CN102316604B - Method for building X2 interface between family base stations in long term evolution (LTE) - Google Patents
Method for building X2 interface between family base stations in long term evolution (LTE) Download PDFInfo
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Abstract
The invention relates to a method for building an X2 interface between family base stations in long term evolution (LTE), which comprises the following steps that: a mobility management entity (MME) receives enhanced node (eNB) configuration transmission messages sent by home enhanced node (HeNB)-1 and sends the eNB identity (ID) and TAI carried in the eNB configuration transmission messages to the HeNB gateway (GW) through the MME configuration transmission message; the HeNB GW receives the MME configuration transmission message sent by the MME and returns the transmission network layer (TNL) address of the HeNB-2 to the HeNB-1 or returns the TNL address of the HeNB GW to the HeNB-1 according to the MME configuration transmission message; when the TNL address of the HeNB-2 is received by the HeNB-1, the X2 interface building request is sent to the HeNB-2, and a direct X2 interface is built with the HeNB-2; when the TNL address of the HeNB GW is received by the HeNB-1, the X2 interface building request is sent to the HeNB GW, and an indirect X2 interface is built with the HeNB-2. The method provided by the invention has the advantage that the condition that the execution connection type of the HeNB GW can not be distinguished in the network structure simultaneously with the direct X2 interface connection and the indirect X2 interface connection can be avoided.
Description
Technical field
The present invention relates to network communications technology field, particularly relate to a kind of set up X2 interface in LTE between Home eNodeB method.
Background technology
In 3GPP, introduced the concept of Home eNodeB HeNB, Home eNodeB is that a kind of power is less, is suitable for the user with fixed target group in a certain restriction environment, as for family, campus network, enterprise network etc.HeNB can be connected to EPC by femto gateway HeNB GW, also can be directly connected to EPC, and this is determined by operator completely, does not do mandatory provision.Existing Home eNodeB has 3 types:
Open mode HeNB: there is no what difference from the viewpoint of measures of UE and common eNB, do not need the access control of closed user group CSG.
Mixed mode HeNB: can be both CSG member UE service, can be also non-CSG member UE service; When CSG member UE access mixed mode HeNB, there is higher priority.
Closed mode HeNB: can only provide service for CSG member UE.
Fig. 1 is femtocell architecture schematic diagram of the prior art; As shown in Figure 1, in existing framework, relate to the direct X2 interface of HeNB, directly connect two Radio Access Network RAN nodes, can only be used for belonging between the HeNB of identical CSG, or the HeNB of mixing/closed mode is to the direction of open mode HeNB.Only between the HeNB that belongs to identical CSG, or HeNB is on the direction of open mode HeNB, has direct X2 interface.X2 interface the use is here mobility optimization, in handoff procedure, does not need core net to carry out the access control of CSG, directly carries out switching by X2 interface.And in framework before this, between HeNB and other eNB/HeNB node, all can only carry out and switch by S1 interface.
In the further evolution of existing framework, consider that the X2 interface between each relevant HeNB adopts netted connection may bring the SCTP (SCTP of a large amount of X2 transport layers, Stream Control Transmission Protocol) the processing load of coupling, once proposed to adopt indirect X2 interface to connect HeNB, by the concentrated and middle rotating function of HeNB GW, reduce the number of SCTP coupling.For example, in a region of disposing a large amount of HeNB (as large enterprise), in order to reduce connected load, disposed again HeNB GW, these HeNB can adopt indirect X2 connected mode so, and the X2 of self is connected and is only connected to HeNB GW; X2 afterwards and between other eNB/HeNB is connected, and is further processed by HeNB GW.
Fig. 2 is the mixing scene schematic diagram that direct X2 interface connects with X2 interface is connected indirectly, and in the scene shown in Fig. 2, HeNB-1 and HeNB-2 belong to same C SG, is that direct X2 interface connects between them.And between HeNB-2, HeNB-3 and HeNB-4 and HeNB GW, have an X2 interface, employing be that indirect X2 interface connects.The flow process that direct X2 interface sets up and the flow process that X2 interface is set up are indirectly described respectively as an example of Fig. 3 and Fig. 4 example.
Fig. 3 is the signaling process figure that carries out direct X2 interface foundation in prior art, as shown in Figure 3, wherein, by the relevant parameter of HeNB-1 is: eNB ID-1, tracing area information TAI-1, transmission network layer address TNL-1; The relevant parameter of HeNB GW is: eNB ID-2, TNL-2; The relevant parameter of HeNB-2 is: eNB ID-3, TNL-2, TAI-3.
Step 301, the UE under source base station HeNB-1 finds new target BS HeNB-2, the test sending to HeNB-1 reports middle feedback to have the information of new base station; HeNB-1 initiates TNL address acquisition process.
Step 302, HeNB-1 sends eNB configuration message transfer to Mobility Management Entity MME, in described eNB configuration message transfer, carries the relevant parameter of source base station HeNB-1 and the relevant parameter of target BS HeNB-2.
Step 303, MME sends MME configuration message transfer to HeNB GW, in described MME configuration message transfer, carries the relevant parameter of source base station HeNB-1 and the relevant parameter of target BS HeNB-2.
Step 304, HeNB GW determine other eNB/HeNB can and oneself control HeNB between set up direct X2 interface, set up the direct X2 interface between HeNB-1 and HeNB-2.
Step 305, the MME configuration message transfer receiving is transmitted to HeNB-2 by HeNB GW.
Step 306, HeNB-2 sends eNB configuration message transfer to HeNB GW, in described eNB configuration message transfer, carries the relevant parameter of source base station HeNB-2 and the relevant parameter of target BS HeNB-1, returns to the TNL address of HeNB-2 to HeNB GW.
Step 307, the eNB configuration message transfer that HeNB GW sends HeNB-2 is transmitted to MME.
Step 308, MME sends MME configuration message transfer to HeNB-1, in described MME configuration message transfer, carries the relevant parameter of HeNB-2 and the relevant parameter of HeNB-1.
Step 309, the TNL address that obtains HeNB-2 the MME configuration message transfer that HeNB-1 sends from MME, initiates the request of setting up X2 interface to HeNB-2 according to described TNL address.
Fig. 4 is the signaling process figure that carries out indirect X2 interface foundation in prior art, as shown in Figure 4, wherein, by the relevant parameter of HeNB-1 is: eNB ID-1, TAI-1, TNL-1; The relevant parameter of HeNB GW is: eNB ID-2, TNL-2; The relevant parameter of HeNB-2 is: eNB ID-3, TNL-2, TAI-3.
Step 401, the UE under source base station HeNB-1 finds new target BS HeNB-2, the test sending to HeNB-1 reports middle feedback to have the relevant information of new target BS; HeNB-1 initiates TNL address acquisition process.
Step 402, HeNB-1 sends eNB configuration message transfer to MME, in described eNB configuration message transfer, carries the relevant parameter of source base station HeNB-1 and the relevant parameter of target BS HeNB-2.
Step 403, MME sends MME configuration message transfer to HeNB GW, in described MME configuration message transfer, carries the relevant parameter of source base station HeNB-1 and the relevant parameter of target BS HeNB-2.
Step 404, HeNB GW determines to set up indirect X2 interface between HeNB that other eNB/HeNB can and oneself control, sets up respectively the X2 interface between HeNB-1 and HeNB GW, and X2 interface between HeNB-2 and HeNB GW.
Step 405, HeNB GW judges whether to exist the X2 interface being connected with HeNB-2; If there is no, set up the X2 interface between HeNB-2 and HeNB GW, if set up, send eNB configuration message transfer to MME.
Step 406, HeNB GW sends eNB configuration message transfer to MME, carries the relevant parameter of HeNB GW in described eNB configuration message transfer, and the relevant parameter of target BS HeNB-1.What return to HeNB-1 in this step is the TNL address of HeNB GW.
Step 407, MME sends MME configuration message transfer to HeNB-1, carries the relevant parameter of HeNB GW in described MME configuration message transfer, and the relevant parameter of destination node HeNB-1, and in this step, what return is the TNL address of HeNB GW.
Step 408, the TNL address that obtains HeNB GW the MME configuration message transfer that HeNB-1 sends from MME, initiates the request of setting up X2 interface to HeNB GW according to described TNL address.
As shown in Figure 4, in this flow process, set up respectively the X2 interface between HeNB-1 and HeNB GW, the X2 interface between HeNB-2 and HeNB GW, the indirect X2 interface of realizing between HeNB-1 and HeNB-2 is connected.
In scene as shown in Figure 2, suppose to have disposed in a shopping center HeNB of a lot of open modes, for simplified network structure, dispose at the mall a HeNBGW, and adopted the pattern of indirect X2 interface.In order to reduce client frequently to pass in and out shopping center, core net is brought to higher signaling traffic load, should allow to adopt and optimize switching mode between eNB and these open HeNB simultaneously.But consider the simplification of network configuration and the reduction of S CTP administrative loads, can adopt the mode of indirect X2 interface, between eNB and HeNB GW, set up X2 interface, make to set up by the indirect X2 interface of HeNB GW between the HeNB of the each open mode under eNB and HeNB GW.Under this scene, HeNB-1 and eNB may initiate TNL address acquisition and cross range request and set up X2 interface, and HeNB GW can not judge from MME receives MME configuration message transfer, should respond the TNL address of self or the TNL address of the HeNB of its management to MME.The problem place of this deployment scenario that Here it is.
In sum, there is at the same time the network architecture of direct X2 interface connection and the network architecture that exists indirect X2 interface to connect, for HeNB GW, sometimes there will be and cannot distinguish the situation that according to which kind of connect to carry out.
Summary of the invention
The invention provides a kind of set up X2 interface in LTE between Home eNodeB method, can avoid existing at the same time direct X2 interface to connect and existing in the network architecture of indirect X2 interface connection, HeNB GW there will be cannot distinguish the situation that according to which kind of connect to carry out.For achieving the above object, technical scheme of the present invention is achieved in that
The invention discloses a kind of set up X2 interface in LTE between Home eNodeB method, the method comprises: MME receives the eNB configuration message transfer that HeNB-1 sends, and the eNB ID, the TAI that carry is configured to message transfer by MME send to HeNB GW in described eNB configuration message transfer; HeNB GW receives the MME configuration message transfer that MME sends, and returns to the transport network layer TNL address of HeNB-2 or returns to the TNL address of HeNB GW to HeNB-1 to HeNB-1 according to the information of carrying in described MME configuration message transfer; If what HeNB-1 received is the TNL address of HeNB-2, send X2 interface to HeNB-2 and set up request message, set up direct X2 interface with HeNB-2; If what HeNB-1 received is the TNL address of HeNB GW, send X2 interface to HeNB GW and set up request message, set up indirect X2 interface with HeNB-2.
In said method, if the UE under HeNB-1 detects HeNB-2,, in described eNB configuration message transfer, further carry the closed subscriber group identity CSGID of HeNB-1; Described CSG ID is used to indicate HeNB-1 and belongs to which CSG; MME configures message transfer by the CSG ID of the HeNB-1 carrying in described eNB configuration message transfer by MME and sends to HeNB GW.
In said method, described MME configures message transfer by the CSG ID of the HeNB-1 carrying in described eNB configuration message transfer by MME and sends to HeNB GW to comprise: the UE under HeNB-1 detects after HeNB-2, is reported eNB ID, the TAI of HeNB-2, CSG ID are sent to HeNB-1 by test; HeNB-1 configures the CSG ID of message transfer to MME transmission HeNB-1 by eNB; MME configures message transfer by the CSG ID of the HeNB-1 receiving by MME and sends to HeNB GW.
In said method, the method further comprises: if described UE does not detect the CSG ID of HeNB-2, or described HeNB-1 do not belong to CSG community, or described HeNB-1 is in open mode; In described eNB configuration message transfer, do not carry CSGID information.
In said method, described HeNB GW returns to the TNL address of HeNB-2 or comprises to the TNL address that HeNB-1 returns to HeNB GW to HeNB-1 according to MME configuration message transfer: if carried the CSG ID of HeNB-1 in described MME configuration message transfer, HeNB GW judges that whether the CSG ID of HeNB-1 is identical with the CSG ID of HeNB-2, if identical, HeNB GW returns to the TNL address of HeNB-2 to HeNB-1; If not identical, HeNB GW returns to the TNL address of HeNB GW to HeNB-1.
In said method, described HeNB GW returns to the TNL address of HeNB-2 or comprises to the TNL address that HeNB-1 returns to HeNB GW to HeNB-1 according to MME configuration message transfer:
If do not carry the CSG ID of HeNB-1 in described MME configuration message transfer, HeNB GW returns to the TNL address of HeNB GW to HeNB-1.
In said method, described HeNB GW returns to the TNL address of HeNB-2 or comprises to the TNL address that HeNB-1 returns to HeNB GW to HeNB-1 according to MME configuration message transfer:
HeNB GW judges that according to the eNB ID of HeNB-1 carrying in described MME configuration message transfer and the eNB ID of HeNB-2 HeNB-1 and HeNB-2 are whether under this HeNB GW;
If so, HeNB GW returns to the TNL address of HeNB-2 to HeNB-1; If not, HeNB GW returns to the TNL address of HeNB GW to HeNB-1.
In said method, described HeNB GW returns to the TNL address of HeNB-2 or comprises to the TNL address that HeNB-1 returns to HeNB GW to HeNB-1 according to MME configuration message transfer: HeNB GW is according to the eNB ID of HeNB-1 and the eNB ID of HeNB-2 that carry in described MME configuration message transfer, judges that HeNB-1 or HeNB-2 are whether under this HeNB GW; If so, HeNB GW returns to the TNL address of HeNB-2 to HeNB-1.
In said method, described HeNB GW returns to the TNL address of HeNB-2 or comprises to the TNL address that HeNB-1 returns to HeNB GW to HeNB-1 according to MME configuration message transfer: HeNB GW is according to the eNB ID of HeNB-1 and the eNB ID of HeNB-2 that carry in described MME configuration message transfer, judges that HeNB-1 or HeNB-2 are whether under this HeNB GW; If so, HeNB GW returns to the TNL address of HeNB GW to HeNB-1.
From the above, HeNB GW for set up direct X2 interface or indirectly X2 interface there is decision-making capability; Wherein, HeNB GW, by CSG ID or eNB ID in MME configuration message transfer are contrasted to judgement, determines to adopt which kind of X2 interface to be connected between HeNB-1 and HeNB-2.Method provided by the invention has solved in the time that network had both supported that direct X2 interface was also supported indirect X2 interface, HeNB GW receive should return after MME configuration message transfer self TNL address or the TNL address of its HeNB under managing.
Accompanying drawing explanation
Fig. 1 is femtocell architecture schematic diagram of the prior art;
Fig. 2 is the mixing scene schematic diagram that direct X2 interface connects with X2 interface is connected indirectly;
Fig. 3 is the signaling process figure that carries out direct X2 interface foundation in prior art;
Fig. 4 is the signaling process figure that carries out indirect X2 interface foundation in prior art;
Fig. 5 is the flow chart of setting up X2 interface in the present invention in a kind of LTE between HeNB;
Fig. 6 is the flow chart judging by CSG ID in the embodiment of the present invention;
Fig. 7 is the flow chart judging by eNB ID in further embodiment of this invention.
Embodiment
The invention discloses a kind of set up X2 interface in LTE between Home eNodeB method, the information of carrying in the MME configuration message transfer that the method sends the MME receiving by HeNB GW judges, is determined adopt direct X2 interface to be connected or use indirect X2 interface to connect between HeNB-1 and HeNB-2 by HeNB GW.
Fig. 5 is the flow chart of setting up X2 interface in the present invention in a kind of LTE between HeNB; As shown in Figure 5,
In an embodiment of the present invention, by increase a CSG id information in MME configuration message transfer and eNB configuration message transfer, described CSG id information is for identifying the CSG at HeNB-1 place; A corresponding CSG ID of CSG.Wherein, the UE under HeNB-1 searches after new target BS HeNB-2, is reported eNB ID, the TAI of HeNB-2, CSG ID are sent to HeNB-1 by test; Wherein, in described eNB configuration message transfer, carry eNB ID, the TAI of eNB ID, TAI, CSG ID and the HeNB-2 of HeNB-1; MME configures message transfer by the CSG ID of the HeNB-1 carrying in described eNB configuration message transfer by MME and sends to HeNB GW.
Wherein, in the time of Bu Shi CSG community, Target cell, or described HeNB-1 do not belong to CSG community, or described HeNB-1 is in the time of open mode, in described eNB configuration message transfer, does not carry CSG id information.
Fig. 6 is the flow chart judging by CSG ID in the embodiment of the present invention; As shown in Figure 6,
In embodiment as shown in Figure 6, the eNB configuration message transfer that carries HeNB-1 relevant information and HeNB-2 relevant information is sent to MME by HeNB-1, MME configures message transfer by MME described HeNB-1 relevant information and HeNB-2 relevant information is sent to HeNB GW, HeNB GW judges according to the information of carrying in the described MME configuration message transfer receiving, if carried CSG id information in described MME configuration message transfer, and the CSG ID of HeNB-1 is identical with the CSG ID of HeNB-2, between HeNB GW judgement HeNB-1 and HeNB-2, adopt direct X2 interface to be connected, HeNB GW returns to the TNL address of HeNB-2 to HeNB-1, otherwise, if the CSG ID of HeNB-1 is not identical with the CSG ID of HeNB-2, or the CSG ID that does not carry HeNB-1 in described MME configuration message transfer, adopts indirect X2 interface to be connected between HeNB GW judgement HeNB-1 and HeNB-2, and HeNB GW returns to the TNL address of HeNB GW to HeNB-1.HeNB-1 can be by returning to the TNL address of the HeNB GW obtaining or the TNL address of HeNB-2, initiates X2 interface and set up request, carries out X2 interface and set up operation.
In another embodiment of the present invention, HeNB GW compares the eNB ID of the HeNB-2 in the eNB ID of HeNB-1 and the eNB ID of HeNB-2 and the local canned data that carry in the MME configuration message transfer receiving, judges that HeNB-1 and HeNB-2 are whether under this HeNB GW; HeNB GW determines to return to the TNL address of HeNB GW or return to the TNL address of HeNB-2 to HeNB-1 to HeNB-1 by result of determination.
Fig. 7 is the flow chart judging by eNB ID in further embodiment of this invention, as shown in Figure 7,
In embodiment as shown in Figure 7, do not increasing or revising under the condition of existing signaling, HeNB GW judge that by the eNB ID of HeNB-1 and the eNB ID of HeNB-2 HeNB-1 and HeNB-2 are whether under this HeNB GW, determines to make to use between HeNB-1 and HeNB-2 direct X2 interface or or indirect X2 interface connects with this.Wherein, in this embodiment, the UE under HeNB-1 is reported eNB ID, the TAI of newfound target BS HeNB-2 is sent to HeNB-1 by measurement.In the MME configuration message transfer that HeNB GW receives, have the eNB ID of HeNB-1 and the eNB ID of HeNB-2, HeNB GW contrasts judgement according to described information and local canned data.
In other embodiments of the invention, directly in HeNB GW, define, as long as connect with the relevant all X2 interface of the HeNB under this HeNB GW the mode that all adopts direct X2 interface to connect.Be to carry the eNB ID of HeNB-1 and the eNB ID of HeNB-2 in the MME configuration message transfer that receives of HeNB GW; HeNB GW compares by the eNB ID of HeNB-1 and the eNB ID of HeNB-2 and local canned data, judges that HeNB-1 or HeNB-2 are whether under this HeNB GW; If HeNB-1 or HeNB-2 are under HeNB GW, HeNB GW returns to the TNL address of HeNB-2 to HeNB-1.
Or directly in HeNB GW, define, as long as connect with the relevant all X2 interface of the HeNB under this HeNB GW the mode that all adopts indirect X2 interface to connect.Be to carry the eNB ID of HeNB-1 and the eNB ID of HeNB-2 in the MME configuration message transfer that receives of HeNBGW; HeNB GW compares according to the eNB ID of the eNB ID of HeNB-1 and HeNB-2 and local canned data, judges that HeNB-1 or HeNB-2 are whether under this HeNBGW; If HeNB-1 or HeNB-2 are under HeNB GW, HeNB GW returns to the TNL address of HeNB GW to HeNB-1.
In sum, in method provided by the invention, by increase the information of a CSG ID for identification sources HeNB place CSG in MME configuration message transfer, HeNB GW judges according to described CSG ID, has between the HeNB of identical CSG ID and adopts direct X2 interface to connect; Or the eNB ID configuring in message transfer by MME judges, all between the HeNB under this HeNB GW management, adopts direct X2 interface to connect; Or the eNB ID configuring in message transfer by MME judges, all between the HeNB under this HeNB GW management, adopts indirect X2 interface to link; Technical scheme provided by the invention has solved in the time that network had both supported that direct X2 interface was also supported indirect X2 interface, HeNB GW receive should return after MME configuration message transfer self TNL address or the TNL address of its HeNB under managing.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, be equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (8)
1. a method of setting up X2 interface in Long Term Evolution LTE between Home eNodeB HeNB, is characterized in that, the method comprises:
Mobility Management Entity MME receives the eNB configuration message transfer that First Family base station HeNB-1 sends, and the Base Station Identification eNB ID, the tracing area information TAI that carry is configured to message transfer by MME send to HeNB GW in described eNB configuration message transfer;
HeNB GW receives the MME configuration message transfer that MME sends, and returns to the transport network layer TNL address of HeNB-2 or returns to the TNL address of HeNB GW to HeNB-1 to HeNB-1 according to the information of carrying in described MME configuration message transfer;
If what HeNB-1 received is the TNL address of HeNB-2, send X2 interface to HeNB-2 and set up request message, set up direct X2 interface with HeNB-2; If what HeNB-1 received is the TNL address of HeNB GW, send X2 interface to HeNB GW and set up request message, set up indirect X2 interface with HeNB-2;
Wherein, if the UE under HeNB-1 detects HeNB-2,, in described eNB configuration message transfer, further carry the closed subscriber group identity CSG ID of HeNB-1;
Described CSG ID is used to indicate HeNB-1 and belongs to which CSG; MME configures message transfer by the CSG ID of the HeNB-1 carrying in described eNB configuration message transfer by MME and sends to HeNB GW.
2. method according to claim 1, is characterized in that, described MME configures message transfer by the CSG ID of the HeNB-1 carrying in described eNB configuration message transfer by MME and sends to HeNB GW to comprise:
UE under HeNB-1 detects after HeNB-2, is reported eNB ID, the TAI of HeNB-2, CSG ID are sent to HeNB-1 by test; HeNB-1 configures the CSG ID of message transfer to MME transmission HeNB-1 by eNB; MME configures message transfer by the CSG ID of the HeNB-1 receiving by MME and sends to HeNB GW.
3. method according to claim 1, is characterized in that, the method further comprises:
If described UE does not detect the CSG ID of HeNB-2, or described HeNB-1 do not belong to CSG community, or described HeNB-1 is in open mode; In described eNB configuration message transfer, do not carry CSG id information.
4. method according to claim 1, is characterized in that, described HeNB GW returns to the TNL address of HeNB-2 or comprises to the TNL address that HeNB-1 returns to HeNB GW to HeNB-1 according to MME configuration message transfer:
If carried the CSG ID of HeNB-1 in described MME configuration message transfer, HeNB GW judges that whether the CSG ID of HeNB-1 is identical with the CSG ID of HeNB-2, if identical, HeNB GW returns to the TNL address of HeNB-2 to HeNB-1; If not identical, HeNB GW returns to the TNL address of HeNB GW to HeNB-1.
5. method according to claim 3, is characterized in that, described HeNB GW returns to the TNL address of HeNB-2 or comprises to the TNL address that HeNB-1 returns to HeNB GW to HeNB-1 according to MME configuration message transfer:
If do not carry the CSG ID of HeNB-1 in described MME configuration message transfer, HeNB GW returns to the TNL address of HeNB GW to HeNB-1.
6. method according to claim 1, is characterized in that, described HeNB GW returns to the TNL address of HeNB-2 or comprises to the TNL address that HeNB-1 returns to HeNB GW to HeNB-1 according to MME configuration message transfer:
HeNB GW judges that according to the eNB ID of HeNB-1 carrying in described MME configuration message transfer and the eNB ID of HeNB-2 HeNB-1 and HeNB-2 are whether under this HeNB GW;
If so, HeNB GW returns to the TNL address of HeNB-2 to HeNB-1; If not, HeNB GW returns to the TNL address of HeNB GW to HeNB-1.
7. method according to claim 1, is characterized in that, described HeNB GW returns to the TNL address of HeNB-2 or comprises to the TNL address that HeNB-1 returns to HeNB GW to HeNB-1 according to MME configuration message transfer:
HeNB GW is according to the eNB ID of HeNB-1 and the eNB ID of HeNB-2 that carry in described MME configuration message transfer, judges that HeNB-1 or HeNB-2 are whether under this HeNB GW;
If so, HeNB GW returns to the TNL address of HeNB-2 to HeNB-1.
8. method according to claim 1, is characterized in that, described HeNB GW returns to the TNL address of HeNB-2 or comprises to the TNL address that HeNB-1 returns to HeNB GW to HeNB-1 according to MME configuration message transfer:
HeNB GW is according to the eNB ID of HeNB-1 and the eNB ID of HeNB-2 that carry in described MME configuration message transfer, judges that HeNB-1 or HeNB-2 are whether under this HeNB GW;
If so, HeNB GW returns to the TNL address of HeNB GW to HeNB-1.
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| US10057838B2 (en) * | 2013-04-26 | 2018-08-21 | Qualcomm Incorporated | X2 setup and routing at an X2-gateway |
| CN104469883A (en) * | 2013-09-25 | 2015-03-25 | 中兴通讯股份有限公司 | X2 message notification method, family base station and X2 gateway |
| CN104469976A (en) * | 2013-09-25 | 2015-03-25 | 中兴通讯股份有限公司 | Method, device and system for connection establishment |
| CN104519594B (en) * | 2013-09-27 | 2019-08-30 | 中兴通讯股份有限公司 | Connect method for building up and device, system |
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