WO2013152715A1

WO2013152715A1 - Subscription information transmission method and device for closed subscription group

Info

Publication number: WO2013152715A1
Application number: PCT/CN2013/073944
Authority: WO
Inventors: 张娟; 艾明
Original assignee: 电信科学技术研究院
Priority date: 2012-04-09
Filing date: 2013-04-09
Publication date: 2013-10-17
Also published as: CN103369500B; CN103369500A

Abstract

Disclosed are a subscription information transmission method and device for a closed subscription group (CSG). The method comprises: an information management server determines that the CSG subscription information corresponding to a UE has changed; the information management server transmits the changed CSG subscription information to a core network device corresponding to the UE, so that the core network device uses the changed CSG subscription information to update its own stored CSG subscription information of the PLMN where the UE is and/or the CSG subscription information of the PLMN that is equivalent to the PLMN where the UE is. In an embodiment of the present invention, when CSG subscription information has changed, an MME can timely obtain the changed CSG subscription information, so that when an UE undergoes an inter-PLMN switch, the MME can execute the correct access control determination, thereby ensuring the continuity of UE activation service.

Description

The present invention claims to be submitted to the Chinese Patent Office on April 9, 2012, the application number is 201210100449.6, and the invention name is "a method and device for transmitting CSG contract information". Priority is hereby incorporated by reference in its entirety. Technical field

The present invention relates to the field of communications technologies, and in particular, to a CSG (Closed Subscriber Group) subscription information transmission method and device. In the initial discussion of the access process of the CSG cell, the operator considers that there is no need to support handover between CSG cells deployed by different operators, and the UE (User Equipment, User Equipment) is from a PLMN (Public Land Mobile Network, public). The process of switching the CSG cell under the land mobile network to the CSG cell under another PLM N is not allowed; ^P MME (Mobility Management Entity) to the HSS (Home Subscriber Server, attribution) When the user server obtains the CSG subscription information, the HSS will only send the CSG subscription information of the PLM N currently camped by the UE to the M ME, and will not send the CSG subscription information of the other PLMN to the MME. With the subsequent evolution of the protocol, the operator wants the UE to ensure the mobility continuity between the CSG cells when moving between the equivalent PLMNs; that is, if the UE moves from the CSG cell under one PLMN to the CSG cell under another PLMN. If the two PLMNs are mutually equivalent PLMNs, the handover process of the scenario needs to be supported; based on this, the source-side core network device needs to know the CSG subscription information of the UE in the target PLMN to access the UE during handover. control. In the process of implementing the present invention, the inventors have found that at least the following problems exist in the prior art:

The CSG subscription information corresponding to the UE stored in the HSS may change, that is, the CSG subscription information obtained by the MME from the HSS may be the wrong CSG subscription information, and the CSG subscription information of the UE may be changed. The MME cannot modify the erroneous CSG subscription information, causing the MME to generate an error when subsequently using the CSG subscription information for related processing.

Further, the MME needs to maintain CSG subscription information in the equivalent PLMN list to determine whether the UE can switch to the cell of the equivalent PLMN; however, the HSS does not know the equivalent PLMN information of the UE, and therefore, when the UE is in other PLMNs When the CSG information in the change occurs, the HSS does not send the CSG subscription information to the MME; when the inter PLMN handover occurs, the UE switches to a CSG cell that cannot provide services for the UE, the connection of the UE is rejected, and the communication is interrupted. The current connection ^ ^ is loaded. Summary of the invention

The embodiment of the invention provides a method and a device for transmitting CSG subscription information, so that the MME can obtain the changed CSG subscription information in time when the CSG subscription information changes.

In order to achieve the above object, an embodiment of the present invention provides a method for transmitting CSG subscription information of a closed subscription group, including:

The information management server determines that the CSG subscription information corresponding to the user equipment UE changes; The information management server sends the changed CSG subscription information to the core network device corresponding to the UE, and the core network device uses the changed CSG subscription information to update the saved UE that currently resides in the public land. CSG subscription information of the mobile network PLMN and/or CSG subscription information of the equivalent PLMN of the currently camped PLMN.

An embodiment of the present invention provides a method for transmitting CSG subscription information of a closed subscription group, including:

The core network device receives the changed CSG subscription information corresponding to the user equipment UE from the information management server;

The core network device updates the CSG subscription information of the public land mobile network PLMN currently camped by the UE and/or the CSG subscription information of the equivalent PLMN of the currently camped PLMN by using the changed CSG subscription information. .

An embodiment of the present invention provides an information management server, including:

a determining module, configured to determine that the CSG subscription information of the closed subscription group corresponding to the user equipment UE changes;

a sending module, configured to send the changed CSG subscription information to the core network device corresponding to the UE, where the core network device uses the changed CSG subscription information to update the saved UE that currently resides in the public land CSG subscription information of the mobile network PLMN and/or CSG subscription information of the equivalent PLMN of the currently camped PLMN.

The embodiment of the invention provides a core network device, including:

a receiving module, configured to receive the changed closed subscription group CSG subscription information corresponding to the user equipment UE from the information management server; a management module, configured to update, by using the changed CSG subscription information, CSG subscription information of the public land mobile network PLMN currently camped by the UE and/or CSG subscription information of the equivalent PLMN of the currently camped PLMN .

Compared with the prior art, the embodiment of the present invention has at least the following advantages: In the embodiment of the present invention, when the CSG subscription information changes, the MME can obtain the changed CSG subscription information in time, so that when the UE occurs across the PLMN During the handover, the MME can perform the correct access control judgment, which in turn ensures the continuity of the UE activation service. 1 is a schematic flowchart of a method for transmitting CSG subscription information according to Embodiment 1 of the present invention; FIG. 2 is a schematic structural diagram of an information management server according to Embodiment 2 of the present invention; FIG. 3 is a network according to Embodiment 3 of the present invention; Schematic diagram of the side device.

Embodiment 1 Since the equivalent PLMN list is configured by the local operator in the core network device, the HSS does not know the list of the equivalent PLMN in which the UE currently camps on the PLMN; therefore, when the core network device obtains the CSG subscription information from the HSS The same type of PLMN list that the UE currently resides in the PLMN needs to be sent to the HSS, and the HSS returns the CSG subscription information of the currently camped PLMN of the UE and the CSG subscription information of the equivalent PLMN to the core network device; when the UE chooses to switch to another PLMN When the CSG cell is located, the core network device determines whether there is information about the CSG cell in the saved CSG subscription information, and if so, allows switching to The CSG cell, otherwise it cannot be handed over to the CSG cell.

In the prior art, if the CSG cell of the UE is deleted, that is, the CSG cell subscribed by the UE is removed from the CSG subscription information, the core network device obviously cannot detect the situation, and the core network device cannot obtain the self. The CSG signing information was tampered with.

For the above problem, in the embodiment of the present invention, the following situations are considered: (1) The core network device needs to maintain CSG subscription information in the equivalent PLMN list, and is used to determine whether the UE can switch to the cell of the equivalent PLMN; The UE does not know the equivalent PLMN information of the UE. Therefore, when the CSG information of the UE changes in other PLMNs, the HSS does not send the CSG subscription information to the core network device. When the UE inter-inter-MPMN handover occurs, the handover to a network cannot be performed. When the UE provides the served CSG cell, the connection of the UE is rejected, and the current connection bearer is interrupted. (2) If the UE is currently in the roaming state, the CSG subscription information of the UE in the roaming state may not be configured in the HSS. There is no mechanism to obtain the CSG subscription information of the UE in the equivalent PLMN, so that the inter PLMN handover between the UEs and the equivalent PLMN cannot be guaranteed;

The first embodiment of the present invention provides a method for transmitting CSG subscription information, so as to implement a process of handover of a UE across a PLMN in a roaming state, and a process of ensuring that the UE switches to an equivalent PLMN when the CSG subscription information is changed; The method includes the following steps: Step 101: The information management server determines that the CSG subscription information corresponding to the UE changes.

Step 102: The information management server sends the changed CSG subscription information to the core network device corresponding to the UE. The core network device may specifically be: MME; or, SGSN (Serving GPRS Supporting Node, Serving GPRS Support Node). In the embodiment of the present invention, when the CSG subscription information stored in the information management server changes, if a certain CSG cell subscribed by the UE in the equivalent PLMN is removed from the CSG subscription information, the core network device should not allow the UE. The information management server needs to send the changed CSG subscription information to the core network corresponding to the UE after the information management server determines that the CSG subscription information corresponding to the UE changes. device.

The first information management server sends the changed CSG subscription information to the core network device corresponding to the UE, including but not limited to: the information management server determines whether the UE is currently camping on the PLMN or the equivalent PLMN list of the currently camped PLMN. The CSG subscription information changes; if yes, the information management server initiates an update process to send the changed CSG subscription information to the core network device corresponding to the UE; if not, the information management server does not need to change The CSG subscription information is sent to the core network device corresponding to the UE.

In the embodiment of the present invention, the information management server determines whether the CSG subscription information in the equivalent PLMN list of the currently camped PLMN or the currently camped PLMN changes, including but not limited to: the information management server maintains the current resident PLMN of the UE. And an equivalent PLMN list of the currently camped PLMN; and, the information management server determines, by the maintained current PLMN of the UE and the equivalent PLMN list of the currently camped PLMN, whether the UE is currently camping on the PLMN or currently camping on the PLMN. The CSG subscription information in the equivalent PLMN list changes.

It should be noted that the UE currently needs to be maintained on the information management server. The PLMN and the list of equivalent PLMNs currently camping on the PLMN, and in order to implement this process, in the embodiment of the present invention:

The information management server receives a message from the core network device for requesting CSG subscription information of the UE; after receiving the message, the information management server sets the CSG subscription information of the PLMN currently camped by the UE and the equivalent PLMN of the currently resident PLMN. The CSG subscription information is sent to the core network device.

After receiving the message, the information management server determines whether the message carries an equivalent PLMN list in which the UE currently camps on the PLMN;

If yes, and when the information management server does not previously store the equivalent PLMN list of the currently camped PLMN and the currently camped PLMN, the information management server obtains from the message an equivalent PLMN list of the currently camped PLMN of the UE, and stores the UE The list of equivalent PLMNs currently hosting the PLMN and the currently camped PLMN; when the information management server previously stores the list of equivalent PLMNs of the currently camped PLMN and the currently camped PLMN, the information management server deletes the previously stored UE currently camped on a PLMN and an equivalent PLMN list currently camping on the PLMN, and obtaining an equivalent PLMN list of the currently camped PLMN of the UE from the message, and storing an equivalent PLMN list of the currently camped PLMN and the obtained currently camped PLMN;

If no, and when the information management server previously stores the equivalent PLMN list in which the UE currently camps on the PLMN and the currently camped PLMN, then the information management server deletes the list of equivalent PLMNs of the PLMN currently stored by the UE.

Specifically, when receiving the message requesting the CSG subscription information, the information management server saves the information that the UE currently camps on the PLMN, and saves the equivalent PLMN of the PLMN. If the CSG subscription information of the UE in the information management server is changed, the information management server determines whether the changed CSG subscription information is the CSG subscription information of the UE currently camping on the PLMN and its equivalent PLMN (ie, whether it is delivered to the core). The CSG subscription information of the network device); if not, the information management server does not need to send the changed CSG subscription information to the core network device; if yes, the information management server sends the changed CSG subscription information to the core network device, and updates the core network device. Saved CSG subscription information.

Further, in a scenario where the UE moves, or the UE moves to a new CSG cell (eg, the UE moves to a new core network device), or the UE does not move and the accessed PLMN changes, the UE accesses the core network. The device sends a new update request message to the information management server to re-acquire the CSG subscription information of the UE. After receiving the request message of the core network device, the information management server updates the PLMN currently camped by the UE and its equivalent PLMN. List. If the request message includes a new equivalent PLMN list, the information management server saves the new equivalent PLMN list and deletes the previously stored equivalent PLMN list; if the request message does not include the new equivalent PLMN list, The information management server deletes the previously stored list of equivalent PLMNs.

Manner 2: The information management server sends the changed CSG subscription information to the core network device corresponding to the UE. The information management server changes the CSG subscription information of the UE in the information management server without saving the equivalent PLMN list. The CSG subscription information is directly sent to the core network device. After receiving the changed CSG subscription information, the core network device determines whether the CSG subscription information in the PLMN or the equivalent PLMN is currently occupied by the UE. Modify; if yes, the core network device updates the CSG subscription of the UE that it has saved by receiving the changed CSG subscription information. Information; if not, the core network device ignores the received CSG subscription information.

Step 103: The core network device receives the changed CSG subscription information corresponding to the UE from the information management server.

Step 104: The core network device uses the changed CSG subscription information to update the CSG subscription information of the PLMN currently hosted by the UE and/or the CSG subscription information of the equivalent PLMN currently camping on the PLMN.

In the embodiment of the present invention, the core network device uses the changed CSG subscription information to update the CSG subscription information of the currently reserved PLMN of the UE and the CSG subscription information of the equivalent PLMN of the currently camped PLMN, including: the core network device. Determining whether the CSG subscription information in the equivalent PLMN of the UE currently camping on the PLMN and/or the currently camping PLMN is modified; if yes, the core network device uses the changed CSG subscription information to update the UE that is currently camped on the PLMN. CSG subscription information and/or CSG subscription information of the equivalent PLMN currently camping on the PLMN; if not, the core network device discards the received changed CSG subscription information.

Further, the core network device updates the CSG subscription information of the currently camped PLMN of the UE and the CSG subscription information of the equivalent PLMN of the currently camped PLMN by using the changed CSG subscription information, including: when the UE currently camps on the PLMN When the CSG subscription information changes, the core network device updates the CSG subscription information of the UE currently camped on the PLMN by using the changed CSG subscription information; and/or, when the CSG subscription information of the equivalent PLMN currently camping on the PLMN occurs. When changing, the core network device updates the CSG subscription information of the equivalent PLMN of the currently camped PLMN that is saved by using the changed CSG subscription information. In the embodiment of the present invention, the information management server may be: HSS; or CSS (CSG Subscriber Server, closed subscription subscriber group subscription server); and CSG subscription information in the roaming state of the UE may be stored in the CSS; To a certain network, the core network device of the roaming network needs to obtain the contracted CSG information of the UE in the CSS. It should be noted that, based on security and data maintenance considerations, the operator does not want to save the CSG subscription information of the UE under the roaming PLMN in the HSS, and uses a separate entity to save and manage the CSG subscription information of the UE in the roaming state. Therefore, the CSS is introduced, and the CSS is used to save the CSG subscription information of the roaming user, and provide the CSG subscription information of the UE in the VPLMN (Virtual-PLMN, Virtual Public Land Mobile Network) to the core network device.

When the information management server is a CSS, the core network device needs to send a message to the CSS for requesting the CSG subscription information of the UE, where the message carries the equivalent PLMN list of the PLMN currently camped by the UE; after receiving the message, the CSS saves the message. The UE currently camps on the PLMN and the related information of the equivalent PLMN list of the currently camped PLMN; afterwards, the CSS sends the CSG subscription information of the currently camped PLMN of the UE and the CSG subscription information of the equivalent PLMN currently camping on the PLMN to the core network device. After that, the core network device receives the CSG subscription information of the current resident PLMN of the UE from the CSS and the CSG subscription information of the equivalent PLMN currently camping on the PLMN.

In a preferred embodiment of the present invention, when the UE accesses a CSG cell, the core network device receives an attach request message or a location update request (such as a TAU (Tracking Area Update) request) message from the UE. And according to the TAI (Tracking Area Identity) and the IMSI (International Mobile Subscriber Identity) of the currently camped cell of the UE, and The list of equivalent PLMNs stored in the core network device determines whether the UE currently resides in the home network or the roaming network; when the UE camps on the roaming network and the CSS is deployed in the network, the core network device sends a CSG for requesting the UE to the CSS. The message of the subscription information is used to obtain the CSG subscription information from the CSS, where the message includes the equivalent PLMN list of the PLMN currently camped by the UE; after receiving the message, the CSS returns the CSG subscription information of the currently camped PLMN of the UE to the core network device, and the like. CSG subscription information of the price PLMN list; when the UE resides in the home network and/or the network does not deploy the CSS, the core network device sends a message for requesting the CSG subscription information of the UE to the HSS, to obtain the current resident PLMN of the UE and The CSG subscription information of the PLMN that is equivalent to the PLMN.

Embodiment 2

Based on the same inventive concept as the above method, an embodiment of the present invention further provides an information management server. As shown in FIG. 2, the information management server includes:

The determining module 11 is configured to determine that the CSG subscription information of the closed subscription group corresponding to the user equipment UE changes;

The sending module 12 is configured to send the changed CSG subscription information to the core network device corresponding to the UE, and the core network device uses the changed CSG subscription information to update the saved UE that is currently resident in the public. CSG subscription information of the land mobile network PLMN and/or CSG subscription information of the equivalent PLMN of the currently camped PLMN.

In the embodiment of the present invention, the sending module 12 specifically includes:

The determining sub-module 121 is configured to determine whether the CSG subscription information in the equivalent PLMN list of the currently camped PLMN of the UE is changed, and the sending sub-module 122 is configured to: when the judgment result is yes , will change the CSG The subscription information is sent to the core network device corresponding to the UE.

In the embodiment of the present invention, the sending module 12 further includes a maintenance sub-module 123, and the maintenance sub-module 123 is configured to maintain an equivalent PLMN list that the UE currently camps on the PLMN and the currently camped PLMN.

The determining sub-module 121 is configured to determine, by using the maintained current PLMN of the UE and the equivalent PLMN list of the currently camped PLMN, whether the UE is currently camping on the PLMN or the currently camping PLMN. The CSG subscription information in the equivalent PLMN list changes.

The maintenance sub-module 123 is configured to receive, by the core network device, a message for requesting CSG subscription information of the UE, and determine whether the message carries an equivalent PLMN list that the UE currently camps on;

If yes, and the previously stored PLMN of the UE and the equivalent PLMN list of the currently camped PLMN are not previously stored, obtaining an equivalent PLMN list of the currently camped PLMN of the UE from the message, and storing The UE currently camps on the PLMN and the list of equivalent PLMNs of the currently camped PLMN; when the previously stored PLMN of the UE and the list of equivalent PLMNs of the currently camped PLMN are previously stored, the previously stored location is deleted. Determining, by the UE, an equivalent PLMN list of the PLMN and the currently camped PLMN, and obtaining an equivalent PLMN list of the currently camped PLMN of the UE from the message, and storing the currently camped PLMN of the UE and Obtaining an equivalent PLMN list of the currently resident PLMN;

If no, and previously stored with the UE currently camping PLMN and the current resident PLMN's equivalent PLMN list, deleting the previously stored UE current station Leave a list of equivalent PLMNs for the PLMN.

The sending sub-module 122 is further configured to: after receiving the message from the core network device for requesting the CSG subscription information of the UE, the CSG subscription information that the UE currently camps on the PLMN and the current resident The CSG subscription information of the PLMN's equivalent PLMN is sent to the core network device.

In the embodiment of the present invention, the information management server is specifically: a home subscriber server HSS; or a closed subscriber group subscription server CSS; the core network equipment is specifically: a mobility management entity MME; or, a service GPRS support node SGSN .

Wherein, the modules of the device of the present invention may be integrated or integrated. The above modules can be combined into one module, or can be further split into multiple sub-modules.

Embodiment 3

Based on the same inventive concept as the foregoing method, the core network device is also provided in the embodiment of the present invention. As shown in FIG. 3, the core network device includes:

The receiving module 21 is configured to receive the changed closed subscription group CSG subscription information corresponding to the user equipment UE from the information management server;

The management module 22 is configured to update the CSG subscription information of the public land mobile network PLMN currently camped by the UE and/or the CSG subscription of the equivalent PLMN of the currently camped PLMN by using the changed CSG subscription information. information.

The management module 22 is specifically configured to determine whether the CSG subscription information in the equivalent PLMN of the UE currently camping on the PLMN and/or the currently camped PLMN is modified; if yes, using the changed The CSG subscription information updates the CSG subscription information of the currently camped PLMN of the UE and/or the currently resident PLMN. The CSG subscription information of the equivalent PLMN; if not, discarding the received changed CSG subscription information.

The management module 22 is further configured to: when the CSG subscription information of the UE currently camping on the PLMN changes, use the changed CSG subscription information to update the CSG subscription information of the currently camped PLMN that is saved by the UE; and / or,

When the CSG subscription information of the equivalent PLMN currently camping on the PLMN changes, the changed CSG subscription information is used to update the CSG subscription information of the equivalent PLMN of the currently camped PLMN.

In the embodiment of the present invention, the information management server is specifically: a home subscriber server HSS; or a closed subscriber group subscription server CSS; the core network equipment is specifically: a mobility management entity MME; or, a service GPRS support node SGSN When the information management server is a CSS, the core network device further includes:

The sending module 23 is configured to send, to the CSS, a message for requesting the CSG subscription information of the UE, where the message carries an equivalent PLMN list that the UE currently camps on the PLMN;

The receiving module 21 is further configured to receive CSG subscription information of the PLMN currently hosted by the UE from the CSS, and CSG subscription information of the equivalent PLMN of the currently camped PLMN.

The sending module 23 is further configured to: when the UE accesses the CSG cell, receive an attach request message or a location update request message from the UE; and when according to the tracking area identifier TAI of the currently camped cell of the UE Determining the current station of the UE with an International Mobile Subscriber Identity (IMSI) and an equivalent list of PLMNs stored in the core network device When the roaming network is left and the CSS is deployed in the network, a message for requesting the CSG subscription information of the UE is sent to the CSS.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is a better implementation. the way. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for making a A computer device (which may be a personal computer, server, or network device, etc.) performs the methods described in various embodiments of the present invention.

A person skilled in the art can understand that the drawings are only a schematic diagram of a preferred embodiment, and the modules or processes in the drawings are not necessarily required to implement the invention.

Those skilled in the art can understand that the modules in the apparatus in the embodiment may be distributed in the apparatus of the embodiment according to the description of the embodiment, or may be correspondingly changed in one or more apparatuses different from the embodiment. The modules of the above embodiments may be combined into one module, or may be further split into multiple sub-modules.

The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments. The above disclosure is only a few specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

Claims

Rights request

A method for transmitting CSG subscription information of a closed subscriber group, which is characterized in that:

The information management server determines that the CSG subscription information corresponding to the user equipment UE changes;

The information management server sends the changed CSG subscription information to the core network device corresponding to the UE, and the core network device uses the changed CSG subscription information to update the saved UE that currently resides in the public land. CSG subscription information of the mobile network PLMN and/or CSG subscription information of the equivalent PLMN of the currently camped PLMN.

2. The method according to claim 1, wherein the information management server sends the changed CSG subscription information to the core network device corresponding to the UE, including:

Determining, by the information management server, whether the CSG subscription information in the list of equivalent PLMNs of the currently camped PLMN or the currently camped PLMN changes; if yes, the information management server changes the changed The CSG subscription information is sent to the core network device corresponding to the UE.

The method of claim 2, wherein the information management server determines whether the CSG subscription information in the list of equivalent PLMNs in which the UE currently camps on the PLMN or the currently camped PLMN changes. Includes:

The information management server maintains that the UE currently camps on the PLMN and the current An equivalent PLMN list that resides in the PLMN;

Determining, by the maintained information of the currently camped PLMN of the UE and the equivalent PLMN list of the currently camped PLMN, whether the UE is currently camped on the PLMN or the equivalent PLMN list of the currently camped PLMN. The CSG signing information has changed.

The method of claim 3, wherein the information management server maintains the list of equivalent PLMNs that the UE currently camps on and the currently resident PLMN, including:

The information management server receives a message from the core network device for requesting CSG subscription information of the UE, and determines whether the message carries an equivalent PLMN list that the UE currently camps on;

If yes, and when the information management server does not previously store the current PLMN of the UE and the equivalent PLMN list of the currently camped PLMN, the information management server obtains the current UE from the message. Hosting a list of equivalent PLMNs of the PLMN, and storing the list of equivalent PLMNs of the currently camped PLMN of the UE and the currently camped PLMN; when the information management server previously stores the currently camped PLMN of the UE and the When the current PLMN list of the PLMN is currently camped on, the information management server deletes the previously stored PLMN of the UE and the equivalent PLMN list of the currently camped PLMN, and obtains the UE from the message. An equivalent PLMN list currently camping on the PLMN, and storing an equivalent PLMN list of the currently camped PLMN of the UE and the obtained currently camped PLMN;

If not, and when the information management server previously stores the UE currently camped When the PLMN and the equivalent PLMN list of the currently camped PLMN, the information management server deletes the previously stored equivalent PLMN list of the PLMN currently camped on by the UE.

The method of claim 4, wherein the information management server receives a message from the core network device for requesting CSG subscription information of the UE, and further includes:

The information management server sends the CSG subscription information of the PLMN currently camped by the UE and the CSG subscription information of the equivalent PLMN of the currently camped PLMN to the core network device.

6. The method of any of claims 1-5, wherein

The information management server is specifically: a home subscriber server HSS; or, a closed subscriber group subscription server CSS;

The core network device is specifically: a mobility management entity MME; or a monthly GPRS support node SGSN.

7. A method for transmitting CSG subscription information of a closed subscription subscriber group, characterized in that:

8. The method of claim 7, wherein the core network device is Updating the CSG subscription information of the currently camped PLMN of the UE and/or the CSG subscription information of the equivalent PLMN of the currently resident PLMN by using the changed CSG subscription information, including:

Determining, by the core network device, whether the CSG subscription information in the equivalent PLMN of the currently camped PLMN and/or the currently camped PLMN is modified;

If yes, the core network device updates the CSG subscription information of the currently camped PLMN of the UE and/or the CSG subscription information of the equivalent PLMN of the currently camped PLMN by using the changed CSG subscription information;

If not, the core network device discards the received CSG subscription letter received

The method according to claim 7 or 8, wherein the core network device updates the CSG subscription information and/or the location of the currently camped PLMN of the UE that is saved by using the changed CSG subscription information. The CSG subscription information of the equivalent PLMN currently camping on the PLMN, including:

When the CSG subscription information of the UE currently camping on the PLMN changes, the core network device uses the changed CSG subscription information to update the CSG subscription information of the currently camped PLMN that is saved by the UE; and/or,

When the CSG subscription information of the equivalent PLMN currently camping on the PLMN changes, the core network device updates the CSG subscription of the equivalent PLMN of the currently camped PLMN saved by using the changed CSG subscription information. information.

The method according to claim 9, wherein the information management server is specifically: a home subscriber server HSS; or, a closed subscriber group subscription server The CSS; the core network device is specifically: a mobility management entity MME; or, a serving GPRS support node SGSN;

When the information management server is a CSS, the method further includes:

Sending, by the core network device, a message for requesting CSG subscription information of the UE to the CSS, where the message carries an equivalent PLMN list that the UE currently camps on the PLMN; and receiving the UE from the CSS The CSG subscription information of the current PLMN and the CSG subscription information of the equivalent PLMN of the currently camped PLMN.

The method of claim 10, wherein the core network device sends a message for requesting CSG subscription information of the UE to the CSS, and further includes:

When the UE accesses the CSG cell, the core network device receives an attach request message or a location update request message from the UE;

Determining that the UE currently camps on the roaming network and deploys in the network according to the tracking area identifier TAI and the international mobile subscriber identity IMSI of the currently camped cell of the UE and the equivalent PLMN list saved in the core network device. When the CSS is used, the core network device sends a message to the CSS for requesting CSG subscription information of the UE.

12. An information management server, comprising:

a sending module, configured to send the changed CSG subscription information to the core network device corresponding to the UE, where the core network device uses the changed CSG subscription information to update the saved UE that currently resides in the public land CSG signing for mobile network PLMN About information and/or CSG subscription information of the equivalent PLMN currently camping on the PLMN.

The information management server according to claim 12, wherein the sending module specifically includes:

a determining sub-module, configured to determine whether the CSG subscription information in the equivalent PLMN list of the currently camped PLMN or the currently camped PLMN changes; the sending submodule, when the judgment result is yes, The changed CSG subscription information is sent to the core network device corresponding to the UE.

The information management server according to claim 13, wherein the sending module further comprises a maintenance submodule;

The maintenance submodule is configured to maintain an equivalent PLMN list that the UE currently camps on the PLMN and the currently camped PLMN;

The determining sub-module is specifically configured to determine, by using the maintained current PLMN of the UE and the equivalent PLMN list of the currently camped PLMN, whether the UE is currently camping on the PLMN or the currently camping PLMN, and the like. The CSG subscription information in the price PLMN list changes.

The information management server according to claim 14, wherein the maintenance submodule is specifically configured to receive a request from the core network device for requesting the

a message of the CSG subscription information of the UE, and determining whether the message carries an equivalent PLMN list in which the UE currently camps on the PLMN;

If yes, and the previously stored PLMN of the UE and the equivalent PLMN list of the currently camped PLMN are not previously stored, obtaining an equivalent PLMN list of the currently camped PLMN of the UE from the message, and storing The UE currently camps on the PLMN to And the equivalent PLMN list of the currently camped PLMN; when the UE currently camping PLMN and the equivalent PLMN list of the currently camped PLMN are previously stored, deleting the previously stored UE currently camping on the PLMN and Obtaining an equivalent PLMN list of the current PLMN, and obtaining an equivalent PLMN list of the PLMN currently camped by the UE from the message, and storing the currently camped PLMN of the UE and obtaining the current resident a list of equivalent PLMNs for PLMN;

If no, and the previously stored PLMN list of the currently camped PLMN and the current resident PLMN are stored, the previously stored equivalent PLMN list of the currently camped PLMN of the UE is deleted.

The information management server according to claim 15, wherein the sending submodule is further configured to: after receiving a message from the core network device for requesting CSG subscription information of the UE, The CSG subscription information that the UE currently camps on the PLMN and the CSG subscription information of the equivalent PLMN of the currently camped PLMN are sent to the core network device.

The information management server according to any one of claims 12 to 16, characterized in that

18. A core network device, comprising:

a receiving module, configured to receive a user equipment UE corresponding to the information management server Changed contracted subscriber group CSG subscription information;

a management module, configured to update, by using the changed CSG subscription information, CSG subscription information of the public land mobile network PLMN currently camped by the UE and/or CSG subscription information of the equivalent PLMN of the currently camped PLMN .

19. The core network device of claim 18, wherein

The management module is specifically configured to determine whether the CSG subscription information in the equivalent PLMN of the currently camped PLMN and/or the currently camped PLMN is modified; if yes, the changed CSG is utilized. The subscription information updates the CSG subscription information of the currently camped PLMN of the UE and/or the CSG subscription information of the equivalent PLMN of the currently camped PLMN, and if not, discards the received changed CSG subscription. information.

The core network device according to claim 18 or 19, wherein the management module is further configured to use the changed CSG when the CSG subscription information of the currently camped PLMN of the UE changes. The subscription information updates the CSG subscription information of the PLMN currently reserved by the UE that is saved by itself; and/or,

The core network device according to claim 20, wherein the information management server is specifically: a home subscriber server HSS; or a closed subscriber group subscription server CSS; the core network equipment is specifically: mobility a management entity MME; or, a serving GPRS support node SGSN; when the information management server is a CSS, The core network device further includes:

a sending module, configured to send, to the CSS, a message for requesting CSG subscription information of the UE, where the message carries an equivalent PLMN list that the UE currently camps on the PLMN;

The receiving module is further configured to receive CSG subscription information of the PLMN currently camped by the UE from the CSS and CSG subscription information of the equivalent PLMN of the currently camped PLMN.

22. The core network device of claim 21, wherein

The sending module is further configured to: when the UE accesses the CSG cell, receive an attach request message or a location update request message from the UE; and when according to the tracking area identifier TAI of the currently camped cell of the UE, The international mobile subscriber identity IMSI and the list of equivalent PLMNs stored in the core network device determine that the UE currently resides in the roaming network, and when the CSS is deployed in the network, send the CSS to request the UE Message for CSG signing information.