WO2007140701A1

WO2007140701A1 - Network offline charging system and method and network online charging system and method

Info

Publication number: WO2007140701A1
Application number: PCT/CN2007/001630
Authority: WO
Inventors: Haiyan Jian; Leibin Wang
Original assignee: Huawei Technologies Co., Ltd
Priority date: 2006-06-09
Filing date: 2007-05-18
Publication date: 2007-12-13
Also published as: CN100484009C; CN1983938A

Abstract

Network offline charging system and method, and network online charging system and method. The network offline charging method includes network element creating the first offline charging request with the location information for determining the location of users, and sending the first offline charging request to the charging collecting functional entity. The charging collecting functional entity creates the second offline charging request with the location information according to the first offline charging request, and sends the second offline charging request to the charging field. The charging field recognizes the location information inthe second offline request, determines the location of user according to the location information and performs the corresponding charging process. The related charging strategies are employed according to location information of users, visited network identity information by making the charging request carrying the information.

Description

Network offline charging system and method, and network online charging system and method

The present invention relates to the field of communications, and in particular, to a network offline charging system and method, and a network online charging system and method. Background technique

The IP Multimedia Subsystem (IMS) is a subsystem superimposed on the existing packet domain in the WCDMA network added in the 3GPP R5 phase. The packet domain is used as the bearer channel for the upper layer control signaling and media transmission. The Session Initiation Protocol (SIP) is introduced as a service control protocol. The SIP is simple, easy to expand, and convenient for media combination. It provides a rich multimedia service by separating the service control from the bearer control. The main The function entity includes a Call Session Control Function (CSCF) that controls functions such as user registration and session control, and a Home Subscriber Server (HSS) that centrally manages user subscription data, and provides various service logic control functions. The Application Server (AS), and the Charging Collection Function (CCF) for offline charging and the Online Charging System (OCS) for online charging.

The charging related system architecture defined in the 3GPP standard is shown in Figure 1. The function of the Charging Gateway Function (CGF) is:

1. Receive a CDR (Charging Data Record) from a Charging Data Function (CDF) through the Ga interface.

2. CDR preprocessing

(1) verification, merging and CDR format processing

(2) CDR error handling

(3) CDR preservation

3. CDR routing and filtering, and storing the CDR in the classified file according to the filtering rule, where the filtering rule may include: a CDR type, a CDR parameter, a CDF that generates a CDR, and the like. 4. CDR file management, including: file creation, file open/close trigger, file deletion.

5. The CDR file is transferred to the billing domain BD.

Among them, the function of CDF is:

1. Construct a CDR based on a single charging event.

2. Construct a CDR based on a collection of several charging events.

3. Each billing event is for a certain CDR.

4. Multiple billing events used to create a CDR do not have to be of the same type.

5. There is no necessary synchronization relationship between receiving the charging event and creating the CDR. Of course, the CDF will receive and process billing events in a near real-time manner and generate CDRs.

6. There may be a one-to-one or one-to-many relationship between the CDF and the CTF (Charging Trigger Function).

7. All accounting events used to construct a CDR must originate from the same network element (NE).

The charging function of the OCS is: 1. Online charging function; 2. Rate function; 3. Account management function.

The process of offline charging by the IMS network element described in the 3GPP standard in the process of processing a service is as follows. The offline charging request sending process of the user is shown in Figure 2. After the network element collects the charging information, the offline charging request is sent to the CDF/CGF. The offline charging request does not include the positioning information, and the CDF/CGF is received. After the offline charging request is received, the network element is responded, and the offline charging response is sent to the network element.

The offline charging request sending process is shown in Figure 3. When the service processing reaches the charging trigger point (S302), it is determined whether offline charging is performed (S304), and if offline charging needs to be performed, collecting charging service information is started (S306), and the offline charging request is sent to the charging trigger. The functional entity or charging gateway function entity (S308), and then continues the business process (S310). If offline charging is not required to be performed, the business process is continued (S310). In S306, information such as the user location, the visited network identifier, and the like are not collected, and in S308, the offline charging request does not include the free information. If the user's online charging request does not respond or returns a failure response, the SIP AS can no longer continue the original session because it is impossible to distinguish whether the user has already billed. In the 3GPP standard, the interface between the CDF (CGF/CCF) and the service network element CSCF is defined as an Rf interface for the offline charging function. The interface message is:

The process of online charging by the IMS network element in the process of processing the service is as shown in FIG. 4 and FIG. 5, and includes the following steps:

S402. The network element performs a service request of the user.

S404, the network element sends an online charging request to the online charging system (OCS). As shown in FIG. 5, the network element sends an online charging request (OCR) to the online charging. The system, where the online charging request does not include positioning information for determining a location of the user. The online charging system responds after receiving the online charging request, and sends an online charging response to the network element.

S406. The network element performs a service delivery of the user.

S408. The network element sends an online charging deduction/authorization request to the online charging system.

S410. During the service delivery process, the network element sends an online charging deduction/authorization request to the online charging system.

S412. The network element performs termination of the user's service.

S414. The network element sends offline charging information to the CDF/CGF.

The online charging request sending process of the user is as shown in FIG. 5. After the network element collects the charging information, the online charging request is sent to the OCS, where the online charging request does not include the positioning information, and the OCS receives the online charging. After the request, the network element responds and sends an online charging response to the network element.

In the IMS network, for fixed users, it is mainly through IMPI/IMPU (IMS private user Identity/IMS Public User Identity, IMS Private User Identity/IMS Public User Identity). The user is charged, so that when the user's location changes, the billing can only be performed in the same way, and the billing difference cannot be reflected after the user's location changes. As shown in FIG. 6, in the IMS network, the area A and the area B have different charging standards (the charging method 1 and the charging method 2), for example, the charging rate is different, the charging period is different, and the like. In the current charging mode, after the user registers with the area A, the user can only charge the user according to the charging mode 1. When the user's UE location changes, the area A changes to the area B, because there is no user in the charging information. If the location or the network identifier is visited, the accounting system cannot know the user's access network information. Therefore, the charging method is still performed according to the charging method 1. Therefore, the charging standard of the area B is not met, and the user cannot be correctly charged. .

In summary, in the current IMS network, the charging request does not carry the access network information and the visited network identification information, and the charging system cannot implement the relevant charging policy according to the access network information of the user, such as Users at different locations use different rates, use different billing periods, etc., which may cause inaccurate billing information. Summary of the invention

Embodiments of the present invention provide a network offline charging system and method, and a network online charging system and method, which can perform different charging processing on a user according to a user's location.

The network offline charging system of the embodiment of the present invention is used in an IP multimedia subsystem. The network charging system of the embodiment of the present invention includes: a first offline charging request generating device, located at a network element side, configured to generate a first offline charging request including positioning information for determining a location of the user, and to perform the first offline The charging request is sent to the second offline charging request generating device, and the second offline charging request generating device is located in the charging collecting function entity, and configured to generate a second offline charging request including the positioning information according to the first offline charging request. And will leave the second. The line charging request is sent to the charging request processing device; and the charging request processing device is located on the charging domain side, and is configured to determine the location of the user and perform corresponding calculation after identifying the positioning information in the second offline charging request Fee processing.

The network offline charging method of the embodiment of the present invention is used in an IP multimedia subsystem, and the method includes the following steps: The network element generates a first offline charging request that includes positioning information for determining a location of the user, and sends the first offline charging request. To the billing collection function entity; The charging collection function entity generates a second offline charging request including positioning information according to the first offline charging request, and sends the second offline charging request to the charging domain;

The charging domain identifies the location information in the second offline charging request, and determines the location of the user based on the location information and performs corresponding charging processing.

The network online charging system of the embodiment of the present invention is used in an IP multimedia subsystem, and includes: an online charging request generating device, located at a network element side, configured to generate an online charging request including positioning information for determining a location of the user. And sending the first charging request to the online charging request processing device; the online charging request processing device is located at the online charging system side, and configured to determine the location of the user after identifying the positioning information in the online charging request And performing corresponding charging processing, and instructing the network element to perform corresponding service processing.

The network online charging method of the embodiment of the present invention is used for the IP multimedia subsystem, and the method includes the following steps: The network element generates an online charging request including positioning information for determining a location of the user, and sends the online charging request to the online charging. System;

The online charging system identifies the location information in the online charging request, and determines the location of the user according to the location information, performs corresponding charging processing, and instructs the network element to perform corresponding service processing.

The embodiment of the present invention can determine the location of the user by identifying the access network information and the visited network identification information carried in the charging request, and execute the corresponding charging policy, so that the user can be more flexibly charged. DRAWINGS

The accompanying drawings illustrate the embodiments of the invention, and the claims In the accompanying drawings, FIG. 1 is a block diagram of a system architecture related to billing according to the prior art;

2 is a schematic diagram of a process for performing offline charging by an IMS network element in a process of processing a service according to the prior art;

3 is a flowchart of an offline charging request sending process according to the prior art;

4 is a schematic diagram of an online charging process according to the prior art; FIG. 5 is a schematic diagram of an online charging request sending process according to the prior art; FIG.

6 is a schematic diagram of processing performed after a user's location is changed according to the prior art;

7 is a block diagram of a network offline charging system in accordance with an embodiment of the present invention;

8 is a flowchart of a method for offline charging of a network according to an embodiment of the present invention;

9 is a block diagram of a network online charging system according to an embodiment of the present invention;

FIG. 10 is a flowchart of a method for online charging of a network according to an embodiment of the present invention; FIG.

11 is a schematic diagram of a network offline charging method according to an embodiment of the present invention; FIG. 12 is a schematic diagram of a network offline charging method according to another embodiment of the present invention; FIG. 13 is another embodiment according to the present invention. A schematic diagram of a network offline charging method; and FIG. 14 is a schematic diagram of a network offline charging method according to another embodiment of the present invention. detailed description

Preferred embodiments of the present invention will be described in detail below, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numerals are used for the

7 is a block diagram of a network offline charging system in accordance with an embodiment of the present invention. As shown in FIG. 7, the network offline charging system in the embodiment of the present invention is used in an IP multimedia subsystem, where the network charging system includes: a first offline charging request generating device 702 and a second offline charging request generating device 704. And a billing request processing device 706.

The first offline charging request generating device 702 is located at the network element side, and is configured to generate a first offline charging request including positioning information for determining a location of the user, and send the first offline charging request to the second offline. The billing request generating device 704 is located at the side of the billing collection function entity (including the billing data function entity and the billing gateway function entity), and is configured to generate the location according to the first offline billing request. a second offline charging request of the information, and sending the second offline charging request to the charging request processing device; and the charging request processing device 706, located at the charging domain side, for identifying the second offline charging request After the positioning information in the middle, the location of the user is determined and the corresponding charging processing is performed.

The positioning information includes at least one of the following information: a user access network information and a visited network. Network identification. Users access network information comprises information on at least one of: identifying a user access device is located, frame number, port type, slot number, the sub-slot number, port number, virtual circuit identifier and a cell global identity (Cell Global Identity) ₀ The visited network identifier includes a pre-provisioned string that identifies the visited network.

The first offline charging request generating device includes: an offline user positioning information collecting module, configured to collect positioning information; and a first offline charging request generating module, configured to generate a first offline charging request including the positioning information.

The charging request processing device includes: an offline user location determining module, configured to identify positioning information in the second charging request, and determine a location of the user according to the positioning information; and a charging request processing module, configured to use the location according to the user Perform the corresponding billing process.

The foregoing network element includes: a call session control function entity and a session initiation protocol application server. The session initiation protocol application server may obtain the visited network identifier from at least one of the following: a registration message sent by the call session function entity to the session initiation protocol application server, and a service request message sent by the call session function entity to the session initiation protocol application server.

FIG. 8 is a flowchart of a network offline charging method according to an embodiment of the present invention. The network offline charging method is used in an IP multimedia subsystem according to an embodiment of the present invention, and includes the following steps: Step S802: The network element generation includes determining a user a first offline charging request of the location information of the location, and sending the first offline charging request to the charging collection function entity; Step S804, the charging collection function entity generates a second location including the positioning information according to the first offline charging request Offline charging request, and sending a second offline charging request to the charging domain; and step S806, the charging domain identifies the positioning information in the offline charging request, and determines the location of the user according to the positioning information and performs corresponding calculation Fee processing.

The foregoing positioning information includes at least one of the following information: a user's access network information and a visited network identifier. The access network information of the user includes at least one of the following: an access device identifier, a frame number, a port type, a slot number, a subslot number, a port number, a virtual circuit identifier, and a global identifier of the cell where the user is located. The visited network identifier includes the identifier of the access network of the area in which the user is located.

The foregoing step S802 includes: step S802-2, the network element collects the positioning information; and step S802-4, the network element generates a first offline charging request including the positioning information. The foregoing step S806 includes: Step S806-2, the charging domain identifies the positioning information in the second offline charging request; and in step S806-4, the charging domain determines the location of the user according to the identified positioning information and performs corresponding calculation The fee is processed, and the network element is instructed to perform corresponding business processing.

9 is a block diagram of a network online charging system in accordance with an embodiment of the present invention. As shown in FIG. 9, the network charging method in the embodiment of the present invention is used in an IP multimedia subsystem, and the system includes: an online charging request generating device 902, located on a network element side, configured to generate a location for determining a location of a user. The online charging request of the information, and the first charging request is sent to the online charging request processing device; the online charging request processing device 904 is located at the online charging system side, and is used for identifying the positioning in the online charging request. After the information, the location of the user is determined and the corresponding charging process is performed, and the network element is instructed to perform corresponding service processing.

The location information includes at least one of the following information: a user access network information and a visited network identifier. The access network information of the user includes at least one of the following: an access device identifier, a frame number, a port type, a slot number, a subslot number, a port number, a virtual circuit identifier, and a global identifier of the cell where the user is located. The visited network identifier includes the identifier of the access network of the area in which the user is located.

The online charging request generating device includes: an online user positioning information collecting module, configured to collect positioning information of the user; and an online charging request generating module, configured to generate an online charging request including the positioning information.

The online charging request processing device includes: an online user location determining module, configured to identify positioning information in the online charging request, and determine a location of the user according to the positioning information; and an online charging request processing module, configured to be used according to the user The location performs corresponding charging processing, and instructs the network element to perform corresponding service processing.

The foregoing network element includes: a call session control function entity and a session initiation protocol application server. The session initiation protocol application server may obtain the visited network identifier from at least one of the following messages: The registration function sent by the session function entity to the session initiation protocol application server, and the service request message sent by the call session function entity to the session initiation protocol application server.

FIG. 10 is a flowchart of a method for online charging of a network according to an embodiment of the present invention. As shown in FIG. 10, the network online charging method in the embodiment of the present invention is used in an IP multimedia subsystem, and includes the following steps: Step S1002: The network element generates an online charging request that includes positioning information for determining a location of the user, and The online charging request is sent to the online charging system; and in step S1004, the online charging system identifies the positioning information in the online charging request, and determines the location of the user according to the positioning information, and performs corresponding charging processing.

Step S1002 includes: Step S1002-2, the network element collects positioning information for determining a location of the user; and step S1002-4, the network element generates an online charging request including the positioning information.

Step S1004 includes: Step S1004-2: The online charging system identifies the positioning information in the online charging request; and in step S1004-4, the online charging system determines the location of the user according to the identified positioning information and performs corresponding Billing processing, and instructing the network element to perform corresponding service processing.

The foregoing network element includes: a call session control function entity and a session initiation protocol server. The session initiation protocol application server may obtain the visited network identifier from at least one of the following messages: a registration message sent by the session function entity to the session initiation protocol application server, and a service request message sent by the call session function entity to the session initiation protocol application server.

Embodiment 1

When the IMS network element provides an offline charging request through the Rf interface, the user access network information and the visited network identifier are added to the offline charging request and provided to the offline charging system. After receiving the charging request message, the offline charging system can identify the user's access network information and the visited network identifier, and determine the physical location area where the user is located, and according to the charging policy of the location area. The corresponding billing process is performed for the user, and the business process is as shown in FIG. 11: Step S1102: The IMS network element receives the service request.

Step S1104: a) the network element collects the access network information of the user and the visited network identifier; b) the network element may add the user access network information and the visited network identifier to the charging request message.

Step S1106: The network element sends a charging request message that adds the user access network information and the visited network identifier to the CDF/CGF.

Step S1108: The CDF/CGF generates a CDR according to the charging request message, where the user includes the access network information and the visited network identifier, and sends the charging request message to the charging domain.

Step S1110, a) the charging domain may identify the user's access network information and the visited network identifier from the charging request; b) determine the current physical location of the processing user according to the user's access network information or the visited network identifier. The area, and implements corresponding charging processing for the user according to the charging policy of the current physical location area.

Steps S1112 to S1116: The charging system returns an accounting response message to the IMS network element, and the IMS network element performs corresponding service processing. '

The method can implement a location-based charging policy for the user, so as to ensure that the correct charging process is still performed on the user service when the user location changes, and some location-based locations are avoided due to changes in the user's location. The information service cannot be billed correctly or cannot be billed at all, resulting in the inability to provide users with location-based services.

Embodiment 2

As shown in Fig. 12, after the user UE moves from area A to another area B, the user needs to perform an online game service. Since the location area of the user is different, the charging rate used to provide services for the area A and the area B is different, the rate of the area A is the rate 1 , and the rate of the difference B is the rate 2. In this case, by applying the above invention, the user service can be charged at different rates for different locations where the user UE is located, thereby providing a more reasonable charging policy for the user.

AVP provides the corresponding information for the billing system. Two AVPs are added to the Diameter protocol message: Location-Information AVP and Access-Network-ID AVP to carry the user's access network information and the visited network identifier respectively. The access network information of the user may be the access device identifier of the user. The identification, frame number, port type, slot number, subslot number, port number, virtual circuit identifier, etc., can also be a cell global identifier. The visited network identifier may be the area where the user is located; 1 or the identifier of the access network. The offline charging system can determine the specific physical location where the user is located according to the access network information or the visited network identifier, thereby implementing charging processing based on the location area.

Embodiment 3

The online charging of the S-CSCF (Serving-CSCF, Serving CSCF) processing session is shown in Figure 13. When the user requests the S-CSCF for online charging, the S-CSCF sends an online charging request with positioning information for determining the location of the user to the OCS, and the OCS identifies the positioning information in the online charging request, and according to the identification The location information is determined by the location of the user, and then different charging processes are performed according to the location of the user. The process includes the following steps as shown in Figure 13:

S1302 - S1308: The user initiates a session establishment request and forwards it to the S-CSCF/IMS-GWF through the P-CSCF (Proxy-CSCF, proxy CSCF).

S1314 - S1316: The S-CSCF/IMS-GWF determines that online charging needs to be performed, sends an online charging request (CCR) to the OCS, and the OCS returns a CCA response message, carries the online charging success, and returns 4 authorized call durations.

S1322-S1324: The S-CSCF/IMS-GWF continues to forward the session establishment request to the next hop.

S1326: The S-CSCF/IMS-GWF receives the response of the next hop session establishment request successfully, and starts the online charging monitoring timer of the session according to the authorized call duration returned by the OCS.

S1332 ~ S1344: The S-CSCF/IMS-GWF and the P-CSCF successfully forward the session establishment request in succession. After receiving the response, the user sends a confirmation message, and the P-CSCF and the S-CSCF/IMS-GWF are forwarded to the next. Jump the network element.

S1346 - S1348: During the call, if the SIP AS detects that the reserved call duration timer expires, the SIP AS sends an online charging request to the OCS again, notifies the used call duration and requests a new reservation, and the OCS returns a CCA response. The message, carrying the online charging is successful, and returns the new authorized call duration.

S1350 - S1352: After the user hangs up, it sends a release message to the SIP AS through the P-CSCF and S-CSCF. S1356-S1358: The SIP AS sends an online charging request to the OCS to inform the duration of the call used. S1362 - S1372: The SIP AS continues to release subsequent NEs and returns a successful response to the user. Embodiment 4

As shown in FIG. 14, the Session Initiation Application Server (SIP AS) can obtain the visited network identifier from at least one of the following messages: a registration message sent by the call session function entity to the session initiation protocol application server, And a service request message sent by the call session function entity to the session initiation protocol application server. Then, the SIP AS further generates an online charging request including the positioning information and sends the online charging request to the online charging system. Then, the online charging system can determine the location of the user by identifying the location information in the online charging request, and perform corresponding charging processing. The process includes the following steps as shown in Figure 14:

S1402 ~ S1412: The user initiates a session establishment request, and the P-CSCF forwards the request to the S-CSCF, and the S-CSCF triggers the SIP-AS according to the subscription information. If the registration message sent by the S-CSCF to the SIP AS carries the visited network identifier, At this time, the visited network identifier may not be carried; otherwise, the visited network identifier needs to be carried to the SIP AS.

S1414 - S1416: The S-CSCF/IMS-GWF determines that online charging needs to be performed, sends an online charging request (CCR) to the OCS, and the OCS returns a CCA response message, carries the online charging success, and returns the authorized call duration.

S1418-S1424: The SIP AS and S-CSCF continue to forward requests to the next hop.

S1426 - S1428: The S-CSCF receives the response of the next hop session establishment request successfully, and sends it to the SIP AS. The SIP AS starts the online charging monitoring timer of the session according to the authorized call duration returned by the OCS.

S1430 ~ S1444: The SIP AS and the S-CSCF and the P-CSCF successfully forward the session establishment request in succession. After receiving the response, the user sends a confirmation message, and the P-CSCF and the S-CSCF and the SIP AS are forwarded to the next hop network. yuan.

S1446 - S1448: During the call, if the SIP AS detects that the reserved call duration timer expires, the SIP AS sends the online charging request to the OCS again, notifies the used call duration and requests a new reservation, and the OCS returns to the CCA. In response to the message, carrying the online charging is successful and returns a new one. Authorized call duration.

S1450 - S1454: After the user hangs up, it sends a release message to the SIP AS through the P-CSCF and S-CSCF.

S1456-S1458: The SIP AS sends an online charging request to the OCS to notify the duration of the call. S1460 - S1472: The SIP AS continues to release subsequent NEs and returns a successful response to the user. The embodiment of the present invention can determine the location of the user according to the location information in the charging request, and implement a flexible charging policy for the user, and perform correct charging processing to avoid being incorrect after the user location changes or fails. Billing or billing at all, resulting in a problem that cannot provide services to users.

The above description 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 spirit and scope of the present invention are intended to be included within the scope of the present invention. The spirit and scope of the invention. Therefore, it is intended that the present invention cover the modifications and variations of the invention as claimed.

Claims

Rights request

1. A network offline charging system, comprising:

The first offline charging request generating device is located at the network element side, configured to generate an offline charging request including positioning information for determining a location of the user, and send the first offline charging request to the second offline meter Fee request generating device;

The second offline charging request generating device is located in a charging collection function entity, configured to generate a second offline charging request including the positioning information according to the first offline charging request, and the second offline charging request The offline charging request is sent to the charging request processing device;

The charging request processing device is located on the charging domain side, and is configured to determine the location of the user and perform corresponding charging processing after identifying the positioning information in the second offline charging request.

The network offline charging system according to claim 1, wherein the positioning information comprises at least one of the following: an access network information of the user and a visited network identifier.

The network offline charging system according to claim 2, wherein the access network information of the user includes at least one of the following information: a device identifier, a frame number, a port type, a slot number, and a subroutine where the user is located. Slot number, port number, virtual circuit ID, and cell global ID.

4. The network offline charging system according to claim 2, wherein the visited network identifier comprises an identifier of an access network of a region in which the user is located.

The network offline charging system according to claim 2, wherein the first offline charging request generating device comprises:

An offline user location information collection module, configured to collect the location information;

The first offline charging request generating module is configured to generate a first offline charging request including the positioning information.

The network offline charging system according to claim 2, wherein the charging request processing device comprises:

An offline user location determining module, configured to identify the location information in the second charging request, and determine a location of the user according to the positioning information; The billing request processing module is configured to perform corresponding billing processing according to the location of the user.

The network offline charging system according to any one of claims 1 to 6, wherein the network element comprises: a call session control function entity and a session initiation protocol application server, wherein the session initiation protocol The application server obtains the visited network identifier from at least one of the following messages from the serving call session control function entity S-CSCF: a registration message sent by the call session function entity to the session initiation protocol application server, and the call session function A service request message sent by the entity to the session initiation protocol application server.

8. A network offline charging method, comprising the steps of:

The network element generates a first offline charging request including location information for determining a location of the user, and sends the first offline charging request to the charging collection function entity;

The charging collection function entity generates a second offline charging request including the positioning information according to the first offline charging request, and sends the second offline charging request to a charging domain; The charging domain identifies the positioning information in the second offline charging request, and determines the location of the user according to the positioning information and performs corresponding charging processing.

The network offline charging method according to claim 8, wherein the positioning information comprises at least one of the following: access network information of the user and a visited network identifier.

The network offline charging method according to claim 9, wherein the access network information of the user includes at least one of the following information: a device identifier, a frame number, a port type, a slot number, and a subroutine where the user is located. Slot number, port number, virtual circuit ID, and cell global ID.

The network offline charging method according to claim 9, wherein the visited network identifier comprises an identifier of an access network of a region where the user is located.

The network offline charging method according to claim 9, wherein the specific method for generating the first offline charging request is:

The network element collects the positioning information;

The network element generates a first offline charging request including the positioning information.

The network offline charging method according to claim 9, wherein the specific processing method of the charging domain is: The charging domain identifies the positioning information in the second offline charging request; and the charging domain determines the location of the user according to the identified positioning information and performs corresponding charging processing.

The network offline charging method according to any one of claims 8 to 13, wherein the network element comprises: a call session control function entity and a session initiation protocol application server, wherein

The session initiation protocol application server may obtain a visited network identifier from at least one of the following messages from the serving call session control function entity S-CSCF: a registration message sent by the call session function entity to the session initiation protocol application server, And a service request message sent by the call session function entity to the session initiation protocol application server.

15. A network online charging system, comprising:

The online charging request generating device is located at the network element side, configured to generate an online charging request including positioning information for determining a location of the user, and send the first charging request to the online charging request processing device;

The online charging request processing device is located on the online charging system side, and after identifying the positioning information in the online charging request, determining the location of the user, performing corresponding charging processing, and indicating The network element performs corresponding service processing.

The network online charging system according to claim 15, wherein the positioning information comprises at least one of the following: access network information of the user and a visited network identifier.

The network online charging system according to claim 16, wherein the access network information of the user includes at least one of the following information: a device identifier, a frame number, a port type, a slot number, and a subroutine where the user is located. Slot number, port number, virtual circuit ID, and cell global ID.

The network online charging system according to claim 16, wherein the visited network identifier comprises at least one of the following: an identifier of the access network of the area where the user is located.

The network online charging system according to claim 16, wherein the online charging request generating device comprises:

An online user location information collection module, configured to collect location information of the user; The online charging request generating module is configured to generate an online charging request including the positioning information.

The network online charging system according to claim 16, wherein the online charging request processing device comprises:

An online user location determining module, configured to identify the location information in the online charging request, and determine a location of the user according to the positioning information;

The online charging request processing module is configured to perform corresponding charging processing according to the location of the user, and instruct the network element to perform corresponding service processing.

The network online charging system according to any one of claims 15 to 20, wherein the network element comprises: a call session control function entity and a session initiation protocol application server, where

22. A network online charging method, comprising the steps of:

The network element generates an online charging request including positioning information for determining a location of the user, and transmits the online charging request to the online charging system;

The online charging system identifies the positioning information in the online charging request, and determines the location of the user according to the positioning information, and performs corresponding charging processing.

The network online charging method according to claim 22, wherein the positioning information comprises at least one of the following: access network information of the user and a visited network identifier.

The online charging method of the network according to claim 23, wherein the access network information of the user includes at least one of the following information: a device identifier, a frame number, a port type, a slot number, and a subroutine where the user is located. Slot number, port number, virtual circuit ID, and cell global ID.

The network online charging method according to claim 23, wherein the visited network identifier comprises an identifier of an access network of a region where the user is located.

The network online charging method according to claim 23, wherein the generating The specific method of the online charging request is:

The network element collects the positioning information used to determine a location of the user;

The network element generates an online charging request including the positioning information.

The network online charging method according to claim 23, wherein the specific processing method of the online charging system is:

The online charging system identifies the positioning information in the online charging request; and the online charging system determines the location of the user according to the identified positioning information, performs corresponding charging processing, and indicates an indication The network element performs corresponding service processing.

The network online charging method according to any one of claims 22 to 27, wherein the network element comprises: a call session control function entity and a session initiation protocol application server, where

The session initiation protocol application server obtains a visited network identifier from at least one of the following messages: a registration message sent by the call session function entity to the session initiation protocol application server, and the call session function entity sends the session message to the session Initiate a service request message for the protocol application server.