CN102857900B - Access method of access equipment to IMS (IP multimedia subsystem) network and AGCF (access gateway control function) and S-CSCF (serving-call session control function) - Google Patents
Access method of access equipment to IMS (IP multimedia subsystem) network and AGCF (access gateway control function) and S-CSCF (serving-call session control function) Download PDFInfo
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- CN102857900B CN102857900B CN201110176011.1A CN201110176011A CN102857900B CN 102857900 B CN102857900 B CN 102857900B CN 201110176011 A CN201110176011 A CN 201110176011A CN 102857900 B CN102857900 B CN 102857900B
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- 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]
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- 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
- H04L65/1046—Call controllers; Call servers
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
- H04W12/069—Authentication using certificates or pre-shared keys
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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Abstract
The invention discloses an access method of access equipment to an IMS (IP multimedia subsystem) network and an AGCF (access gateway control function) and an S-CSCF (serving-call session control function) to simplify the registration flow. The method comprises the following steps that: when the access equipment accesses the IMS network through the AGCF, the AGCF decides to create a registration request carrying an authentication pass indication after connecting to the access equipment, and sends the registration request to the S-CSCF through an I-CSCF (interrogating-call session control function), wherein the authentication pass indication is used for the S-CSCF to decide whether to authenticate the access equipment. Compared with the prior art, through the scheme, the AGCF does not need to store the user authentication key information, thus the traditional user registration flow of the fixed-network access equipment accessing the IMS network through the AGCF is simplified. Meanwhile, since the AGCF does not need to store the authentication key, the operation and maintenance cost is reduced.
Description
Technical field
The present invention relates to moving communicating field, and in particular to a kind of access device passes through AGCF
(Access Gateway Control Function, abbreviation AGCF) accesses IMS (IP Multimedia subsystem, IP
IP multimedia subsystem, IMS) network method and AGCF and S-CSCF.
Background technology
IP multimedia subsystem (IP Multimedia subsystem, abbreviation IMS) is third generation partnership
Next generation network (the Next Genenation of (3rd Generation Partnership Project, abbreviation 3GPP) definition
Network, abbreviation NGN) standard, its distinguishing feature is to employ SIP (Session Initiation Protocol, meeting
Words initiation protocol) system, communicate it is unrelated with access, can possess media service control function and be separated with bearing capacity, exhale
Cry and separated with session, separated using with service, business is separated with network, and mobile network such as merges at various energy with internet service
Power.
The trend of communication network fusion development has been complied with the proposition of IMS.Major function entity in IMS systems includes：User
Equipment (User Equipment, abbreviation UE), proxy call conversation control function entity (Proxy call session
Control Function, abbreviation P-CSCF), query call conversation control function entity (Interrogating call
Session control Function, abbreviation I-CSCF), service call session control function entity (Serving call
Session control Function, abbreviation S-CSCF), home subscriber server (Home subscriber Server, letter
Claim HSS), and application server (Application Server, abbreviation AS).
The concept of soft switch (Soft Switch, abbreviation SS) be the later stage nineties 20th century on the basis of IP phone progressively
Grow up, be in communication network from arrowband to broadband transition, from circuit switching to packet switch evolution during it is progressively complete
Kind.Soft switch is commercial on a large scale in existing network, the objective network that IMS is merged as fixed net and mobile network, soft switch to
IMS evolution is inexorable trend.Traditional fixed network access device, such as H.248/ MGCP (Media Gateway
Control Protocol, abbreviation MGCP) access gateway (Access Media Gateway, abbreviation AG), can be by connecing
Function Access Gateway control function entity (Access Gateway Control Function, abbreviation AGCF) accesses IMS network, realizes
IMS related services, the network architecture is as shown in Figure 1.
In IMS network in the prior art, traditional fixed network access device, such as AG, IAD (Integrated Access
Device, integrated access equipment) etc., IMS network is accessed, it is necessary to AGCF is registered instead of user in IMS network by AGCF.
AGCF realizes the process of user's registration as shown in Fig. 2 comprising the following steps in current IMS systems：
S202, specific fixed terminal is connected with fixed network access device, traditional fixed network access device, such as AG/IAD,
It is connected with AGCF based on prior art；H.248/MGCP/323/V5 etc. the consensus standard that current AGCF is supported has, to be H.248
Example, AGCF receives service change (ServiceChange) request；
S204, AGCF are based on the connection of prior art completion and traditional fixed network access device, as a example by H.248, AGCF
ServiceChange Reply (service change reply) responses can be sent for ServiceChange requests；
S206, AGCF are based on prior art, registration request (register) of the construction based on Session Initiation Protocol, in request message
Public subscriber identification and private user identity are carried, and registration request is forwarded to I-CSCF；
S208, I-CSCF send user authentication request (User-Authorization-Request, abbreviation UAR) to HSS
Message, request distribution S-CSCF；
S210, HSS send user authentication response (User-Authorization-Answer, abbreviation UAA) and disappear to I-CSCF
Breath, returns to the S-CSCF name of distribution or the ability of S-CSCF in UAA；
Login request message is sent to selected S-CSCF by S212, I-CSCF；
S214, for security consideration, S-CSCF needs to be authenticated user authentication, it is necessary to recognize to HSS transmissions multimedia
Card request (Multimedia-Auth-Request, abbreviation MAR) obtains user authentication vector, and AGCF user typically uses SIP
Digest is authenticated；
S216, HSS send multimedia authentication response (Multimedia-Auth-Answer, abbreviation MAA) to S-CSCF, ring
Answer and carry Ciphering Key in message；
S218, S-CSCF send according to Ciphering Key information, construction challenge request (401 Unauthorized message)
To I-CSCF；
401 Unauthorized message are forwarded to AGCF by S220, I-CSCF；
S222, AGCF construct challenge responses registration message, and send using the Authentication Key information of the local user for preserving
To I-CSCF, KI is typically by being locally configured or by integrated service and OSS (Business ＆
Operation Support System, abbreviation BOSS) obtain；
After S224, I-CSCF receive login request message, UAR message, request distribution S-CSCF are sent to HSS；
S226, HSS send UAA message to I-CSCF, and the S-CSCF name of distribution is returned in UAA；
Login request message is sent to selected S-CSCF by S228, I-CSCF；
After S230, S-CSCF receive login request message, the legitimacy of user is judged, complete the authentication to user, authentication
By rear user configuring request of data (Server-Assignment-Request, abbreviation SAR) is sent to HSS；
S232, HSS store S-CSCF information, and the subscription data of user, Charging-Address information are passed through into user configuring number
S-CSCF is sent to according to response (Server-Assignment-Answer, abbreviation SAA) message；
S234, S-CSCF build succeed in registration response message, such as 200OK, and are sent to I-CSCF；
S236, AGCF receive the response of succeeding in registration that I-CSCF is forwarded, and complete user's registration.
It is necessary to improve above-mentioned register flow path.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of access device and accesses IMS network method and AGCF and S-
CSCF, simplifies register flow path.
In order to solve the above technical problems, accessing IP multimedia subsystem (IMS) net the invention provides a kind of access device
The method of network, including：
Access device by AGCF (AGCF) access IMS network during, AGCF complete with
After the connection of access device, decision-making construction carries authentication by the registration request for indicating, and the registration request is exhaled by inquiry
Conversation control function entity (I-CSCF) is made to be sent to service call session control function entity (S-CSCF), the authentication passes through
Indicate for whether being authenticated to the access device for the S-CSCF decision-makings.
Further, the AGCF decision-makings construction carries registration request of the authentication by instruction, including：AGCF is according to operation
The O＆M strategy of business, and/or whether the Authentication Key information of the accessing user of the access device is locally preserved, if decision-making is needed
Authentication is carried in the registration request by instruction, the then registration request that construction carrying authentication passes through instruction.
Further, after the S-CSCF receives registration request, if judging to carry authentication in the registration request
By indicating, then：Decision-making is not authenticated to the access device；Or, the O＆M strategy according to operator, and/or it is described
Whether network information decision-making where AGCF authenticates to the access device.
Further, the registration request includes initial registration request, refresh registration request or de-registration request.
Further, the registration request is sip message, and the authentication is placed in the SIP of the registration request by instruction
In head field or parameter.
In order to solve the above technical problems, present invention also offers a kind of AGCF (AGCF) entity, being used for
Access device is provided and accesses IP multimedia subsystem (IMS) network, the AGCF includes decision-making module, constructing module and sends mould
Block, wherein：
The decision-making module, during accessing IMS network by the AGCF in access device, completes and is connecing
After entering the connection of equipment, whether decision-making constructs the registration request for carrying authentication by instruction；
The constructing module, for the decision-making module decision-making construction carry authentication by indicate registration request when,
Construction carries registration request of the authentication by instruction；
The sending module, the registration request for the constructing module to be constructed passes through query call conversation control function
Entity (I-CSCF) is sent to service call session control function entity (S-CSCF), and the authentication is by indicating for for described
Whether S-CSCF decision-makings authenticate to the access device.
Further, whether the decision-making module is to construct carrying authentication by indicating for decision-making in the following ways
Registration request：Whether O＆M strategy according to operator, and/or the authentication of the local accessing user for preserving the access device is close
Key information carries out decision-making.
Further, the registration request is sip message, and the constructing module is for constructing carrying in the following ways
The registration request that authentication passes through instruction：The authentication is placed in the SIP head field of the registration request or parameter by indicating.
In order to solve the above technical problems, present invention also offers a kind of service call session control function entity (S-
CSCF), IP multimedia subsystem (IMS) network is accessed for providing access device, the S-CSCF includes receiver module, judges
Module and decision-making module, wherein：
The receiver module, the registration request for receiving AGCF (AGCF) transmission；
The judge module, for judging whether carry authentication by indicating in the registration request；
The decision-making module, for judging the registration request in judge module in carry authentication by indicate, decision-making
Perform any one in operating below：
The access device is not authenticated；
Whether network information decision-making where the O＆M strategy according to operator, and/or the AGCF enters to the access device
Row authentication.
Compared with prior art, by such scheme, AGCF is upper need not to preserve subscriber authentication key information, and S-CSCF passes through
Judge that authentication, by indicating, completes the authentication to user, simplify traditional fixed network access device and IMS network is accessed by AGCF
User's registration flow.Simultaneously as KI need not be preserved on AGCF, O＆M cost is reduced, and be not in
The inconsistent situation of key on AGCF and HSS.In addition, the fixed of AG/IAD and AGCF is accessed in technology at present, have been able to protect
The security of user is demonstrate,proved, the method for simplifying of this paper will not be impacted to the security of access device.
Brief description of the drawings
Fig. 1 is that existing fixed network user accesses IMS network architecture schematic diagram；
Fig. 2 is the flow chart that known AGCF accesses IMS network user's registration；
Fig. 3 is that AGCF accesses the flow chart of IMS network user's registration implementation one；
Fig. 4 is the structural representation of embodiment of the present invention AGCF and S-CSCF.
Specific embodiment
Existing procedure analysis is found, IMS network can be completed because AGCF needs the KI for preserving IMS user
User's registration, one side AGCF needs to preserve KI, increased O＆M cost, is easily caused on AGCF and HSS key not
Unanimously；The current AGCF user's registration flow slightly complicateds of another aspect.Connect by AGCF in view of traditional fixed network access device
Enter IMS network, can guarantee that the security of accessing user, therefore, provided herein is the simplification side that a kind of access device accesses IMS network
Case, including：
Access device during IMS network is accessed by AGCF, AGCF after the connection of completion and access device, certainly
Plan construction carries authentication by the registration request for indicating, and the registration request is sent into S-CSCF, the mirror by I-CSCF
Whether power is by indicating for being authenticated to the access device for the S-CSCF decision-makings.
Preferably, above-mentioned registration request includes initial registration request, refresh registration request or de-registration request.
It is compatible with prior art, whether AGCF according to the O＆M strategy of operator, and/or locally can preserve the access
The conditions such as the Authentication Key information of the accessing user of equipment come whether decision-making carries authentication by indicating in the registration request, example
Such as, if AGCF does not preserve the Authentication Key information of the accessing user of the access device locally, carry in the registration request
The authentication is by indicating.
AGCF and S-CSCF are generally deployed in trustable network, but for untrusted network, in order to prevent untrusted network
In deceptive practices, S-CSCF can receive authentication by instruction after, according to O＆M strategy and/or visited network information
(the place network information of such as AGCF), whether decision-making authenticates to the access device, if decision-making is needed to the access device
Authenticated, then ignored authentication by configured information, still the access device is authenticated.
Preferably, registration request is sip message, and the authentication is placed in the SIP head field or ginseng of registration request by instruction
In number, the SIP head field can be the SIP head field of existing SIP head field, or extension, and the parameter can also be
Existing parameter or spreading parameter.
The above method can be not only used for fixed network access device, can be also used for mobile access equipment.
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
In order to simplify the register flow path that traditional access device accesses IMS network by AGCF, while solve AGCF preserving
The consistency problem of subscriber authentication key, the present embodiment flow is as shown in figure 3, comprise the following steps：
S302, traditional fixed network access device, such as AG/IAD is connected based on prior art with AGCF.To be H.248
Example, AGCF receives ServiceChange requests；
S304, AGCF are based on the connection of prior art completion and traditional fixed network access device, as a example by H.248, AGCF
Reply responses can be sent for ServiceChange requests；
S306, AGCF registration request of the construction based on Session Initiation Protocol, AGCF judge the local accessing user without access device
KI, decision-making carried in request message authentication by indicate, it is desirable to S-CSCF is not authenticated to user；
AGCF is based on the registration request that prior art configuration is based on Session Initiation Protocol.
Whether whether AGCF carrys out decision-making in request except judging the KI of the local accessing user for preserving access device
Authentication is carried in message outer by indicating, decision-making can also be carried out according to other O＆M strategies of operator, if O＆M plan
Slightly specify to authenticate all of access device, then AGCF does not carry authentication by indicating in request message, if fortune
Dimension policy definition is not authenticated to all of access device, then AGCF carries authentication by indicating in request message,
Or O＆M strategy can specify that the condition of the access device that needs are authenticated, AGCF is according to the regulation decision-making of O＆M strategy
The no authentication that carried in request message is by indicating.
Authentication by indicate to utilize existing SIP head field or parameter, or extension SIP head field or
Parameter, integrity protection (integrity-protected) parameter is set in will such as authenticating (Authorization) head "
auth-done″。
Registration request is forwarded to I-CSCF by S308, AGCF, and authentication is carried in request message by indicating；
S310, I-CSCF send user authentication request UAR, request distribution S-CSCF to HSS；
S312, HSS send user authentication response message to I-CSCF, and the S-CSCF name or S- of distribution are returned in UAA
The ability of CSCF；
Login request message is forwarded to selected S-CSCF by S314, I-CSCF, and authentication is carried in request message by referring to
Show information, such as integrity-protected parameter informations need to be delivered to S-CSCF in Authorization heads；
S316, S-CSCF are parsed and are recognized authentication by configured information, such as in discovery Authorization heads
Integrity-protected parameters are " auth-done ", then it is assumed that subscription authentication passes through, and decision-making is not entered to the access device
Row authentication；
In other embodiments, S-CSCF can have the ability for ignoring the authentication by instruction, and according to O＆M strategy
And/or whether network information decision-making where AGCF authenticates to the access device.Such as where the AGCF network information is indicated should
AGCF is in untrusted network, then S-CSCF can be authenticated with decision-making to the registration that the AGCF is asked.
S318, S-CSCF send user configuring request of data to HSS；
S320, HSS store S-CSCF information, and the subscription data of user, Charging-Address information are sent by SAA message
To S-CSCF；
S322, S-CSCF build succeed in registration response message, such as 200OK, and are sent to I-CSCF；
S324, AGCF receive the response of succeeding in registration that I-CSCF is forwarded, and complete user's registration.
The AGCF that IMS network is accessed for providing access device of the above method is realized, as shown in figure 4, including decision model
Block, constructing module and sending module, wherein：
The decision-making module, during accessing IMS network by the AGCF in access device, completes and is connecing
After entering the connection of equipment, whether decision-making constructs the registration request for carrying authentication by instruction；
The constructing module, for the decision-making module decision-making construction carry authentication by indicate registration request when,
Construction carries registration request of the authentication by instruction；
The sending module, for the registration request that the constructing module is constructed to be sent into S-CSCF by I-CSCF,
Whether the authentication is by indicating for being authenticated to the access device for the S-CSCF decision-makings.
Specifically, whether the decision-making module of the AGCF is to construct carrying authentication by indicating for decision-making in the following ways
Registration request：O＆M strategy according to operator, and/or locally whether preserve the authentication of the accessing user of the access device
Key information carries out decision-making.
Preferably, registration request is sip message, and the constructing module is logical for constructing carrying authentication in the following ways
Cross the registration request for indicating：The authentication is placed in the SIP head field of the registration request or parameter by indicating.
The S-CSCF that IMS network is accessed for providing access device of the above method is realized, as shown in figure 4, including receiving
Module, judge module and decision-making module, wherein：
The receiver module, the registration request for receiving AGCF (AGCF) transmission；
The judge module, for judging whether carry authentication by indicating in the registration request；
The decision-making module, for judging the registration request in judge module in carry authentication by indicate, decision-making
Perform any one in operating below：
The access device is not authenticated；
Whether network information decision-making where the O＆M strategy according to operator, and/or the AGCF enters to the access device
Row authentication.
Using present invention method, accessed for traditional fixed network equipment, AGCF is carried in a registration request message
Authentication, without being authenticated to user again, is done directly user by configured information, S-CSCF identification authentications by configured information
Registration.On the one hand the method simplifies AGCF user's registration flows, and another aspect AGCF need not preserve subscriber authentication key, it is easy to
The O＆M of IMS network.
One of ordinary skill in the art will appreciate that all or part of step in the above method can be instructed by program
Related hardware is completed, and described program can be stored in computer-readable recording medium, such as read-only storage, disk or CD
Deng.Alternatively, all or part of step of above-described embodiment can also be realized using one or more integrated circuits.Accordingly
Ground, each module/unit in above-described embodiment can be realized in the form of hardware, it would however also be possible to employ the shape of software function module
Formula is realized.The present invention is not restricted to the combination of the hardware and software of any particular form.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence
Know those skilled in the art and work as and various corresponding changes and deformation, but these corresponding changes and change can be made according to the present invention
Shape should all belong to the protection domain of appended claims of the invention.
Claims (8)
1. a kind of method that access device accesses IP multimedia subsystem (IMS) network, including：
During IMS network is accessed by AGCF (AGCF), AGCF is completed and accessed access device
After the connection of equipment, decision-making construction carries registration request of the authentication by instruction, by the registration request by query call meeting
Words control function entity (I-CSCF) are sent to service call session control function entity (S-CSCF), and the authentication is by indicating
For whether being authenticated to the access device for the S-CSCF decision-makings；
After the S-CSCF receives registration request, if carrying authentication in judging the registration request by indicating,：
Decision-making is not authenticated to the access device；Or
Whether the network information where the O＆M strategy and/or the AGCF according to operator, decision-making reflects to the access device
Power；If decision-making needs to authenticate the access device, ignore authentication by configured information, still the access device is entered
Row authentication.
2. the method for claim 1, it is characterised in that：
The AGCF decision-makings construction carries registration request of the authentication by instruction, including：
Whether AGCF is close according to the O＆M strategy of operator, and/or the authentication of the local accessing user for preserving the access device
Key information, if decision-making needs to carry in the registration request authentication by instruction, construction carries registration of the authentication by instruction
Request.
3. the method for claim 1, it is characterised in that：
The registration request includes initial registration request, refresh registration request or de-registration request.
4. the method for claim 1, it is characterised in that：
The registration request is sip message, and the authentication is placed in the SIP head field or parameter of the registration request by instruction
In.
5. a kind of AGCF (AGCF) entity, IP multimedia subsystem (IMS) is accessed for providing access device
Network, the AGCF includes decision-making module, constructing module and sending module, wherein：
The decision-making module, during accessing IMS network by the AGCF in access device, sets in completion with access
After standby connection, whether decision-making constructs the registration request for carrying authentication by instruction；
The constructing module, for when the decision-making module decision-making constructs carrying and authenticates the registration request by indicating, constructing
Carry registration request of the authentication by instruction；
The sending module, the registration request for the constructing module to be constructed passes through query call conversation control function entity
(I-CSCF) service call session control function entity (S-CSCF) is sent to, the authentication is by indicating for supplying the S-
Whether CSCF decision-makings authenticate to the access device；
The decision-making module is whether that the registration request for carrying authentication by instruction is constructed for decision-making in the following ways：
The Authentication Key information of O＆M strategy and/or the local accessing user for whether preserving the access device according to operator
To carry out decision-making.
6. AGCF as claimed in claim 5, it is characterised in that：
The registration request includes initial registration request, refresh registration request or de-registration request.
7. AGCF as claimed in claim 5, it is characterised in that：
The registration request is sip message, and the constructing module is for constructing carrying authentication in the following ways by indicating
Registration request：The authentication is placed in the SIP head field of the registration request or parameter by indicating.
8. a kind of service call session control function entity (S-CSCF), IP multimedia subsystem is accessed for providing access device
(IMS) network, the S-CSCF includes receiver module, judge module and decision-making module, wherein：
The receiver module, the registration request for receiving AGCF (AGCF) transmission；
The judge module, for judging whether carry authentication by indicating in the registration request；
The decision-making module, for judging the registration request in judge module in carry authentication by indicate, decision-making perform
Below operate in any one：
The access device is not authenticated；
Whether network information decision-making where the O＆M strategy according to operator, and/or the AGCF reflects to the access device
Power, if decision-making needs to authenticate the access device, ignores authentication by configured information, and still the access device is entered
Row authentication.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110176011.1A CN102857900B (en) | 2011-06-27 | 2011-06-27 | Access method of access equipment to IMS (IP multimedia subsystem) network and AGCF (access gateway control function) and S-CSCF (serving-call session control function) |
| PCT/CN2012/071091 WO2013000285A1 (en) | 2011-06-27 | 2012-02-14 | Method for access device to access ims network, and agcf and s-cscf |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110176011.1A CN102857900B (en) | 2011-06-27 | 2011-06-27 | Access method of access equipment to IMS (IP multimedia subsystem) network and AGCF (access gateway control function) and S-CSCF (serving-call session control function) |
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| CN102857900A CN102857900A (en) | 2013-01-02 |
| CN102857900B true CN102857900B (en) | 2017-05-24 |
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| DE102012002304A1 (en) | 2012-02-06 | 2013-08-08 | Audi Ag | Apparatus for automated driving of a motor vehicle and method for operating a motor vehicle |
| CN106341814A (en) * | 2015-07-08 | 2017-01-18 | 中兴通讯股份有限公司 | Voice service registration method and device |
| CN112953718A (en) * | 2019-11-26 | 2021-06-11 | 中国移动通信集团安徽有限公司 | Authentication method and device for IMS network user and call session control function entity |
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| CN100450207C (en) * | 2005-09-30 | 2009-01-07 | 华为技术有限公司 | Method and telecommunication system for accessing IMS domain to circuit domain users |
| CN101325759B (en) * | 2007-06-15 | 2012-06-27 | 华为技术有限公司 | Method and system for accessing IMS early authentication for subscriber terminal |
| CN102056154B (en) * | 2009-10-30 | 2014-05-07 | 华为技术有限公司 | IKE (Internet Key Exchange) authentication method and system, IKE response equipment and IKE initiating equipment |
-
2011
- 2011-06-27 CN CN201110176011.1A patent/CN102857900B/en active Active
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2012
- 2012-02-14 WO PCT/CN2012/071091 patent/WO2013000285A1/en active Application Filing
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| Publication number | Publication date |
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| CN102857900A (en) | 2013-01-02 |
| WO2013000285A1 (en) | 2013-01-03 |
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