CN102131307A - Method for quitting network of family base station - Google Patents

Abstract

The invention discloses a method for quitting network of a family base station. The method comprises the following step that: a security gateway sends a message to at least one of pre-set network elements, wherein the pre-set network elements at least comprise one of a family base station access gateway and a family base station. By the invention, the problems of errors occurring in a network quit process of the family base station due to an incomplete network quit procedure are solved, so that the network quit process is improved and the errors caused by network quit are reduced.

Description

Network quitting method for home base station

Technical Field

The invention relates to the field of communication, in particular to a network quitting method for a home base station.

Background

In order to provide higher traffic rates to mobile users and reduce the cost required for using high-rate services, reduce the investment in operator network deployment, and at the same time, to make up for the lack of coverage of existing distributed cellular wireless communication systems, home base stations (also called home base stations, i.e., femtos or WFAPs) are often deployed in existing communication networks as a supplement to macro base stations. Home base stations are generally installed in homes, office areas, and the like. The home base station is a small-sized and low-power base station, and has the advantages of practicability, convenience, low power output and the like.

Fig. 1 is a schematic diagram of a network architecture after a home base station is deployed according to the prior art, and as shown in fig. 1, a schematic diagram of a macro-station network without a home base station deployed in the upper half of the figure includes: a Macro base station Access Network (Macro Access Service Network, abbreviated as Macro ASN) and a core Network (Connection Service Network, abbreviated as CSN), wherein the Macro ASN includes: a macro Base Station (BS for short) and an access network gateway (ASN-GW); the CSN comprises: authentication, Authorization and Accounting (AAA) server, Home Agent (HA). The lower half of the figure is a network element newly added after the femtocell is deployed, and the network element comprises: a home base station access network (Femto ASN) and a home base station core network, wherein the home base station core network is a network element provided by a home base station network service provider (Femto NSP). Femto ASN includes: a Femto access Gateway (Femto-GW, or simply referred to as FeGW), a Self-organizing network Server (SON Server), and a Security Gateway (SeGW); the network element in Femto NSP comprises: a management System of the home base station (wimaxfemoto Access Point Mgmt System, WFAP Mgmt System for short), a home base station AAA server, and a home base station bootstrap server (WFAP boottrapserver). It should be noted that WFAP and Femto in the following are the same and refer to home base station.

In the network architecture after the femtocell is deployed, since the femtocell is accessed to the femtocell network through the public network, the security of the femtocell network accessed to the femtocell network through the public network is ensured by the security tunnel (securettunnel) of the SeGW and the femtocell. Femto-GW is used as an access gateway of the home base station, data plane and control plane channels exist in the Femto-GW, and after the home base station is initialized successfully and provides service for the terminal, control signaling and data between the terminal and the CSN are forwarded through the Femto-GW. The SON Server is mainly used for carrying out automatic configuration, automatic optimization and self-fault detection and recovery on MAC/PHY parameters of the home base station. WFAP-AAA is mainly used to authenticate that a home base station is a legal subscriber of the WFAP-NSP. The WFAP-Mgmt System provides some upper layer configuration parameters for the home base station besides the MAC/PHY.

Fig. 2 is a flowchart of home base station initialization according to the related art, including the steps of:

two types of parameters are configured in advance on the home base station: operator independent parameters, such as trust certificates for home base stations (WFAP-credits); operator-related parameters, such as a full Domain Name (FQDN) of a home base station Bootstrap Server (boottrap Server) provided by the operator. When the home base station accesses the network, the home base station must discover the bootstrap server and download the initial parameters from the bootstrap server. Fig. 2 is a flowchart of home base station initialization according to the related art, and a detailed procedure of home base station initialization includes the following steps:

step 1, a home base station is accessed to a broadband network and bootstrapped after being electrified;

step 2, the home base station acquires the IP address (public network) thereof through the public network; if the femtocell does not pre-configure the FQDN of the bootstrap server, the process may also acquire the FQDN of the bootstrap server at the same time;

step 3, if the femtocell only has the FQDN of the bootstrap server and does not have the IP address of the bootstrap server, the femtocell needs to acquire the IP address of the bootstrap server through a Domain Name System (DNS) process.

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

and step 5, the home base station is connected to the bootstrap server and requests initial configuration information. The femtocell provides its IP address and location information (e.g., GPS information, etc.) to the bootstrap server, and the bootstrap server selects an appropriate SeGW according to the information provided by the femtocell. The bootstrap server provides the IP address of the SeGW and also provides the FQDN of the WFAP Mgmt System as a management server to the home base station;

step 6, the home base station establishes a security tunnel with the SeGW (the SeGW allocates an intranet IP address to the home base station), and the Femto-AAA completes authentication of the home base station through the contact between the SeGW and the Femto-AAA, namely, the home base station is a legal user of the Femto NSP;

step 7, the home NodeB acquires the IP address of the WFAP Mgmt System (also called Management Server) through the 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: IP address, software and hardware version, location information of WFAP, etc. Based on this local information, the management server provides home base station high-level (above MAC/PHY) configuration information including the IP address or FQDN of the SON server;

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

and step 10, the home base station is connected to the SON server and provides local information to the SON server, wherein the local information comprises the position information of the home base station. The SON server carries out position authentication on the home base station according to the position information of the home base station; the home base station that passes the location authentication can transmit wireless signals in a certain frequency band or frequency range. The SON server also provides MAC/PHY layer configuration parameters to the home base station.

Step 11, registering the home base station on Femto-GW; the method comprises the step of establishing a data channel between the home base station and the Femto-GW.

After the above steps, the femtocell enters an operating state, and can provide services for the terminals within the coverage area of the femtocell. In short, the home base station initialization process refers to a series of processes in which, after the home base station is connected to a broadband connection (e.g., DSL, etc.), the home base station is powered on, passes authentication, and can provide services to a user.

Through the initialization process of the femtocell, after the femtocell completes initialization, a series of network elements in the network all maintain the information of the femtocell. For example, in step 6, the femtocell and the security gateway establish a security tunnel, and then interact with Femto-AAA through the security tunnel, and pass authentication, so that information of the femtocell passing authentication is maintained in Femto-AAA; in step 8, the femtocell interacts with the Mgmt System to obtain upper layer configuration information and SON server information, so that the Mgmt System also obtains the information of the femtocell; in step 10, the femtocell interacts with the SON Server to obtain information such as MAC/PHY/RF, and the SON Server also obtains information of the femtocell; in step 11, a data channel is established between the home base station and the Femto-GW, and therefore information of the home base station is also maintained in the Femto-GW.

As can be seen from the above, in the initialization (or referred to as registration) process of the femtocell, the network element that acquires the femtocell information should know that the femtocell exits the network when the femtocell exits the network, otherwise, the following possible errors may be caused:

the SON server maintains information of a neighbor list of the home base station in the network, and if the home base station is not notified to the SON server in time after exiting the network, the neighbor list in the network is incorrect, and the switching performance is affected. The SON server performs some optimization of MAC/PHY/RF parameters, and if the home base station does not notify the SON server in time after exiting the network, an error may be caused in the parameter optimization process.

The Mgmt System is responsible for maintaining and updating the CSG configuration information of the home base station, and if the home base station does not inform the Mgmt System in time after the home base station quits the network, the Mgmt System can also actively update the CSG configuration information of the home base station which has quitted the network. The SeGW position has a safety tunnel between the SeGW and the femtocell, and if the SeGW is not notified in time after the femtocell quits the network, the safety tunnel between the SeGW and the home cannot be removed, so that resource waste is caused. Furthermore, Femto-AAA can also be informed to acquire the real-time status of home base station or to perform related processing in charging.

However, currently, no network exit procedure of the home base station is provided in the related art. I.e. which network elements may trigger the logoff procedure are not provided. For the femtocell, there is also no complete network exit process in the prior art, and thus, various errors may occur in the network exit process of the femtocell in the prior art.

Disclosure of Invention

The present invention is directed to a method for a home base station to quit a network, so as to solve at least the problem that there is not a complete network quit process in the related art, which may cause various errors in the network quit process of the home base station.

In order to achieve the above object, according to an aspect of the present invention, a home base station network logout method is provided.

The network quitting method of the home base station comprises the following steps: the security gateway SeGW sends a message to at least one of the predetermined network elements, wherein the predetermined network elements include at least one of the following: the home base station is accessed to a gateway Femto-GW and a home base station.

By adopting the invention, Femto-AAA or SeGW triggers network quitting, and other network elements perform network quitting processing, thus solving the problem that various errors can occur in the network quitting process of the femtocell caused by the absence of a complete network quitting flow in the related technology, further perfecting the network quitting process and reducing the errors caused by network quitting.

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

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a schematic diagram of a network architecture after a home base station is deployed according to the related art;

fig. 2 is a flow chart of home base station initialization according to the related art;

fig. 3 is a flowchart of a network logout method of a home base station according to a first method in an embodiment of the present invention;

FIG. 4 is a flowchart of Femto-AAA or SeGW triggered logout according to a first embodiment of the present invention;

fig. 5 is a flowchart of a femto network logout method according to the second embodiment of the present invention;

FIG. 6 is a flowchart of Femto-AAA or SeGW triggered logoff according to the second embodiment of the present invention;

FIG. 7 is a flowchart of Femto-AAA or SeGW triggered logoff according to a third embodiment of the present invention;

FIG. 8 is a flowchart of Femto-AAA notifying Mgmt System Home node B to quit network according to the fourth embodiment of the present invention;

fig. 9 is a flowchart of Femto-AAA or SeGW triggered logout in case that a FeGW registered in a home base station is the same as a FeGW functioning as aaaprxy according to an embodiment of the present invention.

Detailed Description

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

In the following embodiments, the network logout procedure is triggered by the SeGW or the Femto-AAA, for example, when the SeGW detects that the security tunnel fails, the Femto-AAA detects that the packet loss rate of the femtocell reaches a certain threshold, or the Femto-AAA detects that the subscription information is expired, it needs to be noted that the network logout processing of the femtocell is triggered. And the network quitting information of the home base station can be notified to other network elements except the SeGW or Femto-AAA in the home base station network. It should be noted that the SeGW in the following embodiments may include an Authenticator (Authenticator) of the home base station. The network elements involved in this embodiment can be classified into those involving management plane (SON Server, Mgmt System) and those not involving management plane (home base station, SeGW, Femto-AAA, Femto-GW). In the first method, after a SeGW or a Femto-AAA triggers network quitting, the SeGW sends network quitting information of the home base station to the Femto-GW; in the second method, after the SeGW or Femto-AAA triggers network quit, a network quit message is sent to the femtocell.

In this embodiment, the provided method for quitting the home base station includes: the security gateway SeGW sends a message to at least one of the predetermined network elements, wherein the predetermined network elements comprise: the home base station is accessed to a gateway Femto-GW and a home base station, and the message carries network quitting information of the home base station.

Preferably, the SeGW or the network element that receives the message in the predetermined network element sends a message carrying the network exit information of the home base station to the network element that does not receive the message in the predetermined network element, so that the network exit information of the home base station can be notified to the network element that does not relate to the management plane.

Preferably, Femto-GW or femtocell sends a message carrying network quitting information of femtocell to at least one of SON server and Mgmt System. Therefore, the network quitting information of the home base station can be notified to the network element related to the management plane.

Preferably, before the SeGW sends the message to at least one of the predetermined network elements, the authentication and authorization accounting server Femto-AAA may send a message carrying the network exit information of the home base station to the SeGW, that is, there is Femto-AAA triggering the network exit processing of the home base station, and if the SeGW does not send the message to the SeGW before the SeGW sends the message to at least one of the predetermined network elements, the SeGW triggering the network exit processing of the home base station.

Methods one and two will be described below.

Method 1

Fig. 3 is a flowchart of a femto network logout method according to a first method of the embodiment of the present invention, as shown in fig. 3, the flowchart includes the following steps S302 to S310:

step S302, Femto-AAA sends message carrying home base station network quitting information to Se-GW, SeGW-GW processes network quitting of the home base station according to the received message;

step S304, the SeGW sends a message carrying the network quitting information of the home base station to the Femto-GW, and the Femto-GW performs the network quitting processing of the home base station according to the received message;

step S306, Femto-GW or SeGW sends a message carrying network quitting information of the femtocell to the femtocell;

step S308, Femto-GW or home base station sends message carrying network quitting information of home base station to at least one of SON (self-network-over) and Mgmt System;

and step S310, the SON river, the Mgmt System and the network element of the femtocell, which receives the network quitting information of the femtocell, perform the network quitting processing of the femtocell.

If the femtocell quits the network triggered by Femto-AAA, starting from step S302, that is, Femto-AAA sends a message to SeGW to trigger the logout processing of the femtocell; if the femtocell is quitted by the SeGW, then the method starts in step S304, namely the SeGW sends a message to the Femto-GW to trigger the quitting of the femtocell.

In the above step, the network logout processing performed by the SON Server for the hnb may include at least one of the following: the SON Server updates a neighbor cell list of a neighbor cell base station of the femtocell (namely, the neighbor cell list contains the femtocell base station); deleting the information of the home base station; updating the state information of the home base station; the alarm information is sent out, and the alarm information is sent out,

in the above step, the Mgmt System performing network resignation processing of the home base station may include at least one of: the Mgmt System stops actively updating the configuration information (such as CSG member information) of the home base station, 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; the Mgmt System deletes the information of the home base station; the Mgmt System updates the state information of the home base station; sending alarm information; and updating the neighbor cell list of the neighbor cell base station of the home base station (namely, the base station of the home base station is contained in the neighbor cell list).

Wherein, the updating the neighbor list at least comprises one of the following: and deleting the home base station from the neighbor cell list, or updating the state of the home base station from the neighbor cell list.

In the above step, the network logout processing of the home base station by the SeGW includes at least one of: the SeGW deletes the context information of the hnb, deletes the security tunnel (which may also be deleted by the hnb, where, for example, the security tunnel is an IPSec tunnel) established with the hnb, and sends a message carrying the network resignation information of the hnb to Femto-AAA, for example, stops the femtocell charging message Accounting-request (stop).

In the above step, Femto-AAA performing network resignation processing of the femtocell at least includes one of: Femto-AAA updates state information of the home base station, and home base station charging related processing (for example, stopping charging for the home base station).

In the above step, the Femto-GW resigning may include at least one of: deleting a data channel between Femto-GW and the home base station; the Femto-GW deletes the context information of the home base station (e.g., information about the R6-F interface between the Femto-GW and the home base station).

Through the steps, under the condition of network quitting processing of the femtocell triggered by the SeGW or the Femto-AAA, the femtocell, the SON Server, the Mgmt System, the SeGW and the Femto-AAA perform network quitting processing on the femtocell.

To describe in detail the above steps S302 to S310, the Femto-AAA or SeGW triggered logout process includes the following steps S1 to S6:

in step S1, Femto-AAA notifies SeGW to perform network resignation processing of the femtocell.

Preferably, the process may comprise two sub-steps: step S1.1, Femto-AAA sends a broken link message (for example, a disconnect request message when a Radius protocol is adopted, or an Abort-Session-request (ASR) Command when a Diameter protocol is adopted), wherein the message carries at least one of the following: identification information of the home base station and reason information of network quit of the home base station.

Step S1.2, the SeGW sends a response message of the link-breaking request (for example, a Disconnect ACK or Disconnect NACK message when a Radius protocol is adopted, or an Abort-Session-Answer (ASR) Command when a Diameter protocol is adopted) to the Femto-AAA.

In step S2, the SeGW notifies the Femto-GW to perform the network logout processing of the home base station.

Preferably, the process comprises two sub-steps: step S2.1, sending a Request message (WFAP NetExit Request) of network quitting processing to Femto-GW by SeGW; in step S2.2, Femto-GW sends a response message (WFAP NetExitResponse) for the logout process to SeGW.

In step S3, Femto-GW notifies the femtocell to perform network resignation processing.

Preferably, the process comprises two sub-steps: step S3.1, Femto-GW sends Request message (WFAP NetExit Request) of network quit processing to home base station; step S3.2, the home base station sends a Response message (WFAPNetExit Response) of the network quitting processing to Femto-GW.

Preferably, after receiving the message sent by Femto-GW, the home base station triggers the serving terminal on the home base station to switch to another base station, or triggers the terminal on the home base station to exit the network.

And step S4, deleting the security tunnel between the WFAP and the FeGW and informing the Femto-AAA to perform the home base station network quitting processing. Step S4 is divided into two situations, namely situation 1, WFAP triggers and deletes the safety tunnel between WFAP and SeGW, and SeGW informs Femto-AAA to perform network quitting processing of the home base station; and in case 2, the SeGW triggers and deletes the security tunnel between the WFAP and the SeGW and informs Femto-AAA to perform network quitting processing of the home base station.

For case 1 of step S4, the following substeps are included:

step S4.1, the home NodeB sends a request for detaching the security tunnel to the SeGW.

Step S4.2, the SeGW responds to the hnb with a tunnel detachment response, where the response message is used to confirm that the IPSec tunnel has been deleted.

Step S4.3, the SeGW notifies Femto-AAA to perform the network quitting process of the WFAP.

Step S4.4, Femto-AAA responds to SeGW to confirm that the network logout process of the hnb has been performed.

Preferably, for case 1 of step S4, step S4.3 occurs after step S4.1.

For case 2 of step S4, the following substeps are included:

step S4.1, the SeGW sends a request to the home base station to tear down the secure tunnel.

And step S4.2, the femtocell responds to the SeGW to remove the safe tunnel response so as to confirm that the safe tunnel is deleted.

And step S4.3, the SeGW notifies the Femto-AAA to perform the network quitting processing of the home base station.

Step S4.4, Femto-AAA sends a response message to SeGW, where the response message is used to confirm that the Femto has performed network resignation processing on the Femto.

Preferably, for case 2 in step S4, the SeGW deletes the security tunnel and notifies Femto-AAA to perform Femto-logoff processing for no sequential point, i.e. step S4.1 and step S4.3 do not have sequential points.

Preferably, for case 2 of step S4, step S3 is eliminated.

Step S5, the Femto-GW or the hnb notifies the SON Server to perform network resignation processing on the hnb (i.e. the Femto-GW or the hnb sends network resignation information of the hnb to the SON Server, so that the SON Server performs network resignation processing on the hnb after receiving the information).

Preferably, the process comprises two sub-steps: step S5.1, the home NodeB or the FeGW sends network quitting information of the home NodeB to the SON Server; and step S5.2, the SON Server sends a response message to the home base station or the FeGW.

In step S6, the Femto-GW or the home base station notifies the Mgmt System to perform network logout processing on the home base station (i.e., the Femto-GW or the home base station sends network logout information of the home base station to the Mgmt System, so that the Mgmt System performs network logout processing on the home base station after receiving the information).

Preferably, the process comprises two sub-steps: step S6.1, the home base station or the FeGW sends network quitting information of the home base station to the Mgmt System; step S6.2, the Mgmt System sends a response message to the home base station or the FeGW.

Preferably, in the above method, step S1 is eliminated, and a SeGW triggered WFAP logout method is configured.

Preferably, in the above method and its modified method, step S5 and step S6 are eliminated, and a WFAP network resize method that does not involve management plane network elements (SON Server and Mgmt System) is configured.

Preferably, in the above method and its modified method, only step S5 and step S6 are reserved, and a WFAP network logout method involving only management plane network elements (SON Server and Mgmt System) is configured.

Preferably, in the method and the modified method thereof, only one of the step S5 and the step S6 may exist, that is, the SON Server or the Mgmt System may know the network quitting information of the home base station, and may notify the other party so that the other party performs the network quitting process of the home base station. For example, step S4 may be: the Femto-GW or the femtocell informs the SONServer to perform the network quitting processing of the femtocell, wherein the SON Server also informs the Mgmt System to perform the network quitting processing of the femtocell; or, in step S5, the Femto-GW or the home base station may notify the Mgmt System to perform the network logout processing of the home base station, where the Mgmt System further notifies the SON Server to perform the network logout processing of the home base station.

It should be noted that, although the network logout procedure of the home base station is described in the order of step S1 to step S6 in the above method and its modified method, the present embodiment is not limited to this order, that is, the described steps S1 to step S6 may be performed in an order different from that here, which will be exemplified below.

Preferably, in the method and its modified method, the step triggered by the FeGW (e.g., step S3, step S5, step S6 in the method) occurs after the FeGW detects or learns that the home base station is out of network, i.e., after step S2.1 in the method, or further, part or all of the steps are nested between step S2.1 and step S2.2.

Preferably, in the method and its modified method, the steps triggered by the FeGW are partially or completely out of sequence, for example, step S3, step S5, and step S6 in the method.

Preferably, in the method and its modified method, the step triggered by the WFAP (e.g., step S4 case 1, step S5, step S6 in the method) occurs after the WFAP probes or learns that the home base station is out of network, i.e., step S3.1; or further partially or fully nested between step S3.1 and step S3.2. Triggered by WFAP.

Preferably, in the method and its modified method, the steps triggered by WFAP are partially or completely out of sequence, for example, step S4, case 1, step S5, and step S6 in the method.

Preferably, in the method and its variants described above, the step triggered by the SeGW (e.g. step S2, step S4 case 2 in the method) occurs after the SeGW detects or learns that the home base station is out of network, i.e. after step S1.1. Or further some or all steps are nested between step S1.1 and step S1.2.

Preferably, in the method and its variants, the steps triggered by the SeGW are partially or totally out of order, for example, step S2, step S4, case 2 in the method.

Preferably, the interaction between the femtocell and the FeGW must be performed before the secure tunnel between the SeGW and the WFAP is deleted.

Preferably, in the method and its modified method, the step S2, the step S3, the step S4, the step S5 and the step S6 triggered directly or indirectly by the SeGW occur after the step S1.1, and further may be partially or completely nested between the step S1.1 and the step S1.2.

The preferred embodiment of the present invention will be further described with reference to the accompanying drawings

Example one

Fig. 4 is a flowchart of Femto-AAA or SeGW triggering network resignation according to a first embodiment of the present invention, where the flowchart includes the following steps:

step S401, Femto-AAA notifies SeGW home base station to quit network. Wherein, Femto-AAA sends SeGW message with at least one of the following information: identification information of the home base station and reason information of network quit of the home base station.

Step S402, the SeGW triggers Femto-GW to perform the network quitting processing of the femtocell; the SeGW sends a network quitting processing request message of the femtocell to the FeGW, wherein the message carries at least one of the following information: the home base station identification information and the network quit reason information.

Step S403, Femto-GW triggers the home base station to perform network quit processing. The message (WFAP NetExit Request) sent by Femto-GW to home base station contains at least one of the following information: home base station identification information and home base station network quit reason information; and after receiving the message sent by the Femto-GW, the femtocell triggers the service terminal on the femtocell to switch to other base stations, or triggers the terminal on the femtocell to quit the network, and then the femtocell sends a network quitting response to the Femto-GW.

In step S404, Femto-GW sends a response message of network resignation processing to SeGW.

Step S405, the femtocell triggers the SON Server to perform network logout processing (WFAP NetExit from SON Server) of the femtocell, and the information sent by the Femto-GW to the SON Server includes the following or all information: the home base station identification information and the network quit reason information.

Step S406, the femtocell triggers the Mgmt System to perform network logout processing (WFAP NetExit from Mgmt System) of the femtocell, and the information sent by the Femto-GW to the Mgmt System includes the following or all information: the home base station identification information and the network quit reason information.

Step S407, the SeGW deletes the security tunnel between itself and the home base station and notifies Femto-AAA to perform home base station network quitting processing.

Preferably, in this embodiment, step S401 is eliminated, and an embodiment in which the SeGW triggers the hnb to quit the network is configured.

Preferably, in this embodiment and its modified embodiments, step S405 and step 406 are eliminated, so that an embodiment that does not involve management plane network elements (SON Server and Mgmt System) is configured.

Preferably, in this embodiment and its modified embodiments, only step S405 and step 406 are reserved, so that an embodiment only involving management plane network elements (SON Server and Mgmt System) is configured.

Preferably, in this embodiment and its modified embodiments, one of the steps S405 and S406 may be optional, and then another network element is triggered to process the network exit of the home base station through information transfer between the SON Server and the WFAP MgmtSytem.

Preferably, in the present embodiment and its modified embodiments, step S405 and step S406 are not sequentially divided;

preferably, in this embodiment and its modified embodiments, step S405 and step S406 occur after the home base station receives the home base station logout request message sent by the FeGW in step S403;

preferably, in this embodiment and its modified embodiments, step S407 may occur after step S404.

Method two

Fig. 5 is a flowchart of a femto network logout method according to the second embodiment of the present invention, where the flowchart includes the following steps:

step S502, Femto-AAA sends message carrying home base station network quitting information to Se-GW, SeGW-GW processes network quitting of the home base station according to the received message;

step S504, the SeGW sends a message carrying network quitting information of the femtocell to the femtocell, and the femtocell performs network quitting processing according to the received message.

Step S506, the home base station or the SeGW sends a message carrying home base station network quitting information to the Femto-GW;

in step S508, the home base station or Femto-GW sends a message to at least one of SON set and MgmtSystem.

Step S510, the Femto-GW, the SON river and the Mgmt System receive the network quitting information of the femtocell and perform the network quitting processing of the femtocell.

If the femtocell quits the network triggered by Femto-AAA, starting from step S502, that is, Femto-AAA sends a message to SeGW to trigger the logout processing of the femtocell; if the femto base station is triggered by the SeGW to quit the network, the method starts in step S504, where the SeGW sends a message to the WFAP to trigger the logout process for the femto base station.

In the above steps, after receiving the network quitting information of the femtocell, Femto-GW, SON Server, Mgmt System, SeGW, and Femto-AAA, the network quitting processing of the femtocell is the same as that described in the first method, and is not described herein again.

In the following, detailed description is made on the Femto-AAA or SeGW triggered logout procedure with reference to steps S502 to S510, respectively, where the Femto-AAA triggered logout procedure includes steps S1 to S6 as follows:

and step S1, the Femto-AAA triggers the SeGW to perform the network quitting processing of the femtocell.

Preferably, the process may include two substeps, which are described in step S1 and step S1.1 and step S1.2 in the first method, and are not described herein again.

In step S2, the SeGW notifies the home base station to perform network logout processing.

Preferably, the process may comprise two sub-steps: step S2.1, the SeGW sends a request message for deleting the security tunnel to the home base station; and step S2.2, the home NodeB sends a response message for deleting the security tunnel to the SeGW.

Preferably, after receiving the message sent by the SeGW, the home base station triggers the terminal served by the home base station to switch to another base station, or triggers the terminal on the home base station to exit the network.

In step S3, the Femto or SeGW notifies the Femto-GW to perform the network logout processing of the Femto. Step S3 is divided into two cases. In case 1, the femtocell notifies the FeGW to perform femtocell network logout processing; and in case 2, the SeGW notifies the FeGW to perform network quitting processing of the home base station.

In step S3, case 1, the WFAP notifies the FeGW to perform the femto logout process.

Preferably, the process may comprise two sub-steps:

step S3.1, the femtocell sends a femtocell network quitting processing request message to Femto-GW;

and step S3.2, Femto-GW sends network quit processing response message to the home base station or SeGW.

Preferably, for case 1 of step S3, this occurs between step S2.1 and step S2.2, i.e. it is to be ensured that message interaction between WFAP and FeGW occurs before deleting WFAP and SeGW security tunnels.

Step S3, case 2, the SeGW notifies the FeGW to perform the femtocell resignation process.

Preferably, the process may comprise two sub-steps:

step S3.1, the SeGW sends a home base station network quitting processing request message to the Femto-GW;

step S3.2, Femto-GW sends network quit processing response message to SeGW.

Preferably, case 2 is not sequentially divided for step S2, step S3;

in step S4, the SeGW notifies Femto-AAA to perform network resignation processing of the femtocell.

Preferably, this step may comprise the following two substeps: and step S4.1, the SeGW sends a message to inform Femto-AAA to process the network quit of the home base station.

Step S4.2, Femto-AAA sends response message to SeGW to confirm that the home base station has been processed for network quitting.

Step S5, Femto-GW or home base station informs SON Server to perform network quit processing of home base station.

In step S6, the Femto-GW or the Femto notifies the Mgmt System to perform the network logout processing of the Femto.

Preferably, in the above method, step S1 is eliminated, and a SeGW triggered WFAP logout method is configured.

Preferably, in the above method and its modified method, step S5 and step S6 are eliminated, and a WFAP network resize method that does not involve management plane network elements (SON Server and Mgmt System) is configured.

Preferably, in the above method and its modified method, only step S5 and step S6 are reserved, and a WFAP network logout method involving only management plane network elements (SON Server and Mgmt System) is configured.

Preferably, in the method and the modified method thereof, only one of the step S5 and the step S6 may exist, that is, the SON Server or the Mgmt System may know the network quitting information of the home base station, and may notify the other party so that the other party performs the network quitting process of the home base station. For example, step S4 may be: the Femto-GW or the femtocell informs the SONServer to perform the network quitting processing of the femtocell, wherein the SON Server also informs the Mgmt System to perform the network quitting processing of the femtocell; or, in step S5, the Femto-GW or the home base station may notify the Mgmt System to perform the network logout processing of the home base station, where the Mgmt System further notifies the SON Server to perform the network logout processing of the home base station.

Similarly to the first method, although the network logout process of the hnb is described in the order of step S1 to step S6, the present invention and the modification method thereof are not limited to this order, that is, the described steps S1 to S6 may be performed in an order different from this order, which is exemplified below.

Preferably, in the method and the modified method thereof, the step triggered by the FeGW (e.g., step S5, step S6 in the method) occurs after the FeGW detects or learns that the home base station is out of network, that is, after step S3.1 in the method, or further, some or all of the steps are nested between step S3.1 and step S3.2.

Preferably, in the method and its modified method, the steps triggered by the FeGW are partially or completely out of sequence, for example, step S5 and step S6 in the method.

Preferably, in the method and its modified method, the step triggered by the WFAP (e.g., step S3, step S5, step S6 in the method) occurs after the WFAP probes or learns that the home base station is out of network, i.e., step S2.1; or further some or all steps are nested between step S2.1 and step S2.2.

Preferably, in the method and its modified method, the steps triggered by WFAP are partially or completely out of sequence, for example, step S3, step S5, and step S6 in the method.

Preferably, in the method and its variants described above, the step of the SeGW trigger (e.g., step S2, step S3, step S4 in the method) occurs after the SeGW detects or learns that the home base station is out of network, i.e., step S1.1. Or further some or all steps are nested between step S1.1 and step S1.2.

Preferably, in the method and its variants, the steps triggered by the SeGW are partially or totally out of order, for example, step S2, step S3, step S4 in the method.

Preferably, the interaction between the femtocell and the FeGW must be performed before the secure tunnel between the SeGW and the WFAP is deleted.

Preferably, in the method and its modified method, the step S2, the step S3, the step S4, the step S5 and the step S6 triggered directly or indirectly by the SeGW occur after the step S1.1, and further may be partially or completely nested between the step S1.1 and the step S1.2.

The second and third preferred embodiments of the present invention will be further described with reference to the accompanying drawings.

Example two

Fig. 6 is a flowchart of Femto-AAA or SeGW triggered logout according to the second embodiment of the present invention, where the flowchart includes the following steps:

step S601, Femto-AAA notifies SeGW home base station to quit network. Wherein, Femto-AAA sends SeGW message with at least one of the following information: identification information of the home base station and reason information of network quit of the home base station.

Step S602, the SeGW triggers the femtocell to perform network logout processing. The message sent by the SeGW to the WFAP contains the following or all information: the home base station identification information and the network quit reason information. And after receiving the message sent by Femto-GW, the home base station triggers the service terminal obtained thereon to switch to other base stations, or triggers the terminal on the home base station to exit the network. In this step, the deletion of the secure tunnel is also required.

Preferably, step S602 may comprise two substeps: step S602.1, the SeGW sends out the home base station network quitting information to the home base station; step S602.2, the hnb sends corresponding response information to the SeGW.

Step S603, the femtocell triggers Femto-GW to perform network quitting processing of the femtocell, wherein the message sent by the femtocell to the Femto-GW contains the following or all information: information marked by the home base station and reason information of network quit of the home base station.

Step S604, the hnb triggers the SON server to perform network resignation processing on the hnb, where the message sent by the hnb to the SON server carries the following part or all of the information: the home base station identifier information and the home base station network quitting reason information.

Step S605, the femtocell triggers the Mgmt System to perform network logout processing of the femtocell, wherein the information sent by the femtocell to the Mgmt System carries the following or all information: the home base station identification information and the home network quitting reason information.

Step S606, the SeGW triggers Femto-AAA to perform the network quitting processing of the femtocell; the message sent by the SeGW to the Femto-AAA carries the following part or all of information: the home base station identifier information and the home base station network quitting reason information.

Preferably, in this embodiment, the step S601 is eliminated, so that the SeGW triggers the home base station to quit the network.

Preferably, in this embodiment and its modified embodiments, step S604 and step 605 are eliminated, so that an embodiment that does not involve management plane network elements (SON Server and Mgmt System) is configured.

Preferably, in this embodiment and its modified embodiments, only step S604 and step S605 are reserved, so that an embodiment only involving management plane network elements (SON Server and MgmtSystem) is configured.

Preferably, in this embodiment and its modified embodiments, one of the steps S604 and S605 may be optional, and then another network element is triggered to perform processing on the network quit of the home base station through information transfer between the SON Server and the Mgmt System.

Preferably, in this embodiment and its modified embodiments, after the home base station receives the information triggering the network logout from the SeGW in step S602 (S602.1), the home base station does not delete the security tunnel between the WFAP and the SeGW until step S603 is completed.

Preferably, in this embodiment and its modified embodiments, the step triggered by WFAP must be after step S602.1, e.g., step S603, step S604, step S605.

Preferably, in this embodiment and its modified embodiments, the steps triggered by the WFAP are partially or completely out of sequence, for example, in this embodiment, the steps S603, S604, and S605 are partially or completely out of sequence.

Preferably, in this embodiment and its modified embodiments, the step triggered by the SeGW must be after step S601.1, e.g., step S602, step S606.

Preferably, in this embodiment and its modified embodiments, the steps triggered by the SeGW are partially or completely out of sequence, for example, in this example, step S602 and step S606 are partially or completely out of sequence.

EXAMPLE III

Fig. 7 is a flowchart of Femto-AAA or SeGW triggered logout according to a third embodiment of the present invention, where the flowchart includes the following steps:

in step S701, Femto-AAA notifies SeGW home base station to quit network. Wherein, Femto-AAA sends SeGW message with at least one of the following information: identification information of the home base station and reason information of network quit of the home base station.

Step S702, the SeGW triggers the hnb to perform network resignation processing. The message sent by the SeGW to the WFAP contains the following or all information: the home base station identification information and the network quit reason information. And after receiving the message sent by Femto-GW, the home base station triggers the service terminal obtained thereon to switch to other base stations, or triggers the terminal on the home base station to exit the network. The detailed substeps and functions of this step are the same as those of step S602, and are not described herein again.

Step S703, the SeGW triggers the Femto-GW to perform the network quitting processing of the femtocell, wherein the message sent by the SeGW to the Femto-GW contains the following or all information: information marked by the home base station and reason information of network quit of the home base station.

Step S704, the hnb triggers the SON server to perform network resignation processing on the hnb, where the message sent by the hnb to the SON server carries the following part or all of the information: the home base station identifier information and the home base station network quitting reason information.

Step S705, the femtocell triggers the Mgmt System to perform network logout processing of the femtocell, wherein the information sent by the femtocell to the Mgmt System carries the following or all information: the home base station identification information and the home network quitting reason information.

Step S706, the SeGW triggers Femto-AAA to perform the network quitting processing of the femtocell; the message sent by the SeGW to the Femto-AAA carries the following part or all of information: the home base station identifier information and the home base station network quitting reason information.

Preferably, in this embodiment, step S801 is eliminated, so that the SeGW triggers the home base station to quit the network.

Preferably, in this embodiment and its modified embodiments, step S704 and step S705 are eliminated, so that an embodiment that does not involve management plane network elements (SON Server and Mgmt System) is configured.

Preferably, in this embodiment and its modified embodiments, only step S704 and step S705 are reserved, so that an embodiment only involving management plane network elements (SON Server and MgmtSystem) is configured.

Preferably, in the present embodiment and its modified embodiments, step S704 and step S705 are not sequentially divided.

Preferably, in this embodiment and its modified embodiments, steps S704 and S705 occur after the home base station receives the message sent by the SeGW in the interaction between the home base station and the SeGW in step S703.

Preferably, in this embodiment and its modified embodiments, one of the steps 803 and S804 may be optional, and then another network element is triggered to process the network quit of the home base station through information transfer between the SON Server and the WFAP Mgmt Sytem.

Preferably, in this embodiment and its modified embodiments, the step triggered by WFAP must be after step S702.1, e.g., step S704, step S705.

Preferably, in this embodiment and its modified embodiments, the steps triggered by the WFAP are partially or completely out of sequence, for example, the steps S704 and S705 are partially or completely out of sequence in this example.

Preferably, in this embodiment and its modified embodiments, the step triggered by the SeGW must be after step S701.1, for example, step S702, step S703, step S706.

Preferably, in this embodiment and its modified embodiments, the steps triggered by the SeGW are partially or completely out of sequence, for example, in this embodiment, the steps S702, S703, and S706 are partially or completely out of sequence.

Method for informing management plane network element home base station to quit network by three control plane network element

In all the above methods and corresponding embodiments, the WFAP, the FeGW, and the Femto-AAA in the control plane network element notify the network element (SON Server, MgmtSystem) of the management plane that the hnb is quitted. The process of informing the network element of the management plane is as follows: the control plane network element sends the home base station network quit information to at least one of the SON Server and the Mgmt System, for example, the home base station network quit information is notified by sending an alarm. That is, the control plane network element notifies the management plane network element to perform network quitting processing on the femtocell, which can be performed in one of the following manners:

the first method is as follows: the method comprises the steps that a control plane network element sends home base station network quitting information to one of an SON Server and an Mgmt System, and one network element of the SON Server and the Mgmt System, which receives the network quitting information sent by the control plane network element, sends the home base station network quitting information to the other network element.

The second method comprises the following steps: and the control plane network element sends out the home base station network quitting information to the SON Server and the Mgmt System.

In the foregoing method and embodiment, the case that the WFAP or the FeGW notifies the management plane network element to handle the network quit of the home base station has been described. The fourth embodiment below is an example of home logout of a Femto-AAA notification management plane network element.

Example four

FIG. 8 is a flowchart of Femto-AAA notifying Mgmt System Home node B to quit network according to the fourth embodiment of the present invention; as shown in fig. 8, the Femto-AAA notifying Mgmt System home base station network quit condition includes the following two steps:

step S801, Femto-AAA sends a message to inform the Mgmt System femtocell of network quitting, wherein the message carries at least one of the following: the home base station identifier of the quit network, the type of the quit network of the home base station and the reason of the quit network of the home base station. Femto-AAA can Inform the Mgmt System using the Inform message defined by TR-069 protocol.

In step S802, the Mgmt System sends back a response message to Femto-AAA. The SONServer may respond to the Femto-AAA with an InformResponse message defined by the TR-069 protocol.

The method comprises the following steps that the Mgmt Systemt informs the SON Server of the network quit condition of the home base station, and the method comprises the following two steps;

step S803, the Mgmt System sends a message to inform the SON Server that the home base station quits the network, wherein the message carries at least one of the following: the home base station identifier of the quit network, the type of the quit network of the home base station and the reason of the quit network of the home base station.

In step S804, the SON Server sends back a response message to the Mgmt System.

In the above steps, step S903 follows step S901, and has no chronological relationship with step S902.

In the above step, after the management plane network element learns that the femtocell quits the network, the management plane network element needs to perform the network quitting processing of the femtocell.

In all the above methods and embodiments corresponding to all the methods, when the home base station needs to perform the network quitting processing of the home base station, first triggering to switch the terminals which obtain services from the home base station to other base stations, or triggering the terminals to execute the network quitting process, and then triggering other network elements to perform the network quitting processing flow of the home base station.

In all the above methods and embodiments corresponding to all the methods, after the network element receives the network quitting information of the home base station, the home base station network quitting processing of the corresponding network element is performed.

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

If the RADIUS protocol is adopted, the SeGW sends an Accounting-Request/Stop message for requesting to Stop Accounting to the Femto-AAA to inform the network quitting processing of the WFAP (namely, the SeGW sends the network quitting information of the home base station to the Femto-AAA, which is equivalent to the above description); Femto-AAA responds to SeGW with an Accounting-Response/Stop message indicating that Accounting is stopped, to confirm the logoff process for the femtocell (i.e. equivalent to Femto-AAA sending a corresponding Response message to SeGW as described above).

If the Diameter protocol is adopted, the SeGW notifies the network logout processing of the WFAP by sending an Accounting-Request (ACR) message defined by the protocol and/or a Session-Termination-Request (STR) message to the Femto-AAA (that is, the SeGW is equivalent to sending the home base station network logout information to the Femto-AAA as described above). The ACR message is used for requesting charging stop, and the STR message is used for requesting session termination; the Femto-AAA then confirms the logoff process for the femtocell by sending an Accounting-Answer (ACA) message and/or a Session-Termination-Answer (STA) message to the SeGW (that is, the same as the above-described Femto-AAA sends a corresponding response message to the SeGW).

An Authenticator (Authenticator) of the femtocell may be deployed in the SeGW, so that the above interaction between the Femto-AAA and the SeGW may also be understood as the interaction between the Femto-AAA and the Authenticator of the femtocell.

Preferably, in the embodiments corresponding to all the methods and all the methods, the interaction between the SeGW and the FeGW is performed through AAA messages, that is, messages in a Radius protocol or messages in a Diameter protocol are used to send home base station network withdrawal information and corresponding response messages; preferably, in the case of AAA message interworking, SeGW and FeGW message interworking interacts with the SeGW and AAA messages described above.

In all the above methods and embodiments corresponding to all the methods, preferably, if the SeGW and the FeGW are jointly configured, the interaction step between the SeGW and the FeGW does not exist.

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

Preferably, in the embodiments corresponding to all the methods and all the methods described above, the FeGW registered by the WFAP may be the same as the FeGW playing the role of AAA Proxy between the SeGW and Femto-AAA, and an abnormal network logout procedure of the femtocell when the FeGW registered by the femtocell is the same as the FeGW playing the role of AAA Proxy will be described below. In this case, the SeGW interacts with the Femto-AAA via the SeGW, so that other network elements do not need to separately notify the SeGW, and in the process of notifying the Femto-AAA by sending a message from the SeGW, the SeGW needs to pass through the SeGW serving as AAA Proxy, and after receiving the femtocell network withdrawal information sent by the SeGW, the SeGW continues to speak the femtocell network withdrawal information and sends the femtocell network withdrawal information to the Femto-AAA, and on the other hand, the SeGW knows the femtocell network withdrawal condition. After knowing the network quitting condition of the home base station, the FeGW can perform corresponding network quitting processing on the home base station. The description will now be made in conjunction with the second method and the corresponding embodiments.

In the description of the method two, step S3 is removed, and the Femto or SeGW notifies the Femto-GW to perform network logout processing of the Femto; and the FeGW acquires the network quitting of the home base station in the way that the SeGW sends the network quitting information of the home base station to the Femto-AAA in the step S4 that the SeGW notifies the Femto-AAA to carry out the network quitting processing of the home base station.

In the step described in embodiment two (fig. six) of method two, step S603 is removed, and in step S606, the SeGW (AAA proxy) obtains the Femto network resize information by sending the Femto network resize information to the Femto-AAA. Step S601 and step S606 in this embodiment are shown in fig. 9; step S601 corresponds to steps S901 to S902, and step S606 corresponds to steps S903 to S906. As described in detail below with reference to fig. 9, as shown in fig. 9, the process includes the following steps:

step S901, Femto-AAA sends a disconnection message (disconnect Request message when Radius protocol is used, or Abort-Session-Request (asr) Command when Diameter protocol is used) to SeGW via the FeGW, where the message carries at least one of the following: the home base station identifier of the quit network, the type of the quit network of the home base station and the reason of the quit network of the home base station.

Step S902, the SeGW sends the response message of the link-breaking request (Discconnect ACK or DisconnectictNACK message when the Radius protocol is adopted; Abort-Session-Answer (ASR) Command when the Diameter protocol is adopted) to the Femto-AAA via the FeGW.

Step S903, the SeGW sends a Request message carrying the femto network resignation information to the SeGW (for example, an Account Request (Stop) when a Radius protocol is adopted), where the message carries at least one of the following: the home base station identifier of the quit network, the type of the quit network of the home base station and the reason of the quit network of the home base station.

Step S904, the FeGW sends a message carrying network resize information of the hnb (e.g., Account Request (Stop) when using a Radius protocol) to the Femto-AAA, where the message carries at least one of the following: the home base station identifier of the quit network, the type of the quit network of the home base station and the reason of the quit network of the home base station.

In step S905, after receiving the network quitting information of the home base station sent by the Femto-AAA, the Femto-AAA responds a Response message of home network quitting to the Femto (for example, using a message Account Response (Stop)).

In step S906, the FeGW transmits a response message (e.g., Account Request (Stop) when the Radius protocol is used) to the SeGW.

As can be seen from the above steps, the FeGW obtains the network quitting information of the hnb in step S901 or step S903; the step triggered by the FeGW can only occur after the FeGW learns the femto network resignation information.

In the embodiments corresponding to all the methods and all the methods described above, the WFAP notifies the SeGW to perform the femto-resize operation (including the WFAP sending the femto-resize information to the SeGW and the SeGW sending the corresponding response message to the WFAP), or the SeGW notifies the WFAP to perform the femto-resize operation (including the SeGW sending the femto-resize information to the WFAP and the WFAP sending the corresponding response message to the SeGW), which is performed by using a message for operating the security tunnel between the WFAP and the SeGW, that is, it means that in the embodiments corresponding to all the methods and all the methods described above, it means the same meaning for requesting to delete the security tunnel and for processing the femto-resize. If IKEv2 protocol is adopted, the Request message sent by the WFAP to the SeGW or sent by the SeGW to the WFAP for tearing down the secure tunnel is an INFORMATION Request (Delete payload); the message sent by the SeGW to the WFAP or the WFAP to the SeGW tear down secure tunnel Response is information payload.

In all the above methods and embodiments corresponding to all the methods, the network element of the control plane (WFAP or FeGW or Femto-AAA) and the network element of the management plane (SON Server or Mgmt System) interact to perform the network logout processing of the home base station, and various network management protocols may be adopted, such as TR069, SNMP, DOCSIS, OMA-DM, and the like. If the TR069 protocol is adopted, the control plane network element informs the management plane network element home base station network quit information to adopt the following interactive flow: the control plane network element uses the Inform message to Inform, and the management plane network element uses the Inform response message to send back a response to the control plane network element; if the TR069 protocol is adopted, the management plane network element informs the control plane network element that the home base station quits the network by adopting the following interactive flow: the management plane network element sends a connection request (CONNECTIONREQUEST) to the control plane network element; the control plane network element sends an Inform message to the management plane network element; the management plane network element sends an inform response message to the control plane network element; the management plane network element sends a set parameter value (SetParameterValues) message to the control plane network element, and using the message, the management plane network element may notify the control plane network element of network quitting information of a certain specific femtocell.

In the embodiments corresponding to all the methods and all the methods, the interaction between the management plane network elements is similar to the flow of the interaction between the control plane network element and the management plane network element if the TR069 protocol is adopted; in addition, messages defined by an Operation Administration and Maintenance (OAM) system can also be used for interaction.

In the embodiments corresponding to all the methods and all the methods, one network element sends a message to another network element, which is used for triggering another network element to perform network quitting processing on the femtocell; the message carries at least one of the following information: the home base station identifier of the quit network, the type of the quit network of the home base station, the reason of the quit network of the home base station, the identifier of whether the context of the home base station is deleted or not, and the behavior of the home base station. The "whether to delete the context of the home base station" indicates whether the network element deletes the context information of the home base station stored in the network element, wherein the "home base station behavior" is used for indicating that the home base station which quits the network triggers the behavior of the service terminal obtained on the home base station, such as switching to other base stations, quitting the network and the like.

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

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, which means the same.

The control plane network element and the management plane network element in the invention are not absolutely divided, when the control plane network element and the management plane network element are communicated, if a management plane protocol is adopted, the control plane network element has the function of the management plane network element at the same time (for example, when the control plane network elements such as WFAP, FeGW and the like and the Mgmt System adopt the management plane protocol (for example, TR069) for communication, the control plane network element also resides in a client of the management plane at the same time, and has the function of the management plane at the same time); if the control plane protocol communication is adopted between the management plane network element and the management plane network element, the management plane network element also has the function of the control plane network element; if they adopt the upper application layer protocol to communicate, the control plane network element and the management plane network element both have the function of the data plane network element.

Through the embodiment of the invention, a complete home base station quitting process is provided, so that the SON server, the Mgmt System, the Femto-GW, the SeGW and the Femto-AAA can maintain correct home base station information and release related resources of the quitted home base station.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and they may alternatively be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, or fabricated separately as individual integrated circuit modules, or fabricated as a single integrated circuit module from multiple modules or steps. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (16)

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

the security gateway SeGW sends a message to at least one of predetermined network elements, wherein the predetermined network elements include at least one of the following: the home base station is accessed to a gateway Femto-GW and a home base station.

2. The method of claim 1,

and the message sent by the SeGW to the predetermined network element carries the network quitting information of the home base station.

3. The method of claim 1,

the network element which receives the message in the predetermined network element sends a first message to the network element which does not receive the message in the predetermined network element, wherein the first message carries the network quitting information of the femtocell; or,

and the SeGW sends the first message to the network elements which do not receive the message in the preset network elements.

4. The method of claim 1,

the SeGW sends the message 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 any one of claims 1 to 4, wherein after the predetermined network element receives network quit information of the home base station, the method further comprises:

and the network element which receives the network quitting information of the home base station in the preset network elements carries out the network quitting processing of the home base station.

6. The method according to claim 5, wherein the home base station performs network quitting processing of the home base station, and the network quitting processing comprises at least one of the following:

the femtocell triggers the terminal to switch from the femtocell to the neighboring base station; or,

and the home base station triggers the terminal to exit the network.

7. The method of claim 5, wherein the Femto-GW performing network resignation processing for the home base station comprises at least one of:

deleting a data channel between the Femto-GW and the home base station;

and the Femto-GW deletes the context information of the home base station.

8. The method of claim 1, further comprising: the SeGW performs network quitting processing of at least one of the following home base stations:

the SeGW sends a second message to the Femto-AAA, wherein the second message carries network quitting information of the femtocell;

the SeGW transmitting a request message for detaching a security tunnel between the home base station and the SeGW to the home base station, or the SeGW receiving the request message from the home base station;

and the SeGW deletes the context information of the home base station.

9. The method according to claim 1, wherein before the SeGW sends the message to at least one of the predetermined network elements, the method further comprises:

and the authentication authorization accounting server Femto-AAA sends a third message to the SeGW or sends a third message to the SeGW via the Femto-GW, wherein the third message carries the network quitting information of the femtocell.

10. The method of claim 8 or 9, further comprising: the Femto-AAA performs network quitting processing of the home base station, wherein the network quitting processing comprises at least one of the following steps:

the Femto-AAA updates the state information of the home base station;

and processing the charging of the home base station.

11. The method of claim 1,

and the Femto-AAA, the Femto-GW or the femtocell sends a fourth message to at least one of a self-organizing network server SON (self organizing network) server and a femtocell management System Mgmt System, wherein the fourth message carries the network quitting information of the femtocell.

12. The method of claim 11, wherein sending the fourth message to at least one of the SON server and the MgmtSystem by the Femto-AAA, the Femto-GW, or the home base station comprises:

the Femto-AAA, the Femto-GW or the femtocell sends the fourth message to the SON Server; after receiving the fourth message, the SON Server sends a fifth message to the Mgmt System, where the fifth message carries network exit information of the femtocell; or,

the Femto-AAA, the Femto-GW or the home base station sends the fourth message to the Mgmt System; after receiving the fourth message, the Mgmt System sends a sixth message to the SON Server, where the sixth message carries information of network logout of the femtocell; or,

and the Femto-AAA, the Femto-GW or the femtocell sends the fourth message to the SON Server and the Mgmt System.

13. The method according to claim 11 or 12,

and the SON Server and the network element in the Mgmt System which receives the network quitting information of the home base station perform network quitting processing of the home base station.

14. The method of claim 13, 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.

15. The method according to claim 13, 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:

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;

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

and sending alarm information.

16. The method according to claim 14 or 15,

updating the neighbor list includes at least one of: and deleting the femtocell from the neighbor cell list, or updating the state of the femtocell from the neighbor cell list.

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