WO2008006269A1 - A method, a function entity and a system for announcing user's information - Google Patents

Abstract

A method, a function entity and a network system for announcing the user's information belong to the field of network communication technology. The method comprises: the first function entity of the network where the user locates currently acquires the user information; the first function entity determines that the network where the user locates currently is the visited network based on the user information, the first function entity of the visited network announces the user information or the index information produced by the user information to the first function entity of home network. By means of the technical solution, the home network could still acquire the user's information after the user roamed to the visited network.

Description

 Method, functional entity and system for announcing user information

 This application claims the priority of the Chinese patent application filed on July 4, 2006, the Chinese Patent Office, Application No. 200610061529.X. The invention is entitled "Methods, Functional Entities and Systems for Obtaining User Information in NGN". The entire contents are incorporated herein by reference.

Technical field

 The present invention relates to the field of network communication technologies, and in particular, to a method, a functional entity, and a system for announcing information of a user.

Background technique

 In the current layered Next Generation Network (NGN) architecture, in order to enable users to access NGN services anytime and anywhere, and obtain seamless, high-quality service services, the transport layer is defined. A Network Attachment Subsystem (NASS) is used to complete the assignment of the user's IP (Internet Protocol) address and terminal configuration parameters through the NASS, user authentication during or before the address allocation procedure, Network access authorization based on user service list, access network configuration based on user service list, location management, and management of access network. An example of an NGN architecture including NASS in the prior art is shown in FIG.

 Among the many functional entities of NASS in this NGN architecture, the customer network gateway configuration function (CNGCF) entity 11, access relay function (ARF) entity 13, network access The Network Access Configuration Function (NACF) entity 15, the Connectivity Session Location and Repository Function (CLF) entity 17, and the User Access Authorization Function (UAAF) entity. User Profile Data Function (PDBF) entity 19 and Access Management Function (AMF) entity 14. The following briefly describes the above main functional entities:

 The CNGCF entity 11 provides the user with additional configuration information such as internal firewall control, Quality of Service (QoS), etc., when the user's Customer Premises Equipment (CPE) 12 is initialized and updated.

The ARF entity 13 acts as a relay between the CPE 12 and other functional entities in the NASS, ie The ARF is equivalent to an entry to the NASS. The ARF receives the network access request from the CPE 12 and forwards the CPE request to the NASS.

 The NACF entity 15 is mainly responsible for assigning IP addresses to users, providing network configuration parameters, etc., and functions as a Dynamic Host Configuration Protocol (DHCP) server or a remote authentication dial in user service (RADIUS). The role of the server, etc.

 The CLF entity 17 records the association between the IP address assigned to the CPE 12 and the network location information provided by the NACF entity 15, the network location information and the geographical location information, and the CLF entity 17 also stores the user identifier to which the IP address is assigned. User network QoS description and user parameters related to user private location information.

 The UAAF entity 16 performs user authentication, network access authorization based on the user network list, wherein the authentication and authorization information from the user service list is stored in the PDBF entity. The PDBF entity 19 stores a database of user authentication, authentication data, and information related to network access configuration.

 The AMF entity 14 translates the network access request sent by the user, sends an IP address assignment and a possible network configuration parameter request to the NACF entity 15; and sends a request to the UAAF entity 16, and the UAAF entity 16 verifies the authorization of the user and the network access, Get the user's access configuration parameters.

 In the NGN architecture including NASS shown in FIG. 1, a service control subsystems and applications (SCSA) 18 that communicate with the NASS are also included. The Application Function (AF) in SCSA18 (not shown) can obtain user location information through the CLF entity 17 located in the NAS of the Home Network (HN). The process is as follows:

 The AF in the SCSA 18 initiates a "Location Information Query (LQ)" request to the CLF entity 17 of the user HN. The request message mainly includes the IP address of the CPE 12 to be queried, the address field in which the IP address is located, and the SCSA 18 initiated. Query the requested application server identifier (AF Identify , AFI ) and other parameters, as shown in Table 1 below.

Location Information Query

 Globally Unique Address

- Assigned IP Address (Assignment IP Address) - Address Realm (Address Domain)

 Subscriber ID (optional)

 AF Identity (application server identifier)

After receiving the request location information message initiated by the AF in the SCSA 18, the CLF entity 17 obtains the location information of the user through the interface between itself and the UAAF entity 16 and the NACF entity 15. After obtaining the location information of the user, the CLF entity 17 returns the location information of the CPE 12 to the AF of the origination location information query request in the SCSA 18 through the "Location Information Response (LIR)" message.

 The inventor of the present invention found that, in the existing architecture including the NASS, the SCSA of the SCSA requests the location information of the user (ie, CPE) to the CLF entity of the user's home network, and can only satisfy the state that the CPE to be queried does not currently move. . That is, when the CPE is currently in the HN, the CLF entity obtains the current network location information of the user through the UAAF entity and the NACF entity according to the CPEIP address and the address domain to be queried in the query request message, and returns the information to the SCSA through the query response message. AF. When the user moves from the HN to the visited network (VN), the CLF entity cannot pass the local (ie, the user's home network) UAAF entity and the NACF entity according to the IP address and the address domain of the CPE to be queried in the query request message. Obtaining the Network Location Information of the User Therefore, the CLF entity can only initiate the AF return failure message of the location information query request to the SCSA, so that the AF in the SCSA cannot know the current network location information of the user.

Summary of the invention

 The embodiment of the invention provides a method, a functional entity and a system for acquiring information of a user. After the user roams to the visited network, the home network can still obtain the information of the user.

 An embodiment of the present invention provides a method for advertising information of a user, where the method includes: acquiring, by the first functional entity of a network where the user is currently located, the user information; and determining, by the first functional entity, the current location of the user according to the user information. The network is a visited network, and the first functional entity of the visited network notifies the user information or the index information generated by the user information with the first functional entity of the home network.

An embodiment of the present invention provides a method for advertising information of a user, where the method includes: acquiring, by the first functional entity of a network where the user is currently located, the user information; The user information determines the current network of the user; if the current network of the user is the home network, the first functional entity of the home network uses the user information or the index information generated by the user information and the second of the home network. The function entity performs information notification; if the current network of the user is a visited network, the first functional entity of the visited network generates the user information or the user information by using the first functional entity of the home network as an intermediate agent. The index information is advertised with the second functional entity of the home network.

 An embodiment of the present invention provides a method for advertising information of a user, where the method includes: determining that a network where the user is currently located is a visited network; and acquiring, by the first functional entity of the visited network, the user information; A functional entity advertises the user information or index information generated by the user information with a first functional entity of the home network.

 An embodiment of the present invention provides a method for advertising information of a user, where the method includes: determining a network where the user is currently located; and if the current network of the user is a home network, the first functional entity of the home network acquires user information. And the user information or the index information generated by the user information is advertised with the second functional entity of the home network; if the current network of the user is a visited network, the first functional entity of the visited network Obtaining user information, and the first functional entity of the home network is used as an intermediate agent to notify the user information or the index information generated by the user information and the second functional entity of the home network.

 An embodiment of the present invention provides a function entity for implementing information for announcing a user, where the function entity includes a user information processing module, and the user information processing module includes: a user information acquiring unit, where the network belongs to the user Obtaining the user information when the current network is located; the network determining unit is configured to determine whether the current network of the user is the home network or the visited network when the network to which the unit belongs is the current network of the user; The network determining unit determines that the user's current network is a visited network, and performs information notification according to the user information provided by the user information acquiring unit and the functional entity of the home network.

An embodiment of the present invention provides an NGN network system, including a home network and a visited network, and an interface that couples the home network to the visited network, where the interface is configured to: in the home network and the The user information transmitted between the visited networks or the index information generated by the user information can be seen from the above embodiment of the present invention, the first node of the network where the user is currently located. Obtaining user information and determining whether the current network of the user is a visited network or a home network. When the current network of the user is a visited network, the first node of the visited network acts as a server to notify the user information and the first node of the home network, and then The first node in the home network acts as a proxy to perform information notification to the second node of the home network, thereby implementing communication between the visited network and the home network, and the second node of the home network can be accurate whether the user is currently at the HN or the VN. Get user information. DRAWINGS

 1 is a diagram of an NGN architecture including NASS in the prior art;

 2 is a flowchart of Embodiment 1 of a method for announcing information of a user according to the present invention;

 3 is a signaling flowchart of notifying user information when a user is visiting a network in Embodiment 1 of the method of the present invention;

 4 is a flowchart of Embodiment 2 of a method for advertising information of a user according to the present invention;

 5 is a flow chart of information signaling for announcing a user when a user is in a home network according to Embodiment 2 of the method of the present invention;

 6 is a flow chart of information signaling for notifying a user when a user is visiting a network in Embodiment 2 of the method of the present invention;

 7 is a structural diagram of an embodiment of an NGN network system provided by the present invention;

 8 is a schematic diagram of a structural embodiment of a user information processing module in FIG. 7;

 FIG. 9 is a schematic diagram of another NGN architecture in the prior art; FIG.

 Figure 10 is a schematic diagram showing the internal structure of the NACF in Figure 9.

detailed description

 In the first embodiment of the method of the present invention, after the user connects to the NGN network system, the user information processing module in the NASS of the current network of the user determines whether the user is in the home network HN or the visited network VN (ie, determining whether the current network of the user is HN or VN) If the user is in the VN, the user information processing module of the VN sends the acquired user information, especially the user routing information therein, to the user information processing module of the HN.

In the second embodiment of the method of the present invention: after the user connects to the NGN network system, the user information processing module in the NASS of the current network of the user determines whether the user is in HN or VN (ie), and if the user is in HN, the user information of the HN The processing module sends the obtained user information directly to the SCSA; if the user is in the VN, the user information processing module of the VN will obtain the user information. The user information processing module is sent to the HN, and then the user information processing module of the HN forwards the user information to the SCSA.

 The NGN network system provided by the embodiment of the present invention provides an interface between the visited network VN and the home network HN, so that the SCSA can also obtain user information or index information generated by the user information when the user is in a roaming or nomadic state. .

 The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

 Referring to FIG. 2, it is a flowchart of a method for informing a user of the present invention, which includes the following specific steps:

 In step S01, the user connects to the NASS of the NGN network through the ARF.

 Step S02: The user information processing module in the NASS of the current network of the user obtains user information through the UAAF and the NACF.

 In this step, the user information obtained by the user information processing module may be a user identifier, a user authorization mode, user routing information, a key resource, a network configuration parameter, etc., but in this embodiment, the user information processing module mainly uses the user route. The information determines the network where the user is currently located, and thus the user information includes at least user routing information.

 Step S03, the user information processing module determines the network where the user is located according to the user routing information in the user information. If the user is determined to be in the HN, the user information processing module does not perform any action; if it is determined that the user is in the VN, the user information processing module Go to step S04.

According to the user routing information, the specific implementation manner of the network where the user is currently located is various. For example, one implementation manner is as follows: When the user routing information does not include any network identifier, the default user is in HN; another implementation manner is: when the user When the routing information includes the home network identifier (HNI), the user information processing module determines that the user is currently in the HN. When the routing information includes the visited network identifier (VNI), the user information processing module determines that the user is currently in the VN. . The HM or the VNI may be a direct identifier or an indirect identifier. The so-called direct identifier mainly means that the identifier directly describes the HN or VN information. The so-called indirect identifier mainly means that the identifier may not directly describe the HN or VN information. However, the HN or VN information it represents can be derived from the indirect identification. For example, suppose a visitor network of a user is Beijing, then the VNI in the routing information may be the code of Beijing (this is a direct identifier:), and the VNI may also be a code of Wangfujing (this is an indirect identifier) because the user Information processing module can be based on this Wangfujing generation The code to launch its representative network information is Beijing.

 Therefore, the user information processing module determines, according to the user routing information, that the network is currently implemented in a plurality of manners, and the specific parameters included in the corresponding user routing information are also various, including but not limited to the foregoing. As long as the user information processing module can know whether the user is currently in the home network or the visited network according to the user routing information.

 Step S04, the user information processing module (serving as a server) of the VN sends a notification message to the user information processing module (acting as a proxy) of the HN, and then proceeds to step S05. The content of the notification message is shown in Table 2.

 Table 2

 Notification message (Server -> Agent)

 Globally Unique Address (Globally Unique Address)

 - Assigned IP Address (Assignment IP Address)

 - Address Realm (Address Domain)

 Routing information

 Wherein, the global unique address is assigned by the NACF of the user's network to the user and the IP address

The address field of the IP address is composed. The user routing information indicates at least the information of the network where the user is currently located, which may not include any network identifier (in this case, the default user is currently in the home network), or includes the home network identifier HNI or the visited network identifier VNI. With global unique address and routing information, you can accurately locate the user's location.

 Step S05: The user information processing module of the HN receives and processes the notification message of the user information processing module from the VN, where the notification message carries user information. The processed notification message will be used as an index for subsequent querying user information. If the HN user information processing module receives a new notification message, the original notification message will be refreshed.

 Step S06: The user information processing module of the HN sends an acknowledgement message to the user information processing module of the VN.

 The content of the confirmation message is also the same as the content of the table 2, and its function is to notify the user information processing module of the VN that the HN has received the user-related information determined by the message, and further, the user information processing module of the VN receives the information. After the above confirmation message, there is no need to repeat the notification message.

FIG. 3 is a schematic diagram of the first embodiment of the method of the present invention, when the user is at the VN, an information message is advertised to the user. Order process, including:

 (1) After accessing the network information, the user information processing module of the VN sends a notification message to the user information processing module of the HN to carry the user information.

 (2) The user information processing module of the HN receives and processes the notification message carrying the user information; the specific content of the notification message is shown in Table 2.

 (3) The user information processing module of the HN sends an acknowledgement message to the user information processing module of the VN; the specific content of the acknowledgement message is shown in Table 2.

 It should be noted that, in the foregoing embodiment, the user information processing module of the visited network may advertise the user information to the user information processing module of the home network, and may also be index information generated by the user information, where the index information includes The content can be global unique address, user routing information, user name, query code, etc. specific information that can be indexed to the user. Specifically, after the user information processing module of the visited network acquires the user information, the index information is generated according to the information, and then the index information is notified to the user information processing module of the home network. In addition, in which functional entity the information processing module is specifically configured, there are multiple specific implementation manners, which are related to the specific interface between the home network and the visited network for transmitting user information or index information. For example, if the user information or the index information is advertised by using an interface between the CLF entity of the home network and the CLF entity of the visited network, the user information processing module described in this embodiment may be set in the CLF entity, if the home network is utilized. The user information processing module described in this embodiment may be set in the UAAF entity, and the user information or the index information is advertised by the interface between the UAAF entity and the UAAF entity of the visited network.

 The specific technical solution provided by the first embodiment of the method of the present invention only pays attention to the message transmission between the user information processing module (serving as a server) of the VN and the user information processing module of the HN, and how to use the message after the delivery, there may be multiple Processing plan. One of the processing schemes is to re-advertise the user information transmitted between the two user information processing modules to the SCSA in the home network. For example, the user location information query request may be initiated by a functional entity of the SCSA, and the user of the HN The information processing module notifies the SCSA of the user information provided by the user information processing module of the VN. The SCSA can also register with the home network through the SIP registration process sent by the user in the NGN system, and then the user information processing module in the home network can notify the SCSA of the user information learned from the visited network.

Referring to FIG. 4, it is a flowchart of Embodiment 2 of a method for advertising a user according to the present invention. The following specific steps are included:

 Step S11: The user connects to the NASS of the NGN network through the ARF.

 Step S12: The user information processing module in the NASS of the current network of the user determines whether the current network of the user is a visited network or a home network. If the network where the current user is located is the home network, step S13 is performed; if the network where the current user is located is the visited network, Then step S16 is performed.

 There are a number of ways to determine the network in which the user is located. For example, an integrated circuit card is installed on each mobile user's CPE, and the circuit card has a globally unique code when the CPE with the circuit card is from the home network. When roaming to the visited network, the satellite positioning system detects the status and announces the NACF entity of the NASS of the visited network accessed by the CPE, and then the NACF entity notifies the user routing information to the user information processing module of the visited network, and further, The user information processing module determines, according to the obtained user routing information, that the current network of the user is a visited network. The specific content of the user routing information is: when the user is currently in the HN, the routing information parameter may be an HN identifier (Home

Network Identifier (HNI); can also be a pre-agreed special identifier, or you can set the network identification part to blank to indicate that the user is currently in its HN. When the user is currently in the VN, the routing information parameter may be a Visited Network Identifier (VNI). It is also possible that the foregoing satellite positioning system that detects that the user roams from the home network to the visited network directly informs the user of the user information processing module of the current network, and the user information processing module can determine the current user without obtaining the user information. The network where you are located is visiting the network.

 For example, after the user roams to the visited network, the NACF entity of the NASS in the visited network allocates an IP address to the user and performs network parameter configuration, and sends the information to the user information processing module of the visited network, and further, the user information processing The module determines, according to the obtained information, that the current network of the user is a visited network.

 Step S13: The user information processing module of the HN obtains user information such as user identification, user authorization mode, routing information, key resources, and network configuration parameters from the UAAF and NACF of the HN. Then, the process proceeds to step S14.

An exemplary specific parameter included in the user information is as shown in Table 3, where the globally unique address is determined by the IP address and address field assigned to the user by the NACF of the network where the user is currently located, according to the network where the user is located. Changes may change accordingly. 3

 Notification Message (User Information Processing Module -> SCSA)

 Globally Unique Address (all 3 seeking unique address)

 - Assigned IP Address (Assignment IP Address)

 - Address Realm (Address Domain)

 Routing information

 Subscriber ID (user ID)

 Authorization Method

 Access Network Type

 After the user information processing module of the HN obtains the user information, the user information processing module generates an index message according to the user information, and further sends an index message carrying the index information to a functional entity in the SCSA of the HN. The content included in the index information may be global unique address, user routing information, user name, query code, and the like, which can be indexed to the user. . Then, the process proceeds to step S15.

 Step S15: A functional entity of the SCSA of the HN receives and processes the index message described in step S14, and then sends an index confirmation message to the user information processing module of the HN. The index confirmation message may include information corresponding to the index information in step S14, so that the user information processing module of the HN can specifically know which index message is received by the functional entity of the SCSA, and thus no longer repeats to the functional entity. Send the same index message.

 Step S16: The user information processing module of the VN obtains user information such as user identification, user authorization mode, routing information, key resources, and network configuration parameters from the UAAF and NACF of the VN. Then, the process goes to step S17.

 Step S17: The user information processing module of the VN sends a notification message to the user information processing module of the HN, and carries the user information described in step S16. An exemplary specific parameter of the user information sent in this step is shown in Table 3. Then, the process proceeds to step S18.

Step S18: The user information processing module of the HN receives and processes the notification message carrying the user information sent by the user information processing module of the VN, generates index information according to the user information, and further sends the information to a functional entity in the SCSA of the HN. An index message containing the above index information. The cable The content contained in the information may be global unique address, user routing information, user name, query code, etc., which can be indexed to the user. Then go to step §19.

 Step S19: After receiving and processing the index message, a function entity in the HN SCSA sends an index confirmation message to the user information processing module of the HN. The index confirmation message may include information corresponding to the index information in step S14, so that the user information processing module of the HN can specifically know which index message is received by the function entity, so that the function entity does not repeatedly send the function. The same index message. Then, the process proceeds to step S20.

 Step S20: After receiving the index confirmation message, the user information processing module of the HN forwards the index confirmation message to the user information processing module of the VN.

 FIG. 5 is a signaling signaling process for announcing a user when the user is in the HN, that is, when the user is currently in the HN, the process includes:

 (1) The user information processing module of the HN obtains the user information, and then generates the index information according to the user information, and then sends an index message to a functional entity in the SCSA of the HN;

(2) A functional entity in the SCSA of the HN receives and processes the index message;

 (3) A functional entity in the SCSA of the HN sends an index acknowledgement message to the user information processing module of the HN.

 6 is a signaling signaling process for announcing a user when the user is in the VN, that is, when the current network of the user is V, in the second embodiment of the method of the present invention, including:

 (1) After obtaining the user information, the user information processing module (serving as the server) of the VN sends a notification message to the user information processing module of the HN, where the notification message carries the user information.

 (2) HN's user information processing module (acting as a proxy) receives the above notification

After generating the index information according to this, the index message is sent to a functional entity in the SCSA of the HN. The content included in the index information may be global unique address, user routing information, user name, query code, and the like that can be indexed to the user equipment.

 (3) A functional entity in the SCSA of the HN receives the above index message and processes it.

(4) A functional entity in the SCSA of the HN sends an index acknowledgement message to the user information processing module (acting as a proxy) of the HN;

(5) The user information processing module of the HN (acting as a proxy) forwards the received index confirmation message to the user information processing module (serving as a server) of the visited network V. It should be noted that, when the user is in the VN, the information advertised by the user information processing module to the user information processing module of the HN may be user information or index information. For example, the user information processing module of the VN may first generate index information according to the user information that it knows, and then send the index message to the user information processing module of the HN. In this case, the user information processing module of the HN may directly The index message received by it is forwarded to the corresponding functional entity in SCS A. Moreover, the information sent by the user information processing module of the HN to the corresponding functional entity in the SCSA may be directly the user information itself or the index information generated according to the user information, which is determined by the needs of the SCSA in the actual application.

 In addition, according to the difference between the foregoing two embodiments, the user information processing module of the current network of the user can obtain the user information first, and then determine the current network of the user based on the user routing information in the user information. ; Based on other information (information detected by the satellite positioning system), the user's current network can be determined first, and then the user information can be obtained. In addition, in the methods described in the embodiments of the present invention, the processing of the message is mentioned many times. It should be noted that the processing herein includes various operations such as storage, classification, and selection of the message.

 A person skilled in the art may understand that all or part of the steps in implementing the above method embodiments may be completed by a program instructing related hardware, and the program may be stored in a computer readable storage medium, the storage medium Such as: ROM / RAM, disk, CD, etc.

 The embodiment of the present invention further provides a functional entity respectively set in the home network and the visited network, and the user information or the index generated by the user information is obtained by the functional entity of the visited network and the functional entity in the home network. The information is advertised, and the functional entity includes, but is not limited to, a CLF or a UAAF. The information interaction between the two functional entities is mainly through a respective internal user information processing module.

For example, the foregoing functional entity in this embodiment is specifically a CLF in the network attachment subsystem NASS shown in FIG. 1, and each of the CLFs of the home network and the visited network includes a user information processing module. The internal structure of the user information processing module in the functional entity of this embodiment is further described in detail below. For more disclosure, please refer to FIG. 7 , which is the first functional entity of the home network and the visited network disclosed in the embodiment of the present invention. A schematic diagram of the structure of the user information processing module, and further shown in the figure is a second functional entity of the home network that performs information notification with the home network, and combines the working principle of the user information processing module to further introduce its internal structure. Each user information processing The modules each include a user information acquisition unit 71, a network determination unit 72, a first information notification unit 73, and a second information notification unit 74.

 First, the user information acquiring unit 71 of the current network of the user obtains the user information, for example, the user access authorization function UAAF and the network access configuration function NACF of the NASS. The user information acquisition unit of the network where the user is located can obtain the user information. The user information acquisition unit of the non-user network is unable to obtain the user information. Therefore, the user information acquisition unit in the user information processing module is used in the user information acquisition unit. The network to which the unit belongs is the user information when the user is currently on the network.

 Then, the network determining unit 72 of the network where the user is currently located determines whether the current network of the user is the home network or the visited network according to the user information provided by the user information acquiring unit 71. Specifically, the user information includes at least user routing information indicating the current network of the user, and the network determining unit 72 is specifically a routing information determining unit, where the network to which the unit belongs is the current network of the user. The user routing information in the user information provided by the user information acquiring unit 71 determines whether the current network of the user is the home network or the visited network.

 If the user's current network is the visited network, the user information acquiring unit 71 in the user information processing of the visited network acquires the user information, and the network determining unit 72 also determines, according to the user information, that the current network of the user is the visited network, and thus The user information processing of the visited network continues to notify the user information and the first information notification unit 73 in the home network user information processing module through the internal first information notification unit 73. Further, after the first information advertising unit 73 in the home network user information processing module receives the user information advertised to the network user information processing module, the first information notification unit 74 directly transmits the user information to the home network. The second functional entity (for example, a function of the SCSA) performs information notification. In this case, the first information notification unit 73 and the second information advertisement unit 74 are respectively a first user information notification unit and a second user information notification unit, that is, the user information is advertised.

 In addition, the household information processing module may further set an index information acquiring unit for generating index information according to the user information provided by the user information unit 71. There are two specific ways to use this index information generation unit:

In the first manner, before the user information processing module of the visited network and the user information processing module of the home network perform information notification, the index information generating unit of the visited network generates the user information according to the user information. Index information; then, the first information advertising unit 73 of the visited network notifies the index information with the first information advertising unit 73 of the home network; and further, the second information advertising unit 74 of the home network directly associates the index information with the home information The second functional entity in the network performs information notification. In this case, the first information advertising unit 73 is specifically a first index information advertising unit, and the second information advertising unit 74 is specifically a second index information advertising unit, that is, the index information is advertised.

 In a second manner, the first information advertising unit 73 of the visited network directly advertises the user information provided by the user information acquiring unit 71 with the first information advertising unit 73 of the home network, and then, according to the index information generating unit of the home network, The received user information generates index information, and then the second information notification unit 74 of the home network performs information notification with the second functional entity in the home network. In this case, the first information advertising unit 73 is specifically a first index information advertising unit, and the second information advertising unit 74 is specifically a second index information advertising unit, that is, the index information is advertised.

 If the user's current network is the home network, that is, the user information acquiring unit 71 in the home network user information processing acquires the user information, and the network determining unit 72 in the home network also determines, according to the user information, that the current network of the user belongs to the home network. The network, then, the user information processing module of the home network directly transmits the user information acquired by the user information acquiring unit 71 in the home network and the second functional entity in the home network through the second information advertising unit 74 in the home network. notice. Currently, the index information generating unit in the home network mentioned above may be used to generate the index information of the user information provided by the user information acquiring unit 71 in the home network, and then the second information advertising unit 74 (specifically, the second The index information notification unit) notifies the index information with the second functional entity in the home network.

According to the foregoing functional entity including the user information processing module in the embodiment of the present invention, the present invention further provides an NGN network system embodiment. The schematic diagram of the structure is shown in FIG. 8. The NGN network system in this embodiment includes a home network and a visit. And a network and an interface that joins the home network to the visited network, the interface configured to: transfer user information or index information generated by the user information between the home network and the visited network. The home network and the visited network each include a first functional entity, where the interface is specifically an interface between the first functional entity of the home network and the first functional entity of the visited network, and each of the first functional entities includes a user information processing module. The specific structure of the user information processing module has been described in detail in the foregoing, and therefore will not be described herein again. The working principle of the system is explained only from the level of the user information processing module. For example, if the functional entity is specifically a functional entity (such as a CLF) of the network attachment subsystem NASS, the interface between the home network and the visited network is provided by the user information processing module 81 of the NASS in the home network and the visited network. Specifically, the interface includes a receiving interface and a sending interface. After the user arrives at the visited network, the access relay function entity ARF13 is connected to the AMF 14 of the NASS, so that the user information processing module 81 (serving as a server) of the visited network can obtain user information, and the user information processing module 81 also provides a transmission interface. The notification message carrying the user information is sent to the user information processing module 81 of the home network. The user information processing module 81 (serving as a proxy) of the home network HN provides a receiving interface, and receives the above notification message from the visited network user information processing module 81; meanwhile, the user information processing module 81 of the home network (acting as a proxy) also goes to the HN A functional entity 82 of the SCSA provides a transmitting interface, forwards the notification message or sends an index message generated based on the user information.

 As mentioned above, the parameter passed in the interface between the home network and the visited network may be the foregoing user information, and the specific parameters of the user information are as shown in Table 2, or the user information processing module may use the user according to certain rules. Index message generated by the message.

 In the embodiment of the present invention, the SCSA is located in the home network HN, but this does not mean that the embodiment of the present invention does not support the case where the SCSA is in the visited network V, only because when the SCSA is at V, the SCSA can directly access the user information from the VN. The processing module obtains the required user information. In this case, the user information acquiring unit directly obtains the user information from the UAAF of the NASS; then, the network determining unit determines the current network of the user according to the user routing information carried in the user information; and further, the index information acquiring unit according to the user information Generating specific index information; Finally, information notification is performed to a functional entity of the SCSA through the second information advertising unit. Of course, an information storage unit is generally required for storing the message sent by the user information processing module of the other network and the user information of the local network acquired by the user information acquiring unit. In essence, if the SCSA is in the visited network VN, this situation is similar to the case where the user information processing module of the HN sends a notification message to a functional entity of the SCSA of the HN when the user does not roam.

It should be noted that the foregoing embodiments are described by using an NGN architecture including a NASS as an example. However, the application environment of the embodiments of the present invention is not limited thereto. For example, the same technical solution may be applied to In the prior art shown in FIG. 9, an NGN architecture. When the technical solutions of the embodiments of the present invention are applied to the two architectures shown in FIG. 1 and FIG. 9, the essence thereof Are the same. Specifically, the Network Attachment and Control Functions (NACF) in FIG. 9 corresponds to the network attachment subsystem NASS described in FIG. 1; _ the Service Control Function (SCF) corresponding to FIG. The service control subsystem and application SCSA described in Figure 1.

 Please refer to FIG. 1Q, which is a schematic diagram of the internal structure of NACF in FIG. The Network Access Configuration Function Entity (NACFE) in FIG. 9 corresponds to the NACF entity 15 in FIG. 1; the Authentication & Authorization FE (AAFE) 102 in FIG. The UAAF entity 16 in FIG. 1; the User Profile FE (UPFE) 101 in FIG. 9 corresponds to the PDBF entity 19 in FIG. 1; the Location Management FE (LMFE) in FIG. 105 corresponds to the CLF entity 17 in FIG. 1; the Access Management FE AMFE 103 in FIG. 9 corresponds to the AMF entity 14 in FIG.

 According to the corresponding relationship between the entities in the two different NGN architectures, and the foregoing embodiments of the present invention disclosed for the architecture shown in FIG. 1, it is believed that those skilled in the art can complete the invention for FIG. 9 and FIG. The technical solutions of the various embodiments are therefore not described again.

 In summary, the technical solutions provided by the embodiments of the present invention enable the transmission of user information or index information between the visited network and the home network, so that a functional entity in the SCSA is used regardless of whether the user equipment is in the visited network or the home network. Ability to accurately obtain the user information needed. For the same reason, the system embodiment provided by the present invention defines an interface and configures interface parameters between the user information processing module of the user visited network and the user information processing module of the home network, so that the user equipment is in the visited network and the home network, SCSA A functional entity in the middle can accurately obtain the required user letter

Only a small amount of user information parameters need to be transmitted in the interface between the home network and the visited network. Therefore, there are few changes to the existing network and the implementation is simple. The spirit and scope of the Ming. Thus, it is intended that the present invention cover the modifications and variations of the inventions

Claims

Rights request

 A method for advertising information of a user, the method comprising:

 The first functional entity of the network where the user is currently located acquires the user information;

 The first functional entity is determined by the user information that the current network of the user is a visited network, and the first functional entity of the visited network uses the user information or the index information generated by the user information and the home network. A functional entity conducts information notification.

 The method according to claim 1, wherein the user information includes at least user routing information indicating that the user is currently on the network, and the step of determining, according to the user information, that the current network of the user is the visited network is specifically It is determined according to the user routing information in the user information.

 3. The method of claim 1 or 2, wherein

 The step of acquiring the user information by the first functional entity is specifically that the user information processing module in the first functional entity acquires the user information, and the step of determining, by the first functional entity, the current network is specifically in the first functional entity. The user information processing module determines the current network, and the first functional entity of the visited network and the first functional entity of the home network perform information notification, specifically the user information processing module and the home network in the first functional entity of the visited network. The user information processing module in a functional entity performs information notification.

 4. A method for advertising information of a user, the method comprising:

 The first functional entity of the network where the user is currently located acquires the user information;

 Determining, by the first functional entity, the current network of the user according to the user information;

 If the current network of the user is the home network, the first functional entity of the home network notifies the user information or the index information generated by the user information and the second functional entity of the home network;

 If the current network of the user is a visited network, the first functional entity of the visited network uses the first functional entity of the home network as an intermediate agent to use the user information or the index information generated by the user information and the home network. The second functional entity performs information notification.

The method of claim 4, wherein the user information includes at least user routing information indicating that the user is currently located in the network, and the step of determining the current network of the user according to the user information is specifically based on The user routing information in the user information determines the current network of the user, and the first node determines the current network of the user according to the user routing information in the user information. The process includes:

 When the user routing information does not include any network identifier, it is determined that the current network of the user is the home network; when the user routing information includes the visited network identifier, it is determined that the current network of the user is the visited network;

' or

 When the user routing information includes the home network identifier, it is determined that the current network of the user is the home network; when the routing information includes the visited network identifier, it is determined that the current network of the user is the visited network.

 The method according to claim 4, wherein the first functional entity of the visited network uses the first functional entity of the home network as an intermediate proxy to generate the user information or index information generated by the user information. The specific process of performing information advertisement with the second functional entity of the home network includes: the first functional entity of the visited network sends the user information to the first functional entity of the home network; the first functional entity of the home network is received according to the received The user information generates index information, and sends the information to the second functional entity of the home network;

 Or

 The first functional entity of the visited network sends the user information to the first functional entity of the home network; the first functional entity of the home network forwards the received user information to the second functional entity of the home network;

 Or

 The first functional entity of the visited network generates index information according to the user information, and sends the information to the first functional entity of the home network; the first functional entity of the home network forwards the received index information to the The second functional entity of the home network.

The method according to any one of claims 4 to 6, wherein the step of acquiring the user information by the first functional entity is specifically that the user information processing module in the first functional entity acquires the user The step of determining, by the first functional entity, the current network, the user information processing module in the first functional entity determines the current network, and the first functional entity of the visited network and the first functional entity of the home network perform information. The notification is specifically performed by the user information processing module in the first functional entity of the visited network and the user information processing module in the first functional entity of the home network.

A method for advertising information of a user, the method comprising: determining that a network where the user is currently located is a visited network;

 The first functional entity of the visited network acquires the user information;

 The first functional entity of the visited network notifies the user information or the index information generated by the user information with the first functional entity of the home network.

 The method according to claim 8, wherein the step of determining that the network currently located by the user is a visited network is specifically determining that the current network of the user is the visited network according to the information advertised by the satellite positioning system.

 A method for advertising information of a user, the method comprising: determining a network where a user is currently located;

 If the current network of the user is the home network, the first functional entity of the home network acquires user information, and performs the user information or the index information generated by the user information with the second functional entity of the home network. Information notice

 If the current network of the user is a visited network, the first functional entity of the visited network acquires user information, and generates the user information or the user information by using a first functional entity of the home network as an intermediate agent. The index information is advertised with the second functional entity of the home network.

 The method according to claim 10, wherein the first functional entity of the visited network uses the first functional entity of the home network as an intermediate agent to generate the user information or index information generated by the user information. The specific process of information advertised with the second functional entity of the home network includes: the first functional entity of the visited network sends user information to the first functional entity of the home network; the first functional entity of the home network is based on the received user The information generates index information, and sends the information to the second functional entity of the home network;

 Or

 The first functional entity of the visited network sends the user information to the first functional entity of the home network; the first functional entity of the home network forwards the received user information to the second functional entity of the home network;

Or the first functional entity of the visited network generates the index information according to the user information, and sends the index information to the first functional entity of the home network; the first functional entity of the home network forwards the received information of the cable 1 to the The second functional entity of the home network.

12. A functional entity that implements information for announcing a user, wherein the functional entity includes a user information processing module, and the user information processing module specifically includes:

 a user information obtaining unit, configured to acquire the user information when the network to which the unit belongs is the current network of the user;

 a network determining unit, configured to determine, when the network to which the unit belongs, the current network of the user, whether the current network of the user is a home network or a visited network;

 The first information advertising unit is configured to perform information notification according to the user information provided by the user information acquiring unit and the functional entity of the home network when the network determining unit determines that the network currently located by the user is the visited network.

 13. The functional entity as claimed in claim 12, wherein the user information at least includes user routing information indicating a current network of the user,

 The network determining unit is specifically a routing information determining unit, configured to determine, according to the user routing information in the user information provided by the user information acquiring unit, that the current network of the user belongs to the home when the network to which the unit belongs is the current network of the user. The network is still visiting the network.

 The functional entity of claim 12, further comprising:

 a second information advertising unit, configured to: when the network to which the unit belongs is the home network, perform information notification according to the user information provided by the user information acquiring unit or the user information learned from the visited network and another functional entity of the home network .

 The functional entity according to any one of claims 12 to 14, further comprising:

 An index information obtaining unit, configured to generate an index information according to the user information provided by the user information unit, where the first information advertising unit is specifically a first user index information advertising unit, configured to determine, in the network determining unit, that the current network of the user is a visit In the network, the index information provided by the index information acquiring unit is notified with the functional entity of the home network.

16. A network system for enabling information to advertise a user, comprising a home network and a visited network, further comprising an interface coupling the home network to the visited network, the interface being configured to: User information or index information generated by the user information is transmitted between the home network and the visited network.

The system according to claim 16, wherein the home network and the visited network each comprise a first functional entity, and the interface is specifically between the first functional entity of the home network and the first functional entity of the visited network. Interface,

 Each of the first functional entities includes a user information processing module, and the user information processing module specifically includes:

 a user information obtaining unit, configured to acquire the user information when the network to which the unit belongs is the current network of the user;

 a network determining unit, configured to determine, when the network to which the unit belongs, the current network of the user, whether the current network of the user is a home network or a visited network;

 The first information advertising unit is configured to perform information notification according to the user information provided by the user information acquiring unit and the functional entity of the home network when the network determining unit determines that the network currently located by the user is the visited network.

 The system of claim 16 or 17, wherein the user information processing module further comprises:

 a second information advertising unit, configured to: when the network to which the unit belongs is the home network, perform information notification according to the user information provided by the user information acquiring unit or the user information learned from the visited network and another functional entity of the home network .