CN103945423A - Method for optimizing neighbor cell list of base station and base station - Google Patents
Method for optimizing neighbor cell list of base station and base station Download PDFInfo
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- CN103945423A CN103945423A CN201310022387.6A CN201310022387A CN103945423A CN 103945423 A CN103945423 A CN 103945423A CN 201310022387 A CN201310022387 A CN 201310022387A CN 103945423 A CN103945423 A CN 103945423A
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Abstract
The invention relates to a method for optimizing a neighbor cell list of a base station and a base station. The method includes the following steps: a source base station packages neighbor cell list configuring information to relocation preparation signaling, and sends the relocation preparation signaling to a target base station; and the target base station receives the relocation preparation signaling and performs neighbor cell list optimization operation according to the signal. According to the method, the neighbor cell list configuring information is packaged in the relocation preparation signaling in a UE switching process, existence of a neighbor cell relation between base stations is determined through the relocation preparation signaling, and a neighbor cell one-way configuration problem in a system can be discovered automatically, at the same time, the relocation preparation signaling carries the neighbor cell list configuring information of the base station to a base station that the neighbor cell belongs to during UE switching, and the neighbor cell list can be updated in time after determining the neighbor cell one-way configuration problem, thereby realizing timely updating of a neighbor cell list of a base station in a neighbor cell relation with a new base station, realizing neighbor cell two-way configuration, and optimizing network quality.
Description
Technical field
The present invention relates to the optimizing neighbor list in mobile communication technology field, particularly method and a kind of base station of Neighboring Cell List optimized in a kind of base station.
Background technology
In the application of current mobile communication, by base station, be normally UE(User Equipment, subscriber equipment) provide service, mobility due to UE, certain UE may move to from the coverage of certain base station the coverage of another base station, and in other words in UE moving process, the power of another base station performance higher or that provide for this UE is better, therefore the annexation of UE and base station need to be switched to another base station from current base station, think that UE provides better service.For this reason, need in base station, configure correct Neighboring Cell List, be convenient to UE and carry out correct switching, guarantee the continuity of customer service.
With Femto base station (femto base station, be called again Home NodeB) be example, Femto base station is a kind of mainly towards average family and medium-sized and small enterprises client, NodeB equipment that coverage is less, for improving the indoor covering of 3G network, in Femto base station, need to configure correct Neighboring Cell List for it, be convenient to UE(User Equipment, subscriber equipment) carry out correct switching, guarantee the continuity of customer service.
Femto base station adopts SON(Self-Origanized Network, self-organizing network) method manages its Neighboring Cell List.SON method comprises self-configuring, self-optimizing, self-healing.When self-configuring refers to that Femto base station powers on, can automatically detect adjacent area around, configuring neighbor cell list.Self-optimizing is that Neighboring Cell List can regularly be optimized in the course of the work in Femto base station, optimizes at regular intervals Neighboring Cell List.When self-healing refers to break down in Femto base station, can from fault, automatically recover.Femto base station, Neighboring Cell List being carried out to periodicity while optimizing, can have influence on carrying out of business, thus time of periodically optimizing of its Neighboring Cell List should not arrange too shortly, generally, this cycle, all with several hours, for example 24 hours, arranges.
In the use procedure of current Femto base station, if there is new Femto base station to power on around, this Femto base station can not detect the variation of peripheral base station at once, this new Femto base station can not be detected at once, thereby can not upgrade in time Neighboring Cell List, Femto base station must latent period the optimization time to rear, just can optimize Neighboring Cell List, upgrade neighboring BS information.
According to occupation mode and the optimal way of current this Femto base station, if there is new Femto base station to power on around, this its Neighboring Cell List of new Femto base station meeting self-configuring, in list, there is this Femto base station (the Femto base station that has existed before or powered on), but its Neighboring Cell List is not upgraded in this Femto base station before the optimization time expires, so can not comprise this new Femto base station in its Neighboring Cell List.Therefore, new Femto base station power on optimization time of this Femto base station overdue during this period of time in, in the Neighboring Cell List of new Femto base station, there is this Femto base station, but in the Neighboring Cell List of this Femto base station, there is not this new Femto base station, form the unidirectional configuration of adjacent area, thereby impact is switched, and causes call drop.
Summary of the invention
Based on this, for above-mentioned problems of the prior art, the object of the present invention is to provide a kind of base station to optimize method and a kind of base station of Neighboring Cell List, it can realize the upgrading in time of Neighboring Cell List that has the base station of neighboring BS relationship with new base station, realizes the Double Faces to Install of adjacent area.
For achieving the above object, the present invention by the following technical solutions:
A method for Neighboring Cell List is optimized in base station, comprises step:
Source base station is prepared signaling by configuring neighbor cell list Information encapsulation to reorientation, and this reorientation preparation signaling is sent to target BS;
Target BS receives and according to described reorientation, prepares signaling and carry out optimizing neighbor list operation.
A base station, comprising:
Signaling encapsulation unit, for configuring neighbor cell list Information encapsulation is prepared to signaling to the first reorientation, and is sent to corresponding target BS by this first reorientation preparation signaling;
Analytical optimization unit, for when receiving the second corresponding reorientation preparation signaling, prepares signaling according to this second reorientation and carries out optimizing neighbor list operation.
According to the present invention, to prepare package arrangements adjacent area list information in signaling by the reorientation in UE handoff procedure, by reorientation, preparing signaling determines and between base station, has neighboring BS relationship, the unidirectional allocation problem in adjacent area in can discovery system, simultaneously, reorientation while switching by UE is prepared configuring neighbor cell list information that signaling carries base station to base station under its adjacent area, Neighboring Cell List can upgrade in time after the unidirectional allocation problem in definite adjacent area, realized the upgrading in time of Neighboring Cell List that has the base station of neighboring BS relationship with new base station, realize the Double Faces to Install of adjacent area, optimized network quality.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet that the embodiment of the method one of Neighboring Cell List is optimized in base station of the present invention;
Fig. 2 is the schematic flow sheet that the embodiment of the method two of Neighboring Cell List is optimized in base station of the present invention;
Fig. 3 is that in a specific embodiment, the endogenous Femto of same gateway prepares signalling to the schematic diagram of target Femto base station by reorientation in base station;
Fig. 4 be in a specific embodiment between different gateways Femto base station, source reorientation is prepared to signalling to the schematic diagram of target Femto base station;
Fig. 5 adds the schematic diagram of flag in a concrete example;
Fig. 6 is the structural representation of base station embodiment mono-of the present invention;
Fig. 7 is the structural representation of base station embodiment bis-of the present invention.
Embodiment
Below in conjunction with better embodiment wherein, the present invention program is described in detail.The type of the base station that the present invention is mentioned can be the base station of any one type.In the explanation of following each example of the present invention, be to take the type of base station to describe as Femto base station as example, this explanation is not in order to form restriction to the present invention program.
Embodiment mono-
Base station of the present invention has been shown in Fig. 1 and has optimized the schematic flow sheet of the embodiment of the method one of Neighboring Cell List.As shown in Figure 1, the method in the present embodiment comprises step:
Step S101: source base station is prepared signaling by configuring neighbor cell list Information encapsulation to reorientation, and this reorientation preparation signaling is sent to target BS;
Step S102: target BS receives and prepares signaling according to described reorientation and carry out optimizing neighbor list operation.
According to the scheme in the present embodiment, to prepare package arrangements adjacent area list information in signaling by the reorientation in UE handoff procedure, by reorientation, preparing signaling determines and between base station, has neighboring BS relationship, the unidirectional allocation problem in adjacent area in can discovery system, simultaneously, reorientation while switching by UE is prepared configuring neighbor cell list information that signaling carries base station to base station under its adjacent area, Neighboring Cell List can upgrade in time after the unidirectional allocation problem in definite adjacent area, realized the upgrading in time of Neighboring Cell List that has the base station of neighboring BS relationship with new base station, realize the Double Faces to Install of adjacent area, optimized network quality.
In the application of actual base station, when certain user equipment (UE) in certain base station range is about to leave the coverage of this base station, need to carry out UE switching, to guarantee that this UE can realize continuous, continual complete call.When carrying out UE switching, before switching, between the source base station at UE place and the to be switched target BS extremely of UE, can send signaling and carry out reorientation beamhouse operation, send reorientation preparation signaling, so that carry out UE switching.
When having new base station (being designated as A) to power on, come into operation, this new base station A can automatically find adjacent base station around and these base stations be added to the Neighboring Cell List of self.And for these adjacent base stations, certain the base station B adjacent with this new base station A of take is example, before the adjacent-area list renewing cycle of base station B arrives, can not in time this new base station A be joined in the Neighboring Cell List of self.Thereby, during this period of time, in the time of outside having UE to be about to move to the coverage of base station B, even if the coverage power of new base station A is the highest, also this UE can only be switched to existing other base station in the Neighboring Cell List of base station B, and can not be switched to this new base station A, thereby may have influence on the speech quality of UE.And include base station B in Neighboring Cell List due to new base station A, thereby new base station A can send reorientation to base station B and prepare signaling, can realize smoothly the switching from new base station A to base station B,
Therefore, when need to certain, the UE in the A coverage of new base station switches, this new base station A can send reorientation to adjacent base station and prepare signaling, based on this, the present invention prepares signaling by this reorientation the information of the configuring neighbor cell list of new base station A is sent to base station B, is convenient to base station B new base station A is added in the Neighboring Cell List of oneself.
In actual applications, can be, for each base station, such mechanism is set, when each source base station will send reorientation preparation signaling to adjacent target BS, the information of the configuring neighbor cell list that all comprises this source base station in this reorientation preparation signaling, be convenient to target BS and check that this source base station is whether in the Neighboring Cell List of oneself, be beneficial at source base station, not in the situation that the Neighboring Cell List of target BS, this source base station to be added to the Neighboring Cell List of target BS.
In another kind application, can be only in certain hour section, the base station that newly powers on, newly come into operation arranges such mechanism,, only has the new base station of newly coming into operation within a certain period of time, the information of the configuring neighbor cell list that just comprises this source base station in the reorientation preparation signaling sending to target BS.Based on actual needs, which base station can be freely set and do such mechanism, at this, will not repeat in detail.
Wherein, above-mentioned target BS is when carrying out optimizing neighbor list operation, and this optimizing neighbor list operation can be specifically:
Target BS is prepared to parse configuring neighbor cell list information signaling from reorientation, judges whether the Neighboring Cell List of self includes above-mentioned source base station according to this configuring neighbor cell list information;
If do not comprise, source base station is added to the Neighboring Cell List of self, upgrade and preserve Neighboring Cell List.
The Neighboring Cell List length of base station, generally has a default maximum, presets maximum Neighboring Cell List length, and this value can be according to communication protocol and actual requirement setting.Therefore, above-mentioned during to adjacent-area list renewing, if the length of the Neighboring Cell List after upgrading is greater than default maximum Neighboring Cell List length, delete the base station of received field strength minimum in the Neighboring Cell List before upgrading, so that source base station can be added in the Neighboring Cell List of this target BS.The received field strength here, take TD-SCDMA Femto base station is example, generally to embody with PCCPCHRSCP value, accordingly, in the situation that above-mentioned source base station, target BS are TD-SCDMA Femto base station, when the length of the Neighboring Cell List after renewal is greater than default maximum Neighboring Cell List length, it can be the minimum TD-SCDMA Femto base station of PCCPCH RSCP value in the Neighboring Cell List of deleting before upgrading.
Embodiment bis-
Base station of the present invention has been shown in Fig. 2 and has optimized the schematic flow sheet of the embodiment of the method two of Neighboring Cell List.The difference of the present embodiment and above-described embodiment one is mainly, in the present embodiment, source base station is when preparing signaling by configuring neighbor cell list Information encapsulation to reorientation, also in reorientation, prepare to add flag in signaling, to identify reorientation, prepare to include configuring neighbor cell list information in signaling.
As shown in Figure 2, the method in the present embodiment comprises step:
Step S201: source base station is prepared signaling by configuring neighbor cell list Information encapsulation to reorientation, in reorientation, prepare the preset field of signaling and add flag, and this reorientation preparation signaling is sent to target BS, wherein, this flag is prepared whether to include configuring neighbor cell list information in signaling in order to identify reorientation;
Step S202: target BS receives described reorientation and prepares signaling, resolve and judge that this reorientation prepares whether to have flag in the preset field of signaling, if so, judge in described reorientation preparation signaling and include configuring neighbor cell list information, enter step S203;
Step S203: prepare to parse configuring neighbor cell list information signaling from above-mentioned reorientation, judge according to this configuring neighbor cell list information whether the Neighboring Cell List of self comprises above-mentioned source base station, if do not comprise, enter step S204;
Step S204: target BS adds this self Neighboring Cell List by source base station, upgrades and preserves Neighboring Cell List.
According to the scheme in the present embodiment, when configuring neighbor cell list information being added to reorientation preparation signaling, also in this reorientation, prepare the preset field interpolation flag of signaling, to identify this reorientation, prepare to be added with configuring neighbor cell list information in signaling, target BS is prepared whether to comprise this flag in signaling by resolving reorientation, can know the information that whether has configuring neighbor cell list in reorientation preparation signaling, and in the situation that defining flag, parse configuring neighbor cell list information, improved treatment effeciency.
Identical with above-described embodiment one of other technologies feature in the present embodiment two, will not repeat in detail at this.
Below in conjunction with the method in above-described embodiment two, take base station as TD-SCDMA Femto base station is example, with regard to one of them specific implementation, be elaborated.
When UE switches, between Femto base station, source and target Femto base station, can send signaling and carry out reorientation beamhouse operation, be that signaling is prepared in the mentioned reorientation of the invention described above scheme, comprising RELOCATION REQUIRED signaling and RELOCATION REQUEST signaling.When the Information encapsulation of configuring neighbor cell list is prepared to signaling to reorientation, the Information encapsulation of configuring neighbor cell list can be prepared to any one temporary transient untapped field in signaling to reorientation.In this example of the present invention, that to adopt the information of the Source RNC To Target RNC Transparent Container field package arrangements Neighboring Cell List in RELOCATION REQUIRED and these two signalings of RELOCATION REQUEST be that example describes, this is only a kind of exemplary illustration, not in order to the present invention program is formed to restriction.
In RELOCATION REQUIRED and these two signalings of RELOCATION REQUEST, all include Source RNC To Target RNC Transparent Container field, the present invention encapsulates the relevant configuration adjacent area list information of Femto base station, source in temporary transient untapped certain field in RRC Container in Source RNC To Target RNC Transparent Container, optional field for example, then by this reorientation transmission of messages to target Femto base station.
UE switches to target Femto base station from Femto base station, source, can know between Femto base station, source and target Femto base station and have neighboring BS relationship, the present invention program prepares signaling by reorientation, and the configuring neighbor cell list communication of Femto base station, source is arrived to target Femto base station.
The endogenous Femto of same gateway in a concrete example has been shown in Fig. 3 and base station reorientation has been prepared to signalling to the schematic diagram of target Femto base station.Femto base station, source between different gateways has been shown in Fig. 4 in a concrete example reorientation has been prepared to signalling to the schematic diagram of target Femto base station.
Shown in Fig. 3, Fig. 4, in a concrete example of the present invention, Femto base station, source is entered the Information encapsulation of its configuring neighbor cell list in the RRC Container field of Source RNC To Target RNC Transparent Container field of RELOCATION REQUIRED.Particularly, source Femto base station can be by the Information encapsulation of configuring neighbor cell list in the Source RNC of RELOCATION REQUIRED signaling To Target RNC Transparent Container in RRC Container in temporary transient untapped optional field.
The information of the configuring neighbor cell list of TD-SCDMA Femto base station has generally comprised: RNC ID(Radio Network ControllerIdentity, radio network controller identifier), CID(Cell Identity, cell ID), LAC(Location Area Code, Location Area Code), RAC (Routing Area Code, Route Area code), URA ID (UTRAN Registration Area Identity, UTRAN Acceditation Area sign), PCCPCHTxPower(PCCPCH transmitting power), uarfcn(frequency), cellparametersId(scrambler).Therefore the information that, Femto base station in source need to encapsulate can include: RNC ID, CID, LAC, RAC, URAID, PCCPCHTxPower, uarfcn, cellParametersId.
Wherein, the RNC ID in these information is used for distinguishing Femto base station, source and target Femto base station whether in same gateway.Thereby, by the RNC ID of Femto base station, source and target Femto base station, just can judge whether UE is to switch in gateway: if Femto base station, source is identical with the RNC ID of target Femto base station, be to switch in gateway, otherwise for switching between gateway.
In order to distinguish reorientation, prepare whether to comprise in signaling the information of the configuring neighbor cell list of active Femto base station, in this concrete example of the present invention, also to encapsulating certain field of reorientation preparation signaling of the configuring neighbor cell list information of active Femto base station, process, add flag, by this flag, indicate or identify the information that reorientation prepares whether to comprise in signaling the configuring neighbor cell list of active Femto base station.Adding the field of flag and the field of above-mentioned package arrangements adjacent area list information, can be positioned under same larger field, can be also two different fields of onrelevant relation, can do different settings according to actual needs.
In this concrete example of the present invention, the Altitude field of take is placed flag and is described as example, and Altitude field is arranged in Ellipsoid point with altitude field under the Last known UE po sition field in RRC information container.
In Altitude field, encapsulate RNC ID, Altitude field has 15bit, and RNC ID has 12bit.For distinguish the configuring neighbor cell list that comprises active Femto base station information signaling and do not comprise the signaling of information of the configuring neighbor cell list of Femto base station, source, can process Altitude field, wherein 12bit is used for transmitting RNC ID, remaining 3bit is arranged, for distinguishing signaling.Altitude itself is for representing the height of UE, unit is rice, in example of the present invention, as shown in Figure 5, the front three of Altitude is extended this as to 1,111, to identify the signaling of the information of the configuring neighbor cell list that comprises active Femto base station, after fill in RNC ID, can use the data separation of this field to come with other.In other application mode, also can identify by other information the signaling of the information of the configuring neighbor cell list that comprises active Femto base station.
Then, by reorientation signaling RELOCATION REQUIRED and RELOCATION REQUEST, the configuring neighbor cell list information of Femto base station, source is sent to target Femto base station.In the RRC Cotainer field of the S ource RNC To Target RNC Transparent Container field in RELOCATION REQUIRED signaling, encapsulate the configuring neighbor cell list information that active Femto base station need to send.Gateway or core net are received after RELOCATION RQEUIRED signaling, extract " Source RNC To Target RNC Transparent Container " and are transmitted to target Femto base station by RELOCATION REQUEST signaling.
Target Femto receives base station after RELOCATION REQUEST signaling, resolve signaling, the information of the Femto base station, source that analysis receives, judges whether Femto base station, source to be configured to its adjacent area according to the relevant field information in RRC information container.Can be specifically as described below.
Target Femto receives base station after RELOCATION REQUEST signaling, resolve signaling, analyze the Last known UE position field in RRC information container in " Source RNC To Target RNC Transparent Container ", obtain under this field the content of Altitude field in Ellipsoid point with altitude field.The content of analyzing Altitude field, if its front three is 1, illustrates the information of the configuring neighbor cell list that comprises active Femto base station in this signaling, enters subsequent processes, otherwise is left intact.
Then, from RRC Container, encapsulate the relevant information that obtains the source Femto base station relevant to adjacent area interworking in the respective field of configuring neighbor cell list information of active Femto base station, specifying information can comprise: RNC ID, CID, LAC, RAC, URA ID, PCCPCHTxPower(PCCPCH transmitting power), uarfcn, cellParametersId.
Then, uarfcn and cellParametersId in the Neighboring Cell List of target Femto base station inquiry self, if find not have uarfcn and the cellParametersId of Femto base station, source, add self Neighboring Cell List by Femto base station, source, upgrade, and preserve the Neighboring Cell List after upgrading.
When upgrading, if the length of the Neighboring Cell List after upgrading is greater than default maximum Neighboring Cell List length, can be the minimum Femto base station of PCCPCH RSCP value in the Neighboring Cell List of deleting before upgrading.
According to the method for the base station configuring neighbor cell list of the invention described above, the present invention also provides a kind of base station.Embodiment for base station of the present invention is elaborated below.
Embodiment mono-
The structural representation of base station embodiment mono-of the present invention has been shown in Fig. 6.As shown in Figure 6, the base station in the present embodiment comprises:
Signaling encapsulation unit 601, for configuring neighbor cell list Information encapsulation is prepared to signaling to reorientation, (signaling is prepared in the reorientation that base station sends, be referred to as the first reorientation and prepare signaling), and this first reorientation preparation signaling is sent to corresponding target BS;
Analytical optimization unit 602, for when receiving corresponding reorientation preparation signaling (signaling is prepared in the reorientation that base station receives, and is referred to as the second reorientation and prepares signaling), prepares signaling according to this second reorientation and carries out optimizing neighbor list operation.
According to the scheme in the present embodiment, to prepare package arrangements adjacent area list information in signaling by the reorientation in UE handoff procedure, by reorientation, preparing signaling determines and between base station, has neighboring BS relationship, the unidirectional allocation problem in adjacent area in can discovery system, simultaneously, reorientation while switching by UE is prepared configuring neighbor cell list information that signaling carries base station to base station under its adjacent area, Neighboring Cell List can upgrade in time after the unidirectional allocation problem in definite adjacent area, realized the upgrading in time of Neighboring Cell List that has the base station of neighboring BS relationship with new base station, realize the Double Faces to Install of adjacent area, optimized network quality.
As shown in Figure 6, this analytical optimization unit 602 specifically can comprise:
Information analysis unit 6021, parses configuring neighbor cell list information for preparing signaling from the second reorientation;
Judging unit 6022, judges for the configuring neighbor cell list information parsing according to information analysis unit 6021 whether the Neighboring Cell List of self comprises the source base station that signaling is prepared in above-mentioned the second reorientation;
Updating block 6023, while being no for the result of determination at judging unit 6022, prepares by the second reorientation the Neighboring Cell List that source base station in signaling adds self, upgrades and preserves Neighboring Cell List.
The Neighboring Cell List length of base station, generally has a default maximum, presets maximum Neighboring Cell List length, and this value can be according to communication protocol and actual requirement setting.Therefore, updating block 6023 is when to adjacent-area list renewing, if the length of the Neighboring Cell List after upgrading is greater than default maximum Neighboring Cell List length, delete the base station of received field strength minimum in the Neighboring Cell List before upgrading, so that source base station can be added in the Neighboring Cell List of this target BS.The received field strength here, take TD-SCDMA Femto base station is example, generally to embody with PCCPCH RSCP value, accordingly, in the situation that above-mentioned source base station, target BS are TD-SCDMA Femto base station, when the length of the Neighboring Cell List after renewal is greater than default maximum Neighboring Cell List length, it can be the minimum TD-SCDMA Femto base station of PCCPCH RSCP value in the Neighboring Cell List of deleting before upgrading.
Embodiment bis-
The structural representation of base station embodiment bis-of the present invention has been shown in Fig. 7.In the present embodiment, mainly be with the difference of above-described embodiment one, in the present embodiment, source base station is when preparing signaling by configuring neighbor cell list Information encapsulation to reorientation, also in reorientation, prepare to add flag in signaling, to identify reorientation, prepare to include configuring neighbor cell list information in signaling.
As shown in Figure 7, the base station in the present embodiment comprises:
Signaling encapsulation unit 601, for configuring neighbor cell list Information encapsulation is prepared to signaling to reorientation, (signaling is prepared in the reorientation that base station sends, be referred to as the first reorientation and prepare signaling), this first reorientation is prepared the preset field of signaling and is added flag, and this first reorientation preparation signaling is sent to corresponding target BS, wherein, this flag is prepared whether to include configuring neighbor cell list information in signaling in order to identify reorientation;
Analytical optimization unit 602, for when receiving corresponding reorientation preparation signaling (signaling is prepared in the reorientation that base station receives, and is referred to as the second reorientation and prepares signaling), prepares signaling according to this second reorientation and carries out optimizing neighbor list operation.
Wherein, this analytical optimization unit 602 specifically can comprise:
Flag resolution unit 6020, prepares signaling for resolving the second reorientation, judges that this second reorientation prepares whether to have flag in the described preset field of signaling;
Information analysis unit 6021, for when flag resolution unit 6020 judges that above-mentioned preset field includes flag, judge in described reorientation preparation signaling and include configuring neighbor cell list information, and prepare to parse configuring neighbor cell list information signaling from the second reorientation;
Judging unit 6022, judges for the configuring neighbor cell list information parsing according to information analysis unit 6021 whether the Neighboring Cell List of self comprises the source base station that signaling is prepared in above-mentioned the second reorientation;
Updating block 6023, while being no for the result of determination at judging unit 6022, prepares by the second reorientation the Neighboring Cell List that source base station in signaling adds self, upgrades and preserves Neighboring Cell List.
Updating block 6023 is when to adjacent-area list renewing, if the length of the Neighboring Cell List after upgrading is greater than default maximum Neighboring Cell List length, delete the cell base station of received field strength minimum in the Neighboring Cell List before upgrading, so that source base station can be added in the Neighboring Cell List of this target BS.
The specific implementation of each base station of the present invention, comprise that package arrangements adjacent area list information arrives mode, the mode of interpolation flag of reorientation preparation signaling, resolves the mode that signaling is prepared in reorientation, can be with the method for the invention described above identical, at this, will not repeat in detail.
In the above description, to take Femto base station to describe as example, this explanation is not in order to form restriction to the present invention program, those skilled in the art can learn, the scheme of the invention described above can be applied to the base station of other types, thereby realize the optimization to the Neighboring Cell List of base station, will not exhaustive repeating at this.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (12)
1. a method for Neighboring Cell List is optimized in base station, it is characterized in that, comprises step:
Source base station is prepared signaling by configuring neighbor cell list Information encapsulation to reorientation, and this reorientation preparation signaling is sent to target BS;
Target BS receives and according to described reorientation, prepares signaling and carry out optimizing neighbor list operation.
2. the method for Neighboring Cell List is optimized in base station according to claim 1, it is characterized in that, described optimizing neighbor list operation comprises:
From described reorientation, prepare to parse described configuring neighbor cell list information signaling, according to described configuring neighbor cell list information, judge whether the Neighboring Cell List of self comprises described source base station;
If do not comprise, described source base station is added to the Neighboring Cell List of self, upgrade and preserve Neighboring Cell List.
3. the method for Neighboring Cell List is optimized in base station according to claim 1, it is characterized in that, also comprises step:
In reorientation, prepare the preset field of signaling and add flag, this flag is prepared whether to include configuring neighbor cell list information in signaling in order to identify reorientation.
4. the method for Neighboring Cell List is optimized in base station according to claim 3, it is characterized in that, described optimizing neighbor list operation comprises:
Resolve described reorientation and prepare signaling, according to whether there being flag to judge in described reorientation preparation signaling whether include configuring neighbor cell list information in the preset field of described reorientation preparation signaling;
If there is flag, judge in described reorientation preparation signaling and include configuring neighbor cell list information, and prepare to parse described configuring neighbor cell list information signaling from described reorientation, according to described configuring neighbor cell list information, judge whether the Neighboring Cell List of self comprises described source base station;
If do not comprise, described source base station is added to the Neighboring Cell List of self, upgrade and preserve Neighboring Cell List.
5. according to the base station described in claim 2 or 4, optimize the method for Neighboring Cell List, it is characterized in that, when the length of the Neighboring Cell List after renewal is greater than default maximum Neighboring Cell List length, delete the base station of received field strength minimum in the Neighboring Cell List before upgrading.
6. according to the base station described in claim 1 to 4 any one, optimize the method for Neighboring Cell List, it is characterized in that, described base station is Femto base station.
7. a base station, is characterized in that, comprising:
Signaling encapsulation unit, for configuring neighbor cell list Information encapsulation is prepared to signaling to the first reorientation, and is sent to corresponding target BS by this first reorientation preparation signaling;
Analytical optimization unit, for when receiving the second corresponding reorientation preparation signaling, prepares signaling according to this second reorientation and carries out optimizing neighbor list operation.
8. base station according to claim 7, is characterized in that, described analytical optimization unit comprises:
Information analysis unit, parses configuring neighbor cell list information for preparing signaling from described the second reorientation;
Judging unit, judges for the configuring neighbor cell list information going out according to described information analysis unit resolves whether the Neighboring Cell List of self comprises the source base station that signaling is prepared in described the second reorientation;
Updating block, while being no for the result of determination at described judging unit, prepares by described the second reorientation the Neighboring Cell List that source base station in signaling adds self, upgrades and preserves Neighboring Cell List.
9. base station according to claim 7, it is characterized in that, described signaling encapsulation unit, also for when configuring neighbor cell list Information encapsulation is prepared to signaling to the first reorientation, in the first reorientation, prepare the preset field of signaling and add flag, this flag is prepared whether to include configuring neighbor cell list information in signaling in order to identify described the first reorientation.
10. base station according to claim 9, is characterized in that, described analytical optimization unit comprises:
Flag resolution unit, prepares signaling for resolving described the second reorientation, judges that this second reorientation prepares whether to have flag in the described preset field of signaling;
Information analysis unit, for when described flag resolution unit judges that described preset field includes flag, judge in described reorientation preparation signaling and include configuring neighbor cell list information, and prepare to parse described configuring neighbor cell list information signaling from this second reorientation;
Judging unit, judges for the configuring neighbor cell list information going out according to described information analysis unit resolves whether the Neighboring Cell List of self comprises the source base station that signaling is prepared in described the second reorientation;
Updating block, while being no for the result of determination at described judging unit, prepares by described the second reorientation the Neighboring Cell List that source base station in signaling adds self, upgrades and preserves Neighboring Cell List.
Base station described in 11. according to Claim 8 or 10, is characterized in that, described updating block, while being also greater than default maximum Neighboring Cell List length for the length of the Neighboring Cell List after renewal, is deleted the base station of received field strength minimum in the Neighboring Cell List before upgrading.
12. according to the base station described in claim 7 to 10 any one, it is characterized in that, described base station is Femto base station.
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