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公开(公告)号：WO2009065334A1
公开(公告)日：2009-05-28
申请号：PCT/CN2008/072752
申请日：2008-10-20
Inventor： 顾炯炯
CPC classification number: H04W36/0011 , H04L65/1016 , H04L65/1073 , H04W36/14
Abstract: The invention includes a method, system and device for switching across packet domain based on IP multimedia subsystem, the invention's application make that multi mode terminal do not need to register to IMS network integrallty once more after it switched to the switching target packet domain, and that the across packet domain switching rate for multimedia real-time session be improved effectively. And, in the process of switching, the flows of interaction signals between terminal and network do not need relating to the S-CSCF and SIP AS of IMS core network, which improve the switching efficiency of the multimedia real-time session.
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公开(公告)号：WO2006116921A1
公开(公告)日：2006-11-09
申请号：PCT/CN2006/000822
申请日：2006-04-27
CPC classification number: H04L9/3271 , H04L9/3236 , H04L63/08 , H04L65/1016 , H04L2209/60 , H04L2209/76 , H04L2209/80
Abstract: A method for authenticating user terminal in IMS network, the method includes: with regard to user request, Service-Call Session Control Function(S-CSCF) entity creates the authentication challenge utilizing Digest Authentication Algorithm, and sends the authentication challenge to user terminal through Proxy- Call Session Control Function(P-CSCF) entity; the user terminal creates the authentication response utilizing Digest Authentication Algorithm according to the user key and associated parameters with said authentication challenge, and sends the authentication response to S-CSCF entity through S-CSCF entity; S-CSCF entity authenticates said authentication response utilizing Digest Authentication Algorithm according to HAI and associated parameters, if the authentication passes, then determines that the user terminal is authenticated successfully, otherwise, determines that the user terminal is authenticated failure.
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公开(公告)号：WO2011144080A2
公开(公告)日：2011-11-24
申请号：PCT/CN2011/074651
申请日：2011-05-25
CPC classification number: H04M3/54 , H04M3/4211 , H04M3/42272 , H04M3/42331 , H04M7/006 , H04M2203/557
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公开(公告)号：WO2008019604A1
公开(公告)日：2008-02-21
申请号：PCT/CN2007/070318
申请日：2007-07-26
IPC: H04L1/22
CPC classification number: H04L1/22
Abstract: A method for improving service reliability sets corresponding redundant AS for default AS. S-CSCF triggers the default AS to provide service for user, and if the default AS is broken, the corresponding redundant AS is selected to provide service for user. A system for improving service reliability is also presented. The method and the system ensure that there is not only one AS for providing service for user, and when the default AS is broken, the corresponding redundant AS can continue to provide service for user. So that service lost is avoidable and service quality is ensured.
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Patent Agency Ranking
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公开(公告)号：WO2008025272A1
公开(公告)日：2008-03-06
申请号：PCT/CN2007/070392
申请日：2007-07-31
CPC classification number: H04L29/06027 , H04L63/0435 , H04L63/067 , H04L65/1006
Abstract: A Session Initiated Protocol system, i.e. a SIP system, a means for establishing a security channel and the method thereof are provided. The SIP system includes a terminal and a web server, wherein the terminal is for sending a register request, calculating an :ncryption key same as the encryption key of a web server based on the corresponding information from the web server and the information stored in the said terminal, and establishing a security channel with the web server based on the said encryption keys, and the web server is for receiving the register request from the terminal, calculating and storing the encryption key same as the encryption key of the terminal based on the request of the terminal and the information stored in the web server, establishing the security channel with the terminal based on the said encryption keys, and sending the subsequently respond information to the terminal. During the SIP system performs the authentication process through the HTTP Digest mechanism, the web server and the terminal calculate the respective encryption keys respectively, thereby a security channel can be established between the web server and the terminal.
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公开(公告)号：WO2008148326A1
公开(公告)日：2008-12-11
申请号：PCT/CN2008/070935
申请日：2008-05-12
IPC: H04L12/56
CPC classification number: H04L12/56
Abstract: A method, a system, a business agent and a terminal for realizing convergence of IPTV business and communication business are provided. The method includes that a business agent entity generates a communication state notification information based on the communication business information and a binding relation of a communication terminal user identification and an IPTV terminal user identification, after receiving a communication business information transmitted by a communication terminal; the communication state notification information is transmitted to the IPTV terminal to carry out a process. The system includes an IPTV terminal and a business agent entity. The business agent entity includes a storing module, a receiving module, a notification information generating module and a transmitting module; or includes a storing module, a receiving module, an information converting module and a transmitting module. The terminal includes a notification information receiving module, an information processing module and a communication state displaying module; or includes a business request information generating module and a transmitting module. The scheme realizes convergence of IPTV business and communication business.
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公开(公告)号：WO2008052464A1
公开(公告)日：2008-05-08
申请号：PCT/CN2007/070943
申请日：2007-10-23
IPC: H04L12/24
CPC classification number: H04L65/1016 , H04L69/40
Abstract: A method for implementing the disaster recovery of IMS includes: S-CSCF receives the register of the user, and backups the data that is necessary when renewing the user service process to the memory entity in the network; the I-CSCF homing the user receives the service request of the user; if it finds the current S-CSCF serving for the user fails, it distributes the new S-CSCF for the user and forwards the said service request to the new distributing S-CSCF; the new distributing S-CSCF enquires the user contract data and the former S-CSCF backup data from the memory entity, and renews the user service process according to the contract data and the backup data. There is also an apparatus for implementing disaster recovery of IMS. Using the technical proposal provided by the invention, after S-CSCF fails, the affected user can immediately renew the service when establishing a call, without waiting for the re-register triggered by the re-register timer of the user terminal to renew the network service, so as to implement to improve the network reliability without increasing the system burden.
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公开(公告)号：WO2007012270A1
公开(公告)日：2007-02-01
申请号：PCT/CN2006/001834
申请日：2006-07-25
IPC: H04L12/24
CPC classification number: H04L65/1016 , H04L41/0663 , H04L65/80 , H04L69/40 , H04W4/18 , H04W48/16 , H04W60/00 , H04W68/00
Abstract: A method for realizing the IMS network reliability is provided, in order to solve the issue that the user service in existing IMS is interrupted for a long term as a result of invalidation of network entity during the time period from the user successfully registering to the user initiating reregistration; the method comprises: the first network entity in IMS network acquires whether the second network entity which stores the data associated with the user registration is invalid; and if the first network entity acquires that the second network entity is invalid, then notifies the registered user to reregister. A method for acquiring the state change of the network entity within the IMS network is also provided.
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