CN101765223A - Method, SGSN and system of business control equipment obtaining user access type - Google Patents

Abstract

The invention relates to mobile communication technology, in particular to a technology for service control equipment to obtain user access types in data services. Provide a technology for service control equipment to obtain user access type indication information, so as to realize that the service control equipment obtains user access type indication information in a networking environment where multiple access networks share a core network, including: Identify the user's access type when the access type changes; the SGSN reports the identified user's access type to the GGSN; the GGSN reports the user's access type to the service control device. For the networking environment of multiple access networks with a common core network, it provides a technical solution in which the SGSN is responsible for identifying the user access type indication information and reports it to the service control device through the GGSN, so as to provide service control devices with multiple access networks. Obtaining user access type indication information in a common core network networking environment provides a reliable guarantee.

Description

Method for service control equipment to obtain user access type, SGSN and system

technical field

The invention relates to mobile communication technology, in particular to a technology for service control equipment to obtain user access types in data services.

Background technique

As shown in Figure 1, in the existing data services, the core network connected to each access network is independently networked, and various wireless accesses have their own supporting core network element equipment, such as TD-SCDMA (TimeDivision-Synchronous Code Division Multiple Access, serving GPRS support node), wireless access has matching TD SGSN (Serving GPRS Support Node) and TD GGSN (GatewayGPRS Support Node, gateway GPRS support node), 2G wireless access has matching 2G SGSN and 2G GGSN wait. The data information of different wireless accesses are routed to the WAP gateway through their own independent paths, and are connected to the service control equipment through the WAP gateway. Among them, the functions of the main network elements are as follows:

SGSN (Serving GPRS Support Node): It is used to maintain the SGSN PDP context for the terminal and provide functions such as pathfinding.

GGSN (Gateway GPRS Support Node): A gateway used to connect to an external data network, providing routing functions, and assigning dynamic IP addresses to terminals.

WAP (Wireless Access Protocol, Wireless Access Protocol Gateway): It is used to proxy terminals to access service control equipment. Usually, according to a certain judgment mechanism, user information such as the user's mobile phone number, terminal model, and access bearer mode is inserted into the message header to bring Business control equipment.

Gn interface (interface between SGSN and GGSN): used to transmit PDP (Packet Data Protocol Context) context messages, including PDP context activation requests and responses when users access the Internet, and PDP contexts when users access types change Update request and response, PDP context deactivation request response when the user is offline.

Gi interface (interface between GGSN and WAP gateway): used to transmit Radius protocol messages, including access authentication requests and responses when users go online, accounting start requests and responses when users go online, and messages when user access types change Billing update request and response, billing end request and response when the user logs off the network normally or in an abnormal way and the WAP gateway timer expires.

In the data service, the service control device needs to obtain the user's access type, that is, the user's access network type, in order to complete service adaptation. In the existing core network independent networking structure shown in Figure 1, the identification of user access types is completed by the WAP gateway, which can distinguish user access types according to routing data, such as IP address segments of different access networks. After the WAP gateway identifies the user's access type, it inserts the access type indication information field into the HTTP message header and forwards it to the service control device. The service control device can obtain the current user's access type indication information, and Carry out related adaptation work, such as the streaming media platform adjusts the stream rate according to different accesses.

However, as shown in Figure 2, when multiple wireless access networks share the same core network, and the SGSN and GGSN carry multiple wireless access data services at the same time, for example: TD-SCDMA wireless access and 2G wireless access connections are the same SGSN and GGSN, according to the existing technology, although the WAP gateway can obtain the routing data of the GGSN, because the same GGSN is carrying 2G3G service flows at the same time, the WAP gateway cannot distinguish the user’s access type, and then the service control device will also be unable to Obtain the user's access type indication information, so as to realize service adaptation.

Contents of the invention

An embodiment of the present invention provides a method for a service control device to obtain user access type indication information, so as to enable the service control device to obtain user access type indication information in a networking environment where multiple access networks share a core network.

A method for a service control device to obtain a user's access type, comprising:

The serving GPRS support node SGSN identifies the user's access type when the user's access type changes;

The SGSN reports the identified user's access type to the GGSN;

The gateway GPRS support node GGSN reports the user's access type to the service control device.

Wherein, the SGSN identifies the user's access type according to the user's business needs, including:

The SGSN identifies the user's access type when the user initially accesses the network, or when the user performs a wireless access switching operation, or identifies the user's access type when the user logs off the network.

Wherein, the specific method for the SGSN to identify the user's access type includes:

When the SGSN board interface connected to the wireless network that the user accesses is connected to only one wireless access network through physical bearer, the SGSN, according to the SGSN board interface connected to the user's wireless access network, Query the user's access type in the mapping relationship between the access type indication information;

When the SGSN board interface connected to the wireless network accessed by the user is connected to at least two wireless access networks through physical bearers, the SGSN identifies the user's access type through the user's routing data.

Preferably, the SGSN identifies the user's access type when the user initially accesses the network, specifically including: the SGSN identifies the user's access type when receiving the PDP context activation request sent by the user equipment; and

The SGSN reporting the identified user's access type to the GGSN specifically includes: the SGSN carrying the identified user's access type indication information in a PDP context activation request message and reporting to the GGSN.

Further, the SGSN identifies the user's access type when the user performs a wireless access switching operation, specifically including: the SGSN identifies the user's access type when receiving a PDP context update request sent by the user equipment; and

The SGSN reporting the identified user's access type indication information to the GGSN specifically includes: the SGSN carrying the identified user's access type indication information in a PDP context update request message and reporting to the GGSN.

The SGSN identifies the user's access type when the user logs off the network, specifically including: the SGSN identifies the user's access type when receiving the PDP context deactivation request sent by the user equipment; and the SGSN identifies the user's access type Reporting the user's access type to the GGSN specifically includes: the SGSN reports the identified user's access type indication information in a PDP context deactivation request message to the GGSN.

Wherein, when the user service supports the HTTP protocol, the GGSN reports the user access type to the service control device, which specifically includes: the GGSN reports the user access type indication information to the service control device through the WAP gateway.

Further, the GGSN reports the user access type indication information to the service control device through the WAP gateway, specifically including:

GGSN sends a remote user dial-up authentication service Radius access authentication request message carrying user access type indication information to the WAP gateway;

After the authentication is passed, the GGSN sends the charging start request message carrying the user access type indication information to the WAP gateway;

The WAP gateway extracts the user access type indication information from the charging start request, converts it into indication information recognizable by the service control device, inserts the converted indication information into the HTTP message header, and forwards it to the service control device .

The GGSN reports the user access type indication information to the service control device through the WAP gateway, specifically including:

The GGSN sends a charging update request carrying user access type indication information to the WAP gateway;

The WAP gateway extracts the user access type indication information from the charging update request, converts it into indication information recognizable by the service control device, inserts the converted indication information into the HTTP message header, and forwards it to the service control device.

The GGSN reports the user access type indication information to the service control device through the WAP gateway, specifically including:

GGSN sends a charging stop request carrying user access type indication information to the WAP gateway;

The WAP gateway extracts the user access type indication information from the charging stop request, converts it into indication information recognizable by the service control device, inserts the converted indication information into the HTTP message header, and forwards it to the service control device.

Wherein, when the user service supports a non-HTTP protocol, the GGSN reports the user access type to the service control device, specifically including: the GGSN directly reports the user access type indication information to the list according to the pre-configured service control device list Each business control device in the.

Further, when the user service supports a non-HTTP protocol, the GGSN reports the user's access type to the service control device, specifically including:

The GGSN reports the user's access type indication information to the authentication server;

The authentication server reports the user access type indication information to each service control device in the list according to the pre-configured list of service control devices.

Further, when the GGSN receives the user access type indication information identified and reported by the SGSN when the user initially surfs the Internet, the GGSN reporting the user access type indication information to the authentication server specifically includes: the GGSN reports the user's access type indication information The indication information is carried in the access authentication request message and sent to the authentication server, and after the authentication is passed, the user access type indication information is carried in the charging start request message and reported to the authentication server;

When the GGSN receives the user access type indication information identified and reported by the SGSN when the user undergoes wireless network handover, the GGSN reports the user access type indication information to the authentication server. The indication information is carried in the charging update request message and reported to the authentication server;

When the GGSN receives the user access type indication information identified and reported by the SGSN when the user is off the network, the GGSN reports the user access type indication information to the authentication server, which specifically includes: the GGSN user access type indication information is carried in The accounting stop request is reported to the authentication server.

Further, when the GGSN receives the user access type indication information identified and reported by the SGSN when the user initially surfs the Internet, it also includes: the GGSN stores the user's access type indication information locally; The user access type indication information identified and reported during handover also includes: the GGSN updates the locally saved user access type indication information; and when the GGSN receives the user access type indication information identified and reported by the SGSN when the user is off the network In this case, it also includes: deleting the locally stored user access type indication information.

Further, when the SGSN identifies the user's access type when the user initially accesses the network, it also includes: saving the user's access type information locally; and identifying the user's access type when the user performs a wireless access switching operation. Finally, it also includes: updating the locally stored user access type information; and when the SGSN identifies the user's access type when the user is offline, it also includes: deleting the locally stored user access type information.

A serving GPRS support node, comprising:

An identification unit, configured to identify the user's access type according to the user's business needs;

The reporting unit is configured to report the identified access type of the user to the GGSN.

Preferably, it also includes: a board provided with at least one interface, and each board interface is respectively connected to a wireless access network through a physical bearer network;

The storage unit is used to save the mapping relationship between the SGSN board interface and the wireless network access type indication information, and the identification unit is specifically used to, in the storage In the mapping relationship saved by the unit, query the user's access type.

Further, it also includes:

The determining unit is configured to trigger the identification unit when receiving a PDP context activation request, a PDP context update request or a PDP context deactivation request sent by the user equipment through the board interface.

Preferably, the identification unit specifically includes:

The routing data extraction subunit is used to extract the routing data of the user;

The access type identification subunit is configured to identify the access type of the user according to the user routing data in advance of the routing data extraction subunit.

Further, the identification unit also includes:

The request type identification subunit is configured to trigger the routing data extraction subunit when receiving a PDP context activation request, a PDP context update request or a PDP context deactivation request sent by the user equipment.

A user access type reporting system, including: service control equipment, and also includes:

The serving GPRS support node SGSN is used to report when the user access type changes;

The gateway GPRS support node GGSN is used to receive the user's access type reported by the SGSN and report it to the service control device.

Further, it also includes:

The wireless access protocol WAP gateway or authentication server is used to receive the user's access type reported by the GGSN and continue to report it to the service control device.

Preferably, the SGSN includes a board, and the board is provided with at least one interface. When the SGSN board interface connected to the wireless network accessed by the user is only connected to one wireless access network through a physical bearer, the SGSN according to The SGSN board interface connected to the user's wireless access network queries the user's access type in the mapping relationship between the SGSN board interface and the wireless network access type indication information; When the SGSN board interface is connected to at least two wireless access networks through physical bearers, the SGSN identifies the user's access type through the user's routing data.

The embodiment of the present invention is a networking environment of multiple access networks with a common core network, and provides a technical solution in which the SGSN is responsible for identifying the user access type indication information and reporting it to the service control device through the GGSN, and whether the service supports the HTTP protocol Provides a practical reporting process, thereby providing a reliable guarantee for the service control equipment to obtain user access type indication information in a networking environment where multiple access networks share the core network.

Description of drawings

FIG. 1 is a schematic diagram of an existing core network independent networking structure;

FIG. 2 is a schematic diagram of an existing core network hybrid networking structure;

FIG. 3 is a schematic flowchart of a method for a service control device to obtain user access type indication information provided by an embodiment of the present invention;

FIG. 4 and FIG. 5 are respectively schematic diagrams of the method for identifying user access type indication information by the SGSN provided by the embodiment of the present invention;

FIG. 6 is a schematic diagram of a specific implementation flow for reporting the access type indication information to the GGSN by the SGSN provided by the embodiment of the present invention;

7 is a schematic diagram of the principle of reporting the access type indication information to the service control device by the GGSN provided by the embodiment of the present invention for services supporting the HTTP protocol;

FIG. 8 is a schematic diagram of a specific implementation process of reporting the access type indication information to the service control device by the GGSN provided for the service supporting the HTTP protocol in the embodiment of the present invention;

FIG. 9 and FIG. 10 are schematic diagrams of the principle of reporting the access type indication information to the service control device by the GGSN provided for the service supporting the non-HTTP protocol according to the embodiment of the present invention;

FIG. 11 , FIG. 12 and FIG. 13 are schematic structural diagrams of an SGSN provided by an embodiment of the present invention, respectively.

Detailed ways

The embodiment of the present invention is aimed at the hybrid networking structure shown in Figure 2, for example, in the networking environment where multiple access networks share a core network, the SGSN in the core network is used to identify the user access type and through the GGSN in the core network, The user's access type indication information is reported to the service control device, so that the service control device obtains the user's access type indication information, thereby completing service adaptation.

As shown in Figure 3, the user access type identification method provided by the embodiment of the present invention includes the following steps:

S301. The SGSN identifies the user's access type when the user's access type changes;

S302. The SGSN reports the access type indication information of the identified user to the GGSN;

S303. The GGSN reports the user's access type indication information to the service control device.

Each step is described in detail below.

1. Identification of user access type indication information

In step S301, when the user access type changes, according to the needs of service adaptation, the wireless network access type is generally identified in the following three time periods and reported to the relevant service control device in time:

1) It is necessary to identify the user's access type when the user accesses the network to initially use the service; before the user accesses, the default user access type is empty, and after the user accesses the network, the access type changes;

2) During the use of user services, when a wireless access switching operation occurs, it is necessary to identify the user's access type;

3) It is necessary to identify the user's access type when the user logs off the network.

The specific method for the SGSN to identify the user's access type is divided into the following two cases:

1), each wireless access network is connected to the independent dedicated SGSN board interface on the SGSN board through a different physical bearer network

In this case, because the SGSN can configure the relationship between the SGSN board interface and the wireless network access type indication information, usually on the SGSN board, each wireless access network accesses different SGSN boards through different physical bearers. card interface. Therefore, when the SGSN board interface connected to the wireless network accessed by the user is only connected to one wireless access network through a physical bearer, the SGSN performs the communication between the SGSN board interface and the wireless network according to the SGSN board interface connected to the user's wireless access network. In the mapping relationship between the network access type indication information, query the user's access type indication information.

For example, as shown in Figure 4: the RNC of TD adopts ATM or IP bearer network, and the BSC of 2G adopts frame inheritance bearer network. The interface on the board is used to distinguish the user's access type.

2) At least two wireless access networks are connected to the same SGSN board interface through the same physical bearer network

In this case, the SGSN can distinguish the user's access type through the user's routing data. That is, when the SGSN board interface connected to the wireless network accessed by the user is connected to at least two wireless access networks through physical bearers, the SGSN identifies the user's access type through the user's routing data.

For example, as shown in Figure 5, the user's routing data such as the IP address of the wireless control device in the wireless access network, with the IP-based 2G bearer network, the TD wireless control device RNC and the 2G wireless control device BSC will use the IP network In order to connect the bearer network to the SGSN, it will not work to continue to use the method of distinguishing through the interface of the SGSN board card. At this time, since the IP address segments assigned to the IP bearer network of the RNC in the TD and the BSC in the 2G are different, the SGSN can distinguish the access type of the user through different IP address segments.

It should be noted that, for the first case, the SGSN can also distinguish the user's access type through the user's routing data.

2. After the SGSN acquires the user's access type, it reports the indication information of the user's access type to the GGSN

In step S302, the SGSN reports the user's access type indication information to the GGSN in related messages according to different identification periods. A preferred way is, for example, as shown in Figure 6, in the user's PDP context (PDP Context) Set the access type indication information field in the PDP context, for example, you can set the RAT Type field in the PDP context. The specific process includes:

●When the user initially surfs the Internet, when the SGSN receives the PDP Context Activate Request (PDP Context Activate Request) message sent by the user equipment, after identifying the user's access type through the board interface or routing data, the SGSN saves the user's access type indication Information; the SGSN sends a PDP context activation request message to the GGSN, and the message carries the user's access type indication information field RATType.

●When a wireless network handover occurs for the user, such as 2G/3G handover, when the SGSN receives the PDP Context Update Request (Update PDP Context Request) message sent by the user equipment, it will identify the new access through the board interface or routing data After the type, the saved access type indication information is updated; the SGSN sends a PDP context update request message to the GGSN, and the message carries the updated access type indication information field RAT Type.

●When the user goes off the network normally, the SGSN receives the PDP context deactivation request message (Deactivate PDP Context Request) sent by the user equipment. After identifying the user's access type through the board interface or routing data, the SGSN sends the PDP context Activation request message (Deactivate PDP Context Request), this message carries the user's access type indication information field RAT Type. The SGSN deletes the user's access type indication information cached locally.

The format of the RAT Type field is shown in Table 1 below, and the values are shown in Table 2 below:

Table 1.

Table 2.

RAT Type values Value(s)(Decimal) <reserved> 0 UTRAN 1 GERAN 2 WLAN 3 GAN 4 HSPA Evolution 5

According to Table 2, when the RAT Type (Radio Access Technology Type) field value is 1, the user access type indication information is UTRAN (UMTS Terrestrial Radio Access Network), when the RAT Type field value is 2, the user access type indication information For GERAN (GSM EDGE Radio Access Network), when the RAT Type field value is 3, the user access type indication information is WLAN (Wireless Local Area Networks), when the RAT Type field value is 4, the user access type indication information is GAN (Generic Access Network), when the RAT Type field value is 5, the user access type indication information is HSPA Evolution (High Speed Packet Access Evolution), if there are more access types, expand Table 2 and add RAT when needed Bits occupied by the Type field value.

3. The GGSN reports the user access type indication information to the service control device

In step S303, the embodiment of the present invention gives different specific examples according to whether the service supports the HTTP protocol:

1) When the service supports the HTTP protocol, as shown in Figure 7, the GGSN reports the user access type indication information to the service control device through the WAP gateway, such as the thick solid line in Figure 7.

According to the specific example of the SGSN reporting to the GGSN, as shown in Figure 8:

●When the user initially surfs the Internet, the GGSN receives the PDP context activation request message containing the RAT Type field sent by the SGSN, and saves it; the GGSN sends the Radius (Remote Authentication Dial In User Service, remote user dial-up authentication Service) access authentication request (Access Request), after the authentication is passed, the WAP gateway returns an access permission (Access Accept) message to the GGSN, and the GGSN sends an accounting start request (Accounting Request/START) to the WAP gateway, and inserts the RAT Type field. The WAP gateway extracts the RAT Type field in the accounting start request, converts it into an "x-up-bear-type" field recognizable by the service control device and saves it, then inserts it into the HTTP message header and forwards it to the service control device.

●When the user switches over the wireless network, after receiving the PDP context update request message containing the RAT Type field, the GGSN updates the stored access type indication information; the GGSN sends an accounting update request (Accounting Request/Interim-Update) to the WAP gateway , and insert the updated RATType field. The WAP gateway extracts the RAT Type field in the charging update request, and converts it into an "x-up-bear-type" field recognizable by the service control device for update and storage, and then inserts it into the HTTP message header and forwards it to the service control device for further processing. renew.

●When the user goes off the network normally, after the GGSN receives the PDP context deactivation request message containing the RAT Type field; the GGSN sends an accounting stop request (AccountingRequest/STOP) to the WAP gateway, and inserts the RAT Type field. The WAP gateway deletes the corresponding "x-up-bear-type" field in the user information. The GGSN deletes the corresponding RAT Type field in the user information.

The mapping rules and value requirements of the "x-up-bear-type" field and RAT Type are shown in Table 3, where: the value refers to TD-SCDMA, GPRS/EDGE and other identifiers, not a number.

table 3.

2) When the service supports non-HTTP protocols, as shown in Figure 9, the GGSN reports the user access type indication information to the service control device through the interface with the service control device, such as the thick solid line in Figure 9.

In the embodiment of the present invention, the list of service control devices that need to be reported can be configured on the GGSN. When the user goes online, changes the access type indication information, or goes off the network, the GGSN can actively report the current user's information to all service control devices in the configuration list. Access type indication information. Depending on the protocol supported by the service, the GGSN and the service control device select a specific protocol message for reporting the access type indication information.

According to the specific example of the SGSN reporting the GGSN, the first specific process for the GGSN reporting the service control device includes:

●When the user initially surfs the Internet, GGSN receives the PDP context activation request message containing the RAT Type field and saves it; GGSN sends the message carrying the RAT Type field to all service control devices in the configuration list through a specific protocol.

●When the user switches over the wireless network, after receiving the PDP context update request message containing the RAT Type field, the GGSN updates the stored access type indication information; the GGSN sends the updated RATType field to all services in the configuration list through a specific protocol message controlling device.

●When the user goes off the network normally, after the GGSN receives the PDP context deactivation request message containing the RAT Type field; the GGSN sends the current RAT Type field to all service control devices in the configuration list through a specific protocol message. The GGSN deletes the corresponding RAT Type field in the user information.

3) When the service supports a non-HTTP protocol, as shown in FIG. 10 , the GGSN may also report the user access type indication information to the service control device via the authentication server, such as the thick solid line in FIG. 10 .

In the embodiment of the present invention, the list of service control devices that need to be reported can be configured on the authentication server. When the user accesses the Internet, changes the access type indication information, or goes off the network, the authentication server can actively report to all service control devices in the configuration list. Report the access type indication information of the current user. Depending on the protocol supported by the service, the authentication server and the service control device select a specific protocol message for reporting the access type indication information.

See Figure 10, which specifically includes:

●When the user initially surfs the Internet, the GGSN receives the PDP context activation request message containing the RAT Type field and saves it; the GGSN sends a Radius access authentication request (Access Request) carrying the RAT Type field to the authentication server, and the authentication passes After that, the GGSN sends an accounting start request (Accounting Request/START) to the authentication server, and inserts the RAT Type field. The authentication server extracts and saves the RAT Type field in the accounting start request, and sends a message carrying the RAT Type field to all service control devices in the configuration list through a specific protocol.

●When the user switches over the wireless network, after receiving the PDP context update request message containing the RAT Type field, the GGSN updates the saved access type indication information; the GGSN sends an accounting update request (Accounting Request/Interim-Update) to the authentication server ), and insert the updated RATType field. The authentication server extracts the RAT Type field in the charging update request for updating and saving, and then sends the message carrying the RAT Type field to all service control devices in the configuration list through a specific protocol for updating.

●When the user goes off the network normally, after the GGSN receives the PDP context deactivation request message containing the RAT Type field; the GGSN sends an accounting stop request (AccountingRequest/STOP) to the authentication server, and inserts the RAT Type field. The authentication server deletes the corresponding RATType field in the user information.

As shown in Figure 11, the embodiment of the present invention also provides an SGSN, including:

An identifying unit 111, configured to identify the user's access type when the user's access type changes;

The reporting unit 112 is configured to report the identified user's access type to the GGSN.

Wherein, as shown in Figure 12, a specific structure of the SGSN may further include:

A board 113 having at least one interface is provided, and each board interface is respectively connected to a wireless access network through a physical bearer network;

The storage unit 114 is configured to save the mapping relationship between the SGSN board interface and the wireless network access type indication information. In the saved mapping relationship, query the user's access type.

In a specific application scenario, in order to trigger the identification and reporting of user access types according to different service periods, the SGSN also includes:

The determining unit 115 is configured to trigger the identification unit 111 when receiving a PDP context activation request, a PDP context update request or a PDP context deactivation request sent by the user equipment through the board interface.

As shown in Figure 13, in another specific structure of the SGSN, the identification unit 111 specifically includes:

Routing data extraction subunit 1111, used to extract the user's routing data;

The access type identifying subunit 1112 is configured to identify the user's access type according to the user routing data in advance of the routing data extracting subunit 1111 .

In a specific application scenario, in order to trigger identification and reporting of user access types according to different business periods, the identification unit further includes:

The request type identification subunit 1113 is configured to trigger the routing data extraction subunit 1111 when receiving a PDP context activation request, a PDP context update request or a PDP context deactivation request sent by the user equipment.

The embodiment of the present invention also provides a reporting system for obtaining user access types, including: a service control device, an SGSN and a GGSN, and further, a WAP gateway or an authentication server. The specific implementation is as mentioned above, and the description will not be repeated here.

It should be noted that, for the convenience of understanding, in the embodiments and drawings, specific wireless access networks and their corresponding specific messages are used as examples for illustration, but this does not limit the scope of protection of the present invention. The implementation of the technical solutions of the present invention It is not limited to the hybrid networking situation in which certain types of specific wireless access networks share the core network. Those skilled in the art can completely base on the content disclosed in the present invention, according to the wireless access network in the actual networking and its corresponding The message is implemented concretely.

The embodiment of the present invention is a networking environment of multiple access networks with a common core network, and provides a technical solution in which the SGSN is responsible for identifying the user access type indication information and reporting it to the service control device through the GGSN, and whether the service supports the HTTP protocol Provides a practical reporting process, thereby providing a reliable guarantee for the service control equipment to obtain user access type indication information in a networking environment where multiple access networks share the core network.

Apparently, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (23)

1. A method for a service control device to obtain a user's access type, comprising: The serving GPRS support node SGSN identifies the user's access type when the user's access type changes; The SGSN reports the identified user's access type to the GGSN; The gateway GPRS support node GGSN reports the user's access type to the service control device. 2. The method according to claim 1, wherein the SGSN identifying the user's access type when the user's access type changes comprises: The SGSN identifies the user's access type when the user initially accesses the network, or when the user performs a wireless access switching operation, or identifies the user's access type when the user logs off the network. 3. The method according to claim 1 or 2, wherein the specific method for the SGSN to identify the user's access type comprises: When the SGSN board interface connected to the wireless network that the user accesses is connected to only one wireless access network through physical bearer, the SGSN, according to the SGSN board interface connected to the user's wireless access network, Query the user's access type in the mapping relationship between the access type indication information; When the SGSN board interface connected to the wireless network accessed by the user is connected to at least two wireless access networks through physical bearers, the SGSN identifies the user's access type through the user's routing data. 4. The method of claim 2, wherein: The SGSN identifies the user's access type when the user initially accesses the network, specifically including: the SGSN identifies the user's access type when receiving the PDP context activation request sent by the user equipment; and The SGSN reporting the identified user's access type to the GGSN specifically includes: the SGSN carrying the identified user's access type indication information in a PDP context activation request message and reporting to the GGSN. 5. The method of claim 4, wherein: The SGSN identifies the user's access type when the user performs a wireless access handover operation, specifically including: the SGSN identifies the user's access type when receiving a PDP context update request sent by the user equipment; and The SGSN reporting the identified user's access type indication information to the GGSN specifically includes: the SGSN carrying the identified user's access type indication information in a PDP context update request message and reporting to the GGSN. 6. The method according to claim 4 or 5, characterized in that: The SGSN identifies the user's access type when the user logs off the network, specifically including: the SGSN identifies the user's access type when receiving the PDP context deactivation request sent by the user equipment; and The SGSN reporting the identified user's access type to the GGSN specifically includes: the SGSN carrying the identified user's access type indication information in a PDP context deactivation request message and reporting to the GGSN. 7. The method according to claim 3, wherein when the user service supports the HTTP protocol, the GGSN reports the user's access type to the service control device, specifically comprising: the GGSN reports the user's access type through the WAP gateway The indication information is reported to the service control device. 8. The method according to claim 7, wherein the GGSN reports the user access type indication information to the service control device through the WAP gateway, specifically comprising: GGSN sends a remote user dial-up authentication service Radius access authentication request message carrying user access type indication information to the WAP gateway; After the authentication is passed, the GGSN sends the charging start request message carrying the user access type indication information to the WAP gateway; The WAP gateway extracts the user access type indication information from the charging start request, converts it into indication information recognizable by the service control device, inserts the converted indication information into the HTTP message header, and forwards it to the service control device. 9. The method according to claim 8, wherein the GGSN reports the user access type indication information to the service control device through the WAP gateway, specifically comprising: The GGSN sends a charging update request carrying user access type indication information to the WAP gateway; The WAP gateway extracts the user access type indication information from the charging update request, converts it into indication information recognizable by the service control device, inserts the converted indication information into the HTTP message header, and forwards it to the service control device. 10. The method according to claim 9, wherein the GGSN reports the user access type indication information to the service control device through the WAP gateway, specifically comprising: GGSN sends a charging stop request carrying user access type indication information to the WAP gateway; The WAP gateway extracts the user access type indication information from the charging stop request, converts it into indication information recognizable by the service control device, inserts the converted indication information into the HTTP message header, and forwards it to the service control device. 11. The method according to claim 3, wherein when the user service supports a non-HTTP protocol, the GGSN reports the user's access type to the service control device, specifically comprising: GGSN according to the pre-configured service control device The list directly reports the user access type indication information to each service control device in the list. 12. The method according to claim 3, wherein when the user service supports a non-HTTP protocol, the GGSN reports the user's access type to the service control device, specifically comprising: The GGSN reports the user's access type indication information to the authentication server; The authentication server reports the user access type indication information to each service control device in the list according to the pre-configured list of service control devices. 13. The method of claim 12, wherein: When the GGSN receives the user access type indication information identified and reported by the SGSN when the user initially surfs the Internet, the GGSN reports the user's access type indication information to the authentication server. Carry it in the access authentication request message and send it to the authentication server, and after the authentication is passed, carry the user access type indication information in the charging start request message and report it to the authentication server; When the GGSN receives the user access type indication information identified and reported by the SGSN when the user undergoes wireless network handover, the GGSN reports the user access type indication information to the authentication server. The indication information is carried in the charging update request message and reported to the authentication server; When the GGSN receives the user access type indication information identified and reported by the SGSN when the user is off the network, the GGSN reports the user access type indication information to the authentication server, which specifically includes: the GGSN user access type indication information is carried in The accounting stop request is reported to the authentication server. 14. The method of claim 3, wherein: When the GGSN receives the user access type indication information identified and reported by the SGSN when the user initially surfs the Internet, it also includes: the GGSN stores the user's access type indication information locally; and When the GGSN receives the user access type indication information identified and reported by the SGSN when the user undergoes wireless network switching, it also includes: the GGSN updates the locally stored user access type indication information; and When the GGSN receives the user access type indication information identified and reported by the SGSN when the user is offline, it also includes: deleting the locally stored user access type indication information. 15. The method of claim 3, wherein: After the SGSN identifies the user's access type when the user initially accesses the network, it also includes: saving the user's access type information locally; and After the SGSN identifies the user's access type when the user performs a wireless access handover operation, it also includes: updating the locally stored user access type information; and When the SGSN identifies the user's access type when the user is off the network, it also includes: deleting the locally stored user access type information. 16. A service GPRS support node, characterized in that, comprising: An identification unit, configured to identify the user's access type when the user's access type changes; The reporting unit is configured to report the identified access type of the user to the GGSN. 17. serving GPRS support node as claimed in claim 16, is characterized in that, also comprises: A board with at least one interface is provided, and each board interface is respectively connected to a wireless access network through a physical bearer network; The storage unit is used to save the mapping relationship between the SGSN board interface and the wireless network access type indication information; the identification unit is specifically based on the SGSN board interface connected to the user's wireless access network, stored in the storage unit In the mapping relationship, query the user's access type. 18. serving GPRS support node as claimed in claim 17, is characterized in that, also comprises: The determining unit is configured to trigger the identification unit when receiving a PDP context activation request, a PDP context update request or a PDP context deactivation request sent by the user equipment through the board interface. 19. serving GPRS support node as claimed in claim 16, is characterized in that, described identification unit specifically comprises: The routing data extraction subunit is used to extract the routing data of the user; The access type identification subunit is configured to identify the access type of the user according to the user routing data in advance of the routing data extraction subunit. 20. serving GPRS support node as claimed in claim 19, is characterized in that, described identification unit also comprises: The request type identification subunit is configured to trigger the routing data extraction subunit when receiving a PDP context activation request, a PDP context update request or a PDP context deactivation request sent by the user equipment. 21. A user access type reporting system, comprising: a service control device, characterized in that it also includes: The serving GPRS support node SGSN is used to identify and report the user's access type when the user's access type changes; The gateway GPRS support node GGSN is used to receive the user's access type reported by the SGSN and report it to the service control device. 22. The system of claim 21, further comprising: The wireless access protocol WAP gateway or authentication server is used to receive the user's access type reported by the GGSN and continue to report it to the service control device. 23. The system according to claim 22, wherein the SGSN includes a board, and the board is provided with at least one interface, when the interface of the SGSN board connected to the wireless network accessed by the user passes through the physical bearer When only one wireless access network is connected, the SGSN queries the user's access type in the mapping relationship between the SGSN board interface and the wireless network access type indication information according to the SGSN board interface connected to the user's wireless access network ; When the SGSN board interface connected to the wireless network accessed by the user is connected to at least two wireless access networks through physical bearers, the SGSN identifies the user's access type through the user's routing data.

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