WO2008131695A1

WO2008131695A1 - Method, device and system for realizing policy and charging control in wireless communication system

Info

Publication number: WO2008131695A1
Application number: PCT/CN2008/070827
Authority: WO
Inventors: Liang Gu; Jianjun Wu; Xianhui He; Wei Zhang
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2007-04-27
Filing date: 2008-04-28
Publication date: 2008-11-06

Abstract

A method, device and system for realizing the policy and charging control in the wireless communication system, comprises, the PCRF entity acquiring the information of the first PCEF entity located in the core network; and the PCRF sending the determined policy and charging rules to the first PCEF entity, or to the first PCEF entity and the second PCEF entity located in the access network.

Description

Method, device and system for implementing policy charging control in wireless communication system

[1] Technical field

[2] The present invention relates to the field of network communication technologies, and in particular, to a policy charging control technology in a wireless communication system.

[3] Background of the invention

[4] With the development of wireless communication technology, IEEE-based IEEE has been introduced.

The 802.16 (Institute of Electrical and Electronics Engineers' Broadband Wireless Access Air Interface Standard) microwave access Global Interoperability (WiMax) network, which provides higher access rates.

[5] The reference structure of the WiMax network can be as shown in FIG. 1 and FIG. 2, wherein FIG. 1 is a reference structure of the WiMax network in the case of non-roaming, and FIG. 2 is a reference structure of the WiMax network in the case of roaming. In the reference structure of the WiMax network, the user's authentication and authorization is implemented by an Authentication Authorization Accounting (AAA) server in the user's home Connectivity Service Network (CSN).

[6] During the actual deployment of the WiMax network, refer to Figure 2, Network Access

Provider (Network Access Provider, NAP), Visited Network Service

Provider (visited network monthly service provider ' Visited NSP) and Home Network Service Provider (home network service provider, Home

NSP) may belong to different operators, and there may be multiple Access Service in the same area.

Network (Access Service Network, ASN) coverage, each ASN may be connected to multiple NSP networks.

[7] In the WiMax network, there are two main ways to deploy NAP and NSP: One way is to deploy NAP and NSP in a one-to-one relationship; the other is to use one ASN and more in NAP. There are roaming protocols in NSPs, that is, they are deployed by multiple NSPs.

[8] In the process of implementing the present invention, the inventors have found that the above prior art has at least the problem that the corresponding policy charging control cannot be implemented in a roaming scenario, and similarly exists in other similar wireless communication networks. A similar problem. Summary of the invention

Embodiments of the present invention provide a method, apparatus, and system for implementing policy charging control in a wireless communication system, so that policy charging control processing for a roaming scenario can be implemented in a wireless communication system.

Embodiments of the present invention provide a method for implementing policy charging control in a wireless communication system, where the method includes:

The policy charging decision entity acquires information of the first policy charging execution entity;

The policy charging decision entity sends the policy charging rule determined by the policy charging rule to the first policy charging executing entity, or to the first policy charging executing entity and the second policy charging executing entity set in different locations. Perform policy charging control.

An embodiment of the present invention provides an allocation entity of a policy charging execution entity, including:

An allocation processing unit, configured to allocate, to the currently accessed terminal device, a corresponding first policy charging execution entity first information delivery unit, configured to send information about the first policy charging execution entity allocated by the allocation processing unit to Policy charging decision entity.

The embodiment of the invention provides a policy charging decision entity, including:

An information receiving unit, configured to receive information about a first policy charging execution entity;

a policy charging rule sending unit, configured to send the policy charging rule to the first policy charging executing entity according to the information of the first policy charging executing entity received by the information receiving unit, or send the The first policy charging execution entity and the second policy charging execution entity disposed in the access network. Embodiments of the present invention provide a system for implementing policy charging control in a wireless communication system, where the system includes:

An allocation entity of the policy charging enforcement entity, configured to allocate a first policy charging execution entity to the currently accessed terminal, and send the information of the first policy charging entity to a policy charging decision entity at the home location; a charging decision entity, configured to acquire information about the first policy charging execution entity, and send the policy charging rule determined by the first policy charging execution entity to the first policy charging executing entity, or send the information to a different location The first policy charging enforcement entity and the second policy charging enforcement entity.

It can be seen from the technical solutions provided by the foregoing embodiments of the present invention that, in the embodiment of the present invention, when the first policy After the dynamic accounting entity is dynamically allocated, the corresponding policy charging rule may be sent to the first policy charging executing entity, so that the corresponding policy charging control can be performed normally.

[24] BRIEF DESCRIPTION OF THE DRAWINGS

[25] FIG. 1 is a schematic structural diagram of a WiMax network in a non-roaming situation in the prior art;

[26] FIG. 2 is a schematic structural diagram of a WiMax network in a roaming situation in the prior art;

[27] FIG. 3 is a schematic structural diagram of a policy charging framework in the prior art;

FIG. 4 is a schematic structural diagram of an application scenario 1 according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of an application scenario 2 according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of an application scenario 3 according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of an application scenario 4 according to an embodiment of the present disclosure;

FIG. 8 is a first schematic diagram of a processing procedure of a method according to an embodiment of the present invention; FIG.

FIG. 9 is a second schematic diagram of a processing procedure of a method according to an embodiment of the present invention; FIG.

FIG. 10 is a third schematic diagram of a processing procedure of a method according to an embodiment of the present invention; FIG.

FIG. 11 is a schematic diagram 4 of a processing procedure of a method according to an embodiment of the present invention; FIG.

FIG. 12 is a schematic diagram 5 of a processing procedure of a method according to an embodiment of the present invention; FIG.

FIG. 13 is a schematic structural diagram of an apparatus and system according to an embodiment of the present invention.

[38] Mode for carrying out the invention

[39] In the process of implementing the embodiment of the present invention, in order to implement policy charging control, the policy and Charging are selected.

The Control (Policy Charging Control, PCC) framework performs policy charging operations, and a policy control and charging control function framework suitable for various IP connection access networks is specifically defined in the PCC framework. Wherein, the policy control includes Gating Control and QoS

Control (Quality of Service Control); The stated charging control refers to Flow Based

Charging (flow-based billing, FBC).

[40] The structure of the PCC framework is shown in Figure 3, which mainly includes the following functional entities:

[41] Policy Control and Charging Rules

Function (Policy Charging Decision, PCRF) entity, used for policy control decision and flow-based charging control. The PCRF may specifically include a QoS policy decision function and/or a charging policy decision function. The determined policy charging rules include: a quality of service policy and/or a charging policy;

[42] Policy Control and Charging Enforcement

Function (Policy Accounting Execution, PCEF) entity for traffic data flow detection, policy enforcement, and flow-based billing-based execution.

[43] Policy and Charging required to apply policy charging control in the PCC framework

Control Rules (PCC Rules), according to the PCC

Rule can assign a business data stream to an IP Connectivity Access

Network (IP connection access network, IP CAN) on the bearer; the PCC

The specific content of Rule can include: Rule Identity, Rule

ID), service data flow detection information, billing information, and policy control information.

[44] Based on the PCC framework, the implementation of the corresponding policy charging control in the roaming scenario provided by the embodiment of the present invention includes: the PCRF entity acquires information of the first PCEF entity, where the first PCEF entity is used to The terminal accessing the network provides a policy charging execution operation; the PCRF sends the determined policy charging rule to the first PCEF entity, or sends the first PCEF entity and the second PCEF entity set to different locations, thereby In the wireless communication system, policy charging control can be performed on terminals accessing the network. The different locations of the first PCEF entity and the second PCEF entity may be: the first PCEF entity is set in the CSN network, and the second PCEF entity is set in the ASN, or The first PCEF entity is set in the core network, the second PCEF entity is set in the access network, and the like.

In the embodiment of the present invention, if the PCRF entity is a PCRF entity of a home location, the PC RF entity of the home location directly obtains information of the first PCEF entity from an allocation entity of the first PCEF entity, for example, And the information of the location, the identifier, the domain name, and/or the address of the first PCEF entity, where the location refers to the CSN of the home location or the CSN of the visited place; if the PCRF entity is the PCRF entity of the visited place, Then, the PCRF entity of the visited location acquires the information of the first PCEF entity from the allocated entity of the first PCEF entity by using the PCRF entity of the home location.

In the embodiment of the present invention, the process of acquiring the information of the first PCEF entity by the PCRF entity includes one or more of the following manners:

[1] (1) The PCRF entity is a home PCRF entity, and the home PCRF entity may directly Acquiring the information of the first PCEF entity from the allocation entity of the first PCEF entity; or, the PCR F entity is a visited PCRF entity, and the PCRF entity of the visited location may be from the first PCEF through the PCRF entity of the home location Obtaining an entity of the entity to obtain information of the first PCEF entity;

[0] (2) The PCRF entity of the home location or the PCRF entity of the visited location may obtain the information of the first PCEF entity from the request for acquiring the policy charging rule sent by the second PCEF entity;

[49] (3) The PCRF entity of the home location or the PCRF entity of the visited location may obtain the information of the first PCEF entity directly from the request for acquiring the policy charging rule sent by the first PCEF entity, or The PCRF entity of the PCRF entity or the visited location may further receive registration information sent by the first PCEF entity through the policy distribution entity, and obtain information of the first PCEF entity from the registration information;

[50] (4) The PCRF entity of the home location may acquire the first PCEF entity from the PCRF entity of the visited place

I port from te! ,.,

[51] (5) The PCRF entity of the visited place may acquire the first PCEF entity from the PCRF entity of the home location

I port from te! ,.,

[52] In the above manner, the information of the first PCEF entity refers to: whether to use the indication of the first PCEF entity

Information such as the location, identity, domain name, and/or address of the first PCEF entity, where the location refers to the CSN of the home location or the CSN of the visited place.

[53] Further, in the embodiment of the present invention, the process of determining the policy charging rule is sent to the first PCEF entity, or the process of sending the same to the first PCEF entity and the second PCEF entity may use any of the following Implementation plan:

[54] (1) The PCRF entity of the home location sends the determined policy charging rule to the first PCEF entity, or the first PCEF entity and the second PCEF entity, directly or through the policy distribution entity, and then, without visiting the destination With the participation of the PCRF, the setting of the PCRF in the visited place can be omitted;

[55] wherein the policy distribution entity may be set independently, or may be associated with the first PCEF entity or P

The CRF entity is set in the same device;

[0] (2) The policy charging decision entity of the visited place sends the policy charging rule to the first PCEF entity, or the first PCEF entity and the second PCEF entity, directly or through the policy distribution entity;

[57] (3) The PCRF entity of the home location sends the policy charging rule to the PCRF entity of the visited place, and the PCRF entity of the visited place performs corresponding reduction processing according to the network resource and/or policy of the transmission network. And the first PCEF entity and the second PCEF entity, where the first PCEF entity may be located in the CSN of the visited place or may also be located in the CSN of the home location, and the first The P _CEF entity and the policy charging rule in the second _PCEF entity can be consistent;

[58] (4) The PCRF entity of the home location sends the policy charging rule to the PCRF entity of the visited place and the first PCEF entity, and the PCRF entity of the visited place according to the network resource and/or policy of the transmission network The policy charging rule is processed and then sent to the second PCEF entity, so that the first PCEF entity and the second PCEF entity can obtain the corresponding policy charging rule.

[59] (5) The PCRF entity of the home location sends the policy charging rule to the PCRF entity of the visited place, and the PCRF entity of the visited place applies the policy charging rule according to the network resource and/or policy of the transmission network. And performing a clipping process, and sending the PCRF entity to the second PCEF entity and the home location, where the policy charging decision entity of the home location sends the policy charging rule that is processed by the PCRF entity of the visited site to the first PC EF entity To ensure the consistency of the policy charging rules saved in the first PCEF entity and the second PCEF entity.

Therefore, in the embodiment of the present invention, when the first PCEF entity is dynamically allocated, the corresponding policy charging rule may be sent to the first PCEF entity. Moreover, further, the consistency of the policy charging rules on the different policy charging execution entities (for example, the first PCEF entity and the second PCEF entity) and the policy of the policy charging execution entity and the home location PCRF are also guaranteed. The consistency of the billing rules.

In the embodiment of the present invention, the process of sending the determined policy charging rule by the PCRF entity may be triggered by any of the following methods:

[62] (1) The PCRF entity of the home location or the PCRF entity of the visited place receives the request for acquiring the policy charging rule sent by the first PCEF entity or the second PCEF entity;

[63] (2) The PCRF entity of the home location or the PCRF entity of the visited place determines that the policy charging rule needs to be sent to the first PCEF entity or the second PCEF entity according to its own situation;

[64] (3) The PCRF entity at the home location receives the request for obtaining the policy charging rule sent by the PCRF entity at the visited place;

[65] When any of the above conditions are met, the PCRF entity can perform the processing of the policy charging rule.

[66] The following will be HA as the first PCEF, the PCEF in the ASN as the second PCEF, and the AAA server Taking the assigned entity of the HA as an example, the implementation process of the policy charging control for HA dynamic allocation in the roaming scenario in the WiMax network is described; the implementation process of the policy charging control in other wireless communication systems and WiMa

The X network is similar.

[67] In the roaming scenario, the dynamic allocation of HA is negotiated by the H-AAA and V-AAA in the terminal authentication authentication phase. After the terminal successfully accesses the network, the PCRF (H-PCRF) at the home location or the PCRF (V-PCRF) at the visited site sends the PCC.

Before the Rules, H-PCRF or V-PCRF must know the results of HA dynamic allocation, ie H-PCRF or V-PC

The RF needs to know that the HA corresponding to the IP-CAN Session of the terminal is located at the H-CSN or V-CSN.

[68] The address of the HA located in the same CSN network can be pre-configured on the PCRF. When H-PCRF or V-P

After the CRF knows that the HA is in the same network, the H-PCRF or V-PCRF sends the generated PCC Rules to the HA according to its pre-configured HA address.

[69] If H-PCRF or V-PCRF does not pre-configure the HA address or HA does not send PCC to it

The PCRF of the Rules is in the same CSN network, and the H-PCRF or V-PCRF needs to dynamically obtain the address of the HA.

, in order to facilitate the delivery of PCC Rules.

In order to facilitate the understanding of the embodiments of the present invention, the implementation of the policy charging control in the roaming scene will be described below with reference to the accompanying drawings.

[71] In a roaming scenario, the HA allocated to the terminal accessing the network can be located in the V-CSN or at the H.

-CSN, and, HA can obtain PCC from V-PCRF in V-CSN

Rules, can also obtain the corresponding PCC from H-PCRF in H-CSN

Therefore, in the embodiment of the present invention, the following may be specifically divided into the following application scenarios:

[72] Application Scenario 1

[73] In this application scenario, the HA is located in the V-CSN, and the HA chooses to obtain the PC C Rules from the V-PCRF in the V-CSN.

[74] As shown in Figure 4, when the terminal enters the network, the HA assigned to it by the network is located in V-CSN, and HA is PCC through the interface set up with V-PCRF.

Passing of Rules, namely: H-PCRF authorization and generation of PCC

The Rules are sent to the V-PCRF, and the V-PCRF can further decide and authorize according to the local policy (possibly cutting the PCC Rules), and then the final authorized PCC The Rules are sent to the ASN's policy charging enforcement entity PCEF, and the PCC will be sent to the PCC.

Rules are sent to the HA for HA as the basis for performing policy charging operations.

[75] Application Scenario 2

[76] In this application scenario, the HA is located in the H-CSN, and likewise the HA chooses to obtain the PCC Rules from the V-PCRF in the V-CSN.

[77] As shown in FIG. 5, when the terminal enters the network, the HA allocated by the network is located in the H-CSN, and the PCC Rules obtained by the HA and the PCC obtained by the policy charging execution entity PCEF located in the ASN are obtained.

The Rules are consistent and HA still chooses to obtain PCC Rules from the V-PCRF.

[78] In this application scenario, since the V-PCRF needs to be the final PCC

The Rules are sent directly to the HA located in the H-CSN, so the V-PCRF needs to know the address of the HA.

[79] Application Scenario 3

[80] In this application scenario, the HA is located in the H-CSN, and the HA chooses to obtain the PCC Rules from the H-PCRF in the H-CSN.

[81] As shown in Figure 6, the generated PCC will be authorized in the H-PCRF.

The rules are sent to the peers of the V-PCRF, and the PCC Rules are also sent to the HA.

[82] Application Scenario 4

[83] Similar to the application scenario 3, in this application scenario, the HA is still located in the H-CSN, and the HA still selects to obtain the PCC from the H-PCRF in the H-CSN.

Rules, however, in this application scenario, the corresponding PCC Rules are directly sent by the H-PCRF in the H-CSN to the policy charging execution entity PCEF in the ASN.

[84] As shown in FIG. 7, specifically: when the HA is located in the H-CSN, the service plane data is directly transmitted by the ASN to the HA located in the H-CSN, and does not pass through any V-CSN service plane entity, and吋, the PCC Rules will be sent directly to the Policy Charging Enforcement Entity PCEF in the ASN by the H-PCRF without V-PCRF.

[85] In this application scenario, the policy charging control system is simplified, and the policy charging entity PCEF in the HA and ASN can be used to consistent PCC Ruleso.

[86] Based on the above various application scenarios, the implementation process of policy charging control in different application scenarios will be described below. [87] (1) In the application scenario 1 and the application scenario 2, the policy charging control process triggered by the policy charging control entity PCRF.

[88] In the application scenario 1 and the application scenario 2, since the HA always obtains the PCC from the V-PCRF

Rules, thus ensuring the PCC as the policy charging enforcement entity HA and the policy charging execution entity located in the ASN

Consistency between Rules; In addition, in the process of V-PCRF performing service triggering, it may not need to interact with H-PCRF, but only locally (such as free service, etc.), that is, all V-PCRF and H are omitted. - the interaction process of PCR F and H-AAA, generating PCC Rules directly from the V-PCRF, and transmitting the PCC Rules;

[89] Obtaining the PCC from H-PCRF by V-PCRF

For example, as shown in Figure 8, the specific policy charging control process includes the following steps:

[90] Step 1: The V-PCRF initiates a PCC Rules request to the H-PCRF;

[91] That is, the H-PCRF or the V-PCRF initiates a PCC Rules configuration process for the IP-CAN Session of the terminal based on the requirements of the application server AF or the requirements of the own policy; the configuration process may include: creation, modification, and / or delete; where, for PCC triggered by V-PCRF

During the rules configuration process, the V-PCRF first needs to initiate a PCC Rules request process to the H-PCRF;

[92] Step 2, Step 3: The H-PCRF requests the user subscription information from the H-AAA. The H-AAA informs the H-PCRF user of the subscription information, and informs the terminal of the current IP-CAN.

Whether the HA corresponding to the Session is located in the H-CSN or in the V-CSN (if the HA is indicated as Home or Visited)

[93] Where, if H-AAA knows the address of HA, it can also inform H-P of the address of the HA at the same time.

CRF, or, only inform the H-PCRF of the address of the HA;

[94] Step 4: H-PCRF saves the IP-CAN

At least one of the location of the HA associated with the session and the address of the HA, and performing policy decision processing according to the user subscription information and its own policy requirements, authorizing and generating the corresponding PCC Rules;

[95] Step 5: H-PCRF will generate PCC

The Rules are sent to the V-PCRF, and at the same time, the V-PCRF is also informed of at least one of the current HA location and the HA address; [96] Step 6: After the V-PCRF receives the PCC Rules, save the terminal to the IP-CAN

At least one of the location of the HA associated with the session and the address of the HA, and further authorizing and modifying the PCC Rules according to the local policy;

[97] Optionally, in this step, the P CC Rules may be further reduced according to network resources and/or policies of the local transmission network;

[98] Step 7, Step 8: V-PCRF will eventually authorize PCC

The rules are sent to the policy charging execution entity in the ASN where the terminal is located, and the final authorized PCC Rules are sent to the HA according to the location of the HA (optionally including the address information of the HA);

[99] Step 9: The policy billing execution entity in the HA saves the corresponding PCC

Rules, and return the configuration result to the V-PCRF, that is, the PCC Rules confirmation message;

[100] Step 10, Step 11: In the ASN network, it will be based on PCC

Rules require that the IP-CAN bearer be created, modified or deleted, and the configuration result returned to the V-PCRF, ie PC

C Rules confirmation message;

[101] Step 12: The V-PCRF saves the corresponding PCC Rules according to the returned result, and returns the PCC Rules configuration result to the H-PCRF;

[102] Optionally, the final authorized PCC of the V-PCRF may also be used in this step.

Rules tell H-PCRF to save the corresponding PCC by H-PCRF

Rules, the consistency of the PCC Rules of H-PCRF and V-PCRF has been guaranteed.

[103] (2) In the application scenario 3 and the application scenario 4, the policy charging control process triggered by the policy charging control entity PCRF or the policy charging execution entity.

[104] In the application scenario 3 and the application scenario 4, the corresponding policy charging control process will be specifically described for the three embodiments.

[105] Embodiment 1

[106] In this embodiment, the policy charging control entity PCRF triggers the corresponding policy charging control process, and the HA always obtains the PCC Rules from the H-PCRF.

[107] As shown in FIG. 9, the specific policy charging control process of Embodiment 1 includes the following steps:

[108] Step 1: H-PCRF is based on the requirements of the application server AF or the requirements of its own policy or the request of V-PCRF

, initiating a PCC Rules configuration process for the IP-CAN Session of the terminal; [109] The configuration process may include: creating, modifying, and/or deleting PCC Rules;

[110] Step 2, Step 3: The H-PCRF requests the user subscription information from the H-AAA. The H-AAA informs the H-PCRF user of the subscription information, and also informs the terminal of the current IP-CAN.

The location of the HA corresponding to the Session (such as Home or Visited);

[111] In this step, if H-AAA knows the address of HA, it can also inform H-PCR of the address of the same HA.

F, or only inform the H-PCRF of the address of the HA;

[112] Step 4: H-PCRF saves the IP-CAN

Session-related HA location and / or HA address, and perform policy decisions based on user subscription information and its own policy requirements, authorize and generate PCC Rules;

[113] Step 5: H-PCRF will generate PCC

The same rules that the Rules send to the V-PCRF, and also inform the current HA location and / or HA address;

[114] Step 6. Step 7: The H-PCRF will authorize the PCC based on the location of the HA and/or the address of the HA.

Rules are sent to HA, saved by HA and responded to PCC Rules configuration results;

[115] Step 8: After the V-PCRF receives the PCC Rules, save the terminal to the IP-CAN.

Session-related HA location and / or HA address, further authorization and modification of PCC according to local policy

Rules , for example , can further reduce PCC Rules according to the network resources and policies of the local transmission network;

[116] Step 9: V-PCRF will eventually authorize PCC

Rules are sent to the policy charging execution entity in the ASN where the terminal is located;

[117] Step 10, Step 11: According to PCC within the ASN network

The Rules request to create, modify or delete the IP-CAN bearer, and the corresponding policy-based execution entity in the ASN saves the corresponding PCC Rules and returns the configuration result to the V-PCRF.

[118] Step 12: V-PCRF saves the corresponding PCC based on the returned results

Rules and return PCC to H-PCRF

The peer of the Rules configuration result, optionally, the final authorized PCC of the V-PCRF

The Rules informs the H-PCRF that the H-PCRF saves the corresponding PCC Rules- [119] In this embodiment, the above steps 6 and 7 can also be performed after the step 12, so that the policy charging execution at the HA can be guaranteed. The entity and the PCC Rules held by the policy charging enforcement entity located in the ASN. [120] Example 2

[121] In the second embodiment, the policy charging execution entity PCEF triggers the corresponding policy charging control process, and the HA still obtains the PCC Rules from the H-PCRF.

[122] As shown in FIG. 10, the corresponding policy charging control process specifically includes the following steps:

[123] Step 1: HA as a policy enforcement entity or a policy enforcement entity located within the ASN according to the terminal IP-CA

The bearer requirement of the N Session triggers the PCC related to the IP-CAN Session.

Rules configuration process; the configuration process may include: PCC

Creation, modification, and/or deletion of Rules;

[124] Step 2: As the policy charging enforcement entity PCEF HA or the policy enforcement entity located in the ASN will IP-C

AN

The bearer requirement of the session is notified to the H-PCRF; if it is triggered by the policy enforcement entity in the ASN, the request is also sent to the H-PCRF through the V-PCRF;

[125] Step 3 to Step 11, the H-PCRF obtains the corresponding user subscription information from the H-AAA to obtain whether to use the indication of the PCEF located in the HA, and the location of the HA and/or the address of the HA, and inform the V- PCRF, H-PCRF also generates corresponding PCC Rules for the PCC

The processing of the sending operation of the rules may be the same as the processing of the steps 2 to 10 in the first embodiment, and will not be described in detail herein.

[126] Embodiment 3

[127] The third embodiment is still the policy charging control process triggered by the policy charging execution entity PCEF, and the HA always obtains the PCC Rules from the V-PCRF.

[128] As shown in FIG. 11, the corresponding policy charging control process specifically includes the following steps:

[129] Step 1 or Step Γ : The policy charging enforcement entity PCEF located in the HA or ASN is based on the terminal IP-CAN

The bearer requirement of the Session triggers the PCC related to the IP-CAN Session

The configuration process of the rules may include: PCC

Creation, modification, and/or deletion of Rules;

[130] Step 2 or Step 2', and Step 3: The Policy Charging Enforcement Entity PCEF located in the HA or ASN will IP-C

The bearer requirement of the AN Session is notified to the V-PCRF, and is sent from the V-PCRF to the H-PCRF;

[131] Step 4 to Step 11: Whether the H-PCRF obtains the corresponding user subscription information from the H-AAA to obtain the same Using the indication of the PCEF located in the HA, and the location of the HA and/or the address of the HA, and informing the V-PCRF, the H-PCRF also generates the corresponding PCC Rules for the PCC

[132] In the third embodiment, step 8 may also occur after step 2 or step 2', before step 3, that is, by V first.

- The PCRF authorizes and reduces the policy charging requirement. Then, it is sent to the H-PCRF through step 3, and the PCC Rules are generated by the H-PCRF authorization. Thus, the PCC finally saved on the H-PCRF and the V-PCRF can be guaranteed.

Consistency of Rules.

[133] Embodiment 4

[134] The fourth embodiment is a policy charging control process triggered by the PCEF located in the HA, and the H/V-PCRF obtains the location information of the PCEF located in the CSN; wherein, whether the policy information of the PCEF is used by the H-PCRF or P DF's own policy decision or H-PCRF is obtained from H-AAA.

[135] As shown in FIG. 12, the corresponding policy charging control process specifically includes the following steps:

[136] Step 1: The HA receives the mobile IP registration request message;

[137] Step 2: HA informs H-AAA whether it has PCEF capabilities and requests a policy;

[138] Step 3: The H-AAA sends a message to the HA that uses the policy of the PCEF located in the HA;

[139] Step 4: If HA is aware of the requirement to use its PCEF, trigger this PCEF to request PCC Rules from the H-PCRF via the Policy Distribution Entity PDF;

[140] If the HA is located on the visited CSN network, the PDF must also go through the V-PCRF and request the PCC from the H-PCRF.

Ruleso PDF and/or H/V-PCRF are thus informed of the PCEF information located in HA;

[141] Step 5: H-PCRF saves the IP-CAN

Session-related HA location and / or HA address and whether to use the policy information of PCEF located in HA, and perform policy decisions based on user subscription information and its own policy requirements, authorize and generate PCC

Rules;

[142] Step 6: The H-PCRF will authorize the PCC based on the location of the HA and/or the address of the HA.

The Rules are sent to the HA via PDF; if the HA is in the V-CSN, the H-PCRF needs to send the PCC Rules to the PDF via V-PCRF and send it to the HA;

[143] Step 7: After receiving the PCC Rules, the HA saves the PCC Rules and replies with the Mobile IP Registration Response message. In the embodiment of the present invention, since the Gx interface between the PCRF entity and the PCEF entity does not support mobility, and the policy enforcement entity in the same ASN migrates, the VP is further provided on the basis of the foregoing embodiment. The process of distributing PCC Rules between CRF and policy enforcement entities.

[145] In order to shield the mobility of the policy enforcement entity within the ASN, a Proxy-PCEF (Proxy PCEF) needs to be added between the V-PCRF and the policy enforcement entity as a policy distribution entity, and the Proxy-P CEF is With the function of policy distribution, it also has the function of interface conversion.

[146] The following describes the Proxy-PCEF in the CSN and the ASN, respectively, with different processing functions.

[147] (1) Proxy-PCEF is located in CSN

[148] PCC between V-PCRF and policy enforcement within ASN

The distribution process of Rules is distributed through this proxy-PCEF as an intermediary;

[149] Similarly, if HA is considered as one of the policy enforcement points, if HA is at home in the above embodiment, the PCC RULES of H-PCRF is also passed through h-Proxy.

The PCEF is distributed to the HA; if the HA is in the visited place, the PCC of the V-PCRF

RULES is also distributed to HA via v-Proxy PCEF;

[150] (2) Prxoy-PCEF is located in the ASN

[151] On the one hand, it can exist as an independent network element entity, or it can be located in the NAP or a specific ASN in the ASN.

Implemented in the GW, there is only one or a few such entities in a NAP or an ASN to serve all terminals in the NAP or ASN;

[152] On the other hand, Prxoy-PCEF can be located at each ASN

The functional entity on the GW, this Proxy-PCEF is terminal-based, and the Proxy-PCEF of each terminal may be located on a different ASN GW. The anchoring Proxy-PCEF of the terminal is the ASN GW of the terminal access network, which can be followed by the terminal anchor.

The authenticator migrates or migrates with the anchor DPF or anchor SFA of the terminal.

[153] Moreover, the PCC between the V-PCRF and the policy executive within the ASN

The RULES distribution process is distributed through this Proxy-PCEF as an intermediary; [154] Similarly, if HA is considered as one of the policy enforcement points, the distribution manner between the PCRC and the PCC execution point where the HA is located in the above embodiment remains.

The embodiment of the present invention further provides a system for implementing policy charging control in a wireless communication system, and the specific implementation structure thereof is as shown in FIG. 13, and includes:

[156] (1) The assigned entity of the policy charging enforcement entity

[157] It is used to send information about the first policy charging execution entity in the connection service network allocated to the currently accessed terminal to the policy charging decision entity of the home location, for example, the allocation of the policy charging execution entity The entity can be an AAA server, or a home contract server HSS, or a subscription information database S

PR and so on.

[158] The allocating entity device of the policy charging enforcement entity may include:

[159] an allocation processing unit, configured to allocate, to the currently accessed terminal device, a first policy charging execution entity located in the connection service network;

[160] The first information delivery unit is configured to send information about the first policy charging execution entity allocated by the allocation processing unit to the policy charging decision entity.

[161] (2) Policy charging decision entity

[162] It is used to obtain information of the first policy charging execution entity sent by the allocation entity of the policy charging execution entity, and send the determined policy charging rule to the first policy charging executing entity and located Accessing a second policy charging execution entity in the service network;

[163] In the system, the policy charging decision entity may include a policy charging decision entity of the home location and a policy charging decision entity of the visited place, and correspondingly send the determined policy charging rule to the The processing procedure of the first policy charging execution entity and the second policy charging execution entity located in the access service network may specifically adopt any one of the following implementation manners:

[164] Method 1: The policy charging decision entity of the home location sends the policy charging rule to the first policy charging execution entity and the second policy charging executing entity directly or through the policy distribution entity; and the policy distribution entity It may be set independently or may be set in the same device as the first policy charging execution entity;

[165] Method 2: The policy charging decision entity of the visited place sends the policy charging rule to the first policy charging executing entity directly or through the policy distribution entity, or sends the first policy charging executing entity and the second policy to the first policy Billing execution entity; [166] Method 3: The policy charging decision entity of the home location sends the policy charging rule to the policy charging decision entity of the visited place, and is processed by the policy charging decision entity of the visited place and sent to the first policy meter. The fee execution entity, or sent to the first policy charging execution entity and the second policy charging execution entity, where the first policy charging execution entity is located in the connected service network of the visited place or in the connected service network of the home place .

[167] Method 4: The policy charging decision entity of the home location sends the policy charging rule to the policy charging decision entity of the visited place and the first policy charging executing entity, and the policy charging decision entity of the visited place And performing the reduction processing on the policy charging rule, and sending the policy to the second policy charging execution entity;

[168] Method 5: The policy charging decision entity of the home location sends the policy charging rule to the policy charging decision entity of the visited place, and the policy charging decision entity of the visited place performs the policy charging rule After the reduction process is sent to the second policy charging execution entity and the policy charging decision entity of the home location, the policy decision entity of the home location sends the policy charging rule processed by the policy charging decision entity of the visited place to the Describe the first policy charging execution entity;

[169] Still referring to FIG. 13, the specific implementation structure of the policy charging decision entity may include the following processing units:

[170] an information receiving unit, configured to receive information about a first policy charging execution entity allocated by the allocation entity of the policy charging execution entity for the current access terminal;

[171] The policy charging rule sending unit is configured to send the policy charging rule to the first policy charging executing entity according to the information of the first policy charging executing entity received by the information receiving unit.

[172] In the policy charging decision entity, an interface that communicates with the allocation entity of the first policy charging execution entity or the second policy charging execution entity may be further configured, and the information receiving unit acquires the first interface through the interface. The information of the policy charging execution entity; or the interface that communicates with the first policy charging execution entity directly or through the policy distribution entity, where the information receiving unit charges from the first policy through the interface The execution entity sends the registration information to obtain the information of the first policy charging execution entity; or the entity is further provided with an interface that communicates with other policy charging decision entities, and the information receiving unit uses other policies to make charging decisions from the interface. The entity obtains information of the first policy charging execution entity.

[173] Optionally, the entity may further include a first policy charging rule delivery unit and a policy charging rule processing unit, where: [174] The first policy charging rule delivery unit is configured to send a policy charging rule to the policy charging decision entity of the visited place at the device as the policy charging decision entity device of the home location;

[175] The policy charging rule processing unit is configured to: when the device acts as a policy charging decision entity device of the visited place, the policy charging rule sent by the policy charging decision entity of the home location is based on the local policy and / or network resources for the cut operation.

[176] Optionally, the method for transmitting the policy charging rule between the policy charging entity and the policy charging decision entity of the visited location, the entity may further include a second policy charging rule delivery unit, where The device acts as the policy charging decision entity device of the visited place, and sends the policy charging rule to the policy charging decision entity of the home location by the policy charging rule processing unit.

[177] Optionally, in order to ensure that the policy charging decision entity of the visited location may obtain information (such as location and/or address information) of the first policy charging execution entity, the entity may further include a second The information transfer unit is configured to send the information of the first policy charging execution entity acquired by the information receiving unit to the policy charging decision entity of the visited location, where the device is used as the policy charging entity device of the home location, so as to facilitate The policy charging decision entity of the visited place may send the policy charging rule to the first policy charging executing entity.

[178] Optionally, in the system, if the second policy charging execution entity is a mobile entity, the system further includes a proxy policy charging execution entity, and the second policy The charging execution entity acquires the policy charging rule by using a proxy policy charging execution entity set in the access service network to shield the mobility of the policy charging executing entity in the access service network.

[179] Optionally, in the system, the first policy charging execution entity may specifically but not limited to being located in a home agent or packet data network gateway for a mobile internet protocol; Specifically, but not limited to, it is located in an access network gateway or a base station.

[180] In summary, the embodiment of the present invention provides an implementation scheme for policy charging control of a wireless communication network in a roaming scenario, in which the policy charging control system can know the result of HA dynamic allocation, and the HA can The correct policy charging rule is obtained. In addition, the embodiment provided by the present invention can also ensure that each policy charging rule decision point is consistent with the policy charging rule of the policy charging execution point.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary hardware platform, and of course, all can be implemented by hardware, but In many cases the former is a better implementation. Based on such understanding, all or part of the technical solution of the present invention contributing to the background art may be embodied in the form of a software product, which may be stored in a storage medium such as a ROM/RAM, a magnetic disk, an optical disk, or the like. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention or portions of the embodiments.

The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or within the technical scope disclosed by the present invention. Alternatives are intended to be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

Claim

[1] A method for implementing policy charging control in a wireless communication system, comprising: a policy charging decision entity acquiring information of a first policy charging executing entity;

[2] The method according to claim 1, wherein the policy charging decision entity acquires the first policy charging execution from the allocation entity of the policy charging execution entity or the second policy charging execution entity. Or the policy charging decision entity receives the information directly sent by the first policy charging execution entity and obtains information of the first policy charging executing entity; or the policy charging decision entity receives The first policy charging execution entity distributes registration information sent by the entity through the policy, and obtains information of the first policy charging execution entity from the registration information; or the policy charging decision entity from other policies The charging decision entity acquires information of the first policy charging execution entity.

[3] The method according to claim 2, wherein before the registering with the policy charging decision entity, the first policy enforcement entity further includes:

The first policy charging enforcement entity obtains an indication from the allocating entity of the policy charging enforcement entity whether to use the first policy enforcement entity.

[4] The method according to claim 1, 2 or 3, wherein, if the policy charging decision entity is a policy charging decision entity at the home location, the policy charging decision entity at the home location Acquiring the information of the first policy charging execution entity directly from the allocation entity of the first policy charging execution entity; if the policy charging decision entity is the policy charging decision entity of the visited place, the policy of the visited place The fee decision entity obtains the information of the first policy charging execution entity from the allocation entity of the first policy charging execution entity by the policy charging decision entity of the home location.

[5] The method according to claim 4, wherein the allocation entity of the first policy charging execution entity comprises: an authentication authentication charging AAA server, or a home contracting server HSS, or signing a contract Information database SPR.

[6] 6. The method according to claim 1, 2 or 3, wherein the first policy charging The information of the execution entity includes: whether to use at least one of an indication of the first policy charging execution entity, a location of the first policy charging execution entity, an identifier, a domain name, and an address, where the location refers to the attribution or Visiting the place.

The method according to claim 1, 2 or 3, wherein the first policy charging execution entity is located in a visited network or a home network, and the policy charging decision entity sends The policy charging rules specifically include:

The policy charging decision entity of the home location sends the policy charging rule to the first policy charging executing entity, or the first policy charging executing entity and the second policy charging executing entity, directly or through the policy distributing entity;

Or,

The policy charging decision entity of the visited place sends the policy charging rule to the first policy charging executing entity, or the first policy charging executing entity and the second policy charging executing entity, directly or through the policy distribution entity;

Or,

The policy charging decision entity of the home location sends the policy charging rule to the policy charging decision entity of the visited place, and is processed by the policy charging decision entity of the visited network according to the network resource and/or policy of the transmission network. Sending to the first policy charging execution entity, or sending to the first policy charging executing entity and the second policy charging executing entity;

Or,

The policy charging decision entity of the home location sends the policy charging rule to the policy charging decision entity of the visited place and the first policy charging executing entity, and the policy charging decision entity of the visited place according to the network resource of the transmission network And/or the policy, after the policy charging rule is cut, sent to the second policy charging execution entity;

Or,

The policy charging decision entity of the home location sends the policy charging rule to the policy charging decision entity of the visited place, and the policy charging decision entity of the visited place pairs the policy according to the network resource and/or policy of the transmission network. After the charging rule is cut, the policy is sent to the second policy charging execution entity and the policy charging decision entity of the home location, and the policy decision entity of the home location is determined by the visited location. The policy charging rule processed by the slightly charging decision entity is sent to the first policy charging execution entity

[8] 8. The method according to claim 7, wherein if the second policy charging execution entity is a movable entity, the second policy charging execution entity is configured to be connected. The proxy policy charging execution entity in the network obtains the policy charging rule.

[9] The method according to claim 7, wherein before the sending the policy charging rule by the policy charging decision entity, the method further comprises:

The policy decision entity receives the request for acquiring the policy charging rule sent by the first policy charging execution entity or the second policy charging executing entity; or

The policy decision entity determines that the policy charging rule needs to be sent to the first policy charging enforcement entity or the second policy charging enforcement entity; or

The policy decision entity of the home location receives the request from the policy decision entity of the visited place to obtain the policy charging rule.

[10] The method according to claim 1, 2 or 3, wherein the policy charging rule determined by the policy charging decision entity comprises: a quality of service policy and/or a charging policy.

[11] 11. The method according to claim 1, 2 or 3, wherein the first policy charging execution entity is located in a home agent or packet data network gateway for a mobile internet protocol; The second policy charging enforcement entity is located in the access network gateway or base station.

[12] 12. An allocation entity of a policy charging execution entity, comprising:

An allocation processing unit, configured to allocate a corresponding first policy charging execution entity to the currently accessed terminal device;

And a first information delivery unit, configured to send information about the first policy charging execution entity allocated by the allocation processing unit to the policy charging decision entity.

[13] 13. A policy charging decision entity, characterized in that:

a policy charging rule sending unit, configured to send the policy charging rule to the first policy charging executing entity according to the information of the first policy charging executing entity received by the information receiving unit, or send the a first policy charging enforcement entity and a second policy charging set in the access network Execution entity.

[14] 14. The entity according to claim 13, wherein the entity is further provided with an interface for communicating with an allocation entity of the first policy charging execution entity or a second policy charging execution entity, the information receiving The unit obtains the information of the first policy charging execution entity through the interface; or the entity is further configured with an interface that communicates with the first policy charging execution entity directly or through the policy distribution entity, and the information receiving unit passes the interface Obtaining information of the first policy charging execution entity from the registration information sent by the first policy charging execution entity; or, the entity is further configured with an interface that communicates with other policy charging decision entities, where the information receiving unit passes The interface obtains information of the first policy charging execution entity from other policy charging decision entities.

[15] The entity of claim 13, wherein the entity further comprises:

The first policy charging rule delivery unit is configured to send a policy charging rule to the policy charging decision entity of the visited place after the device acts as a policy charging entity device of the home location.

[16] 16. The entity according to claim 13, 14, or 15, wherein the entity further comprises:

The policy charging rule processing unit is configured to: after the device acts as a policy charging decision entity device of the visited place, the policy charging rule sent by the policy charging decision entity of the home location is cut according to the local policy and/or the network resource. Processing operation

a second policy charging rule delivery unit, configured to send, by the policy charging policy entity, the policy charging rule processing unit, after the policy charging rule processing unit, the policy charging rule to the home location Fee decision entity.

[17] 17. The entity according to claim 13, 14, or 15, wherein the entity further comprises:

And a second information transmission unit, configured to send the information of the first policy charging execution entity acquired by the information receiving unit to the policy charging decision entity of the visited place, where the device is the policy charging decision entity device of the home location.

[18] 18. A system for implementing policy charging control in a wireless communication system, comprising: an allocation entity of a policy charging execution entity, configured to allocate a first policy charging execution entity to a currently accessed terminal. And transmitting the information of the first policy charging entity to the policy of the home location Policy entity

a policy charging decision entity, configured to acquire information about the first policy charging execution entity, and send the policy charging rule determined by the first policy charging execution entity to the first policy charging executing entity, or send the setting to different The first policy charging execution entity and the second policy charging execution entity of the location

[19] 19. The system according to claim 18, wherein the first policy charging execution entity is located in a home agent or packet data network gateway for a mobile internet protocol; and the second policy charging execution entity Located in the access network gateway or base station.