WO2006099816A1

WO2006099816A1 - Method and system for providing presence information to presence system by wlan

Info

Publication number: WO2006099816A1
Application number: PCT/CN2006/000504
Authority: WO
Inventors: Wenlin Zhang; Chang Duan; Peng Zhang; Chengzhen Sun
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2005-03-24
Filing date: 2006-03-24
Publication date: 2006-09-28
Also published as: CN1794703A; CN100337458C

Abstract

A method for providing presence information to presence system by WLAN comprises the following steps: presence information monitoring collector obtaining presence information after or in the course of WLAN user accessing the network; presence information monitoring collector sending apart or whole of the obtained presence information to presence service system entity. A system for providing presence information to presence system by WLAN is also provided in the invention. And the said method and system execute the obtaining of WLAN user terminal information and relevant information, and provide the required presence information to the presence system, make the presence service system to obtain user status more detailedly, and accordingly , provide better service.

Description

Method and system for providing presence information to a presentation system by a wireless local area network

The present invention relates to a wireless local area network information presentation technology, and more particularly to a method and system for providing presence information to a presentation system by a wireless local area network. Background of the invention

In a mobile communication network or an Internet network, a presence service is a network that manages presentation information of a user terminal, such as a contact mode of a user terminal, a current state, device information of a user terminal, service, and service component information. The user terminal, the device of the user terminal, the service, and the service component may all be referred to as a presence entity. The PRESENCE service provides the above information to different viewers ( Watcher) according to pre-defined rules. The observer can actively request information of a presenting entity, which is simply referred to as presenting information, or is scheduled to be notified once the information changes.

For example: User A arrives at the office, he can set the presence information for the phone to close, the office phone is available, and Email is available. The PRESENCE service provides the following information to User B as an observer: User A phone is off, office phone is available, and Email is available. When User B needs to contact User A, he can make an office call or send an email.

The information of the presenting entity may be manually set by the user terminal or may be provided through a network, and the user terminal may set the providing rule and range of the information. For example, user B needs to talk with user A, and can set the status information of the predetermined user A, and notify user B once the user A information is changed to the power-on state. For example, when user A is actually powered on, the system checks the rules set by user A. The information can be provided to user C, but cannot be provided to user B. The PRESENCE system refreshes the information provided to user C, and the information provided to user B is maintained. constant. Wireless LAN (WLAN), as a complement to mobile communication networks, includes a number of different technologies. According to the frequency band used, the IEEE 802.11b technical standard and Bluetooth technology are used for communication in the 2.4 GHz band. Communicating in the 5 GHz band, there are IEEE 802.11a technical standards and ETSI BRAN Hiperlan 2 technical standards. The WLAN here is a broad concept, including both the IEEE 802.11 protocol family and the other networks that provide wireless communication capabilities, such as Hiplan, IEEE 802.16 protocol suite, and so on.

Most WLANs are used to transport IP packet data packets. For a wireless IP network, the basic structure is to use the access point (AP) and the access control unit (AC) to complete the wireless access of the user terminal, and to form an IP transmission network through the network control and the connected device connection. The WLAN access technology is generally transparent to the upper layer IP.

The WLAN can interact with a variety of other network connections, such as the Internet, or a third-generation (3G) mobile communication network, or other private network connection, and one or more of the connections can be used by the user terminal.

With the rise and development of WLAN technology, WLAN and various wireless mobile communication networks, such as: Global System for Mobile Communications (GSM), Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, time division duplexing - Interworking of synchronous code division multiple access (TD-SCDMA) systems, CDMA2000 systems, etc. is becoming the focus of current research. In the 3rd Generation Partnership Project (3GPP) standardization organization, the system is called 3GPP-WLAN interworking system, and the user terminal can be connected to the Internet (Internet) or intranet (Intranet) through the access network of the WLAN. The access network is connected to the 3GPP system via a WLAN access network (WLAN AN). Specifically, when the WLAN user terminal accesses locally, it connects to the home network of the 3GPP through the WLAN access network; when roaming, connects to the access network of the 3GPP through the WLAN access network, and some entities in the 3GPP access network respectively Interconnecting with corresponding entities in the 3GPP home network, such as: 3GPP Authentication, Authorization and Accounting (AAA) proxy in 3GPP access network and 3GPP authentication in 3GPP home network, Authorization and Accounting (AAA) server (server); the wireless local area network access gateway (WAG) in the 3GPP access network is interconnected with the Packet Data Gateway (PDG) in the 3GPP home network.

For a presentation entity in a mobile telecommunications network or the Internet, for example: a user terminal, an observer can obtain its presence information through the PRESENCE service system; and for a presentation entity in a wireless local area network, for example: a user terminal, the applicant proposes a A method and system for implementing information interaction between a wireless local area network user terminal, as shown in FIG. 1, the information presentation process includes: 1. The PRESENCE service system entity receives an observer's query request; 2. Then sends a query request message to the WLAN system to present information monitoring. The WLAN system presents the information monitoring and collecting unit to collect the current presentation information of the presenting entity, such as the WLAN user terminal, by interacting with the WLAN user terminal; 4. The WLAN system presenting the information monitoring and collecting unit notifies the collected information of the collected information to the PRESENCE The service system entity; 5. The PRESENCE service system entity returns a response to the WLAN system to present an information monitoring acquisition unit.

The prior art only proposes a method for providing presence information of a presence entity such as a WLAN user terminal in a wireless local area network to a PRESENCE service system entity, but how to obtain information of the user terminal and which information is not provided, so that the PRESENCE service system It is impossible to know the user terminal information such as the current state of the user terminal, and it is unable to provide a more comprehensive service for the user or the observer, and restricts the subsequent operations. Summary of the invention

In view of this, the main object of the present invention is to provide a method for providing presence information to a presentation system by using a wireless local area network, obtaining acquisition of a user terminal and related information, and providing required presentation information to a presentation system to enable a presence service. The system is able to get the user status more closely, thus providing a more comprehensive service.

Another object of the present invention is to provide a wireless local area network to provide presentation to a rendering system. The information system realizes the acquisition of the user terminal and related information, and provides the required presentation information to the presentation system, so that the presentation service system can obtain the user status in more detail, thereby providing a more comprehensive service.

A method for providing presence information to a presentation system by a wireless local area network, and setting a presence information monitoring and collecting unit, the method comprising:

a presentation information monitoring acquisition unit obtains presentation information;

b. The presence information monitoring collection unit sends part or all of the obtained presence information to the presentation service system entity.

The presence information monitoring acquisition unit belongs to a packet data gateway;

Before the step a, the method further includes: the wireless office user terminal initiating a network access request to the packet data gateway;

The network access request is a tunnel establishment request;

The method for obtaining the presence information in the step a is: the packet data gateway performs a tunnel establishment process, and acquires user information, and/or tunnel information, and/or a wireless local area network user during the tunnel establishment process or after the tunnel is established. Terminal status information.

The presence information monitoring and collecting unit belongs to the authentication, authorization, and accounting server. Before the step a, the method further includes: the wireless local area network user terminal initiating a network accessing the packet switching domain network to the packet data gateway or the wireless local area network access gateway. An access request; the network access request is a tunnel establishment request;

The method for obtaining the presence information in the step a is: after the packet data gateway/wireless local area network access gateway receives the tunnel establishment request from the wireless local area network user terminal, sending the authentication/authorization to the authentication, authorization, and accounting server. Requesting, obtaining authentication and authorization information for establishing a tunnel, the authentication, authorization, and accounting server acquiring user information, and/or tunnel information, and/or routing information, and/or a wireless local area network user during tunnel establishment Terminal status information. The presence information monitoring and collecting unit belongs to the authentication, authorization, and accounting server. Before the step a, the method further includes: the wireless local area network user terminal initiating a network access request to the authentication, authorization, and accounting server;

The network access request is an authentication/authorization request;

The process of obtaining the presence information in step a is: the authentication, authorization, and accounting server receives a wireless local area network user terminal authentication/authorization request from the wireless local area network access network, and obtains routing information, and/or in the authentication and authorization process. Or user information; or, after performing the authentication and authorization process, obtaining user information, and/or wireless local area network user terminal status information.

The presence information monitoring acquisition unit belongs to a home location register or a home subscription user server;

Before the step a, the method further includes: the wireless local area network user terminal initiating a network access request for accessing the packet switched domain network to the packet data gateway;

The network access request is a tunnel establishment request;

The method for obtaining the presence information in the step a is: after receiving the tunnel establishment request from the WLAN user terminal, the packet data gateway sends an authentication/authorization request to the home location register or the home subscription user server, and obtains the Establishing authentication and authorization information of the tunnel, the home location register or the home subscriber server obtains user information, and/or tunnel information, and/or WLAN user terminal status information in the tunnel establishment process and saves the information.

The presence information obtained in the step a includes: user information, situation information of accessing the packet switched domain, tunnel information, routing information, and status information of the wireless local area network user terminal;

The user information includes: a WLAN user terminal identifier, a user identifier, and the like; wherein the WLAN user terminal identifier includes: a media access control layer address, an international mobile device identifier, and a dedicated identifier allocated by the operator and the device manufacturer to the user. Identification, IP address;

The information about accessing the packet switched domain includes: the wireless office where the WLAN user terminal is located The identifier of the domain network access network, the visited public land mobile network PLMN identity accessed by the WLAN user terminal, the current WLAN user terminal identity and/or the user identity, and the WLAN user terminal state information; the WLAN user terminal identifier includes : media access control layer address, international mobile device identifier, carrier-specific identification, IP address assigned to the user by the device manufacturer;

The tunnel information includes: the number of tunnels corresponding to the name of the currently activated WLAN access point, the tunnel identifier, the WLAN access point name and the tunnel corresponding state, the corresponding service type, the service quality parameter of the tunnel, and the security association;

The routing information includes: a currently activated WLAN access point name, a wireless local area network access gateway identifier, a visited network public land mobile network PLMN identity accessed by the WLAN user terminal, and an identifier of the WLAN access network;

The wireless local area network user terminal status information includes an attachment status information and a separation status information.

The tunnel information further includes: a packet data gateway address that accesses the tunnel, and

WLAN user terminal identity and/or user identity.

The tunnel identifier is a name of a wireless local area network access point used when requesting to establish a tunnel, or a specific identifier of an end-to-end tunnel between a wireless local area network user terminal and a packet data gateway corresponding to the tunnel;

Or security association;

Or other identifiers associated with the tunnel;

Or any combination of the above.

The obtaining process of the number of tunnels includes: setting a tunnel number counter in the presence information monitoring and collecting unit;

Corresponding to the same WLAN access point name, the number of tunnels will be calculated after each new tunnel is created. The counter value of the counter is incremented by one. After each tunnel is removed, the count value of the tunnel number counter is decremented by one, and the current count value of the tunnel number counter is saved as the number of tunnels corresponding to the access point name.

The method further includes: setting a counting threshold for the tunnel number counter, and if the counting value of the tunnel number counter is greater than or equal to the threshold, the presence information monitoring and collecting unit sends the tunnel information;

Or if the count value of the tunnel number counter is less than or equal to the threshold, the presence information monitoring and collecting unit sends the tunnel information.

The presence information obtained in step a includes: user information of the wireless local area network user terminal, tunnel information, status information of the wireless local area network user terminal, status information of the access packet switching domain, tunnel information, and routing information;

The step a further includes: saving the obtained presence information; the saving specifically includes: the user information obtained in the same tunnel establishment process, the situation information of the access packet switching domain, the tunnel information, the routing information, and the wireless local area network user terminal. Status information - save accordingly.

In the step b, the presence information monitoring and collecting unit sends part or all of the obtained presence information to the presentation service system entity according to the needs of the presentation service system entity;

If the presence information to be sent is that the user terminal currently activates the tunnel accessing the packet switched domain service, the presence information monitoring and collecting unit determines whether the stored user information of the wireless local area network user terminal corresponds to the tunnel information, and if yes, Transmitting, to the presence service system entity, information that the tunnel accessing the packet switched domain service has been activated, otherwise transmitting information to the presence service system entity that has not activated the tunnel accessing the packet switched domain service;

If the presence information to be sent is the tunnel usage information of the WLAN user terminal accessing the packet switched domain service, the presence information monitoring and collecting unit searches for the saved tunnel information according to the user information of the user terminal, and determines the tunnel information according to the tunnel information. Tunnel establishment and demolition The situation, and the service information corresponding to the tunnel, and the result is sent to the presence service system entity. The information sent to the presence service system entity further includes: a wireless local area network access point name used by the wireless local area network user terminal; or a tunnel identifier; or a tunnel related identifier; or a wireless local area network access adopted by the wireless local area network user terminal The number, status, and service information of the tunnel corresponding to the name, and the status information of the WLAN user terminal.

In the step b, if the presence service system entity needs to identify the packet switched domain service supported by the wireless local area network (the user terminal), the presence information monitoring and collecting unit sends the tunnel identifier in the tunnel information corresponding to the user terminal to the presence service. System entity.

In the step b, if the present service system entity needs to know the current location of the WLAN user terminal and the packet switched domain service that the visited network can provide to the user terminal, the presence information monitoring and collecting unit will display the WLAN. The situation information of the access packet switching domain corresponding to the user terminal is sent to the presence service system entity.

In the step b, if the presence service system entity needs to know the tunnel quality assurance and security information of the WLAN user terminal accessing the packet switched domain service, the presence information monitoring and collecting unit will be in the tunnel information corresponding to the user terminal. The quality of service parameters of the tunnel are sent to the presence service system entity.

The authentication, authorization, and accounting server is a 3GPP authentication, authorization, and accounting server. The security association includes an IPSec security association or an Internet key exchange security association. The step a and the step b further include: the presence information monitoring and collecting unit determines whether the current tunnel establishment is successful, and if yes, performs step b.

The step a and the step b further include: the presence information monitoring and collecting unit determines whether the current LAN access authentication and the authorization are successful, and if yes, executing step b.

In the step a, the method for obtaining the presence information is: the presence information monitoring and collecting unit is acquired during or after the access of the wireless local area network user terminal to the network.

The presence information monitoring and collecting unit is an independent network entity, or belongs to the participating network for accessing Or the network side entity of the authentication/authentication process.

A system for providing presence information to a presentation system, the system comprising a presence service system entity, the system further comprising: a presence information monitoring acquisition unit, configured to acquire presence information, and send part or all of the obtained presence information to A presentation business system entity in the presentation system.

The presence information monitoring and collecting unit acquires the presence information by using a process in which the wireless local area network user terminal accesses the network.

The presence information monitoring collection unit is an independent network entity or a network side entity in a wireless local area network participating in a network access or authentication/authentication process.

The network side entity participating in the network access or authentication/authentication process is: a packet data gateway

/Wireless LAN access gateway, or AAA server, or home location register/home subscription user server.

As can be seen from the above, the wireless local area network provided by the present invention provides a presentation system with a presentation information. The presence information monitoring and collection unit of the WLAN system uses a wireless local area network user terminal to access the network, such as a tunnel establishment process, or authentication, Authorization process, to obtain a WLAN user terminal, access to a packet switched domain, routing information, WLAN user terminal status information, tunnel related information, etc., and convert it into presence information and send it to the presentation service system entity as needed The rendering service system can obtain the user status in more detail, provide a more comprehensive service for the user or the observer, expand the use scope of the presentation service, and enhance the ability of the presentation service system to provide the service. The presence information monitoring and collecting unit of the WLAN system may be an independent entity; or may be a network side entity belonging to a packet data gateway, an AAA server, a home location register (HLR), or a home subscriber network (HSS) in the network side, that is, The presence information monitoring acquisition unit exists as a functional module of the network side entity. BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic diagram of an interaction process of a presentation system for acquiring presence information in the prior art; FIG. 2 is a schematic diagram of an interaction process of the presence information presentation acquisition unit providing presentation information to the presentation system during the tunnel establishment process;

3 is a schematic diagram of a presentation information providing process according to a first preferred embodiment of the present invention; FIG. 4 is a schematic diagram of a presentation information providing process according to a second preferred embodiment of the present invention; FIG. 5 is a third preferred embodiment of the present invention; A schematic diagram of the presentation information providing process. Mode for carrying out the invention

The present invention is applicable to a mobile network and a WLAN interworking network typified by a 3GPP-WLAN interworking system, and a similar system includes a 3GPP2-WLAN interworking system and the like.

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The system for providing presence information to the presentation system of the present invention includes a presentation service system entity, and further includes: a presence information monitoring acquisition unit, configured to acquire presence information, and send part or all of the obtained presentation information to the presentation in the presentation system. Business system entity. The presence information monitoring and collecting unit obtains the presence information by using a process in which the wireless local area network user terminal accesses the network.

The presence information monitoring and collecting unit of the WLAN system may be a network participating in the network access or authentication/authentication process such as a packet data gateway/wireless local area network access gateway, an AAA server, a home location register (HLR), or a home subscriber network (HSS). A component of the side entity, that is, the presence information monitoring and collecting unit of the WLAN system belongs to the PDG, the AAA server, and the HLR/HSS; and the presence information monitoring unit may also be an independent network entity.

2 is a schematic diagram of an interaction process in which a presence information monitoring and collecting unit provides presence information to a presence system during a tunnel establishment process, as shown in FIG. 2, where the process of accessing a network by a wireless local area network user terminal is assumed to be a tunnel establishment process. Information collection and delivery method Includes the following steps:

Step 201: Perform a normal tunnel establishment process between the network side entity, such as a packet data gateway and a WLAN user terminal, including an authentication and authorization process.

Step 202: The presence information monitoring and collecting unit in the WLAN collects and acquires the information including the user information, the information about the access packet switching domain, the tunnel information, the routing information, and the state information of the WLAN user terminal during the tunnel establishment process. information.

The above presentation information may be provided one or more according to requirements.

The user information includes: a WLAN user terminal identifier, a user identifier, and the like; wherein the WLAN user terminal identifier includes: a media access control layer address, an international mobile device identifier, and a dedicated identifier allocated by the operator and the device manufacturer to the user. Identification, IP address.

The information about the access to the packet switched domain includes: an identifier of the WLAN access network where the current user terminal is located, an identifier of the visited public land mobile network (PLMN) accessed by the WLAN user terminal, the WLAN user terminal identifier, and/or the user. Identification, IP address, etc.

The routing information includes a WLAN access gateway identifier, a WLAN access point name (W-APN, WLAN Access Point Name), a visited network public land mobile network (PLMN) identifier accessed by the WLAN user terminal, and a WLAN access network. Logo, etc.

The WLAN user terminal status information includes status information corresponding to the WLAN user terminal, such as: attach status, detach status information, and the like.

The tunnel information includes: the number of tunnels corresponding to the W-APN, the tunnel identifier, the name of the access point and the corresponding state of the tunnel, the corresponding service type, the quality of service parameter of the tunnel, the packet data gateway address accessing the tunnel, and the security association. (SA, Security Association), WLAN user terminal identity and/or user identity, etc.

The tunnel identifier may be a WLAN user terminal identifier and/or a user identifier corresponding to the tunnel, and a name of a wireless local area network access point used when requesting to establish a tunnel; or a wireless local area network user terminal and a packet corresponding to the tunnel. Data gateway between A specific identifier of the end tunnel; or other identifiers or combinations related to the tunnel, such as IPSec SA (IPSec Security Association) or Internet Key Exchange Security Association (IKE Key) Or it can be any combination of the above.

The process of obtaining the number of tunnels in the tunnel information includes: setting a tunnel number counter in the presence information monitoring and collecting unit; corresponding to the same W-APN, adding 1 to the count value of the tunnel number counter after each new tunnel is created, and each service tunnel is removed. After that, the count value of the tunnel number counter is decremented by 1, and the current count value of the tunnel number counter is saved as the number of tunnels corresponding to the access point name. If necessary or according to the operator's operation management or user needs, business management needs, you can set a threshold for the counter, and determine whether the number of tunnels is higher than, lower than or equal to the threshold. Whether the information monitoring acquisition unit sends tunnel information. For example, the counting threshold is set for the number of tunnel counters. If the count value of the tunnel number counter is greater than or equal to the threshold, the presence information monitoring and collecting unit sends the service tunnel information; or if the count value of the tunnel number counter is less than or equal to the threshold, The information monitoring collection unit sends the tunnel information.

And preferably, when the storage is performed, the user information obtained during the same tunnel establishment process is stored correspondingly to the information about the access to the PS domain, the tunnel information, and the state information of the wireless local area network user terminal.

Step 203: The presence information monitoring collection unit sends a notification of the current presence information of the user to the presentation service entity according to the requirement.

The step 203 is performed after the tunnel is successfully established. Therefore, before the step 203 is performed, the information monitoring and collecting unit first determines whether the current tunnel establishment is successful. If yes, the step of performing 203 is performed. Otherwise, the process is skipped.

The content of the notice may include:

a) whether the WLAN user terminal activates a tunnel accessing the 3GPP PS domain service; If the presence information to be sent is that the user terminal is currently activated to access the tunnel of the 3GPP PS domain service, the presence information monitoring and collecting unit determines whether the saved user information of the WLAN user terminal corresponds to the tunnel information, and if yes, The presence service system entity sends information that the tunnel accessing the PS domain service has been activated. Otherwise, the information of the tunnel that has not activated the access to the PS domain service is sent to the presence service system entity.

b) The tunnel usage of the WLAN user terminal to access the 3GPP PS domain service, including but not limited to the following information: tunnel establishment and tunnel removal, service information corresponding to the tunnel, etc.; if the presence information to be sent is a wireless local area network user terminal After the tunneling of the 3GPP PS domain service is performed, the information monitoring and collecting unit searches for the saved tunnel information according to the user information of the WLAN user terminal, and determines the establishment and removal of the tunnel according to the tunnel information, and the service information corresponding to the tunnel. The result is sent to the presence business system entity.

And the information to be sent may further include the tunnel information, where the tunnel information may be a W-APN, or a tunnel identifier, or a tunnel-related identifier used by the WLAN user terminal, or a W-APN corresponding to the WLAN user terminal. The number, status, and service information of the tunnel.

c) a tunnel identifier of the WLAN user terminal accessing the 3GPP PS domain service;

If the presence service system entity needs to identify the 3GPP PS domain service supported by the WLAN user terminal, the presence information monitoring and collecting unit sends the tunnel identifier in the tunnel information corresponding to the user terminal to the presence service system entity. The tunnel identifier here may be the user identifier of the WLAN user terminal corresponding to the tunnel and the name of the WLAN access point used to establish the tunnel; or the end of the WLAN user terminal and the packet data gateway corresponding to the tunnel. A specific identifier of the end tunnel; or other identifier or combination related to the tunnel, such as IKE SA; or any combination of the above.

d) a visited network public land mobile network (PLMN) identity of the WLAN user terminal accessing the 3GPP PS domain service, an identifier of the WLAN access network, and the like; If the presence service system entity needs to know the current location of the WLAN user terminal and the 3GPP PS domain service that the network can provide to the user terminal, the presence information monitoring and collecting unit corresponds to the user terminal corresponding to the visited network PLMN identifier. Information about the access PS domain, such as the identity of the WLAN access network, is sent to the presence service system entity.

e) the number of tunnels that the WLA user terminal accesses the 3GPP PS domain service;

Here, the statistics of the number of tunnels can be realized by setting a tunnel number counter in the presentation information monitoring and collecting unit.

f) Tunnel quality assurance and security information for WLAN user terminals accessing 3GPP PS domain services

If the presence service system entity needs to know the tunnel quality assurance and security information of the WLAN user terminal accessing the packet switched domain service, the presence information monitoring and collecting unit will provide the service quality of the tunnel in the tunnel information corresponding to the WLAN user terminal. The parameters are sent to the presence service system entity.

g) The PDG address of the tunnel in which the WLAN user terminal accesses the 3GPP PS domain service.

The above information can be sent according to different needs, or multiple items can be sent to the presentation system entity at the same time.

Step 204: The rendering service system returns a response to the presence information monitoring collection unit.

The present invention is further described in detail below by taking the presence information monitoring and collecting unit as a PDG or AAA server as an example.

Example 1:

FIG. 3 is a schematic diagram of a presentation information providing process according to a first preferred embodiment of the present invention. Referring to FIG. 3, in a first preferred embodiment of the present invention, it is assumed that a WLAN system presents an information monitoring and collecting unit belonging to a PDG, and a wireless local area network user. The process of the terminal accessing the network is a tunnel establishment process. The specific information presentation process includes the following steps:

Step 301: The WLA user terminal (WLAN HE) is based on a domain name server (DNS) For the parsing of the requested W-APN, a service tunnel establishment request is initiated to the PDG corresponding to the W-APN. The tunnel establishment request includes user information, tunnel information, or WLAN user terminal status information, such as the user identifier, the terminal identifier, the W-APN, the SA, and the attachment/separation status.

Step 302: After receiving the tunnel establishment request, the PDG extracts user information, tunnel information, or WLAN user terminal status information, such as user identifier, terminal identifier, W-APN, SA, and attachment/separation status, and saves the information.

Step 303: The PDG sends an authentication/authorization request message to the 3GPP AAA Server. Step 304 to step 305: The authentication and authorization process of the service tunnel establishment between the WLAN UE, the PDG, and the 3GPP AAA Server, and the PDG saves the tunnel related information through the interaction in the tunnel establishment process.

Step 306: After the tunnel is successfully established, the PDG sends a tunnel establishment success response to the WLAN UE.

Step 307: The PDG sends a current user information notification to the PNA (Presence Network Agent) as a presence service system entity, including: a situation of accessing the PS domain service, a tunnel situation, etc., for example: PDG Address, user ID, terminal IP address, tunnel ID, W-APN, tunnel activation status, number of tunnels, and QoS and service type of the tunnel.

Step 308: After receiving the notification of the presence information, the PNA returns a response to the PDG, and converts the received parameter into content to be presented by the presentation system.

Example 2:

4 is a schematic diagram of a presentation information providing process according to a second preferred embodiment of the present invention. Referring to FIG. 4, in another preferred embodiment of the present invention, it is assumed that a WLAN system presentation information monitoring and collecting unit belongs to a 3GPP AAA server (3GPP). AAA Server), the process of accessing the network by the WLAN user terminal is a tunnel establishment process. The specific information presentation process includes the following steps Step:

Step 401: The WLAN UE initiates a tunnel establishment request to the PDG corresponding to the W-APN according to the resolution of the requested W-APN by the DNS. The tunnel establishment request includes user information, tunnel information, or WLAN user terminal status information, such as the user identifier, terminal identifier, W-APN, SA, and attachment/separation status.

In addition, according to different network configurations, in another implementation manner of this step, the WLAN UE may also send a tunnel establishment request to the WLAN access gateway.

Step 402: After receiving the tunnel establishment request, the PDG sends an authentication/authorization request message to the 3GPP AAA Server, where the message carries user information, tunnel information, or WLAN user terminal status information, such as "W-APN, user identifier, and/or Information such as terminal identification, attachment/separation status, etc.

If the tunnel establishment request of the WLAN UE is sent to the WLAN access gateway, this step may send an authentication/authorization request message to the 3GPP AAA Server by the WLAN access gateway. The message carries user information, tunnel information, or WLAN user terminal status information, such as user identification, W-APN parameters, attachment/separation status, and the like, and also includes routing information such as a WLAN access gateway identifier.

Steps 403 to 404: The PDG and the 3GPP AAA Server perform the authentication and authorization process for establishing the service tunnel with the WLAN UE. The device obtains the presence information of the current WLAN UE in the process of establishing the authentication and authorization of the tunnel, including: The case of the tunnel, for example, the user ID and the currently activated W-APN, the number of tunnels corresponding to the W-APN, the identifier, the corresponding service type, the QoS parameters of the tunnel, the identifier of the network where the user is located, and the like.

Step 405: The 3GPP AAA Server sends a success message to the WLAN UE after the tunnel establishment authentication succeeds.

Step 406: The 3GPP AAA Server sends a notification of the current presence information of the user to the PNA, including: a situation of accessing the PS domain service, a situation of the tunnel, and the like, for example: user identifier, current The activated W-APN, the number of tunnels corresponding to the W-APN, the tunnel identifier, the terminal IP address, the service type, the QoS parameters of the tunnel, and the identifier of the network where the user is located.

Step 407: After receiving the notification of the presence information, the PNA returns a response to the PDG, and converts the received parameter into content to be presented by the presentation system.

In addition, the processing for HLR and HSS is similar to that of 3GPP AAA Server. Example 3:

FIG. 5 is a schematic diagram of a presentation information providing process according to a third preferred embodiment of the present invention. Referring to FIG. 5, in another preferred embodiment of the present invention, it is assumed that the presence information monitoring and collecting unit belongs to a 3GPP AAA Server, and a wireless local area network user terminal. The process of accessing the network is the authentication and authorization process. The specific information presentation process includes the following steps:

/authorization request;

Step 502: Perform an authentication and authorization process between the WLAN UE and the 3GPP AAA Server. Step 503: During the authentication and authorization process between the WLAN UE and the 3GPP AAA Server, the 3GPP AAA Server obtains the presence information of the WLAN UE.

This step can also be performed after the authentication and authorization process is completed between the WLAN UE and the 3GPP AAA Server.

The obtained presence information includes but is not limited to:

a) Routing information.

If the present service system entity needs to know the current location of the WLAN user terminal and the service that the network can provide to the WLAN user terminal, the routing information corresponding to the user terminal by the 3GPP AAA Server is as follows: the visited network PLMN identity, the WLAN access network. The identity or the like is sent to the presentation service system entity.

b) WLAN user terminal status information.

If the presence service system entity needs to know the status information of the WLAN user terminal, The 3GPP AAA Server sends the status information corresponding to the WLAN user terminal, such as an attach status, a detach status, and the like, to the presence service system entity.

c) Other presentation information.

Includes user information, business type, and more.

The above information may be sent according to different needs, or multiple items may be sent to the presentation system entity at the same time.

Step 505: The 3GPP AAA Server sends the user current information notification to the PNA, including: the user identifier, the terminal IP address, the service type, the identifier of the network where the user is located, and the WLAN UE status, such as the Attach status or the Detach status.

Step 506: After receiving the notification of the presence information, the PNA returns a response to the 3GPP AAA Server, and converts the received parameters into content to be presented by the presentation system.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalents, improvements, etc., which are included in the spirit and scope of the present invention, should be included in the present invention. Within the scope of protection.

Claims

Claim

A method for providing presence information to a presentation system by a wireless local area network, characterized in that: a presentation information monitoring acquisition unit is provided, the method comprising:

2. The method according to claim 1, wherein the presence information monitoring acquisition unit belongs to a packet data gateway;

Before the step a, the method further includes: the wireless local area network user terminal initiating a network access request to the packet data gateway;

The network access request is a tunnel establishment request;

The method for obtaining the presence information in the step a is: the packet data gateway performs a tunnel establishment process, and obtains user information, and/or tunnel information, and/or a wireless local area network user terminal during the tunnel establishment process or after the tunnel is established. status information.

The method according to claim 1, wherein the presence information monitoring and collecting unit belongs to an authentication, authorization, and accounting server;

Before the step a, the method further includes: the wireless local area network user terminal initiating a network access request for accessing the packet switched domain network to the packet data gateway or the wireless local area network access gateway; the network access request is a tunnel establishment request;

The method for obtaining the presence information in the step a is: after the packet data gateway/wireless local area network access gateway receives the tunnel establishment request from the wireless local area network user terminal, sending the authentication/authorization to the authentication, authorization, and accounting server. Requesting, obtaining authentication and authorization information for establishing a tunnel, the authentication, authorization, and accounting server acquiring user information, and/or tunnel information, and/or routing information, and/or a wireless local area network user during tunnel establishment Terminal status Information.

Before the step a, the method further includes: the wireless local area network user terminal initiating a network access request to the authentication, authorization, and accounting server;

The network access request is an authentication/authorization request;

The method according to claim 1, wherein the presence information monitoring acquisition unit belongs to a home location register or a home subscription user server;

The network access request is a tunnel establishment request;

The method according to claim 1, wherein the obtained presence information in step a comprises: user information, situation information of accessing a packet switched domain, tunnel information, routing information, and status information of a wireless local area network user terminal. ;

The user information includes: a WLAN user terminal identifier, a user identifier, and the like; The WLAN user terminal identifier includes: a media access control layer address, an international mobile device identifier, a dedicated identifier and an IP address assigned by the operator and the device manufacturer to the user; and the situation information of the access packet switching domain includes: the WLAN The identifier of the WLAN access network where the user terminal is located, the visited public land mobile network PLMN identifier accessed by the WLAN user terminal, the current WLAN user terminal identifier and/or the user identifier, and the WLAN user terminal status information; the WLAN user The terminal identifier includes: a media access control layer address, an international mobile device identifier, a dedicated identifier and an IP address assigned by the operator and the device manufacturer to the user;

The tunnel information includes: a number of tunnels corresponding to the name of the currently activated WLAN access point, a tunnel identifier, a name of the WLAN access point, a corresponding state of the tunnel, a service type of the tunnel, a quality of service parameter of the tunnel, and a security association;

The WLAN user terminal status information includes attachment status information and separation status information.

The method according to claim 6, wherein the tunnel information further comprises: a packet data gateway address accessing the tunnel, and a WLAN user terminal identifier and/or a user identifier.

The method according to claim 6, wherein the tunnel identifier is a name of a wireless local area network access point used when requesting to establish a tunnel, and a user identifier and/or a terminal of a wireless local area network user terminal corresponding to the tunnel. Identification

Or marking a specific identifier of the end-to-end tunnel between the WLAN user terminal corresponding to the tunnel and the packet data gateway;

Or security association; Or other identifiers associated with the tunnel;

Or any combination of the above.

The method according to claim 6, wherein the obtaining the number of tunnels comprises: setting a tunnel number counter in the presence information monitoring and collecting unit;

Corresponding to the same WLAN access point name, after each new tunnel is created, the count value of the tunnel number counter is incremented by 1. After each tunnel is removed, the count value of the tunnel number counter is decremented by 1, and the current count value of the tunnel number counter is used as the connection. The number of tunnels corresponding to the entry name is saved.

The method according to claim 9, further comprising: setting a counting threshold for the tunnel number counter, and if the counting value of the tunnel number counter is greater than or equal to the threshold, the presence information monitoring and collecting unit sends the tunnel information;

The method according to claim 1, wherein the obtained presence information in step a comprises: user information of the wireless local area network user terminal, tunnel information, wireless local area network user terminal status information, access packet switching domain Situation information, tunnel information and routing information;

The method according to claim 11, wherein in the step b, the presence information monitoring and collecting unit sends part or all of the obtained presentation information to the presentation service system entity according to the needs of the presence service system entity. ;

If the presence information to be sent is whether the user terminal currently activates the access packet handover And the information monitoring and collecting unit determines whether the stored user information of the wireless local area network user terminal has tunnel information, and if yes, sends the access service switching entity to the serving service system entity. The information of the tunnel, otherwise, the information of the tunnel that has not activated the access to the packet switched domain service is sent to the presence service system entity;

If the presence information to be sent is the tunnel usage information of the WLAN user terminal accessing the packet switched domain service, the presence information monitoring and collecting unit searches for the saved tunnel information according to the user information of the user terminal, and determines the establishment of the tunnel according to the tunnel information. And the demolition situation, and the business information corresponding to the tunnel, and the result is sent to the presence service system entity.

The method according to claim 12, wherein the information sent to the presence service system entity further comprises: a name of a wireless local area network access point used by the wireless local area network user terminal; or a tunnel identifier; or a tunnel correlation The identifier, or the number, status, and service information of the tunnel corresponding to the name of the wireless local area network access point used by the WLAN user terminal, and the status information of the WLAN user terminal.

The method according to claim 11, wherein in the step b, if the presence service system entity needs to identify the packet switched domain service supported by the WLAN user terminal, the presence information monitoring and collecting unit The tunnel identifier in the tunnel information corresponding to the user terminal is sent to the presence service system entity.

The method according to claim 11, wherein in the step b, if the presence service system entity needs to know the current location of the WLAN user terminal and the packet switched domain service that the visited network can provide to the user terminal And the presence information monitoring and collecting unit sends the information about the access packet switching domain corresponding to the WLAN user terminal to the presence service system entity.

The method according to claim 11, wherein in the step b, if the presence service system entity needs to know the tunnel quality assurance and security information of the WLAN user terminal accessing the packet switched domain service, the presentation Information monitoring and collection unit The QoS parameter of the tunnel in the tunnel information corresponding to the user terminal is sent to the presence service system entity.

17. The method according to claim 3 or 4, wherein the authentication, authorization and accounting server is a 3GPP authentication, authorization and accounting server.

18. The method according to claim 6 or 8, wherein the security association comprises an IPSec security association or an internet key exchange security association.

The method according to claim 2, 3 or 5, wherein the step a and the step b further comprise: the presence information monitoring and collecting unit determines whether the current tunnel establishment is successful, and if yes, executing step b .

The method according to claim 4, wherein the step a and the step b further comprise: the presence information monitoring and collecting unit determines whether the current WLAN access authentication, the authorization is successful, and if yes, executing step b .

The method according to claim 1, wherein in the step a, the method for obtaining the presence information is: the presence information monitoring and collecting unit acquires during or after the access of the wireless local area network user terminal to the network.

The method according to claim 1, wherein the presence information monitoring and collecting unit is an independent network entity or a network side entity that participates in a network access or authentication/authentication process.

A system for providing presence information to a presentation system, the system comprising a presence service system entity, the system further comprising: a presence information monitoring acquisition unit, configured to acquire presence information, and obtain the presented information Part or all of it is sent to the presence service system entity in the rendering system.

The system according to claim 23, wherein the presence information monitoring and collecting unit acquires the presence information by using a process in which the wireless local area network user terminal accesses the network.

25. The system of claim 23, wherein said presenting information monitoring The control collection unit is an independent network entity or a network side entity in a wireless local area network participating in a network access or authentication/authentication process.

The system according to claim 25, wherein the network side entity participating in the network access or authentication/authentication process is: a packet data gateway/wireless local area network access gateway, or an AAA server, or a home location Register/Home Subscriber User Server.