WO2011009391A1 - 策略制定方法、策略和计费规则功能及分组数据服务节点 - Google Patents

策略制定方法、策略和计费规则功能及分组数据服务节点 Download PDF

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Publication number
WO2011009391A1
WO2011009391A1 PCT/CN2010/075259 CN2010075259W WO2011009391A1 WO 2011009391 A1 WO2011009391 A1 WO 2011009391A1 CN 2010075259 W CN2010075259 W CN 2010075259W WO 2011009391 A1 WO2011009391 A1 WO 2011009391A1
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WIPO (PCT)
Prior art keywords
policy
protocol
packet data
session
function
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PCT/CN2010/075259
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English (en)
French (fr)
Inventor
吴锦花
芮通
毛玉欣
施晓峰
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中兴通讯股份有限公司
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Publication of WO2011009391A1 publication Critical patent/WO2011009391A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08Configuration management of networks or network elements
    • H04L41/0894Policy-based network configuration management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/66Policy and charging system
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24Accounting or billing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08User group management

Definitions

  • the present invention relates to the field of communications, and in particular to a policy formulation method, a policy and a charging rule function, and a packet data serving node.
  • BACKGROUND OF THE INVENTION The 3rd Generation Partnership Project (3GPP) defines a policy and charging control architecture (PCC) of 40 pairs of mobile networks, and FIG. 1 is a related art according to the related art.
  • QoS Quality of Service
  • the PCRF is divided into a home PCRF (home PCRF, abbreviated as h-PCRF) and a visit PCRF (a visitor PCRF, abbreviated as v-PCRF;), wherein the h-PCRF is located in the home network, and the v-PCRF is located in the roaming network.
  • the Policy and Charging Enforcement Function (PCEF) is used to execute the PCC rules delivered by the PCRF or preconfigured on the PCEF.
  • the Internet Protocol (IP Proxy) is transmitted on the network. The text is detected, the service data flow to which the IP 4 ⁇ is attached is identified, and QoS and charging control are provided for the service data flow.
  • the Bearer Binding and Event Report Function (BBERF) is used to detect IP packets transmitted on the network and map IP packets to corresponding bearer channels according to rules. In addition, the BBERF also performs the reporting of the event related to the bearer. For example, when the bearer is lost or the access network is switched, the corresponding event needs to be sent to the PCRF, and the PCRF is requested to make a corresponding decision.
  • the Subscription Profile Repository SPR
  • SPR is used to store the service information subscribed by the user, and provides the necessary user subscription information for the PCRF to formulate the PCC rule. Online Charging System (OCS) and Offline Charging System (OFCS) are used for online and offline charging, respectively.
  • the PCRF interacts with the PCEF, BBERF, SPR, and Application Function (AF) through the Gx, Gxa, Sp, and Rx interfaces.
  • the PCEF interacts with the OCS and OFCS through the Gy and Gz interfaces respectively.
  • the principle of the PCC architecture implementing policy control on the services transmitted on the network is as follows: First, the PCRF needs to establish a gateway control session and a network protocol connection access network between the BBERF and the PCEF before the user officially conducts specific services. Access Network, referred to as IP-CAN) session, and establish a gateway control session and IP-CAN session association to ensure consistency of control policies on BBERF and PCEF for specific service data flows. Thereafter, during the service development process, the PCRF formulates a corresponding policy for the service data flow included in the service according to the application layer negotiation service information, the user subscription information, the operator policy, and the like, and includes the information of the quintuple information and the authorized bandwidth of the identifier flow. .
  • IP-CAN Access Network
  • the policy is delivered to the BBERF in the form of a QoS rule and sent to the PCEF in the form of a PCC rule.
  • the quintuple information in the rule is matched with the IP 4 ⁇ message, and the matched IP 4 ⁇ text is transmitted using the corresponding payload, and the corresponding charging is performed.
  • the service information is changed, for example, the service data flow is terminated, and the network resources occupied by the service can be released in real time through the PCC to achieve dynamic QoS control for the service.
  • the 3rd Generation Partnership Project 2 (3GPP2, for short) introduces the PCC as a resource control mechanism for the Code Division Multiple Access 2000 (CDMA2000) network.
  • 2 is a schematic diagram of a PCC architecture introduced by a CDMA2000 network according to the related art. As shown in FIG. 2, each entity function is described as follows: Packet Data Serving Node (PDSN) is a function network of a CDMA2000 network. Element, to the access device, for example, the Packet Control Function (PCF) open standard A 10/A 11 interface, used to establish A10 connection for data message transmission and QoS control, at the same time, PDSN is still The wireless access network and the gateway of the external packet IP network route, control and forward data packets of the terminal and the external IP network.
  • PCF Packet Control Function
  • the CDMA2000 network uses the Simple IP protocol.
  • the address of the terminal changes as the attached network changes. That is, if a network switch occurs in the terminal, the new network must assign an IP address to it. The terminal needs to use the newly assigned IP address to conduct business. Therefore, if a terminal that is doing business roams, it will interrupt the ongoing business.
  • the Simple IP ten-party mechanism, the PCEF function is placed in the PDSN. No BBERF function is required.
  • the CDMA2000 network uses the MIP protocol. There are two protocol-related functional network element home agents (HAs) and foreign agents (FAs).
  • HAs protocol-related functional network element home agents
  • FAs foreign agents
  • the main function of HA is as the anchor point when the terminal moves under the MIP network, and the home address (Home Address, HoA for short) is assigned to the terminal.
  • the Home Address, HoA for short is assigned to the terminal.
  • the HoA allocated by the HA to the terminal is always unchanged, so that when the terminal moves, the communication peer can always ensure that the communication peer allocates the terminal to the HoA of the terminal through the HA.
  • the FA is usually located in the local network where the terminal is currently located. Its main function is to provide the terminal with a local IP address (Care of Address, CoA for short). When the terminal roams or the access network switches, the FA of the current network of the terminal must provide the CoA for the terminal. If the terminal moves to access the network switch, the CoA also needs to be changed.
  • the function of the FA can be placed in the PDSN. There are two modes for using the MIP protocol: FA-CoA mode and CCoA mode:
  • FIG. 3 is a schematic diagram of the PCC architecture under the MIP protocol FA-CoA mode or the PMIP protocol according to the related art.
  • the MIP tunnel is located between the FA and the HA.
  • a reverse tunnel is also defined, that is, both the forward and reverse flows are routed through the MIP tunnel.
  • the IP 4 message sent by the terminal is routed to the HA through the MIP tunnel in the same way, and then routed to the external network.
  • the BBERF function is located in the FA/PDSN and the PCEF function is located in the HA.
  • FIG. 4 is a schematic diagram of the PCC architecture in the CCoA mode according to the related art. As shown in FIG. 4, the MIP tunnel is located between the terminal and the HA.
  • the FA does not participate in the tunnel establishment process. However, since there is still a connection between the terminal and the FA, that is, the report When the MIP tunnel reaches the FA, the route needs to be transmitted through the connection. Therefore, the BBERF function needs to be placed on the FA/PDSN.
  • the HA performs the PCEF function.
  • the CDMA2000 network uses the PMIP protocol. There are two protocol-related functional network elements, Localized Mobility Anchor (LMA) and Mobile Access Gateway (MAG).
  • LMA Localized Mobility Anchor
  • MAG Mobile Access Gateway
  • the LMA is the home agent of the terminal in the PMIP domain, which is equivalent to the function of HA in the MIP protocol. It is used to anchor the terminal to the home network and assign a constant IP address to the terminal.
  • the MAG is a function in the access route. Used to manage mobility-related signaling when a terminal attaches to an access network. The movement of the terminal is tracked and is the anchor point of the local movement of the terminal. The function of the MAG can be placed in the PDSN.
  • the PMIP tunnel under the PMIP protocol is established between the LMA and the MAG, as shown in Figure 3. Packets exchanged between the terminal and the external network are routed through the PMIP tunnel.
  • the difference from the MIP protocol is that, under the PMIP protocol, the terminal does not perceive the mobile, that is, the network does not inform the terminal of the local IP address, and the terminal only uses the HoA for the service.
  • the MAG/PDSN Under the PMIP protocol, the MAG/PDSN performs the BBERF function, and the LMA performs the PCEF function.
  • BBERF is mainly used for QoS control of traffic data transmission using network resources. In addition to QoS control of service data flow, PCEF also needs to perform charging control.
  • the PCRF interacts with the PCEF through the QoS and charging policies through the Gx session, and performs the QoS policy interaction with the BBERF through the Gxx session.
  • the PCC architecture in the CDMA2000 network shown in FIG. 2 if the CDMA2000 uses the Simple IP protocol, the PDSN performs the PCEF function, and charging control is required. If the MIP or PMIP protocol is used, the PDSN performs the BBERF function and does not need to perform charging control.
  • the PDSN needs to choose whether to exercise the charging function under the PCC according to the usage status of the protocol; the PCRF also needs to decide whether to use the Gx session or the Gxx session and the PDSN according to the network usage protocol status. Interaction. Although the terminal needs to be attached to the network before carrying out specific services, the BBERF or PCEF needs to establish a Gxx session or a Gx session with the PCRF.
  • the PCRF can distinguish between the Gxx session and the Gx session according to the session identifier, so that it can distinguish whether to interact with the BBERF or the PCEF, and it is possible to perform the PDSN.
  • BBERF it is possible to perform the PCEF function.
  • the PCRF can further sense whether the PDSN performs the BBERF function or the PCEF function.
  • the terminal needs to establish a Gxx session first in the attaching process, and also needs to establish a Gx session, and needs to establish an association of the Gxx session.
  • the PCRF receives the Gx session without receiving the Gxx session, it may cause the PCRF to judge that an error occurs in the session establishment process. Therefore, if the PDSN performs both the BBERF function and the PCEF function, only the Diameter session identifier may not completely solve the problem that the PCRF distinguishes the PDSN execution function. In addition, for the terminal-initiated service compatible with the Simple IP and MIP protocols, it is necessary to solve the above problem to implement the correct policy control on the PDSN. The PCRF also needs to solve the problem of correctly distinguishing the PDSN from performing PCEF or BBERF.
  • the present invention has been made in view of the problems in the related art that the Diameter session identifier may not correctly distinguish whether the PDSN performs the PCEF function or the BBERF function, and the PDSN cannot be differentiated. Therefore, the main object of the present invention is to provide an improvement.
  • the strategy is developed to address at least one of the above issues.
  • a strategy formulation method is provided.
  • the policy making method according to the present invention includes: the policy and charging rule function receives protocol distinguishing information from the packet data serving node; the policy and charging rule function differentiates the information according to the protocol formulating policy, and sends the policy to the packet data processing node.
  • a strategy formulation method includes: the packet data server sends protocol differentiation information to the policy and charging rule function, so that the policy and charging rule function differentiates the information according to the protocol; the packet data service node receives the policy from the policy And the policy of the charging rule function, and determine the function to be executed according to the policy.
  • a policy and charging rule function is provided.
  • the policy and charging rule function includes: a receiving module, configured to receive from a packet The protocol distinguishing information of the data service node, where the protocol distinguishing information is used to indicate the type of the protocol, the policy module is configured to differentiate the information according to the protocol, and the sending module is configured to send the policy to the packet data processing node.
  • a packet data serving node is also provided.
  • the packet data server includes: a second sending module, configured to send protocol distinguishing information to the policy and charging rule function, so that the policy and charging rule function formulates a policy according to the protocol, wherein the protocol distinguishes
  • the information is used to indicate the type of the protocol used by the terminal to connect to the packet data service node
  • the second receiving module is configured to receive the policy from the policy and the charging rule function
  • the determining module is configured to determine the function performed by the policy.
  • the PCRF receives and formulates a policy according to the protocol information from the PDSN, and then sends the formulated policy to the PDSN, which solves the problem that the PCRF may not correctly distinguish the PDSN from performing the PCEF function or the BBERF function according to the Diameter session identifier in the related art.
  • FIG. 1 is a schematic diagram of a 3GPP PCC R8 system architecture according to the related art
  • FIG. 2 is a schematic diagram of a PCC architecture introduced by a CDMA2000 network according to the related art
  • FIG. 3 is a MIP protocol FA-CoA according to the related art. Schematic diagram of the PCC architecture in the mode or the PMIP protocol;
  • FIG. 1 is a schematic diagram of a 3GPP PCC R8 system architecture according to the related art
  • FIG. 2 is a schematic diagram of a PCC architecture introduced by a CDMA2000 network according to the related art
  • FIG. 3 is a MIP protocol FA-CoA according to the related art. Schematic diagram of the PCC architecture in the mode or the PMIP protocol
  • FIG. 1 is a schematic diagram of a 3GPP PCC R8 system architecture according to the related art
  • FIG. 2 is a schematic diagram of a PCC architecture introduced by a CDMA2000 network according to the related art
  • FIG. 3 is a MIP protocol FA-
  • FIG. 4 is a schematic diagram of the PCC architecture in the CCoA mode of the MIP protocol according to the related art
  • FIG. 5 is a flowchart of the policy formulation method in the embodiment of the present invention
  • FIG. 7 is a flowchart of a method according to Embodiment 3 of the embodiment of the present invention
  • 8 is a flowchart of a method according to Embodiment 4 of the embodiment of the present invention
  • FIG. 9 is a structural block diagram of a PCRF according to an embodiment of the present invention
  • FIG. 10 is a structure of a PDSN according to an embodiment of the present invention; block diagram.
  • the protocol differentiation information can be obtained from the PDSN during the session establishment or session modification phase.
  • the session may be a gateway control session or an IP-CAN session; the protocol differentiation information may be a protocol identification identifier used to identify the protocol used by the bearer network.
  • the protocol can be Simple IP, MIP, PMIP, and the like. Then, according to the protocol, the information is differentiated, and the PCRF makes policy decisions and issues. If the protocol distinguishes the information, and the PCRF distinguishes the information to know that the Simple IP protocol is used, the PCRF formulates the QoS and charging policies, and sends them to the PDSN through the Gx session.
  • the PDSN performs the PCEF function.
  • FIG. 5 is a flowchart of a method for formulating a policy according to an embodiment of the present invention.
  • the method includes the following steps S102 to S104: Step S102, the PCRF receives protocol distinguishing information from the PDSN.
  • the protocol distinguishing information is used to indicate the type of the protocol, and the protocol distinguishing information may also indicate other information of the protocol, and the purpose of the embodiment may be achieved as long as the PCRF can make a policy according to the information.
  • Step S104 The PCRF differentiates the information according to the protocol, and sends the policy to the PDSN.
  • the PCRF can determine the session used to transmit the protocol differentiation information according to the protocol differentiation information, and send the formulated policy through the session.
  • the PDSN sends protocol differentiation information to the PCRF, where the protocol is a protocol used by the terminal to connect with the PDSN; after step S104, the PDSN receives the policy from the PCRF, and determines the performed function according to the policy. .
  • the functions performed by the PDSN determination are described below in two aspects.
  • the PCRF formulates and sends a monthly service quality and charging policy to the PDSN through the Gx. After receiving the QoS policy and the charging policy, the PDSN performs the PCEF function.
  • Aspect 2 If the protocol indicated by the protocol distinguishing information is MIP or PMIP protocol, the PCRF formulates and sends a QoS policy to the PDSN through the Gxx session, and after receiving the QoS policy, the PDSN performs the BBERF function.
  • the PCRF receives protocol distinguishing information from the PDSN in a session establishment or session modification phase, where the session may include at least one of the following: a gateway control session, a network protocol connection access network session.
  • Embodiment 2 when a session is created, when the PCRF receives a session creation request, and needs to initiate a session creation process, the PCRF obtains the underlying protocol of the session from the request message, and then formulates and Send PCC rules to PDSN (PCEF) for PCEF installation and execution.
  • FIG. 6 is a flowchart of a method according to Embodiment 2 of the embodiment of the present invention. As shown in FIG. 6, the process includes the following steps: Step 601. The PDSN (PCEF) receives the request to create an IP-CAN, and establishes an IP address. -CAN session creation indication message. Step 602.
  • the PDSN (PCEF) initiates an IP-CAN session creation request to the PCRF through the Diameter CCR message, and carries protocol differentiation information in the message. In the case of roaming, the request message needs to be sent to the h-PCRF via the v-PCRF. Step 603.
  • the PCRF receives the request message, saves the carried information, and determines the Simple IP protocol according to the carried protocol differentiation information. Step 604. If the PCRF does not have user subscription information related to the user at this time, it is obtained from the SPR. Step 605.
  • the PCRF generates a PCC rule for the IP-CAN session to be established according to the user subscription information acquired above and the operator policy. Step-step 606.
  • the PCRF returns an IP-CAN session creation response to the PDSN (PCEF) through the Diameter CCA message, providing a PCC rule. If it is roaming, the response message is sent by the h-PCRF to the PDSN (PCEF) through the v-PCRF. Step 607.
  • the PDSN (PCEF) executes the policy and installs the received PCC rules. Step 608.
  • PDSN (PCEF) returns to create the IP -CAN carries the response.
  • Embodiment 3 In this embodiment, when the session is created, when the PCRF receives a session creation request and needs to initiate a session creation process, the PCRF obtains the protocol distinguishing information of the session from the request message.
  • the PCC rules are sent to the HA/LMA to the PCEF.
  • the QoS rules are delivered to the PDSN/FA/MAG to the BBERF, and a consistent control strategy is implemented on the BBERF and the PCEF.
  • the process includes the following steps: Step 4: 701.
  • the PDSN/FA/MAG (BBERF) detects that the UE initiates an IP-CAN session establishment.
  • the request establishes a gateway control session between the PDSN/FA (BBERF) and the PCRF.
  • the user identifier, the PDN identifier, the IP-CAN access type, and the protocol differentiation information are sent to the PCRF.
  • HA/LMA PCEF
  • PCEF received the IP-CAN session establishment Step 703.
  • HA/LMA PCEF
  • the PCRF receives the message from the HA (PCEF).
  • Step 705. User ID, PDN identifier sent according to HA/LMA (PCEF), and gateway control session establishment phase PDSN/FA/MAG (BBERF) The user ID and PDN identifier sent, and the PCRF completes the association between the gateway control session and the IP-CAN session.
  • Step 706. If the PCRF lacks the user subscription information related to the user, it is obtained from the SPR. Step 707. Based on the above information and the operator policy, the PCRF makes policy decisions and selects or generates PCC rules. Step 708.
  • the PCRF provides PCC rules to the HA/LMA (PCEF) through the Diameter CCA message.
  • the PCC rule requires the h-PCRF to be provided to the PCEF via the v-PCRF.
  • the PCRF also needs to generate a QoS rule according to the PCC rule, and the latest QoS rule system is sent to the PDSN/FA/MAG (BBERF) through the gateway control and the QoS rule provider.
  • HA/LMA PCEF
  • Step 711. HA/LMA (PCEF) returns a response to the session establishment request.
  • the gateway control session is created when the BBERF is relocated.
  • FIG. 8 is a flowchart of a method according to Embodiment 4 of the present invention. As shown in FIG. 8, the process includes the following steps: Step 801. A PDSN/FA/MAG (BBERF) receives a gateway control session creation indication.
  • BBERF BBERF
  • Step 802. The PDSN/FA/MAG (BBERF) sends a gateway control session creation request to the PCRF through the Diameter CCR, and sends the user identifier, the PDN identifier, the IP-CAN access type, and the protocol differentiation information to the PCRF. If it is a roaming situation, the request message is sent to the h-PCRF through the v-PCRF.
  • PCRF is connected to the message from PDSN/FA/MAG (BBERF). Acquiring and saving the carried information, and then determining the MIP/PMIP protocol according to the protocol differentiation information carried. Step 804.
  • the PCRF completes the association between the gateway control session and the IP-CAN session according to the user identifier of the current session, the PDN identifier, and the user identifier and PDN identifier sent by the PDSN/FA/MAG (BBERF) in the gateway control session establishment request.
  • Step 805. If the PCRF lacks the user subscription information related to the user, it is obtained from the SPR.
  • Step 806 Based on the above information and the operator policy, the PCRF makes policy decisions and selects or generates PCC rules.
  • the PCRF provides the PCC rule to the BBERF through the Diameter CCA message. In the case of roaming, the PCC rule requires the h-PCRF to be provided to the BBERF via the v-PCRF. Step 4: 808.
  • the Target BBERF sends an Ack message to the PCRF to inform the PCRF of the QoS rule activation result, indicating whether the resource request is successfully allocated.
  • Step 809 According to the activation scenario of the above QoS rule, if the PCC rule previously provided to the PCEF needs to be updated, the PCRF waits for the PCEF to initiate an IP-CAN session modification process to update the PCEF. The PCEF will bring the protocol distinguishing identifier to the PCRF in the request message. Step 810. At this time, the PCRF also needs to generate a QoS rule according to the PCC rule, and the latest QoS rule system is given to the Target BBERF through the gateway control and QoS rule provider, and the relevant QoS rule in the Source BBERF is removed.
  • FIG. 9 is a structural block diagram of a PCRF according to an embodiment of the present invention.
  • the PCRF includes: a receiving module 92, a policy module 94, and a sending module 96.
  • the receiving module 92 is configured to receive protocol distinguishing information from the PDSN, where the protocol distinguishing information is used to indicate the type of the protocol, and the policy module 94 is connected to the receiving module 92, and is configured to divide the information according to the protocol to formulate a policy; the sending module 96
  • a PDSN is provided in the embodiment of the present invention.
  • the second transmitting module 12, the second receiving module 14, and the determining module 16, the structure will be described in detail below.
  • the second sending module 12 is configured to send protocol distinguishing information to the policy and charging rule function, so that the policy and charging rule function distinguishes the information according to the protocol, where the protocol distinguishing information is used to indicate the protocol used by the terminal to connect with the PDSN.
  • the second receiving module 14 is connected to the second sending module 12 for receiving the policy from the policy and charging rule function; the determining module 16 is connected to the second receiving module 14 for determining the executed function according to the policy.
  • the function of the determination module 16 will be described below in two aspects. On the first aspect, if the protocol indicated by the protocol distinguishing information is Simple IP, the PCRF formulates and sends a monthly service quality and charging policy to the PDSN through the Gx.
  • the PDSN After receiving the QoS policy and the charging policy, the PDSN performs the PCEF function.
  • Aspect 2 If the protocol indicated by the protocol distinguishing information is MIP or PMIP protocol, the PCRF formulates and sends a QoS policy to the PDSN through the Gxx session, and after receiving the QoS policy, the PDSN performs the BBERF function.
  • the above embodiments of the present invention solve the problem that the PCRF differentiates the control policy according to the CDMA2000 network usage protocol, and implements the correct policy and charging control for the network.
  • the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

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  • Mobile Radio Communication Systems (AREA)

Description

策略制定方法、 策略和计费规则功能及分组数据服务节点 技术领域 本发明涉及通信领域, 具体而言, 涉及一种策略制定方法、 策略和计费 规则功能及分组数据服务节点。 背景技术 第三代合作伙伴计划 ( 3rd Generation Partnership Project, 简称为 3GPP ) 定义了 4十对移动网络的策略和计费控制架构 (Policy and Charging Control, 简称为 PCC ), 图 1是根据相关技术的 3GPP PCC R8架构的示意图, 如图 1 所示, 各实体功能如下描述: 策略和计费规则功能( Policy and Charging Rules Function,简称为 PCRF ) 为业务包含的业务数据流使用网络资源进行服务质量( Quality of Service, 简 称为 QoS ) 和计费策略的制订和管理。 PCRF分为归属 PCRF ( home PCRF, 简称为 h-PCRF )和拜访 PCRF ( visit PCRF, 简称为 v-PCRF;), 其中, h-PCRF 位于归属网络, v-PCRF位于漫游网络。 策略和计费执行功能实体 ( Policy and Charging Enforcement Function, 简称为 PCEF ) 用于执行 PCRF下发的或者 PCEF上预配置的 PCC规则, 对 网络上传输的网络协议 ( Internet Proxy, 简称为 IP )报文进行检测, 识别该 IP 4艮文隶属的业务数据流, 并对业务数据流提供 QoS和计费控制。 载绑定和事件上 4艮功能 ( Bearer Binding and Event Report Function, 简 称为 BBERF )主要用于对网络上传输的 IP报文进行检测, 并将 IP报文按照 规则映射到对应的承载通道上。此外, BBERF还执行承载网关相关事件的上 报, 例如, 当承载丢失, 或者发生接入网络切换时, 都需要将相应的事件上 4艮给 PCRF , 请求 PCRF作相应的决策。 此夕卜, 用户签约数据库 ( Subscription Profile Repository, 简称为 SPR ) 用于保存用户签约的业务信息,为 PCRF制订 PCC规则提供必须的用户签约 信息。 在线计费系统 ( Online Charging System, 简称为 OCS )和离线计费系 统 ( Offline Charging System , 简称为 OFCS ) 分别用于在线和离线计费。 PCRF分别通过 Gx、 Gxa、 Sp、 Rx接口实现和 PCEF、 BBERF、 SPR、 应用功能 (Application Function, 简称为 AF ) 的交互, PCEF分别通过 Gy、 Gz接口实现和 OCS、 OFCS的交互。
PCC架构对 载网络上传输的业务实施策略控制的原理如下: 首先, PCRF在用户正式开展具体业务之前, 需要和 BBERF、 PCEF之 间分别建立网关控制会话、网络协议连接接入网( Internet Protocol Connection Access Network, 简称为 IP-CAN ) 会话, 并要建立网关控制会话和 IP-CAN 会话关联, 以保证针对特定业务数据流在 BBERF和 PCEF上实施控制策略 的一致性。 此后, 在业务开展过程中, 由 PCRF根据应用层协商业务信息、 用户签 约信息、 运营商策略等为业务包含的业务数据流制订相应的策略, 包含标识 流的五元组信息、授权带宽等信息。并将策略以 QoS规则形式下发给 BBERF, 以 PCC规则形式下发给 PCEF。 当 IP 4艮文到达 PCEF、 BBERF时, 首先才艮 据规则中的五元组信息匹配 IP 4艮文, 并将匹配上的 IP 4艮文使用对应的 载 进行传输, 并进行相应的计费, 以实现对业务的有效控制。 另外, 当业务开 展过程中, 发生业务信息的更改, 例如, 终止了某一业务数据流, 通过 PCC 也可以实时地释放业务所占的网络资源,达到对业务进行动态 QoS控制的目 的。 第三代合作伙伴计划 2 ( 3rd Generation Partnership Project2 , 简称为 3GPP2, ) 引入 PCC作为码分多址接入 2000 ( Code Division Multiple Access 2000, 简称为 CDMA2000 ) 网络的资源控制机制。 图 2 是根据相关技术的 CDMA2000网络引入的 PCC架构的示意图, 如图 2所示, 各实体功能如下 描述: 分组数据月艮务节点 (Packet Date Serving Node , 简称为 PDSN ) 是 CDMA2000 网络的功能网元, 向接入设备, 例如, 分组控制功能 (Packet Control Function , 简称为 PCF ) 开放标准的 A 10/A 11接口, 用于建立用于数 据报文传输和 QoS控制 A10连接, 同时, PDSN还是无线接入网络和外部分 组 IP网络的网关, 对终端和外部 IP网络的数据报文进行路由、 控制和转发。 下面分别对 CDMA2000使用单纯 IP ( Simple IP )协议、 移动 IP ( Mobile IP, 简称为 MIP ) 协议、 代理移动 IP ( Proxy Mobile IP ) 协议进行介绍。 1. CDMA2000网络使用 Simple IP协议。 终端的地址随附着网络的改变而改变, 即, 如果终端发生网络切换, 则 新的网络必须为其分配 IP地址。 终端需要使用新分配的 IP地址开展业务。 因此,如果正在开展业务的终端发生漫游, 则会中断正在开展的业务。 Simple IP十办议机制, PCEF功能置于 PDSN。 不需要 BBERF功能。
2. CDMA2000 网络使用 MIP协议, 有两个与协议相关的功能网元归属 代理 (Home Agent, 简称为 HA ) 和外地代理 ( Foreign Agent, 简称为 FA )。
HA其主要功能是作为终端在 MIP网络下移动时的锚定点, 为终端分配 归属 IP地址 (Home Address, 简称为 HoA )。 终端发生漫游, 或者发生接入 网络切换的时候, 由 HA分配给终端的 HoA始终不变, 使得终端在发生移动 的时候, 始终能够保证通信对端通过 HA分配给终端的 HoA找到该终端。
FA 通常位于终端当前所在的本地网络, 其主要功能是为终端提供本地 IP地址(Care of Address, 简称为 CoA )。 当终端发生漫游, 或者发生接入网 络切换的时候, 终端当前所在网络的 FA都要为终端提供 CoA。 如果终端移 动导致接入网络切换, 则 CoA也需要改变。 FA的功能可以置于 PDSN中。 使用 MIP协议有两种模式: FA-CoA模式和 CCoA模式:
1 ) FA-CoA模式
FA-CoA模式下 CoA为 FA的地址, 图 3是根据相关技术的 MIP协议 FA-CoA模式或 PMIP协议下的 PCC架构的示意图, 如图 3所示, MIP隧道 位于 FA和 HA之间, 同时, 还定义了反向隧道, 即, 对于前向和反向流都 经过 MIP隧道进行路由。 当标有目的地址为终端的 HoA的 IP 4艮文到达 HA (即, 隧道入口出), HA对 IP 4艮文进行重新封装, 带上 CoA经过 MIP隧道 到达 FA后在解封装去除 CoA后路由至终端。 对于终端发送的 IP 4艮文按照 同样的方式经过 MIP隧道路由至 HA, 进而路由至外部网络。 FA-CoA模式 下, BBERF功能位于 FA/PDSN, 而 PCEF功能位于 HA。
2 ) CCoA模式
CCoA模式下 CoA为终端地址, 图 4是根据相关技术的 MIP协议 CCoA 模式下的 PCC架构的示意图, 如图 4所示, MIP隧道位于终端和 HA之间,
FA不参与隧道建立过程。 但是, 由于终端和 FA之间仍然建有连接, 即, 报 文经过 MIP隧道达到 FA时,需要通过连接进行路由传输,因此,在 FA/PDSN 上仍然需要安置 BBERF功能。 而 HA执行 PCEF功能。
3. CDMA2000网络使用 PMIP协议,有两个与协议相关的功能网元本地 移动错定( Localized Mobility Anchor, 简称为 LMA )和移动接入网关( Mobile Access Gateway, 简称为 MAG )。
LMA是终端在 PMIP域的归属代理, 相当于 MIP协议中 HA的功能, 用于终端在归属网络的锚定, 给终端分配不变的 IP地址。
MAG 是接入路由中的功能。 用于管理终端附着到接入网络时移动性相 关的信令。 艮踪终端的移动, 并是终端本地移动的锚定点。 MAG 的功能可 以置于 PDSN。
PMIP协议下的 PMIP隧道建立在 LMA和 MAG之间, 如图 3所示。 终 端和外部网络交互的报文都要经过 PMIP隧道进行路由。 与 MIP协议的区别 是, PMIP协议下, 终端不会感知移动, 即网络不会将本地 IP地址告知给终 端, 终端开展业务仅使用 HoA。 PMIP协议下, MAG/PDSN执行 BBERF功 能, LMA执行 PCEF功能。 才艮据 PCC架构的定义, BBERF和 PCEF的主要区别在于, BBERF主要 用于对业务数据流传输使用网络资源进行 QoS控制, 而 PCEF除了对业务数 据流进行 QoS控制外, 还需要进行计费控制。 因此, PCRF通过 Gx会话与 PCEF进行 QoS和计费策略的交互, 而通过 Gxx会话与 BBERF进行 QoS策 略的交互。 对于图 2所示的 CDMA2000网络下的 PCC架构,如果 CDMA2000使用 Simple IP协议, 则 PDSN执行 PCEF功能, 需要进行计费控制。 而如果使用 MIP或 PMIP协议, 则 PDSN执行 BBERF功能, 不需要进行计费控制。 这 就对 PDSN的功能提出了需求, 就是 PDSN需要根据协议使用状况, 而选择 是否行使 PCC下的计费功能; PCRF也需要根据网络使用协议状况而决策使 用 Gx会话还是 Gxx会话和 PDSN进行控制策略交互。 虽然终端在开展具体的业务之前,需要附着到网络,此时 BBERF或 PCEF 需要和 PCRF建立 Gxx会话或 Gx会话。 由于 Gxx会话和 Gx会话具有各自 的 Diameter会话标识, PCRF根据会话标识可以区分 Gxx会话和 Gx会话, 从而可以区分是和 BBERF交互还是和 PCEF交互, 对于 PDSN即可能执行 BBERF, 又可能执行 PCEF功能的情况, PCRF进而可以进一步感知 PDSN 是执行 BBERF功能还是 PCEF功能。 但是根据 PCC架构定义, 如果架构存 在 BBERF功能, 则终端在附着过程中, 需要首先建立 Gxx会话, 还需要建 立 Gx会话, 并需要建立 Gxx会话的关联。 此时如果 PCRF在没有收到 Gxx 会话的情况下, 接收到了 Gx会话, 就可能导致 PCRF判断会话建立过程发 生错误。 因此, 如果是 PDSN既执行 BBERF功能, 又执行 PCEF功能的情 况, 仅根据 Diameter会话标识, 还不能完全解决 PCRF对 PDSN执行功能进 行区分的问题。 另外,对于同时兼容 Simple IP和 MIP协议的终端发起业务,要在 PDSN 上实施正确的策略控制, 同样需要解决上述问题, PCRF 也需要解决正确区 分 PDSN执行 PCEF还是 BBERF功能。 发明内容 针对相关技术中根据 Diameter会话标识可能无法正确区分 PDSN执行 PCEF功能还是 BBERF功能,以及无法对 PDSN进行区分控制策略的问题而 提出本发明, 为此, 本发明的主要目的在于提供一种改进的策略制定方案, 以解决上述问题至少之一。 为了实现上述目的,根据本发明的一个方面,提供了一种策略制定方法。 根据本发明的策略制定方法包括: 策略和计费规则功能接收来自分组数 据服务节点的协议区分信息; 策略和计费规则功能根据协议区分信息制定策 略, 并将策略发送给分组数据艮务节点。 为了实现上述目的,根据本发明的一个方面,提供了一种策略制定方法。 才艮据本发明的策略制定方法包括: 分组数据月艮务节点向策略和计费规则 功能发送协议区分信息, 以便策略和计费规则功能根据协议区分信息制定策 略; 分组数据服务节点接收来自策略和计费规则功能的策略, 并根据策略确 定执行的功能。 为了实现上述目的, 根据本发明的另一个方面, 提供了一种策略和计费 规则功能。 根据本发明的策略和计费规则功能包括: 接收模块, 用于接收来自分组 数据服务节点的协议区分信息, 其中, 协议区分信息用于指示协议的类型; 策略模块, 用于根据协议区分信息制定策略; 发送模块, 用于将策略发送给 分组数据艮务节点。 为了实现上述目的, 根据本发明的另一个方面, 还提供了一种分组数据 服务节点。 才艮据本发明的分组数据月艮务节点包括: 第二发送模块, 用于向策略和计 费规则功能发送协议区分信息以便策略和计费规则功能根据协议区分信息制 定策略, 其中, 协议区分信息用于指示终端与分组数据服务节点连接所使用 的协议的类型; 第二接收模块, 用于接收来自策略和计费规则功能的策略; 确定模块, 用于 居策略确定执行的功能。 通过本发明, 釆用 PCRF接收并根据来自 PDSN的协议区分信息制定策 略,然后将制定的策略发送给 PDSN,解决了相关技术中 PCRF根据 Diameter 会话标识可能无法正确区分 PDSN执行 PCEF功能还是 BBERF功能的问题, 以及对 PDSN进行区分控制策略的问题, 进而达到了对网络正确进行策略和 计费控制的效果。 附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部 分, 本发明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的 不当限定。 在附图中: 图 1是根据相关技术的 3GPP PCC R8系统架构的示意图; 图 2是根据相关技术的 CDMA2000网络引入的 PCC架构的示意图; 图 3是才艮据相关技术的 MIP协议 FA-CoA模式或 PMIP协议下的 PCC 架构的示意图; 图 4是根据相关技术的 MIP协议 CCoA模式下的 PCC架构的示意图; 图 5是 居本发明实施例的策略制定方法的流程图; 图 6是才艮据本发明实施例的实施例二的方法的流程图; 图 7是才艮据本发明实施例的实施例三的方法的流程图; 图 8是才艮据本发明实施例的实施例四的方法的流程图; 图 9是才艮据本发明实施例的 PCRF的结构框图; 图 10是才艮据本发明实施例的 PDSN的结构框图。 具体实施方式 需要说明的是, 在不冲突的情况下, 本申请中的实施例及实施例中的特 征可以相互组合。 下面将参考附图并结合实施例来详细说明本发明。 在以下实施例中, 在附图的流程图示出的步 4聚可以在诸如一组计算机可 执行指令的计算机系统中执行, 并且, 虽然在流程图中示出了逻辑顺序, 但 是在某些情况下, 可以以不同于此处的顺序执行所示出或描述的步骤。 实施例一 在本实施例中提供了一种策略制定方案,该方案的处理原则如下: 首先, PCRF从 PDSN获取协议区分信息。 协议区分信息可在会话建立或者会话修 改阶段从 PDSN获取。 会话可以是网关控制会话或 IP-CAN会话; 协议区分 信息可以是协议区分标识用于标识承载网络使用的协议。 协议可以是 Simple IP协议、 MIP协议、 PMIP协议等。 然后, 才艮据协议区分信息, PCRF进行策 略决策和下发。 如果 居协议区分信息, PCRF 居协议区分信息得知釆用 的是 Simple IP协议, 则 PCRF制订 QoS和计费策略, 并通过 Gx会话下发给 PDSN执行, PDSN执行 PCEF功能; 如果根据协议区分信息, PCRF得知釆 用的是 MIP协议或 PMIP协议, 则 PCRF制订 QoS策略, 并通过 Gxx会话 下发给 PDSN执行。 PDSN执行 BBERF功能。 图 5是^ f艮据本发明实施例的策略制定方法的流程图, 如图 5所示, 该方 法包括如下的步骤 S 102至步骤 S 104: 步骤 S 102, PCRF接收来自 PDSN的协议区分信息; 优选地, 该协议区 分信息用于指示协议的类型, 该协议区分信息也可以指示协议的其他信息, 只要使 PCRF能够根据该信息制定策略, 就可以达到本实施例的目的。 步骤 S 104, PCRF根据协议区分信息制定策略, 并将策略发送给 PDSN。 PCRF 可以根据协议区分信息确定发送协议区分信息所使用的会话, 并通过 会话发送制定的策略。 优选地, 在步骤 S 102之前, PDSN向 PCRF发送协议区分信息, 其中, 协议是终端与 PDSN连接所使用的协议; 在步骤 S 104之后, PDSN接收来自 PCRF的策略, 并根据策略确定执行的功能。 下面通过两个方面对 PDSN确 定执行的功能进行描述。 方面一, 如果协议区分信息指示的协议为 Simple IP, 则 PCRF制定并通 过 Gx向 PDSN发送月艮务质量和计费策略, PDSN接收到 QoS策略和计费策 略之后, 执行 PCEF功能。 方面二, 如果协议区分信息指示的协议为 MIP或 PMIP协议, 则 PCRF 制定并通过 Gxx会话向 PDSN发送 QoS策略, PDSN接收到 QoS策略之后, 并执行 BBERF功能。 优选地, PCRF在会话建立或会话修改阶段接收来自 PDSN的协议区分 信息, 其中, 会话可以至少包括以下之一: 网关控制会话、 网络协议连接接 入网会话。 实施例二 在本实施例中, 会话创建时, 当 PCRF收到一个会话创建请求, 需要发 起一个会话创建流程, 则 PCRF 从请求消息中获取到该会话的底层协议为 Simple IP时, 制定并下发 PCC规则给 PDSN ( PCEF ),供 PCEF安装并执行。 图 6是才艮据本发明实施例的实施例二的方法的流程图, 如图 6所示, 该流程 包括如下步骤: 步骤 601. PDSN ( PCEF )接收到创建 IP-CAN 载请求, 建立 IP-CAN 会话创建指示消息。 步骤 602. PDSN ( PCEF )通过 Diameter CCR消息向 PCRF发起 IP-CAN 会话创建请求, 并在该消息中带上协议区分信息。 如果是漫游的情况下, 该 请求消息需要经过 v-PCRF发送给 h-PCRF。 步骤 603. PCRF接收到该请求消息, 并将携带的信息进行保存, 根据携 带的协议区分信息判断出为 Simple IP协议。 步骤 604. 如果此时 PCRF没有与该用户相关的用户签约信息,则从 SPR 中获取。 步骤 605. PCRF才艮据上述获取的用户签约信息以及运营商策略, 为即将 建立的 IP-CAN会话生成 PCC规则。 步-骤 606. PCRF通过 Diameter CCA消息向 PDSN ( PCEF )返回 IP-CAN 会话创建响应, 提供 PCC规则。 如果是漫游情况, 响应消息由 h-PCRF通过 v-PCRF下发给 PDSN ( PCEF )„ 步骤 607. PDSN ( PCEF )执行策略, 安装接收到的 PCC规则。 步骤 608. PDSN ( PCEF )返回创建 IP-CAN 载响应。 实施例三 在本实施例中, 会话创建时, 当 PCRF收到一个会话创建请求, 需要发 起一个会话创建流程,则 PCRF从请求消息中获取到该会话的协议区分信息, 为 MIP/PMIP时, 需下发 PCC规则到 HA/LMA给 PCEF, 同时, 剥离出 QoS 规则下发到 PDSN/FA/MAG给 BBERF, 在 BBERF和 PCEF上实施一致的控 制策略。 图 7是才艮据本发明实施例的实施例三的方法的流程图,如图 7所示, 该流程包括如下的步骤: 步 4聚 701. PDSN/FA/MAG ( BBERF )检测到 UE发起 IP-CAN会话建立 请求,在 PDSN/FA ( BBERF )和 PCRF之间建立网关控制会话。建立过程中, 将用户标识、 PDN标识、 IP-CAN接入类型和协议区分信息发送给 PCRF。 步骤 702. HA/LMA ( PCEF )接收到该 IP-CAN会话建立请求。 步骤 703. HA/LMA ( PCEF ) 通过 Diameter CCR 消息向 PCRF 发起 IP-CAN会话建立请求, 请求消息中包含协议区分信息、 用户标识、 PDN标 识、 UE本地 IP地址、 IP-CAN接入类型、 默认计费方法等信息。 如果是漫 游情况, 则请求消息通过 v-PCRF发送给 h-PCRF。 步骤 704. PCRF接收来自 HA ( PCEF )的消息。 获取并保存该消息中携 带的信息, 然后, 才艮据携带的协议区分信息判断出为 MIP/PMIP协议。 步骤 705.才艮据 HA/LMA ( PCEF )发送的用户标识、 PDN标识, 以及网 关控制会话建立阶段 PDSN/FA/MAG ( BBERF )发送的用户标识和 PDN标 识, PCRF完成网关控制会话和 IP-CAN会话的关联。 步骤 706. 如果 PCRF 此时缺少该用户相关的用户签约信息, 则向 SPR 获取。 步骤 707.根据上述信息以及运营商策略, PCRF进行策略决策, 并选择 或者产生 PCC规则。 步骤 708. PCRF通过 Diameter CCA消息向 HA/LMA ( PCEF )提供 PCC 规则。 如果是漫游的情况, 则 PCC规则需要 h-PCRF通过 v-PCRF提供给 PCEF。 步骤 709. 此时 PCRF还需要根据 PCC规则产生 QoS规则, 通过网关控 制和 QoS规则提供程序将最新的 QoS规则系统给 PDSN/FA/MAG( BBERF )。 步骤 710. HA/LMA ( PCEF )接收策略, 安装 PCC规则。 步骤 711. HA/LMA ( PCEF )返回会话建立请求的响应。 实施例四 在本实施例中, BBERF重定位时的网关控制会话创建, 当 PCRF收到一 个网关控制会话创建请求, 需要发起一个新的网关控制会话创建流程, 则 PCRF从请求消息中获取到该会话的协议区分信息, 为 MIP/PMIP 时, 如果 PCEF需要更新则需要发起 IP-CAN会话修改流程,下发 PCC规则到 HA/LMA 给 PCEF,同时剥离出 QoS规则下发到 PDSN/FA/MAG给 BBERF,在 BBERF 和 PCEF上实施一致的控制策略。 图 8是根据本发明实施例的实施例四的方 法的流程图, 如图 8所示, 该流程包括如下步骤: 步骤 801. PDSN/FA/MAG( BBERF )接收到一个网关控制会话创建指示, 发起一个 PDSN/FA/MAG ( BBERF ) 和 PCRF之间的网关控制会话的创建。 步骤 802. PDSN/FA/MAG ( BBERF ) 通过 Diameter CCR向 PCRF发送 网关控制会话创建请求, 将用户标识、 PDN标识、 IP-CAN接入类型和协议 区分信息发送给 PCRF。 如果是漫游情况, 则请求消息通过 v-PCRF发送给 h-PCRF。 步骤 803. PCRF接) 来自 PDSN/FA/MAG ( BBERF )的消息。 获取并保 存携带的信息, 然后, 根据携带的协议区分信息判断出为 MIP/PMIP协议。 步骤 804.根据当前会话的用户标识、 PDN 标识, 以及在网关控制会话 建立请求中 PDSN/FA/MAG ( BBERF )发送的用户标识和 PDN标识, PCRF 完成网关控制会话和 IP-CAN会话的关联。 步骤 805. 如果 PCRF 此时缺少该用户相关的用户签约信息, 则向 SPR 获取。 步骤 806.才艮据上述信息以及运营商策略, PCRF进行策略决策, 并选择 或者产生 PCC规则。 步骤 807. PCRF通过 Diameter CCA消息向 BBERF提供 PCC规则。 如 果是漫游的情况, 则 PCC规则需要 h-PCRF通过 v-PCRF提供给 BBERF。 步 4聚 808. Target BBERF给 PCRF发送一个 Ack消息, 告知 PCRF下发 的 QoS规则激活结果, 指出是否资源请求成功分配。 步骤 809.根据上面 QoS规则的激活情形,如果此前提供给 PCEF的 PCC 规则需要更新, 则 PCRF等待 PCEF发起一个 IP-CAN会话修改处理, 来更 新 PCEF。 PCEF会将协议区分标识在请求消息里带给 PCRF。 步骤 810. 此时 PCRF还需要根据 PCC规则产生 QoS规则, 通过网关控 制和 QoS规则提供程序将最新的 QoS规则系统给 Target BBERF„并将 Source BBERF中的相关 QoS规则移除。 实施例五 在本实施例中提供了一种 PCRF, 图 9是根据本发明实施例的 PCRF的 结构框图, 如图 9所示, 该 PCRF包括: 接收模块 92、 策略模块 94、 发送模 块 96 , 下面对该结构进行说明。 接收模块 92 , 用于接收来自 PDSN的协议区分信息, 其中, 协议区分信 息用于指示协议的类型; 策略模块 94连接至接收模块 92 , 用于根据协议区 分信息制定策略;发送模块 96连接至策略模块 94 ,用于将策略发送给 PDSN。 在本实施例中还提供了一种 PDSN, 图 10是根据本发明实施例的 PDSN 的结构框图, 如图 10所示, 该 PDSN包括: 第二发送模块 12、 第二接收模 块 14、 确定模块 16 , 下面对该结构进行详细的说明。 第二发送模块 12 ,用于向策略和计费规则功能发送协议区分信息以便策 略和计费规则功能根据协议区分信息制定策略, 其中, 协议区分信息用于指 示终端与 PDSN连接所使用的协议的类型; 第二接收模块 14连接至第二发 送模块 12 , 用于接收来自策略和计费规则功能的策略; 确定模块 16连接至 第二接收模块 14 , 用于根据策略确定执行的功能。 下面从两个方面对确定模 块 16的功能进行描述。 方面一, 如果协议区分信息指示的协议为 Simple IP, 则 PCRF制定并通 过 Gx向 PDSN发送月艮务质量和计费策略, PDSN接收到 QoS策略和计费策 略之后, 执行 PCEF功能。 方面二, 如果协议区分信息指示的协议为 MIP或 PMIP协议, 则 PCRF 制定并通过 Gxx会话向 PDSN发送 QoS策略, PDSN接收到 QoS策略之后, 并执行 BBERF功能。 综上所述, 通过本发明的上述实施例, 解决了 PCRF 才艮据 CDMA2000 网络使用协议的区别, 对 PDSN进行区分控制策略的问题, 达到对网络正确 进行策略和计费控制的目的。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可 以用通用的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布 在多个计算装置所组成的网络上, 可选地, 它们可以用计算装置可执行的程 序代码来实现, 从而, 可以将它们存储在存储装置中由计算装置来执行, 或 者将它们分别制作成各个集成电路模块, 或者将它们中的多个模块或步骤制 作成单个集成电路模块来实现。 这样, 本发明不限制于任何特定的硬件和软 件结合。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本 领域的技术人员来说, 本发明可以有各种更改和变化。 凡在本发明的 ^"神和 原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护 范围之内。

Claims

权 利 要 求 书
1. 一种策略制定方法, 其特征在于, 包括:
策略和计费规则功能接收来自分组数据服务节点的协议区分信息; 所述策略和计费规则功能根据所述协议区分信息制定策略, 并将所 述策略发送给所述分组数据服务节点。
2. 根据权利要求 1所述的方法, 其特征在于, 所述策略和计费规则功能接 收来自所述分组数据服务节点协议区分信息包括:
所述策略和计费规则功能在会话建立或会话修改阶段接收来自所述 分组数据服务节点的协议区分信息。
3. 根据权利要求 2所述的方法, 其特征在于, 所述会话至少包括以下之一: 网关控制会话、 网络协议连接接入网会话。
4. 根据权利要求 1所述的方法, 其特征在于, 如果所述协议区分信息指示 的协议为单纯网络协议, 则所述策略和计费规则功能制定并向所述分组 数据月艮务节点发送月艮务质量和计费策略。
5. 根据权利要求 4所述的方法, 其特征在于, 在所述策略和计费规则功能 制定并向所述分组数据艮务节点发送所述艮务质量策略和所述计费策略 之后, 所述方法还包括:
所述分组数据服务节点接收所述服务质量策略和所述计费策略, 并 执行策略和计费执行功能实体功能。
6. 根据权利要求 1所述的方法, 其特征在于, 如果所述协议区分信息指示 的协议为移动网络协议或代理移动网络协议, 则所述策略和计费规则功 能制定并向所述分组数据艮务节点发送艮务质量策略。
7. 根据权利要求 6所述的方法, 其特征在于, 在所述策略和计费规则功能 制定并向所述分组数据艮务节点发送所述艮务质量策略之后, 所述方法 还包括:
所述分组数据服务节点接收所述服务质量策略, 并执行承载绑定和 事件上报功能。
8. 根据权利要求 1至 7中任一项所述的方法, 其特征在于, 将所述策略发 送给所述分组数据艮务节点包括:
所述策略和计费规则功能根据所述协议区分信息确定发送所述协议 区分信息所使用的会话, 并通过所述会话发送所述策略。
9. 根据权利要求 1至 7中任一项所述的方法, 其特征在于, 所述协议区分 信息用于指示协议的类型。
10. —种策略制定方法, 其特征在于, 包括:
分组数据服务节点向策略和计费规则功能发送协议区分信息, 以便 所述策略和计费规则功能根据所述协议区分信息制定策略;
分组数据服务节点接收来自策略和计费规则功能的所述策略, 并根 据所述策略确定执行的功能。
11. 根据权利要求 10所述的方法, 其特征在于, 所述协议区分信息用于指示 终端与所述分组数据艮务节点连接所使用的协议的类型。
12. 一种策略和计费规则功能, 其特征在于, 包括:
接收模块, 用于接收来自分组数据服务节点的协议区分信息, 其中, 所述协议区分信息用于指示协议的类型;
策略模块, 用于根据所述协议区分信息制定策略;
发送模块, 用于将所述策略发送给所述分组数据服务节点。
13. —种分组数据艮务节点, 其特征在于, 包括:
第二发送模块, 用于向策略和计费规则功能发送协议区分信息以便 所述策略和计费规则功能根据所述协议区分信息制定策略, 其中, 所述 协议区分信息用于指示终端与所述分组数据月艮务节点连接所使用的协议 的类型;
第二接收模块, 用于接收来自策略和计费规则功能的所述策略; 确定模块, 用于根据所述策略确定执行的功能。
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CN101384076A (zh) * 2007-09-04 2009-03-11 华为技术有限公司 一种策略和计费控制的处理方法、切换方法、系统及设备
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CN101370006A (zh) * 2007-08-15 2009-02-18 华为技术有限公司 网络协议连通接入网会话建立方法及会话删除方法
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