WO2008046266A1 - Sous-système multimédia ip pour sélectionner automatiquement un serveur d'abonné local - Google Patents

Sous-système multimédia ip pour sélectionner automatiquement un serveur d'abonné local Download PDF

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Publication number
WO2008046266A1
WO2008046266A1 PCT/CN2006/003685 CN2006003685W WO2008046266A1 WO 2008046266 A1 WO2008046266 A1 WO 2008046266A1 CN 2006003685 W CN2006003685 W CN 2006003685W WO 2008046266 A1 WO2008046266 A1 WO 2008046266A1
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WO
WIPO (PCT)
Prior art keywords
function device
user
home subscriber
home
available
Prior art date
Application number
PCT/CN2006/003685
Other languages
English (en)
Chinese (zh)
Inventor
Weiwu Ang
Zhongke Li
Wei Wang
Original Assignee
Zte Corporation
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 Zte Corporation filed Critical Zte Corporation
Publication of WO2008046266A1 publication Critical patent/WO2008046266A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/40—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4588—Network directories; Name-to-address mapping containing mobile subscriber information, e.g. home subscriber server [HSS]
    • 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 an IP multimedia subsystem, and more particularly to an automatic selection method for a home subscriber server of an IP multimedia subsystem and an IP multimedia subsystem for automatically selecting a home subscriber server. Background technique
  • the Home Subscriber Server is a central database for storing user-related information, which is equivalent to the HLR (Home Location Register) of the traditional mobile network. Location register).
  • HLR Home Location Register
  • the HSS also stores customized data related to the user for processing the multimedia session, including: local information, confidential information (proof and authorization information), registration information, service trigger information, The user's personal information and the S-CSCF (Serving Call Session Control Function) assigned to the user, etc.
  • the IMS network structure diagram is shown in Figure 3.
  • the CSCF Call Session Control Function
  • PVI Public User Identity
  • PUI Primary User Identity
  • the CSCF queries the SLF for the HSS address to which the user belongs based on the SLF (Subscriber Location Function) address, and then sends the service request to the HSS.
  • the SLF locates which HSS the user belongs to according to the following three conditions:
  • the PVI/PUI is a phone number, it is searched based on the HSS information to which the configured phone number segment belongs.
  • HSS If you configure the HSS information corresponding to the user's PVI/PUI, look it up based on this. Because the HSS stores the user's subscription information and location information, if the HSS is damaged, such as an earthquake or a fire, the entire HSS is damaged, the registration and call services of the user belonging to the HSS cannot be implemented, so the HSS needs to be considered. Disaster tolerance issues. The implementation definition of HSS disaster tolerance is not given in the current protocol specification. When the HSS fails and the service cannot be processed normally, the SLF does not know the actual status of the HSS and still returns the information of the failed HSS to the CSCF. Therefore, there is a need for a solution for implementing automatic switching of HSS disaster tolerance in an IP multimedia subsystem to solve the above problems.
  • a primary object of the present invention is to provide an automatic selection method and system for a home subscriber server, which is used to provide an HSS disaster recovery automatic handover implementation method, which is used to automatically replace a disaster recovery backup HSS when an HSS failure occurs. It provides services that ensure that CSCF queries and downloads continue.
  • the present invention provides an automatic selection method of a home subscriber server of an IP multimedia subsystem.
  • the automatic selection method of the home subscriber server includes the following steps: Step S102: respectively set an interface between the user positioning function device and the plurality of home subscriber servers; Step S104: The user positioning function device queries multiple home subscriber servers through the interface according to a predetermined timing.
  • step S106 when the call session control function device queries the user location function device for the home user server information, the user location function device selects an available home user server according to the recorded status of the plurality of home user servers. Return its information to the call session control function device. Data replication is performed synchronously or asynchronously between multiple home subscriber servers.
  • step S104 the user positioning function device initiates a status query request to the plurality of home user servers, and determines the status of each home user server according to the response or non-response of the plurality of home user servers.
  • step S104 if the home server response status is normal, the user positioning function device determines that the home user server is available, and if the home user server response is in a failure or does not respond within a predetermined time, the user positioning function device will The home subscriber server is determined to be unavailable.
  • the user location function device may select an available home user server in the state-of-available home subscriber server according to a predetermined priority.
  • the user location function device may alternately select an available home subscriber server among the home subscriber servers whose status is available.
  • the user location function device may randomly select an available home subscriber server among the home subscriber servers whose status is available.
  • the present invention provides an IP multimedia subsystem that automatically selects a home subscriber server.
  • the IP multimedia subsystem includes: a plurality of home subscriber servers; a call session control function device, configured to query the user location function device for the home subscriber server information; the state query interface is respectively set between the user location function device and the plurality of home subscriber servers.
  • the user positioning function device is configured to query the status of the plurality of home users by using the status query interface according to the predetermined timing, and update the record, and is used for querying the home user server by the call session control function device to the user positioning function device.
  • an available home subscriber server is selected and its information is returned to the call session control function device.
  • Data replication is performed synchronously or asynchronously between multiple home subscriber servers.
  • the user positioning function device is configured to initiate a status query request to multiple home user servers, and determine the status of each home user server according to the response or non-response of multiple home user servers. If the home subscriber server response status is normal, the subscriber location function device determines that the home subscriber server is available. If the home subscriber response is faulty or does not respond within a predetermined time, the subscriber location function device determines the home subscriber server as unavailable.
  • the user location function device is configured to select an available home subscriber server among the home subscriber servers whose status is available according to a predetermined priority.
  • the user location function device is configured to alternately select an available home subscriber server among the home subscriber servers whose status is available.
  • the user location function device is configured to randomly select an available home subscriber server among the home subscribers whose status is available.
  • FIG. 1 is a flow chart of an automatic selection method of a home subscriber server according to the present invention
  • FIG. 2 is a block diagram of an IP multimedia subsystem for automatically selecting a home subscriber server according to the present invention
  • 4 is a schematic diagram of an improved architecture in accordance with an embodiment of the present invention
  • FIG. 5 is a flow diagram of a CSCF and SLF interaction flow in the prior art
  • FIG. 6 is an improved HSS state detection according to an embodiment of the present invention.
  • an automatic selection method of a home subscriber server of an IP multimedia subsystem includes the following steps: Step S102: Set a connection ⁇ between a user location function device and a plurality of home subscriber servers, respectively. Data replication is performed synchronously or asynchronously between multiple home subscriber servers. Step S104: The user positioning function device queries the status of the plurality of home subscriber servers through the interface according to the predetermined timing, and updates the record.
  • the user positioning function device initiates a status query request to the plurality of home user servers, and determines the status of each home user server according to the response or non-response of the plurality of home server servers. If the home subscriber server response status is normal, the subscriber location function device determines that the home subscriber server is available, and if the home subscriber server response is in a failure or does not respond within a predetermined time, the subscriber location function device determines the home subscriber server to be unavailable. Step S106, the call session control function device queries the user location function device to query the home user service. Select an available home subscriber server and return its information to the call session control function device.
  • the user location function device can select an available home subscriber server among the available home subscriber servers in accordance with a predetermined priority.
  • the user location function device can alternately select an available home subscriber server among the home subscriber servers whose status is available.
  • the user location function device can randomly select an available home subscriber server among the home subscriber servers whose status is available. Referring to FIG.
  • the IP multimedia subsystem 10 for automatically selecting a home subscriber server includes: a plurality of home subscriber servers 20; a call session control function device 30, configured to query the subscriber location function device 40 for the home subscriber server 20 information;
  • the status query interface 50 is respectively disposed between the user location function device 40 and the plurality of home user servers 20; the user location function device 40 is configured to query the plurality of home user servers 20 through the status query interface 50 according to a predetermined timing.
  • the status, and the update record, and when the call session control function device 30 queries the user location function device 40 for the home subscriber server 20 information selects an available home subscriber server 20 based on the recorded status of the plurality of home subscriber servers 20. And return its information to the call session control function device 30.
  • the user location function device 40 is configured to initiate a status query request to the plurality of home user servers 20, and determine the status of each home user server 20 based on the response or non-response of the plurality of home user servers 20. If the home subscriber server 20 responds to a normal state, the subscriber location function device 40 determines that the home subscriber server 20 is available. If the home subscriber server 20 responds to a failure or does not respond within a predetermined time, the subscriber location function device 40 will The home subscriber server 20 is determined to be unavailable.
  • the user location function device 40 is configured to select the available home subscriber server 20 in the home subscriber server 20 whose status is available according to a predetermined priority.
  • the user location function device 40 is configured to select the available home subscribers 20 in turn in the home subscribers 20 that are available.
  • the user location function device 40 is configured to randomly select the available home subscriber server 20 among the home subscriber servers 20 whose status is available.
  • the invention relates to a method for implementing automatic disaster recovery switching of an HSS by an IP multimedia subsystem. From the previous description, you can see that there are multiple HSSs in the network. The SLF assumes the HSS selection function. Therefore, you can increase the HSS disaster recovery configuration information on the SLF to implement an HSS fault and use its corresponding disaster recovery HSS. Continue to provide services.
  • the present invention has two major improvements to existing systems:
  • the SLF can select one HSS from a group of HSSs to return its address information to the CSCF.
  • HSS group Data replication is implemented in a synchronous or asynchronous manner among multiple HSSs to ensure that the user's subscription information and location information are consistent.
  • HSSs may be referred to as an HSS group.
  • HSS information Plan the access priority for the HSS belonging to the same HSS group in the SLF (only one HSS selection method is listed here, or it may be round robin or random selection, etc.), for example, the SLF is configured according to the telephone number segment.
  • HSS information can be configured as follows:
  • the SLF periodically initiates a state detection process to all HSSs configured in the SLF. According to the result of the state detection, the HSS is identified as available, as shown in FIG. 6.
  • the CSCF to the SLF queries the HSS information to which the user belongs, the user's number is provided, for example, 8613958057777.
  • the SLF judges that the number of the user falls between the number segments 8613958060000 ⁇ 8613958069999.
  • the SLF determines whether HSS1 is currently available. If HSS1 is available, it returns the address information of HSS1 to the CSCF. If HSS1 is not available, continue to determine if there are other available nodes, such as HSS2 and HSS3, and if there are available nodes, select and return to CSCF.
  • IMS Inter-Calling Session Control Function
  • P-CSCF Pro-Call Session Control Function
  • Session control function home user server, User location feature.
  • PSTN/PLMN Public Switched Telephone Network I Public Land Mobile Network
  • the present invention focuses on the relationship between SLF and HSS.
  • Figure 4 is an extension of the existing architecture. The status detection interface of the SLF and the HSS is added. The SLF can be used to determine whether the current HSS is available.
  • the interface implementation process includes the following steps, as shown in FIG.
  • Step 401 The SLF periodically initiates a status query request to all HSSs configured in the SLF.
  • Step 402 After receiving the status query request of the SLF, the HSS returns to the current running of the HSS. Status; SLF judges the status query result returned by HSS. If HSS feedback this HSS is faulty, then SLF ⁇ ! The HSS flag is not available; if the HSS does not return a response within the specified time, the SLF actively takes the HSS flag as unavailable.
  • FIG. 5 is a flow chart of the HSCS for querying the user's home to the SLF in the prior art, including the following steps:
  • Step 302 The CSCF completes the service control judgment.
  • Step 303 The CSCF initiates a request to the SLF to query the HSS information to which the user belongs.
  • Step 304 The SLF searches for the configured HSS information according to the user information in the request message, such as the user phone number, and returns the information to the CSCF.
  • Step 305 CSCF to the slave SLF
  • the HSS address obtained by the query is sent to the request, and the service processing is continued.
  • FIG. 7 is an improvement of the HSS process for querying the user ownership of the CSCF from the CSCF in the present invention, describes the internal flow of the SLF, selects an available HSS, and returns it to the CSCF. Includes the following steps.
  • Step 501 The CSCF receives the service request, which may be a user registration or a call request.
  • Step 502 The CSCF completes the service control judgment.
  • Step 503 The CSCF initiates a request to the SLF to query the HSS information to which the user belongs.
  • Step 504 The SLF searches for the configured HSS group information according to the user information in the request message, such as the user's phone number, and selects an available HSS to return to the CSCF.
  • Step 505 The CSCF sends a request to the HSS address obtained from the SLF query to continue the service. deal with.

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

Abstract

L'invention concerne un sous-système multimédia IP pour sélectionner automatiquement un serveur d'abonné local. Le sous-système multimédia IP comprend : une pluralité de serveurs d'abonnés locaux (HSS); un dispositif à fonction de commande de session d'appels pour demander des informations HSS à un dispositif à fonction de localisation d'abonné; des interfaces de demande d'état placées respectivement entre le dispositif à fonction de localisation d'abonné et la pluralité de serveurs HSS; et un dispositif à fonction de localisation d'abonné pour demander les états de la pluralité de HSS via l'interface de demande d'état en fonction d'un temps prédéterminé, pour mettre à jour des enregistrements, et pour sélectionner, lorsque le dispositif à fonction de commande de session d'appels demande des informations HSS au dispositif à fonction de localisation d'abonné, un HSS disponible et renvoyer ses informations au dispositif à fonction de commande de session d'appels en fonction des états enregistrés de la pluralité de HSS. Lorsqu'un HSS tombe en panne, il peut être reconnu par la fonction de localisation d'abonné (SLF) dans le temps, et le chemin d'accès de la fonction de commande de session d'appels (CSCF) peut être commuté automatiquement sur un HSS de secours pour que le côté SLF puisse tolérer des incidents, ce qui permet de garantir la validité du service.
PCT/CN2006/003685 2006-10-18 2006-12-29 Sous-système multimédia ip pour sélectionner automatiquement un serveur d'abonné local WO2008046266A1 (fr)

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CN200610152802.X 2006-10-18
CN200610152802.XA CN101090568A (zh) 2006-10-18 2006-10-18 自动选择归属用户服务器的ip多媒体子系统

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Cited By (3)

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WO2011064492A1 (fr) * 2009-11-27 2011-06-03 France Telecom Procede de basculement d'un hss primaire sur un hss de secours dans un reseau ip
WO2015135486A1 (fr) * 2014-03-13 2015-09-17 电信科学技术研究院 Sélection d'un procédé de positionnement, et procédé de commande et appareil associé
CN105049230A (zh) * 2015-06-15 2015-11-11 中兴国通通讯装备技术（北京）有限公司 一种基于域名系统的分布式多媒体子系统的车辆容灾方法及其车辆容灾系统

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CN101459533B (zh) * 2008-04-16 2011-10-26 中兴通讯股份有限公司 一种下一代网络中改进的应用服务器容灾的系统及方法
CN102487495B (zh) * 2010-12-02 2015-05-20 中兴通讯股份有限公司 Hss异常时实现呼叫的方法及cscf
CN102624731B (zh) * 2012-03-13 2014-11-05 华为技术有限公司 呼叫处理方法、系统及服务器
CN103593369B (zh) * 2012-08-16 2017-02-08 成都鼎桥通信技术有限公司 Hss数据查询、更新方法及处理系统

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WO1997008883A1 (fr) * 1995-08-22 1997-03-06 Motorola Inc. Systeme et procede de gestion des informations sur l'emplacement d'une unite d'abonne dans un reseau de communications integre
EP1643719A1 (fr) * 2004-09-30 2006-04-05 Lucent Technologies Inc. Méthode et dispositif pour la mise à disposition de capacité d'acheminement SLF distribuée dans un réseau du type à sous domaine multimédia (IMS)
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011064492A1 (fr) * 2009-11-27 2011-06-03 France Telecom Procede de basculement d'un hss primaire sur un hss de secours dans un reseau ip
US9021300B2 (en) 2009-11-27 2015-04-28 Orange Method of changing over from a primary HSS to a backup HSS in an IP network
WO2015135486A1 (fr) * 2014-03-13 2015-09-17 电信科学技术研究院 Sélection d'un procédé de positionnement, et procédé de commande et appareil associé
US9942714B2 (en) 2014-03-13 2018-04-10 China Academy Of Telecommunications Technology Method and apparatus for selecting a positioning scheme, method and apparatus for controlling a positioning scheme to be selected
CN105049230A (zh) * 2015-06-15 2015-11-11 中兴国通通讯装备技术（北京）有限公司 一种基于域名系统的分布式多媒体子系统的车辆容灾方法及其车辆容灾系统
CN105049230B (zh) * 2015-06-15 2019-01-29 中兴国通通讯装备技术（北京）有限公司 一种基于域名系统的分布式多媒体子系统的车辆容灾方法及其车辆容灾系统

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