CN102131203A - Abnormal network exit method of home base station - Google Patents

Abstract

The invention discloses a method for abnormal Femto network exit. The method comprises the step that: one of the predetermined network elements sends a message to the other predetermined network elements, wherein the predetermined network element at least comprises one of a Femto access gateway (Femto ASG), a security gateway (SeGW), an authentication authorization accounting (AAA) server, a self-organization network (SON) server and a Femto management system. By the invention, the problem that various errors might appear in the absence of a complete abnormal network exit flow in the relevant technology is solved, the network exit process is perfected and the errors caused by Femto network exit are reduced.

Description

Abnormal network exit method of home base station

technical field

The present invention relates to the field of communications, in particular to a method for ungraceful network exit of a home base station.

Background technique

In order to provide mobile users with a higher service rate, reduce the cost of using high-speed services, reduce the investment of operators in network deployment, and at the same time, in order to make up for the lack of coverage of existing distributed cellular wireless communication systems, usually in the existing Femto base stations (also referred to as femto base stations, ie, Femto or WFAP) are deployed in a communication network as a supplement to macro base stations. The femto base station is generally installed and used in places such as homes and office areas. The home base station is a small, low-power base station, which has the advantages of practicality, convenience, and low power output.

Figure 1 is a schematic diagram of a network architecture after deploying a home base station according to the prior art. Access Service Network, referred to as MacroASN), core network (Connection Service Network, referred to as CSN), among them, Macro ASN includes: macro base station (Base Station, referred to as BS) and access network gateway (ASN-GW); CSN includes : Authentication, Authorization and Accounting (Authentication, Authorization and Accounting, referred to as AAA) server, Home Agent (HomeAgent, referred to as HA). The lower part of the figure is the newly added network elements after the deployment of the home base station, including: the home base station access network (Femto ASN), and the home base station core network. Among them, the home base station core network is the home base station network service provider (Femto Network elements provided by NSP). Femto ASN includes: Home Base Station Access Gateway (Femto-GW, or FeGW for short), Self Organization Network Server (Self Organization Network Server, SON Server for short), Security Gateway (SeGW for short); the network in Femto NSP Elements include: femtocell management system (WiMAXFemto Access Point Mgmt System, referred to as WFAP Mgmt System), femtocell AAA server, femtocell bootstrap server (WFAP BootstrapServer). It should be noted that, hereinafter, WFAP and Femto have the same meaning, and both refer to home base stations.

In the above-mentioned network architecture after the home base station is deployed, since the home base station accesses the home base station network through the public network, the secure tunnel (SecureTunnel) between the SeGW and the home base station ensures the security of the home base station accessing the home base station network through the public network . Femto-GW is used as the access gateway of the home base station. They have data plane and control plane channels. After the home base station is successfully initialized, when providing services for the terminal, the control signaling and data between the terminal and the CSN must be forwarded through the Femto-GW . SON Server is mainly used for automatic configuration of MAC/PHY parameters, automatic optimization, and self-fault detection and recovery of femtocells. WFAP-AAA is mainly used to authenticate a femtocell as a legal subscriber of the WFAP-NSP. WFAP-Mgmt System provides some upper layer configuration parameters except MAC/PHY for the home base station.

Fig. 2 is a flow chart of femtocell initialization according to related technologies, including the following steps:

There are two types of parameters pre-configured on the Femtocell: parameters that have nothing to do with the operator, for example, the trust certificate (WFAP-Credentials) of the Femtocell; parameters related to the operator, such as the Femtocell bootstrap server provided by the operator (Bootstrap Server) fully qualified domain name (Fully Qualified Domain Name, referred to as FQDN). When the Femtocell is connected to the network, it must discover the bootstrap server and download initial parameters from the bootstrap server. Fig. 2 is a flow chart of home base station initialization according to related technologies. The detailed process of home base station initialization includes the following steps:

Step 1, the home base station is connected to the broadband network and bootstrapped after power-on;

Step 2, the home base station obtains its IP address (public network) through the public network; if the home base station is not pre-configured with the FQDN of the bootstrap server, this process may also obtain the FQDN of the bootstrap server at the same time;

Step 3, if the home base station only has the FQDN of the bootstrap server but does not have the IP address of the bootstrap server, the home base station needs to obtain the IP address of the bootstrap server through a Domain Name System (DNS) process.

Step 4, the femtocell establishes a secure connection with the bootstrap server through the pre-configured security certificate;

Step 5, the femtocell connects to the bootstrap server and requests initial configuration information. The Femtocell provides its IP address and location information (for example, GPS information, etc.) to the bootstrap server, and the bootstrap server selects a suitable SeGW according to the information provided by the Femtocell. The bootstrap server provides the IP address of the SeGW to the Femtocell, and also provides the FQDN of the management server WFAP Mgmt System;

Step 6, the home base station establishes a secure tunnel with the SeGW (the SeGW assigns an intranet IP address to the home base station), and communicates with the Femto-AAA through the SeGW, and the Femto-AAA completes the authentication of the home base station, that is, the The femtocell is a legal user of FemtoNSP;

Step 7, Femtocell obtains the IP address of WFAP Mgmt System (also known as Management Server) through DNS;

Step 8, the home base station is connected to the WFAP Mgmt System, and the home base station sends local information to the management server, including: WFAP's IP address, software and hardware version, location information, etc. Based on these local information, the management server provides the configuration information of the high layer (above the MAC/PHY layer) of the home base station, and the information includes the IP address or FQDN of the SON server;

Step 9, if FQDN is provided in step 8, the home base station also needs to obtain the IP address of the SON server through DNS;

Step 10, the home base station is connected to the SON server, and provides local information to the SON server, including location information of the home base station. The SON server performs location authentication on the home base station according to the location information of the home base station; only the home base station that passes the location authentication can transmit wireless signals in a certain frequency band or frequency range. The SON server will also provide MAC/PHY layer configuration parameters to the home base station.

Step 11, the home base station registers on the Femto-GW; including establishing a data channel between the home base station and the Femto-GW.

After the above steps, the home base station enters the working state and can provide services for the terminals within its coverage. In short, the home base station initialization process refers to a series of processes in which the home base station is connected to a broadband connection (for example, DSL, etc.), powered on, passed authentication, and able to provide services to users.

It can be seen from the initialization process of the home base station that after the initialization of the home base station is completed, a series of network elements in the network maintain the information of the home base station. For example, in step 6, the femto base station and the security gateway establish a secure tunnel, and then interact with Femto-AAA through the secure tunnel, and pass authentication, so Femto-AAA maintains information about a femto base station that has passed authentication; in step 8 , the home base station interacts with the Mgmt System to obtain upper-layer configuration information and SON server information, so the Mgmt System also obtains the information of the home base station; in step 10, the home base station interacts with the SON Server to obtain information such as MAC/PHY/RF, At the same time, the SON server also obtains the information of the home base station; in step 11, a data channel is established between the home base station and the Femto-GW, so the Femto-GW also maintains the information of the home base station.

It can be seen from the above that during the initialization (or registration) process of the home base station, the network elements of the management plane (SON Server, Mgmt System) and the network elements of the control plane (SeGW, FeGW, Femto-AAA) obtain the information of the home base station , after the Femtocell is registered, it is necessary to maintain some resources or information related to the Femtocell, or to perform some operations related to the Femtocell, as follows:

SON Server: maintain the home base station and the base station list information of the home base station as a neighbor cell, and optimize the neighbor list of these base stations; perform wireless parameters on the home base station or base stations affected by the home base station optimization;

Mgmt Syteme: home base station management system. Maintain the configuration information (such as CSG Info) and updates of the base station family;

SeGW: Security Gateway. Maintain a secure tunnel between the SeGW and the Femtocell;

Femto-AAA: maintain femto base station status or billing information, etc.;

FeGW: maintain the context information when the base station is registered.

It can be seen that, after the Femtocell is connected to the network and successfully registered, the above network elements need to maintain some resources and information related to the Femtocell, as well as some related actions. If for some reason, the home base station suddenly loses contact with the network and cannot be restored normally for a long time, then these network elements on the network side, including management plane network elements (SON Server, MgmtSystem), control plane network elements (FeGW, SeGW, Femto -AAA), it is necessary to take correct actions, such as deleting resources related to the home base station, deleting or updating the context of the home base station, and dealing with changes in wireless parameters brought about by the home base station that has withdrawn from the network.

When the Femtocell disconnects from the network abnormally, the network elements mentioned above should be informed that the Femtocell has disconnected from the network, otherwise the following possible errors will occur:

The SON server maintains the information of the neighboring cell list of the Femtocell in the network. If the Femtocell exits the network abnormally and fails to notify the SON server in time, the neighboring cell list in the network will be incorrect, which will affect the handover performance. The SON server is optimizing some MAC/PHY/RF parameters. If the Femtocell fails to notify the SON server in time after it disconnects from the network abnormally, it may cause an error in the parameter optimization process.

The Mgmt System is responsible for maintaining and updating the CSG configuration information of the home base station. If the home base station is disconnected from the network abnormally, and the Mgmt System is not notified in time, the Mgmt System will also actively update the configuration information of the home base station that has withdrawn from the network, such as CSG Configuration information, etc. There is a security tunnel between the SeGW and the home base station. If the home base station is disconnected from the network abnormally and the SeGW is not notified in time, the security tunnel between the SeGW and the home base station will not be removed, resulting in waste of resources. In addition, the Femto-AAA should also be notified preferably, so as to obtain the real-time status of the Femto base station or perform related processing on billing.

However, the related art does not provide a process for abnormal network withdrawal of the home base station. That is, it does not provide which network elements can trigger the abnormal network exit process of the Femtocell. In the prior art, if the home base station disconnects abnormally, resources will be wasted in the network, and various errors may occur.

Contents of the invention

The main purpose of the present invention is to provide a method for abnormal network exit of the home base station, so as to at least solve the problems in the above-mentioned related technologies that there is no abnormal network exit process of the home base station, resulting in waste of network resources and possible occurrence of various errors.

In order to achieve the above purpose, according to one aspect of the present invention, a method for abnormal network exit of a home base station is provided.

The method for abnormal network exit of a home base station according to the present invention includes: one of the predetermined network elements sends a message to other predetermined network elements, wherein the predetermined network element includes at least one of the following: home base station access gateway FeGW, security gateway SeGW, authentication Authorized billing server Femto-AAA, self-organizing network server SON Sever, home base station management system Mgmt System.

Through the present invention, after using the network elements in the network (control plane network elements FeGW, SeGW, Femto-AAA, and management network elements SON Server, Mgmt System) to detect the abnormal withdrawal of the home base station, the abnormal home base station can be initiated The logout process solves the problem that various errors may occur due to the lack of a complete abnormal logout process in related technologies, and then improves the logout process and reduces errors caused by the home base station logout process.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

FIG. 1 is a schematic diagram of a network architecture after deploying a femtocell according to related technologies;

Fig. 2 is a flow chart of femtocell initialization according to the related art;

Fig. 3 is a flow chart of FeGW triggering abnormal network exit of a home base station according to an embodiment of the present invention;

Fig. 4 is a flow chart of SeGW triggering abnormal network exit of a home base station according to an embodiment of the present invention;

Fig. 5 is a flow chart of the Femto-AAA-triggered abnormal home base station exiting the network according to an embodiment of the present invention;

Fig. 6 is a flow chart of FeGW triggering home base station exit network according to an embodiment of the present invention;

Fig. 7 is a flow chart of Femto-AAA triggering home base station withdrawal from the network according to an embodiment of the present invention;

Fig. 8 is a flow chart of SON Server triggering the home base station to withdraw from the network according to an embodiment of the present invention;

Fig. 9 is a process of Mgmt System triggering home base station exit network according to an embodiment of the present invention;

Fig. 10 is a flow chart of FeGW triggering abnormal network exit of the home base station under the condition that the FeGW registered by the home base station is the same as the FeGW acting as an AAA Proxy according to an embodiment of the present invention;

Fig. 11 is a flow chart of the abnormal network withdrawal of the home base station triggered by the SeGW when the FeGW registered by the home base station is the same as the FeGW acting as an AAA proxy according to an embodiment of the present invention;

Fig. 12 is a flow chart of Femto-AAA triggering the Femto-AAA to trigger the home base station to exit the network according to an embodiment of the present invention when the FeGW registered by the home base station is the same as the FeGW acting as the AAA proxy.

Detailed ways

Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

In this embodiment, a method for abnormal network exit of a home base station is provided. The method includes: sending a predetermined network element to at least one of the network elements of the management plane and/or at least one of the network elements of the control plane. Network exit information, wherein the predetermined network element is a network element that has learned that the home base station has abnormally exited the network.

The network elements in the network are divided into two parts: control plane network elements and management plane network elements. Among them, the control plane network elements include: Femto-GW (referred to as FeGW), SeGW, Femto-AAA, and the management network elements include: SON Server , Mgmt System. Any network element on the control plane and the management plane can initiate an abnormal home base station exit process after detecting abnormal network exit of the home base station. That is, the network element that detects that the home base station has abnormally withdrawn from the network notifies other network elements in the network that the home base station has abnormally withdrawn from the network, so that other network elements (also including the network that detects that the home base station has abnormally withdrawn from the network) The cell itself) performs corresponding processing for the abnormal network exit of the home base station.

The following describes this embodiment from two aspects of the control plane and the management plane respectively.

control surface

After the network element of the control plane detects that the home base station has abnormally disconnected from the network, it performs at least one of the following processes: Notify other network elements on the control plane, so that other network elements on the control plane (including the detection of abnormal network disconnection of the home base station) network element) to properly deal with the abnormal network exit of the home base station. Since each control plane network element handles the abnormal network exit of the Femtocell differently, the following describes them respectively:

The FeGW's processing of the home base station that is abnormally disconnected from the network includes at least one of the following: deleting the context information of the home base station (the context information further includes R6-F interface information); deleting the data channel with the home base station; deleting the home base station from the home base station The context information of the terminal receiving the service; triggering the abnormal network exit process of the terminal receiving the service from the home base station.

The SeGW's processing of the home base station that has abnormally exited the network includes at least one of the following: the SeGW deletes the context information of the home base station; deletes the security tunnel established with the home base station (the security tunnel can also be deleted by the home base station, where, for example, the security tunnel is IPSec tunnel), since the HNB is abnormally disconnected from the network, at this time, the SeGW can directly delete the context information (for example, security association information) used to establish a secure tunnel with the HNB to release resources; The message of network information is sent to Femto-AAA (for example, the message Accounting-request (stop) to stop the accounting of the home base station).

Femto-AAA's processing of the HNB abnormally exiting the network includes at least one of the following: Femto-AAA updates the status information of the HNB; processing related to HNB charging (for example, stopping the charging of the HNB).

It should be noted that the above-mentioned FeGW triggers the abnormal network exit process of the terminal receiving the service from the home base station, which is consistent with the abnormal network exit process of the terminal triggered by the ASN-GW in the existing NWG protocol.

For the situation where the control plane NE detects that the femtocell is disconnected from the network abnormally, on the one hand, it is not necessary to notify the management plane NE, because the control plane and the management plane NE may have their own detection mechanism, so the control plane NE is not required Notify the management plane NE; the other is that the control plane NE also notifies the management plane NE at the same time, for example, by reporting alarm information to the management plane NE, the management plane NE is notified that the femtocell has abnormally disconnected from the network.

management plane

After the network element of the management plane detects that the home base station has abnormally disconnected from the network, it will perform at least one of the following processes: notify other network elements of the management plane so that other network elements of the management plane can handle the abnormal network disconnection of the home base station; send Alarm information; update the saved state of the femtocell. Since each network element on the management plane handles the network withdrawal of the Femtocell differently, it is described as follows:

The SON Server's processing of the home base station's withdrawal from the network may include at least one of the following: the SON Server updates the neighbor list of the home base station's neighbor base station (that is, the base station that contains the home base station in the neighbor list); deletes the home base station information ; Updating the state information of the home base station; sending alarm information.

The Mgmt System's process of withdrawing the home base station may include at least one of the following: updating the neighbor list of the home base station's neighbor base station (that is, the base station that contains the home base station in the neighbor list); the Mgmt System stops actively updating the home base station. The configuration information of the base station (such as CSG member information), for example, does not send the configuration information of the home base station and the update of the configuration information to the home base station; Mgmt System deletes the home base station information; Mgmt System updates the home base station Status information; send alarm information.

Wherein, the updating of the neighbor list includes at least one of the following: deleting the HNB from the neighbor list, or updating the state of the HNB from the neighbor list.

For the detection situation of the management plane NE, on the one hand, it is not necessary to notify the control plane NE, because the control plane and the management plane NE may have independent detection mechanisms, so there is no need for the management plane NE to notify the control plane NE; One is that the network element of the management plane also notifies the network element of the control plane at the same time.

The following describes the processing after the control plane network element and the management plane network element detect abnormal network exit of the home base station through different scenarios.

Scenario 1: The FeGW triggers the femtocell to disconnect from the network abnormally.

For the FeGW-triggered abnormal home base station exit network (for example, through the handshake mechanism between the FeGW and the home base station to detect the abnormal home base station exit network), the FeGW notifies the SeGW to process the home base station exit network, and the SeGW notifies the Femto-AAA Perform logout processing.

Fig. 3 is a flow chart of FeGW triggering abnormal network exit of a home base station according to an embodiment of the present invention. As shown in Fig. 3, the process includes the following steps:

The FeGW notifies the SeGW to perform the network withdrawal process of the base station, which includes the following two steps:

In step S301, the FeGW detects that the home base station has exited the network abnormally, and sends a request message carrying the exit network information of the home base station to the SeGW (for example, using the message WFAPNetExit Request), wherein the sent message carries at least one of the following: exit The home base station identifier of the network (for example, the IP address of the home base station, the MAC address, or the identification defined by IEEE, etc.), the type of the home base station's withdrawal from the network, and the reason for the withdrawal of the home base station from the network.

Preferably, in this step, when the FeGW detects that the Femtocell has disconnected from the network abnormally, the FeGW will also perform the aforementioned process of disconnecting the Femtocell from the network.

In step S302, the SeGW sends a response message (for example, using the message WFAP NetExitResponse) to the FeGW after receiving the HNB network exit information sent by the FeGW.

In this step, the SeGW also needs to delete the security tunnel (eg, IPSec tunnel) between it and the HNB. The SeGW also needs to notify the Femto-AAA to deal with the abnormal disconnection of the HNB. The process consists of the following two steps:

Step S303, after SeGW receives the Femto-AAA message carrying the home base station's network withdrawal information sent by FeGW (for example, using the message Account Request (Stop)). Wherein, the message carries at least one of the following: the identifier of the home base station that has withdrawn from the network, the type of the home base station's withdrawal from the network, and the reason for the withdrawal of the home base station from the network.

Step S304, after the Femto-AAA receives the HNB network withdrawal information sent by the SeGW, the Femto-AAA responds to the SeGW with a response message of the HNB network withdrawal (for example, using the message Account Response (Stop)).

Among the above steps, step S303 occurs after step S301, and there is no time sequence between step S303 and step S302.

Preferably, when the FeGW detects that the Femtocell is disconnected from the network abnormally, the FeGW will also perform the above-mentioned logout process of the Femtocell. It should be noted that the FeGW's process of denetting the Femtocell occurs after the FeGW detects that the Femtocell is abnormally decommissioning, and there is no time sequence with steps S301, S302, and S303. For example, it can occur in step 301 Before, before step 302, or after step 302.

Preferably, after the SeGW receives the message sent by the FeGW, the SeGW will also perform the aforesaid de-network processing of the home base station.

Preferably, after the Femto-AAA receives the message sent by the SeGW, the Femto-AAA will also perform the aforementioned home base station exit processing.

Scenario 2: The SeGW triggers the Femtocell to disconnect from the network abnormally.

For the abnormal network exit of the Femtocell triggered by the SeGW (for example, the expiration of the security tunnel between the SeGW and the Femtocell triggers the abnormal network exit of the Femtocell), the SeGW shall notify the FeGW and Femto-AAA respectively, so that they can perform the exit of the Femtocell web processing. Fig. 4 is a flow chart of the SeGW triggering the home base station to exit the network abnormally according to an embodiment of the present invention. As shown in the figure, the process includes the following steps:

Wherein, the SeGW notifies the FeGW to deal with the abnormal disconnection of the HNB. The process consists of the following two steps:

Step S401, the SeGW sends a request message carrying home base station exit information to the FeGW (for example, using the message WFAP NetExit Request), wherein the message carries at least one of the following: the identity of the home base station exiting the network, the identity of the home base station exiting the network Type, the reason for Femtocell withdrawal from the network.

Step S402, after receiving the information sent by the SeGW, the FeGW sends a response message to the SeGW (for example, using the message WFAP NetExit Response).

The SeGW notifies the Femto-AAA to deal with the abnormal disconnection of the femtocell. The process consists of the following two steps:

Step S403, SeGW sends to Femto-AAA a message carrying information about the withdrawal of the home base station (for example, using the message Account Request (Stop)), wherein the message carries at least one of the following: the identification of the home base station that has withdrawn from the network, The type of Femtocell withdrawal from the network, and the reason for Femtocell withdrawal from the network.

Step S404, after the Femto-AAA receives the home base station's network withdrawal information sent by the SeGW, the Femto-AAA responds to the SeGW with a home network withdrawal response message (for example, using the message Account Response (Stop)).

In the above steps, SeGW notifies FeGW and Femto-AAA that there is no sequence; that is, step S401 and step S403 have no sequence in time (including that they can occur in parallel), and step S402 and step S404 are respectively used as step S401 and step S403. S403 response.

When the SeGW detects that the home base station has disconnected from the network abnormally, the SeGW will also perform the aforementioned network disconnection processing of the home base station.

After the FeGW receives the message sent by the SeGW, the FeGW will also perform the above-mentioned withdrawal processing of the home base station.

After the Femto-AAA receives the message sent by the SeGW, the Femto-AAA will also perform the above-mentioned withdrawal processing of the home base station.

Scenario 3: Femto-AAA triggers the Femto base station to disconnect from the network abnormally

For Femto-AAA triggered abnormal HNB network exit (for example, Femto-AAA discovers that WFAP subscription information has expired), the SeGW and FeGW should be notified, so that they can handle the HNB abnormal network exit. Fig. 5 is a flow chart of Femto-AAA-triggered abnormal home base station exiting the network according to an embodiment of the present invention. As shown in Fig. 5, the process includes the following steps:

The Femto-AAA notifies the SeGW of the home base station to withdraw from the network, including the following two steps:

Step S501, Femto-AAA sends a link disconnection message to SeGW (when using the Radius protocol, it is a Discconnect Request message; when using the Diameter protocol, it is an Abort-Session-Request (ASR) Command), wherein the message carries the following At least one of: the identifier of the home base station that has withdrawn from the network, the type of network withdrawal of the home base station, and the reason for the withdrawal of the home base station.

In step S502, the SeGW sends a response message to the Femto-AAA link disconnection request (when using the Radius protocol, it is a Discconnect ACK or Disconnect NACK message; when using the Diameter protocol, it is an Abort-Session-Answer (ASR) Command).

After SeGW receives the link disconnection message sent by Femto-AAA, the follow-up process is consistent with the process of abnormal network exit of the Femtocell triggered by SeGW, that is, steps S503 to S506 are the same as steps S401 to S404 in scenario 2, here No more details, wherein among the above steps, step S503 occurs after step S501, and there is no time sequence between step S503 and step S502.

In the above description, SeGW sends Femto-AAA home base station exit network information, when SeGW and Femto-AAA adopt RADIUS protocol, use the accounting request message (Accounting-Request/ Stop); when the Diameter protocol is used between SeGW and Femto-AAA, the accounting request message defined by it (Accounting-Request, referred to as ACR) and/or session termination request message (Session-Termination-Request, referred to as STR), where ACR is used to request the stop of accounting, and STR is used to request the termination of the session. Of course, other messages may also be used to indicate that the home base station has withdrawn from the network.

In the above description, Femto-AAA sends the home base station exit network response message to SeGW. When the Radius protocol is used, it is Accounting-Response (stop), when the Diameter protocol is used, it is Session-Termination-Response (STR) Command and/or Accounting-Response (ACR) Command. Of course, other messages may also be used to indicate the HNB network withdrawal response.

The above three scenarios are the interaction between the control plane network elements and the network exit process after the control plane network element detects the abnormal network exit of the femtocell. Further, the control plane NE also needs to notify the management plane network element of the home base station withdrawal from the network, so that the management plane network element can perform corresponding withdrawal processing, including Femto-AAA or FeGW can send the home base station withdrawal network element to the management plane network element information.

For FeGW-triggered femtocell network exit (including normal network exit and abnormal network exit), FeGW needs to notify the network elements of the management plane in addition to the network elements of the control plane (as described in scenario 1); The process of the network element is: FeGW sends home base station network withdrawal information to at least one of SONServer and Mgmt System, for example, notifies the management plane network element by sending an alarm. Wherein, if the FeGW does not directly trigger the FeGW to exit the network, it is triggered after the FeGW receives information about the FeGW exiting the network sent by other control planes. The FeGW notifies the network element of the management plane to handle the withdrawal of the Femtocell from the network, which can be performed in one of the following ways:

Method 1: FeGW sends the network exit information of the home base station to one of the SON Server and Mgmt System, and one of the SON Server and Mgmt System that receives the network exit information of the home base station sent by the FeGW sends the network exit information of the home base station to the other .

Method 2: FeGW sends the network withdrawal information of the home base station to the SON Server and the Mgmt System.

Fig. 6 is a flow chart of FeGW triggering a home base station to withdraw from the network according to an embodiment of the present invention. An example of notifying the management plane network element when the FeGW triggers the home base station to withdraw from the network will be described below with reference to Fig. 6 . Wherein, the triggering of the FeGW occurs after it detects that the FeGW withdraws from the network, or receives the network withdrawal information (including normal or abnormal network withdrawal) of the Femtocell from other network elements (such as SeGW).

As shown in Figure 6, the FeGW notifies the SON Server of the home base station's withdrawal from the network, including the following two steps:

In step S601, the FeGW sends a message to notify the SON Server that the home base station has withdrawn from the network, wherein the message carries at least one of the following: the identifier of the home base station to withdraw from the network, the type of the home base station to withdraw from the network, and the reason for the home base station to withdraw from the network. For example, the FeGW can use the Inform message defined by the TR-069 protocol to notify the SON Server.

In step S602, the SON Server sends back a response message to the FeGW. For example, the SONServer can use the InformResponse message defined in the TR-069 protocol to respond to the FeGW.

SON Server notifies Mgmt System of the home base station's withdrawal from the network, including the following two steps:

Step S603, the SON Server sends a message to notify the Mgmt System that the home base station has withdrawn from the network, wherein the message carries at least one of the following: the identifier of the home base station to withdraw from the network, the type of the home base station to withdraw from the network, and the reason for the home base station to withdraw from the network. For example, the SON Server can use the Inform message defined by the TR-069 protocol to notify the Mgmt System, or use the message defined by the Operation Administration and Maintenance (OAM) system to notify the Mgmt System.

In step S604, the Mgmt System sends back a response message. The Mgmt System can use the InformResponse message defined by the TR-069 protocol to respond to the SON Server, or use the message defined by the OAM system to respond to the SON Server.

Among the above steps, step S603 is after step S601 and has no temporal sequence relationship with step S602.

According to the method described above, the flowcharts for notifying the network elements of the control plane described in FIG. 3 and FIG. 4 can be used in combination with the flowchart 6 for notifying the network elements of the management plane.

For Femto-AAA-triggered femto network exit process (including normal network exit and abnormal network exit), in addition to notifying the network elements of the control plane (described in scenario 3), it is also necessary to notify the network elements of the management plane. The process of notifying the network elements of the management plane is: Femto-AAA sends the home base station withdrawal information to at least one of the SON Server and the Mgmt System, for example, notifies the network elements of the management plane by sending an alarm. Wherein, if the Femto-AAA does not directly trigger the Femto-AAA to directly trigger the Femto-AAA to trigger the Femto-AAA after receiving the Femto-AAA information about the Femto network exit sent by other control planes. Femto-AAA notifies the network element of the management plane to handle the withdrawal of the Femtocell from the network, which can be performed in one of the following ways:

Method 1: Femto-AAA sends home base station withdrawal information to one of SON Server and Mgmt System, and one network element in SON Server and Mgmt System that receives the network withdrawal information sent by Femto-AAA sends home base station to another network element logout information.

Method 2: Femto-AAA sends home base station exit network information to SON Server and Mgmt System.

Fig. 7 is a flow chart of Femto-AAA triggering the home base station to withdraw from the network according to an embodiment of the present invention. An example of notifying the management plane when Femto-AAA triggers the home base station to withdraw from the network will be described below in conjunction with Fig. 7, wherein the Femto-AAA trigger refers to It occurs after it detects that the home base station has withdrawn from the network, or receives network withdrawal information (including normal or abnormal network withdrawal) from the home base station of other network elements.

As shown in Figure 7, Femto-AAA notifies the Mgmt System of the home base station's withdrawal from the network, including the following two steps:

Step S701, Femto-AAA sends a message to notify the Mgmt System that the home base station has withdrawn from the network, wherein the message carries at least one of the following: the identifier of the home base station to withdraw from the network, the type of the home base station to withdraw from the network, and the reason for the home base station to withdraw from the network. Femto-AAA can use the Inform message defined by the TR-069 protocol to notify the Mgmt System.

In step S702, the Mgmt System returns a response message to the Mgmt System. SONServer can use the InformResponse message defined by the TR-069 protocol to respond to Femto-AAA.

Mgmt Systemt notifies SON Server of the home base station withdrawal situation, including the following two steps;

Step S703, the Mgmt System sends a message to notify the SON Server that the home base station has withdrawn from the network, wherein the message carries at least one of the following: the identifier of the home base station to withdraw from the network, the type of the home base station to withdraw from the network, and the reason for the home base station to withdraw from the network.

In step S704, the SON Server returns a response message to the Mgmt System.

In the above S703 and S704, the interaction mode between the SON Server and the Mgmt System is the same as that of steps S603 and S604.

Among the above steps, step S703 is after step S701 and has no temporal sequence relationship with step S702.

According to the method described above, the flowcharts for notifying the network elements of the control plane described in FIG. 4 and FIG. 5 can be used in combination with the flowchart 7 for notifying the network elements of the management plane.

In the above steps, after the network element of the management plane learns that the HNB has withdrawn from the network, it also needs to perform other withdrawal processing of the HNB performed by the network element of the management plane.

When the network element on the management plane detects that the femtocell is disconnected from the network abnormally, at least one of the following conditions exists:

The management plane NE does not send home base station withdrawal information to other network elements (including the control plane network element and other management plane network elements), but only handles its own behavior related to the home base station withdrawal from the network; the management plane network element sends other management plane network elements Send the home base station exit network information so that other management plane network elements can process the home base station exit network; the management plane network element sends the home base station network exit information to the control plane network element.

Wherein, the network element of the management plane may send the home base station exit network information to the network element of the control plane in one of the following ways:

Method 1: The management plane network element sends the Femtocell exit network information to one of the control plane network elements, and the network element receives the Femtocell exit network information and processes according to the aforementioned scenarios 1, 2, and 3 respectively.

Method 2: The management plane network element sends the home base station denetwork information to each network element in the control plane.

Fig. 8 is a flow chart of SON Server triggering the home base station to withdraw from the network according to an embodiment of the present invention. The following describes an example when the SON Server learns that the home base station withdraws from the network and notifies FeGW, wherein, learning refers to detecting that the home base station withdraws from the network, or receiving Obtain network exit information of femtocells from other network elements (including normal or abnormal network exit conditions).

As shown in Figure 8, the SON Server notifies the FeGW of the home base station's withdrawal from the network, including the following two steps:

In step S801, the SON Server sends a message to the FeGW to notify the FeGW to withdraw from the network, wherein the message carries at least one of the following: the identifier of the home base station to withdraw from the network, the type of the home base station to withdraw from the network, and the reason for the home base station to withdraw from the network. It should be noted that Inform in FIG. 8 generally refers to a notification message, which may be an Inform message in TR069, but is not limited thereto.

In step S802, the FeGW sends back a response message to the SON Server. It should be noted that InformResponse in FIG. 8 generally refers to a notification response message, which may be the InformResponse message in TR069, but is not limited thereto.

The FeGW can then perform the denetization processing of the Femtocell in the manner of Scenario 1.

Fig. 9 is the process of Mgmt System triggering home base station exit network according to the embodiment of the present invention. The following describes an example when Mgmt System notifies Femto-AAA of the home base station exit network information. network, or receive network exit information from the home base station of other network elements (including normal or abnormal network exit).

As shown in Figure 9, the Mgmt System notifies Femto-AAA of the Femto-AAA home base station's withdrawal from the network, including the following two steps:

Step S901, the Mgmt System sends a message to Femto-AAA to notify the Femto-AAA of the home base station's withdrawal from the network, wherein the message carries at least one of the following: the identity of the home base station that has withdrawn from the network, the type of the home base station's withdrawal from the network, and the reason for the home base station's withdrawal from the network. It should be noted that, in FIG. 9, Inform generally refers to a notification message, which may be an Inform message in TR069, but is not limited thereto.

Step S902, Femto-AAA sends back a response message to the Mgmt System. It should be noted that the InformResponse in FIG. 9 is a general notification response message, which may be the InformResponse message in TR069, but not earlier than this.

The Femto-AAA can then perform the denetization processing of the Femto base station in the manner of the third scenario.

In the above description, all the network elements that communicate with the management plane, the information sent between them is carried by the management plane protocol, for example, TR069, DOCSIS, SNMP, OMA-DM, etc.

In all the above methods and the embodiments corresponding to all the methods, the interaction between the SeGW and the Femto-AAA may be based on the RADIUS protocol or the Diameter protocol.

If the RADIUS protocol is adopted, the SeGW sends an Accounting-Request/Stop message to the Femto-AAA to notify the WFAP of withdrawing from the network (that is, it is equivalent to the SeGW described above. Send home base station withdrawal information to Femto-AAA); Femto-AAA responds to SeGW with an accounting response (Accounting-Response/Stop) message indicating stop charging, to confirm the withdrawal process of the home base station (that is, equivalent to The Femto-AAA described above sends a corresponding response message to the SeGW).

If the Diameter protocol is adopted, the SeGW sends an Accounting-Request (ACR for short) message and/or a Session-Termination-Request (STR for short) message defined in the protocol to the Femto-AAA to notify the The WFAP network exit processing (that is, the same as the SeGW described above sending the home base station network exit information to Femto-AAA), wherein the above-mentioned ACR message is used to request the stop of charging, and the STR message is used to request the termination of the session; Femto-AAA Then by sending an accounting response (Accounting-Answer, referred to as ACA) message and/or a session termination response message (Session-Termination-Answer, referred to as STA) to the SeGW, to confirm the network exit processing of the home base station (that is, equivalent to The Femto-AAA described above sends a corresponding response message to the SeGW).

The authenticator (Authenticator) of the Femto-AAA can be deployed in the SeGW, so the interaction between the Femto-AAA and the SeGW mentioned above can also be understood as the interaction between the Femto-AAA and the authenticator of the Femto-AAA.

Preferably, in all the above-mentioned methods and the corresponding embodiments of all the methods, the SeGW and the FeGW interact through AAA messages, that is, the messages in the Radius protocol or the messages in the Diameter protocol are used to send home base station withdrawal information and corresponding response messages; Preferably, in the case of using AAA message interaction, the SeGW and FeGW message interaction is the same as the above SeGW and AAA message interaction.

Preferably, in all the above methods and the corresponding embodiments of all the methods, if the SeGW and the FeGW are co-located, the interaction step between the SeGW and the FeGW is removed.

It should be noted that, in all the above-mentioned methods and the corresponding embodiments of all the methods, the interaction between SeGW and Femto-AAA can be performed through the FeGW as AAA Proxy, and the FeGW mentioned in all the above-mentioned methods and the corresponding embodiments of all the methods is the user The registered FeGW, that is, the FeGW registered by the user is different from the FeGW acting as the AAA Proxy agent. Preferably, the interaction between the SeGW and the Femto-AAA is performed through the FeGW as an AAA Proxy. Taking the Account Request/Response message in Radius as an example, SeGW sends Account Request message to FeGW (AAA Proxy), and then FeGW (AAA Proxy) sends Account Request to Femto-AAA; Femto-AAA sends Account Response message to FeGW (AAA Proxy) ), and then FeGW (AAA Proxy) sends Account Response to SeGW.

Preferably, in all the above-mentioned methods and the corresponding embodiments of all the methods, the FeGW registered by WFAP can be the same as the FeGW that plays the role of AAA Proxy between SeGW and Femto-AAA, and the FeGW that is registered with the home base station and plays the role of AAA Proxy The FeGW is the same as the abnormal network exit process of the femtocell.

For the WFAP abnormal network exit process triggered by the FeGW, the FeGW can interact with the SeGW and Femto-AAA respectively to process the WFAP abnormal network exit process. That is, in the aforementioned step S303 of FIG. 3 , the FeGW sends the message to the Femto-AAA, and correspondingly, in the step S304 , the Femto-AAA responds to the FeGW with a response message of the HNB exiting the network. Preferably, the FeGW notifies the SeGW and the Femto-AAA to perform the denetization processing of the HNB, without order. This will be described in detail below with reference to FIG. 10 .

Fig. 10 is a flow chart of FeGW triggering abnormal network exit of a home base station under the condition that the FeGW registered by the home base station is the same as the FeGW acting as an AAA Proxy according to an embodiment of the present invention. The process includes the following steps:

In step S1001, the FeGW detects that the home base station has withdrawn from the network abnormally, and sends a request message carrying the network withdrawal information of the home base station to the SeGW (for example, Account Request (Stop) when using the Radius protocol), wherein the sent message carries At least one of the following: the identifier of the Femtocell that has withdrawn from the network, the type of the Femtocell's withdrawal from the network, and the reason for the withdrawal of the Femtocell.

Preferably, in this step, when the FeGW detects that the Femtocell has disconnected from the network abnormally, the FeGW will also perform the aforementioned process of disconnecting the Femtocell from the network.

In step S1002, the SeGW sends a response message (for example, AccountResponse (Stop) when using the Radius protocol) to the FeGW after receiving the HNB network exit information sent by the FeGW.

In this step, the SeGW also needs to delete the security tunnel (eg, IPSec tunnel) between it and the HNB.

In step S1003, the FeGW sends a message (AAA message is used, and the message Account Request (Stop) is used when the Radius protocol is used) carrying the withdrawal information of the home base station to Femto-AAA. Wherein, the message carries at least one of the following: the identifier of the home base station that has withdrawn from the network, the type of the home base station's withdrawal from the network, and the reason for the withdrawal of the home base station from the network.

Step S1004, after Femto-AAA receives the home base station exit network information sent by FeGW, Femto-AAA responds to FeGW with the response message of home base station exit network (AAA message is used, when the Radius protocol is used, the message Account Response (Stop) ).

Among the above steps, step S1001 and step S1003 have no time sequence.

For the WFAP abnormal logout process triggered by the SeGW, the SeGW interacts with the Femto-AAA while also interacting with the SeGW and the FeGW. Therefore, a separate interaction process between the SeGW and the FeGW is not required. That is, in the aforementioned Figure 4, step S401 and step S402 are removed; in step S403, SeGW sends the message to FeGW (AAA Proxy), and then FeGW (AAA Proxy) sends the corresponding message to Femto-AAA; correspondingly, in In step S404, the Femto-AAA sends the message to the FeGW, and the FeGW sends the corresponding message to the SeGW. In this case, after receiving the message sent by the SeGW, the FeGW performs the network withdrawal processing of the home base station. This will be described in detail below with reference to FIG. 11 .

Fig. 11 is a flow chart of the abnormal network exit of the Femtocell triggered by the SeGW when the FeGW registered by the Femtocell is the same as the FeGW acting as an AAA Proxy according to an embodiment of the present invention. The process includes the following steps:

Step S1101, SeGW sends to FeGW a request message carrying home base station withdrawal information to FeGW (for example, Account Reqest (Stop) when using the Radius protocol), wherein the message carries at least one of the following: the home base station withdrawing from the network Identification, the type of Femtocell withdrawal from the network, and the reason for the Femtocell withdrawal from the network.

Step S1102, FeGW sends to Femto-AAA a message carrying the network withdrawal information of the home base station (for example, Account Request (Stop) when using the Radius protocol), wherein the message carries at least one of the following: the family that has withdrawn from the network Base station ID, type of Femtocell withdrawal from the network, and reason for Femtocell withdrawal from the network.

Step S1103, after the Femto-AAA receives the network exit information of the home base station sent by the FeGW, the Femto-AAA responds to the FeGW with a home network exit response message (for example, Account Response (Stop) when using the Radius protocol).

In step S1104, the FeGW sends a response message (for example, Account Response (Stop) when using the Radius protocol) to the SeGW.

For the WFAP abnormal logout process triggered by the Femto-AAA, the Femto-AAA interacts with the SeGW while interacting with the Femto-AAA and the FeGW at the same time. Therefore, a separate interaction process between the SeGW and the FeGW is not required. That is, in the aforementioned Figure 5, step S503 and step S504 are removed; in step S505, SeGW sends the message to FeGW (AAA Proxy), and then FeGW (AAA Proxy) sends the corresponding message to Femto-AAA; corresponding , in step S506, the Femto-AAA sends the message to the FeGW, and the FeGW sends the corresponding message to the SeGW. In this case, after receiving the message sent by the SeGW, the FeGW performs the network withdrawal processing of the home base station. This will be described in detail below in conjunction with FIG. 12 .

Fig. 12 is a flow chart of Femto-AAA triggering the home base station to withdraw from the network when the FeGW registered by the home base station is the same as the FeGW acting as an AAA Proxy according to an embodiment of the present invention. The process includes the following steps:

Step S1201, Femto-AAA sends a disconnection message to SeGW via FeGW (when using the Radius protocol, it is a Discconnect Request message; when using the Diameter protocol, it is Abort-Session-Request (ASR) Command), wherein the message carries There is at least one of the following: the identifier of the Femtocell that has withdrawn from the network, the type of the Femtocell's withdrawal from the network, and the reason for the Femto's withdrawal from the network.

In step S1202, the SeGW sends a response message to the disconnection request via Femto-AAA (when the Radius protocol is used, it is a Discconnect ACK or Disconnect NACK message; when the Diameter protocol is used, it is an Abort-Session-Answer (ASR) Command).

Step S1203, SeGW sends to FeGW a request message carrying home base station withdrawal information to FeGW (for example, Account Request (Stop) when using the Radius protocol), wherein the message carries at least one of the following: the home base station withdrawing from the network Identification, the type of Femtocell withdrawal from the network, and the reason for the Femtocell withdrawal from the network.

Step S1204, FeGW sends to Femto-AAA a message carrying the network withdrawal information of the home base station (for example, Account Request (Stop) when using the Radius protocol), wherein the message carries at least one of the following: the family that has withdrawn from the network Base station ID, type of Femtocell withdrawal from the network, and reason for Femtocell withdrawal from the network.

Step S1205, after the Femto-AAA receives the home base station's network withdrawal information sent by the FeGW, the Femto-AAA responds to the FeGW with a home network withdrawal response message (for example, using the message Account Response (Stop)).

In step S1206, the FeGW sends a response message (for example, Account Request (Stop) when using the Radius protocol) to the SeGW.

In all the above-mentioned methods and the corresponding embodiments of all the methods, the network element of the control plane (Femto-AAA or FeGW) and the network element of the management plane (SON Server or MgmtSystem) interact to process the home base station exiting the network, and various network management protocols can be used , such as TR069, SNMP, DOCSIS, OMA-DM, etc. If the TR069 protocol is adopted, the control plane NE notifies the management plane of the Femtocell exit network information using the following interaction process: the control plane NE uses the Inform message to notify, and the management plane NE sends a response to the control plane NE using the InformResponse message; If the TR069 protocol is adopted, the network element on the management plane notifies the network element on the control plane to withdraw the Femtocell using the following interaction process: the network element on the management plane sends a connection request (CONNECTION REQUEST) to the network element on the control plane; the network element on the control plane sends a connection request to the network element on the management plane Send an Inform message; the management plane NE sends an InformResponse message to the control plane NE; the management plane NE sends a SetParameterValues message to the control plane NE, using this message, the management plane NE can notify the control plane NE Network withdrawal information of a specific Femtocell.

In all the above-mentioned methods and the corresponding embodiments of all the methods, if the TR069 protocol is used for the interaction between the network elements of the management plane, it is similar to the interaction process between the network elements of the control plane and the network elements of the management plane; in addition, the operation management maintenance (Operation Administration and Maintenance, referred to as OAM) system defined messages to interact.

In all the above-mentioned methods and the corresponding embodiments of all the methods, one network element sends a message to another network element, which is used to trigger another network element to perform denetization processing on the home base station; then the message carries at least one of the following information: The identifier of the home base station that has withdrawn from the network, the type of withdrawal of the home base station, the reason for the withdrawal of the home base station, whether to delete the identifier of the context of the home base station, and the behavior of the home base station. Among them, "whether to delete the home base station context" indicates whether the network element deletes the context information of the home base station stored in it, and the "home base station behavior" is used to indicate that the home base station that has withdrawn from the network triggers the service terminal behavior on it, such as switching to other base stations , or log out, etc.

In all the above scenarios and embodiments corresponding to all the scenarios, the identification information of the home base station includes but not limited to one or more of the following identifications: IP address, MAC address, and identification assigned by IEEE.

It should be noted that, in the above description, the network element A sends the information carrying the XXX content to the network element B, and the network element A sends the message carrying the XXX content to the network element B, expressing the same meaning.

The division of the control plane network element and the management plane network element in the present invention is not absolute. When the control plane network element communicates with the management plane network element, if the management plane protocol is adopted, the control plane network element also has The functions of the management plane network elements (for example, WFAP, FeGW and other control plane network elements communicate with the Mgmt System using the management plane protocol (such as TR069), then the control plane network elements also reside on the client side of the management plane, and also have management functions. functions of the control plane); if they use the control plane protocol to communicate with each other, the management plane network element also has the function of the control plane network element; if they use the upper layer application layer protocol to communicate, the control plane network element and the management plane network All elements have the function of data plane network elements.

In summary, through the description of the above method of the present invention, a complete home base station withdrawal process is provided, which enables the SON server, Mgmt System, Femto-GW, SeGW, and Femto-AAA to maintain correct home base station information and release Related resources of Femtocells that have been disconnected from the network.

Obviously, those skilled in the art should understand that each module or each step of the above-mentioned present invention can be realized by a general-purpose computing device, and they can be concentrated on a single computing device, or distributed in a network formed by multiple computing devices Optionally, they can be implemented with program codes executable by a computing device, so that they can be stored in a storage device and executed by a computing device, or they can be made into individual integrated circuit modules, or they can be integrated into Multiple modules or steps are fabricated into a single integrated circuit module to realize. As such, the present invention is not limited to any specific combination of hardware and software.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (21)

1. An abnormal network quitting method of a home base station is characterized by comprising the following steps:

one of the predetermined network elements sends a message to other predetermined network elements, wherein the predetermined network elements at least comprise one of the following: the home base station access gateway FeGW, the security gateway SeGW, the authentication authorization accounting server Femto-AAA, the self-organizing network server SON Sever and the home base station management System Mgmt System.

2. The method according to claim 1, wherein the message sent to the other predetermined network element carries information about network exit of the hnb.

3. The method of claim 2, wherein in a case that the SeGW triggers abnormal network logout of the home base station, the SeGW sending network logout information of the home base station to at least one of the SeGW and the Femto-AAA network element comprises:

and the SeGW sends network quitting information of the home base station to the Femto-AAA and/or the Femto-GW.

4. The method according to claim 3, wherein the sending, by the SeGW, network resignation information of the home base station to the Femto-AAA and/or the Femto-GW comprises at least one of:

the SeGW sends network quitting information of the femtocell to the Femto-GW;

and the Femto-GW sends the network quitting information of the home base station to the Femto-AAA.

5. The method according to claim 3, wherein the sending, by the SeGW, network resignation information of the home base station to the Femto-AAA and/or the Femto-GW comprises at least one of:

the SeGW sends network quitting information of the femtocell to the Femto-AAA;

and the SeGW sends network quitting information of the femtocell to the Femto-GW.

6. The method of claim 3, wherein the SeGW triggering the femtocell for abnormal network logout occurs after the SeGW receives a chain disconnection request message sent by the Femto-AAA.

7. The method of claim 2, wherein in case that the Femto-GW triggers abnormal network resignation of the home base station, the Femto-GW sending network resignation information of the home base station to at least one of the SeGW and Femto-AAA comprises:

the Femto-GW sends network quitting information of the femtocell to the SeGW;

and the SeGW sends network quitting information of the femtocell to the Femto-AAA.

8. The method of claim 2, wherein in case that the Femto-GW triggers abnormal network resignation of the home base station, then the Femto-GW sending network resignation information of the home base station to at least one of the SeGW and Femto-AAA comprises:

the Femto-GW sends network quitting information of the femtocell to the SeGW;

and the Femto-GW sends the network quitting information of the home base station to the Femto-AAA.

9. The method according to any one of claims 1 to 8, wherein the network element that triggers the femtocell to quit network abnormally learns the femtocell information of quitting network abnormally by one of:

detecting that the home base station is abnormally quitted;

and receiving the network quitting message of the home base station sent by at least one of the other predetermined network elements.

10. The method according to claim 9, wherein before receiving the logoff message of the home base station sent by at least one of the other network elements, the method further comprises:

and at least one of the SON Server and the Mgmt System detects that the home base station is abnormally disconnected.

11. The method of claim 9, wherein in the case that the Femto-GW or the Femto-AAA detects that the home base station is abnormally quitted, the sending, by the Femto-GW or the Femto-AAA, home base station quitting information to at least one of the SON Server and the Mgmt System comprises:

the Femto-GW or the Femto-AAA sends network quitting information of the home base station to one of the SON Server and the Mgmt System, and one of the SON Server and the Mgmt System network element sends network quitting information of the home base station to the other of the SON Server and the Mgmt System; or,

and the Femto-GW or the Femto-AAA sends network quitting information of the home base station to each of the SON Server and the Mgmt System.

12. The method according to claim 1, wherein in a case that one of the SON Server and the Mgmt System learns that the home base station abnormally exits the network, the one of the SON Server and the Mgmt System sends network exit information of the home base station to the other of the SON Server and the Mgmt System.

13. The method of claim 12, wherein one of the SON Server and the Mgmt System learns that the home base station is abnormally disconnected by one of:

detecting that the home base station is abnormally quitted;

and receiving a network quitting message of the home base station, which is sent by at least one of the WFAP, the FeGW and the Femto-AAA network element or another one of the SON Server and the Mgmt System.

14. The method of claim 13, wherein before receiving the logoff message of the home base station sent by at least one of the WFAP, the FeGW, and the Femto-AAA, the method further comprises:

and the Femto-AAA or the Femto-GW detects that the home base station is abnormally quitted.

15. The method of any of claims 1-8, 10-14, further comprising:

and triggering the network element of the home base station which abnormally quits the network and/or the network element which receives the network quitting information of the home base station to carry out the abnormal network quitting processing of the home base station.

16. The method of claim 15, wherein the Femto-GW performing abnormal processing of the home base station comprises at least one of:

deleting the context information of the home base station;

deleting a data channel between the home base station and the home base station;

deleting the context information of the terminal which obtains service from the home base station;

and triggering an abnormal network exit process of the terminal which obtains the service from the home base station.

17. The method according to claim 15, wherein the SeGW performing the abnormal handling of the home base station comprises at least one of:

deleting the context information of the home base station;

deleting a security tunnel between the home base station and the home base station;

and the SeGW sends a message carrying the network quitting information of the femtocell to the Femto-AAA.

18. The method of claim 17, wherein the Femto-AAA performing the abnormal processing of the home base station comprises at least one of:

updating the state of the home base station;

and processing the charging of the home base station.

19. The method of claim 15, wherein the SON Server performs network resignation processing of the home base station, comprising at least one of:

updating a neighbor cell list of a neighbor cell base station of the femtocell;

deleting the information of the home base station;

updating the state information of the home base station;

and sending alarm information.

20. The method according to claim 15, wherein the Mgmt System performs network quitting processing of the home base station, and the network quitting processing comprises at least one of the following:

updating a neighbor cell list of a neighbor cell base station of the femtocell;

the Mgmt System does not send the configuration information of the home base station and the update of the configuration information to the home base station;

the Mgmt System deletes the information of the home base station;

the Mgmt System updates the state information of the home base station;

and sending alarm information.

21. The method according to claim 19 or 20, wherein updating the neighbor list comprises at least one of: deleting the home base station from the neighbor cell list, and updating the state of the home base station from the neighbor cell list.

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