WO2010069170A1 - Procédé pour réaliser une régulation de politique et de facturation - Google Patents

Procédé pour réaliser une régulation de politique et de facturation Download PDF

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Publication number
WO2010069170A1
WO2010069170A1 PCT/CN2009/072490 CN2009072490W WO2010069170A1 WO 2010069170 A1 WO2010069170 A1 WO 2010069170A1 CN 2009072490 W CN2009072490 W CN 2009072490W WO 2010069170 A1 WO2010069170 A1 WO 2010069170A1
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WO
WIPO (PCT)
Prior art keywords
traffic
user
pcrf
pcef
policy
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Application number
PCT/CN2009/072490
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English (en)
Chinese (zh)
Inventor
孙闵
彭江宇
金海�
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication of WO2010069170A1 publication Critical patent/WO2010069170A1/fr

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Classifications

    • 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
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control

Definitions

  • the present invention relates to a mobile communication system, and more particularly to a method for implementing policy and charging control.
  • the whole network IP is the future development direction of the telecommunication network.
  • FBC flow-based billing
  • 3GPP 3rd Generation Partnership Project
  • Qos Quality of Service
  • PCC Policy and Charging Control
  • Figure 1 shows the PCC system architecture defined by the 3GPP standards organization, including the following logical entities:
  • PCEF Policy and Charging Enforcement Function
  • the operator can define policy and charging control rules (PCC rules) in the PCEF in advance or request PCRF through the Gx interface. Dynamic PCC rules are sent and received via the Gx interface.
  • PCEF is a logical entity. 3GPP specifies that in the core network of GPRS (General Packet Radio Service) and UMTS (Universal Mobile Telecommunications System), the network element GGSN (Gateway GPRS Support Node, GPRS) Support node gateway) Implement PCEF functions.
  • GPRS General Packet Radio Service
  • UMTS Universal Mobile Telecommunications System
  • PCRF Policy and Charging Rules Function: According to the bearer information provided by the PCEF, the service information provided by the AF (Application Function), and the SPR (Subscription Profile Repository) through the Sp interface.
  • the obtained user's subscription information dynamically generates a PCC rule, and the PCC rule is sent to the PCEF through the Gx interface, and the PCC rule used in the PCEF is dynamically updated according to the event reported by the PCEF.
  • AF Provides service information to the PCRF through the Rx interface to assist the PCRF in completing the dynamic PCC rules. Then the generation and selection.
  • AF is a logical entity. 3GPP specifies that AF can be an application server in GPRS and UMTS core networks. In IMS (IP Multimedia Subsystem) core network, AF is P-CSCF (Proxy Session Service Control Function) or has Rx interface. Other network element entities.
  • IMS IP Multimedia Subsystem
  • P-CSCF Proxy Session Service Control Function
  • OCS Online Charging System
  • OFCS Offline Charging System
  • SPR Subscribescription Profile Repository
  • FIG. 2 shows a method for implementing policy and charging control in the PULL mode in the prior art, including the following steps:
  • a user equipment sends a bearer request message to the PCEF to request to establish a bearer, where the bearer request message carries the bearer information;
  • the PCEF After receiving the bearer request message, the PCEF sends a policy rule request message to the PCRF, requesting the PCRF to send the PCC rule, where the policy rule request message carries the bearer information obtained from the bearer request message;
  • the PCEF requests PCC rules from the PCRF when a specific event occurs, such as user online and offline, user initiated bearer request, user modified bearer, user initiated bearer termination, and PCRF specified event occurrence.
  • the PCRF After receiving the policy rule request message, the PCRF determines, according to the bearer information carried by the user, the contract information of the user acquired from the SPR and the service information of the user acquired from the AF, to determine the PCC rule.
  • the PCRF sends a response message to the PCEF, where the response message carries the determined PCC rule.
  • the PCRF also carries an EVENT_TRIGGER parameter in the response message sent to the PCEF, indicating that the PCEF has a specific event when the bearer network, such as a PLMN (Public Land Mobile Network) change, an APN (Network Access Point) change, Reloading events such as loss and bearer recovery Send a policy rule request message and request to re-issue the PCC rule.
  • PLMN Public Land Mobile Network
  • APN Network Access Point
  • the PCEF After receiving the response message sent by the PCRF, the PCEF installs the PCC rule carried in the response message.
  • the PCEF sends a bearer setup response message that responds to the bearer request message to the user. At this time, the user may perform data transmission on the established bearer channel.
  • the PCEF performs event detection. When an event such as a PLMN change, an APN change, a bearer loss, or a bearer recovery is detected, the PCEF sends a policy rule request message to the PCRF again, and carries the detected event.
  • an event such as a PLMN change, an APN change, a bearer loss, or a bearer recovery is detected
  • the PCEF sends a policy rule request message to the PCRF again, and carries the detected event.
  • the PCRF After receiving the policy rule request message, the PCRF performs a PCC rule decision according to the detected event carried by the message, combined with the acquired subscription information, service information, and bearer information of the user.
  • the PCRF sends the re-determined PCC rule to the PCEF
  • the PCRF determines the PCC rule according to the subscription information, the service information, and the bearer information of the user, and cannot implement the policy and the charging control according to the service traffic of the user.
  • the bandwidth of the QoS policy of the subscription service of the user is A1
  • the service is The traffic is B1.
  • the traffic of the user exceeds B1, the applicable policy and charging rules cannot be regenerated.
  • the technical problem to be solved by the present invention is to provide a method for implementing policy and charging control, which determines PCC rules according to user traffic, and implements control of QOS policies and charging policies.
  • a method for implementing policy and charging control includes: After the policy and charging rule function PCRF receives the policy rule request message sent by the policy and charging execution function PCEF, the obtained user will be obtained. The service traffic is compared with the accumulated usage traffic. According to the comparison result, the policy and charging control are determined according to the locally configured or acquired traffic control policy.
  • the method for obtaining the user's service traffic and cumulative usage traffic by the PCRF is: After receiving the bearer request message sent by the user, the PCEF interacts with the online charging system OCS, obtains the user's service traffic and accumulated usage traffic from the OCS, and sends the service traffic and the accumulated usage traffic to the PCRF.
  • the method for the PCRF to obtain the user's service traffic and the cumulative usage traffic is as follows: The PCRF interacts with the OCS to obtain the service traffic and the cumulative usage traffic of the user. Further, the PCRF obtains the user's service traffic and the cumulative usage traffic by: the user's service traffic is contracted in the user subscription device, and the operator's operation and maintenance support system or the OCS notifies the PCRF.
  • the method for obtaining the cumulative usage flow of the user by the PCRF is:
  • the usage traffic of the user is monitored and reported to the PCRF.
  • the PCRF accumulates the usage traffic of the user reported by the PCEF to obtain the cumulative usage traffic of the user.
  • the obtained flow control rule is configured in the user subscription device, and is obtained by the PCRF from the subscription device.
  • the method further includes:
  • the PCRF sends the PCC rule to the PCEF by sending a response message to the policy request message to the PCEF.
  • the response message also carries the event-trigger parameter, indicating that the PCEF sends the PCRF to the PCRF when the usage flow of the user's single session reaches a specified value. Resend the policy rule request message, requesting to re-determine and deliver the PCC rule.
  • the PCEF receives the service data of the user, the service data is monitored, and when the usage flow of the single session of the user reaches a specified value, the policy rule request message carrying the usage flow of the single session is sent to the PCRF again;
  • the PCRF After receiving the policy rule request message carrying the traffic of a single session, the PCRF accumulates the usage traffic of the single session into the accumulated usage traffic of the user, determines the PCC rule, and sends the PCC rule to the PCEF.
  • the PCEF sends the service traffic and the cumulative usage traffic to the PCRF through the online notification message or the policy rule request message, and when the user goes online and does not initiate the service, the PCEF reports the service traffic and the cumulative usage traffic to the PCRF through the online notification message; When the user goes online and initiates the service, the PCEF reports the service traffic and the cumulative usage traffic to the PCRF through the policy rule request message. Further, the PCRF requests the 0CS to deliver the service traffic and the accumulated usage traffic by sending a credit authorization request message to the 0CS.
  • the OCS After receiving the credit authorization request message, the OCS delivers the user's service traffic and accumulated usage traffic to the PCRF.
  • the PCRF of the present invention performs the PCC rule decision according to the service traffic, the cumulative usage flow, and the flow control policy of the user, and delivers the PCC rule to the PCEF for execution.
  • the PCEF reports to the PCRF, and the PCF rules are re-executed by the PCRF and sent to the PCEF for execution; thereby achieving the policy and charging control according to the user's service traffic.
  • FIG. 1 is a system diagram of a PCC system architecture proposed by the 3GPP in the prior art
  • Embodiment 3 is a flowchart of implementing policy and charging control according to Embodiment 1 of the present invention.
  • FIG. 5 is a flowchart of implementing policy and charging control according to Embodiment 3 of the present invention.
  • the PCRF performs the PCC rule decision according to the user's service traffic, the cumulative usage traffic, and the traffic control policy.
  • the PCRF obtains the user service traffic, the cumulative usage traffic, and the traffic control respectively by the following methods. Strategy.
  • the PCRF interacts with the OCS to send a credit authorization request message to the OCS, and the OCS returns the user's service traffic.
  • PCRF and OCS use the DIAMETER protocol to interact.
  • the PCEF interacts with the OCS to obtain the service traffic of the user, and sends the PCRF to the message through the user online notification message or the policy rule request message. If the service is not initiated, the PCEF reports the service traffic to the PCRF through the online notification message. The line sends the service traffic to the PCRF through the policy rule request message.
  • the user's cumulative usage traffic can be obtained in the following three ways:
  • the OCS After the PCRF sends a credit authorization request message to the OCS, the OCS returns the used traffic to the PCRF while returning the user's traffic to the PCRF.
  • the PCEF interacts with the OCS to obtain the cumulative usage flow of the user, and reports the message to the PCRF through the user online notification message or the policy rule request message.
  • the PCEF monitors the user's usage traffic and reports the user's usage traffic to the PCRF.
  • the PCRF accumulates the user's usage traffic to obtain the cumulative usage traffic of the user.
  • a traffic control policy is a method for controlling a Qos policy and an accounting policy based on service traffic and cumulative traffic usage. It can be configured by the carrier.
  • the traffic control policy can be configured in the user's subscription device when the user is subscribed. When the user goes online, the PCRF obtains the traffic control policy from the user's subscription device.
  • the traffic control policy can also be directly configured by the operator in the local PCRF.
  • the bandwidth of the user X is reduced to half of the subscription bandwidth; when the cumulative usage traffic C2 reaches two-thirds of the traffic flow C1, User X's bandwidth is reduced to one-third of the contracted bandwidth.
  • user X is type A and service B is contracted.
  • the traffic control policy of the user is pre-configured in the PCRF.
  • the service traffic of the user is pre-configured in the OCS, and the cumulative usage traffic of the user is calculated by the OCS.
  • the service traffic subscribed by user X to the B service is C1, and the accumulated traffic is C2.
  • FIG. 3 is a schematic diagram of a method for implementing policy and charging control according to Embodiment 1 of the present invention.
  • the PCRF obtains the service traffic and the accumulated usage traffic of the user from the OCS, and includes the following steps:
  • the user X sends a bearer request message to the PCEF to request to establish a service bearer, where the bearer request message carries the bearer information.
  • the PCEF After receiving the bearer request message, the PCEF sends a policy rule request message requesting to the PCRF to send the PCC rule, where the policy rule request message carries the bearer information in the bearer request message;
  • the PCRF After receiving the policy rule request message, the PCRF learns that the user is online, and sends a subscription information request message to the SPR, requesting the SPR to deliver the subscription information of the user X.
  • the SPR After receiving the subscription information request message, the SPR sends the subscription information of the user X to the PCRF.
  • the PCRF receives the subscription information returned by the SPR to obtain the user X contracted service 8.
  • the PCRF sends a credit authorization request message to the OCS, requesting the OCS to deliver the service traffic and the cumulative usage traffic of the user.
  • the OCS After receiving the credit authorization request message, the OCS delivers the service traffic and the cumulative usage traffic of the user X to the PCRF.
  • User X's service traffic for service B is C1, and the current cumulative usage traffic is C2.
  • the PCRF After receiving the service traffic and the cumulative usage traffic of the user, the PCRF requests the bearer information in the message according to the policy rule, the subscription information of the user, the service traffic of the user, the cumulative usage traffic, the traffic control policy, and the user acquired from the AF.
  • the cumulative usage traffic C2 is compared with the traffic flow C1.
  • the PCRF determines the PCC rule for maintaining the existing bandwidth; when the cumulative usage traffic C2 reaches the service
  • the PCRF determines the bandwidth after halving as the PCC rule; when the cumulative usage traffic C2 reaches two-thirds of the traffic C1, the PCRF determines one-third of the contracted bandwidth as the PCC rule.
  • the PCRF sends a response message to the PCEF, where the response message carries the determined PCC rule.
  • the PCRF also carries the EVENT_TRIGGER parameter in the response message sent to the PCEF.
  • the PCEF resends the policy rule request message when the usage flow of the user's single session reaches a specified value, and requests the PCC rule to be re-issued to control the excessive occupation of resources by the user.
  • the specified value is configured by the operator. When the usage traffic of the user's single session reaches the specified value, the user needs to perform resource control.
  • the PCEF After receiving the response message sent by the PCRF, the PCEF installs the PCC rule carried in the response message.
  • the PCEF sends a bearer setup response message in response to the bearer request message to the user. At this time, the user may perform data transmission on the established bearer channel.
  • the PCRF After receiving the policy rule request message, the PCRF accumulates the used traffic of the user X single session to the cumulative usage traffic of the user, and combines the bearer information, the subscription information, the service traffic, the traffic control policy, and the service information of the user. Make decisions and redefine PCC rules;
  • FIG. 4 is a schematic diagram of a method for implementing policy and charging control according to Embodiment 2 of the present invention.
  • the PCEF when a user goes online, the PCEF obtains the service traffic and the cumulative usage traffic of the user from the OCS, and reports the policy policy request message to the PCRF, including The following steps:
  • the user X sends a bearer request message to the PCEF, and requests to establish a service bearer, where the bearer request message carries the bearer information.
  • the PCEF After receiving the bearer request message, the PCEF sends a traffic request message to the OCS, requesting the OCS to deliver the service traffic and the cumulative usage traffic of the user. 403: After receiving the traffic request message, the OCS sends the service traffic and the cumulative usage traffic of the user to the PCEF.
  • User X's traffic for service B is C1 and the cumulative traffic is C2.
  • the PCEF After receiving the service traffic and the cumulative usage traffic of the user X, the PCEF sends a policy rule request message to the PCRF to send a PCC rule, where the policy rule request message carries the service traffic and the cumulative usage traffic of the user X, and the bearer.
  • the bearer information contained in the request message After receiving the service traffic and the cumulative usage traffic of the user X, the PCEF sends a policy rule request message to the PCRF to send a PCC rule, where the policy rule request message carries the service traffic and the cumulative usage traffic of the user X, and the bearer.
  • the bearer information contained in the request message
  • the PCRF After receiving the policy rule request message, the PCRF learns that the user is online, sends a subscription information request message to the SPR, and requests the SPR to deliver the subscription information of the user X.
  • the SPR After receiving the subscription information request message, the SPR sends the subscription information of the user X to the PCRF.
  • the PCRF receives the subscription information returned by the SPR and learns the user X subscription service 8.
  • the PCRF determines, according to the bearer information in the policy rule request message, the subscription information of the user, the service traffic of the user, the cumulative usage traffic, the traffic control policy, and the service information of the user obtained from the AF, to determine the PCC rule.
  • the PCRF sends a response message to the PCEF, where the response message carries the determined PCC rule.
  • the PCRF also carries the EVENT_TRIGGER parameter in the response message sent to the PCEF, instructing the PCEF to resend the policy rule request message when the traffic of the user's single session reaches a specified value, requesting to re-issue the PCC rule to control the user to the resource. Excessive use.
  • the PCEF sends a bearer setup response message to the user in response to the bearer request message. At this time, the user may perform data transmission on the established bearer channel.
  • the PCRF After receiving the policy rule request message, the PCRF will carry the user X in a single session.
  • the traffic is added to the cumulative usage traffic of the user, and the user's bearer information, subscription information, service traffic, traffic control policy, and service information are used to make a decision, and the PCC rule is re-determined;
  • FIG. 5 is a schematic diagram of a method for implementing policy and charging control according to Embodiment 3 of the present invention.
  • the user when a user subscribes to service traffic, the user is notified of the service traffic of the user, including the following steps: 501: On the subscription device
  • the OCS or the operator's operation and maintenance support system notifies the PCRF of the service traffic of the user X, and the PCRF stores or updates the service traffic subscribed by the user X;
  • the OCS or the operation and maintenance support system notifies the PCRF of the service traffic, which can be actively selected by the operator.
  • the user X sends a bearer request message to the PCEF to request to establish a service bearer, where the bearer request message carries the bearer information.
  • the PCEF After receiving the bearer request message, the PCEF sends a policy rule request message requesting to the PCRF to send a PCC rule, where the policy rule request message carries the bearer information in the bearer request message;
  • the PCRF After receiving the policy rule request message, the PCRF learns that the user is online, and sends a subscription information request message to the SPR, requesting the SPR to deliver the subscription information of the user X.
  • the SPR After receiving the subscription information request message, the SPR sends the subscription information of the user X to the PCRF.
  • the PCRF receives the subscription information returned by the SPR and learns that the user X subscribes to the service 8.
  • the PCRF determines, according to the bearer information in the policy rule request message, the subscription information of the user, the service traffic of the user, the cumulative usage traffic, the traffic control policy, and the service information of the user obtained from the AF, to determine the PCC rule.
  • the PCRF sends a response message to the PCEF, where the response message carries the determined PCC. rule;
  • the PCRF also carries the EVENT_TRIGGER parameter in the response message sent to the PCEF, indicating that the PCEF resends the policy rule request message to re-issue the PCC rule when the usage flow of the user's single session reaches a specified value.
  • the PCEF After receiving the response message sent by the PCRF, the PCEF installs the PCC rule carried in the response message.
  • the PCEF sends a bearer setup response message to the user in response to the bearer request message. At this time, the user may perform data transmission on the established bearer channel.
  • the user After receiving the bearer setup response message, the user sends the service data to the PCEF.
  • the PCRF After receiving the policy rule request message, the PCRF adds the used traffic of the user X single session to the accumulated usage traffic of the user, and combines the bearer information, the subscription information, the service traffic, the traffic control policy, and the service information of the user. Make decisions and redefine PCC rules;

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Meter Arrangements (AREA)

Abstract

Procédé pour réaliser une régulation de politique et de facturation (Policy and Charging Control, PCC), comportant les étapes suivantes : la fonction de règle de politique et de facturation (Policy and Charging Rules Function, PCRF) reçoit un message de demande de règle de politique et de facturation envoyé par la fonction d'application de politique et de facturation (Policy and Charging Enforcement Function, PCEF), puis compare le débit de service acquis d'un utilisateur à un débit cumulatif utilisé et, en fonction du résultat de la comparaison, élabore une règle de PCC en termes de politique de régulation locale du débit configuré ou acquis. La PCRF de la présente invention prend une décision concernant une règle de PCC en fonction du débit de service acquis de l'utilisateur, du débit cumulatif utilisé et de la politique de régulation du débit, et envoie une règle de PCC à la PCEF pour exécution. Par ailleurs, lorsque le débit de service de l'utilisateur atteint un seuil, la PCEF le signale à la PCRF, la PCRF prend à nouveau une décision concernant une règle de PCC et l'envoie à la PCEF pour exécution, remplissant ainsi la fonction de régulation de politique et de facturation en fonction du débit de service de l'utilisateur.
PCT/CN2009/072490 2008-12-18 2009-06-26 Procédé pour réaliser une régulation de politique et de facturation WO2010069170A1 (fr)

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CN200810185849.5 2008-12-18
CN200810185849.5A CN101754161B (zh) 2008-12-18 2008-12-18 一种实现策略和计费控制的方法

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