CN1838610A - Method for realizing user registration in internet protocol multimedia subsystem - Google Patents
Method for realizing user registration in internet protocol multimedia subsystem Download PDFInfo
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- CN1838610A CN1838610A CN200510058908.9A CN200510058908A CN1838610A CN 1838610 A CN1838610 A CN 1838610A CN 200510058908 A CN200510058908 A CN 200510058908A CN 1838610 A CN1838610 A CN 1838610A
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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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
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- 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
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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
- H04L65/1083—In-session procedures
- H04L65/1095—Inter-network session transfer or sharing
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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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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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Abstract
The disclosed user register method in IPMS comprises: when S-CSCF cannot decide whether the current register process from one device just according to user label and physical address, it can determine further by additional register information of access network information, or user device label, or their combination. Besides, it provides the IMS network with SIP as signaling control protocol for user device management.
Description
Technical field
The present invention relates to internet protocol multimedia subsystem (IMS) field, be meant user's process registration among a kind of realization IMS especially.
Background technology
Development along with broadband network, mobile communication will not only be confined to traditional voice communication, multimedia service in conjunction with multiple medium types such as audio frequency, video, picture and texts will be carried out gradually, by with present (presence) business, the combination of data services such as short message service, webpage (WEB) browse service, positioning service, propelling movement (PUSH) business, file-sharing business can be satisfied user's multiple demand.For example, instant message in the messaging service and chatroom, multimedia short message; Amusement in the video traffic, multimedia messages, daily interchange; Catalogue in the ecommerce, search engine, shopping cart, order management, payment; Solitaire game in the game service, group's recreation; Missing in the positioning service, guide, warning; Address book in the personal assistant business, schedule, bookmark management, file storage, event notification, Email, or the like.
Under the promotion of multiple application, third generation partner program (3GPP, 3rd GenerationPartnership Project) normal structure has been released the IP multimedia subsystem, IMS (IMS based on Internet protocol (IP), IP Multimedia Subsystem) framework, purpose is to provide standardized open architecture to realize diversified multimedia application in communication network, provides more selection and abundanter impression to the user.
Fig. 1 shows the IMS configuration diagram, as shown in Figure 1, in R5 (Release 5) stage of 3GPP, introduced IMS domain, be called for short IMS, IMS is superimposed upon on the packet switching network, by call session management function (CSCF, Call Session Control Function), MGCF (MGCF, Media Gateway Control Function), media resource function (MRF, Multimedia Resource Function) and home signature user server functional entitys such as (HSS, HomeSubscriber Server) form.Wherein, CSCF is according to the difference in functionality of realizing, can be divided into serving CSCF (S-CSCF), proxy CSCF (P-CSCF) and three logic entities of inquiry CSCF (I-CSCF) again, S-CSCF is the service switching center of IMS, be used to carry out session control, peace preservation association's speech phase, managing user information, generation charge information, or the like; P-CSCF is the access point of terminal user access to IMS, is used to finish user's registration, carries out service quality (QoS) control and safety management, or the like; I-CSCF is used to realize route querying, as the intercommunication between in the IMS territory and the IMS territory, the distribution of S-CSCF is managed, and external network and other IMS territories is hidden opening up of network mend structure and configuration, generates charge information, or the like.MGCF realizes the function of control gateway, is used to realize the intercommunication between IMS network and other networks; MRF provides media resource, as the folding and unfolding sound, information transmitted between the terminal use is carried out encoding and decoding and multimedia conferencing bridge etc., MRF comprises media resource function control (MRFC, Multimedia Resource Function Controller) and (MRFP, MultimediaResource Function Processor).HSS is a User Information Database, stores the subscription data of user in the IMS network and configuration information etc.
Because it is irrelevant that the structure of IMS has been accomplished with the bottom bearer network, therefore, the IMS framework of 3GPP definition also can be applicable on other packet networks outside the packet field network of 3GPP definition, packet network as the 3GPP2 definition, wireless lan (wlan), next generation network (NGN) etc., realized the terminal type that uses with the user independence and with the independence of access network type, here, do not limit IMS and only be applied in network relevant with 3GPP and the application, the access network of other types and the business of bearer network and application also can realize by the IMS framework.
In IMS, use the signaling control protocol of words initiation protocol SIP usually as IP multimedia session.Session initiation Protocol (SIP, Session Initiation Protocol) is the IP phone signaling protocol that is proposed by the Internet engineering duty group (IETF, Internet Engineering Task Force).As what its name implied, SIP is used for initiation session, the foundation and the termination of the Multimedia session that can participate in a plurality of participants are controlled, and can dynamically adjust and revise session attribute, session attribute can be the session bandwidth requirement, the medium type of transmission, as voice, video and text etc., the code/decode format of medium is to the support of multicast and clean culture etc.SIP provides necessary protocol can provide following business to guarantee terminal system and acting server:
The user location
User capability
User availability
Call setup
Call treatment
Call Forwarding, comprise equivalent 800 types calling, no-answer call connection, call forwarding on busy, unconditioned call connection
Call number shifts, and this number is named by any mechanism
Personal mobility, mainly by single, arrive the callee with the address of location independent, even the callee has changed subscriber equipment
The mode that arrives the callee can be selected and provide to the negotiation of terminal type and selection, calling party, as passing through Internet telephony, mobile phone or answering service etc.
Terminal capability negotiation
Calling party and callee's authentication
Ignorant and instruct the calling transfer of formula
The invitation of multi-cast conferencing
Above-described protocol comprises:
Name translation and user location, no matter where the callee can both guarantee to call out arrives, and carries out the mapping of any descriptor to locating information, guarantees to call out or the essential details of session is supported
Feature negotiation is not all sides of calling out can both support the feature of same levels the time, allows the group relevant with calling to reach an agreement on the feature of support, can be Multi-Way Calling herein
Call out participant's management, in the calling procedure, the participant can introduce other users and add calling, or cancels other users' connection, and in addition, the user can be transferred or be changed to call out and keep
Call features changes, the user should be able to change call features in calling procedure, for example, a certain calling is changed to audio call, but in calling procedure, the user can open video capability as required, that is to say, one adds the third party who calls out and can open different call features in order to add this calling
The IMS home network distributes one or more private user identity (IMPI) for the user of each IMS business of having contracted, be used for using in processing procedures such as registration, mandate, management and chargings, can use the form of network access Identifier (NAI, Network Access Identifier); The user of each IMS business of having contracted also has one or more public user identity (IMPU), is used for indicating self when communicating with other IMS users.Usually, private user identity is externally not open, but public user identity is externally open, uses public user identity in the conversation procedure of all kinds of business.The user of the IMS business of below will having contracted abbreviates IMS user as.
In using the IMS network of SIP as signaling control protocol, each IMS user has one or more logical name, this logical name can be public user identity, uses the form of SIP resource identification (URI) to represent, indicating self when being used for communicating with other IMS users.Simultaneously, according to the position at the current place of IMS user, the IMS user of each logical name correspondence also has a physics contact address, and this physics contact address is placed in the territory, contact address (Contact), is used for the transmission of message.IMS user's logical name is relatively-stationary, being used for other IMS users calls out this IMS user, and the physics contact address is dynamic change, change along with IMS user's change in location, difference according to IMS user place bearer network, by the different physics contact address of respective carrier network allocation, use the physics contact address to communicate between network entity and the IMS user.
In order to finish calling, need be notified to the IMS network by the registration process physics contact address that IMS user is current, be that the user agent carries private user identity to the registrar transmission, logical name is registration (REGISTER) request of public user identity and physics contact address, this physics contact address is placed in the Contact territory of register requirement, like this, the IMS network just can be known IMS user's physics contact address, when other IMS users communicated by logical name and this IMS user, the IMS network just can be sent to corresponding information this physics contact address.When IMS user when an IMS network moves to another IMS network, need by the old physics contact address of log off procedure deletion, and use new registration process that new physics contact address is notified to current I MS network.Above-described user agent both can be IMS user, can be server again.The above registrar can be the S-CSCF in the IMS user attaching network.
IMS user needs to provide private user identity to the IMS network when registration, public user identity and physics contact address, private user identity is used for the IMS network user is authenticated, authorize and charging, if IMS user is by authentication, then this IMS user's public user identity and physics contact address and the corresponding relation between the two just can be stored on the business control function body in the IMS network, when IMS user and other IMS users communicated, the business control function body in the IMS network just can utilize public user identity and physics contact address to carry out respective handling.
Stipulate in the existing standard, the IMS network must avoid repeated registration or the inconsistent situation of stored information to occur, for example, when an IMS user moves in the new IMS network, though this IMS user registers in new IMS network, but related registration information such as physics contact address are not nullified in former IMS network, or the roaming agreement parameter between two IMS networks changes and causes for there not being the user to provide the condition of service to change, for satisfying the requirement in the standard, common processing is: when IMS user moves to a new IMS network, and the S-CSCF in the IMS network is when initiating registration, this S-CSCF that is positioned at IMS user attaching network finds that the last time registration of this public user identity of same private user identity is also not out of date, but the physics contact address of carrying in the new register requirement is different from the physics contact address of current storage, then must delete the related registration information such as physics contact address of current storage, this process is to finish by the log off procedure of S-CSCF initiation IMS network side, simultaneously, the new related registration information such as physics contact address of S-CSCF storage.
According to above description as seen, move to that new IMS network is not but nullified the log-on messages such as physics contact address in the former IMS network and the repeated registration that causes for fear of IMS user, require the S-CSCF in the IMS user attaching network must nullify old physics contact address and use new physics contact address, this predetermined process mode will make other IMS sessions make a mistake.The mistake that once may occur is below described.
The IMS network allows IMS user to use a plurality of physics of a public user identifier registration contact address, when other IMS user's requests are set up session with public user identity, S-CSCF is sent to respective request on the respective physical contact address according to the corresponding relation between public user identity and the physics contact address.It is corresponding with a private user identity that the IMS network does not limit each physics contact address, if two private user identity that the physics contact address is corresponding identical, the mobile hand-held device that passes through the mobile communications network access as IMS user can have identical private user identity and public user identity with the notebook computer that inserts by WLAN (WLAN), and can in the IMS network, register different physics contact addresses, this situation is legal originally, but but, the S-CSCF in the standard use this pressure of new physics contact address to limit owing to must nullifying old physics contact address, make this situation can't occur at all, promptly as long as IMS user uses second relevant device to initiate registration, will cause primary registration to be nullified by the IMS network, deletion is the physics contact address of registration for the first time, make that the user wished the demand that respective request is sent on each physics contact address can't be satisfied when other IMS user's requests were set up session with public user identity.
Summary of the invention
In view of this, the object of the present invention is to provide user's process registration among a kind of realization IMS, make that the registration process of IMS user in the IMS network is more perfect, reasonable.
In order to achieve the above object, the invention provides user's process registration among a kind of realization IMS, this method comprises:
A, S-CSCF receives register requirement, carry user ID in this register requirement, physics contact address and additional registration information, when S-CSCF determines that the physics contact address corresponding to described user ID of the physics contact address of carrying in the described register requirement and storage is inconsistent, judge whether the additional registration information of carrying in the described register requirement is identical with the additional registration information corresponding to described user ID of storage, if, then information of carrying in the S-CSCF storage register requirement and cancellation are corresponding to the log-on message of described user ID, otherwise information of carrying in the S-CSCF storage register requirement and reservation are corresponding to the log-on message of described user ID.
Described additional registration information is an access network information, judges described in the steps A whether the additional registration information of carrying in the described register requirement is all mutually with the additional registration information corresponding to described user ID of storage: whether the access network information corresponding to described user ID of judging the access network information that carries in the described register requirement and storage is identical.
Described additional registration information is a customer equipment identification, judges described in the steps A whether the additional registration information of carrying in the described register requirement is all mutually with the additional registration information corresponding to described user ID of storage: whether the customer equipment identification corresponding to described user ID of judging the customer equipment identification that carries in the described register requirement and storage is identical.
Described additional registration information is the combination of access network information and customer equipment identification, judge described in the steps A whether the additional registration information of carrying in the described register requirement is all mutually with the additional registration information corresponding to described user ID of storage: judge whether the access network information that carries in the described register requirement is identical with the access network information corresponding to described user ID that searches storage, if then continue to judge whether the customer equipment identification that carries in the described register requirement is identical with the customer equipment identification corresponding to described user ID of storage; Otherwise, the information of carrying in the S-CSCF storage register requirement.
In the territory, contact address of sip message, increase the feature tag of the described customer equipment identification of expression.
Described customer equipment identification comprises: the particular content of customer equipment identification type and customer equipment identification.
The head that sip message is set carries described customer equipment identification.
The device identification registrar that described customer equipment identification and corresponding state storage are provided with in the IMS network, this method further comprises: when IMS user uses business, by the state of device identification server lookup customer equipment identification,, then provide professional to IMS user if available; Otherwise refusal provides professional to IMS user.
Described log-on message comprises: private user identity, public user identity, physics contact address and additional registration information.
Determining described in the steps A that the physics contact address corresponding to described user ID of the physics contact address of carrying in the described register requirement and storage is inconsistent is: judge whether to search the log-on message corresponding to described user ID, if search, then continue to judge whether the physics contact address in physics contact address of carrying in the described register requirement and the log-on message that searches is identical; If do not search, then store the information of carrying in the register requirement.
According to the proposed method, can't be at S-CSCF according to user ID and physics contact address, determine current register flow path be by different user devices that uses the same subscriber sign or same user device initiate the time, be that S-CSCF is when determining that the physics contact address corresponding to user ID of the physics contact address of carrying in the register requirement and storage is inconsistent, can further determine according to judgement additional registration information, like this, make the registration of the different user devices that the use same subscriber identifies become possibility.The above additional registration information can be access network information, also can be customer equipment identification, also can be the combination of access network information and customer equipment identification.In addition, proposed among the present invention customer equipment identification is offered the IMS network as signaling control protocol with SIP, made the IMS network to manage subscriber equipment.
Description of drawings
Fig. 1 shows the IMS configuration diagram;
Fig. 2 shows IMS user's register flow path figure among the present invention;
Fig. 3 shows an embodiment implementation procedure schematic diagram among the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Among the present invention, can't be at S-CSCF according to user ID and physics contact address, determine current register flow path be by different user devices that uses the same subscriber sign or same user device initiate the time, be that S-CSCF is when determining that the physics contact address corresponding to user ID of the physics contact address of carrying in the register requirement and storage is inconsistent, can further determine according to judgement additional registration information, like this, make the registration of the different user devices that the use same subscriber identifies become possibility.
Fig. 2 shows IMS user's register flow path figure among the present invention, and as shown in Figure 2, IMS user's registration implementation procedure may further comprise the steps:
Step 201～step 202:S-CSCF receives register requirement, carry private user identity, public user identity, physics contact address and additional registration information in this register requirement, S-CSCF judges whether to search and private user identity and the corresponding log-on message of public user identity then, if then execution in step 204; Otherwise, execution in step 203.The above additional registration information can be access network information, also can be customer equipment identification, also can be the combination of access network information and customer equipment identification.
Step 203:S-CSCF carries out normal register flow path, and the storage related registration information is as private user identity, public user identity, physics contact address and additional registration information.
Step 204:S-CSCF judges whether the physics contact address in the log-on message of the physics contact address of carrying in the register requirement and that search, current storage is identical, if then execution in step 205; Otherwise, execution in step 206.Physics contact address in the log-on message of that search, current storage is the physics contact address corresponding to described private user identity and public user identity.
Step 205:S-CSCF carries out normal heavy register flow path, and the storage related registration information is as private user identity, public user identity, physics contact address and additional registration information.
Step 206:S-CSCF judges whether the additional registration information in the log-on message of the additional registration information of carrying in the register requirement and that search, current storage is identical, if then execution in step 207; Otherwise, execution in step 208.Additional registration information in the log-on message of that search, current storage is the additional registration information corresponding to described private user identity and public user identity.
The related registration information that step 207:S-CSCF storage is new, as new private user identity, public user identity, physics contact address and additional registration information, and the log-on message of nullifying original related registration information, promptly searching, as original private user identity, public user identity, physics contact address and additional registration information.
The related registration information that step 208:S-CSCF storage is new, as new private user identity, public user identity, physics contact address and additional registration information, and the log-on message that keeps original related registration information, promptly searches, as original private user identity, public user identity, physics contact address and additional registration information.
If each subscriber equipment can only be supported a kind of access way, that is to say that subscriber equipment is a single-mode terminal, then the current location of subscriber equipment just can be distinguished by access network information, therefore S-CSCF can by with the access network information in the register requirement with search, the access network information of current storage compares, determine whether current register requirement is the register flow path that uses the subscriber equipment initiation of same subscriber sign, if new and old access network information difference, it is new and old access way difference, show that then current register flow path is to be initiated by the different user devices that uses the same subscriber sign, the related registration information that the S-CSCF storage is new, and keep original related registration information, if new and old access network information is identical, be that new and old access way is identical, show that then current register flow path is to be initiated by the same user device of using the same subscriber sign, the related registration information that the S-CSCF storage is new, and nullify original related registration information.The above access network information can be P-Access-Network-Info.
If subscriber equipment can be supported plurality of access modes simultaneously, just can't determine that current register requirement is whether corresponding to new register flow path by access network information, therefore can in register requirement, carry can the unique identification subscriber equipment customer equipment identification, like this, S-CSCF can by with customer equipment identification in the register requirement with search, the customer equipment identification of current storage compares, determine whether current register requirement is the register flow path that uses the subscriber equipment initiation of same subscriber sign, if new and old customer equipment identification difference, show that then current register flow path is to be initiated by the different user devices that uses the same subscriber sign, the related registration information that the S-CSCF storage is new, and keep original related registration information, if new and old customer equipment identification is identical, show that then current register flow path is to be initiated by the same user device of using the same subscriber sign, the related registration information that the S-CSCF storage is new, and nullify original related registration information.
In addition, consider backwards compatibility, promptly a part of subscriber equipment in the IMS network can send to customer equipment identification the IMS network, another part subscriber equipment can't send to customer equipment identification the IMS network, S-CSCF can be considered as the subscriber equipment that does not carry device identification in the register requirement a kind of default customer equipment identification, does not promptly carry customer equipment identification in the register requirement and has also identified a kind of subscriber equipment.If carried customer equipment identification in the register requirement, and there is not customer equipment identification in the log-on message of storing in the IMS network, then current register flow path is considered as is that different user devices by using the same subscriber sign is initiated respectively to S-CSCF, the related registration information that the S-CSCF storage is new, and keep original related registration information, vice versa.If all do not carry customer equipment identification in the new and old register requirement, then current register flow path is considered as is that same user device by using the same subscriber sign is initiated respectively to S-CSCF, the related registration information that the S-CSCF storage is new, and nullify original related registration information.
For the customer equipment identification among the present invention, can use the whole world to guarantee media interviews control (MAC) address of unique identification subscriber equipment.Consider that sign and the name to subscriber equipment may be different in the different access networks, therefore, can determine earlier that subscriber equipment is linked into the access network type that uses in the IMS network, further determine the sign of subscriber equipment on this basis again, can be earlier according to access network information, distinguished using the subscriber equipment of different access waies, if still can't determine current register flow path is to be initiated by different user devices that uses the same subscriber sign or same user device, then can further judge that according to customer equipment identification current register flow path is to be initiated by different user devices that uses the same subscriber sign or same user device, for example, the sign of the subscriber equipment that inserts by the GSM/GPRS/WCDMA mode is exactly international mobile contracted user's sign (IMEI, International Mobile Subscriber Identity); The sign of the subscriber equipment that inserts by xDSL/WLAN can be a MAC Address; The identification information that uses the subscriber equipment of cdma2000 access is exactly a mobile device sign (MEID, Mobile Equipment Identifier); Also have in some access networks and may also not define the such information of customer equipment identification, so in order to satisfy following demand, also can be the relevant information of these access networks definition customer equipment identifications, can subscriber equipment of unique identification in the network of this access technology but must guarantee to use at all.Specifically processing procedure is as shown in Figure 3:
Step 301～step 305 is basic identical.
Step 306:S-CSCF judge physics contact address in the log-on message of the physics contact address of carrying in the register requirement and that search, current storage different after, the access network information that carries in the register requirement and access network information in the log-on message that search, current storage are compared, judge whether access way is identical, if then execution in step 307; Otherwise, execution in step 309.Access network information in the log-on message of that search, current storage is the access network information corresponding to described private user identity and public user identity.
Step 307:S-CSCF judges whether the customer equipment identification in the log-on message of the customer equipment identification that carries in the register requirement and that search, current storage is identical, if then execution in step 308; Otherwise, execution in step 309.Customer equipment identification in the log-on message of that search, current storage is the customer equipment identification corresponding to described private user identity and public user identity.
Step 308 is identical with step 207.
Step 309 is identical with step 208.
In using the IMS network of SIP, can realize by following grammer after the notion of introducing access network information and customer equipment identification as signaling control protocol.A kind of possible expression way only represented in this grammer, only is the example that the present invention provides, and is not to be used to limit scope of the present invention, also can exist other to realize the identical expression way of purpose.
Access network information=" P-Access-Network-Info ": access network standard
Access network standard=access style * (SEMI access information)
Access style=" IEEE-802.11a "/" IEEE-802.11b "/" 3GPP-GERAN "/
″3?GPP-UTRAN-FDD″/″3GPP-UTRAN-TDD″/
″3GPP-CDMA2000″/token
Device identification=" device-identifier " (character string that is cited)
Access information=3GPP sub-district overall identification/3GPP UMTS access network cell ID/
The expansion access information
Wherein, 3GPP sub-district overall identification=" cgi-3gpp " (character string that token/ is cited), 3GPPUMTS access network cell ID=" utran-cell-id-3gpp " (character string that token/ is cited), the value that produces in expansion access information=processing procedure
Perhaps be expressed as:
P-Access-Network-Info＝″P-Access-Network-Info″HCOLON
access-net-spec
access-net-spec＝access-type*(SEMI?access-info)
access-type＝″IEEE-802.11a″/″IEEE-802.11b″/″3GPP-GERAN″/
″3GPP-UTRAN-FDD″/″3GPP-UTRAN-TDD″/
″3GPP-CDMA2000″/token
device?identifier＝″device-identifier″EQUAL(quoted-string)
access-info＝cgi-3gpp/utran-cell-id-3gpp/extension-access-info
Wherein, cgi-3gpp=" cgi-3gpp " EQUAL (token/quoted-string), utran-cell-id-3gpp=" utran-cell-id-3gpp " EQUAL (token/quoted-string), extension-access-info=gen-value
Here being defined among the RFC 3520 of token is used to one or more IP stream to carry out service quality (QoS) and authorizes.
The customer equipment identification that increases can be placed on below the access style, determines concrete customer equipment identification according to access style during use.For example, if access style is " IEEE-802.11a " or " IEEE-802.11b ", then customer equipment identification can be MAC Address; If access style is " 3GPP-GERAN " or " 3GPP-UTRAN-FDD " or " 3GPP-UTRAN-TDD ", then customer equipment identification is IMEI; If access style is " 3GPP-CDMA2000 ", then customer equipment identification is MEID.
Because customer equipment identification is extremely important concerning user and operator, therefore when using, to guarantee the fail safe of customer equipment identification, the security mechanism of IMS network can be guaranteed this point.
During concrete the application, customer equipment identification can be used as the part of access network information, provides in the lump when the IMS network provides access network information at subscriber equipment.The functional entity of being responsible for managing business in the IMS network can use customer equipment identification, also can come the processing procedure of auxiliary activities in conjunction with other information sometimes.
In using the IMS network of SIP as signaling control protocol, after introducing the notion of customer equipment identification, also can realize that following grammer only is a kind of possible expression way that the present invention provides by increase parameter in Contact header field, be not to be used to limit scope of the present invention.
In sip message, increase a feature tag (feature tag) and represent to may be defined as sip.identifier by customer equipment identification, at first indicate the type of customer equipment identification, further identify concrete customer equipment identification then.Typical value can comprise MAC, IMEI, MEID etc.After the type value is determined, following closely be exactly the particular content of customer equipment identification, for example, the customer equipment identification type is IMEI, then the customer equipment identification of back is exactly the concrete IMEI value of storing on this SIP UA counterpart terminal; If the customer equipment identification type is MAC, then the customer equipment identification of back is exactly the concrete MAC Address of this SIP UA counterpart terminal.Detailed content is referring to following example.
Contact：<sip：user@exampie.com>；audio；video；mobility＝″fixed″；
+message＝″TRUE″；identifier＝″IMEI″；imei＝″350112408932969″；
methods＝″INVITE，OPTIONS，BYE，CANCEL，ACK″；
schemes＝″sip，http″
Above-mentioned message format can be converted into following asserting:
(&(audio＝TRUE)
(video＝TRUE)
(sip.mobility＝fixed)
(message＝TRUE)
(|(sip.identifier＝IMEI)(sip.identifier.imei＝350112408932969))
(|(sip.methods＝INVITE)(sip.methods＝OPTIONS)
(sip.methods＝BYE)
(sip.methods＝CANCEL)(sip.methods＝ACK))
(|(sip.schemes＝sip)(sip.schemes＝http)))
Customer equipment identification can be used to register requirement and response message, OPTIONS response message, create in session request and the response message, as INVITE.
Also can in sip message, define a head specially and transmit customer equipment identification, its form is the same with the form of existing SIP head, it is following form: header=" header-name " HCOLONheader-value* (COMMA header-value) or head=" header-name ": concrete header value, concrete header value can be one or more, for example, header value is device-identifier, can further indicate the type of customer equipment identification, as IMEI, MAC or MEID, under the customer equipment identification type, be concrete customer equipment identification then.
There not be consideration how the information such as customer equipment identification of sip terminal to be sent to each functional entity in the SIP network in the existing SIP network, the user is after having lost subscriber equipment so, any people who obtains this subscriber equipment can use this subscriber equipment, and need not to pay any cost, this is unavoidable for IMS user's loss, can cause IMS user that the satisfaction of IMS network is reduced greatly, be a resistance for carrying out the IMS business.More seriously, more or less can store some user profile in the subscriber equipment, information such as private user identity that the user is used for authentication and a lot of public user identity have been stored as the IP multimedia service identification module (ISIM) that disposes on the IMS subscriber equipment or common user recognition of devices module (USIM), if lose, may cause the fail safe of IMS user's communications to have a strong impact on.In addition, consider along with development of science and technology, multiple access technology may and be deposited, following subscriber equipment also will be towards the direction evolution of multimode, a subscriber equipment can use different access waies to be linked into the IMS network in different access networks, needs for operator's maintenance and management, one within the specific limits can the unique identification subscriber equipment information also be very useful, like this, in the embodiments of the invention, carry customer equipment identification in the register requirement that S-CSCF receives, like this, can make with SIP and realize management subscriber equipment as the IMS network of signaling control protocol.For example, device identification registrar (DIR, Device IdentityRegister) is set in the IMS network, this device identification registrar is used to store IMS user's customer equipment identification, as IMEI, MAC Address, MEID etc.After the device identification registrar is set in the IMS network, unification manages to customer equipment identification by the device identification server, when IMS user uses business, just can at first arrive the status indicator of device identification registrar inquiry respective user equipment sign, if it is available, then the IMS network provides miscellaneous service to IMS user, otherwise refusal provides the miscellaneous service of IMS network to relative users.For example, when losing, subscriber equipment just can report the IMS network, the customer equipment identification of registration when then the network based IMS user of IMS is signatory, label at the device identification registrar, as add forbidding sign, like this, respective user equipment just is in disabled status, like this, when someone uses this user equipment access IMS network, will be owing to this customer equipment identification in the device identification server be in disabled status, and make user can't experience the miscellaneous service that the IMS network provides by this user equipment access IMS network.Further, but IMS network binding site business is followed the tracks of the subscriber equipment of losing, and obtains the present residing particular location of this subscriber equipment, gives relevant departments and handles.
Since among the present invention after S-CSCF receives register requirement, increase can make the registration of the different user devices that the use same subscriber identifies become possibility to the judgement of additional registration information, for example, certain IMS user has a palmtop PC and a portable terminal of supporting that GPRS inserts of supporting that WLAN/GPRS inserts simultaneously, these two subscriber equipmenies use identical IMPI and IMPU, so when this IMS user uses palmtop PC, can be registered on the IMS network by the GPRS mode, and when this IMS user uses the GPRS access to be registered to another portable terminal on the IMS network, S-CSCF can judge the register flow path that this is the initiation of different user devices by customer equipment identification, at this moment, what palmtop PC and portable terminal used all is the sign of unique identification subscriber equipment in the GPRS network, therefore S-CSCF can distinguish these different subscriber equipmenies, thereby can not initiate the log-on message that the deletion of network-initiated deregistration process has been stored; If palmtop PC has been registered in the IMS network by the GPRS mode, follow-up this IMS user carries this palmtop PC and roams into to another GPRS network, the last time is not nullified and oldly initiate once new register flow path by the GPRS mode again, at this moment, S-CSCF just can judge the repeated registration that this is same subscriber equipment by customer equipment identification, thereby initiate the network-initiated deregistration process, delete old log-on message, store new log-on message.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (10)
1, user's process registration in a kind of realization internet protocol multimedia subsystem is characterized in that this method comprises:
A, S-CSCF receives register requirement, carry user ID in this register requirement, physics contact address and additional registration information, when S-CSCF determines that the physics contact address corresponding to described user ID of the physics contact address of carrying in the described register requirement and storage is inconsistent, judge whether the additional registration information of carrying in the described register requirement is identical with the additional registration information corresponding to described user ID of storage, if, then information of carrying in the S-CSCF storage register requirement and cancellation are corresponding to the log-on message of described user ID, otherwise information of carrying in the S-CSCF storage register requirement and reservation are corresponding to the log-on message of described user ID.
2, method according to claim 1, it is characterized in that, described additional registration information is an access network information, judges described in the steps A whether the additional registration information of carrying in the described register requirement is all mutually with the additional registration information corresponding to described user ID of storage: whether the access network information corresponding to described user ID of judging the access network information that carries in the described register requirement and storage is identical.
3, method according to claim 1, it is characterized in that, described additional registration information is a customer equipment identification, judges described in the steps A whether the additional registration information of carrying in the described register requirement is all mutually with the additional registration information corresponding to described user ID of storage: whether the customer equipment identification corresponding to described user ID of judging the customer equipment identification that carries in the described register requirement and storage is identical.
4, method according to claim 1, it is characterized in that, described additional registration information is the combination of access network information and customer equipment identification, judge described in the steps A whether the additional registration information of carrying in the described register requirement is all mutually with the additional registration information corresponding to described user ID of storage: whether the access network information corresponding to described user ID of judging the access network information that carries in the described register requirement and storage is identical, if then continue to judge whether the customer equipment identification that carries in the described register requirement is identical with the customer equipment identification corresponding to described user ID of storage; Otherwise, the information of carrying in the S-CSCF storage register requirement.
5, according to claim 3 or 4 described methods, it is characterized in that, in the territory, contact address of sip message, increase the feature tag of the described customer equipment identification of expression.
6, method according to claim 5 is characterized in that, described customer equipment identification comprises: the particular content of customer equipment identification type and customer equipment identification.
According to claim 3 or 4 described methods, it is characterized in that 7, the head that sip message is set carries described customer equipment identification.
8, according to claim 3 or 4 described methods, it is characterized in that,
The device identification registrar that described customer equipment identification and corresponding state storage are provided with in the IMS network,
This method further comprises: when IMS user uses business, by the state of device identification server lookup customer equipment identification, if available, then provide professional to IMS user; Otherwise refusal provides professional to IMS user.
According to the described method of claim 1 to 4, it is characterized in that 9, described log-on message comprises: private user identity, public user identity, physics contact address and additional registration information.
10, according to the described method of claim 1 to 4, it is characterized in that, determining described in the steps A that the physics contact address corresponding to described user ID of the physics contact address of carrying in the described register requirement and storage is inconsistent is: judge whether to search the log-on message corresponding to described user ID, if search, then continue to judge whether the physics contact address in physics contact address of carrying in the described register requirement and the log-on message that searches is identical; If do not search, then store the information of carrying in the register requirement.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100589089A CN100362807C (en) | 2005-03-24 | 2005-03-24 | Method for realizing user registration in internet protocol multimedia subsystem |
| PCT/CN2006/000502 WO2006099815A1 (en) | 2005-03-24 | 2006-03-24 | A method for implementing the user registering in the ip multimedia subsystem and the system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100589089A CN100362807C (en) | 2005-03-24 | 2005-03-24 | Method for realizing user registration in internet protocol multimedia subsystem |
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|---|---|
| CN1838610A true CN1838610A (en) | 2006-09-27 |
| CN100362807C CN100362807C (en) | 2008-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100589089A Expired - Fee Related CN100362807C (en) | 2005-03-24 | 2005-03-24 | Method for realizing user registration in internet protocol multimedia subsystem |
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| Country | Link |
|---|---|
| CN (1) | CN100362807C (en) |
| WO (1) | WO2006099815A1 (en) |
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| CN100362807C (en) | 2008-01-16 |
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