CN102469539A

CN102469539A - Method and correlated device for establishing interface between base stations and for realizing subdistrict switching

Info

Publication number: CN102469539A
Application number: CN2010105479480A
Authority: CN
Inventors: 张亮亮; 周铮; 时洁
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2010-11-17
Filing date: 2010-11-17
Publication date: 2012-05-23
Also published as: WO2011137858A1

Abstract

The embodiment of the invention discloses a method and a correlated device for establishing an interface between every two base stations and for realizing subdistrict switching. Whether a first home evolution node (HeNB) and a second HeNB are arranged under the same home evolution node gateway (HeNB GW); and if the first HeNB and the second HeNB are arranged under the same HeNB GW, the first HeNB establishes an interface X2 between the first HeNB and the second HeNB, or the first HeNB switches UE attributive to the first HeNB to the second HeNB. According to the embodiment, the network resource waste problem occurred in the switching process can be reduced, and the switching can be ensured to normally realize.

Description

Between the base station, set up interface, realize method and the relevant apparatus that switch the sub-district

Technical field

The present invention relates to communication technical field, particularly relate to method and the relevant apparatus between the base station, setting up interface, realize the sub-district switching.

Background technology

In GSM; In order to improve the switching efficiency of sub-district, at two HeNB of network topology structure (Home Evolution Node B, family's evolved base station); Perhaps between HeNB and eNB (Evolution Node B, evolved base station), set up direct X2 interface.In cell switch process, this is used for the relevant signaling in expression terminal on the S1 interface to sign MME UE S1 AP ID and eNB UE S1 AP ID.If HeNB is connected on the MME through HeNB GW, so, from the MME angle, HeNB GW just is equivalent to a base station, and from the HeNB angle, HeNB GW just is equivalent to a MME.Therefore, on the S1 interface of HeNB GW-MME side, be MME UE S1 AP ID of UE distribution of HeNB subordinate by MME, like MME UE S1 AP ID1.A HeNB GW may connect a plurality of MME, and different MME may distribute identical MME UE S1 AP ID for the different terminals among the same HeNB under the affiliated HeNBGW.Because this MME UES1 AP ID is arranged in the connection of different MME-HeNB GW, therefore collision problem can not appear indicating in the interface between MME-HeNB GW.And the ID conflict will appear on HeNB GW-HeNB interface, causes HeNB can't discern a plurality of identical MME UE S1 AP ID and indicates which terminal.In order to address the above problem; Therefore on the S1 interface of HeNB GW-HeNB side; HeNB GW can be MME UE S1 AP ID of UE reallocation of HeNB subordinate; Like MME UE S1 APID-1a, that is: when the S1 interface of HeNB GW through HeNB GW-MME side receives the S1 message that MME sends, can convert the MME UE S1 AP ID1 that distributes by MME that comprises in this message to MME UE S1 AP ID-1a by own distribution.

After having introduced direct X2 interface, as shown in Figure 1 based on a kind of handoff scenario of direct X2 interface, it is a kind of handoff scenario sketch map in the prior art.In this scene, switch between two HeNB that set up direct X2 interface and carry out, and two HeNB belong to different HeNB GW respectively.

The inventor finds under study for action, and in above-mentioned scene, when when HeNB1 switches to HeNB2, for HeNB1, it knows the MME UE S1 AP ID that HeNB GW1 distributes, and and do not know the MME UE S1 AP ID that MME distributes.That is to say that MME is that the ID that distributes of UE can be directly by the ID of gateway as UE, and be based on the ID that ID that certain relation distributes according to MME generates gateway self.Be different terminals when distributing identical ID when not having the MME that interknits to each other like this, gateway can be distinguished through the ID that generates self.Through direct X2 interface the MME UE S1 AP ID that HeNB GW1 distributes is sent to HeNB2 at HeNB1; HeNB2 sends to HeNB GW2 with this MME UES1 AP ID again; After HeNB GW2 continuation sends to MME with this MME UE S1 AP ID, because this MME UE S1 AP ID is by HeNB GW1 distribution, therefore; MME can't discern this MME UE S1 AP ID that receives, and can't normally realize the most at last switching.Otherwise, when when HeNB2 switches to HeNB1, same problem can appear.

And when network system can't realize normally switching, the X2 interface of setting up in the above-mentioned scene also just can't be fully utilized, and the X2 interface of foundation certainly will have been wasted Internet resources for whole network system.

Summary of the invention

In order to solve the problems of the technologies described above, the embodiment of the invention provides a kind of and between the base station, has set up interface, realized method and the relevant apparatus that switch the sub-district, to reduce the network resources waste that occurs in the X2 handoff procedure.

The embodiment of the invention discloses following technical scheme:

A kind of method of between the base station, setting up interface comprises: judge whether a HeNB and the 2nd HeNB are positioned under the same HeNB GW; If a HeNB and the 2nd HeNB are positioned under the same HeNBGW, a HeNB sets up the X2 interface between a HeNB and the 2nd HeNB.

A kind of device of between the base station, setting up interface comprises: judging unit is used to judge whether a HeNB and the 2nd HeNB are positioned under the same HeNB GW; Set up the unit,, set up the X2 interface between a HeNB and the 2nd HeNB if be used for a HeNB and the 2nd HeNB is positioned under the same HeNB GW.

Can find out by the foregoing description; Before between two HeNB, setting up X2 interface; Earlier judge whether two HeNB are positioned under the same gateway, determine whether to set up X2 interface again, can set up X2 interface when two HeNB are positioned at same gateway following time; And utilize this X2 interface to carry out and the relevant operation of flow process such as switching, thereby avoided in the time can't realizing switching, setting up X2 interface and waste that Internet resources are caused.

A kind of method that realizes that the sub-district is switched comprises: judge whether a HeNB and the 2nd HeNB are positioned under the same HeNB GW; If a HeNB and the 2nd HeNB are positioned under the same HeNB GW, a HeNB utilizes X2 interface that the one HeNB subordinate UE is switched to the 2nd HeNB.

A kind of realization sub-district device for switching comprises: judging unit is used to judge whether a HeNB and the 2nd HeNB are positioned under the same HeNB GW; Switch unit if be used for a HeNB and the 2nd HeNB is positioned under the same HeNB GW, utilizes X2 interface that the one HeNB subordinate UE is switched to the 2nd HeNB.

Can find out by the foregoing description; Before switch the sub-district; When confirming that two HeNB are positioned at same gateway following time and can carry out switching, avoid two HeNB to be positioned at the situation that UE sign that different gateway MME of following time receive can not be identified as far as possible, can reduce the possibility of handoff failure.

A kind of method that realizes that the sub-district is switched; Comprise: the HeNB GW under the HeNB receives the MME UE SIAP ID that a MME distributes to UE, judges that a said MME UE SIAPID is whether identical with the MMEUE SIAP ID that other any MME except that a said MME distributes to said UE; If it is inequality that a said MME UE SIAP ID and other any MME except that a said MME distribute to the MME UE SIAP ID of said UE, the HeNB GW under the HeNB sends to said the 2nd HeNB with a said MME UE SIAP ID through a said HeNB; Said the 2nd HeNB offers a said MME with a said MME UE SIAP ID, with the said UE that switches to said MME indication.

A kind of realization sub-district device for switching comprises: the sign receiving element, be used to receive a MME UE SIAP ID who sends by the 2nd HeNB, and a said MME UE SIAP ID is that the HeNB GW under the HeNB is that said UE distributes; The sign converting unit, being used for according to preset mapping relations the one MME UE SIAP ID being converted into can be by the 2nd MME UE SIAP ID of MME identification; First switches indicating member, is used for the 2nd MME UE SIAP ID is sent to MME, with the said UE that switches to the MME indication.

Can find out by the foregoing description; If two base stations are not under same gateway; And set up interface between two base stations, for the normal completion that guarantees to switch, in the gateway of two base stations under respectively, preserving MME is said UE MME UE SIAP ID that distributes and the mapping relations of switching between the MME UE SIAP ID that the opposite end is the UE distribution; With in two gateways of box lunch any one receive switch the opposite end be UE distribute MME UE SIAP ID the time; Can obtain MME according to mapping relations is the MME UE SIAP ID that said UE distributes, i.e. the MME MME UE SIAP ID that can discern, thus guaranteed the normal completion of switching.

A kind of realization sub-district device for switching; Comprise: the sign judging unit; Be used to receive the MME UE SIAP ID that a MME distributes to UE, judge that a said MME UE SIAP ID is whether identical with the MME UE SIAPID that other any MME except that a said MME distributes to said UE; The sign transmitting element; If it is inequality with the MME UE SIAP ID that other any MME except that a said MME distributes to said UE to be used for a said MME UE SIAP ID, a said MME UE SIAP ID is sent to the said second switching indicating member through a said HeNB; Second switches indicating member, is used for a said MME UE SIAP ID is offered a said MME, with the said UE that switches to said MME indication.

Can find out by the foregoing description; Can also guarantee that different MME is different for the MME UE SIAP ID of subordinate's same UE distribution; When at least two MME of the gateway discovery under the base station are that subordinate's UE is when distributing identical MME UE SIAP ID; Then ask MME to redistribute MME UE SIAPID,, thereby guaranteed the normal completion of switching so that the MME UE SIAP ID that the gateway under the base station directly can be discerned MME sends to the base-station gateway that switches the opposite end.

Description of drawings

In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is a kind of handoff scenario sketch map in the prior art;

The flow chart of an embodiment of Fig. 2 sets up interface for the application is a kind of between the base station method;

Fig. 3 realizes the flow chart of an embodiment of the method that switch the sub-district for the application is a kind of;

Fig. 4 is an a kind of signaling process figure who between the base station, sets up interface of the application;

Fig. 5 is a kind of another signaling process figure that between the base station, sets up interface of the application;

Fig. 6 is a kind of another signaling process figure that between the base station, sets up interface of the application;

Fig. 7 is a kind of another signaling process figure that between the base station, sets up interface of the application;

Fig. 8 realizes the flow chart of an embodiment of the method that switch the sub-district for the application is a kind of;

Fig. 9 realizes the flow chart of another embodiment of the method that switch the sub-district for the application is a kind of;

The structure chart of an embodiment of Figure 10 sets up interface for the application is a kind of between the base station device;

Figure 11 is a structural representation of judging unit among the application;

Figure 12 is for setting up a structural representation of unit among the application;

Figure 13 is a kind of structure chart of realizing an embodiment of sub-district device for switching of the application;

Another structure chart of having implemented that Figure 14 realizes the sub-district device for switching for the application is a kind of;

Figure 15 is a kind of structure chart of realizing another embodiment of sub-district device for switching of the application;

Figure 16 is a kind of structure chart of realizing another embodiment of sub-district device for switching of the application.

Embodiment

In order to solve the problems of the technologies described above; The application provides the method for between the base station, setting up interface, between two HeNB, set up X2 interface before, earlier judge whether two HeNB are positioned under the same gateway; Whether decision sets up X2 interface again; Can set up X2 interface when two HeNB are positioned at same gateway following time, and utilize this X2 interface to carry out and the relevant operation of flow process such as switching, can avoid the wasting of resources.

In addition, can the method for between the base station, setting up interface be applied in the switching of sub-district, that is, before switch the sub-district, set up X2 interface, realize the sub-district switching according to the X2 interface of setting up again according to the above-mentioned method of between the base station, setting up interface.

Certainly; If set up interface between the base station; Also can determine whether switching through judging whether two HeNB are positioned under the same gateway; Can carry out switching when two HeNB are positioned at same gateway following time, avoid two HeNB to be positioned at the situation that UE sign that different gateway MME of following time receive can not be identified as far as possible, can reduce the possibility of handoff failure.

For make above-mentioned purpose of the present invention, feature and advantage can be more obviously understandable, below in conjunction with accompanying drawing the embodiment of the invention is described in detail.

Embodiment one

See also Fig. 2, the flow chart of an embodiment of it sets up interface for the application is a kind of between the base station method.May further comprise the steps:

Step 201: judge whether a HeNB and the 2nd HeNB are positioned under the same HeNB GW;

Wherein, saidly judge whether a HeNB and the 2nd HeNB are positioned under the same HeNB GW and comprise: the TAI (Tracking Area indicator tracing area signs) that a HeNB obtains the HeNB GW under the HeNB tabulates; The one HeNB judges that the TAI of the 2nd HeNB is whether in the TAI tabulation that obtains; If the TAI of the 2nd HeNB in the TAI of said acquisition tabulation, confirms that then a HeNB and the 2nd HeNB are positioned under the same HeNB GW.Particularly, under the HeNB scene, a HeNB GW has a plurality of TAIs, and each TAI distributes to its subordinate's a HeNB; Different HeNB GW has different TAI list, can not occur overlapping.Therefore a HeNB can tabulate through TAI and judge whether the 2nd HeNB and oneself belong to a HeNB GW.

Wherein, the said HeNB TAI tabulation that obtains the HeNB GW under the 2nd HeNB comprises: a HeNB tabulates from the TAI that the HeNB GW under OAM, O&M, EMS, NMS or the HeNB obtains the HeNB GW under the HeNB.

In the present embodiment; Request message is obtained in one of the one HeNB transmission of the HeNB GW under OAM, O&M, EMS, NMS or a HeNB earlier; The TAI tabulation of HeNB GW under acquisition request the one HeNB; Reply request message by the HeNB GW under OAM, O&M, EMS, NMS or the HeNB then, the TAI tabulation of the HeNB GW under the HeNB is sent to a HeNB.In addition, OAM, O&M, EMS, NMS or a HeNB also can be initiatively send to a HeNB with the TAI tabulation of the HeNB GW under the HeNB.

In addition, judging whether a HeNB and the 2nd HeNB are positioned under the same HeNB GW is specially: HeNB GW judges whether a HeNB and the 2nd HeNB are positioned under the same HeNB GW under the HeNB; If a HeNB and the 2nd HeNB are positioned under the same HeNB GW, said method also comprises: HeNB GW sends to a HeNB and indicates a HeNB and the 2nd HeNB to be positioned at the Indication message under the same HeNB GW under the HeNB.

Based on this, saidly judge whether a HeNB and the 2nd HeNB are arranged under the same HeNB GW and comprise: whether the TAI that the HeNB GW under the HeNB judges the 2nd HeNB is in self TAI tabulation; If in the TAI of the HeNB GW of the TAI of the 2nd HeNB under the said HeNB tabulation, confirm that then a HeNB and the 2nd HeNB are positioned under the same HeNB GW.

Need to prove that " HeNB " is the HeNB that any needs in the network are set up X2 interface.And in other embodiment of the present invention, " first ", " second " itself also are not used in the qualification technical scheme.

Step 202: if a HeNB and the 2nd HeNB are positioned under the same HeNB GW, a HeNB sets up the X2 interface between a HeNB and the 2nd HeNB.

Wherein, the X2 interface set up between a HeNB and the 2nd HeNB of a said HeNB comprises: the arbitrary TNL address or the IP address that obtain two HeNB of HeNB GW from MME and said the 2nd HeNB under the HeNB; The one HeNB receives said TNL address or the IP address that the HeNBGW under the HeNB sends; The one HeNB sets up the X2 interface between a HeNB and the 2nd HeNB according to said TNL address or IP address.

Preferably, said method also comprises: a HeNB realizes the sub-district switching according to the X2 interface of setting up, and the switching of said sub-district is used for a HeNB subordinate UE is switched to the 2nd HeNB.

Different with prior art; In the present embodiment; Before a HeNB and the 2nd HeNB set up X2 interface; Earlier judge whether a HeNB and the 2nd HeNB are positioned under the same HeNB GW, if a HeNB and the 2nd HeNB are positioned under the same HeNB GW, then a HeNB sets up the X2 interface of a HeNB and the 2nd HeNB.

Otherwise if a HeNB and the 2nd HeNB are not positioned under the same HeNB GW, a HeNB can further judge whether to set up an X2 interface with the 2nd HeNB according to other network conditions.

Under the situation of not considering other network condition, preferably, if the TAI of the 2nd HeNB is not in the TAI of said acquisition tabulates, a HeNB does not set up the X2 interface between a HeNB and the 2nd HeNB.There are not this moment X2 interface, a HeNB can select for use the S1 interface to carry out handover operation.

Embodiment two

Present embodiment also provides a kind of method that realizes that the sub-district is switched.That is, when judging that a HeNB and the 2nd HeNB are positioned under the same HeNB GW, a HeNB switches to the 2nd HeNB with a HeNB subordinate UE.See also Fig. 3, it is a kind of flow chart of realizing an embodiment of the method that switch the sub-district among the application, may further comprise the steps:

Step 301: judge whether a HeNB and the 2nd HeNB are positioned under the same HeNB GW;

Step 302: if a HeNB and the 2nd HeNB are positioned under the same HeNB GW, a HeNB utilizes X2 interface that the one HeNB subordinate UE is switched to the 2nd HeNB.

The execution of above-mentioned steps 301 can be referring to the step 201 among the embodiment one, and present embodiment repeats no more to this.

In the present embodiment; If the X2 interface of having set up between a HeNB and the 2nd HeNB; Determine whether switching through judging whether two HeNB are positioned under the same gateway, when a HeNB and the 2nd HeNB are positioned under the same gateway, carry out and switch.If do not set up X2 interface between a HeNB and the 2nd HeNB; Determine whether setting up X2 interface under the same gateway through judging whether two HeNB are positioned at;, a HeNB and the 2nd HeNB set up X2 interface when being positioned under the same gateway, that is, if a HeNB and the 2nd HeNB are positioned under the same HeNBGW in step 302; The one HeNB sets up the X2 interface between a HeNB and the 2nd HeNB, and then a HeNB subordinate UE is switched to the 2nd HeNB.

Need to prove that when a HeNB and the 2nd HeNB were not positioned under the same HeNB GW, a HeNB can further judge whether a HeNB subordinate UE is switched to the 2nd HeNB according to other network conditions.

Under the situation of not considering other network condition, preferred, if a HeNB and the 2nd HeNB are not positioned under the same HeNB GW, a HeNB does not switch to the 2nd HeNB with a HeNB subordinate UE.

Can find out by the foregoing description, can the method for between the base station, setting up interface be applied in the switching of sub-district, that is, before switch the sub-district, set up X2 interface, realize the sub-district switching according to the X2 interface of setting up again according to the above-mentioned method of between the base station, setting up interface.Certainly; If set up interface between the base station; Also can determine whether switching through judging whether two HeNB are positioned under the same gateway; Can carry out switching when two HeNB are positioned at same gateway following time, avoid two HeNB to be positioned at the situation that UE sign that different gateway MME of following time receive can not be identified as far as possible, can reduce the possibility of handoff failure.

Embodiment three

Obtain the TAI tabulation with a HeNB from the HeNB GW under the HeNB below, judge whether the TAI of the 2nd HeNB is example in the TAI tabulation that obtains, the method for between the base station, setting up interface is described.See also Fig. 4, it is an a kind of signaling process figure who between the base station, sets up interface of the application, may further comprise the steps:

Step 401:HeNB A obtains the TAI tabulation of HeNB GW1 to the HeNB GW1 request under own;

For example, HeNB A can send S1 message or X2 message to the HeNB GW1 under own particularly, and request obtains the TAI tabulation of HeNB GW1.

Need to prove that step 401 is an optional step, also direct execution in step 402 promptly, directly sends to HeNB A by HeNB GW1 with the TAI list information of HeNB GW1.

Step 402:HeNB GW1 responds the request of HeNB A, and the TAI list information of HeNB GW1 is sent to HeNB A;

For example, HeNB A can be when HeNB GW1 sends the TAI tabulation of S1 or X2 message request acquisition HeNB GW1 particularly, and S1 or X2 message that HeNB GW1 will carry the TAI tabulation of HeNB GW1 send to HeNB A.

Step 403:HeNB A judges that the TAI of HeNB B is whether in obtaining the TAI tabulation;

Step 404: if the TAI of HeNB B is in the TAI of said acquisition tabulates, HeNB A sets up the X2 interface between HeNB A and HeNB B.

If the TAI of the 2nd HeNB representes that so the 2nd HeNB and a HeNB belong among the HeNB GW in the TAI of said acquisition tabulation.Further, a HeNB sets up the X2 interface between a HeNB and the 2nd HeNB.

Need to prove that when the TAI of HeNB B was in the TAI tabulation of the HeNB GW1 under HeNB A, HeNB A can further judge whether to set up an X2 interface with HeNB B according to other network conditions.

Under the situation of not considering other network condition, preferred, if the TAI of HeNB B is not in the TAI of said acquisition tabulates, HeNB A does not set up the X2 interface between HeNB A and HeNB B.

Can find out by the foregoing description; Before between two HeNB, setting up X2 interface, the TAI of a HeNB through judging the 2nd HeNB obtains two HeNB and whether is positioned at the result under the same gateway during the TAI of the HeNB GW under a HeNB tabulates; Whether decision sets up X2 interface according to judged result then; Can set up X2 interface when two HeNB are positioned at same gateway following time, and utilize this X2 interface to carry out and the relevant operation of flow process such as switching, can avoid the wasting of resources.

Embodiment four

Judge with the HeNB GW under the HeNB whether HeNB A and HeNB B are example, and the method for setting up interface between the base station is described in same HeNB GW below.Particularly the HeNB GW under the HeNB judge can be through judging the 2nd HeNB TAI whether in the TAI of self tabulates; And TNL address or IP address that the HeNB GW under a HeNB or the HeNB obtains the 2nd HeNB are example, and the method for between the base station, setting up interface is described.See also Fig. 5, it is a kind of another signaling process figure that between the base station, sets up interface of the application, may further comprise the steps:

The eNB configuration transfer message that the HeNB GW1 of step 501:HeNB A under HeNB A sends the TAI that carries HeNB B, request obtains TNL address or the IP address of HeNB B;

Particularly, the TAI and the eNBID information that have comprised HeNB B in the eNB configuration transfer message.

Step 502:HeNB GW1 gives MME with the eNB configuration transfer forwards that receives;

Step 503:MME is according to the content of the eNB configuration transfer message of receiving, the HeNB GW under HeNB B sends MME configuration transfer message, and request obtains TNL address or the IP address of HeNB B;

Especially, the HeNB GW under the HeNB B is HeNB GW1 in the present embodiment, and like Fig. 5, the HeNB GW under the HeNB B can be other HeNB GW certainly, and the present invention does not limit.

HeNB GW1 under the step 504:HeNB B gives HeNB B with the MME configuration transfer forwards of receiving;

Step 505:HeNB B will carry the TNL address of self or the eNBconfiguration transfer message of IP address sends to the affiliated HeNB GW1 of HeNB B;

The eNB configuration transfer message of TNL address of carrying HeNB B that step 506:HeNB GW1 will receive or IP address is issued MME;

Step 507:MME is according to the content of the eNB configuration transfer message received, and the MME configuration transfer message of TNL address of carrying HeNB B or IP address is sent to the HeNB GW1 under the HeNB A;

Step 508:HeNB GW1 will carry the TNL address of HeNB B or the eNBconfiguration transfer message of IP address sends to HeNB A; Simultaneously; In MME configuration transfer message, comprise an indicating bit, whether the TAI that is used for indicating HeNB B is in self TAI tabulation; Perhaps be used for indicating HeNB A and HeNB B whether at same HeNB GW.

Step 509:HeNB A is according to the indication in the message, and whether decision sets up X2 interface with HeNB B.

Wherein, when message indicated the TAI of the HeNB GW of TAI under HeNB A self of HeNB B to tabulate, HeNB A set up the X2 interface between HeNB A and HeNB B.

As the TAI of message indication HeNB B during the TAI tabulation of the HeNB GW under HeNB A self, HeNB A can further judge whether to set up an X2 interface with HeNB B according to other network conditions.

Need to prove that above-mentioned steps 502-507 is that the HeNB GW1 under the HeNB A obtains the process of TNL address or the IP address of HeNB B.Receive the eNB configuration transfer message of the TAI that carries HeNB B that HeNB A sends as the HeNB GW1 under the HeNB A after; Present embodiment can also be earlier judges by HeNB GW1 whether the TAI of HeNB B judges perhaps in the TAI tabulation of self that HeNB A and HeNB B are whether in same HeNB GW; When the TAI of HeNB B is arranged in the TAI tabulation of self or judges that HeNB A and HeNB B are behind same HeNB GW; Execution in step 502-507 successively again; With TNL address or the IP address that obtains HeNB B, and send to HeNB A, so that HeNB A sets up X2 interface according to TNL address or the IP address of HeNB B; Otherwise; When the TAI of HeNB B is not arranged in TAI when tabulation of self or judges HeNBA and HeNB B not at same HeNB GW; Execution in step 502-507 not then; Directly send eNB configuration transfer message, and the TAI of indication HeNB B does not perhaps indicate HeNB A and HeNB B not in same HeNB GW in message in the TAI tabulation of self to HeNB A.See also Fig. 6, it is a kind of another signaling process figure that between the base station, sets up interface of the application.As shown in Figure 6; Receive the eNB configuration transfer message of the TAI that carries HeNB B that HeNB A sends as the HeNB GW1 under the HeNB A after; Whether the TAI that judges earlier HeNB B judges perhaps in the TAI tabulation of self that HeNB A and HeNB B are whether in same HeNB GW;, the TAI of HeNB B perhaps do not judge that HeNB A and HeNB B be not at same HeNB GW when not being arranged in the TAI tabulation of self; Directly send eNB configuration transfer message to HeNB A, and in message the TAI of indication HeNB B not in the TAI tabulation of self.

Can find out by the foregoing description; Before between two HeNB, setting up X2 interface; The TAI of HeNB under the one HeNB through judging the 2nd HeNB obtains two HeNB and whether is positioned at the result under the same gateway during self TAI tabulates, and then judged result notified to a HeNB; So that a HeNB determines whether to set up X2 interface according to judged result; Can set up X2 interface when two HeNB are positioned at same gateway following time, and utilize this X2 interface to carry out and the relevant operation of flow process such as switching, can avoid the wasting of resources.

Certainly HeNB GW also can judge that HeNB GW under the HeNB judges that a HeNB and the 2nd HeNB are whether on same HeNB GW through other modes; For example; ENB ID through judging the 2nd HeNB or ECGI confirm that the 2nd HeNB is whether under the HeNB GW under the HeNB; In each embodiment of the present invention, do not limit HeNB GW and judge the whether method under the HeNB GW under the HeNB of the 2nd HeNB.Particularly; Can carry out referring to the determination methods of the foregoing description; Can to a HeNB relevant information of this HeNB GW subordinate HeNB be provided by HeNB GW,, judge that by a HeNB eNB ID or the ECGI of the 2nd HeNB be whether corresponding with the information that HeNB GW provides like eNB ID or ECGI tabulation etc.; If can in the tabulation that HeNB GW provides, find the 2nd HeNB corresponding identification information; Can think that then two HeNB are positioned under the same gateway, for other scheme that possibly occur, present embodiment does not limit yet.

Embodiment five

Whether the TAI that judges the 2nd HeNB with the HeNB GW under the HeNB below is in the TAI tabulation of self; And the HeNB GW under the HeNB is an example from TNL address or the IP address that direct the 2nd HeNB obtains the 2nd HeNB, and the method for between the base station, setting up interface is described.See also Fig. 7, it is a kind of another signaling process figure that between the base station, sets up interface of the application, may further comprise the steps:

The eNB configuration transfer message that the HeNB GW1 of step 701:HeNB A under HeNB A sends the TAI that carries HeNB B, request obtains TNL address or the IP address of HeNB B;

Step 702:HeNB GW1 sends MME configuration transfer message according to the content of the eNB configuration transfer message of receiving to HeNB B, and request obtains TNL address or the IP address of HeNB B;

Step 703:HeNB B will carry the TNL address of self or the eNBconfiguration transfer message of IP address sends to HeNB GW1;

Step 704:HeNB GW1 will carry the TNL address of HeNB B or the MMEconfiguration transfer message of IP address sends to HeNB A; Simultaneously; In MME configuration transfer message, comprise an indicating bit, the TAI that is used for indicating HeNB B whether at self TAI tabulation or HeNB A and HeNB B whether in same HeNB GW;

Step 705:HeNB A is according to the indication in the message, and whether decision sets up X2 interface with HeNB B.

Wherein, when the TAI of the HeNB GW of TAI under HeNB A self of indication HeNB B in the message tabulates, perhaps indicate HeNB A and HeNB B in same HeNB GW, HeNB A sets up the X2 interface between HeNB A and HeNB B.

As the TAI of indication HeNB B in the message during the TAI tabulation of the HeNB GW under HeNB A self or indicate HeNB A and HeNB B not in same HeNB GW, HeNB A can further judge whether to set up an X2 interface with HeNB B according to other network conditions.

Need to prove that above-mentioned steps 702-703 is that the HeNB GW1 under the HeNB A obtains the process of TNL address or the IP address of HeNB B.Receive the eNB configuration transfer message of the TAI that carries HeNB B that HeNB A sends as the HeNB GW1 under the HeNB A after; Present embodiment can also be earlier judges by HeNB GW1 whether the TAI of HeNB B judges perhaps in the TAI tabulation of self that HeNB A and HeNB B are whether in same HeNB GW; The TAI tabulation back that is arranged in self as the TAI that judges HeNB B perhaps judges that HeNB A and HeNB B are behind same HeNBGW; Execution in step 702-703 successively again; With TNL address or the IP address that obtains HeNB B, and send to HeNB A, so that HeNB A sets up X2 interface according to TNL address or the IP address of HeNB B; Otherwise; When the TAI that judges HeNB B is not arranged in the TAI tabulation of self or judge that HeNB A and HeNB B be not when same HeNB GW; Execution in step 702-703 not then; Directly send eNB configuration transfer message to HeNB A, and the TAI of indication HeNB B is not in the TAI tabulation of self in message, correlated process can be referring to Fig. 6.

For ease of understanding, make brief description below for example, MME can distribute ID for UE1 behind UE (representing with UE1) access base station; Represent that with MME UE S1 AP ID1 this expression mode is not used in qualification, but different MME there is not contact each other; Therefore the ID that distributes for self UE (representing with UE2) of other MME maybe be identical with the ID of UE; For the ease of distinguishing, former gateway (representing with gateway 1, for example HeNB GW1) needs to generate the UE ID of self; For example distribute identical MME UE S1 AP ID respectively for each self terminal as two MME, then gateway 1 can generate the ID that MME UE S1 AP ID1-a and MME UE S1 AP ID1-b distinguish 2 different UEs respectively.In a word, in the prior art, gateway can be made certain processing to the ID that MME distributes and generate the new ID of oneself.

Suppose that gateway 1 is issued to the former base station of gateway 1 subordinate (representing with base station 1, for example HeNB1) respectively with UE1 and corresponding MME UE S1 AP ID1-a and the MME UE S1 APID1-b of UE2, to accomplish distribution to the different UEs sign.When UE1 need be from the base station 1 switches to and maybe will switch to target BS when (representing with base station 2); Any website (gateway or base station etc.) can judge whether base station 1 and base station 2 have same gateway; If no, then handoff procedure or switching X2 interface are before set up and can be performed.In case be forwarded to base station 2 again because the corresponding MME UE S1 AP ID1-a of UE1 is sent to base station 1 by gateway 1; And be forwarded to gateways (suppose that this moment, base station 2 affiliated gateways were different from gateway 1, represent) under the base station 2, and further be forwarded to MME with gateway 2 by base station 2; Because MME UE S1 APID1-a has not been the ID that MME initially issues; This moment, MME UE S1 AP ID1-a can not be discerned by MME, and switching can not be carried out, and sets up the X2 interface that is used to switch and also can waste resource.Gateway also is a gateway 1 under any website is judged base station 2, and promptly there is same gateway 2 base stations, then can proceed to switch or set up interface.This is because gateway 1 is self to generate said MME UE S1 AP ID1-a; So gateway 1 has the ability MME UE S1 AP ID1-a is changed back the discernible MMEUE S1 of MME AP ID1 again; Therefore when switching expansion; Can MME UE S1 AP ID1 be sent to MME by this gateway 1, make MME carry out the operations such as (path switch procedure) of follow-up path change in view of the above.

Can find out by above-mentioned enforcement; Before between two HeNB, setting up X2 interface; Whether the TAI of the HeNB GW under the one HeNB through judging the 2nd HeNB in the TAI of self tabulates, obtains two HeNB and whether is positioned at the result under the same gateway, then judged result is notified to a HeNB; So that a HeNB determines whether to set up X2 interface according to judged result; Can set up X2 interface when two HeNB are positioned at same gateway following time, and utilize this X2 interface to carry out and the relevant operation of flow process such as switching, can avoid the wasting of resources.

Embodiment six

The application embodiment also provides a kind of method that realizes that the sub-district is switched.To the handoff scenario shown in Fig. 1; Through direct X2 interface the MME UE S1 AP ID that HeNB GW1 distributes is sent to HeNB2 at HeNB1; HeNB2 sends to HeNB GW2 with this MME UE S1 AP ID again, after the HeNBGW2 continuation sends to MME with this MME UE S1 AP ID, because this MME UE S1 AP ID is distributed by HeNB GW1; Therefore; MME can't discern this MME UE S1 AP ID that receives, and normally carries out in order to guarantee to switch, and can MME UE S1 AP ID is converted into and can or be converted into the sign of former MME for this terminal distribution by the sign of MME identification by HeNB GW2.Present embodiment provides a kind of method that can guarantee normally to realize the sub-district switching, sees also Fig. 8, and it is a kind of flow chart of realizing an embodiment of the method that switch the sub-district among the application, may further comprise the steps:

Step 801: HeNB GW receives a MMEUE SIAP ID who is sent by the 2nd HeNB under the 2nd HeNB, and a said MME UE SIAP ID is that the HeNB GW under the HeNB is that said UE distributes;

For example; As shown in Figure 1; On the S1 interface of HeNB GW1-MME side; By MME is MME UE S1 AP ID1 of UE distribution of HeNB subordinate, and on the S1 interface of HeNB GW1-HeNB1 side, can be MME UES1 AP ID1-a of UE reallocation of HeNB1 subordinate by HeNB GW1 then; That is: when the S1 interface of HeNB GW1 through HeNB GW1-MME side receives the S1 message that MME sends, can convert the MME UE S1 APID1 that distributes by MME that comprises in this message to MME UE S1 AP ID1-a by own distribution.

HeNB1 sends to the HeNB2 that switches the opposite end through the S1 message that the X2 interface of setting up will comprise MME UE S1 AP ID-a, the HeNB GW2 under HeNB2 is transmitted to again.

Step 802: it is the 2nd MME UE SIAP ID that said UE distributes that the HeNB GW under the 2nd HeNB converts a MMEUE SIAP ID into MME according to preset mapping relations;

Wherein, In that to be preset with MME on the HeNB GW under the 2nd HeNB be the MME UE SIAP ID1 that distributes of said UE and the HeNB GW under the HeNB is the mapping relations between the MME UESIAP ID1-a of UE distribution; HeNB GW under the 2nd HeNB converts the MME UE SIAP ID1-a that receives into the discernible MME UE of MME SIAP ID1 according to mapping relations, like this MME UE SIAP ID1 can by discern.

For example, as shown in Figure 1, after the HeNB GW2 under the HeNB 2 receives MME UE S1 APID1-a, convert MME UE S1 AP ID1-a into MME UES1 AP ID1 according to the mapping relations shown in the following table.Can see that in following table 1, gateway can generate a plurality of ID based on the same MMEUE S1 AP ID 1 that different MME issue, like MME UE S1 AP ID 1-a, MME UE S1 AP ID1-b etc., to show differentiation.

Table 1

Step 803: the HeNB GW under the 2nd HeNB is sent to MME with the 2nd MME UE SIAP ID, with the said UE that switches to the MME indication.

Need to prove; When UE when the 2nd HeNB switches to a HeNB; In that to be preset with MME on the HeNB GW under the HeNB equally be the 2nd MME UE SIAPID that distributes of said UE and the described HeNB GW of the 2nd HeNB is the mapping relations between the 3rd MME UE SIAP ID that distributes of UE, the 3rd MME UE SIAP ID that the HeNB GW under the HeNB will receive according to mapping relations converts the 2nd MME UE SIAP ID that MME is said UE distribution into.

2 gateways in the present embodiment can be preserved same mapping relations; Receive the MME UE SIAP ID1 that MME sends at gateway 1; Generate MME UE SIAPID1-a according to said mapping relations; And be sent to subordinate base station 1, and base station 1 is forwarded to gateway 2 with MME UE SIAP ID1-a through base station 2, and the MME UE SIAP ID1-a that gateway 2 can directly can not be discerned MME sends to MME; With gateway 1 same mapping relations MME UE SIAP ID1-a is transformed back MMEUE SIAP ID1 and give MME again and be based on, make the base station can discern this sign.Method shown in the present embodiment can and UE between two gateways, switch and carry out simultaneously, also can suitably constantly carry out at other.Usually; MME can be that UE distributes MME UE SIAP ID1 when UE initially inserts source base station 1; When UE carry out to switch, MME need learn that which UE need switch, so that carry out follow-up path change and the UE transmission path that will switch switches to the target BS place.Therefore; Gateway 2 under target BS or the target BS to MME send that message (for example path switch request message) comprised that this MME distributes MME UE SIAP ID1 be exactly UE to this switching of MME indication; MME can know that which UE carries out switching like this, and MME can change UE transfer of data target BS (base station 2) in view of the above.

Embodiment seven

The application embodiment also provides a kind of method that realizes that the sub-district is switched.See also Fig. 9, it realizes another embodiment of the method that switch the sub-district for the application is a kind of flow chart may further comprise the steps:

Step 901: the HeNB GW under the HeNB receives the MME UE SIAP ID that a MME distributes to said UE, and to distribute to the MME UE SIAP ID of said UE identical with other any MME except that a said MME to judge a said MME UE SIAP ID;

For example; As shown in Figure 1; Whether HeNB GW1 is connected with MME2 with MME1 simultaneously, and the HeNB GW1 under the HeNB1 receives MME1 when being the MME UESIAP ID1 of the UE1 distribution that HeNB1 served, have among judgement and other MME that HeNB GW1 is connected and distributed this MMEUE SIAP ID1.

Step 902: if a said MME UE SIAP ID is identical with the MME UE SIAP ID that other any MME except that a said MME distributes to said UE, the HeNB GW under the HeNB distributes a MME UE SIAPID for said UE again to said MME request;

For example; If MME2 distributed this MME UE SIAP ID1 for other-end in being connected of HeNB GW1 and MME2; When promptly all being MME UE SIAP ID1; HeNBGW1 request MME1 under the HeNB1 is again for UE distributes a MME UE SIAP ID, till MME UE SIAP ID that MME1 is the UE distribution for the MME UE SIAP ID and the MME2 of UE distribution again is different.

Step 903: said the 2nd HeNB offers a said MME with a said MME UE SIAP ID, with the said UE that switches to said MME indication.

Preferably; Said method also comprises: inequality if a said MME UE SIAP ID and other any MME except that a said MME distribute to the MME UE SIAP ID of said UE, the HeNB GW under the HeNB sends to said the 2nd HeNB with a said MME UE SIAP ID through a said HeNB.

In the present embodiment; Former gateway can judge whether the MME UE SIAP ID that different MME distribute conflicts; When newly assigned ID has existed, distribute again, can guarantee that the MME UE SIAP ID that a plurality of MME distribute is different; Gateway can directly be forwarded to the subordinate base station with the MME UE SIAP ID that receives, and no longer oneself generates MME UE SIAP ID.For example gateway 1 is received the MME UE SIAP ID1 that MME distributes, and after when receiving the ID that other MME distributes, guarantee that other ID and MME UE SIAP ID1 do not conflict mutually, and this MME UE SIAP ID1 directly be forwarded to the former base station of subordinate.When UE switched, MME UE SIAP ID1 was forwarded to gateway under target BS, the target BS, MME successively, with the UE that switches to the MME indication.Because the gateway of present embodiment is different with prior art; Guarantee the ID difference that all MME distribute through judging process; Therefore do not need the ID of regeneration self, promptly need MME UE SIAP ID1 be converted into MME UE SIAP ID1-a, like this under handoff scenario; Just can MME UE SIAP ID1 directly be delivered to MME through repeatedly transmitting, but MME Direct Recognition MME UE SIAP ID1.

Can find out by the foregoing description; If two base stations are not under same gateway; And set up interface between two base stations,, needed to guarantee that different MME is the MME UE SIAP ID difference of subordinate's same UE distribution for the normal completion that guarantees to switch; When at least two MME of the gateway discovery under the base station are subordinate's UE when distributing identical MME UE SIAP ID, then ask MME to redistribute MME UE SIAP ID.So that the gateway under the base station does not identify the base-station gateway that conversion directly sends to the MME UE SIAP ID of MME distribution through the base station switching opposite end; The MME UE SIAP ID that promptly directly MME can be discerned sends to the base-station gateway that switches the opposite end, thereby has guaranteed the normal completion of switching.

Embodiment eight

The embodiment of the invention also provides a kind of device of between the base station, setting up interface.See also Figure 10, the structure chart of an enforcement of it sets up interface for the application is a kind of between the base station device comprises: judging unit 1001 with set up unit 1002.Operation principle below in conjunction with this device is further introduced its internal structure and annexation.

Judging unit 1001 is used to judge whether a HeNB and the 2nd HeNB are positioned under the same HeNBGW;

Set up unit 1002,, set up the X2 interface between a HeNB and the 2nd HeNB if be used for a HeNB and the 2nd HeNB is positioned under the same HeNB GW.

Wherein, see also Figure 11, it is a structural representation of judging unit among the application, comprising:

Obtain subelement 10011, be used to obtain the TAI tabulation of the affiliated HeNB GW of a HeNB;

First judgment sub-unit 10012 is used for judging whether the TAI of the 2nd HeNB tabulates at the TAI that obtains;

First confirms subelement 10013, if the TAI that is used for the 2nd HeNB confirms then that in the TAI of said acquisition tabulation a HeNB and the 2nd HeNB are positioned under the same HeNB GW.

Interchangeable, judging unit 1001 comprises: the indication receiving element, be used to receive indication the one HeNB and the 2nd HeNB and be positioned at the Indication message under the same HeNB GW, based on shown in Indication message confirm that a HeNB and the 2nd HeNB are positioned under the same HeNB GW.

See also Figure 12, it comprises for setting up a structural representation of unit among the application:

The address obtains subelement 10021, is used for arbitrary TNL address or the IP address that obtains the 2nd HeNB from MME and said the 2nd HeNB;

Receive subelement 10022, be used for receiver address and obtain said TNL address or the IP address that subelement sends;

Set up subelement 10023, be used for setting up the X2 interface between a HeNB and the 2nd HeNB according to said TNL address or IP address.

Preferably, said device also comprises:

Switch unit is used for realizing the sub-district switching according to the X2 interface of setting up that the switching of said sub-district is used for a HeNB subordinate UE is switched to the 2nd HeNB.

Embodiment nine

The embodiment of the invention also provides a kind of realization sub-district device for switching.See also Figure 13, it is a kind of structure chart of realizing an enforcement of sub-district device for switching of the application, comprising: judging unit 1001 and switch unit 1003.Operation principle below in conjunction with this device is further introduced its internal structure and annexation.

Switch unit 1003, if be used for a HeNB and the 2nd HeNB is positioned under the same HeNB GW, a HeNB utilizes X2 interface that the one HeNB subordinate UE is switched to the 2nd HeNB.

Wherein, judging unit 1001 comprises: obtain subelement, be used to obtain the TAI tabulation of the affiliated HeNB GW of a HeNB; First judgment sub-unit is used for judging whether the TAI of the 2nd HeNB tabulates at the TAI that obtains; First confirms subelement, if the TAI that is used for the 2nd HeNB confirms then that in the TAI of said acquisition tabulation a HeNB and the 2nd HeNB are positioned under the same HeNB GW.

Embodiment ten

The embodiment of the invention also provides a kind of realization sub-district device for switching.See also Figure 14, it is a kind of structure chart of realizing another enforcement of sub-district device for switching of the application, comprising: sign receiving element 1401, sign converting unit 1402 and first are switched indicating member 1403.Operation principle below in conjunction with this device is further introduced its internal structure and annexation.

Sign receiving element 1401 is used to receive a MME UE SIAPID who is sent by the 2nd HeNB, and a said MME UE SIAP ID is that the HeNB GW under the HeNB is that said UE distributes;

Sign converting unit 1402, being used for according to preset mapping relations the one MME UE SIAP ID being converted into can be by the 2nd MME UE SIAP ID of MME identification;

First switches indicating member 1403, is used for the 2nd MME UE SIAP ID is sent to MME, with the said UE that switches to the MME indication.

Embodiment 11

The embodiment of the invention also provides a kind of realization sub-district device for switching.See also Figure 15, it is a kind of structure chart of realizing another enforcement of sub-district device for switching of the application, comprising: sign judging unit 1501, sign transmitting element 1502 and second switch indicating member 1503.Operation principle below in conjunction with this device is further introduced its internal structure and annexation.

Sign judging unit 1501; Be used to receive the MME UESIAP ID that a MME distributes to UE, to distribute to the MME UE SIAP ID of said UE identical with other any MME except that a said MME to judge a said MME UE SIAP ID;

Sign transmitting element 1502; If it is inequality with the MME UE SIAP ID that other any MME except that a said MME distributes to said UE to be used for a said MME UE SIAP ID, a said MME UE SIAP ID is sent to the said second switching indicating member 1503 through a said HeNB;

Second switches indicating member 1503, is used for a said MME UE SIAP ID is offered a said MME, with the said UE that switches to said MME indication.

Preferably, see also Figure 16, it is a kind of structure chart of realizing another enforcement of sub-district device for switching of the application.Said device also comprises: request unit 1504; If it is identical with the MMEUE SIAP ID that other any MME except that a said MME distributes to said UE to be used for a said MME UESIAP ID, distribute a MME UESIAP ID for said UE again to said MME request.

The embodiment of the invention also provides a kind of communication system as shown in Figure 1; Wherein can introduce new function at a certain website place; As introduce at the HeNB place as before the function under same gateway whether of the different HeNB of judgement shown in the embodiment; Also can in gateway, introduce this function, be used to realize the X2 interface that UE switches or do not initiate switching so that whether decision sets up; Also can in gateway, preserve certain mapping relations like the description of previous embodiment, the ID that when the UE that switches to the MME indication, former HeNB is generated is converted into the discernible ID that MME issues, and carries out with the success that impels switching; Also can when MME distributes UEID, solve the ID collision problem, adopt like the previous embodiment method and judge whether the ID that different MME distribute repeats, and present embodiment is not done qualification.

It may be noted that the time, the title of the various network nodes of present embodiment is not used in the qualification protection range, should be endowed those skilled in the art based on implication the most widely under understanding.For example; HeNB is appreciated that and is a kind of small base station, not only comprises the Home eNodeB on chivalrous, also possibly comprise the small-sized website of other kind; Like pico, femto etc.; As long as structure and Fig. 1 of network topology are similar, and to adopt similar MME be the mode of terminal distribution ID, and then all the method for available present embodiment or equipment are realized.Present embodiment UE should be understood that it is the terminal of a kind of HeNB of access, and its type is not done qualification, can be mobile phone, landline telephone, ipad etc.Certainly the various types of messages title of present embodiment also is not used in qualification, and the message name of present embodiment is merely to be convenient to understand.

Need to prove; One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method; Be to instruct relevant hardware to accomplish through computer program; Described program can be stored in the computer read/write memory medium, and this program can comprise the flow process like the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.

More than to provided by the present inventionly a kind ofly between the base station, setting up interface, realizing that method and the relevant apparatus that switch the sub-district have carried out detailed introduction; Used specific embodiment among this paper principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.

Claims

1. a method of between the base station, setting up interface is characterized in that, comprising:

Judge whether a HeNB and the 2nd HeNB are positioned under the same HeNB GW;

If a HeNB and the 2nd HeNB are positioned under the same HeNB GW, a HeNB sets up the X2 interface between a HeNB and the 2nd HeNB.

2. method according to claim 1 is characterized in that, saidly judges whether a HeNB and the 2nd HeNB are positioned under the same HeNB GW and comprises:

The one HeNB obtains the TAI tabulation of the HeNB GW under the HeNB;

The one HeNB judges that the TAI of the 2nd HeNB is whether in the TAI tabulation that obtains;

If the TAI of the 2nd HeNB in the TAI of said acquisition tabulation, confirms that then a HeNB and the 2nd HeNB are positioned under the same HeNB GW.

3. method according to claim 2 is characterized in that, the TAI tabulation that a said HeNB obtains the HeNB GW under the 2nd HeNB comprises:

The one HeNB tabulates from the TAI that the HeNB GW under OAM, O&M, EMS, NMS or the HeNB obtains the HeNB GW under the HeNB.

4. method according to claim 1 is characterized in that, saidly judges whether a HeNB and the 2nd HeNB are positioned under the same HeNB GW and comprises:

HeNB GW judges whether a HeNB and the 2nd HeNB are positioned under the same HeNB GW under the one HeNB;

If a HeNB and the 2nd HeNB are positioned under the same HeNB GW, said method also comprises:

HeNB GW sends to a HeNB and indicates a HeNB and the 2nd HeNB to be positioned at the Indication message under the same HeNB GW under the one HeNB.

5. method according to claim 4 is characterized in that, HeNBGW judges whether a HeNB and the 2nd HeNB are positioned under the same HeNB GW and comprises under the said HeNB:

HeNB GW under the one HeNB judges that the TAI of the 2nd HeNB is whether in the TAI tabulation of self;

If in the TAI of the HeNB GW of the TAI of the 2nd HeNB under the said HeNB tabulation, confirm that then a HeNB and the 2nd HeNB are positioned under the same HeNB GW.

6. according to any described method in the claim 1 to 5, it is characterized in that the X2 interface that a said HeNB sets up between a HeNB and the 2nd HeNB comprises:

The arbitrary TNL address or the IP address that obtain two HeNB of HeNB GW from MME and said the 2nd HeNB under the one HeNB;

The one HeNB receives said TNL address or the IP address that the HeNB GW under the HeNB sends;

The one HeNB sets up the X2 interface between a HeNB and the 2nd HeNB according to said TNL address or IP address.

7. according to any described method in the claim 1 to 5, it is characterized in that said method also comprises:

The one HeNB realizes the sub-district switching according to the X2 interface of setting up, and the switching of said sub-district is used for a HeNB subordinate UE is switched to the 2nd HeNB.

8. a method that realizes that the sub-district is switched is characterized in that, comprising:

Judge whether a HeNB and the 2nd HeNB are positioned under the same HeNB GW;

If a HeNB and the 2nd HeNB are positioned under the same HeNB GW, a HeNB utilizes X2 interface that the one HeNB subordinate UE is switched to the 2nd HeNB.

9. method according to claim 8 is characterized in that, saidly judges whether a HeNB and the 2nd HeNB are positioned under the same HeNB GW and comprises:

The one HeNB obtains the TAI tabulation of the HeNB GW under the HeNB;

10. method according to claim 9 is characterized in that, the TAI tabulation that a said HeNB obtains the HeNB GW under the 2nd HeNB comprises:

11. method according to claim 8 is characterized in that, saidly judges whether a HeNB and the 2nd HeNB are positioned under the same HeNB GW and comprises:

12. method according to claim 11 is characterized in that, HeNB GW judges whether a HeNB and the 2nd HeNB are positioned under the same HeNB GW and comprises under the said HeNB:

13. a method that realizes that the sub-district is switched is characterized in that, comprising:

HeNB GW receives a MME UE SIAPID who is sent by the 2nd HeNB under the 2nd HeNB, and a said MME UE SIAP ID is that the HeNB GW under the HeNB is that said UE distributes;

HeNB GW under the 2nd HeNB converts a MME UE SIAP ID into according to preset mapping relations can be by the 2nd MME UE SIAP ID of MME identification;

HeNB GW under the 2nd HeNB is sent to MME with the 2nd MME UE SIAP ID, with the said UE that switches to the MME indication.

14. a method that realizes that the sub-district is switched is characterized in that, comprising:

HeNB GW under the one HeNB receives the MMEUE SIAP ID that a MME distributes to UE, and to distribute to the MME UE SIAP ID of said UE identical with other any MME except that a said MME to judge a said MME UE SIAP ID;

If it is inequality that a said MME UE SIAP ID and other any MME except that a said MME distribute to the MME UE SIAP ID of said UE, the HeNBGW under the HeNB sends to said the 2nd HeNB with a said MME UE SIAP ID through a said HeNB;

Said the 2nd HeNB offers a said MME with a said MME UE SIAP ID, with the said UE that switches to said MME indication.

15. method according to claim 14 is characterized in that, also comprises:

If a said MME UE SIAP ID is identical with the MME UE SIAP ID that other any MME except that a said MME distributes to said UE, the HeNB GW under the HeNB distributes a MME UE SIAP ID for said UE again to said MME request.

16. a device of between the base station, setting up interface is characterized in that, comprising:

Judging unit is used to judge whether a HeNB and the 2nd HeNB are positioned under the same HeNB GW;

Set up the unit,, set up the X2 interface between a HeNB and the 2nd HeNB if be used for a HeNB and the 2nd HeNB is positioned under the same HeNB GW.

17. device according to claim 16 is characterized in that, said judging unit comprises:

Obtain subelement, be used to obtain the TAI tabulation of the affiliated HeNB GW of a HeNB;

First judgment sub-unit is used for judging whether the TAI of the 2nd HeNB tabulates at the TAI that obtains;

First confirms subelement, if the TAI that is used for the 2nd HeNB confirms then that in the TAI of said acquisition tabulation a HeNB and the 2nd HeNB are positioned under the same HeNB GW.

18. device according to claim 16 is characterized in that, said judging unit comprises:

The indication receiving element is used to receive indication the one HeNB and the 2nd HeNB and is positioned at the Indication message under the same HeNBGW, based on shown in Indication message confirm that a HeNB and the 2nd HeNB are positioned under the same HeNB GW.

19., it is characterized in that the said unit of setting up comprises according to any described device in the claim 16 to 18:

The address obtains subelement, is used for arbitrary TNL address or the IP address that obtains the 2nd HeNB from MME and said the 2nd HeNB;

Receive subelement, be used for receiver address and obtain said TNL address or the IP address that subelement sends;

Set up subelement, be used for setting up the X2 interface between a HeNB and the 2nd HeNB according to said TNL address or IP address.

20., it is characterized in that said device also comprises according to any described device in the claim 16 to 18:

21. realize the sub-district device for switching for one kind, it is characterized in that, comprising:

Switch unit if be used for a HeNB and the 2nd HeNB is positioned under the same HeNB GW, utilizes X2 interface that the one HeNB subordinate UE is switched to the 2nd HeNB.

22. device according to claim 21 is characterized in that, said judging unit comprises:

23. device according to claim 21 is characterized in that, said judging unit comprises:

24. realize the sub-district device for switching for one kind, it is characterized in that, comprising:

The sign receiving element is used to receive a MME UE SIAP ID who is sent by the 2nd HeNB, and a said MME UE SIAP ID is that the HeNB GW under the HeNB is that said UE distributes;

The sign converting unit, being used for according to preset mapping relations the one MME UE SIAP ID being converted into can be by the 2nd MME UE SIAP ID of MME identification;

First switches indicating member, is used for the 2nd MME UE SIAP ID is sent to MME, with the said UE that switches to the MME indication.

25. realize the sub-district device for switching for one kind, it is characterized in that, comprising:

The sign judging unit is used to receive the MME UE SIAPID that a MME distributes to UE, and to distribute to the MME UE SIAP ID of said UE identical with other any MME except that a said MME to judge a said MME UE SIAP ID;

The sign transmitting element; If it is inequality with the MME UE SIAP ID that other any MME except that a said MME distributes to said UE to be used for a said MME UE SIAP ID, a said MME UE SIAP ID is sent to the said second switching indicating member through a said HeNB;

Second switches indicating member, is used for a said MME UE SIAP ID is offered a said MME, with the said UE that switches to said MME indication.

26. device according to claim 25 is characterized in that, said device also comprises:

Request unit if it is identical with the MME UE SIAP ID that other any MME except that a said MME distributes to said UE to be used for a said MME UE SIAP ID, distributes a MME UE SIAP ID for said UE to said MME request again.