KR100802657B1 - Apparatus and method of hss information management in internet protocol multimedia core network subsystem - Google Patents

Abstract

The method and apparatus for managing HSS information of an IMS according to the present invention include an SLF server managing information of each HSS in an IMS in which a plurality of HSSs are constructed, and includes only the number of terminal user information which can be registered or less for each HSS. When registering the subscriber information according to the new user ID information connected to the IMS, the user ID information is registered first with the HSS having the minimum number of registered user ID information. A terminal connected to the IMS by preventing the SLF server managing the information of each HSS from the IMS is configured with the terminal user information including the same upper level category with respect to the user ID information registered in each HSS. The subscriber information according to the user ID information can be effectively managed.

Description

IMS information management method and device thereof {APPARATUS AND METHOD OF HSS INFORMATION MANAGEMENT IN INTERNET PROTOCOL MULTIMEDIA CORE NETWORK SUBSYSTEM}

1 is a block diagram illustrating a network connection configuration of a general IMS.

2 is an internal block diagram illustrating a general IMS.

3 is an internal block diagram illustrating a configuration of an IMS according to an embodiment of the present invention.

4 is an internal block diagram illustrating a configuration of an IMS according to another embodiment of the present invention.

5 is a diagram showing the configuration of user ID information of the IMS according to an embodiment of the present invention.

6 is a diagram showing the configuration of the HSS management table of the SLF server according to an embodiment of the present invention.

7A is a diagram illustrating an information management structure of an HSS of an HSS management table according to an embodiment of the present invention.

7B is a diagram illustrating an IMS subscription management structure of an HSS management table according to an embodiment of the present invention.

7C is a diagram illustrating a structure of managing Private User Identity information of an HSS management table according to an embodiment of the present invention.

7D is a diagram illustrating a structure of managing Public User Identity information of an HSS management table according to an embodiment of the present invention.

8 is a block diagram of an SLF server according to an embodiment of the present invention.

9 is a flowchart illustrating a method of registering new user ID information of an SLF server according to an embodiment of the present invention.

10 is a flowchart illustrating a method of registering new user ID information of an SLF server according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

100: terminal 200: IMS (IP Multimedia Core Network Subsystem)

210: Proxy-Call Session Control Function (P-CSCF) server

220: Interrogating- Call Session Control Function (I-CSCF) server

230: Serving-Call Session Control Function (S-CSCF) server

240: Subscription Locator Function (SLF) server

250-1 ~ 250-n: HSS (Home Subscriber Server)

300: CCC (Customer Care Center)

The present invention relates to a method and apparatus for managing HSS information of an IMS.

The European-led 3GPP and the North American-led 3GPP, which proceeds with the IMT-2000 standard, proposed an ALL-IP network that replaces the infrastructure of the mobile communication network with IP.

The ALL-IP network is proposed to satisfy various service needs of an increasing number of Internet users with a wireless access service. The ALL-IP network uses a mobile communication network structure and a protocol based on IP, and transmits and transmits data and signaling on an IP basis. It separates bearer, control and service functions and provides multimedia communication in real time.

The all-IP network can provide services by interworking with the internet network regardless of access methods such as landlines, mobile phones, cables, and LANs by using IP, and provides synergy effects and services due to IP expansion. The cost reduction can be achieved.

In addition, the ALL-IP network provides a solution suitable for integrated services, a comprehensive multimedia service that includes voice, data, and real-time video services simultaneously. Cost savings can be achieved.

In other words, the ALL-IP network is an IP-based integrated network for supporting wired / wireless voice services, wired / wireless internet services, and wired / wireless multimedia services.

IP Multimedia Core Network Subsystem (IMS) is defined to provide various services to subscribers based on the ALL-IP network.

In 3GPP, which defines GSM and WCDMA, etc., it is defined as IMS, and in 3GPP2, which defines CDMA, etc., processing similar to IMS is defined as MMD (Multimedia Domain).

In the following description, the IMS 100 is described as an example, but it can be seen that MMD can be applied in the same manner.

1 is a block diagram illustrating a network connection configuration of a general IMS.

As shown in FIG. 1, the network of the IMS includes a terminal 10 through which a subscriber can receive an integrated service, a base station system 20 wirelessly connected to the terminal 10, and a base station system 20. It includes a connected PDSN 30, a PDSN 30 and an IMS 40 connected to an IP network.

The terminal 10 provides a subscriber with an integrated service including a wired / wireless voice service, a wired / wireless internet service, and a wired / wireless multimedia service.

That is, the terminal 10 receives a signal transmitted from the base station system 20 in a serving cell of the base station system 20, and wirelessly receives a signal according to voice or data input from a subscriber. ).

In addition, the base station system 20 transmits a signal received from the terminal 10 included in the corresponding service cell to the PDSN 30 connected to the wired network, and wirelessly corresponds to the signal received from each PDSN 30. It transmits to the terminal 10 included in the service cell.

That is, the base station system 20 allocates or releases a radio channel for the terminal 10 included in the serving cell, and handles a handoff to guarantee the mobility of the terminal 10.

In addition, the base station system 20 converts the analog signal received from the terminal 10 included in the service cell into a digital signal that can be transmitted to the E1 / T1 level line, and transmits the signal to the PDSN 30 connected to the wired network. The digital signal received from the PDSN 30 is converted into an analog signal that can be transmitted wirelessly and transmitted to the terminal 10.

In addition, the PDSN 30 converts a signal received from the base station system 20 into an IP packet and transmits the signal to the IMS 40, and converts an IP packet transmitted from the IMS 40 into a signal and transmits the signal to the PDSN 30. do.

In addition, a network including the terminal 10, the base station system 20, and the PDSN 30 is called an access network, and the terminal 10 transmits a message according to SIP of VoIP through the access network to the IMS 40. To send).

That is, the terminal 10 transmits a signal according to a SIP type message to the base station system 20 at the request of the subscriber, and the base station system 20 transmits a signal received wirelessly to the PDSN 30.

The PDSN 30 converts the signal received from the base station system 20 into an IP packet according to the SIP type message and transmits the signal to the IMS 40.

The IMS 40 provides the integrated service to the terminal 10 according to the received IP packet.

2 is an internal block diagram illustrating a general IMS.

As shown in FIG. 2, the IMS 40 includes a plurality of Call Session Control Function servers, that is, a Proxy-Call Session Control Function (P-CSCF) server 41 and an Interrogating-Call Session Control Function I-CSCF. Server 42, a Serving-Call Session Control Function (S-CSCF) server 43, and a Home Subscriber Server (HSS) 44.

The P-CSCF server 41 transmits a SIP format message received from the terminal 10 to the I-CSCF server 42.

The I-CSCF server 42 obtains a subscriber profile of the corresponding terminal 10 using the public user ID information of the terminal 10 which has transmitted the message.

In addition, the I-CSCF server 42 controls the call of the terminal 10 according to the obtained subscriber information and transmits a message to the S-CSCF server 43 providing the integrated service.

The S-CSCF server 43 provides the integrated service according to the received message to the terminal 10. That is, the S-CSCF server 43 sets up a call between the called terminal 10 and the calling terminal 10 according to the received message, or provides an integrated service such as a voice message service.

Then, the HSS 44 manages subscriber information according to each terminal 10 accessing the IMS 40, and if there is a request for subscriber information according to each terminal 10 from the I-CSCF server 42, The subscriber information according to the public user ID information of the terminal 10 is provided.

However, when the number of subscribers accessing the IMS 40 increases, the number of HSSs 44 managing subscriber information also increases.

Accordingly, when the number of HSSs 44 increases, the IMS additionally configures a subscription locator function (SLF) server capable of confirming information on each HSS.

That is, the SLF server manages the information of the HSS 44 managing the subscriber information according to the user ID information that transmitted the message, and the information of the HSS 44 according to the user ID information is requested from the I-CSCF server 42. If so, information of the corresponding HSS 44 is provided.

On the other hand, in the current 3GPP standard, as described above, the SLF server simply manages the information of each HSS 44, and the information of the HSS 44 according to the user ID information requested from the I-CSCF 42 is referred to as I-CSCF. Only the definition provided by (42) is described, but the specific implementation of the SLF server is not defined.

Accordingly, the present invention is to solve the above problems according to the prior art, an object of the present invention to manage the information of each HSS and the user ID information registered in each HSS in the IMS is a plurality of HSS is built specifically The present invention provides an HMS information management method and apparatus therefor.

HMS information management system of the IMS according to an aspect of the present invention for achieving the above object, a plurality of HSS for managing subscriber information according to a plurality of user ID information connected to the IMS; A customer care center for transmitting a registration request message requesting allocation of the registerable HSS according to the new user ID information when registering subscriber information according to the new user ID information; Storing and managing the plurality of HSS information and user ID information registered corresponding to each of the HSS, and when a registration request message is received from the customer care center, a category of a higher level identical to the new user ID information requested for registration and And a SLF server (Subscription Locator Function Server) for retrieving information of the HSS including the minimum number of user ID information and registering subscriber information according to the new user ID information with the retrieved HSS.

The SLF server may be configured to manage the HSS to include user ID information of a predetermined number or less.

The user ID information includes sub-hierarchical structure that is configured in the order of IMS Subscription, Private User Identity, and Public User Identity information from the upper category to the lower category.

When the registration request message is received, the SLF server searches for the information of the HSS including the category of the same higher stage as the new user ID information, and when the information of the HSS including the category of the same higher stage exists. Register the subscriber information according to the new user ID information in the HSS, and if the information of the HSS does not exist, search for the information of the HSS including the minimum number of user ID information, and search for the new HSS. The subscriber information according to the user ID information is registered.

The SLF server registers subscriber information according to the new user ID information to the searched HSS, and transmits a result message including the searched HSS information and the registration information to the customer care center and manages the plurality of HSSs. It is characterized by updating the information of the searched HSS among the information.

The customer management center may include information on a specific HSS requesting registration of subscriber information according to the new user ID information in the registration request message and transmit the information to the SLF server.

When the registration request message is received, the SLF server searches for information of an HSS including a category higher than that of the new user ID information, and if it is determined that the searched HSS is the same as the specific HSS, The subscriber information according to the new user ID information is registered in a specific HSS, and if it is determined that the two HSSs are not the same, a registration rejection message for rejecting the registration is transmitted to the customer care center.

When the registration request message is received, the SLF server searches for information of an HSS including a category higher than that of the new user ID information. If the information of the HSS is not found, the SLF server includes the specific HSS. When the terminal user ID information is grasped and the identified specific HSS includes user ID information equal to or less than a preset number, the subscriber information according to the new user ID information may be registered in the specific HSS.

The SLF server may transmit a registration rejection message to the customer care center to reject the registration if the specific HSS includes more than a predetermined number of user ID information.

The SLF server may include: an HSS information manager configured to store an HSS management table including the user ID information stored corresponding to each HSS and a preset number of registerable user ID information; The number of the user ID information registered in each HSS and the upper end category are identified, and the new user ID information is registered at the highest priority in the HSS having the minimum number of registered user ID information, and the registration is possible for each HSS. An HSS policy manager configured to perform a policy for restricting registration of user ID information including a plurality of user ID information and an upper level category that is not the same as previously registered user ID information; A control unit which, upon receiving a registration request message from the customer management center, retrieves information of the HSS to which the registered new user ID information is registered and provides the information to the customer management center through the HSS information management unit and the HSS policy management unit; It includes a call processing unit for grasping and providing the terminal user ID information requested call.

In addition, the HSS information management system of the IMS according to another aspect of the present invention, a plurality of HSS for managing subscriber information according to a plurality of user ID information connected to the IMS; A customer management center for requesting registration of subscriber information according to the new user ID information directly to the arbitrary HSS if the subscriber information according to any new user ID information is to be registered; A registration request message for storing and managing the plurality of HSS information and user ID information registered corresponding to each HSS, and requesting registration of subscriber information according to the new user ID information requested by the customer management center from the HSS; And receiving the HSS, determining whether to permit the requested registration, and registering the subscriber information according to the new user ID information to the HSS according to the determination result.

When the registration request message is received, the SLF server searches for information of an HSS including a category higher than that of the new user ID information and determines that the searched HSS is identical to the registration requested HSS. The subscriber information according to the new user ID information is registered in the HSS according to the number of new user ID information included in the registration requested HSS.

The SLF server registers subscriber information according to the new user ID information to the HSS if the new user ID information included in the registration requested HSS is less than or equal to a preset number, and the set number or more can be registered. If so, it is characterized in that the registration rejection message for rejecting the registration to the HSS.

The SLF server, when it is determined that the searched HSS and the registration requested HSS is not the same, and transmits a registration rejection message to the HSS to reject the registration.

When the information on the HSS including the category of the same upper end is not retrieved, the SLF server checks the number of terminal user ID information included in the registration-requested HSS, and the determined new user ID information is pre-recorded. If the number is less than the set number, the subscriber information according to the new user ID information is registered in the HSS. If the number is more than the preset number, the registration rejection message for rejecting registration is transmitted to the HSS.

When the SLF server registers subscriber information according to the new user ID information with the registration requested HSS, the SLF server transmits a result message including the information according to the registration to the HSS to be delivered to the customer care center. The information on the registration-requested HSS is updated among a plurality of managed HSS information.

In addition, the HSS information management apparatus of the IMS according to another aspect of the present invention, an HSS management table including user ID information stored corresponding to each HSS of a plurality of HSS configured and a pre-registerable user for each of the HSS An HSS information manager which stores a number of ID information; The number of the user ID information registered in each HSS and the upper end category are identified, and the new user ID information is registered at the highest priority in the HSS having the minimum number of registered user ID information, and the registration is possible for each HSS. An HSS policy manager configured to perform a policy for restricting registration of user ID information including a plurality of user ID information and an upper level category that is not the same as previously registered user ID information; When a registration request message requesting registration allocation of subscriber information according to any new user ID information is received from the customer care center and the HSS, the HSS to which the new user ID information is to be registered through the HSS information management unit and the HSS policy management unit. A control unit which grasps information of the user and registers subscriber information according to the new user ID information to the identified HSS; It includes a call processing unit for grasping and providing the terminal user ID information requested call.

On the other hand, HSS information management method of the IMS according to another aspect of the present invention for achieving the above object, the HSS information management method of the IMS, the user is registered SLF server corresponding to a plurality of HSS information and each of the HSS Storing and managing ID information; Sending, by the customer care center, a registration request message to the SLF server requesting registration allocation of subscriber information according to any new user ID information; The SLF server searches for an HSS including a category and a minimum number of user ID information of the same level as the new user ID information requested for registration according to the received registration request message, and obtains information on the registerable HSS. step; Registering, by the SLF server, subscriber information according to the new user ID information with the obtained HSS.

The managing of the user ID information registered corresponding to each HSS by the SLF server may include managing each HSS to include user ID information of a predetermined number or less.

When the registration request message is received, the SLF server acquires information of the registerable HSS, and if the registration request message is received, search for the information of the HSS including the same upper level category as the new user ID information, and the searched HSS. Acquiring with the registerable HSS; Searching for information of the HSS including the minimum number of user ID information, and acquiring the searched HSS as the registerable HSS when the information of the HSS including the same upper level category does not exist. do.

The HSS information management system of the IMS, after the registration of the SLF server, transmits the result message including the obtained HSS information and the registration information to the customer care center, and the acquisition from the plurality of HSS information managed Updating the information of the HSS.

The HSS information management system of the IMS, the customer management center, sending a registration request message containing information of a specific HSS requesting registration of subscriber information according to the new user ID information to the SLF server; When the SLF server receives the registration request message, searching for information of an HSS including a category higher than that of the new user ID information, and comparing the searched HSS with the specific HSS; When the SLF server determines that the two HSSs are the same as the result of the comparison, the SLF server registers subscriber information according to the new user ID information in the specific HSS, and rejects the registration when it is determined that the two HSSs are not the same. And sending a registration rejection message to the customer care center.

The HSS information management system of the IMS, when the SLF server is not retrieved the information of the HSS including the upper level category and the same as the new user ID information, the number of terminal user ID information included in the specific HSS Doing; If the SLF server determines that the number of terminal user ID information included in the specific HSS is less than or equal to a preset registerable number, the SLF server registers subscriber information according to the new user ID information in the specific HSS and registers the preset registration. If it is determined that the number is possible, the method may further include transmitting a registration rejection message to the customer care center.

In addition, the method for managing HSS information of an IMS according to another aspect of the present invention includes the steps of: storing and managing, by an SLF server, a plurality of HSSs and user ID information registered corresponding to the HSS information; Selecting, by the customer care center, one HSS to register subscriber information according to new user ID information among the plurality of HSSs, and transmitting the registration message to the selected HSS; Sending, by the HSS, a registration request message to the SLF server to request registration allocation of subscriber information according to the new user ID information according to the received registration message; Determining, by the SLF server, the HSS requested for registration according to the reception of the registration request message and allowing the registration of the HSS; Registering the subscriber information according to the new user ID information with the HSS when the SLF server determines that the registration is allowed, and transmitting a registration rejection message to the HSS when it is determined that the registration is rejected. do.

The determining of whether to allow the registration of the HSS by the SLF server may include searching for information of the HSS including the same upper category as the new user ID information according to the registration request message. Comparing an HSS with the registration requested HSS; If it is determined that the two HSSs are the same, determining the number of new user ID information included in the registered HSS; And if the identified new user ID information is equal to or less than a predetermined number of registrations, permitting the registration to the HSS, and if the new user ID information is equal to or more than the predetermined number of registrations, rejecting registration.

The determining of whether the SLF server permits the registration of the HSS further includes, if it is determined that the searched HSS and the registration requested HSS are not the same, rejecting the registration of the HSS.

The SLF server may determine whether to permit the registration of the HSS, the number of terminal user ID information included in the registration request HSS, if the information of the HSS including the category of the same upper end is not retrieved Grasping; If the identified new user ID information is less than or equal to a predetermined number of registrations, permitting the registration to the HSS; and if more than the predetermined number of registrations, the registration is further rejected.

The determining of whether the SLF server allows the registration of the HSS, the SLF server after the registration, transmits a result message including the information according to the registration to the HSS to be delivered to the customer care center; And updating the information on the registration requested HSS among the plurality of managed HSS information.

In addition, the HSS information management method of the SLF server in the IMS according to another aspect of the present invention, the step of storing and managing the user ID information registered in each of the HSS corresponding to a plurality of HSS information; If a registration request message is received, determining whether the registration request message has been received from a customer care center or the HSS; If the registration request message is received from the customer care center to request registration allocation of subscriber information according to any new user ID information, the same upper level category and the minimum number of users as the new user ID information. Retrieving the HSS including ID information and registering subscriber information according to the new user ID information with the retrieved HSS; If the registration request message is received from the HSS and a subscriber request message for requesting subscriber information according to any new user ID information to be registered in the HSS, the HSS is identified and the HSS is equal to the new user ID information. If it is determined that the upper end category and the user ID information of a predetermined number or less can be included, registering the subscriber information according to the new user ID information to the HSS.

The HLF information management method of the SLF server, if the registration request message is received from the customer care center, the registration request message containing the information of the specific HSS requesting registration allocation of subscriber information according to any new user ID information Searching for information of the HSS including the same upper category as the new user ID information; When it is determined that the two HSSs are the same by comparing the searched HSS with the specific HSS, the subscriber information according to the new user ID information is registered in the specific HSS, and when it is determined that the two HSSs are not the same, And sending a registration rejection message to the customer care center to reject registration.

Hereinafter, a method and an apparatus for managing HSS information of an IMS according to the present invention will be described in detail with reference to the accompanying drawings.

3 is an internal block diagram illustrating a configuration of an IMS according to an embodiment of the present invention.

As shown in FIG. 3, the Internet Protocol Multimedia Subsystem (IMS) 200 according to the present invention includes a Proxy CSCF (210) server and an Interrogating CSCF (I-CSCF) server (P-CSCF). 220) and a Call Session Call Function (CSCF), a Subscription Locator Function (SLF) server 240, and a plurality of Home Subscriber Servers (250-1 ~) having a configuration of a Serving CSCF (S-CSCF) server 230. 250-n).

 The CSCF server of the IMS 200 performs a session control function. Specifically, the CSCF server is responsible for setting up a PDP (Packet Data Protocol) context for IMS related signaling, registration, IMS session, and the like.

In particular, the P-CSCF server 210 operates as the first access point of the terminal 100 in the IMS 200, receives a SIP type message transmitted from the terminal 100, and sends the received message to the I-CSCF. Send to server 220. Here, the SIP type message includes user ID information.

The I-CSCF server 220 operates as an access point between the SLF server 240 and each HSS 250. When a SIP type message is received from the P-CSCF server 210, the I-CSCF server 220 manages user ID information. The information of 250 is obtained from the SLF server 240, and the subscriber information according to the user ID information is provided from the HSS 250 by accessing the obtained HSS 250.

The I-CSCF server 220 transmits a SIP-type message to the S-CSCF server 230 that controls the call of the terminal 100 according to the subscriber information according to the user ID information provided from the HSS 250. do.

The S-CSCF server 230 performs a function of processing a session state, and when a SIP type message received from the I-CSCF server 220 is received, the S-CSCF server 230 controls a call of the terminal 100 according to the received message. To provide integrated services.

The SLF server 240 manages a plurality of HSS 250 information configured in the IMS 200, and manages HSS 250 information and each user ID information capable of registering subscriber information according to new user ID information. Information may be provided.

In more detail, the SLF server 240 stores information of the HSS 250 that manages subscriber information according to user ID information for each terminal, and stores and stores user ID information registered corresponding to each HSS 250. do.

Here, the SLF server 240 may use IP address information or nickname (Nick Name) for each HSS 250 as the information of the HSS 250 to store.

In addition, in managing the information of the HSS 250, the SLF server 240 registers each HSS 250 in order to prevent the centralized registration of subscriber information according to the user ID information with one HSS 250. By setting the number of possible user ID information in advance, it restricts the registration of the user ID information of the predetermined number or more registered in each HSS (250). In addition, the SLF server 240 has user ID information including the same IMS subscription or private user identity information as one HSS for user ID information having a sub-layer of IMS subscription, private user identity information, and public user identity information. It is possible to register at 250).

As such, the SLF server 240 from the Customer Care Center (hereinafter referred to as 'CCC') 300 that manages customer information HSS 250 for subscriber information registration according to any new user ID information When requested to allocate, the information of the registerable HSS 250 can be grasped and provided to the CCC (300).

Here, the HSS 250 provides information of the HSS 250 that can be registered, so that the information of the HSS 250 having the minimum number of registered user ID information may be retrieved from the HSS management table and provided. 250) The new user ID information requested to be allocated may be provided by searching for information of the HSS 250 including the same IMS subscription or private user identity information.

In addition, when the SLF server 240 receives the information of the HSS 250 managing arbitrary user ID information from the I-CSCF server 220, the SLF server 240 retrieves the information of the requested HSS 250, the searched HSS 250 Information of the may be provided to the I-CSCF server 220.

The HSS 250 corresponds to a master database of the user of the terminal 100 and manages subscriber information according to the user ID information. One or several HSS 250 may exist according to the number of users of the terminal 100 subscribed to one same IMS 200 network and the configuration capability of the network.

Meanwhile, the CCC 300 is a server managing customer information, and may allow subscriber information to be registered in the HSS 250 through the SLF server 240 or new subscriber information, that is, new user ID information.

When the CCC transmits a registration request message to the SLF server for registration of subscriber information according to the new user ID information, the CCC includes information of a specific HSS in the registration request message according to the selection of the CCC administrator, and newly sends the information to the specific HSS. The subscriber information according to the user ID information may be requested to be registered.

5 is a diagram showing the configuration of user ID information of the IMS according to an embodiment of the present invention.

As shown in FIG. 5, the IMS 200 configures a plurality of private user identity information under one IMS subscription, and configures a plurality of public user ID information under each private user identity information.

That is, the IMS 200 establishes a plurality of private networks centered on one IMS network, establishes a plurality of general IMS terminal users around each constructed private network, and sequentially obtains a private user identity from one IMS subscription. Information, public user identity information can be configured.

Accordingly, the SLF server 240 may allow each HSS 250 stored in the HSS management table to be stored in a sub-hierarchical structure that can sequentially search from the upper level category to the lower level category for the user ID information. For example, the same IMS subscription or private user identity information should be included.

6 is a diagram illustrating an HSS management table configuration of an SLF server according to an embodiment of the present invention.

As shown in FIG. 6, in configuring the HSS management table, the SLF server 240 allows the user ID information included in each HSS 250 to be configured with the same IMS Subscription or Private User Identity information. It can be configured as a sub-hierarchical structure that can be searched sequentially from the category of the upper stage to the category of the lower stage.

In addition, the SLF server 240 has an HSS management table configured in a sub-hierarchical structure, and each of the IMS Subscription, Private User Identity information, and Public User Identity information of the user ID information included in each HSS 250 has an independent configuration. When the information of the HSS 250 managing any user ID information is requested, the information on the requested HSS 250 may be immediately retrieved.

Next, the structure of the HSS management table having such a configuration will be described.

7A is a diagram illustrating an information management structure of an HSS of an HSS management table according to an embodiment of the present invention.

The HSS management table may have a management structure as shown in FIG. 7A with respect to information of each HSS 250 to be managed.

In FIG. 7A, <a> represents address information of the HSS 250 to be stored, and <b> represents a nickname of the HSS 250 to be stored.

<c> represents the number of IMS subscriptions registered in the HSS 250 of <a> or <b>, <d> is the number of private user identity information registered in the HSS 250, and <e> is Public User Identity This indicates the number of information.

In addition, <f> represents the number of pre-registerable Public User Identity information.

7B is a diagram illustrating an IMS subscription management structure of an HSS management table according to an embodiment of the present invention.

The HSS management table may have a management structure as shown in FIG. 7B for information on each IMS subscription to be managed.

<a> shown in FIG. 7B indicates the HSS 250 to which an IMS subscription is assigned. <B> represents the name of the corresponding IMS subscription.

7C is a diagram illustrating a structure of managing Private User Identity information of an HSS management table according to an embodiment of the present invention.

The HSS management table may have a management structure as shown in FIG. 7C for each Private User Identity information managed.

In FIG. 7C, <a> represents a name of each Private User Identity, and <b> indicates an HSS 250 to which a corresponding Private User Identity is assigned.

<C> indicates the name of the IMS subscription to which the corresponding Private User Identity is assigned, and <d> indicates whether the type of the Private User Identity is 'Normal' or 'PSI'.

7D is a diagram illustrating a structure of managing Public User Identity information of an HSS management table according to an embodiment of the present invention.

The HSS management table may have a management structure as shown in FIG. 7D for each Public User Identity information managed.

In FIG. 7D, <a> represents a name of each Public User Identity, and <b> indicates an HSS 250 to which a corresponding Public User Identity is assigned.

<C> indicates the name of the IMS subscription to which the corresponding Private User Identity is assigned, and <d> indicates whether the type of the Public User Identity is 'Normal' or 'PSI'.

4 is an internal block diagram illustrating a configuration of an IMS according to another embodiment of the present invention.

As shown in FIG. 4, the IMS 200 according to another embodiment of the present invention includes a CSCF having a configuration of a P-CSCF server 210, an I-CSCF server 220, and an S-CSCF server 230. , SLF server 240 and may include a plurality of HSS (250-1 ~ 250-n).

Here, the P-CSCF server 210, the I-CSCF server 220, the S-CSCF server 230, and the plurality of HSSs 250-1 to 250-n perform the same functions as those of FIG. 3. do.

As described in FIG. 3, the SLF server 240 also stores information of the HSS 250 that manages subscriber information according to user ID information for each terminal, and registers user ID information corresponding to each HSS 250. And store the data in a table, and preset the number of user ID information that can be registered for each HSS 250 to limit the registration of the user ID information that is more than the preset number that can be registered to each HSS 250. The user ID information including the IMS Subscription or Private User Identity information can be registered in one HSS 250.

In addition, the SLF server 240 manages a plurality of HSS 250 information configured in the IMS 200, and allocates registration of subscriber information according to new user ID information for the corresponding HSS 250 from any HSS 250. When receiving the request, the information of the corresponding HSS 250 may be determined to determine whether to permit registration of new user ID information requested to be registered, and the determined result may be transmitted to the HSS 250.

That is, when the SLF server 240 receives a request for registration allocation of subscriber information according to new user ID information to be registered in the HSS 250 from an arbitrary HSS 250, the corresponding HSS 250 can be preset. In the case of including the following user ID information and including the same IMS Subscription or Private User Identity information as the new user ID information to be registered, a response message allowing the registration of subscriber information according to the new user ID information may be provided. .

When the SLF server 240 receives the information of the HSS 250 managing the arbitrary user ID information from the I-CSCF server 220, the SLF server 240 searches for the information of the requested HSS 250 and retrieves the HSS 250. Information of the may be provided to the I-CSCF server 220.

The CCC 300 may directly select the HSS 250 to register subscriber information according to the new user ID information to perform registration.

Next, the operation of the IMS 200 having the configuration as shown in FIGS. 3 and 4 will be described in detail.

When the SIP message is transmitted from the terminal 100, the IMS 200 first receives the P-CSCF server 210 and transmits the received SIP type message to the I-CSCF server 220.

The I-CSCF server 220 transmits the received message to the S-CSCF server 230 that controls the call of the terminal 100 according to the user ID information included in the message received from the P-CSCF server 210. do.

At this time, the I-CSCF server 220 generates a query message for confirming the information of the HSS 250 managing the user ID information of the terminal 100 and transmits it to the SLF server 240.

When the query message is received from the I-CSCF server 220, the SLF server 240 retrieves information of the HSS 250 that manages user ID information included in the received query message from the HSS management table, and retrieves the retrieved HSS. The response message including the information of 250 is transmitted to the I-CSCF server 220.

Here, the SLF server 240 may include the IP address information of the HSS 250 as an example of the information of the HSS 250 included in the response message to be transmitted.

When the response message corresponding to the transmitted query message is received from the SLF server 240, the I-CSCF server 220 sends the corresponding HSS 250 to the corresponding HSS 250 according to the IP address information of the HSS 250 included in the received response message. Access to obtain subscriber information according to the user ID information from the HSS (250).

The I-CSCF server 220 transmits the message received from the P-CSCF server 210 to the S-CSCF server 230 that controls the call of the terminal 100 according to the subscriber information obtained from the HSS 250. In addition, the S-CSCF server 230 controls the call of the terminal 100 according to the received message to provide an integrated service.

On the other hand, when there is subscriber information according to the new user ID information to be registered, the CCC 300 transmits a registration request message to the SLF server 240 requesting the allocation of the HSS 250 to register the subscriber information. . Here, the registration request message may include new user ID information, and may include information of a specific HSS requesting registration of subscriber information according to the new user ID information according to the selection of the CCC manager.

When the registration request message is received from the CCC 300, the SLF server 240 determines whether the same IMS Subscription or Private User Identity information as the new user ID information requested for registration exists in the HSS management table.

The SLF server 240 selects the HSS 250 when the HSS 250 managing the same IMS Subscription or Private User Identity information as the new user ID information exists, and checks the received registration request message to determine a specific HSS ( If 250 information is included, the specific HSS 250 information is compared with the information of the selected HSS 250 to determine whether the two HSS 250 is the same HSS (250).

When the two HSS 250 is identified as the same HSS 250, the SLF server 240, the subscriber information according to the new user ID information requested from the CCC 300 is registered to the corresponding HSS 250 (HSS 250) 250).

When the HSS 250 is controlled to register the subscriber information according to any new user ID information by the SLF server 240, the HSS 250 performs the registration and transmits a registration result message to the CCC 300.

When the registration result message is received from the HSS 250, the SLF server 240 updates the HSS 250 management table in the HSS 250 management table so that the information of the registered HSS 250 includes the new user ID information. Perform a series of registration procedures.

However, if the two HSS 250 is identified as a non-identical HSS 250, the SLF server 240 sends a registration rejection message to the CCC 300, which denies registration of subscriber information according to the new user ID information requested to be registered. Send.

In addition, when it is determined that the registration request message received from the CCC 300 does not include specific HSS 250 information, the SLF server 240 is identical to the selected HSS 250, that is, the new user ID information requested for registration. A series of registration procedures is performed for the HSS 250 managing IMS Subscription or Private User Identity information.

The SLF server 240 performing a series of registration procedures with the selected HSS 250 transmits a result message including the registration result and the information of the registered HSS 250 to the CCC 300.

On the other hand, if there is no HSS 250 that manages the same IMS Subscription or Private User Identity information as the new user ID information requested for registration, the SLF server 240 has a specific HSS for the registration request message received from the CCC 300. (250) whether the information is included, and if the determination result includes the specific HSS 250 information, whether the specific HSS 250 includes more than the number of user ID information that can be registered through the HSS 250 management table; Check.

If the SLF server 240 confirms that the specific HSS 250 does not include more user ID information than the number that can be registered, the SLF server 240 performs a series of registration procedures with the specific HSS 250 and the number that the specific HSS 250 can register. If the above user ID information is included, the registration rejection message is transmitted to the CCC 300.

Accordingly, the specific HSS 250 registers subscriber information according to the new user ID information requested by the CCC 300 according to a series of registration procedures performed by the SLF server 240.

The SLF server 240 transmits the result message including the registration result and the information of the registered HSS 250 to the CCC 300 according to the registration procedure.

However, if the registration request message received from the CCC 300 does not include the specific HSS 250 information, the SLF server 240 receives the information of the HSS 250 whose minimum number of registered user ID information is the minimum number. After searching from the management table, it is checked whether the searched HSS 250 includes more than the registerable user ID information.

If the SLF server 240 confirms that the searched HSS 250 does not include more user ID information than the number that can be registered, the SLF server 240 performs a series of registration procedures with the searched HSS 250, and the number that the searched HSS 250 can register. If the above user ID information is included, the registration rejection message is transmitted to the CCC 300.

On the other hand, when registering the subscriber information according to the new user ID information, the CCC 300 selects any HSS 250 directly, and requests registration of the subscriber information according to the new user ID information to the corresponding HSS 250 You can send a message.

When the registration message is received from the CCC 300, the HSS 250 transmits a registration request message to the SLF server 240 requesting registration allocation of subscriber information according to the new user ID information. Here, the registration request message includes new user ID information.

When the SLF server 240 receives a registration request message from the HSS 250, the SLF server 240 determines whether the same IMS Subscription or Private User Identity information as the new user ID information requested for registration exists in the HSS 250 management table. If there is an HSS 250 that manages the same IMS Subscription or Private User Identity information as the user ID information, the corresponding HSS 250 is selected.

In addition, the SLF server 240 compares the selected HSS 250 with the HSS 250 that transmitted the registration request message, and if it is determined that the two HSSs 250 are not the same, the SLF server 240 sends the registration rejection message to the HSS 250. To send.

However, if it is determined that the two HSS 250 is the same, the SLF server 240 checks the user ID information included in the corresponding HSS 250 requested to be registered, and registers if the checked user ID information is more than the number that can be registered. The denial message is transmitted to the HSS 250, and if the number is not more than the number that can be registered, the corresponding HSS 250 is controlled so that subscriber information according to the new user ID information requested to be registered is registered with the HSS 250 requested to be registered.

The HSS 250 registers the subscriber information when the registration of the subscriber information according to the new user ID information requested for registration is controlled by the SLF server 240.

When the SLF server 240 registers the subscriber information according to the new user ID information requested to be registered in the HSS 250, the SLF server 240 transmits the registration result message to the HSS 250, and the CCC 300 through the HSS 250. To be delivered to.

On the other hand, the SLF server 240 of the IMS according to another embodiment of the present invention, as described above, stores the information of the HSS 250 for managing subscriber information according to the user ID information for each terminal, and each HSS ( The user ID information registered corresponding to the method 250 is stored in a table, and the number of user ID information that can be registered for each HSS 250 is set in advance, so that the user ID information that is greater than or equal to the preset number of registrations can be stored in each HSS 250. In addition to restricting the registration to the user, the user ID information including the same IMS Subscription or Private User Identity information can be registered in one HSS (250).

When the SLF server 240 receives a request for the allocation of the HSS 250 to the subscriber information registration according to the new user ID information from the CCC 300, the SLF server 240 grasps the information of the registerable HSS 250 and the CCC 300. If a request for registration allocation of subscriber information according to the new user ID information for the HSS 250 is requested from any HSS 250, the new user requested to be registered is identified by identifying the information of the HSS 250. It may be determined whether to permit registration of the ID information, and the determined result may be transmitted to the HSS 250.

In addition, when the SLF server 240 receives information of the HSS 250 managing arbitrary user ID information from the I-CSCF server 220, the SLF server 240 searches for the information of the requested HSS 250 and retrieves the HSS 250. Information of the may be provided to the I-CSCF server 220.

That is, when the SLF server 240 receives a request for the allocation of the HSS 250 for subscriber information registration according to any new user ID information from the CCC 300, the pre-registered user ID information is the minimum number, and the new user ID. Search and provide information of the HSS 250 including the same IMS Subscription or Private User Identity information as the information, and assign registration of subscriber information according to new user ID information for the HSS 250 from any HSS 250. If the HSS 250 includes the user ID information of less than the preset number of registrations, and includes the same IMS Subscription or Private User Identity information as the new user ID information to be registered, the new user ID information is included in the new user ID information. A response message may be provided to allow registration of subscriber information accordingly.

Next, the SLF server 240 of the IMS 200 will be described in detail.

8 is a block diagram of an SLF server according to an embodiment of the present invention.

As shown in FIG. 8, the SLF server 240 may include a controller 241, an HSS information manager 242, an HSS policy manager 243, and a call processor 244.

When the registration request message is received from the CCC 300 or the HSS 250, the control unit 241 of the SLF server 240 receives the information of the corresponding HSS 250 to register the new user ID information requested for registration. Through the management unit 242 and the HSS policy management unit 243, and the response message according to the result of the determination is transmitted to the CCC 300 or the HSS 250.

The HSS information manager 242 may include an HSS management table and a preset number of registerable user ID information.

The information management unit includes an HSS management table having a structure and a structure as shown in FIGS. 5 to 7 described above.

The HSS policy management unit 243 grasps the number of user ID information registered for each HSS 250 and the IMS Subscription or Private User Identity information included for each HSS 250, and thus the distributed registration policy and new user ID of user ID information. Implement a policy to restrict registration of information.

That is, when registering new user ID information according to the distributed registration policy, the HSS policy management unit 243 allows new user ID information to be registered in the HSS 250 having the minimum number of registered user ID information. Preventing centralized registration with the HSS 250 is prevented.

In addition, when the HSS policy manager 243 registers the new user ID information according to the registration restriction policy, each HSS 250 is classified from at least a preset number of user ID information that is preset and IMS Subscription or Private User Identity information that is not the same. It is possible to restrict the registration of the user ID information.

The call processing unit 244 grasps and provides information of the HSS including the terminal user ID information requested for the call.

That is, the call processing unit 244 detects the corresponding HSS information from the HSS management table of the HSS information management unit 242 when the information of the HSS managing the user ID information of the terminal requesting the call is received from the CSCF server, and detects the detected HSS. By providing the information of the CSCF server, the CSCF can be connected to the corresponding HSS to receive the subscriber information according to the user ID information of the call request terminal.

9 is a flowchart illustrating a method of registering new user ID information of an SLF server according to an embodiment of the present invention.

As shown in FIG. 9, the SLF server 240 may receive a registration request message from the CCC 300 requesting an assignment of a registerable HSS 250 to subscriber information according to new user ID information to be registered. It may be (S101).

When the registration request message is received from the HSS 250, the SLF server 240 determines whether the same IMS Subscription or Private User Identity information as the new user ID information requested for registration exists in the HSS 250 management table (S102). ).

As a result of the determination, the SLF server 240 selects the corresponding HSS 250 when the HSS 250 managing the same IMS Subscription or Private User Identity information as the new user ID information exists (S103).

In addition, the SLF server 240 whether the registration request message received from the CCC 300 includes specific HSS 250 information, and designates registration of subscriber information according to the new user ID information to the specific HSS 250. To grasp (S104).

As a result of the determination, when the received registration request message includes the specific HSS 250 information, the SLF server 240 compares the specific HSS 250 information with the information of the selected HSS 250, and thus, the two HSS 250. Check whether the same HSS 250 (S105).

When the two HSS 250 is identified as the same HSS 250, the SLF server 240, so that the subscriber information according to the new user ID information requested from the CCC 300 to register with the HSS 250, the corresponding HSS 250 ) And perform a series of registration stops to modify the HSS 250 management table so that the information of the registered HSS 250 is updated (S106).

However, if the two HSS 250 is identified as a non-identical HSS 250, the SLF server 240 sends a registration rejection message to the CCC 300, which denies registration of subscriber information according to the new user ID information requested to be registered. Transmit (S107).

In addition, when it is determined that the registration request message received from the CCC 300 does not include specific HSS 250 information, the SLF server 240 is identical to the selected HSS 250, that is, the new user ID information requested for registration. A series of registration procedures is performed for the HSS 250 managing IMS Subscription or Private User Identity information (S106).

The SLF server 240 performing a series of registration procedures with the selected HSS 250 transmits the result message including the registration result and the information of the registered HSS 250 to the CCC 300 (S108).

On the other hand, if there is no HSS 250 that manages the same IMS Subscription or Private User Identity information as the new user ID information requested for registration, the SLF server 240 has a specific HSS for the registration request message received from the CCC 300. In operation S109, the method may determine whether to register the subscriber information according to the new user ID information to the specific HSS 250 including the information.

If the received registration request message includes specific HSS 250 information, the SLF server 240 determines whether the specific HSS 250 includes more than the user ID information that can be registered through the HSS 250 management table. In operation S110, when the received registration request message does not include specific HSS 250 information, information of the HSS 250 having the minimum number of registered user ID information is searched from the HSS 250 management table. After that (S111), it is checked whether the searched HSS 250 includes more than the number of user ID information that can be registered (S110).

If the SLF server 240 confirms that the HSS 250 does not include more than the number of user ID information that can be registered, the SLF server 240 performs a series of registration procedures with the HSS 250 (S112), and the HSS 250 is performed. If the number of user ID information that can be registered is included, a registration rejection message is transmitted to the CCC 300 (S113).

In addition, the SLF server 240, which has performed a series of registration procedures with the HSS 250, transmits the result message including the registration result and the information of the registered HSS 250 to the CCC 300 (S108).

10 is a flowchart illustrating a method of registering new user ID information of the SLF server 240 according to another embodiment of the present invention.

As shown in FIG. 10, the SLF server 240 may receive a registration request message requesting registration allocation of subscriber information according to new user ID information for the HSS 250 from any HSS 250. (S201).

When the registration request message is received from the HSS 250, the SLF server 240 determines whether IMS Subscription or Private User Identity information identical to the new user ID information requested for registration exists in the HSS 250 management table (S202). ).

As a result of the determination, the SLF server 240 selects the HSS 250 when the HSS 250 managing the same IMS Subscription or Private User Identity information as the new user ID information exists (S203).

In addition, the SLF server 240 compares the selected HSS 250 with the HSS 250 that transmitted the registration request message and determines whether the two HSSs 250 are the same HSS 250 (S204).

If it is determined that the two HSSs 250 are not the same, the SLF server 240 transmits a registration rejection message to the HSS 250 (S205). If it is determined that the two HSSs 250 are the same, the SLF server 240 requests the registration. It is checked whether the corresponding HSS 250 includes more than the number of user IDs that can be registered (S206).

If the user ID information included in the HSS 250 is greater than or equal to the number that can be registered, the SLF server 240 transmits a registration rejection message to the HSS 250 (S205). A series of registration stops are performed to control the HSS 250 so that subscriber information according to the user ID information is registered with the HSS 250 and modify the HSS 250 management table so that the information of the registered HSS 250 is updated. It performs (S207).

As described above, the SLF server 240 performing a series of registration procedures transmits the result message included in the registration result information to the HSS 250 (S208).

Meanwhile, in the detailed description of the present invention, the IMS 200 proposed by 3GPP has been described as an example, but it can be seen that the same applies to the MMD proposed by 3PP2.

In addition, while the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the spirit of the present invention, and such modifications and modifications belong to the appended claims. It is natural.

As described above, the method and the apparatus for managing the HSS information of the IMS according to the present invention include an SLF server that manages the information of each HSS in an IMS in which a plurality of HSSs are constructed, the number of terminals which can be registered in advance for each HSS. By including only the user information and registering the subscriber information according to the new user ID information connected to the IMS, the user ID information is concentrated in one HSS by placing the highest priority on the HSS having the minimum number of registered user ID information. It may have an effect of preventing the case of registration.

In addition, the method and the apparatus for managing the HSS information of the IMS according to the present invention, the SLF server that manages the information of each HSS in the IMS, the terminal user includes the same upper-level category for the user ID information registered in each HSS By configuring the information, the subscriber information according to the user ID information for each terminal connected to the IMS can be effectively managed.

Claims (30)

In the Home Subscriber Server (HSS) information management system of IP Multimedia Core Network Subsystem (IMS), A plurality of HSSs for managing subscriber information according to a plurality of user ID information connected to the IMS; A customer care center for transmitting a registration request message requesting allocation of the registerable HSS according to the new user ID information when registering subscriber information according to the new user ID information; And Storing and managing the plurality of HSS information and user ID information registered corresponding to each of the HSS, and when a registration request message is received from the customer care center, a category of a higher level identical to the new user ID information requested for registration and And a subscription locator function server (SLF server) for retrieving information of the HSS including the minimum number of user ID information and registering subscriber information according to the new user ID information with the retrieved HSS. The method of claim 1, The SLF server, And managing each of the HSSs to include user ID information of a predetermined number or less. The method of claim 1, Each user ID information, IMS HSS information management system including sub-hierarchical structure consisting of IMS Subscription, Private User Identity information, and Public User Identity information in the category of the upper stage from the lower stage. The method of claim 1, The SLF server, When the registration request message is received, information of the HSS including the category of the same upper end as the new user ID information is searched for, and if the information of the HSS including the category of the same upper end is present, the HSS. Register the subscriber information according to the new user ID information, and if the information of the HSS does not exist, search for the information of the HSS including the minimum number of user ID information, according to the new user ID information to the searched HSS HSS information management system of the IMS, characterized by registering the subscriber information. The method of claim 1, The SLF server, When the subscriber information according to the new user ID information is registered in the searched HSS, a result message including the searched HSS information and the registration information is transmitted to the customer care center, and the searched HSS is among the plurality of managed HSS information. IMS HSS information management system, characterized in that for updating the information. The method of claim 1, The customer care center, HSS information management system of the IMS, characterized in that the information on the specific HSS requesting that the subscriber information according to the new user ID information is registered in the registration request message to the SLF server. The method of claim 6, The SLF server, When the registration request message is received, information of an HSS including a category higher than that of the new user ID information is searched. If it is determined that the searched HSS and the specific HSS are the same, the specific HSS is read. The subscriber information according to the new user ID information is registered, and if it is determined that the two HSS is not the same, the HSS information management system of the IMS, characterized in that the registration rejection message to reject the registration to the customer management center. The method of claim 6, The SLF server, When the registration request message is received, information of the HSS including a category higher than that of the new user ID information is searched. If the information of the HSS is not found, the terminal user ID information included in the specific HSS is searched for. And if the identified specific HSS includes user ID information of less than or equal to a preset number, the subscriber information according to the new user ID information is registered in the specific HSS. The method of claim 8, The SLF server, And if the specific HSS includes more than a predetermined number of registerable user ID information, sending a registration rejection message to the customer care center to reject the registration. The method of claim 1, The SLF server, An HSS information manager configured to store an HSS management table including the user ID information stored corresponding to each of the HSSs, and a preset number of registerable user ID information; The number of the user ID information registered in each HSS and the upper end category are identified, and the new user ID information is registered at the highest priority in the HSS having the minimum number of registered user ID information, and the registration is possible for each HSS. An HSS policy manager configured to perform a policy for restricting registration of user ID information including a plurality of user ID information and an upper level category that is not the same as previously registered user ID information; A control unit which, upon receiving a registration request message from the customer management center, retrieves information of the HSS to which the registered new user ID information is registered and provides the information to the customer management center through the HSS information management unit and the HSS policy management unit; And IMS HSS information management system comprising a call processing unit for identifying and providing the terminal user ID information requested call. In the HSS information management system of IMS, A plurality of HSSs for managing subscriber information according to a plurality of user ID information connected to the IMS; A customer management center for requesting registration of subscriber information according to the new user ID information directly to the arbitrary HSS if the subscriber information according to any new user ID information is to be registered; And A registration request message for storing and managing the plurality of HSS information and user ID information registered corresponding to each HSS, and requesting registration of subscriber information according to the new user ID information requested by the customer management center from the HSS; When received, the HSS information of the IMS including the SLF server to determine the HSS, determine whether the requested registration or not, and register the subscriber information according to the new user ID information in the HSS according to the determination result Management system. The method of claim 11, The SLF server, When the registration request message is received, search for information of the HSS including the upper level category same as the new user ID information, and if it is determined that the searched HSS and the registration requested HSS are the same, the registration requested And the subscriber information according to the new user ID information is registered in the HSS according to the number of new user ID information included in the HSS. The method of claim 12, The SLF server, If the new user ID information included in the registration-requested HSS is less than or equal to a preset number, the subscriber information according to the new user ID information is registered with the HSS. If the new user ID information is more than the preset number, the registration is rejected. And a registration rejection message to the HSS. The method of claim 12, The SLF server, And if it is determined that the searched HSS and the registration requested HSS are not the same, a registration rejection message for rejecting the registration is transmitted to the HSS. The method of claim 12, The SLF server, If the information of the HSS including the category of the same upper end is not retrieved, the number of terminal user ID information included in the HSS requested to be registered is determined, and the number of registered new user ID information is preset. In the following, the subscriber information according to the new user ID information is registered in the HSS, and if more than the predetermined number of registrations, the HSS information management of the IMS, characterized in that the registration rejection message for rejecting registration to the HSS. system. The method of claim 11, The SLF server, When the subscriber information according to the new user ID information is registered in the registration requested HSS, a result message including the information according to the registration is transmitted to the HSS to be delivered to the customer care center, and the plurality of HSSs managed HSS information management system of the IMS, characterized in that for updating the information of the HSS requested registration from among the information. In the HSS information management device of IMS, An HSS management table that stores user ID information stored corresponding to each HSS of a plurality of HSSs and a preset number of registerable user ID information for each HSS; The number of the user ID information registered in each HSS and the upper end category are identified, and the new user ID information is registered at the highest priority in the HSS having the minimum number of registered user ID information, and the registration is possible for each HSS. An HSS policy manager configured to perform a policy for restricting registration of user ID information including a plurality of user ID information and an upper level category that is not the same as previously registered user ID information; When a registration request message requesting registration allocation of subscriber information according to any new user ID information is received from the customer care center and the HSS, the HSS to which the new user ID information is to be registered through the HSS information management unit and the HSS policy management unit. A control unit which grasps information of the user and registers subscriber information according to the new user ID information to the identified HSS; And HSS information management device of the IMS including a call processing unit for identifying and providing the terminal user ID information requested call. In the HSS information management method of the IMS, Storing and managing a plurality of HSS information and user ID information registered corresponding to each HSS by the SLF server; Sending, by the customer care center, a registration request message to the SLF server requesting registration allocation of subscriber information according to any new user ID information; The SLF server searches for an HSS including a category and a minimum number of user ID information of the same upper level as the new user ID information requested for registration according to the received registration request message, and obtains information of the registerable HSS. Doing; And And registering, by the SLF server, subscriber information according to the new user ID information with the obtained HSS. The method of claim 18, The SLF server managing the user ID information registered corresponding to each of the HSS, And managing each of the HSSs to include user ID information of a predetermined number or less. The method of claim 18, Obtaining information of the registerable HSS by the SLF server, When the registration request message is received, searching for information of an HSS including a category higher than that of the new user ID information, and obtaining the searched HSS as the registerable HSS; Wow Searching for information of the HSS including the minimum number of user ID information, and obtaining the searched HSS as the registerable HSS when the information of the HSS including the same upper level category does not exist. HMS information management method of IMS. The method of claim 18, After the registration, the SLF server transmits a result message including the obtained HSS information and a result of the registration to the customer care center, and updates the obtained HSS information among the plurality of managed HSS information. HMS information management method of the IMS further comprising the step. The method of claim 18, Sending, by the customer care center, a registration request message including information of a specific HSS requesting registration of subscriber information according to the new user ID information to the SLF server; When the SLF server receives the registration request message, searching for information of an HSS including a category higher than that of the new user ID information, and comparing the searched HSS with the specific HSS; And When the SLF server determines that the two HSSs are the same as the result of the comparison, the SLF server registers subscriber information according to the new user ID information in the specific HSS, and rejects the registration when it is determined that the two HSSs are not the same. And sending a registration rejection message to the customer care center. The method of claim 22, Determining, by the SLF server, the number of terminal user ID information included in the specific HSS when the information of the HSS including the upper category same as the new user ID information is not retrieved; Wow If the SLF server determines that the number of terminal user ID information included in the specific HSS is less than or equal to a preset registerable number, the SLF server registers subscriber information according to the new user ID information in the specific HSS and registers the preset registration. If it is determined that the number is more than possible, transmitting the registration rejection message to the customer care center. In the HSS information management method of the IMS, Storing and managing a plurality of HSSs and user ID information registered corresponding to the respective HSS information by the SLF server; The customer care center selects one HSS to register subscriber information according to new user ID information among the plurality of HSSs, and transmits a registration message requesting registration of subscriber information according to the new user ID information to the selected HSS. Doing; Sending, by the HSS, a registration request message to the SLF server to request registration allocation of subscriber information according to the new user ID information according to the received registration message; Determining, by the SLF server, the HSS requested for registration according to the reception of the registration request message and allowing the registration of the HSS; And Registering the subscriber information according to the new user ID information with the HSS when the SLF server determines that the registration is allowed, and transmitting a registration rejection message to the HSS when it is determined that the registration is rejected. HMS information management method of IMS. The method of claim 24, Determining whether the SLF server allows the registration for the HSS, In response to receiving the registration request message, searching for information of an HSS including a category higher than that of the new user ID information, and comparing the retrieved HSS with the registration requested HSS; If it is determined that the two HSSs are the same, determining the number of new user ID information included in the registered HSS; And If the identified new user ID information is equal to or less than a predetermined number of registrations, permitting the registration of the requested HSS; and if the new user ID information is more than the predetermined number of registrations, rejecting registration. Information management method. The method of claim 25, And if it is determined that the searched HSS and the registration requested HSS are not the same, rejecting registration for the registration requested HSS. The method of claim 25, Determining the number of terminal user ID information included in the registered HSS when the information of the HSS including the same upper level category is not retrieved; Wow If the identified new user ID information is equal to or less than a predetermined number of registrations, permitting the registration to the requested HSS; and if more than the preset number of registrations, rejecting registration. Information management method. The method of claim 25, After the registration, the SLF server transmits a result message including the information according to the registration to the registration requested HSS to be delivered to the customer care center, and among the plurality of HSS information managed by the SLF server, HMS information management method of the IMS further comprising the step of updating the information. In the HMS information management method of the SLF server in IMS, Storing and managing user ID information registered in each HSS in a table corresponding to a plurality of HSS information; If a registration request message is received, determining whether the registration request message has been received from a customer care center or any HSS; If the registration request message is received from the customer care center to request registration allocation of subscriber information according to any new user ID information, the same upper level category and the minimum number of users as the new user ID information. Retrieving the HSS including ID information and registering subscriber information according to the new user ID information with the retrieved HSS; And If the registration request message is received from the arbitrary HSS, and is a registration request message for requesting registration allocation of subscriber information according to any new user ID information, the HSS transmitting the registration request message is identified, and the transmitted HSS is determined. Registering the subscriber information according to the new user ID information to the transmitted HSS when it is determined that the same category as the new user ID information includes the same upper level category and the user ID information of a predetermined number or less. How to manage HSS information in SLF server. The method of claim 29, If the registration request message is received from the customer care center, and the registration request message that includes the information of the specific HSS requesting registration allocation of subscriber information according to any new user ID information, the upper stage that is the same as the new user ID information Retrieving information of the HSS including a category of; Wow If it is determined that the two HSSs are the same by comparing the searched HSS with the specific HSS, the subscriber information according to the new user ID information is registered in the specific HSS, and if it is determined that the two HSSs are not the same, And transmitting a registration rejection message to the customer care center that rejects registration.

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