CN101841801B - Methods and systems for registration and communication in IMS network and user terminal - Google Patents
Methods and systems for registration and communication in IMS network and user terminal Download PDFInfo
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Abstract
The invention discloses a method for registration in an IMS network, which comprises the following steps that: a user terminal respectively initiates a registration request to an IMS network corresponding to each home network domain name according to an IMPI and a plurality of home network domain names contained in ISIM, wherein the registration request contains the IMPI; and the IMS network authenticates the user terminal through a standard IMS registration flow according to the IMPI in the received registration request, and when the user terminal passes the authentication, the user terminal is registered in the network. Through the method, the user terminal can be registered in a plurality of IMS networks and further can perform session service in any registered network. The invention also discloses a system for registration in the IMS network, a communication method, a communication system and a user terminal.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of at IP Multimedia System (IP Multimedia System, IMS) middle registration and method for communicating, system and user terminal.
Background technology
IP Multimedia System (IP Multimedia System; IMS) identification of butt joint access customer is to utilize IMS private user identity (the IMS private user Identity that distributes to the user; IMPI) and IMS public user identity (IMS Public User Identity; IMPU) realize that the information of IMPI and IMPU is kept in the IMS service identification module (ISIM).
ISIM is the important component part in the IMS system, and ISIM has comprised the user and in the IMS system, operated needed various parameter: IMPI, IMPU, home network domain name, SQN sequence number and root key.IMPI is used for when the user registers, the user being discerned and authentication; IMPU is used to initiate dialogue-based initializtion protocol, and (user can be assigned with a plurality of IMPU for Session Initiated Protocol, the SIP) session of signaling; Home network domain name is used to resolve the entry point address of home network; Thereby register requirement is routed to user's home network; Only comprise a home network domain name in the ISIM card, the terminal of promptly inserting an ISIM card can only be registered to an IMS home network; The SQN sequence number is used for the user network is carried out authentication; Root key is used to generate authenticate key, and authenticate key comprises Integrity Key, encryption key and key set identifier, and Integrity Key is used to carry out the integrity protection of SIP signaling, and encryption key is used to provide the Confidentiality protection of SIP signaling.
Along with the fast development of IMS network technology, except operator began the commercialization of IMS technology, some large enterprises also independently disposed the IMS network in enterprises; For all departments of enterprise and enterprise staff provide communication service, in this case, enterprise staff possibly be the individual client of the IMS network that provides of operator; Be again the user of the IMS network that provides of enterprise; If enterprise staff hopes to insert simultaneously two networks, can only use two terminals, insert an ISIM card in each terminal; Perhaps use the terminal with two ISIM cards, this has brought inconvenience for user's experience.
Summary of the invention
The embodiment of the invention provide a kind of in the IMS network registration and method for communicating, system and user terminal; Make user terminal under the situation of inserting an ISIM card, in a plurality of IMS networks, to register, and then can in arbitrary registered network, carry out session service.
A kind of in the IMS network process registration, said method comprising the steps of:
User terminal is initiated register requirement to the corresponding IMS network of each home network domain name respectively according to the IMS private user identity IMPI and a plurality of home network domain name that comprise among the IMS service identification module ISIM, comprises said IMPI in the said register requirement;
Said IMPI in the network based register requirement that receives of IMS carries out authentication to user terminal, when authentication is passed through, user terminal is registered in network.
A kind of method that communicates, said method for communicating may further comprise the steps:
User terminal confirms to carry the IMS network of this session;
User terminal sends to the corresponding IMS network of said network identity according to this IMS network of network sign that registration process obtains with the session request;
Said IMS network is routed to session service the corresponding called user terminal of called user terminal sign that comprises in the conversation request.
A kind of user terminal, said user terminal comprises:
The ISIM module is used to preserve an IMPI and a plurality of home network domain name;
Request sending module is used for a plurality of home network domain name of comprising according to the ISIM module, initiates register requirement to the corresponding IMS network of each home network domain name respectively, comprises said IMPI in the said register requirement.
The embodiment of the invention is through being provided with a plurality of home network domain name in ISIM, user terminal is initiated register requirement to the corresponding IMS network of each home network domain name respectively, can make user terminal in many each IMS networks, register the guild's call business of going forward side by side.
Description of drawings
Fig. 1 is user terminal process registration schematic flow sheet in the IMS network in the embodiment of the invention one;
The information sketch map of Fig. 2 for comprising in the ISIM card in the embodiment of the invention one;
Fig. 3 is sent to two register requirement respectively the sketch map of the one IMS network and the 2nd IMS network for user terminal in the embodiment of the invention one;
Fig. 4 is sent to two register requirement respectively the sketch map of the one IMS network and the 2nd IMS network under roaming state for user terminal in the embodiment of the invention one;
Fig. 5 is the sketch map of communication means in the embodiment of the invention two;
Fig. 6 implements the system configuration sketch map in the IMS network, registered in three for the present invention;
Fig. 7 is a user terminal structural representation in the embodiment of the invention five.
Embodiment
The embodiment of the invention is improved the traditional I SIM; In comprising the ISIM card of an IMPI, disposed many covers log-on message, every cover log-on message comprises at least one IMPU that a home network domain name and user use in the corresponding IMS network of home network domain name.
The IMPI that relates in the various embodiments of the present invention is a kind of identify label with global uniqueness, and the IMS network can utilize IMPI to identify the user terminal that has this IMPI uniquely.When user terminal is registered, IMPI is included in all mails to the register requirement of IMS network from user terminal, can in the registration process of user terminal, be convenient to the IMS network with this user terminal is carried out authentication (comprise and register and register releasing again).IMPI can adopt network access identifier, and (Network Access Identifier, NAI) form is like username@operator.com.
Used identity when the IMPU that relates in the embodiment of the invention is user terminal requests and other telex networks.In the ISIM card one or more IMPU can be arranged, IMPU can be SIP URI or TEL URI form.
Below in conjunction with specific embodiment the present invention program is described in detail.
As shown in Figure 1, be the process registration schematic flow sheet in the IMS network of user terminal in the embodiment of the invention one, the register method among the embodiment one may further comprise the steps:
Step 101: the corresponding IMS network of each home network domain name that user terminal comprises in ISIM is initiated register requirement.
The information that comprises in the ISIM card in the embodiment of the invention one is as shown in Figure 2, comprises a plurality of home network domain name in the ISIM card, and these home network domain name are shared an IMPI.Each home network domain name comprises the entry address of corresponding IMS network, and therefore, user terminal can route to corresponding IMS network according to home network domain star register requirement.
Corresponding one group of SQN sequence number of each home network domain name and root key, the form of said SQN sequence number and authenticate key are that the corresponding IMS network of this home network domain name can the recognition data form.
Further, in the ISIM card, also comprise a plurality of IMPU, can confirm the IMPU that each home network domain name is corresponding according to the corresponding relation of predefined IMPU and home network domain name.A home network domain name can corresponding at least one IMPU.
Optimally, the said register requirement of initiating to the corresponding IMS network of a home network domain name can comprise: the IMPU that the said IMPI that this home network domain name is shared, this home network domain name and this home network domain name are corresponding.
After step 102:IMS network receives register requirement, the user is carried out authentication according to the IMPI in the register requirement.
Step 103: when authentication is passed through, user terminal is registered in the IMS network, promptly preserved the log-on message of said user terminal.At this moment; The IMS network can return the register response information that comprises the SQN sequence number to user terminal; User terminal compares according to SQN sequence number that receives and the SQN sequence number of self preserving, and when two SQN sequence numbers match, accepts the authentication to the IMS network.
Further,, then when authentication is passed through, also said IMPU is registered in the IMS network if also comprise the IMPU that home network domain name is corresponding in the register requirement, and the corresponding relation of the said IMPU of the said user terminal of preservation registration simultaneously and registration.
Description through step 101 to step 103 among the embodiment one; User terminal can utilize the ISIM card with unique IMPI; Initiate register requirement to a plurality of IMS networks simultaneously; After succeeding in registration, the subsequent user terminal can be in any registered IMS network executive communication professional, improved user's impression.
Respectively each step of embodiment one is described in detail below.
Supposing to have comprised two home network domain name at the ISIM card, is respectively first home network domain name and second home network domain name, and the corresponding IMS network of these two home network domain name is respectively an IMS network and the 2nd IMS network.
At first confirm the proxy call session control function module (Proxy-CSCF of corresponding IMS network according to home network domain name; P-CSCF) address; P-CSCF address in the promptly definite IMS network and the P-CSCF address in the 2nd IMS network are sent to the corresponding P-CSCF in P-CSCF address respectively with register requirement then.
Instruction from register requirement to an IMS network that initiate is following:
After user terminal is sent to the P-CSCF of an IMS network and the 2nd IMS network respectively with two register requirement; As shown in Figure 3; With the inquiry CSCF (Interrogating-CSCF that further utilizes in the IMS network; I-CSCF) and serving CSCF (Service-CSCF S-CSCF) accomplishes the subsequent user verification process.User terminal is set up two cover Security Associations with the P-CSCF of an IMS network and the 2nd IMS network respectively, and these two registration processes are relatively independent, do not exert an influence each other.
Because the IMS network that some enterprise disposes is inner the deployment, can't carry out the P-CSCF access point discovery through total Access Network, therefore the P-CSCF address of the corresponding IMS network of one or more home network domain name can be set in the ISIM card.
Distinguishingly; Be in when user terminal under the situation of roaming; Confirm one or more IMS networks; Said user terminal is not in the said IMS network's coverage area of confirming, user terminal sends register requirement through the P-CSCF of the IMS network (being roaming place IMS network) of current access to the IMS network of confirming then, promptly adopts IMS roaming mechanism.For example; As shown in Figure 4; User terminal is not in the scope of an IMS network coverage; But user terminal is known according to the information of the IMS network of current access: the P-CSCF in the IMS network of current access can be used as the P-CSCF of an IMS network, and then the user terminal register requirement that will send to an IMS network is transmitted to the I-CSCF in the IMS network through the P-CSCF of roaming place IMS network.If user terminal is not also in the coverage of the 2nd IMS network; And the P-CSCF in the IMS network of current access can not be as the P-CSCF of the 2nd IMS network, and then user terminal can be accomplished the registration under the roaming state with the P-CSCF that register requirement is sent to the 2nd IMS network through the mode (like the general packet radio service gprs roaming) of bearer network roaming.
After the method through the embodiment of the invention one, user terminal can communicate at an IMS network or the 2nd IMS network of registration.As shown in Figure 5, be the sketch map of communication means in the embodiment of the invention two, this communication process may further comprise the steps:
Step 201: the IMPU that user terminal uses according to initiation session confirms to carry the IMS network of this session.
Suppose user terminal successfully registration in an IMS network and the 2nd IMS network, wherein IMPU1 belongs to an IMS network, and IMPU2 belongs to the 2nd IMS network.When user terminal during, by this session of the IMS network carrying, when user terminal during with the IMPU2 initiation session, by the 2nd this session of the IMS network carrying with the IMPU1 initiation session.
Step 202: user terminal sends to definite IMS network with said conversation request.
In registration process, user terminal obtains IMS network of network sign, utilizes the network identity that obtains that the session request is sent to definite said IMS network.
If confirm that the network of this session of carrying is an IMS network, then the session request routed to the P-CSCF of an IMS network.
Step 203:IMS network receives said conversation request, and session service is routed to the corresponding called user terminal of called user terminal sign that comprises in the conversation request.
Because in step 103, IMPU is registered in an IMS network, and the corresponding relation of the said IMPU of the said user terminal of preservation registration simultaneously and registration, then an IMS network can utilize the IMPU information in the conversation request to carry out session service.
In like manner, user terminal as called process in because user terminal is all registered in an IMS network and the 2nd IMS network, the call request of no matter from which network sending all can arrive user terminal, and is identical with the ordinary call process.
Belong under the same inventive concept with the embodiment of the invention one; The present invention implements three a kind of system that in the IMS network, registers is provided; As shown in Figure 6, said system comprises: the user terminal 11 and the IMS network equipment 12, wherein: an IMPI and a plurality of home network domain name that user terminal 11 is used for comprising according to ISIM; Initiate register requirement to the corresponding IMS network of each home network domain name respectively, comprise said IMPI in the said register requirement; The IMS webserver 12 is used for according to the said IMPI of the register requirement that receives user terminal being carried out authentication, when authentication is passed through, user terminal is registered in network.The IMS webserver is also registered the corresponding IMPU of IMPI simultaneously.
The IMS network equipment 12 in the embodiment of the invention three can comprise P-CSCF, I-CSCF and the S-CSCF in the IMS network.Further, can also comprise that other are used for user terminal is carried out the entity of registration operation.
The embodiment of the invention four also provides a kind of communication system, and the user terminal in this communication system can be identical with the equipment among the embodiment three with server in the IMS network.User terminal 11 is used for confirming to carry the IMS network of session, and according to this IMS network of network sign that registration process obtains, the session request is sent to the corresponding IMS network of said network identity; The IMS webserver 12 is used for session service is routed to the corresponding called user terminal of called user terminal sign that conversation request comprises.
Comprehensive above each embodiment, the embodiment of the invention five also provides a kind of user terminal, and is as shown in Figure 7, and said user terminal comprises ISIM module 21 and request sending module 22, and wherein: ISIM module 21 is used to preserve an IMPI and a plurality of home network domain name; Request sending module 22 is used for a plurality of home network domain name of comprising according to the ISIM module, initiates register requirement to the corresponding IMS network of each home network domain name respectively, comprises said IMPI in the said register requirement.ISIM module 21 can also be preserved the corresponding SQN sequence number of this home network domain name simultaneously, IMPU and root key, and request sending module 22 also simultaneously can be preserved IMPU in register requirement.
Said user terminal also further comprises network determination module 23, is used for the network identity that comprises according to conversation request, confirms to carry the IMS network of this session, and said conversation request is sent to definite said IMS network.
Through method, system and the user terminal that the embodiment of the invention provides, solve user terminal and utilized an ISIM to insert the problem of a plurality of IMS networks, make user terminal can enjoy the service that a plurality of IMS networks provide simultaneously; And, utilize the scheme of the embodiment of the invention to need not to change existing IMS network configuration, also need not to introduce new equipment, so use cost is lower, has higher utility to the IMS network.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (7)
1. a process registration in the IMS network is characterized in that, said method comprising the steps of:
User terminal is initiated register requirement to the corresponding IMS network of each home network domain name respectively according to the IMS private user identity IMPI and a plurality of home network domain name that comprise among the IMS service identification module ISIM, comprises said IMPI in the said register requirement;
Said IMPI in the network based register requirement that receives of IMS carries out authentication to user terminal, when authentication is passed through, user terminal is registered in network.
2. the method for claim 1 is characterized in that, and is said respectively to the corresponding IMS network initiation register requirement of each home network domain name, may further comprise the steps:
According to said a plurality of home network domain name, confirm the proxy call session control function module P-CSCF address of the IMS network that each home network domain name is corresponding respectively;
Register requirement is sent to the corresponding P-CSCF in P-CSCF address.
3. method as claimed in claim 2 is characterized in that, also comprises the P-CSCF address of the IMS network that at least one said home network domain name is corresponding among the said ISIM, then from said ISIM, confirms the P-CSCF address of the IMS network that home network domain name is corresponding.
4. the method for claim 1 is characterized in that, also comprises a plurality of IMS public user identity IMPU among the said ISIM, and before initiating register requirement to the corresponding IMS network of each home network domain name, said method also comprises:
According to the corresponding relation of predefined IMPU and home network domain name, confirm the IMPU that each home network domain name is corresponding;
The IMPU that confirms is placed the corresponding register requirement of IMS network, and said IMS network is the IMS network of the corresponding home network domain name of this IMPU;
When the IMS network passed through the authentification of message in the register requirement, said method also comprised:
IMPU in the said register requirement is registered in network, and the corresponding relation of the said IMPU of the said user terminal of preservation registration and registration.
5. the method for claim 1 is characterized in that, initiates register requirement to the corresponding IMS network of each home network domain name and comprises:
Confirm one or more IMS networks, said user terminal is not in the said IMS network's coverage area of confirming;
Said user terminal sends register requirement through the P-CSCF of the IMS network of current access to the IMS network of confirming.
6. the method that communicates after to the user terminal registration of a method of utilizing claim 1 is characterized in that the said method that communicates may further comprise the steps:
User terminal confirms to carry the IMS network of this session;
User terminal sends to the corresponding IMS network of said network identity according to this IMS network of network sign that registration process obtains with the session request;
Said IMS network is routed to session service the corresponding called user terminal of called user terminal sign that comprises in the conversation request.
7. a user terminal is characterized in that, said user terminal comprises:
The ISIM module is used to preserve an IMPI and a plurality of home network domain name;
Request sending module is used for a plurality of home network domain name of comprising according to the ISIM module, initiates register requirement to the corresponding IMS network of each home network domain name respectively, comprises said IMPI in the said register requirement.
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Families Citing this family (6)
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| US9769646B2 (en) * | 2015-02-26 | 2017-09-19 | T-Mobile Usa, Inc. | Realm translation in an IMS network |
| CN106941669B (en) * | 2017-02-28 | 2020-01-31 | 华为技术有限公司 | Wireless communication method and P-CSCF (proxy Call Session control function) equipment |
| US11297113B2 (en) * | 2017-12-21 | 2022-04-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and apparatus for registering an IMS subscriber using temporary identifiers |
| CN110661753B (en) * | 2018-06-30 | 2021-10-22 | 华为技术有限公司 | Network registration method, device and system |
| CN110881017B (en) * | 2018-09-05 | 2022-02-18 | 深圳富泰宏精密工业有限公司 | Communication service registration method, system, electronic device, authentication method and server |
| CN111935440B (en) * | 2020-08-13 | 2022-07-19 | 安康鸿天科技股份有限公司 | Full scene cooperation device and method based on IMS system real-time video communication |
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