WO2011029342A1 - Procédé, dispositif et système d'identification d'un type d'identité d´utilisateur public (pui) - Google Patents

Procédé, dispositif et système d'identification d'un type d'identité d´utilisateur public (pui) Download PDF

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Publication number
WO2011029342A1
WO2011029342A1 PCT/CN2010/074912 CN2010074912W WO2011029342A1 WO 2011029342 A1 WO2011029342 A1 WO 2011029342A1 CN 2010074912 W CN2010074912 W CN 2010074912W WO 2011029342 A1 WO2011029342 A1 WO 2011029342A1
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WO
WIPO (PCT)
Prior art keywords
public user
response message
success response
cscf
registration
Prior art date
Application number
PCT/CN2010/074912
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English (en)
Chinese (zh)
Inventor
王健
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中兴通讯股份有限公司
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Publication of WO2011029342A1 publication Critical patent/WO2011029342A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1073—Registration or de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, device, and system for identifying a PUI (Public User Identity) type of an IP multimedia subsystem. Background technique
  • the IP Multimedia Core Network Subsystem is the core of a new generation of communication networks.
  • Figure 1 depicts a schematic diagram of network element entities and their connections in an IMS architecture.
  • the network elements and devices involved are: User Equipment (UE) 11 represents the terminal device used by the user; Call Session Control Function (CSCF) is the IMS core network session.
  • the control function entity is a core network element that controls the session process, and completes the registration, session, and routing functions.
  • the call session control function includes: a proxy call session control function (Proxy-CSCF, referred to as P-CSCF). 12.
  • Query call session control function is the core of a new generation of communication networks.
  • FIG. 1 depicts a schematic diagram of network element entities and their connections in an IMS architecture.
  • the network elements and devices involved are: User Equipment (UE) 11 represents the terminal device used by the user;
  • CSCF Call Session Control Function
  • the control function entity is a core network element that controls the session process, and completes the registration,
  • Interrogating-CSCF referred to as I-CSCF 13 and Serving-Call Session Control Function (Serving-CSCF, S-CSCF for short) 14.
  • P-CSCF12 is the first contact point of the user in the IMS system, and performs proxy call session control.
  • the I-CSCF 13 performs a query call session control function, and the S-CSCF 14 performs a service call session control function;
  • a Home Subscriber Server (HSS) 15 is a primary storage server for all data related to users and servers in the IMS;
  • Server (Application Server, AS for short) 16 is to provide value-added multimedia Service network elements.
  • the UE 11 is connected to the P-CSCF 12 through the Gm interface; the P-CSCF 12, the I-CSCF 13 and the S-CSCF 14 are interconnected by the Mw interface; the HSS 15 is connected to the I-CSCF 13 and the S-CSCF 14 through the Cx interface, and is connected to the AS 16 through the Sh interface; The S-CSCF 14 is connected to the AS 16 through an ISC (IMS Service Control) interface.
  • ISC IMS Service Control
  • the P-CSCF acts as the ingress network element for the user to access the IMS system, all session initiation protocols.
  • the Session Initiation Protocol (SIP) signaling must pass through the P-CSCF regardless of whether it is from the UE or the UE.
  • the P-CSCF After the UE is successfully registered in the IMS network, the P-CSCF locally stores the contact address of the UE, the Public User Identity (PUI) of the UE, and the Private User Identity (PVI) of the UE.
  • PKI Public User Identity
  • PVI Private User Identity
  • S-CSCF is the core network of IMS
  • the S-CSCF After the UE successfully registers with the IMS network, the S-CSCF locally saves the network ID of the P-CSCF used by the UE to register with the IMS network, the IP address of the P-CSCF, the contact address of the UE, the public user identity of the UE, the PUI, and the UE.
  • the private user identifier PVI, the user configuration data corresponding to the public user identifier of the UE, and the HSS address or name of the UE registration state are saved.
  • the HSS is the storage core of all user and server related data in the IMS system. It not only saves user and server related static data, but also saves some dynamic data.
  • the HSS saves the S-CSCF address or name assigned to the UE.
  • a UE wants to use the rich service functions provided by IMS and must first register with the IMS domain. After the UE is successfully registered, the IMS network allocates the P-CSCF and the S-CSCF to the UE, and after the UE is successfully registered, the P-CSCF, the S-CSCF, and the HSS maintain some data and status of the user.
  • the user's PUI is generally divided into a normal PUI and a wildcard PUI.
  • the wildcard PUI ⁇ uses a regular expression to represent the wildcard, and its format is as follows, '! , is the separator of the regular expression, two '! Between , is a regular expression:
  • Sip:tom!.*!@xu.com which represents a SIP URI (Universal Resource Identifier) with xu.com as the domain name and userpart (username) as the torn.
  • SIP URI Universal Resource Identifier
  • the above are the SIP URI and TEL URI formats of the wildcard PUI.
  • the advantages of using the wildcard PUI are: Treating a group of users as a whole, assigning a group identifier, and storing only the group identifier of the group identifier in the core network, but Each single user ID can still be routed normally in the core network. That is, the core network can associate a user identifier with a group identifier to identify it as a legitimate user.
  • tel 52875![0-9] ⁇ 3 ⁇ !
  • a subscription data is assigned, but each network element device in the IMS network can correctly identify and route any number between tel: 52875000 and tel: 52875999.
  • the HSS assigned to the UE downloads all PUI identifiers of the user to the S-CSCF, and the S-CSCF forwards all PUI identifiers of the user to the P-CSCF. If an IMS user wants to conduct a session, it needs to perform IMS registration first. The registration process is used to obtain the corresponding session resources and register their own location on the network.
  • Figure 2 is a flow chart of initial registration of IMS users, mainly related to the following network elements and devices: UE, P-CSCF, I-CSCF, S-CSCF and HSS, the process includes the following steps:
  • the UE sends a registration request to the P-CSCF, where the registration request includes a public user identifier (PUI) of the user equipment;
  • PPI public user identifier
  • the P-CSCF when receiving the registration request, finds the I-CSCF of the user home network access point through a DNS (Domain Name Server) query or local configuration, and forwards the registration request to the I-CSCF;
  • DNS Domain Name Server
  • the I-CSCF sends a request message to the HSS, requesting to allocate an S-CSCF;
  • the HSS returns the assigned S-CSCF name or S-CSCF capability to the I-CSCF;
  • the I-CSCF sends a registration request message to the selected S-CSCF;
  • the S-CSCF if the S-CSCF needs to perform authentication authentication on the user, the user authentication vector needs to be obtained from the HSS, and a challenge request (401 Unauthorized message) is constructed according to the authentication vector returned in the S207 message, and the challenge request is forwarded to the UE.
  • a challenge request (401 Unauthorized message) is constructed according to the authentication vector returned in the S207 message, and the challenge request is forwarded to the UE.
  • the S-CSCF receives the S215 challenge response message, determines the legitimacy of the user, and completes the authentication and authentication of the user; if authentication authentication is not required, the S217 may be directly executed;
  • the S-CSCF searches for the local non-existent user registration data according to the UE carrying the same contact address, PUI, and PVI as the initial registration, and sends a request for acquiring the user configuration data to the HSS, and informs that the initial registration is performed;
  • the HSS determines that the local user status is Not Registered, and the registration request is initial registration, and the request is considered to be legal, the user status is modified as Registered, and the S-CSCF information is stored, and the user's subscription data is stored.
  • the billing address information is returned to the S-CSCF;
  • the S-CSCF saves the user data (including the network ID corresponding to the P-CSCF, the private user identifier and the public user identifier of the UE, the configuration data corresponding to the public user identifier of the UE, the HSS address, and the charging address, etc.), and the registration is successful.
  • the response message, the P-Associated-URI header field value of the associated P of the registration success response message carries all the public user identifiers of the user, but does not include the barred (prohibited call) public user identifier, but does not indicate which identifiers It is a normal PUI, which is a wild PUI.
  • S220 The S-CSCF forwards the registration success response message to the I-CSCF.
  • the I-CSCF forwards the registration success response message to the P-CSCF;
  • the existing 3GPP (3rd Generation Partnership Project) related protocol does not successfully respond to the registration of the S-CSCF received by the P-CSCF, and how to identify the wildcard PUI proposes an effective solution. That is, the prior art has the following obvious exceptions: The P-CSCF cannot quickly identify the wildcard PUI and the normal PUI, and the PUI needs to be traversed one by one to store the PUI, thereby causing system performance degradation.
  • the S-CSCF in the prior art does not carry an indicator that distinguishes between the normal PUI and the wildcard PUI.
  • the P-CSCF cannot quickly distinguish between a normal PUI and a wildcard PUI, and may need to be traversed by a regular expression format to determine the distinction.
  • the technical problem to be solved by the present invention is to provide a method, device and system for identifying a PUI type, to ensure that when the P-CSCF receives the registration success response message of the S-CSCF, and quickly identify which users are implicitly registered, which are ordinary PUIs. Wild PUI.
  • the present invention provides a method for identifying a PUI type, which is applied to an Internet Protocol IP Multimedia Subsystem, and the method includes:
  • the service call session control function S-CSCF constructs a registration success response message carrying a parameter indicating the type of the public user identity when the user registration request is successful, and sends the registration success response message to the proxy call session control function P-CSCF;
  • the P-CSCF After receiving the registration success response message, the P-CSCF identifies various types of public user identifiers according to the parameters indicating the public user identification type, and stores the public user identifiers according to the types, and then successfully registers the public users. A response message is sent to the user device.
  • the step of carrying the parameter indicating the public user identification type in the registration success response message includes:
  • the registration success response message carries a parameter indicating a wildcard public user identifier.
  • the step of carrying the parameter indicating the wildcard public user identifier in the registration success response message includes: A parameter indicating the wildcard public user identifier is added after the wildcard public user identifier in the P-Associated-URI header field value of the associated P's universal resource identifier.
  • the step of carrying the parameter indicating the public user identification type in the registration success response message includes:
  • a parameter indicating the public user identification type is added after each public user identifier in the P-Associated-URI header field value.
  • the present invention also provides a service call session control function device, including: a processing unit and a success response construction unit, where
  • the processing unit is configured to process a registration request of the user equipment, and output a signal to the successful response construction unit after processing the registration request successfully;
  • the success response construction unit is configured to: after receiving the signal output by the processing unit, construct a registration success response message carrying a parameter indicating a public user identification type, and send the registration success response message to the proxy call session control function .
  • the above device may also have the following features:
  • the success response construction unit is configured to add a public user identification type after adding various types of public user identifiers in the P-Associated-URI header field value of the associated P. Parameters.
  • the above device may also have the following features:
  • the success response construction unit is configured to add a parameter indicating the wildcard public user identity after the wildcard public user identifier in the P-Associated-URI header field value.
  • the present invention also provides a system for identifying a public user identity type, including: a user equipment, a service call session control function, and a proxy call session control function, where
  • the user equipment is configured to send a registration request to the proxy call session control function; the proxy call session control function is configured to send the registration request to the serving call session control function; receive the service call After the registration success response message sent by the session control function, the public user identifiers are identified according to the parameters indicating the public user identification type carried in the registration success response message, and the public user identifiers are respectively stored by type, and then The registration success response message is sent to the user equipment;
  • the service call session control function is configured to: process the received registration request, and after constructing the registration request, construct a registration success response message carrying a parameter indicating a public user identification type, and send the registration success response message Call the agent session control function.
  • the above system may also have the following features:
  • the service call session control function is configured to add a parameter indicating a public user identity type after each public user identifier in the P-Associated-URI header field value of the associated P. .
  • the above system may also have the following features:
  • the service call session control function is configured to add a parameter indicating the wildcard public user identity after the wildcard public user identity in the P-Associated-URI header field value.
  • the present invention provides a method, device, and system for identifying a PUI type, which can ensure that when the P-CSCF receives a registration success response message of the S-CSCF, it quickly identifies which users are implicitly registered and which are ordinary PUIs. With PUI, it is convenient for quick positioning of subsequent user calls.
  • Figure 1 is a diagram of a known IMS architecture
  • FIG. 2 is a flow chart of a known initial registration of an IMS user
  • FIG. 3 is a flowchart of successful registration of an IMS user according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a system for identifying a PUI type in accordance with an embodiment of the present invention.
  • Preferred embodiment of the invention
  • the method for identifying the PUI type provided by the present invention mainly includes the PUI type indication parameter in the constructed success response message when the S-CSCF processes the user registration request successfully, and then the P-CSCF presses the PUI according to the PUI type indication parameter.
  • the types are stored separately to achieve that the PUI can be quickly located and routed regardless of whether the PUI that initiated the call is a normal PUI or a wildcard PUI.
  • FIG. 3 is a flowchart of successful registration of a user equipment of an IMS system according to an embodiment of the present invention.
  • the steps S301 to S318 are the same as the above steps S201 to S218, and the description is not repeated here.
  • the key of the embodiment is that the S-CSCF carries the indication parameter of the wildcard PUI in constructing the 200 OK success response message.
  • the specific steps of the process are as shown in steps S319 ⁇ S322, as follows:
  • the S-CSCF saves the user data (including the network ID corresponding to the P-CSCF, the private user identifier and the public user identifier of the UE, the configuration data corresponding to the public user identifier of the UE, the HSS address, and the charging address, etc.), and the registration is successful.
  • the S-CSCF forwards the registration success response message to the I-CSCF;
  • the I-CSCF forwards the registration success response message to the P-CSCF;
  • the P-CSCF After receiving the registration success response message, the P-CSCF saves the information carried in the registration success response message locally, because the S-CSCF carries the indication parameters that distinguish the common PUI from the wildcard PUI.
  • the P-CSCF can quickly distinguish between the normal PUI and the wildcard PUI, and store the normal PUI and the wildcard PUI respectively, and then forward the registration success response message to the UE.
  • the solution of this embodiment supplements the shortage of the protocol.
  • the P-Associated-URI header field value carries a parameter indicating the PUI type, and the P-CSCF can quickly identify the type of the PUI.
  • the P-CSCF can distinguish between the wildcard PUI and the normal PUI, so that the PUI can be quickly located and routed regardless of whether the PUI that initiated the call is a normal PUI or a wildcard PUI.
  • FIG. 4 is a schematic diagram of a system for identifying a PUI type according to an embodiment of the present invention.
  • the system for identifying a PUI type in this embodiment includes: a user equipment (UE) 41, a proxy call session control function (P-CSCF) 42) and a Serving Call Session Control Function (S-CSCF) 43 , wherein the S-CSCF 43 includes a processing unit 431 and a success response constructing unit 432.
  • UE user equipment
  • P-CSCF proxy call session control function
  • S-CSCF Serving Call Session Control Function
  • the UE sends a registration request to the P-CSCF, and the P-CSCF sends the registration request to the S-CSCF; after receiving the registration request, the S-CSCF processes the registration request by the processing unit, and after the processing succeeds, the processing unit constructs a successful response.
  • the unit outputs a signal, and the successful response constructing unit receives the signal output by the processing unit to construct a registration success response message, and the registration success response message carries the indication PUI type.
  • the S-CSCF then sends a registration success response message to the P-CSCF.
  • the P-CSCF After receiving the registration success response message, the P-CSCF stores the PUI by type according to the parameter indicating the PUI type carried in the registration success response message, so that the P-CSCF can quickly distinguish the normal PUI from the wildcard PUI, and then the A registration success response message is sent to the user device.
  • the method of the present invention is applied to the IP multimedia subsystem to ensure that when the P-CSCF receives the registration success response message of the S-CSCF, it quickly identifies the implicitly registered users which are ordinary PUIs and which are wild PUIs. , for quick positioning of subsequent user calls, providing convenience and improving systemicity
  • the method and system for identifying a public user identification type and the service call session control function device can ensure that the P-CSCF receives the S-CSCF by constructing a registration success response message carrying a parameter indicating the public user identification type. After the registration success response message, the user who is explicitly registered is quickly identified which is a normal PUI and which is a wildcard PUI, which provides convenience for subsequent user call quick positioning and improves system performance.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • General Business, Economics & Management (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)

Abstract

La présente invention concerne un procédé, un dispositif et un système d'identification d'un type d'identité d´utilisateur public (PUI). Le procédé comporte les étapes suivantes : lorsqu'une fonction commande de session d'appel en service (Serving Call Session Control Function, S-CSCF) réussit à traiter une demande d'enregistrement d'un utilisateur, elle construit un message de réponse d'enregistrement réussi véhiculant un paramètre indiquant le type de PUI et envoie ledit message de réponse d'enregistrement réussi à une CSCF mandataire (Proxy-CSCF, P-CSCF); après avoir reçu ledit message de réponse d'enregistrement réussi, la P-CSCF identifie des PUI de divers types en fonction dudit paramètre indiquant le type de PUI, mémorise les PUI respectivement selon leurs types, puis envoie ledit message de réponse d'enregistrement réussi à l'équipement d'utilisateur. La solution technique de la présente invention est capable de garantir l'identification rapide de ceux qui parmi les utilisateurs s'enregistrant implicitement disposent de PUI normales et de ceux d'entre eux qui disposent de PUI génériques, après que la P-CSCF a reçu le message de réponse d'enregistrement réussi provenant de la S-CSCF, de faciliter un positionnement rapide en vue de l'appel subséquent d'un utilisateur et d'améliorer les performances du système.
PCT/CN2010/074912 2009-09-11 2010-07-02 Procédé, dispositif et système d'identification d'un type d'identité d´utilisateur public (pui) WO2011029342A1 (fr)

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CN2009101729677A CN102025695A (zh) 2009-09-11 2009-09-11 一种识别pui类型的方法、设备及系统
CN200910172967.7 2009-09-11

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