CN102076036B

CN102076036B - Core network equipment and HNB, and method thereof for processing LIPA connection

Info

Publication number: CN102076036B
Application number: CN 201110008492
Authority: CN
Inventors: 周燕飞; 张娟; 艾明
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2011-01-14
Filing date: 2011-01-14
Publication date: 2013-04-24
Anticipated expiration: 2031-01-14
Also published as: CN102076036A; WO2012095014A1

Abstract

The invention discloses a core network equipment and an HNB (home nodeB), and a method thereof for processing a local IP to be accessed to LIPA (local IP access). The method comprises the following steps: after the source HNB determines that UE (user equipment) needs switching and LIPA connection is activated, indication information which is sent by a source HNB is received; after the phenomenon that the switching of the UE is carried out under the state of ensuring that the LIPA connection can be kept according to the indication information, contract signing data of the UE, and relevant information of local gateway, information about successful accessing is returned to the source HNB to instruct the source HNB to execute the operations concerning the switching of UE,. According to the invention, the traditional LIPA connecting process is simplified during switching, and the continuity of LIPA connection can be ensured during UE switching.

Description

Equipment of the core network is connected the method that processing LIPA connects with Home eNodeB

Technical field

The present invention relates to wireless communication technology field, relate in particular to a kind of under handoff scenario equipment of the core network be connected the method that processing LIPA connects with Home eNodeB.

Background technology

Local IP access (Local IP Access, LIPA) is that a kind of permission terminal is passed through the technology that Home eNodeB (Home NodeB, HNB) is linked into the local network related with this Home eNodeB, and local network comprises home network, enterprise network etc.Terminal specifically is linked into local network by the local gateway (Local Gateway, LGW) that is connected with Home eNodeB.

Because the access limited features of Home eNodeB and local network only allows the kinsfolk to access such as home network), network need to carry out access control to the terminal of access to family base station and local network, mainly comprises following control:

1) Home eNodeB access control is specially and judges that whether terminal satisfies the control requirement that is linked into Home eNodeB, judges namely also whether terminal has authority to pass through certain Home eNodeB access network;

2) local network access control, be specially and judge whether terminal satisfies the control requirement that is linked into local network, judge namely also whether terminal has authority to pass through certain Home eNodeB request and access specific local network such as home network or enterprise network etc., and the local network access control is carried out on the basis of Home eNodeB access control success.

Above-mentioned two steps operation is all carried out based on subscription data by core network control node.

In the 3GPP Release10 stage, as shown in Figure 1, local gateway LGW and Home eNodeB H (e) NB realize at same physical entity, H (e) NB is connected to H (e) NB gateway by backhaul network, and access mobile operator core network, the mobile operator core network is by gateway and PDN(Packet Date Network, Packet Data Network) connect.

Local gateway LGW can realize at different physical entities from Home eNodeB after Release10.Be illustrated in figure 2 as the LIPA Organization Chart in Release11 stage.

3GPP R10 version is not supported the mobility that LIPA connects, and needs deexcitation LIPA connection before switching when terminal shifts out the home base station cells that activates LIPA connection place.On the problem that deexcitation LIPA connects how, the scheme that standard adopts is to notify local gateway by Home eNodeB before switching, initiates to connect deactivation process release LIPA by local gateway and connects.

In addition, wherein a kind of not have the scheme of Engage of standard be to notify core network control node by Home eNodeB before switching, and core network control node is initiated LIPA and connected the backward Home eNodeB of deexcitation and return response, and Home eNodeB is initiated handoff procedure more subsequently.In the LTE system, such scheme as shown in Figure 3, MME(Mobility Management Entity wherein) be the core network control node in the LTE system, E-UTRAN(Evolved Universal Terrestrial Radio Access Network) referring to the radio access node of this moment also is Home eNodeB.Be illustrated in figure 3 as the LIPA that Home eNodeB triggers in the switching and connect deactivation process, specifically may further comprise the steps:

Step S301, switch when being about to occur, if the existing LIPA of terminal connects, then Home eNodeB sends to MME and local connection of indication E-UTRAN switches indication E-UTRAN Local Connection HO Indication message and show and be about to switch this moment that the target identification Target ID in the message shows the sign of handover-target base station;

Step S302 is not that last IP of terminal connects if this LIPA connects, and then MME initiates MME request PDN and goes to connect MME requested PDN disconnection process and discharge this connection; Otherwise initiation detachment process;

Step S303, after said process was finished, MME returned the local handover acknowledge E-UTRAN Local Connection HO ACK message that connects of E-UTRAN to Home eNodeB, and expression LIPA connection discharges, can switch.Home eNodeB will initiate to switch according to existing process subsequently.

According to the 3GPP demand, the LIPA in R11 stage connect to need supports the mobility of intra-LGW, and LIPA connects and can continue maintenance when also namely switching between terminal is being connected to the Home eNodeB of same LGW.Prior art is not supported above-mentioned mobility, do not solve how not judge that LIPA connects and can keep, and the problem of how carrying out respective handling according to judged result.

Summary of the invention

The invention provides a kind of equipment of the core network and be connected the method that processing LIPA connects with Home eNodeB, connect and process in order to optimize LIPA in the existing handoff procedure, so that the continuity that LIPA connects in the UE handoff procedure is kept.

The invention provides a kind of equipment of the core network and process the method that local IP access LIPA connects, comprising:

The reception sources Home eNodeB determines that UE need switch and when having activated LIPA and connecting, the Indication message that sends;

Subscription data and local gateway relevant information according to described Indication message, UE, when determining that UE can realize switching in the situation that keeps LIPA to connect, return the access success message to the source Home eNodeB, indicate described source Home eNodeB to begin to carry out the switching associative operation of described UE.

The present invention also provides a kind of Home eNodeB to process the method that local IP access LIPA connects, and comprising:

Determine that UE need switch and when having activated LIPA and connecting, send Indication message to equipment of the core network;

When receiving the access success message that described equipment of the core network returns, begin to carry out the switching associative operation of described UE, wherein, described equipment of the core network is according to subscription data and the local gateway relevant information of described Indication message, UE, when determining that UE can realize switching in the situation that keeps LIPA to connect, return the access success message to described Home eNodeB.

The present invention also provides a kind of equipment of the core network that local IP access LIPA connects of processing, and comprising:

The Indication message receiving element is used for that the reception sources Home eNodeB determines that UE need switch and when having activated LIPA and connecting, the Indication message that sends;

Access successful indicating member, be used for subscription data and local gateway relevant information according to described Indication message, UE, when determining that UE can realize switching in the situation that keeps LIPA to connect, return the access success message to the source Home eNodeB, indicate described source Home eNodeB to begin to carry out the switching associative operation of UE.

The present invention also provides a kind of Home eNodeB, comprising:

The Indication message transmitting element be used for to be determined that UE need switch and when having activated LIPA and connecting, is sent Indication message to equipment of the core network;

Switch unit, when being used for receiving the access success message that described equipment of the core network returns, begin to carry out the switching associative operation of described UE, wherein, described equipment of the core network is according to subscription data and the local gateway relevant information of described Indication message, UE, when determining that UE can realize switching in the situation that keeps LIPA to connect, return the access success message to described Home eNodeB.

Utilize equipment of the core network provided by the invention to be connected the method that processing LIPA connects with Home eNodeB, has following beneficial effect: proposed the processing method that LIPA connects under a kind of R11 stage handoff scenario, so that the continuity that LIPA connects is kept, whether the present invention keeps LIPA to connect judgement by equipment of the core network, because core network control node has the information of LIPA join dependency and the CAMEL-Subscription-Information of UE, the decision method of therefore being carried out by equipment of the core network is a kind of effective, complete method.

Description of drawings

The Organization Chart that Fig. 1 connects for existing 3GPP Release10 stage LIPA;

The Organization Chart that Fig. 2 connects for existing 3GPP Release11 stage LIPA;

Fig. 3 connects deactivation process for the LIPA that Home eNodeB in switching triggers;

Fig. 4 is that equipment of the core network provided by the invention is processed the method flow diagram that LIPA connects;

Fig. 5 is the method flow diagram that core net device processes LIPA connects in the preferred embodiment of the present invention;

Fig. 6 is the judging process of equipment of the core network in the preferred embodiment of the present invention;

Fig. 7 is the method flow diagram that core net device processes LIPA connects in the embodiment of the invention 1;

Fig. 8 is the method flow diagram that core net device processes LIPA connects in the embodiment of the invention 2;

Fig. 9 is the method flow diagram that core net device processes LIPA connects in the embodiment of the invention 4;

Figure 10 is the structure chart when equipment of the core network is applied to the LTE system in the preferred embodiment of the present invention.

Embodiment

Illustrate in greater detail below in conjunction with the method for drawings and Examples to equipment of the core network provided by the invention and processing LIPA connection thereof.

Mobility is not supported in the LIPA connection in 3GPP Release10 stage, needs first deexcitation LIPA to connect before the switching; And the LIPA in R11 stage connects and can support mobility, can keep this connection as long as satisfy certain condition during switching.Prior art does not propose under the above-mentioned scene LIPA and connects and how to process, and the present invention proposes a kind of equipment of the core network and processes the method that LIPA connects, and as shown in Figure 4, comprising:

Step S401, reception sources Home eNodeB determine that UE need switch and when having activated LIPA and connecting, the Indication message that sends;

For the terminal that activates the LIPA connection, above-mentioned LIPA connects and refers to that terminal is linked into the connection of local gateway by the source Home eNodeB.Above-mentioned Indication message comprises Target cell and/or the target BS information of switching at least.

Step S402, subscription data and local gateway information according to described Indication message, UE, when determining that UE can realize switching in the situation that keeps LIPA to connect, return the access success message to the source Home eNodeB, indicate described source Home eNodeB to carry out the switching associative operation of described UE.

Said method provided by the invention, indicate based on the source Home eNodeB, equipment of the core network as core network control node carries out LIPA connection processing: for the terminal that activates the LIPA connection, Home eNodeB sends Indication message at beginning forward direction core network control node, core network control node is according to Indication message, the subscription data of UE and local gateway information, judge whether the LIPA connection can continue to keep when Target cell/target BS switches, if LIPA connects and can keep, then core network control node notice Home eNodeB begins handoff procedure, connect owing to discharge LIPA, therefore so that the continuity that LIPA connects kept.Whether the present invention keeps LIPA to connect judgement by equipment of the core network, because core network control node has the information of LIPA join dependency and the CAMEL-Subscription-Information of UE, the decision method of therefore being carried out by equipment of the core network is a kind of effective, complete method.

Be Home eNodeB for target BS, and the situation that UE keeps former LIPA to connect when switching, UE finishes when switching, its LIPA connection meeting is by changing into by target Home eNodeB access local gateway by source Home eNodeB access local gateway, the concrete change of when finishing this connection, preferably, discharging former LIPA after the new LIPA connection of setting up by target Home eNodeB access local gateway connects again, concrete switching and the dispose procedure of UE can adopt existing procedure, present embodiment no longer describes in detail, above-mentioned flow process of the present invention is so that also keep when beginning to switch original LIPA to connect and do not have the former LIPA of deexcitation to connect, thereby the continuity that can keep LIPA to connect.

Under the different scenes support UE is switched the condition difference that can keep the LIPA connection to satisfy, therefore, can according to concrete scene to whether satisfying the judgement that imposes a condition, determine whether whether UE can realize switching in the situation of maintenance LIPA connection.In order to support whether satisfy the judgement that imposes a condition, can in Indication message, carry some required parameters of condition judgment, or judge some required parameters in the configuration condition of equipment of the core network own.

Connect the mobility that needs to support intra-LGW for the LIPA in R11 stage, LIPA connects and can continue maintenance when also namely switching between terminal is being connected to the Home eNodeB of same LGW.Preferably, when determining to satisfy following condition simultaneously in the present embodiment, determine that UE can realize switching in the situation that keeps LIPA to connect: the target BS of switching is Home eNodeB; UE satisfies the access control requirement that is linked into target BS; UE satisfies the access control requirement of the local network that is linked into the request access; Target BS is for to be connected to same local gateway with the source Home eNodeB.

If UE switches to macro base station, illustrate and do not possess the condition that is linked into local network, therefore need to discharge LIPA and connect, preferably, the method is applied to the LTE system, the method also comprises in the present embodiment: according to described Indication message, when determining that target BS is macro base station, judge whether the LIPA connection of UE is that last IP connects, if, then initiate the detachment process of UE, whole process finishes; If not, then initiate the LIPA that LIPA Connection Release process discharges UE and connect, discharge successfully that backward source Home eNodeB returns the access success message, indicate described source Home eNodeB to begin to carry out the switching associative operation of UE.The method can also be applied to the UMTS system, also comprise: according to described Indication message, when determining that target BS is macro base station, then initiate the LIPA connection that LIPA Connection Release process discharges UE, discharge successfully that backward source Home eNodeB returns the access success message, indicate described source Home eNodeB to begin to carry out the switching associative operation of UE.The detachment process of the above-mentioned UE that is initiated by equipment of the core network and discharge the process that LIPA connects and adopt existing procedure no longer describes in detail here.

If target BS is Home eNodeB, need to judge whether terminal has authority to pass through certain Home eNodeB access network, and whether terminal has authority to ask the local network that accesses and target BS and source Home eNodeB whether to be connected to same local gateway by this target Home eNodeB access.If these conditions all satisfy, UE satisfies the access control be linked into described target BS and requires to be connected with LIPA continuous requirement.Do not satisfy the access control requirement that is linked into described target BS at UE, illustrate that UE can successfully not be linked into target BS corresponding to Target cell, do not satisfy the access control requirement that is linked into the local network of asking access at UE, illustrate that UE can successfully not be linked into local network.Preferably, the method also comprises in the present embodiment: according to described Indication message, when determining that target BS is Home eNodeB, but UE does not satisfy the access control be linked into described target BS when requiring, and returns the access failure message that indication UE can not access target BS to the source Home eNodeB.The source Home eNodeB receives after this access failure message by the existing flow processing of receiving access failure message, such as the target BS that can change the request access according to the access failure reason etc., no longer describes in detail here.

Preferably, the method is applied to the LTE system, the method also comprises in the present embodiment: according to described Indication message, when determining that target BS is Home eNodeB, the satisfied access control requirement that is linked into described target BS of UE, described target BS is when being connected to different local gateway from the source Home eNodeB but the satisfied access control that is linked into the local network of request access of UE requires, and judges whether the LIPA connection of UE is last IP connection, if then initiate the detachment process of UE; If not, then initiate the LIPA that LIPA Connection Release process discharges UE and connect, discharge successfully that backward source Home eNodeB returns the access success message, indicate described source Home eNodeB to begin to carry out the switching associative operation of UE.The method can also be applied to the UMTS system, the method also comprises in the present embodiment: according to described Indication message, determine that target BS is Home eNodeB, UE satisfies the access control requirement that is linked into described target BS, the access control of the local network that is linked into the request access requires or/and described target BS is when being connected to different local gateway from the source Home eNodeB but UE does not satisfy, initiate the LIPA connection that LIPA Connection Release process discharges UE, discharge successfully that backward source Home eNodeB returns the access success message, indicate described source Home eNodeB to begin to carry out the switching associative operation of UE.The source Home eNodeB is received after this access failure message and no longer to be described in detail here by the existing flow processing of receiving access failure message.

Preferably, the Target cell and/or the target BS information that comprise switching in the present embodiment indicating message, when target BS is Home eNodeB, Indication message also comprises closed subscriber group identity and the access module of target BS, the customer group that different closed subscriber group identity is corresponding different, Home eNodeB allows the corresponding user user inside the group access of its closed subscriber group identity, and existing home base station access mode comprises the closed access way that only allows the corresponding user user inside the group access of its closed subscriber group identity, allow the open access way of all user's accesses, and allow all users' accesses but the corresponding user user inside the group of its closed subscriber group identity accesses the high mixing access way of priority.

Preferably, equipment of the core network determines according to Target cell and/or the target BS information of the switching in the Indication message whether the target BS that switches is Home eNodeB in the present embodiment; When determining that target BS is Home eNodeB, according to closed subscriber group identity and the access module of target BS, determine in conjunction with the subscription data of UE whether UE satisfies the access control requirement that the access control that is linked into target BS required and be linked into the local network of request access.Described local gateway relevant information is the femtocell information that different local gateways connect, the relevant configured in advance of described local gateway on described equipment of the core network, or the local gateway information that connects by the different home base station report acquisition.

The embodiment of the invention also provides a kind of Home eNodeB to process the method that local IP access LIPA connects, and comprising: determine that UE need switch and when having activated LIPA and connecting, send Indication message to equipment of the core network; When receiving the access success message that described equipment of the core network returns, begin to carry out the switching associative operation of described UE.

In the method provided by the invention, Home eNodeB switches and activates LIPA at definite UE, is different from the behavior that direct deactivation LIPA connects in the prior art, but by the equipment of the core network whether LIPA deexcitation of making a strategic decision, the continuity that has kept LIPA to connect.

Preferably, also comprise: when receiving the access failure message that described equipment of the core network returns, carry out respective handling according to the access failure reason.The Target cell and/or the target BS information that comprise switching in the described Indication message, when described target BS was Home eNodeB, described Indication message also comprised closed subscriber group identity and the access module of target BS.

In the preferred embodiment of the present invention, as shown in Figure 5, comprising:

1, for having activated the terminal that LIPA connects, Home eNodeB sent i.e. the first message of Indication message to the equipment of the core network as core network control node before switching generation, the identification information such as Base Station Identification, the cell ID etc. that wherein comprise target BS, if target BS is Home eNodeB, also should comprise the information such as closed subscriber group identity, access module of target BS;

2, when target BS is Home eNodeB, equipment of the core network judges that whether UE can realize switching, and judges to be divided into for two steps in the situation that keeps LIPA to connect:

A) basic access control is judged namely whether UE satisfies the access control requirement that is linked into target BS, if so, then enters next step judgement, otherwise was entered for the 4th step;

B) LIPA connects judgement, judge whether UE can realize switching in the situation that keeps LIPA to connect, as judge access control that whether UE satisfies the local network that is linked into the request access requires and target BS for whether to be connected to same local gateway with the source Home eNodeB, if, then entered for the 4th step, otherwise entered for the 3rd step;

3, for the LTE system, if equipment of the core network judges that the LIPA connection can not keep and this connection is not last IP connection of UE, then initiate LIPA Connection Release process, this process is undertaken by existing procedure.If last IP that the LIPA connection can not keep and this connection is UE connects, then initiate detachment process, after attachment removal was finished, whole process finished; For the UMTS system, then do not need to carry out attachment removal and judge, directly initiate LIPA Connection Release process;

4, equipment of the core network returns the second message to Home eNodeB.If the basic access control failure of the 2nd step also is that terminal can not access target BS, then the second message is specially the failure information that does not allow UE access target BS; If the 2nd basic access control of step and LIPA connect adjudicate successfully, or the 3rd step discharged the LIPA connection and equipment of the core network is not initiated detachment process, then the second message is specially the access success message.

5, after the source Home eNodeB is received the second message, if comprising the access successful information, then initiate the switching associative operation of UE according to existing process; Otherwise process according to the existing process of above-mentioned access failure message of receiving.

The judging process of equipment of the core network comprises as shown in Figure 6 in the present embodiment:

Step S601, reception sources Home eNodeB determine that UE need switch and when having activated LIPA and connecting, the first message that sends, and start following judging process;

Step S602 judges whether target BS is macro base station, and if so, then direct execution in step S605 if the fruit target BS is Home eNodeB, then enters step S603;

Step S603 carries out basic access control, judges whether success of basic access control, if success then execution in step S604, otherwise execution in step S608; Basic access control deterministic process is existing process, judges that desired parameters is provided by the first message, comprises target BS sign, cell ID, closed subscriber group identity, access module etc.;

Step S604, if basic access control success, equipment of the core network continues to judge that LIPA connects whether can keep, subscription data, the configuration information that equipment of the core network can be by UE and the parameter of carrying in the message of being connected judge that can the LIPA connection keep.If judged result is yes, execution in step S607 then, otherwise execution in step S605;

Step S605, for the LTE system, equipment of the core network judges that whether this LIPA connects is last IP connection of UE, if so, enters step S609, otherwise enters step S606, for UMTS system, execution in step S606;

Step S606, equipment of the core network initiate LIPA Connection Release process;

Step S607, the success of LIPA Connection Release or LIPA connect and can continue to keep, and then core network control node returns the second message, wherein carries the access success message, show that Home eNodeB can carry out the switching associative operation;

Step S608, if basic access control failure, then equipment of the core network returns second message of carrying access failure information, access failure information is that UE can not access Target cell;

Step S609, if the LIPA connection can not keep and be last connection, equipment of the core network is initiated detachment process.

Being operating as of Home eNodeB in the present embodiment:

Need to switch and terminal when having LIPA to connect when detecting, send the first message to equipment of the core network, comprising target BS sign, cell ID, also comprise closed subscriber group identity, access module etc. if Target cell is home base station cells.

When receive that core network control node returns with the second message of access successful information the time, Home eNodeB is carried out by existing process and is switched associative operation; Process by existing process can not access second message of access failure information of Target cell with terminal the time when receiving.

Provide several specific embodiments of the method for equipment of the core network of the present invention and processing LIPA connection thereof below in conjunction with concrete application scenarios.

Embodiment 1

In the LTE system, terminal has activated the LIPA connection in the one family base station cell, subsequently because switching need to be initiated in the mobile household base station of terminal.If this moment, target BS was the Home eNodeB that is connected to same local gateway with the source Home eNodeB, this Home eNodeB has identical closed subscriber group identity with the source Home eNodeB, and between source and the target Home eNodeB X2 interface is arranged.Core network control node MME will judge LIPA and connect and can keep.LIPA connects processing procedure as shown in Figure 7 under this scene, comprising:

Step S701, the source Home eNodeB sends the first message to MME, wherein comprises cell ID, Base Station Identification and the closed subscriber group identity etc. of target Home eNodeB;

Step S702, MME can judge that according to the information of CAMEL-Subscription-Information, local gateway relevant information and the previous step acquisition of UE the LIPA connection can continue to keep when switching to target BS, deterministic process is as follows:

A) MME carries out the basic access control of Home eNodeB, because the target BS closed subscriber group identity is signatory, and basic access control success;

When b) MME determined that the satisfied local network access control that is linked into the request access of UE requires, MME judged whether target BS is connected to same local gateway with source base station.According to the cell ID in the first message, Base Station Identification, and the local gateway that has been configured of MME and corresponding femtocell information thereof, MME can be known the shared same local gateway of target BS and source base station.

Step S703, MME return second message of carrying the access successful information to the source Home eNodeB;

Step S704, the source Home eNodeB initiates to switch according to existing process, and this switching is that an X2 switches.

Embodiment 2

In the UMTS system, terminal has activated the LIPA connection in the one family base station and this connection is not unique connection of terminal, and owing to the movement of terminal, Home eNodeB need to initiate to switch subsequently.If this moment, target BS was macro base station, core network control node SGSN will judge LIPA and connect and can not keep.LIPA connects processing procedure as shown in Figure 8 under this scene.

Step S801, Home eNodeB sends the first message to equipment of the core network SGSN, comprising the correlated identities of target BS such as cell ID etc.;

Step S802, SGSN according to the first message as can be known Target cell be macro base station, therefore judge that LIPA connects can not keep;

Step S803, SGSN connects to discharge LIPA according to existing procedure initiation packet data protocol content PDP Context dispose procedure;

Step S804, SGSN returned second message of carrying the access successful information after the LIPA Connection Release was finished to Home eNodeB;

Step S805, Home eNodeB initiates to switch according to existing process, and this switches to S1 and switches.

Embodiment 3

Be that with embodiment 1 difference switching target small area is that terminal not have the home base station cells of contracting, and do not have X2 interface between the source, Target cell.This moment is as follows as the operation of the equipment of the core network of core network control node:

1) receives the first message, because Target cell is home base station cells, will carry out basic access control process;

2) the target home base station cells because terminal is contracted, basic access control failure, core network control node returns second message of carrying access failure information to the source Home eNodeB.

The source Home eNodeB operates according to prior art after receiving above-mentioned the second message, as select other Target cell for terminal.

Embodiment 4

In the LTE system, terminal has activated the LIPA connection in the one family base station cell, subsequently because switching need to be initiated in the mobile household base station of terminal.If this moment, the target home base station cells was the home base station cells of terminal unit contractual, but be connected to different local gateways from the source Home eNodeB.Core network control node MME will judge LIPA and connect and can not keep.LIPA connects processing procedure as shown in Figure 9 under this scene, comprising:

Step S901, the source Home eNodeB sends the first message to MME, wherein comprises cell ID, Base Station Identification, closed subscriber group identity of target Home eNodeB etc.;

Step S902, MME can judge that according to the information of CAMEL-Subscription-Information, local gateway relevant information and the previous step acquisition of UE the LIPA connection can not continue to keep when switching to target BS, deterministic process is as follows:

When b) MME determined that the satisfied local network access control that is linked into the request access of UE requires, MME judged whether target BS is connected to same local gateway with source base station.According to the Base Station Identification in the first message, cell ID, and the local gateway that has been configured of MME and corresponding femtocell information thereof, MME can know that target BS and source base station are connected to different local gateways.

Step S903, MME initiates the LIPA Connection Release.

Step S904, MME return second message of carrying the access successful information to the source Home eNodeB;

Step S905, the source Home eNodeB begins to switch associative operation according to existing process.

The embodiment of the invention also provides a kind of equipment of the core network that local IP access LIPA connects of processing, as shown in figure 10, comprise: Indication message receiving element 101 is used for that the reception sources Home eNodeB determines that UE need switch and when having activated LIPA and connecting, the Indication message that sends; Access successful indicating member 102, be used for subscription data and local gateway relevant information according to described Indication message, UE, when determining that UE can realize switching in the situation that keeps LIPA to connect, return the access success message to the source Home eNodeB, indicate described source Home eNodeB to begin to carry out the switching associative operation of described UE.

Preferably, when the successful indicating member 102 of described access specifically was used for determining to satisfy following condition simultaneously, determine that UE can switch in the situation that keeps LIPA to connect in realization: the target BS of switching was Home eNodeB; UE satisfies the access control requirement that is linked into described target BS; UE satisfies the access control requirement of the local network that is linked into the request access; Target BS is for to be connected to same local gateway with the source Home eNodeB.

Preferably, equipment of the core network is applied to the LTE system, be the structure chart that the present embodiment equipment of the core network is applied to the LTE system such as Figure 10, also comprise: the first attachment removal unit 103, be used for according to described Indication message, when determining that target BS is macro base station, judge whether the LIPA connection of UE is that last IP connects, if then initiate the detachment process of UE; The first Connection Release and indicating member 104, be used for the judgement according to the first attachment removal unit, the LIPA connection of determining UE is not that last IP connects, initiate the LIPA connection that LIPA Connection Release process discharges UE, discharge successfully that backward source Home eNodeB returns the access success message, indicate described source Home eNodeB to begin to carry out the switching associative operation of described UE.Described equipment of the core network can also be applied to the UMTS system, also comprise: the second Connection Release and indicating member, be used for according to described Indication message, when determining that target BS is macro base station, then initiate the LIPA connection that LIPA Connection Release process discharges UE, discharge successfully that backward source Home eNodeB returns the access success message, indicate described source Home eNodeB to begin to carry out the switching associative operation of UE.

Preferably, equipment of the core network also comprises: access failure indicating member 105, be used for according to described Indication message, when determining that target BS is Home eNodeB, but when the satisfied access control that is linked into target BS of UE requires, return the access failure message that indication UE can not access target BS to the source Home eNodeB.

Preferably, equipment of the core network is applied to the LTE system, also comprise: the second attachment removal unit 106, be used for according to described Indication message, determine that target BS is Home eNodeB, UE satisfies the access control requirement that is linked into described target BS, the access control of the local network that is linked into the request access requires or/and described target BS is when being connected to different local gateway from the source Home eNodeB but UE does not satisfy, whether the LIPA connection of judging UE is that last IP connects, if then initiate the detachment process of UE; The 3rd Connection Release and indicating member 107, be used for the judgement according to the second attachment removal unit, the LIPA that determines UE connects when not being last IP connection, initiate the LIPA connection that LIPA Connection Release process discharges UE, discharge successfully that backward source Home eNodeB returns the access success message, indicate described source Home eNodeB to begin to carry out the switching associative operation of described UE.Described equipment of the core network can also be applied to the UMTS system, also comprise: the 4th Connection Release and indicating member, according to described Indication message, determine that target BS is Home eNodeB, UE satisfies the access control requirement that is linked into described target BS, the access control of the local network that is linked into the request access requires or/and described target BS is when being connected to different local gateway from the source Home eNodeB but UE does not satisfy, initiate the LIPA connection that LIPA Connection Release process discharges UE, discharge successfully that backward source Home eNodeB returns the access success message, indicate described source Home eNodeB to begin to carry out the switching associative operation of UE.

Preferably, comprise Target cell and/or the target BS information of switching in the described Indication message, when described target BS was Home eNodeB, described Indication message also comprised closed subscriber group identity and the access module of target BS; The successful indicating member of described access, the first attachment removal unit, the second Connection Release and indicating member, access failure indicating member, the second attachment removal unit and the 4th Connection Release and indicating member specifically are used for determining according to the Target cell of described switching and/or target BS information whether the target BS that switches is Home eNodeB; The successful indicating member of described access, access failure indicating member, the second attachment removal unit and the 4th Connection Release and indicating member specifically are used for closed subscriber group identity and the access module according to target BS, determine in conjunction with the subscription data of UE whether UE satisfies the access control requirement that the access control that is linked into described target BS required and be linked into the local network of request access.

Present embodiment also provides a kind of Home eNodeB, comprising: the Indication message transmitting element, and be used for to determine that UE need switch and when having activated LIPA and connecting, send Indication message to equipment of the core network; Switch unit when being used for receiving the access success message that described equipment of the core network returns, begins to carry out the switching associative operation of described UE.

Preferably, this Home eNodeB also comprises: the failure handling unit, when being used for receiving the access failure message that described equipment of the core network returns, carry out respective handling according to the access failure reason.

Preferably, comprise Target cell and/or the target BS information of switching in the Indication message that the Indication message transmitting element sends, when described target BS was Home eNodeB, described Indication message also comprised closed subscriber group identity and the access module of target BS.

Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, complete implement software example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form of the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.

The present invention is that reference is described according to flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device producing a machine, so that the instruction of carrying out by the processor of computer or other programmable data processing device produces the device of the function that is used for being implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.

These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, so that the instruction that is stored in this computer-readable memory produces the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.

These computer program instructions also can be loaded on computer or other programmable data processing device, so that carry out the sequence of operations step producing computer implemented processing at computer or other programmable devices, thereby be provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame in the instruction that computer or other programmable devices are carried out.

Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative concept of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.

Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims

1. an equipment of the core network is processed the method that local IP access LIPA connects, and it is characterized in that, comprising:

2. the method for claim 1 is characterized in that, and is described when determining to satisfy following condition simultaneously, determines that UE can realize switching in the situation that keeps LIPA to connect:

The target BS that switches is Home eNodeB;

UE satisfies the access control requirement that is linked into described target BS;

UE satisfies the access control requirement of the local network that is linked into the request access;

Described target BS is for to be connected to same local gateway with the source Home eNodeB.

3. the method for claim 1 is characterized in that, the method is applied to the LTE system, also comprises:

According to described Indication message, when determining that target BS is macro base station, whether the LIPA that judges UE connects is that last IP connects, if then initiate the detachment process of UE;

If not, then initiate the LIPA that LIPA Connection Release process discharges UE and connect, discharge successfully that backward source Home eNodeB returns the access success message, indicate described source Home eNodeB to begin to carry out the switching associative operation of UE.

4. the method for claim 1 is characterized in that, the method is applied to the UMTS system, also comprises:

According to described Indication message, when determining that target BS is macro base station, then initiate the LIPA that LIPA Connection Release process discharges UE and connect, discharge successfully that backward source Home eNodeB returns the access success message, indicate described source Home eNodeB to begin to carry out the switching associative operation of UE.

5. the method for claim 1 is characterized in that, also comprises:

According to described Indication message, when determining that target BS is Home eNodeB, but UE does not satisfy the access control be linked into described target BS when requiring, and returns the access failure message that indication UE can not access target BS to the source Home eNodeB.

6. the method for claim 1 is characterized in that, the method is applied to the LTE system, also comprises:

According to described Indication message, determine that target BS is Home eNodeB, UE satisfies the access control requirement that is linked into described target BS, the access control of the local network that is linked into the request access requires or/and described target BS is when being connected to different local gateway from the source Home eNodeB but UE does not satisfy, whether the LIPA connection of judging UE is that last IP connects, if then initiate the detachment process of UE;

7. the method for claim 1 is characterized in that, the method is applied to the UMTS system, also comprises:

According to described Indication message, determine that target BS is Home eNodeB, UE satisfies the access control requirement that is linked into described target BS, the access control of the local network that is linked into the request access requires or/and described target BS is when being connected to different local gateway from the source Home eNodeB but UE does not satisfy, initiate the LIPA connection that LIPA Connection Release process discharges UE, discharge successfully that backward source Home eNodeB returns the access success message, indicate described source Home eNodeB to begin to carry out the switching associative operation of UE.

8. such as the arbitrary described method of claim 2 ~ 7, it is characterized in that, the Target cell and/or the target BS information that comprise switching in the described Indication message, when described target BS was Home eNodeB, described Indication message also comprised closed subscriber group identity and the access module of target BS;

Described equipment of the core network determines according to Target cell and/or the target BS information of described switching whether the target BS that switches is Home eNodeB;

When determining that target BS is Home eNodeB, according to closed subscriber group identity and the access module of target BS, determine in conjunction with the subscription data of UE whether UE satisfies the access control requirement that the access control that is linked into described target BS required and be linked into the local network of request access.

9. the method for claim 1, it is characterized in that, described local gateway relevant information comprises the femtocell information that local gateway connects, the local gateway information that described local gateway relevant information configured in advance connects on described equipment of the core network or by the different home base station report acquisition.

10. a Home eNodeB is processed the method that local IP access LIPA connects, and it is characterized in that, comprising:

11. method as claimed in claim 10 is characterized in that, also comprises:

When receiving the access failure message that described equipment of the core network returns, carry out respective handling according to the access failure reason.

12. such as claim 10 or 11 described methods, it is characterized in that, the Target cell and/or the target BS information that comprise switching in the described Indication message, when described target BS was Home eNodeB, described Indication message also comprised closed subscriber group identity and the access module of target BS.

13. process the equipment of the core network that local IP access LIPA connects for one kind, it is characterized in that, comprising:

14. equipment of the core network as claimed in claim 13, it is characterized in that, when the successful indicating member of described access specifically was used for determining to satisfy following condition simultaneously, determine that UE can realize switching in the situation that keeps LIPA to connect: the target BS of switching was Home eNodeB; UE satisfies the access control requirement that is linked into described target BS; UE satisfies the access control requirement of the local network that is linked into the request access; Target BS is for to be connected to same local gateway with the source Home eNodeB.

15. equipment of the core network as claimed in claim 13 is characterized in that, described equipment of the core network is applied to the LTE system, also comprises:

The first attachment removal unit is used for according to described Indication message, and when determining that target BS is macro base station, whether the LIPA that judges UE connects is last IP connection, if then initiate the detachment process of UE;

The first Connection Release and indicating member, be used for the judgement according to the first attachment removal unit, the LIPA connection of determining UE is not that last IP connects, initiate the LIPA connection that LIPA Connection Release process discharges UE, discharge successfully that backward source Home eNodeB returns the access success message, indicate described source Home eNodeB to begin to carry out the switching associative operation of described UE.

16. equipment of the core network as claimed in claim 13 is characterized in that, described equipment of the core network is applied to the UMTS system, also comprises:

The second Connection Release and indicating member, be used for according to described Indication message, when determining that target BS is macro base station, then initiate the LIPA connection that LIPA Connection Release process discharges UE, discharge successfully that backward source Home eNodeB returns the access success message, indicate described source Home eNodeB to begin to carry out the switching associative operation of UE.

17. equipment of the core network as claimed in claim 13 is characterized in that, also comprises:

The access failure indicating member, be used for according to described Indication message, when determining that target BS is Home eNodeB, but UE does not satisfy the access control be linked into described target BS when requiring, and returns the access failure message that indication UE can not access target BS to the source Home eNodeB.

18. equipment of the core network as claimed in claim 13 is characterized in that, described equipment of the core network is applied to the LTE system, also comprises:

The second attachment removal unit, be used for according to Indication message, determine that target BS is Home eNodeB, UE satisfies the access control requirement that is linked into described target BS, the access control of the local network that is linked into the request access requires or/and target BS is when being connected to different local gateway from the source Home eNodeB but UE does not satisfy, whether the LIPA that judges UE connects is that last IP connects, if then initiate the detachment process of UE;

The 3rd Connection Release and indicating member, be used for the judgement according to the second attachment removal unit, the LIPA that determines UE connects when not being last IP connection, initiate the LIPA connection that LIPA Connection Release process discharges UE, discharge successfully that backward source Home eNodeB returns the access success message, indicate described source Home eNodeB to begin to carry out the switching associative operation of described UE.

19. equipment of the core network as claimed in claim 13 is characterized in that, described equipment of the core network is applied to the UMTS system, also comprises:

The 4th Connection Release and indicating member, according to described Indication message, determine that target BS is Home eNodeB, UE satisfies the access control requirement that is linked into described target BS, the access control of the local network that is linked into the request access requires or/and described target BS is when being connected to different local gateway from the source Home eNodeB but UE does not satisfy, initiate the LIPA connection that LIPA Connection Release process discharges UE, discharge successfully that backward source Home eNodeB returns the access success message, indicate described source Home eNodeB to begin to carry out the switching associative operation of UE.

20. such as the arbitrary described equipment of the core network of claim 14 ~ 19, it is characterized in that, the Target cell and/or the target BS information that comprise switching in the described Indication message, when described target BS was Home eNodeB, described Indication message also comprised closed subscriber group identity and the access module of target BS;

The successful indicating member of described access, the first attachment removal unit, the second Connection Release and indicating member, access failure indicating member, the second attachment removal unit and the 4th Connection Release and indicating member specifically are used for determining according to the Target cell of described switching and/or target BS information whether the target BS that switches is Home eNodeB;

The successful indicating member of described access, access failure indicating member, the second attachment removal unit and the 4th Connection Release and indicating member specifically are used for closed subscriber group identity and the access module according to target BS, determine in conjunction with the subscription data of UE whether UE satisfies the access control requirement that the access control that is linked into described target BS required and be linked into the local network of request access.

21. a Home eNodeB is characterized in that, comprising:

22. Home eNodeB as claimed in claim 21 is characterized in that, also comprises:

The failure handling unit when being used for receiving the access failure message that described equipment of the core network returns, carries out respective handling according to the access failure reason.

23. such as claim 21 or 22 described Home eNodeB, it is characterized in that, the Target cell and/or the target BS information that comprise switching in the Indication message that the Indication message transmitting element sends, when described target BS was Home eNodeB, described Indication message also comprised closed subscriber group identity and the access module of target BS.