WO2007140699A1 - Procédé et appareil de mise à jour des données signées d'abonné - Google Patents

Procédé et appareil de mise à jour des données signées d'abonné Download PDF

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Publication number
WO2007140699A1
WO2007140699A1 PCT/CN2007/001564 CN2007001564W WO2007140699A1 WO 2007140699 A1 WO2007140699 A1 WO 2007140699A1 CN 2007001564 W CN2007001564 W CN 2007001564W WO 2007140699 A1 WO2007140699 A1 WO 2007140699A1
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WO
WIPO (PCT)
Prior art keywords
user
data
cscf
subscription data
changed
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Application number
PCT/CN2007/001564
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English (en)
Chinese (zh)
Inventor
Hui Li
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2007140699A1 publication Critical patent/WO2007140699A1/fr

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Classifications

    • 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]

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and apparatus for updating user subscription data. Background technique
  • SIP is a VoIP standard released by the Internet Engineering Task Force (IETF) in March 1999.
  • IETF Internet Engineering Task Force
  • SIP as an important application of the Internet, adds telephone signaling and Quality of Service ("QoS") requirements, and has unique user addressing and positioning capabilities.
  • QoS Quality of Service
  • SIP is a protocol for telephone signaling, used to initiate a session, can control the establishment and termination of multimedia sessions attended by multiple participants, and can dynamically adjust and modify session attributes, such as: session bandwidth requirements, transmission media type (voice, video) , data, etc.), media codec format, support for multicast and unicast, and more. Therefore, SIP facilitates the development of value-added services for multiple applications in conjunction with the Internet.
  • IMS is a subsystem superimposed by 3GPP on the packet network. It utilizes the control signaling channel of the packet domain and the bearer channel of the media transmission, and introduces the SIP protocol as a service control protocol to facilitate the use of SIP single, easy to expand, and media combination.
  • the feature is to separate the service control from the bearer control to provide rich multimedia services.
  • the main functional entities in the IMS network include a call control entity CSCF that controls functions such as user registration and session control, an HSS that centrally manages user subscription data, and an AS that provides various service logic control functions.
  • the IMS network uses the registration process of the SIP protocol to implement user access to the IMS network.
  • the IMS network authenticates the user's private identity and establishes an access domain secure channel.
  • the relationship between the user's public identity and the current location of the user is established in the home domain S-CSCF, and the S-CSCF obtains the subscriber's subscription data from the HSS at the same time.
  • the above registration process is shown in Figure 2 (more detailed process reference 3GPP TS24.229), including the following specific steps:
  • the UE initiates a registration request.
  • the P-CSCF saves the IPSec secure channel information and makes the home network address in the registration request.
  • the DNS protocol is used to parse and obtain the address of the user's home network I-CSCF.
  • the I-CSCF queries the HSS for the user registration status, and then obtains the address of the S-CSCF assigned to the user according to the information returned by the HSS.
  • the I-CSCF sends a registration message to the S-CSCF.
  • the S-CSCF finds that it is the initial registration and obtains an authentication set from the HSS.
  • the HSS query obtains the authentication vector and returns it to the S-CSCF.
  • the S-CSCF selects an authentication vector and sends an authentication challenge (401 Challenge;) to the UE.
  • the I-CSCF returns the 401 message to the P-CSCF.
  • the P-CSCF carries the security information according to the 401 message, and establishes a P-CSCF to the UE security channel. The message is then forwarded to the UE.
  • the UE authenticates the network according to the authentication vector of the 401 message, then calculates the authentication response, and re-initiates the registration process using the established secure channel.
  • the P-CSCF resolves the home network address in the registration request using the DNS protocol to obtain the address of the user's home network I-CSCF.
  • the I-CSCF queries the HSS for the user registration status and the S-CSCF information returned by the HSS.
  • the I-CSCF sends a registration message to the S-CSCF.
  • the S-CSCF checks the authentication response provided by the UE. If the match is successful, the authentication is successful, the registration information of the HSS is updated, and the subscription data of the user is downloaded.
  • the S-CSCF matches the registration message according to the initial filtering rule in the subscription data of the user. After the matching succeeds, the third-party registration is initiated to the corresponding AS.
  • the AS returns a registration success confirmation message.
  • the structure of the subscription data of the user downloaded by the S-CSCF using the UML model is shown in FIG. It can be seen that the subscription data of the user downloaded by the S-CSCF includes one or more service profiles.
  • the service description includes information such as public identity, core network service authorization, initial filtering rule set, and shared initial filtering rule set.
  • the initial filtering rule is the service parameters of a group of users.
  • a business description can contain columns of multiple initial filtering rules Table.
  • An initial filter rule contains the following information:
  • the S-CSCF matches the priority of the initial filtering rule from high to low, and receives the request message from the Mw interface according to the trigger information in the trigger point. If the match is successful, the S-CSCF sends the relevant request through the ISC interface to the AS that matches the initial filter rule.
  • the HSS actively sends a subscription data update request to the registered S-CSCF, and after receiving the subscription data update request, the S-CSCF updates the locally saved subscription data.
  • the process is shown in Figure 4.
  • the HSS actively initiates a subscription data update request to the registered S-CSCF. If the S-CSCF is able to process the received subscription data, it returns a successful confirmation after updating the locally saved subscription data, otherwise it returns a failure.
  • Embodiments of the present invention provide a method and apparatus for updating user subscription data to support user signing A scenario in which special data in the data changes.
  • the method of the embodiment of the present invention includes the following steps: When the network side updates the user subscription data, it finds that the special data is about to change, and then performs corresponding processing; and completes the update of the user subscription data.
  • the service call session control function entity of the embodiment of the present invention includes: a release session module, a user re-authentication module, and a logout module, where the service call session control function entity S-CSCF further includes: a comparison module, configured to be used The updated data is compared with the original subscription data to determine whether the special data is about to change, and the release session module, the user re-authentication module, and the logout module are triggered accordingly.
  • the home subscriber network server of the embodiment of the present invention is configured to store the subscription data of the user.
  • the home subscriber network (HSS) further includes: a comparison module, configured to compare the data to be updated with the original subscription data to determine whether the special data is A change is to be made; an adding module is configured to add a corresponding indication information to the issued update user subscription data request message when the comparison module finds that the special data is about to change.
  • the embodiment of the present invention does not update all the data immediately when receiving the subscription data of the user to be updated, as in the prior art, but is to be updated when the HSS or the S-CSCF receives the user subscription data to be updated.
  • the data is compared to the original contract data to identify the particular data that will change. If the special data changes, after the relevant processing is completed, the updated user subscription data is provided to provide normal services for the user.
  • Figure 1 is a schematic diagram of the architecture of an existing IMS system.
  • Figure 2 shows the flow chart of the registration using the SIP protocol.
  • FIG. 3 is a schematic structural diagram of user subscription data downloaded by an existing S-CSCF.
  • Figure 4 is a flow chart of the existing HSS notifying the S-CSCF to update the subscription data.
  • FIG. 5 is a flow chart of steps of a method according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of an S-CSCF according to an embodiment of the present invention.
  • Figure ⁇ is a flow chart showing the steps of applying the S-CSCF of the embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of an HSS according to an embodiment of the present invention.
  • FIG. 9 is a flow chart showing the steps of applying the HSS of the embodiment of the present invention.
  • FIG. 10 is a signaling flowchart of Embodiment 1 of the present invention.
  • FIG. 11 is a signaling flowchart of Embodiment 2 of the present invention.
  • FIG. 12 is a signaling flowchart of Embodiment 3 of the present invention. detailed description ,
  • the embodiment of the present invention provides a method for updating the user subscription data, as shown in FIG. 5 . As shown, the following main steps are included:
  • the network side receives the subscription data to be updated.
  • the network side compares the subscription data to be updated with the original subscription data to determine whether the special bead data is about to change, and if yes, proceeds to step S3; otherwise, directly proceeds to step S4.
  • the subscription data to be updated is compared with the original subscription data to determine whether the special data is about to change, and may be completed by different network elements on the network side.
  • embodiments of the present invention provide two processing strategies.
  • an embodiment of the present invention provides an S-CSCF.
  • the method includes a release session module connected to the comparison module, a user re-authentication module, and a logout module.
  • the comparing module is configured to compare the data to be updated with the original subscription data to determine whether the special data is about to change, and trigger the release session module and/or the user re-authentication module, or correspondingly The release session module and the logout module are triggered.
  • the release session module is configured to release the current session of the related user identifier after receiving the trigger signal of the comparison module.
  • the user re-authentication module is configured to send a trigger signal to the user after receiving the trigger signal of the comparison module
  • the side sends a re-authentication indication to enable the user to complete the re-authentication operation.
  • the logout module is configured to log out the registration information of the user after receiving the trigger signal of the comparison module.
  • the method in the embodiment of the present invention includes the following specific steps:
  • HSS received the contract data and updated.
  • the HSS initiates a subscription data update request to the registered S-CSCF, and sends the updated subscription data to the S-CSCF.
  • the S-CSCF After receiving the subscription data sent by the HSS, the S-CSCF checks whether the data is acceptable. If it is acceptable, go to step a4, otherwise, the update will fail.
  • the S-CSCF compares the subscription data to be updated with the original subscription data, and completes the update of the user subscription data.
  • Case 1 The S-CSCF finds that the changed special data is to delete the user ID registered by the user, and then process it by the following steps:
  • the S-CSCF checks if the user is conducting a session with the user identity, and if so, releases the session.
  • the S-CSCF rejects the calling side or called side request sent by the user identity.
  • the S-CSCF logs out the user.
  • Case 2 The S-CSCF finds that the changed special data indicates the user ID that the blocked user is using, or indicates that the user identifier that the user is using is changed. Then the following steps are taken: The S-CSCF checks whether the user is using the user identifier. Session, if yes, release the session.
  • the S-CSCF rejects the calling side or called side request sent by the blocked user identity.
  • the S-CSCF rejects the calling side or called side request sent by the user identifier before the change before the user re-authentication succeeds.
  • the S-CSCF uses the original subscription data to inform the user of the re-authentication.
  • the S-CSCF After receiving the re-authentication request message sent by the user, the S-CSCF uses the subscription data processing request message to be updated, including carrying the implicit registration user identifier and the default user identifier in the new subscription data in the response message. User; update the status of the user ID; perform third-party registration based on the filtering rules in the new contract data. After the user is successfully registered, the caller side or called party request of the user ID after the change is started.
  • Case 3 The S-CSCF finds that the changed special data indicates that the user identifier in the implicit registration set is added, or the user identifier in the implicit registration set is reduced, or the AS that needs to be registered by the third party is added in the filtering rule, or the change is indicated.
  • the priority of the third-party registered filtering rule is processed by the following steps:
  • the S-CSCF uses the original subscription data to inform the user of the re-authentication.
  • the S-CSCF After receiving the re-authentication request message sent by the user, the S-CSCF uses the subscription data processing request message to be updated, including carrying the implicit registration user identifier and the default user identifier in the new subscription data in the response message. User; update the status of the user ID; perform third-party registration based on the filtering rules in the new contract data. After the user is successfully registered, the caller side or called party request of the modified user ID is processed.
  • the user subscription data is updated according to the existing standard process.
  • an embodiment of the present invention provides an HSS having a function of storing subscription data of a user.
  • the method further includes a comparison module and an adding module that are connected to each other.
  • the comparison module is configured to compare the data to be updated with the original subscription data to determine whether the special data among them is about to change.
  • the adding module is configured to add corresponding indication information in the sent update user subscription data request message when the comparison module finds that the special data is to be changed.
  • the method in the embodiment of the present invention includes the following specific steps: bl, the HSS receives the subscription data.
  • the HSS compares the subscription data to be updated with the original subscription data, and sends an update to the S-CSCF.
  • a request message for user subscription data A request message for user subscription data.
  • Case 1 The HSS finds that the changed special data indicates that the user identifier already registered by the user is deleted, and then sends a request message for updating the user subscription data to the S-CSCF, and adds a release session indication and a logout instruction to the message, so that S- The CSCF releases the current session of the user identity and instructs the user to log out.
  • Case 2 The HSS finds that the changed special data indicates the user ID that the blocked user is using, or indicates that the user identifier that the user is using is changed, and sends a request message for updating the user subscription data to the S-CSCF, and adds a release message to the message.
  • the session indication and the re-authentication indication are such that the S-CSCF releases the current session of the user identity and instructs the user to re-authenticate.
  • Case 3 The special data indicated by the HSS changes indicates that the user identifier in the implicit registration set is added, indicating that the user identifier in the implicit registration set is reduced, indicating that the application server AS requiring third party registration is added in the filtering rule, or the change third party is indicated.
  • the priority of the registered filtering rule is sent to the S-CSCF to update the user subscription data request message, and a re-authentication indication is added to the message, so that the S-CSCF instructs the user to perform re-authentication.
  • the request message for updating the user subscription data is sent to the S-CSCF according to the existing standard procedure.
  • the S-CSCF After receiving the subscription data sent by the HSS, the S-CSCF checks whether the data is acceptable. If yes, go to step b4, otherwise, the update will fail.
  • the S-CSCF completes the update of the user subscription data according to the indication in the request message for updating the user subscription data.
  • the S-CSCF performs the following steps:
  • the S-CSCF detects the release session indication.
  • the S-CSCF checks if the user is conducting a session with the user identity, and if so, releases the session.
  • the S-CSCF detects the logout indication.
  • the S-CSCF rejects the calling side or called side request sent by the user identity.
  • the S-CSCF logs out the user.
  • step b2 the S-CSCF performs the following steps:
  • the S-CSCF detects the release session indication.
  • the S-CSCF checks whether the corresponding user identity has an ongoing session, and if so, releases the session.
  • the S-CSCF rejects the calling side or called side request sent by the blocked user identity.
  • the S-CSCF rejects the calling party or called party request sent by the user ID before the change before the user re-authentication succeeds.
  • the S-CSCF detects the re-authentication indication.
  • the S-CSCF uses the original subscription data to inform the user of the re-authentication.
  • the S-CSCF After receiving the re-authentication request message sent by the user, the S-CSCF uses the subscription data processing request message to be updated, including carrying the implicit registration user identifier and the default user identifier in the new subscription data in the response message. User; update the status of the user ID; perform third-party registration based on the filtering rules in the new contract data. After the user is successfully registered, the caller side or called party request of the modified user ID is processed.
  • the S-CSCF processes the following steps:
  • the S-CSCF detects the re-authentication indication.
  • the S-CSCF uses the original subscription data to inform the user of the re-authentication.
  • the S-CSCF After receiving the re-authentication request message sent by the user, the S-CSCF uses the subscription data processing request message to be updated, including carrying the implicit registration user identifier and the default user identifier in the new subscription data in the response message. User; update the status of the user ID; perform third-party registration based on the filtering rules in the new contract data. After the user is successfully registered, the caller side or called party request of the modified user ID is processed.
  • the user subscription data is updated according to the existing standard procedure.
  • the relevant indication that is, the received request message for updating the user subscription data conforms to the existing standard.
  • Embodiment 1 The default user identifier in the user subscription data is blocked, and the subscription data is compared by the S-CSCF, and the update is completed. Referring to Figure 10, the following specific steps are included:
  • the HSS initiates a request to update the user subscription data to the S-CSCF.
  • the S-CSCF receives the updated user subscription data, and after checking and saving the data, the response is answered.
  • the S-CSCF checks the user subscription data, finds that the original default user identifier of the user is blocked, then releases the ongoing session corresponding to the user identifier, and uses the original subscription data to notify the UE to re-authenticate.
  • the UE responds to the re-authentication notification message.
  • the UE initiates a re-authentication request message.
  • the S-CSCF processes the user re-authentication request message using the new user subscription data, and carries the new user identity in the response message.
  • Embodiment 2 A third-party registration filtering rule is added to the user subscription data, and the subscription data is compared by the S-CSCF, and the update is completed. See Figure 11 for the following specific steps:
  • the HSS initiates a request to update the user subscription data to the S-CSCF.
  • the S-CSCF receives the updated user subscription data, and after checking and saving the data, it responds to the HSS.
  • the S-CSCF checks the user subscription data, and finds that the third-party registration filtering rule is added to the user subscription data, and then uses the original subscription data to notify the UE to re-authenticate.
  • the UE responds to the re-authentication notification message.
  • the UE initiates a re-authentication request message.
  • the S-CSCF processes the user re-authentication request message using the new user subscription data, and carries the new user identity in the response message.
  • the S-CSCF initiates a third party registration request using the new user subscription data.
  • the registered AS responds to the third party registration request message.
  • Embodiment 3 The default user identifier in the subscriber subscription data is changed, the HSS compares the subscription data, and the HSS sends a request message for updating the subscriber subscription data to the S-CSCF, and adds a relevant indication to the message to complete the update. Referring to Figure 12, the following specific steps are included:
  • the HSS After receiving the subscription data of the user to be updated, the HSS saves the subscription data, and checks the user subscription data, and finds that the original default user identifier of the user is changed. The HSS then sends a request message for updating the subscriber subscription data to the S-CSCF, and adds a release session indication and a re-authentication indication to the message. At the same time, update the user subscription data of the local end.
  • the S-CSCF receives the updated user subscription data, and after checking and saving the data, the response is answered.
  • the S-CSCF detects that the request message includes a release session indication, and then releases the ongoing session corresponding to the user identifier; the S-CSCF detects that the request message includes a re-authentication indication, and then uses the original subscription data. The UE is notified to re-authenticate.
  • the UE responds to the re-authentication notification message.
  • the UE initiates a re-authentication request message.
  • the S-CSCF processes the user re-authentication request message using the new user subscription data, and carries the new user identity in the response message.
  • the embodiment of the present invention does not update all the data immediately when receiving the subscription data of the user to be updated, as in the prior art, but receives the user subscription data to be updated in the HSS or the S-CSCF.
  • the special data to be changed is identified. If the special data changes, after the relevant processing is completed, the user is provided with normal services according to the updated user subscription data.
  • the present invention also provides a Serving Call Session Control Function Entity S-CSCF, and a Home Signing Subscriber Server HSS.
  • the implementation of the embodiment of the present invention can make the network side take correct processing decisions when the special data in the user subscription data changes, and avoid conflicts between special data changes and service provision.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)

Abstract

L'invention concerne un procédé et un appareil permettant de mettre à jour des données signées d'abonné pour résoudre le problème qui empêche le flux typique existant d'être appliqué lorsque les données spécifiques sont changées. Le procédé comprend: lors de la mise à jour, côté réseau, des données signées d'abonné, application du procédé approprié si les données spécifiques doivent être changées; puis, mise à jour des données signées d'abonné. L'application de la présente invention permet d'amener le côté réseau à adopter une mesure de procédé précise lorsque les données spécifiques dans les données signées d'abonné subissent un changement, de façon à éviter le conflit entre le changement de données spécifiques et la fourniture de service.
PCT/CN2007/001564 2006-06-06 2007-05-15 Procédé et appareil de mise à jour des données signées d'abonné WO2007140699A1 (fr)

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CN200610083912.5A CN100527876C (zh) 2006-06-06 2006-06-06 一种更新用户签约数据的方法及装置
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8837355B2 (en) 2008-03-13 2014-09-16 Huawei Technologies Co., Ltd. Bearer processing method and mobile management device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102761854B (zh) * 2008-03-13 2016-08-03 华为技术有限公司 对承载的处理方法及移动管理设备
CN102769614A (zh) * 2012-07-03 2012-11-07 华中科技大学 一种基于分布式cscf拓扑的通信方法
TWI621342B (zh) * 2016-06-08 2018-04-11 Chunghwa Telecom Co Ltd System for dynamically identifying Next Generation Network (NGN)/IP Multimedia Subsystem (IMS) Voice over Internet Protocol (VoIP) calls and system in which the calling and called users are accommodated in the same Talk Edge Controller (SBC) and method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040050578A (ko) * 2002-12-10 2004-06-16 주식회사 케이티프리텔 데이터 전용망에서의 인증 방법 및 시스템
CN1571576A (zh) * 2004-04-28 2005-01-26 中兴通讯股份有限公司 一种实现公共电话交换网交换机移动化管理的系统和方法
CN1582003A (zh) * 2003-08-08 2005-02-16 华为技术有限公司 一种gprs服务支持节点提供智能业务的方法
CN1607842A (zh) * 2003-10-15 2005-04-20 华为技术有限公司 认证服务器与归属位置寄存器数据同步方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040050578A (ko) * 2002-12-10 2004-06-16 주식회사 케이티프리텔 데이터 전용망에서의 인증 방법 및 시스템
CN1582003A (zh) * 2003-08-08 2005-02-16 华为技术有限公司 一种gprs服务支持节点提供智能业务的方法
CN1607842A (zh) * 2003-10-15 2005-04-20 华为技术有限公司 认证服务器与归属位置寄存器数据同步方法
CN1571576A (zh) * 2004-04-28 2005-01-26 中兴通讯股份有限公司 一种实现公共电话交换网交换机移动化管理的系统和方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8837355B2 (en) 2008-03-13 2014-09-16 Huawei Technologies Co., Ltd. Bearer processing method and mobile management device

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CN101047991A (zh) 2007-10-03

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