategy of PCRF, then vDRA after the corresponding PCRF of Session ID that cannot be addressed to terminal,
By according to the route stand-by strategy for itself configuring, it will words update request and send to backup PCRF.
For example, after PCRF1 failures, also having the normal PCRF2 of backup in network, then vDRA cannot be addressed to
After PCRF1, by according to the route stand-by strategy configured in vDRA, PCRF2 is addressed to.
Step 507, backup PCRF send session updates and respond to vDRA, and backup PCRF is at least included in session updates response
Mark.
For example, including following information in session updates response：Backup PCRF identifies PCRF2.
Step 508, vDRA send binding session data and update request to vSBDB, and binding session data update request to be included
Session ID, backup the PCRF mark of terminal.
It should be noted that vDRA receive step 507 session updates response after, can by Session ID, backup
PCRF marks are sent to vSBDB, to cause that vSBDB is updated to the binding session information for storing.
It should be noted that vDRA is sent to after vSBDB by the Session ID of storage, can automatically by storage
Session ID are deleted.
Step 509, vSBDB are by the Session ID of the terminal in the corresponding binding session information of the Session ID of terminal
Corresponding PCRF marks are updated to backup PCRF marks.
For example, vSBDB receive vDRA transmission binding session data update request after, to store Session ID
Binding session information for 1 is updated, and the corresponding PCRF marks of the Session ID of terminal therein are updated into terminal
Backup PCRF identifies PCRF2.
The method of binding session provided in an embodiment of the present invention, after the corresponding PCRF of terminal breaks down, vDRA energy
Binding session information enough by being updated in vSBDB addresses PCRF, improves the success rate of addressing PCRF.
It should be noted that, when terminal session terminates, for example, shut down, in order to save the memory cost of vSBDB, it should right
The corresponding binding session information of session termination terminal is cleared up.Based on this, in another realization provided in an embodiment of the present invention
In mode, as shown in fig. 6, after step 306, vSBDB storage binding session information, also needing to perform step 601-608.
Step 601, PCEF send session removal request to vDRA, and terminal is at least included in session removal request
Session ID。
It should be noted that after terminal initiates session termination flow, PCEF can send session removal request to vDRA, its
In, the Session ID that the session removal request includes are 1, to cause Session IDs of the vDRA in session removal request
Inquiry vSBDB.
Step 602, vDRA storage Session ID, send the first binding session data query and instruct to vSBDB, the first meeting
Session ID are included in words binding data query statement.
Step 603, the corresponding PCRF marks of Session ID of vSBDB inquiry terminals.
The Session ID that the first binding session data query instruction that vSBDB is received includes are 1, then it is according to storage
Binding session information can determine the corresponding PCRF of Session ID be PCRF1.
Step 604, vSBDB send the first binding session data query and respond to vDRA, the first binding session data query
Response includes the corresponding PCRF marks of Session ID.
It should be noted that vSBDB inquires the PCRF corresponding to the binding session information that Session ID are 1, i.e.,
After PCRF1, PCRF1 is sent to vDRA, to cause that vDRA is addressed to PCRF1.
Session removal request is sent PCRF corresponding to Session ID by step 605, vDRA.
Step 606, the corresponding PCRF of Session ID send session and delete response to vDRA, and session is deleted in responding at least
Session ID including terminal.
For example, the Session ID that the session deletion response that PCRF sends includes are 1.
Step 607, vDRA send binding session data removal request to vSBDB, and binding session data removal request includes
Session ID。
It should be noted that vDRA is sent to after vSBDB by the Session ID of storage, can automatically by storage
Session ID are deleted.
Step 608, vSBDB are by the corresponding binding session information deletions of the Session ID of terminal.
VSBDB is received after the binding session data removal request of vDRA transmissions, and the Session ID for deleting storage are 1
Binding session information, saved the memory cost of vSBDB.
It should be noted that, step 605, vDRA by session removal request send to the corresponding PCRF of Session ID it
Afterwards, the Session ID that PCRF can also be in session removal request, indicate PCEF to delete the corresponding terminals of Session ID
Shared resource, for example, delete the bandwidth resources shared by the corresponding terminals of Session ID, so as to realize to corresponding terminal
The shared communication resource is discharged, so that the online terminal in addition to the terminal is used.
The method of binding session provided in an embodiment of the present invention, after terminal terminates session, vSBDB is by terminal
The corresponding binding session information deletions of Session ID, so as to save the expense of its internal memory.
It should be noted that, when AF is received in the session request of terminal transmission after the business information that includes, AF can be by
The business information reports to PCRF, to cause that PCRF formulates the corresponding PCC strategies of the business information.Wherein, business information be with
The information of the business datum correlation of terminal transmitting-receiving, business information at least includes traffic type information, and traffic type information is mark
The information of the traffic data type of terminal transmitting-receiving, such as VoLTE business.Based on this, in another kind provided in an embodiment of the present invention
In implementation, as shown in fig. 7, after step 306, vSBDB storage binding session information, also needing to perform step 701-706.
Step 701, terminal send session request to AF.
It should be noted that when terminal transmitting and receiving service data, terminal sends session request to AF, wrapped in the session request
Containing business information.For example, terminal A1 dials VoLTE phones, then terminal A1 sends session request to AF, and the session request is included
The business information of terminal A1, such as business information are：The type of service of terminal A1 is VoLTE business.
Step 702, AF send session request, the current IP address of carried terminal in session request to vDRA.
For example, when terminal A1 is by comprising type of service, for the business information of VoLTE is sent to AF, AF believes the business
Breath reports to PCRF by vDRA, to cause that PCRF formulates corresponding PCC strategies according to business information.
Step 703, vDRA send the second binding session data query and instruct according to session request to vSBDB, the second session
Current IP address is included in binding data query statement.
The corresponding PCRF marks of step 704, vSBDB inquiries current IP address.
For example, the current IP address that the second binding session data query instruction that vSBDB is received includes is
192.168.6.6, then it can determine that the corresponding PCRF of the current IP address is PCRF2 according to the binding session information of storage.
Step 705, vSBDB send the second binding session data query and respond to vDRA, the second binding session data query
Comprising the corresponding PCRF marks of current IP address in response.
For example, vSBDB inquires the corresponding PCRF of current IP address, i.e. after PCRF2, PCRF2 marks are sent extremely
VDRA, to cause that vDRA is addressed to PCRF2.
Session request is sent PCRF corresponding to current IP address by step 706, vDRA.
It should be noted that after PCRF2 receives the session request of vDRA transmissions, can be included according to session request
The business information of terminal A1, the i.e. type of service of terminal A1 be VoLTE business, by about the PCC policy distributions of VoLTE business extremely
PCEF, then PCC strategies are performed by PCEF, the VoLTE business to terminal A1 carries out charging and policy control.
The method of binding session provided in an embodiment of the present invention, when terminal transmitting and receiving service data, vDRA is by inquiry
The binding session information stored in vSBDB addresses PCRF, and then the business information that AF is reported is sent to PCRF, to ensure PCRF
The PCC strategies of formulation can be issued successfully.
Corresponding to above-mentioned method flow, in order to the session signaling for solving terminal cannot connect by with different privately owned synchronizations
The Backup DR A of mouth is addressed to the tactful problems that cannot normally issue of PCC caused by PCRF.The embodiment of the present invention proposes one kind
The system of binding session, as shown in figure 8, the system includes vSBDB 801, vDRA 802, PCRF 803, PCEF 804, AF
805th, terminal 806.Wherein, backup PCRF 803 is also show in Fig. 8.
PCEF 804, asks for sending conversation establishing to vDRA 802, and conversation establishing request at least includes terminal 806
IP address, Session ID, terminal iidentification；
VDRA 802, for determining that the corresponding PCRF 803 of terminal iidentification is identified；Storage terminal iidentification, IP address,
Session ID, it will words request to create is sent to a PCRF 803；
First PCRF 803, is responded for sending conversation establishing to vDRA 802, and the is at least included in conversation establishing response
One PCRF is identified；
VDRA 802, is additionally operable to send the request of binding session data creation to vSBDB 801, and binding session data creation please
Ask including binding session information, binding session information includes terminal iidentification, IP address, Session ID and a PCRF mark
Know；
VSBDB 801, for storing binding session information.
In another implementation that the embodiment of the present invention is proposed, PCEF 804 is additionally operable to send meeting to vDRA 802
Words update request, Session ID and more new IP address in session updates request at least including terminal 806；
VDRA 802, is additionally operable to store Session ID and more new IP address, and the first binding session is sent to vSBDB 801
Data query is instructed, and Session ID are included in the instruction of the first binding session data query；
VSBDB 801, is additionally operable to the corresponding PCRF marks of inquiry Session ID；The first session is sent to vDRA 802 to tie up
Determine data query response, the response of the first binding session data query includes the corresponding PCRF marks of Session ID；
VDRA 802, is additionally operable to send session updates request to the corresponding PCRF 803 of Session ID；
The corresponding PCRF 803 of Session ID, respond for sending session updates to vDRA 802, session updates response
In at least include Session ID corresponding PCRF marks；
VDRA 802, is additionally operable to send the renewal request of binding session data to vSBDB 801, and binding session data update please
Ask including Session ID, more new IP address；
VSBDB 801, is additionally operable to be updated to the IP address in the corresponding binding session information of Session ID to update IP
Address.
In another implementation that the embodiment of the present invention is proposed, PCEF 804 is additionally operable to send meeting to vDRA 802
Words update request, at least Session ID including terminal 806 in session updates request；
VDRA 802, is additionally operable to store Session ID, and sending the first binding session data query to vSBDB 801 refers to
Order, Session ID are included in the instruction of the first binding session data query；
VSBDB 801, is additionally operable to the corresponding PCRF 803 of inquiry Session ID；The first session is sent to vDRA 802 to tie up
Determine data query response, the response of the first binding session data query includes the corresponding PCRF marks of Session ID；
VDRA 802, is additionally operable to send session updates request to the corresponding PCRF 803 of Session ID of terminal 806；
If the session updates response that the corresponding PCRF 803 of the Session ID that terminal 806 is not received by Preset Time send,
Then session updates request is sent to backup PCRF 803；
Backup PCRF 803, responds for sending session updates to vDRA 802, at least includes in session updates response standby
Part PCRF marks；
VDRA 802, is additionally operable to send the renewal request of binding session data to vSBDB 801, and binding session data update please
The Session ID including terminal 806, backup PCRF is asked to identify；
VSBDB 801, is additionally operable to the terminal 806 in the corresponding binding session information of the Session ID of terminal 806
The corresponding PCRF marks of Session ID are updated to backup PCRF marks.
In another implementation that the embodiment of the present invention is proposed, PCEF 804 is additionally operable to send meeting to vDRA 802
Words removal request, at least Session ID including terminal 806 in session removal request；
VDRA 802, is additionally operable to store Session ID, and sending the first binding session data query to vSBDB 801 refers to
Order, Session ID are included in the instruction of the first binding session data query；
VSBDB 801, is additionally operable to the corresponding PCRF marks of inquiry Session ID；The first session is sent to vDRA 802 to tie up
Determine data query response, the response of the first binding session data query includes the corresponding PCRF marks of Session ID；
VDRA 802, is additionally operable to for session removal request to send PCRF 803 corresponding to Session ID；
The corresponding PCRF 803 of Session ID, are additionally operable to send session deletion response to vDRA 802, and session is deleted and rung
At least Session ID including terminal 806 in answering；
VDRA 802, is additionally operable to send binding session data removal request to vSBDB 801, and binding session data are deleted please
Ask including Session ID；
VSBDB 801, is additionally operable to the corresponding binding session information deletions of the Session ID of terminal 806.
In another implementation that the embodiment of the present invention is proposed, terminal 806 please for sending session to AF 805
Ask；
AF 805, for sending session request, the current IP address of carried terminal 806 in session request to vDRA 802；
VDRA 802, is additionally operable to send the instruction of the second binding session data query to vSBDB 801 according to session request, the
Current IP address is included in the instruction of two binding session data queries；
VSBDB 801, is additionally operable to the corresponding PCRF marks of inquiry current IP address；The second session is sent to vDRA 802 to tie up
Data query response is determined, comprising the corresponding PCRF marks of current IP address in the response of the second binding session data query；
VDRA 802, is additionally operable to for session request to send PCRF 803 corresponding to current IP address.
Cannot be addressed to by the Backup DR A with different privately owned sync caps from the session signaling of terminal in the prior art
PCC strategies cannot normally be issued and compared caused by PCRF, and the binding session flow of the embodiment of the present invention need not be by privately owned
Sync cap is synchronized to binding session information, but the binding session information of each terminal is stored in vSBDB, is made
Obtaining any one vDRA need to only access the binding session information stored in the vSBDB, it is possible to be sought according to binding session information
To PCRF, the session signaling for solving terminal cannot be addressed to PCRF by the Backup DR A with different privately owned sync caps for location
Caused by the PCC problems that cannot normally issue of strategy.
Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can be borrowed
Software is helped to add the mode of required common hardware to realize, naturally it is also possible to which by hardware device, but the former is in many cases
More preferably implementation method.Based on such understanding, technical scheme substantially contributes to prior art in other words
Part can be embodied in the form of software product, the computer software product store in the storage medium that can read,
Such as the floppy disk of computer, hard disk or CD etc., including some instructions are used to so that a computer equipment (can be individual calculus
Machine, server, or network equipment etc.) perform method described in each embodiment of the invention.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of method of binding session, it is characterised in that methods described is applied in binding session system, the binding session
System includes terminal, strategy and charge execution function unit PCEF, application function unit AF, at least one virtual Diameter roads
By acting on behalf of vDRA, virtual session binding data storehouse vSBDB and "Policy and Charging Rules Function unit PCRF, methods described bag
Include：
The PCEF sends conversation establishing and asks to vDRA, conversation establishing request at least the IP address including terminal,
Session ID, terminal iidentification；
The vDRA determines the corresponding PCRF marks of the terminal iidentification；
The vDRA stores the terminal iidentification, the IP address, the Session ID of the terminal, please by the conversation establishing
Ask transmission a to PCRF；
First PCRF sends conversation establishing and responds to the vDRA, and described first is at least included in the conversation establishing response
PCRF is identified；
The vDRA sends binding session data creation and asks to the vSBDB, and the binding session data creation request includes
Binding session information, the binding session information includes the terminal iidentification, the IP address, the Session ID of the terminal
And the PCRF marks；
The vSBDB stores the binding session information.
2. the method for binding session according to claim 1, it is characterised in that store the session in the vSBDB and tie up
Determine after information, methods described also includes：
The PCEF sends session updates and asks to the vDRA, and the institute of the terminal is at least included in the session updates request
State the Session ID and more new IP address of terminal；
The vDRA stores the Session ID and the more new IP address of the terminal, and the first session is sent to the vSBDB
Binding data query statement, the Session ID comprising the terminal in the first binding session data query instruction；
The vSBDB inquires about the corresponding PCRF marks of Session ID of the terminal；
The vSBDB sends the first binding session data query and responds to the vDRA, the first binding session data query
Response includes the corresponding PCRF marks of the Session ID of the terminal；
The vDRA sends to the corresponding PCRF of Session ID of the terminal session updates request；
The corresponding PCRF of Session ID of the terminal send session updates and respond to the vDRA, the session updates response
In in Session ID corresponding PCRF marks at least including the terminal；
The vDRA sends binding session data and updates request to the vSBDB, and the binding session data update request to be included
The Session ID of the terminal, the more new IP address；
IP address in the corresponding binding session information of the Session ID of the terminal is updated to the renewal by the vSBDB
IP address.
3. the method for binding session according to claim 1, it is characterised in that store the session in the vSBDB and tie up
Determine after information, methods described also includes：
The PCEF sends session updates and asks to the vDRA, and the institute of the terminal is at least included in the session updates request
State the Session ID of terminal；
The vDRA stores the Session ID of the terminal, and sending the first binding session data query to the vSBDB instructs,
Session ID comprising the terminal in the first binding session data query instruction；
The vSBDB inquires about the corresponding PCRF of Session ID of the terminal；
The vSBDB sends the first binding session data query and responds to the vDRA, the first binding session data query
Response includes the corresponding PCRF marks of the Session ID of the terminal；
The vDRA sends to the corresponding PCRF of Session ID of the terminal session updates request；
If the vDRA is not received by the session that the corresponding PCRF of Session ID of the terminal send in Preset Time
Response is updated, is then sent to backup PCRF session updates request；
The backup PCRF sends session updates and responds to the vDRA, and the backup is at least included in the session updates response
PCRF is identified；
The vDRA sends binding session data and updates request to the vSBDB, and the binding session data update request to be included
The Session ID of the terminal, the backup PCRF are identified；
The vSBDB is by the Session ID of the terminal in the corresponding binding session information of the Session ID of the terminal
Corresponding PCRF marks are updated to the backup PCRF marks.
4. the method for the binding session according to claim 1,2 or 3, it is characterised in that store the meeting in the vSBDB
After words binding information, methods described also includes：
The PCEF sends session removal request to the vDRA, and the terminal is at least included in the session removal request
Session ID；
The vDRA stores the Session ID of the terminal, and sending the first binding session data query to the vSBDB instructs,
Session ID comprising the terminal in the first binding session data query instruction；
The vSBDB inquires about the corresponding PCRF marks of Session ID of the terminal；
The vSBDB sends the first binding session data query and responds to the vDRA, the first binding session data query
Response includes the corresponding PCRF marks of the Session ID of the terminal；
The vDRA sends the session removal request to the corresponding PCRF of Session ID of the terminal；
The corresponding PCRF of Session ID of the terminal send session and delete response to the vDRA, and response is deleted in the session
In at least including the terminal Session ID；
The vDRA sends binding session data removal request to the vSBDB, and the binding session data removal request includes
The Session ID of the terminal；
The vSBDB is by the corresponding binding session information deletions of the Session ID of the terminal.
5. the method for binding session according to claim 4, it is characterised in that methods described also includes：
The terminal sends session request to AF；
The AF sends the session request to the vDRA, and the current IP address of the terminal is carried in the session request；
The vDRA sends the second binding session data query and instructs according to the session request to the vSBDB, and described second
The current IP address is included in the instruction of binding session data query；
The vSBDB inquires about the corresponding PCRF marks of the current IP address；
The vSBDB sends the second binding session data query and responds to the vDRA, the second binding session data query
Comprising the corresponding PCRF marks of the current IP address in response；
The session request is sent PCRF corresponding to the current IP address by the vDRA.
6. a kind of system of binding session, it is characterised in that the system includes terminal, PCEF, AF, vDRA, vSBDB, PCRF；
The PCEF, asks for sending conversation establishing to the vDRA, the conversation establishing request at least IP including terminal
Address, Session ID, terminal iidentification；
The vDRA, for determining the corresponding PCRF marks of the terminal iidentification；Store the terminal iidentification, IP ground
Location, the Session ID of the terminal, conversation establishing request is sent to a PCRF；
First PCRF, is responded for sending conversation establishing to the vDRA, and institute is at least included in the conversation establishing response
State PCRF marks；
The vDRA, is additionally operable to send the request of binding session data creation to the vSBDB, and the binding session data creation please
Ask including binding session information, the binding session information includes the terminal iidentification, the IP address, the terminal
A Session ID and PCRF are identified；
The vSBDB, for storing the binding session information.
7. the system of binding session according to claim 6, it is characterised in that
The PCEF, is additionally operable to send session updates request to the vDRA, at least includes in the session updates request described
The Session ID and more new IP address of the terminal of terminal；
The vDRA, is additionally operable to store the Session ID and the more new IP address of the terminal, and the is sent to the vSBDB
One session binding data query statement, the Session comprising the terminal in the first binding session data query instruction
ID；
The vSBDB, is additionally operable to inquire about the corresponding PCRF marks of Session ID of the terminal；First is sent to the vDRA
Binding session data query is responded, and the first binding session data query response includes the Session ID couple of the terminal
The PCRF for answering is identified；
The vDRA, is additionally operable to send session updates request to the corresponding PCRF of Session ID of the terminal；
The corresponding PCRF of Session ID of the terminal, respond for sending session updates to the vDRA, and the session is more
The corresponding PCRF marks of Session ID in new response at least including the terminal；
The vDRA, is additionally operable to send the renewal request of binding session data to the vSBDB, and the binding session data update please
Ask the Session ID including the terminal, the more new IP address；
The vSBDB, is additionally operable to be updated to the IP address in the corresponding binding session information of the Session ID of the terminal
The more new IP address.
8. the system of binding session according to claim 6, it is characterised in that
The PCEF, is additionally operable to send session updates request to the vDRA, at least includes in the session updates request described
The Session ID of the terminal of terminal；
The vDRA, is additionally operable to store the Session ID of the terminal, and sending the first binding session data to the vSBDB looks into
Ask instruction, the Session ID comprising the terminal in the first binding session data query instruction；
The vSBDB, is additionally operable to inquire about the corresponding PCRF of Session ID of the terminal；The first session is sent to the vDRA
Binding data inquiry response, the first binding session data query response includes that the Session ID of the terminal are corresponding
PCRF is identified；
The vDRA, is additionally operable to send session updates request to the corresponding PCRF of Session ID of the terminal；If
The session updates response that the corresponding PCRF of Session ID of the terminal send is not received by Preset Time, then by institute
Session updates request is stated to send to backup PCRF；
The backup PCRF, is responded for sending session updates to the vDRA, and institute is at least included in the session updates response
State backup PCRF marks；
The vDRA, is additionally operable to send the renewal request of binding session data to the vSBDB, and the binding session data update please
The Session ID including the terminal, the backup PCRF is asked to identify；
The vSBDB, is additionally operable to the terminal in the corresponding binding session information of the Session ID of the terminal
The corresponding PCRF marks of Session ID are updated to the backup PCRF marks.
9. the system of the binding session according to claim 6,7 or 8, it is characterised in that
The PCEF, is additionally operable to send session removal request to the vDRA, at least includes in the session removal request described
The Session ID of terminal；
The vDRA, is additionally operable to store the Session ID of the terminal, and sending the first binding session data to the vSBDB looks into
Ask instruction, the Session ID comprising the terminal in the first binding session data query instruction；
The vSBDB, is additionally operable to inquire about the corresponding PCRF marks of Session ID of the terminal；First is sent to the vDRA
Binding session data query is responded, and the first binding session data query response includes the Session ID couple of the terminal
The PCRF for answering is identified；
The vDRA, is additionally operable to the corresponding PCRF of Session ID sent the session removal request to the terminal；
The corresponding PCRF of Session ID of the terminal, are additionally operable to send session deletion response, the session to the vDRA
Delete at least Session ID including the terminal in response；
The vDRA, is additionally operable to send binding session data removal request to the vSBDB, and the binding session data are deleted please
Seek the Session ID including the terminal；
The vSBDB, is additionally operable to the corresponding binding session information deletions of the Session ID of the terminal.
10. the system of binding session according to claim 9, it is characterised in that
The terminal, for sending session request to AF；
The AF, for sending session request to the vDRA, carries the current IP address of the terminal in the session request；
The vDRA, is additionally operable to send the instruction of the second binding session data query, institute to the vSBDB according to the session request
State during the second binding session data query is instructed comprising the current IP address；
The vSBDB, is additionally operable to inquire about the corresponding PCRF marks of the current IP address；The second session is sent to the vDRA to tie up
Data query response is determined, comprising the corresponding PCRF marks of the current IP address in the second binding session data query response
Know；
The vDRA, is additionally operable to for the session request to send PCRF corresponding to the current IP address.
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