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CN102111833A - Method for acquiring configuration information and base station - Google Patents

Method for acquiring configuration information and base station Download PDF

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Publication number
CN102111833A
CN102111833A CN2010191140319A CN201019114031A CN102111833A CN 102111833 A CN102111833 A CN 102111833A CN 2010191140319 A CN2010191140319 A CN 2010191140319A CN 201019114031 A CN201019114031 A CN 201019114031A CN 102111833 A CN102111833 A CN 102111833A
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China
Prior art keywords
interface
base station
described base
indication information
district
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Chinese (zh)
Inventor
汪颖
刘爱娟
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China Academy of Telecommunications Technology CATT
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China Academy of Telecommunications Technology CATT
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Priority to CN2010191140319A priority Critical patent/CN102111833A/en
Priority to PCT/CN2011/070829 priority patent/WO2011095127A1/en
Publication of CN102111833A publication Critical patent/CN102111833A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention provides a method for acquiring configuration information, which comprises the following steps: when setting up a base station or managing the relationship of adjacent cells, the base station acquires X2 interface indication information of the adjacent cells; and the base station judges whether or not X2 interfaces exist with the adjacent cells according to the X2 interface indication information, and stores the X2 interface indication information if the X2 interfaces exist with the adjacent cells. The invention further provides a base station, which comprises an acquiring module and a judging/storing module. According to the method and the base station provided by the invention, the base station can judge whether or not the X2 interfaces exist with the adjacent cells, and receives and stores the information if the X2 interfaces exist with the adjacent cells, and the HO (Hand Over) via the X2 interfaces can be realized when UE (User Equipment) needs to be handed over, so that the pressure access to a core network can be reduced, and the HO success rate is guaranteed.

Description

Method that a kind of configuration information obtains and base station
Technical field
The present invention relates to digital communicating field, particularly relate to adjacent community configured information obtains in a kind of LTE system method and base station.
Background technology
Present mobile communication more and more trends towards providing the high-speed transfer multimedia service, LTE (Long TermEvolution, Long Term Evolution), the birth of the family base station of long evolving system has effectively improved system and has experienced in the transmission of covering, throughput and the indoor user of hot zones.In the standardized process of LTE, notion and the technology of a kind of HeNB (HomeeNodeB, family base station) are arisen at the historic moment.Different with the base station of traditional cellular communication, family base station be a kind of small-sized, can be installed in base station indoor, flexible configuration.Have statistics to show, for multimedia service at a high speed, broadband services more applications scene is indoor and hot zones.Adopt traditional cellular mobile communication mode then to the support deficiency of this type of demand.The birth of family base station just for solve such contradiction, offer need multimedia service indoor user with better user experience.
The LTE system has changed wireless access way except in the Access Network part, has introduced outside some enhancement techniques, and bigger change has also been arranged on the network overall structure.The LTE system has adopted a kind of flat network configuration, cancelled WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA)) RNC of system (Radio Network Controller, radio network controller), NodeB is upgraded to eNodeB (enhanced Node B, the expanded type base station), eNode B is integrated, and the function of RNC such as management, handover management, the flow of wireless network resource compiled etc. in the past, further reduce the transmission process time delay, strengthened the flexibility ratio of the network operation.In the LTE system, eNB is a comprehensive powerful access network node.
Introduced the LTE system of family base station, consistent basically with the LTE system that does not dispose family base station on the network configuration of integral body, but volume is little, Installation Flexibility is high because family base station need possess, the communication relative complex between the corresponding family base station.Present LTE standard also wouldn't be supported the X2 interface between the family base station.E-UTRAN has introduced HeNBGW (HomeeNB Gateway, family base-station gateway) on logical construction, be equivalent to expand the S1 interface between family base station and the core net, thereby can dispose more family base station in system.We can think that family base-station gateway is to be used for centralized control layer (C-Plane), especially the S1-MME interface gateway module concentrator.And the S1-U interface of family base station end can end at and carries out logic between family base-station gateway or family base station that can be by direct client layer (U-Plane) and the gateway and connect.
Figure 1 shows that the network architecture of having introduced family base station (HeNB) among the R9.As shown in fig. 1, it between the eNB X2 interface, eNB and MME (Mobility Management Entity, the mobile management module) between the S1 interface, HeNB can directly be connected with MME, also can be linked into MME by a centralized node HeNB GW, not have interface between the HeNB, HeNB can only link to each other with a HeNB GW simultaneously.In the above-mentioned network architecture, there is not X2 interface between the HeNB, therefore switch and all realize by the S1 interface.In conjunction with shown in Figure 2, S1 interface switching flow between the above-mentioned HeNB.Idiographic flow comprises the steps:
Step 1: (User Equipment, subscriber equipment) can switch to Target cell if source HeNB thinks UE, sends handoff request, i.e. handover required message to MME.Wherein, source HeNB sends to HeNB GW with handover required message, and HeNB GW further sends to MME with this message.Carry the CSG ID of Target cell in this handover required message.If Target cell is a mixed mode, also need to carry access module.
The allowed CSG list of the CSG ID of the Target cell that step 2:MME reports according to source and the UE of preservation carries out access control to UE.
Step 3: if UE allows, MME sends handoff request, and promptly handover request message is given target side, carries the CSG ID of Target cell in the message.If Target cell is the mixed mode sub-district, need carry UE membership IE.Specifically, MME sends to HeNB GW with this handover request message, and HeNB GW further sends to target HeNB with this message.
Step 4: whether CSG ID that the target side affirmation is received in handover request message and the CSG ID of oneself mate.If confirm successfully, will distribute adequate resources at source.If, need carry out different admittance control and rate controlled according to UE membership if Target cell is the mixed mode sub-district.
Step 5: target HeNB sends switching request response, and promptly handover request ack message is given MME.Specifically, target HeNB sends to HeNB GW with handover request ack message, and HeNB GW further sends to MME with this message.
Step 6:MME sends switching command, i.e. handover command message to source HeNB.Specifically, MME sends handover command message to HeNB GW, and HeNB GW further sends to source HeNB with this message.
Realize the switching of S1 interface between the HeNB by above-mentioned steps.
Problem to HeNB mobile management optimization has been proposed in R10.Fig. 3 shows the network architecture of disposing HeNB GW among the R10.As shown in Figure 3, proposed the problem to HeNB mobile management optimization among the R10, Fig. 2 is a kind of possible network architecture that comprises HeNB GW.Being X2 interface between the eNB, is the S1 interface between eNB and the MME, and HeNB can directly be connected with MME, also can be linked into MME by a centralized node HeNB GW, and HeNB can only link to each other with a HeNB GW simultaneously.HeNB and HeNB GW set up X2 interface, the terminated X2 interface of HeNB and other HeNB/macro eNB of HeNB GW.HeNB can utilize X2 interface to initiate the handoff procedure of X2 interface among the similar LTE R8, reduces the influence to core net node.
In LTE R8, macro eNB can set up process by X2 interface, know with adjacent sub-district whether have X2 interface from the bottom-layer network state, this method will be no longer suitable in the framework of above-mentioned HeNB GW termination X2 interface, do not define at present HeNB in the 3GPP standard and how to know between itself and adjacent sub-district HeNB/macro eNB whether X2 interface is arranged, when UE switched, HeNB did not have information to be used for judging that initiation X2 switches still S1 switching.
Summary of the invention
For addressing the above problem, the objective of the invention is to propose the method that a kind of base station obtains configuration information.Wherein, configuration information is used for judging that initiating X2 switches still S1 switching.By method provided by the invention, the X2 interface indication information between base station basis and the neighbor cell judges how to initiate handoff procedure, if there is X2 interface, will initiates X2 and switch, and switches otherwise will initiate S 1.Can set up in process, the X2 config update process at X2, perhaps in new X2-AP process, transmit and whether adjacent sub-district exists the information of X2 interface to the base station, this information is also preserved in the base station reception.
In order to achieve the above object, the embodiment of the invention proposes the method that a kind of configuration information obtains on the one hand, comprises the steps:
When base station foundation or management neighboring BS relationship, obtain the X2 interface indication information of adjacent sub-district;
Described base station judges according to described X2 interface indication information and whether adjacent sub-district exists X2 interface, when there are X2 interface in judgement and adjacent sub-district, preserves described X2 interface indication information.
The embodiment of the invention has also proposed a kind of base station on the other hand, comprising:
Acquisition module is used for obtaining the X2 interface indication information of adjacent sub-district when the base station is set up or managed neighboring BS relationship;
Judge and preserve module, be used for according to judging from the described X2 interface indication information of described acquisition module and whether adjacent sub-district exists X2 interface, when there are X2 interface in judgement and adjacent sub-district, preserve described X2 interface indication information.
According to the embodiment of the invention, how whether base station basis and adjacent sub-district exist X2 interface information to judge is initiated handoff procedure,, HeNB GW sets up in process, the X2 config update process at X2, transmit and whether adjacent sub-district exists the information of X2 interface to the base station, this information is also preserved in the base station reception.When user UE need switch to adjacent sub-district, if there is X2 interface, the X2 switching will be initiated in the base station, switch otherwise will initiate S 1.HeNB can use X2 interface to switch the influence that reduces core net node, has guaranteed success rate for switching.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the network architecture diagram of disposing HeNB among the R9;
Fig. 2 is the switching flow figure of S1 interface between the HeNB in the network architecture shown in Figure 1;
Fig. 3 is the network architecture diagram of disposing HeNB GW among the R10;
Fig. 4 is the FB(flow block) according to the configuration information obtaining method of the embodiment of the invention;
Fig. 5 is for to set up the process schematic diagram according to the HeNB and the X2 interface between the HeNB GW of the embodiment of the invention;
Fig. 6 is according to the X2 interface config update process schematic diagram between the HeNB of the embodiment of the invention and the HeNB GW;
Fig. 7 triggers the schematic diagram of new X2-AP process for HeNB GW;
Fig. 8 is the structural representation according to the base station of the embodiment of the invention.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
In order to realize the present invention's purpose, the embodiment of the invention has proposed the method that a kind of configuration information obtains, and as shown in Figure 4, is the FB(flow block) according to the configuration information obtaining method of the embodiment of the invention.This method comprises:
S401: when base station foundation or management neighboring BS relationship, obtain the X2 interface indication information of adjacent sub-district.
Wherein, the base station comprises HeNB (HomeeNodeB, family base station), eNodeB (enhancedNode B, expanded type base station) and Macro eNB (Macro enhanced Node B, macro base station).
The base station can obtain the X2 interface indication information by following any one mode, comprising:
(1) X2 interface between HeNB and HeNB GW is set up in the process, obtains the X2 interface indication information;
(2) in the X2 interface config update process between HeNB and HeNB GW, obtain the X2 interface indication information;
(3) in the X2-AP process between HeNB and HeNB GW, obtain the X2 interface indication information.
In conjunction with shown in Figure 5, when setting up X2 interface between HeNB and the HeNB GW and be connected, obtain the X2 interface indication information, comprise the steps:
At first send X2 interface by HeNB to HeNB GW and set up request (X2 SETUP REQUEST) message, HeNB GW returns X2 SETUPRESPONSE message to HeNB after receiving above-mentioned message then.
X2 interface is set up the existing message structure of continuing to use of response (X2 SETUP RESPONSE) message, HeNB GW in message X2 SETUP RESPONSE＞carry the X2 interface indication information that whether has X2 interface with adjacent sub-district among the Neighbour Information IE, perhaps in this cell information, comprise the cell information that has X2 interface with HeNB.HeNB obtains the X2 interface indication information according to the X2 SETUP RESPONSE message that receives.
Preferably,, when upgrading the X2 interface configuration between HeNB and HeNB GW, obtain the X2 interface indication information, comprise the steps: in conjunction with shown in Figure 6
HeNB GW initiates X2 interface config update process by sending base station configuration updating (ENB CONFIGURATION UPDATE) message to HeNB.
The structure of ENB CONFIGURATION UPDATE message is continued to use existing message structure, and HeNB GW carries the service cell information of all increases or modification.And, HeNB GW in ENBCONFIGURATION UPDATE message＞carry with the adjacent sub-district of HeNB whether have the X2 interface indication information among the Neighbour Information IE, perhaps in this cell information, comprise the cell information that has X2 interface with HeNB.HeNB obtains the X2 interface indication information according to the ENB CONFIGURATIONUPDATE message that receives.
Preferably, when setting up the X2-AP process between HeNB and HeNB GW, obtain the X2 interface indication information, comprise the steps:
The Neighbour Information IE that carries in X2 SETUP REQUEST message that HeNB GW sends according to HeNB or the ENBCONFIGURATION UPDATE message learns the information of adjacent cells of HeNB.When these HeNB information of adjacent cells change, HeNB GW will trigger this new X2-AP process, as shown in Figure 7.
In new X2-AP process, HeNB GW returns the X2 interface indication information whether adjacent sub-district exists X2 interface to HeNB.HeNB obtains the X2 interface indication information according to the new X2-AP message that receives.
Preferably, set up in process, X2 interface renewal config update process or the X2-AP process at above-mentioned X2 interface, HeNB sends X2 SETUP REQUEST or ENBCONFIGURATION UPDATE message to HeNB GW.HeNB GW is according to the X2 SETUPREQUEST or the ENB CONFIGURATION UPDATE message that receive, when the adjacent sub-district of judging HeNB GW and HeNB does not have X2 interface, HeNB GW initiates the foundation of X2 interface with the adjacent sub-district of HeNB behind the transport layer address of the adjacent sub-district that obtains HeNB.
When the base station was eNB or Macro eNB, the said method that the embodiment of the invention provides was also set up.
Preferably, when the base station is Macro eNB, can also judge whether it exists X2 interface with adjacent sub-district according to TAI (Tracking Area Identity, tracing area sign) and the mapping relations of HeNB GW.Whether specifically, Macro eNB obtains the X2 interface indication information according to the TAI information of adjacent sub-district, with the HeNB GW that judges that target HeNB is connected, and have X2 to be connected with this HeNB GW, thereby determines whether it exists X2 interface with adjacent sub-district.
S402: the base station judges according to the X2 interface indication information and whether adjacent sub-district exists X2 interface, when preservation X2 interface indication information is judged and adjacent sub-district when having X2 interface in the base station.
In conjunction with shown in Figure 5, when setting up X2 interface between HeNB and the HeNB GW and be connected, in step 401, HeNB obtains the X2 interface indication information, whether according to the X2 interface indication information that has obtained, checking in the adjacent sub-district of HeNB GW or this cell information has and the adjacent sub-district that oneself has X2 interface.If have, HeNB will preserve its X2 interface indication information.
When user equipment (UE) need switch to adjacent sub-district, HeNB judged when there is X2 interface in adjacent sub-district, initiates X2 interface and switches; If no, HeNB thinks own does not have X2 interface to be connected with these adjacent sub-districts, initiates the S1 interface and switches.
Preferably, in conjunction with shown in Figure 6, when upgrading the X2 interface configuration between HeNB and HeNB GW, in step 401, HeNB obtains the X2 interface indication information, according to the X2 interface indication information that has obtained, relatively whether have and the adjacent sub-district that oneself has X2 interface in the information of adjacent cells of HeNB GW or this cell information.If have, HeNB will preserve its X2 interface indication information.
When user equipment (UE) need switch to adjacent sub-district, HeNB judged when there is X2 interface in adjacent sub-district, initiates X2 interface and switches; If no, HeNB thinks own does not have X2 interface to be connected with these adjacent sub-districts, initiates the S1 interface and switches.Return base station configuration updating by HeNB to HeNB GW then and reply (ENBCONFIGURATION ACKNOWLEDGE) message.
According to the method that the embodiment of the invention provides, whether HeNB basis and adjacent sub-district exist the X2 interface indication information of X2 interface to judge how to initiate handoff procedure, if there is X2 interface, HeNB will initiate X2 and switch, and switch otherwise will initiate S1.HeNB GW sets up in process, the X2 config update process at X2, transmits and whether adjacent sub-district exists the information of X2 interface to HeNB, and the HeNB reception is also preserved this information, has guaranteed success rate for switching.
Preferably, when the service cell information change took place HeNB, in conjunction with shown in Figure 6, HeNB sent the X2 configuration update message to HeNB GW.
The Neighbour Information IE that HeNB GW carries in ENB CONFIGURATION UPDATE message according to HeNB decides Neighbour Information IE or this cell information that carries in the ENBCONFIGURATION UPDATE message that HeNB GW initiates next time.The Neighbour Information IE that carries in the ENB CONFIGURATIONUPDATE message of HeNB GW according to the HeNB transmission learns the information of adjacent cells of HeNB specifically, if have the adjacent sub-district that HeNB is arranged in the sub-district of other HeNB that X2 interface is connected with HeNB GW, HeNB GW can comprise the information of adjacent cells of above-mentioned HeNB in the Neighbour Information IE in next time sending to the ENB CONFIGURATION UPDATE message of HeNB, and carry the X2 interface indication information, perhaps in this cell information and eNB exist the cell information of X2 interface to utilize said method can reduce＞cell quantity or this cell information quantity that Neighbour Information IE carries.
Preferably, when setting up new X2-AP between HeNB and HeNB GW, in step 401, HeNB obtains the X2 interface indication information, according to the X2 interface indication information that has obtained, relatively whether have and the adjacent sub-district that oneself has X2 interface in the information of adjacent cells of HeNB GW or this cell information.If have, HeNB will preserve its X2 interface indication information.
When user equipment (UE) need switch to adjacent sub-district, HeNB judged when there is X2 interface in adjacent sub-district, initiates X2 interface and switches; If no, HeNB thinks own does not have X2 interface to be connected with these adjacent sub-districts, initiates the S1 interface and switches.When the base station was eNB or Macro eNB, the said method that the embodiment of the invention provides was also set up.
Preferably, when the base station was macro base station Macro eNB, Macro eNB judged according to the X2 interface indication information that obtains in the step 401 whether it exists X2 interface with adjacent sub-district.If X2 interface is arranged, Macro eNB preserves this X2 interface indication information.
When user equipment (UE) need switch to adjacent sub-district, Macro eNB judged when there is X2 interface in adjacent sub-district, initiates X2 interface and switches; If no, macro eNB thinks own does not have X2 interface to be connected with these adjacent sub-districts, then initiates the S1 interface and switches.
Accordingly, according to the configuration information obtaining method of the embodiment of the invention, as shown in Figure 8, embodiments of the invention have also proposed a kind of base station 800, comprising: acquisition module 810 and judgement and preservation module 820.Base station 800 can be respectively applied for sets up X2 interface, upgrades X2 interface and disposes and set up in the process of new X2-AP.
Wherein, the form of base station 800 comprises family base station HeNB, expanded type base station eNB or macro base station Macro eNB.
Acquisition module 810 is used for obtaining the X2 interface indication information of adjacent sub-district when setting up or manage neighboring BS relationship.
Acquisition module 810 obtains X2 interface information by following any one mode, comprising:
(1) X2 interface between acquisition module 810 and HeNB GW is set up in the process, obtains the X2 interface indication information;
(2) in the X2 interface config update process between acquisition module 810 and HeNB GW, obtain the X2 interface indication information;
(3) in the X2-AP process between acquisition module 810 and HeNB GW, obtain the X2 interface indication information.
Base station 800 further comprises sending module 840, is used to send information to base-station gateway.
In conjunction with shown in Figure 5, when setting up X2 interface between HeNB and the HeNB GW and be connected, sending module 840 sends X2 SETUP REQUEST message to HeNB GW, and HeNB GW returns X2 SETUP RESPONSE message to acquisition module 810; HeNB GW in message X2 SETUP RESPONSE＞carry the X2 interface indication information that whether has X2 interface with adjacent sub-district among the Neighbour Information IE, perhaps in this cell information, comprise the cell information that has X2 interface with HeNB.Acquisition module 810 obtains the X2 interface indication information according to the X2 SETUP RESPONSE message that receives.
Preferably, in conjunction with shown in Figure 6, when upgrading the X2 interface configuration between HeNB and HeNB GW, HeNB GW initiates X2 interface config update process by sending ENB CONFIGURATION UPDATE message to acquisition module 810.HeNB GW carries the service cell information of all increases or modification, and, HeNB GW in ENB CONFIGURATION UPDATE message＞carry with the adjacent sub-district of HeNB whether have the X2 interface indication information among the NeighbourInformation IE, perhaps in this cell information, comprise the cell information that has X2 interface with HeNB.Acquisition module 810 obtains the X2 interface indication information according to the ENB CONFIGURATION UPDATE message that receives.
Preferably, when setting up the X2-AP process between HeNB and HeNB GW, the Neighbour Information IE that carries in X2 SETUP REQUEST message that HeNB GW sends according to sending module 840 or the ENB CONFIGURATIONUPDATE message learns the information of adjacent cells of HeNB.When these HeNB information of adjacent cells change, HeNB GW will trigger this new X2-AP process, as shown in Figure 7.
In new X2-AP process, HeNB GW returns the X2 interface indication information whether adjacent sub-district exists X2 interface to HeNB.HeNB obtains the X2 interface indication information according to the new X2-AP message that receives.
When the base station was eNB or Macro eNB, the said method that the embodiment of the invention provides was also set up.
Preferably, when the base station is Macro eNB, can also judge whether it exists X2 interface with adjacent sub-district according to the mapping relations of TAI and HeNB GW.Whether specifically, acquisition module 810 obtains the X2 interface indication information according to the TAI information of adjacent sub-district, with the HeNB GW that judges that target HeNB is connected, and have X2 to be connected with this HeNB GW, thereby determines whether it exists X2 interface with adjacent sub-district.
Base station 800 also comprises to be judged and preserves module 820, is used for judging and whether adjacent sub-district exists X2 interface according to the X2 interface indication information, when judging and adjacent sub-district when having X2 interface preservation X2 interface indication information.
Base station 800 further comprises handover module 830, is used to initiate X2 interface switching or S1 interface and switches.
In conjunction with shown in Figure 5, when setting up X2 interface between HeNB and the HeNB GW and be connected, judge and preserve module 820 according to the X2 interface indication information that has obtained, judge and whether adjacent sub-district exists X2 interface, if X2 interface is arranged, preserve this X2 interface indication information.
When UE need switch to adjacent sub-district, judgement and preservation module 820 judged when there is X2 interface in adjacent sub-district that handover module 830 is initiated X2 interface and switched; If there is not X2 interface, 830 of handover modules are initiated the S1 interface and are switched.
Preferably, in conjunction with shown in Figure 6, when upgrading the X2 interface configuration between HeNB and HeNB GW, the X2 interface indication information that judgement and preservation module 820 bases have been obtained is judged and whether adjacent sub-district exists X2 interface, if X2 interface is arranged, preserves this X2 interface indication information.
When UE need switch to adjacent sub-district, judgement and preservation module 820 judged when there is X2 interface in adjacent sub-district that handover module 830 is initiated X2 interface and switched; If there is not X2 interface, 830 of handover modules are initiated the S1 interface and are switched.Sending module 840 returns ENB CONFIGURATIONACKNOWLEDGE message to HeNB GW.
Preferably, when setting up the X2-AP process between HeNB and HeNB GW, judgement and preservation module 820 are according to the X2 interface indication information that has obtained, and whether judgement and adjacent sub-district exist X2 interface, if X2 interface is arranged, preserve this X2 interface indication information.
When UE need switch to adjacent sub-district, judgement and preservation module 820 judged when there is X2 interface in adjacent sub-district that handover module 830 is initiated X2 interface and switched; If there is not X2 interface, 830 of handover modules are initiated the S1 interface and are switched.
When base station 800 forms were eNB or Macro eNB, the technique scheme that the embodiment of the invention provides was also set up.
Preferably, when base station 800 was Macro eNB, Macro eNB judged the X2 interface indication information that has obtained, declares it and whether has X2 interface with adjacent sub-district.If have, judge and preservation module 820 preservation X2 interface indication informations.
When UE need switch to adjacent sub-district, judgement and preservation module 820 judged when there is X2 interface in adjacent sub-district that handover module 830 is initiated X2 interface and switched; If no, macro eNB thinks own does not have X2 interface to be connected with these adjacent sub-districts, and 830 of handover modules are initiated the S1 interface and switched.
According to the technical scheme that the embodiment of the invention proposes, when UE switched, whether base station basis and adjacent sub-district existed X2 interface information to judge how to initiate handoff procedure, if there is X2 interface, the X2 switching will be initiated in the base station, switch otherwise will initiate S1.HeNB GW sets up in process, the X2 config update process at X2, transmits and whether adjacent sub-district exists the information of X2 interface to the base station, and the base station reception is also preserved this information, has guaranteed success rate for switching.
One of ordinary skill in the art will appreciate that and realize that all or part of step that the foregoing description method is carried is to instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, this program comprises one of step or its combination of method embodiment when carrying out.
In addition, each functional unit in each embodiment of the present invention can be integrated in the processing module, also can be that the independent physics in each unit exists, and also can be integrated in the module two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, also can adopt the form of software function module to realize.If described integrated module realizes with the form of software function module and during as independently production marketing or use, also can be stored in the computer read/write memory medium.
The above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (20)

1. the method that configuration information obtains is characterized in that, this method comprises the steps:
When adjacent cell relations is set up or managed in the base station, obtain the X2 interface indication information of adjacent sub-district;
Described base station judges according to described X2 interface indication information and whether adjacent sub-district exists X2 interface, when there are X2 interface in judgement and adjacent sub-district, preserves described X2 interface indication information.
2. the method for claim 1 is characterized in that, obtains described X2 interface indication information and comprises following any one mode:
Described base station and base-station gateway between X2 interface set up and obtain described X2 interface indication information in the process;
Described base station and described base-station gateway between X2 interface config update process in obtain described X2 interface indication information;
Described base station and described base-station gateway between the X2-AP process in obtain described X2 interface indication information.
3. method as claimed in claim 2 is characterized in that, described base station and described base-station gateway between X2 interface set up and obtain described X2 interface indication information in the process, comprise the steps:
Described base station sends X2 SETUP REQUEST message to described base-station gateway;
Described base station receives the X2 SETUP RESPONSE message that described base-station gateway sends, and obtains described X2 interface indication information according to the described X2 SETUP RESPONSE message that receives.
4. method as claimed in claim 3 is characterized in that, described X2 SETUP RESPONSE message comprises in the X2 interface indication information of adjacent sub-district, described base station or this sub-district, described base station and comprises the cell information that has X2 interface with described base station.
5. method as claimed in claim 2 is characterized in that, described base station and described base-station gateway between X2 interface config update process in obtain described X2 interface indication information, comprise the steps:
Described base station receives the ENB CONFIGURATION UPDATE message that described base-station gateway sends, and obtains described X2 interface indication information according to described ENB CONFIGURATION UPDATE message.
6. method as claimed in claim 5, it is characterized in that described ENB CONFIGURATIONUPDATE message comprises in the X2 interface indication information of the service cell information of all increases or modification, adjacent sub-district or this sub-district, described base station and comprises the cell information that has X2 interface with described base station.
7. method as claimed in claim 5 is characterized in that, described base station and described base-station gateway between X2 interface config update process in, when described base station service cell information takes place changes, also comprise the steps:
Described base-station gateway receives the X2 configuration update message that described base station sends,
Described base-station gateway is according to receiving described X2 configuration update message, judge whether to exist the adjacent sub-district that X2 interface is arranged with described base-station gateway, if the adjacent sub-district that X2 interface is arranged with described base-station gateway is arranged, then described base-station gateway comprises the information and the X2 interface indication information of described adjacent sub-district next time in sending to the ENB CONFIGURATION UPDATE message of described base station.
8. method as claimed in claim 2 is characterized in that, described base station and described base-station gateway between the X2-AP process in obtain described X2 interface indication information, comprise the steps:
Described base station sends X2 SETUP REQUEST or ENBCONFIGURATION UPDATE message to described base-station gateway, comprises the information of adjacent cells of described base station in described X2 SETUP REQUEST or the ENBCONFIGURATION UPDATE message;
When the information of adjacent cells of described base station changed, described base-station gateway triggered the X2-AP process, and in described X2-AP process, described base station receives the described X2 interface indication information that described base-station gateway transmits.
9. the method for claim 1, it is characterized in that, described base station sends X2SETUP REQUEST or ENB CONFIGURATION UPDATE message to base-station gateway, described base-station gateway is according to described X2 SETUP REQUEST or ENB CONFIGURATION UPDATE message, when the adjacent sub-district of judging described base-station gateway and described base station does not have X2 interface, described base-station gateway is initiated the foundation of X2 interface with the adjacent sub-district of described base station behind the transport layer address of the adjacent sub-district that obtains described base station.
10. the method described in claim 1 is characterized in that, when described base station is macro base station MacroeNB, obtains described X2 interface indication information and comprises the steps:
Described macro base station Macro eNB obtains described X2 interface indication information according to the TAI information of adjacent sub-district.
11. the method for claim 1 is characterized in that, when user equipment (UE) need switch to adjacent sub-district, described base station was judged when there is X2 interface in described adjacent sub-district, initiates X2 interface and switches; If there is not X2 interface, then initiates the S1 interface and switch.
12. a base station is characterized in that, comprises acquisition module and judgement and preserves module,
Described acquisition module is used for obtaining the X2 interface indication information of adjacent sub-district when setting up or manage neighboring BS relationship;
Described judgement and preserve module is used for according to judging from the described X2 interface indication information of described acquisition module and whether adjacent sub-district exists X2 interface, when there are X2 interface in judgement and adjacent sub-district, preserves described X2 interface indication information.
13. base station as claimed in claim 12 is characterized in that, described base station comprises family base station HeNB, expanded type base station eNB and macro base station Macro eNB.
14. base station as claimed in claim 13 is characterized in that, described acquisition module obtains described X2 interface indication information by following any one mode,
Described acquisition module and base-station gateway between X2 interface set up and obtain described X2 interface indication information in the process;
Described acquisition module and described base-station gateway between X2 interface config update process in obtain described X2 interface indication information;
Described acquisition module and described base-station gateway between the X2-AP process in obtain described X2 interface indication information.
15. base station as claimed in claim 14 is characterized in that, when described acquisition module and described base-station gateway between X2 interface config update process in when obtaining described X2 interface indication information,
Described acquisition module receives the ENB CONFIGURATION UPDATE message that described base-station gateway sends, and according to described ENB CONFIGURATION UPDATE message, obtains described X2 interface indication information.
16. base station as claimed in claim 14 is characterized in that, described base station also comprises sending module,
When described acquisition module and described base-station gateway between X2 interface set up when obtaining described X2 interface indication information in the process,
Described sending module sends X2 SETUP REQUEST message to described base-station gateway;
Described acquisition module receives the X2 SETUP RESPONSE message that described base-station gateway sends, and obtains described X2 interface indication information according to the X2 SETUP RESPONSE message that receives.
17. base station as claimed in claim 16 is characterized in that, when described acquisition module and described base-station gateway between the X2-AP process in when obtaining described X2 interface indication information,
Described sending module sends X2 SETUP REQUEST or ENBCONFIGURATION UPDATE message to described base-station gateway, comprises the information of adjacent cells of described base station in described X2 SETUP REQUEST or the ENBCONFIGURATION UPDATE message;
When the information of adjacent cells of described base station changed, described base-station gateway triggered the X2-AP process, and in described X2-AP process, described acquisition module receives the described X2 interface indication information that described base-station gateway transmits.
18. base station as claimed in claim 16, it is characterized in that, described sending module sends X2 SETUP REQUEST or ENB CONFIGURATION UPDATE message to base-station gateway, described base-station gateway is according to described X2 SETUP REQUEST or ENB CONFIGURATION UPDATE message, when the adjacent sub-district of judging described base-station gateway and described base station does not have X2 interface, described base-station gateway is initiated the foundation of X2 interface with the adjacent sub-district of described base station behind the transport layer address of the adjacent sub-district that obtains described base station.
19. base station as claimed in claim 13 is characterized in that, when described base station was macro base station MacroeNB, described macro base station Macro eNB judged according to the TAI information of adjacent sub-district, obtains described X2 interface indication information.
20. base station as claimed in claim 13 is characterized in that, described base station also comprises handover module,
When UE need switch to adjacent sub-district, described judgement and preservation module judged when there is X2 interface in described adjacent sub-district that described handover module is initiated X2 interface and switched; If there is not X2 interface, described handover module is then initiated the S1 interface and is switched.
CN2010191140319A 2010-02-04 2010-02-04 Method for acquiring configuration information and base station Pending CN102111833A (en)

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