WO2010088821A1 - Procédé et dispositif pour abaisser la politique d'inspection de paquet en profondeur - Google Patents

Procédé et dispositif pour abaisser la politique d'inspection de paquet en profondeur Download PDF

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Publication number
WO2010088821A1
WO2010088821A1 PCT/CN2009/074157 CN2009074157W WO2010088821A1 WO 2010088821 A1 WO2010088821 A1 WO 2010088821A1 CN 2009074157 W CN2009074157 W CN 2009074157W WO 2010088821 A1 WO2010088821 A1 WO 2010088821A1
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WO
WIPO (PCT)
Prior art keywords
dpi
policy
user
pcrf
subscription information
Prior art date
Application number
PCT/CN2009/074157
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English (en)
Chinese (zh)
Inventor
芮通
施晓峰
周晓云
Original Assignee
中兴通讯股份有限公司
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Publication of WO2010088821A1 publication Critical patent/WO2010088821A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/66—Policy and charging system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data

Definitions

  • the present invention relates to the field of policy and charging control technologies, and in particular to a policy control and charging control architecture (PCC, Policy and Charging Control) of the 3rd Generation Partnership Project (3GPP).
  • PCC Policy control and Charging Control
  • 3GPP 3rd Generation Partnership Project
  • DPI Deep Packet Inspection
  • PCRF Policy and Charging Rules Function
  • PCEF Policy and Charging Enforcement Function
  • the PCRF sends the QoS (Quality of Service) rules to the Bearer Binding and Event Report Function (BBERF) through the Gxx interface.
  • BBERF Bearer Binding and Event Report Function
  • the BBERF does not exchange billing information with the billing system. It is only responsible for the reporting of bearer bindings and related events.
  • the service function entity is a service entity related to the service.
  • the service information is provided to the PCRF through the Rx interface.
  • the SPR Spread Profile Repository
  • the PCRF can be forwarded through the Sp interface.
  • the SPR queries the service information signed by the user.
  • the PCEF sends the online charging information to the online charging system (OSC, Online Charging System) through the Gy interface, and is responsible for the online charging statistics.
  • the offline charging information is sent to the offline charging system (OFCS, Offline Charging System) through the Gz interface. .
  • the PCRF can dynamically send a PCC policy to the PCEF, and the policy information includes QoS and charging information.
  • the PCRF formulates a PCC policy based on the service-related information provided by the AF, the bearer-related information on the PCEF, and the service information subscribed by the user in the SPR.
  • IMS IP Multimedia System
  • VoIP Voice over Internet Protocol
  • Services such as television (IPTV, Internet Protocol Television), video on demand (VOD, Video On Demand), and online games.
  • IMS applications usually use the Session Initiation Protocol.
  • DPI technology when dynamic QoS control is performed for these AF-free services, DPI technology needs to be used, and the prior art uses the static configuration method to configure the DPI policy in the DPI functional entity.
  • the DPI technology analyzes the contents of the IP packet below four layers.
  • the DPI policy of the prior art includes four layers of the source IP address, the destination IP address, the destination port number, and the protocol type, and also includes the seven-layer application. Layers, such as seven-layer feature URLs, are shown in Table 1.
  • the DPI function entity detects that there is a service data flow, it detects the service data flow according to the DPI policy, thereby obtaining the service information of the service data flow.
  • the main object of the present invention is to provide a method and apparatus for issuing a DPI policy.
  • the DPI policy that meets the user's needs can be dynamically customized and delivered, reducing system overhead.
  • the present invention provides a method for delivering a deep packet inspection technology DPI policy, the method comprising: and the DPI functional entity installing and executing the DPI policy.
  • the DPI policy is pre-configured on the PCRF or customized by the PCRF according to the user's subscription information.
  • the subscription information of the user is: the subscription information of the user stored by the PCRF itself or the subscription information of the user acquired by the PCRF from the user subscription database SPR.
  • the method is:
  • the user sends an IP connection access network IP-CAN bearer setup request to the PCRF through the policy and charging execution function entity PCEF;
  • the PCRF searches for the subscription information of the user according to the user information in the IP-CAN bearer setup request, and formulates a DPI policy according to the subscription information of the user, and sends the DPI policy to the DPI function entity;
  • the DPI functional entity installs and executes the PCRF customized DPI policy to complete the IP-CAN
  • the PCEF returns a successful response to the IP-CAN load to the user.
  • the method further includes:
  • the PCRF updates the stored subscription information of the changed user, and modifies the DPI policy corresponding to the subscription information of the user according to the updated subscription information of the user, and sends the modified DPI policy to the PCR policy.
  • the DPI functional entity The DPI functional entity.
  • the DPI function entity performs an update, delete, or install operation on the installed DPI policy according to the modified DPI policy delivered by the PCRF.
  • the steps of the PCRF to send the DPI policy to the DPI functional entity are:
  • the PCRF sends the DPI policy directly to the DPI functional entity or the PCRF sends the DPI policy to the PCEF, and the PCEF forwards the data to the DPI functional entity.
  • the method further includes: when the user goes offline, the PCRF deletes all DPI policies of the user, And notifying the DPI functional entity to delete all DPI policies of the user.
  • the present invention also provides an apparatus for delivering a deep packet inspection technology DPI policy, the apparatus comprising: a policy and charging rule decision entity PCRF, configured to store a preset DPI policy or to customize a DPI according to a subscription information of a user. Policy, and issuing the DPI policy to the DPI functional entity;
  • PCRF policy and charging rule decision entity
  • a DPI functional entity that is configured to receive, install, and execute the received DPI policy.
  • the device further includes: a policy and charging execution function entity PCEF, wherein
  • the PCRF is further configured to send the DPI policy to the PCEF;
  • the PCEF is configured to receive a DPI policy delivered by the PCRF, and forward the DPI policy to a DPI functional entity;
  • the DPI functional entity is further configured to receive, install, and execute the DPI policy forwarded by the PCEF.
  • the PCEF is further configured to: send an IP connection access network IP-CAN bearer setup request to the PCRF; return a response to the user that the IP-CAN bears a successful setup;
  • the PCRF is further configured to: search for the subscription information of the user according to the user information in the IP-CAN bearer setup request, and formulate a DPI policy according to the subscription information of the user, and send the DPI policy to the DPI functional entity;
  • the DPI function entity is further configured to: install and execute the PCRF customized DPI policy, and complete IP-CAN bearer establishment;
  • the PCRF is further configured to: update the stored subscription information of the changed user, and modify the DPI policy corresponding to the subscription information of the user according to the updated subscription information of the user, and modify the DPI.
  • the policy is sent to the DPI functional entity or the PCEF;
  • the PCEF is further configured to: forward the modified DPI policy delivered by the PCRF to the DPI functional entity;
  • the DPI function entity is further configured to: receive the PCEF directly delivered by the PCRF or The modified DPI policy that is forwarded performs an update, delete, or install operation on its own DPI policy according to the modified DPI policy.
  • the PCRF is further configured to: delete all DPI policies of the user, and notify the DPI function entity to delete all DPI policies of the user;
  • the DPI functional entity is further configured to: delete all DPI policies of the user.
  • the PCRF dynamically customizes the DPI policy according to the subscription information of the user.
  • the PCRF also modifies the DPI policy corresponding to the service information and sends the DPI policy to the DPI functional entity.
  • the DPI function entity detects the user's business data stream according to the issued DPI policy, so that the DPI policy that meets the user's requirements can be dynamically customized, so that the DPI function entity only detects the data content that the user cares about.
  • the system can reduce the overhead of the system.
  • dynamic underground transmission can also be performed according to factors such as user level and time.
  • the present invention combines the DPI functional entity in the existing PCC architecture, the information interaction between the PCRF and the AF-free service can also be implemented through the DPI functional entity, and the AF-free services are performed according to the interactive information.
  • FIG. 1 is a schematic diagram of a PCC system architecture in the prior art
  • Embodiment 1 of a PCC system is a schematic structural diagram of Embodiment 1 of a PCC system according to the present invention
  • Embodiment 2 of a PCC system is a schematic structural diagram of Embodiment 2 of a PCC system according to the present invention.
  • FIG. 4 is a schematic flowchart of a method for delivering a DPI policy according to Embodiment 1 of the present invention
  • FIG. 5 is a schematic flowchart of a method for sending a DPI policy according to Embodiment 2 of the present invention.
  • FIG. 6 is a schematic flowchart of a method for delivering a third embodiment of a DPI policy according to the present invention.
  • FIG. 7 is a schematic flowchart of a method for transmitting a fourth embodiment of a DPI policy according to the present invention.
  • FIG. 8 is a schematic flowchart of a method for delivering a fifth embodiment of a DPI policy according to the present invention.
  • FIG. 9 is a schematic flowchart of a method for sending a DPI policy according to Embodiment 6 of the present invention
  • 10 is a schematic flowchart of a method for delivering a DPI policy according to Embodiment 7 of the present invention
  • FIG. 11 is a schematic flowchart diagram of a method for delivering the eighth embodiment of the DPI policy according to the present invention. Preferred embodiment of the invention
  • the method for issuing a DPI policy introduces a DPI technology in a PCC architecture, and the DPI functional entity detects a service data flow of the user, extracts feature information of the service data flow, analyzes the feature information, and obtains the service data.
  • the corresponding business information of the flow introduces a DPI technology in a PCC architecture, and the DPI functional entity detects a service data flow of the user, extracts feature information of the service data flow, analyzes the feature information, and obtains the service data.
  • the corresponding business information of the flow issuing a DPI policy
  • FIG. 2 is a schematic structural diagram of Embodiment 1 of a PCC system according to the present invention.
  • a DPI function entity performs data interaction with a PCRF through an Rx' interface.
  • the invention expands the function of the Rx interface by means of configuration parameters and the like, and becomes an Rx' interface, so that the DPI function entity can report the service information to the PCRF through the Rx' interface; so that the PCRF can send the DPI policy to the DPI function through the Rx' interface.
  • the PCRF and DPI functional entities connected through the Rx' interface constitute a device for issuing a DPI policy of the present invention.
  • the PCRF is configured to customize the DPI policy according to the subscription information of the user, store the pre-configured DPI policy, and directly send the DPI policy to the DPI functional entity, where the subscription information of the user includes the service information subscribed by the user; , used to receive and install DPI policies.
  • the PCRF and the PCEF are connected through the Gx interface, and the information is exchanged.
  • the PCRF customized PCC policy is sent to the PCEF through the Gx interface.
  • FIG. 3 is a schematic structural diagram of Embodiment 2 of a PCC system according to the present invention.
  • a DPI functional entity performs data interaction with a PCRF through a PCEF. Since the Gx interface does not have the function of forwarding the DPI policy, the present invention extends the function of the Gx interface by means of configuration parameters and the like, and becomes a Gx' interface, so that the PCEF can report the service information of the DPI functional entity to the PCRF through the Gx'interface; The PCEF can forward the DPI policy delivered by the PCRF to the DPI functional entity through the Gx interface.
  • the DPI functional entity and the PCRF and PCEF connected through the Gx' interface constitute another apparatus for issuing a DPI policy of the present invention.
  • the PCRF is used to customize the DPI policy according to the subscription information of the user, store the pre-configured DPI policy, and deliver the DPI policy to the PCEF, where the subscription information of the user includes the service information subscribed by the user, and the PCEF is used to customize the PCRF.
  • the DPI policy is forwarded to the DPI functional entity; the DPI functional entity is used to receive and install the DPI policy from the PCEF.
  • FIG. 4 is a schematic flowchart of a method for sending a DPI policy according to Embodiment 1 of the present invention. As shown in the figure, the process specifically includes:
  • Step 401 the DPI function entity is initialized.
  • the initialization operation is performed.
  • Step 402 request a static DPI policy.
  • the DPI function entity Since the DPI function entity is in the initialization phase, no user is online to use the service at this time, so the PCRF cannot customize the DPI policy according to the user's subscription information. At this time, the DPI function entity sends a message to the PCRF through the Rx' interface, and requests the PCRF to send a static DPI policy. Alternatively, the PCRF can also confirm that the DPI function entity has been powered on by periodically sending a message. After the initialization operation is performed, the DPI function is actively performed. The entity issues a static DPI policy. The static DPI policy is pre-configured on the PCRF as needed.
  • Step 403 issuing a static DPI policy.
  • the PCRF sends the static DPI policy directly to the DPI functional entity through the Rx interface.
  • Step 404 installing a static DPI policy.
  • the DPI function entity installs a static DPI policy and completes the initialization operation.
  • FIG. 5 is a schematic flowchart of a method for sending a DPI policy according to Embodiment 2 of the present invention. As shown in the figure, the process specifically includes:
  • Step 501 A DPI function entity initialization is detected.
  • the PCEF can detect the current state of the DPI function entity. Specifically, the DPI function entity can actively notify the PCEF of its own state by sending a message; or, the PCEF can also be sent to the DPI function entity. The message is sent periodically to confirm the current status of the DPI functional entity.
  • Step 502 request a static DPI policy.
  • the PCEF After the PCEF detects that the DPI function entity is initialized, it sends a message to the PCRF through the Gx' interface.
  • the PCRF is requested to send a static DPI policy.
  • Step 503 returning a static DPI policy.
  • the PCRF returns a static DPI policy to the PCEF via the Gx' interface.
  • Step 504 sending a static DPI policy.
  • the PCEF sends a static DPI policy to the DPI functional entity.
  • Step 505 install a static DPI policy.
  • the DPI function entity installs a static DPI policy and completes the initialization operation.
  • Figure 4 and Figure 5 show the flow of the DPI policy issued by the PCRF when the DPI function entity is in the initialization phase. The following describes the flow of the DPI policy sent by the PCRF when a user uses the service.
  • FIG. 6 is a schematic flowchart of a method for sending a third embodiment of a DPI policy according to the present invention. As shown in the figure, the process specifically includes:
  • Step 601 Send an IP connection access network (IP-CAN) bearer setup request.
  • IP-CAN IP connection access network
  • the IP-CAN bearer setup request includes user information and bearer information, where the user information includes a user ID and an IP address, and the bearer information includes a type of the IP-CAN, a related information of the QoS requested by the user, and the like.
  • Step 602 Notify the IP-CAN bearer establishment.
  • the PCEF sends an IP-CAN bearer setup request to the PCRF through the Gx' interface, informing the PCRF to establish the bearer of the user to the IP-CAN.
  • Step 603 Obtain the subscription information of the user.
  • the PCRF searches for the subscription information of the user in the database according to the user information in the IP-CAN bearer setup request. If the PCRF does not store the subscription information of the user, the PCRF obtains the subscription information of the user from the SPR through the Sp interface.
  • the subscription information of the user includes the service information signed by the user.
  • Step 604 customizing the PCC policy and the DPI policy.
  • the PCRF customizes the DPI policy for the user according to the subscription information of the user; and customizes the PCC policy for the user according to the subscription information of the user and the bearer information in the IP-CAN bearer setup request.
  • Step 605 issuing a PCC policy and a DPI policy.
  • the PCRF sends the PCC policy and the DPI policy to the PCEF through the Gx interface.
  • Step 606 forwarding the DPI policy.
  • the PCEF forwards the received DPI policy to the DPI functional entity.
  • Step 607 returning an IP-CAN bearer setup response.
  • the PCEF After the DPI function entity installs the DPI policy, the PCEF returns an IP-CAN bearer to the wireless network side to establish a response, and informs the user that the IP-CAN bearer is successfully established, and can start using the contracted service.
  • FIG. 7 is a schematic flowchart of a method for sending a DPI policy according to Embodiment 4 of the present invention. As shown in the figure, the process specifically includes:
  • Steps 701 ⁇ 704 are the same as steps 601 ⁇ 604, and are not described here.
  • Step 705 issuing a PCC policy.
  • the PCRF sends the PCC policy to the PCEF through the Gx interface.
  • Step 706 The PCRF sends the DPI policy to the DPI functional entity through the Rx interface.
  • Step 707 returning an IP-CAN bearer setup response.
  • the PCEF After the DPI function entity installs the DPI policy, the PCEF returns an IP-CAN bearer to the wireless network side to establish a response, and informs the user that the IP-CAN bearer is successfully established, and can start using the contracted service.
  • FIG. 8 is a schematic flowchart of a method for sending a DPI policy according to Embodiment 5 of the present invention. As shown in the figure, the process specifically includes:
  • Step 801 802 when detecting that the subscription information of the user changes, notifying the PCRF user that the subscription information changes.
  • the SPR can detect the change of the subscription information of the user, and notify the PCRF that the subscription information of the user has changed by sending a message, and the subscription information of the updated user, where the user
  • the contract information includes the business information signed by the user.
  • step 803 the PCRF returns a response. After receiving the message that the subscription information of the user changes, the PCRF returns a response to the SPR to confirm receipt of the message.
  • Step 804 Save the updated subscription information of the user, and modify the DPI policy.
  • the PCRF saves the updated subscription information of the user in its own database according to the change of the subscription information of the user, deletes the original subscription information of the user, and modifies the corresponding subscription information according to the subscription information of the user. DPI strategy.
  • Modifying the corresponding DPI policy according to the updated subscription information of the user is: If the DPI policy of the user needs to be updated, the PCRF updates the original DPI policy of the user; if the DPI policy of the user needs to be deleted, the PCRF deletes The DPI policy corresponding to the user; if a new DPI policy needs to be created for the user, the PCRF customizes a new DPI policy for the user; if the update of the subscription information of the user does not affect the existing DPI policy, the PCRF maintains the existing DPI policy. constant.
  • Step 805 the DPI policy is issued.
  • the PCRF updates the user's original DPI policy
  • the PCRF sends the updated DPI policy to the DPI function entity through the Rx interface. If the PCRF deletes the DPI policy corresponding to the user, the PCRF passes the Rx'. The interface sends a message to the DPI function entity to delete the user's DPI policy. If the PCRF customizes a new DPI policy for the user, the PCRF sends the newly customized DPI policy to the DPI function entity through the Rx interface. The update of the information does not affect the existing DPI policy, and the PCRF does not issue the DPI policy to the DPI functional entity.
  • Step 806 modify the DPI policy.
  • the DPI function entity modifies the existing DPI policy of the user according to the DPI policy delivered by the PCRF.
  • the PCRF delivers the updated DPI policy
  • the DPI function entity updates the existing DPI policy;
  • the DPI function entity deletes the corresponding DPI policy.
  • the PCRF sends a new customized DPI policy
  • the DPI function entity installs the DPI policy.
  • the DPI function entity detects the data flow of the current service of the user according to the installed DPI policy, and obtains information such as service information and service QoS requirements of the current service data flow of the user; the DPI function entity reports the information to the PCRF, and the PCRF according to the Information implements QoS control of user services.
  • the PCRF simultaneously initiates a process of modifying the PCC policy for the current service, including updating, deleting, and Newly created; the PCRF sends the modified PCC policy to the PCEF.
  • FIG. 9 is a schematic flowchart of a method for sending a sixth embodiment of a DPI policy according to the present invention. As shown in the figure, the process specifically includes:
  • Steps 901 to 904 are the same as steps 801 to 804, and are not described here.
  • Step 905 issuing a DPI policy.
  • step 805. the PCRF sends the modified DPI policy to the PCEF through the Gx' interface, and then performs step 906, and the modified DPI policy is forwarded by the PCEF. Give the DPI functional entity.
  • Step 907 is the same as step 806, and details are not described herein again.
  • FIG. 10 is a schematic flowchart of a method for sending a DPI policy according to Embodiment 7 of the present invention. As shown in the figure, the process specifically includes:
  • Step 101 102 It is detected that all IP-CAN sessions are terminated, and the DPI policy of all the users is notified to be deleted.
  • the PCRF When the PCRF detects that all IP-CAN sessions of the user are terminated, that is, when the user stops using the service and goes offline, the PCRF deletes all DPI policies corresponding to the user stored by the PCRF, and sends a message to notify the DPI function through the Rx' interface. Entity, delete all DPI policies corresponding to the user.
  • Step 103 Perform a delete operation.
  • the DPI function entity deletes all DPI policies corresponding to the user.
  • IP-CAN session corresponds to a PCC policy.
  • PCC policy When the IP-CAN session ends, the corresponding PCC policy is deleted. This is a prior art and will not be described again.
  • FIG. 11 is a schematic flowchart of a method for sending an eighth embodiment of a DPI policy according to the present invention. As shown in the figure, the process specifically includes:
  • Step 111 is the same as step 101 and will not be described again.
  • Step 112 ⁇ 113, notify to delete all DPI policies of the user.
  • the PCRF sends a message to delete the user's DPI policy to the PCEF through the Gx' interface, and the PCEF forwards the message to the DPI function entity.
  • Step 114 Perform a delete operation.
  • the DPI function entity deletes all DPI policies corresponding to the user.
  • the PCRF dynamically customizes the DPI policy according to the subscription information of the user.
  • the PCRF also modifies the DPI policy corresponding to the service information. To meet the needs of users.
  • static DPI policies pre-configured as needed in the PCRF.
  • these static DPI policies can be dynamically sent to the DPI functional entity according to user level and other factors.
  • the user level can be preset, and the user can be determined according to the user information.
  • User level For example, the static DPI policy with the name a has the highest priority for users in the A-level period. Therefore, the PCRF sends the name to the DPI function entity corresponding to the A-level user.
  • pre-set static DPI policy can also be dynamically sent to the DPI functional entity according to the user level and time.
  • the PCRF dynamically customizes the DPI policy according to the subscription information of the user.
  • the PCRF also modifies the DPI policy corresponding to the service information and sends the DPI policy to the DPI functional entity.
  • the DPI function entity detects the user's business data stream according to the issued DPI policy, so that the DPI policy that meets the user's requirements can be dynamically customized, so that the DPI function entity only detects the data content that the user cares about. , can reduce the overhead of the system; for the static DPI strategy pre-configured on the PCRF, it can also be based on User level, time and other factors are dynamically launched.
  • the present invention combines the DPI functional entity in the existing PCC architecture, the information interaction between the PCRF and the AF-free service can also be implemented through the DPI functional entity, and QoS control is performed on these AF-free services according to the interactive information. .

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Abstract

L'invention concerne un procédé et un dispositif pour abaisser la politique d'inspection de paquet en profondeur (DPI). Selon l'invention, il est possible de personnaliser dynamiquement et d'abaisser la politique DPI qui satisfait les exigences de l'utilisateur. Dans le processus d'abaissement de la politique DPI, la fonction de politique et de règles de facturation (PCRF) personnalise dynamiquement la politique DPI selon le profil d'abonnement. Lorsque le profil d'abonnement est modifié, la fonction PCRF modifie la politique DPI selon les informations de service et l'abaisse à la fonction DPI afin de satisfaire les exigences de l'utilisateur. La fonction DPI examine le flux de données de service de l'utilisateur conformément à l'abaissement de la politique DPI. Par conséquent, il est possible de personnaliser dynamiquement la politique DPI qui satisfait les exigences de l'utilisateur et faire que la fonction DPI examine uniquement les données par lesquelles l'utilisateur est concerné, et réduise le surdébit du système. Il est également possible d'abaisser dynamiquement la police DPI préconfigurée dans la fonction PCRF selon le niveau de l'utilisateur, le temps et d'autres facteurs.
PCT/CN2009/074157 2009-02-03 2009-09-23 Procédé et dispositif pour abaisser la politique d'inspection de paquet en profondeur WO2010088821A1 (fr)

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CN200910077915.1 2009-02-03
CN2009100779151A CN101720111B (zh) 2009-02-03 2009-02-03 一种下发深度包检测技术策略的方法和装置

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CN103179047B (zh) * 2011-12-26 2016-08-10 中国移动通信集团广东有限公司 业务的资源调度方法、装置及系统
CN105406977A (zh) * 2014-09-01 2016-03-16 中兴通讯股份有限公司 深度包检测的实现方法及装置
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