CN102378209B

CN102378209B - X2 interface building method, management method and management device

Info

Publication number: CN102378209B
Application number: CN201010254378.6A
Authority: CN
Inventors: 时洁; 张亮亮
Original assignee: Huawei Technologies Co Ltd
Current assignee: Jia Shuliang
Priority date: 2010-08-13
Filing date: 2010-08-13
Publication date: 2015-01-07
Anticipated expiration: 2030-08-13
Also published as: CN102378209A

Abstract

The embodiment of the invention discloses a method for managing an X2 interface between a small base station and a macro base station through a small base station gateway. The method comprises the step of triggering an X2 interface management process after the small base station gateway receives address enquiry information which is transmitted by a first base station and is used for enquiring the address of a second base station. By introducing a judgment mechanism in an HeNB gateway (HeNBGW) and by using information of the HeNBGW about an HeNB/Macro eNB, the X2 interface of HeNB-HeNBGW-Macro eNB is built, the building process of the X2 interface of HeNB-HeNBGW-Macro eNB is optimized and the signaling overhead is reduced.

Description

The method for building up of X2 interface and management method and device

Technical field

The present invention relates to communication technical field, particularly the method for building up of X2 interface and management method and device.

Background technology

Under macro base station (Macro eNB) overlay area of wireless network, can small base station be set, as femto base station (Pico eNB), Home eNodeB (Home eNB, HeNB), Femto base station.These small base stations, by wired mode Access Core Network, because access in radio (as optical fiber) capacity is very large, while therefore this Connecting groups net mode enhances the network coverage, make whole communication system have higher capacity.

For Long Term Evolution (Long Term Evolution, LTE) heterogeneous network, as shown in Figure 1, the HeNB under Macro eNB covers is connected to core net by small base station gateway (as femto gateway HeNB GW).Under the scenes such as office buildings, market, campus network, utilize the concentrated deployment of these small base stations, effectively can strengthen the network coverage, promote spectrum efficiency, these small base stations can carry out control and management by a HeNBGW simultaneously.

At present under the above-mentioned isomery scene coexisted at HeNB and Macro eNB, existing standard proposes a kind of mobility management mechanism based on X2GW.Be specially: set up X2 interface between HeNB and HeNBGW, set up X2 interface between HeNBGW and Macro eNB, namely HeNB and Macro eNB sets up indirectly X2 interface by HeNBGW.When HeNB needs to set up X2 interface towards Macro eNB, by HeNBGW transfer related news to Macro eNB.In like manner, when Macro eNB needs to set up X2 interface towards HeNB, by HeNBGW transfer related news to Macro eNB.One of them node and another node set up X2 interface, also cry and set up X2 interface connection, and its effect makes these 2 nodes realize connection (also making X2 each other connect) each other by X2 interface, makes to realize communication by X2 interface between 2 nodes.

All be described using HeNB as the example of small base station in the embodiment of the present invention's full text, be understandable that small base station not only only has HeNB.The process of establishing of X2 interface, specific as follows:

If HeNB1 has found the existence of Macro eNB1, send the message of the address (adr1) obtaining Macro eNB1 to HeNBGW; After HeNBGW obtains above-mentioned Macro eNB1 address information by addressed messages, HeNBGW and HeNB1 and Macro eNB1 sets up X2 interface respectively, and as transfer person, the relevant information of MacroeNB or HeNB is issued opposite end.Therefore, after HeNBGW obtains the address adr1 of Macro eNB1, the method is using HeNB-GW as leader, and the X2 interface triggering HeNBGW-Macro eNB is set up; And by the address information of HeNBGW to HeNB, the X2 interface of being initiated independently HeNB-HeNBGW by HeNB is set up.

Above method is when the X2 interface of Macro eNB-HeNBGW is set up, do not consider that the X2 interface of HeNBGW-HeNB sets up situation, the X2 interface of the HeNBGW-Macro eNB therefore set up cannot obtain some information corresponding to the X2 setup message of HeNB, as the Serving cell, neighbor cell message etc. of HeNB.Thus, some informational needs corresponding to X2 setup message are after HeNB-HeNBGW and HeNBGW-Macro eNB two X2 interface are all set up, recycle mutual HeNB and the Macro eNB of other specific messages information each other, the process of these follow-up information interactions adds signaling consumption.

Summary of the invention

The embodiment of the present invention provides the method for building up of X2 interface and management method and device, to optimize X2 interface Establishing process, reduces signaling consumption.

For solving the problems of the technologies described above, provided by the present invention:

Between small base station and macro base station, managed a method for X2 interface by small base station gateway, comprising:

Small base station gateway triggers X2 interface management process after the address query message receiving inquiry second base station address that the first base station sends;

Described X2 interface management process comprises:

When described small base station gateway and the first base station and the second base station all do not set up X2 be connected time, the base station relevant information of the first base station is being sent to the second base station performing in X2 interface process of establishing to the second base station by described small base station gateway, and sets up in feedback procedure the base station relevant information of the second base station of the second base station feedback is sent to the first base station performing X2 interface to the first base station;

Or, when described small base station gateway and the second base station do not set up X2 be connected and with the first base station set up X2 be connected time, the base station relevant information of the first base station is being sent to the second base station by described small base station gateway in the second base station execution X2 interface process of establishing, and in the first base station execution base station configuration updating process, the base station relevant information of the second base station is sent to the first base station;

Or when described small base station gateway and the first base station do not set up X2 be connected and with the second base station set up X2 be connected time, described small base station gateway is set up in feedback procedure the base station relevant information of the second base station is sent to the first base station performing X2 interface process of establishing or X2 interface to the first base station, and the base station relevant information of the first base station is sent to the second base station performing in base station configuration updating process the second base station;

Or, when described small base station gateway and the second base station and the first base station all set up X2 be connected time, the base station relevant information of the first base station is sent to the second base station by described small base station gateway in the second base station execution base station configuration updating process, and in the first base station execution base station configuration updating process, the base station relevant information of the second base station is sent to the first base station;

Described first base station is small base station and described second base station is that macro base station or described first base station are macro base station and described second base station is small base station; The base station relevant information of described first base station is used for the neighborhood for the second base station maintenance first base station, and the base station relevant information of described second base station is used for the neighborhood for the first base station maintenance second base station.

The method that X2 interface is set up, comprising:

Small base station detects this small base station position and whether there occurs change, if do not change, then mark and the address of the macro base station preserved by this small base station send to small base station gateway, so that small base station gateways and starting X2 interface Establishing process; Or, inquire about between this small base station and macro base station whether set up X2 interface, if set up, then the mark of described macro base station sent to small base station gateway, so that small base station gateways and starting X2 interface Establishing process;

The X2 interface that described small base station receives the transmission of described small base station gateway sets up request message, this X2 interface sets up the base station relevant information that request message carries described macro base station, and the base station relevant information of described macro base station is used for the neighborhood safeguarding described macro base station for described small base station;

Described small base station sends X2 interface to described small base station gateway and sets up request response, this X2 interface sets up the base station relevant information that request response carries described small base station, and the base station relevant information of described small base station is used for the neighborhood safeguarding described small base station for described macro base station.

The method that X2 interface is set up, comprising:

Small base station gateway obtains the mark of the macro base station that small base station sends, and judges whether this small base station gateway and described macro base station establish X2 interface according to the mark of described macro base station;

If described small base station gateway and described macro base station do not set up X2 interface, whether described small base station gateway stores the address of macro base station according to this small base station gateway of the label detection of described macro base station;

If described small base station gateway stores the address of described macro base station, then described small base station gateway utilizes the address of described macro base station to set up SCTP SCTP with described macro base station to be connected, so that further to the foundation of this macro base station execution X2 interface on the basis that this SCTP connects.

The method that X2 interface is set up, comprising:

Small base station gateway obtains address and the mark of the macro base station that small base station sends, and judges whether this small base station gateway and described macro base station establish X2 interface according to the mark of described macro base station;

If described small base station gateway and described macro base station do not set up X2 interface, described small base station gateway utilizes the address of described macro base station to set up SCTP with described macro base station to be connected, and sets up to perform X2 interface to this macro base station further on the basis that this SCTP connects.

A kind of small base station gateway, comprising:

Apply for information receiving element, for receiving the address query message of inquiry second base station address that the first base station sends;

Interface management unit, for receive at described apply for information receiving element first base station send inquiry second base station address address query message after trigger X2 interface management process;

Described interface management unit comprises:

First message sending unit, for all do not set up when described small base station gateway and the first base station and the second base station X2 be connected time, the base station relevant information of the first base station is being sent to the second base station performing in X2 interface process of establishing to the second base station; Second message sending unit, for setting up in feedback procedure the base station relevant information of the second base station of the second base station feedback be sent to the first base station performing X2 interface to the first base station;

Or, first message sending unit, for do not set up when described small base station gateway and the second base station X2 be connected and with the first base station set up X2 be connected time, the base station relevant information of the first base station is being sent to the second base station performing in X2 interface process of establishing to the second base station; Second message sending unit, for being sent to the first base station by the base station relevant information of the second base station in the first base station execution base station configuration updating process;

Or the first message sending unit, for do not set up when described small base station gateway and the first base station X2 be connected and with the second base station set up X2 be connected time, described small base station gateway is set up in feedback procedure and the base station relevant information of the second base station is sent to the first base station performing X2 interface process of establishing or X2 interface to the first base station; Second message sending unit, for being sent to the second base station by the base station relevant information of the first base station in the second base station execution base station configuration updating process;

Or, the first message sending unit, for all set up when described small base station gateway and the second base station and the first base station X2 be connected time, the base station relevant information of the first base station is sent to the second base station performing in base station configuration updating process the second base station; Second message sending unit, for being sent to the first base station by the base station relevant information of the second base station in the first base station execution base station configuration updating process;

Wherein, described first base station is small base station and described second base station is that macro base station or described first base station are macro base station and described second base station is small base station; The base station relevant information of described first base station is used for the neighborhood for the second base station maintenance first base station, and the base station relevant information of described second base station is used for the neighborhood for the first base station maintenance second base station.

A kind of small base station, comprising: X2 request reception unit, X2 respond wherein one in transmitting element and position detection unit and query unit;

Described position detection unit, whether change is there occurs for detecting described small base station position, if do not change, then mark and the address of the macro base station preserved by this small base station send to small base station gateway, so that small base station gateways and starting X2 interface Establishing process;

Described query unit, for inquiring about between described small base station and described macro base station whether set up X2 interface, if set up, then sent to small base station gateway by the mark of described macro base station, so that small base station gateways and starting X2 interface Establishing process;

Described X2 request reception unit, the X2 interface sent for receiving described small base station gateway sets up request message, this X2 interface sets up the base station relevant information that request message carries described macro base station, and the base station relevant information of described macro base station is used for the neighborhood safeguarding described macro base station for described small base station;

Described X2 responds transmitting element, request response is set up for sending X2 interface to described small base station gateway, this X2 interface sets up the base station relevant information that request response carries described small base station, and the base station relevant information of described small base station is used for the neighborhood safeguarding described small base station for described macro base station.

A kind of small base station gateway, comprising:

According to the mark of described macro base station, mark receiving element, for obtaining the mark of the macro base station that small base station sends, judges whether this small base station gateway and described macro base station establish X2 interface;

Whether address detection unit, for when described small base station gateway and described macro base station do not set up X2 interface, store the address of macro base station according to this small base station gateway of label detection of described macro base station;

Interface sets up unit, during for detecting that described small base station gateway stores the address of described macro base station at described address detection unit, utilize the address of described macro base station to set up SCTP with described macro base station to be connected, set up to perform X2 interface to this macro base station further on the basis that this SCTP connects.

A kind of small base station gateway, comprising:

According to the mark of described macro base station, judging unit, for obtaining address and the mark of the macro base station that small base station sends, judges whether described small base station gateway and described macro base station establish X2 interface;

Interface sets up unit, during for judging that described small base station gateway and described macro base station do not set up X2 interface at described judging unit, utilize the address of described macro base station to set up SCTP with described macro base station to be connected, set up to perform X2 interface to this macro base station further on the basis that this SCTP connects.

Technique scheme has following beneficial effect: introduce judgment mechanism at HeNBGW, utilize the existing information about HeNB/MacroeNB of HeNBGW, set up the X2 interface of HeNB-HeNBGW-MacroeNB, optimize the X2 interface Establishing process of HeNB-HeNBGW-Macro eNB, thus reduce signaling consumption.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is a kind of LTE system structural representation in prior art;

Fig. 2 is the X2 interface management method schematic flow sheet of the embodiment of the present invention;

Fig. 3 is the X2 interface method for building up schematic flow sheet of the embodiment of the present invention;

Fig. 4 A is the X2 interface method for building up schematic flow sheet of the embodiment of the present invention;

Fig. 4 B is the X2 interface method for building up schematic flow sheet of the embodiment of the present invention;

Fig. 5 A is the X2 interface management method schematic flow sheet of the embodiment of the present invention;

Fig. 5 B is the X2 interface management method schematic flow sheet of the embodiment of the present invention;

Fig. 5 C-1 is the X2 interface management method schematic flow sheet of the embodiment of the present invention;

Fig. 5 C-2 is the X2 interface management method schematic flow sheet of the embodiment of the present invention;

Fig. 5 D is the X2 interface management method schematic flow sheet of the embodiment of the present invention;

Fig. 5 E is the X2 interface management method schematic flow sheet of the embodiment of the present invention;

Fig. 5 F is the X2 interface management method schematic flow sheet of the embodiment of the present invention;

Fig. 5 G is the X2 interface management method schematic flow sheet of the embodiment of the present invention;

Fig. 5 H is the X2 interface management method schematic flow sheet of the embodiment of the present invention;

Fig. 6 A is the X2 interface management method schematic flow sheet of the embodiment of the present invention;

Fig. 6 B is the X2 interface management method schematic flow sheet of the embodiment of the present invention;

Fig. 7 is embodiment of the present invention small base station gateway schematic diagram;

Fig. 8 is embodiment of the present invention small base station schematic diagram;

Fig. 9 is embodiment of the present invention small base station gateway schematic diagram;

Figure 10 is the invention process small base station gateway schematic diagram.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

Embodiments provide a kind of method being managed X2 interface by small base station gateway between small base station and macro base station, the executive agent of this method is small base station gateway, as shown in Figure 2, comprising:

201: the address query message of inquiry second base station address that small base station gateway sends in reception first base station.

202: small base station gateway triggers X2 interface management process after the address query message receiving inquiry second base station address that the first base station sends;

Above-mentioned X2 interface management process comprises:

When above-mentioned small base station gateway and the first base station and the second base station all do not set up X2 be connected time, the base station relevant information of the first base station is being sent to the second base station performing in X2 interface process of establishing to the second base station by above-mentioned small base station gateway, and sets up in feedback procedure the base station relevant information of the second base station of the second base station feedback is sent to the first base station performing X2 interface to the first base station;

Particularly, when above-mentioned small base station gateway and the first base station and the second base station do not set up X2 be connected time, the address adr2 of this small base station gateway is sent to above-mentioned first base station by above-mentioned small base station gateway; The first X2 interface that above-mentioned first base station of above-mentioned small base station gateway reception sends according to above-mentioned adr2 sets up request message, above-mentioned first X2 interface sets up in request message the base station relevant information of carrying above-mentioned first base station, and sets up request message by the second X2 interface the base station relevant information of above-mentioned first base station is sent to above-mentioned second base station; The first X2 interface that above-mentioned small base station gateway receives the second base station transmission sets up request response, above-mentioned first X2 interface sets up in request response the base station relevant information of carrying above-mentioned second base station, and sets up response message by the second X2 interface the base station relevant information of above-mentioned second base station is sent to above-mentioned first base station.

Or, when above-mentioned small base station gateway and the second base station do not set up X2 be connected and with the first base station set up X2 be connected time, the base station relevant information of the first base station is being sent to the second base station by above-mentioned small base station gateway in the second base station execution X2 interface process of establishing, and in the first base station execution base station configuration updating process, the base station relevant information of the second base station is sent to the first base station;

Particularly, when above-mentioned small base station gateway and the second base station do not set up X2 be connected and with the first base station set up X2 be connected time, above-mentioned small base station gateway sends X2 interface to the second base station and sets up request message, and above-mentioned X2 interface sets up the base station relevant information that request message carries above-mentioned first base station; The X2 interface that above-mentioned small base station gateway receives the second base station transmission sets up request response, above-mentioned X2 interface sets up in request response the base station relevant information of carrying above-mentioned second base station, and by the first base station configuration updating information, the base station relevant information of above-mentioned second base station is sent to above-mentioned first base station.

Or when above-mentioned small base station gateway and the first base station do not set up X2 be connected and with the second base station set up X2 be connected time, above-mentioned small base station gateway is set up in feedback procedure the base station relevant information of the second base station is sent to the first base station performing X2 interface process of establishing or X2 interface to the first base station, and the base station relevant information of the first base station is sent to the second base station performing in base station configuration updating process the second base station;

Particularly, when between above-mentioned small base station gateway and above-mentioned first base station, there is no X2 interface and and have X2 interface between above-mentioned second base station time, above-mentioned small base station gateway sends X2 interface to above-mentioned first base station and sets up request message, and above-mentioned X2 interface sets up in request message the base station relevant information of carrying above-mentioned second base station; The X2 interface that above-mentioned small base station gateway receives the first base station transmission sets up request response, above-mentioned X2 interface sets up in request response the base station relevant information of carrying above-mentioned first base station, and sends to above-mentioned second base station by the base station relevant information of above-mentioned first base station of the second base station configuration updating information.

In addition, above-mentioned when above-mentioned small base station gateway and the first base station do not set up X2 be connected and with the second base station set up X2 be connected time, the address adr2 of this small base station gateway is sent to above-mentioned first base station by above-mentioned small base station gateway; Above-mentioned small base station gateway receives the X2 interface that above-mentioned first base station sends according to above-mentioned adr2 and sets up request message, and above-mentioned X2 interface sets up the base station relevant information that request message comprises the first base station; Above-mentioned small base station gateway sends X2 interface to the first base station and sets up request response, and above-mentioned X2 interface sets up in request response the base station relevant information of carrying above-mentioned second base station; The base station relevant information of above-mentioned first base station is sent to above-mentioned second base station by the second base station configuration updating information by above-mentioned small base station gateway.

Or, when above-mentioned small base station gateway and the second base station and the first base station all set up X2 be connected time, the base station relevant information of the first base station is sent to the second base station by above-mentioned small base station gateway in the second base station execution base station configuration updating process, and in the first base station execution base station configuration updating process, the base station relevant information of the second base station is sent to the first base station;

Particularly, when above-mentioned small base station gateway with all set up between above-mentioned first base station and above-mentioned second base station X2 be connected time, the base station relevant information of above-mentioned second base station is sent to above-mentioned first base station by the first base station configuration updating information by above-mentioned small base station gateway, by the second base station configuration updating information, the base station relevant information of above-mentioned first base station is sent to above-mentioned second base station.

Wherein, above-mentioned first base station is small base station and above-mentioned second base station is that macro base station or above-mentioned first base station are macro base station and above-mentioned second base station is small base station; The base station relevant information of above-mentioned first base station is used for the neighborhood for the second base station maintenance first base station, and the base station relevant information of above-mentioned second base station is used for the neighborhood for the first base station maintenance second base station.The described neighborhood of a node indicates neighbor node or the neighbor cell of this node, such as, can be neighboring node list etc.

Introduce judgment mechanism at HeNBGW, utilize the existing information about HeNB/MacroeNB of HeNBGW, set up the X2 interface of HeNB-HeNBGW-Macro eNB, optimize the X2 interface Establishing process of HeNB-HeNBGW-Macro eNB, thus reduce signaling consumption.Small base station gateway can for the two provides X2 interface service between small base station and macro base station, even if do not have direct X2 interface to be connected between small base station with macro base station each other, also by being connected with the X2 interface that small base station gateway is set up respectively, thus small base station is made X2 interface can be used to communicate with opposite end with macro base station.The base station relevant information of a small base station and macro base station wherein side is supplied to the opposing party by small base station gateway wherein in X2 interface process of establishing, is convenient to the neighborhood of described the opposing party according to described maintenance of information one.The base station relevant information of a node can include but not limited to the information such as Serving cell, neighbor cell of this node be used to indicate its neighbor node or neighbor cell.

The embodiment of the present invention additionally provides the method that another kind of X2 interface is set up, and the executive agent of this method is small base station, and the method as shown in Figure 3, comprising under can being applied to the scene that small base station starts shooting from shutting down to:

301: small base station detects this small base station position and whether there occurs change;

302: if do not change, then mark and the address of the macro base station preserved by this small base station send to small base station gateway, so that small base station gateways and starting X2 interface Establishing process; Or, inquire about between this small base station and macro base station whether set up X2 interface, if set up, then the mark of above-mentioned macro base station sent to small base station gateway, so that small base station gateways and starting X2 interface Establishing process;

303: the X2 interface that above-mentioned small base station receives the transmission of above-mentioned small base station gateway sets up request message, this X2 interface sets up the base station relevant information that request message carries above-mentioned macro base station, and the base station relevant information of above-mentioned macro base station is used for the neighborhood safeguarding above-mentioned macro base station for above-mentioned small base station;

304: above-mentioned small base station sends X2 interface to above-mentioned small base station gateway and sets up request response, this X2 interface sets up the base station relevant information that request response carries above-mentioned small base station, and the base station relevant information of above-mentioned small base station is used for the neighborhood safeguarding above-mentioned small base station for above-mentioned macro base station.

The embodiment of the present invention additionally provides the method that another kind of X2 interface is set up, and the executive agent of this method is small base station gateway, as shown in Figure 4 A, comprising:

401A: small base station gateway obtains the mark of the macro base station that small base station sends, and judges whether this small base station gateway and described macro base station establish X2 interface according to the mark of described macro base station;

402A: if described small base station gateway and described macro base station do not set up X2 interface, whether above-mentioned small base station gateway stores the address of macro base station according to this small base station gateway of the label detection of above-mentioned macro base station;

403A: if above-mentioned small base station gateway stores the address of above-mentioned macro base station, then above-mentioned small base station gateway utilizes the address of above-mentioned macro base station and above-mentioned macro base station to set up SCTP (Stream Control Transmission Protocol, SCTP) connect, set up to perform X2 interface to this macro base station further on the basis that this SCTP connects.

In the present embodiment, whether small base station gateway self stores the address of macro base station by detecting, and connect according to setting up X2 with the macro base station address stored with corresponding macro base station, so that described small base station gateway is set up respectively with the small base station and macro base station of initiating X2 connection establishment process or safeguards that X is connected.Small base station gateway can for the two provides X2 interface service between small base station and macro base station, even if do not have direct X2 interface to be connected between small base station with macro base station each other, also by being connected with the X2 that small base station gateway is set up respectively, thus small base station is made X2 interface can be used to communicate with opposite end with macro base station.The present embodiment can utilize the address of existing macro base station to set up SCTP connection, those skilled in the art can know X2 interface and be based upon on SCTP connection basis, and how utilizing existing SCTP to connect, to set up X2 interface be further prior art, the present embodiment does not do further discussion.Alternatively, the present embodiment can combine with embodiment described in Fig. 1, namely, when adopting the present embodiment to make small base station gateway set up between small base station and macro base station or manage X interface, in X2 interface process of establishing, the base station relevant information of a small base station and macro base station wherein side can be supplied to the other side.Also can after X interface is successfully established by base station configuration updating information in the described base station relevant information transmitting the opposing party to the one party in small base station and macro base station, the present embodiment does not limit.

As shown in Figure 4 B, the embodiment of the present invention additionally provides the method that another kind of X2 interface is set up, and the executive agent of this method is small base station gateway, as shown in Figure 4 B, comprising:

401B: above-mentioned small base station gateway obtains address and the mark of the macro base station that small base station sends, and judges whether this small base station gateway and above-mentioned macro base station establish X2 interface according to the mark of above-mentioned macro base station;

402B: if above-mentioned small base station gateway and above-mentioned macro base station do not set up X2 interface, above-mentioned small base station gateway utilizes the address of above-mentioned macro base station to set up SCTP with above-mentioned macro base station to be connected, and sets up to perform X2 interface to this macro base station further on the basis that this SCTP connects.

In the present embodiment, whether small base station gateway self stores the address of macro base station by detecting, and connect according to setting up X2 with the macro base station address stored with corresponding macro base station, so that described small base station gateway is set up respectively with the small base station and macro base station of initiating X2 connection establishment process or safeguards that X is connected.Small base station gateway can for both provide X2 interface service between small base station and macro base station, even if do not have direct X2 interface to be connected between small base station with macro base station each other, also by being connected with the X2 that small base station gateway is set up respectively, thus small base station is made X2 interface can be used to communicate with opposite end with macro base station.The present embodiment can utilize the address of existing macro base station to set up SCTP connection, those skilled in the art can know X2 interface and be based upon on SCTP connection basis, and how utilizing existing SCTP to connect, to set up X2 interface be further prior art, the present embodiment does not do further discussion.Alternatively, the present embodiment can combine with embodiment described in Fig. 1, namely, when adopting the present embodiment to make small base station gateway set up between small base station and macro base station or manage X interface, in X2 interface process of establishing, the base station relevant information of a small base station and macro base station wherein side can be supplied to the other side.Also can after X interface is successfully established by base station configuration updating information in the described base station relevant information transmitting the opposing party to the one party in small base station and macro base station, the present embodiment does not limit.

In following examples, small base station is all for HeNB, and all refer to MacroeNB without special instruction eNB, the application scenarios of the inventive method is for LTE; Be understandable that, small base station not only comprises HeNB, and the application scenarios of the embodiment of the present invention is also not limited only to LTE, can also be other network, and therefore above citing should not be construed as the restriction to the embodiment of the present invention.In addition, in all embodiments, no matter be MacroeNB/HeNB/HeNBGW, after obtaining the address information expected, before initiating the setup message of X2, all utilize the receiving terminal of the address information of acquisition and X2setup message to establish SCTP (Stream Control Transmission Protocol, SCTP) to connect.Figure for simplicity, eliminates this process.

First introduce, the X2 interface process of establishing when HeNB finds new Macro eNB.

The HeNBGW-HeNB/HeNBGW-Macro eNB that scene one: HeNB is initiated does not have the X2 interface process of establishing in X2 interface situation, as shown in Figure 5A, comprising:

First 501A:HeNB initiates the address query message for eNB to HeNBGW.This message can carry mark (the eNB Identifier of eNB, eNB ID), the ID of HeNB, TAI (Tracking Area Identity), and SON (Self-optimization Network) information (comprising address information).In subsequent embodiment, this message can comprise the ID of message initiator, and the ID of TAI and inquiry target, and TAI, and SON information.Illustrate no longer one by one.

After 502A:HeNBGW receives this address query message, detect that the ID of HeNB is under being attached to oneself, then detect ID and the X2 interface connection of oneself of each eNB in address query message, if HeNB-HeNBGW and HeNBGW-eNB of correspondence does not have X2 interface, initiate subsequent step 503A-511A.

The address adr2 of oneself is sent to HeNB by 503A:HeNBGW, and this message and 504A, without rigid precedence relationship, need the real message transmission time of basis to determine.

504A-507A:HeNBGW obtains the address adr1 of Macro eNB.Concrete mode 504A-507A is respectively: address query message is sent to MME by HeNBGW, and address query message is transmitted to eNB by MME; The address adr1 of oneself is sent to MME by eNB, and adr1 is sent to HeNBGW by MME; In embodiments of the present invention, need the address sent can adopt address query message to carry, this embodiment of the present invention is illustrated no longer one by one.The mode obtaining address in subsequent embodiment all with reference to obtain manner herein, can illustrate this no longer one by one.

After 508A: after 503A, HeNB receive the address query message returned, judge that oneself and HeNBGW do not have X2 interface, then initiate X2setup message.

509A-511A:HeNBGW utilizes X2setup and X2setup to respond (ACK) message, makes HeNB and MacroeNB know the relevant information of the other side, as the information etc. of Serving cell, neighbor cell.X2setup and setup ACK all can carry base station relevant information, and HeNBGW, after receiving the X2setup message of one end, can reintegrate message, then by X2setup transmission of messages to opposite end; And HeNBGW is after receiving the X2setup ACK message of one end, can reintegrate message, then be transferred to opposite end by X2setup ACK message, this subsequent embodiment is illustrated no longer one by one.

The X2 interface process of establishing that the HeNBGW-HeNB that scene two: HeNB is initiated has X2 interface/HeNBGW-Macro eNB not have in X2 interface situation, as shown in Figure 5 B, comprising:

First 501B:HeNB initiates the address query message for eNB to HeNBGW.

After 502B:HeNBGW receives this address query message, detect that the ID of HeNB is under being attached to oneself, the then ID of each eNB and the X2 interface connection of oneself in detect-message, if the HeNB-HeNBGW of correspondence has X2 interface, but HeNBGW-eNB does not have X2 interface, initiate subsequent step 503B-510B.

503B-506B:HeNBGW obtains the address adr1 of Macro eNB.Detailed process and 503A-506A similar.

507B:HeNBGW initiates X2setup, by HeNB relevant information, as Serving cell, neighbor cell message etc., is transferred to MacroeNB.

508B:HeNBGW receives the relevant information of MacroeNB, responds (ACK) send by MacroeNB by X2setup.

After 509B:HeNBGW receives the relevant information of MacroeNB, the relevant information of MacroeNB is transferred to HeNB by the X2 interface of existing HeNBGW-HeNB.

The HeNBGW-HeNB that scene three: HeNB is initiated does not have X2 interface/HeNBGW-Macro eNB to have X2 interface process of establishing in X2 interface situation, and this scene has two kinds of implementations, as shown in Fig. 5 C-1, comprising:

First 501C-1:HeNB initiates the address query message for eNB to HeNBGW.

After 502C-1:HeNBGW receives this address query message, detect that the ID of HeNB is under being attached to oneself, the then ID of each eNB and the X2 interface connection of oneself in detect-message, if the HeNB-HeNBGW of correspondence does not have X2 interface, but HeNBGW-eNB has X2 interface, initiate subsequent step 503C-1-505C-1.

503C-1-504C-1: generally, HeNBGW now just can obtain the address adr of HeNB, utilize this information, and HeNBGW can set up SCTP with HeNB and be connected.The relevant information of the MacroeNB that oneself stores by HeNBGW utilizes X2setup () to be transferred to HeNB, and the relevant information of oneself is fed back to HeNBGW by HeNB.

505C-1:HeNBGW utilizes eNB configuration update message (Configuration Update) that HeNB related news are sent to Macro eNB.505C-1 and 503C-1-504C-1 is directly without strict time sequencing.

As shown in Fig. 5 C-2, comprising:

First 501C-2:HeNB initiates the address query message for eNB to HeNBGW.

After 502C-2:HeNBGW receives this address query message, detect that the ID of HeNB is under being attached to oneself, the then ID of each eNB and the X2 interface connection of oneself in detect-message, if the HeNB-HeNBGW of correspondence does not have X2 interface, but HeNBGW-eNB has X2 interface, initiate subsequent step 503C-2-505C-2.

503C-2: if HeNBGW does not have the adr information of HeNB, then the address information of oneself is sent to HeNB by HeGW.

After 504C-2:HeNB receives the address query information returned, set up SCTP and connect, initiate X2setup and set up.

505C-2:HeNBGW returns X2setup response message, and the relevant information of MacroeNB is passed to HeNB.

506C-2:HeNBGW initiates updating message to MacroeNB, and the information such as the Serving cell of HeNB are sent to MacroeNB.

505C-2 and 506C-2 is without strict time order and function relation.

The HeNBGW-HeNB that scene four: HeNB is initiated has X2 interface/HeNBGW-Macro eNB to have X2 interface process of establishing in X2 interface situation, as shown in Figure 5 D, comprising:

First 501D:HeNB initiates the address query message for eNB to HeNBGW.

After 502D:HeNBGW receives this address query message, detect that the ID of HeNB is under being attached to oneself, the then ID of each eNB and the X2 interface connection of oneself in detect-message, if the HeNB-HeNBGW of correspondence has X2 interface, and HeNBGW-eNB has X2 interface, initiate subsequent step 503D-504D.

503D-504D: because HeNBGW utilized existing X2 interface to store relevant information, then by the related information transmission of HeNB/Macro eNB to opposite end.

Above-mentioned scene one, to scene four, is the description of the X2 interface process of establishing of the HeNB-HeNBGW-Macro eNB for HeNB initiation.Follow-up scene five to scene eight is: for the description of the X2 interface process of establishing of the MacroeNB-HeNBGW-HeNB of Macro eNB initiation.

The HeNBGW-HeNB/HeNBGW-Macro eNB that scene five: Macro eNB initiates does not have the X2 interface process of establishing in X2 interface situation, as shown in fig. 5e, comprising:

First 501E:Macro eNB initiates the address query message for HeNB to MME.

Message is given to HeNBGW by routing mechanism after receiving this address query message by 502E:MME.

503E:HeNBGW detects that the ID of HeNB is under being attached to oneself, judges that oneself and MacroeNB/HeNB do not have X2 interface, performs follow-up 504E-507E.

The address adr2 of oneself is sent to MacroeNB by 504E, 506E:HeNBGW.

505E, 507E: the object of this two step is that HeNBGW obtains the IP address information of HeNB.Generally, after HeNB start, by certain operations, HeNBGW has the IP address of HeNB, and therefore 505E and 507E is can selection operation.If HeNBGW has had HeNBIP address information, directly can set up SCTP and connect.And 504E and 505E does not have strict precedence relationship.

508E-511E:Macro eNB utilizes X2setup message to set up the X2 interface of MacroeNB-HeNBGW/HeNBGW-HeNB, and by the transfer effect of HeNBGW, HeNB and MacroeNB knows the relevant information of the other side, as the information of Serving cell, neighbor cell etc.

X2 interface process of establishing under the HeNBGW-HeNB that scene six: Macro eNB initiates has X2 interface and HeNBGW-MacroeNB not have X2 interface situation, as illustrated in figure 5f, comprising:

First 501F:Macro eNB initiates the address query message for eNB to MME.

Message is given to HeNBGW by routing mechanism after receiving this address query message by 502F:MME.

After 502F:HeNBGW receives this address query message, detect that the ID of HeNB is under being attached to oneself, the then ID of each eNB and the X2 interface connection of oneself in detect-message, if the HeNB-HeNBGW of correspondence has X2 interface, but HeNBGW-Macro eNB does not have X2 interface, initiate subsequent step 504F-508F.

The address adr2 of oneself is sent to MacroeNB by 504F, 505F:HeNBGW.

506F, 508F:Macro eNB initiates X2setup, by the relevant information of Macro eNB, as Serving cell, neighbor cell message etc., is transferred to HeNBGW, and the information of the HeNB that it stores itself is sent to Macro eNB by HeNBGW.

After 507F:HeNBGW receives relevant information, the relevant information of MacroeNB is transferred to HeNB by the X2 interface of existing HeNBGW-HeNB.507F and 508F does not have strict precedence relationship.

If it should be noted that, HeNBGW is configured by OAM or other modes are aware of the address information of MacroeNB, 504F and 505F can not perform, like this, the X2setup message of 506F mails to MacroeNB by HeNBGW, the information of the HeNB that HeNBGW utilizes 506F it oneself to be stored sends to Macro eNB, and the X2setup ACK message of 508F mails to HeNBGW by MacroeNB.Just 507F can be initiated after receiving 508F.

The HeNBGW-HeNB that scene seven: Macro eNB initiates has the X2 interface process of establishing in X2 interface situation without X2 interface/HeNBGW-Macro eNB, as depicted in fig. 5g, comprising:

First 501G:Macro eNB initiates the address query message for eNB to MME.

Message is given to HeNBGW by routing mechanism after receiving this address query message by 502G:MME.

After 503G:HeNBGW receives this address query message, detect that the ID of HeNB is under being attached to oneself, the then ID of each eNB and the X2 interface connection of oneself in detect-message, if the HeNB-HeNBGW of correspondence does not have X2 interface, but HeNBGW-Macro eNB has X2 interface, initiate subsequent step 504G-508G.

504G-505G: the object of this two step is that HeNBGW obtains the IP address information of HeNB.Generally, after HeNB start, by certain operations, after 503G, HeNBGW has the IP address of HeNB, and therefore 504G-505G is can selection operation.If HeNBGW has had HeNBIP address information, directly can set up SCTP and connect.

506G-507G:HeNBGW initiates X2setup message to by HeNB, and the MacroeNB related news that oneself stores are sent to HeNB, and the relevant information of oneself is sent to HeNBGW by response message by HeNB, as Serving cell, the neighbor cell message of HeNB.

The relevant information of HeNB is sent to MacroeNB by 508G:HeNBGW.

X2 interface process of establishing under the HeNBGW-HeNB that scene eight: Macro eNB initiates has X2 interface/HeNBGW-MacroeNB to have X2 interface situation, as illustrated in fig. 5h, comprising:

First 501H:Macro eNB initiates the address query message for eNB to MME.

Message is given to HeNBGW by routing mechanism after receiving this address query message by 502H:MME.

After 503H:HeNBGW receives this address query message, detect that the ID of HeNB is under being attached to oneself, the then ID of each eNB and the X2 interface connection of oneself in detect-message, if the HeNB-HeNBGW of correspondence has X2 interface, and HeNBGW-eNB has X2 interface, initiate subsequent step 504H-505H.

504H-505H: because HeNBGW utilized existing X2 interface to store relevant information, then by the related information transmission of HeNB/Macro eNB to opposite end.

The embodiment of the present invention additionally provides the scene of another kind of type: because HeNB is deployed in a place usually, just switching on and shutting down frequently, and Macro eNB position is substantially constant, is in (power on) state that powers on always.So the X2 interface process of establishing that HeNB initiates after starting shooting at every turn, the information that can make full use of preservation carries out X2 interface foundation.Embodiments provide two kinds of flow processs under this scene:

Flow process one: as shown in Figure 6A, comprising:

601A:HeNB is each to be set up with Macro eNB indirectly after X2 interface, from the address information of HeNBGW acquisition Macro eNB, and preserves.When after HeNB start, detect HeNB position whether to change, if position does not change and detects that the neighbor cell message or SCTP link information that save acquisition or X2 set up relevant historical information, then can get the ID by eNB address information and eNB from these message, then the ID of eNB address information and eNB be sent to HeNBGW.

Whether 602A:HeNBGW detects eNB according to eNBID has X2 to connect, if do not have, utilizes the address information initiation SCTP connection of the eNB obtained and X2 interface to set up.If there is X2 interface, subsequent process is see the follow-up flow process of the 503C in scene three.

Flow process two: as shown in Figure 6B, comprising:

601B:HeNBGW is the historical information that each HeNB preserves that it set up the MacroeNB of X2 interface, as eNBID, address information etc.When after HeNB start, whether HeNB detects HeNB position and changes, and detects whether once set up X2 interface with the Macro eNB detected, if position does not change and once set up X2 interface, then eNBID is sent to HeNBGW by specific messages.

Whether 602B:HeNBGW detects eNB according to eNBID has X2 interface, if do not have but store the historical address information of eNB, utilizes this information to initiate SCTP and connects and X2 interface foundation.If there is X2 interface, subsequent process is see the follow-up flow process of the 503C in scene three.

Introduce judgment mechanism at HeNBGW, utilize the existing information about HeNB/MacroeNB of HeNBGW, set up the X2 interface of HeNB-HeNBGW-Macro eNB, optimize the X2 interface Establishing process of HeNB-HeNBGW-Macro eNB, thus reduce signaling consumption.

The embodiment of the present invention additionally provides a kind of small base station gateway, as shown in Figure 7, comprising:

Apply for information receiving element 701, for receiving the address query message of inquiry second base station address that the first base station sends;

Interface management unit 702, for receive first base station send inquiry second base station address address query message after trigger X2 interface management process;

Above-mentioned interface management unit 702 comprises:

First message sending unit 7021, for all do not set up when above-mentioned small base station gateway and the first base station and the second base station X2 be connected time, the base station relevant information of the first base station is being sent to the second base station performing in X2 interface process of establishing to the second base station; Second message sending unit 7022, for setting up in feedback procedure the base station relevant information of the second base station of the second base station feedback be sent to the first base station performing X2 interface to the first base station;

Or, first message sending unit 7021, for do not set up when above-mentioned small base station gateway and the second base station X2 be connected and with the first base station set up X2 be connected time, the base station relevant information of the first base station is being sent to the second base station performing in X2 interface process of establishing to the second base station; Second message sending unit 7022, for being sent to the first base station by the base station relevant information of the second base station in the first base station execution base station configuration updating process;

Or the first message sending unit 7021, for do not set up when above-mentioned small base station gateway and the first base station X2 be connected and with the second base station set up X2 be connected time, above-mentioned small base station gateway is set up in feedback procedure and the base station relevant information of the second base station is sent to the first base station performing X2 interface process of establishing or X2 interface to the first base station; Second message sending unit 7022, for being sent to the second base station by the base station relevant information of the first base station in the second base station execution base station configuration updating process;

Or, the first message sending unit 7021, for all set up when above-mentioned small base station gateway and the second base station and the first base station X2 be connected time, the base station relevant information of the first base station is sent to the second base station performing in base station configuration updating process the second base station; Second message sending unit 7022, for being sent to the first base station by the base station relevant information of the second base station in the first base station execution base station configuration updating process;

Above-mentioned first base station is small base station and above-mentioned second base station is that macro base station or above-mentioned first base station are macro base station and above-mentioned second base station is small base station; The base station relevant information of above-mentioned first base station is used for the neighborhood for the second base station maintenance first base station, and the base station relevant information of above-mentioned second base station is used for the neighborhood for the first base station maintenance second base station.

The embodiment of the present invention additionally provides a kind of small base station, as shown in Figure 8, comprising: X2 request reception unit 801, X2 respond transmitting element 802 and position detection unit 803 and wherein in query unit 804

Above-mentioned position detection unit 803, whether change is there occurs for detecting above-mentioned small base station position, if do not change, then mark and the address of the macro base station preserved by this small base station send to small base station gateway, so that small base station gateways and starting X2 interface Establishing process;

Above-mentioned query unit 804, for inquiring about between above-mentioned small base station and above-mentioned macro base station whether set up X2 interface, if set up, then sent to small base station gateway by the mark of above-mentioned macro base station, so that small base station gateways and starting X2 interface Establishing process;

Above-mentioned X2 request reception unit 801, the X2 interface sent for receiving above-mentioned small base station gateway sets up request message, this X2 interface sets up the base station relevant information that request message carries above-mentioned macro base station, and the base station relevant information of above-mentioned macro base station is used for the neighborhood safeguarding above-mentioned macro base station for above-mentioned small base station;

Above-mentioned X2 responds transmitting element 802, request response is set up for sending X2 interface to above-mentioned small base station gateway, this X2 interface sets up the base station relevant information that request response carries above-mentioned small base station, and the base station relevant information of above-mentioned small base station is used for the neighborhood safeguarding above-mentioned small base station for above-mentioned macro base station.

The embodiment of the present invention is also supplied to a kind of small base station gateway, as shown in Figure 9, comprising:

According to the mark of described macro base station, mark receiving element 901, for obtaining the mark of the macro base station that small base station sends, judges whether this small base station gateway and described macro base station establish X2 interface;

Whether address detection unit 902, for when described small base station gateway and described macro base station do not set up X2 interface, store the address of macro base station according to this small base station gateway of label detection of above-mentioned macro base station;

Interface sets up unit 903, during for detecting that above-mentioned small base station gateway stores the address of above-mentioned macro base station at address above mentioned detecting unit, utilize the address of above-mentioned macro base station to set up SCTP with above-mentioned macro base station to be connected, set up to perform X2 interface to this macro base station further on the basis that this SCTP connects.

The embodiment of the present invention is also supplied to another kind of small base station gateway, as shown in Figure 10, comprising:

According to the mark of above-mentioned macro base station, judging unit 1001, for obtaining address and the mark of the macro base station that small base station sends, judges whether above-mentioned small base station gateway and above-mentioned macro base station establish X2 interface;

Interface sets up unit 1002, during for judging that above-mentioned small base station gateway and above-mentioned macro base station do not set up X2 interface at above-mentioned judging unit, utilize the address of above-mentioned macro base station to set up SCTP with above-mentioned macro base station to be connected, set up to perform X2 interface to this macro base station further on the basis that this SCTP connects.

Introduce judgment mechanism at HeNBGW, utilize the existing information about HeNB/MacroeNB of HeNBGW, set up the X2 interface of HeNB-HeNBGW-Macro eNB, optimize the X2 interface Establishing process of HeNB-HeNBGW-MacroeNB, thus reduce signaling consumption.

One of ordinary skill in the art will appreciate that all or part of step realized in above-described embodiment method is that the hardware that can carry out instruction relevant by program completes, program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.

Above the method for building up of the X2 interface that the embodiment of the present invention provides and management method and device are described in detail, apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention or equipment for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, to sum up, this description should not be construed as limitation of the present invention.It should be noted that, multiple embodiment of the present invention can be combined with each other when not clashing, and such as, can be combined with each other the object reaching X2 interface and manage between the embodiment of embodiment illustrated in fig. 2 and Fig. 4 A or Fig. 4 B.

Claims

1. between small base station and macro base station, managed a method for X2 interface by small base station gateway, it is characterized in that, comprising:

Described X2 interface management process comprises:

2. method according to claim 1, it is characterized in that, described when described small base station gateway and the first base station and the second base station do not set up X2 be connected time, the base station relevant information of the first base station is being sent to the second base station performing in X2 interface process of establishing to the second base station by described small base station gateway, and sets up and in feedback procedure, the base station relevant information of the second base station of the second base station feedback is sent to the first base station and comprises performing X2 interface to the first base station:

When described small base station gateway and the first base station and the second base station do not set up X2 be connected time, the address adr2 of this small base station gateway is sent to described first base station by described small base station gateway;

The first X2 interface that described first base station of described small base station gateway reception sends according to described adr2 sets up request message, described first X2 interface sets up in request message the base station relevant information of carrying described first base station, and sets up request message by the second X2 interface the base station relevant information of described first base station is sent to described second base station;

The first X2 interface that described small base station gateway receives the second base station transmission sets up request response, described first X2 interface sets up in request response the base station relevant information of carrying described second base station, and sets up response message by the second X2 interface the base station relevant information of described second base station is sent to described first base station.

3. method according to claim 1, it is characterized in that, described when described small base station gateway and the second base station do not set up X2 be connected and with the first base station set up X2 be connected time, the base station relevant information of the first base station is being sent to the second base station performing in X2 interface process of establishing to the second base station by described small base station gateway, and in base station configuration updating process, the base station relevant information of the second base station is sent to the first base station and comprises performing the first base station:

When described small base station gateway and the second base station do not set up X2 be connected and with the first base station set up X2 be connected time, described small base station gateway sends X2 interface to the second base station and sets up request message, and described X2 interface sets up the base station relevant information that request message carries described first base station;

The X2 interface that described small base station gateway receives the second base station transmission sets up request response, described X2 interface sets up in request response the base station relevant information of carrying described second base station, and by the first base station configuration updating information, the base station relevant information of described second base station is sent to described first base station.

4. method according to claim 1, it is characterized in that, described when described small base station gateway and the first base station do not set up X2 be connected and with the second base station set up X2 be connected time, the base station relevant information of the second base station is being sent to the first base station performing in X2 interface process of establishing to the first base station by described small base station gateway, and in base station configuration updating process, the base station relevant information of the first base station is sent to the second base station and comprises performing the second base station:

When between described small base station gateway and described first base station, there is no X2 interface and and have X2 interface between described second base station time, described small base station gateway sends X2 interface to described first base station and sets up request message, and described X2 interface sets up in request message the base station relevant information of carrying described second base station;

The X2 interface that described small base station gateway receives the first base station transmission sets up request response, described X2 interface sets up in request response the base station relevant information of carrying described first base station, and sends to described second base station by the base station relevant information of the first base station described in the second base station configuration updating information.

5. method according to claim 4, it is characterized in that, described when described small base station gateway and the first base station do not set up X2 be connected and with the second base station set up X2 be connected time, described small base station gateway is set up in feedback procedure the base station relevant information of the second base station is sent to the first base station performing X2 interface to the first base station, and in base station configuration updating process, the base station relevant information of the first base station is sent to the second base station and comprises performing the second base station:

Described when described small base station gateway and the first base station do not set up X2 be connected and with the second base station set up X2 be connected time, the address adr2 of this small base station gateway is sent to described first base station by described small base station gateway;

Described small base station gateway receives the X2 interface that described first base station sends according to described adr2 and sets up request message, and described X2 interface sets up the base station relevant information that request message comprises the first base station;

Described small base station gateway sends X2 interface to the first base station and sets up request response, and described X2 interface sets up in request response the base station relevant information of carrying described second base station;

The base station relevant information of described first base station is sent to described second base station by the second base station configuration updating information by described small base station gateway.

6. method according to claim 1, it is characterized in that, when described small base station gateway and the second base station and the first base station all set up X2 be connected time, the base station relevant information of the first base station is sent to the second base station performing in base station configuration updating process the second base station by described small base station gateway, and in base station configuration updating process, the base station relevant information of the second base station is sent to the first base station and comprises performing the first base station:

When described small base station gateway with all set up between described first base station and described second base station X2 be connected time, the base station relevant information of described second base station is sent to described first base station by the first base station configuration updating information by described small base station gateway, by the second base station configuration updating information, the base station relevant information of described first base station is sent to described second base station.

7. a method for X2 interface foundation, is characterized in that, comprising:

8. a method for X2 interface foundation, is characterized in that, comprising:

If described small base station gateway and described macro base station do not set up X2 interface, whether described small base station gateway stores the address of described macro base station according to this small base station gateway of the label detection of described macro base station;

If described small base station gateway stores the address of described macro base station, then described small base station gateway utilizes the address of described macro base station to set up SCTP SCTP with described macro base station to be connected, to perform X2 interface to this macro base station further to set up on the basis that this SCTP connects, for realizing providing X2 interface service to provide basis respectively between small base station and macro base station further.

9. a method for X2 interface foundation, is characterized in that, comprising:

If described small base station gateway and described macro base station do not set up X2 interface, described small base station gateway utilizes the address of described macro base station to set up SCTP with described macro base station to be connected, to perform X2 interface to this macro base station further to set up on the basis that this SCTP connects, for realizing providing X2 interface service to provide basis respectively between small base station and macro base station further.

10. a small base station gateway, is characterized in that, comprising:

Described interface management unit comprises:

11. 1 kinds of small base stations, is characterized in that, comprising: X2 request reception unit, X2 respond wherein one in transmitting element and position detection unit and query unit;

12. 1 kinds of small base station gateways, is characterized in that, comprising:

Whether address detection unit, for when described small base station gateway and described macro base station do not set up X2 interface, store the address of described macro base station according to this small base station gateway of label detection of described macro base station;

Interface sets up unit, during for detecting that described small base station gateway stores the address of described macro base station at described address detection unit, utilize the address of described macro base station to set up SCTP with described macro base station to be connected, to perform X2 interface to this macro base station further to set up on the basis that this SCTP connects, for realizing providing X2 interface service to provide basis respectively between small base station and macro base station further.

13. 1 kinds of small base station gateways, is characterized in that, comprising:

Interface sets up unit, during for judging that described small base station gateway and described macro base station do not set up X2 interface at described judging unit, utilize the address of described macro base station to set up SCTP with described macro base station to be connected, to perform X2 interface to this macro base station further to set up on the basis that this SCTP connects, for realizing providing X2 interface service to provide basis respectively between small base station and macro base station further.