CN102256287A

CN102256287A - Method and system for determining online status of household base station

Info

Publication number: CN102256287A
Application number: CN201010179747XA
Authority: CN
Inventors: 宋建全; 骆文; 褚丽; 曲红云; 许玲
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2010-05-19
Filing date: 2010-05-19
Publication date: 2011-11-23
Anticipated expiration: 2030-05-19
Also published as: CN102256287B

Abstract

The invention discloses a method for determining the online status of a household base station, which comprises the following steps: a household base station access gateway or the household base station activates a handshaking detection mechanism at preset time to detect the status of a link between the household base station access gateway and the household base station; and when the household base station access gateway detects the status change of the link, the household base station access gateway informs other network elements at the network side of the detected link status. The invention also discloses a system for determining the online status of a household base station, which comprises an activating unit and a first detecting unit, wherein the activating unit is used for activating the handshaking detection mechanism at the preset time; and the detecting unit is arranged in the household base station access gateway and is used for detecting the status of the link between the household base station access gateway and the household base station and informing other network elements at the network side of the detected link status when the link status change is detected. Through the method and system provided by the invention, the status of the current household base station can be reasonably distributed to network side resources.

Description

Determine the method and system of Home eNodeB presence

Technical field

The present invention relates to determine the connection status technology of Home eNodeB link, relate in particular to the method and system that a kind of definite Home eNodeB link is in chain rupture or connection status.

Background technology

For higher service rate being provided to the mobile subscriber and reducing the needed expense of high rate services of using; simultaneously also in order to reduce the investment that carrier network is disposed; remedy the deficiency that existing distributed cellular radio communication system covers; usually can in existing communication network, dispose base station from home (being also referred to as Home eNodeB), as replenishing to macro base station.The base station from home operated by rotary motion is used in places such as family, Administrative Areas.Base station from home is a kind of small-sized, lower powered base station, has advantages such as practicality, convenient, low-power output.

Fig. 1 is according to the network architecture schematic diagram behind the deployment Home eNodeB of prior art, as shown in Figure 1, the first half in the drawings is the grand station network diagram of not disposing Home eNodeB, comprise: macro base station Access Network (Macro ASN, Macro Access Service Network), core net (CSN, Connection ServiceNetwork), wherein, Macro ASN comprises: macro base station (BS, Base Station) and Access Network gateway (ASN-GW), CSN comprises authentication and authorization charging (AAA, Authentication, Authorizationand Accounting) server and home agent (HA, Home Agent).The latter half in the drawings is to dispose the network element that increases newly behind the Home eNodeB, comprises Home eNodeB Access Network (Femto ASN) and Home eNodeB core net, and wherein, the Home eNodeB core net is the network element that home base station network service provider (Femto NSP) provides.Femto ASN comprise Home eNodeB IAD (Femto-GW), self-organizing network server (SON Server, Self Organization Network Server) and security gateway (SeGW, SecurityGateway); Network element among the Femto NSP comprises management system (WFAP Mgmt System, WiMAX Femto Access Point Mgmt System), Home eNodeB aaa server and the Home eNodeB bootstrapping server (WFAP Bootstrap Server) of Home eNodeB.Need to prove that WFAP is identical with the Femto implication hereinafter, all be meant Home eNodeB.

In the network architecture behind above-mentioned deployment Home eNodeB, because Home eNodeB is by public network access to family base station network, the secure tunnel of SeGW and Home eNodeB (Secure Tunnel) has guaranteed that Home eNodeB is linked into the fail safe of home base station network by public network.Femto-GW exists data surface and chain of command passage as the IAD of Home eNodeB, and after the Home eNodeB success initialization, when providing service for travelling carriage, travelling carriage all will be transmitted by Femto-GW to control signaling between the CSN and data.SON Server is mainly used to Home eNodeB is carried out the automatic configuration of medium access control (MAC) layer/physics (PHY) layer parameter, Automatic Optimal and self-fault-finding and recovery.Whether WFAP-AAA is mainly used to authenticate the one family base station is the legal booking reader of this WFAP-NSP.WFAP-Mgmt System provides some upper-layer configured parameters except that MAC layer/PHY layer for Home eNodeB.

On Home eNodeB, be provided with two types of parameters in advance, all be and the irrelevant parameter of operator, for example, the trusted certificate of Home eNodeB (WFAP-Credentials); The parameter relevant with operator, for example, the universe name of the Home eNodeB bootstrapping server that operator provides (Bootstrap Server) (FQDN, FullyQualified Dornain Name).When Home eNodeB is linked into network, must find bootstrapping server, download initial parameter from bootstrapping server.Fig. 2 is the Home eNodeB initialization flowchart according to correlation technique, and as shown in Figure 2, the initialized detailed process of Home eNodeB comprises the steps:

Step 1, Home eNodeB is linked into broadband network, and the back bootstrapping powers on;

Step 2, Home eNodeB obtains its IP address by public network; If Home eNodeB does not have the FQDN of pre-configured bootstrapping server, this process also may be obtained the FQDN of bootstrapping server simultaneously;

Step 3 if Home eNodeB has only the FQDN of bootstrapping server, and does not have the IP address of bootstrapping server, and then Home eNodeB need pass through domain name resolution server (DNS, Domain Name System) process and obtains the IP address of bootstrapping server.

Step 4, Home eNodeB connects by setting up safety between pre-configured safety certificate and the bootstrapping server;

Step 5, Home eNodeB is connected to bootstrapping server, and the request initial configuration information.Home eNodeB provides for example GPS information etc. of its IP address and positional information to bootstrapping server, and the information that bootstrapping server provides according to Home eNodeB is selected a suitable SeGW.Bootstrapping server provides the IP address of SeGW to Home eNodeB, also provides management server WFAP Mgmt the FQDN of System simultaneously;

Step 6, secure tunnel between Home eNodeB foundation and the SeGW (SeGW distributes an Intranet IP address to Home eNodeB), and by SeGW and Femto-AAA contact, Femto-AAA finishes the authentication to Home eNodeB, that is, this Home eNodeB is the validated user of Femto NSP; Wherein SeGW is undertaken alternately by FeGW-A and Femto-AAA, and FeGW-A is equivalent to AAA Proxy here;

Step 7, Home eNodeB are obtained the IP address of WFAP Mgmt System (being also referred to as ManagementServer) by DNS;

Step 8, Home eNodeB are connected to WFAP Mgmt System, and Home eNodeB sends local information to management server, and wherein local information comprises the IP address, software and hardware version, positional information of WFAP etc.Based on these local informations, management server provides Home eNodeB high level (on MAC layer/PHY layer) configuration information, and these configuration informations comprise the IP address or the FQDN of SON server;

Step 9, if provide FQDN in step 8, then Home eNodeB also needs to obtain by DNS the IP address of SON server;

Step 10, Home eNodeB are connected to the SON server, and provide local information to the SON server, comprising the positional information of Home eNodeB.The SON server carries out location-authentication according to the positional information of Home eNodeB to Home eNodeB; Home eNodeB by location-authentication could be launched wireless signal in certain frequency range or frequency range.The SON server also can provide MAC layer/PHY layer configuration parameter to give Home eNodeB.The SON server also distributes a FeGW to be used for registration to WFAP simultaneously, is FeGW-B here.

Step 11, Home eNodeB is registered on Femto-GW; This step may also be included between Home eNodeB and the Femto-GW and set up data channel.

After above-mentioned steps, Home eNodeB enters operating state, can provide service for the travelling carriage in its coverage.After the Home eNodeB initialization procedure is meant that Home eNodeB is linked into broadband connection (for example Digital Subscriber Loop (DSL, Digital Subscriber Line) etc.) in a word, power on,, and can provide a series of processes of service to the user by authentication.

Fig. 3 is the Backhual flow chart of chain rupture whether of surveying Home eNodeB in the prior art, promptly surveys the flow process of Home eNodeB online (Backhaul is working properly) or off-line (Backhaul chain rupture), specifically comprises following detailed process.

At first Backhaul is divided into operating conditions (BackhualOperational, be that WFAP is online, WFAP can normally receive and dispatch by Backhaul) and status of fail (BackHualFailuer, promptly WFAP is in off-line, WFAP can not normally receive and dispatch by Backhaul).

When Backhaul was in running order, WFAP served as to send handshake information Keep Alive Req message to Femto GW at interval with timer (detection Timer), and the count value that sends the counter of message simultaneously is 0.If do not receive KeepAlive Rsp message before timer (KeepAliveRsp Timer) is overtime, then the count value of WFAP transmission message counter adds 1, if receive Keep Alive Rsp, resets to 0 when count value is not 0.If count value arrives the failure threshold value, then WFAP thinks that Backhaul is in status of fail;

When Backhaul was in status of fail, WFAP sent handshake information Keep Alive Req message with timer (restorationTimer).

If Femto GW does not receive KeepAlive Req message at timer (KeepAliveReq Timer) before overtime, then think the WFAP chain rupture; Then can send this failure of message informing SON Server Home eNodeB (being that WFAP is in off-line).

From the flow process of Fig. 3 as can be known, the Backhual of existing detection Home eNodeB whether the method for chain rupture there are the following problems:

1, Femto GW can't determine that beginning to be provided with timer when waits for that WFAP sends KeepAlive Req message.

2, WFAP self know whether online no doubt important, but other network element of network side such as FemtoGW, SON Server, Mgmt System etc. know whether WFAP online more important.It is not online even WFAP self has detected, because Backhaul chain rupture, WFAP can not notify other network element by Backhaul; And the network side network element knows whether WFAP online extremely important, these network elements may will distribute the relevant resource of this WFAP discharge or change the current described state of WFAP so that make suitable processing, for example can not be as the target BS of switching etc.If so whether online machine-processed even more important of network side network element active probe WFAP.

3, WFAP self detects when not online, and (MS MobileStation) can not obtain service, must the MS that obtains serving on it necessarily be handled, and solves the problem that MS can not obtain serving to a certain extent at its travelling carriage that obtains serving.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of method and system of definite Home eNodeB presence, can be according to current Home eNodeB state distribution network side resource reasonably.

For achieving the above object, technical scheme of the present invention is achieved in that

A kind of method of connection status of definite Home eNodeB link comprises:

Constantly default, starting shakes hands surveys mechanism, and Home eNodeB IAD or Home eNodeB are surveyed the state of link between Home eNodeB IAD and the Home eNodeB;

When the Home eNodeB IAD detects described link-state change, the state information of the described link that detected is sent to other network elements of network side.

Preferably, the described explorer of shaking hands is made as:

Home eNodeB sends handshake request message to the Home eNodeB IAD, and femto gateway sends handshake response message to the Home eNodeB IAD.

Preferably, when described Home eNodeB sends handshake request message to the Home eNodeB IAD, start the probe timer of Home eNodeB side, described Home eNodeB judges that according to one of following mode link is in off-state between this Home eNodeB and the described Home eNodeB IAD:

The overtime handshake response message that does not receive the transmission of Home eNodeB IAD of described probe timer;

Perhaps, the overtime handshake response message that does not receive the transmission of Home eNodeB IAD of described probe timer reaches set point number;

Preferably, described Home eNodeB judges that according to one of following mode link returns to connection status from off-state between described Home eNodeB and the described Home eNodeB IAD:

Described Home eNodeB receives the handshake response message that the Home eNodeB IAD sends;

Described Home eNodeB is not overtime at described probe timer, receives the handshake response message that the Home eNodeB IAD sends;

Described Home eNodeB is not overtime at described probe timer, and the handshake response message that receives the transmission of Home eNodeB IAD reaches set point number.

Preferably, the probe timer of described Home eNodeB IAD side one of meets the following conditions at least:

Start described probe timer in the default moment;

Perhaps, after described Home eNodeB IAD receives handshake request message, restart described probe timer;

Perhaps, described probe timer restarts described probe timer after overtime;

Preferably, described Home eNodeB IAD judges that according to one of following mode link is in off-state between described Home eNodeB IAD and the described Home eNodeB:

The overtime handshake request message that does not receive described Home eNodeB transmission of the probe timer of described Home eNodeB IAD side;

The overtime handshake request message that does not receive described Home eNodeB transmission of the probe timer of described Home eNodeB IAD side reaches set point number.

Preferably, described Home eNodeB IAD judges that according to one of following mode link returns to connection status from off-state between described Home eNodeB and the described Home eNodeB IAD:

Described Home eNodeB IAD receives the handshake request message that described Home eNodeB sends;

Described Home eNodeB IAD is in the not overtime handshake request message that receives the Home eNodeB transmission of described probe timer;

Described Home eNodeB IAD reaches set point number in the not overtime handshake request message that receives the Home eNodeB transmission of described probe timer.

Preferably, the described explorer of shaking hands is made as:

The Home eNodeB IAD sends handshake request message to Home eNodeB, and Home eNodeB sends the handshake request response message to the Home eNodeB IAD.

Preferably, described Home eNodeB IAD starts the probe timer of this Home eNodeB IAD side when Home eNodeB sends handshake request message, described Home eNodeB IAD judges that according to one of following mode link is in off-state between described Home eNodeB and the described Home eNodeB IAD:

Described Home eNodeB IAD is in the overtime handshake response message that does not receive described Home eNodeB transmission of described probe timer;

Described Home eNodeB IAD reaches set point number at the overtime response message that does not receive described Home eNodeB transmission of described probe timer.

Preferably, after described Home eNodeB link disconnected, described Home eNodeB IAD judged that according to one of following mode link is in connection status between described Home eNodeB and the described Home eNodeB IAD:

Described Home eNodeB IAD receives the handshake response message that described Home eNodeB sends;

Described Home eNodeB IAD is in the not overtime handshake response message that receives described Home eNodeB transmission of the probe timer of self;

Described Home eNodeB IAD reaches set point number in the not overtime response request message that receives the Home eNodeB transmission of the probe timer of self.

Preferably, the probe timer of described Home eNodeB side one of meets the following conditions at least:

Constantly default, start the probe timer of described Home eNodeB side;

Perhaps, receive after described Home eNodeB IAD sends handshake request message, restart described probe timer;

Perhaps, described probe timer restarts described probe timer after overtime;

Preferably, described Home eNodeB judges that according to one of following mode link is in off-state between described Home eNodeB and the described Home eNodeB IAD:

The overtime handshake request message that does not receive described Home eNodeB IAD transmission of the probe timer of described Home eNodeB side;

The overtime handshake request message that does not receive described Home eNodeB IAD transmission of the probe timer of described Home eNodeB side reaches set point number;

Preferably, after described Home eNodeB link disconnected, described Home eNodeB judged that according to one of following mode link is in connection status between described Home eNodeB and the described Home eNodeB IAD:

Described Home eNodeB receives the handshake request message that described Home eNodeB IAD sends;

Described Home eNodeB is in the not overtime handshake request message that receives described Home eNodeB IAD transmission of the probe timer of self;

Described Home eNodeB reaches the number of times of setting in the not overtime handshake request message that receives described Home eNodeB IAD transmission of the probe timer of self.

Preferably, described method also comprise following one of at least:

The network element of described network side judges that the state of link between described Home eNodeB and the described Home eNodeB IAD is after disconnection or the state of receiving link between described Home eNodeB and the described Home eNodeB IAD are disconnection information, discharge the related resource of this Home eNodeB, or change the state information of this Home eNodeB;

Perhaps, after the network element of described network side judges that state that the state of link between described Home eNodeB and the described Home eNodeB IAD becomes connection status by off-state or receives described link becomes the information of connection status by off-state, again be this Home eNodeB distribution related resource, or change the state information of this Home eNodeB;

Wherein, the network element of described network side be following one of at least: Access Network gateway, self-organizing network server S ON Server, the management system Mgmt System of Home eNodeB, authentication and authorization charging aaa server.

Preferably, described method also comprises:

When described Home eNodeB determined that Link State is off-state between this Home eNodeB and the described Home eNodeB IAD, the terminal that triggers in self sub-district was redirected in the adjacent base station cell, or triggered the terminal exiting network in self sub-district.

Preferably, the described default moment is that Home eNodeB carries out in the registration process or the moment after the registration at the Home eNodeB IAD.

Preferably, the described default moment, to be Home eNodeB carried out in the registration process or the moment after the registration at the Home eNodeB IAD, specifically comprises one of following:

Home eNodeB sends login request message or receives moment after come from Home eNodeB IAD registration response to the Home eNodeB IAD;

Described setting is in the Home eNodeB IAD opportunity after receiving the login request message that Home eNodeB sends or send moment behind the register requirement response message.

Preferably, described Home eNodeB determines that described explorer is made as described Home eNodeB and sends described handshake request message and/or described Home eNodeB IAD transmission handshake request message in the registration process of described Home eNodeB IAD;

A kind of system of definite Home eNodeB presence comprises Home eNodeB, and Home eNodeB IAD and other network side network elements; Described system also comprises the start unit and first probe unit; Wherein,

Start unit is used for constantly default, and starting shakes hands surveys mechanism;

Probe unit, be arranged in the Home eNodeB IAD, be used for the state of link between Home eNodeB IAD and the Home eNodeB is surveyed, when detecting described link-state change, with other network elements of state notifying network side of the described link that detected.

Preferably, the described explorer of shaking hands is made as:

Described Home eNodeB is in the not overtime handshake response message that receives the transmission of Home eNodeB IAD of described probe timer;

Described Home eNodeB reaches set point number in the not overtime handshake response message that receives the transmission of Home eNodeB IAD of described probe timer.

23, system according to claim 20, it is characterized in that, described Home eNodeB IAD is replied handshake response message after receiving handshake request message, and start the probe timer of described Home eNodeB IAD side, described Home eNodeB IAD judges that according to one of following mode link is in off-state between described Home eNodeB IAD and the described Home eNodeB:

Preferably, the described explorer of shaking hands is made as:

Described Home eNodeB IAD is in the overtime handshake response message that does not receive described Home eNodeB transmission of the probe timer of self;

Described Home eNodeB IAD reaches set point number at the overtime response message that does not receive described Home eNodeB transmission of the probe timer of self.

Preferably, the described default moment is that Home eNodeB carries out in the registration process or the moment after the registration at the Home eNodeB IAD; The described default moment, to be Home eNodeB carried out in the registration process or the moment after the registration at the Home eNodeB IAD, specifically comprises one of following:

Among the present invention, in the detection mechanism of shaking hands that starts the Link State of surveying between Home eNodeB IAD and the Home eNodeB on Home eNodeB and the Home eNodeB IAD, Home eNodeB and/or Home eNodeB IAD are surveyed the state of machine-processed detecting link by shaking hands accordingly, wherein, when family's base station IAD detects the state variation of link, also can notify other network side network element simultaneously, so that these network elements (comprising other network element of Home eNodeB IAD and network side) can suitably be handled or upgrade the relevant state information of Home eNodeB the resource relevant with Home eNodeB.The present invention can in time survey the Link State between Home eNodeB and the Home eNodeB IAD, like this, so that the network side network element is made suitable processing to Link State.

Description of drawings

Fig. 1 is according to the network architecture schematic diagram behind the deployment Home eNodeB of prior art;

Fig. 2 is the Home eNodeB initialization flowchart according to correlation technique;

Fig. 3 is the Backhual flow chart of chain rupture whether of surveying Home eNodeB in the prior art;

Fig. 4 is the flow chart that the present invention determines the method for Home eNodeB presence;

Fig. 5 is the flow chart that the present invention determines the method embodiment one of Home eNodeB presence;

Fig. 6 is the flow chart that the present invention determines the method embodiment two of Home eNodeB presence;

Fig. 7 is the flow chart that the present invention determines the method embodiment three of Home eNodeB presence;

Fig. 8 is the flow chart that the present invention determines the method embodiment four of Home eNodeB presence;

Fig. 9 is the flow chart that the present invention determines the method embodiment five of Home eNodeB presence;

Figure 10 is the flow chart that the present invention determines the method embodiment six of Home eNodeB presence;

Figure 11 determines the composition structural representation of the system of Home eNodeB presence for the present invention.

Embodiment

Basic thought of the present invention is, in the detection mechanism of shaking hands that starts the Link State of surveying between Home eNodeB IAD and the Home eNodeB on Home eNodeB and the Home eNodeB IAD, Home eNodeB and/or Home eNodeB IAD are surveyed the state of machine-processed detecting link by shaking hands accordingly, wherein, when family's base station IAD detects the state variation of link, also can notify other network side network element simultaneously, so that the processing that these network elements (comprising that the Home eNodeB IAD grows) are correlated with (for example, when the link that detects Home eNodeB is in off-state, discharge the resource relevant with Home eNodeB; Or then upgrade the link-state information of Home eNodeB when detecting the Home eNodeB link-state change); When Home eNodeB detects link and is in off-state, trigger from its terminal that obtains serving (for example travelling carriage) and be redirected to (for example switching) adjacent base station or move back net on every side.

For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.

Fig. 4 is the flow chart that the present invention determines the method for Home eNodeB presence, and as shown in Figure 4, the present invention determines that the method for Home eNodeB presence may further comprise the steps:

Step 401, when setting arrived opportunity, Home eNodeB IAD or Home eNodeB start to shake hands surveyed mechanism, and the state of link between Home eNodeB IAD and the Home eNodeB is surveyed.

Among the present invention, shake hands by setting and to survey the line states that mechanism is surveyed the link between Home eNodeB and the Home eNodeB IAD, concrete, the explorer of shaking hands is made as: Home eNodeB periodically sends handshake request message to the Home eNodeB IAD, and the Home eNodeB IAD sends handshake response message to Home eNodeB.When Home eNodeB sends handshake request message, enable the probe timer of Home eNodeB side, the overtime handshake response message that does not receive the transmission of Home eNodeB IAD of probe timer, perhaps, the overtime handshake response message that does not receive the transmission of Home eNodeB IAD of probe timer reaches set point number, determines that described link is in off-state; After described link disconnected, Home eNodeB continued periodically to send handshake request message (this cycle can be different with the link cycle just often) to the Home eNodeB IAD, and continues to enable the probe timer of Home eNodeB side; Home eNodeB receives the handshake response message that the Home eNodeB IAD is received, or the not overtime handshake response message that receives the transmission of Home eNodeB IAD of probe timer, perhaps the not overtime handshake response message that receives the transmission of Home eNodeB IAD of probe timer reaches set point number, determines that described link is in connection status;

The Home eNodeB IAD is in registration or restart the probe timer of Home eNodeB IAD side after the registration after enabling the probe timer of Home eNodeB IAD side or receiving handshake request message, and perhaps probe timer is restarted probe timer after overtime.Here, enable or to restart timer strategy and Link State irrelevant.Do not receive the handshake request message that Home eNodeB sends when probe timer is overtime, perhaps, the overtime handshake request message that does not receive the Home eNodeB transmission of probe timer reaches set point number, determines that described link is in off-state; After described link disconnects, the Home eNodeB IAD is received the handshake request message that Home eNodeB sends, perhaps probe timer is not overtime receives the handshake request message that Home eNodeB sends, perhaps the not overtime handshake request message that receives the Home eNodeB transmission of probe timer reaches set point number, determines that described link is in connection status.

Perhaps, the explorer of shaking hands is made as: the Home eNodeB IAD periodically sends handshake request message to Home eNodeB, and Home eNodeB sends handshake response message to the Home eNodeB IAD.When sending handshake request message, enables the Home eNodeB IAD probe timer of Home eNodeB IAD side, the overtime handshake response message that does not receive the Home eNodeB transmission of probe timer, perhaps, the overtime response message that does not receive the Home eNodeB transmission of probe timer reaches set point number, determines that described link is in off-state; After described link disconnects, the Home eNodeB IAD continues periodically to send handshake request message to Home eNodeB, and (cycle of Home eNodeB IAD transmission handshake request message can be identical under the normal and off-state of link, also can be different), and continue to enable probe timer.The Home eNodeB IAD receives the handshake response message that Home eNodeB sends, or the not overtime handshake response message that receives the Home eNodeB transmission of probe timer, perhaps the not overtime response request message that receives the Home eNodeB transmission of probe timer reaches the number of times of setting, determines that described link is in connection status;

Home eNodeB is enabled Home eNodeB side probe timer in registration or after the registration, perhaps receive and restart Home eNodeB side probe timer after the Home eNodeB IAD sends handshake request message, or described probe timer is restarted described probe timer after overtime.The overtime handshake request message that does not receive the transmission of Home eNodeB IAD of probe timer, perhaps, the overtime handshake request message that does not receive the transmission of Home eNodeB IAD of probe timer reaches set point number, determines that described link is in off-state; After described link disconnects, Home eNodeB receives the handshake request message that the Home eNodeB IAD sends, perhaps probe timer is not overtime receives the handshake request message that the Home eNodeB IAD sends, perhaps the not overtime handshake request message that receives the transmission of Home eNodeB IAD of probe timer reaches the careless of setting, determines that described link is in connection status;

Above-mentioned Home eNodeB carries out in the registration process or the moment after the registration at the Home eNodeB IAD.Concrete, be meant that Home eNodeB sends login request message or receives moment after come from Home eNodeB IAD registration response to the Home eNodeB IAD; Perhaps, above-mentioned setting is in the Home eNodeB IAD opportunity after receiving the login request message that Home eNodeB sends or send moment behind the register requirement response message.Here, handshake information can be the message that is similar to heartbeat message, promptly determines by periodically sending probe request message and response message whether the Home eNodeB that is connected with the Home eNodeB IAD is online.This handshake information can realize by existing request and response message, also can be provided with specially.It will be appreciated by those skilled in the art that and realize that above-mentioned handshake information is to realize easily.

Handshake request message of the present invention and handshake request response message can be various ways, for example KeepAlive Req message/Keep Alive Rsp message; This

When step 402, Home eNodeB IAD detect described link-state change, the state information of the described link that detected is sent to other network elements of network side.

After the state that other network element of above-mentioned network side receives described link is the information of off-state, other network element of described network side and/or Home eNodeB IAD discharge the related resource of this Home eNodeB, or change the state information of this Home eNodeB, for example changing the Home eNodeB link-state information is chain rupture (or off-line or failure) state;

After the state that other network element of described network side receives described link becomes the information of connection status by off-state, other network element of described network side and/or Home eNodeB IAD distribute related resource for this Home eNodeB again, or change the state information of this Home eNodeB, the link-state information of for example changing Home eNodeB is online (or work) state;

Wherein, described network side network element comprise following one of at least: Home eNodeB IAD, self-organizing network server S ON Server, the management system Mgmt System of Home eNodeB, authentication and authorization charging aaa server.

In addition, when Home eNodeB determined that described Link State is off-state, the terminal (comprising travelling carriage) that triggers in self sub-district was redirected (for example switching) in adjacent base station cell, or triggered the terminal exiting network in self sub-district.

Below by concrete example, the essence of technical solution of the present invention is described in further detail.

Embodiment one

Fig. 5 is the flow chart that the present invention determines the method embodiment one of Home eNodeB presence, and as shown in Figure 5, in this example, no matter WFAP is in online or off-line state, all is to send handshake request message with same period.Be that example describes with Keep Alive Req and Keep Alive Rsp as handshake request message and handshake response message in this specification, promptly realize surveying by request and acknowledge message; Link State is for normal or for operating state or be in the connection status equivalence between online and Home eNodeB and the Home eNodeB IAD of Home eNodeB in this specification, and Link State is improper or for status of fail or be in the off-state equivalence between Home eNodeB off-line and Home eNodeB and the Home eNodeB IAD.

WFAP is provided with and sends handshake request message timer Tsend timer, and length of timer is set for sending the cycle of handshake request message.This transmission Cycle Length is not less than WFAP at least and sends handshake request message and receive time interval between the handshake response message.

When WFAP after Femto GW finishes registration, WFAP just sends handshake request message (Keep AliveReq), and starts timer Tsend timer; In case timer expiry then resends handshake request message and restarts timer Tsend timer.

Among the present invention, Femto GW is provided with the duration that receives handshake request message timer Treq timer can guarantee can receive the handshake request message of a WFAP transmission at least under the normal link situation.

When WFAP after Femto GW finishes registration, Femto GW starts the timer Treq at this WFAP; If receive the handshake request message that WFAP sends, send handshake response message (Keep Alive Rsp) to WFAP, restart timer Treq simultaneously; If timer expiry is not received the handshake information of WFAP, then Femto GW judges that this WFAP is an off-line.

After Femto GW detects the WFAP off-line, notify other network side network element, be to be example with MgmtSystem here;

Behind the Treq timer expiry, Femto GW can have two kinds of processing methods: stop timer, in case receive the handshake request message of WFAP again, then restart timer Treq; Perhaps, restart timer, do not receive that handshake request message continues to restart timer after promptly overtime, but no longer send WFAP off-line notification message to other network element.

Femto GW judges that in the following manner WFAP changes presence from off-line: receive that WFAP sends handshake request message; Receive that continuously WFAP sends handshake request message number of times and reaches a threshold value.

WFAP judges that in the following manner self is from the online off-line that becomes: the threshold value that timer Trsp timer is set and does not receive handshake response message continuously; This timer Trsp timer duration guarantees at least that under normal circumstances (link is normal, and Femto GW receives and sends handshake response message after the handshake request message) can receive handshake response message one time, should satisfy Trsp＜Tsend here.Timer Trsp timer sends the startup of handshake request message at every turn at WFAP; Before timer expiry, receive handshake response message, then stop timer; If timer expiry is not received handshake response message, then expression is not received when time transmission handshake request message corresponding response message; Do not arrive threshold value if receive the response message number of times continuously, judge that WFAP is in off-line state.

When WFAP is in off-line state, WFAP will be redirected to neighbor base station from its travelling carriage that obtains serving, and perhaps trigger travelling carriage and move back net;

When WFAP is in off-line state, still periodically send handshake request message; Cycle is identical or different when can be with WFAP online, if different, then change the duration of timer Tsend timer or adopts the another one timer again.

WFAP judges from off-line state by the following formula mode and becomes presence: the threshold value that timer Trsp timer is set and receives handshake response message continuously; This timer Trsp timer duration guarantees at least that under normal circumstances (link is normal, and Femto GW receives and sends handshake response message after the handshake request message) can receive handshake response message one time, should satisfy Trsp＜Tsend here.Timer Trsp timer starts when WFAP sends handshake request message; Before timer expiry, receive handshake response message, then stop timer; If timer expiry is not received handshake response message, then expression is not received when time transmission handshake request message corresponding response message, arrives threshold value if receive the response message number of times continuously, judges that WFAP is in line states.

Embodiment two

Fig. 6 is the flow chart that the present invention determines the method embodiment two of Home eNodeB presence, as shown in Figure 6, this enforcement is to have carried out change slightly on the basis of previous embodiment one, promptly only judge that at WFAP the method that oneself state changes changes, arrive threshold value from the handshake information that does not receive continuously or receive continuously and change timer control into.Be described in detail as follows:

WFAP judges that the method that self becomes off-line state is:

Timer Trsp timer is set, and this timer duration guarantees at least that under normal circumstances (link is normal, and Femto GW receives and sends handshake response message after the handshake request message) can receive handshake response message one time.Timer Trsp timer starts when WFAP sends handshake request message; Before timer expiry, receive handshake response message, then restart timer Trsp; If timer expiry is not received handshake response message, then be judged as WFAP and be in off-line state, also restart timer Trsp simultaneously.

Here the Trsp timer duration is generally long than the Trsp timer duration among the embodiment 1, and the multiple that also usually is set to the Tsend duration adds a variable again.

The WFAP judgement is following method from the method that off-line state becomes presence:

Timer Trsp timer is set, and this timer duration guarantees at least that under normal circumstances (link is normal, and Femto GW receives and sends handshake response message after the handshake request message) can receive handshake response message one time.Timer Trsp timer starts when WFAP sends handshake request message; Under the WFAP off-line state, if before timer expiry, receive handshake response message, then restart timer Trsp, be judged as WFAP simultaneously and become presence from off-line state; If timer expiry is not received handshake response message, expression WFAP still is in off-line state, continues to restart timer and waits for reception handshake response message.

Here the Trsp timer duration is generally long than the Trsp timer duration among the embodiment one, and the multiple that also usually is set to the Tsend duration adds a variable again.

Embodiment two is also that with embodiment one difference the Starting mode of Trsp is different, and Trsp is that WFAP starts when sending handshake request message at every turn in embodiment one; And among the embodiment two Trsp except for the first time be WFAP send handshake request message initiated, all the other all be Trsp regularly overtime or receive handshake response message after start.

Embodiment three

Fig. 7 is the flow chart that the present invention determines the method embodiment three of Home eNodeB presence, and as shown in Figure 7, in this example, no matter WFAP is in online or off-line state, and the cycle that Femto GW sends handshake request message all is the same.

Femto GW is provided with and sends handshake request message timer Tsend timer, and length of timer is set for sending the cycle of handshake request message.This transmission Cycle Length is not less than Femto GW at least and sends handshake request message and receive time interval between the handshake response message.

When WFAP after Femto GW finishes registration, Femto GW just sends handshake request message to WFAP, and starts timer Tsend timer; In case timer expiry then resends handshake request message and restarts timer Tsend timer.

Femto GW judges that by the following formula mode WFAP is from the online off-line that becomes: the threshold value that timer Trsptimer is set and does not receive handshake response message continuously; This timer Trsp timer duration guarantees at least that under normal circumstances (link is normal, and WFAP receives and sends handshake response message after the handshake request message) can receive handshake response message one time, should satisfy Trsp＜Tsend here.Timer Trsp timer starts when Femto GW sends handshake request message at every turn; Before timer expiry, receive handshake response message, then stop timer; If timer expiry is not received handshake response message, then expression is not received when time transmission handshake request message corresponding response message, arrives threshold value if receive the response message number of times continuously, judges that WFAP is in off-line state.

After Femto GW detects the WFAP off-line, other network element of informing network side;

When Femto GW detects WFAP and is in off-line state, still periodically send handshake request message to WFAP; Cycle is identical or different when can be with WFAP online, if different, then change the duration of timer Tsend timer or adopts the timer of another one duration again.

Femto GW judges that by following manner WFAP becomes presence from off-line state: the threshold value that timer Trsp timer is set and receives handshake response message continuously; This timer Trsp timer duration guarantees at least that under normal circumstances (link is normal, and WFAP receives and sends handshake response message after the handshake request message) can receive handshake response message one time, should satisfy Trsp＜Tsend here.Timer Trsp timer starts when Femto GW sends handshake request message; Before timer expiry, receive handshake response message, then stop timer; If timer expiry is not received handshake response message, then expression is not received when time transmission handshake request message corresponding response message, arrives threshold value if receive the response message number of times continuously, judges that WFAP is in line states.

When Femto GW detect become presence from the WFAP off-line after, other network element of informing network side.

WFAP is provided with the duration that receives handshake request message timer Treq timer needs to guarantee can receive the handshake request message of a Femto GW transmission at least under the normal link situation;

When WFAP after Femto GW finishes registration, WFAP starts the timer Treq that sends handshake information at this Femto GW; If receive the handshake request message that Femto GW sends, timer Treq then resets; If timer expiry is not received the handshake information of Femto GW, then WFAP judges self off-line.

Behind the Treq timer expiry, WFAP can have two kinds of processing methods: stop timer, in case receive the handshake request message of Femto GW again, then restart timer Treq; Restart timer, do not receive that handshake request message continues to open again timer after overtime.

WFAP self becomes presence from off-line state by the following manner judgement: receive that Femto GW sends handshake request message; Receive that continuously Femto GW sends handshake request message number of times and surpasses a threshold value.

Embodiment four

Fig. 8 is the flow chart that the present invention determines the method embodiment four of Home eNodeB presence, as shown in Figure 8, this enforcement is to have carried out change slightly on the basis of previous embodiment three, promptly only judge that at Femto GW the method that the WFAP state changes changes, arrive threshold value from the handshake response message that does not receive continuously or receive continuously and change timer control into.Be described in detail as follows:

Femto GW judges that by following manner WFAP becomes off-line state: timer Trsp timer is set, this timer duration guarantees at least that under normal circumstances (link is normal, and WFAP receives and sends handshake response message after the handshake request message) can receive handshake response message one time.Timer Trsp timer starts when Femto GW sends handshake request message; Before timer expiry, receive handshake response message, then restart timer; If timer expiry is not received from WFAP handshake response message, then be judged as WFAP and be in off-line state, and continue to restart timer Trsp.

Femto GW judges that by following manner WFAP becomes presence: timer Trsp timer is set, this timer duration guarantees at least that under normal circumstances (link is normal, and WFAP receives and sends handshake response message after the handshake request message) can receive handshake response message one time.Timer Trsp timer starts when Femto GW sends handshake request message; Under the WFAP off-line state, if before timer Trsp is overtime, receive handshake response message, then restart timer, be judged as WFAP simultaneously and become presence from off-line state.

Embodiment four is also that with embodiment three differences the Starting mode of Trsp is different, and Trsp is that Femto GW starts when sending handshake request message at every turn in embodiment three; And among the embodiment four Trsp except for the first time be Femto GW send handshake request message initiated, all the other all be Trsp regularly overtime or receive handshake response message after start.

Embodiment five

Fig. 9 is the flow chart that the present invention determines the method embodiment five of Home eNodeB presence, as shown in Figure 9, is the schematic diagram of Femto GW with an embodiment of other network element of WFAP state (online or off-line) informing network side.

Step 1:Femto GW sends message informing WFAP state to other network element;

Femto GW detects in the first time and sends when WFAP becomes off-line state;

Femto GW detects afterwards when the WFAP state changes at every turn and sends;

Femto GW can directly send message to target network element;

Femto GW can be by other network elements WFAP state notifying to target network element.

Step 2: target network element sends response message to Femto GW, and the message that Femto GW sends is received in expression.

Embodiment six

Figure 10 is the flow chart that the present invention determines the method embodiment six of Home eNodeB presence, as shown in figure 10, is the schematic diagram of consulting an embodiment of handshake mechanism when WFAP registers.

This embodiment is to consult to start the mechanism that WFAP initiates handshake request message.

Step 1:WFAP sends login request message to Femto GW, wherein has to support WFAP to send handshake request message mechanism information;

After step 2:Femto GW receives login request message, check whether own ability supports WFAP to send handshake request mechanism,, then send to again to be with in the registration reply message of WFAP and support WFAP transmission handshake request information if support.

After step 2, show that WFAP and Femto GW support to send based on WFAP the mechanism of handshake request message, they start the mechanism of surveying the online or off-line of WFAP respectively then.

The present invention is not limited to the Home eNodeB WFAP of WiMAX and the Home eNodeB IAD Femto-GW among the WiMAX.

The present invention determines that the system of Home eNodeB presence comprises Home eNodeB, and Home eNodeB IAD and other network side network elements; The concrete annexation of network element is referring to earlier figures 1 in the network; Figure 11 determines the composition structural representation of the system of Home eNodeB presence for the present invention, as shown in figure 11, the present invention determines the system start-up unit 110 and first probe unit 111 of Home eNodeB presence; Wherein,

Start unit 110 is used for constantly default, and starting shakes hands surveys mechanism;

First probe unit 111, be arranged in the Home eNodeB IAD, be used for the state of link between Home eNodeB IAD and the Home eNodeB is surveyed, when detecting described link-state change, with other network elements of state notifying network side of the described link that detected.

The above-mentioned explorer of shaking hands is made as:

Survey mechanism corresponding to aforementioned shaking hands, when described Home eNodeB sends handshake request message to the Home eNodeB IAD, start the probe timer of Home eNodeB side, described Home eNodeB judges that according to one of following mode link is in off-state between this Home eNodeB and the described Home eNodeB IAD:

Survey mechanism corresponding to aforementioned shaking hands, described Home eNodeB judges that according to one of following mode link returns to connection status from off-state between described Home eNodeB and the described Home eNodeB IAD:

Survey mechanism corresponding to aforementioned shaking hands, described Home eNodeB IAD is replied handshake response message after receiving handshake request message, and start the probe timer of described Home eNodeB IAD side, described Home eNodeB IAD judges that according to one of following mode link is in off-state between described Home eNodeB IAD and the described Home eNodeB:

Survey mechanism corresponding to aforementioned shaking hands, described Home eNodeB IAD judges that according to one of following mode link returns to connection status from off-state between described Home eNodeB and the described Home eNodeB IAD:

The above-mentioned explorer of shaking hands is made as: the Home eNodeB IAD sends handshake request message to Home eNodeB, and Home eNodeB sends the handshake request response message to the Home eNodeB IAD.

Survey mechanism corresponding to above-mentioned shaking hands, described Home eNodeB IAD starts the probe timer of this Home eNodeB IAD side when Home eNodeB sends handshake request message, described Home eNodeB IAD judges that according to one of following mode link is in off-state between described Home eNodeB and the described Home eNodeB IAD:

Survey mechanism corresponding to above-mentioned shaking hands, after described Home eNodeB link disconnected, described Home eNodeB IAD judged that according to one of following mode link is in connection status between described Home eNodeB and the described Home eNodeB IAD:

Survey mechanism corresponding to above-mentioned shaking hands, described Home eNodeB sends handshake response message to described Home eNodeB IAD, and starts the probe timer of this Home eNodeB side after receiving described Home eNodeB IAD transmission handshake request message; Described Home eNodeB judges that according to one of following mode link is in off-state between described Home eNodeB and the described Home eNodeB IAD:

Survey mechanism corresponding to above-mentioned shaking hands, after described Home eNodeB link disconnected, described Home eNodeB judged that according to one of following mode link is in connection status between described Home eNodeB and the described Home eNodeB IAD:

Further, the network element of above-mentioned network side knows that the state of link between described Home eNodeB and the described Home eNodeB IAD for after disconnecting, discharges the related resource of this Home eNodeB, or changes the state information of this Home eNodeB;

After the state that the network element of described network side receives described link becomes the notice of connection status by off-state, be that this Home eNodeB distributes related resource again, or change the state information of this Home eNodeB;

Wherein, the network element of described network side is an one of the following: Access Network gateway, self-organizing network server S ONServer, the management system Mgmt System of Home eNodeB, authentication and authorization charging aaa server.

Further, when described Home eNodeB determined that Link State is off-state between this Home eNodeB and the described Home eNodeB IAD, the travelling carriage that triggers in self sub-district was redirected in the adjacent base station cell, or the travelling carriage that triggers in self sub-district moves back net.

Further, the described default moment is that Home eNodeB carries out in the registration process or the moment after the registration at the Home eNodeB IAD.The described default moment, to be Home eNodeB carried out in the registration process or the moment after the registration at the Home eNodeB IAD, specifically comprises one of following:

Those skilled in the art are to be understood that, the present invention determines that the system of Home eNodeB presence is for realizing that aforesaid the present invention determines that the method for Home eNodeB presence designs, and the realization function of above-mentioned each processing unit can be with reference to the associated description of preceding method and understood.The function of the each processing unit among the figure can realize by the program that runs on the processor, also can realize by concrete logical circuit.

The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.

Claims

1. the method for a definite Home eNodeB presence is characterized in that, described method comprises:

2. method according to claim 1 is characterized in that, the described explorer of shaking hands is made as:

3. method according to claim 2, it is characterized in that, when described Home eNodeB sends handshake request message to the Home eNodeB IAD, start the probe timer of Home eNodeB side, described Home eNodeB judges that according to one of following mode link is in off-state between this Home eNodeB and the described Home eNodeB IAD:

Perhaps, the overtime handshake response message that does not receive the transmission of Home eNodeB IAD of described probe timer reaches set point number.

4. method according to claim 3 is characterized in that, described Home eNodeB judges that according to one of following mode link returns to connection status from off-state between described Home eNodeB and the described Home eNodeB IAD:

5. method according to claim 2 is characterized in that, the probe timer of described Home eNodeB IAD side one of meets the following conditions at least:

Start described probe timer in the default moment;

Perhaps, described probe timer restarts described probe timer after overtime.

6. method according to claim 5 is characterized in that, described Home eNodeB IAD judges that according to one of following mode link is in off-state between described Home eNodeB IAD and the described Home eNodeB:

7. method according to claim 6 is characterized in that, described Home eNodeB IAD judges that according to one of following mode link returns to connection status from off-state between described Home eNodeB and the described Home eNodeB IAD:

8. method according to claim 1 is characterized in that, the described explorer of shaking hands is made as:

9. method according to claim 8, it is characterized in that, described Home eNodeB IAD starts the probe timer of this Home eNodeB IAD side when Home eNodeB sends handshake request message, described Home eNodeB IAD judges that according to one of following mode link is in off-state between described Home eNodeB and the described Home eNodeB IAD:

10. method according to claim 9 is characterized in that, after described Home eNodeB link disconnected, described Home eNodeB IAD judged that according to one of following mode link is in connection status between described Home eNodeB and the described Home eNodeB IAD:

11. method according to claim 8 is characterized in that, the probe timer of described Home eNodeB side one of meets the following conditions at least:

Constantly default, start the probe timer of described Home eNodeB side;

Perhaps, described probe timer restarts described probe timer after overtime.

12. method according to claim 11 is characterized in that, described Home eNodeB judges that according to one of following mode link is in off-state between described Home eNodeB and the described Home eNodeB IAD:

The overtime handshake request message that does not receive described Home eNodeB IAD transmission of the probe timer of described Home eNodeB side reaches set point number.

13. method according to claim 12 is characterized in that, after described Home eNodeB link disconnected, described Home eNodeB judged that according to one of following mode link is in connection status between described Home eNodeB and the described Home eNodeB IAD:

14. method according to claim 1 is characterized in that, described method also comprise following one of at least:

15., it is characterized in that described method also comprises according to claim 3 or 9 described methods:

16., it is characterized in that the described default moment is that Home eNodeB carries out in the registration process or the moment after the registration at the Home eNodeB IAD according to claim 1,5 or 11 described methods.

17. method according to claim 16 is characterized in that, the described default moment, to be Home eNodeB carried out in the registration process or the moment after the registration at the Home eNodeB IAD, specifically comprises one of following:

18. method according to claim 1, it is characterized in that, described Home eNodeB determines that described explorer is made as described Home eNodeB and sends described handshake request message and/or described Home eNodeB IAD transmission handshake request message in the registration process of described Home eNodeB IAD.

19. the system of a definite Home eNodeB presence comprises Home eNodeB, and Home eNodeB IAD and other network side network elements; It is characterized in that described system also comprises the start unit and first probe unit; Wherein,

20. system according to claim 19 is characterized in that, the described explorer of shaking hands is made as:

21. system according to claim 20, it is characterized in that, when described Home eNodeB sends handshake request message to the Home eNodeB IAD, start the probe timer of Home eNodeB side, described Home eNodeB judges that according to one of following mode link is in off-state between this Home eNodeB and the described Home eNodeB IAD:

22. system according to claim 20 is characterized in that, described Home eNodeB judges that according to one of following mode link returns to connection status from off-state between described Home eNodeB and the described Home eNodeB IAD:

23. system according to claim 20, it is characterized in that, described Home eNodeB IAD is replied handshake response message after receiving handshake request message, and start the probe timer of described Home eNodeB IAD side, described Home eNodeB IAD judges that according to one of following mode link is in off-state between described Home eNodeB IAD and the described Home eNodeB:

24. system according to claim 19 is characterized in that, the described explorer of shaking hands is made as:

25. system according to claim 24, it is characterized in that, described Home eNodeB IAD starts the probe timer of this Home eNodeB IAD side when Home eNodeB sends handshake request message, described Home eNodeB IAD judges that according to one of following mode link is in off-state between described Home eNodeB and the described Home eNodeB IAD:

26. system according to claim 24 is characterized in that, after described Home eNodeB link disconnected, described Home eNodeB IAD judged that according to one of following mode link is in connection status between described Home eNodeB and the described Home eNodeB IAD:

27. system according to claim 19 is characterized in that, the described default moment is that Home eNodeB carries out in the registration process or the moment after the registration at the Home eNodeB IAD; The described default moment, to be Home eNodeB carried out in the registration process or the moment after the registration at the Home eNodeB IAD, specifically comprises one of following: