CN101330717B - Method for simultaneously registering a plurality of contact addresses of user in IP multimedia subsystem - Google Patents
Method for simultaneously registering a plurality of contact addresses of user in IP multimedia subsystem Download PDFInfo
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- CN101330717B CN101330717B CN2007101094843A CN200710109484A CN101330717B CN 101330717 B CN101330717 B CN 101330717B CN 2007101094843 A CN2007101094843 A CN 2007101094843A CN 200710109484 A CN200710109484 A CN 200710109484A CN 101330717 B CN101330717 B CN 101330717B
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Abstract
The invention discloses a method for simultaneously registering a plurality of addresses of subscribers in an IP multimedia subsystem, which can simultaneously register a plurality of addresses of the subscribers to a core network by a subscriber terminal through an access network. The method comprises following steps: firstly, transmitting the registration request information carrying the contact address obtained from the access network and the multi-contact indication (MCI) parameter by the subscriber terminal to the core network through the access network; then, receiving the registration request information by the core network and registering the contact according to the multi-contact indication (MCI) parameter; and, if the MCI indicates subsequent registration, adding the registered contact to a contact list that has been registered by the terminal and keeping the registered contact by the core network. The method can allow one terminal to register a plurality of contacts simultaneously, which satisfies the mobility of session introduced by 3GPP R8 and is compatible to logout flow existing in the prior art.
Description
Technical field
The present invention relates to the IP Multimedia System in mobile communication technology field, relate in particular to a kind of implementation method that register simultaneously a plurality of contact addresses of a user in IP Multimedia System.
Background technology
Third generation partner plans 3GPP (3rd Generation Partner Project, the standardization body of WCDMA) and has introduced IP Multimedia System (IMS, IP MultimediaSubsystem) in the 3GPP R5 stage.In IP Multimedia System, SIP (SessionInitiation Protocol, session initiation protocol) has been adopted in user's registration, calling control.User registration course in the Session Initiation Protocol, be actually user's bottom address (generally being the IP address) is bound with SIP layer logical identifier, after this sip proxy server is received the request to a certain SIP logical identifier, can find this user's bottom physical address, thereby set up actual communicating to connect with this user.
Session Initiation Protocol itself allows a terminal to register a plurality of contact addresses simultaneously, but in communication networks such as IMS, roaming or terminal abnormal are restarted the IP address switchover that causes and will be caused re-registering new bottom IP address, for the purpose of reliable, version only allowed IP address of an endpoint registration before 3GPP R7 reached, and " sign-out " was carried out in the old address of having registered handle.So-called " sign-out " is meant that core net removes this contact address from self database, and notifies former terminal or other edge access device to nullify this contact address.
But along with 3GPP R8 has introduced the notion of session mobility, allow the registration simultaneously on the Access Network of number of different types of a terminal, this must cause core net need handle the situation of a plurality of contact addresses of terminal.The needs that following scene has carry out sign-out, and the needs that have keep registered contact address, if but follow existing standard, all can't correctly handle.
1) user can be registered to the IMS core net at a plurality of Access Networks such as GPRS (General Packet Radio Service, GPRS), WLAN (Wireless Local Area Network, WLAN (wireless local area network)) or fixed broadbands simultaneously simultaneously.
2) user roams into another access network from an access network, and IP address or port change, and needs core net to remove old invalid login contact address.Here the access network roaming of being sayed is switched and can be taken place between any two networks of different type, also can between the network of two same types, carry out, such as from WLAN to GPRS, also can switch to another GPRS (WLAN or fixed network broadband) network from a GPRS (WLAN or fixed network broadband).
3) user terminal is restarted unusually, initiates registration again, and IP address or port change, and needs core net to remove old invalid login contact address.
4) a plurality of SIP of operation use on the user terminal, and each is applied on the different ports and monitors the disposable a plurality of contact addresses of registration that need of starting up of terminal.
Because, utilize prior art to solve, thereby need a kind of a plurality of contact addresses while process registration that can realize the user, so that solve above-mentioned various scene coexistence problems for above various scene coexistence problems.
Summary of the invention
Technical problem to be solved by this invention is, a kind of implementation method that register simultaneously a plurality of contact addresses of a user in IP Multimedia System is provided, make a plurality of contact addresses of user to register simultaneously, both compatible 3GPP R7 and terminal in the past can realize the sign-out function that network is initiated again.
The invention provides user's process registration of a plurality of contact addresses while in a kind of IP Multimedia System, by Access Network a plurality of contact addresses of user are registered to core net simultaneously, comprise the steps: by user terminal
(1) user terminal sends login request message by Access Network to core net, carry in this login request message from contact address that Access Network obtains and multi-joint be address indication parameter MCI;
(2) core net receive login request message and according to described multi-joint be that address indication parameter MCI registers described contact address.
Further, described multi-joint be address indication parameter MCI be in the login request message one to indicate this registration at least be to register first or the parameter of subsequent registration.Described multi-joint be that address indication parameter MCI is the spreading parameter of an already-existing session initiation protocol head in the login request message, or the parameter of representing with an independent session initiation protocol extended head.
Further, step (2) further can be divided into:
Core net check described multi-joint be address indication parameter MCI, if this parameter MCI is designated as first registration, then note the contact address of this registration, and sign-out processing carried out in registered contact address by core net;
If it is subsequent registration that this parameter MCI is designated as, then the contact address of this registration is appended in the contact address tabulation that this terminal registered, and keep the contact address of having registered by core net.
Further, further comprise in the step (2):
If core net from login request message, be not checked through described multi-joint be address indication parameter MCI, then carry out sign-out flow process to registered contact address, the contact address that is received is registered as current contact address.
Further, to be designated as be subsequent registration as parameter MCI in the step (2), when an endpoint registration contact address quantity had arrived contact address upper limit quantity, core net was selected the contact address in the tabulation of sign-out contact address or is refused this register requirement according to local collocation strategy.Described contact address upper limit quantity is to adopt that home signature user server HSS is signatory to be limited the maximum quantity that each terminal allows to register simultaneously and determine.
Further, described Access Network is based on the network of IP agreement, comprises general packet radio service (GPRS) network or WLAN (wireless local area network) wlan network or fixed network broadband.
Further, described step (1) further comprises:
Before the contact address of this registration of record registration, by core net terminal is initiated authentication, when having only authentication to pass through, core net just can write down the contact address of this registration of terminal.
Further, the contact address log-on message of described terminal is kept at home signature user server HSS, downloads to this locality at step (1) user data that core net is relevant with this terminal before from HSS.
Use of the present invention multi-joint be the implementation method that register simultaneously the address, allow the registration simultaneously on the Access Network of number of different types of a terminal, can realize that a terminal registers a plurality of contact addresses simultaneously.Satisfy the session mobility that 3GPP R8 introduces, and can compatiblely show existing sign-out flow process in the technology.
Description of drawings
Fig. 1 is a concrete networking structure block diagram realizing described method in the embodiment of the invention;
Fig. 2 realizes in the embodiment of the invention that multi-joint is the idiographic flow interaction figure of address coexistence;
Fig. 3 is an idiographic flow interaction figure of realizing sign-out former contact address in the embodiment of the invention.
Embodiment
Below in conjunction with drawings and the specific embodiments technical scheme of the present invention is described in further detail.
Follow the convention of 3GPP among the present invention, come IMS terminal of unique identification with a private user identity.Realize principle main points of the present invention be following some:
(1) increase by one multi-joint be address indication (Multi-Contact Indication) parameter, hereinafter to be referred as MCI, this parameter MCI bring core net by the IMS terminal, and it can be the spreading parameter of an existing SIP head, also can be to represent with an independent SIP extended head.
When (2) the IMS terminal is registered at every turn according to self whether needs register a plurality of contact addresses or whether this registration is first contact address, indicate and wish that core net appends to the contact address of this registration in the contact address tabulation of having registered, and still covers existing contact address and in login request message, carry different MCI parameter values.
(3) core net (S-CSCF:Serving CSCF, serving CSCF) receive the register requirement of terminal after, check the MCI parameter, if the MCI parameter does not exist, then think not adopt the terminal of the technology of the present invention, directly sign-out processing is carried out in old contact address, this point is in order to realize the compatible processing of existing network termination.Otherwise, be for further processing.
(4) S-CSCF of core net investigates the MCI parameter value again, if its indicated value (for example can be YES or NO) is registration first, then S-CSCF notes the contact address of this registration, and sign-out processing is carried out in existing contact address; If MCI indication is a subsequent registration, then this registered address is appended in the contact address tabulation that this terminal registered, and keep the contact address of having registered.
Terminal, core net can utilize the present invention to realize that a terminal registers a plurality of contact addresses simultaneously, and existing sign-out flow process in can compatible existing technology.
Further under technique scheme, if allow a plurality of contact addresses of endpoint registration not limit again, just existing endpoint registration infinitely multi-joint is the possibility of address, overflows thereby cause with the tabulation of core net contact address, causes denial of service.But it is to determine that by the business that this client contracts can not impose uniformity without examining individual cases simply limits that a client allows to register several contact addresses actual actually.Be head it off, the present invention adopts signatory each terminal that limits of HSS to allow the maximum quantity registered simultaneously, quantitatively prescribe a time limit when an endpoint registration contact address quantity has arrived to contract, new registered address system can select sign-out old contact address or refuse new register requirement according to local collocation strategy.
4 main points of foregoing invention principle and the quantity that signatory decision unique user is registered the contact address simultaneously are the most outstanding innovation main points of the present invention.
As shown in Figure 1, shown realize the IMS user terminal multi-joint be the networking schematic diagram that register simultaneously the address.Wherein:
101 is IMS UE, that is the terminal of IP Multimedia System IMS, and it possesses the ability that inserts IMS from a plurality of access networks;
102 is the GPRS access network, and UE can insert IMS by it;
103 is the WLAN access network, and UE also can insert IMS by it;
104 is CSCF (Call Session Control Function, CSCF), is used to handle IMS user's registration, the route and the session control of carrying out the IMS calling;
105 is HSS (Home Subscriber Server, home signature user server), this nodal function is for depositing user contracting data, it is named as UPSF (User ProfileServer Function in other normal structure, the files on each of customers server capability), but the main functionality basically identical, for simplicity, this paper claims HSS without exception.
Enumerated GPRS and WLAN in this Fig. 1 example as access network, but be not limited to use this two kinds of access networks, such as the access network that can use any operation IP agreements such as fixed broadband.
It is the address coexistence embodiment of address registration that Fig. 2 shows a kind of IMS of realization multi-joint.
Step 201, the IMS terminal has been registered contact address C1 in GPRS network, and that this terminal is the relevant user data of CSCF downloads to this locality from HSS.
Step 202, the IMS terminal detects the WLAN signal, obtains contact address C2 by wlan network.The IMS terminal is initiated registration for the second time at wlan network, sends login request message to CSCF, and the contact address is C2, and wherein the MCI parameter is designated as subsequent registration.Present embodiment MCI=Yes represents subsequent registration.
Step 203, CSCF checks the contact address after receiving login request message, learn it is new contact address, then check the MCI parameter, its value is wished this contact address and the coexistence of original contact address for Yes represents terminal, last CSCF checks that existing contact address quantity adds 1 (this registered address) and whether surpasses the signatory contact address sum upper limit, if do not surpass, then contact address C2 is recorded in the contact address data storehouse of oneself.
Step 204, CSCF returns success response to UE, and flow process is finished.
Further, also can initiate authentication by CSCF to terminal UE in step 203 in the present embodiment, when having only authentication to pass through, CSCF just can write down the new contact address of UE registration.This does not have materially affect to core process of the present invention.
It is the sign-out scene embodiment of address registration that Fig. 3 shows a kind of IMS of realization multi-joint.
Step 301, IMS terminal are at GPRS network registration contact address C1, and that this terminal is the relevant user data of CSCF downloads to this locality from HSS.
Step 302, IMS UE detects the WLAN signal behind the GPRS dropout, obtain contact address C2 by wlan network.The IMS terminal is initiated registration for the second time at WLAN, and the contact address is C2, and wherein the MCI parameter is designated as registration first.Present embodiment MCI=No represents to register first.
Step 303, CSCF checks the contact address after receiving register requirement, learns it is new contact address, then check the MCI parameter, learn that terminal wishes that this contact address is registered address first, should cover old address, then C2 is recorded in the contact address data storehouse of oneself, nullify contact address C1.
Step 304, CSCF returns success response to UE
Step 305, CSCF initiates sign-out process:
1) by the original contact address C1 of GPRS network notice UE deregistration, can receive this notice because the GPRS dropout of UE can not receive this notice under the situation that signal is not lost this moment;
2) notify the C1 contact address of this UE of other related network elements to nullify, this is operated not shown in the present embodiment figure.
Step 304 is to exchange with 305 order in the foregoing description.
An embodiment compatible mutually with prior art.
Step 401, IMS terminal are at GPRS network registration contact address C1, and that this terminal is the relevant user data of CSCF downloads to this locality from HSS.
Step 402, IMS UE detects the WLAN signal behind the GPRS dropout, obtain contact address C2 by wlan network.The IMS terminal is initiated registration for the second time at WLAN, and the contact address is C2, wherein, does not have the MCI parameter in the login request message.
Step 403 finds that the MCI parameter does not exist, and then thinks not adopt the terminal of the technology of the present invention if CSCF checks, directly sign-out processing is carried out in old contact address, at this moment, if no MCI sign, then current address of succeeding in registration is one address, back, and with last address cancel.This point is in order to realize the compatible processing of existing network termination.
Claims (10)
1. a plurality of contact addresses of user process registration simultaneously in the IP Multimedia System simultaneously is registered to core net by Access Network with a plurality of contact addresses of user by user terminal, it is characterized in that, comprises the steps:
(1) user terminal sends login request message by Access Network to core net, carry in this login request message from contact address that Access Network obtains and multi-joint be address indication parameter MCI;
(2) core net receive login request message and according to described multi-joint be that address indication parameter MCI registers described contact address.
2. the method for claim 1 is characterized in that:
Described multi-joint be address indication parameter MCI be in the login request message one to indicate this registration at least be to register first or the parameter of subsequent registration.
3. method as claimed in claim 2 is characterized in that, described multi-joint be that address indication parameter MCI is the spreading parameter of an already-existing session initiation protocol head in the login request message, or the parameter of representing with an independent session initiation protocol extended head.
4. method as claimed in claim 2 is characterized in that, step (2) further can be divided into:
Core net check described multi-joint be address indication parameter MCI, if this parameter MCI is designated as first registration, then note the contact address of this registration, and sign-out processing carried out in registered contact address by core net;
If it is subsequent registration that this parameter MCI is designated as, then the contact address of this registration is appended in the contact address tabulation that this terminal registered, and keep the contact address of having registered by core net.
5. method as claimed in claim 4 is characterized in that, step further comprises in (2):
If core net from login request message, be not checked through described multi-joint be address indication parameter MCI, then carry out sign-out flow process to registered contact address, the contact address that is received is registered as current contact address.
6. method as claimed in claim 4, it is characterized in that, to be designated as be subsequent registration as parameter MCI in the step (2), when an endpoint registration contact address quantity had arrived contact address upper limit quantity, core net was selected the contact address in the tabulation of sign-out contact address or is refused this register requirement according to local collocation strategy.
7. method as claimed in claim 6 is characterized in that, described contact address upper limit quantity is to adopt that home signature user server HSS is signatory to be limited the maximum quantity that each terminal allows to register simultaneously and determine.
8. the method for claim 1 is characterized in that, described Access Network is based on the network of IP agreement, comprises general packet radio service (GPRS) network or WLAN (wireless local area network) wlan network or fixed network broadband.
9. the method for claim 1 is characterized in that, described step (1) further comprises:
Before the contact address of this registration of record, by core net terminal is initiated authentication, when having only authentication to pass through, core net just can write down the contact address of this registration of terminal.
10. the method for claim 1 is characterized in that, the contact address log-on message of described terminal is kept at home signature user server HSS, downloads to this locality at step (1) user data that core net is relevant with this terminal before from HSS.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101094843A CN101330717B (en) | 2007-06-26 | 2007-06-26 | Method for simultaneously registering a plurality of contact addresses of user in IP multimedia subsystem |
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| CN2007101094843A CN101330717B (en) | 2007-06-26 | 2007-06-26 | Method for simultaneously registering a plurality of contact addresses of user in IP multimedia subsystem |
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| CN101330717A CN101330717A (en) | 2008-12-24 |
| CN101330717B true CN101330717B (en) | 2011-05-25 |
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| CN101841801B (en) * | 2009-03-16 | 2012-12-26 | 中国移动通信集团公司 | Methods and systems for registration and communication in IMS network and user terminal |
| WO2015085474A1 (en) * | 2013-12-10 | 2015-06-18 | 华为终端有限公司 | Registration method, relevant node, and registration system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1777322A (en) * | 2004-11-15 | 2006-05-24 | 华为技术有限公司 | Method for treating user of updating IP address at network side |
| CN1838610A (en) * | 2005-03-24 | 2006-09-27 | 华为技术有限公司 | Method for realizing user registration in internet protocol multimedia subsystem |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1777322A (en) * | 2004-11-15 | 2006-05-24 | 华为技术有限公司 | Method for treating user of updating IP address at network side |
| CN1838610A (en) * | 2005-03-24 | 2006-09-27 | 华为技术有限公司 | Method for realizing user registration in internet protocol multimedia subsystem |
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